U.S. patent application number 13/341196 was filed with the patent office on 2013-07-04 for detection system and method for rail vehicle.
The applicant listed for this patent is John William Brand, Robert Francis Bryant, Jared Klineman Cooper, Scott William Dulmage, David Allen Eldredge, Robert James Foy, Samuel William Golden, John Welsh Mcelroy. Invention is credited to John William Brand, Robert Francis Bryant, Jared Klineman Cooper, Scott William Dulmage, David Allen Eldredge, Robert James Foy, Samuel William Golden, John Welsh Mcelroy.
Application Number | 20130168503 13/341196 |
Document ID | / |
Family ID | 47557480 |
Filed Date | 2013-07-04 |
United States Patent
Application |
20130168503 |
Kind Code |
A1 |
Cooper; Jared Klineman ; et
al. |
July 4, 2013 |
DETECTION SYSTEM AND METHOD FOR RAIL VEHICLE
Abstract
A detection system for a rail vehicle includes a control module,
which has a sensor, input for receiving a signal from a sensor. The
control module is configured to receive the signal and to output
information responsive to the signal. In operation, the control
module and a sensor are deployed on board the rail vehicle. The
sensor is configured to generate the signal responsive to detecting
a designated condition on board the rail vehicle. When the
condition occurs, the sensor outputs the signal, which is received
by the control module. Responsive to the signal, the control module
outputs the information, such as communicating information of the
signal content to another rail vehicle, or to an off board
location. The designated condition may be unauthorized use of a
handheld wireless device in a rail vehicle, or intruder entry into
an unmanned rail vehicle.
Inventors: |
Cooper; Jared Klineman;
(Melbourne, FL) ; Brand; John William; (Melbourne,
FL) ; Bryant; Robert Francis; (Melbourne, FL)
; Dulmage; Scott William; (Melbourne, FL) ;
Eldredge; David Allen; (Melbourne, FL) ; Foy; Robert
James; (Melbourne, FL) ; Golden; Samuel William;
(Melbourne, FL) ; Mcelroy; John Welsh; (Melbourne,
FL) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Cooper; Jared Klineman
Brand; John William
Bryant; Robert Francis
Dulmage; Scott William
Eldredge; David Allen
Foy; Robert James
Golden; Samuel William
Mcelroy; John Welsh |
Melbourne
Melbourne
Melbourne
Melbourne
Melbourne
Melbourne
Melbourne
Melbourne |
FL
FL
FL
FL
FL
FL
FL
FL |
US
US
US
US
US
US
US
US |
|
|
Family ID: |
47557480 |
Appl. No.: |
13/341196 |
Filed: |
December 30, 2011 |
Current U.S.
Class: |
246/167R |
Current CPC
Class: |
G08B 13/00 20130101;
B61L 15/0027 20130101; B61L 23/00 20130101; B60R 25/00 20130101;
B61L 15/0072 20130101 |
Class at
Publication: |
246/167.R |
International
Class: |
B61L 23/00 20060101
B61L023/00 |
Claims
1. A detection system, comprising: a control module configured to
be operably coupled on board a first rail vehicle, the control
module comprising a device interface; wherein the device interface
includes a first sensor input for receiving a first signal from a
first sensor relating to a first occupancy condition of the first
rail vehicle; wherein the device interface includes a second sensor
input for receiving a second signal from a second sensor relating
to a second occupancy condition of the first rail vehicle; and
wherein the control module is configured to at least one of:
determine an occupancy status of the first rail vehicle based on
the first and second signals, or communicate information of the
first and second signals for determination of the occupancy status
of the first rail vehicle.
2. The detection system of claim 1, wherein the control module is
configured to receive a third signal indicative of unmanned
operation of the first rail vehicle, and to enter a mode of
operation of the control module for determining the occupancy
status or communicating the information responsive to the third
signal.
3. The detection system of claim 1, wherein the control module is
configured to at least one of: communicate the occupancy status to
a second rail vehicle; or communicate the information of the first
and second signals to the second rail vehicle, for determination of
the occupancy status of the first rail vehicle at the second rail
vehicle.
4. The detection system of claim 3, wherein the control module is
configured to communicate the occupancy status or the information
to the second rail vehicle over a communication channel of a
distributed power system of the first and second rail vehicles.
5. The detection system of claim 4, wherein the control module is
configured to: communicate a bit incorporating the first signal and
the second signal reporting the occupancy status of the first rail
vehicle to the second rail vehicle; or communicate a byte to the
second rail vehicle, the byte incorporating the information of the
first signal and the second signal.
6. The detection system of claim 1, wherein the control module is
configured to communicate the occupancy status or the information
responsive to the first signal indicating detection of an entryway
of the first rail vehicle having been opened and the second signal
indicating detection of a living being present in an interior of
the first rail vehicle.
7. The detection system of claim 1, wherein: the control module is
configured for operable coupling with an operator interface in the
first rail vehicle; the control module is configured to detect a
use of the operator interface that meets one or more designated
criteria; and the control module is further configured to determine
the occupancy status or communicate the information based on the
use.
8. The detection system of claim 1, wherein the control module is
configured, responsive to receiving the first and second signals,
to generate a control signal for activating a camera in an interior
of the first rail vehicle, and to receive picture information from
the camera.
9. The detection system of claim 1, wherein: the control module is
configured for operable coupling with an operator interface in the
first rail vehicle; and the control module is configured to disable
the operator interface responsive to the occupancy status.
10. A detection system, comprising: a control module on board a
first rail vehicle, the control module comprising a device
interface; a first sensor connected to the device interface and
configured to generate a first signal relating to a first occupancy
condition of the first rail vehicle; and a second sensor connected
to the device interface and configured to generate a second signal
relating to a second occupancy condition of the first rail vehicle;
wherein the control module is configured to receive the first and
second signals and to at least one of: determine an occupancy
status of the first rail vehicle based on the first and second
signals, or communicate information of the first and second signals
for determination of the occupancy status of the first rail
vehicle.
11. The detection system of claim 10, wherein the control module is
configured to at least one of: communicate the occupancy status to
a second rail vehicle; or communicate the information of the first
and second signals to the second rail vehicle, for determination of
the occupancy status of the first rail vehicle at the second rail
vehicle.
12. The detection system of claim 11, wherein the control module is
configured to communicate the occupancy status or the information
to the second rail vehicle over a communication link of a
distributed power system of the first and second rail vehicles.
13. The detection system of claim 12, wherein the control module is
configured to: communicate a bit incorporating the first signal and
the second signal reporting the occupancy status of the first rail
vehicle to the second rail vehicle; or communicate a byte to the
second rail vehicle, the byte incorporating the information of the
first signal and the second signal.
14. The detection system of claim 10, wherein the first sensor is
configured to generate the first signal responsive to an entryway
of the first rail vehicle being opened, and wherein the second
sensor is configured to generate the second signal responsive to
detecting presence of a living being in an interior of the first
rail vehicle.
15. The detection system of claim 14, wherein the first sensor is
an entry ajar sensor operatively coupled to the entryway of the
first rail vehicle, and the second sensor is one of a motion
detection sensor in an interior of the first rail vehicle, a heat
sensor in the interior, an operator control usage sensor in the
interior, a gas constituent sensor in the interior, or a pressure
sensor in the interior.
16. The detection system of claim 10 further comprising: a camera
operably coupled to the control module and configured to capture
picture information am interior of the first rail vehicle; wherein
the control module is configured to activate the camera to capture
the picture information based on the occupancy status.
17. The detection system of claim 16, wherein at least one of the
camera or the control module is configured to store the picture
information and to time stamp the picture information.
18. The detection system of claim 17, wherein said at least one of
the camera or the control module is configured to control
redundantly storing the picture information on a rail vehicle event
recorder.
19. The detection system of claim 10, wherein the control module is
configured to disable an operator interface of the first rail
vehicle responsive to the occupancy status.
