WO2016181543A1 - 鉄道車両の状態監視装置、状態監視システム、及び編成車両 - Google Patents
鉄道車両の状態監視装置、状態監視システム、及び編成車両 Download PDFInfo
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- WO2016181543A1 WO2016181543A1 PCT/JP2015/063848 JP2015063848W WO2016181543A1 WO 2016181543 A1 WO2016181543 A1 WO 2016181543A1 JP 2015063848 W JP2015063848 W JP 2015063848W WO 2016181543 A1 WO2016181543 A1 WO 2016181543A1
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 71
- 238000012544 monitoring process Methods 0.000 title claims description 90
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- 230000002159 abnormal effect Effects 0.000 claims abstract description 56
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- 238000012545 processing Methods 0.000 claims description 210
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- 238000001228 spectrum Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/42—Adaptation of control equipment on vehicle for actuation from alternative parts of the vehicle or from alternative vehicles of the same vehicle train
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0007—Measures or means for preventing or attenuating collisions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F9/00—Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels
- B61F9/005—Rail vehicles characterised by means for preventing derailing, e.g. by use of guide wheels by use of non-mechanical means, e.g. acoustic or electromagnetic devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K13/00—Other auxiliaries or accessories for railways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0081—On-board diagnosis or maintenance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2250/00—Driver interactions
- B60L2250/10—Driver interactions by alarm
Definitions
- the present invention relates to a state monitoring device, a state monitoring system, and a train knitting vehicle, and is suitable for being applied to a state monitoring device and a state monitoring system for monitoring the state of a railway vehicle, and a knitted vehicle having the state monitoring system. .
- Patent Document 1 discloses a derailment detection device that detects derailment of a railway vehicle traveling on a track.
- an acceleration detection unit is installed in each vehicle body of a plurality of vehicles constituting a formation vehicle, and a signal in a specific frequency band is extracted from an output signal (acceleration information) of the acceleration detection unit. Integrate a signal in a specific frequency band repeatedly every predetermined time to calculate an integrated value, and determine vehicle derailment based on the difference between the current integrated value and the integrated value before the predetermined time (threshold determination processing) .
- derailment is determined by performing threshold determination processing based on acceleration information obtained for each vehicle, and therefore, derailment detection is delayed in a vehicle such as an intermediate vehicle in which no crew is on board. To solve the problem and enable rapid and appropriate derailment detection.
- the present invention has been made in view of the above points.
- a state monitoring device and a state monitoring system capable of monitoring an abnormal state of a vehicle and improving driving safety during vehicle operation, and the state monitoring system.
- An attempt is made to propose an organized vehicle having
- sensors are respectively mounted on a plurality of vehicles (for example, vehicles 11A to 11N described later) constituting the formation vehicle.
- a state monitoring device that monitors the state of a vehicle based on sensor signals from the sensor signals (sensor signals 171A to 171N), and a signal detection processing unit (same as above) that detects sensor signals of a plurality of vehicles on which the sensors are mounted.
- Vibration acceleration detection processing unit 101 Vibration acceleration detection processing unit 101
- data extraction unit filter processing unit 102 for extracting vehicle data corresponding to the sensor signal from each sensor signal detected by the signal detection processing unit, One reference value is extracted based on the data of each vehicle extracted by the data extraction unit, and the data of each vehicle with respect to the reference value
- An amplitude ratio calculation processing unit amplitude ratio calculation processing unit 103 that calculates a ratio
- a threshold determination processing unit that determines the presence / absence of an abnormal state of each vehicle based on the result of calculation by the amplitude ratio calculation processing unit.
- the railway vehicle state monitoring device state monitoring device 100
- a data extraction unit for extracting vehicle data corresponding to the sensor signal from the sensor signal, and extracting one reference value based on the data of each vehicle extracted by the data extraction unit, and each vehicle corresponding to the reference value The presence / absence of an abnormal state of each vehicle based on the result of the calculation by the amplitude ratio calculation processing unit and the amplitude ratio calculation processing unit
- Condition monitoring system of the rail vehicle characterized in that it comprises a determining threshold determination processing unit, (e.g., condition monitoring system 1 described later) is provided.
- a knitted vehicle configured by connecting a plurality of vehicles, each of the sensors mounted on the plurality of vehicles constituting the knitted vehicle, and communication with the sensors. And a state monitoring device that monitors the state of the vehicle based on sensor signals from the sensors, and the state monitoring device detects sensor signals of a plurality of vehicles on which the sensors are mounted.
- the present invention it is possible to monitor an abnormal state even for a vehicle on which a driver or a crew member is not on board, and improve traveling safety during vehicle operation.
- FIG. 1 is a block diagram illustrating an example of the overall configuration of a railway vehicle state monitoring system according to a first embodiment. It is a block diagram which shows the hardware structural example of the state monitoring apparatus shown in FIG. It is a flowchart which shows the example of a procedure of the abnormality detection process in 1st Embodiment. It is a figure for demonstrating the process image of the abnormality detection process in 1st Embodiment. It is a block diagram which shows the example of whole structure of the state monitoring system of the rail vehicle which concerns on 2nd Embodiment. It is a block diagram which shows the hardware structural example of the state monitoring apparatus shown in FIG. It is a flowchart which shows the example of a procedure of the abnormality detection process in 2nd Embodiment. It is FIG.
- FIG. (1) for demonstrating an example of the amplitude ratio calculation process in 2nd Embodiment.
- FIG. (2) for demonstrating an example of the amplitude ratio calculation process in 2nd Embodiment.
- FIG. 1 shows an example of the overall configuration of a railway vehicle state monitoring system (state monitoring system 1) according to the first embodiment of the present invention. It is a block diagram.
- the formation vehicle 10 includes a plurality of connected vehicles 11 (11A to 11N).
- the plurality of vehicles 11 can be divided into a leading vehicle 11A on which a driver 90 gets on and performs a driving operation, and intermediate vehicles 11B to 11N connected behind the leading vehicle 11A.
- the trained vehicle 10 may include a tail vehicle at the end opposite to the leading vehicle 11A.
- intermediate vehicles 11B to 11N are connected (knitted) between the leading vehicle 11A and the trailing vehicle.
- the rear vehicle may be regarded as being included in the intermediate vehicles 11B to 11N (that is, one of the intermediate vehicles 11B to 11N).
- the leading vehicle 11 ⁇ / b> A includes a vehicle body 12 and a carriage 13, and the vehicle body 12 and the carriage 13 are supported by a suspension such as an air spring 14.
- the carriage 13 includes a carriage frame 15 corresponding to the framework of the carriage 13 and two rotatable wheel shafts 16, and the leading vehicle 11 ⁇ / b> A moves as the wheel shafts 16 travel on the track.
- the wheel shaft 16 of the vehicle 11 ⁇ / b> B is described as being on a broken line that is off the track (solid line in the horizontal direction), but this is because the vehicle 11 ⁇ / b> B of the trained vehicle 10 is in a derailed state.
- the other vehicles 11A, 11N, etc. described so that the wheel shaft 16 is on the track are not derailed.
- the same suffix (uppercase letters) as the target vehicles 11A to 11N may be added.
- the vehicle body 12 of the leading vehicle 11A can be expressed as a vehicle body 12A
- the vehicle body 12 of the intermediate vehicle 11B can be expressed as a vehicle body 12B.
- a cab 18 for driving the formation vehicle 10 is provided on the vehicle body 12A of the leading vehicle 11A.
- the trained vehicle 10 travels when the driver 90 gets on the leading vehicle 11A and operates the cab 18.
- a state in which the trained vehicle 10 is being driven by the driver 90 is referred to as vehicle operation time.
