U.S. patent application number 16/603935 was filed with the patent office on 2020-04-23 for air conditioning apparatus, control method for same, and control program.
The applicant listed for this patent is SHARP KABUSHIKI KAISHA. Invention is credited to TAKAHIDE FUJII, YOSHIHIKO MATSUBARA, HARUHISA URA.
Application Number | 20200124303 16/603935 |
Document ID | / |
Family ID | 63793169 |
Filed Date | 2020-04-23 |
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United States Patent
Application |
20200124303 |
Kind Code |
A1 |
MATSUBARA; YOSHIHIKO ; et
al. |
April 23, 2020 |
AIR CONDITIONING APPARATUS, CONTROL METHOD FOR SAME, AND CONTROL
PROGRAM
Abstract
An air purifier (10) that purifies air includes a comparing unit
(11c) that compares indoor environment data acquired by an indoor
environment acquiring unit (11a) with outdoor environment data that
an outdoor environment acquiring unit (11b) has acquired via a
communication network and a communication unit (15), and a speech
control unit (11d) that controls speech of the air purifier (10)
based on the comparison result.
Inventors: |
MATSUBARA; YOSHIHIKO; (Sakai
City, Osaka, JP) ; FUJII; TAKAHIDE; (Sakai City,
Osaka, JP) ; URA; HARUHISA; (Sakai City, Osaka,
JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SHARP KABUSHIKI KAISHA |
Sakai City, Osaka |
|
JP |
|
|
Family ID: |
63793169 |
Appl. No.: |
16/603935 |
Filed: |
August 22, 2017 |
PCT Filed: |
August 22, 2017 |
PCT NO: |
PCT/JP2017/029952 |
371 Date: |
October 9, 2019 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
F24F 2110/50 20180101;
F24F 7/00 20130101; F24F 11/58 20180101; F24F 11/39 20180101; F24F
2120/10 20180101; F24F 13/28 20130101; F24F 11/0008 20130101; F24F
11/0001 20130101 |
International
Class: |
F24F 11/00 20180101
F24F011/00; F24F 11/39 20180101 F24F011/39; F24F 13/28 20060101
F24F013/28; F24F 11/58 20180101 F24F011/58 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 11, 2017 |
JP |
2017-078335 |
Claims
1. An air conditioning apparatus that executes air conditioning
where a state of indoor air is adjusted, the air conditioning
apparatus comprising: a detecting unit that detects a state of
indoor air; an acquiring unit that acquires information of a state
of outdoor air via a communication network; a comparing unit that
compares the state of indoor air that the detecting unit has
detected with the state of outdoor air that the acquiring unit has
acquired; and an operation control unit that controls operations of
the air conditioning apparatus based on a comparison result from
the comparing unit.
2. The air conditioning apparatus according to claim 1, wherein the
operation control unit controls annunciation to a user, based on a
comparison result from the comparing unit.
3. The air conditioning apparatus according to claim 2, wherein, in
a case where the state of indoor air is better than the state of
outdoor air, the operation control unit stops annunciation for
ventilation.
4. The air conditioning apparatus according to claim 2, further
comprising: a human-presence sensor that detects a person; and a
storage device that stores annunciation correlation information,
where content of the annunciation, and urgency information
indicating whether the content has urgency, are correlated, wherein
the operation control unit references the annunciation correlation
information, and annunciation of content without urgency is
performed in a case where the human-presence sensor detects a
person.
5. The air conditioning apparatus according to claim 1, wherein the
comparing unit measures a time lag between change of the state of
indoor air and change of the state of outdoor air, and wherein,
when the state of outdoor air changes, the operation control unit
executes air conditioning corresponding to the change at a timing
based on the time lag.
6. The air conditioning apparatus according to claim 1, wherein,
based on a difference between a steady state of outdoor air and a
steady state of indoor air, the comparing unit determines
airtightness of indoors as to outdoors, and wherein the operation
control unit takes the airtightness into consideration when the
operation control unit executes air conditioning corresponding to
change in the state of outdoor air.
7. A control program that causes a computer to function as the air
conditioning apparatus according to claim 1, the control program
causing the computer to function as the units.
8. A control method for an air conditioning apparatus that executes
air conditioning where a state of indoor air is adjusted, the
method comprising: a detecting step of detecting a state of indoor
air; an acquiring step of acquiring information of a state of
outdoor air via a communication network; a comparing step of
comparing the state of indoor air detected in the detecting step
with the state of outdoor air acquired in the acquiring step; and a
control step of controlling operations of the air conditioning
apparatus based on a comparison result from the comparing step.
Description
TECHNICAL FIELD
[0001] The present invention relates to an air conditioning
apparatus that adjusts the state of air in a room and a control
method therefor, and a control program.
BACKGROUND ART
[0002] Examples of the aforementioned air conditioning apparatus
include air conditioners that have cooling/heating functions, air
purifiers that have air cleaning functions of cleaning air in a
room, humidifiers that have humidifying functions, and so forth.
Generally, air purifiers detect the degree of impurity of the air
in the room using an impurity sensor, and control operations of air
purification in accordance with the detection results (e.g., air
purifier described in PTL 1).
CITATION LIST
Patent Literature
[0003] PTL 1: Japanese Unexamined Patent Application Publication
No. 2012-097955
SUMMARY OF INVENTION
Technical Problem
[0004] In recent years, so-called network home appliances that are
capable of communicating with external devices via a communication
network are becoming commonplace. Accordingly, using information
from an external device to perform appropriate operations is
conceivable.
[0005] An aspect of the present invention has been made in light of
the above-described problem, and it is an object thereof to provide
an air conditioning apparatus or the like that performs operations
in a more appropriate manner than conventionally, using information
from an external device.
