U.S. patent application number 15/355216 was filed with the patent office on 2017-03-09 for remote control system for controlling operation of a fan assembly.
The applicant listed for this patent is Direct Success, LLC. Invention is credited to Bruce Dorendorf, Greg Parkhurst.
Application Number | 20170067239 15/355216 |
Document ID | / |
Family ID | 50680737 |
Filed Date | 2017-03-09 |
United States Patent
Application |
20170067239 |
Kind Code |
A1 |
Dorendorf; Bruce ; et
al. |
March 9, 2017 |
REMOTE CONTROL SYSTEM FOR CONTROLLING OPERATION OF A FAN
ASSEMBLY
Abstract
A remote control system for controlling operation of a fan
assembly is provided. The system includes a first sensor module
having a first housing, a first sensor, a first microprocessor, and
a first RF transmitter. The first microprocessor is programmed to
generate a first control signal to induce the first RF transmitter
to transmit a first RF signal in response to a sensor signal from
the first sensor. The first RF signal has a first address value and
a first command value. The remote control system further includes a
fan control module having a second housing, a second
microprocessor, an AC power plug, an AC/DC voltage converter, a
controllable switch, and an RF receiver. The RF receiver is
configured to receive the first RF signal.
Inventors: |
Dorendorf; Bruce; (Cape
Coral, FL) ; Parkhurst; Greg; (Brooklyn Park,
MN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Direct Success, LLC |
Cape Coral |
FL |
US |
|
|
Family ID: |
50680737 |
Appl. No.: |
15/355216 |
Filed: |
November 18, 2016 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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14162172 |
Jan 23, 2014 |
9506665 |
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15355216 |
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12787867 |
May 26, 2010 |
8640970 |
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14162172 |
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61181396 |
May 27, 2009 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F24F 11/0001 20130101;
Y02B 30/70 20130101; F24F 11/77 20180101; Y02B 30/746 20130101;
F24F 11/56 20180101; F24F 2110/30 20180101; E03D 9/04 20130101;
F24F 2007/001 20130101 |
International
Class: |
E03D 9/04 20060101
E03D009/04; F24F 11/00 20060101 F24F011/00 |
Claims
1. A remote control system for controlling operation of a fan
assembly, comprising: a first sensor module having a first housing,
a first sensor, a first microprocessor, and a first RF transmitter;
the first sensor, the first microprocessor and the first RF
transmitter being disposed within the first housing, the first
microprocessor being operably coupled to the first sensor and the
first RF transmitter; the first microprocessor being programmed to
generate a first control signal to induce the first RF transmitter
to transmit a first RF signal in response to a sensor signal from
the first sensor, the first RF signal having a first address value
and a first command value; a fan control module having a second
housing, a second microprocessor, an AC/DC voltage converter, a
controllable switch, and an RF receiver; the second microprocessor,
the AC/DC voltage converter, the controllable switch, and the RF
receiver being disposed within the second housing; the second
microprocessor being operably coupled to the AC/DC voltage
converter, the controllable switch, and the RF receiver; the second
housing being sized and shaped such that the second housing is at
least partially disposed within the fan assembly; the AC/DC voltage
converter configured to output a DC voltage in response to an AC
voltage, the DC voltage being received by the second microprocessor
and the RF receiver; the RF receiver configured to receive the
first RF signal; the second microprocessor being programmed to
compare the first address value to a first predetermined address
value; and the second microprocessor being further programmed to
generate a second control signal to induce the controllable switch
to transition to a closed operational position to route the AC
voltage to an AC outlet device if the first address value
corresponds to the first predetermined address value, and the first
command value corresponds to an activation command value; the AC
outlet device configured to be electrically removably coupled to
the fan assembly.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] The present application is a continuation of U.S. patent
application Ser. No. 14/162,172 filed on Jan. 23, 2014, the
contents of which are incorporated herein by reference thereto in
its entirety. U.S. patent application Ser. No. 14/162,172 is a
continuation-in-part of U.S. patent application Ser. No. 12/787,867
filed on May 26, 2010 (now U.S. Pat. No. 8,640,970 issued on Feb.
4, 2014), the contents of which are incorporated herein by
reference thereto in its entirety. U.S. patent application Ser. No.
12/787,867 claims the benefit of U.S. Provisional Patent
Application Ser. No. 61/181,396, filed on May 27, 2009, the
contents of which are incorporated herein by reference thereto in
its entirety.
BACKGROUND
[0002] A bathroom fan is typically controlled utilizing a wall
switch. However, when a person does not initially turn on the
bathroom fan when they start bathing or showering, a significant
amount of humidity may be undesirably present in the bathroom.
Further, when a person does not initially turn on the bathroom fan
and they utilize a toilet in the bathroom, a significant amount of
odor may undesirably be present in the bathroom.
[0003] Accordingly, the inventors herein have recognized a need for
an improved remote control system for controlling a fan assembly
that reduces and/or minimizes the above-mentioned deficiencies.
SUMMARY
[0004] A remote control system for controlling operation of a fan
assembly in accordance with an exemplary embodiment is provided.
The remote control system includes a first sensor module having a
first housing, a first sensor, a first microprocessor, and a first
RF transmitter. The first sensor, the first microprocessor and the
first RF transmitter are disposed within the first housing. The
first microprocessor is operably coupled to the first sensor and
the first RF transmitter. The first microprocessor is programmed to
generate a first control signal to induce the first RF transmitter
to transmit a first RF signal in response to a sensor signal from
the first sensor. The first RF signal has a first address value and
a first command value. The remote control system further includes a
fan control module having a second housing, a second
microprocessor, an AC power plug, an AC/DC voltage converter, a
controllable switch, and an RF receiver. The second microprocessor,
the AC/DC voltage converter, the controllable switch, and the RF
receiver are disposed within the second housing. The AC power plug
is coupled to the second housing. The second microprocessor is
operably coupled to the AC/DC voltage converter, the controllable
switch, and the RF receiver. The AC power plug is electrically
coupled to the AC/DC voltage converter and to the controllable
switch such that an AC voltage is routed from the AC power plug to
the AC/DC voltage converter and the controllable switch. The AC/DC
voltage converter is configured to output a DC voltage in response
to the AC voltage. The DC voltage is received by the second
microprocessor and the RF receiver. The RF receiver is configured
to receive the first RF signal. The second microprocessor is
programmed to compare the first address value to a first
predetermined address value. The second microprocessor is further
programmed to generate a second control signal to induce the
controllable switch to transition to a closed operational position
to route the AC voltage to an AC outlet device if the first address
value corresponds to the first predetermined address value, and the
first command value corresponds to an activation command value. The
AC outlet device configured to be electrically removably coupled to
the fan assembly.
[0005] A remote control system for controlling operation of a fan
motor in a fan assembly in accordance with another exemplary
embodiment is provided. The remote control system includes a first
sensor module having a first housing, a first sensor, a first
microprocessor, and a first RF transmitter. The first sensor, the
first microprocessor and the first RF transmitter are disposed
within the first housing. The first microprocessor is operably
coupled to the first sensor and the first RF transmitter. The first
microprocessor is programmed to generate a first control signal to
induce the first RF transmitter to transmit a first RF signal in
response to a sensor signal from the first sensor. The first RF
signal has a first address value and a first command value. The
remote control system further includes a fan control module that is
disposed in a housing of the fan assembly. The fan control module
has a second microprocessor, an AC/DC voltage converter, a
controllable switch, and an RF receiver. The second microprocessor
is operably coupled to the AC/DC voltage converter, the
controllable switch, and the RF receiver. The AC/DC voltage
converter and the controllable switch are configured to receive an
AC voltage. The AC/DC voltage converter is configured to output a
DC voltage in response to the AC voltage. The DC voltage is
received by the second microprocessor and the RF receiver. The RF
receiver is configured to receive the first RF signal. The second
microprocessor is programmed to compare the first address value to
a first predetermined address value. The second microprocessor is
further programmed to generate a second control signal to induce
the controllable switch to transition to a closed operational
position to route the AC voltage to the fan motor if the first
address value corresponds to the first predetermined address value,
and the first command value corresponds to an activation command
value.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] FIG. 1 is a schematic of a bathroom having an air quality
control system in accordance with an exemplary embodiment;
[0007] FIG. 2 is a block diagram of an air quality control system
in accordance with an exemplary embodiment;
[0008] FIG. 3 is a schematic of a fluid flow sensor utilized in the
air quality control system of FIG. 1;
[0009] FIG. 4 is a cross-sectional view of the fluid flow sensor of
FIG. 3;
[0010] FIG. 5 is a cross-sectional view of another fluid flow
sensor;
[0011] FIG. 6 is a cross-sectional view of still another fluid flow
sensor;
[0012] FIG. 7 is a schematic of a fan assembly utilized in the
bathroom of FIG. 1;
[0013] FIG. 8 is a schematic of a switch assembly utilized in the
bathroom of FIG. 1;
[0014] FIG. 9 is a side view of the switch assembly of FIG. 8;
[0015] FIG. 10 is a schematic of another bathroom that utilizes a
remote control system for controlling operation of a fan assembly
in accordance with another exemplary embodiment;
[0016] FIG. 11 is another schematic of the bathroom of FIG. 10;
[0017] FIG. 12 is a block diagram of a remote control system in
accordance with another exemplary embodiment that is utilized in
the bathroom of FIG. 10;
[0018] FIG. 13 is a block diagram of a toilet occupancy sensor
module utilized in the remote control system of FIG. 12;
[0019] FIG. 14 is a schematic of the toilet occupancy sensor module
of FIG. 13;
[0020] FIG. 15 is a block diagram of a shower water sensor module
utilized in the remote control system of FIG. 12;
[0021] FIG. 16 is a schematic of the shower water sensor module of
FIG. 15;
[0022] FIG. 17 is a block diagram of a humidity sensor module
utilized in the remote control system of FIG. 12;
[0023] FIG. 18 is a schematic of the humidity sensor module of FIG.