20. The detection system of claim 10, wherein the control module is
configured to enter a mode of operation of the control module for
determining the occupancy or communicating the information
responsive to the first rail vehicle being controlled for unmanned
operation.
21. A detection system, comprising: a control module configured to
be operably coupled on board a second rail vehicle, wherein the
control module is configured to: receive information from a first
rail vehicle over a communication channel linking the first rail
vehicle and the second rail vehicle; and generate a control signal
based on the information, wherein the information is indicative of
intruder entry into the first rail vehicle or allows the control
module to determine the intruder entry into the first rail
vehicle.
22. The detection system of claim 21, further comprising an
operator interface, wherein the control module is configured to
communicate the control signal to the operator interface, and the
operator interface is configured to display an operator alert of
the intruder entry responsive to the control signal.
23. The detection system of claim 21, wherein the communication
channel is a communication channel of a distributed power system of
the first and second rail vehicles.
24. A detection system, comprising: a control module configured to
be operably coupled on board a first locomotive, the control module
comprising a device interface; wherein the device interface
includes a first sensor input for receiving a first signal from a
first sensor relating to detecting a first designated condition in
an operator cab of the first locomotive; and wherein the control
module is configured, responsive to receiving the first signal, to
communicate information relating to the first signal to a second
locomotive or to an off-board location.
25. The detection system of claim 24, wherein the control module is
configured to communicate the information responsive to the first
signal being indicative of the first sensor detecting use of a
handheld wireless device in the operator cab.
26. The detection system of claim 24, wherein the device interface
includes a second sensor input for receiving a second signal from a
second sensor relating to detecting a second designated condition
in the operator cab of the first locomotive; and wherein the
control module is configured to communicate the information, the
information relating to the first signal and the second signal,
responsive to the first signal indicating detection of a first
occupancy condition of the operator cab by the first sensor and the
second signal indicating detection of a different, second occupancy
condition of the operator cab by the second sensor.
27. A detection system, comprising: a control module configured to
be operably coupled on board a rail vehicle, the control module
comprising a device interface; wherein the device interface
includes a sensor input for receiving a signal from a sensor; and
wherein the control module is further configured, responsive to the
signal indicating use of a hand-held wireless communication device
in the rail vehicle, to at least one of: store information relating
to the signal on board the rail vehicle; communicate the
information to an off board recipient; or activate a device to
prevent the wireless communications.
28. The detection system of claim 27, wherein the control module is
configured to store the information, communicate the information,
or activate the device responsive to the signal indicating use of
the hand-held wireless communication device in an area of the rail
vehicle where using hand-held wireless devices for wireless
communications is prohibited, said rail vehicle comprising a
locomotive and said area comprising an operator cab of the
locomotive.
29. The detection system of claim 27, wherein the information
relating to the signal comprises at least one of a time of day when
the wireless communication device was used or a duration of how
long the wireless communication device was used.
30. A detection method comprising: receiving a first output from a
first sensor on board the first rail vehicle; receiving a second
output from a second sensor on board the first rail vehicle; and
communicating an occupancy status determined based on the first
output and the second output, or communicating information of the
first output and the second output, wherein the occupancy status or
information is communicated off-board the first rail vehicle.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field
[0002] Embodiments of the invention relate generally to trains and
other rail vehicles. Other embodiments relate to system and methods
for detecting conditions on board a rail vehicle, for security or
similar purposes.
[0003] 2. Discussion of Art
[0004] Some rail vehicles, e.g., locomotives, include an operator
cab. The cab houses an operator control stand or other operator
interface. A locomotive operator controls the locomotive through
the control stand. When the locomotive is coupled to other rail
vehicles to form a train, the control stand provides the operator
control over braking, throttle, and other train functions.
[0005] Trains are commonly provided with more than one locomotive.
The locomotives may be directly coupled together, thereby forming a
locomotive consist. (A consist is a group of vehicles that are
mechanically linked to travel together along a route.)
Alternatively, the locomotives may be separated by one or more
non-powered rail cars (meaning rail vehicles not capable of self
propulsion), thereby being remotely positioned along the train. In
certain circumstances, locomotive consists may be remotely
positioned along the train, with each locomotive consist being
separated by at least one non-powered rail car and being remote
with respect to the other locomotive consist(s). Remotely
positioned locomotive consists along a train provide distributed
power, advantageously allowing for heavier trains and/or enhanced
train control while transiting terrain with significant elevation
changes.
[0006] Freight trains (and other trains having remote locomotives)
are oftentimes operated by a relatively small crew, e.g., one
engineer/operator and one "brakeman." Thus, the remote locomotives
may be unmanned and not regularly monitored. This may provide
opportunities for unauthorized entrants to gain access to the
remote locomotives, at a risk to themselves, the locomotive, and
the train itself should the unauthorized entrant attempt to issue
commands from the operator interface or otherwise meddle with train
equipment.
BRIEF DESCRIPTION OF THE INVENTION
[0007] An embodiment of the invention relates to a detection
system, e.g., a system for detecting a condition in a rail vehicle.
The detection system includes a control module configured to be
operably coupled on board a rail vehicle. The control module
comprises a device interface, which has a sensor input for
receiving a signal from a sensor. The control module is configured
to receive the signal and to output information (e.g., communicate
the information to another rail vehicle) responsive to the
signal.
[0008] In operation, the control module and a sensor are deployed
on board the rail vehicle. The sensor is configured to generate the
signal responsive to detecting a designated condition on board the
rail vehicle. When the condition occurs, the sensor outputs the
signal, which is received by the control module. Responsive to the
signal (and possibly contingent upon the receipt of other signals
or the occurrence of other conditions), the control module outputs
the information, such as communicating information of the signal
content to another rail vehicle, or to an off board location. In
embodiments, the designated condition is unauthorized use of a
handheld wireless device in a rail vehicle, or intruder entry into
an unmanned rail vehicle.
[0009] In another embodiment of the detection system, the detection
system comprises a control module that is configured to be operably
coupled on board a first rail vehicle. The control module comprises
a device interface. The device interface includes a first sensor
input for receiving a first signal from a first sensor relating to
a first occupancy condition of the first rail vehicle. The device
interface also includes a second sensor input for receiving a
second signal from a second sensor relating to a second occupancy
condition of the first rail vehicle. The control module is
configured to determine an occupancy status of the first rail
vehicle based on the first and second signals, and/or to
communicate information of the first and second signals for
determination of the occupancy status of the first rail
vehicle.
[0010] In another embodiment of the detection system, the detection
system comprises a control module on board a first rail vehicle.
The control module comprises a device interface. The detection
system additionally comprises a first sensor and a second sensor on
board the first rail vehicle. The first sensor is connected to the
device interface and is configured to generate a first signal
relating to a first occupancy condition of the first rail vehicle.
The second sensor is connected to the device interface and is
configured to generate a second signal relating to a second
occupancy condition of the first rail vehicle. The control module
is configured to receive the first and second signals and to
determine an occupancy status of the first rail vehicle based on
the first and second signals, and/or to communicate information of
the first and second signals for determination of the occupancy
status of the first rail vehicle.
[0011] In another embodiment, a detection system comprises a
control module configured to be operably coupled on board a second
rail vehicle. The control module is configured to receive
information from a first rail vehicle over a communication channel
linking the first rail vehicle and the second rail vehicle. The
control module is further configured to generate a control signal
based on the information. The information is indicative of intruder
entry into the first rail vehicle, or allows the control module to
determine the intruder entry into the first rail vehicle.
[0012] In another embodiment, a detection system comprises a
control module configured to be operably coupled on board a first
locomotive. The control module comprises a device interface. The
device interface includes a first sensor input for receiving a
first signal from a first sensor relating to detecting a first
designated condition in an operator cab of the first locomotive.
The control module is configured, responsive to receiving the first
signal, to communicate information relating to the first signal to
a second locomotive or to an off-board location.
