Subway train fault detection system and method, electronic device, and storage medium

Abstract

Disclosed in the present invention are a subway train fault detection system and method, an electronic device, and a storage medium. The subway train fault detection system comprises: a main control circuit, a first gearbox detection module, a second gearbox detection module, a first signal processing module, a second signal processing module and a signal waveform comparison module; the signal waveform comparison module is used for comparing a first signal waveform graph and a second signal waveform graph which are acquired by the first signal processing module and the second signal processing module; an output end of the signal waveform comparison module is connected to the main control circuit, and the main control circuit is used for determining whether a train operates normally; and if the difference between the first signal waveform graph and the second signal waveform graph is within a set threshold range, it is determined that the train operates normally. According to the present invention, whether wheels on two sides of a train are synchronous can be known conveniently, so as to determine whether a fault occurs in the train, thereby improving detection real-time performance, accuracy and convenience.

Description

Subway train fault detection system, method, electronic equipment and storage medium Technical Field

[0001] The present invention belongs to the technical field of fault detection and relates to a fault detection system, and in particular to a subway train fault detection system, method, electronic equipment and storage medium. Background Art

[0002] In recent years, the rapid development of high-speed rail, motor trains, subways, and intercity rail transit has greatly facilitated people's travel. However, with the increasing number of subway passengers, subway operators now have higher requirements for the operation of onboard equipment. If a train malfunctions and cannot be restored in the short term, it will have a serious impact on mainline operations.

[0003] The existing method of train fault detection is usually manual measurement, which requires multiple people to perform the measurement using a ruler. This requires a large number of inspectors, and it is impossible to measure in real time, and there are errors in the measurement.

[0004] In view of this, there is an urgent need to design a new train fault detection method to overcome at least some of the above-mentioned defects of the existing train fault detection method.

[0005] Summary of the Invention

[0006] The present invention provides a subway train fault detection system, method, electronic device and storage medium, which can conveniently determine whether the wheels on both sides of the train are synchronized, thereby determining whether the train has a fault, and can improve the real-time, accuracy and convenience of detection.

[0007] In order to solve the above technical problems, according to one aspect of the present invention, the following technical solution is adopted:

[0008] A subway train fault detection system, comprising: a main control circuit, a first gearbox detection module, a second gearbox detection module, a first signal processing module, a second signal processing module, and a signal waveform comparison module;

[0009] The main control circuit is connected to the first gearbox detection module and the second gearbox detection module respectively to control the operation of the first gearbox detection module and the second gearbox detection module;

[0010] The first gear box detection module is used to detect a first gear rotation signal of a gear box corresponding to a wheel on a first side of the train; the first gear box detection module is connected to the first signal processing module and sends the detected first gear rotation signal to the first signal processing module; the first signal processing module processes the first gear rotation signal to obtain a first signal waveform diagram;

[0011] The second gear box detection module is used to detect a second gear rotation signal of a gear box corresponding to a wheel on the second side of the train; the second gear box detection module is connected to the second signal processing module and sends the detected second gear rotation signal to the second signal processing module; the second signal processing module processes the second gear rotation signal to obtain a second signal waveform diagram;

[0012] The signal waveform comparison module is connected to the first signal processing module and the second signal processing module respectively, and is used to compare the first signal waveform diagram and the second signal waveform diagram obtained by the first signal processing module and the second signal processing module;

[0013] The output end of the signal waveform comparison module is connected to the main control circuit, and the main control circuit is used to determine whether the train operation is normal; if the difference value between the first signal waveform diagram and the second signal waveform diagram is within the set threshold range, it is determined that the train operation is normal.

[0014] As an embodiment of the present invention, the signal waveform comparison module is used to compare at least one of the phase difference, duty cycle, high / low pulse amplitude, and pulse number between the first signal waveform diagram and the second signal waveform diagram; if the difference value is greater than the set threshold, it is judged that the train operation is abnormal.

[0015] As an embodiment of the present invention, the subway train fault detection system further includes a fault category identification module for identifying the fault type according to the comparison result of the signal waveform comparison module.

