An active diagnosis method for tamping vehicles

Abstract

The present application discloses a method for active diagnosis of a tamping vehicle, including a diagnostic process for the insertion of a tamping head, which process includes the following steps: the vehicle-mounted network control system obtains the diagnostic related data of a single tamping head including the tamping feedback current, target depth, and actual depth each time the tamping head is inserted, and sends it to the main control module. When the interpolation value of the target depth and the actual depth of the tamping head insertion is greater than the set threshold value for several consecutive times within the set time range of the tamping head insertion, the main control module determines that the tamping head insertion is abnormal. If the parameters set by the vehicle-mounted network control system are outside the parameter threshold, the main control module determines that the parameter setting is abnormal, provides solutions and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system. The present application can solve the technical problems of the existing diagnostic methods with complex control logic, the operator's inability to quickly locate and process problems, and the lack of analysis methods for complex non-logical faults.

Description

Technical Field

[0001] The present application relates to the technical field of railway engineering machinery, and in particular to an active diagnosis method for a tamping vehicle. Background Art

[0002] As my country's total railway mileage continues to grow, the workload for railway maintenance is increasing. Tamping vehicles are essential operating vehicles for railway maintenance work. They perform leveling, track lifting, and tamping operations on the track, increasing the density of the ballast in the roadbed, eliminating deviations in parameters such as direction, horizontality, and longitudinal equality, improving line stability, and ensuring safe and high-speed operation of trains. Tamping vehicles must operate within a blocked section, which generally lasts for three hours. The workload is heavy, the time saturation is high, and the tamping environment is harsh. The vehicle system, especially the electrical system, has a high failure rate. If a failure occurs and cannot be promptly identified and resolved, it will affect the tamping vehicle's workload and, in serious cases, even affect the opening of the line.

[0003] In the prior art, the following documents are mainly related to this application:

[0004] Prior Art 1 is a Chinese invention application filed by Zhuzhou Times Electronic Technology Co., Ltd. on July 13, 2017, and published on September 12, 2017, with publication number CN 107153394A. This application discloses a tamping vehicle operation protection control system, comprising a lower-level mainboard and a programmable mainboard. The lower-level mainboard collects analog quantities from track lifting and track shifting operations and converts the analog quantities into digital quantities. The lower-level mainboard calculates the total track lifting amount based on the digital quantities from track lifting operations and the total track shifting amount based on the digital quantities from track shifting operations. Based on the total track lifting and total track shifting amounts, the lower-level mainboard determines whether the operation lockout conditions are met and transmits the judgment result to the programmable mainboard. When the programmable mainboard receives the operation lockout signal, it eliminates the programmable logic signal for the corresponding operation and cuts off the electrical signal to the corresponding operation control valve. This invention solves the technical problem that existing tamping vehicles cannot self-protect during operation. In the event of an emergency, the operating mechanism will not stop, causing serious accidents such as over-lifting and over-switching, even damaging the line and breaking the rails.

[0005] However, existing technologies suffer from technical drawbacks such as complex tamping vehicle control logic, which prevents operators from quickly locating and resolving problems. There is also a lack of analytical tools for complex, non-logical faults, requiring long-term deployment of specialized personnel, resulting in long lead times and low efficiency. Furthermore, tamping vehicles also have a high electrical system failure rate during operation, resulting in short operating lockout periods. Failure to promptly address faults can impact line operation. Summary of the Invention

[0006] In view of this, the purpose of this application is to provide an active diagnosis method for tamping vehicles to solve the technical problems of existing diagnostic methods, such as complex control logic, inability of operators to quickly locate and handle problems, and lack of analysis methods for complex non-logical faults.

[0007] In order to achieve the above-mentioned invention object, the present application specifically provides a technical implementation scheme of a tamping vehicle active diagnosis method, wherein the method includes a tamping head insertion diagnosis process S1), which includes the following steps:

[0008] S11) The on-board network control system obtains diagnostic data related to a single tamping head, including tamping feedback current, target depth, and actual depth, and transmits the data to the main control module each time the tamping head is inserted. If, within a set time range for the tamping head insertion, the interpolated value of the target depth and the actual depth of the tamping head insertion exceeds a set threshold for several consecutive times, the main control module determines that the tamping head insertion is abnormal.

[0009] S12) If the parameters set by the vehicle network control system are outside the parameter threshold, the main control module determines that the parameter setting is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0010] S13) If there is no tamping feedback current from the tamping down-insertion proportional valve, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0011] S14) If there is still tamping feedback current when the tamping head is inserted to the deepest position, the main control module determines that it is a circuit slugging problem, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0012] S15) If the error between the tamping feedback current and the actual output current is greater than the set value, it is determined that the valve output is abnormal, and a solution and treatment measures are given according to the fault tree and the treatment results are fed back to the intelligent diagnostic display and / or remote diagnostic system;

[0013] S16) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0014] Furthermore, the method further includes a tamping head synchronous diagnosis process S2), which includes the following steps:

[0015] S21) The on-board network control system obtains diagnostic data related to the left and right inner and outer tamping heads, including tamping feedback current, target depth, and actual depth, each time the tamping head is inserted, and sends the data to the main control module; if the difference in the actual depth of the left and right inner and outer tamping heads is greater than a set threshold for several consecutive insertions within the set time range of the tamping head insertion, the main control module determines that the tamping head insertion is abnormal;

[0016] S22) If the parameter set by the vehicle network control system is outside the parameter threshold, the main control module determines that the parameter setting is abnormal, provides a solution and treatment measures according to the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0017] S23) If there is no tamping feedback current from the tamping down-insertion proportional valve, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0018] S24) If there is still tamping feedback current when the tamping head is inserted to the deepest position, the main control module determines that it is a circuit stagnation problem, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0019] S25) If the error between the tamping feedback current and the actual output current is greater than the set value, it is determined that the valve output is abnormal, and a solution and treatment measures are given according to the fault tree and the treatment results are fed back to the intelligent diagnostic display and / or remote diagnostic system;

[0020] S26) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0021] Furthermore, the method further includes a tamping head centering diagnosis process S3), which includes the following steps:

[0022] S31) The on-board network control system obtains alignment diagnosis-related data including lateral feedback current, target position, and actual position each time the tamping head is inserted, and sends the data to the main control module; when the difference between the lateral target position and the actual position of the tamping centering is greater than a set threshold for several consecutive times within the set time range of the tamping head insertion, the main control module determines that the tamping centering is abnormal;

[0023] S32) If the parameter set by the vehicle network control system is outside the parameter threshold, the main control module determines that the parameter setting is abnormal, provides a solution and treatment measures according to the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0024] S33) If there is no lateral feedback current, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0025] S34) If the error between the tamping feedback current and the actual output current is greater than a set threshold, the main control module determines that the valve output is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0026] S35) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures according to the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0027] Furthermore, the method further includes a measurement trolley motion diagnosis process S4), which includes the following steps:

[0028] S41) The vehicle network control system performs logical judgment at set intervals to obtain the electronic pendulum and the computer theoretical super-high value. When the absolute value of the difference between the electronic pendulum and the computer theoretical super-high value is greater than a set first threshold, and the accumulated abnormal data is greater than a set second threshold, the main control module determines that the measuring vehicle is abnormal;