[0013] In another embodiment, a detection system comprises a
control module that is configured to be operably coupled on board a
rail vehicle. The control module comprises a device interface. The
device interface includes a sensor input for receiving a signal
from a sensor. The control module is further configured, responsive
to the signal indicating use of a hand-held wireless communication
device in the rail vehicle, to: store information relating to the
signal on board the rail vehicle; communicate the information to an
off-board recipient; and/or activate a device to prevent the
wireless communications.
[0014] Another embodiment relates to a detection method. The method
comprises a step of receiving a first signal from a first sensor on
board the first rail vehicle. The method additionally comprises a
step of receiving a second signal from a second sensor on board the
first rail vehicle. The method additionally comprises a step of
communicating an occupancy status that is determined based on the
first signal and the second signal, or communicating information of
the first signal and the second signal. The occupancy status or
information is communicated off-board the first rail vehicle.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The invention may be best understood by reference to the
following description taken in conjunction with the accompanying
drawing figures wherein:
[0016] FIGS. 1-6 are schematic diagrams of respective detection
systems, according to various embodiments of the invention;
[0017] FIG. 7 is a flowchart of a detection method, according to an
embodiment of the invention; and
[0018] FIG. 8 is a flowchart of a detection method, according to
another embodiment of the invention.
DETAILED DESCRIPTION OF THE INVENTION
[0019] Embodiments of the invention relate to systems and methods
for detecting conditions on board rail vehicles, for security or
similar purposes. In one embodiment, a system and method are
directed to detecting unauthorized entry into unmanned rail
vehicles (e.g., in a train). Here, a system includes a control
module and two or more sensors. A rail vehicle is outfitted with
the sensors, which are configured to detect different occupancy
conditions of the rail vehicle. "Occupancy condition" refers to a
state or aspect of the rail vehicle relating to or indicative of
the rail vehicle being occupied by a human or other living being.
The control module is configured to determine an occupancy status
of the rail vehicle (occupied or not occupied) based on signals
that are output/generated by the sensors. If the signals of both
sensors are indicative of the vehicle being occupied according to
different criteria, the control module determines that the vehicle
is occupied. Otherwise, not. Thus, whereas reliance on one sensor
only might result in an increased potential for "false positives,"
in embodiments of the invention the rail vehicle is deemed occupied
only if both sensors agree according to different criteria.
[0020] The occupancy status is determined relative to a first rail
vehicle, but in embodiments, the occupancy status is determined at,
or communicated to, a second rail vehicle. For example, the first
and second rail vehicles may be part of a train or other rail
vehicle consist, with the second rail vehicle being a manned, lead
vehicle, and the first rail vehicle being located remote in the
train. The control module automatically determines the occupancy
status, and takes action responsive thereto, e.g., providing
notification in the manned, second rail vehicle of unauthorized
entry and occupation of remote rail vehicles. Occupancy
status-related information may be communicated between the rail
vehicles over a distributed power system of the train.
[0021] In other embodiments, detection systems are configured for
detecting events other than unauthorized entry into remote rail
vehicles in a train. In one embodiment, for example, a detection
system comprises a control module on board a first rail vehicle and
a first sensor connected to the control module. The first sensor is
configured to generate a first signal responsive to detecting use
of a hand-held wireless device (e.g., cell phone) for wireless
communications in an area of the first rail vehicle where using
hand-held wireless devices for wireless communications is
prohibited. For example, such use may be prohibited in the operator
cab of a locomotive. The control module, responsive to the first
signal, is configured to: store information relating to the first
signal on board the rail vehicle (e.g., when and for how long the
wireless device was used); communicate the information to an
off-board recipient (e.g., central office); and/or activate a
device to prevent the wireless communications.
[0022] FIG. 1 illustrates an embodiment of a detection system 10,
e.g., a system for detecting a condition in a rail vehicle. The
detection system 10 includes a first control module 12 configured
to be operably coupled on board a first rail vehicle 14. (Examples
of how a control module may be configured to be operably coupled on
board a rail vehicle include: the control module is configured to
operate using electrical power available on a rail vehicle, in
regards to available voltage and wattage levels; the control module
is ruggedized or otherwise adapted for use in the environment of
the rail vehicle; the control module is configured to electrically
and/or mechanically interface with one or more systems on board the
rail vehicle, in regards to receiving and transmitting information
or otherwise; etc.) The control module 12 comprises a device
interface 16, which has a sensor input 18 for receiving a signal 20
from a sensor 22. The control module 12 is configured to receive
the signal 20 and to output information 24 (e.g., communicate the
information to another rail vehicle) responsive to the signal
20.
[0023] In operation, the first control module 12 and a sensor 22
are deployed on board the rail vehicle 14. The sensor 22 is
configured to generate the signal 20 responsive to detecting a
designated condition on board the rail vehicle 14. When the
condition occurs, the sensor 22 outputs the signal 20, which is
received by the control module 12. Responsive to the signal 20 (and
possibly contingent upon the receipt of other signals or the
occurrence of other conditions), the control module 12 outputs the
information 24, such as communicating information of the signal
content to another rail vehicle, or to an off board location, or
communicating the information to another on-board system for
performing one or more designated actions responsive to the
information 24. In embodiments, as mentioned above, the designated
condition is unauthorized use of a handheld wireless device in a
rail vehicle, or intruder entry into an unmanned rail vehicle.
[0024] As used herein, the term "module" includes a hardware and/or
software system that operates to perform one or more functions. For
example, a module may include a computer processor, controller, or
other logic-based device that performs operations based on
instructions stored on a tangible and non-transitory computer
readable storage medium, such as a computer memory. Alternatively,
a module may include a hard-wired device that performs operations
based on hard-wired logic of the device. The module(s) shown in the
attached figures may represent the hardware that operates based on
software or hardwired instructions, the software that directs
hardware to perform the operations, or a combination thereof.
[0025] The device interface 16 is a module for receiving signals
from one or more sensors. The device interface 16 may include
electronic and/or mechanical components for receiving signals from
sensors. Examples include receptacles for electromechanical
attachment of cables that run between the sensors and the control
module, electronic components for receiving signals over cables
(transceivers, level equalizers, etc.), electronic devices for
receiving wireless signals (e.g., transceivers and antenna), a bus
connection or other connection for receiving signals from other
rail vehicle systems, or the like. The device interface 16 may
additionally or alternatively include sets of instructions for
controlling electronic equipment to receive and process sensor
signals, e.g., a set of instructions that control a processor to
receive signals over a communication bus or other communication
line of a rail vehicle. The sensor input 18 is a physical and/or
logical channel associated with a designated sensor. In an
embodiment, the sensor input comprises a receptacle for attachment
of a cable that runs between the control module and a single
sensor.
[0026] FIG. 2 shows another embodiment of a detection system 26,
which is configured for determining and responding to an occupancy
status of a rail vehicle. In the detection system 26, the first
control module 12 (with device interface 16) is configured to be
operably coupled on board the first rail vehicle 14. The device
interface 16 includes the first sensor input 18 for receiving a
first signal 28 from a first sensor 30 relating to a first
occupancy condition of the first rail vehicle 14. The device
interface 16 also includes a second sensor input 32 for receiving a
second signal 34 from a second sensor 36 relating to a second
occupancy condition of the first rail vehicle. The control module
12 is configured to: determine an occupancy status of the first
rail vehicle 14 based on the first and second signals 28, 34;
and/or communicates signal information 38 of the first and second
signals for determination of the occupancy status of the first rail
vehicle at another location (e.g., the determination is made at a
second rail vehicle).
[0027] In operation, the first control module 12 is deployed on the
rail vehicle 14, along with the first and second sensors 30, 36.
