WO2016113724A1

WO2016113724A1 - State monitoring device, state monitoring system, and train

Info

Publication number: WO2016113724A1
Application number: PCT/IB2016/051433
Authority: WO
Inventors: 了古谷; 隆夫渡邊; 克行岩崎
Original assignee: 株式会社日立製作所
Priority date: 2015-01-15
Filing date: 2016-03-14
Publication date: 2016-07-21
Also published as: EP3246223A1; EP3246223A4; EP3246223B1

Abstract

Prior art does not disclose a system that automatically records a predetermined place or position, regardless of any sensor information for preventive maintenance, from characteristic sensor information generated in a predetermined place or zone. A state monitoring device that monitors a car state on the basis of a sensor signal and car position information, said device characterized by comprising: a sensor signal detection unit; a sensor signal threshold determination processing unit; a sensor signal threshold-exceeding zone management unit to which the car position information and the determination result from the sensor signal threshold determination processing unit are input, and which measures the number of times a threshold is exceeded in a predetermined zone; and an automatic-recording zone management unit that determines whether said threshold-exceeding frequency in the predetermined zone exceeds a predetermined frequency, and sets said zone as an automatic-recording zone if said threshold-exceeding frequency exceeds the predetermined frequency.

Description

Condition monitoring device, condition monitoring system, and train train

The present invention relates to a state monitoring device, a state monitoring system, and a train train.

As a background art in this technical field, there is JP 2013-164869 A (Patent Document 1). This publication states that “a drive that can accurately detect accidents without making mistakes due to noise or disturbance, and that can make judgments that are suitable for vehicle specifications, driving habits, driving road conditions, and road surface conditions. “To provide a recorder” (see Patent Document 1 [0007]), and as a means for solving the problem, “a camera installed in a vehicle and an acceleration sensor capable of detecting at least two longitudinal accelerations of the vehicle front, rear, left and right” And a storage recorder that stores an image photographed by the camera and an acceleration detected by the acceleration sensor, provided that the acceleration detected by the acceleration sensor exceeds a predetermined threshold for a predetermined time. When this condition is fulfilled, an image is taken for a predetermined time, and a file including the time when the condition is fulfilled and image information photographed within the predetermined time. The predetermined time can be changed by the user specifying the number of times that the acceleration detected in a predetermined sampling period exceeds the threshold continuously. Patent Document 1 [0008] is disclosed.

JP2013-164869A

However, Patent Document 1 discloses a technique for automatically recording a predetermined location or position regardless of any sensor signal for preventive maintenance based on a characteristic sensor signal generated in the predetermined location or section. There is room for improving the efficiency of operations such as operations and maintenance.

In order to solve the above-described problem, an embodiment of the present invention is directed to, for example, vehicle state monitoring based on a sensor signal acquired from a sensor mounted on a vehicle and vehicle position information acquired from a vehicle information control device. A sensor signal detection unit that detects a sensor signal, a sensor signal threshold determination processing unit that determines whether the sensor signal exceeds a predetermined threshold, vehicle position information, and a sensor signal The sensor signal threshold excess section management unit that inputs the determination result by the threshold determination processing section and measures the number of times the threshold is exceeded within a predetermined section, and whether the number of times the threshold is exceeded within the predetermined section has exceeded a predetermined number If the number of times the threshold is exceeded exceeds a predetermined number, the automatic recording section management unit is set to set the predetermined section as an automatic recording section that automatically performs data recording.

According to the present invention, it is possible to provide a state monitoring system that can make operations such as operations and maintenance more efficient.

Example of overall configuration of a railway vehicle state monitoring system according to the first embodiment Configuration example of the hardware system of the state monitoring apparatus shown in FIG. An example of a system configuration for detecting sensor signals in a predetermined section in the overall configuration diagram shown in FIG. Example of status monitoring system flow shown in FIG. Example of sensor signal threshold value determination process shown in FIG. An example of processing of the sensor signal threshold value excess section management unit and the vehicle position information threshold value determination processing unit shown in FIG. An example of the status display result of the status monitoring system shown in FIG. Example of trend display result of status display result shown in FIG. Example of overall configuration of railway vehicle state monitoring system of embodiment 2 System configuration diagram for detecting sensor signals in a predetermined section in the overall configuration diagram shown in FIG. Example of the configuration of the entire railway vehicle state monitoring system according to the third embodiment

In mobile systems (elevators, automobiles, etc.) including railway vehicles, and plant systems (wind power generation, nuclear power generation, etc.) including thermal power plants, a large amount of data is obtained from various sensor signals etc. equipped in each system. It is required to promote work improvement and work efficiency such as operation and maintenance of each system by communicating, accumulating and analyzing.