[0029] S42) If there are no left or right loading switch signals, it is determined that the measuring trolley is not loading, and a solution and treatment measures are provided according to the fault tree and the treatment results are fed back to the intelligent diagnostic display and / or remote diagnostic system;

[0030] S43) If the left and right loading valves have no output, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0031] S44) If there is no current output feedback from the left and right loading valves, the main control module determines that the valve output is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0032] S45) If no abnormality is determined as described above, the main control module determines that the measuring trolley has derailed or the mechanical system has failed, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0033] Furthermore, the method further includes an over-diagnosis process S5), which includes the following steps:

[0034] S51) The on-board network control system obtains track shifting diagnosis-related data including track shifting target current, track shifting feedback current, and track shifting amount after the tamping head is inserted; if the change in track shifting amount after the tamping head determines that the track shifting current is 0 at a set time interval for several consecutive times is greater than 0, the main control module determines that there is an over-track shifting abnormality;

[0035] S52) If the shift target current is greater than the first current threshold, but the shift feedback current is less than the second current threshold, the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0036] S53) If the shift target current is less than the second current threshold, but the shift feedback current is greater than the third current threshold, the main control module determines that it is an electrical zero offset or a servo valve zero offset, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0037] S54) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures according to the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0038] Furthermore, the method further includes an under-allocated channel diagnosis process S6), which includes the following steps:

[0039] S61) After the tamping head is inserted, the on-board network control system obtains track shifting diagnosis-related data including track shifting target current, track shifting feedback current, and track shifting amount; if the track shifting amount cannot return to 0 after a set period of time for a number of consecutive tamping operations, the main control module determines that there is an under-tracking abnormality;

[0040] S62) If the shift target current is greater than the first current threshold, but the shift feedback current is less than the second current threshold, the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0041] S63) If the shift target current is less than the second current threshold, but the shift feedback current is greater than the third current threshold, the main control module determines that it is an electrical zero offset or a servo valve zero offset, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0042] S64) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0043] Furthermore, the method further includes a diagnostic process S7), which includes the following steps:

[0044] S71) The vehicle-mounted network control system obtains track-lifting diagnosis-related data including track-lifting target current, track-lifting feedback current, and track-lifting amount after the tamping head is inserted; if the track-lifting amount change is greater than 0 after the track-lifting current is determined to be 0 at a set time for several consecutive times, the main control module determines that a track-lifting abnormality has occurred;

[0045] S72) If the starting target current is greater than the first current threshold, but the starting feedback current is less than the second current threshold, the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0046] S73) If the starting target current is less than the second current threshold, but the starting feedback current is greater than the third current threshold, the main control module determines that it is an electrical zero offset or a servo valve zero offset, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0047] S74) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0048] Furthermore, the method further includes a fault diagnosis process S8), which includes the following steps:

[0049] S81) After the tamping head is inserted, the on-board network control system obtains track-lifting diagnosis-related data including track-lifting target current, track-lifting feedback current, and track-lifting amount; if the track-lifting amount cannot return to 0 after a set period of time for a number of consecutive tamping operations, the main control module determines that there is an under-tracking abnormality;

[0050] S82) If the starting target current is greater than the first current threshold, but the starting feedback current is less than the second current threshold, the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides a solution and processing measures according to the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0051] S83) If the starting target current is less than the second current threshold, but the starting feedback current is greater than the third current threshold, the main control module determines that it is an electrical zero offset or a servo valve zero offset, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0052] S84) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures according to the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0053] Furthermore, the method further includes a starting current diagnosis process S9), which includes the following steps:

[0054] S91) After the tamping head is inserted, the vehicle network control system obtains track-starting diagnosis-related data including track-starting target current, track-starting feedback current, and track-starting amount; if a number of consecutive picks determine that the track-starting amount and the track-starting current are not in a linear relationship, the main control module determines that the track-starting current is abnormal;

[0055] S92) If the parameter set by the vehicle network control system is outside the parameter threshold, the main control module determines that the parameter setting is abnormal, provides a solution and treatment measures according to the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0056] S93) If the acquisition module voltage is abnormal, the main control module determines that the analog acquisition module in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0057] S94) If the acquisition channel is not open and the acquisition value does not change, the main control module determines that the acquisition channel is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0058] S95) If there is no abnormality as described above, the main control module determines that the cause is other than the cause, provides solutions and processing measures according to the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system.

[0059] Furthermore, the method further includes a switching current diagnosis process S10), which includes the following steps:

[0060] S101) After the tamping head is inserted, the on-board network control system obtains track shifting diagnosis-related data including the track shifting target current, the track shifting feedback current, and the track shifting amount; if a number of consecutive picks determine that the track shifting amount and the track shifting current are not linearly related, the main control module determines that the track shifting current is abnormal;

[0061] S102) If the parameters set by the vehicle network control system are outside the parameter threshold, the main control module determines that the parameter setting is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0062] S103) If the acquisition module voltage is abnormal, the main control module determines that the analog acquisition module in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0063] S104) If the acquisition channel is not open and the acquisition value does not change, the main control module determines that the acquisition channel is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0064] S105) If there is no abnormality as described above, the main control module determines that the cause is other than the cause, provides solutions and treatment measures according to the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system.

[0065] Furthermore, the method further includes a sensor diagnosis process S11), which includes the following steps:

[0066] S111) The vehicle network control system acquires sensor diagnosis-related data including the leveling sensor and the versine sensor during a collection cycle at a set time interval; if the sensor fluctuation value is determined to be greater than a set threshold for several consecutive cycles, the main control module determines that the sensor is abnormal;

[0067] S112) If the sensor calibration parameters are outside the parameter threshold, the main control module determines that the sensor parameter calibration is abnormal, provides a solution and treatment measures according to the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0068] S113) If the acquisition module voltage is abnormal, the main control module determines that the analog acquisition module in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0069] S114) If the sensor communication cycle is abnormal, the main control module determines that it is a communication abnormality, provides a solution and processing measures according to the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0070] S115) If there is no abnormality as described above, the main control module determines that the fault is in the sensor itself, provides solutions and treatment measures according to the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system.

[0071] By implementing the technical solution of the active diagnosis method for tamping vehicles provided by the present application, the following beneficial effects are achieved:

[0072] (1) The active diagnostic method for tamping vehicles of this application has simple control logic, which enables operators to quickly locate and handle problems. The maintenance cycle is short and efficient, which can improve the efficiency of on-site fault handling and enhance the level and efficiency of on-site and vehicle operation and maintenance management.

[0073] (2) The active diagnostic method for tamping vehicles of the present application uses an active diagnostic fault tree method to give an alarm indication of the fault point of the tamping vehicle, which can quickly locate the fault point and enable the network system to perform a corresponding security blockade, thereby greatly improving the efficiency of tamping vehicle fault detection;

[0074] (3) The active diagnosis method for tamping vehicles in this application has simplified active diagnosis and alarm operation steps, a simpler diagnostic process, a more comprehensive diagnostic scope, a higher degree of intelligence, more standardized diagnostic information, a more intuitive diagnostic interface, and a higher user utilization rate;

[0075] (4) The active diagnosis method for tamping vehicles of the present application simplifies the diagnosis process, realizes a user-friendly and intuitive display interface and easy-to-read and understand fault diagnosis information, and optimizes the serial single-item diagnosis to parallel multiple-item diagnosis. On the basis of passive manual diagnosis, automatic active diagnosis is added, and the multi-level tedious operation is optimized to a single-level simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] To more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other embodiments can be derived from these drawings without inventive effort.