- the intermediate vehicles 11B to 11N have substantially the same configuration as the leading vehicle 11A except that the cab 18 is not provided.
- the vehicle body 12A is provided with a vibration acceleration sensor 17A for detecting vibration acceleration of the vehicle body 12A in the up / down, left / right or front / rear direction with respect to the traveling direction of the knitted vehicle 10, and the detection result by the vibration acceleration sensor 17A is a sensor
- the signal is output to the state monitoring apparatus 100 as a signal 171A.
- FIG. 1 shows that the same vibration acceleration sensors 17A to 17N are installed on the floors of the vehicle bodies 12A to 12N in each of the vehicles 11A to 11N constituting the formation vehicle 10.
- the detection results by the vibration acceleration sensors 17A to 17N are output to the state monitoring apparatus 100 as sensor signals 171 (individually 171A to 171N).
- FIG. 1 shows that the vibration acceleration sensors 17A to 17N are installed on the floor surfaces of the vehicle bodies 12A to 12N in the vehicles 11A to 11N constituting the formation vehicle 10, the state monitoring according to the present invention.
- the installation configuration of the vibration acceleration sensor 17 in the system is not limited to this, and one or more vibration acceleration sensors 17 may be installed in each of at least two or more vehicles 11. Further, the installation position of the vibration acceleration sensor 17 is not limited to the vehicle body 12.
- the vibration acceleration sensor 17 may be installed on the bogie frame 15 or the wheel shaft 16 of the bogie 13 or mounted on each vehicle 11. It may be installed in an electrical component, an equipment component, or the like. In addition, it is preferably installed in a place where a passenger does not enter (for example, a driver's cab, a crew cabin, or under the floor).
- the configuration of the state monitoring device 100 will be described.
- the state monitoring device 100 is included in the state monitoring system 1 and is installed, for example, in the equipment room or under the floor of a specific vehicle such as the leading vehicle 11A. Note that the state monitoring device 100 does not necessarily have to be installed in the trained vehicle 10, and may be installed in a control room or the like that can communicate with the trained vehicle 10, for example.
- the state monitoring apparatus 100 includes a vibration acceleration detection processing unit 101, a filter processing unit 102, an amplitude ratio calculation processing unit 103, a threshold determination processing unit 104, an alarm generation processing unit 105, and a data recording processing unit 106.
- FIG. 2 is a block diagram showing a hardware configuration example of the state monitoring apparatus shown in FIG.
- the state monitoring apparatus 100 includes a processor 110.
- the processor 110 is a computer and includes a CPU (Central Processing Unit) 111, a RAM (Random Access Memory) 112, an interface 113, a ROM (Read Only Memory) 114, and a card connector 115. Processing by each processing unit (101 to 106) of the state monitoring apparatus 100 is realized by the processor 110 (mainly the CPU 111).
- CPU Central Processing Unit
- RAM Random Access Memory
- ROM Read Only Memory
- the CPU 111 is a central processing unit that controls the inside of the processor 110 by a program, and is connected to the interface 113, the RAM 112, the ROM 114, and the card connector 115 via the bus 116.
- the RAM 112 and the ROM 114 are storage devices that can store data.
- the interface 113 is connected to the vibration acceleration sensor 17 (17A to 17N) installed in the vehicle 11 (11A to 11N), and is also connected to the cab 18.
- a memory card 117 as a storage medium can be attached to the card connector 115, and the processor 110 (particularly the CPU 111) can cause the memory card 117 attached to the card connector 115 to store or read data. it can.
- the card connector 115 may be provided at a position where the driver or the like can directly take out the attached memory card 117, for example, on the surface of the state monitoring device 100.
- the card connector 115 and the memory card 117 are merely examples, and it is only necessary to have a configuration capable of connecting a storage medium capable of storing data.
- FIG. 3 is a flowchart illustrating an example of a procedure of abnormality detection processing according to the first embodiment.
- the abnormality detection process shown in FIG. 3 is executed by the processor 110 (mainly the CPU 111) of the state monitoring apparatus 100 in order to detect an abnormal state of the railway vehicle (the train set 10 in FIG. 1).
- the abnormality detection process will be described in detail with reference to FIG.
- step S100 sensor signals 171 (individually 171A to 171N) are input to the vibration acceleration detection processing unit 101 from the vibration acceleration sensors 17 (17A to 17N) installed in the respective vehicles 11 (11A to 11N).
- step S101 the vibration acceleration detection processing unit 101 applies, to each of the input sensor signals 171A to 171N, a filter (bandpass filter) that passes only a predetermined frequency bandwidth set in advance.
- a vibration acceleration signal 172 (individually 172A to 172N) configured only with a predetermined frequency bandwidth is extracted, and the signal is output to the filter processing unit 102.
- step S102 the filter processing unit 102 extracts a filter (window filter) that extracts a vibration acceleration signal with a preset fixed data length (time width) for each of the input vibration acceleration signals 172A to 172N.
- a filter window filter
- the vibration acceleration signal 173 after filtering (173A to 173N individually) is extracted, and the signal is output to the amplitude ratio calculation processing unit 103.
- the vibration acceleration signal 173 after filtering is referred to as a window filtering signal 173.
- the amplitude ratio calculation processing unit 103 calculates the amplitude ratio (RMS value amplitude ratio) for each vehicle using the vibration acceleration RMS value for each vehicle calculated in step S103. Specifically, for example, the amplitude ratio calculation processing unit 103 calculates the ratio of the respective vibration acceleration RMS values in the other vehicles (intermediate vehicles 11B to 11N) with reference to the vibration acceleration RMS value of the leading vehicle 11A. Based on the calculation result, the amplitude ratio calculation processing unit 103 outputs an amplitude ratio signal 174 (individually 174B to 174N) based on the RMS value amplitude ratio of the intermediate vehicles 11B to 11N to the threshold determination processing unit 104.
- RMS value amplitude ratio amplitude ratio
- N ⁇ 1 amplitude ratio signals 174B to 174N are output to the threshold determination processing unit 104.
- the absolute value of the difference between the vibration acceleration RMS value of the other vehicles is calculated using the vibration acceleration RMS value of the leading vehicle 11A as a reference value.
- a signal based on the calculation result may be output to the threshold determination processing unit 104.
- the calculation processing example using the vibration acceleration RMS value has been described.
- calculation processing using a value other than the RMS value may be performed.
- an average value, maximum value, median value, or integrated value (area) of power spectrum density (PSD: PowerDSpectrum Density) is calculated, and a reference vehicle (for example, the head)
- PSD PowerDSpectrum Density
- a reference vehicle for example, the head
- the amplitude ratio between the calculated value of the vehicle 11A) and the calculated values of the other vehicles (intermediate vehicles 11B to 11N) may be calculated.
- the threshold determination processing unit 104 executes threshold determination processing based on the threshold set in advance for the amplitude ratio signal 174 (174B to 174N) input from the amplitude ratio calculation processing unit 103. To do.
- threshold determination processing for example, the amplitude ratio is divided into levels, and a predetermined level is used as a threshold, and it is determined whether or not the threshold level is exceeded. Also, for example, it is determined whether or not the time that exceeds the threshold level (threshold excess time) exceeds a predetermined time. Then, the threshold determination processing unit 104 outputs a determination processing result signal 175 (individually, 175B to 175N) based on the determination result for each amplitude ratio signal 174 to the alarm generation processing unit 105.
- the alarm signal 176 may be any notification that can identify at least the vehicle in which the abnormal state is detected, but it is preferable that more alarm information is included. Specifically, for example, information that can specify the alarm target intermediate vehicle 11 (that is, the intermediate vehicle 11 corresponding to the amplitude ratio signal 174 determined to have exceeded the threshold value in the threshold determination processing in step S105), or the alarm target It is assumed that the vibration acceleration detected by the intermediate vehicle 11 is alarm information.
