JP2023121434A - Vehicle state determination system - Google Patents

Abstract

To provide a vehicle state determination system capable of accurately determining a state of a railway vehicle with a simple configuration.SOLUTION: A vehicle state determination system 1 for determining a state of a railway vehicle 2 includes: an inspection pattern storage unit 10 which stores, for each inspection item for inspecting an inspection target in the railway vehicle 2, inspection patterns in each of which a precondition that triggers an inspection and a determination condition for determining whether or not the inspection target is normal are defined; a state information acquisition unit 20 which acquires state information indicating a state of the railway vehicle 2 from a state information storage unit 4; a precondition determination unit 30 which determines, based on the state information acquired from the state information storage unit 4, whether or not the precondition is satisfied; and a determination condition determination unit 40 which determines, when it is determined that the precondition is satisfied, whether or not the determination condition is satisfied on the basis of state information after a predetermined time elapses from the time when the precondition is satisfied.SELECTED DRAWING: Figure 1

Description

There is an application for the application of Article 30, Paragraph 2 of the Patent Law. Publisher name Japan Railway Vehicle Machinery Engineering Association Publication name 2020 National “Vehicles and Machinery” Research Presentation Collection Publication date February 25, 2021 B. Meeting name 2020 National “Vehicles and Machinery” research presentation (sponsored by the Japan Railway Vehicle Machinery Engineering Association) Venue Kikai Shinko Kaikan Open date February 26, 2021 (Date of the meeting Reiwa 3 February 25-26, 2012) C. Meeting name 2020 National “Vehicles and Machinery” research presentation (sponsored by Japan Railway Vehicle Machinery Engineering Association) Venue Online distribution Date of release February 26, 2021 (Date of meeting 2021) February 25-26) D. Publisher name: Japan Railway Vehicle Machinery Engineering Association Publication name: 2021 Association magazine “R&m” November issue Date of issue: November 1, 2021

The present invention relates to a vehicle state determination system for determining the state of railroad vehicles.

Conventionally, rail vehicles are regularly inspected. Automation has been carried out so as to reduce the workload of inspectors who perform such inspections and to allow quantitative inspections. As a technique related to such inspection, for example, there is a technique described in Patent Literature 1, the source of which is given below.

Patent Literature 1 describes an inspection system for inspecting equipment mounted on a railway vehicle. In this inspection system, an on-board device is mounted on a railway vehicle, and the on-board device includes a data storage section, an inspection condition storage section, an inspection reference value storage section, an inspection data extraction section, and an inspection determination section. Data transmitted between the leading vehicle and the following vehicle is recorded in the data storage unit. The inspection condition storage section stores conditions for performing inspection, and the inspection reference value storage section stores reference values for determining inspection results. The inspection data extraction unit extracts data matching the conditions stored in the inspection condition storage unit from data recorded during operation of the railway vehicle, and the inspection determination unit extracts the data extracted by the inspection data extraction unit. The inspection result is determined by comparing the value obtained from the data with the reference value stored in the inspection reference value storage unit.

JP 2017-118617 A

In the inspection system described in Patent Document 1, as described above, data used for inspection is recorded in the railway vehicle, and conditions for performing inspection and reference values for determining inspection results are stored in the railway vehicle. Furthermore, determination of inspection results using these data and conditions is also performed in railway vehicles. For this reason, for example, when it is desired to add inspection items or to change reference values, it is necessary to do so in the railway vehicle. In addition, if there are a plurality of railway vehicles subject to addition of inspection items or change of reference values, it is necessary to perform the inspection for each railway vehicle, which takes several years. Therefore, there is a drawback that the necessary inspection cannot be changed immediately, and the change work requires a lot of labor. Furthermore, it is also necessary to provide various sensors (for example, an overhead line voltage sensor) to measure the inspection results. Therefore, the inspection system described in Patent Literature 1 has room for improvement in performing inspections more simply.

Therefore, there is a demand for a vehicle state determination system capable of accurately determining the state of a railroad vehicle with a simple configuration.

The characteristic configuration of the vehicle state determination system according to the present invention is as follows:
A vehicle state determination system for determining the state of a railroad vehicle,
For each inspection item for inspecting the inspection target of the railway vehicle, an inspection pattern is stored in advance, which defines a precondition serving as a trigger for inspection and a determination condition for determining whether the inspection target is normal. an inspection pattern storage unit in which
a state information acquisition unit that acquires the state information from a state information storage unit that stores the state information indicating the state of the railcar sequentially transmitted from the railcar in operation;
a precondition determination unit that determines whether or not the precondition is satisfied based on the state information acquired from the state information storage unit;
When it is determined that the precondition is satisfied, whether or not the determination condition is satisfied based on the state information after a preset time has elapsed from the time when the precondition is satisfied. a judgment condition judging unit for judging
in that it has

With such a characteristic configuration, it is possible to determine the state of the railcar based on the state information transmitted from the railcar and stored in the state information storage unit. Therefore, when inspecting an inspection object on a railroad vehicle, there is no need to monitor on the railroad vehicle, and there is no need to provide a new sensor or the like. Moreover, even when adding an inspection item or changing a reference value, it may be done in the vehicle state determination system. Therefore, the vehicle condition determination system can replace at least part of the inspection. Therefore, it is possible to reduce the time and effort required for the inspection. Furthermore, since the precondition determination unit determines whether or not the inspection object is normal based on the state information after a predetermined period of time has passed since the precondition was established, for example, the precondition By setting such a condition, it is possible to improve the judgment accuracy compared to the conventional case of simply comparing the data with the reference value. As described above, according to the vehicle state determination system, it is possible to accurately determine the state of a railroad vehicle with a simple configuration.

Also,
The state information includes at least a state of a determination signal used for determination of the inspection item, a state of a first reference signal referred to in determination of the inspection item, and a signal different from the first reference signal, Defined by the state of the second reference signal referred to in the determination of the inspection item,
The test pattern is
the precondition is defined based on at least the state of the determination signal and the state of the first reference signal;
At least the state of the first reference signal and the state of the second reference signal are defined until a predetermined time elapses after the precondition is satisfied,
It is preferable that the determination condition includes a first inspection pattern defined based on the state of the determination signal corresponding to the inspection item after the predetermined time has elapsed.

With such a configuration, the precondition and the judgment condition are defined, and the standby state from the establishment of the precondition to the judgment of whether or not the judgment condition is established is defined. Since many inspection items apply to the first inspection pattern, it is possible to efficiently inspect whether or not the inspection target in the railway vehicle is normal.