17;
[0024] FIG. 19 is a block diagram of a manual transmitter module
utilized in the remote control system of FIG. 12;
[0025] FIG. 20 is a schematic of the manual transmitter module of
FIG. 19;
[0026] FIG. 21 is a circuit schematic of a fan control module
utilized in the remote control system of FIG. 12;
[0027] FIG. 22 is a schematic of the fan control module of FIG.
21;
[0028] FIG. 23 is another schematic of the fan control module of
FIG. 21;
[0029] FIG. 24 is another schematic of the fan control module of
FIG. 21;
[0030] FIG. 25 is another schematic of the fan control module of
FIG. 21;
[0031] FIG. 26 is a schematic of a fan assembly and the fan control
module of FIG. 21;
[0032] FIG. 27 is another schematic of the fan assembly and the fan
control module of FIG. 21;
[0033] FIG. 28 is another schematic of the fan assembly and the fan
control module of FIG. 21;
[0034] FIGS. 29-31 are flowcharts of a method for controlling
operation of the toilet occupancy sensor module of FIG. 13;
[0035] FIGS. 32-34 are flowcharts of a method for controlling
operation of the shower water sensor module of FIG. 15;
[0036] FIGS. 35-37 are flowcharts of a method for controlling
operation of the humidity sensor module of FIG. 17;
[0037] FIGS. 38-39 are flowcharts of a method for controlling
operation of the manual transmitter module of FIG. 19; and
[0038] FIG. 40 is a flowchart of a method for controlling operation
of the fan control module of FIG. 21.
DETAILED DESCRIPTION
First Embodiment
[0039] Referring to FIG. 1, an exemplary embodiment of an air
quality control system 10 is shown. In this configuration, the
system 10 is incorporated with an air venting system of a bathroom
12. The system 10 includes a sensor assembly 14, a fan assembly 16
and a switch assembly 18. Optionally, the system further includes
one or more circuits 20, i.e. control circuits or otherwise, for
controlling or modifying signals. Other components are contemplated
as described herein or otherwise. In the configuration shown in
FIG. 1, the sensor assembly 14 is disposed proximate a pipe conduit
22 of a shower head 24 for monitoring fluid flow therethrough. The
sensor assembly 14 is in communication with the fan assembly 16 for
causing ventilation of humidity or otherwise from the bathroom
12.
[0040] Referring to the schematic diagram of the air quality
control system 10 shown in FIG. 2, the sensor assembly 14 includes
a fluid flow sensor 26 configured for monitoring fluid flow through
a conduit, such as pipe conduit 22 shown in FIG. 1. The sensor
assembly further includes a wireless transmitter 28 in
communication with the fluid flow sensor 26. The wireless
transmitter 28 is configured to generate a wireless signal
corresponding to measurements, or fluid flow presence, determined
by fluid flow sensor 26. Optionally, it is contemplated that an
analog to digital convertor 30 is provided for converting the
analog signals generated by the fluid flow sensor 26 to digital
signals for relay by wireless transmitter 28. However, it should be
appreciated that the wireless transmitter 28 may alternatively
generate analog signals, such as radio waves e.g., frequency
modulated signals (FM) or amplitude modulated signals (AM),
microwaves, infrared waves or otherwise. It should be appreciated
that the analog to digital convertor may be disposed with, or
communicatively between, any of the sensor assembly 14, fan
assembly 16 or switch assembly 18. Other potential wireless
communications systems useable with the present system include
ZigBee.RTM., Bluetooth.RTM., or otherwise.
[0041] The signal generated by the wireless transmitter 28 is
received by a wireless receiver 32 of the fan assembly 16 through a
first wireless connection 34 or a wireless receiver 36 of the
switch assembly 18 through a second or alternate wireless
connection 38, or both. However, it is contemplated that the signal
generated by the wireless transmitter 28 is eventually relayed in
some manner to a fan controller 40 of a fan 42 for controlling
ventilation of bathroom 12 or otherwise. To this extent, it is
possible that the wireless receiver 36 is disposed proximate to a
manual switch 44 configured for controlling the fan 42 through a
wired connection 46, though communication may advantageously be
achieved through a wireless communication as well. Alternatively,
it is further contemplated that the circuit 20 may include a
wireless receiver 48 for forming a third or alternate wireless
connection 50. In this configuration, the circuit 20 is in
communication with the fan assembly 16 and switch assembly 18
through a wired or wireless connection 52.
[0042] Optionally, it is contemplated that the air quality control
unit 10 may include one or more remote control units 54 useable by
an individual to control the fan 42 for humidity removal, odor
removal or otherwise from the particular room or area. In this
configuration, it is contemplated that the remote control unit may
be in communication with the wireless receiver 32 of the fan
assembly 16 or the wireless receiver 34 of the switch assembly 18,
or both. Accordingly, a user may activate the fan 42 at any time,
and/or at any location, through the remote control unit 54.
[0043] In another optional configuration, it is contemplated that
sensor assembly 14, fan assembly 16 and/or switch assembly 18
includes a manual activation device 86, such as a button switch or
otherwise, for causing activation of the fan assembly. In one
configuration, referring to FIG. 4, the manual activation device 86
is in communication with the wireless transmitter 28 of the sensor
assembly 14 for transmitting a signal based upon the manual
activation device 86. In this configuration, should a user desire
activation of the fan assembly 16 during times where the fan
assembly 16 would not normally operate, due to low humidity levels
or otherwise, the user is provided the opportunity to manually
activate the fan assembly 16.
[0044] The fluid flow sensor 26 may comprise any sensor configured
to determine the presence of fluid flow, particularly through a
conduit. In one configuration, as described below, that the fluid
flow sensor 26 may be configured to ascertain a temperature of
fluid flowing through a conduit for activating the fan assembly 16.
Advantageously, should the temperature of the fluid be capable of
generating steam or humidity the fan assembly 16 will be activated.
In another configuration, also described below, the fluid flow
sensor 26 may comprise a magnetic sensor configured to sense the
generation of a magnetic field based upon movement of naturally
occurring minerals within a fluid flow. In yet another
configuration, the fluid flow sensor 26 may comprise a vibration
sensor configured to monitor whether fluid flow is occurring
through a conduit, based upon known vibration values typically
generated by fluid flow. In still another configuration, the fluid
flow sensor 26 may comprise a pressure sensor configured to
determine fluid flow through the conduit based upon increased fluid
pressure generated by the fluid flow. In another configuration, the
fluid flow sensor 26 may comprise a current sensor configured to
sense an accumulation of static electricity over the conduit due to
fluid flow therein. In another configuration, the sensor comprises
a circuit, or at least a portion thereof, that is completed by the
fluid flowing through the conduit. The fluid flow sensor 26
generates a signal, via a suitable power source, indicative of
fluid flow that is received by transmitter 28.
[0045] In any of the above configurations, in one exemplary
embodiment, it is contemplated that the sensor assembly 14,
including the transmitter 28, may be powered through a battery or
other suitable power means. In another exemplary embodiment, power
is obtained through a generation of current by movement of fluid
through the conduit. In yet another exemplary embodiment, power is
obtained through a capacitor wherein potential energy stored by the
capacitor is release upon fluid flow through a conduit. It is
possible that a current or signals generated by the sensors are
suitable in strength for powering the transmitter without or in
conjunction with an additional poser source. It should be
appreciated that other power sources are available. However, in a
preferred configuration it is contemplated that the power source
for generating signals for the sensor or through the wireless
transmitter 28 includes a low voltage and/or current that poses no
risk to persons, even in the presence of conducting fluids, such as
water. It should be appreciated that other low voltage and/or
current sensor configurations are possible.
[0046] Optionally, the sensor assembly 14 further includes a
temperature indicator 84 for providing an indication of the
temperature of the fluid flow through the pipe conduit 22. The
temperature indicator 84 may be located on or with the sensor
assembly 14, located on the pipe conduit 22 or otherwise.
Accordingly, the temperature indicator 84 may be in communication
with the fluid flow sensor 26 or function independently. In one
configuration, the temperature indicator 84 provides a digital
readout of the temperature of fluid flow through the pipe conduit
22. In another configuration the temperature indicator 84 provides
a color indicator of the temperature. Other configurations are
possible.
[0047] In one configuration, it is contemplated that multiple
sensors may be used with the air quality control system 10. This
may include one or more of the fluid flow sensors 26 described
herein and optionally, one or more remote control devices and/or
one or more additional sensors. Such additional sensors may
comprise humidity sensors, occupancy sensors, odor sensors,
temperature sensors or otherwise. The multiple sensors may be
located in one or more locations within a specified region. For
example, with reference to the bathroom configuration shown in FIG.
