WO2019159226A1

WO2019159226A1 - Railway car state monitoring system

Info

Publication number: WO2019159226A1
Application number: PCT/JP2018/004850
Authority: WO
Inventors: 一司堀江; 健一草野
Original assignee: 三菱電機株式会社
Priority date: 2018-02-13
Filing date: 2018-02-13
Publication date: 2019-08-22
Also published as: JP7142654B2; JPWO2019159226A1

Abstract

This railway car state monitoring system (1) is provided with: a central device (40) which acquires state information about devices (20) mounted in cars (10); data collecting devices (50) which comprise a data holding unit (52) for recording state information about the devices (20) acquired by a data acquisition unit (51), and a data communication unit (53) for transmitting state information recorded in the data holding unit (52); and a data recording device (60) which records part of the state information of the devices (20) which is outputted from the central device (40) and state information which is transmitted over the data communication unit (53).

Description

Railway vehicle condition monitoring system

The present invention relates to a railway vehicle state monitoring system for monitoring the state of equipment mounted on the railway vehicle.

Conventionally, a system for monitoring the state of equipment mounted on a railway vehicle is known. For example, in Patent Document 1, for an appliance in an electric vehicle, an appropriate replacement time is determined in accordance with a replacement reference value according to the use condition for each part before reaching the life years, the number of life operations, and the life operation time, There is disclosed a monitoring device with a maintenance function for an electric vehicle capable of notifying that a corresponding part should be replaced when the replacement time comes.

JP 2008-029110 A

In Patent Document 1, the monitor central device constantly acquires the operating states of various devices on the vehicle. In addition, since the monitor central device also manages train information and the like necessary for train operation management, acquiring the operating status of various devices on the vehicle constantly increases the burden on the monitor central device. is there.

The present invention has been made to solve the above-described problems, and is a state of a railway vehicle that can record state information of equipment mounted on the vehicle without increasing the burden on the central device. The purpose is to provide a monitoring system.

In order to achieve the above object, a railway vehicle state monitoring system according to the present invention records state information of a device acquired by a data acquisition unit and a central device that acquires state information of a device mounted on the vehicle. A data collection unit having a data holding unit, a data communication unit for transmitting state information recorded in the data holding unit, a piece of device state information output from the central unit, and a data communication unit And a data recording device for recording the state information transmitted.

According to the railway vehicle state monitoring system of the present invention, it is possible to record the state information of the equipment mounted on the vehicle without increasing the burden on the central device.

It is a figure which shows an example of a structure of the state monitoring system of the rail vehicle which concerns on embodiment of this invention. It is a figure which shows an example of a structure of the data collection device of the state monitoring system of the rail vehicle which concerns on embodiment of this invention. It is a flowchart which shows an example of the process by the data collection device of the state monitoring system of the rail vehicle which concerns on embodiment of this invention. It is a flowchart which shows an example of the flow of transmission of the status information by the some data collection device of the status monitoring system which concerns on embodiment of this invention. It is a figure which shows an example of the integrated status information recorded on a data recording device. It is a figure which shows another example of a structure of the state monitoring system of the rail vehicle which concerns on embodiment of this invention. It is a figure which shows another example of a structure of the state monitoring system of the rail vehicle which concerns on embodiment of this invention. It is a figure which shows another example of a structure of the data collection device of the railway vehicle state monitoring system which concerns on embodiment of this invention. It is a figure which shows an example of the hardware constitutions which implement | achieve the state monitoring system of the rail vehicle which concerns on embodiment of this invention.

Hereinafter, an embodiment of a railway vehicle state monitoring system according to the present invention will be described with reference to the drawings.

FIG. 1 is a diagram illustrating an example of a configuration of a railway vehicle state monitoring system 1 according to the present embodiment. As shown in FIG. 1, a train 100 including a railway vehicle state monitoring system 1 according to the present embodiment is configured by connecting a plurality of vehicles 10 to each other. In FIG. 1, only two vehicles, the leading vehicle 10a and the succeeding vehicle 10b adjacent to the vehicle 10a, are illustrated, but the number of vehicles 10 constituting the train 100 is not particularly limited. .

The railway vehicle state monitoring system (hereinafter referred to as a state monitoring system) 1 according to the present invention collects state information indicating the states of a plurality of devices 20 (20a to 20c) mounted on the vehicle 10, as shown in FIG. The terminal device 30 that performs the operation, the central device 40 that acquires the status information of the plurality of devices 20 output from the terminal device 30, and the plurality of data collection devices 50 (50a to 50c) that respectively acquire the status information of the plurality of devices 20. A data recording device 60 for recording a part of the state information of the device 20 output from the central device 40 and the respective state information acquired by the plurality of data collection devices 50, and a state recorded in the data recording device 60 A vehicle-side wireless communication unit 70 that transmits information to the ground server 80 provided on the ground side by wireless communication via the network 90.

Each vehicle 10 is equipped with a plurality of devices 20 (20a to 20c). The device 20 is, for example, a propulsion control device, an auxiliary power supply device, a brake device, an air conditioner, a lighting device, a door, a wheel, a motor, or the like. Note that the type of the device 20 to be mounted may be different depending on the vehicle 10. The plurality of devices 20a to 20c are connected to a terminal device 30 provided in the vehicle 10 on which each of the devices 20a to 20c is mounted via an in-vehicle transmission line (branch line transmission line) 11. The state information of each of the plurality of devices 20a to 20c is collected by the terminal device 30 via various sensors (not shown) that detect the respective state information provided in the respective devices 20a to 20c. The in-vehicle transmission line 11 is a transmission line disposed in the vehicle 10 and is configured using, for example, a LAN line or the like. In addition, device identification information for uniquely identifying the device itself is assigned to each of the devices 20a to 20c. Specifically, for example, as shown in FIG. 2, a device identification information output device 21 in which device identification information is recorded is attached to each device 20, and the device identification information can be transmitted. Has been. As the device identification information output device 21, for example, an RFID (Radio Frequency Identification) tag or the like can be used.