[0016] As an embodiment of the present invention, the subway train fault detection system further includes a server, and the signal waveform comparison module is provided on the server.

[0017] As an embodiment of the present invention, the subway train fault detection system further includes an alarm module for sending an alarm signal when it is determined that the train is operating abnormally.

[0018] According to another aspect of the present invention, the following technical solution is adopted: a fault detection method of the above-mentioned subway train fault detection system, the fault detection method comprising:

[0019] The first gear box detection module detects a first gear rotation signal of a gear box corresponding to a wheel on a first side of the train, and sends the detected first gear rotation signal to a first signal processing module; the first signal processing module processes the first gear rotation signal to obtain a first signal waveform diagram;

[0020] The second gear box detection module detects a second gear rotation signal of the gear box corresponding to the wheel on the second side of the train, and sends the detected second gear rotation signal to the second signal processing module; the second signal processing module processes the second gear rotation signal to obtain a second signal waveform diagram;

[0021] The signal waveform comparison module compares the first signal waveform diagram and the second signal waveform diagram obtained by the first signal processing module and the second signal processing module;

[0022] The main control circuit determines whether the train operation is normal based on the first signal waveform and the second signal waveform; if the difference value between the first signal waveform and the second signal waveform is within the set threshold range, it is determined that the train operation is normal.

[0023] As an embodiment of the present invention, the signal waveform comparison module is used to compare at least one of the phase difference, duty cycle, high / low pulse amplitude, and pulse number between the first signal waveform diagram and the second signal waveform diagram; if the difference value is greater than the set threshold, it is judged that the train operation is abnormal.

[0024] As an embodiment of the present invention, the subway train fault detection method further includes a fault category identification step, in which the fault type is identified according to the comparison result of the signal waveform comparison module.

[0025] According to another aspect of the present invention, the following technical solution is adopted: an electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the computer program.

[0026] According to another aspect of the present invention, the following technical solution is adopted: a storage medium stores computer program instructions, and the computer program instructions implement the steps of the above method when executed by a processor.

[0027] The beneficial effects of the present invention are as follows: the subway train fault detection system, method, electronic device and storage medium proposed in the present invention can conveniently determine whether the wheels on both sides of the train are synchronized, thereby determining whether the train has a fault, which can improve the real-time, accuracy and convenience of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG1 is a schematic diagram showing the composition of a subway train fault detection system according to an embodiment of the present invention.

[0029] FIG2 is a flow chart of a subway train fault detection method according to an embodiment of the present invention.

[0030] FIG3 is a schematic diagram showing the composition of an electronic device according to an embodiment of the present invention.

[0031] FIG4 is a schematic diagram of the pulse information detection principle in one embodiment of the present invention. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] In order to further understand the present invention, preferred embodiments of the present invention are described below in conjunction with examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0034] The description in this section is only for several typical embodiments, and the present invention is not limited to the scope of the embodiments described. The same or similar existing technical means and some technical features of the embodiments are mutually replaced within the scope of the description and protection of the present invention.

[0035] The term “connection” in the specification includes both direct connection and indirect connection.

[0036] The present invention discloses a subway train fault detection system. FIG1 is a schematic diagram of the composition of a subway train fault detection system according to one embodiment of the present invention. Referring to FIG1 , the subway train fault detection system includes: a main control circuit 1, a first gearbox detection module 2, a second gearbox detection module 3, a first signal processing module 4, a second signal processing module 5, and a signal waveform comparison module 6.

[0037] The main control circuit 1 is connected to the first gearbox detection module 2 and the second gearbox detection module 3, respectively, to control the operation of the first gearbox detection module 2 and the second gearbox detection module 3. The first signal processing module 4, the second signal processing module 5, and the signal waveform comparison module 6 can exist independently or as part of the main control circuit 1.

[0038] The first gear box detection module 2 is used to detect the first gear rotation signal of the gear box corresponding to the wheel on the first side of the train; the first gear box detection module 2 is connected to the first signal processing module 4, and sends the detected first gear rotation signal to the first signal processing module 4; the first signal processing module 4 processes the first gear rotation signal to obtain a first signal waveform diagram.