1, sensors may be disposed with pipe conduits, shower heads, sink
and/or bathtub faucets, toilets, walls, ceilings, floors, mirrors,
shower curtains or curtain rods, window, blinds or otherwise. In a
multiple sensor configuration, it is possible that one or more, or
even all, of the sensors are in wired and/or wireless communication
with the fan assembly 16. Accordingly, the multiple sensors may
communicate over a common frequency and/or control circuit.
[0048] The fluid flow sensor 26 may comprise a stand along
component configured for attachment to a conduit or may comprise a
portion of the conduit itself. Accordingly, a user may purchase a
fluid flow sensor 26 that may be attached to existing conduit
components, e.g., pipe member, shower head, faucet or otherwise, or
may replace an existing conduit component, e.g., pipe member,
shower head, faucet or otherwise. To this end, in one configuration
the sensor may be integrally formed with the conduit or may be
separately formed for attachment to the conduit. As such, the fluid
flow sensor 26 may be in direct or indirect contact with the fluid
flowing through a conduit. Further, in one exemplary embodiment,
the sensor is in-line with the fluid flowing through the conduit,
wherein fluid passes on one or more sides of the sensor or even
substantially about the entirety of the sensor.
[0049] In one sensor configuration, referring to FIGS. 3 and 4, the
sensor assembly 14 is configured for attachment to the pipe conduit
22 of the shower head 24. The sensor assembly 14 is removably
attached to the pipe conduit 22 through a locking mechanism 54. The
locking mechanism 54 comprises a snap-fit configuration; however,
it is also contemplated that adhesives (such as thermally
conductive adhesive or otherwise) and/or fasteners may be
alternatively or used in conjunction with the snap-fit
configuration. In the particular configuration shown, the sensor
assembly 14 includes a shell 58 having a first half 60 attached to
a second half 62 through a hinge 64. The first and second half 60,
62 are configured to envelope the pipe conduit 22 and maintain
position of the first and second half 60, 62 through the locking
mechanism 56.
[0050] With reference to FIG. 4, the first half 60 of the sensor
assembly 14 includes the fluid flow sensor 26 for detecting fluid
flow through the pipe conduit 22. The fluid flow sensor 26 is
located proximate the pipe conduit 22 and more particularly in
thermal communication with the pipe conduit 22. Accordingly,
changes in temperature of the pipe conduit 22, as a result of fluid
flow therethrough, can be measured by the fluid flow sensor 26. In
this configuration, the fluid flow sensor 22 may comprise a
thermistor for monitoring change in resistance through the fluid
flow sensor 26 to determine the temperature of the fluid flowing
through the pipe conduit 22. The fluid flow sensor may
alternatively comprise a stress sensor that monitors expansion of
the sensor, via expansion of the pipe conduit 22, as a result of
heated fluid, to determine the temperature of the fluid flowing
through the pipe conduit. The fluid flow sensor is in communication
with the wireless transmitter 28 for transmitting the measurement,
or activation signal, from the fluid flow sensor 26 to the fan
assembly 16. The shell is further configured for receiving a
battery 63 for providing power to the fluid flow sensor 26 and/or
wireless transmitter 28. However, as previously described, other
power sources are contemplated as described herein.
[0051] Alternatively, in another configuration, the fluid flow
sensor 26 comprises a magnetic flux sensor and is placed in
magnetic communication with the fluid flowing through the pipe
conduit 22 for monitoring magnetic flux generated by the fluid flow
through the pipe conduit. In this configuration, the fluid flow
sensor 26 is able to determine the presence of fluid flow through
the pipe conduit 22 as a result of the flow of magnetic elements
naturally flowing with the water through the pipe conduit, such as
iron or otherwise.
[0052] In another sensor configuration, referring to FIG. 5, the
sensor assembly 14 is configured for threaded attachment to a
conduit, e.g. one or more pipe conduits 22 and/or shower heads 24.
As with the embodiment shown in FIGS. 3 and 4, this configuration
provides easy installment of the sensor assembly 14 to an existing
pluming system of a house or otherwise. In the particular
configuration shown, the sensor assembly includes a first end 76
having a female threaded component configured for engagement with a
pipe conduit 22 extending from a shower head and a second end 78
having a male threaded component configured for engagement with a
fluid source pipe conduit 80. The sensor includes a fluid flow
sensor 26 that is in communication with a wireless transmitter 28
configured for generation of a wireless signal based upon signals
generated by the fluid flow sensor 26. Optionally, the fluid flow
sensor 26, transmitter or both may be powered by battery 65 or
otherwise. In this configuration, the fluid flow sensor 26 is in
direct contact with fluid flowing through pipe conduit 22.
[0053] In still another sensor configuration, referring to FIG. 6,
the sensor assembly 14 is integrally formed with an additional pipe
member 82, which may be used to replace all, or a portion of, pipe
conduit 22, fluid source pipe conduit 80 or otherwise. The sensor
assembly 14 includes fluid flow sensor 26 in communication with
wireless transmitter 28, wherein either one of the fluid flow
sensor, wireless transmitter or both may be powered by battery 65
or otherwise. As with the sensor assembly configuration shown in
FIG. 5, the fluid flow sensor 26 is in direct contact with fluid
flowing through pipe conduit 22.
[0054] Referring to FIG. 7, the exemplary fan assembly 16 of the
air quality control system 10 is shown. The fan assembly 16
includes wireless receiver 32 configured for receiving signals from
the wireless transmitter 28 of the fluid flow sensor 26. The
wireless receiver 32 is in communications with controller 40 (see
FIG. 2) that controls operation of a motor 66 for rotating fan
blades 68. The fan assembly 16 is housed within a vent 70 for
drawing air from the bathroom through the vent and to a location
outside of the bathroom, e.g., house or otherwise. The fan assembly
is powered through a wire 72 that may be connected to the switch
assembly 18, as described herein. Accordingly, the controller 40
may be activated by the wireless transmitter 28 directly or
indirectly through the switch assembly 18 or independent of the
switch assembly 18. Further the controller 40 may be activated
through a manual switch, such as switch 44 of the switch assembly
18.
[0055] Referring to FIGS. 8 and 9, several views of the exemplary
switch assembly 18 of the air quality control system 10 are shown.
The switch assembly 18 includes wireless receiver 36 for receiving
signals from the sensor assembly 14. The switch assembly 18
includes manual switch 44 for manually activating the fan assembly
14. The wireless receiver 36 and the manual switch 44 are connected
to the fan assembly 18, via wire 72, for controlling activation
thereof. Accordingly, the switch assembly 18 is further connected
to a power supply (not shown) through a power supply wire 74. It
should be appreciated that the switch assembly 18 may further
include a circuit 76 for controlling transmission of signals, or
power, from the manual switch 44 and/or wireless receiver 36 to the
fan controller 40.
[0056] In one configuration, referring to FIG. 2, it is
contemplated that the fan assembly 16 is controllable through one
or more remote control units 54, which may or may not be in
conjunction with the sensor assembly 14. This provides the ability
of a user to control activation of the fan assembly separate from
the sensor assembly 14. Activation of the fan assembly may be based
upon humidity levels, odor levels or other contaminate or
non-contaminant occurrence within the bathroom 12, or other room or
area. The remote control unit 54 may be in direct communication
with the fan assembly 16 or indirect communication with the fan
assembly, such as through switch assembly 18 or otherwise.
[0057] The air quality control system 10 automatically detects the
presence or anticipated accumulation of humidity within a bathroom
12, or otherwise, and activates the fan assembly 16 until
sufficient removal of the humidity is achieved and/or for a
predetermined time period. In one method of operation, referring to
FIG. 1, a user directs water through a pipe conduit 22 of a shower
head 24. The sensor assembly determines the presence of water flow
through the pipe conduit 22, and/or temperature of the water
flowing through the pipe conduit 22, to further determine whether
activation of a fan assembly is necessary for reducing or maintain
humidity levels within the bathroom 12. Should reduction of
humidity within the bathroom 12 be desired, a wireless signal is
sent to the fan assembly 16 directly, or through switch assembly
18, to cause activation of the fan assembly. When flow of water
through the pipe conduit 22 is discontinued, or the temperature of
water flowing through the pipe conduit 22 is at a level where
humidity accumulation is not likely, or even the humidity or
contaminant levels have decreased to acceptable levels, another
signal may be transmitted directly or indirectly to the fan
assembly 16 to deactivate the fan assembly immediately or after a
predetermined time period. Alternatively, as described above, the
fan may simply deactivate after a predetermined time period.
[0058] It should be appreciated that the fan assembly 16 may
comprise a new or altered fan assembly. Similarly, the switch
assembly 18 may comprise a new or altered switch assembly. To this
end, it is contemplated that the components of the sensor assembly
14 may be sold as a kit along with components of the fan assembly
16 and/or switch assembly 18 for providing an individual with a
simplified method of forming an air quality control system 10.
[0059] It should be appreciated that while the air quality control
system 10 is shown incorporated with a venting system of a
bathroom, it should be appreciate that the system may be used in
other rooms or environment including open areas, closed areas,
multi-room areas or otherwise. Similarly, the fluid flow sensor 26
may be used on other conduits, including gas or liquid, to
determine characteristics (i.e. temperatures, composition or
otherwise) of the fluid flow. Specific examples of other conduits
include water or gas lines, for houses or other building structure,
or otherwise.