Also,
The state information includes at least a state of a determination signal used for determination of the inspection item, a state of a first reference signal referred to in determination of the inspection item, and a signal different from the first reference signal, Defined by the state of the second reference signal referred to in the determination of the inspection item,
The test pattern is
the precondition is defined based on the state of the determination signal, the state of the first reference signal, and the state of the second reference signal;
At least a first waiting time during which the determination signal waits in the state at the time when the precondition is met, and the first waiting time, from when the precondition is met until a predetermined time elapses Defined based on a second waiting time to wait until the state of the determination signal changes after the elapse,
The determination condition may include a second inspection pattern defined based on the state of the determination signal corresponding to the inspection item after the predetermined time has elapsed.

With such a configuration, during standby, by using the second inspection pattern that defines two different standby times, it is possible to inspect an inspection object that has two operations during standby, for example. .

Also,
The state information is defined by a state of a determination signal used for determination of the inspection item and a state of a first reference signal referred to in determination of the inspection item,
The inspection pattern has a third inspection pattern for inspecting the inspection item that needs to be inspected when the desired state information cannot be confirmed a preset number of times,
The third inspection pattern is
the precondition is defined based on the state of the determination signal and the state of the first reference signal;
The determination condition may be defined based on the state of the determination signal according to the inspection item after a predetermined time has elapsed since the precondition was established.

With such a configuration, for example, when there are a plurality of dubious determination results regarding the operation of a specific device, the third system prescribes the preconditions and determination conditions that enable the operation of the specific device to be inspected. By using test patterns, it is possible to properly test a device that has multiple questionable determination results.

Also,
The state information is defined by a state of a determination signal used for determination of the inspection item and a state of a first reference signal referred to in determination of the inspection item,
The inspection pattern has a fourth inspection pattern for inspecting one state of the inspection object according to a plurality of combinations of the states of the determination signal,
The fourth test pattern is
the precondition is defined based on the state of the determination signal and the state of the first reference signal;
It is preferable that the determination condition is defined based on the state of the determination signal.

With such a configuration, a plurality of data (signals) such as a setting table for setting the operation of a specific device (for example, a table for setting the pressure in the brake cylinder or a table for setting the number of brake stages) can be used. By using the fourth inspection pattern that defines the conditions set by the combination, it is possible to inspect the device whose operation is defined by such a setting table.

1 is a block diagram showing the configuration of a vehicle state determination system; FIG. It is a figure which shows an example of an inspection item by a vehicle state determination system. It is a figure which shows an example of an inspection pattern. FIG. 10 is a diagram showing inspection processing using a first inspection pattern; FIG. 10 is a diagram showing inspection processing using a first inspection pattern; FIG. 11 is a diagram showing inspection processing using a second inspection pattern; FIG. 10 is a diagram showing inspection processing using a third inspection pattern; FIG. 11 is a diagram showing inspection processing using a fourth inspection pattern; It is an example of a display screen showing an evaluation result.

A vehicle condition determination system according to the present invention is configured so that a computer can determine the condition of a railway vehicle to be inspected in a periodic inspection. The vehicle state determination system 1 of this embodiment will be described below.

FIG. 1 is a block diagram schematically showing the configuration of a vehicle state determination system 1. As shown in FIG. As shown in FIG. 1, the vehicle condition determination system 1 includes an inspection pattern storage unit 10, a condition information acquisition unit 20, an inspection item setting unit 25, an inspection pattern acquisition unit 27, a precondition determination unit 30, and a determination condition determination unit 40. , an evaluation unit 50, and an inspection pattern input unit 60, and each functional unit is constructed with hardware or software or both with a CPU as a core member in order to perform processing related to determination of the state of the railway vehicle 2 It is The vehicle state determination system 1 is not installed in each railroad vehicle 2, but is provided in a place (for example, a control room) independent of the railroad vehicle 2, and simultaneously processes state information of a plurality of railroad vehicles 2. It is configured. Therefore, the vehicle state determination system 1 is a ground facility installed on the ground, and is configured to be able to simultaneously and automatically process a plurality of train sets.

The inspection pattern storage unit 10 stores in advance an inspection pattern defined by associating a prerequisite with a determination condition for each inspection item for inspecting an inspection target of the railcar 2 . The railway vehicle 2 is a vehicle that runs along a railroad track, and corresponds to an electric train that runs using electricity as power, and a railcar that runs using the output of an internal combustion engine or a steam engine as power. In this embodiment, an electric train will be described as an example of the railway vehicle 2 . The objects to be inspected in the railway vehicle 2 correspond to gauges and devices mounted on the railway vehicle 2 and their operations and functions. Therefore, the inspection items for inspecting the inspection target in the railway vehicle 2 are the operation of the instruments mounted on the railway vehicle 2, the operation of the devices mounted on the railway vehicle 2, the functions of the instruments mounted on the railway vehicle 2, the railway Items for inspecting functions of devices mounted on the vehicle 2 correspond to the items.

A precondition is a condition that triggers inspection of an inspection target. The trigger for inspection corresponds to a command to start inspection. Therefore, the precondition can also be said to be a starting condition for starting the inspection. A judgment condition is a condition for judging whether or not an object to be inspected is normal. Whether or not it is normal means whether or not the instrument or device to be inspected realizes the expected operation and function. Therefore, in the inspection pattern storage unit 10, for each inspection item for inspecting the inspection object, the vehicle condition determination system 1 stores the precondition corresponding to the start condition for starting the inspection, and the instruments and devices to be inspected. Judgment conditions for judging whether or not the intended operation and function are realized are stored in association with each other.

Although the details will be described later, in this embodiment, the inspection pattern is configured to have a plurality of inspection patterns including a first inspection pattern, a second inspection pattern, a third inspection pattern, and a fourth inspection pattern. is configured to select and use from among the first inspection pattern, the second inspection pattern, the third inspection pattern, and the fourth inspection pattern.