In this embodiment, a railway vehicle state monitoring system that can be constructed with a simple system configuration is provided, and it is related to any sensor signal for preventive maintenance based on characteristic sensor signals generated in a predetermined place or section. Therefore, it is possible to provide a system for automatically recording a predetermined place and position.

Hereinafter, embodiments will be described with reference to the drawings. In each figure, the same number is given to the component which has a common function, and the duplicate explanation is omitted.

First, the configuration of the entire system of this embodiment will be described with reference to FIG. In FIG. 1, information transmitted to the vehicle information control device 5 from various devices (door 3, underfloor device 4, etc.) including the state monitoring device 2 attached to the railcar 1 is transmitted to the railcar 1 and the ground side. It is stored in the database 8 of the ground side monitoring system 6 through the installed wireless transmission device 7. The ground side monitoring system 6 includes a personal computer 9, an analyzer 10, and a database 8 via a network 11. The ground side monitoring system 6 acquires information from a plurality of vehicles.

Although an example in which the personal computer 9, the analysis device 10, and the database 8 are separated is shown, all or some of them may be configured by one device. For example, you may comprise so that the function implement | achieved by the personal computer 9 and the analyzer 10 may be implement | achieved by one apparatus.

The state monitoring device 2 can input various sensor signals to the state monitoring items required for each railcar 1. In FIG. 1, the vehicle body 13 is used for the purpose of monitoring the riding comfort of the railcar 1. Although the vibration acceleration sensor 12 installed on the floor surface is shown as an example of wired connection, the vibration acceleration sensor 12 may be installed on the carriage 14 of the railway vehicle 1 for the purpose of monitoring abnormality of the track infrastructure and the carriage parts. Furthermore, a noise measuring microphone may be installed on the vehicle body 13 and the carriage 14 of the railway vehicle 1 for the purpose of monitoring abnormalities of the noise inside and outside the railway vehicle 1. Furthermore, a strain sensor may be installed in the vehicle body 13 and the carriage 14 of the railway vehicle 1 for the purpose of monitoring the deterioration of the railway vehicle 1. Various sensors and the state monitoring device 2 may use wireless transmission.

In addition, although the example which acquires information from a rail vehicle is shown in FIG. 1, for example, mobile systems (automobile, elevator, etc.) other than a rail vehicle, or plant systems (thermal power generation, wind power generation, nuclear power generation, etc.), etc. It is also possible to configure so as to acquire information from other than the railway vehicle.

Next, a hardware system configuration example of the state monitoring device 2 in FIG. 1 will be described with reference to FIG.

The state monitoring device 2 includes a processor 30, a switch 31, a display unit 32, and a setting unit 40. The processor 30 includes a CPU (Central Processing Unit) 33, an interface 34, a RAM (Random Access Memory) 35, and a ROM ( Read only memory) 36 and a card connector 37. The CPU 33 of the processor 30 is connected to the interface 34, RAM 35, ROM 36, and card connector 37 via the bus 38, and the card connector 37 is connected to the memory card 39. The interface 34 is connected to the switch 31, the display unit 32, the setting unit 40, various sensors including the vibration acceleration sensor 12, and the vehicle information control device 5. 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. The switch 31, the display unit 32, and the setting unit 40 may be installed on the surface of the state monitoring device 2. Further, the memory card 39 connected to the card connector 37 may be taken out directly from the surface of the state monitoring device 2.