Second Embodiment
[0060] Referring to FIGS. 10-12, a bathroom 200 includes a shower
head 210, a tub 212, a toilet 214, a fan switch 216, a fan assembly
220, and a remote control system 240 in accordance with an
exemplary embodiment. An advantage of the remote control system 240
is that the system 240 can remotely control operation of the fan
assembly 220, based on a humidity level in the bathroom 200, a
sensed heat energy from water being expelled from the shower head
210, or sensed heat energy from a person disposed proximate to the
toilet 214.
[0061] The shower head 210 is disposed on a wall of the bathroom
200 and is configured to expel heated water into the tub 212. The
toilet 214 is disposed on a floor in the bathroom 200 and is
configured to be utilized by a person sitting on the toilet
214.
[0062] The fan switch 216 is mounted on a wall of the bathroom 200
and is configured to provide an AC voltage to a fan control module
346 (shown in FIG. 12), when the fan switch 216 has a closed
operational position.
[0063] Fan Assembly
[0064] Referring to FIGS. 10 and 26-28, the fan assembly 220 is
provided to expel air from an interior of the bathroom 200 to the
ambient atmosphere outside of the bathroom 200. The fan assembly
220 is coupled to a ceiling of the bathroom 200. The fan assembly
220 includes a housing 270, an outlet pipe 274, a partition wall
278, fan blades 282, a vented cover plate 284 (shown in FIG. 10),
an electric motor 286, an AC power plug 290, an AC electrical wire
294, and an AC socket 298.
[0065] The housing 270 is configured to hold the partition wall
278, the fan blades 282, the electric motor 286, the AC power plug
290, the AC electric wire 294, and the AC socket 298 therein. The
housing 270 includes side walls 301, 302, 303, 304 coupled to one
another that define an interior region 305. The outlet pipe 274 is
coupled to the side wall 304 and fluidly communicates with an
aperture extending through the side wall 304. The partition wall
278 is disposed within the interior region 305 and is coupled to
the side walls 301-304 such that the partition wall 278 partitions
the interior region into first and second interior spaces. The
partition wall 278 includes apertures 306, 308, 310 (shown in FIG.
28) extending therethrough. The partition walls 301-304 define an
open end 317 and open end 318. The open end 318 is configured to
have the vented cover plate 284 (shown in FIG. 10) coupled thereto
that communicates with an interior of the bathroom 200. The open
end 317 is configured to be disposed above a ceiling of the
bathroom 200.
[0066] The fan blades 282 are operably coupled to the electric
motor 286. The fan blades 282 are disposed in the first interior
space and are operably coupled to a rotor of the electric motor
286.
[0067] The electric motor 286 is coupled to the partition wall 278
in the second interior space. The AC electrical wire 294 has first
and second electrical conductors (e.g., wires) therein that are
covered by a plastic sheath and are electrically isolated from one
another in the sheath. The first and second electrical conductors
of the AC electrical wire 294 are electrically coupled to the
blades 312, 314, respectively, and are further electrically coupled
to the electric motor 286. The first and second electrical
conductors of the AC electrical wire 294 transmits an AC voltage
from the AC power plug 290 to the electric motor 286. The AC power
plug 290 includes blades 312, 314 for receiving an AC voltage
therebetween from the fan control module 346.
[0068] Referring to FIGS. 10 and 26, the AC socket 298 (shown in
FIG. 26) is coupled to the partition wall 278. The fan switch 216
(shown in FIG. 10) is electrically coupled through a pair of
electrical conductors (not shown) to the AC socket 298. The fan
control module 346 is electrically coupled to the AC socket 298
utilizing the AC power plug 788 which is removably electrically
coupled to the AC socket 298. When the fan switch 216 has a closed
operational position, the switch 216 supplies an AC voltage from an
external AC voltage source to the AC socket 298, which energizes
the fan control module 346 via the AC power plug 788. During normal
operation of the fan control module 346 described in the flowcharts
herein, the fan switch 216 has the closed operational position such
that AC socket 298 receives the AC voltage and energizes the fan
control module 346 via the AC power plug 788.
[0069] When the electric motor 286 is activated by the remote
control system 240, the fan blades 282 urge air from the interior
of the bathroom 200 through the vented cover plate 284, the
apertures 306, 308, 310, and past the fan blades 282 and through
the outlet pipe 274 into a region above the ceiling of the bathroom
200.
[0070] Referring to FIGS. 10-12, the remote control system 240 is
provided to control operation of the fan assembly 220. The remote
control system 240 includes a toilet occupancy sensor module 330, a
shower water sensor module 334, a humidity sensor module 338, a
manual transmitter module 342, and a fan control module 346.
[0071] Toilet Occupancy Sensor Module
[0072] Referring to FIGS. 10 and 12-14, the toilet occupancy sensor
module 330 is provided to detect when a person is disposed on the
toilet 214 and to transmit an RF signal to the fan control module
346 to activate the electric motor 286 when the person is disposed
on the toilet 214. The toilet occupancy sensor module 330 is
further provided to detect when the person is no longer disposed on
the toilet 214 to transmit an RF signal to the fan control module
346 to deactivate the electric motor 286 when the person is no
longer disposed on the toilet 214. The toilet occupancy sensor
module 330 includes a housing 380, a microprocessor 384, a switch
388, a battery 392, an address switch assembly 396, an RF
transmitter 400, an antenna 404, and an infrared sensor 408.
[0073] The microprocessor 384 is provided to control operation of
the toilet occupancy sensor module 330. The microprocessor 384 is
operably and electrically coupled to the battery 392, the RF
transmitter 400, the infrared sensor 408, the switch 388, and the
address switch assembly 396. The microprocessor 384 includes an
internal memory 385 that is configured to store executable software
instructions and data utilized by the toilet occupancy sensor
module 330.
[0074] The battery 392 is electrically coupled to the
microprocessor 384, the RF transmitter 400, and the infrared sensor
408. The battery 392 provides an operational voltage to the
microprocessor 384, the RF transmitter 400, and the infrared sensor
408.
[0075] The switch 388 is electrically coupled to and between the
microprocessor 384 and electrical ground. When the switch 388 is
moved to a closed operational position, the microprocessor 384
generates a control signal to induce the RF transmitter 400 to
transmit an RF signal having an activation command for turning on
the electric motor 286 in the fan assembly 220. Alternately, when
the switch 388 is moved to an open operational position, the
microprocessor 384 generates a control signal to induce the RF
transmitter 400 to transmit an RF signal having a deactivation
command for turning off the electric motor 286 in the fan assembly
220. A portion of the switch 388 extends outwardly from an exterior
of the housing 380 and can be actuated by a person holding the
housing 380.
[0076] The address switch assembly 396 is electrically coupled to
the microprocessor 384. The address switch assembly 396 includes
address switches 410, 412, 414, 416, 418, 420, 422, 424 which
define an 8-bit binary address value which identifies the toilet
occupancy sensor module 330 to the fan control module 346. In an
exemplary embodiment, the address value of "11111111" is associated
with the toilet occupancy sensor module 330.
[0077] The RF transmitter 400 is operably coupled to the antenna
404. The RF transmitter 400 is provided to transmit RF signals to
the fan control module 346 such that the fan control module 346 can
either activate or deactivate the electric motor 286 in the fan
assembly 220. The microprocessor 384 is programmed to generate a
control signal to induce the RF transmitter 400 to transmit an RF
signal having a binary address value and a binary command value. In
an exemplary embodiment, the binary address value is 8-bit binary
number determined by the address switches 410-424. Further, the
binary command value is 8-bit binary number comprising either an
activation command value (e.g., 000000011) or a deactivation
command value (e.g., 000000001). The activation command value is
utilized by the fan control module 346 for activating the electric
motor 286. The deactivation command value is utilized by the fan
control module 346 for deactivating the electric motor 286.
[0078] In an exemplary embodiment, the RF transmitter 400 transmits
RF signals in a high frequency range (e.g., 3 Mhz-30 MHz). Of
course, in an alternative embodiment, the RF transmitter 400 could
transmit RF signals in another frequency range. In an exemplary
embodiment, the RF transmitter 400 modulates each RF signal to
include data (e.g., an address value and a command value) utilizing
frequency shift keying (FSK) modulation technique. In an
alternative embodiment, the RF transmitter 400 can modulate each RF
signal to include data utilizing any other known modulation
technique such as amplitude modulation (AM), frequency modulation
(FM), and amplitude shift keying (ASK), or the like.
[0079] The infrared sensor 408 is electrically coupled to the
microprocessor 384. The infrared sensor 408 is configured to
generate a sensor signal having an amplitude based on an amount of
sensed human body heat energy. The microprocessor 384 is programmed
to measure the amplitude of the sensor signal from the infrared
sensor 408. If the amplitude of the sensor signal is greater than
or equal to a predetermined amplitude, the microprocessor 384
determines that a person is disposed proximate to the infrared
sensor 408. Alternately, if the amplitude of the sensor signal is
less than the predetermined amplitude, the microprocessor 384
determines that a person is not disposed proximate to the infrared
sensor 408.
[0080] Referring to FIGS. 13, 14 and 29-31, a method for
controlling operation of the toilet occupancy sensor module 330
will now be described.
