Technical Field
[0001] The present invention relates to a state-monitoring device, a state-monitoring system,
and an organization train.
Background Art
[0002] JP-A-2013-164869 (PTL 1) is an example of the background art of the present technical field. The public
information discloses a problem of "providing a drive recorder that is able to detect
an accident with good precision without determination mistakes due to noise and disturbance
and able to make a determination appropriate to specifications of the vehicle, running
habits, road conditions, and road surface conditions" (refer to PTL 1 (paragraph [0007])),
as means for solving the problem, "the drive recorder is provided with a camera installed
in a vehicle, an acceleration sensor that is able to detect acceleration of at least
two axes of the front/rear and left/right of the vehicle, and storage means for storing
an image captured by the camera and acceleration that is detected by the acceleration
sensor, in which a condition is set in which the acceleration that is detected by
the acceleration sensor exceeds a predetermined threshold in a fixed time, when the
condition is fulfilled, an image is captured in a predetermined time, a file that
includes the time at which the condition is fulfilled and image information which
is captured within the predetermined time is generated and stored in the storage means,
and the fixed time is modifiable by a user designating a number of times the acceleration
that is detected by a predetermined sampling cycle continuously exceeds the threshold"
(refer to PTL 1 (paragraph [0008])), and the like.
[0003] EP-A-2436574 (PTL 2) proposes a state monitoring apparatus of a railway car based on a sensor
signal acquired from a sensor and vehicle positional information. The apparatus has:
filtering, RMS computing and amplitude ratio computing sections that detect the sensor
signal; a threshold determination section that determines if the sensor signal exceeds
a threshold; and a failure determination section and a determination result output
section which receives the vehicle positional information and the determination result
and measures how often the threshold is exceeded.
[0004] WO 2015/100425 (PTL 3) proposes a system for detecting operational anomalies in train consists and
railcars.
[0005] WO 00/70148 (PTL 4) proposes track monitoring equipment Citation List
Patent Literature
Summary of Invention
Technical Problem
[0007] However, a technique in which a predetermined location or position is automatically
recorded regardless of any sensor signal for preventive maintenance based on the characteristic
sensor signal that is generated at the predetermined location or section is not disclosed
in PTL 1, and there is room for improvement of efficiency of work such as an operation
or maintenance.
Solution to Problem
[0008] In order to solve the problem described above, according to an aspect of the present
invention, there is provided a state-monitoring device that performs state monitoring
of a vehicle based on, for example, a sensor signal acquired from a sensor that is
mounted in the vehicle and positional information of the vehicle that is acquired
from a vehicle information control device, the state-monitoring device is configured
to have a sensor signal detecting portion that detects the sensor signal, a sensor
signal threshold determination processing portion that determines whether or not the
sensor signal exceeds a predetermined threshold, a sensor signal threshold exceeding
section management portion that inputs positional information of the vehicle and a
determination result by the sensor signal threshold determination processing portion
and measures the number of times that the threshold is exceeded within a predetermined
section, and an automatic recording section management portion that determines whether
or not the number of times that the threshold is exceeded within the predetermined
section exceeds the predetermined number of times and sets the predetermined section
as an automatic recording section in which data recording is automatically performed
in a case where the number of times that the threshold is exceeded exceeds the predetermined
number of times.
Advantageous Effects of Invention
[0009] According to the present invention, it is possible to provide a state-monitoring
system that is able to make work such as an operation or maintenance efficient.
Brief Description of Drawings
[0010]
[Fig. 1] Fig. 1 is a configuration example of the entirety of a state-monitoring system
of a railway vehicle of Embodiment 1.
[Fig. 2] Fig. 2 is a configuration example of a hardware system of a state-monitoring
device illustrated in Fig. 1.
[Fig. 3] Fig. 3 is an example of a system configuration that detects the sensor signal
in a predetermined section in the entirety of the configuration diagram illustrated
in Fig. 1.
[Fig. 4] Fig. 4 is an example of the flow of the state-monitoring system illustrated
in Fig. 1.
[Fig. 5] Fig. 5 is an example of a sensor signal threshold determination process illustrated
in Fig. 3.
[Fig. 6] Fig. 6 is an example of a process of a sensor signal threshold exceeding
section management portion and a vehicle positional information threshold determination
process portion illustrated in Fig. 3.
[Fig. 7] Fig. 7 is an example of a state display result of the state-monitoring system
illustrated in Fig. 1.
[Fig. 8] Fig. 8 is an example of a trend display result of the state display result
illustrated in Fig. 7.
[Fig. 9] Fig. 9 is a configuration example of the entirety of a state-monitoring system
of the railway vehicle of Embodiment 2.
[Fig. 10] Fig. 10 is a configuration diagram of a system that detects the sensor signal
in a predetermined section in the entirety of the configuration diagram illustrated
in Fig. 9.
[Fig. 11] Fig. 11 is a configuration example of the entirety of a state-monitoring
system of the railway vehicle of Embodiment 3.
Description of Embodiments
[0011] In a mobile system (elevator, motor vehicle, and the like) including a railway vehicle
or a plant system (wind power generation, nuclear power generation, and the like)
including a thermal power plant, there is demand to promote improvement of work and
increasing efficiency of work such as an operation or maintenance in each system by
communicating, accumulating, and analyzing a large amount of data from various sensor
signals and the like that are equipped in each system.
[0012] In the present embodiment, it is possible to provide a state-monitoring system of
a railway vehicle that it is possible to construct using a simple system configuration,
and it is possible to provide a system in which a predetermined location or position
is automatically recorded regardless of any sensor signal for preventive maintenance
based on the characteristic sensor signal that is generated at the predetermined location
or section.
[0013] An embodiment is described below with reference to the drawings. Note that, in each
diagram, the same numbers are given to constituent elements that have common functions,
and overlapping explanation is omitted.
Embodiment 1
[0014] First, the configuration of the entirety of the system in the present embodiment
is described using Fig. 1. In Fig. 1, information transmitted to a vehicle information
control device 5 from various devices (door 3, underfloor device 4, and the like)
including a state-monitoring device 2 that is attached to a railway vehicle 1 is accumulated
in a database 8 of a ground-side monitoring system 6 via the railway vehicle 1 and
a wireless transmission device 7 that is installed at the ground side. The ground-side
monitoring system 6 is constituted by a personal computer 9, an analysis device 10,
and the database 8 via a network 11. In addition, the ground-side monitoring system
6 acquires information from a plurality of vehicles.