Solution to Problem
[0006] In order to solve the above problem, an air conditioning
apparatus according to an aspect of the present invention is as air
conditioning apparatus that executes air conditioning where a state
of indoor air is adjusted. The air conditioning apparatus includes
a detecting unit that detects a state of indoor air, an acquiring
unit that acquires information of a state of outdoor air via a
communication network, a comparing unit that compares the state of
indoor air that the detecting unit has detected with the state of
outdoor air that the acquiring unit has acquired, and an operation
control unit that controls operations of the air conditioning
apparatus based on a comparison result from the comparing unit.
Advantageous Effects of Invention
[0007] According to an aspect of the present invention, advantages
can be yielded where operations can be performed in a more
appropriate manner than conventionally, using information from an
external device.
BRIEF DESCRIPTION OF DRAWINGS
[0008] FIG. 1 is a diagram illustrating an overview of an air
conditioning support system according to an embodiment of the
present invention.
[0009] FIG. 2 is a block diagram illustrating a schematic
configuration of an air purifier in the air conditioning support
system.
[0010] FIG. 3 is a block unit illustrating a schematic
configuration of a control unit and storage unit in the air
purifier.
[0011] FIG. 4 is a flowchart illustrating the flow, of an example
of speech control processing in the air purifier of the above
configuration.
[0012] FIG. 5 is a flowchart illustrating the flow of speech
control processing in an air purifier of an air conditioning
support system according to another embodiment of the present
invention.
[0013] FIG. 6 is a flowchart illustrating the flow of the speech
control processing.
[0014] FIG. 7 is a graph illustrating respective examples of change
in PM 2.5 concentration over time, indoors and outdoors.
[0015] FIG. 8 is a block diagram illustrating a schematic
configuration of an air purifier in an air conditioning support
system according to yet another embodiment of the present
invention.
[0016] FIG. 9 is a flowchart illustrating the flow of time lag
measurement processing in the air purifier of the above
configuration.
[0017] FIG. 10 is a flowchart illustrating the flow of drive
control processing in the air purifier of the above
configuration.
[0018] FIG. 11 is a block diagram illustrating a schematic
configuration of an air purifier in an air conditioning support
system according to another embodiment of the present
invention.
[0019] FIG. 12 is a flowchart illustrating the flow of airtightness
determining processing in the air purifier of the above
configuration.
[0020] FIG. 13 is a flowchart illustrating the flow of drive
control processing in the air purifier of the above
configuration.
DESCRIPTION OF EMBODIMENTS
[0021] Embodiments of the present invention will be described below
in detail. Note that for the sake of convenience in description,
members having the same functions as members shown in the
embodiments are denoted by the same symbols, and description
thereof will be omitted as appropriate.
First Embodiment
[0022] An embodiment of the present invention will be described
with reference to FIG. 1 through FIG. 4.
[0023] (Overview of Air Conditioning Support System)
[0024] FIG. 1 is a diagram illustrating an overview of an air
conditioning support system 1 according to the present embodiment.
The air conditioning support system 1 has an air purifier 10 (air
conditioning apparatus) installed in a user's home 50, a cloud
server 20, and a mobile terminal 30 connected via a wide-area
communication network 60 (communication network), as illustrated in
FIG. 1. The air conditioning support system 1 supports air
conditioning where the state of air in the room of the user's home
50 is adjusted. Note that while one air purifier 10, one cloud
server 20, one mobile terminal 30, and one user's home 50 are
exemplified in FIG. 1, these quantities and types are not
restrictive.
[0025] The air purifier 10 purifies air in the room of the user's
home 50. The air purifier 10 according to the present embodiment is
a so-called network home appliance that has wireless communication
functions for connecting with the wide-area communication network
60 and communicating with the cloud server 20. The wireless
communication functions may be built into the main unit of the air
purifier 10, or may be included in a communication adapter (omitted
from illustration) externally attached to the main unit of the air
purifier 10. Although the air purifier 10 has humidifying functions
in the present embodiment, this does not have to be provided. Also,
although the air purifier 10 is installed in the user's home 50 in
the present embodiment as illustrated in FIG. 1, the location of
installation is not restricted, and the air purifier 10 may be
installed in an office or public space.
[0026] The mobile terminal 30 and air purifier 10 are registered in
the cloud server 20 in a correlated manner in the present
embodiment. The mobile terminal 30 is configured to be able to
remotely operate the air purifier 10 registered in the cloud server
20 in a manner correlated with itself, via the cloud server 20. The
mobile terminal 30 receives various types of information relating
to the air purifier 10 registered in the cloud server 20 in a
manner correlated with itself, from the cloud server 20. Examples
of the mobile terminal 30 may include smartphones, tablet
terminals, and the like. Multiple air purifiers 10 can be remotely
operated from one mobile terminal 30. Also, one air purifier 10 can
be remotely operated from multiple mobile terminals 30.
[0027] The cloud server 20 acquires outdoor environment data in
each region, and provides outdoor environment data of the region
where the user's home 50 is included to the air purifier 10 in the
present embodiment. Accordingly, identification data of the region
where the user's home 50 is included is registered in the cloud
server 20 in a manner correlated with the air purifier 10. Note
that the cloud server 20 may collect outdoor environment data of
each region from sensors installed in the region, or may acquire
outdoor environment data of each region that has been collected by
a different server.
[0028] The environment data includes data (information) indicating
the state of the air, and data indicating other environmental
states. Examples of the data indicating the state of the air
include concentrations of airborne microparticles (e.g., dust,
pollen, PM 10, PM 2.5, and so forth), odor levels, temperature,
humidity, and so forth. Examples of the data indicating other
environmental states include illuminance and so forth. Also,
examples of the identification data include the address, postal
code, name of prefecture, and so forth, of the user's home 50.