[0081] At step 1000, the microprocessor 384 makes a determination
as to whether the manually-operated switch 388 in the toilet
occupancy sensor module 330 is depressed. If the value of step 1000
equals "yes", the method advances to step 1002. Otherwise, the
method advances to step 1008.
[0082] At step 1002, the microprocessor 384 makes a determination
as to whether the manually-operated switch 388 in the toilet
occupancy sensor module 330 has a closed operational position. If
the value of step 1002 equals "yes", the method advances to step
1004. Otherwise, the method advances to step 1006.
[0083] At step 1004, the microprocessor 384 generates a first
control signal to induce the first RF transmitter 400 to transmit a
first RF signal having (i) an address value associated with the
toilet occupancy sensor module 330 and (ii) a command value
corresponding to an activation command value. After step 1004, the
method advances to step 1022.
[0084] Referring again to step 1002, if the value of step 1002
equals "no", the method advances to step 1006. At step 1006, the
microprocessor 384 in the toilet occupancy sensor module 330
generates a second control signal to induce the first RF
transmitter 400 to transmit a second RF signal having (i) the
address value associated with the toilet occupancy sensor module
330 and (ii) a command value corresponding to a deactivation
command value. After step 1006, the method advances to step
1022.
[0085] Referring again to step 1000, if the value of step 1000
equals "no", the method advances to step 1008. At step 1008, the
microprocessor 384 makes a determination as to whether the infrared
sensor 408 in the toilet occupancy sensor module 330 is generating
a sensor signal. The sensor signal has an amplitude based on an
amount of sensed heat energy. If the value of step 1008 equals
"yes", the method advances to step 1010. Otherwise, the method
advances to step 1022.
[0086] At step 1010, the microprocessor 384 makes a determination
as to whether the average amplitude of the sensor signal over a
predetermined time interval is greater than a predetermined
amplitude, indicating a human being is proximate to the toilet
occupancy sensor module 330. If the value of step 1010 equals
"yes", the method advances to step 1014. Otherwise, the method
advances to step 1022.
[0087] At step 1014, the microprocessor 384 makes a determination
as to whether the first RF transmitter 400 has transmitted an RF
signal with an activation command value during a predetermined time
interval. If the value of step 1014 equals "yes", the method
advances to step 1016. Otherwise, the method advances to step
1018.
[0088] At step 1016, the microprocessor 384 generates a third
control signal to induce the first RF transmitter 400 to transmit a
third RF signal having (i) an address value associated with the
toilet occupancy sensor module 330 and (ii) a command value
corresponding to the activation command value. After step 1016, the
method advances to step 1022.
[0089] Referring again to step 1014, if the value of step 1014
equals "no", the method advances to step 1018. At step 1018, the
microprocessor 384 makes a determination as to whether the first RF
transmitter 400 has transmitted an RF signal with a deactivation
command value during the predetermined time interval. If the value
of step 1018 equals "yes", the method advances to step 1020.
Otherwise, the method advances to step 1022.
[0090] At step 1020, the microprocessor 384 generates a fourth
control signal to induce the first RF transmitter 400 to transmit a
fourth RF signal having (i) an address value associated with the
toilet occupancy sensor module 330 and (ii) a command value
corresponding to the deactivation command value. After step 1020,
the method advances to step 1022.
[0091] At step 1022, the microprocessor 384 executes a low power
sleep mode algorithm. After step 1022, the method returns to step
1000.
[0092] Referring to FIGS. 13 and 31, the low-power sleep mode
algorithm of step 1022 will now be explained.
[0093] At step 1030, the microprocessor 384 resets a wake-up timer.
After step 1030, the method advances to step 1032.
[0094] At step 1032, the microprocessor 384 enters a low power
sleep mode. After step 1032, the method advances step 1034.
[0095] At step 1034, the microprocessor 384 makes a determination
as to whether the wake-up timer in the toilet occupancy sensor
module 330 has a timer count greater than a threshold timer count.
If the value of step 1034 equals "yes", the method advances to step
1036. Otherwise, the method returns to step 1034.
[0096] At step 1036, the microprocessor 384 enters a wake-up mode.
After step 1036, the method returns to step 1000 (shown in FIG.
29).
[0097] Shower Water Sensor Module
[0098] Referring to FIGS. 10, 12, 15 and 16, the shower water
sensor module 334 is provided to detect when the shower head 210 is
expelling heated water based on detected heat energy, and to
transmit an RF signal to the fan control module 346 to activate the
electric motor 286 when the shower head 210 is expelling heated
water. The shower water sensor module 334 is further provided to
detect when the shower head 210 is no longer expelling heated water
and to transmit an RF signal to the fan control module 346 to
deactivate electric motor 286 when the shower head 210 and is no
longer expelling heated water. The shower water sensor module 334
includes a housing 480, a microprocessor 484, a switch 488, a
battery 492, an address switch assembly 496, an RF transmitter 500,
an antenna 504, and an infrared sensor 508.
[0099] The microprocessor 484 is provided to control operation of
the shower water sensor module 334. The microprocessor 484 is
operably and electrically coupled to the battery 492, the RF
transmitter 500, the infrared sensor 508, the switch 488, and the
address switch assembly 496. The microprocessor 484 includes an
internal memory 485 that is configured to store executable software
instructions and data utilized by the shower water sensor module
334.
[0100] The battery 492 is electrically coupled to the
microprocessor 484, the RF transmitter 500, and the infrared sensor
508. The battery 492 provides an operational voltage to the
microprocessor 484, the RF transmitter 500, and the infrared sensor
508.
[0101] The switch 488 is electrically coupled to and between the
microprocessor 484 and electrical ground. When the switch 488 is
moved to a closed operational position, the microprocessor 484
generates a control signal to induce the RF transmitter 500 to
transmit an RF signal having an activation command for turning on
the electric motor 286 in the fan assembly 220. Alternately, when
the switch 488 is moved to an open operational position, the
microprocessor 484 generates a control signal to induce the RF
transmitter 500 to transmit an RF signal having a deactivation
command for turning off the electric motor 286 in the fan assembly
220. A portion of the switch 488 extends outwardly from an exterior
of the housing 480 and can be actuated by a person holding the
housing 480.
[0102] The address switch assembly 496 is electrically coupled to
the microprocessor 484. The address switch assembly 496 includes
address switches 510, 512, 514, 516, 518, 520, 522, 524 which
define an 8-bit binary address value which identifies the shower
water sensor module 334 to the fan control module 346. In an
exemplary embodiment, the address value of "11111110" is associated
with the shower water sensor module 334.
[0103] The RF transmitter 500 is operably coupled to the antenna
504. The RF transmitter 500 is provided to transmit RF signals to
the fan control module 346 such that the fan control module 346 can
either activate or deactivate the electric motor 286 in the fan
assembly 220. The microprocessor 484 is programmed to generate a
control signal to induce the RF transmitter 500 to transmit an RF
signal having a binary address value and a binary command value. In
an exemplary embodiment, the binary address value is 8-bit binary
number determined by the address switches 510-524. Further, the
binary command value is 8-bit binary number comprising either an
activation command value (e.g., 000000011) or a deactivation
command value (e.g., 000000001). The activation command value is
utilized by the fan control module 346 for activating the electric
motor 286. The deactivation command value is utilized by the fan
control module 346 for deactivating the electric motor 286.
[0104] In an exemplary embodiment, the RF transmitter 500 transmits
RF signals in a high frequency range (e.g., 3 Mhz-30 MHz). Of
course, in an alternative embodiment, the RF transmitter 500 could
transmit RF signals in another frequency range. In an exemplary
embodiment, the RF transmitter 500 modulates each RF signal to
include data (e.g., an address value and a command value) utilizing
frequency shift keying (FSK) modulation technique. In an
alternative embodiment, the RF transmitter 500 can modulate each RF
signal to include data utilizing any other known modulation
technique such as amplitude modulation (AM), frequency modulation
(FM), and amplitude shift keying (ASK), or the like.
[0105] The infrared sensor 508 is electrically coupled to the
microprocessor 484. The infrared sensor 508 is configured to
generate a sensor signal having an amplitude based on an amount of
sensed water heat energy. The microprocessor 484 is programmed to
measure the amplitude of the sensor signal from the infrared sensor
508. If the amplitude of the sensor signal is greater than or equal
to a predetermined amplitude, the microprocessor 484 determines
that the shower head 210 (shown in FIG. 10) is dispensing heated
water proximate to the infrared sensor 508. Alternately, if the
amplitude of the sensor signal is less than a predetermined
amplitude, the microprocessor 484 determines that the shower head
210 is not dispensing heated water proximate to the infrared sensor
508.
[0106] Referring to FIGS. 15, 16 and 32-34, a method for
controlling operation of the shower water sensor module 334 will
now be described.
[0107] At step 1070, the microprocessor 484 makes a determination
as to whether the manually-operated switch 488 in the shower water
sensor module 334 is depressed. If the value step 1070 equals
"yes", the method advances to step 1072. Otherwise, the method
advances to step 1078.
[0108] At step 1072, the microprocessor 484 makes a determination
as to whether the manually-operated switch 488 in the shower water
sensor module 334 has a closed operational position. If the value
of step 1072 equals "yes", the method advances to step 1074.
Otherwise, the method advances to step 1076.