Further, vehicle identification information for uniquely identifying the own vehicle is also given to each vehicle 10 on which the plurality of devices 20a to 20c are mounted. Specifically, for example, a vehicle identification information output device 12 in which vehicle identification information is recorded is attached to each vehicle 10 so that the vehicle identification information can be transmitted. In addition, vehicle number information indicating the vehicle number of the vehicle 10 or vehicle type information indicating whether the vehicle 10 is a leading vehicle, an intermediate vehicle, or a trailing vehicle may be added to the vehicle identification information. As the vehicle identification information output device 12, for example, an RFID (RadioRadFrequency Identification) tag or the like can be used. In FIG. 1, as a plurality of devices 20, a propulsion control device (VVVF) 20 a that performs control for driving the train 100, an auxiliary power supply device (SIV) that supplies power to various electrical devices such as an air conditioner and a lighting device. ) 20b, only three types of devices, the brake device (BR) 20c for braking the train, are illustrated, but the actual vehicle 10 is equipped with various types of devices 20, and these types of devices are It is not limited to. The VVVF 20a is a VVVF (Variable Voltage Variable Frequency) inverter, and controls vehicle propulsion by changing the voltage and frequency of the motor.

The terminal device 30 is installed in each vehicle 10 and is connected to each other via an inter-vehicle transmission path (main transmission path) 13. The inter-vehicle transmission path 13 is a transmission path disposed between the vehicles, and is configured using, for example, a LAN line. The terminal device 30 transmits control information including a control command output from the central device 40 to each device 20 in the vehicle 10. Further, the terminal device 30 transmits a part of state information of the collected state information of each device 20 to the central device 40 according to a command from the central device 40. Here, a part of the state information is information obtained by thinning out the state information of the plurality of devices 20 collected by the terminal device 30 or a part of the collected devices 20. The information is reduced in capacity only to the state information.

The central device 40 is mounted on, for example, the first vehicle 10a and the last vehicle (not shown). The central device 40 is connected to the terminal device 30 and acquires and manages some state information of each device 20 output from the terminal device 30. Then, the central device 40 outputs some state information of each device 20 managed by the central device 40 to the data recording device 60.

In the central device 40, in addition to managing the status information of the plurality of devices 20, for example, train operation information indicating stop station information and departure / arrival station time, train identification information identifying the train 100, train indicating the position of the train 100, and the like. Position information, train speed information indicating the speed of the train 100, vehicle number information indicating the number of connected vehicles of the train 100, traveling direction information indicating the traveling direction of the train 100, and a vehicle indicating the vehicle length of each vehicle 10 constituting the train 100 Train information sent and received in the train such as length information or notch information indicating the number of stages of the master controller (master controller) is managed. The central device 40 is connected to a control operation device (not shown) such as a master controller, a cab display device (not shown), and the like. The central device 40 transmits control information input from the control operation device or the like to each device 20 via the terminal device 30 installed in each vehicle 10 to perform control. The cab display device displays information such as the speed of the train 100, the door opening / closing state, and the brake pressure, for example.

The data collection device 50 is for collecting the status information of the device 20, and a plurality of data collection devices 50 are provided for each of the plurality of devices 20 mounted on the vehicle 10, as shown in FIG. As the data collection device 50, for example, a data logger can be used. The position in the vehicle 10 where the data collection device 50 is provided is not particularly limited. For example, the data collection device 50 is attached around the device 20 that collects state information. Each of the plurality of data collection devices 50 is assigned collection device identification information for uniquely identifying its own device.

FIG. 2 is a diagram showing an example of the configuration of the data collection device 50 of the state monitoring system 1 according to the embodiment of the present invention. As illustrated in FIG. 2, the data collection device 50 transmits a status information, a data acquisition unit 51 that acquires the status information of the device 20, a data holding unit 52 that records the status information acquired by the data acquisition unit 51, and the status information. The device 20 includes the data communication unit 53, the device identification information reading unit 54 that reads the device identification information from the device identification information output device 21, the vehicle identification information reading unit 55 that reads the vehicle identification information from the vehicle identification information output device 12, and the data acquisition unit 51. A time information acquisition unit 56 that acquires time information indicating the date and time when the state information is acquired, a collection device identification information output unit 57 that outputs collection device identification information, and the like.

The data acquisition unit 51 is an interface unit that acquires the state information of the device 20 through various sensors (not shown) for detecting the state information provided in the device 20, for example. As various sensors that detect the state information of the device 20, for example, when the device 20 is the propulsion control device 20a, a current sensor that detects an input / output current is used as the state information. When the device 20 is the auxiliary power supply device 20b, for example, a voltage sensor that detects an output voltage as state information or a current sensor that detects an output current as state information is used as the various sensors. When the device 20 is the brake device 20c, for example, a brake pressure sensor that detects a brake pressure as state information is used as various sensors. The state information acquired by the data acquisition unit 51 via various sensors provided in the device 20 is not limited to these, and abnormality diagnosis including life diagnosis and deterioration diagnosis of each device 20 and other various types. Anything that can be used for diagnosis or the like may be used.

