Rail vehicle door opening abnormality identification method, device, system and rail vehicle

Abstract

The application provides a rail vehicle door opening abnormality identification method, device, system and rail vehicle, and the method comprises the following steps: acquiring door data; the door data comprises a door opening button signal, train speed, a zero speed signal, a door opening signal, a door opening authorization signal, a door opening enable signal and a door lock state signal; according to the door opening button signal, the train speed, the door opening enable signal, the door opening authorization signal and the door opening signal, a preset door opening condition backstepping algorithm is used to identify the door opening abnormality condition, and a condition identification result is obtained; in the case that the condition identification result meets the preset door opening condition, the number of doors that are not normally opened is counted according to the door lock state signal, and an abnormality statistical result is obtained; and according to the condition identification result, the abnormality statistical result and the zero speed signal, a final door opening abnormality identification result is determined. The application can effectively improve the fault maintenance efficiency and reduce the maintenance cost.

Description

Technical Field

[0001] This invention relates to the field of rail transit technology, and provides a method, device, system, and rail vehicle for identifying abnormal door opening in rail vehicles. Background Technology

[0002] Train doors are crucial for urban rail transit vehicles, constantly opening and closing during daily operation. However, during peak hours, increased human intervention leads to a rise in door malfunctions, potentially causing passenger evacuation incidents and severely impacting traffic flow. According to operator statistics, door control systems have the highest failure rate among all train systems. Therefore, the safety and monitorability of door control systems are critical to ensuring the smooth operation of urban rail transit.

[0003] For on-site door malfunctions, the usual practice is to isolate the faulty door and have technical experts determine the cause of the malfunction using data analysis, professional experience, and troubleshooting methods. This process is often time-consuming, extending the troubleshooting cycle and reducing efficiency. Furthermore, since door malfunction analysis typically begins after the vehicle returns to the garage, it's impossible to pre-locate the cause of the malfunction. This prevents advance planning of repair personnel and necessary spare parts preparation, further reducing the efficiency of troubleshooting. Summary of the Invention

[0004] This invention provides a method, device, system, and rail vehicle for identifying abnormal door openings in rail vehicles, addressing the shortcomings of low efficiency in handling door malfunctions in related technologies. This invention can effectively improve fault repair efficiency and reduce maintenance costs.

[0005] This invention provides a method for identifying abnormal door opening in rail vehicles, comprising: acquiring door data; the door data including door opening button signal, train speed, zero speed signal, door opening signal, door opening authorization signal, door opening activation signal, and door lock status signal; identifying abnormal door opening conditions using a preset door opening condition reverse algorithm based on the door opening button signal, the train speed, the door opening activation signal, the door opening authorization signal, and the door opening signal, to obtain a condition identification result; if the condition identification result meets the preset door opening conditions, counting the number of doors that have not opened normally based on the door lock status signal to obtain an anomaly statistics result; and determining the final abnormal door opening identification result based on the condition identification result, the anomaly statistics result, and the zero speed signal.

[0006] The present invention provides a method for identifying abnormal door opening of a rail vehicle, which further includes: storing and managing the door data, the condition identification result, the abnormality statistics result, and the final door opening abnormality identification result.

[0007] According to a method for identifying abnormal door opening in a rail vehicle provided by the present invention, the abnormal door opening conditions are identified using a preset door opening condition reverse algorithm based on the door opening button signal, the train speed, the door opening activation signal, the door opening authorization signal, and the door opening signal to obtain a condition identification result. This includes: when the basic conditions are met and the door opening activation signal is invalid, performing door opening authorization identification based on the door opening authorization signal; the basic conditions are that the door opening button signal is valid and the train speed is zero; when the door opening authorization signal is valid, the condition identification result is that the door opening activation relay is abnormal or the relay's connection wire is abnormal; when the door opening authorization signal is invalid, performing door opening identification based on the door opening signal to obtain the condition identification result.