[0015] An example in which the personal computer 9, the analysis device 10, and the database
8 are separate bodies is indicated, but the entirety or a part may be constituted
by one device. For example, the function that is realized by the personal computer
9 and the analysis device 10 may be realized by one device.
[0016] The state-monitoring device 2 is able to input various sensor signals with respect
to state-monitoring items that are required by the respective railway vehicles 1,
in Fig. 1, a vibration acceleration sensor 12 that is installed in the floor of a
vehicle body 13 for the purpose of ride comfort monitoring of the railway vehicle
1 as a wired connection example, but the vibration acceleration sensor 12 may be installed
in a carriage 14 of the railway vehicle 1 for the purpose of monitoring abnormalities
of track infrastructure or carriage parts. Furthermore, a microphone for noise measurement
may be installed in the vehicle body 13 or the carriage 14 of the railway vehicle
1 for the purpose of monitoring abnormalities of interior and exterior noise of the
railway vehicle 1. Furthermore, a strain sensor may be installed in the vehicle body
13 or the carriage 14 of the railway vehicle 1 for the purpose of monitoring deterioration
of the railway vehicle 1. In addition, various sensors and the state-monitoring device
2 may use wireless transmission.
[0017] Note that, an example in which information is acquired from the railway vehicle is
indicated in Fig. 1, but for example, a mobile system other than the railway vehicle
(motor vehicle, elevator, and the like) or a plant system (thermal power generation,
wind power generation, nuclear power generation, and the like), may be constituted
so as to acquire information from other than the railway vehicle.
[0018] Next, a configuration example of a hardware system of the state-monitoring device
2 of Fig. 1 will be described using Fig. 2.
[0019] The state-monitoring device 2 is constituted by a processor 30, a switch 31, a display
portion 32, and a setting portion 40, and the processor 30 is constituted by a central
processing unit (CPU) 33, an interface 34, a random access memory (RAM) 35, a read
only memory (ROM) 36, and a card connector 37. The CPU 33 of the processor 30 is connected
to the interface 34, the RAM 35, the ROM 36, and the card connector 37 via a bus 38,
and the card connector 37 is connected to a memory card 39. The interface 34 is connected
to the switch 31, the display portion 32, the setting portion 40, various sensors
including the vibration acceleration sensor 12, and the vehicle information control
device 5. Note that, various sensors including the vibration acceleration sensor 12
may be installed inside the state-monitoring device 2. Furthermore, the state-monitoring
device 2 may be configured as a part of the vehicle information control device 5.
In addition, the switch 31, the display portion 32, and the setting portion 40 may
be installed on the front surface of the state-monitoring device 2. In addition, the
memory card 39 that is connected to the card connector 37 may be directly taken out
from the front surface of the state-monitoring device 2.
[0020] Next, a configuration diagram of the state-monitoring system of a railway vehicle
that is realized by the state-monitoring device of Fig. 2 will be described using
Fig. 3. Here, a sensor that is connected to the state-monitoring device 2 is set as
the vibration acceleration sensor 12. In Fig. 3, a vibration acceleration sensor signal
100a that is detected by the vibration acceleration sensor 12 is output to a sensor
signal detecting portion 50 of the state-monitoring device 2.
[0021] The sensor signal detecting portion 50 converts the vibration acceleration sensor
signal 100a to a digital sensor signal 101a and outputs the signal to a sensor signal
threshold determination processing portion 51 and a data transmission and recording
processing portion 54.
[0022] The sensor signal threshold determination processing portion 51 determines whether
or not the sensor signal threshold that is set in advance is exceeded with respect
to the digital sensor signal 101a, then a sensor signal threshold determination process
result 102a is output to a sensor signal threshold exceeding section management portion
52 and the data transmission and recording processing portion 54.
[0023] The sensor signal threshold exceeding section management portion 52 inputs the sensor
signal threshold determination process result 102a and a vehicle positioning signal
104a of the vehicle information control device 5, counts the number of times the sensor
signal threshold is exceeded at a predetermined section, location, or position based
on the vehicle positioning signal 104a, and outputs a number of times the sensor signal
threshold is exceeded 105a to a vehicle positional information threshold determination
process portion 53. Note that, preferably the vehicle information control device 5
acquires detection information according to a track circuit or positional information
of the vehicle using wireless communication and the like with a ground device.
[0024] The vehicle positional information threshold determination process portion 53 inputs
the number of times the sensor signal threshold is exceeded 105a and the vehicle positioning
signal 104a, and determines whether or not the number of times the sensor signal threshold
is exceeded 105a exceeds the threshold number of times of exceeding that is set in
advance, then a determination process result 106a is output to the data transmission
and recording processing portion 54.
[0025] The data transmission and recording processing portion 54 inputs the determination
process results 102a and 106a and the digital sensor signal 101a and outputs the digital
sensor signal 101a to the vehicle information control device 5 based on the sensor
signal threshold determination process result 102a and the determination process result
106a. Furthermore, the data transmission and recording processing portion 54 inputs
a vehicle information signal 107a of the vehicle information control device 5 and
records the digital sensor signal 101a and the vehicle information signal 107a based
on the determination process results 102a and 106a in the memory card 39 of the state-monitoring
device 2. In addition, the data transmission and recording processing portion 54 is
installed on the ground side, and may be provided with means for transmitting the
determination process result 106a or the digital sensor signal 101a and the vehicle
information signal 107a to the ground-side device by wireless communication. In that
case, it is possible to reduce cost or a space in which the data transmission and
recording processing portion 54 or the memory card 39 is installed on the pick-up
side. In addition, it is possible to reduce the processing costs while running by
performing the data transmission and recording while the vehicle is stopped and is
particularly favorable to perform while the vehicle stopped in a station or a vehicle
maintenance base for the railway operation.
[0026] In this manner, it may be possible to set and manage an automatic recording section
in which data is automatically recorded as described later by the vehicle positional
information threshold determination process portion 53 and the data transmission and
recording processing portion 54, and two portions may be combined and called an automatic
recording section management portion.