The data holding unit 52 is configured by a memory or the like, for example, and records the status information of the device 20 acquired by the data acquisition unit 51. At that time, the data holding unit 52 outputs, for example, device identification information read by the device identification information reading unit 54 from the device identification information output device 21 and vehicle identification information reading unit 55 outputs vehicle identification information. The vehicle identification information read from the device 12, the time information acquired by the time information acquisition unit 56, the collection device identification information output from the collection device identification information output unit 57, and the like are recorded in association with each other. As the device identification information reading unit 54 and the vehicle identification information reading unit 55, for example, when the device identification information output device 21 and the vehicle identification information output device 12 are RFID tags, an RFID tag reading device can be used. In addition, you may make it acquire vehicle identification information not from the vehicle identification information output device 12 attached to the vehicle 10, but from the outside. For example, the time information acquisition unit 56 acquires time information from the central device 40 and outputs the time information to the data holding unit 52. Further, when the time information acquisition unit 56 has its own clock function, the time information acquisition unit 56 can output the time information to the data holding unit 52 without acquiring the time information from the central device 40. The collection device identification information may be recorded in advance in the data holding unit 52 instead of being output from the collection device identification information output unit 57 to the data holding unit 52. Note that the data holding unit 52 holds the state information of the device 20 for a predetermined period. The predetermined period is not particularly limited. For example, the status information of the device 20 for one day to several days may be held in the data holding unit 52. As a result, even when the status information cannot be transmitted due to a malfunction or the like of the data communication unit 53, the status of the devices 20 gathered for a predetermined period after the restoration of the data communication unit 53 or after the operation of the train 100 is completed. Information can be obtained.

The data communication unit 53 transmits state information recorded in the data holding unit 52 by wireless communication. In the data communication unit 53, for example, wireless communication is performed using short-range wireless communication such as Bluetooth (registered trademark) with low power consumption. For example, the data communication unit 53 sequentially transmits the state information recorded in the data holding unit 52 to other data collection devices 50 by wireless communication as indicated by a dotted line in FIG. Thereby, each status information collected by each data collection device 50 is collected in the data collection device 50c provided in the head vehicle 10a, for example. The data communication unit 53 of the data collection device 50c provided in the leading vehicle 10a outputs the aggregated state information to the data recording device 60. As illustrated in FIG. 1, for example, the data collection device 50 may transmit state information from the data communication unit 53 to the smartphone or tablet-type mobile terminal 15 by wireless communication. FIG. 1 shows an example in which data is transmitted from the data collection device 50c of the leading vehicle 10a to the portable terminal 15, but status information is transmitted from the data communication unit 53 of each data collection device 50 to the portable terminal 15, respectively. Anyway. In addition, a switchboard (not shown), a ground unit, a facility provided along the track, a facility provided at a station platform where the train 100 stops, or the like provided on a track on which the train 100 travels can be respectively connected. The status information may be transmitted from the data communication unit 53 of the data collection device 50.

FIG. 3 is a flowchart showing an example of processing by the data collection device 50 of the state monitoring system 1 according to the embodiment of the present invention. Hereinafter, the flow of processing by the data collection device 50 of the state monitoring system 1 according to the embodiment of the present invention will be described with reference to the flowchart of FIG.

In the data collection device 50, for example, when a power source (not shown) is turned on, the vehicle identification information reading unit 55 reads and acquires the vehicle identification information from the vehicle identification information output device 12, as shown in FIG. The data is output to the data holding unit 52 (S101). The device identification information reading unit 54 reads the device identification information from the device identification information output device 21 and outputs the device identification information to the data holding unit 52 (S102). Further, the collection device identification information output unit 57 outputs the collection device identification information to the data holding unit 52 (S103). Note that the order of the processing of S101 to S103 is not particularly limited, can be changed, and may be performed simultaneously.

Next, the data acquisition unit 51 acquires the status information of the device 20 and outputs it to the data holding unit 52 (S104). Further, the time information acquisition unit 56 acquires time information indicating the date and time when the data acquisition unit 51 acquires the status information of the device 20, and outputs the time information to the data holding unit 52 (S105). The data holding unit 52 adds the vehicle identification information, the device identification information, the collection device identification information, and the processing information of S105 acquired by the processing of S101 to S103 to the status information of the device 20 acquired by the processing of S104. The acquired time information is recorded in association with each other (S106).

The data collection device 50 determines whether or not the status information of the device 20 for a predetermined number of times is recorded in the data holding unit 52 (S107). If the status information of the device 20 for the predetermined number of times is not recorded in the data holding unit 52 (S107: NO), the processes of S104 to S106 are repeated. When the state information of the device 20 for a predetermined number of times is recorded in the data holding unit 52 (S107: YES), the data communication unit 53 transmits the state information recorded in the data holding unit 52. Perform (S108). Note that the predetermined number of times is not particularly limited, and the data communication unit 53 may set the transmission so long as the state information for one time is acquired. Note that the data collection device 50 repeats the processing of S104 to S108 until the power is turned off, for example. In addition, the data collection device 50 may repeatedly perform the processes of S101 to S103. Basically, while the power is on, the vehicle identification information, the device identification information, and the collection device identification information. Therefore, when the power is turned on, it is obtained only once and output to the data holding unit 52.

FIG. 4 is a flowchart showing an example of a flow of status information transmission by a plurality of data collection devices 50 of the status monitoring system 1 according to the embodiment of the present invention. Hereinafter, the flow of transmission of state information by the plurality of data collection devices 50 of the state monitoring system 1 according to the embodiment of the present invention will be described with reference to the flowchart of FIG.