[0008] According to a method for identifying abnormal door opening of a rail vehicle provided by the present invention, the door opening button signal includes a first button signal and a second button signal; when both the first button signal and the second button signal are valid, the door opening button signal is valid.

[0009] According to a method for identifying abnormal door opening of a rail vehicle provided by the present invention, the door opening signal includes a first opening signal and a second opening signal; when both the first opening signal and the second opening signal are valid, the door opening authorization signal is valid; when the door opening authorization signal is invalid, the method for identifying door opening based on the door opening signal to obtain the conditional identification result includes: when the door opening authorization signal is invalid, identifying door opening based on the first opening signal; when the first opening signal is valid, the conditional identification result is that the second opening signal transmission is abnormal; when the first opening signal is invalid, the conditional identification result is that the first opening signal transmission is abnormal.

[0010] According to the present invention, a method for identifying abnormal door opening of a rail vehicle is provided, wherein the preset door opening condition is that the basic condition is met and the door opening activation signal, the door opening authorization signal, and the door opening signal are all valid.

[0011] According to a method for identifying abnormal door opening in a rail vehicle provided by the present invention, determining the final abnormal door opening identification result based on the condition identification result, the anomaly statistics result, and the zero-speed signal includes: when the condition identification result is that a preset door opening condition is met and the anomaly statistics result is that the number of doors that have not opened normally is greater than zero, performing zero-speed identification based on the zero-speed signal; when the zero-speed signal is valid, the final abnormal door opening identification result is that the connection line transmitting the door opening activation signal is abnormal; when the zero-speed signal is invalid, the final abnormal door opening identification result is that the zero-speed signal relay is abnormal or the signal line transmitting the zero-speed signal is abnormal.

[0012] This invention also provides a rail vehicle door opening anomaly identification device, comprising: a data acquisition module for acquiring door data; the door data including a door opening button signal, train speed, zero speed signal, door opening signal, door opening authorization signal, door opening activation signal, and door lock status signal; a condition identification module for identifying door opening anomaly conditions using a preset door opening condition backward deduction algorithm based on the door opening button signal, the train speed, the door opening activation signal, the door opening authorization signal, and the door opening signal, to obtain a condition identification result; an anomaly statistics module for counting the number of doors that have not opened normally based on the door lock status signal when the condition identification result meets the preset door opening conditions, to obtain an anomaly statistics result; and a result determination module for determining the final door opening anomaly identification result based on the condition identification result, the anomaly statistics result, and the zero speed signal.

[0013] The present invention also provides a vehicle door control system, including the above-mentioned rail vehicle door opening abnormality identification device.

[0014] The present invention also provides a rail vehicle, including the above-mentioned rail vehicle door opening abnormality identification device or the above-mentioned door control system.

[0015] This invention provides a method, device, system, and rail vehicle for identifying abnormal door opening in rail vehicles. The method includes: acquiring door data; the door data includes door opening button signals, train speed, zero-speed signals, door opening signals, door opening authorization signals, door opening activation signals, and door lock status signals; identifying abnormal door opening conditions using a preset door opening condition reverse algorithm based on the door opening button signals, train speed, door opening activation signals, door opening authorization signals, and door opening signals, obtaining condition identification results; if the condition identification results meet the preset door opening conditions, counting the number of doors that have not opened normally based on the door lock status signals, obtaining anomaly statistics results; and determining the final abnormal door opening identification result based on the condition identification results, anomaly statistics results, and zero-speed signals. This invention can effectively improve fault repair efficiency and reduce maintenance costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a flowchart illustrating the abnormal door opening identification method for rail vehicles provided by the present invention.

[0018] Figure 2 This is a schematic diagram illustrating the specific process of the abnormal door opening identification method for rail vehicles provided by the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the rail vehicle door opening anomaly identification device provided by the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the electronic device provided by the present invention. Detailed Implementation

[0021] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0022] Please refer to Figure 1 , Figure 1 This is a flowchart illustrating the abnormal door opening identification method for rail vehicles provided by the present invention.