The first and second sensors are communicatively coupled to the
control module by way of one or more communication links. A link
may comprise a physical connection, such as a wire, connecting the
devices and over which one device communicates with another device,
e.g., the communication is carried in an electric current encoded
with information. Alternatively, a link may comprise a wireless
channel connecting the devices, over which one device communicates
with another device without a physical connection, using radio
waves. The first sensor 30 is configured to detect the first
occupancy condition, and to output the first signal 28 responsive
to detecting the first occupancy condition. The second sensor 36 is
configured to detect the second occupancy condition, and to output
the second signal 34 responsive to detecting the second occupancy
condition. The control module 12, upon receiving the first and
second signals indicative of the first and second sensors detecting
the first and second occupancy conditions, respectively, may
determine an occupancy status (occupied or not occupied) of the
first rail vehicle 14 based on the first and second signals. If the
first rail vehicle is occupied by a living being, the control
module performs one or more designated actions. As discussed in
more detail below, these may include activating a camera on the
first rail vehicle, activating one or more intruder countermeasures
(e.g., disabling operator interfaces on board the first rail
vehicle), and/or communicating the occupancy status 42 to the
second rail vehicle 40 or elsewhere. Alternatively, the control
module may communicate the signal information 38 of the first and
second signals to the second rail vehicle 40, for determination of
the occupancy status of the first rail vehicle at the second rail
vehicle 40.
[0028] The detection system 26 may further comprise a second
control module 44 that is configured to be operably coupled on
board the second rail vehicle 40. The second control module 44 is
configured to receive information 46 from the first rail vehicle 14
(e.g., from the first control module 12) over a communication
channel 48 linking the first rail vehicle and the second rail
vehicle. The information 46 communicated from the first rail
vehicle and received by the second control module 44 on board the
second rail vehicle may include the occupancy status 42, or the
signal information 38 of the sensor signals 28, 34. If the system
26 is configured for the latter (for the signal information 38 to
be communicated from the first rail vehicle to the second rail
vehicle), the second control module 44 will be configured to
determine the occupancy status of the first rail vehicle based on
the signal information 38. In either case (that is, if either the
second control module determines the occupancy status or receives
the occupancy status), the second control module 44 is further
configured to generate one or more control signals 50 based on the
information 46. For example, the second control module 44 may be
configured to generate the control signal(s) 50 if the information
46 is indicative of intruder entry into the first rail vehicle
(e.g., occupancy status indicates the first rail vehicle is
occupied when it is supposed to be unmanned). The system may be
configured for the control signal(s) 50 to control an operator
interface 52 on board the second rail vehicle 40, to alert an
operator of the second rail vehicle. The system may be configured,
alternatively or additionally, for the control signal(s) to serve
some other control purpose, such as initiating communication of one
or more control signals to the first rail vehicle (e.g., for
initiating intruder countermeasures, for activating a camera, or
the like), or initiating communication of signals off board the
vehicles (e.g., an alert to a central office).
[0029] In an embodiment, the detection system is configured for
deployment in a train or other rail vehicle consist. Here, the
first rail vehicle 14 is directly or indirectly mechanically
coupled with the second rail vehicle 40, e.g., the second rail
vehicle may be spaced apart from the first rail vehicle by plural
non-powered rail cars, such as freight cars. The first control
module 12 is operably coupled on board the first rail vehicle 14,
and the second control module 44 is operably coupled on board the
second rail vehicle 40. The first and second sensors 30, 36 are
positioned in the first rail vehicle 14, and are operably coupled
to the device interface 16 of the first control module 12. The
sensors 30, 36 output the sensor signals 28, 34, which are received
by the first control module 12. The signals relate to first and
second occupancy conditions of the first rail vehicle. For example,
the sensors may be configured to generate the signals only upon
detecting the occupancy conditions, or the sensors may generate
signals continuously but with the content of the signal indicating
whether the occupancy condition is satisfied (e.g., a first
designated voltage level indicating the occupancy condition is
satisfied, and a second designated voltage level indicating the
occupancy condition is not satisfied). The first control module 12
determines the occupancy status of the first vehicle (occupied or
not occupied) based on the signals, and may communicate the
occupancy status 42 to the second control module 44 on the second
rail vehicle. The first control module may be configured to
communicate the occupancy status 42 continuously while the first
control module is operating and receives the signals, or it may be
configured to communicate the occupancy status periodically, or it
may be configured to communicate the occupancy status only if the
occupancy status meets one or more designated criteria, such as
being indicative of a living being present in the first rail
vehicle (i.e., occupancy status=occupied). The first control module
may be configured to determine the occupancy status based on
comparing the signals 28, 34, for example: the first control module
may determine the occupancy status as occupied if both signals 28,
34 are indicative of their respective occupancy conditions being
satisfied, that is, if both signals indicate a living being present
in the rail vehicle; and the first control module may determine the
occupancy status as unoccupied, or indeterminate, if either of the
two signals is not indicative of its respective occupancy condition
being satisfied. Alternatively, the first control module 12 may be
configured to communicate signal information 38 of the signals 28,
34 to the second control module 44, for the second control module
to make a determination of occupancy status. The second control
module 44 may then generate a control signal 50 based on the
occupancy status, e.g., for alerting an operator.
[0030] The detection system may be used in situations where the
first rail vehicle 14 is part of a train or other rail vehicle
consist and is controlled for unmanned operation, e.g., as part of
a distributed power control system where a manned, lead locomotive
or other rail vehicle in a train (the second rail vehicle 40)
controls one or more unmanned, remote locomotives or other rail
vehicles in the train (the first rail vehicle 14). Here, the
detection system communicates the occupancy status of the unmanned,
first rail vehicle to the manned, second rail vehicle (or
information enabling the second rail vehicle to determine the
occupancy status), and alerts the operator(s) of the second rail
vehicle (or performs one or more other designated functions) if the
unmanned, first rail vehicle is occupied, e.g., if an intruder has
illicitly gained entry into the first rail vehicle. The detection
system may be configured such that the first control module 12 is
activated, or is only activated, when the first rail vehicle is
controlled to a mode of unmanned operation, e.g., the first rail
vehicle is controlled to operate as a remote unit in a distributed
power control system. For example, the first control module 12 may
be configured to receive a signal 54 (relative to the two sensor
signals 28, 34, the signal 54 is a third signal) indicative of
unmanned operation of the first rail vehicle, and to enter a mode
of operation of the control module 12 for determining the occupancy
status 42 or communicating the information 38 responsive to the
signal 54. The signal 54 may originate from a rail vehicle control
system of the first rail vehicle, or it may be a signal generated
responsive to a manual control input, or it may be a signal from a
distributed power system of the rail vehicle(s).
[0031] In embodiments of the detection system, with reference to
FIG. 3, the functions of the control modules 12, 44 as described
herein are integrated into a single control module 56. (The single
control module 56 may be referred to as a master control module.)
The control module 56 at least functionally includes the second
control module 44, and also at least functionally includes the
first control module 12 with the device interface 16 (for receiving
sensor signals). The device interface 16 may be configured to
provide a connection to the communication channel 48, or the
control module 56 may have a separate sub-unit for such a purpose.
The control module 56 is configured for at least two modes of
operation, in a first mode of operation, the control module 56
functions as the first control module 12 described herein, for
receiving and processing sensor signals. In a second mode of
operation, the control module 56 functions as the second control
module 44 described herein, for receiving information from a remote
or other, different rail vehicle over the communication channel 48
and generating control signals 50 responsively. (Alternatively, the
control module 56 may not have specific modes of operation, that
is, all functions are generally available, but rather the specific
functions it performs are automatically selected based on what
inputs the control module 56 receives and/or based on what other
systems the control module 56 is connected to.) The control module
56 may be configured for the mode of operation, and/or the
performed functions, to be selected based on a signal 54, received
by the control module 56, which is indicative of a current mode of
operation of the rail vehicle in which the control module 56 is
deployed, e.g., a manned mode of operation or an unmanned mode of
operation. The mode of operation, and/or the performed functions,
may also be pre-selected based on a manually set configuration of
the control module 56, such as a switch or jumper, provided as part
of the control module, which enables selecting of the particular
mode of operation.