In the state monitoring system 1, first, one piece of data collection in which the state information of the devices 20 respectively collected by the plurality of data collection devices 50 mounted in the subsequent vehicle 10b in which the central device 40 is not mounted is mounted in the vehicle 10b. The state information is transmitted via each data communication unit 53 so as to be collected in the device 50 (S201). Specifically, in the state monitoring system 1, for example, the data communication unit 53 of the data collection device 50 a mounted on the vehicle 10 b is in the vehicle 10 b in which the state information is set in advance as indicated by a dotted line in FIG. 1. Is transmitted by wireless communication to the data communication unit 53 of the data collection device 50b that is the transmission destination (wireless hopping). As the transmission destination of the state information, for example, among the other data collection devices 50, the data collection device 50 located closest to the head vehicle 10b on which the central device 40 is mounted is set as the transmission destination. You may do it. Next, the data communication unit 53 of the data collection device 50b wirelessly communicates the state information received from the data collection device 50a and the state information recorded in its own data holding unit 52 to the data communication unit 53 of the data collection device 50c. To transmit. Thereby, the status information of the devices 20 collected by the plurality of data collection devices 50 mounted on the vehicle 10b is collected in the data collection device 50c mounted on the vehicle 10b.

Then, the data communication unit 53 of the data collection device 50c mounted on the vehicle 10b records the data collection device 50a received from the data collection device 50b, the status information collected by the data collection device 50b, and its own data holding unit 52. The transmitted state information is transmitted between the vehicles by wireless communication to the data communication unit 53 of the data collection device 50a mounted on the leading vehicle 10a which is a transmission destination between the vehicles set in advance (S202). In FIG. 1, as the transmission destination between the vehicles of the data communication unit 53 of the data collection device 50c mounted on the subsequent vehicle 10b, the closest among the plurality of data collection devices 50 mounted on the head vehicle 10a. An example is shown in which the data communication unit 53 of the data collection device 50a located at is set.

Next, in the state monitoring system 1, the state information of the devices 20 collected by the plurality of data collection devices 50 mounted on the subsequent vehicle 10b and the plurality of data collection devices 50 mounted on the head vehicle 10a are collected. The state information is transmitted via each data communication unit 53 so that the state information of the devices 20 collected is collected in one data collection device 50 mounted on the vehicle 10a (S203). Specifically, in the state monitoring system 1, for example, the data communication unit 53 of the data collection device 50a provided in the leading vehicle 10a holds the state information received from the data collection device 50c of the subsequent vehicle 10b and its own data. The state information recorded in the unit 52 is transmitted by wireless communication to the data communication unit 53 of the data collection device 50b that is a transmission destination in the vehicle 10a that is set in advance, as indicated by a dotted line in FIG. The data communication unit 53 of the data collection device 50b transmits the state information received from the data collection device 50a and the state information recorded in its own data holding unit 52 to the data communication unit 53 of the data collection device 50c by wireless communication. .
As described above, the data communication unit 53 of each data collection device 50 sequentially performs transmission by wireless communication, so that one data collection device 50c among the plurality of data collection devices 50a to 50c provided in the head vehicle 10a is provided. The state information including the state information of the plurality of devices 20 mounted on the following vehicle 10b is collected. In the state monitoring system 1, when transmitting the state information, for example, time synchronization is performed using time information as a reference obtained from the central device 40.

In the state monitoring system 1, the data collection device 50c provided in the leading vehicle 10a outputs the aggregated state information (the state information collected by all the data collection devices 50) to the data recording device 60 (S204). ). In the state monitoring system 1 according to the present embodiment, only the transmission of the state information between the

vehicles

10a and 10b is shown, but a plurality of data collection devices 50 are similarly applied to the vehicles following the vehicle 10b. By sequentially transmitting the state information by wireless communication by the respective data communication units 53, the state information is finally collected in the data collection device 50c provided in the leading vehicle 10a. That is, the status information recorded by each data holding unit 52 of the plurality of data collection devices 50 provided in each vehicle 10 constituting the train 100 is aggregated in the data collection device 50c provided in the leading vehicle 10a, and data recording is performed. It is output to the device 60. In the present embodiment, the data collection device 50 shows a case where one type of state information is acquired from the device 20 by the data acquisition unit 51. However, the data collection device 50 is different from the device 20 in a plurality of different types. It may be configured to acquire the type of state information. In that case, for example, the data collection device 50 may acquire a plurality of state information by the data acquisition unit 51 via a plurality of sensors corresponding to the type of state information acquired from one device 20. . Further, a plurality of data collection devices 50 may be provided for one device 20 in accordance with the number of types of state information acquired from the device 20.

The data recording device 60 is configured by, for example, a server or the like for recording information, and a part of state information of each device 20 acquired by the central device 40 and a data collecting device 50c provided in the leading vehicle 10a. Record the status information aggregated in In the data recording device 60, for example, the state information collected in the data collecting device 50c provided in the leading vehicle 10a may be integrated and recorded. FIG. 5 is a diagram illustrating an example of integrated state information recorded in the data recording device 60. As shown in FIG. 5, in the integrated state information, for example, the state information of each of the plurality of devices 20 acquired with the same time information T1 is associated and integrated with the time information T1. Similarly, the state information of each of the plurality of devices 20 acquired with the same time information T2 is associated and integrated with the time information T2. The state information integrated in this way is arranged in time series and recorded in the data recording device 60. If there is a device 20 for which status information has not been acquired at certain time information, it may be recorded as blank, for example. In FIG. 5, device identification information and collection device identification information are associated with the status information of each of the plurality of devices 20.