Next, a state diagram of a railway vehicle state monitoring system realized by the state monitoring device of FIG. 2 will be described with reference to FIG. Here, the sensor connected to the state monitoring device 2 is the vibration acceleration sensor 12. In FIG. 3, the vibration acceleration sensor signal 100 a detected by the vibration acceleration sensor 12 is output to the sensor signal detection unit 50 of the state monitoring device 2.
The sensor signal detection unit 50 converts the vibration acceleration sensor signal 100 a into a digital sensor signal 101 a and outputs the digital sensor signal 101 a to the sensor signal threshold determination processing unit 51 and the data transmission / recording processing unit 54.
The sensor signal threshold determination processing unit 51 determines whether or not a preset sensor signal threshold has been exceeded for the digital sensor signal 101a, and then manages the sensor signal threshold determination processing result 102a for sensor signal threshold excess section management. Output to the unit 52 and the data transmission / recording processing unit 54.
The sensor signal threshold value excess section management unit 52 receives the sensor signal threshold value determination processing result 102a and the vehicle position signal 104a of the vehicle information control device 5, and based on the vehicle position signal 104a, exceeds the sensor signal threshold value in a predetermined section, place, and position. The number of times is counted, and the sensor signal threshold value excess number 105 a is output to the vehicle position information threshold value determination processing unit 53. The vehicle information control device 5 may acquire the vehicle position information through detection information by the track circuit, wireless communication with the ground device, or the like.
The vehicle position information threshold determination processing unit 53 inputs the sensor signal threshold excess number 105a and the vehicle position signal 104a, and determines whether the sensor signal threshold excess number 105a exceeds a preset excess number threshold. The determination processing result 106 a is output to the data transmission / recording processing unit 54.
The data transmission / recording processing unit 54 receives the

determination processing 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 processing result 102a and the determination processing result 106a. . Further, the data transmission / recording processing unit 54 inputs the vehicle information signal 107a of the vehicle information control device 5, and based on the

determination processing results

102a and 106a, the digital sensor signal 101a and the vehicle information signal 107a are sent to the memory card 39 of the state monitoring device 2. To record. Further, the data transmission / recording processing unit 54 may be installed on the ground side and provided with means for transmitting the determination processing result 106a or the digital sensor signal 101a and the vehicle information signal 107a to the ground side device by wireless communication. In this case, it is possible to reduce the space and cost for installing the data transmission / recording processing unit 54 and the memory card 39 on the upper side of the vehicle. Further, data transmission / recording can be performed while the vehicle is stopped, so that the processing cost during traveling can be reduced. In particular, it is desirable for railway operation to be performed while the vehicle is stopped at a station or a vehicle maintenance base.
In this way, an automatic recording section for automatically recording data can be set and managed by the vehicle position information threshold value determination processing unit 53 and the data transmission / recording processing unit 54, as will be described later. You may call it an automatic recording section management part.

The vehicle position signal 104a may be applied with station information (for example, a unique station code assigned to each station), km information indicating a travel distance, or a GPS (Global Positioning System) signal. The vehicle information signal 107a may be selected from items required for detailed analysis of the digital sensor signal 101a, such as vehicle travel speed information and GPS information. When the sensor signal threshold value determination processing unit 51 determines that the preset sensor signal threshold value has been exceeded with respect to the digital sensor signal 101a, the sensor signal threshold value determination processing unit 51 outputs an alarm signal to the vehicle information control device 5 to provide a ground side monitoring system. 6 may be configured to output to the personal computer 9. Further, when the vehicle position information threshold value determination processing unit 53 determines that the preset excess number threshold value is exceeded with respect to the sensor signal threshold value excess number 105a, it outputs an automatic recording start signal to the vehicle information control device 5. The system configuration may be such that the data is output to the personal computer 9 of the ground side monitoring system 6.

Next, the state monitoring flow of the railway vehicle will be described using the flowchart of FIG. First, the state monitoring system power-on process 200 is executed, and initial setting 201 such as device error confirmation and threshold parameter reading processing of each device (vehicle information control device 5 and the like) including the state monitoring device 2 is executed. After the initial setting 201 is completed, a sensor signal and vehicle position information detection process 202 is executed, a threshold determination process 203 for the sensor signal is executed, and it is determined whether the threshold is exceeded (204). When the threshold value is exceeded, the record transmission process 205 of the threshold value excess sensor signal is executed. Furthermore, the threshold excess status startup processing 206 is executed, and the threshold excess status is set to ON.

Next, an ON / OFF determination process 207 for the threshold excess status is executed. When the threshold excess status is ON, the threshold excess status fall processing 208 is executed, and further, determination processing 209 is performed to determine whether or not the current vehicle position information acquired from the vehicle information control device 5 already exists in the sensor signal threshold excess segment. Execute. Here, when the current vehicle position information acquired from the vehicle information control device 5 already exists in the sensor signal threshold value excess section, the sensor signal threshold value excess counter update process 210 is executed. When the current vehicle position information acquired from the vehicle information control device 5 does not exist in the sensor signal threshold value excess section, the sensor signal threshold value excess section generation process 211 is newly executed. Next, it is determined whether or not the sensor signal threshold value excess counter has exceeded a preset number of times threshold, and if the threshold value is exceeded, the current vehicle position information is set in the automatic recording interval as an automatic recording interval setting process 213. Set.