[0029] A wireless LAN (wireless local area network), which is a
narrowband communication network, is installed in the user's home
50. A relay station 40 of the wireless LAN is connected to the
wide-area communication network 60 including the Internet. The
relay station 40 is communication equipment such as a WiFi
(registered trademark) router, a WiFi (registered trademark) access
point, or the like, for example. Although a configuration where the
Internet is included as the wide-area communication network 60 is
exemplified in the present embodiment, telephone networks, mobile
communication networks, CATV (cable television) communication
networks, satellite communication networks, and so forth, can also
be used.
[0030] The cloud server 20 and the air purifier 10 are capable of
communication via the wide-area communication network 60 and the
relay station 40 of the wireless LAN. The cloud server 20 and the
mobile terminal 30 are also capable of communication via the
wide-area communication network 60. Internet connection of the
mobile terminal 30 and wide-area communication network 60 is
performed using 3G (3rd Generation), LTE (Long Term Evolution),
in-home or public WiFi (registered trademark) access points, or the
like. Note that the air purifier 10 and mobile terminal 30 are both
wireless communication equipment, and can communicate with each
other via the relay station 40 without going through the wide-area
communication network 60. Further, known arrangements can be used
for the cloud server 20 and the mobile terminal 30, and accordingly
detailed description thereof will be omitted.
[0031] (Overview of Air Purifier)
[0032] FIG. 2 is a block diagram illustrating a schematic
configuration of the air purifier 10. The air purifier 10 includes
a control unit 11, a storage unit 12 (storage device), a drive unit
13, a sensor unit 14, a communication unit 15, an operating panel
16, and an audio output unit 17, as illustrated in FIG. 2.
[0033] The control unit 11 controls operations of each of the units
of the air purifier 10, and is made up of a computer device
configured of a computation processing unit, such as a CPU (central
processing unit) or dedicated processor, or the like, for example.
The control unit 11 centrally controls operations of the units of
the air purifier 10 by reading out and executing programs, which
are stored in the storage unit 12, for implementing various types
of control in the air purifier 10. Details of the control unit 11
will be described later.
[0034] The storage unit 12 stores various types of data used in the
air purifier 10, and includes RAM (Random access memory), ROM (read
only memory), an HDD (Hard disk drive), or the like.
[0035] The drive unit 13 executes air conditioning operations of
the air purifier 10 such as air purifying operations, humidifying
operations, and so forth, by being supplied with electric power.
Examples of the drive unit 13 include a blower fan for blowing out
air, a discharging device to generate ions or the like in air, a
heater to evaporate water, and so forth. The drive unit 13 is
controlled by the control unit 11.
[0036] The sensor unit 14 senses indoor environment of the user's
home 50 where the air purifier 10 is installed. The sensor unit 14
according to the present embodiment includes a dust sensor 14a that
detects microparticles such as dust, pollen, PM 2.5, and so forth,
that are airborne in the room, an odor sensor 14b for detecting
odor, an illuminance sensor 14c for detecting illuminance, a
temperature sensor 14d for detecting temperature, a humidity sensor
14e for detecting humidity, and a human-presence sensor 14f for
detecting a person. The sensor unit 14 may further have a CO.sub.2
sensor to detect CO.sub.2 concentration in the room. Note that
known arrangements can be used for these sensors, and accordingly
detailed description thereof will be omitted.
[0037] The air purifier 10 performs air purifying operations so
that the detection level of the microparticles such as dust and the
like and odor detection level are each a predetermined level or
lower. In a case where the detection level of illuminance is a
predetermined level or lower, i.e., in a case where it is dark in
the room, the air purifier 10 performs low-mode air purifying
operations. Thus, the environment sensed by the dust sensor 14a,
odor sensor 14b, and illuminance sensor 14c are necessary for the
air purifier 10 to control air purifying operations.
[0038] The communication unit 15 performs mutual communication with
the cloud server 20 via the relay station 40 of the wireless LAN
and wide-area communication network 60, under control of the
control unit 11.
[0039] The operating panel 16 is a user interface for the user to
input instructions to the air purifier 10, and notification to be
made regarding the state of the air purifier 10 under control of
the control unit 11. Examples of states of the air purifier 10
include the operating mode, temperature and humidity in the room,
value where electric power consumption is converted into
electricity charges, degree of impurity (dust, odor, etc.) of the
air in the room, whether or not humidification is performed, and so
forth.
[0040] The audio output unit 17 is an audio output device such as a
speaker or the like. The control unit 11 outputs audio based on
audio data stored in the storage unit 12 from the audio output unit
17.
[0041] Note that the air purifier 10 is configured so as to be
capable of being operated not only by remote operations from the
mobile terminal 30, but also by near field wireless communication
using infrared rays for example, from a remote controller that is
omitted from illustration. Alternatively, operation by speech may
be enabled.
[0042] The air purifier 10 further is provided with various
members, such as a filter that is disposed in the flow path of air
in the air purifier 10 to trap the microparticles in the air, a
water tank storing water for the air purifier 10 to perform
humidifying operations, and so forth, although omitted from the
drawings. The sensor unit 14 also has various sensors, such as a
sensor for sensing the water level in the water tank, a sensor for
sensing blockage of the filter, and so forth. Blockage of the
filter can be detected from change in amount of wind and pressure,
degree of light transmission of the filter, and so forth. Sensing
of blockage of the filter is used for notification prompting
replacement of the filter. Note that the number of hours of use of
the filter may be counted, and used for notification to prompt the
replacement.