[0027] Note that, the vehicle positioning signal 104a preferably applies station information
(for example, a unique station code assigned to each station), kilometer information
that indicates a running distance, a global positioning system (GPS) signal, or the
like. In addition, preferably the vehicle information signal 107a selects items such
as vehicle running velocity information, GPS information, or the like that is necessary
in a detailed analysis of the digital sensor signal 101a. Note that, the sensor signal
threshold determination processing portion 51 may be configured as a system that outputs
an alarm signal to the vehicle information control device 5 and outputs the alarm
signal to the personal computer 9 of the ground-side monitoring system 6 in a case
where it is determined that the sensor signal threshold that is set in advance is
exceeded with respect to the digital sensor signal 101a. Furthermore, the vehicle
positional information threshold determination process portion 53 may be configured
as a system that outputs an automatic recording start signal to the vehicle information
control device 5 and outputs the signal to the personal computer 9 of the ground-side
monitoring system 6 in a case where it is determined that the number of times the
threshold is exceeded that is set in advance is exceeded with respect to the number
of times the sensor signal threshold is exceeded 105a.
[0028] Next, a state-monitoring flow of a railway vehicle will be described using a flow
diagram in Fig. 4. First, a state-monitoring system power on process 200 is executed,
and device error confirmation of each device including the state-monitoring device
2 (vehicle information control device 5 and the like) or initial setting 201 of a
threshold parameter reading process, or the like is executed. After the initial setting
201 ends, a detection process 202 of the sensor signal and the vehicle positional
information is executed, a threshold determination process 203 is executed with respect
to the sensor signal, and it is determined whether the threshold is exceeded (204).
In a case where the threshold is exceeded, a recording and transmission process 205
of the sensor signal that exceeds the threshold is executed. Furthermore, a status
start-up process exceeding the threshold 206 is executed, and a status of threshold
exceeded is set to ON.
[0029] Next, an ON/OFF determination process 207 of status of threshold exceeded is executed.
In a case where the status of threshold exceeded is set to ON, a status stand-down
process exceeding the threshold 208 is executed, and furthermore, a determination
process 209 is executed of whether or not current vehicle positional information that
is acquired from the vehicle information control device 5 is already present in the
sensor signal threshold exceeding section. Here, a counter update process exceeding
the sensor signal threshold 210 is executed in a case where the current vehicle positional
information that is acquired from the vehicle information control device 5 is already
present in the sensor signal threshold exceeding section. A section generation process
exceeding the sensor signal threshold 211 is newly executed in a case where the current
vehicle positional information that is acquired from the vehicle information control
device 5 is not present in the sensor signal threshold exceeding section. Next, a
determination process 212 is executed of whether the number of times the threshold
is exceeded that is set in advance by the counter exceeding the sensor signal threshold,
and the current vehicle positional information is set to an automatic recording section
as an automatic recording section setting process 213 in a case where the threshold
is exceeded.
[0030] Next, a determination process 214 is executed of whether or not the current vehicle
positional information that is acquired from the vehicle information control device
5 is present in the automatic recording section. Here, a recording transmission process
215 of the sensor signal for automatic recording is executed in a case where the current
vehicle positional information that is acquired from the vehicle information control
device 5 is present in the automatic recording section. For example, it is preferable
to compare automatic recording section information that is set by the vehicle positional
information threshold determination process portion 53 and positional information
that is acquired from the vehicle information control device 5, and permit data transmission
to the data transmission and recording processing portion 54 in a case where the sets
of information match. Next, a series of subsequent processes of the process 202 are
repeatedly executed until a state-monitoring system power source disconnection process
217 is executed. Note that, an update process such as a current parameter is executed
and the system is disconnected in a case where the state-monitoring system power source
disconnection process 217 is executed.
[0031] Next, the sensor signal threshold determination process will be described using an
example of a vibration acceleration sensor signal waveform in Fig. 5. A vibration
acceleration waveform 60 is represented by a position in the horizontal axis and acceleration
in the vertical axis, and includes an exceptionally large vibration generation section
63. Here, in the sensor signal threshold determination process, a vibration acceleration
threshold 61 and a vibration acceleration threshold exceeding time 62 are set in advance.
First, the sensor signal threshold determination process detects an exceeding point
at which the vibration acceleration waveform 60 initially exceeded the vibration acceleration
threshold 61. Next, the sensor signal threshold determination process determines whether
the vibration acceleration waveform 60 exceeds the vibration acceleration threshold
exceeding time 62 with reference to the exceeding point of the vibration acceleration
threshold 61 and outputs a threshold exceeding determination process result 102a in
a case where the time is exceeded.
[0032] Next, each management and processing method of the sensor signal threshold exceeding
section management portion 52, the vehicle positional information threshold determination
process portion 53, and the data transmission and recording processing portion 54
using a vibration acceleration sensor signal waveform example, an example of the number
of times the sensor signal threshold is exceeded, a vehicle positional information
example, and a data recording transmission propriety signal example of Fig. 6 will
be described. Fig. 6 indicates a vibration acceleration sensor signal waveform 71,
a number of times the threshold of the sensor signal is exceeded 72 between stations
A-B, a number of times the threshold of the sensor signal is exceeded 73 between stations
C-D, a station code 76 that is vehicle positional information, and a data recording
transmission propriety signal 74 as positions on the horizontal axis when the railway
vehicle 1 repeatedly passes through station A, station B, station C, and station D
as station 70 three times. Here, the vibration acceleration sensor signal waveform
includes exceptional vibration acceleration 75 that is detected as exceeding the threshold
using the sensor signal threshold determination processing portion 51 between the
stations A-B and between the stations C-D of the first time, between the stations
A-B and between the stations C-D of the second time, and between the stations C-D
of the third time. First, the sensor signal threshold exceeding section management
portion 52 counts the number of times the threshold of the sensor signal is exceeded
72 between the stations A-B on the basis of the station code 76 that is vehicle positional
information by the exceptional vibration acceleration 75 that is generated between
the stations A-B. Furthermore, the exceptional vibration acceleration 75 is recorded
on the memory card 39 and is transmitted to the vehicle information control device
5 by the data transmission and recording processing portion 54 switching the data
recording transmission propriety signal 74 from OFF to ON. Next, the sensor signal
threshold exceeding section management portion 52 counts the number of times the threshold
of the sensor signal is exceeded 73 between the stations C-D on the basis of the station
code 76 by the exceptional vibration acceleration 75 that is generated between the
stations C-D. The data recording and transmission process by the data transmission
and recording processing portion 54 at this time is described above.