FIG. 2 shows an example of inspection items that can be inspected by the vehicle state determination system 1. As shown in FIG. In the example of FIG. 1-No. Up to 36 inspection items are listed. Also, the type of inspection pattern used in the inspection is indicated for each inspection item. Therefore, it is possible to select the inspection pattern to be used according to the inspection item to be inspected. Specifically, for example, when inspecting "No. 1" "air system leak", the "first inspection pattern" is selected, and for example, "No. ±5 seconds)”, the “second inspection pattern” is selected. Further, for example, when inspecting "ATS-SW confirmation handling" of "No. 3", the "third inspection pattern" is selected, and for example, "main controller powering handle-powering command" of "No. 9" is selected. , the "fourth inspection pattern" is selected. Such inspection items and inspection patterns can be input by the inspection pattern input unit 60 (see FIG. 1). can be added by typing

Normally, the periodic inspection of "No. 1", "air system leak", was to check for leaks by putting the ears close to each other. Normally, the periodic inspection of "ATS-SW confirmation handling" of "No. 3" transmits 130 kHz from the testing machine to the onboard child, which is the underfloor equipment of the vehicle, and handles confirmation of the automatic train stop device (pressing the confirmation switch and It was confirmation that the regular brake) could be done. Normally, the periodical inspection of "No. 4", "EB device operation", was to check whether the buzzer of the emergency train device sounded at intervals of 60 ± 5 seconds when a simulated speed signal of a predetermined speed or higher was input. . In this embodiment, at least 81 of the 570 inspection items can be applied to any inspection pattern. In other words, by using the vehicle condition determination system 1 according to the present embodiment, it is possible to replace regular inspections or reduce the inspection frequency of regular inspections, thereby significantly improving inspection efficiency.

Returning to FIG. 1 , the state information acquisition section 20 includes a communication interface that acquires state information from the state information storage section 4 . Here, the state information storage unit 4 is big data in which state information indicating the state of the railcar 2 sequentially transmitted from the railcar 2 in operation is stored. As shown in FIG. 1, a plurality of railcars 2 are in operation within the operating range of a railroad company. Various instruments and devices are mounted on each of the plurality of railway vehicles 2, and transmission and reception of, for example, control signals and operation signals according to the driver's operation are performed with a control unit that controls these gauges and devices. will be Since such control signals and operation signals can grasp the state of the railway vehicle 2, the vehicle state determination system 1 treats them as state information. State information including such control signals and operation signals (hereinafter referred to as "data") is acquired in real time by a data acquisition device (not shown) of the railcar 2 . The state information acquired by the data acquisition device is sequentially transmitted to the monitoring system 3 via the network and stored in the state information storage unit 4 of the monitoring system 3 . The state information stored in the state information storage unit 4 will be used at least after (future) the point of time when it was stored. At this time, the status information is stored together with the time information (time stamp) acquired by the data acquisition device of the railroad vehicle 2 so that it is possible to specify when the status information is. It is preferable to use the proprietary network of the railway company to transmit the status information from the railway vehicle 2 to the monitoring system 3 via the network.

The state information stored in the state information storage unit 4 can also be used by functional units other than the state information acquisition unit 20 . In this case, if access to the state information storage unit 4 concentrates, the processing load of the state information storage unit 4 may increase. Therefore, the state information acquisition unit 20 can be configured to acquire state information from the state information storage unit 4 and store the state information. Of course, it is also possible for the state information acquisition unit 20 to access the state information storage unit 4 and acquire the state information each time it becomes necessary to acquire the state information. The state information acquired by the state information acquisition unit 20 is transmitted to the prerequisite determination unit 30, which will be described later.

Here, in the inspection pattern storage unit 10, inspection patterns used for inspection are shown and stored for each inspection item as described above. Therefore, when an inspection target is to be inspected, the inspection item setting unit 25 should be used to set which inspection item is to be inspected. Information indicating the inspection item set by the inspection item setting unit 25 is transmitted to the inspection pattern acquisition unit 27, and the inspection pattern acquisition unit 27 uses the inspection pattern storage unit 10 for inspection based on the inspection item according to this information. Acquire the test pattern to be used. The inspection pattern acquired by the inspection pattern acquisition unit 27 is transmitted to the prerequisite condition determination unit 30 and the determination condition determination unit 40, which will be described later.

Based on the state information acquired from the state information storage unit 4, the precondition determination unit 30 determines whether or not the precondition is satisfied. The state information is transmitted from the state information acquisition unit 20 to the prerequisite determination unit 30 . Also, the precondition is included in the inspection patterns stored in the inspection pattern storage unit 10 . Furthermore, the test pattern used for the test is transmitted from the test pattern acquisition unit 27 to the prerequisite determination unit 30 . As a result, the precondition determination unit 30 determines whether or not the precondition is satisfied from the state information, that is, whether or not there is a state in which the precondition is satisfied in the data indicated by the state information. . Here, the state information to be determined by the prerequisite determination unit 30 is obtained after the time indicated by the time stamp of the state information that was the determination target when the same inspection item as the inspection item to be inspected this time was inspected last time. It is preferable to use the state information that has been received. The determination result by the precondition determination unit 30 is transmitted to the determination condition determination unit 40, which will be described later.

When it is determined that the precondition is satisfied, the determination condition determination unit 40 determines whether the determination condition is satisfied based on the state information after a preset time has elapsed from the time when the precondition is satisfied. Determine whether or not Whether it is determined that the precondition is established can be identified by the determination result transmitted from the precondition determination unit 30 . The point in time when the precondition is satisfied is the point in time when the precondition is satisfied in the railway vehicle 2, and can be specified by the time stamp of the state information. After a preset time has passed since the precondition was satisfied means that the preset time has passed since the precondition was satisfied in the railway vehicle 2, and the preset time has passed. The time differs for each inspection pattern and is defined by the judgment conditions. The determination condition is included in the inspection pattern that is transmitted from the inspection pattern acquisition unit 27 and used for inspection. Therefore, when it is determined from the determination result transmitted from the precondition determination unit 30 that the precondition is satisfied, the determination condition determination unit 40 sets the precondition from the point in time when the precondition is satisfied in the railway vehicle 2. It is determined whether or not the determination condition included in the inspection pattern transmitted from the inspection pattern acquisition unit 27 is satisfied using the state information having the time stamp after the elapse of time. The determination result by the determination condition determination unit 40 is transmitted to the evaluation unit 50, which will be described later.

Further, when the determination result transmitted from the precondition determination unit 30 indicates that the precondition is not satisfied, the determination condition determination unit 40 determines that the precondition and the determination condition are not satisfied. It is preferable to transmit the determination result to the evaluation unit 50 to be described later.