[0043] (Details of Air Purifier)
[0044] FIG. 3 is a block unit illustrating a schematic
configuration of the control unit 11 and storage unit 12 in the air
purifier 10. The control unit 11 has an indoor environment
acquiring unit 11a (detecting unit), an outdoor environment
acquiring unit 11b (acquiring unit), a comparing unit 11c, and a
speech control unit 11d (operation control unit), as illustrated in
FIG. 3. Also, the storage unit 12 has a speech content table 12a
(annunciation correlation information).
[0045] The speech content table 12a includes speech content
correlated with speech condition. The speech content table 12a may
be stored in the air purifier 10 beforehand, or may be acquired
from the cloud server 20 via the wide-area communication network
60, relay station 40, and communication unit 15, and stored in the
storage unit 12.
[0046] The indoor environment acquiring unit 11a acquires (detects)
environment data in the room which has been sensed (detected) by
the sensor unit 14. The indoor environment acquiring unit 11a sends
the acquired indoor environment data to the comparing unit 11c and
the speech control unit 11d.
[0047] The outdoor environment acquiring unit 11b acquires outdoor
environment data of the region including the user's home 50 from
the cloud server 20 via the wide-area communication network 60,
relay station 40, and communication unit 15. The outdoor
environment acquiring unit 11b sends the acquired outdoor
environment data to the comparing unit 11c.
[0048] The comparing unit 11c compares the indoor environment data
from the indoor environment acquiring unit 11a and the outdoor
environment data from the outdoor environment acquiring unit 11b.
The comparing unit 11c notifies the speech control unit 11d of the
comparison result.
[0049] In a case where a certain speech condition is satisfied, the
speech control unit 11d controls the audio output unit 17 to
reference the speech content table 12a of the storage unit 12 and
speak speech content corresponding to the speech condition.
[0050] The speech control unit 11d further judges whether or not to
perform the above speech on the basis of a comparison result from
the comparing unit 11c in the present embodiment. Specifically, in
a case where speech content of "ventilating the room is
recommended" is selected from the speech content table 12a, the
speech control unit 11d effects control not to speak the speech
content in a case where the comparison result is that "data of
outdoor environment from outdoor environment acquiring unit 11b is
poorer than data of indoor environment from indoor environment
acquiring unit 11a".
[0051] As one example, assumption will be made that the above
speech content is correlated in the speech content table 12a with a
speech condition of "indoor PM 2.5 concentration is 35
.mu.g/m.sup.3 or higher". In this case, even when the data of
indoor environment from the indoor environment acquiring unit 11a
satisfies the above speech condition, if the comparison result is
that "outdoor PM 2.5 concentration is higher than indoor PM 2.5
concentration", control is effected by the speech control unit 11d
so that the above speech content is not spoken.
[0052] Accordingly, operations of the air purifier 10 are
controlled on the basis of the comparison result of the indoor
environment data and outdoor environment data. Thus, more
appropriate operations of the air purifier 10 can be realized, as
compared to a conventional case where operations of the air
conditioning apparatus are controlled on the basis of the state of
the air in the room.
[0053] Also, speech (annunciation) to the user is controlled on the
basis of the comparison result, and therefore more appropriate
speech to the user can be realized. Also, in a case where the
indoor environment data is better than the outdoor environment
data, speech regarding ventilation is stopped, and therefore a
situation where the indoor environment is worsened by performing
ventilation can be avoided.
[0054] (Speech Control Processing)
[0055] FIG. 4 is a flowchart illustrating the flow of an example of
speech control processing by the speech control unit 11d of the air
purifier 10 of the above configuration. Note that the speech
control processing illustrated in FIG. 4 may be performed
periodically, or may be performed in accordance with some sort of
trigger. As illustrated in FIG. 4, first, judgment is made
regarding whether or not the indoor PM 2.5 concentration acquired
from the indoor environment acquiring unit 11a satisfies a speech
condition of 35 .mu.g/m.sup.3 or higher (S10). In a case where the
speech condition is not satisfied (NO in S10), the air in the room
is deemed to be clean, and the processing is ended without
speaking.
[0056] On the other hand, in a case where the speech condition is
satisfied (YES in S10), judgment is made regarding whether the
outdoor environment acquiring unit 11b has acquired outdoor PM 2.5
concentration (S11). This judgment can be performed on the basis of
whether or not outdoor PM 2.5 concentration can be acquired from
the outdoor environment acquiring unit 11b. Alternatively, this may
be performed on the basis of the comparison result from the
comparing unit 11c. The reason is that in a case where the outdoor
environment acquiring unit 11b has not acquired the outdoor PM 2.5
concentration, the comparing unit 11c can notify the speech control
unit 11d that comparison is difficult to be made.
[0057] In a case where the outdoor PM 2.5 concentration is acquired
(YES in S11), the comparison result from the comparing unit 11c is
referenced, and judgment is made regarding whether or not the
indoor PM 2.5 concentration is higher than the outdoor PM 2.5
concentration (S12). In a case where the indoor PM 2.5
concentration is higher than the outdoor PM 2.5 concentration (YES
in S12), the speech content of "ventilating the room is
recommended" is caused to be spoken via the audio output unit 17
(S13). Accordingly, the indoor PM 2.5 concentration can be improved
(lowered) by the user ventilating the room. Thereafter, the
processing ends.
[0058] On the other hand, in a case where the indoor PM 2.5
concentration is lower than the outdoor PM 2.5 concentration (NO in
S12), the speech is not performed and processing is ended. Thus, a
situation where the indoor PM 2.5 concentration is further worsened
(raised) by the user ventilating the room can be avoided. Note that
in a case where the outdoor PM 2.5 concentration has not been
acquired (NO in S11), the speech content is caused to be spoken via
the audio output unit 17 (S13) in the same way as conventionally,
and thereafter the processing ends.