- the data recording processing unit 106 records the alarm signal 176 (or alarm information included in the signal) input from the alarm generation processing unit 105 in a storage medium (for example, a memory card 117) in the state monitoring device 100. (Step S107). Further, the data recording processing unit 106 can record various types of vehicle information (for example, images of the in-vehicle camera in the alarm target intermediate vehicle 11 and the state of various devices) together with the alarm signal 176 in the storage medium. preferable.
- vehicle information for example, images of the in-vehicle camera in the alarm target intermediate vehicle 11 and the state of various devices
- the state monitoring apparatus 100 detects the specific vehicle (for example, the leading vehicle 11A) with respect to the plurality of vehicles 11A to 11N constituting the formation vehicle 10. ) Based on the relative value of vibration acceleration (for example, RMS value amplitude ratio), the state of each vehicle 11 can be determined and an abnormal state can be detected.
- specific vehicle for example, the leading vehicle 11A
- vibration acceleration for example, RMS value amplitude ratio
- FIG. 4 is a diagram for explaining a processing image of the abnormality detection processing in the first embodiment.
- FIGS. 4A to 4C show processing images of “vibration acceleration A” based on the sensor signal 171A output from the vibration acceleration sensor 17A of the leading vehicle 11A
- FIGS. 4G to 4I show processing images of “vibration acceleration B” based on the sensor signal 171B output from the vibration acceleration sensor 17B of the intermediate vehicle 11B.
- FIGS. 4G to 4I are output from the vibration acceleration sensor 17N of the intermediate vehicle 11N.
- the processing image of “vibration acceleration N” based on the sensor signal 171N.
- FIGS. 4 (a) to (c) and (j) will be described in detail, and descriptions of FIGS. 4 (d) to (f) and (g) to (i) where similar processing is performed will be omitted. .
- FIG. 4B is a processing image corresponding to step S101 of FIG. 3, and a predetermined frequency bandwidth set in advance for the vibration acceleration 181A of the raw waveform shown in FIG. 4A. It is shown that a band pass filter 182 that passes only the filter is applied.
- FIG. 4C is a processing image corresponding to steps S102 to S103 in FIG.
- a window filter 184 is applied (step S102).
- the RMS value 185A of the vibration acceleration A is calculated based on the vibration acceleration at a plurality of calculation points (step S103).
- “p” is illustrated as a specific value of the RMS value 185A of the vibration acceleration A.
- the RMS value 185B (specifically, the vibration acceleration B (vibration acceleration 181B in FIG. 4D) detected by the intermediate vehicle 11B is detected.
- the RMS value 185N (specific value “r”) for the vibration acceleration N detected by the intermediate vehicle 11N (vibration acceleration 181N in FIG. 4 (g)) is calculated.
- RMS values are similarly calculated for the other intermediate vehicles 11 as well.
- the RMS value amplitude ratio for each vehicle is calculated (step S104).
- FIG. 4 (j) is a processing image corresponding to steps S104 to S105 in FIG.
- the vertical axis represents the RMS value amplitude ratio
- the horizontal axis represents the passage of time.
- FIG. 4J also shows a threshold value 187 (specific value “k”) used in the threshold determination process.
- the RMS value amplitude ratio 186B is the amplitude ratio of the RMS value 185B of the vibration acceleration B with reference to the RMS value 185A of the vibration acceleration A, and is “q / p” as a specific value.
- the RMS value amplitude ratio 186N is the amplitude ratio of the RMS value 185N of the vibration acceleration N with reference to the RMS value 185A of the vibration acceleration A, and is “r / p” as a specific value.
- the RMS value amplitude ratio related to the vibration acceleration A is “p / p”, that is, “1”.
- the RMS value 185B of the vibration acceleration B is relatively larger than the RMS value 185A of the vibration acceleration A (FIG. 4 (f)), and the vibration acceleration N
- the RMS value 185N is almost the same value (FIG. 4 (i)). Therefore, in FIG. 4J, the RMS value amplitude ratio 186B “q / p” for the vibration acceleration B is larger than the RMS value amplitude ratio 186N for the vibration acceleration N (“r / p” at time Xt). It has become.
- the threshold value “k” shown in FIG. 4 (j) is compared with the respective RMS value amplitude ratios 186 (individually, 186B to 186N) to execute threshold value determination processing based on the threshold value (step S105). ).
- the RMS value amplitude ratio 186B (“q / p”) related to the vibration acceleration B at time Xt exceeds the threshold value 187 (“k”), and thus is determined to be abnormal. That is, it can be detected that an abnormality has occurred in the intermediate vehicle 11B on which the vibration acceleration sensor 17B that is the detection source of the vibration acceleration B is mounted (it is in an abnormal state).
- the installation location of the vibration acceleration sensors 17A to 17N, the detection direction of the vibration acceleration eg, up / down, left / right, front / rear direction with respect to the traveling direction
- the content of the abnormality can be selected according to the setting parameter in the processing unit or the level of the RMS value amplitude ratio 186 determined to be an abnormal state.
- the state monitoring system 1 (or the state monitoring device 100) of the first embodiment uses a relative value of vibration acceleration in the knitted vehicle when determining an abnormal state in the abnormality detection processing of FIG. It is said.
- the state monitoring system 1 determines the specific vehicle (leading vehicle 21) on which the driver 90 is riding. Since abnormality detection processing is performed using the relative value of vibration acceleration of each vehicle as a reference (RMS value amplitude ratio 186), for example, even during low-speed driving, or even if the infrastructure condition is not good If there is a difference in vibration acceleration between vehicles, it can be detected. That is, according to the state monitoring system 1 (or the state monitoring device 100) of the first embodiment, the influence on the entire vehicle due to the vehicle speed and the infrastructure state can be excluded, so the above problem can be solved with high accuracy. An abnormal state can be detected, and driving safety during vehicle operation can be improved.
- the state monitoring system 1 (or the state monitoring apparatus 100) according to the first embodiment notifies the driver 90 or the like of an alarm when an abnormal state is detected, thereby causing a serious accident that may be caused from the abnormal state. Can be expected to prevent. That is, the state monitoring system 1 (or the state monitoring device 100) according to the present embodiment enables monitoring of an abnormal state even for a vehicle on which a driver or a crew member is not on board, and improves traveling safety during vehicle operation. Can be made.
- the formation vehicle 10 travels by enabling detection of an abnormal state in the vehicle 11 constituting the formation vehicle 10 as described above. It is possible to detect a malfunction of the infrastructure state to be performed. In addition, if the failure of the infrastructure state can be detected at an early stage, the infrastructure can be easily maintained, so that the reliability of the infrastructure is improved.
- FIG. 5 is a block diagram showing an example of the overall configuration of a railway vehicle state monitoring system (state monitoring system 2) according to the second embodiment. is there.
- the configuration of the state monitoring system 2 will be described with a focus on differences from the state monitoring system 1 shown in FIG. 1 with reference to FIG.
- configurations having the same numbers as those in the railway vehicle state monitoring system 1 according to the first embodiment are common to the state monitoring system 1.
- the configuration is shown, and detailed description thereof is omitted.
- the formation vehicle 20 is composed of a plurality of vehicles 21. Specifically, the leading vehicle 21A and intermediate vehicles 21B to 21N (note that the rear vehicle is also included in the intermediate vehicle as in the first embodiment). And.