Further, the state information of each of the plurality of devices 20 mounted on the same vehicle 10 is integrated in association with the vehicle identification information. In FIG. 5, the state information of each of the plurality of devices 20a to 20c mounted on the vehicle 10a is associated and integrated by vehicle identification information U1 for identifying the vehicle 10a. Similarly, the state information of each of the plurality of devices 20a to 20c mounted on the vehicle 10b is associated and integrated by vehicle identification information U2 for identifying the vehicle 10b. Thereby, it is not necessary to associate the time information and the vehicle identification information for each state information of the plurality of devices 20, and the state information can be integrated with the common time information and the common vehicle identification information. The data capacity recorded in 60 can be compressed. The state information collected by the central device 40 recorded in the data recording device 60 and the state information aggregated in the data collection device 50c provided in the head vehicle 10a are the vehicle-side wireless communication. The data is transmitted from the unit 70 to the ground server 80 provided on the ground side by wireless communication via the network 90. Note that the data recording device 60 is the central device recorded in its own device among the collected state information for the state information collected in the data collecting device 50c provided in the head vehicle 10a recorded in the own device. The state information that does not overlap with some of the state information of the plurality of devices 20 acquired by 40 may be extracted and transmitted to the ground server 80 by the vehicle-side wireless communication unit 70.

The ground server 80 receives a part of the state information of the plurality of devices 20 acquired by the central device 40 received by wireless communication from the vehicle upper side wireless communication unit 70 via the network 90 and the data collection device 50c provided in the head vehicle 10a. Record the status information aggregated in In the ground server 80, for example, the state information of each device 20 is analyzed by using a conventionally known statistical method for the recorded state information, and abnormality diagnosis of each device 20 and other various diagnoses are performed. Do. In addition, you may make it perform abnormality diagnosis etc. of each apparatus 20 in such a ground server 80 on the vehicle upper side. In that case, the analysis may be performed using the state information of each device 20 recorded in the data recording device 60.

In the state monitoring system 1 according to the present embodiment, each data collection device 50 shows an example in which the state information is transmitted by wireless communication using the data communication unit 53, but the state information is transmitted by wireless communication. It is not limited. FIG. 6 is a diagram illustrating another example of the configuration of the state monitoring system 1 according to the present embodiment. As shown in FIG. 6, a plurality of data collection devices 50 may be connected to each other via the communication line 14 so that status information is transmitted by wire using the respective data communication units 53. .

In the state monitoring system 1 according to the present embodiment, the terminal device 30 is also installed in the leading vehicle 10a in which the central device 40 is installed. However, the vehicle 10 in which the central device 40 is installed is not necessarily in the vehicle 10a. The terminal device 30 does not need to be installed. FIG. 7 is a diagram showing still another example of the configuration of the state monitoring system 1 according to the present embodiment. As shown in FIG. 7, the terminal device 30 is not installed in the leading vehicle 10a, and the central device 40 is configured to collect state information of a plurality of devices 20a to 20c mounted on the vehicle 10a. ing. In this case, the central device 40 outputs a part of the state information of the plurality of devices 20a to 20c collected by itself to the data recording device 60. Here, the partial state information is, for example, information obtained by thinning out the state information of the plurality of devices 20 collected by the central device 40 or the state information of the plurality of devices 20 collected by the central device 40. Among them, the information is reduced to only the status information of some of the devices 20.

In the state monitoring system 1 according to the present embodiment, the state information recorded by each data holding unit 52 of the plurality of data collection devices 50 provided in each vehicle 10 is the data collection device provided in the leading vehicle 10a. In the example shown in FIG. However, the method of outputting the status information to the data recording device 60 is not particularly limited. For example, the status information may be output from each data collecting device 50 to the data recording device 60. Further, the status information of the plurality of devices 20 mounted in the same vehicle 10 is aggregated in one data collection device 50 among the plurality of data collection devices 50 mounted in each vehicle 10, and the data recording device 60. May be output respectively. In these cases, the data recording device 60 performs time synchronization using, for example, time information serving as a reference in a clock unit (not shown) included in the data recording device 60.

In the state monitoring system 1 according to the present embodiment, the data holding unit 52 of the data collection device 50 corresponds to the state information of the device 20 with device identification information, vehicle identification information, time information, and collection device identification information. This is an example of recording. However, when the vehicle number information or the vehicle type information is added to the vehicle identification information output by the vehicle identification information output device 12, these pieces of information are also recorded in the data holding unit 52 in association with the state information of the device 20. You may make it do.

Further, the data collection device 50 may acquire information other than the state information of the device 20 from the central device 40 or may detect the information itself and record it in the data holding unit 52 in association with the state information. FIG. 8 is a diagram illustrating another example of the configuration of the data collection device 50. In the data collection device 50 illustrated in FIG. 8, for example, train information such as train identification information, train position information, train speed information, vehicle number information, traveling direction information, and notch information is acquired from the central device 40 via the terminal device 30. Train information acquisition unit 58 and environmental information detection unit 59 that detects environmental information around the device 20. The data holding unit 52 associates these train information and environmental information with the state information of the device 20. To record. Then, the data communication unit 53 transmits state information associated with the train information and the environment information recorded in the data holding unit 52. The train information acquisition unit 58 acquires vehicle position information indicating the position of the vehicle 10 on which the data collection device 50 is mounted instead of the train position information, and outputs the vehicle position information to the data holding unit 52. good. In this case, the data holding unit 52 records the vehicle position information in association with the state information instead of the train position information. Further, the train position information of the train 100 may be calculated by a conventionally known method, and is not particularly limited. For example, an on-ground element (not shown) provided in the vehicle 10 is used as a ground element (not shown). The train position is calculated by calculating the travel distance from the reference position based on the speed information of the train 100 detected by the speed generator (not shown), with the position where the ground element information is detected as the reference position. be able to. Further, the vehicle position information may be calculated by a conventionally known method and is not particularly limited. For example, the vehicle position information may be calculated using train position information, vehicle number information, vehicle length information, and the like. .