[0077] Figure 1 This is a schematic block diagram of the system structure of a specific embodiment of the active diagnostic device for tamping vehicles based on the method of this application;

[0078] Figure 2 This is a diagnostic data flow diagram of a specific embodiment of the active diagnostic method for tamping vehicles of the present application;

[0079] Figure 3 This is a functional block diagram of the tamping head insertion diagnosis of a specific embodiment of the active diagnostic system for tamping vehicles based on the method of this application;

[0080] Figure 4 This is a functional block diagram of synchronous diagnosis of the tamping head insertion in a specific embodiment of the active diagnosis system for tamping vehicles based on the method of this application;

[0081] Figure 5 This is a functional block diagram of the tamping head centering diagnosis of a specific embodiment of the active diagnostic system for tamping vehicles based on the method of this application;

[0082] Figure 6 This is a block diagram of the diagnostic function of the measuring vehicle of a specific embodiment of the active diagnostic system for tamping vehicles based on the method of this application;

[0083] Figure 7 This is a functional block diagram of lane-crossing diagnosis in a specific embodiment of the active diagnostic system for tamping vehicles on which the method of this application is based;

[0084] Figure 8 This is a functional block diagram of under-track diagnosis in a specific embodiment of the active diagnostic system for tamping vehicles based on the method of this application;

[0085] Figure 9 This is a functional block diagram of the track-crossing diagnosis of a specific embodiment of the active diagnostic system for tamping vehicles based on the method of this application;

[0086] Figure 10 This is a functional block diagram of undertrack diagnosis in a specific embodiment of the active diagnostic system for tamping vehicles on which the method of this application is based;

[0087] Figure 11 This is a functional block diagram of track starting current diagnosis in a specific embodiment of the active diagnostic system for tamping vehicles based on the method of this application;

[0088] Figure 12 This is a functional block diagram of the track shifting current diagnosis of a specific embodiment of the active diagnostic system for tamping vehicles based on the method of this application;

[0089] Figure 13 This is a sensor diagnostic function block diagram of a specific embodiment of the active diagnostic system for tamping vehicles based on the method of this application;

[0090] Figure 14 This is a flowchart of an active diagnosis implementation procedure of a specific embodiment of the active diagnosis system for tamping vehicles based on the method of this application;

[0091] Figure 15This is a flowchart of a tamping head insertion diagnostic procedure according to a specific embodiment of the active diagnostic method for a tamping vehicle of the present application;

[0092] Figure 16 This is a flowchart of a tamping head down-insertion synchronous diagnosis procedure according to a specific embodiment of the active diagnosis method for a tamping vehicle of the present application;

[0093] Figure 17 This is a flowchart of a tamping head centering diagnosis procedure according to a specific embodiment of the active diagnosis method for a tamping vehicle of the present application;

[0094] Figure 18 This is a flow chart of the diagnostic procedure of the measuring trolley in a specific embodiment of the active diagnostic method for a tamping vehicle of the present application;

[0095] Figure 19 This is a flowchart of a track-crossing diagnosis procedure of a specific embodiment of the active diagnosis method for a tamping vehicle of the present application;

[0096] Figure 20 This is a flowchart of a track under-track diagnosis procedure according to a specific embodiment of the active diagnosis method for a tamping vehicle of the present application;

[0097] Figure 21 This is a flowchart of a road overturning diagnosis procedure of a specific embodiment of the active diagnosis method for a tamping vehicle of the present application;

[0098] Figure 22 This is a flowchart of a road underdevelopment diagnosis procedure according to a specific embodiment of the active diagnosis method for a tamping vehicle of the present application;

[0099] Figure 23 This is a flowchart of a track starting current diagnosis procedure of a specific embodiment of the active diagnosis method for a tamping vehicle of the present application;

[0100] Figure 24 This is a flowchart of a track shifting current diagnosis procedure of a specific embodiment of the active diagnosis method for a tamping vehicle of the present application;

[0101] Figure 25 It is a flow chart of the sensor diagnosis procedure of a specific embodiment of the active diagnosis method for tamping vehicles of the present application. DETAILED DESCRIPTION

[0102] For the purpose of reference and clarity, the technical terms, abbreviations or abbreviations used below are recorded as follows:

[0103] CAN: Short for Controller Area Network;

[0104] MCM: short for Main Control Module;

[0105] C / S: Abbreviation for Client / Server, which refers to the client / server architecture model. In this architecture, the server is responsible for managing the database, processing data requests, and providing business logic processing services, while the client is responsible for interacting with the user, sending user requests to the server, and displaying the server's returned results.

[0106] To make the purpose, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0107] As attached Figure 1 To the attached Figure 25 As shown, a specific embodiment of the active diagnosis method for a tamping vehicle of the present application is given, and the present application is further explained below in conjunction with the drawings and specific embodiments.

[0108] The active diagnosis method for tamping vehicles in this application adopts the on-site CAN bus as the digital communication carrier, and connects the entire control system through the network from beginning to end to form a complete control network. The CAN bus control method has the characteristics of networking, digitization, and modularization. Its on-board network control system is not only adapted to the development of advanced network technology, but also has a short product development cycle and high reliability. It can improve the intelligence level of rail engineering machinery and improve the efficiency of on-site fault handling.

[0109] Example 1

[0110] As attached Figure 1 As shown, an embodiment of the active diagnostic device for a tamping vehicle based on the method of the present application specifically includes:

[0111] The main control module (MCM module) runs the on-board intelligent diagnosis and operation and maintenance server software. It is a C / S embedded server program that runs core service functions, collects and records bus data and saves it as files, and implements functions including active diagnosis, logic diagnosis, expert diagnosis, operation data record analysis, and job data record analysis. It is also equipped with an on-board database for managing data operation and maintenance information including basic vehicle information, equipment information, maintenance information, fault records, and operation records.

[0112] The wireless routing module (vehicle-mounted wireless AP) is connected to the main control module and enables network access to vehicle-mounted devices through the vehicle-mounted wireless network;

[0113] An intelligent diagnostic display, connected to the wireless routing module, is used to intelligently diagnose vehicle network control system faults and intelligently monitor the life cycle of each module in the vehicle network control system;

[0114] The on-board mobile communication module is connected to the wireless routing module. When the on-board public network is accessible, the main control module and the intelligent diagnostic display establish a connection with the remote diagnostic system through the wireless routing module to achieve real-time remote monitoring, diagnosis, and data synchronization. The on-board mobile communication module can specifically adopt an on-board 4G / 5G module.

[0115] The active diagnostic method for tamping vehicles also includes an on-board mobile display (specifically, an on-board tablet) connected to a wireless routing module. Client interactive software runs on the on-board mobile display, accessing the main control module via a wireless local area network to achieve human-machine interface access. When the on-board public network lacks access rights, offline data collection and file upload to the remote diagnostic system can be achieved.

[0116] When the diagnostic process begins, the main control module obtains data related to the diagnosis of the vehicle network control system from the Ethernet or bus. After the data verification is passed, it determines the abnormality of the change trend of each data, analyzes the cause of the fault according to the fault tree, and provides fault handling measures. If the cause of the fault cannot be determined, the fault probability is given, the diagnostic results are recorded, and the results are fed back to the intelligent diagnostic display.