The evaluation unit 50 evaluates the state of the railcar 2 based on the determination result by the determination condition determination unit 40 . That is, when the determination result transmitted from the determination condition determination unit 40 indicates that the determination condition is satisfied, the evaluation unit 50 evaluates the inspection item according to the determination result as normal. . On the other hand, when the determination result transmitted from the determination condition determination unit 40 indicates that the determination condition is not satisfied, the evaluation unit 50 evaluates the inspection item according to the determination result as requiring confirmation. do. The evaluation unit 50 may be configured to store the evaluation results in the storage unit 50A, or may be configured to display the evaluation results on the display unit 50B. Furthermore, the reporting unit 50C may be configured to report the evaluation result.

Next, inspection patterns used by the vehicle state determination system 1 will be described. FIG. 3 shows features of the inspection pattern used in this embodiment. As shown in FIG. 3, in this embodiment, four inspection patterns, ie, a first inspection pattern, a second inspection pattern, a third inspection pattern, and a fourth inspection pattern are used.

The first inspection pattern is defined for each of the above-described preconditions and determination conditions, and further defines the standby state from when the preconditions are met until when it is determined whether or not the determination conditions are met. It is Therefore, the first inspection pattern corresponds to a pattern in which a precondition, a standby state, and a judgment condition are specified.

The second inspection pattern is defined for each of the above-described preconditions and judgment conditions, and further defines the standby state from when the preconditions are established until it is determined whether or not the judgment conditions are established. However, during this wait, two different wait times are defined. Therefore, the second inspection pattern corresponds to a pattern in which two waiting times different from each other are defined.

The third inspection pattern is used when the status information (status information to be confirmed) corresponding to the driver's operation cannot be confirmed multiple times with respect to the operation of a specific device (for example, an alarm by an automatic train stop system). used for testing. The case where confirmation cannot be performed for a plurality of times means that the target signal is input for a short period of time and cannot be recorded, and therefore it is unclear whether or not the operation was performed correctly. In such a case, a questionable judgment result is obtained. Therefore, the third inspection pattern can inspect the operation of a specific device when there are a plurality of questionable judgment results regarding the operation of the specific device. It corresponds to a pattern in which possible preconditions and judgment conditions are specified. In addition, the third inspection pattern is used not only for inspection of inspection items that need to be judged when the status information to be confirmed cannot be confirmed over a plurality of times, but also for inspection of the desired status information. However, it is also possible to use it for inspection items that require judgment when it cannot be confirmed from the first time to less than the preset number of times, and if the desired status information can be confirmed In addition, it can also be used for inspection of inspection items that require determination.

The fourth test pattern is set by a plurality of combinations of data (signals), such as a setting table for setting the operation of a specific device (for example, a table for setting the pressure in the brake cylinder or a table for setting the number of brake steps). defined conditions. Therefore, the fourth inspection pattern corresponds to a pattern used for determination based on a state defined by a plurality of combinations of signals.

Next, specific examples of the first inspection pattern, the second inspection pattern, the third inspection pattern, and the fourth inspection pattern will be described.

FIG. 4 shows processing of inspection related to "air system leakage" using the first inspection pattern (No. 1 in FIG. 2). In the first inspection pattern, information defining at least the state of the determination signal, the state of the first reference signal, and the state of the second reference signal is used as the state information. A determination signal is a signal used for determination of an inspection item. Therefore, the state of the determination signal corresponds to the state of the signal used for determining the inspection item. The signal state corresponds to a value (analog value) if the signal is an analog signal, and corresponds to a digital value (0 or 1) if the signal is a digital signal. The first reference signal is a signal that is referred to in determining inspection items. The second reference signal is a signal different from the first reference signal and corresponds to a signal referred to in determination of inspection items. Therefore, in the first inspection pattern, at least the determination signal, the first reference signal, and the second reference signal are used. Depending on the inspection item, signals different from those in this example (for example, a third reference signal) may be used as the determination signal, the first reference signal, and the second reference signal.

Moreover, there are cases where a plurality of types of signals are used as the determination signal, the first reference signal, and the second reference signal in one inspection item. In the example of FIG. 4, two determination signals are used: a signal indicating the state of the "first original air damage pressure" and a signal indicating the state of the "second original air damage pressure". The original air damage pressure corresponds to the air pressure that is the source of the brake pressure, the air pressure used for opening and closing the door, and the like. In FIG. 4, the first original air damage pressure indicates the original air damage pressure of one of the two railway cars 2 included in one formation (train formation), and the second original air damage pressure is , shows the original air damage pressure of the other railroad car 2 of the two railroad cars 2 included in one train set (train set). Also, in the example of FIG. 4, a "digital signal" is used as the first reference signal, but a plurality of types of signals may be used. Further, in the example of FIG. 4, a signal indicating the state of the "first brake pressure", a signal indicating the state of the "second brake pressure", and a state of the "parking brake pressure" are used as the "second reference signal". signals are used.

In the first test pattern, preconditions are defined based on at least the state of the determination signal and the state of the first reference signal. In the example of FIG. 4, it is assumed that the "first original air damage pressure" and the "second original air damage pressure", which are the determination signals, are within the range of "P1 [Pa] to P2 [Pa]". Defined as a condition. Also, it is defined as a precondition that the "digital signal", which is the first reference signal, is a fixed value of "0 or 1" depending on the signal. Note that the precondition does not define the "first brake pressure", the "second brake pressure", and the "parking brake pressure" that are used as the second reference signal. Therefore, in the example of FIG. 4, the "first original air damage pressure" is within the range of "P1 [Pa] to P2 [Pa]", and the "second original air damage pressure" is in the range of "P1 [Pa] to P2 [Pa]” and the “digital signal” is at a preset fixed value, the precondition determination unit 30 determines that the precondition for “air system leakage” is satisfied.

To facilitate understanding, the description of this example is included, and in the following description, portions where conditions are defined, that is, portions used as conditions are colored in gray. The state in other ranges (ranges not colored in gray) is not particularly defined and may be anything.

From the time the precondition is satisfied until the predetermined time elapses, the system is in a standby state. is set to the reference value, and the value of the "second original air damage pressure" is set to the reference value of the "second original air damage pressure". Further, the value of the "first brake pressure" that is the second reference signal is set to the initial value of the "first brake pressure", and the value of the "second brake pressure" that is the second reference signal is set to the "second brake pressure". "brake pressure" is set to the initial value.