Next, it is determined whether or not the current vehicle position information acquired from the vehicle information control device 5 exists in the automatic recording section. Here, when the current vehicle position information acquired from the vehicle information control device 5 is present in the automatic recording section, a sensor signal recording transmission process 215 is executed for automatic recording. For example, the automatic recording section information set by the vehicle position information threshold determination processing unit 53 is compared with the position information acquired from the vehicle information control device 5, and if they match, data transmission to the data transmission / recording processing unit 54 is performed. Allow it. Next, a series of processes after the process 202 are repeatedly executed until the state monitoring system power-off process 217 is executed. When the state monitoring system power supply shutdown process 217 is executed, the system is shut down by executing an update process for the current parameters and the like.

Next, the sensor signal threshold value determination process will be described using the vibration acceleration sensor signal waveform example of FIG. The vibration acceleration waveform 60 has a position on the horizontal axis and an acceleration on the vertical axis, and includes a significant vibration generation section 63. Here, in the sensor signal threshold value determination process, the vibration acceleration threshold value 61 and the vibration acceleration threshold value excess time 62 are set in advance. First, the sensor signal threshold value determination process detects an excess point where the vibration acceleration waveform 60 exceeds the vibration acceleration threshold value 61 for the first time. Next, the sensor signal threshold value determination process determines whether or not the vibration acceleration waveform 60 exceeds the vibration acceleration threshold value excess time 62 on the basis of the point where the vibration acceleration threshold value 61 is exceeded. Output.

Next, by using the vibration acceleration sensor signal waveform example, the sensor signal threshold value excess number example, the vehicle position information example, and the data recording transmission enable / disable signal example in FIG. Each management / processing method of the unit 53 and the data transmission / recording processing unit 54 will be described. FIG. 6 shows the vibration acceleration sensor signal waveform 71 and the distance between the stations AB when the railcar 1 passes through the station A, the station B, the station C, and the station D three times repeatedly with the horizontal axis as the position. The sensor signal threshold value excess number 72, the sensor signal threshold value excess number 73 between stations C, a station code 76 as vehicle position information, and a data recording / transmission permission signal 74 are shown. Here, the vibration acceleration sensor signal waveform is detected between the first station AB and the station CD, between the second station AB and the station CD, and between the third station CD. It is assumed that the signal threshold determination processing unit 51 includes a significant vibration acceleration 75 detected as exceeding the threshold. First, the sensor signal threshold excess section management unit 52 uses the station code 76, which is vehicle position information, based on the significant vibration acceleration 75 generated between the stations A and B, and the sensor signal threshold excess count 72 between the stations A and B. Count. Further, the data transmission / recording processing unit 54 switches the data recording / transmission enable / disable signal 74 from OFF to ON, records a significant vibration acceleration 75 in the memory card 39, and transmits it to the vehicle information control device 5. Next, the sensor signal threshold excess section management unit 52 counts the sensor signal threshold excess count 73 between the stations CD based on the station code 76 based on the significant vibration acceleration 75 generated between the stations CD. Data recording / transmission processing by the data transmission / recording processing unit 54 at this time is as described above.

Next, when traveling the same section for the second time, the sensor signal threshold excess section management unit 52 uses the station code 76 based on the station code 76 due to the significant vibration acceleration 75 generated between the stations A and B and the stations CD. The sensor signal threshold excess number 72 between A and B and the sensor signal threshold excess number 73 between the stations CD are counted. Here, when the threshold of the sensor signal threshold excess number is set to 2 in advance, it is determined that the sensor signal threshold excess number 72 between the stations A and B and the sensor signal threshold excess number 73 between the stations CD have exceeded the threshold. Then, the station code 76 between the stations A and B and the station code 76 between the stations C and D are automatically set as automatic recording section targets.