[0117] Example 2

[0118] As attached Figure 1 As shown, an embodiment of the active diagnostic system for a tamping vehicle based on the method of the present application specifically includes: an on-board network control system, a remote diagnostic system, and the device as described in Example 1. The on-board network control system is connected to the main control module of the on-board intelligent diagnostic operation and maintenance device, and the main control module and the intelligent diagnostic display establish a wireless connection with the remote diagnostic system through the wireless routing module and the on-board mobile communication module. The active diagnostic system for the tamping vehicle of the present application divides the network control system into 9 categories: high-speed running, hydraulic system, operating running, tamping system, tamping posture, leveling system, lane shifting system, CAN communication diagnosis, and parameter diagnosis. The main control module is used to determine the fault point of the tamping vehicle network control system through logical comparison, analog quantity change trend, threshold judgment, etc., and to issue a fault alarm. At the same time, the fault information is sent to the on-board network control system for safety interlock control. Its main functions are shown in Table 1 below, and the data flow is shown in the attached table. Figure 2 shown.

[0119]

[0120] Table 1 System function list

[0121] The active diagnosis function displays intelligent diagnoses and alarms based on the active diagnostic fault tree and analog value trend. The diagnostic process begins by acquiring diagnostic data from the Ethernet or CAN bus. After data verification, the trend of each data item is determined to be abnormal. The fault cause is analyzed based on the fault tree and troubleshooting measures are provided. If the cause cannot be determined, the fault probability is calculated. The diagnostic results are recorded and provided as feedback.

[0122] Diagnostic fault tree management mainly establishes an on-board fault tree database based on different vehicle models to achieve fault tree management (Table 2 below shows the fault tree management list for a vehicle model). Its main functions are as follows.

[0123] New fault tree: Implement new entry of fault tree.

[0124] Fault tree modification: implement fault tree data modification.

[0125] Fault tree import: Provide Excel spreadsheet template to import fault tree into the database.

[0126] Fault tree export: export the fault tree to Excel format.

[0127]

[0128]

[0129]

[0130]

[0131] Table 2 Diagnostic fault tree list

[0132] Active diagnosis logic is implemented based on the fault items in the fault tree. Active diagnosis uses logical items combined with data trends to determine abnormal conditions.

[0133] As attached Figure 3 As shown, the fault diagnosis for an abnormal tamping head insertion is as follows: The onboard network control system obtains diagnostic data related to the individual tamping head, including tamping feedback current, target depth, and actual depth, and sends it to the main control module each time the tamping head is inserted. If the interpolation between the target and actual depths exceeds a set threshold (e.g., 5 mm) for several consecutive times (e.g., five times) within the set insertion time (e.g., 700 ms), the main control module determines that the tamping head insertion is abnormal.

[0134] If the parameters set by the vehicle network control system are outside the parameter threshold, the main control module will determine that the parameter setting is abnormal, provide solutions and treatment measures based on the fault tree, and feed back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0135] If there is no tamping feedback current from the tamping down proportional valve, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0136] If there is still tamping feedback current when the tamping head is inserted to the deepest position, the main control module will determine that it is a line knot problem, provide solutions and treatment measures based on the fault tree, and feed back the treatment results to the intelligent diagnosis display and / or remote diagnosis system;

[0137] If the error between the tamping feedback current and the actual output current is greater than the set value (e.g. 100mA), it is determined that the valve output is abnormal. A solution and treatment measures are given according to the fault tree and the treatment results are fed back to the intelligent diagnostic display and / or remote diagnostic system.

[0138] If none of the above abnormalities are identified, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0139] As attached Figure 4 As shown, tamping head synchronization abnormality determination: The onboard network control system acquires diagnostic data related to the left and right inner and outer tamping heads, including tamping feedback current, target depth, and actual depth, each time the tamping head is inserted, and sends it to the main control module. If the difference in the actual depth of the left and right inner and outer tamping heads exceeds a set threshold (e.g., 5 mm) for several consecutive times (e.g., 5 times) within the set insertion time range (e.g., 700ms), the main control module determines that the tamping head insertion is abnormal.

[0140] If the parameters set by the vehicle network control system are outside the parameter threshold, the main control module will determine that the parameter setting is abnormal, provide solutions and treatment measures based on the fault tree, and feed back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0141] If there is no tamping feedback current from the tamping down proportional valve, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0142] If there is still tamping feedback current when the tamping head is inserted to the deepest position, the main control module will determine that it is a line knot problem, provide solutions and treatment measures based on the fault tree, and feed back the treatment results to the intelligent diagnosis display and / or remote diagnosis system;

[0143] If the error between the tamping feedback current and the actual output current is greater than the set value (e.g. 100mA), it is determined that the valve output is abnormal. A solution and treatment measures are given according to the fault tree and the treatment results are fed back to the intelligent diagnostic display and / or remote diagnostic system.

[0144] If none of the above abnormalities are identified, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0145] As attached Figure 5 As shown, the tamping head alignment abnormality judgment: the vehicle network control system obtains the alignment diagnosis-related data including the lateral feedback current, target position, and actual position each time the tamping head is inserted and sends it to the main control module. If the difference between the lateral target position and the actual position of the tamping head is greater than the set threshold (such as 5mm) for several consecutive times (such as 5 times) within the set time range of the tamping head insertion (such as 700ms), the main control module determines that the tamping head alignment is abnormal;

[0146] If the parameters set by the vehicle network control system are outside the parameter threshold, the main control module will determine that the parameter setting is abnormal, provide solutions and treatment measures based on the fault tree, and feed back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0147] If there is no lateral feedback current, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0148] If the error between the tamping feedback current and the actual output current is greater than the set threshold (e.g. 100mA), the main control module determines that the valve output is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0149] If none of the above abnormalities are identified, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0150] As attached Figure 6 As shown, the abnormal movement detection of the measuring trolley: the vehicle network control system performs logical judgment at set intervals (such as 5 meters) to obtain the theoretical super-high value of the electronic pendulum and the computer. When the absolute value of the difference between the electronic pendulum and the theoretical super-high value of the computer is greater than the set first threshold (such as 20mm), and the accumulated abnormal data is greater than the set second threshold (such as 3 meters), the main control module determines that the measuring trolley is abnormal;

[0151] If there is no left or right loading switch signal, it is determined that the measuring trolley has no loading action, and a solution and treatment measures are given according to the fault tree, and the treatment results are fed back to the intelligent diagnosis display and / or remote diagnosis system;

[0152] If the left and right loading valves have no output, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0153] If there is no current output feedback from the left and right loading valves, the main control module determines that the valve output is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0154] If none of the above abnormalities are identified, the main control module determines that the measuring trolley has derailed or the mechanical system has failed, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0155] As attached Figure 7 As shown, over-track abnormality detection: After the tamping head is inserted, the onboard network control system obtains track-shifting diagnostic data, including the target current, feedback current, and track shifting amount. If the change in track shifting amount is greater than 0 after the track shifting current is determined to be 0 for a set period of time (e.g., 100ms) over a number of consecutive picks (e.g., 5 picks), the main control module determines that an over-track abnormality has occurred.