[0023] This invention provides a method for identifying abnormal door opening in rail vehicles, comprising:

[0024] 101: Acquire door data; door data includes door opening button signal, train speed, zero speed signal, door opening signal, door opening authorization signal, door opening activation signal, and door lock status signal;

[0025] 102: Based on the door opening button signal, train speed, door opening activation signal, door opening authorization signal, and door opening signal, a preset door opening condition reverse algorithm is used to identify abnormal door opening conditions and obtain the condition identification results.

[0026] 103: If the condition recognition result is that the preset door opening conditions are met, the number of doors that have not been opened normally is counted according to the door lock status signal to obtain the abnormal statistics result;

[0027] 104: Based on the condition recognition results, anomaly statistics results, and zero-speed signal, determine the final door opening anomaly recognition result.

[0028] In this embodiment, the data acquisition module is responsible for communication with the vehicle network and for acquiring door-related data from the network. This door data specifically includes door opening button signals, train speed, zero-speed signals, door opening signals, door opening authorization signals, door opening activation signals, and door lock status signals. After the driver presses the door opening button, the condition recognition module compiles information on cases where doors do not operate. Combining the necessary conditions for all train doors to open, such as the door opening button action, door opening authorization, and vehicle zero speed, a preset door opening condition reverse algorithm is used to construct an abnormal door opening condition recognition logic. This logic directly analyzes and locates the causes of the abnormalities, yielding the condition recognition results. Even when the condition recognition results indicate that the preset door opening conditions are met, some doors may not operate due to their own inherent characteristics. The anomaly statistics module analyzes the door status based on the door lock status signals, statistically analyzing the number of inactive doors (those not normally opened) and their corresponding door numbers, yielding anomaly statistics. Finally, the result determination module combines the condition recognition results, anomaly statistics, and zero-speed signals to determine the final abnormal door opening recognition result.

[0029] It should be noted that:

[0030] The door opening button signal is a signal indicating whether the driver in the driver's cab has operated the door opening button. For example, it includes the 01A side door opening button 1 signal, the 01A side door opening button 2 signal, the 01B side door opening button 1 signal, the 01B side door opening button 2 signal, the 08A side door opening button 1 signal, the 08A side door opening button 2 signal, the 08B side door opening button 1 signal, and the 08B side door opening button 2 signal.

[0031] The zero-speed signal is a vehicle stop signal, given when the vehicle speed is below a certain speed.

[0032] The door opening signal is a signal indicating whether the door is open. For example, it includes the 01A side door opening 1 signal, the 01A side door opening 2 signal, the 01B side door opening 1 signal, the 01B side door opening 2 signal, the 08A side door opening 1 signal, the 08A side door opening 2 signal, the 08B side door opening 1 signal, and the 08B side door opening 2 signal.

[0033] The zero-speed signal and the door opening signal are transmitted to the door controller for door opening drive control.

[0034] The door opening authorization signal is a signal that indicates whether the opening of the door has been authorized.

[0035] The door opening activation signal is a signal that indicates whether the door opening activates the relay. For example, it includes the 01A side door opening activation signal, the 01B side door opening activation signal, the 08A side door opening activation signal, and the 08B side door opening activation signal.

[0036] The door lock status signal is a signal that indicates whether the door is locked.

[0037] Of course, the door data may also include the column number, car number, door number, and time, but this invention does not impose any particular limitation on it.

[0038] This invention requires no additional equipment; it is implemented based on existing data collected by the vehicle door controller. The invention is low-cost and easily applied in engineering. By identifying abnormal door opening conditions, it directly locates the abnormal conditions causing the opening anomalies, improving the efficiency of fault analysis. It can directly statistically analyze doors that fail to open normally, replacing the existing method of manually locating and statistically analyzing faulty doors through a MON screen, reducing the workload of maintenance personnel and improving maintenance efficiency.

[0039] As a preferred embodiment, it further includes: storing and managing the door data, condition recognition results, anomaly statistics results, and the final door opening anomaly recognition results.