[0059] [Modification]
[0060] Note that the comparison result from the comparing unit 11c
may be one of the speech conditions in the speech content table
12a. In this case, the speech control unit 11d can cause the audio
output unit 17 to speak the speech content corresponding to the
comparison result from the comparing unit 11c.
[0061] For example, in a case where the comparison result is that
the indoor PM 2.5 concentration is lower than the outdoor PM 2.5
concentration, speech can be made that "The air outdoors is less
clean than the air indoors, so please refrain from ventilating the
room.". On the other hand, in a case where the comparison result is
that the indoor PM 2.5 concentration is higher than the outdoor PM
2.5 concentration, speech can be made that "Please ventilate the
room.".
Second Embodiment
[0062] Next, description of another embodiment of the present
invention will be made with reference to FIG. 5 and FIG. 6. The air
conditioning support system 1 according to the present embodiment
differs from the air conditioning support system 1 illustrated in
FIG. 1 through FIG. 4 with regard to operations of speech control
at the speech control unit 11d of the air purifier 10, differs in
that certain data is added to the speech content table 12a, and the
other configurations are the same.
[0063] In the present embodiment, in a case where a certain speech
condition is satisfied but the speech content corresponding to the
speech condition does not need to be spoken immediately, i.e.,
there is no urgency, the speech control unit 11d causes the speech
content to be spoken when the human-presence sensor 14f detects a
person. The speech content table 12a also includes whether or not
there is the aforementioned urgency (urgency information) for each
speech content in the present embodiment. In this case, appropriate
speech can be performed to the user in comparison with the
conventional case where speech of content without urgency is
performed regardless of whether or not there is a user.
[0064] For example, a case will be assumed where speech content of
"good morning" is correlated in the speech content table 12a with a
speech condition of "the illuminance sensor 14c detecting that the
surroundings are gradually becoming brighter", and urgency
information of "no urgency" is correlated. At this time, even if
the above speech condition is satisfied, the speech control unit
11d does not immediately speak, but rather speaks the above speech
content when the human-presence sensor 14f detects a person.
[0065] FIG. 5 and FIG. 6 are flowcharts illustrating the flow of
speech control processing at the speech control unit 11d according
to the present embodiment. Note that the speech control processing
in FIG. 5 and FIG. 6 may each be performed periodically, or may be
performed in accordance with some sort of trigger.
[0066] As illustrated in FIG. 5, judgment is made whether or not
any of various speech conditions included in the speech content
table 12a is satisfied (S20). In a case where none of these speech
conditions is satisfied (NO in S20), the processing ends.
[0067] On the other hand, in a case where any of the speech
conditions is satisfied (YES in S20), the speech content table 12a
is referenced, and judgment is made regarding whether or not the
speech content corresponding to the relevant speech condition has
urgency (S21). In a case where there is urgency (YES in S21), the
speech content is spoken via the audio output unit 17 (S22), and
thereafter the processing ends. In a case where there is no urgency
on the other hand (NO in S21), the speech content is suspended
(S23), and thereafter the processing ends.
[0068] Judgment is made regarding whether or not the human-presence
sensor 14f has detected a person (S30), as illustrated in FIG. 6.
In a case where no person is detected (NO in S30), the processing
ends. On the other hand, in case where a person is detected (YES in
S30), judgment is made regarding whether or not there is speech
content that has been suspended (S31). In a case where there is
none of the speech content (NO in S31), the processing ends.
[0069] On the other hand, in a case where there is suspended speech
content (YES in S31), judgment is made regarding whether or not it
is appropriate to speak the speech content at the current point
(S32). For example, if the speech content that has been suspended
is "good morning" and the current time is evening, the speech
content is not appropriate. In a case of not being appropriate (NO
in S32), the flow advances to step S34. On the other hand, in a
case of being appropriate to speak the speech content at the
current point (YES in S32), the speech content is spoken via the
audio output unit 17 (S33), and the flow advances to step S34.
[0070] In step S34, the speech content, which is to say, the speech
content not appropriate to speak at the current point, or speech
content that has been spoken is cancelled from the suspended speech
content. Thereafter, the processing is ended.
[0071] (Additional Notes)
[0072] In a case where a certain speech condition is satisfied but
the speech content corresponding to the speech condition has no
urgency, the speech control unit 11d may speak the speech content
at a time when the frequency of the human-presence sensor 14f
detecting a person exceeds a reference value. This can be done by
changing step S30 illustrated in FIG. 6 to a step of judging
whether or not the above frequency of detecting a person exceeds a
reference value.
Third Embodiment
[0073] Next, yet another embodiment of the present invention will
be described with reference to FIG. 7 through FIG. 10. The air
conditioning support system 1 according to the present embodiment
differs from the air conditioning support system 1 illustrated in
FIG. 1 through FIG. 4 with regard to the configuration of the
control unit 11 in the air purifier 10, and other configurations
are the same.
[0074] Now, indoors is not normally a space that is completely
airtight from the outdoors. Accordingly, the indoor environment
will change in accordance with change in the outdoor
environment.
[0075] FIG. 7 is a graph illustrating respective examples of change
in PM 2.5 concentration over time, indoors and outdoors. It can be
understood from referencing FIG. 7 that a while after the outdoor
PM 2.5 concentration starts to rise, the indoor PM 2.5
concentration also starts to rise. Thus, there is a time lag
.DELTA.t from the outdoor PM 2.5 concentration starting to rise
until the indoor PM 2.5 concentration starts to rise.