Next, when traveling the same section for the third time, the threshold excess vibration acceleration 75 is not confirmed between the stations A and B. However, since it is already set as an automatic recording section target, whether or not the threshold excess vibration acceleration 75 has occurred is determined. Regardless, the data transmission / recording processing unit 54 switches the data recording / transmission enable / disable signal 74 from OFF to ON, records the vibration acceleration sensor signal waveform 71 in the memory card 39, and transmits it to the vehicle information control device 5. Further, although the threshold-exceeding vibration acceleration 75 is confirmed between the stations C and D, the data transmission / recording processing unit 54 performs a data recording / transmission permission signal in the same manner as the automatic recording of the vibration acceleration between the stations A and B described above. 74 is switched from OFF to ON, and the vibration acceleration sensor signal waveform 71 is recorded in the memory card 39 and transmitted to the vehicle information control device 5. In this way, the recording section is automatically generated based on the threshold value excess number 72 between the stations A and B, the threshold value excess number 73 between the stations C and D, and the station code 76. Note that the maximum number of times of exceeding the threshold may be selected according to the memory of the state monitoring device 2.
In addition to the station code 76, kilometer information indicating a travel distance, a GPS signal, or the like may be applied. Furthermore, when only the vibration acceleration sensor during traveling is targeted, the vehicle traveling speed can also be subjected to threshold determination processing for the station code 76.

Further, as a method for canceling the automatic recording section, a method for manually canceling from the setting unit 40 of the state monitoring device 2 or the ground side monitoring system 6 may be used. Furthermore, when the threshold excess vibration acceleration 75 is not detected at a preset time or travel distance, a method of automatically canceling from the automatic recording section may be used.

Next, a display method of recorded data will be described using the display screen of FIG. FIG. 7 is a diagram visualizing the vibration occurrence state between a position A and a position B, with the horizontal axis representing the position and the vertical axis representing the time.
Here, taking the vibration acceleration as an example, the gray value of the vibration acceleration distribution 80 is expressed in the figure as the magnitude of the vibration acceleration level. As shown in the figure, when the vibration acceleration level increases, the gray value of the vibration acceleration distribution 80 increases stepwise as shown by the

vibration acceleration distributions

81, 82, and 83, and how much the vibration acceleration level changes in which section. You can see visually. Further, like the vibration acceleration 84, the vibration acceleration level may be expressed as the size of a figure such as a circle. Further, when grasping a specific tendency of the vibration acceleration level 90, by performing the trend analysis range designation 85, it is possible to grasp a trend with the horizontal axis as time and the vertical axis as shown in FIG. These displays may be limited not only by position and time but also by vehicle speed and the like.

In this embodiment, the case where the present invention is applied to a railway vehicle has been described. However, the present invention can be applied to a moving body such as a monorail or an automobile that travels at a specific position or place.

As described above, according to the present embodiment, any sensor signal for preventive maintenance can be used on the basis of a characteristic sensor signal generated in a predetermined place or section without constantly recording / transmitting a sensor signal having a large data capacity. Nevertheless, it is possible to provide a system for automatically recording a predetermined location and position, improve vehicle operation reliability, and increase vehicle maintenance work efficiency.

FIG. 9 shows an example of a railway vehicle state monitoring system according to the second embodiment. In the system configuration diagram of FIG. 9, additional points to the system configuration diagram of FIG. 1 will be described. First, in FIG. 9, not only the railway vehicle 1 but also a railway vehicle 20 is added, and a through passage 21 is installed in the railway vehicle 1 and the railway vehicle 20. The railway vehicle 20 is provided with a state monitoring device 2 'and a vibration acceleration sensor 12', and a sensor signal of the vibration acceleration sensor 12 'is input to the state monitoring device 2'.

Next, a railway vehicle state monitoring system configuration diagram realized by the state monitoring apparatus of FIG. 9 will be described with reference to FIG. In the system configuration diagram of FIG. 10, additional points to the system configuration diagram of FIG. 3 will be described. First, the sensor connected to the state monitoring device 2 ′ installed in the railway vehicle 20 is a vibration acceleration sensor 12 ′. The sensor signal threshold excess section management unit 52 ′ inputs the vehicle position signal 104a of the vehicle information control apparatus 5 via the state monitoring device 2, and based on the vehicle position signal 104a, the sensor signal threshold value in a predetermined section, place, and position. The excess number is counted, and the sensor signal threshold excess number 105a ′ is output to the vehicle position information threshold determination processing unit 53 ′. The vehicle position information threshold value determination processing unit 53 ′ inputs the vehicle position signal 104a of the vehicle information control device 5 through the state monitoring device 2, and the sensor signal threshold value excess number 105a ′ exceeds the preset excess number threshold value. Then, the determination processing result 106a ′ is output to the data transmission / recording processing unit 54 ′. Further, the vehicle position information threshold value