[0040] In this embodiment, the data management module stores and manages door data, condition recognition results, anomaly statistics, and the final door opening anomaly recognition results. This not only helps in real-time monitoring of door status but also facilitates subsequent data analysis and fault diagnosis. Simultaneously, if an abnormal door opening situation occurs, the identified anomaly conditions or the statistically analyzed abnormal door results are pushed to the vehicle network.

[0041] Please refer to Figure 2 , Figure 2 This is a schematic diagram illustrating the specific process of the rail vehicle door opening anomaly identification method provided by the present invention.

[0042] In a preferred embodiment, based on the door opening button signal, train speed, door opening activation signal, door opening authorization signal, and door opening signal, a preset door opening condition reverse algorithm is used to identify abnormal door opening conditions and obtain condition identification results. These include: when the basic conditions are met and the door opening activation signal is invalid, door opening authorization is identified based on the door opening authorization signal; the basic conditions are a valid door opening button signal and a zero train speed; when the door opening authorization signal is valid, the condition identification result is an abnormal door opening activation relay or a faulty relay connection; when the door opening authorization signal is invalid, door opening is identified based on the door opening signal, thus obtaining the condition identification result.

[0043] In this embodiment, after receiving the door data, it is first determined whether the basic conditions for opening the door are met. The basic conditions are that the door opening button signal is valid and the train speed is zero.

[0044] In the door opening button signal judgment step, if the door opening button is pressed, the door opening button signal is valid, and the train speed judgment step is executed; if the door opening button is not pressed, the door opening button signal is invalid, and the door data receiving step is executed.

[0045] In the train speed determination step, if the train speed is 0 km / h, the basic conditions for opening the door are met, and the door opening activation signal determination step is executed; if the train speed is not 0 km / h, the basic conditions for opening the door are not met, and the door data receiving step is executed.

[0046] In the door opening activation signal determination step, if the door opening activation relay is activated, the door opening activation signal is valid, and the abnormal statistics step is executed; if the door opening activation relay is not activated, the door opening activation signal is invalid, and the door opening authorization signal determination step is executed.

[0047] In the door opening authorization signal judgment step, if the door opening authorization signal is valid, the condition recognition result is that the door opening activation relay is abnormal or the relay connection is abnormal; if the door opening authorization signal is invalid, the door opening signal judgment step is executed, and the door opening is recognized according to the door opening signal to obtain the condition recognition result.

[0048] In a preferred embodiment, the door opening button signal includes a first button signal and a second button signal; the door opening button signal is valid when both the first button signal and the second button signal are valid.

[0049] In this embodiment, the received signals of side door opening button 1 (first button signal), side door opening button 2 (second button signal), side door opening button 1, side door opening button 2, side door opening button 1, side door opening button 2, side door opening button 1, side door opening button 2, and side door opening button 1, side door opening button 2 are ANDed to obtain the status signal of whether the side door opening button 01A, side door opening button 01B, side door opening button 08A, and side door opening button 2 are activated; if both the first button signal and the second button signal are valid, the door opening button signal is valid.

[0050] In a preferred embodiment, the door opening signal includes a first opening signal and a second opening signal; when both the first and second opening signals are valid, the door opening authorization signal is valid; when the door opening authorization signal is invalid, door opening identification is performed based on the door opening signal to obtain a conditional identification result, including: when the door opening authorization signal is invalid, door opening identification is performed based on the first opening signal; when the first opening signal is valid, the conditional identification result is that the second opening signal transmission is abnormal; when the first opening signal is invalid, the conditional identification result is that the first opening signal transmission is abnormal.

[0051] In this embodiment, the four sets of door opening authorization signals are obtained by ANDing the 01A side door opening 1 signal (first opening signal) and the 01A side door opening 2 signal (second opening signal), the 01B side door opening 1 signal and the 01B side door opening 2 signal, the 08A side door opening 1 signal and the 08A side door opening 2 signal, and the 08B side door opening 1 signal and the 08B side door opening 2 signal; the door opening authorization signal is valid when both the first opening signal and the second opening signal are valid.