[0076] Accordingly, the air purifier 10 according to the present
embodiment measures the time lag between change (deterioration) in
the outdoor environment and change in the indoor environment
beforehand, and when the outdoor environment changes, the driving
unit is controlled at a timing based on the above time lag, so as
to handle the changing environment. In this case, the
aforementioned air purifying can be executed at an appropriate
timing before the indoor environment changes due to the outdoor
environment changing. As a result, effects on the indoor
environment due to the outdoor environment deteriorating can be
suppressed.
[0077] That is to say, while passive control, where air purifying
operations are strengthened upon the indoor environment
deteriorating, has been conventionally performed, active control
where air purifying operations are strengthened before the indoor
environment deteriorating can be performed in the present
embodiment.
[0078] FIG. 8 is a block diagram illustrating a schematic
configuration of the air purifier 10 according to the present
embodiment. The control unit 11 illustrated in FIG. 8 differs from
the control unit 11 illustrated in FIG. 3 with regard to the point
that a time lag measuring unit 11e (comparing unit) is provided
instead of the comparing unit 11c, and the point that a drive
control unit 11f (operation control unit) is provided instead of
the speech control unit 11d, and other configurations are the
same.
[0079] The time lag measuring unit 11e compares indoor environment
data from the indoor environment acquiring unit 11a and outdoor
environment data from the outdoor environment acquiring unit 11b,
and measures the time lag, which is the period from the outdoor
environment data starting to change until the indoor environment
data starts to change. The time lag measuring unit 11e notifies the
drive control unit 11f of the determined time lag.
[0080] The drive control unit 11f controls driving of the drive
unit 13 on the basis of various detection results from the sensor
unit 14, or on the basis of instructions from the user via the
operating panel 16 or communication unit 15. For example, in a case
where the dust sensor 14a detects a rise in PM 2.5 concentration,
the blower fan is instructed to raise the rotation rate.
[0081] In the present embodiment, the drive control unit 11f
acquires time lag from the time lag measuring unit 11e beforehand,
and upon the outdoor environment from the outdoor environment
acquiring unit 11b changing, controls the drive unit 13 to handle
the change in environment, at a timing based on the time lag.
[0082] FIG. 9 and FIG. 10 are flowcharts illustrating the flows of
time lag measurement processing and drive control processing at the
time lag measuring unit 11e and drive control unit 11f of the air
purifier 10 having the configuration described above. The
processing illustrated in FIG. 9 and the processing illustrated in
FIG. 10 are preferably performed in an alternating manner.
[0083] First, judgment is made regarding whether or not outdoor
environment data has changed (S40), as illustrated in FIG. 9. In a
case where outdoor environment data has not changed (NO in S40),
the processing ends. On the other hand, in a case where outdoor
environment data has changed (YES in S40), the flow stands by until
indoor environment data changes (S41). Upon indoor environment data
changing, the time lag between outdoor environment data changing
and outdoor environment data changes is measured (S42), and the
drive control unit 11f is notified of the measured time lag (S43).
Thereafter, the processing ends.
[0084] As illustrated in FIG. 10, whether outdoor environment data
has changed is first judged (S50). In a case where outdoor
environment data has not changed (NO in S50), the processing ends.
On the other hand, in a case where outdoor environment data has
changed (YES in S50), a point in time where change in the outdoor
environment data can be appropriately handled is determined on the
basis of the time lag from the time lag measuring unit 11e (S51).
Upon this point in time arriving (S52), the drive unit 13
controlled so as to handle the change in the outdoor environment
data (S53). Thereafter, the processing ends.
[0085] [Additional Notes]
[0086] Note that the time lag measuring unit 11e may store history
of measured time lags in the storage unit 12, and determine the
time lag at the current point on the basis of the time lag history.
The drive control unit 11f may also control the drive unit 13 to
handle forecasts of outdoor environment, such as weather forecasts,
pollen forecast, and so forth. In this case, step S50 can be
changed to a step of judging whether or not a forecast that the
outdoor environment data will change has been acquired.
Fourth Embodiment
[0087] Next, another embodiment of the present invention will be
described with reference to FIG. 11 and FIG. 12. The air
conditioning support system 1 according to the present embodiment
differs from the air conditioning support system I illustrated in
FIG. 1 through FIG. 4 with regard to the configuration of the
control unit 11 in the air purifier 10, and other configurations
are the same.
[0088] FIG. 11 is a block diagram illustrating a schematic
configuration of the air purifier 10 according to the present
embodiment. The control unit 11 illustrated in FIG. 11 differs from
the control unit 11 illustrated in FIG. 8 with regard to the point
that an airtightness determining unit 11 (comparing unit) is
provided instead of the time lag measuring unit 11e, and the point
that a drive control unit 11h (operation control unit) is provided
instead of the drive control unit 11f, and other configurations are
the same.
[0089] The indoor environment changes in accordance with change in
the outdoor environment, as described above. However, it is
conceivable that the effects of change in the indoor environment in
accordance with change in the outdoor environment are dependent on
the airtightness of the room. That is to say, it is conceivable
that the lower the airtightness of the room is, the greater the
effects will be, and the higher the airtightness of the room is,
the smaller the effects will be. Referencing the graph in FIG. 7,
it is conceivable that the difference .DELTA.x between the outdoor
PM 2.5 concentration and the indoor PM 2.5 concentration
corresponds to the airtightness.
[0090] Accordingly, in the air purifier 10 according to the present
embodiment, the airtightness determining unit 11g calculates the
difference .DELTA.x between the outdoor environment data and the
indoor environment data during a steady state period where there is
no change in the indoor environment data from the indoor
environment acquiring unit 11a and the outdoor environment data
from the outdoor environment acquiring unit 11b, and determines the
airtightness of the room on the basis of the calculated difference
.DELTA.x. The airtightness determining unit 11g notifies the drive
control unit 11h of the airtightness data that has been
determined.