[0039] The second gear box detection module 3 is used to detect the second gear rotation signal of the gear box corresponding to the wheel on the second side of the train; the second gear box detection module 3 is connected to the second signal processing module 5, and sends the detected second gear rotation signal to the second signal processing module 5; the second signal processing module 5 processes the second gear rotation signal to obtain a second signal waveform diagram.

[0040] The signal waveform comparison module 6 is connected to the first signal processing module 4 and the second signal processing module 5 respectively, and is used to compare the first signal waveform diagram and the second signal waveform diagram obtained by the first signal processing module 4 and the second signal processing module 5.

[0041] The output end of the signal waveform comparison module 6 is connected to the main control circuit 1, and the main control circuit 1 is used to determine whether the train operation is normal; if the difference value between the first signal waveform diagram and the second signal waveform diagram is within the set threshold range, it is determined that the train operation is normal.

[0042] In one embodiment of the present invention, the signal waveform comparison module 6 is used to compare at least one of the phase difference, duty cycle, high / low pulse amplitude, and pulse number between the first signal waveform diagram and the second signal waveform diagram; if the difference value is greater than the set threshold, it is judged that the train operation is abnormal (it may be a listed fault or a track fault).

[0043] The subway train fault detection system may further include a fault type identification module, which is used to identify the fault type according to the comparison result of the signal waveform comparison module.

[0044] The subway train fault detection system may include a server and at least one detection terminal, wherein the server is connected to each detection terminal. The first gearbox detection module 2, the second gearbox detection module 3, the first signal processing module 4, and the second signal processing module 5 may be disposed in the detection terminal; and the signal waveform comparison module 6 may be disposed in the server.

[0045] In addition, the subway train fault detection system may also include an alarm module for issuing an audible and visual alarm signal when a fault is detected.

[0046] The present invention further discloses a fault detection method for the above-mentioned subway train fault detection system. FIG2 is a flow chart of the subway train fault detection method according to one embodiment of the present invention. Referring to FIG2 , the fault detection method includes:

[0047] [Step S1] A first gear box detection module detects a first gear rotation signal of a gear box corresponding to a wheel on a first side of the train, and sends the detected first gear rotation signal to a first signal processing module; the first signal processing module processes the first gear rotation signal to obtain a first signal waveform diagram;

[0048] [Step S2] The second gear box detection module detects a second gear rotation signal from a gear box corresponding to a wheel on the second side of the train, and sends the detected second gear rotation signal to a second signal processing module; the second signal processing module processes the second gear rotation signal to obtain a second signal waveform.

[0049] [Step S3] The signal waveform comparison module compares the first signal waveform graph and the second signal waveform graph obtained by the first signal processing module and the second signal processing module;

[0050] [Step S4] The main control circuit determines whether the train operation is normal based on the first signal waveform and the second signal waveform; if the difference value between the first signal waveform and the second signal waveform is within the set threshold range, it is determined that the train operation is normal.

[0051] In one embodiment of the present invention, the signal waveform comparison module compares at least one of the phase difference, duty cycle, high / low pulse amplitude, and pulse number between the first signal waveform diagram and the second signal waveform diagram; if the difference value is greater than a set threshold, it is determined that the train operation is abnormal.

[0052] In addition, the subway train fault detection method may further include a fault category identification step, in which the fault type is identified according to the comparison result of the signal waveform comparison module.

[0053] In one usage scenario of the present invention, the fault detection system may include a power supply system, a host control board, a TFT display screen, a keyboard, a stepper motor and a motor driver, a memory unit, a connector and a cable assembly thereof.

[0054] This speed test bench features wheels for easy portability. Its housing is constructed of engineering plastic, ensuring safety and reliability. Load-bearing components, such as the gearbox and motor mounting bracket, are constructed of aluminum alloy, reducing the overall weight of the instrument. All drive and control components are integrated into a portable case equipped with wheels and a handle, making it easily portable by one person. It is compact, lightweight, and affordable.