[0033] Next, the sensor signal threshold exceeding section management portion 52 counts
each of the number of times the threshold of the sensor signal is exceeded 72 between
the stations A-B and the number of times the threshold of the sensor signal is exceeded
73 between the stations C-D on the basis of the station code 76 by the exceptional
vibration acceleration 75 that is generated between the stations A-B and between the
stations C-D when running inter-section in the second time. Here, in a case where
the number of times the threshold of the sensor signal is exceeded is set in advance
to 2, the number of times the threshold of the sensor signal is exceeded 72 between
the stations A-B and the number of times the threshold of the sensor signal is exceeded
73 between the stations C-D are determined to exceed the threshold, and the station
code 76 between the stations A-B and the station code 76 between the stations C-D
are automatically set as automatic recording section targets.
[0034] Next, since the threshold exceeding vibration acceleration 75 between the stations
A-B is not confirmed when running inter-section in the third time, but is already
set as the automatic recording section target, the vibration acceleration sensor signal
waveform 71 is recorded on the memory card 39 and is transmitted to the vehicle information
control device 5 by the data transmission and recording processing portion 54 switching
the data recording transmission propriety signal 74 from OFF to ON regardless of whether
a threshold exceeding vibration acceleration 75 is generated. In addition, the threshold
exceeding vibration acceleration 75 between the stations C-D is confirmed, but the
vibration acceleration sensor signal waveform 71 is recorded on the memory card 39
and is transmitted to the vehicle information control device 5 by the data transmission
and recording processing portion 54 switching the data recording transmission propriety
signal 74 from OFF to ON in the same manner as the automatic recording of the vibration
acceleration between the stations A-B described above. By doing so, the recording
section is automatically generated on the basis of the number of times the threshold
is exceeded 72 between the stations A-B, the number of times the threshold is exceeded
73 between the stations C-D and the station code 76. Note that, preferably the maximum
number of the number of times that the threshold is exceeded is selected according
to the memory of the state-monitoring device 2.
[0035] In addition, other than the station code 76, kilometer information that indicates
a running distance, a GPS signal, and the like may be applied. Furthermore, it is
possible to carry out threshold determination process of a vehicle running velocity
with respect to the station code 76 in a case where only the vibration acceleration
sensor during running is set as the target.
[0036] In addition, a method of manually releasing from a setting portion 40 of the state-monitoring
device 2 or the ground-side monitoring system 6 may be set as the release method of
the automatic recording section. Furthermore, a method may be set for automatically
releasing from the automatic recording section in a case where the threshold exceeding
vibration acceleration 75 is not detected in the time or running distance set in advance.
[0037] Next, a display method of recording data will be described using a display screen
in Fig. 7. Fig. 7 is a diagram that indicates the position on the horizontal axis
and time on the vertical axis, and visualizes a vibration generation state between
position A and position B.
[0038] Here, as an example of vibration acceleration, a gray value of a vibration acceleration
distribution 80 is expressed in Fig. 7 as a size of the vibration acceleration level.
As illustrated in Fig. 7, when the vibration acceleration level increases, the gray
value of the vibration acceleration distribution 80 becomes higher step by step so
as to indicate vibration acceleration distributions 81, 82, and 83, and it is possible
to visually ascertain whether some vibration acceleration level is changed in some
section. In addition, in the manner of vibration acceleration 84, the vibration acceleration
level may be expressed as a size of an illustration of a circle or the like. In addition,
it is possible to ascertain a trend of the time indicated on the horizontal axis and
the acceleration indicated on the vertical axis as shown in Fig. 8 by carrying out
a trend analysis range specification 85 when ascertaining a tendency of a specific
vibration acceleration level 90. Note that, the displays are not only position or
time, and may apply a restriction using vehicle velocity and the like.
[0039] A case of applying to the railway vehicle is described in the present embodiment,
but it is possible to apply to a general moving body such that a monorail, an automobile,
or the like runs at a specific position or location.
[0040] As above, according to the present embodiment, it is possible to provide a system
in which a predetermined location or position is automatically recorded regardless
of any sensor signal for preventive maintenance based on the characteristic sensor
signal that is generated at the predetermined location or section without always recording
and transmitting a large sensor signal of data capacity, improve vehicle operation
reliability, and improve efficiency of vehicle maintenance work.
Embodiment 2
[0041] Fig. 9 illustrates an example of a state-monitoring system of a railway vehicle of
Embodiment 2. In the system configuration diagram in Fig. 9, an additional point with
respect to the system configuration diagram in Fig. 1 will be described. First, in
Fig. 9, a railway vehicle 20 is added as well as the railway vehicle 1, and a gangway
21 is installed in the railway vehicle 1 and the railway vehicle 20. A state-monitoring
device 2' and a vibration acceleration sensor 12' are installed in the railway vehicle
20, and the sensor signal of the vibration acceleration sensor 12' is input to the
state-monitoring device 2'.
[0042] Next, a configuration diagram of the state-monitoring system of a railway vehicle
that is realized by the state-monitoring device of Fig. 9 will be described using
Fig. 10. In the system configuration diagram in Fig. 10, an additional point with
respect to the system configuration diagram in Fig. 3 will be described. First, here
a sensor that is connected to the state-monitoring device 2' which is set in the railway
vehicle 20 is set as the vibration acceleration sensor 12'. A sensor signal threshold
exceeding section management portion 52' inputs the vehicle positioning signal 104a
of the vehicle information control device 5 via the state-monitoring device 2, counts
the number of times the sensor signal threshold is exceeded at a predetermined section,
location, or position based on the vehicle positioning signal 104a, and outputs a
number of times the sensor signal threshold is exceeded 105a' to a vehicle positional
information threshold determination process portion 53'. The vehicle positional information
threshold determination process portion 53' inputs the vehicle positioning signal
104a of the vehicle information control device 5 via the state-monitoring device 2,
and determines whether or not the number of times the sensor signal threshold is exceeded
105a' exceeds the threshold number of times of exceeding that is set in advance, then
a determination process result 106a' is output to a data transmission and recording
processing portion 54'. Furthermore, the vehicle positional information threshold
determination process portions 53 and 53' respectively communicate an automatic recording
section signal 110a that indicates the automatic recording locations, shares the automatic
recording section that is set by each railway vehicle 1 and 20 and automatically executes
data recording and transmission. Note that, the state-monitoring device 2' may have
a system configuration that connects to the state-monitoring device 2 via the vehicle
information control device 5. In addition, preferably the same system configuration
is set even if the number of the railway vehicles 20 is raised.