[0032] In a transportation system, all rail vehicles in the
transportation system, or some plurality of rail vehicles in the
transportation system, may be outfitted with the master control
modules 56 and sensors 30, 36. According to one aspect, when two or
more such rail vehicles are included in a train or other rail
vehicle consist, the control module 56 on one of the rail vehicles,
such as a lead rail vehicle, is controlled to the mode of operation
of the second control module, and the control modules 56 on the
other rail vehicles, such as remote rail vehicles that are
designated for unmanned operation in the rail vehicle consist, are
controlled to the mode of operation of the first control module. In
operation, if the two sensors on any one of the remote rail
vehicles generate sensor signals indicative of respective occupancy
conditions being satisfied (e.g., occupancy status=occupied), then
information of this (e.g., the occupancy status, or signal
information of the sensor signals) is communicated to the lead rail
vehicle, for display of an operator alarm or otherwise. Thereby,
operators of a lead rail vehicle may be informed of intruder entry
into remote, unmanned rail vehicles of a train or other vehicle
consist. In embodiments, the control modules 56 are deployed on
locomotives in a transportation system,
[0033] Turning now to further detail regarding embodiments of the
sensors in the detection system, the sensors 30, 36 are operative
to detect first and second different occupancy conditions of the
first rail vehicle 14. The occupancy conditions may comprise
different indicia that a living being has entered and/or is within
the first rail vehicle 14. As used herein, "living being" means a
human or animal. As also used herein, "entry" into the rail vehicle
means that an opening/entryway (e.g., secured by a door, hatch,
window, or the like) has been enlarged or otherwise accessed such
that a living being may enter into an interior of the rail
vehicle.
[0034] In an embodiment, at least one of the sensors 30, 36
comprises a mechanically active sensor operatively coupled to an
entryway of the rail vehicle. For example, in one embodiment, one
of the sensors 30, 36 comprises a plunger assembly integrated into
door frame/door assembly or window frame/window assembly. The
plunger normally assumes an extended position, with a spring-like
resilient member maintaining the plunger at the extended position
and outside of a plunger base. The plunger assembly is integrated
into an electric circuit such that the door or window, in its
closed position, causes the plunger to be received within the
plunger assembly base, in a retracted position of the plunger,
thereby making the sensor circuit electrically open. When the door
or window assumes its open position, the plunger assumes its
extended position, thereby making the sensor circuit electrically
closed. The closed sensor circuit of the sensor 30, 36 provides a
signal 28, 34 to the device interface 16 indicating that the door
or window has assumed its open position. In this example, the
occupancy condition detected by the sensor is an access (e.g., door
or window) to a rail vehicle entryway being opened, which may be
indicative of a living being having entered the rail vehicle or
having attempted to do so.
[0035] In another embodiment, at least one of the sensors 30, 36
comprises a mechanically passive sensor operatively coupled to an
entryway of the rail vehicle. For example, in another embodiment,
the sensor comprises a capacitance gauge integrated into a door
frame/door assembly or window frame/window assembly. The
capacitance gauge comprises two plates, a first plate being
attached to the door frame or window frame and a second plate being
attached to the door or window, respectively. The sensor circuit is
integrated with the plates such that the distance between the
plates creates an electromagnetic field, with the strength of the
field correlated to the distance between the plates. Upon opening
of the entryway, the field strength changes, and the sensor relates
the change in field strength as a door or window open signal to the
device interface 16, thereby communicating entry or attempted entry
into the rail vehicle.
[0036] The detection system may comprise a combination of
difference sensor types. For example, at least one of the sensors
30, 36 may be a motion detector positioned within the cab or other
compartment/interior of the rail vehicle. The motion detector is
configured to detect movement within the interior. If movement is
detected, the motion detector outputs a signal indicative of such,
which is communicated to the device interface. Thereby, the signal
relates to an occupancy condition comprising the interior of the
rail vehicle possibly being occupied by a living being.
Alternatively or additionally, at least one of the sensors 30, 36
may be a temperature (heat) sensor configured to recognize a
departure from a recorded compartment baseline temperature (e.g., a
raise in temperature) indicative of occupancy of the rail vehicle
by a living being. Upon detecting such, the temperature sensor
outputs a sensor signal to the device interface. Alternatively or
additionally, at least one of the sensors 30, 36 may be operative
to detect an unexpected use of a rail vehicle control device (not
shown) within the rail vehicle, such as a movement of a throttle
handle or receipt of a command at an operator display (not shown)
positioned within the rail vehicle. ("Unexpected" use means a use
meeting one or more designated criteria for generating a sensor
signal indicative of an occupancy condition being satisfied, such
as manual manipulation of a control device in a rail vehicle that
is currently designated for unmanned operation.) Still further,
alternatively or additionally, at least one of the sensors may be a
gas constituent sensor positioned within the interior of the rail
vehicle and operative to detect gases or gas concentrations, such
as levels of oxygen, carbon monoxide, carbon dioxide, etc.
indicative of occupancy of the rail vehicle by a living being.
Still further, alternatively or additionally, at least one of the
sensors may comprise a pressure sensor configured to detect a
pressure/weight/force applied to an object in the rail vehicle.
Such a pressure sensor may be positioned, for example, in a seat
within the rail vehicle, in a step at a doorway threshold, in a
floor of the rail vehicle, or between a cab and frame of the rail
vehicle (e.g., increased weight in the cab actuates the sensor). In
operation, the pressure sensor outputs a sensor signal, indicative
of an occupancy condition being satisfied (e.g., living being
within the rail vehicle), upon sensing a pressure, weight, force,
etc. applied to the sensor, which is communicated to the device
interface. The pressure sensor may be configured to output a signal
(indicative of the occupancy condition being satisfied) only if the
pressure, force, weight, etc. applied to the sensor is above a
designated threshold that reflects a minimum-sized living being of
interest.
[0037] Although two sensors are shown in the embodiment of FIG. 2,
the detection system may include, on a per-rail vehicle basis, more
than two sensors (e.g., two sensors for detecting occupancy
conditions and one for detecting unauthorized use of a handheld
wireless communication device). In other embodiments of the
detection system, a rail vehicle has only one sensor (e.g., a
sensor for detecting unauthorized use of a handheld wireless
communication device).
[0038] In an embodiment, the first sensor 30 and the second sensor
36 are configured to perform different detection operations, such
that the signals output by the sensors relate to different
occupancy conditions. In one example, the first sensor 30 is
configured to detect the opening of a vehicle entryway, and the
second sensor 36 is configured to detect the potential presence of
a living being inside the rail vehicle. Upon such occurrences, the
first sensor 30 outputs a first sensor signal 28, and the second
sensor 36 outputs a second sensor signal 34. The first sensor
signal relates to a first occupancy condition (living being may
have entered rail vehicle), and the second sensor signal relates to
a second occupancy condition (living being inside rail vehicle). In
another example, both sensors 30, 36 are configured to detect the
potential presence of a living being inside the rail vehicle, with
the occupancy condition associated with one sensor comprising
detection according to one criterion, and the occupancy condition
associated with the other sensor comprising detection according to
another, different criterion (e.g., the condition for assessing
occupancy of one sensor is movement, and the other is temperature
increase). Such measurements relating to different occupancy
conditions may advantageously provide for redundancy in detecting
potential occupancy of the rail vehicle. For example, in one
embodiment, a door or window open signal without a corresponding
signal of presence of a living being within the rail vehicle would
not result in a determination that the rail vehicle is occupied,
and resultant generation of a control signal. Instead, such a
combination of sensor signals might be deemed as indicating an
unsecured entryway or the like, for example. (In which case the
system may be configured to take no control action, or take a
different action.)