determination processing units

53 and 53 ′ communicate automatic recording section signals 110a indicating the respective automatic recording locations, and automatically share the automatic recording sections set in the

rail vehicles

1 and 20. Data recording / transmission will be implemented. The state monitoring device 2 ′ may have a system configuration that is connected to the state monitoring device 2 via the vehicle information control device 5. Further, the same system configuration may be adopted even if the number of railway vehicles 20 increases.
Further, the number of times that the threshold value is exceeded may be shared between the sensor signal threshold value excess

section management units

52 and 52 ′ to determine the automatic recording location.

As described above, according to the present embodiment, a predetermined data recording location / section detected and set between a plurality of vehicles having different vehicle characteristics is shared between the vehicles in the train set, and is generated in each vehicle. It is possible to provide a system for automatically recording characteristic sensor signals and their changes over time, improve vehicle operation reliability, and increase vehicle maintenance work efficiency.

FIG. 11 shows an example of a railway vehicle state monitoring system according to the third embodiment. In the system configuration diagram of FIG. 11, additional points to the system configuration diagram of FIG. 1 will be described. First, in FIG. 11, not only the railway vehicle 1 but also railway vehicles 1 ′, 1 ″ are added, and the transmission information of each railway vehicle is the

wireless transmission devices

7, 7 ′, 7 ″ and the radio on the ground side. The data is accumulated in the database 8 of the ground side monitoring system 6 via the transmission device 7. Next, the ground side monitoring system 6 is connected to the 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

rail vehicle

1, 1 ′, 1 ″. For example, a common sensor signal for each

rail vehicle

1, 1 ′, 1 ″. It executes so as to set / update the transmission information related to the number of times of exceeding the threshold and the automatic recording section in the

state monitoring devices

2, 2 ′, 2 ″. In addition, it is good also as a system configuration which performs threshold value management update between the wireless transmission device 7, the wireless transmission device 7 ', and the wireless transmission device 7' 'without using the ground side monitoring system 6. Moreover, what is necessary is just to take the same system structure, even if the number of the rail vehicles 1 increases.

As described above, according to the present embodiment, by sharing each predetermined data recording location / section detected and set between a plurality of trains having different vehicle operation states and vehicle maintenance states, a characteristic between each train It is possible to provide a system for automatically recording sensor signals and their changes over time, improve vehicle operation reliability, and increase vehicle maintenance work efficiency.

DESCRIPTION OF SYMBOLS 1 ... Railway vehicle, 2 ... Condition monitoring apparatus, 3 ... Door, 4 ... Underfloor equipment, 5 ... Vehicle information control apparatus, 6 ... Ground side monitoring system, 7 ... Wireless transmission apparatus, 8 ... Database, 9 ... Personal computer, 10 DESCRIPTION OF SYMBOLS ... Analyzing device, 11 ... Network, 12 ... Vibration acceleration sensor, 13 ... Vehicle body, 14 ... Dolly, 20 ... Railway vehicle, 21 ... Passage, 30 ... Processor, 31 ... Switch, 32 ... Display unit, 33 ... CPU, 34 ... Interface, 35 ... RAM, 36 ... ROM, 37 ... Card connector, 38 ... Bus, 39 ... Memory card, 40 ... Setting unit, 50 ... Sensor signal detection unit, 51 ... Sensor signal threshold determination processing unit, 52 ... Sensor signal Threshold excess section management unit, 53... Vehicle position information threshold determination processing unit, 54... Data transmission / recording processing unit, 60. 2 ... vibration acceleration threshold excess time, 63 ... significant vibration occurrence section, 70 ... station, 71 ... vibration acceleration sensor signal waveform, 72 ... threshold excess frequency between stations A and B, 73 ... threshold excess between stations CD Number of times, 74 ... Data recording transmission permission signal, 75 ... Threshold acceleration 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 designation, 90 ... vibration acceleration level, 100a ... vibration acceleration sensor signal, 101a ... digital sensor signal, 102a ... sensor signal threshold determination processing result, 104a ... vehicle position signal, 105a ... sensor signal threshold excess count, 106a ... judgment processing result, 107a ... vehicle information signal, 110a ... automatic recording section signal, 150 ... threshold management update device, 200 ... power on Processing: 201: Initial setting, 202: Sensor signal and vehicle position information detection processing, 203: Sensor signal threshold determination processing, 205: Sensor signal threshold excess sensor signal recording / transmission processing, 206: Sensor signal threshold excess status startup Processing, 207 ... status determination processing, 208 ... sensor signal threshold value excess status falling processing, 210 ... sensor signal threshold value excess counter update processing, 211 ... sensor signal threshold value excess interval generation processing, 213 ... interval setting processing, 215 ... sensor signal Recording / transmission processing, 217 ... Status monitoring system shutdown processing