[0156] If the target current for the shifting channel is greater than a first current threshold (e.g., 1 mA), but the feedback current for the shifting channel is less than a second current threshold (e.g., 0.5 mA), the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0157] If the shift target current is less than the second current threshold (e.g., 0.5 mA), but the shift feedback current is greater than the third current threshold (e.g., 0.1 mA), the main control module determines that it is an electrical zero offset or a servo valve zero offset, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0158] If none of the above abnormalities are identified, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0159] As attached Figure 8As shown, under-tracking anomaly detection: After the tamping head is inserted, the onboard network control system obtains track-shifting diagnostic data, including the track-shifting target current, track-shifting feedback current, and track-shifting amount. If the track-shifting amount fails to return to 0 after a set time interval (e.g., 100ms) after several consecutive picks (e.g., 5 picks), the main control module determines that an under-tracking anomaly has occurred.

[0160] If the target current for the shifting channel is greater than a first current threshold (e.g., 1 mA), but the feedback current for the shifting channel is less than a second current threshold (e.g., 0.5 mA), the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0161] If the shift target current is less than the second current threshold (e.g., 0.5 mA), but the shift feedback current is greater than the third current threshold (e.g., 0.1 mA), the main control module determines that it is an electrical zero offset or a servo valve zero offset, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0162] If none of the above abnormalities are identified, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0163] As attached Figure 9 As shown, track-lift anomaly detection: After the tamping head is inserted, the onboard network control system obtains track-lift diagnosis-related data including the track-lift target current, track-lift feedback current, and track-lift quantity. If the track-lift quantity changes by more than 0 after the track-lift current is determined to be 0 for a set period of time (e.g., 100ms) for a number of consecutive picks (e.g., 5 picks), the main control module determines that a track-lift anomaly has occurred.

[0164] If the starting target current is greater than the first current threshold (e.g., 1mA), but the starting feedback current is less than the second current threshold (e.g., 0.5mA), the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides solutions and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0165] If the starting target current is less than the second current threshold (e.g., 0.5 mA), but the starting feedback current is greater than the third current threshold (e.g., 0.1 mA), the main control module determines that it is an electrical zero offset or a servo valve zero offset, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0166] If none of the above abnormalities are identified, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0167] As attached Figure 10 As shown, under-tracking abnormality detection: After the tamping head is inserted, the onboard network control system obtains track-starting diagnostic data, including the track-starting target current, track-starting feedback current, and track-starting quantity. If the track-starting quantity fails to return to 0 after a set time interval (e.g., 100ms) after several consecutive tamping operations (e.g., five tamping operations), the main control module determines that an under-tracking abnormality has occurred.

[0168] If the starting target current is greater than the first current threshold (e.g., 1mA), but the starting feedback current is less than the second current threshold (e.g., 0.5mA), the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides solutions and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0169] If the starting target current is less than the second current threshold (e.g., 0.5 mA), but the starting feedback current is greater than the third current threshold (e.g., 0.1 mA), the main control module determines that it is an electrical zero offset or a servo valve zero offset, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0170] If none of the above abnormalities are identified, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0171] As attached Figure 11 As shown in the figure, abnormal track-starting current detection: After the tamping head is inserted, the onboard network control system obtains track-starting diagnostic data, including the track-starting target current, track-starting feedback current, and track-starting amount. If a number of consecutive picks (e.g., five picks) determine that the track-starting amount and the track-starting current are not linearly related, the main control module determines that the track-starting current is abnormal.

[0172] If the parameters set by the vehicle network control system are outside the parameter threshold, the main control module will determine that the parameter setting is abnormal, provide solutions and treatment measures based on the fault tree, and feed back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0173] If the voltage of the acquisition module is abnormal, the main control module determines that the analog acquisition module in the vehicle network control system is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system;

[0174] If the acquisition channel is not open and the acquisition value does not change, the main control module determines that the acquisition channel is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system;

[0175] If none of the above abnormalities are determined, the main control module will determine that the cause is other, provide solutions and treatment measures based on the fault tree, and feed back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0176] As attached Figure 12 As shown in the figure, abnormal shifting current detection: After the tamping head is inserted, the onboard network control system obtains relevant data related to shifting diagnosis, including the shifting target current, shifting feedback current, and shifting amount. If the shifting amount and shifting current are not linearly related after several consecutive picks (such as five picks), the main control module determines that the shifting current is abnormal.

[0177] If the parameters set by the vehicle network control system are outside the parameter threshold, the main control module will determine that the parameter setting is abnormal, provide solutions and treatment measures based on the fault tree, and feed back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0178] If the voltage of the acquisition module is abnormal, the main control module determines that the analog acquisition module in the vehicle network control system is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system;

[0179] If the acquisition channel is not open and the acquisition value does not change, the main control module determines that the acquisition channel is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system;

[0180] If none of the above abnormalities are determined, the main control module will determine that the cause is other, provide solutions and treatment measures based on the fault tree, and feed back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0181] As attached Figure 13 As shown in the figure, sensor data anomaly detection: The vehicle network control system collects diagnostic data related to sensors, including leveling sensors and versine sensors, at a set time interval (e.g., 100ms). If the sensor fluctuation value is greater than a set threshold (e.g., 20mm) for several consecutive cycles (e.g., five), the main control module determines that the sensor is abnormal.

[0182] If the sensor calibration parameters are outside the parameter threshold, the main control module determines that the sensor parameter calibration is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0183] If the voltage of the acquisition module is abnormal, the main control module determines that the analog acquisition module in the vehicle network control system is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system;

[0184] If the sensor communication cycle is abnormal, the main control module will determine that it is a communication abnormality, provide solutions and treatment measures based on the fault tree, and feed back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0185] If there is no abnormality as mentioned above, the main control module determines that the fault is with the sensor itself, provides solutions and treatment measures according to the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0186] As shown in Table 3 below, active diagnostic exception table management mainly establishes a diagnostic exception table in the database on the server side for client-side call query statistics.

[0187]

[0188]

[0189] Table 3 Diagnosis results

[0190] Example 3

[0191] The active diagnostic method for tamping vehicles described in this embodiment displays intelligent diagnosis and alarm prompts based on the active diagnostic fault tree and analog value change trends. The main control module collects and records bus data and saves it to files, implementing functions including active diagnosis, logical diagnosis, expert diagnosis, operation data recording and analysis, and work data recording and analysis. It also manages data operations and maintenance information, including basic vehicle information, equipment information, maintenance information, fault records, and operation records. The wireless routing module enables network access to onboard devices through the onboard wireless network. The intelligent diagnostic display intelligently diagnoses faults in the onboard network control system and intelligently monitors the lifecycle of each module in the onboard network control system. When access is granted to the onboard public network, the main control module and the intelligent diagnostic display establish a connection with the remote diagnostic system via the wireless routing module, enabling real-time remote monitoring, diagnosis, and data synchronization. Client interactive software runs on the onboard mobile display, accessing the main control module via the wireless local area network, enabling human-machine interface access. When access is denied to the onboard public network, offline collected data files can be uploaded to the remote diagnostic system.

[0192] As attached Figure 14 As shown, an embodiment of the active diagnosis method of a tamping vehicle of the present application, the specific processing flow is as follows:

[0193] When the diagnostic process begins, it first obtains diagnostic data from the Ethernet or CAN bus. After the data is verified, the abnormal trend of each data item is determined. The fault cause is analyzed based on the fault tree and troubleshooting measures are given. If the fault cause cannot be determined, the fault probability is given. The diagnostic results are recorded and fed back.