[0039] In embodiments, one or more of the control modules 12, 44,
56 includes, and/or is configured to interface with, and/or is
implemented on or in conjunction with, a controller and a
communications interface. For example, with reference to FIG. 4, in
an embodiment, the master control module 56 (also applicable to
embodiments of the modules 12, 44) comprises a device interface 16
and a set of instructions 58 stored in a tangible and
non-transitory computer readable storage medium. The device
interface 16 is configured for receiving sensor signals as
described herein (e.g., the device interface may include ports or
other receptacles or other connection points for connecting
sensors). The device interface 16 is connected to a system
interface 60 on board the rail vehicle, which provides physical and
logical communication pathways between a controller 62 on board the
rail vehicle and one or more sub-systems on board the rail vehicle,
such as a communication sub-system 64. The storage medium is
accessible by the controller 62, and in one mode of operation or
otherwise, the controller 62 accesses and executes the instructions
58. The instructions 58 cause the controller 62 to control
execution of one or more of the module functions described herein,
for example, to receive sensor signals at the system interface 60
through the device interface 16, and process the signals.
[0040] The controller 62 may include a microprocessor,
microcontroller, programmable logic controller (PLC), reduced
instruction set computer (RISC), a programmable gate array (PGA),
application specific integrated circuit (AISC), and/or any other
programmable circuit. The storage medium may comprise a hard disk,
a solid-state drive, a diskette, a flash drive, a compact drive, a
digital video disk, random access memory (RAM), read-only memory
(ROM), or the like. In an embodiment, the controller 62 comprises
an integrated on-board computer (OBC) and communications management
unit (CMU) for applications hosting. One such OBC/CMU is available
under the trade name of LOCOCOMM.TM. by GE Transportation of Erie,
Pa., which provides capability for software change/upgrade for the
addition and/or modification of the detection system described
herein.
[0041] The communication unit 64 provides communications
connectivity between rail vehicles, and/or between rail vehicles
and off-board locations. For example, the communication unit 64 may
establish the communication channel 48 described herein. The
communication unit 64 may be specially provided as part of the
detection system, or it may be an existing communication unit. One
example of a suitable communication unit is a low bandwidth
trainline modem for wired communications between vehicles in
consist (e.g., locomotives coupled together in a locomotive
consist). Communications of the detection system could be carried
out with such equipment by passing signals through an existing
27-wire jumper cable (MU cable) between the first and second rail
vehicles, with occupancy status or signal information relayed from
the first rail vehicle to the second rail vehicle through at least
one of the spare wires provided in the jumper, e.g., wire number
11, 14, 18, 19, or 27 as provided in a standard jumper.
Alternatively or additionally, the communication unit could be part
of a high bandwidth intra-consist communication systems (see U.S.
Application Publication No. US2011-0099413, dated Apr. 28, 2011),
or the detection system could use communication units that are part
of a wired or wireless distributed power system for controlling
remote rail vehicles in a consist from a lead rail vehicle. An
example of the latter is the LOCOTROL.RTM. distributed power system
available from GE Transportation.
[0042] In an embodiment, for communication of the information 46
(occupancy status 42 and/or signal information 38) between rail
vehicles in a train or other consist, the control module 12 is
configured to incorporate the information into distributed power
messages that are communicated over a distributed power system of
the consist. With reference to FIG. 5, the first and second rail
vehicles 14, 40 each include a distributed power "box" or other
module 66, as part of the LOCOTROL.RTM. distributed power system
noted above or other distributed power system. The distributed
power module 66 may be existing equipment, and may include one or
more of: a communication unit for wired or wireless communications
between rail vehicles; an interface with an on-board control system
of the rail vehicle; and/or a distributed power control unit
(comprising software and/or hardware) that works in conjunction
with the communication unit and interface to carry out distributed
power operations. For example, in a lead unit (rail vehicle
designated for master control of distributed power operations), the
distributed power module 66 may generate commands, which are
transmitted to remote units (rail vehicles designated, in effect,
as distributed power slaves). The commands are generated based on a
current and/or desired operational state of the lead unit and/or
consist generally. The distributed power modules 66 of the remote
units are configured to receive the commands and communicate with
their respective on-board control systems for executing the
commands, e.g., controlling a notch level or other throttle level.
The commands may be communicated between rail vehicles as
distributed power messages 68. The distributed power system may be
otherwise configured for the communication of distributed power
messages 68. For example, remote units may periodically communicate
with the lead unit to convey status information, alarms or alerts
relating to distributed power operations, or the like. Each message
comprises a plurality of bits encoded in an electrical signal. For
example, each message may be one byte (eight bits) in length. The
content of the messages is dictated by a pre-established
distributed powder communication protocol.
[0043] The control module 12 is operably interfaced with the
distributed power module 66 on board the first rail vehicle 14.
(The control module may be operably interfaced by way of: an
intermediary connection with the vehicle's on-board control system;
a direct connection with a communication interface of the
distributed power module; or the like.) The control module 12 is
configured to control or otherwise communicate with the distributed
power module 66 to incorporate the information into the distributed
power messages 68. For example, if the distributed power
communication protocol is such that the messages 68 have a spare or
open bit 69, the control module 12 may communicate the occupancy
status using this spare bit 69, e.g., "0" designates that the
occupancy status is unoccupied, and "1" designates that the
occupancy status is occupied (or vice versa). This is shown
schematically in FIG. 5, where "X" and "O" in the table,
corresponding to sensor outputs of the sensors 30, 36, correspond
to the occupancy condition being satisfied (X) and the occupancy
condition not being satisfied (O). Thus, in this example, if the
occupancy conditions of both sensors are satisfied, a "1" is
communicated in the spare bit 69, indicating that the rail vehicle
is occupied. In the second rail vehicle 40, the second control
module 44 is configured to review the bit 69, and to take action as
described herein if the bit 69 is indicative of an occupied
status.
[0044] In another embodiment, with reference to FIG. 6, the control
modules 12, 44 are configured to otherwise communicate the
information 46 in conjunction with distributed power messages. For
example, a second byte 70 may be appended to the messages 68, with
the byte 70 containing the information 46 in a designated encoded
format. The distributed power system may be modified; if needed, to
account for the extra presence of the byte 70. Alternatively, the
byte 70 may be added to and stripped from the communications before
they are substantively processed by the distributed power system,
in a data tunneling-like operation.
[0045] As noted above, in embodiments of the system 10, 26, one or
more of the control modules 12, 44 are configured to perform one or
more designated actions upon the occurrence of a designated
condition on board a rail vehicle. In the case of the system 10 of
FIG. 1, the information 24 may be communicated to another on-board
system 72 of the rail vehicle 14, which acts responsively to the
information 24. For example, if the sensor 22 is positioned in a
designated area where handheld wireless device use is prohibited,
for detecting such use, then the information 24 may activate a
device 72 for blocking use of the handheld wireless device. In the
case of system 26 of FIG. 2, for detecting intruder occupancy
(designated condition=occupied), the designated actions may include
activating a camera 74 on the first rail vehicle (The control
module 12 may be configured to activate the camera 74 on the first
rail vehicle 14, or the control module 44 may be configured to
communicate back to the first rail vehicle 14 from the second rail
vehicle 40 for controlling the camera 74 on board the first rail
vehicle.) The camera 74 may be positioned in the area where
intruder detection is carried out (e.g., in the operator cab), for:
(i) recording activity in the area; and/or (ii) communicating
picture information (video and/or pictures) to the second rail
vehicle or to an off board location. The picture information may be
displayed on the operator interface 52 of the second rail vehicle
40, for an operator to verify the presence (or not) of an intruder.
The camera 74 may capture still pictures or video (or both), and
may record such picture information in memory accessible by the
control module(s) 12, 44. The picture information may be
time-stamped, associated with information from other rail vehicle
devices, and/or it may be redundantly stored on a rail vehicle
event recorder 76 for subsequent retrieval.
[0046] In another embodiment, a control module 12, 44 is
configured, responsive to the occurrence of a designated condition
(e.g., plural sensors outputting signals indicative of respective
occupancy conditions being satisfied), to activate one or more
intruder countermeasures. For example, the first rail vehicle 14
may have an operator interface 78 (e.g., operator controls), and
the control module 12, 44 may be configured, responsive to
detection of an intruder in the first rail vehicle (i.e., occupancy
status=occupied), to disable the operator interface, thereby
preventing the intruder from using the operator interface.