[0055] Taking into account the frequent replacement of sprockets, the speed sprocket box of this design adopts an easily disassembled mechanical structure. The sprocket can be taken out by removing the three screws that fix the speed sprocket. The installation hole position of the speed sensor and the gap between it and the sprocket have been determined by the mechanical structure, that is, you only need to install the sensor on the speed measuring table according to the correct screw hole position, or you can use a standard feeler gauge to check it. At the same time, the speed gap can also be fine-tuned by using the provided adjustment sheets (0.2mm, 0.3mm sheets). Since there are speed sensors with 0-degree and 45-degree installation angles, screw holes with different installation angles are designed on the sensor fixing interface. In addition, since there are two sizes of sprocket outer diameters, in order to ensure the installation gap of the sensor, two speed sensor fixing interfaces are designed for two different sizes of speed sprockets.

[0056] Because the sprocket rotates at high speed during the test, the speed measuring sprocket module is fully enclosed to protect the operator's safety. That is, during the test, the high-speed rotating sprocket is enclosed in a sealed box (see the following introduction for a detailed structural diagram). The sprocket can only be removed by opening the sprocket cover, which is securely fastened with a snap, ensuring safety and reliability. In addition, a sprocket cover door switch detection function is included. If the sprocket cover is not closed or not fully closed, and the micro-touch switch is not closed, the control system detects this signal and controls the motor to prohibit rotation, thus performing the test.

[0057] The device has a sensor voltage analog signal output, which is convenient for direct connection to an oscilloscope for signal detection and observation; a USB communication interface can realize data communication with the host computer software; an SD card is used to store test data and save screenshots; the LCD is used to display test results and display the human-machine operation interface; the keyboard can manually adjust acceleration and deceleration, forward and reverse rotation, screenshots and reset functions; the indicator light displays information related to the instrument operation test; the emergency stop button can immediately stop the motor operation under any circumstances to ensure personal safety.

[0058] The system of the present invention can achieve the following effects:

[0059] (1) Test the phase difference, duty cycle, high / low pulse amplitude, pulse number and other sensor-related technical parameters of the Hall sensor, automatically determine abnormal conditions, and display the test results at the corresponding position on the display;

[0060] (2) Hall effect sensors that can be used to detect current and voltage types;

[0061] (3) It can realize the control of the motor's high and low speed forward and reverse rotation;

[0062] (4) The test bench can be connected to various Hall speed sensors with different interface types through adapters;

[0063] (5) The test data can be saved and its waveform can be replayed. When an abnormal situation occurs, the abnormal waveform can be automatically displayed;

[0064] (6) When the sensor detects an abnormality, an audible and visual alarm can be activated;

[0065] (7) The test bench can be used to replace speed measuring gears of different specifications;

[0066] (8) The equipment is equipped with an emergency stop button. When the motor operates abnormally, pressing the emergency stop button can stop the motor immediately to ensure the personal safety of the operator.

[0067] Figure 4 shows the pulse information detection principle. The system uses two 12-bit, high-precision ADCs within a high-performance microcontroller to acquire signals. Signal tracking and variable frequency sampling are employed for signal acquisition. This means the ADC sampling frequency dynamically changes based on the frequency of the sensor output signal, ensuring that the display always displays a fixed number of complete pulse signals.

[0068] Detailed information about each test is as follows:

[0069] Duty cycle of S1 = (t1 + t2) / (t1 + t2 + t3 + t4) (%);

[0070] Duty cycle of S2 = (t2 + t3) / (t1 + t2 + t3 + t4) (%);

[0071] Phase difference = t1*180 / (t1+t2) (degrees);

[0072] S1 high level voltage = U1;

[0073] S1 low level voltage = U3;

[0074] S2 high level voltage = U2;

[0075] S2 low level voltage = U4.

[0076] The present invention further discloses an electronic device. FIG3 is a schematic diagram illustrating the components of the electronic device according to one embodiment of the present invention. Referring to FIG3 , at the hardware level, the electronic device includes a memory, a processor, and at least one network interface. The processor may be a microprocessor, and the memory may include internal memory, such as random access memory (RAM) or non-volatile memory. Of course, the electronic device may also include other hardware components as needed.