[0109] At step 1074, the microprocessor 484 generates a first
control signal to induce the first RF transmitter 500 to transmit a
first RF signal having (i) an address value associated with the
shower water sensor module 334 and (ii) a command value
corresponding to an activation command value. After step 1074, the
method advances to step 1092.
[0110] Referring again to step 1072, if the value of step 1072
equals "no", the method advances to step 1076. At step 1076, the
microprocessor 484 generates a second control signal to induce the
first RF transmitter 500 to transmit a second RF signal having (i)
the address value associated with the shower water sensor module
334 and (ii) a command value corresponding to a deactivation
command value. After step 1076, the method advances to step
1092.
[0111] Referring again to step 1070, if the value step 1070 equals
"no", the method advances to step 1078. At step 1078, the
microprocessor 484 makes a determination as to whether the infrared
sensor 508 in the shower water sensor module 334 is generating a
sensor signal. The sensor signal has an amplitude based on an
amount of sensed water heat energy. If the value of step 1078
equals "yes", the method advances to step 1080. Otherwise, the
method advances to step 1092.
[0112] At step 1080, the microprocessor 484 makes a determination
as to whether the average amplitude of the sensor signal over a
predetermined time interval is greater than a predetermined
amplitude, indicating hot water is being dispensed from the
showerhead 210 in a shower stall. If the value of step 1080 equals
"yes", the method advances to step 1084. Otherwise, the method
advances to step 1092.
[0113] At step 1084, the microprocessor 484 makes a determination
as to whether the first RF transmitter 500 transmitted an RF signal
with an activation command value during a predetermined time
interval. If the value of step 1084 equals "yes", the method
advances to step 1086. Otherwise, the method advances to step
1088.
[0114] At step 1086, the microprocessor 484 generates a third
control signal to induce the first RF transmitter 500 to transmit a
third RF signal having (i) an address value associated with the
shower water sensor module 334 and (ii) a command value
corresponding to the activation command value. After step 1086, the
method advances to step 1092.
[0115] Referring again to step 1084, if the value of step 1084
equals "no", the method advances to step 1088. At step 1088, the
microprocessor 484 makes a determination as to whether the first RF
transmitter 500 has transmitted an RF signal with a deactivation
command value during the predetermined time interval. If the value
of step 1088 equals "yes", the method advances to step 1090.
Otherwise, the method advances to step 1092.
[0116] At step 1090, the microprocessor 484 generates a fourth
control signal to induce the first RF transmitter 500 to transmit a
fourth RF signal having (i) an address value associated with the
shower water sensor module 334 and (ii) a command value
corresponding to the deactivation command value. After step 1090,
the method advances to step 1092.
[0117] At step 1092, the microprocessor 484 executes a low power
sleep mode algorithm. After step 1092, the method returns to step
1070.
[0118] Referring to FIGS. 15 and 34, the low-power sleep mode
algorithm of step 1092 will now be explained.
[0119] At step 1100, the microprocessor 484 resets a wake-up timer.
After step 1100, the method advances to step 1102.
[0120] At step 1102, the microprocessor 484 enters a low power
sleep mode. After step 1102, the method advances to step 1104.
[0121] At step 1104, the microprocessor 484 makes a determination
as to whether the wake-up timer in shower water sensor module 334
has a timer count greater than a threshold timer count. If the
value of step 1104 equals "yes", the method advances to step 1106.
Otherwise, the method returns to step 1104.
[0122] At step 1106, the microprocessor 484 enters a wake-up mode.
After step 1106, the method returns to step 1070 (shown in FIG.
32).
[0123] Humidity Sensor Module
[0124] Referring to FIGS. 10, 12, 17 and 18, the humidity sensor
module 338 is provided to detect a humidity level in the bathroom
200 and to transmit an RF signal to the fan control module 346 to
activate the electric motor 286 when a sensor signal indicative of
the humidity level has an amplitude greater than or equal to a
predetermined amplitude. The humidity sensor module 338 is further
provided to transmit an RF signal to the fan control module 346 to
deactivate the electric motor 286 when the sensor signal indicative
of the humidity level has an amplitude less than the predetermined
amplitude. The humidity sensor module 338 includes a housing 580, a
microprocessor 584, a switch 588, a battery 592, an address switch
assembly 596, an RF transmitter 600, an antenna 604, and a humidity
sensor 608.
[0125] The microprocessor 584 is provided to control operation of
the humidity sensor module 338. The microprocessor 584 is operably
and electrically coupled to the battery 592, the RF transmitter
600, the humidity sensor 608, the switch 588, and the address
switch assembly 596. The microprocessor 584 includes an internal
memory 585 that is configured to store executable software
instructions and data utilized by the humidity sensor module
338.
[0126] The battery 592 is electrically coupled to the
microprocessor 584, the RF transmitter 600, and the humidity sensor
608. The battery 592 provides an operational voltage to the
microprocessor 584, the RF transmitter 600, and the humidity sensor
608.
[0127] The switch 588 is electrically coupled to and between the
microprocessor 584 and electrical ground. When the switch 588 is
moved to a closed operational position, the microprocessor 584
generates a control signal to induce the RF transmitter 600 to
transmit an RF signal having an activation command for turning on
the electric motor 286 in the fan assembly 220. Alternately, when
the switch 588 is moved to an open operational position, the
microprocessor 584 generates a control signal to induce the RF
transmitter 600 to transmit an RF signal having a deactivation
command for turning off the electric motor 286 in the fan assembly
220. A portion of the switch 588 extends outwardly from an exterior
of the housing 580 and can be actuated by a person holding the
housing 580.
[0128] The address switch assembly 596 is electrically coupled to
the microprocessor 584. The address switch assembly 596 includes
address switches 610, 612, 614, 616, 618, 620, 622, 624 which
define an 8-bit binary address value which identifies the humidity
sensor module 338 to the fan control module 346. In an exemplary
embodiment, the address value of "11111100" is associated with the
humidity sensor module 338.
[0129] The RF transmitter 600 is operably coupled to the antenna
604. The RF transmitter 600 is provided to transmit RF signals to
the fan control module 346 such that the fan control module 346 can
either activate or deactivate the electric motor 286 in the fan
assembly 220. The microprocessor 584 is programmed to generate a
control signal to induce the RF transmitter 600 to transmit an RF
signal having a binary address value and a binary command value. In
an exemplary embodiment, the binary address value is 8-bit binary
number determined by the address switches 610-624. Further, the
binary command value is 8-bit binary number comprising either an
activation command value (e.g., 000000011) or a deactivation
command value (e.g., 000000001). The activation command value is
utilized by the fan control module 346 for activating the electric
motor 286. The deactivation command value is utilized by the fan
control module 346 for deactivating the electric motor 286.
[0130] In an exemplary embodiment, the RF transmitter 600 transmits
RF signals in a high frequency range (e.g., 3 Mhz-30 MHz). Of
course, in an alternative embodiment, the RF transmitter 600 could
transmit RF signals in another frequency range. In an exemplary
embodiment, the RF transmitter 600 modulates each RF signal to
include data (e.g., an address value and a command value) utilizing
frequency shift keying (FSK) modulation technique. In an
alternative embodiment, the RF transmitter 600 can modulate each RF
signal to include data utilizing any other known modulation
technique such as amplitude modulation (AM), frequency modulation
(FM), and amplitude shift keying (ASK), or the like.
[0131] The humidity sensor 608 is electrically coupled to the
microprocessor 584. The humidity sensor 608 is configured to
generate a sensor signal having an amplitude based on a humidity
level. The microprocessor 584 is programmed to measure the
amplitude of the sensor signal from the humidity sensor 608. If the
amplitude of the sensor signal is greater than or equal to a
predetermined amplitude, the microprocessor 584 determines that the
humidity level is greater than or equal to a predetermined humidity
level. Alternately, if the amplitude of the sensor signal is less
than a predetermined amplitude, the microprocessor 584 determines
that the humidity level is less than the predetermined humidity
level.
[0132] Referring to FIGS. 17, 18 and 35-37, a method for
controlling operation of the humidity sensor module 338 will now be
described.
[0133] At step 1140, the microprocessor 584 makes a determination
as to whether the manually-operated switch 588 in the humidity
sensor module 338 is depressed. If the value of step 1140 equals
"yes", the method advances to step 1142. Otherwise, the method
advances to step 1148.
[0134] At step 1142, the microprocessor 584 makes a determination
as to whether the manually-operated switch 588 in the humidity
sensor module 338 has a closed operational position. If the value
of step 1142 equals "yes", the method advances to step 1144.
Otherwise, the method advances to step 1146.
[0135] At step 1144, the microprocessor 584 generates a first
control signal to induce a first RF transmitter 600 to transmit a
first RF signal having (i) an address value associated with the
humidity sensor module 338 and (ii) a command value corresponding
to an activation command value. After step 1144, the method
advances to step 1162.
[0136] Referring again to step 1142, if the value of step 1142
equals "no", the method advances to step 1146. At step 1146, the
microprocessor 584 generates a second control signal to induce the
first RF transmitter 600 to transmit a second RF signal having (i)
the address value associated with the humidity sensor module 338
and (ii) a command value corresponding to a deactivation command
value. After step 1146, the method advances to step 1162.