[0047] According to one aspect of the invention, upon the system
10, 26 detecting a designated condition, one or more actions of the
system are latched/held until an operator (or system element)
clears the designated condition. For example, in the case of the
system 26 in FIG. 2, if the sensors 30, 36 both output signals of
their respective occupancy conditions being satisfied, then the
control module 12 may latch communication of the information 46 to
this effect until a clearing signal is received. That is, the
control module 12 continuously transmits the information 46 (e.g.,
information indicative of intruder entry), or periodically
re-transmits the information 46, as the case may be, until a
clearing signal is received from the second control module 44. This
prevents instances where the control module 44 may "miss" the
information 46 due to it being received only once and during a time
period when the control module 44 is unable to process the
information.
[0048] FIG. 7 is a flow chart illustrating a detection method,
according to an embodiment of the invention. The method comprises,
at step 100, receiving a first output from a first sensor on board
a first rail vehicle. At step 102, a second output is received from
a second sensor on board the first rail vehicle. The method further
comprises, at step 104, communicating an occupancy status
determined based on the first output and the second output, or
communicating information of the first output and the second
output. The occupancy status or information is communicated
off-board the first rail vehicle.
[0049] In another embodiment of the method, the occupancy status or
information is communicated to a second rail vehicle. The occupancy
status or the information may be communicated to the second rail
vehicle over a communication link of a distributed power system of
the first and second rail vehicles.
[0050] In another embodiment, the method further comprises
determining the occupancy status as indicative of intruder entry
into the first rail vehicle if the first output is indicative of an
entry of the first rail vehicle being opened and if the second
output is indicative of a living being present in an interior of
the first rail vehicle.
[0051] In another embodiment of the method, the first output is
received from an entry ajar sensor, and the second output is
received from one of a motion detection sensor in an interior of
the rail vehicle, a heat sensor in the interior, an operator
control usage sensor in the interior, a gas constituent sensor in
the interior, or a pressure sensor in the interior.
[0052] With reference to FIG. 8, another embodiment of the
detection method comprises automatically alerting (step 106) an
operator on board a second rail vehicle of intruder entry into a
first rail vehicle if a first output of a first sensor on board the
first rail vehicle is indicative of an entry of the first rail
vehicle being opened (step 108) and if a second output of a second
sensor on board the first rail vehicle is indicative of a living
being present in an interior of the first rail vehicle (step 110).
In another embodiment of the detection method, the operator is
alerted only if the first output and the second output occur within
a designated time threshold of one another. In another embodiment
of the method, the method further comprises, subsequent to alerting
the operator, generating a control signal for initiating deployment
of a killer robot in the interior of the first rail vehicle.
[0053] The sensors 22, 30, 36 may be configured to operate in
various manners, depending on the configuration that is desired for
implementation. The sensors may generate continuous outputs,
periodic outputs, or may only convey information when polled by a
control module. Thus, terms such as "receiving a signal" and
"configured to generate a signal" include embodiments where a
sensor is communicated with to obtain information from the
sensor.
[0054] An embodiment relates to a detection system. The system
comprises a control module configured to be operably coupled on
board a first rail vehicle. The control module comprising a device
interface. The device interface includes a first sensor input for
receiving a first signal from a first sensor relating to a first
occupancy condition of the first rail vehicle. The device interface
includes a second sensor input for receiving a second signal from a
second sensor relating to a second occupancy condition of the first
rail vehicle. The control module is configured to at least one of:
determine an occupancy status of the first rail vehicle based on
the first and second signals, or communicate information of the
first and second signals for determination of the occupancy status
of the first rail vehicle.
[0055] In another embodiment of the detection system, the control
module is configured to receive a third signal indicative of
unmanned operation of the first rail vehicle, and to enter a mode
of operation of the control module for determining the occupancy
status or communicating the information responsive to the third
signal.
[0056] In another embodiment of the detection system, the control
module is configured to at least one of: communicate the occupancy
status to a second rail vehicle; or communicate the information of
the first and second signals to the second rail vehicle, for
determination of the occupancy status of the first rail vehicle at
the second rail vehicle.
[0057] In another embodiment of the detection system, the control
module is configured to communicate the occupancy status or the
information to the second rail vehicle over a communication channel
of a distributed power system of the first and second rail
vehicles.
[0058] In another embodiment of the detection system, the control
module is configured to: communicate a bit incorporating the first
signal and the second signal reporting the occupancy status of the
first rail vehicle to the second rail vehicle; or communicate a
byte to the second rail vehicle, the byte incorporating the
information of the first signal and the second signal.
[0059] In another embodiment of the detection system, the control
module is configured to communicate the occupancy status or the
information responsive to the first signal indicating detection of
an entryway of the first rail vehicle having been opened and the
second signal indicating detection of a living being present in an
interior of the first rail vehicle.
[0060] In another embodiment of the detection system, the control
module is configured for operable coupling with an operator
interface in the first rail vehicle. The control module is further
configured to detect a use of the operator interface that meets one
or more designated criteria. The control module is further
configured to determine the occupancy status or communicate the
information based on the use.
[0061] In another embodiment of the detection system, the control
module is configured, responsive to receiving the first and second
signals, to generate a control signal for activating a camera in an
interior of the first rail vehicle, and to receive picture
information from the camera.
[0062] In another embodiment of the detection system, the control
module is configured for operable coupling with an operator
interface in the first rail vehicle. The control module is further
configured to disable the operator interface responsive to the
occupancy status.
[0063] Another embodiment of a detection system comprises a control
module on board a first rail vehicle. The control module comprises
a device interface. The system further comprises a first sensor
connected to the device interface and configured to generate a
first signal relating to a first occupancy condition of the first
rail vehicle, and a second sensor connected to the device interface
and configured to generate a second signal relating to a second
occupancy condition of the first rail vehicle. The control module
is configured to receive the first and second signals and to at
least one of: determine an occupancy status of the first rail
vehicle based on the first and second signals, and/or communicate
information of the first and second signals for determination of
the occupancy status of the first rail vehicle.
[0064] In another embodiment of the detection system, the control
module is configured to at least one of: communicate the occupancy
status to a second rail vehicle; or communicate the information of
the first and second signals to the second rail vehicle, for
determination of the occupancy status of the first rail vehicle at
the second rail vehicle.
[0065] In another embodiment of the detection system, the control
module is configured to communicate the occupancy status or the
information to the second rail vehicle over a communication link of
a distributed power system of the first and second rail
vehicles.
[0066] In another embodiment of the detection system, the control
module is configured to: communicate a bit incorporating the first
signal and the second signal reporting the occupancy status of the
first rail vehicle to the second rail vehicle; or communicate a
byte to the second rail vehicle, the byte incorporating the
information of the first signal and the second signal.
[0067] In another embodiment of the detection system, the first
sensor is configured to generate the first signal responsive to an
entryway of the first rail vehicle being opened, and the second
sensor is configured to generate the second signal responsive to
detecting presence of a living being in an interior of the first
rail vehicle.
[0068] In another embodiment of the detection system, the first
sensor is an entry ajar sensor operatively coupled to the entryway
of the first rail vehicle, and the second sensor is one of a motion
detection sensor in an interior of the first rail vehicle, a heat
sensor in the interior, an operator control usage sensor in the
interior, a gas constituent sensor in the interior, or a pressure
sensor in the interior.
[0069] In another embodiment of the detection system, the system
further comprises a camera operably coupled to the control module
and configured to capture picture information of an interior of the
first rail vehicle. The control module is configured to activate
the camera to capture the picture information based on the
occupancy status. In another embodiment of the detection system,
the camera and/or the control module is configured to store the
picture information and to time stamp the picture information.