The environmental information detection unit 59 detects environmental information around the device 20 from which the data collection device 50 collects state information. The environmental information detected by the environmental information detection unit 59 is not particularly limited, but examples include temperature information, humidity information, atmospheric pressure information, audio information, acceleration information, vibration information, inclination information, magnetic information, and the like. can do. As the environmental information detection unit 59, for example, a temperature sensor, a humidity sensor, an atmospheric pressure sensor, a voice sensor, an acceleration sensor, a vibration sensor, a tilt sensor, or a magnetic sensor is used to detect the various environmental information. Can do. Note that the environment information detection unit 59 may be provided with any one or a plurality of the above-described sensors. The environmental information detection unit 59 detects environmental information around the device 20 and outputs it to the data holding unit 52. The data holding unit 52 records the environment information output from the environment information detection unit 59 in association with the state information. In addition, the sensor for detecting the environmental information is provided not on the data collection device 50 but on the device 20 side, and the environmental information is acquired by the data acquisition unit 51 via the sensor provided on the device 20. Anyway.

The central device 40 outputs train information such as train position information, train speed information, vehicle number information, traveling direction information, and notch information together with time information to the data recording device 60 instead of the data collecting device 50. Anyway. In this case, in the data recording device 60, based on the time information, the state information of each of the plurality of devices 20 recorded in the own device includes train identification information, train position information, train speed information, and vehicle number information. Train information such as traveling direction information and notch information can be recorded in association with each other.

In the state monitoring system 1 according to the present embodiment, the data collection device 50 is provided in each of the plurality of devices 20 from which the terminal device 30 or the central device 40 collects state information. The data collection device 50 may be provided in a device other than the plurality of devices 20 from which the device 40 collects state information, and state information that is not collected by the terminal device 30 or the central device 40 may be collected.

In the state monitoring system 1 according to the present embodiment, the data communication unit 53 transmits all the state information recorded in the data holding unit 52, but the device 20 has an abnormality or a sign of abnormality. When there is no normal time, transmission of state information having a smaller capacity than that at the time of abnormality in which an abnormality or a sign of abnormality has occurred may be performed. In the data communication unit 53, for example, at the normal time, the number of times of transmitting the state information may be reduced, or the state information may be thinned out and transmitted. In addition, during normal times, the capacity of the state information to be acquired may be reduced by setting the period in which the data acquisition unit 51 acquires the state information of the device 20 longer than that at the time of abnormality. Note that whether or not an abnormality or a sign of abnormality has occurred in the device 20 may be determined by an analysis device (not shown) provided in the ground server 80, or when an analysis device is provided on the upper side of the vehicle, You may judge on the vehicle upper side.

According to the state monitoring system 1 according to the present embodiment, the central device 40 that acquires the state information of the device 20 mounted on the vehicle 10 and the data that records the state information of the device 20 acquired by the data acquisition unit 51. A data collection device 50 having a holding unit 52 and a data communication unit 53 that transmits the status information recorded in the data holding unit 52; a part of the status information of the device 20 output from the central device 40; Since the data recording device 60 that records the status information transmitted via the data communication unit 53 is provided, the central device 40 needs to output all the status information of the device 20 to the data recording device 60. Therefore, the state information of the device 20 mounted on the vehicle 20 can be recorded without increasing the burden on the central device 20.

Further, according to the state monitoring system 1 according to the present embodiment, the data collection device 50 is provided with the collection device identification information for identifying the own device, and the data communication unit 53 associates the collection device identification information with each other. Therefore, even when the data collection device 50 is exchanged, it is possible to easily specify which data collection device 50 is the state information collected by the collection device identification information.

Further, according to the state monitoring system 1 according to the present embodiment, the vehicle 10 is provided with vehicle identification information for identifying the own vehicle, and the data communication unit 53 is associated with the vehicle identification information. Therefore, it is possible to easily identify which vehicle 10 is equipped with the status information of the device 20 by the vehicle identification information. In addition, even when the device 20 is replaced with the device 20 mounted on another vehicle 10, the vehicle identification information indicates state information when the device 20 is mounted on the vehicle 10 before replacement, It is possible to specify whether the information is state information when mounted on the vehicle 10.

In addition, according to the state monitoring system 1 according to the present embodiment, the device 20 is assigned device identification information for identifying the device itself, and the data communication unit 53 is associated with the device identification information. Therefore, even when the device 20 is replaced with another device 20 due to deterioration or the like, it is possible to easily specify the status information of the device 20 before and after the replacement by the device identification information. it can. Even when a plurality of devices 20 of the same type are included in the plurality of devices 20, they can be individually specified by the device identification information.

Further, according to the state monitoring system 1 according to the present embodiment, the data communication unit 53 transmits state information associated with time information indicating the time when the data acquisition unit 51 acquires the state information. It is possible to specify when the state information of the device 20 is the state information. In addition, since the status information of the device 20 can be grasped in time series, the status information when an abnormality has occurred can be identified, and the cause of the abnormality can be analyzed efficiently. .

Further, according to the state monitoring system 1 according to the present embodiment, the data communication unit 53 transmits state information by wireless communication, and therefore does not require wiring installation work or the like as compared with wired transmission. In addition, the status information can be easily transmitted and the work load can be reduced.

Further, according to the state monitoring system 1 according to the present embodiment, the vehicle 10 is equipped with a plurality of devices 20, and a plurality of data collection devices 50 are provided for each of the plurality of devices 20, and a plurality of data collections are performed. Since each status information recorded in each data holding unit 52 of the device 50 is recorded in the data recording device 60, the data recording device 60 records all the status information of the plurality of devices 20 together. Can do.