In the standby state in the first inspection pattern, at least the state of the first reference signal and the state of the second reference signal are defined. In the example of FIG. 4, the predetermined time for the standby state is set in advance (for example, t1 [seconds]). During this predetermined period of time, the "first brake pressure" is stipulated that "the amount of variation with respect to the initial value is within a predetermined range", and the "second brake pressure" is stipulated that "the amount of variation with respect to the initial value is within a predetermined range." within the range”. In the example of FIG. 4, THP1 indicates the predetermined range related to the first brake pressure. Further, THP2 indicates a predetermined range related to the second brake pressure. Further, the "parking brake pressure" is defined to "not change in value" throughout the standby state, and the "digital signal" is defined to "maintain a fixed value" in the precondition. In this standby state, when these regulations are met for a predetermined period of time, the judgment condition judging section 40 judges whether or not the judgment conditions are established.

The determination condition is defined based on the state of the determination signal corresponding to the inspection item after a predetermined time has elapsed. In the example of FIG. 4, as the judgment conditions, the value of the "first original air damage pressure" is defined as "the amount of decrease from the reference value is within a predetermined value", and the value of the "second original air damage pressure" is " The amount of decrease from the reference value is defined as "within a predetermined value". In the example of FIG. 4, the amount of decrease from the reference value related to the first original air damage pressure is indicated by ΔP1, and the predetermined value is indicated by THP3. Also, the amount of decrease from the reference value related to the second original air damage pressure is indicated by ΔP2, and the predetermined value is indicated by THP4. Therefore, the judgment condition judging section 40 determines that ΔP1, which is the amount of decrease from the reference value, which is the value of the "first original air damage pressure" at the time of entering the standby state, is within THP3, which is within the predetermined value, and , when ΔP2, which is the amount of decrease from the reference value, which is the value of the "second original air damage pressure" at the time of entering the standby state, is within THP4, which is within a predetermined value, it is determined that the determination condition is satisfied. do. On the other hand, ΔP1, which is the amount of decrease from the reference value, which is the value of the "first primary air damage pressure" when the standby state is entered, is not within the predetermined value THP3, or the "second air damage pressure" when the standby state is entered. If ΔP2, which is the amount of decrease with respect to the reference value, which is the value of the "original air damage pressure", is not within THP4, which is within the predetermined value, it is determined that the determination condition is not met. Note that the "first brake pressure", "second brake pressure", "parking brake pressure", and "digital signal" are not specified as determination conditions.

The determination result of the determination condition determination unit 40 is transmitted to the evaluation unit 50 . If the determination result of the determination condition determination unit 40 indicates that the determination condition is satisfied, the evaluation unit 50 evaluates that the “air system leakage” is normal, and the determination condition determination unit 40 If it is determined that the determination condition is not met as a result of the determination, it is evaluated that "leakage in the air system" needs to be confirmed.

FIG. 5 shows the processing of "air compressor accumulation time" using the first inspection pattern (No. 15 in FIG. 2). In the example of FIG. 5, information defining the state of the determination signal, the state of the first reference signal, the state of the second reference signal, and the state of the third reference signal is used as the state information. As described above, the judgment signal is a signal used for judgment of inspection items. Further, the first reference signal is a signal referred to in determining an inspection item, and the second reference signal is a signal different from the first reference signal and referred to in determining an inspection item. . The third reference signal is a signal that is different from the first reference signal and the second reference signal and is referred to in determining the inspection item.

In the example of FIG. 5, a signal indicating the state of the "compressor closing contactor" is used as the determination signal. Also, in the example of FIG. 5, a "digital signal" is used as the first reference signal, but a plurality of types of signals may be used. Furthermore, in the example of FIG. 5, a signal indicating the state of the "brake pressure", a signal indicating the state of the "air spring pressure", and a signal indicating the state of the "parking brake pressure" are used as the "second reference signals". is used, and a signal indicating the state of the "original air damage pressure" is used as the "third reference signal".

In the example of FIG. 5, the precondition is that the state of the "compressor closing contactor", which is the determination signal, is "0". Also, it is defined as a precondition that the "digital signal", which is the first reference signal, is a fixed value of "0 or 1" depending on the signal. Furthermore, it is defined as a precondition that the "original air damage pressure", which is the third reference signal, is equal to or greater than "P3 [Pa]". Therefore, in the example of FIG. 5, the state of the "compressor closing contactor" is "0", the "digital signal" is at a preset fixed value, and the "source air damage pressure" is "P3 [Pa]. ', the precondition determination unit 30 determines that the precondition in 'air compressor accumulation time' is met.

In the example of FIG. 5, the standby state is entered when the state of the "compressor closing contactor" changes from "0" to "1". When shifting to this standby state, the value of "brake pressure" is set to the initial value of "brake pressure", and the value of "air spring pressure" is set to the initial value of "air spring pressure".

In the example of FIG. 5, the "brake pressure" in the standby state is stipulated that "the amount of variation from the initial value is within a predetermined range", and the "air spring pressure" is stipulated that "the amount of variation from the initial value is within a predetermined range”. In the example of FIG. 5, the predetermined range related to the brake pressure is indicated by THP5. Further, a predetermined range related to the air spring pressure is indicated by THP6. Also, the "parking brake pressure" is defined to be "0", and the "digital signal" is defined to "maintain a fixed value". Also, in the example of FIG. 5, the time TCM is counted when the state of the "compressor closing contactor" in the standby state is "1". In the standby state, when the state of the "compressor closing contactor" becomes "0", the determination condition determination unit 40 determines whether or not the determination condition is satisfied. On the other hand, in the standby state, other signals ("digital signal", "brake pressure" state signal, "air spring pressure" state signal, "parking brake pressure" state signal, and "original signal") When at least one of the signals indicating the state of "air damage pressure" no longer satisfies the regulation in the standby state, the inspection is terminated.

In the example of FIG. 5, the time TCM (counting result) when the state of the "compressor closing contactor" in the standby state is "1" is defined as "predetermined time or less" as the determination condition. Therefore, the determination condition determining unit 40 determines that the determination condition is established when the time TCM (counting result) is "less than or equal to the predetermined time", and the time TCM (counting result) is not "less than or equal to the predetermined time". In this case, it is determined that the determination condition is not satisfied.

The determination result of the determination condition determination unit 40 is transmitted to the evaluation unit 50 . When the determination result of the determination condition determination unit 40 indicates that the determination condition is established, the evaluation unit 50 evaluates that the "air compressor accumulated time" is normal, and the determination condition determination unit If the judgment result of 40 indicates that the judgment condition is not satisfied, it is evaluated that the "air compressor accumulated time" needs to be confirmed.