[0137] Referring again to step 1140, if the value of step 1140
equals "no", the method advances to step 1148. At step 1148, the
microprocessor 584 makes a determination as to whether the humidity
sensor 608 in the humidity sensor module 338 is generating a sensor
signal. The sensor signal has an amplitude based on an amount of
sensed humidity. If the value of step 1148 equals "yes", the method
advances to step 1150. Otherwise, the method advances to step
1162.
[0138] At step 1150, the microprocessor 584 makes a determination
as to whether an average amplitude of the sensor signal over a
predetermined time interval is greater than a predetermined
amplitude, indicating an excessive amount of humidity. If the value
of step 1150 equals "yes", the method advances to step 1154.
Otherwise, the method advances to step 1162.
[0139] At step 1154, the microprocessor 584 makes a determination
as to whether the first RF transmitter 600 has transmitted an RF
signal with an activation command value during a predetermined time
interval. If the value of step 1154 equals "yes", the method
advances to step 1156. Otherwise, the method advances to step
1158.
[0140] At step 1156, the microprocessor 584 generates a third
control signal to induce the first RF transmitter 600 to transmit a
third RF signal having (i) an address value associated with the
humidity sensor module 338 and (ii) a command value corresponding
to the activation command value. After step 1156, the method
advances to step 1162.
[0141] Referring again to step 1154, if the value of step 1154
equals "no", the method advances to step 1158. At step 1158, the
microprocessor makes a determination as to whether the first RF
transmitter 600 has transmitted an RF signal with a deactivation
command value during the predetermined time interval. If the value
of step 1158 equals "yes", the method advances to step 1160.
Otherwise, the method advances to step 1162.
[0142] At step 1160, the microprocessor 584 generates a fourth
control signal to induce the first RF transmitter 600 to transmit a
fourth RF signal having (i) an address value associated with the
humidity sensor module 338 and (ii) a command value corresponding
to the deactivation command value. After step 1160, the method
advances to step 1162.
[0143] At step 1162, the microprocessor 584 executes a low power
sleep mode algorithm. After step 1162, the method returns to step
1140.
[0144] Referring to FIGS. 17 and 37, the low-power sleep mode
algorithm of step 1162 will now be explained.
[0145] At step 1200, the microprocessor 584 resets a wake-up timer.
After step 1200, the method advances step 1202.
[0146] At step 1202, the microprocessor 584 enters a low power
sleep mode. After step 1202, the method advances to step 1204.
[0147] At step 1204, the microprocessor 584 makes a determination
as to whether the wake-up timer in humidity sensor module 338 has a
timer count greater than a threshold timer count. If the value of
step 1204 equals "yes", the method advances to step 1206.
Otherwise, the method returns to step 1204.
[0148] At step 1206, the microprocessor 584 enters a wake-up mode.
After step 1206, the method returns to step 1140.
[0149] Manual Transmitter Module
[0150] Referring to FIGS. 10, 12, 19 and 20, the manual transmitter
module 342 is provided to transmit an RF signal to the fan control
module 346 to activate the electric motor 286 when a
manually-activated switch 688 has a closed operational position.
The manual transmitter module 342 is further provided to transmit
an RF signal to the fan control module 346 to deactivate the
electric motor 286 when the manually-activated switch 688 has an
open operational position. The manual transmitter module 342
includes a housing 680, a microprocessor 684, a switch 688, a
battery 692, an address switch assembly 696, an RF transmitter 700,
an antenna 704.
[0151] The microprocessor 684 is provided to control operation of
the manual transmitter module 342. The microprocessor 684 is
operably and electrically coupled to the battery 692, the RF
transmitter 700, the switch 688, and the address switch assembly
696. The microprocessor 684 includes an internal memory 685 that is
configured to store executable software instructions and data
utilized by the manual transmitter module 342.
[0152] The battery 692 is electrically coupled to the
microprocessor 684 and the RF transmitter 700. The battery 692
provides an operational voltage to the microprocessor 684 and the
RF transmitter 700.
[0153] The switch 688 is electrically coupled to and between the
microprocessor 684 and electrical ground. When the switch 688 is
moved to a closed operational position, the microprocessor 684
generates a control signal to induce the RF transmitter 700 to
transmit an RF signal having an activation command for turning on
the electric motor 286 in the fan assembly 220. Alternately, when
the switch 688 is moved to an open operational position, the
microprocessor 684 generates a control signal to induce the RF
transmitter 700 to transmit an RF signal having a deactivation
command for turning off the electric motor 286 in the fan assembly
220. A portion of the switch 688 extends outwardly from an exterior
of the housing 680 and can be actuated by a person holding the
housing 680.
[0154] The address switch assembly 696 is electrically coupled to
the microprocessor 684. The address switch assembly 696 includes
address switches 710, 712, 714, 716, 718, 720, 722, 724 which
define an 8-bit binary address value which identifies the manual
transmitter module 342 to the fan control module 346. In an
exemplary embodiment, the address value of "11111000" is associated
with the manual transmitter module 342.
[0155] The RF transmitter 700 is operably coupled to the antenna
704. The RF transmitter 700 is provided to transmit RF signals to
the fan control module 346 such that the fan control module 346 can
either activate or deactivate the electric motor 286 in the fan
assembly 220. The microprocessor 684 is programmed to generate a
control signal to induce the RF transmitter 700 to transmit an RF
signal having a binary address value and a binary command value. In
an exemplary embodiment, the binary address value is 8-bit binary
number determined by the address switches 710-724. Further, the
binary command value is 8-bit binary number comprising either an
activation command value (e.g., 000000011) or a deactivation
command value (e.g., 000000001). The activation command value is
utilized by the fan control module 346 for activating the electric
motor 286. The deactivation command value is utilized by the fan
control module 346 for deactivating the electric motor 286.
[0156] In an exemplary embodiment, the RF transmitter 700 transmits
RF signals in a high frequency range (e.g., 3 Mhz-30 MHz). Of
course, in an alternative embodiment, the RF transmitter 700 could
transmit RF signals in another frequency range. In an exemplary
embodiment, the RF transmitter 700 modulates each RF signal to
include data (e.g., an address value and a command value) utilizing
frequency shift keying (FSK) modulation technique. In an
alternative embodiment, the RF transmitter 700 can modulate each RF
signal to include data utilizing any other known modulation
technique such as amplitude modulation (AM), frequency modulation
(FM), and amplitude shift keying (ASK), or the like.
[0157] Referring to FIGS. 19, 20 and 38-39, a method for
controlling operation of the manual transmitter module 342 will now
be described.
[0158] At step 1240, the microprocessor 684 makes a determination
as to whether the manually-operated switch in the manual
transmitter module is depressed. If the value of step 1240 equals
"yes", the method advances to step 1242. Otherwise, the method
advances to step 1248.
[0159] At step 1242, the microprocessor 684 makes a determination
as to whether the manually-operated switch 688 in the manual
transmitter module 342 has a closed operational position. If the
value of step 1242 equals "yes", the method advances to step 1244.
Otherwise, the method advances to step 1246.
[0160] At step 1244, the microprocessor 684 generates a first
control signal to induce the first RF transmitter 700 to transmit a
first RF signal having (i) an address value associated with the
manual transmitter module 342 and (ii) a command value
corresponding to an activation command value. After step 1244, the
method advances to step 1248.
[0161] Referring again to step 1242, if the value of step 1242
equals "no", the method advances to step 1246. At step 1246, the
microprocessor 684 generates a second control signal to induce the
first RF transmitter 700 to transmit a second RF signal having (i)
the address value associated with the manual transmitter module 342
and (ii) a command value corresponding to a deactivation command
value. After step 1246, the method advances to step 1248.
[0162] At step 1248, the microprocessor 684 executes a low power
sleep mode algorithm. After step 1248, the method returns to step
1240.
[0163] Referring to FIGS. 19 and 39, the low-power sleep mode
algorithm of step 1248 will now be explained.
[0164] At step 1260, the microprocessor 684 resets a wake-up timer.
After step 1260, the advances to step 1262.
[0165] At 1262, the microprocessor 684 enters a low power sleep
mode. After step 1262, the method advances to step 1264.
[0166] At step 1264, the microprocessor 684 makes a determination
as to whether the wake-up timer in manual transmitter module 342
has a timer count greater than the threshold timer count. If the
value of step 1264 equals "yes", the method advances to step 1266.
Otherwise, the method returns to step 1264.
[0167] At step 1266, the microprocessor 684 enters a wake-up mode.
After step 1266, the method returns to step 1240.
[0168] Fan Control Module
[0169] Referring to FIGS. 21-25, the fan control module 346 is
provided to electrically activate the electric motor 286 in the fan
assembly 220, and to electrically deactivate the electric motor
286. The fan control module 346 includes a housing 780, a
microprocessor 784, an AC power plug 788, an AC/DC converter 792, a
controllable switch 796, a switch 797, an AC outlet 798, an RF
receiver 800, and an antenna 804.
[0170] The housing 780 is configured to hold the microprocessor
784, the AC/DC voltage converter 792, the controllable switch 796,
and the RF receiver 800 within the housing 780.
[0171] The AC power plug 788 is coupled to the housing 780 and
includes blades 822, 823 extending outwardly from the housing 780.