Further, according to the state monitoring system 1 according to the present embodiment, the plurality of data collection devices 50 acquire the state information of other devices 20 other than the plurality of devices 20 from which the central device 40 acquires the state information. Since the data collection device 50 is included, the state information of the device 20 that is not acquired by the central device 40 can also be recorded.

Further, according to the state monitoring system 1 according to the present embodiment, each state information recorded in each data holding unit 52 is aggregated in one data collection device 50 among the plurality of data collection devices 50. The data collection device 50 in which the respective state information is aggregated outputs the respective state information to the data recording device 60. Therefore, the data recording device 60 receives the aggregated state information from one data collection device 50. Can be recorded.

Further, according to the state monitoring system 1 according to the present embodiment, since a plurality of devices 20 include devices 20 of different models, aggregated state information recorded in the data recording device 60 is used. Thus, various diagnoses such as abnormality diagnosis can be efficiently performed on the status information of each of the plurality of devices 20 including different models.

Further, according to the state monitoring system 1 according to the present embodiment, the data communication unit 53 of the data collection device 50 sequentially transmits state information to other data collection devices 50 by wireless communication, thereby Each status information is aggregated in one of the data collection devices 50, and the data collection device 50 in which each status information is aggregated outputs each status information to the data recording device 60. The status information of each of the plurality of devices 20 can be efficiently aggregated into one data collection device 50 and output to the data recording device 60.

Further, according to the state monitoring system 1 according to the present embodiment, the data recording device 60 has train position information indicating the position of the train 100 configured to include the vehicle 10 or vehicle position information indicating the position of the vehicle 10. Since the associated state information is recorded, it is possible to specify which position the train 100 or the vehicle 10 is traveling on is the state information of the device 20.

Further, according to the state monitoring system 1 according to the present embodiment, the data recording device 60 indicates the vehicle number information indicating the number of connected vehicles of the train 100 including the vehicle 10 and the traveling direction of the vehicle 10. The state information in which the traveling direction information is associated with the car number information indicating the car number of the vehicle 10, or the vehicle type information that indicates whether the vehicle 10 is a leading vehicle, an intermediate vehicle, or a trailing vehicle Therefore, even when trains are merged or divided, it is possible to specify what kind of state information of the equipment 20 is mounted on the vehicle 10.

Further, according to the state monitoring system 1 according to the present embodiment, the data recording device 60 records the state information associated with the train identification information for identifying the train 100 configured to include the vehicle 10. Even when trains are merged or divided, it is possible to specify which train 20 is equipped with the state information of the equipment 20.

In addition, according to the state monitoring system 1 according to the present embodiment, the data communication unit 53 is configured so that the data acquisition unit 51 obtains an abnormality or a sign of abnormality in a normal state in which no abnormality or a sign of abnormality has occurred. Since the state information having a smaller capacity than that at the time of abnormality in which a sign of abnormality has occurred is transmitted, it is possible to reduce the capacity of the state information in the normal state and efficiently perform transmission, and the burden on the data communication unit 53 is reduced. Can be reduced.

Further, according to the state monitoring system 1 according to the present embodiment, the data collection device 50 is mounted on another vehicle different from the vehicle 10 of the train 100 configured to include the vehicle 10, and the other vehicle 10 Since the status information transmitted via the data communication unit 53 of the data collection device 50 mounted on the vehicle is recorded in the data recording device 60, it is mounted on the other subsequent vehicles 10 other than the leading vehicle 10a. The status information recorded by the data holding unit 52 of the data collection device 50 can also be recorded in the data recording device 60.

Moreover, according to the state monitoring system 1 which concerns on this Embodiment, since transmission of the state information between the vehicles of the train 100 comprised including the vehicle 10 is performed by radio | wireless communication, between the adjacent vehicles 10 is. Wiring is not necessary. Therefore, even when trains are merged or divided, it is not necessary to newly perform wiring installation work, etc., so it is possible to easily transmit state information between the vehicles 10 and reduce the work load. can do.

Further, according to the state monitoring system 1 according to the present embodiment, a part of the state information of the device 20 acquired by the central device 40 recorded in the data recording device 60 and the data communication unit 53 are transmitted. Since the vehicle upper side wireless communication unit 70 that transmits the state information to the ground side by wireless communication is provided, the state information recorded in the data recording device 60 can be transmitted to the ground side. Thereby, on the ground side, it is possible to analyze the state information of each device 20 using the state information recorded in the data recording device 60 and perform various diagnoses such as abnormality diagnosis of each device 20.

Further, according to the state monitoring system 1 according to the present embodiment, the vehicle-side wireless communication unit 70 includes the central device 40 among the state information transmitted via the data communication unit 53 recorded in the data recording device 60. Since the state information that does not overlap with the part of the state information of the device 20 acquired is transmitted to the ground side by wireless communication, the capacity of the state information to be transmitted to the ground side is reduced, and redundant state information is transmitted. Can be prevented. Thereby, the burden of the vehicle upper side radio | wireless communication part 70 can be reduced.

Further, according to the state monitoring system 1 according to the present embodiment, the data collection device 50 includes the environmental information detection unit 59 that detects environmental information around the device 20, and the data communication unit 53 includes the environmental information detection unit. Since the state information associated with the environment information detected by 59 is transmitted, it is possible to specify under what environment the state information of the device 20 is acquired.