Next, the second inspection pattern will be explained. FIG. 6 shows processing of an inspection related to the "emergency train stop device operation" using the second inspection pattern (No. 4 in FIG. 2). Also in the second inspection pattern, information defining at least the state of the determination signal, the state of the first reference signal, and the state of the second reference signal is used as the state information.

In the example of FIG. 6, a signal indicating the state of the "indication lamp" is used as the determination signal. Further, as the first reference signals, a signal indicating the state of "reset operation", a signal indicating the state of "set speed", and a signal indicating the state of "cab selection 'front'" (regulating the front side of the traveling direction of the vehicle) signal state) is used. Furthermore, as the "second reference signal", a signal indicating the state of "brake notch operation", a signal indicating the state of a plurality of "nth data lines" (where n = 1 to 7), and a signal indicating the state of "powering notch operation" A status signal, an "electronic alarm" status signal, is used.

In the second inspection pattern, preconditions are defined based on the state of the determination signal, the state of the first reference signal, and the state of the second reference signal. In the example of FIG. 6, as a precondition, it is defined that the signal indicating the state of the "indicator light" is "0", the signal indicating the state of the "reset operation" is defined to be "0", It is defined that the signal indicating the state of "knitting speed" is "v1" or higher, and the signal indicating the state of "cab selection 'before'" is defined to be "1". Also, as a precondition, it is defined that the signal indicating the state of "brake notch operation" has changed "from 0 to 1 or from 1 to 0", indicating the state of a plurality of "nth data lines". It is defined that the signal (n=1-7) "changed from 0 to 1 or changed from 1 to 0", and the signal indicating the state of "powering notch operation" changed from "0 to 1, Alternatively, it is defined that "changed from 1 to 0", and that the signal indicating the state of the "electronic alarm" changes "changed from 1 to 0". Although not shown, a signal indicating the state of "reset operation", a signal indicating the state of "brake notch operation", a signal indicating the state of "nth data line" (where n=1-7), " At least one of the signals indicating the state of the "electronic alarm device" may satisfy the above conditions. Therefore, in the example of FIG. 6, a signal indicating the state of "reset operation", a signal indicating the state of "brake notch operation", a signal indicating the state of "nth data line" (where n=1-7), Any one of the signals indicating the state of the "electronic alarm" satisfies the above conditions, and the signal indicating the state of the "indication light", the signal indicating the state of the "reset operation", and the "knitting speed" If all of the signals indicating the state of (1) satisfy the above conditions, the precondition determination unit 30 determines that the precondition for the "emergency train stop device operation" is met.

A standby state is established from the establishment of the precondition until a predetermined time elapses, and this standby state is defined based on at least two standby times, a first standby time and a second standby time. The first standby time is the time during which the signal for determination waits in the state at the time when the precondition is established, and the second standby time is the time during which the state of the signal for determination changes after the first standby time has elapsed. It is time to wait until In the example of FIG. 6, it is defined that the signal indicating the state of the "indicator light" is "0 during t2" and changes to "1 within t3 after t2". . Therefore, in this case, t2 corresponds to the first waiting time, and t3 corresponds to the second waiting time.

In addition, in the standby state in the second inspection pattern, it is specified that the signal indicating the state of "reset operation" is "0", and the signal indicating the state of "knitting speed" is specified to be "v1" or higher. It is defined that the signal indicating the state of "cab selection 'before'" is '1'. In addition, the signal indicating the state of "brake notch operation", the signal indicating the state of a plurality of "nth data lines" (where n = 1 to 7), and the signal indicating the state of "powering notch operation" do not change. ”, and the signal indicating the state of the “electronic alarm” is defined to be “0”. In this standby state, when these regulations are fulfilled, the judgment condition judging section 40 judges whether or not the judgment conditions are established.

The determination condition is defined based on the state of the determination signal corresponding to the inspection item after a predetermined time has elapsed. In the example of FIG. 6, the determination condition is that the signal indicating the state of the "indicator lamp" is "1". Therefore, the determination condition determining unit 40 determines that the determination condition is satisfied when the signal indicating the state of the "indicator light" is "1", and the signal indicating the state of the "indicator light" is If it is not "1", it is determined that the determination condition is not satisfied.

The determination result of the determination condition determination unit 40 is transmitted to the evaluation unit 50 . If the determination result of the determination condition determination unit 40 indicates that the determination condition is satisfied, the evaluation unit 50 evaluates that the "emergency train stop device operation" is normal, and the determination condition determination unit 40 If the result of the determination is that the determination conditions are not met, the "operation of the emergency train stop device" is evaluated as requiring confirmation.

Next, the third inspection pattern will be explained. The third inspection pattern is an inspection pattern for inspecting inspection items that need to be inspected when desired status information cannot be confirmed a preset number of times. Specifically, for example, an automatic train stop device mounted on a railroad vehicle 2 automatically decelerates or stops the railroad vehicle 2 according to the signal appearance and track conditions. , a test signal is transmitted from the tester to the onboard coil at predetermined time intervals. Along with this, the driver performs a confirmation process consisting of pressing the confirmation switch and operating the service brake, and then presses the reset switch. However, when the reset switch is pressed quickly, the record of the reset operation indicating the pressing may not remain as status information depending on the signal sampling cycle. In such a case, the third inspection pattern is used when there is no record of the reset operation for a predetermined number of times (for example, five times) in succession.

FIG. 7 shows inspection processing related to "ATS-SW confirmation handling" using the third inspection pattern (No. 3 in FIG. 2). In the third inspection pattern, information defining at least the state of the determination signal and the state of the first reference signal is used as the state information.

In the example of FIG. 7, a signal indicating the state of "automatic train stop system alarm" is used as the determination signal. In addition, as the first reference signal, a signal indicating the state of the "automatic train stop device confirmation switch", a signal indicating the state of a plurality of "nth high-speed input data" (where n = 1-4), and "set speed" and a signal indicating the state of "before cab selection".

In the third inspection pattern, preconditions are defined based on the state of the determination signal and the state of the first reference signal. In the example of FIG. 7, as a precondition, it is stipulated that the signal indicating the state of the "automatic train stopping device alarm" is "0", and the signal indicating the state of the "automatic train stopping device confirmation switch" is "0". It is defined that the signal indicating the state of "knitting speed" is "v1 or more", and it is defined that the signal indicating the state of "cab selection 'before'" is "1" be done. Therefore, in the example of FIG. 7, when all of the above conditions are met, the precondition determination unit 30 determines that the precondition in "handle ATS-SW confirmation" is satisfied. In the example of FIG. 7, when the signal indicating the state of "automatic train stop system alarm" changes from "0" to "1", the system shifts to the standby state.

