Tamping wagon vehicle-mounted intelligent diagnosis operation and maintenance device and system

Abstract

The invention discloses a tamping wagon vehicle-mounted intelligent diagnosis operation and maintenance device and system, and the device comprises a main control module which collects bus data and stores the bus data as a file, and is provided with a vehicle-mounted database which stores and manages data operation and maintenance information; the mobile routing module is connected with the main control module and realizes networking access to vehicle-mounted equipment through vehicle-mounted wireless networking; when the vehicle-mounted public network opens the access authority, the main control module and the intelligent diagnosis display are connected with the remote diagnosis system through the mobile routing module; the intelligent diagnosis display or the mobile panel is connected with the main control module through the mobile routing module and receives the intelligent diagnosis data sent by the main control module; when the vehicle-mounted public network has no access authority, the intelligent diagnosis display or the mobile tablet computer can collect data files offline and upload the data files to the remote diagnosis system. The method can solve the technical problems that an existing diagnosis operation and maintenance system tamping wagon control logic is complex, an operator cannot rapidly position and process the problems, and no analysis means is provided for complex non-logic faults.

Description

Technical Field

[0001] The present application relates to the technical field of railway engineering machinery, and in particular to an on-board intelligent diagnosis and operation and maintenance device and system for a tamping vehicle. Background Art

[0002] The tamping machine is a large-scale road maintenance machine used for the maintenance and repair of railway lines. It is widely used in major railway bureaus for its high operating efficiency and high operating precision. At present, with the continuous improvement of the intelligent information level of the railway industry, various railway bureaus have put forward higher requirements for on-site fault diagnosis, processing and analysis, and data operation and maintenance management. By integrating advanced sensors, data processing and analysis technologies, on-board intelligent diagnosis can monitor the operating status of the tamping machine in real time, including the working conditions of each component, performance parameters, and potential fault information. This can not only detect and solve potential problems in a timely manner and avoid the occurrence or deterioration of faults, but also provide maintenance personnel with accurate fault location and maintenance guidance, thereby greatly improving maintenance efficiency and quality. The operation and maintenance management collects and analyzes the operating data of the tamping machine, establishes a single vehicle database on the vehicle end, and provides data support for equipment maintenance and optimization.

[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. and China State Railway Group Co., Ltd. on February 16, 2016, and published on June 22, 2016, with publication number CN105700516A. The application discloses a remote diagnosis system for existing rail engineering machinery, including: a vehicle-mounted host, a switch, a front-end analog quantity acquisition board, a multi-channel analog quantity acquisition board, a program-controlled host board, one or more driving monitoring digital quantity acquisition modules, and one or more driving monitoring analog quantity acquisition modules. The vehicle-mounted host exchanges data with third-party equipment through the switch, and the front-end analog quantity acquisition board, the multi-channel analog quantity acquisition board, and the program-controlled host board transmit the collected operating status data of the rail engineering machinery to the vehicle-mounted host through the field bus. The driving monitoring digital quantity acquisition module and the driving monitoring analog quantity acquisition module transmit the collected driving safety monitoring data of the rail engineering machinery to the vehicle-mounted host. The invention can solve the technical problems of difficult information collection and monitoring of existing rail engineering machinery, low fault handling efficiency, difficult on-site management, and difficult installation and wiring of vehicle-mounted equipment.

[0005] Prior art 2 is Wang Yan's master's thesis "Research on Health Diagnosis of the Tamping Operation System of a Tamping Vehicle" published in the 12th issue of "Journal of Shijiazhuang Railway University" in 2014. Based on the systematic analysis of the working principle of the tamping operation system of the DCL-32 tamping vehicle, this paper studies the failure mechanism of the main components of each subsystem, derives the full set of measurement points of each subsystem, and gives corresponding troubleshooting solutions for different faults. For the electrical system, a logical diagnosis fault tree was constructed and an expert reasoning fault library was established. For the hydraulic system, a combination of AMESim simulation and experiment was used to conduct fault simulation and identification research. For the mechanical system, a fault diagnosis method based on spectrum analysis was studied. In the LabVIEW development environment, based on the modular design concept, the tamping operation health diagnosis system software of the tamping vehicle was developed, realizing the online monitoring, fault alarm and fault identification functions of the tamping operation system of the tamping vehicle.

[0006] However, the existing technology has technical defects such as complex control logic of tamping vehicles, inability of operators to quickly locate and handle problems, lack of analytical methods for complex non-logical faults, long-term arrangement of professional personnel to follow the vehicle for handling, long cycle, low efficiency, etc. Therefore, developing a large locomotive-mounted intelligent diagnosis and operation and maintenance system for tamping vehicles to improve the efficiency of on-site fault handling and improve the operation and maintenance management level and efficiency of the site and vehicles has become a technical problem that needs to be solved urgently. Summary of the invention

[0007] In view of this, the purpose of this application is to provide an on-board intelligent diagnostic and operation and maintenance device and system for a tamping vehicle to solve the technical problems of the existing diagnostic and operation and maintenance system, such as the complex control logic of the tamping vehicle, the operator's inability to quickly locate and handle problems, and the lack of analysis methods for complex non-logical faults.