[0052] If the door opening authorization signal is invalid, the door opening signal judgment step is executed. If the first opening signal is valid, the second opening signal is invalid, and the condition recognition result is that the second opening signal transmission is abnormal; if the first opening signal is invalid, the condition recognition result is that the first opening signal transmission is abnormal.

[0053] As a preferred embodiment, the preset door opening condition is that the basic conditions are met and the door opening activation signal, door opening authorization signal, and door opening signal are all valid.

[0054] Considering that even if the basic conditions for opening a train door are met and the door opening activation signal, door opening authorization signal, and door opening signal are all valid, the number of doors that have not opened normally may still fail to open due to their own reasons. In this embodiment, the number of doors that have not opened normally is counted based on the door lock status signal. Specifically, the number of doors with invalid door lock status signals (but already opened) is counted. If the number of opened doors is the total number of doors (e.g., the total number of doors on one side of the vehicle is 40), then the door data receiving step is executed. If the number of opened doors is neither zero nor the total number of doors, then a summary table of car number and door number corresponding to valid door lock status signals (but not opened normally) is pushed to the train network. If the number of opened doors is zero, it means that all doors have not opened normally, and the zero-speed signal judgment step is executed.

[0055] Of course, in order to ensure that the door control system has enough time to process requests and return statuses, appropriate system response and buffer times can be set, such as a 6-second delay. By taking into account signal transmission delays and the differences in the actions of each door, a certain delay time is given to avoid misjudgments. The signal delay data of specific projects can be statistically analyzed and updated. This invention does not impose any special limitations on this.

[0056] In a preferred embodiment, the final door opening anomaly identification result is determined based on the condition identification result, the anomaly statistics result, and the zero-speed signal. This includes: if the condition identification result is that the preset door opening conditions are met and the anomaly statistics result is that the number of doors that have not opened normally is greater than zero, zero-speed identification is performed based on the zero-speed signal; if the zero-speed signal is valid, the final door opening anomaly identification result is that the connection line transmitting the door opening activation signal is abnormal; if the zero-speed signal is invalid, the final door opening anomaly identification result is that the zero-speed signal relay is abnormal or the signal line transmitting the zero-speed signal is abnormal.

[0057] Considering that even when the basic conditions for opening the train doors are met and the door opening activation signal, door opening authorization signal, and door opening signal are all valid, but all doors still fail to open normally, this embodiment uses the zero-speed signal for zero-speed identification. If the zero-speed signal is valid, the final door opening anomaly identification result is that the connection line transmitting the door opening activation signal is faulty; if the zero-speed signal is invalid, the final door opening anomaly identification result is that the zero-speed signal relay is faulty or the signal line transmitting the zero-speed signal is faulty.

[0058] The present invention provides a description of the rail vehicle door opening anomaly identification device. The rail vehicle door opening anomaly identification device described below can be referred to in correspondence with the rail vehicle door opening anomaly identification method described above.

[0059] Please refer to Figure 3 , Figure 3This is a schematic diagram of the structure of the rail vehicle door opening anomaly identification device provided by the present invention.

[0060] The present invention also provides a rail vehicle door opening anomaly identification device, comprising: a data acquisition module 301, used to acquire door data; the door data includes door opening button signal, train speed, zero speed signal, door opening signal, door opening authorization signal, door opening activation signal, and door lock status signal; a condition identification module 302, used to identify door opening anomaly conditions based on the door opening button signal, train speed, door opening activation signal, door opening authorization signal, and door opening signal using a preset door opening condition backward deduction algorithm, and obtain condition identification results; an anomaly statistics module 303, used to count the number of doors that have not opened normally based on the door lock status signal when the condition identification results meet the preset door opening conditions, and obtain anomaly statistics results; and a result determination module 304, used to determine the final door opening anomaly identification result based on the condition identification result, the anomaly statistics result, and the zero speed signal.