[0043] Furthermore, the number of times that the threshold is exceeded may be shared between
the sensor signal threshold exceeding section management portions 52 and 52' and the
automatic recording location may be determined.
[0044] As above, according to the present embodiment, it is possible to provide an automatic
recording system that captures a characteristic sensor signal that is generated by
each vehicle and a change over time thereof by sharing the predetermined data recording
location and section that are respectively detected and set between a plurality of
vehicles with different vehicle characteristics between vehicles in an organization
train, improve vehicle operation reliability, and improve efficiency of vehicle maintenance
work.
Embodiment 3
[0045] Fig. 11 illustrates an example of a state-monitoring system of a railway vehicle
of Embodiment 3. In the system configuration diagram in Fig. 11, an additional point
with respect to the system configuration diagram in Fig. 1 will be described. First,
in Fig. 11, railway vehicles 1' and 1'' are added as well as the railway vehicle 1,
and transmission information of each railway vehicle is accumulated in the database
8 of the ground-side monitoring system 6 via wireless transmission devices 7, 7',
and 7'' and the wireless transmission device 7 on the ground side. Next, the ground-side
monitoring system 6 is connected to a threshold management update device 150 via the
network 11. The threshold management update device 150 centrally manages the number
of times the sensor signal threshold is exceeded and the automatic recording section
of each railway vehicle 1, 1', and 1'', and for example, sets and updates the transmission
information which relates to the shared number of times the sensor signal threshold
is exceeded and the automatic recording section of each railway vehicle 1, 1' , and
1'' to state-monitoring devices 2, 2' , and 2' ' . Note that, there may be a system
configuration in which threshold management updating is carried out between the wireless
transmission device 7, the wireless transmission device 7' , and the wireless transmission
device 7'' not through the ground-side monitoring system 6. In addition, preferably
the same system configuration is set even if the number of railway vehicles 1 is raised.
[0046] As above, according to the present embodiment, it is possible to provide an automatic
recording system that captures a characteristic sensor signal between each of a plurality
of compositions and a change over time thereof by sharing the predetermined data recording
location and section that are respectively detected and set between the plurality
of compositions with different vehicle operation states or vehicle maintenance states,
improve vehicle operation reliability, and improve efficiency of vehicle maintenance
work.
Reference Signs List
[0047]
1 RAILWAY VEHICLE
2 STATE-MONITORING DEVICE
3 DOOR
4 UNDERFLOOR DEVICE
5 VEHICLE INFORMATION CONTROL DEVICE
6 GROUND-SIDE MONITORING SYSTEM
7 WIRELESS TRANSMISSION DEVICE
8 DATABASE
9 PERSONAL COMPUTER
10 ANALYSIS DEVICE
11 NETWORK
12 VIBRATION ACCELERATION SENSOR
13 VEHICLE BODY
14 CARRIAGE
20 RAILWAY VEHICLE
21 GANGWAY
30 PROCESSOR
31 SWITCH
32 DISPLAY PORTION
33 CPU
34 INTERFACE
35 RAM
36 ROM
37 CARD CONNECTOR
38 BUS
39 MEMORY CARD
40 SETTING PORTION
50 SENSOR SIGNAL DETECTING PORTION
51 SENSOR SIGNAL THRESHOLD DETERMINATION PROCESSING PORTION
52 SENSOR SIGNAL THRESHOLD EXCEEDING SECTION MANAGEMENT PORTION
53 VEHICLE POSITIONAL INFORMATION THRESHOLD DETERMINATION PROCESS PORTION
54 DATA TRANSMISSION AND RECORDING PROCESSING PORTION
60 VIBRATION ACCELERATION WAVEFORM
61 VIBRATION ACCELERATION THRESHOLD
62 VIBRATION ACCELERATION THRESHOLD EXCEEDING TIME
63 EXCEPTIONALLY LARGE VIBRATION GENERATION SECTION
70 STATION
71 VIBRATION ACCELERATION SENSOR SIGNAL WAVEFORM
72 NUMBER OF TIMES THRESHOLD IS EXCEEDED BETWEEN STATIONS A-B
73 NUMBER OF TIMES THRESHOLD IS EXCEEDED BETWEEN STATIONS C-D
74 DATA RECORDING TRANSMISSION PROPRIETY SIGNAL
75 THRESHOLD EXCEEDING VIBRATION ACCELERATION
76 STATION CODE
80 VIBRATION ACCELERATION DISTRIBUTION
81 VIBRATION ACCELERATION DISTRIBUTION
82 VIBRATION ACCELERATION DISTRIBUTION
83 VIBRATION ACCELERATION DISTRIBUTION
84 VIBRATION ACCELERATION
85 TREND ANALYSIS RANGE SPECIFICATION
90 VIBRATION ACCELERATION LEVEL
100a VIBRATION ACCELERATION SENSOR SIGNAL
101a DIGITAL SENSOR SIGNAL
102a SENSOR SIGNAL THRESHOLD DETERMINATION PROCESS RESULT
104a VEHICLE POSITIONING SIGNAL
105a NUMBER OF TIMES SENSOR SIGNAL THRESHOLD IS EXCEEDED 106a DETERMINATION PROCESS
RESULT
107a VEHICLE INFORMATION SIGNAL
110a AUTOMATIC RECORDING SECTION SIGNAL
150 THRESHOLD MANAGEMENT UPDATE DEVICE
200 POWER ON PROCESS
201 INITIAL SETTING
202 DETECTION PROCESS OF SENSOR SIGNAL AND VEHICLE POSITIONAL INFORMATION
203 SENSOR SIGNAL THRESHOLD DETERMINATION PROCESS
205 RECORDING AND TRANSMISSION PROCESS OF SENSOR SIGNAL EXCEEDING SENSOR SIGNAL THRESHOLD
206 STATUS START-UP PROCESS EXCEEDING SENSOR SIGNAL THRESHOLD
207 STATUS DETERMINATION PROCESS
208 STATUS STAND-DOWN PROCESS EXCEEDING SENSOR SIGNAL THRESHOLD
210 COUNTER UPDATE PROCESS EXCEEDING SENSOR SIGNAL THRESHOLD
211 SECTION GENERATION PROCESS EXCEEDING SENSOR SIGNAL THRESHOLD
213 SECTION SETTING PROCESS
215 RECORDING AND TRANSMISSION PROCESS OF SENSOR SIGNAL
217 STATE-MONITORING SYSTEM DISCONNECTION PROCESS
1. A state-monitoring device (2) that performs state monitoring of a vehicle (1) based
on a sensor signal acquired from a sensor that is mounted in the vehicle and positional
information of the vehicle that is acquired from a vehicle information control device
(5), the state-monitoring device comprising:
a sensor signal detecting portion (50) that detects the sensor signal;
a sensor signal threshold determination processing portion (51) that determines whether
or not the sensor signal exceeds a predetermined threshold;
a sensor signal threshold exceeding section management portion (52) that inputs positional
information of the vehicle (1) and a determination result by the sensor signal threshold
determination processing portion (51) and measures the number of times that the threshold
is exceeded within a predetermined section; and
an automatic recording section management portion (53) that determines whether or
not the number of times that the threshold is exceeded within the predetermined section
exceeds the predetermined number of times and sets the predetermined section as an
automatic recording section in which data recording is automatically performed in
a case where the number of times that the threshold is exceeded exceeds the predetermined
number of times.