[0194] As attached Figure 15 As shown, an embodiment of the active diagnosis method of a tamping vehicle of the present application includes an active diagnosis process S1), which specifically includes the following steps:

[0195] S11) The on-board network control system obtains diagnostic data related to a single tamping head, including tamping feedback current, target depth, and actual depth, and transmits the data to the main control module each time the tamping head is inserted. If, within a set time range for the tamping head insertion, the interpolated value of the target depth and the actual depth of the tamping head insertion exceeds a set threshold for several consecutive times, the main control module determines that the tamping head insertion is abnormal.

[0196] S12) If the parameters set by the vehicle network control system are outside the parameter threshold, the main control module determines that the parameter setting is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0197] S13) If there is no tamping feedback current from the tamping down-insertion proportional valve, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0198] S14) If there is still tamping feedback current when the tamping head is inserted to the deepest position, the main control module determines that there is a line knot problem, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0199] S15) If the error between the tamping feedback current and the actual output current is greater than the set value, it is determined that the valve output is abnormal, and a solution and treatment measures are given according to the fault tree and the treatment results are fed back to the intelligent diagnostic display and / or remote diagnostic system;

[0200] S16) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0201] As attached Figure 16 As shown, the active diagnosis method for a tamping vehicle further includes an active diagnosis process S2), which includes the following steps:

[0202] S21) The onboard network control system obtains diagnostic data related to the left and right inner and outer tamping heads, including tamping feedback current, target depth, and actual depth, each time the tamping head is inserted, and sends it to the main control module; if the difference in the actual depth of the left and right inner and outer tamping heads is greater than a set threshold for several consecutive insertions within the set time range of the tamping head insertion, the main control module determines that the tamping head insertion is abnormal;

[0203] S22) If the parameters set by the vehicle network control system are outside the parameter threshold, the main control module determines that the parameter setting is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0204] S23) If there is no tamping feedback current from the tamping down-insertion proportional valve, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0205] S24) If there is still tamping feedback current when the tamping head is inserted to the deepest position, the main control module determines that there is a line knot problem, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system;

[0206] S25) If the error between the tamping feedback current and the actual output current is greater than the set value, it is determined that the valve output is abnormal, and a solution and treatment measures are given according to the fault tree and the treatment results are fed back to the intelligent diagnostic display and / or remote diagnostic system;

[0207] S26) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0208] As attached Figure 17 As shown, the active diagnosis method for a tamping vehicle further includes an active diagnosis process S3), which includes the following steps:

[0209] S31) The onboard network control system obtains alignment diagnosis-related data including lateral feedback current, target position, and actual position each time the tamping head is inserted, and sends it to the main control module; if the difference between the lateral target position and the actual position of the tamping centering is greater than a set threshold for several consecutive times within the set time range of the tamping head insertion, the main control module determines that the tamping centering is abnormal;

[0210] S32) If the parameters set by the vehicle network control system are outside the parameter threshold, the main control module determines that the parameter setting is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0211] S33) If there is no lateral feedback current, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0212] S34) If the error between the tamping feedback current and the actual output current is greater than a set threshold, the main control module determines that the valve output is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0213] S35) If there is no abnormality as described above, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0214] As attached Figure 18 As shown, the active diagnosis method for a tamping vehicle further includes an active diagnosis process S4), which includes the following steps:

[0215] S41) The vehicle network control system performs logical judgment at set intervals to obtain the electronic pendulum and the computer theoretical super-high value. When the absolute value of the difference between the electronic pendulum and the computer theoretical super-high value is greater than a set first threshold, and the accumulated abnormal data is greater than a set second threshold, the main control module determines that the measuring vehicle is abnormal;

[0216] S42) If there are no left or right loading switch signals, it is determined that the measuring trolley is not loading, and a solution and treatment measures are given according to the fault tree and the treatment results are fed back to the intelligent diagnostic display and / or remote diagnostic system;

[0217] S43) If the left and right loading valves have no output, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0218] S44) If there is no current output feedback from the left and right loading valves, the main control module determines that the valve output is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0219] S45) If there is no abnormality as described above, the main control module determines that the measuring trolley has derailed or the mechanical system has failed, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0220] As attached Figure 19 As shown, the active diagnosis method for a tamping vehicle further includes an active diagnosis process S5), which includes the following steps:

[0221] S51) After the tamping head is inserted, the onboard network control system obtains track shifting diagnosis-related data including the track shifting target current, track shifting feedback current, and track shifting amount. If the change in track shifting amount is greater than 0 after the track shifting current is determined to be 0 at a set time for several consecutive times, the main control module determines that there is an over-tracking abnormality.

[0222] S52) If the shift target current is greater than the first current threshold, but the shift feedback current is less than the second current threshold, the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0223] S53) If the shift target current is less than the second current threshold, but the shift feedback current is greater than the third current threshold, the main control module determines that an electrical zero offset or a servo valve zero offset has occurred, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or the remote diagnostic system;

[0224] S54) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0225] As attached Figure 20 As shown, the active diagnosis method for a tamping vehicle further includes an active diagnosis process S6), which includes the following steps:

[0226] S61) After the tamping head is inserted, the onboard network control system obtains track shifting diagnosis-related data including the track shifting target current, track shifting feedback current, and track shifting amount. If the track shifting amount cannot return to 0 after a set period of time for a number of consecutive tamping operations, the main control module determines that there is an under-tracking abnormality.

[0227] S62) If the shift target current is greater than the first current threshold, but the shift feedback current is less than the second current threshold, the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0228] S63) If the shift target current is less than the second current threshold, but the shift feedback current is greater than the third current threshold, the main control module determines that an electrical zero offset or a servo valve zero offset has occurred, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or the remote diagnostic system;

[0229] S64) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0230] As attached Figure 21 As shown, the active diagnosis system method for tamping vehicles further includes an active diagnosis process S7), which includes the following steps:

[0231] S71) After the tamping head is inserted, the onboard network control system obtains track-lifting diagnosis-related data including the track-lifting target current, track-lifting feedback current, and track-lifting amount; if the track-lifting amount changes by more than 0 after the track-lifting current is determined to be 0 at a set time for several consecutive times, the main control module determines that a track-lifting abnormality has occurred;

[0232] S72) If the starting target current is greater than the first current threshold, but the starting feedback current is less than the second current threshold, the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0233] S73) If the starting target current is less than the second current threshold, but the starting feedback current is greater than the third current threshold, the main control module determines that it is an electrical zero offset or a servo valve zero offset, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or the remote diagnostic system;

[0234] S74) If none of the above abnormalities are determined, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0235] As attached Figure 22 As shown, the active diagnosis method for a tamping vehicle further includes an active diagnosis process S8), which includes the following steps:

[0236] S81) After the tamping head is inserted, the onboard network control system obtains track-lifting diagnosis-related data including the track-lifting target current, track-lifting feedback current, and track-lifting amount. If the track-lifting amount fails to return to 0 after a set period of time, the main control module determines that there is an under-tracking abnormality.