- the wheel shaft 16 of the vehicle 21 ⁇ / b> B is described as being on a broken line that deviates from the track (solid line in the horizontal direction). This indicates that the vehicle 21 ⁇ / b> B of the trained vehicle 20 is in a derailed state.
- the other vehicles 21A, 21C, 21N, etc. described so that the wheel shaft 16 is on the track are not derailed.
- the vehicle information control device 29A is mounted on the leading vehicle 21A.
- the vehicle information control device 29A relates to all the vehicles 21A to 21N of the formation vehicle 20, and includes basic information on vehicle operation such as travel speed, travel distance, travel position (GPS information: Global Positioning System), and station information during vehicle operation.
- GPS information Global Positioning System
- a device that constantly manages and controls the state of equipment such as a motor, a brake, a door, and an air conditioner mounted on the formation vehicle 20 is controlled by, for example, execution of a program.
- vehicle information control devices 29B to 29N are mounted on the intermediate vehicles 21B to 21N.
- the vehicle information control devices 29B to 29N can collect at least basic information on the vehicle operation, device states, and the like for the vehicles 21B to 21N on which each of them is mounted.
- the vehicle information control devices 29B to 29N are connected so as to be communicable with the vehicle information control device 29A.
- the vehicle information control device 29A is a parent device, and the vehicle information control devices 29B to 29N are child devices.
- the vehicle information control device 29A and the vehicle information control devices 29B to 29N may be devices having equivalent functions, or the vehicle information control device 29A that is the parent machine has the basic information and the device status on the vehicle operation. In order to constantly manage and control etc., a device having more functions than the slave unit may be used.
- the vehicle information control devices 29A to 29N are connected to each other so that they can communicate with each other by wire (or wireless).
- the vehicle information control device 29A can grasp the vehicle information regarding all the vehicles 21A to 21N.
- the vehicle information control device 29A is connected to each of the vehicle information control devices 29B to 29N so as to be able to directly communicate with the vehicle information by radio or the like, so that the vehicle information control device 29A grasps the vehicle information regarding all the vehicles 21A to 21N You may be able to do it.
- vibration acceleration sensors 17A to 17N are installed in the vehicles 21A to 21N.
- sensor signals 171B to 171N based on the vibration acceleration detection results by the vibration acceleration sensors 17B to 17N are not directly output to the state monitoring apparatus 100 as in the first embodiment.
- the state monitoring device After being transmitted to the vehicle information control device 29A mounted on the leading vehicle 21A via the vehicle information control devices 29B to 29N mounted on the host vehicle, the state monitoring device is provided as a sensor signal 271 from the vehicle information control device 29A. 200 is output.
- the sensor signal 171B based on the vibration acceleration detection result by the vibration acceleration sensor 17B of the intermediate vehicle 21B is transmitted to the vehicle information control device 29B and exchanged between the vehicle information control device 29B and the vehicle information control device 29A. It is included in the vehicle information signal 270B and transmitted to the vehicle information control device 29A.
- the vehicle information control device 29B is used in all the intermediate vehicles 21C to 21N in the opposite direction to the leading vehicle 21A. Sensor signals 171C to 171N can also be acquired and transmitted to the vehicle information control device 29A.
- the vehicle information control device 29A then detects the vibration acceleration information detected by the intermediate vehicles 21B to 21N based on the transmitted vehicle information signal 270B (indirectly including the vehicle information signals 270C to 270N).
- the signal 271 is input to the vibration acceleration detection processing unit 201 of the state monitoring device 200.
- the detection result of the vibration acceleration by the vibration acceleration sensor 17A of the leading vehicle 21A is directly input to the vibration acceleration detection processing unit 201 of the state monitoring device 200, as in the first embodiment.
- the detection result by the vibration acceleration sensor 17A of the leading vehicle 21A is also transmitted to the vehicle information control device 29A, and the sensor signal 271 is transmitted to the vibration acceleration detection processing unit 201. You may make it input.
- the vehicle information control device 29A of the leading vehicle 21A inputs the vehicle information signal 273 to the state monitoring device 200 in addition to the sensor signal 271.
- the vehicle information signal 273 includes vehicle information shared by the vehicle information control device 29A (for example, vehicle speed information, installation position information of the vibration acceleration sensor, etc.).
- the state monitoring apparatus 200 can grasp the installation position of the vibration acceleration sensor in each vehicle, the vehicle speed when the vibration acceleration is detected, and the like.
- the vehicle information signal 273 is shown to be input to the amplitude ratio calculation processing unit 203 of the state monitoring device 200. However, in the state monitoring system 2 of the present embodiment, It may be input to another processing unit.
- the state monitoring device 200 is included in the state monitoring system 2 and is installed, for example, in the equipment room or under the floor of a specific vehicle such as the leading vehicle 21A. It should be noted that the state monitoring device 200 does not necessarily have to be installed in the formation vehicle 20, and may be installed in a control room or the like that can communicate with the leading vehicle 21A, for example.
- the state monitoring apparatus 200 includes a vibration acceleration detection processing unit 201, a filter processing unit 202, an amplitude ratio calculation processing unit 203, a threshold determination processing unit 204, an alarm generation processing unit 205, and a data recording processing unit 206. Details of processing by each processing unit will be described later with reference to FIG.
- the state monitoring device 200 performs an abnormal state detection process based on the sensor signal 171A input from the acceleration sensor 17A, the sensor signal 271 and the vehicle information signal 273 input from the vehicle information control device 29A, and detects an abnormal state. Is detected, an alarm signal 276 is output to the vehicle information control device 29A.
- the vehicle information control device 29A to which the alarm signal 276 is input inputs an alarm display signal 277 to the cab 18 and displays an alarm.
- FIG. 6 is a block diagram illustrating a hardware configuration example of the state monitoring apparatus illustrated in FIG.
- the processor 210 of the state monitoring apparatus 200 shown in FIG. 6 is different from the processor 110 of the state monitoring apparatus 100 shown in FIG. 2 in that the vehicle information control device 29A is connected to the interface 213. That is, if the state monitoring device 200 is mounted on the leading vehicle 21A, the state monitoring device 200 outputs sensor signals from the vibration acceleration sensors 17B to 17N in the intermediate vehicles 21B to 21N that are not mounted with the state monitoring device 200. The signal is input to the processor 210 via the vehicle information control device 29A of the mounted leading vehicle 21A.
- the state monitoring system 2 of the second embodiment is configured such that only the leading vehicle 21A inputs and outputs signals to and from the state monitoring device 200.
- a state abnormality can be detected without being influenced by the configuration other than 21A.
- a system configuration in which the vehicle information control device 29A includes the state monitoring device 200 may be adopted. In such a case, the vehicle information control device 29A and the state monitoring device 200 are integrated. Thus, it is possible to design a more compact device, and it is easy to mount in a vehicle where the loading space is limited.
- FIG. 7 is a flowchart showing an example of the procedure of the abnormality detection process in the second embodiment.
- the abnormality detection process shown in FIG. 7 is executed by the processor 210 (mainly the CPU 110) of the state monitoring apparatus 200.
- the abnormality detection process shown in FIG. 5 will be described focusing on the difference from the abnormality detection process (see FIG. 3) described in the first embodiment.
- the vibration acceleration detection processing unit 201 extracts sensor signals 171B to 171N from the sensor signal 271, and outputs sensor signals 171 (individually 171A to 171N) indicating the vibration acceleration detected in each of the vehicles 21A to 21N. Output to the vibration acceleration detection processing unit 201.
- step S201 the vibration acceleration detection processing unit 201 performs band pass filter processing on each of the input sensor signals 171A to 171N, and filters vibration acceleration signals 172 (individually 172A to 172N). To the unit 202.
- the bandpass filter process in step S201 is the same as the process in step S101 in FIG.