[0070] In another embodiment of the detection system, the camera
and/or the control module is configured to control redundantly
storing the picture information on a rail vehicle event
recorder.
[0071] In another embodiment of the detection system, the control
module is configured to disable an operator interface of the first
rail vehicle responsive to the occupancy status.
[0072] In another embodiment of the detection system, the control
module is configured to enter a mode of operation of the control
module for determining the occupancy or communicating the
information responsive to the first rail vehicle being controlled
for unmanned operation.
[0073] Another embodiment relates to a detection system. The system
comprises a control module configured to be operably coupled on
board a second rail vehicle. The control module is configured to:
receive information from a first rail vehicle over a communication
channel linking the first rail vehicle and the second rail vehicle;
and generate a control signal based on the information, wherein the
information is indicative of intruder entry into the first rail
vehicle or allows the control module to determine the intruder
entry into the first rail vehicle.
[0074] In another embodiment of the detection system, the system
further comprises an operator interface. The control module is
configured to communicate the control signal to the operator
interface, and the operator interface is configured to display an
operator alert of the intruder entry responsive to the control
signal.
[0075] In another embodiment of the detection system, the
communication channel is a communication channel of a distributed
power system of the first and second rail vehicles.
[0076] Another embodiment relates to a detection system. The system
comprises a control module configured to be operably coupled on
board a first locomotive. The control module comprising a device
interface. The device interface includes a first sensor input for
receiving a first signal from a first sensor relating to detecting
a first designated condition in an operator cab of the first
locomotive. The control module is configured, responsive to
receiving the first signal, to communicate information relating to
the first signal to a second locomotive or to an off-board
location.
[0077] In another embodiment of the detection system, the control
module is configured to communicate the information responsive to
the first signal being indicative of the first sensor detecting use
of a handheld wireless device in the operator cab.
[0078] In another embodiment of the detection system, the device
interface includes a second sensor input for receiving a second
signal from a second sensor relating to detecting a second
designated condition in the operator cab of the first locomotive.
The control module is configured to communicate the information,
the information relating to the first signal and the second signal,
responsive to the first signal indicating detection of a first
occupancy condition of the operator cab by the first sensor and the
second signal indicating detection of a different, second occupancy
condition of the operator cab by the second sensor.
[0079] Another embodiment relates to a detection system. The system
comprises a control module configured to be operably coupled on
board a rail vehicle. The control module comprising a device
interface. The device interface includes a sensor input for
receiving a signal from a sensor. The control module is further
configured, responsive to the signal indicating use of a hand-held
wireless communication device in the rail vehicle, to at least one
of: store information relating to the signal on board the rail
vehicle; communicate the information to an off-board recipient; or
activate a device to prevent the wireless communications.
[0080] In another embodiment of the detection system, the control
module is configured to store the information, communicate the
information, or activate the device responsive to the signal
indicating use of the hand-held wireless communication device in an
area of the rail vehicle where using hand-held wireless devices for
wireless communications is prohibited. The rail vehicle comprises a
locomotive and the area comprises an operator cab of the
locomotive.
[0081] In another embodiment of the detection system, the
information relating to the signal comprises at least one of a time
of day when the wireless communication device was used or a
duration of how long the wireless communication device was
used.
[0082] Another embodiment relates to a detection method. The method
comprises receiving a first output from a first sensor on board the
first rail vehicle, receiving a second output from a second sensor
on board the first rail vehicle, and communicating an occupancy
status determined based on the first output and the second output,
or communicating information of the first output and the second
output. The occupancy status or information is communicated
off-board the first rail vehicle.
[0083] In another embodiment of the method, the occupancy status or
information is communicated to a second rail vehicle.
[0084] In another embodiment of the method, the occupancy status or
the information is communicated to the second rail vehicle over a
communication link of a distributed power system of the first and
second rail vehicles.
[0085] In another embodiment of the method, the method further
comprises determining the occupancy status as indicative of
intruder entry into the first rail vehicle if the first output is
indicative of an entry of the first rail vehicle being opened and
if the second output is indicative of a living being present in an
interior of the first rail vehicle.
[0086] In another embodiment of the method, the first output is
received from an entry ajar sensor, and the second output is
received from one of a motion detection sensor in an interior of
the rail vehicle, a heat sensor in the interior, an operator
control usage sensor in the interior, a gas constituent sensor in
the interior, or a pressure sensor in the interior.
[0087] Another embodiment relates to a detection method. The method
comprises automatically alerting an operator on board a second rail
vehicle of intruder entry into a first rail vehicle if a first
output of a first sensor on board the first rail vehicle is
indicative of an entry of the first rail vehicle being opened and
if a second output of a second sensor on board the first rail
vehicle is indicative of a living being present in an interior of
the first rail vehicle.
[0088] In another embodiment of the method, the operator is alerted
only if the first output and the second output occur within a
designated time threshold of one another.
[0089] In another embodiment of the method, the method further
comprises, subsequent to alerting the operator, generating a
control signal for initiating deployment of a killer robot in the
interior of the first rail vehicle.
[0090] It is to be understood that the above description is
intended to be illustrative, and not restrictive. For example, the
above-described embodiments (and/or aspects thereof) may be used in
combination with each other. In addition, many modifications may be
made to adapt a particular situation or material to the teachings
of the inventive subject matter without departing from its scope.
While the dimensions and types of materials described herein are
intended to define the parameters of the inventive subject matter,
they are by no means limiting and are exemplary embodiments. Many
other embodiments will be apparent to one of ordinary skill in the
art upon reviewing the above description. The scope of the
inventive subject, matter should, therefore, be determined with
reference to the appended claims, along with the full scope of
equivalents to which such claims are entitled. In the appended
claims, the terms "including" and "in which" are used as the
plain-English equivalents of the respective terms "comprising" and
"wherein." Moreover, in the following claims, the terms "first."
"second," and "third," etc. are used merely as labels, and are not
intended to impose numerical requirements on their objects.
Further, the limitations of the following claims are not written in
means-plus-function format and are not intended to be interpreted
based on 35 U.S.C. .sctn.112, sixth paragraph, unless and until
such claim limitations expressly use the phrase "means for"
followed by a statement of function void of further structure.
[0091] This written description uses examples to disclose several
embodiments of the inventive subject matter, including the best
mode, and also to enable one of ordinary skill in the art to
practice the embodiments of inventive subject matter, including
making and using any devices or systems and performing any
incorporated methods. The patentable scope of the inventive subject
matter is defined by the claims, and may include other examples
that occur to one of ordinary skill in the art. Such other examples
are intended to be within the scope of the claims if they have
structural elements that do not differ from the literal language of
the claims, or if they include equivalent structural elements with
insubstantial differences from the literal languages of the
claims.
[0092] The foregoing description of certain embodiments of the
present inventive subject matter will be better understood when
read in conjunction with the appended drawings. To the extent that
the figures illustrate diagrams of the functional blocks of various
embodiments, the functional blocks are not necessarily indicative
of the division between hardware circuitry. Thus, for example, one
or more of the functional blocks (for example, controllers or
memories) may be implemented in a single piece of hardware (for
example, a general purpose signal processor, microcontroller,
random access memory, hard disk, and the like). Similarly, the
programs may be stand alone programs, may be incorporated as
subroutines in an operating system, may be functions in an
installed software package, and the like. The various embodiments
are not limited to the arrangements and instrumentality shown in
the drawings.
[0093] As used herein, an element or step recited in the singular
and proceeded with the word "a" or "an" should be understood as not
excluding plural of said elements or steps, unless such exclusion
is explicitly stated. Furthermore, references to "one embodiment"
of the present invention are not intended to be interpreted as
excluding the existence of additional embodiments that also
incorporate the recited features. Moreover, unless explicitly
stated to the contrary, embodiments "comprising," "comprises,"
"including," "includes." "having," or "has" an element or a
plurality of elements having a particular property may include
additional such elements not having that property.
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