2. The state-monitoring device according to Claim 1,
wherein it is detected whether or not the vehicle (1) is on a rail in the automatic
recording section, and
a signal that enables data recording is output when the sensor signal exceeds the
predetermined threshold or while the vehicle is running in the automatic recording
section.
3. The state-monitoring device according to Claim 1,
wherein the sensor is at least any one of a vibration acceleration sensor (12), a
sound level meter, and a strain sensor that are installed in a vehicle body or on
the periphery of a carriage of the vehicle (1), and
the positional information of the vehicle is at least any one of a station code, kilometers,
and GPS that are set in each specific station.
4. The state-monitoring device according to Claim 2,
wherein the sensor is at least any one of a vibration acceleration sensor (12), a
sound level meter, and a strain sensor that are installed in a vehicle body or on
the periphery of a carriage of the vehicle (1), and
the positional information of the vehicle is at least any one of a station code, kilometers,
and GPS that are set in each specific station.
5. The state-monitoring device of a railway vehicle according to Claim 4,
wherein the station code that is set by the automatic recording section management
portion (53) and the station code that is transmitted from the vehicle information
control device (5) are compared, and when the station codes match, the data recording
is permitted.
6. The state-monitoring device according to Claim 3, further comprising either:
based on a determination result by the sensor signal threshold determination processing
portion (51) and a determination result by the automatic recording section management
portion (53),
a recording portion (54) that records the sensor signal and vehicle running velocity
information that is acquired from the vehicle information control device (5); or
based on a determination result by the sensor signal threshold determination processing
portion (51) and a determination result by the automatic recording section management
portion (53),
a transmission portion (54) that transmits the sensor signal and the vehicle running
velocity information to the outside by wireless communication.
7. The state-monitoring device according to Claim 5, further comprising either:
based on a determination result by the sensor signal threshold determination processing
portion (51) and a determination result by the automatic recording section management
portion (53),
a recording portion (54) that records the sensor signal and vehicle running velocity
information that is acquired from the vehicle information control device (5); or
based on a determination result by the sensor signal threshold determination processing
portion (51) and a determination result by the automatic recording section management
portion (53),
a transmission portion (54) that transmits the sensor signal and the vehicle running
velocity information to the outside by wireless communication.
8. The state-monitoring device according to Claim 6,
wherein either the recording portion (54) or the transmission portion (54) is executed
by the vehicle (1) while stopped in a station or a vehicle maintenance base.
9. A state-monitoring system that has a plurality of the vehicles (1, 1', 1'') which
are provided with the state-monitoring device and the vehicle information control
device (5, 5', 5'') according to Claim 1,
wherein each of the plurality of the vehicles is provided with a wireless communication
portion (7, 7' , 7'') that is able to transmit and receive data to and from the outside,
and
the predetermined threshold or the predetermined number of times are updated based
on a determination result by the sensor signal threshold determination processing
portion (51) or a determination result by the automatic recording section management
portion (53) of the plurality of vehicles (1, 1', 1'').
10. The state-monitoring system according to Claim 9, further comprising:
a ground device (6) that is able to receive the plurality of determination results
via wireless communication.
11. An organization train that has a plurality of the vehicles (1) which are provided
with the state-monitoring device (2) and the vehicle information control device (5)
according to Claim 1,
wherein a determination result by the sensor signal threshold determination processing
portion (51) or a determination result by the automatic recording section management
portion (53) of the plurality of vehicles (1) is shared between each of the vehicles.
1. Zustandsüberwachungsvorrichtung (2), die eine Zustandsüberwachung eines Fahrzeuges
(1) auf Basis eines Sensorsignals, das von einem in dem Fahrzeug befestigten Sensor
erfasst wird, und von Positionsinformationen des Fahrzeuges, die von einer Fahrzeuginformationen-Steuerungsvorrichtung
(5) erfasst werden, durchführt, wobei die Zustandsüberwachungsvorrichtung Folgendes
umfasst:
einen Sensorsignaldetektionsabschnitt (50), der das Sensorsignal detektiert;
einen Sensorsignalschwellenbestimmungsverarbeitungsabschnitt (51), der bestimmt, ob
das Sensorsignal eine vorbestimmte Schwelle überschreitet;
einen Sensorsignalschwellenüberschreitungsbereich-Verwaltungsabschnitt (52), der Positionsinformationen
des Fahrzeuges (1) und ein Bestimmungsergebnis von dem Sensorsignalschwellenbestimmungsverarbeitungsabschnitt
(51) eingibt und die Anzahl an Malen, an denen die Schwelle innerhalb eines vorbestimmten
Bereichs überschritten wird, misst; und
einen Automatische-Aufzeichnung-Bereichsverwaltungsabschnitt (53), der bestimmt, ob
die Anzahl an Malen, an denen die Schwelle in dem vorbestimmten Bereich überschritten
wird, die vorbestimmte Anzahl an Malen überschreitet, und den vorbestimmten Bereich
als einen Automatische-Aufzeichnung-Bereich einstellt, in dem in einem Fall, in dem
die Anzahl an Malen, an denen die Schwelle überschritten wird, die vorbestimmte Anzahl
an Malen überschreitet, eine Datenaufzeichnung automatisch durchgeführt wird.