[0061] As a preferred embodiment, it also includes a data management module for storing and managing door data, condition recognition results, anomaly statistics results, and the final door opening anomaly recognition results.

[0062] The door control system provided by the present invention is described below. The door control system described below can be referred to in correspondence with the rail vehicle door opening anomaly identification method described above.

[0063] The present invention also provides a vehicle door control system, including the above-mentioned rail vehicle door opening abnormality identification device.

[0064] The rail vehicle provided by the present invention is described below. The rail vehicle described below and the rail vehicle door opening anomaly identification method described above can be referred to each other.

[0065] The present invention also provides a rail vehicle, including the above-mentioned rail vehicle door opening abnormality identification device or the above-mentioned door control system.

[0066] Figure 4 A schematic diagram of the electronic device is shown, such as... Figure 4As shown, the electronic device may include: a processor 410, a communication interface 420, a memory 430, and a communication bus 440, wherein the processor 410, the communication interface 420, and the memory 430 communicate with each other through the communication bus 440. The processor 410 can call logic instructions in the memory 430 to execute a method for identifying abnormal door opening of rail vehicles, including: acquiring door data; the door data includes door opening button signal, train speed, zero speed signal, door opening signal, door opening authorization signal, door opening activation signal, and door lock status signal; based on the door opening button signal, train speed, door opening activation signal, door opening authorization signal, and door opening signal, using a preset door opening condition reverse algorithm to identify abnormal door opening conditions and obtain condition identification results; if the condition identification results meet the preset door opening conditions, counting the number of doors that have not opened normally based on the door lock status signal to obtain anomaly statistics results; and determining the final abnormal door opening identification result based on the condition identification results, anomaly statistics results, and zero speed signal.

[0067] Furthermore, the logical instructions in the aforementioned memory 430 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to related technologies, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0068] This invention discloses a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by the computer, the computer can execute the rail vehicle door opening anomaly identification method provided in the above-described method embodiments, including: acquiring door data; the door data includes a door opening button signal, train speed, zero speed signal, door opening signal, door opening authorization signal, door opening activation signal, and door lock status signal; identifying door opening anomaly conditions using a preset door opening condition reverse algorithm based on the door opening button signal, train speed, door opening activation signal, door opening authorization signal, and door opening signal, and obtaining a condition identification result; if the condition identification result meets the preset door opening conditions, counting the number of doors that have not opened normally based on the door lock status signal, and obtaining an anomaly statistics result; and determining the final door opening anomaly identification result based on the condition identification result, the anomaly statistics result, and the zero speed signal.

[0069] On the other hand, embodiments of the present invention also provide a non-transitory computer-readable storage medium storing a computer program thereon. When executed by a processor, the computer program implements the rail vehicle door opening anomaly identification method provided in the above embodiments, including: acquiring door data; the door data includes a door opening button signal, train speed, zero speed signal, door opening signal, door opening authorization signal, door opening activation signal, and door lock status signal; identifying door opening anomaly conditions using a preset door opening condition backward deduction algorithm based on the door opening button signal, train speed, door opening activation signal, door opening authorization signal, and door opening signal, and obtaining a condition identification result; if the condition identification result meets the preset door opening conditions, counting the number of doors that have not opened normally based on the door lock status signal, and obtaining an anomaly statistics result; and determining the final door opening anomaly identification result based on the condition identification result, the anomaly statistics result, and the zero speed signal.

[0070] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0071] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the parts that contribute to the related technology, can be embodied in the form of software products. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for identifying abnormal door opening in rail vehicles, characterized in that, include: Acquire door data; the door data includes door opening button signal, train speed, zero speed signal, door opening signal, door opening authorization signal, door opening activation signal, and door lock status signal; Based on the door opening button signal, the train speed, the door opening activation signal, the door opening authorization signal, and the door opening signal, a preset door opening condition reverse algorithm is used to identify abnormal door opening conditions and obtain the condition identification result. If the condition recognition result is that the preset door opening condition is met, the number of doors that have not been opened normally is counted according to the door lock status signal to obtain the abnormal statistics result; Based on the condition recognition results, the anomaly statistics results, and the zero-speed signal, the final door opening anomaly recognition result is determined.