- step S202 the filter processing unit 102 performs, for each of the input vibration acceleration signals 172A to 172N, a process of extracting a vibration acceleration signal having a variation data length (time width) by a window filter based on vehicle information,
- the filtered window filtering signal 173 (individually 173A to 173N) is output to the amplitude ratio calculation processing unit 203.
- the process of step S202 is different from the process of step S102 of FIG. 3 in which a window filter having a fixed data length is applied in that a window filter based on vehicle information is applied.
- the filter processing unit 202 generates windows for the vibration acceleration signals 172A to 172N based on vehicle information (for example, vehicle speed information and installation information of vibration acceleration sensors) input from the vehicle information control device 29A to the state monitoring device 200. Change the application position and range of the filter.
- vehicle information for example, vehicle speed information and installation information of vibration acceleration sensors
- the vibration acceleration generated when the trained vehicle 20 travels has different travel positions in the leading vehicle 21A and the intermediate vehicles 21B to 21N. That is, for example, assuming that the vibration acceleration of each of the vehicles 21A to 21N is detected at the same timing, the absolute position of each vehicle at the time of detection (more precisely, the installation position of the vibration acceleration sensors 17A to 17N) is the length of the vehicle. It depends on the vehicle speed. Such a shift between vehicles (between vibration acceleration sensors) can be specified based on vehicle speed information and installation position information of the vibration acceleration sensor.
- the filter processing unit 202 calculates the timing at which the vibration acceleration sensors 17A to 17N of the vehicles 21A to 21N pass a predetermined point based on the vehicle speed information and the installation position information of the vibration acceleration sensors, and each vehicle 21A.
- the vibration acceleration signals 172A to 172N detected at ⁇ 21N the application position (phase) of the window filter is changed for each vehicle.
- the vibration acceleration detection positions (generation positions) of all the vehicles can be made to coincide with each other (for example, FIG. 8A). (See the position of the window filter 281 in (c)).
- the state monitoring apparatus 200 As described above, by matching the detection positions (occurrence positions) of the vibration accelerations of all the vehicles at the predetermined points, the state monitoring apparatus 200 according to the present embodiment is affected by the infrastructure state (starting state, ground, etc.) at the predetermined points. Therefore, the abnormal state can be detected based on the difference in vibration acceleration between the vehicles.
- the filter processing unit 202 adjusts the amount of data obtained by applying the window filter (the amount of data of the window filtering signal 173) by changing the window filter application range (time width to be extracted) according to the vehicle speed. can do.
- vibration acceleration data of an amount necessary for appropriately calculating the calculated value in the subsequent calculation of the vibration acceleration RMS value is obtained in a relatively short time. be able to. Therefore, when the vehicle speed is high, the application range by the window filter is narrower than usual (the extraction time width is shortened), so that it is possible to suppress the accumulation of more data than necessary, and the vibration in step S203
- the calculation amount of the acceleration RMS value can be reduced to reduce the processing load on the processor 210 (see, for example, the time width of the window filter 283 in FIGS. 9A to 9C).
- the vibration acceleration RMS value when the vehicle speed is low, it takes a relatively long time to obtain the amount of vibration acceleration data necessary to appropriately calculate the vibration acceleration RMS value. Therefore, when the vehicle speed is slow, the range of application by the window filter is made wider than usual (the extraction time width is made longer), so that the vibration acceleration RMS value with low reliability is calculated due to insufficient collection of data amount. (For example, see the time width of the window filter 281 in FIGS. 8A to 8C).
- the amplitude calculation processing unit 203 performs amplitude ratio calculation processing.
- step S203 the vibration acceleration RMS value of each vibration acceleration (for each vehicle) is calculated for each of the input window filtering signals 173 (173A to 173N).
- step S204 the RMS value amplitude ratio for each vehicle is calculated based on the vibration acceleration RMS value for each vehicle calculated in step S203, and the amplitude ratio signal 174 based on the RMS value amplitude ratio of the intermediate vehicles 11B to 11N. (Individually, 174B to 174N) are output to the threshold determination processing unit 204.
- step S205 the threshold determination processing unit 204 executes threshold determination processing based on a preset threshold for the amplitude ratio signal 174 (174B to 174N) input from the amplitude ratio calculation processing unit 203. To do.
- step S206 the alarm generation processing unit 206 generates an alarm for generating a warning (alarm) regarding detection of an abnormal state based on the determination processing result signal 175 (175B to 175N) input from the threshold determination processing unit 204. Execute the process.
- the alarm generation processing unit 205 When generating an alarm in the alarm generation process, the alarm generation processing unit 205 outputs an alarm signal 276 to the data recording processing unit 206 and the vehicle information control device 29A.
- the vehicle information control device 29A to which the alarm signal 276 is input inputs an alarm display signal 277 to the cab 18 and displays an alarm.
- the identification of the vehicle in which the abnormal state is detected specifically, for example, the identification of the vehicle in which the abnormal state is detected, the type of the detected abnormal state, the data (vibration acceleration) that is the determination target of the abnormal state, and the like are displayed.
- the vehicle information control device 29A transfers the alarm signal 276 input from the alarm generation processing unit 206 to the vehicle information control devices 29B to 29N mounted on the other vehicles 21B to 21N, so that the trained vehicle 20
- the determination result of the abnormality detection process can be shared among all the vehicles 21A to 21N in which the vehicle information control device 29 is mounted among the vehicles constituting the vehicle.
- the data recording processing unit 206 uses the alarm signal 276 (or alarm information included in the signal) input from the alarm generation processing unit 205 as a storage medium (for example, a memory) To card 117). Further, the data recording processing unit 206 can record various types of vehicle information (for example, video images of in-vehicle cameras and various device states in the intermediate vehicle 11 to be alarmed) together with the alarm signal 176 in the storage medium. preferable.
- steps S203 to S205 and S207 are the same as the processes in steps S103 to S105 shown in FIG. 3, detailed description thereof is omitted. Also, the alarm information included in the alarm signal 276 output in step S206 is the same as the alarm signal 176 in FIG.
- FIG. 8 and 9 are diagrams (No. 1 and No. 2) for explaining an example of the amplitude ratio calculation process in the second embodiment.
- FIG. 8 is a processing image of the amplitude ratio calculation process when the vehicle speed is low
- FIG. 9 is a processing image of the amplitude ratio calculation process when the vehicle speed is high.
- FIG. 8A is a processing image for “vibration acceleration A” based on the sensor signal 171A output from the vibration acceleration sensor 17A of the leading vehicle 21A, and is shown in FIG. 4C shown in the first embodiment.
- FIG. 8B is a processing image for “vibration acceleration B” based on the sensor signal 171B output from the vibration acceleration sensor 17B of the intermediate vehicle 21B.
- FIG. 8B shows the processing image for FIG. 4F shown in the first embodiment.
- FIG. 8C is a processing image for “vibration acceleration N” based on the sensor signal 171N output from the vibration acceleration sensor 17N of the intermediate vehicle 21N, and is the same as FIG. 4I shown in the first embodiment. Equivalent to. Note that FIGS. 9A to 9C are the same, and the description thereof is omitted.
- a window filter 281 having an application range (time width) wider than usual is used. Further, the application position (phase) of the window filter 281 is set to a position earlier in time in FIG. 8B corresponding to the rear intermediate vehicle 21B than in FIG. 8A corresponding to the leading vehicle 21A. Further, in FIG. 8C corresponding to the rear intermediate vehicle 21N, the position is earlier in time. In this way, the detection positions (occurrence positions) of vibration acceleration in all the vehicles 21A to 21N are matched.