[0237] S82) If the starting target current is greater than the first current threshold, but the starting feedback current is less than the second current threshold, the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system;

[0238] S83) If the starting target current is less than the second current threshold, but the starting feedback current is greater than the third current threshold, the main control module determines that it is an electrical zero offset or a servo valve zero offset, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or the remote diagnostic system;

[0239] S84) If none of the above abnormalities are determined, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0240] As attached Figure 23 As shown, the active diagnosis method for a tamping vehicle further includes an active diagnosis process S9), which includes the following steps:

[0241] S91) After the tamping head is inserted, the onboard network control system obtains track-starting diagnosis-related data including the track-starting target current, the track-starting feedback current, and the track-starting amount; if a number of consecutive picks determine that the track-starting amount and the track-starting current are not linearly related, the main control module determines that the track-starting current is abnormal;

[0242] S92) If the parameters set by the vehicle network control system are outside the parameter threshold, the main control module determines that the parameter setting is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0243] S93) If the acquisition module voltage is abnormal, the main control module determines that the analog acquisition module in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0244] S94) If the acquisition channel is not open and the acquisition value does not change, the main control module determines that the acquisition channel is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0245] S95) If there is no abnormality as described above, the main control module determines that the cause is other than the cause, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0246] As attached Figure 24As shown, the active diagnosis method for a tamping vehicle further includes an active diagnosis process S10), which includes the following steps:

[0247] S101) After the tamping head is inserted, the onboard network control system obtains track shifting diagnosis-related data including the track shifting target current, the track shifting feedback current, and the track shifting amount; if the track shifting amount and the track shifting current are not linearly related for several consecutive times, the main control module determines that the track shifting current is abnormal;

[0248] S102) If the parameters set by the vehicle network control system are outside the parameter threshold, the main control module determines that the parameter setting is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0249] S103) If the acquisition module voltage is abnormal, the main control module determines that the analog acquisition module in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0250] S104) If the acquisition channel is not open and the acquisition value does not change, the main control module determines that the acquisition channel is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0251] S105) If there is no abnormality as described above, the main control module determines that the cause is other than the cause, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system.

[0252] As attached Figure 25 As shown, the active diagnostic method for a tamping vehicle further includes a sensor diagnostic process S11), which includes the following steps:

[0253] S111) The vehicle network control system acquires sensor diagnosis-related data, including the leveling sensor and the versine sensor, during a collection cycle at a set time interval; if the sensor fluctuation value is determined to be greater than a set threshold for several consecutive cycles, the main control module determines that the sensor is abnormal;

[0254] S112) If the sensor calibration parameters are outside the parameter threshold, the main control module determines that the sensor parameter calibration is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0255] S113) If the acquisition module voltage is abnormal, the main control module determines that the analog acquisition module in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0256] S114) If the sensor communication cycle is abnormal, the main control module determines that it is a communication abnormality, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system;

[0257] S115) If there is no abnormality as described above, the main control module determines that the sensor itself is at fault, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system.

[0258] In the description of this application, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly disposed on the other element or indirectly disposed on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element.

[0259] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0260] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0261] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0262] By implementing the technical solution of the active diagnosis method for tamping vehicles described in the specific embodiments of this application, the following technical effects can be achieved:

[0263] (1) The active diagnostic method for tamping vehicles described in the specific embodiments of this application has simple control logic, allowing operators to quickly locate and handle problems, with short maintenance cycles and high efficiency, which can improve the efficiency of on-site fault handling and enhance the level and efficiency of on-site and vehicle operation and maintenance management;

[0264] (2) The active diagnosis method for tamping vehicles described in the specific embodiment of the present application uses an active diagnosis fault tree method to provide an alarm indication of the tamping vehicle fault point, which can quickly locate the fault point and enable the network system to perform a corresponding security blockade, greatly improving the efficiency of tamping vehicle fault detection;

[0265] (3) The active diagnosis method for tamping vehicles described in the specific embodiments of this application has simplified active diagnosis and alarm operation steps, a simpler diagnosis process, a more comprehensive diagnosis range, a higher degree of intelligence, more standardized diagnostic information, a more intuitive diagnostic interface, and a higher user usage rate;

[0266] (4) The active diagnosis method for tamping vehicles described in the specific embodiment of the present application simplifies the diagnosis process, realizes a user-friendly and intuitive display interface and easy-to-read and understand fault diagnosis information, and optimizes serial single-item diagnosis to parallel multiple-item diagnosis. On the basis of passive manual diagnosis, automatic active diagnosis is added, and multi-level cumbersome operations are optimized to single-level simple operations.

[0267] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0268] The above description is only a preferred embodiment of the present application and does not constitute any formal limitation to the present application. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solution of the present application, or modify it into an equivalent embodiment with equivalent changes, without departing from the spirit and technical solution of the present application. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application still falls within the scope of protection of the technical solution of the present application.

Claims

1. A tamping vehicle active diagnosis method, characterized in that: The method includes a tamping head insertion diagnosis process S1), which includes the following steps: S11) The onboard network control system obtains diagnostic data related to a single tamping head, including tamping feedback current, target depth, and actual depth, and transmits it to the main control module each time the tamping head is inserted. If, within the set time range for the tamping head insertion, the interpolated value between the target depth and the actual depth for several consecutive insertions exceeds a set threshold, the main control module determines that the tamping head insertion is abnormal. S12) If the parameters set by the vehicle network control system are outside the parameter threshold, the main control module determines that the parameter settings are abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system; S13) If there is no tamping feedback current from the tamping down proportional valve, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system; S14) If there is still tamping feedback current when the tamping head is inserted to the deepest position, the main control module determines that there is a line knot problem, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system; S15) If the error between the tamping feedback current and the actual output current is greater than the set value, it is determined that the valve output is abnormal, and a solution and treatment measures are provided according to the fault tree, and the treatment results are fed back to the intelligent diagnostic display and / or remote diagnostic system; S16) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system; The method further includes a tamping head synchronous diagnosis process S2), which includes the following steps: S21) The onboard network control system obtains diagnostic data related to the left and right inner and outer tamping heads, including tamping feedback current, target depth, and actual depth, each time the tamping head is inserted, and transmits the data to the main control module; if the difference in the actual depth of the left and right inner and outer tamping heads is greater than a set threshold for several consecutive insertions within a set time range for the tamping head insertion, the main control module determines that the tamping head insertion is abnormal; S22) If the parameters set by the vehicle network control system are outside the parameter threshold, the main control module determines that the parameter settings are abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system; S23) If there is no tamping feedback current from the tamping down proportional valve, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system; S24) If there is still tamping feedback current when the tamping head is inserted to the deepest position, the main control module determines that there is a line knot problem, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system; S25) If the error between the tamping feedback current and the actual output current is greater than the set value, it is determined that the valve output is abnormal, and a solution and treatment measures are provided according to the fault tree, and the treatment results are fed back to the intelligent diagnostic display and / or remote diagnostic system; S26) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures according to the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system.

2. The active diagnosis method for a tamping vehicle according to claim 1, characterized in that: The method further includes a tamping head centering diagnosis process S3), which includes the following steps: S31) The onboard network control system acquires alignment diagnosis-related data including lateral feedback current, target position, and actual position each time the tamping head is inserted, and transmits the data to the main control module; if the difference between the lateral target position and the actual position of the tamping centering exceeds a set threshold for several consecutive times within a set time range of the tamping head insertion, the main control module determines that the tamping centering is abnormal; S32) If the parameter set by the vehicle network control system is outside the parameter threshold, the main control module determines that the parameter setting is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S33) If there is no lateral feedback current, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S34) If the error between the tamping feedback current and the actual output current is greater than a set threshold, the main control module determines that the valve output is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system; S35) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures according to the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system.