[0091] The drive control unit 11h controls driving of the drive
unit 13 on the basis of various detection results from the sensor
unit 14, or on the basis of instructions from the user via the
operating panel 16 or communication unit 15, in the same way as the
above-described drive control unit 11f. In the present embodiment,
the drive control unit 11h acquires airtightness from the
airtightness determining unit 11g beforehand, and when the outdoor
environment from the outdoor environment acquiring unit 11b
changes, controls the drive unit 13 so as to handle the change in
the environment taking into consideration the airtightness from the
airtightness determining unit 11g.
[0092] For example, in a case where airtightness is low, an
arrangement where the drive control unit 11h operates the drive
unit 13 as following can be conceived. That is to say, even if the
airborne pollen count outdoors is low, air purifying operations to
handle pollen are performed. Also, in a case of a weather forecast
of rain, an air purifier 10 that has humidifying functions stops
humidifying operations (humidifying running) beforehand, while an
air purifier 10 that has dehumidifying functions executes strong
dehumidifying operations (dehumidifying running) beforehand. Also,
in a case of a weather forecast of dry weather, an air purifier 10
that has humidifying functions executes strong humidifying
operations beforehand.
[0093] On the other hand, in a case where airtightness is high, an
arrangement where the drive control unit 11h operates the drive
unit 13 as following can be conceived. That is to say, if the
airborne pollen count outdoors is high, air purifying operations to
handle pollen are performed. Also, in a case or a weather forecast
of rain, an air purifier 10 that has humidifying functions executes
low-mode humidifying operations beforehand, while an air purifier
10 that has dehumidifying functions executes low-mode dehumidifying
operations beforehand. In a case of a weather forecast of dry
weather, an air purifier 10 that has humidifying functions executes
low-mode humidifying operations beforehand.
[0094] Now, it is conceivable that rooms with high airtightness are
poorly ventilated. Accordingly, is a case of high airtightness, an
arrangement is conceivable where the drive control unit 11h causes
the drive unit 13 to execute strong air purifying operations.
[0095] According to the above configuration, the airtightness can
be comprehended, whereby effects on the indoor environment based on
the outdoor environment can be comprehended. Accordingly, the air
purifying operations in accordance with change in the outdoor
environment can be appropriately executed, taking airtightness into
consideration.
[0096] FIG. 12 and FIG. 13 are respective flowcharts illustrating
the flow of airtightness determination processing and drive control
processing at the airtightness determining unit 11g and drive
control unit 11h of the air purifier 10 having the above
configuration. The processing illustrated in FIG. 12 and the
processing illustrated in FIG. 13 are preferably performed as
appropriate.
[0097] First, judgment is made regarding whether or not neither
environment data of indoors nor outdoors has changed (S60), as
illustrated in FIG. 12. If at least one of the environment data has
changed (NO in S60), the processing ends. On the other hand, in a
case where neither of the environment data has changed (YES in
S60), the airtightness of the room is determined on the basis of
the difference .DELTA.x between the outdoor environment data and
the indoor environment data (S61), and the drive control unit 11h
is notified of the airtightness that has been determined (S62).
Thereafter, the processing ends.
[0098] As illustrated in FIG. 13, first, judgment is made regarding
whether or not there is change in outdoor environment data (S70).
In a case where there is no change in the outdoor environment data
(NO in S70), the processing ends. On the other hand, in a case
where the outdoor environment data has changed (YES in S70), the
drive unit 13 is controlled so as to be able to handle change in
the outdoor environment data, taking the airtightness from the
airtightness determining unit 11g into consideration (S71).
Thereafter, the processing ends.
[0099] [Additional Notes]
[0100] Although the air purifier 10 that purifies air in a room is
described in the present embodiment, the present invention can be
applied to any air conditioning apparatus that adjusts the
condition of air in a room, such as air conditioners, humidifiers,
and so forth.
[0101] Also, outdoor environment data is acquired from the cloud
server 20 in the above embodiments, but outdoor environment data
detected by various sensors installed outdoors may be acquired via
a narrowband communication network, such as a wireless LAN or the
like.
[0102] [Example of Realization by Software]
[0103] The control block (particularly control unit 11) of the air
purifier 10 may be realized by a logic circuit (hardware) formed in
an integrated circuit (IC chip) or the like, or may be realized by
software using a CPU (Central Processing Unit).
[0104] In a case of the latter, the air purifier 10 has a CPU that
executes commands of programs that are software realizing each of
the functions, ROM (Read Only Memory) or a storage device (these
are referred to as "recording media") where the programs and
various types of data are computer (or CPU)-readably recorded, RAM
(Random Access Memory) where the programs are loaded, and so forth.
The object of the present invention is realized by a computer (or
CPU) reading the programs from the recording media and executing.
For the recording media, "non-transitory tangible media", for
example, a tape, disk/disc, card, semiconductor memory,
programmable logical circuit, or the like, can be used. The above
programs may be supplied to the computer via any transmission
medium (communication network, broadcast waves, etc.) that is
capable of transmitting the programs. Note that one form of the
present invention may be realized in the form of data signals
embedded in carrier waves realized by electronic transmission of
the above programs.
[0105] [Summarization]
[0106] An air conditioning apparatus according to a first form of
the present invention is an air conditioning apparatus that
executes air conditioning where a state of indoor air is adjusted.
The air conditioning apparatus includes a detecting unit that
detects a state of indoor air, an acquiring unit that acquires
information of a state of outdoor air via a communication network,
a comparing unit that compares the state of indoor air that the
detecting unit has detected with the state of outdoor air that the
acquiring unit has acquired, and an operation control unit that
controls operations of the air conditioning apparatus based on a
comparison result from the comparing unit.