Claims

A state monitoring device that monitors the state of the vehicle based on a sensor signal acquired from a sensor mounted on the vehicle and position information of the vehicle acquired from a vehicle information control device;
A sensor signal detector for detecting the sensor signal;
A sensor signal threshold determination processing unit for determining whether or not the sensor signal exceeds a predetermined threshold;
Input the position information of the vehicle and the determination result by the sensor signal threshold value determination processing unit, and measure a sensor signal threshold value excess section management unit that measures the number of times the threshold value is exceeded in a predetermined section;
It is determined whether or not the number of times the threshold is exceeded within the predetermined section exceeds a predetermined number. When the number of times the threshold is exceeded exceeds the predetermined number, data recording is automatically performed for the predetermined section. A state monitoring device having an automatic recording section management unit for setting an automatic recording section.
The state monitoring device according to claim 1,
Detecting whether the vehicle is in the automatic recording section,
A state monitoring device that outputs a signal that enables the data recording when the sensor signal exceeds the predetermined threshold or while the vehicle is traveling in the automatic recording section.
The state monitoring device according to claim 1,
The sensor is at least one of a vibration acceleration sensor, a sound level meter, and a strain sensor installed around the vehicle body and carriage of the vehicle, and the position information of the vehicle is a station code set uniquely for each station, A state monitoring device that is at least one kilometer of GPS.
The state monitoring device according to claim 2,
The sensor is at least one of a vibration acceleration sensor, a sound level meter, and a strain sensor installed around the vehicle body and carriage of the vehicle, and the position information of the vehicle is a station code set uniquely for each station, A state monitoring device that is at least one kilometer of GPS.
In the railway vehicle state monitoring device according to claim 4,
A state monitoring device that compares the station code set by the automatic recording section management unit with the station code transmitted from the vehicle information control device, and permits the data recording if they match.
In the state monitoring device according to claim 3, further based on the determination result by the sensor signal threshold determination processing unit and the determination result by the automatic recording section management unit,
A recording unit that records the sensor signal and vehicle traveling speed information acquired from the vehicle information control device, or a determination result by the sensor signal threshold determination processing unit and a determination result by the automatic recording section management unit ,
A state monitoring device including any one of a transmission unit that transmits the sensor signal and the vehicle traveling speed information to the outside by wireless communication.
In the state monitoring device according to claim 5, further based on the determination result by the sensor signal threshold determination processing unit and the determination result by the automatic recording section management unit,
A recording unit that records the sensor signal and vehicle traveling speed information acquired from the vehicle information control device, or a determination result by the sensor signal threshold determination processing unit and a determination result by the automatic recording section management unit ,
A state monitoring device including any one of a transmission unit that transmits the sensor signal and the vehicle traveling speed information to the outside by wireless communication.
In the state monitoring device according to claim 6,
Either the recording unit or the transmission unit is a state monitoring device that is implemented while the vehicle is stopped at a station or a vehicle maintenance base.
A state monitoring system comprising a plurality of the vehicles comprising the state monitoring device according to claim 1 and the vehicle information control device,
Each of the plurality of vehicles includes a wireless communication unit capable of transmitting and receiving data to the outside,
A state monitoring system that updates the predetermined threshold or the predetermined number of times based on a determination result by the sensor signal threshold determination processing unit of the plurality of vehicles or a determination result by the automatic recording section management unit.
The state monitoring system according to claim 9,
A state monitoring system having a ground device capable of receiving the plurality of determination results via wireless communication.
A train train comprising a plurality of the vehicles comprising the state monitoring device according to claim 1 and the vehicle information control device,
A train train that shares the determination results of the sensor signal threshold determination processing units of the plurality of vehicles or the determination results of the automatic recording section management unit among the vehicles.