3. The active diagnosis method for a tamping vehicle according to claim 1 or 2, characterized in that: The method further includes a measurement trolley motion diagnosis process (S4), which includes the following steps: S41) The vehicle network control system performs logical judgment at set intervals to obtain the electronic pendulum and the computer's theoretical over-height value. When the absolute value of the difference between the electronic pendulum and the computer's theoretical over-height value is greater than a set first threshold, and the accumulated abnormal data is greater than a set second threshold, the main control module determines that the measuring vehicle is abnormal. S42) If there are no left or right loading switch signals, it is determined that the measuring trolley is not loading, and a solution and treatment measures are provided according to the fault tree, and the treatment results are fed back to the intelligent diagnostic display and / or remote diagnostic system; S43) If the left and right loading valves have no output, the main control module determines that the digital output module channel output in the vehicle network control system is abnormal, provides a solution and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system; S44) If there is no current output feedback from the left and right loading valves, the main control module determines that the valve output is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system; S45) If no abnormality is detected, the main control module determines that the measuring vehicle has derailed or the mechanical system has failed, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system.

4. The active diagnosis method for a tamping vehicle according to claim 3, characterized in that: The method further includes an over-diagnosis process S5), which includes the following steps: S51) After the tamping head is inserted, the onboard network control system obtains track shifting diagnosis-related data including the track shifting target current, the track shifting feedback current, and the track shifting amount; if the change in the track shifting amount after the tamping head determines that the track shifting current is 0 at a set time interval for several consecutive times is greater than 0, the main control module determines that there is an over-track shifting abnormality; S52) If the shift target current is greater than the first current threshold, but the shift feedback current is less than the second current threshold, the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S53) If the shift target current is less than the second current threshold, but the shift feedback current is greater than the third current threshold, the main control module determines that an electrical zero offset or a servo valve zero offset has occurred, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S54) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures according to the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system.

5. The active diagnostic method for a tamping vehicle according to claim 1, 2 or 4, characterized in that: The method further includes an under-allocated channel diagnosis process S6), which includes the following steps: S61) After the tamping head is inserted, the onboard network control system obtains track shifting diagnosis-related data including the track shifting target current, the track shifting feedback current, and the track shifting amount; if the track shifting amount fails to return to 0 after a set period of time for a number of consecutive tamping operations, the main control module determines that there is an under-tracking abnormality; S62) If the shift target current is greater than the first current threshold, but the shift feedback current is less than the second current threshold, the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S63) If the shift target current is less than the second current threshold, but the shift feedback current is greater than the third current threshold, the main control module determines that an electrical zero offset or a servo valve zero offset has occurred, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S64) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system.

6. The active diagnosis method for a tamping vehicle according to claim 5, characterized in that: The method further includes a diagnostic process S7), which includes the following steps: S71) The onboard network control system obtains track-lifting diagnosis-related data including track-lifting target current, track-lifting feedback current, and track-lifting amount after the tamping head is inserted; if the track-lifting amount changes by more than 0 after the track-lifting current is determined to be 0 at set intervals for several consecutive times, the main control module determines that a track-lifting abnormality has occurred; S72) If the starting target current is greater than the first current threshold, but the starting feedback current is less than the second current threshold, the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S73) If the starting target current is less than the second current threshold, but the starting feedback current is greater than the third current threshold, the main control module determines that there is an electrical zero offset or a servo valve zero offset, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S74) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system.

7. The active diagnostic method for a tamping vehicle according to claim 1, 2, 4 or 6, characterized in that: The method further includes a fault diagnosis process S8), which includes the following steps: S81) After the tamping head is inserted, the onboard network control system obtains track-lifting diagnosis-related data including track-lifting target current, track-lifting feedback current, and track-lifting amount; if the track-lifting amount fails to return to 0 after a set period of time for a number of consecutive tamping operations, the main control module determines that there is an under-tracking abnormality; S82) If the starting target current is greater than the first current threshold, but the starting feedback current is less than the second current threshold, the main control module determines that the digital output module channel output or valve output in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S83) If the starting target current is less than the second current threshold, but the starting feedback current is greater than the third current threshold, the main control module determines that there is an electrical zero offset or a servo valve zero offset, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S84) If no abnormality is detected, the main control module determines that the fault is in the hydraulic system or mechanical system, provides solutions and treatment measures according to the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system.

8. The active diagnosis method for a tamping vehicle according to claim 7, characterized in that: The method further includes a starting current diagnosis process S9), which includes the following steps: S91) The onboard network control system obtains track-starting diagnosis-related data including track-starting target current, track-starting feedback current, and track-starting amount after the tamping head is inserted; if a number of consecutive picks determine that the track-starting amount and the track-starting current are not linearly related, the main control module determines that the track-starting current is abnormal; S92) If the parameter set by the vehicle network control system is outside the parameter threshold, the main control module determines that the parameter setting is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S93) If the acquisition module voltage is abnormal, the main control module determines that the analog acquisition module in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S94) If the acquisition channel is not open and the acquisition value does not change, the main control module determines that the acquisition channel is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S95) If there is no abnormality as described above, the main control module determines that the cause is other than the cause, provides solutions and processing measures according to the fault tree, and feeds back the processing results to the intelligent diagnosis display and / or remote diagnosis system.

9. The active diagnostic method for a tamping vehicle according to claim 1, 2, 4, 6 or 8, characterized in that: The method further includes a switching current diagnosis process S10), which includes the following steps: S101) After the tamping head is inserted, the on-board network control system obtains track shifting diagnosis-related data including the track shifting target current, the track shifting feedback current, and the track shifting amount; if a number of consecutive tamping hammers determine that the track shifting amount and the track shifting current are not linearly related, the main control module determines that the track shifting current is abnormal; S102) If the parameters set by the vehicle network control system are outside the parameter threshold, the main control module determines that the parameter settings are abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system; S103) If the acquisition module voltage is abnormal, the main control module determines that the analog acquisition module in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S104) If the acquisition channel is not open and the acquisition value does not change, the main control module determines that the acquisition channel is abnormal, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnostic display and / or remote diagnostic system; S105) If no abnormality is detected, the main control module determines that the cause is other than the cause, provides solutions and treatment measures according to the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system.

10. The active diagnosis method for a tamping vehicle according to claim 9, characterized in that: The method further includes a sensor diagnosis process S11), which includes the following steps: S111) The vehicle network control system acquires sensor diagnosis-related data, including the leveling sensor and the versine sensor, during a collection cycle at a set time interval; if the sensor fluctuation value is determined to be greater than a set threshold for several consecutive cycles, the main control module determines that the sensor is abnormal; S112) If the sensor calibration parameters are outside the parameter threshold, the main control module determines that the sensor parameter calibration is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S113) If the acquisition module voltage is abnormal, the main control module determines that the analog acquisition module in the vehicle network control system is abnormal, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S114) If the sensor communication cycle is abnormal, the main control module determines that it is a communication abnormality, provides a solution and processing measures based on the fault tree, and feeds back the processing results to the intelligent diagnostic display and / or remote diagnostic system; S115) If no abnormality is detected, the main control module determines that the sensor itself is faulty, provides solutions and treatment measures based on the fault tree, and feeds back the treatment results to the intelligent diagnosis display and / or remote diagnosis system.

Images