- the vibration acceleration RMS value 282 in each vehicle based on the vibration acceleration 183 (183 A to 183 N) extracted with a long data length. (282A to 282N) can be calculated, and the amount of data to be calculated can be adjusted.
- the amplitude ratio calculation processing unit 203 calculates the RMS value amplitude ratio using such vibration acceleration RMS values 282A to 282N, and the threshold determination processing unit 204 performs threshold determination processing based on the RMS value amplitude ratio. be able to.
- a window filter 283 having an application range (time width) narrower than usual is used.
- the application position (phase) of the window filter 283 is set to a position earlier in time in FIG. 9B corresponding to the rear intermediate vehicle 21B than in FIG. 9A corresponding to the leading vehicle 21A.
- FIG. 9C corresponding to the intermediate vehicle 21N at the rear the vehicle is positioned earlier in time. In this way, the detection positions (occurrence positions) of vibration acceleration in all the vehicles 21A to 21N are matched.
- the vibration acceleration RMS value 284 in each vehicle is based on the vibration acceleration 183 (183A to 183N) extracted with a short data length. (284A to 284N) can be calculated, and the amount of data to be calculated can be adjusted. Then, the amplitude ratio calculation processing unit 203 calculates the RMS value amplitude ratio using such vibration acceleration RMS values 284A to 284N, and the threshold value determination processing unit 204 performs threshold value determination processing based on the RMS value amplitude ratio. be able to.
- the vibration acceleration at the same point can be extracted based on the vehicle information such as the vehicle speed and the installation position of the vibration acceleration sensor (see also FIGS. 8 and 9).
- the influence of the infrastructure state (starting state, ground, etc.) at the point is eliminated, and the abnormal state can be detected based on the difference in vibration acceleration between the vehicles.
- the state monitoring system 2 (or the state monitoring device 200) of the second embodiment can perform state monitoring with high accuracy and during vehicle operation. The driving safety can be further improved.
- the state monitoring system 2 (or the state monitoring device 200) of the second embodiment is the same as that of the first embodiment when the vehicle information control device 29A is mounted on the leading vehicle 21A on which the driver 90 gets. Similar to the state monitoring system 1 (or the state monitoring device 100), “relative to vibration acceleration in other vehicles on which the driver 90 is not on board, based on the sensor signal 171A of vibration acceleration on the vehicle on which the driver 90 rides. Therefore, the effect of the first embodiment can also be realized.
- the railway vehicle state monitoring system according to the third embodiment can utilize the same configuration as the railway vehicle state monitoring system according to the first or second embodiment, and an abnormality detection process performed by the state monitoring device. Only some of the processing is different. Therefore, for the sake of brevity, description of parts common to the first or second embodiment is omitted.
- the vibration acceleration sensor is installed in each of at least three vehicles among a plurality of vehicles constituting the formation vehicle.
- FIG. 10 is a flowchart showing an example of the procedure of an abnormality detection process performed by the railway vehicle state monitoring system according to the third embodiment.
- the vibration acceleration RMS value of the leading vehicle is not used as a reference value as in the abnormality detection process in the first or second embodiment, but new based on all vibration acceleration RMS values.
- a reference value generation process for determining a reference value is performed (step S304). Then, the RMS value amplitude ratio of each vehicle is calculated using the newly determined reference value (step S305).
- steps S300 to S303 in FIG. 10 is the same as the processing in steps S100 to S103 in FIG. 3 (or steps S200 to S203 in FIG. 7), and the processing in steps S306 to S308 in FIG. Since this is the same as the processing of S105 to S107 (or steps S205 to S207 in FIG. 7), description thereof will be omitted and only steps S304 and S305 will be described.
- step S304 the amplitude ratio calculation processing unit determines a reference value of the amplitude ratio based on the vibration acceleration RMS value of each vehicle calculated in step S303 (reference value generation process).
- the reference value is determined by a predetermined calculation method (average value, median value, minimum value, etc.) from the vibration acceleration set data detected by the vibration acceleration sensor of each vehicle.
- FIG. 11 is a diagram for explaining an example of the reference value generation process in the third embodiment.
- FIG. 11 shows vibration acceleration RMS values 371A to 371N corresponding to the vehicles (for example, the vehicles 11A to 11N) constituting the formation vehicle, and the average value is determined as the reference value 381.
- step S305 the vibration acceleration RMS value (for example, vibration acceleration RMS value 371A to 371N in FIG. 11) of each vehicle is set with reference to the reference value (for example, reference value 381 in FIG. 11) determined in the reference value generation process. )
- the amplitude ratio signals 174 are threshold determination processing units. Is output.
- the state monitoring apparatus of the third embodiment performs vibration acceleration in the entire knitted vehicle with respect to a plurality of vehicles constituting the knitted vehicle. Since the abnormal state is detected using a relative value based on the above, the abnormal state of all individual vehicles (for example, vehicle derailment, vehicle or infrastructure state) Malfunction, snake behavior, etc.) can be detected.
- the abnormal state is detected based on the relative value of the vibration acceleration between the vehicles, so that it is also described in the first or second embodiment. As described above, it is possible to detect an abnormal state with high accuracy by excluding the influence on the entire vehicle due to the vehicle speed and the infrastructure state, and to improve the traveling safety during the vehicle operation.
- an abnormal state can be detected generically for the individual vehicles constituting the formation vehicle, so that the infrastructure state in which the formation vehicle travels can be detected. If the failure can be detected and the failure of the infrastructure state can be detected at an early stage, the infrastructure can be easily maintained, and the reliability of the infrastructure is improved.
- the present invention is not limited to the above-described embodiments, and includes various modifications.
- the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to one having all the configurations described.
- a part of the configuration of an embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of an embodiment.
- the sensor signal output from the sensor is a sound sensor signal, a strain sensor signal, a thermal sensor signal, or a pressure sensor signal, respectively, and the present invention detects an abnormal state based on these sensor signals. You may make it do. In this way, by making it possible to use various types of sensors, the present invention can use an appropriate sensor according to the type of abnormal state to be detected. Can do.
- each of the above-described configurations, functions, processing units, processing means, and the like may be realized by hardware by designing a part or all of them with, for example, an integrated circuit.
- Each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor.
- Information such as programs, tables, and files for realizing each function can be stored in a storage device such as a memory, a hard disk, and SSD (Solid State Drive), or a storage medium such as an IC card, an SD card, and a DVD.
- control lines and information lines indicate what is considered necessary for the explanation, and not all the control lines and information lines on the product are necessarily shown. In practice, it may be considered that almost all components are connected to each other.
- the present invention is suitable for application to a state monitoring device and a state monitoring system for monitoring the state of a railway vehicle, and a knitted vehicle having the state monitoring system, but is not limited thereto.
- the present invention can be applied to a mobile body system that monitors a state of a mobile body (for example, an elevator, an escalator, a mining dump truck, etc.) that travels on a specific track.