Each device included in the state monitoring system 1 according to the present embodiment includes, for example, a processor, a memory, a receiver, and a transmitter, and the operation of each device can be realized by software. FIG. 6 is a diagram illustrating an example of a hardware configuration that implements the railway vehicle state monitoring system according to the embodiment of the present invention. As shown in FIG. 6, each device included in the railway vehicle state monitoring system 1 according to the embodiment of the present invention includes a processor 201, a memory 202, a receiver 203, and a transmitter 204. Performs calculation and control by software using the received information. The memory 202 stores received information or information and software necessary for the processor 201 to perform calculation and control. The receiver 203 is an interface that receives information from the outside. The transmitter 204 is an interface that transmits information to the outside. Note that a plurality of processors 201, memories 202, receivers 203, and transmitters 204 may be provided.

It should be noted that the present invention is not limited to the above-described embodiment, and each embodiment can be appropriately changed or omitted without departing from the scope of the idea of the present invention.

1. Status monitoring system, 10-10b vehicle, 20-20c equipment, 40 central device, 50-50c data collection device, 51 data acquisition unit, 52 data holding unit, 53 data communication unit, 59 environment information detection unit, 60 data recording Equipment, 70 car upper side radio communication part, 80 ground server, 100 train

Claims

A central device for obtaining status information of equipment mounted on the vehicle;
A data collection device having a data holding unit that records the status information of the device acquired by a data acquisition unit, and a data communication unit that transmits the status information recorded in the data holding unit;
A data recording device for recording the state information of a part of the device output from the central device and the state information transmitted via the data communication unit;
A state monitoring system for railway vehicles.
The data collection device is provided with collection device identification information for identifying the device itself,
The railway vehicle state monitoring system according to claim 1, wherein the data communication unit transmits the state information associated with the collection device identification information.
The vehicle is provided with vehicle identification information for identifying the vehicle,
The railway vehicle status monitoring system according to claim 1 or 2, wherein the data communication unit transmits the status information associated with the vehicle identification information.
The device is provided with device identification information for identifying the device,
4. The railway vehicle state monitoring system according to claim 1, wherein the data communication unit transmits the state information associated with the device identification information. 5.
The said data communication part transmits the said status information matched with the time information which shows the time when the said data acquisition part acquired the said status information, The any one of Claim 1 to 4 characterized by the above-mentioned. The state monitoring system for railway vehicles described in 1.
The railway vehicle state monitoring system according to any one of claims 1 to 5, wherein the data communication unit transmits the state information by wireless communication.
The vehicle is equipped with a plurality of devices,
A plurality of the data collection devices are provided for each of the plurality of devices,
The status information recorded in the data holding unit of each of the plurality of data collection devices is recorded in the data recording device, according to any one of claims 1 to 6. The state monitoring system of the described railway vehicle.
The plurality of data collection devices include a data collection device that acquires status information of devices other than the plurality of devices from which the central device acquires the status information. The state monitoring system for railway vehicles described in 1.
Each of the state information recorded in each of the data holding units is aggregated in one of the plurality of data collection devices, the data collection device,
The railway vehicle state monitoring system according to claim 7 or 8, wherein the data collection device in which the state information is aggregated outputs the state information to the data recording device.
The railway vehicle state monitoring system according to any one of claims 7 to 9, wherein the plurality of devices include devices of different models.
The data communication unit of the data collection device sequentially transmits the state information to the other data collection devices by wireless communication, so that each of the plurality of data collection devices has the data collection device. The status information of
The railway vehicle according to any one of claims 7 to 10, wherein the data collection device in which the state information is aggregated outputs the state information to the data recording device. State monitoring system.
The data recording device records the state information associated with train position information indicating a position of a train including the vehicle or vehicle position information indicating the position of the vehicle. The state monitoring system for a railway vehicle according to any one of claims 1 to 11.
The data recording device includes vehicle number information indicating the number of connected vehicles of a train including the vehicle, traveling direction information indicating a traveling direction of the vehicle, and car number information indicating a car number of the vehicle. 2. The state information associated with the associated state information or vehicle type information indicating whether the vehicle is a leading vehicle, an intermediate vehicle, or a trailing vehicle is recorded. The state monitoring system for a railway vehicle according to any one of claims 12 to 12.
The said data recording device records the said status information matched with the train identification information which identifies the train comprised including the said vehicle, The Claim 1 characterized by the above-mentioned. The state monitoring system of the described railway vehicle.
In the normal time when the data acquisition unit acquires the status information, the device for which the data acquisition unit acquires the abnormality or a sign of abnormality does not occur. 15. The state monitoring system for a railway vehicle according to any one of claims 1 to 14, wherein state information is transmitted.
The data collection device is mounted on another vehicle different from the vehicle of the train including the vehicle,
16. The status information transmitted through the data communication unit of the data collection device mounted on the other vehicle is recorded in the data recording device. 2. A state monitoring system for a railway vehicle according to claim 1.
The railway vehicle status monitoring system according to claim 16, wherein transmission of the status information between train vehicles including the vehicle is performed by wireless communication.
A vehicle that transmits the status information of a part of the equipment acquired by the central device recorded in the data recording device and the status information transmitted via the data communication unit to the ground side by wireless communication The railway vehicle state monitoring system according to any one of claims 1 to 17, further comprising an upper wireless communication unit.
The vehicle upper side wireless communication unit overlaps the state information of a part of the device acquired by the central device among the state information transmitted through the data communication unit recorded in the data recording device. The railway vehicle status monitoring system according to claim 18, wherein the status information that is not transmitted is transmitted to the ground side by wireless communication.
The data collection device includes an environmental information detection unit that detects environmental information around the device,
The railway according to any one of claims 1 to 19, wherein the data communication unit transmits the state information associated with the environmental information detected by the environmental information detection unit. Vehicle condition monitoring system.