A standby state is established from the establishment of the precondition until the predetermined time elapses. This predetermined time may be several hundred [milliseconds], for example, or may be the same as the sampling period of the signal described above. In the example of FIG. 7, until the signal indicating the state of the "automatic train stop alarm" changes from "1" to "0" or until the signal indicating the state of the "automatic train stop device confirmation switch" changes to "0" to "1", and when a predetermined time (for example, 0.2 seconds) elapses after any one of them changes, the judgment condition judging section 40 judges whether or not the judgment condition is established.

The determination condition is defined based on the state of the determination signal corresponding to the inspection item after a predetermined time has elapsed since the precondition was established. In the example of FIG. 7, it is specified that the signal indicating the state of the "automatic train stop device alarm" is "0" as the judgment condition, and the signal indicating the state of a plurality of "nth high-speed input data" (however, , n=1-4) is defined to be "1". Therefore, the judgment condition judging section 40 determines that the signal indicating the state of the "automatic train stop alarm" is "0" and the plurality of signals indicating the state of the "n-th high-speed input data" (where n= If any one of 1-4) is "1", it is determined that the determination condition is established, and if the signal indicating the state of "automatic train stop device alarm" is not "0", or , and a plurality of signals (where n=1-4) indicating the state of the "n-th high-speed input data" are all "0", it is determined that the determination condition is not met.

The determination result of the determination condition determination unit 40 is transmitted to the evaluation unit 50 . When the determination result of the determination condition determination unit 40 indicates that the determination condition is established, the evaluation unit 50 evaluates that the “ATS-SW confirmation handling” is normal, and the determination condition determination unit 40 If the determination result of (1) indicates that the determination condition is not established, "Confirmation of ATS-SW" is evaluated as confirmation required.

Next, the fourth inspection pattern will be explained. The fourth inspection pattern is an inspection pattern used when inspecting one state of an inspection object according to a combination of states of a plurality of determination signals. Specifically, for example, the powering handle (master) mounted on the railroad vehicle 2 is configured to be switchable to any of a plurality of notches (for example, six steps), but depending on the state (position) of the notch , the pressurized state of each of a plurality of (eg, five) data lines is changed (a table showing such a pressurized state is called a "powering stage number table"). Thereby, the state (position) of the notch can be specified by the state (pressing state) of a plurality of (for example, five) data lines. In addition, the pressurized states of the data lines in the respective notches are configured such that the signal states of at least two data lines out of the plurality of data lines are different from each other. Therefore, in a predetermined notch state, if one of the data lines that should be pressurized is depressurized, there is no relationship between the notch and the state of the data line. A combination will exist. As a result, in the fourth inspection pattern, if a combination that should exist in the relationship between the notch and the data line is detected, it can be determined that there is no abnormality in the function of the master controller. If a combination that does not exist in relation to the state of the data line is detected, it can be determined that there is an abnormality in the function of the master controller.

FIG. 8 shows inspection processing related to "powering steering wheel powering command" using the fourth inspection pattern (No. 9 in FIG. 2). In the fourth test pattern, information defining the state of the determination signal and the state of the first reference signal is used as the state information.

In the example of FIG. 8, the determination signals include a signal indicating the state of the "fifth data line", a signal indicating the state of the "sixth data line", a signal indicating the state of the "seventh data line", and a "powering notch A signal indicating the state of "operating", a signal indicating the state of "forward 1 notch", and a signal indicating the state of "reverse 1 notch" are used. is used.

In the fourth test pattern, preconditions are defined based on the state of the determination signal and the state of the first reference signal. In the example of FIG. 8, the preconditions are a signal indicating the state of the "fifth data line", a signal indicating the state of the "sixth data line", a signal indicating the state of the "seventh data line", and a "forward first It is defined that the signal indicating the state of "notch" and the signal indicating the state of "reverse first notch" are "values that match the power running stage number table". In addition, it is defined that the signal indicating the state of "cab selection 'before'" is '1'. Therefore, in the example of FIG. 8, when all of the above conditions are met, the precondition determining unit 30 determines that the precondition in the "powering handle, powering command" is established. In the example of FIG. 8, when the state of at least one of the plurality of determination signals changes, the device shifts to the standby state.

A standby state is established from the establishment of the precondition until the predetermined time elapses. This predetermined time may be, for example, several [seconds]. In this standby state, a signal indicating the state of the "fifth data line", a signal indicating the state of the "sixth data line", a signal indicating the state of the "seventh data line", and a signal indicating the state of the "powering notch operation". It is defined that the signal indicating the state, the signal indicating the state of "forward first notch", and the signal indicating the state of "reverse first notch" are "not changed". Further, it is defined that the signal indicating the state of "cab selection 'before'" is '1'. Therefore, when a predetermined period of time elapses in the above state for a predetermined period of time after shifting to the standby state, the determination condition determining section 40 determines whether or not the determination condition is established.

The determination condition is defined based on the state of the determination signal corresponding to the inspection item after a predetermined time has elapsed since the precondition was established. In the example of FIG. 8, the determination conditions are a signal indicating the state of the "fifth data line", a signal indicating the state of the "sixth data line", a signal indicating the state of the "seventh data line", and "powering notch operation". , the signal indicating the state of "forward first notch", and the signal indicating the state of "reverse first notch" "conform to the power running stage number table". Also, any signal may be used to indicate the state of 'cab selection 'before''. Therefore, the judgment condition judging section 40 judges that the judgment condition is established when the state of each judgment signal is in the state described above, and determines that the judgment condition is satisfied when the state of each judgment signal is not in the state described above. , it is determined that the determination condition is not established.

The determination result of the determination condition determination unit 40 is transmitted to the evaluation unit 50 . When the determination result of the determination condition determination unit 40 indicates that the determination condition is satisfied, the evaluation unit 50 evaluates that the “powering handle powering command” is normal, and the determination condition determination unit 40 If the determination result indicates that the determination condition is not established, the "powering handle powering command" is evaluated as requiring confirmation.

The vehicle state determination system 1 inspects the inspection object using the inspection pattern corresponding to the inspection item as described above.