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Abstract
Description
(1-1)状態監視システムの構成
図1は、本発明の第1の実施形態に係る鉄道車両の状態監視システム(状態監視システム1)の全体構成例を示すブロック図である。
図3は、第1の実施形態における異常検知処理の手順例を示すフローチャートである。図3に示す異常検知処理は、鉄道車両(図1の編成車両10)の異常状態を検知するために状態監視装置100のプロセッサ110(主にCPU111)によって実行される。以下では、図3を参照しながら、異常検知処理を詳しく説明する。
以上に説明したように、第1の実施形態の状態監視システム1(又は状態監視装置100)によれば、編成車両10を構成する複数車両11(11A~11N)に搭載された振動加速度センサ17(17A~17N)を用いて、運転士90が乗車する車両(先頭車両11A)における振動加速度のセンサ信号171Aを基準に、運転士90が乗車していない他の車両(中間車両11B~11Nなど)における振動加速度を相対的に判定することによって、当該他の車両において発生する異常状態(例えば、車両の脱線に限らず、車両又はインフラ状態の不具合、及び蛇行動など)を検知することができる。
(2-1)状態監視システムの構成
図5は、第2の実施形態に係る鉄道車両の状態監視システム(状態監視システム2)の全体構成例を示すブロック図である。
図7は、第2の実施形態における異常検知処理の手順例を示すフローチャートである。図7に示す異常検知処理は、状態監視装置200のプロセッサ210(主にCPU110)によって実行される。以下では、図5に示す異常検知処理について、第1の実施形態で説明した異常検知処理(図3参照)との差異を中心に説明する。
以上に説明したように、第2の実施形態の状態監視システム2(又は状態監視装置200)によれば、編成車両20を構成する複数車両21(21A~21N)に搭載された振動加速度センサ17(17A~17N)を用いて、特定車両(車両情報制御装置29Aが搭載された先頭車両21A)における振動加速度のセンサ信号171Aを基準に、他の車両(中間車両11B~11N)における振動加速度を相対的に判定することによって、当該他の車両において発生する異常状態(例えば、車両の脱線、車両又はインフラ状態の不具合、及び蛇行動など)を検知することができる。
本発明の第3の実施形態に係る鉄道車両の状態監視システムについて説明する。第3の実施形態に係る鉄道車両の状態監視システムは、第1又は第2の実施形態に係る鉄道車両の状態監視システムと同様の構成を流用可能であり、状態監視装置で行われる異常検知処理における一部の処理だけが異なっている。したがって、簡略のため、第1又は第2の実施形態と共通する部分は説明を省略する。ただし、第3の実施形態では、編成車両を構成する複数の車両のうち少なくとも3台以上の車両にそれぞれ振動加速度センサが設置されるものとする。
なお、本発明は、上記した実施形態に限定されるものではなく、様々な変形例が含まれる。例えば、上記した実施形態は本発明を分かりやすく説明するために詳細に説明したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。また、ある実施形態の構成の一部を他の実施形態の構成に置き換えることが可能であり、また、ある実施形態の構成に他の実施形態の構成を加えることも可能である。また、各実施形態の構成の一部について、他の構成の追加・削除・置換をすることが可能である。
10,20 編成車両
11,21 車両
11A,21A 先頭車両
11B~11N,21B~21N 中間車両
12 車体
13 台車
14 空気ばね
15 台車枠
16 輪軸
17(17A~17N) 振動加速度センサ
18 運転台
29(29A~29N) 車両情報制御装置
90 運転士
100,200 状態監視装置
101,201 振動加速度検出処理部
102,202 フィルタ処理部
103,203 振幅比率演算処理部
104,204 閾値判定処理部
105,205 アラーム発生処理部
106,206 データ記録処理部
110,210 プロセッサ
111 CPU
112 RAM
113,213 インターフェース
114 ROM
115 カードコネクタ
116 バス
117 メモリーカード
171(171A~171N)、271 センサ信号
172 振動加速度信号
173 振動加速度信号(窓フィルタリング信号)
174 振幅比率信号
175 判定処理結果信号
176 アラーム信号
270(270B~270N),273 車両情報信号
Claims (15)
- 編成車両を構成する複数の車両にそれぞれセンサが搭載され、それぞれの前記センサからのセンサ信号に基づいて車両の状態監視を行う状態監視装置であって、
前記センサが搭載された複数の車両のセンサ信号を検出する信号検出処理部と、
前記信号検出処理部によって検出されたそれぞれのセンサ信号から当該センサ信号に対応する車両のデータを抽出するデータ抽出部と、
前記データ抽出部によって抽出された各車両のデータに基づいて1つの基準値を抽出し、当該基準値に対する各車両のデータの比率を演算する振幅比率演算処理部と、
前記振幅比率演算処理部による演算の結果に基づいて、各車両の異常状態の有無を判定する閾値判定処理部と、
を備えることを特徴とする鉄道車両の状態監視装置。 - 前記閾値判定処理部によって異常状態が有ると判定された場合に、当該判定がなされた車両の異常状態を警告するアラーム発生処理部をさらに備える
ことを特徴とする請求項1記載の状態監視装置。 - 前記編成車両を構成する複数の車両のうち、特定車両と当該特定車両以外の一般車両とに前記センサが搭載され、
前記振幅比率演算処理部は、前記データ抽出部によって抽出された各車両のデータのうち、前記特定車両のデータに基づいて1つの基準値を抽出し、当該基準値に対する前記一般車両のデータの比率を演算し、
前記閾値判定処理部は、前記振幅比率演算処理部による演算の結果に基づいて、前記一般車両の異常状態の有無を判定する
ことを特徴とする請求項1記載の状態監視装置。 - 前記振幅比率演算処理部は、前記データ抽出部によって抽出された各車両のデータの集合から基準値を抽出し、当該基準値に対する各車両のデータの比率を演算する
ことを特徴とする請求項1記載の状態監視装置。 - 前記データ抽出部は、前記信号検出処理部によって検出されたそれぞれのセンサ信号に対して、抽出する周波数帯域を限定するバンドパスフィルタを適用させる第1のフィルタ処理と、抽出するデータ長を限定する窓フィルタを適用させる第2のフィルタ処理とを行うことによって、それぞれのセンサ信号に対応する車両のデータを抽出する
ことを特徴とする請求項1記載の状態監視装置。 - 前記窓フィルタによって抽出されるデータ長は、事前に設定された固定のデータ長である
ことを特徴とする請求項5記載の状態監視装置。 - 前記窓フィルタによって抽出されるデータ長は、編成車両の車両速度に基づいて変動される
ことを特徴とする請求項5記載の状態監視装置。 - 前記データ抽出部は、前記第2のフィルタ処理において、編成車両の車両速度に基づいて前記窓フィルタを適用する位相を車両ごとに変位させる
ことを特徴とする請求項5記載の状態監視装置。 - 編成車両を構成する複数の車両にそれぞれ搭載されるセンサと、
前記センサと通信可能に接続され、それぞれの前記センサからのセンサ信号に基づいて車両の状態監視を行う状態監視装置と、
を備え、
前記状態監視装置は、
前記センサが搭載された複数の車両のセンサ信号を検出する信号検出処理部と、
前記信号検出処理部によって検出されたそれぞれのセンサ信号から当該センサ信号に対応する車両のデータを抽出するデータ抽出部と、
前記データ抽出部によって抽出された各車両のデータに基づいて1つの基準値を抽出し、当該基準値に対する各車両のデータの比率を演算する振幅比率演算処理部と、
前記振幅比率演算処理部による演算の結果に基づいて、各車両の異常状態の有無を判定する閾値判定処理部と、を備える
ことを特徴とする鉄道車両の状態監視システム。 - 前記センサは、前記編成車両を構成する複数の車両のうち、運転士または乗務員が乗車する特定車両と当該特定車両以外の一般車両とにそれぞれ搭載され、
前記状態監視装置において、
前記振幅比率演算処理部は、前記データ抽出部によって抽出された各車両のデータのうち、前記特定車両のデータに基づいて1つの基準値を抽出し、当該基準値に対する前記一般車両のデータの比率を演算し、
前記閾値判定処理部は、前記振幅比率演算処理部による演算の結果に基づいて、前記一般車両の異常状態の有無を判定する
ことを特徴とする請求項9記載の状態監視システム。 - 前記状態監視装置と通信可能な前記特定車両に搭載されて編成車両を構成する各車両に関する車両情報を管理する車両情報制御装置をさらに備え、
前記一般車両に搭載された前記センサからのセンサ信号は、前記車両情報制御装置を介して前記状態監視装置に入力される
ことを特徴とする請求項10記載の状態監視システム。 - 前記センサは、前記車両の車体又は台車に設置される