2. Zustandsüberwachungsvorrichtung nach Anspruch 1,
wobei detektiert wird, ob das Fahrzeug (1) sich in dem Automatische-Aufzeichnung-Bereich
auf einer Schiene befindet, und
wobei ein Signal, das die Datenaufzeichnung ermöglicht, ausgegeben wird, wenn das
Sensorsignal die vorbestimmte Schwelle überschreitet, oder während das Fahrzeug sich
in dem Automatische-Aufzeichnung-Bereich bewegt.
3. Zustandsüberwachungsvorrichtung nach Anspruch 1,
wobei der Sensor zumindest ein beliebiger aus einem Schwingungsbeschleunigungssensor
(12), einem Geräuschpegelmesser und einem Dehnungssensor ist, die in einem Fahrzeugkörper
oder auf der Außenseite eines Waggons des Fahrzeuges (1) installiert sind, und
wobei die Positionsinformationen des Fahrzeuges zumindest eines aus Haltestellencode,
Kilometern und GPS, die in jeder spezifischen Haltestelle eingestellt sind, ist.
4. Zustandsüberwachungsvorrichtung nach Anspruch 2,
wobei der Sensor zumindest ein beliebiger aus einem Schwingungsbeschleunigungssensor
(12), einem Geräuschpegelmesser und einem Dehnungssensor ist, die in einem Fahrzeugkörper
oder auf der Außenseite eines Waggons des Fahrzeuges (1) installiert sind, und
wobei die Positionsinformationen des Fahrzeuges zumindest eines aus Haltestellencode,
Kilometern und GPS, die in jeder spezifischen Haltestelle eingestellt sind, ist.
5. Zustandsüberwachungsvorrichtung eines Zugfahrzeuges nach Anspruch 4,
wobei der Haltestellencode, der von dem Automatische-Aufzeichnung-Bereichsverwaltungsabschnitt
(53) eingestellt wird, und der Haltestellencode, der von der Fahrzeuginformationen-Steuerungsvorrichtung
(5) übertragen wird, verglichen werden, und wenn die Haltestellencodes übereinstimmen,
die Datenaufzeichnung zugelassen wird.
6. Zustandsüberwachungsvorrichtung nach Anspruch 3, die ferner entweder Folgendes umfasst:
auf Basis eines Bestimmungsergebnisses von dem Sensorsignalschwellenbestimmungsverarbeitungsabschnitt
(51) und eines Bestimmungsergebnisses von dem Automatische-Aufzeichnung-Bereichsverwaltungsabschnitt
(53),
einen Aufzeichnungsabschnitt (54), der das Sensorsignal und Fahrzeugbewegungsgeschwindigkeitsinformationen,
die von der Fahrzeuginformationen-Steuerungsvorrichtung (5) erfasst werden, aufzeichnet;
oder Folgendes umfasst:
auf Basis eines Bestimmungsergebnisses von dem Sensorsignalschwellenbestimmungsverarbeitungsabschnitt
(51) und eines Bestimmungsergebnisses von dem Automatische-Aufzeichnung-Bereichsverwaltungsabschnitt
(53),
einen Übertragungsabschnitt (54), der das Sensorsignal und Fahrzeugbewegungsgeschwindigkeitsinformationen
mittels drahtloser Kommunikation nach außen überträgt.
7. Zustandsüberwachungsvorrichtung nach Anspruch 5, die ferner entweder Folgendes umfasst:
auf Basis eines Bestimmungsergebnisses von dem Sensorsignalschwellenbestimmungsverarbeitungsabschnitt
(51) und eines Bestimmungsergebnisses von dem Automatische-Aufzeichnung-Bereichsverwaltungsabschnitt
(53),
einen Aufzeichnungsabschnitt (54), der das Sensorsignal und Fahrzeugbewegungsgeschwindigkeitsinformationen,
die von der Fahrzeuginformationen-Steuerungsvorrichtung (5) erfasst werden, aufzeichnet;
oder Folgendes umfasst:
auf Basis eines Bestimmungsergebnisses von dem Sensorsignalschwellenbestimmungsverarbeitungsabschnitt
(51) und eines Bestimmungsergebnisses von dem Automatische-Aufzeichnung-Bereichsverwaltungsabschnitt
(53),
einen Übertragungsabschnitt (54), der das Sensorsignal und Fahrzeugbewegungsgeschwindigkeitsinformationen
mittels drahtloser Kommunikation nach außen überträgt.
8. Zustandsüberwachungsvorrichtung nach Anspruch 6,
wobei entweder der Aufzeichnungsabschnitt (54) oder der Übertragungsabschnitt (54)
von dem Fahrzeug (1) ausgeführt wird, während es in der Haltestelle oder einer Fahrzeuginstandhaltungsbasis
hält.
9. Zustandsüberwachungssystem, das eine Vielzahl von Fahrzeugen (1, 1', 1'') aufweist,
die mit der Zustandsüberwachungsvorrichtung und einer Fahrzeuginformationen-Steuerungsvorrichtung
(5, 5', 5") nach Anspruch 1 bereitgestellt sind,
wobei jedes der Vielzahl von Fahrzeugen mit einem drahtlosen Kommunikationsabschnitt
(7, 7', 7") bereitgestellt ist, der in der Lage ist, Daten nach außen zu übertragen
und von außen zu empfangen, und
wobei die vorbestimmte Schwelle oder die vorbestimmte Anzahl von Malen auf Basis eines
Bestimmungsergebnisses von dem Sensorsignalschwellenbestimmungsverarbeitungsabschnitt
(51) oder eines Bestimmungsergebnisses von dem Automatische-Aufzeichnung-Bereichsverwaltungsabschnitt
(53) der Vielzahl von Fahrzeugen (1, 1', 1'') aktualisiert werden.
10. Zustandsüberwachungssystem nach Anspruch 9, das ferner Folgendes umfasst:
eine Bodenvorrichtung (6), die in der Lage ist, die Vielzahl von Bestimmungsergebnissen
mittels drahtloser Kommunikation zu empfangen.
11. Organisationszug, der eine Vielzahl von Fahrzeugen (1) aufweist, die mit einer Zustandsüberwachungsvorrichtung
(2) und einer Fahrzeuginformationen-Steuerungsvorrichtung (5) nach Anspruch 1 bereitgestellt
sind;
wobei ein Bestimmungsergebnis von dem Sensorsignalschwellenbestimmungsverarbeitungsabschnitt
(51) oder ein Bestimmungsergebnis von dem Automatische-Aufzeichnung-Bereichsverwaltungsabschnitt
(53) der Vielzahl von Fahrzeugen (1) zwischen jedem der Fahrzeuge ausgetauscht wird.