[0107] According to the above configuration, operations of the air
conditioning apparatus are controlled based on the comparison
result of the state of indoor air and state of outdoor air. Thus,
more appropriate operations of the air conditioning apparatus can
be realized, as compared to a conventional case where operations of
the air conditioning apparatus are controlled based on the state of
the indoor air.
[0108] Note that examples of the state of the air include
temperature, humidity, concentrations of airborne microparticles,
odor levels, and so forth. Examples of the microparticles include
dust, pollen, PM 10, PM 2.5, and so forth. The state of the outdoor
air may be the state of air near the home, or may be the state of
air of the region where the house is included. Information of the
state of outdoor air can be acquired from detectors that detect the
state of outdoor air, or a server that provides the state of
outdoor air, or some other external device, via a communication
network, to acquire the state of outdoor air.
[0109] In an air conditioning apparatus according to a second form
of the present invention, in the first form, the operation control
unit may control annunciation to a user based on a comparison
result from the comparing unit. In this case, more appropriate
annunciation to the user can be realized. Note that this
annunciation may be performed via an annunciation device included
in the air conditioning apparatus, or may be performed via a
communication device, communication network, and user terminal.
[0110] In an air conditioning apparatus according to a third form
of the present invention, in the second form, in a case where the
state of indoor air is better than the state of outdoor air, the
operation control unit may stop annunciation for ventilation. In
this case, a situation where the state of the air indoors is
worsened by performing ventilation can be avoided.
[0111] In an air conditioning apparatus according to a fourth form
of the present invention, the air conditioning apparatus of the
second form may further include a human-presence sensor that
detects a person, and a storage device that stores annunciation
correlation information, where content of the annunciation, and
urgency information indicating whether the content has urgency, are
correlated. The operation control unit may reference the
annunciation correlation information, and annunciation of content
without urgency may be performed in a case where the human-presence
sensor detects a person. In this case, annunciation can be made to
the user that is more appropriate as compared to a conventional
case where annunciation of content not having urgency is performed
regardless of whether or not a user is present.
[0112] In an air conditioning apparatus according to a fifth form
of the present invention, in the any one of the first through forth
forms, the comparing unit may measure a time lag between change of
the state of indoor air and change of the state of outdoor air, and
when the state of outdoor air changes, the operation control unit
may execute air conditioning corresponding to the change at a
timing based on the time lag. In this case, the air conditioning
can be executed at an appropriate timing before the state of the
indoor air changes, due to the state of the outdoor air changing.
As a result, effects on the state of the indoor air due to the
state of the outdoor air deteriorating can be suppressed.
[0113] In an air conditioning apparatus according to a sixth form
of the present invention, in the any one of the first through fifth
forms, based on a difference between a steady state of outdoor air
and a steady state of indoor air, the comparing unit may determine
airtightness of indoors as to outdoors, and the operation control
unit may take the airtightness into consideration when the
operation control unit executes air conditioning corresponding to
change in the state of outdoor air. Due to being able to comprehend
the airtightness, effects on the state of indoor air based on the
state of outdoor air can be comprehended. Accordingly, the air
conditioning to handle change in the state of the outdoor air can
be appropriately executed taking the airtightness into
consideration.
[0114] A control method for an air conditioning apparatus according
to a seventh form of the present invention is a control method for
an air conditioning apparatus that executes air conditioning where
a state of indoor air is adjusted, the method includes a detecting
step of detecting a state of indoor air, an acquiring step of
acquiring information of a state of outdoor air via a communication
network, a comparing step of comparing the state of indoor air
detected in the detecting step with the state of outdoor air
acquired in the acquiring step, and a control step of controlling
operations of the air conditioning apparatus based on a comparison
result from the comparing step. In this case, advantages the same
as the first form above can be had.
[0115] The air conditioning apparatus according to the forms of the
present invention may be realized by a computer. In this case, a
control program for the air conditioning apparatus that causes the
computer to realize the air conditioning apparatus by causing the
computer to operate as components (software elements) of the air
conditioning apparatus, and a computer-readable recording medium in
which the program is recorded, are encompassed by the scope of the
present invention.
[0116] The present invention is not restricted to the
above-described embodiments. Various modifications can be made
within the scope set forth in the Claims, and embodiments acquired
by appropriately combining technical measures disclosed in
different embodiments also are included in the technical scope of
the present disclosure. Further, new technical features can be
formed by combining technical measures disclosed in each of the
embodiments.
REFERENCE SIGNS LIST
[0117] 1 air conditioning support system
[0118] 10 air purifier (air conditioning apparatus)
[0119] 11 control unit
[0120] 11a indoor environment acquiring unit (detecting unit)
[0121] 11b outdoor environment acquiring unit (acquiring unit)
[0122] 11c comparing unit
[0123] 11d speech control unit (operation control unit)
[0124] 11e time lag measuring unit (comparing unit)
[0125] 11f, 11h drive control unit (operation control unit)
[0126] 11g airtightness determining unit (comparing unit)
[0127] 12 storage unit (storage device)
[0128] 12a speech content table (annunciation correlation
information)
[0129] 13 drive unit
[0130] 14 sensor unit
[0131] 14a dust sensor
[0132] 14b odor sensor
[0133] 14c illuminance sensor
[0134] 14d temperature sensor
[0135] 14e humidity sensor
[0136] 14f human-presence sensor
[0137] 15 communication unit
[0138] 16 operating panel
[0139] 17 audio output unit
[0140] 20 cloud server
[0141] 30 mobile terminal
[0142] 40 relay station
[0143] 50 user's home
[0144] 60 wide-area communication network (communication
network)
* * * * *