ことを特徴とする請求項9記載の状態監視システム。 - 前記センサは、振動加速度を検出する振動加速度センサ、音を検出する音センサ、ひずみを測定するひずみゲージ、熱の物理量を測定する熱電対、又は、圧力を検出する圧力センサの少なくとも何れかである
ことを特徴とする請求項9記載の状態監視システム。 - 前記複数の車両に前記音センサが搭載される場合、
前記状態監視装置は、各車両の前記音センサで検出される音のうち、車両の外部で発生した車外音に基づくセンサ信号同士、又は、車両の内部で発生した車内音に基づくセンサ信号同士に基づいて、車両の状態監視を行う
ことを特徴とする請求項13記載の状態監視システム。 - 複数の車両が連結して構成される編成車両であって、
前記編成車両を構成する複数の車両にそれぞれ搭載されるセンサと、
前記センサと通信可能に接続され、それぞれの前記センサからのセンサ信号に基づいて車両の状態監視を行う状態監視装置と、
を備え、
前記状態監視装置は、
前記センサが搭載された複数の車両のセンサ信号を検出する信号検出処理部と、
前記信号検出処理部によって検出されたそれぞれのセンサ信号から当該センサ信号に対応する車両のデータを抽出するデータ抽出部と、
前記データ抽出部によって抽出された各車両のデータに基づいて1つの基準値を抽出し、当該基準値に対する各車両のデータの比率を演算する振幅比率演算処理部と、
前記振幅比率演算処理部による演算の結果に基づいて、各車両の異常状態の有無を判定する閾値判定処理部と、を備え、
前記閾値判定処理部による異常状態の判定結果を前記編成車両の各車両で共有する
ことを特徴とする編成車両。
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018513436A (ja) * | 2016-06-08 | 2018-05-24 | 中▲車▼青▲島▼四方▲車▼▲輛▼研究所有限公司Crrc Qingdao Sifang Rolling Stock Research Institute Co.,Ltd. | Emuトレーンのmpuのためのオフラインの変量のモニタリングシステムおよび方法 |
CN109641602A (zh) * | 2017-07-14 | 2019-04-16 | 株式会社东芝 | 异常检测设备、异常检测方法和非临时性计算机可读介质 |
JP2019135805A (ja) * | 2018-02-05 | 2019-08-15 | 株式会社Jr西日本テクシア | 車両間通信システム |
WO2021106112A1 (ja) * | 2019-11-27 | 2021-06-03 | 株式会社日立製作所 | 乗り物の状態監視装置および状態監視方法 |
WO2021117221A1 (ja) * | 2019-12-13 | 2021-06-17 | 株式会社日立製作所 | 鉄道車両の状態監視分析装置および方法 |
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Families Citing this family (2)
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JP7160190B2 (ja) * | 2019-05-16 | 2022-10-25 | 日本電信電話株式会社 | 異常検出装置、方法、システム及びプログラム |
JP7445406B2 (ja) | 2019-10-21 | 2024-03-07 | 三菱重工業株式会社 | 監視装置、監視方法及びプログラム |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000006807A (ja) * | 1998-06-25 | 2000-01-11 | Hitachi Ltd | 鉄道車両及びその走行時の異常検知方法 |
JP2008046072A (ja) * | 2006-08-21 | 2008-02-28 | Akebono Brake Ind Co Ltd | 鉄道車両の振動データ通信方法 |
JP2008148466A (ja) * | 2006-12-11 | 2008-06-26 | Mitsubishi Heavy Ind Ltd | 軌道系交通システムの異常診断方法及び異常診断システム |
JP2009190841A (ja) * | 2008-02-14 | 2009-08-27 | Murata Mach Ltd | 糸品質測定器及び糸巻取機 |
JP2012078213A (ja) * | 2010-10-01 | 2012-04-19 | Hitachi Ltd | 鉄道車両の状態監視装置及び状態監視方法、並びに鉄道車両 |
-
2015
- 2015-05-14 JP JP2017517557A patent/JP6476287B2/ja active Active
- 2015-05-14 GB GB1718624.8A patent/GB2554014B/en active Active
- 2015-05-14 WO PCT/JP2015/063848 patent/WO2016181543A1/ja active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000006807A (ja) * | 1998-06-25 | 2000-01-11 | Hitachi Ltd | 鉄道車両及びその走行時の異常検知方法 |
JP2008046072A (ja) * | 2006-08-21 | 2008-02-28 | Akebono Brake Ind Co Ltd | 鉄道車両の振動データ通信方法 |
JP2008148466A (ja) * | 2006-12-11 | 2008-06-26 | Mitsubishi Heavy Ind Ltd | 軌道系交通システムの異常診断方法及び異常診断システム |
JP2009190841A (ja) * | 2008-02-14 | 2009-08-27 | Murata Mach Ltd | 糸品質測定器及び糸巻取機 |
JP2012078213A (ja) * | 2010-10-01 | 2012-04-19 | Hitachi Ltd | 鉄道車両の状態監視装置及び状態監視方法、並びに鉄道車両 |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018513436A (ja) * | 2016-06-08 | 2018-05-24 | 中▲車▼青▲島▼四方▲車▼▲輛▼研究所有限公司Crrc Qingdao Sifang Rolling Stock Research Institute Co.,Ltd. | Emuトレーンのmpuのためのオフラインの変量のモニタリングシステムおよび方法 |
CN109641602A (zh) * | 2017-07-14 | 2019-04-16 | 株式会社东芝 | 异常检测设备、异常检测方法和非临时性计算机可读介质 |
JP2019135805A (ja) * | 2018-02-05 | 2019-08-15 | 株式会社Jr西日本テクシア | 車両間通信システム |
JP7100956B2 (ja) | 2018-02-05 | 2022-07-14 | 株式会社Jr西日本テクシア | 車両間通信システム |
JP6990327B2 (ja) | 2019-11-27 | 2022-01-12 | 株式会社日立製作所 | 乗り物の状態監視装置および状態監視方法 |
WO2021106112A1 (ja) * | 2019-11-27 | 2021-06-03 | 株式会社日立製作所 | 乗り物の状態監視装置および状態監視方法 |
JPWO2021106112A1 (ja) * | 2019-11-27 | 2021-12-02 | 株式会社日立製作所 | 乗り物の状態監視装置および状態監視方法 |
JPWO2021117221A1 (ja) * | 2019-12-13 | 2021-12-09 | 株式会社日立製作所 | 鉄道車両の状態監視分析装置および方法 |
JP6997356B2 (ja) | 2019-12-13 | 2022-01-17 | 株式会社日立製作所 | 鉄道車両の状態監視分析装置および方法 |
TWI760001B (zh) * | 2019-12-13 | 2022-04-01 | 日商日立製作所股份有限公司 | 軌道車輛的狀態監視分析裝置及方法 |
WO2021117221A1 (ja) * | 2019-12-13 | 2021-06-17 | 株式会社日立製作所 | 鉄道車両の状態監視分析装置および方法 |
CN114559908A (zh) * | 2022-03-01 | 2022-05-31 | 株洲科盟车辆配件有限责任公司 | 激光检测式脱轨自动制动系统 |
WO2024101946A1 (ko) * | 2022-11-10 | 2024-05-16 | 주식회사 윌로그 | 선박의 해상 운송 환경을 센싱 및 보정하기 위한 장치 및 방법 |
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