The AC power plug 788 is removably electrically coupled to the AC
socket 298 (shown in FIG. 26) of the fan assembly 220 which
receives an AC voltage when the electrical switch 216 (shown in
FIG. 10) has a closed operational position. The AC power plug 788
is further electrically coupled to the AC/DC voltage converter 792
and to the controllable switch 796 such that an AC voltage is
routed from the AC power plug 788 to the AC/DC voltage converter
792 and to the controllable switch 796. In an exemplary embodiment,
the controllable switch 796 is a Triac device or a transistor.
[0172] The AC/DC voltage converter 792 is electrically coupled to
the microprocessor 784 and to the RF receiver 800. The AC/DC
voltage converter 792 is configured to output a DC voltage in
response to the AC voltage from the AC power plug 788. The DC
voltage is received by the microprocessor 784 and the RF receiver
800, which is used to power the microprocessor 784 and the RF
receiver 800.
[0173] The AC socket 798 includes AC socket receptacles 834, 835
(shown in FIG. 22) communicating with electrical connectors 836,
837, respectively. The electrical connectors 836, 837 are
configured to be removably and electrically coupled to the blades
312, 314, respectively, of the AC power plug 290 of the fan
assembly 220. The electrical connector 836 is further electrically
coupled to a first end of the controllable switch 796. A second end
of the controllable switch 796 is electrically coupled to the blade
823 of the AC power plug 788 which is further electrically coupled
to an AC voltage source. The electrical connector 837 is further
electrically coupled to the blade 822 of the AC power plug 788
which is further electrically coupled to an AC voltage source.
[0174] The microprocessor 784 is provided to control operation of
the fan assembly 220. The microprocessor 784 is operably and
electrically coupled to the RF receiver 800, the AC/DC converter
792, and the controllable switch 796. The microprocessor 784
includes an internal memory 785 configured to store executable
software instructions and data utilized by the fan control module
346. The internal memory 785 stores address values associated with
the toilet occupancy sensor module 330, the shower water sensor
module 334, the humidity sensor module 338, and the manual
transmitter module 342 therein.
[0175] The switch 797 is electrically coupled to the microprocessor
784. In an exemplary embodiment, when the switch 797 is moved to a
closed operational position, the microprocessor 784 enters a
learning mode of operation to learn address values associated with
the toilet occupancy sensor module 330, the shower water sensor
module 334, the humidity sensor module 338, and the manual
transmitter module 342. In particular, when the switch 797 is moved
to a closed operational position, the microprocessor 784 enters the
learning mode of operation and when the RF receiver 800 receives RF
signals from the modules 330, 334, 338, 342, the microprocessor 784
stores the associated address values from the RF signals in the
memory 785. After a predetermined amount of time, the
microprocessor 784 exits the learning mode of operation.
Thereafter, the microprocessor 784 can perform tasks in response to
RF signals from the modules 330, 334, 338, 342 having address
values that match the stored address values.
[0176] The RF receiver 800 is operably coupled to the antenna 804.
The RF receiver 800 is provided to receive RF signals from the
toilet occupancy sensor module 330, the shower water sensor module
334, the humidity sensor module 338, and the manual transmitter
module 342.
[0177] In an exemplary embodiment, the RF receiver 800 receives RF
signals in a high frequency range (e.g., 3 Mhz-30 MHz). Of course,
in an alternative embodiment, the RF receiver 800 could receive RF
signals in another frequency range. In an exemplary embodiment, the
RF receiver 800 receives RF signals that are modulated to include
data (e.g., an address value and a command value). The modulated RF
signals can be modulated utilizing a frequency shift keying (FSK)
modulation technique. In an alternative embodiment, the RF receiver
800 can receive modulated RF signals containing data (e.g., an
address value and a command value) that were modulated utilizing
any other known modulation technique such as amplitude modulation
(AM), frequency modulation (FM), and amplitude shift keying (ASK),
or the like.
[0178] The microprocessor 784 is programmed to extract the address
value and the command value from each received RF signal. In an
exemplary embodiment, each address value is an 8-bit binary number,
and the command value is an 8-bit binary number corresponding to
either an activation command value (e.g., 000000011) or a
deactivation command value (e.g., 000000001). The activation
command value is utilized by the fan control module 346 for
activating the electric motor 286. The deactivation command value
is utilized by the fan control module 346 for deactivating the
electric motor 286.
[0179] During operation, when the controllable switch 796 has a
closed operational position, an AC voltage is applied to the AC
socket 798. Further, the AC voltage is supplied through two
conductors in the AC electrical wire 294 to the fan motor 286 for
activating the fan motor 286. When the fan motor 286 is activated,
the motor 286 turns the fan blades 282 to exhaust air from the
interior of the bathroom 200. Alternately, when the controllable
switch 796 has an open operational position, an AC voltage is not
applied to the AC socket 798. Further, the AC voltage is not
supplied through two conductors in the AC electrical wire 294 to
the fan motor 286 and the fan motor 286 is the activated. When the
fan motor 286 is the activated, the motor 286 stops turning the fan
blades 282 to stop exhausting air from the interior of the bathroom
200.
[0180] Referring to FIGS. 21, 26, and 40, a method for controlling
operation of the fan control module 346 and the fan assembly 220
will now be described.
[0181] At step 1300, the microprocessor 784 makes a determination
as to whether an activation timer in the fan control module 346 has
a timer count greater than a first threshold timer count. If the
value step 1300 equals "yes", the method advances to step 1302.
Otherwise, the method advances to step 1304.
[0182] At step 1302, the microprocessor 784 stops generating a
control signal to induce the controllable switch 796 to transition
to an open operational position to stop routing an AC voltage to an
AC outlet device 798, to deactivate a fan motor 286 electrically
coupled to the AC outlet device 798. After step 1302, the method
advances to step 1318.
[0183] Referring again to step 1300, if the value step 1300 equals
"no", the method advances to step 1304. At step 1304, the
microprocessor 784 makes a determination as to whether the RF
receiver 800 in the fan control module 346 received an RF signal.
If the value of step 1304 equals "yes", the method advances to step
1306. Otherwise, the method advances to step 1318.
[0184] At step 1306, the microprocessor 784 makes a determination
as to whether the address value is equal to one of a plurality of
the predetermined address values. In an exemplary embodiment, the
predetermined address values are: "11111111" for the toilet
occupancy sensor module 330, "11111110" for the shower water sensor
module 334, "11111100" for the humidity sensor module 338, and
"11111000" for the manual transmitter module 342 which are stored
in the memory device 785. If the value of step 1306 equals "yes",
the method advances to step 1308. Otherwise, the method advances to
step 1318.
[0185] At step 1308, the microprocessor 784 makes a determination
as to whether the command value is equal to an activation command
value. If the value of step 1308 equals "yes", the method advances
to step 1310. Otherwise, the method advances to step 1314.
[0186] At step 1310, the microprocessor 784 generates a control
signal to induce the controllable switch 796 to transition to a
closed operational position to route the AC voltage to the AC
outlet device 798, to activate the fan motor 286 electrically
coupled to the AC outlet device 798. After step 1310, the method
advances to step 1312.
[0187] At step 1312, the microprocessor 784 resets the activation
timer in the fan control module 346. After step 1312, the method
advances to step 1318.
[0188] Referring again to step 1308, if the value step 1308 equals
"no", the method advances to step 1314. At step 1314, the
microprocessor 784 makes a determination as to whether the command
value is equal to a deactivation command value. If the value step
1314 equals "yes", the method advances to step 1316. Otherwise, the
method advances to step 1318.
[0189] At step 1316, the microprocessor 784 stops generating the
control signal to induce the controllable switch 796 to transition
to the open operational position to stop routing the AC voltage to
the AC outlet device 798, to deactivate the fan motor 286
electrically coupled to the AC outlet device 798. After step 1316,
the method returns to step 1300.
[0190] The remote control system for controlling operation of the
fan assembly provides a substantial advantage over other systems.
In particular, the remote control system provides a technical
effect of utilizing at least one of a toilet occupancy sensor
module, a shower water sensor module, a humidity sensor module, and
a manual transmitter module, to transmit wireless RF signals to a
fan control module for remotely activating and deactivating an
electric motor in a fan assembly.
[0191] In an exemplary embodiment, each of the following modules
utilize a microprocessor therein: the toilet occupancy sensor
module 330, the shower water sensor module 334, the humidity sensor
module 338, the manual transmitter module 342, and the fan control
module 346. In an alternative embodiment, another type of
controller could be utilized in each of the foregoing modules to
implement the steps performed by each respective microprocessor
described above.
[0192] The above-described methods can be at least partially
embodied in the form of one or more computer readable media having
computer-executable instructions for practicing the methods. The
computer-readable media can comprise one or more of the following:
hard drives, flash memory, and other computer-readable media known
to those skilled in the art; wherein, when the computer-executable
instructions are loaded into and executed by one or more
microprocessors, the one or more microprocessors are programmed to
implement at least portions of the methods.
[0193] While the claimed invention has been described in detail in
connection with only a limited number of embodiments, it should be
readily understood that the invention is not limited to such
disclosed embodiments. Rather, the claimed invention can be
modified to incorporate any number of variations, alterations,
substitutions or equivalent arrangements not heretofore described,
but which are commensurate with the spirit and scope of the
invention. Additionally, while various embodiments of the claimed
invention have been described, it is to be understood that aspects
of the invention may include only some of the described
embodiments. Accordingly, the claimed invention is not to be seen
as limited by the foregoing description.
* * * * *