1. Dispositif de surveillance d'état (2) qui effectue une surveillance d'état d'un véhicule
(1) sur la base d'un signal de capteur acquis à partir d'un capteur qui est monté
dans le véhicule et d'informations de position du véhicule qui sont acquises à partir
d'un dispositif de commande d'informations de véhicule (5), le dispositif de surveillance
d'état comprenant :
une partie de détection de signal de capteur (50) qui détecte le signal de capteur
;
une partie de traitement de détermination de seuil de signal de capteur (51) qui détermine
si oui ou non le signal de capteur dépasse un seuil prédéterminé ;
une partie de gestion de section de dépassement de seuil de signal de capteur (52)
qui entre des informations de position du véhicule (1) et un résultat de détermination
par la partie de traitement de détermination de seuil de signal de capteur (51) et
mesure le nombre de fois que le seuil est dépassé dans une section prédéterminée ;
et
une partie de gestion de section d'enregistrement automatique (53) qui détermine si
oui ou non le nombre de fois que le seuil est dépassé dans la section prédéterminée
dépasse le nombre de fois prédéterminé et définit la section prédéterminée comme une
section d'enregistrement automatique dans laquelle l'enregistrement de données est
automatiquement effectué dans un cas où le nombre de fois que le seuil est dépassé
dépasse le nombre de fois prédéterminé.
2. Dispositif de surveillance d'état selon la revendication 1,
dans lequel il est détecté que le véhicule (1) se trouve ou non sur un rail dans la
section d'enregistrement automatique, et
un signal qui permet un enregistrement de données est délivré en sortie lorsque le
signal du capteur dépasse le seuil prédéterminé ou lorsque le véhicule se déplace
dans la section d'enregistrement automatique.
3. Dispositif de surveillance d'état selon la revendication 1,
dans lequel le capteur est au moins un parmi un capteur d'accélération de vibration
(12), un sonomètre et un capteur de contrainte qui sont installés dans une carrosserie
de véhicule ou à la périphérie d'un chariot du véhicule (1), et
les informations de position du véhicule sont au moins un quelconque parmi un code
de station, des kilomètres et un GPS définis dans chaque station spécifique.
4. Dispositif de surveillance d'état selon la revendication 2,
dans lequel le capteur est au moins un quelconque parmi un capteur d'accélération
de vibration (12), un sonomètre et un capteur de contrainte qui sont installés dans
une carrosserie de véhicule ou à la périphérie d'un chariot du véhicule (1), et
les informations de position du véhicule sont au moins un quelconque parmi un code
de station, des kilomètres et un GPS définis dans chaque station spécifique.
5. Dispositif de surveillance d'état d'un véhicule ferroviaire selon la revendication
4,
dans lequel le code de station qui est défini par la partie de gestion de section
d'enregistrement automatique (53) et le code de station qui est transmis par le dispositif
de commande d'informations de véhicule (5) sont comparés, et lorsque les codes de
station correspondent, l'enregistrement de données est autorisé.
6. Dispositif de surveillance d'état selon la revendication 3, comprenant en outre :
sur la base d'un résultat de détermination par la partie de traitement de détermination
de seuil de signal de capteur (51) et d'un résultat de détermination par la partie
de gestion de section d'enregistrement automatique (53),
une partie d'enregistrement (54) qui enregistre le signal de capteur et les informations
de vitesse de déplacement de véhicule qui sont acquises à partir du dispositif de
commande d'informations de véhicule (5) ; ou
sur la base d'un résultat de détermination par la partie de traitement de détermination
de seuil de signal de capteur (51) et d'un résultat de détermination par la partie
de gestion de section d'enregistrement automatique (53),
une partie de transmission (54) qui transmet le signal de capteur et les informations
de vitesse de déplacement de véhicule à l'extérieur par communication sans fil.
7. Dispositif de surveillance d'état selon la revendication 5, comprenant en outre :
sur la base d'un résultat de détermination par la partie de traitement de détermination
de seuil de signal de capteur (51) et d'un résultat de détermination par la partie
de gestion de section d'enregistrement automatique (53),
une partie d'enregistrement (54) qui enregistre le signal de capteur et les informations
de vitesse de déplacement de véhicule qui sont acquises à partir du dispositif de
commande d'informations de véhicule (5) ; ou
sur la base d'un résultat de détermination par la partie de traitement de détermination
de seuil de signal de capteur (51) et d'un résultat de détermination par la partie
de gestion de section d'enregistrement automatique (53),
une partie de transmission (54) qui transmet le signal de capteur et les informations
de vitesse de déplacement de véhicule vers l'extérieur par communication sans fil.
8. Dispositif de surveillance d'état selon la revendication 6,
dans lequel soit la partie d'enregistrement (54) soit la partie de transmission (54)
est exécutée par le véhicule (1) alors qu'il est arrêté dans une station ou une base
d'entretien de véhicule.
9. Système de surveillance d'état qui comporte une pluralité des véhicules (1, 1', 1")
qui sont équipés du dispositif de surveillance d'état et du dispositif de commande
d'informations de véhicule (5, 5', 5") selon la revendication 1,
dans lequel chacun de la pluralité des véhicules est pourvu d'une partie de communication
sans fil (7, 7', 7") qui est capable de transmettre et de recevoir des données vers
et depuis l'extérieur, et
le seuil prédéterminé ou le nombre prédéterminé de fois sont mis à jour sur la base
d'un résultat de détermination par la partie de traitement de détermination de seuil
de signal de capteur (51) ou d'un résultat de détermination par la partie de gestion
de section d'enregistrement automatique (53) de la pluralité de véhicules (1, 1',
1").
10. Système de surveillance d'état selon la revendication 9, comprenant en outre :
un dispositif au sol (6) qui est capable de recevoir la pluralité de résultats de
détermination via une communication sans fil.
11. Train d'organisation qui comprend une pluralité des véhicules (1) qui sont munis du
dispositif de surveillance d'état (2) et le dispositif de commande d'informations
de véhicule (5) selon la revendication 1,
dans lequel un résultat de détermination par la partie de traitement de détermination
de seuil de signal de capteur (51) ou un résultat de détermination par la partie de
gestion de section d'enregistrement automatique (53) de la pluralité de véhicules
(1) est partagé entre chacun des véhicules.