The result of inspection using the inspection pattern is evaluated by the evaluation unit 50 as described above. FIG. 9 shows an example of displaying the evaluation results on the display screen of the display unit 50B. FIG. 9 shows an example in which the inspection item is "Confirm ATS-SW". As shown in FIG. 9, in the upper part of the display screen, from the left, "latest judgment date and time" indicating the date and time of the recent inspection, "vehicle" indicating the railway vehicle 2 that has been inspected, and "inspection item". "Inspection item", "Elapsed days since the previous good judgment" indicating the number of days that have passed since the previous evaluation result was normal among the examinations performed so far, "Evaluation result" indicating the current evaluation result are displayed, and the contents thereof are displayed below each item. Specifically, "January 20, 2022" is displayed as the "latest determination date and time", and "123 series" is displayed as the "vehicle". Also, the "inspection item" is "confirmed by ATS-SW", and the "number of days elapsed since the previous good judgment" is "70 days". Also, the “evaluation result” is displayed as “good”.

State information used in this evaluation is shown below the above items on the display screen. In the example of FIG. 9, eight signals included in the state information used in "ATS-SW confirmation handling" are shown. In such state information, the timing at which it is determined that the precondition is satisfied is indicated by "21:48:00". It will be in a standby state for a predetermined time after the precondition is established. After this standby state has elapsed, it is determined whether or not the determination condition is satisfied. In the example of FIG. 9, since the judgment condition is satisfied, "good" is indicated as the "evaluation result". By displaying the evaluation result of the evaluation unit 50 in this way, it is possible to notify the evaluation result.

[Other embodiments]
In the above embodiment, the inspection patterns are described as having the first inspection pattern, the second inspection pattern, the third inspection pattern, and the fourth inspection pattern. , and the fourth inspection pattern, or may be configured to have an inspection pattern other than these. Moreover, each inspection pattern can be configured by appropriately changing the preconditions and determination conditions.

In the above embodiments, specific inspection items have been exemplified for each inspection pattern. It is also possible to configure

In the above-described embodiment, for the first, second, third, and fourth inspection patterns, the precondition, the standby condition, and the determination condition, respectively, are the determination signal and the first reference signal. , the second reference signal, and the third reference signal have been described as examples. These are just examples, and for example, it is possible to use a determination signal for a predetermined inspection item as a reference signal (for example, the first reference signal) for another inspection item, and for example, a reference signal for a predetermined inspection item ( For example, the first reference signal) can be used as a determination signal for other inspection items or another reference signal (for example, the first reference signal). That is, the user can arbitrarily designate the determination signal, the first reference signal, and the second reference signal, respectively, according to the inspection item.

In the above embodiment, the vehicle state determination system 1 has been described as including the evaluation unit 50 , but it is also possible to configure without the evaluation unit 50 . In addition, when the evaluation unit 50 is not provided, the evaluation result by the evaluation unit 50 described above is output by the vehicle state determination system 1 as the determination result of the vehicle state determination system 1 (for example, stored, displayed, or notified). ), or may be configured to be output by the determination condition determination unit 40 (for example, to be stored, displayed, or notified). Of course, it may be configured such that other functional units output.

INDUSTRIAL APPLICABILITY The present invention can be used in a vehicle state determination system that determines the state of railroad vehicles.

1: vehicle state determination system 2: railway vehicle 4: state information storage unit 10: inspection pattern storage unit 20: state information acquisition unit 30: precondition determination unit 40: determination condition determination unit

Claims (5)

A vehicle state determination system for determining the state of a railroad vehicle,
For each inspection item for inspecting the inspection target of the railway vehicle, an inspection pattern is stored in advance, which defines a precondition serving as a trigger for inspection and a determination condition for determining whether the inspection target is normal. an inspection pattern storage unit in which
a state information acquisition unit that acquires the state information from a state information storage unit that stores the state information indicating the state of the railcar sequentially transmitted from the railcar in operation;
a precondition determination unit that determines whether or not the precondition is satisfied based on the state information acquired from the state information storage unit;
When it is determined that the precondition is satisfied, whether or not the determination condition is satisfied based on the state information after a preset time has elapsed from the time when the precondition is satisfied. a judgment condition judging unit for judging
A vehicle state determination system. The state information includes at least a state of a determination signal used for determination of the inspection item, a state of a first reference signal referred to in determination of the inspection item, and a signal different from the first reference signal, Defined by the state of the second reference signal referred to in the determination of the inspection item,
The test pattern is
the precondition is defined based on at least the state of the determination signal and the state of the first reference signal;
At least the state of the first reference signal and the state of the second reference signal are defined until a predetermined time elapses after the precondition is satisfied,
2. The vehicle state determination system according to claim 1, wherein said determination condition includes a first inspection pattern defined based on the state of said determination signal corresponding to said inspection item after said predetermined time has elapsed. The state information includes at least a state of a determination signal used for determination of the inspection item, a state of a first reference signal referred to in determination of the inspection item, and a signal different from the first reference signal, Defined by the state of the second reference signal referred to in the determination of the inspection item,
The test pattern is
the precondition is defined based on the state of the determination signal, the state of the first reference signal, and the state of the second reference signal;
At least a first waiting time during which the determination signal waits in the state at the time when the precondition is met, and the first waiting time, from when the precondition is met until a predetermined time elapses Defined based on a second waiting time to wait until the state of the determination signal changes after the elapse,
3. The vehicle state determination system according to claim 1, wherein the determination condition includes a second inspection pattern defined based on the state of the determination signal corresponding to the inspection item after the predetermined time has elapsed. The state information is defined by a state of a determination signal used for determination of the inspection item and a state of a first reference signal referred to in determination of the inspection item,
The inspection pattern has a third inspection pattern for inspecting the inspection item that needs to be inspected when the desired state information cannot be confirmed a preset number of times,
The third inspection pattern is
the precondition is defined based on the state of the determination signal and the state of the first reference signal;
4. The determination condition according to any one of claims 1 to 3, wherein the determination condition is defined based on the state of the determination signal corresponding to the inspection item after a predetermined time has elapsed since the precondition was established. vehicle condition determination system. The state information is defined by a state of a determination signal used for determination of the inspection item and a state of a first reference signal referred to in determination of the inspection item,
The inspection pattern has a fourth inspection pattern for inspecting one state of the inspection object according to a combination of the states of the plurality of judgment signals,
The fourth test pattern is
the precondition is defined based on the state of the determination signal and the state of the first reference signal;
The vehicle state determination system according to any one of claims 1 to 4, wherein the determination condition is defined based on the state of the determination signal.

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