2. The method for identifying abnormal door opening in rail vehicles according to claim 1, characterized in that, Also includes: The door data, the condition recognition results, the anomaly statistics results, and the final door opening anomaly recognition results are stored and managed.

3. The method for identifying abnormal door opening in rail vehicles according to claim 1, characterized in that, The step involves identifying abnormal door opening conditions using a preset door opening condition reverse algorithm based on the door opening button signal, the train speed, the door opening activation signal, the door opening authorization signal, and the door opening signal, to obtain condition identification results, including: If the basic conditions are met and the door opening activation signal is invalid, the door opening authorization is identified based on the door opening authorization signal; the basic conditions are that the door opening button signal is valid and the train speed is zero. If the door opening authorization signal is valid, the condition recognition result is that the door opening activation relay is abnormal or the relay connection is abnormal. If the door opening authorization signal is invalid, door opening recognition is performed based on the door opening signal to obtain the condition recognition result.

4. The method for identifying abnormal door opening in rail vehicles according to claim 3, characterized in that, The door opening button signal includes a first button signal and a second button signal; The door opening button signal is valid when both the first button signal and the second button signal are valid.

5. The method for identifying abnormal door opening in rail vehicles according to claim 3, characterized in that, The door opening signal includes a first opening signal and a second opening signal; when both the first opening signal and the second opening signal are valid, the door opening authorization signal is valid. When the door opening authorization signal is invalid, the door opening recognition is performed based on the door opening signal to obtain the condition recognition result, including: If the door opening authorization signal is invalid, the door opening recognition is performed based on the first opening signal; If the first activation signal is valid, the condition identification result is that the second activation signal transmission is abnormal; If the first activation signal is invalid, the condition identification result is that the first activation signal transmission is abnormal.

6. The method for identifying abnormal door opening in rail vehicles according to claim 3, characterized in that, The preset door opening condition is that the basic conditions are met and the door opening activation signal, the door opening authorization signal, and the door opening signal are all valid.

7. The method for identifying abnormal door opening in rail vehicles according to any one of claims 1 to 6, characterized in that, The step of determining the final door opening anomaly identification result based on the condition identification result, the anomaly statistics result, and the zero-speed signal includes: When the condition recognition result is that the preset door opening condition is met and the abnormal statistics result is that the number of doors that have not been opened normally is greater than zero, zero-speed recognition is performed based on the zero-speed signal. If the zero-speed signal is valid, the final door opening anomaly identification result is that the connection line transmitting the door opening activation signal is faulty. If the zero-speed signal is invalid, the final door opening anomaly identification result is either a faulty zero-speed signal relay or a faulty signal line transmitting the zero-speed signal.

8. A device for identifying abnormal door opening in rail vehicles, characterized in that, include: The data acquisition module is used to acquire door data; the door data includes door opening button signal, train speed, zero speed signal, door opening signal, door opening authorization signal, door opening activation signal, and door lock status signal. The condition recognition module is used to identify abnormal door opening conditions based on the door opening button signal, the train speed, the door opening activation signal, the door opening authorization signal, and the door opening signal, using a preset door opening condition reverse reasoning algorithm to obtain the condition recognition result. The anomaly statistics module is used to count the number of doors that have not been opened normally based on the door lock status signal when the condition recognition result is that the preset door opening conditions are met, and to obtain the anomaly statistics result. The result determination module is used to determine the final door opening anomaly identification result based on the condition identification result, the anomaly statistics result, and the zero-speed signal.

9. A vehicle door control system, characterized in that, Includes the rail vehicle door opening anomaly identification device as described in claim 8.

10. A rail vehicle, characterized in that, It includes the rail vehicle door opening abnormality identification device as described in claim 8 or the vehicle door control system as described in claim 9.

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