[0077] The processor, network interface, and memory may be interconnected via an internal bus, such as an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industrial Standard Architecture) bus. The bus may include an address bus, a data bus, a control bus, and the like. The memory is used to store programs (which may include operating system programs and application programs). The programs may include program code, which may include computer operating instructions. The memory may include internal memory and non-volatile memory, and provides instructions and data to the processor.

[0078] In one embodiment, the processor may read the corresponding program from the non-volatile memory into the memory and then run it; the processor may execute the program stored in the memory and specifically perform the following operations (as shown in FIG2 ):

[0079] [Step S1] A first gear box detection module detects a first gear rotation signal of a gear box corresponding to a wheel on a first side of the train, and sends the detected first gear rotation signal to a first signal processing module; the first signal processing module processes the first gear rotation signal to obtain a first signal waveform diagram;

[0080] [Step S2] The second gear box detection module detects a second gear rotation signal from a gear box corresponding to a wheel on the second side of the train, and sends the detected second gear rotation signal to a second signal processing module; the second signal processing module processes the second gear rotation signal to obtain a second signal waveform.

[0081] [Step S3] The signal waveform comparison module compares the first signal waveform graph and the second signal waveform graph obtained by the first signal processing module and the second signal processing module;

[0082] [Step S4] The main control circuit determines whether the train operation is normal based on the first signal waveform and the second signal waveform; if the difference value between the first signal waveform and the second signal waveform is within the set threshold range, it is determined that the train operation is normal.

[0083] The present invention further discloses a storage medium having computer program instructions stored thereon, which, when executed by a processor, implement the following steps of the method of the present invention (as shown in FIG2 ):

[0084] [Step S1] A first gear box detection module detects a first gear rotation signal of a gear box corresponding to a wheel on a first side of the train, and sends the detected first gear rotation signal to a first signal processing module; the first signal processing module processes the first gear rotation signal to obtain a first signal waveform diagram;

[0085] [Step S2] The second gear box detection module detects a second gear rotation signal of the gear box corresponding to the wheel on the second side of the train, and sends the detected second gear rotation signal to the second signal processing module; the second signal processing module processes the second gear rotation signal to obtain a second signal waveform;

[0086] [Step S3] The signal waveform comparison module compares the first signal waveform graph and the second signal waveform graph obtained by the first signal processing module and the second signal processing module;

[0087] [Step S4] The main control circuit determines whether the train operation is normal based on the first signal waveform and the second signal waveform; if the difference value between the first signal waveform and the second signal waveform is within the set threshold range, it is determined that the train operation is normal.

[0088] In summary, the subway train fault detection system, method, electronic device and storage medium proposed in the present invention can conveniently determine whether the wheels on both sides of the train are synchronized, thereby determining whether the train is faulty, which can improve the real-time, accuracy and convenience of detection.

[0089] It should be noted that the present application can be implemented in software and / or a combination of software and hardware; for example, it can be implemented using an application-specific integrated circuit (ASIC), a general-purpose computer, or any other similar hardware device. In some embodiments, the software program of the present application can be executed by a processor to implement the above steps or functions. Similarly, the software program of the present application (including related data structures) can be stored in a computer-readable recording medium; for example, a RAM memory, a magnetic or optical drive, or a floppy disk and the like. In addition, some steps or functions of the present application can be implemented in hardware; for example, as a circuit that cooperates with a processor to perform various steps or functions.

[0090] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The description and application of the present invention here are illustrative and are not intended to limit the scope of the present invention to the above-described embodiments. The effects or advantages involved in the embodiments may not be embodied in the embodiments due to interference from various factors, and the description of the effects or advantages is not used to limit the embodiments. Variations and changes to the embodiments disclosed here are possible, and the replacement of the embodiments and various equivalent components are well known to those of ordinary skill in the art. It should be clear to those skilled in the art that the present invention can be implemented in other forms, structures, arrangements, proportions, and with other components, materials, and parts without departing from the spirit or essential characteristics of the present invention. Other variations and changes can be made to the embodiments disclosed here without departing from the scope and spirit of the present invention.

Claims

1. A subway train fault detection system, characterized in that, The subway train fault detection system includes: a main control circuit, a first gearbox detection module, a second gearbox detection module, a first signal processing module, a second signal processing module, and a signal waveform comparison module; The main control circuit is respectively connected to the first gearbox detection module and the second gearbox detection module, and controls the operation of the first gearbox detection module and the second gearbox detection module; The first gearbox detection module is used to detect the first gear rotation signal of the gearbox corresponding to the wheels on the first side of the train; the first gearbox detection module is connected to the first signal processing module and sends the detected first gear rotation signal to the first signal processing module; the first signal processing module processes the first gear rotation signal to obtain a first signal waveform diagram; The second gearbox detection module is used to detect the second gear rotation signal of the gearbox corresponding to the wheels on the second side of the train; the second gearbox detection module is connected to the second signal processing module and sends the detected second gear rotation signal to the second signal processing module; the second signal processing module processes the second gear rotation signal to obtain a second signal waveform diagram; The signal waveform comparison module is respectively connected to the first signal processing module and the second signal processing module, and is used to compare the first signal waveform diagram and the second signal waveform diagram obtained by the first signal processing module and the second signal processing module; The output end of the signal waveform comparison module is connected to the main control circuit, and the main control circuit is used to judge whether the train is running normally; if the difference value between the first signal waveform diagram and the second signal waveform diagram is within the set threshold range, it is judged that the train is running normally.

2. The subway train fault detection system according to claim 1, wherein: The signal waveform comparison module is used to compare at least one of the phase difference, duty cycle, high / low pulse amplitude, and pulse number between the first signal waveform diagram and the second signal waveform diagram; if the difference value is greater than the set threshold, it is judged that the train is running abnormally.

3. The subway train fault detection system according to claim 1, wherein: The subway train fault detection system further includes a fault type identification module, which is used to identify the fault type according to the comparison result of the signal waveform comparison module.

4. The subway train fault detection system according to claim 1, wherein: The subway train fault detection system further includes a server, and the signal waveform comparison module is arranged in the server.

5. The subway train fault detection system according to claim 1, wherein: The subway train fault detection system further includes an alarm module, which is used to send an alarm signal when it is judged that the train is running abnormally.

6. A fault detection method for the subway train fault detection system according to any one of claims 1 to 5, characterized in that, The fault detection method includes: The first gearbox detection module detects the first gear rotation signal of the gearbox corresponding to the wheels on the first side of the train, and sends the detected first gear rotation signal to the first signal processing module; the first signal processing module processes the first gear rotation signal to obtain a first signal waveform diagram; The second gearbox detection module detects the rotation signal of the second gear of the gearbox corresponding to the wheels on the second side of the train, and sends the detected rotation signal of the second gear to the second signal processing module; the second signal processing module processes the rotation signal of the second gear to obtain a second signal waveform diagram. The signal waveform comparison module compares the first signal waveform diagram and the second signal waveform diagram obtained by the first signal processing module and the second signal processing module. The main control circuit determines whether the train is running normally according to the first signal waveform diagram and the second signal waveform diagram; if the difference value between the first signal waveform diagram and the second signal waveform diagram is within the set threshold range, it is determined that the train is running normally.

7. The fault detection method according to claim 6, wherein: The signal waveform comparison module compares at least one of the phase difference, duty cycle, high / low pulse amplitude, and pulse number between the first signal waveform diagram and the second signal waveform diagram; if the difference value is greater than the set threshold, it is determined that the train is running abnormally.

8. The fault detection method according to claim 6, wherein: The subway train fault detection method further includes a fault type identification step of identifying the fault type according to the comparison result of the signal waveform comparison module.

9. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the computer program, the steps of the method according to any one of claims 6 to 8 are implemented.

10. A storage medium having computer program instructions stored thereon, characterized in that, When the computer program instructions are executed by the processor, the steps of the method according to any one of claims 6 to 8 are implemented.

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