[0008] In order to achieve the above-mentioned invention purpose, the present application specifically provides a technical implementation scheme of an on-board intelligent diagnosis and operation and maintenance device for a tamping vehicle, including:

[0009] The main control module collects and records bus data and saves it as a file, realizing logical functions including active diagnosis, logical diagnosis, expert diagnosis, operation data record analysis, and job data record analysis. At the same time, it is equipped with an on-board database to store and manage data operation and maintenance information including basic vehicle information, equipment information, maintenance information, fault records, and operation records.

[0010] The mobile routing module is connected to the main control module and realizes network access to the vehicle-mounted equipment through the vehicle-mounted wireless network; when the vehicle-mounted public network opens access rights, the main control module and the intelligent diagnosis display establish a connection with the remote diagnosis system through the mobile routing module to realize real-time remote monitoring diagnosis and data synchronization on the vehicle;

[0011] The intelligent diagnostic display or mobile tablet realizes Ethernet wired or wireless connection with the main control module through the mobile routing module, and is used to receive the intelligent diagnostic data sent by the main control module to realize active diagnosis, logical diagnosis, expert diagnosis, operation data record analysis, and job data record analysis human-computer interaction. It is used to access the vehicle-mounted database of the main control module to realize human-computer interaction in operation and maintenance management. The intelligent diagnostic display or mobile tablet runs client interaction software, accesses the main control module through the wireless local area network, and realizes human-computer interface access. When the intelligent diagnostic display or mobile tablet has no access rights to the vehicle-mounted public network, it can realize offline collection of data files and upload them to the remote diagnosis system.

[0012] The present application also specifically provides a technical implementation scheme of an on-board intelligent diagnosis and maintenance system for a tamping vehicle, the on-board intelligent diagnosis and maintenance system for a tamping vehicle comprising: an on-board network control system, a remote diagnosis system, and the above-mentioned device. The on-board network control system is connected to a main control module of the on-board intelligent diagnosis and maintenance device, and the main control module and the intelligent diagnosis display establish a wireless connection with the remote diagnosis system through a mobile routing module.

[0013] Furthermore, the vehicle-mounted control network system collects key switches and operating actions, and determines whether to trigger active diagnosis. According to the control logic, it determines whether the systems including high-speed running, hydraulic system, operation running, tamping system, tamping posture, leveling system, track shifting system and automatic centering are working normally. If so, it determines whether the trigger control logic can be output normally. If it can, the operation triggers the program to enter the diagnostic process. The diagnostic process determines whether the logic output is satisfied according to the control logic, and searches the logic formula for the signal state required to satisfy the logic. If it is inconsistent with the current signal state, the alarm bit is filled in the sent communication protocol. The main control module collects the vehicle-mounted control network bus data in real time, analyzes the diagnostic alarm bit according to the vehicle model protocol, and if the alarm bit is set, analyzes the alarm bit information, generates alarm information according to the protocol, stores it in the vehicle-mounted database, and sends it to the intelligent diagnostic display via Ethernet. The intelligent diagnostic display reads and displays the alarm information, queries the fault tree according to the fault code to obtain the cause of the fault and the analysis method, and displays the processing method.

[0014] Furthermore, the vehicle-mounted control network system collects electrical system data and sends the data to the bus network through the bus. The main control module collects vehicle-mounted control network bus data in real time, parses the bus communication data according to the protocol, obtains vehicle-mounted real-time data, and sends the vehicle-mounted real-time data to the intelligent diagnostic display through Ethernet. The intelligent diagnostic display reads the vehicle-mounted real-time data and forms a vehicle-mounted real-time signal table based on the vehicle model data signal table. The intelligent diagnostic display reads the logic configuration file, draws a logic ladder diagram, queries the real-time signal table according to the signal name, and refreshes the ladder diagram signal status display. When the user clicks the query logic and the signal is not satisfied, the fault processing vehicle-mounted database is queried, and the processing measures and location pictures are obtained for display.

[0015] Furthermore, the vehicle control network system collects electrical system data and sends the data to the bus network through the bus; the main control module collects vehicle control network bus data in real time, parses the vehicle bus data according to the vehicle model protocol, cyclically stores the vehicle data of the set time, and determines whether there are abnormalities in the tamping, track starting and running systems. If there is an abnormality, the analog waveform characteristics are analyzed, the fault tree is matched according to the characteristics, the cause of the fault is analyzed according to the probability of occurrence and stored in the vehicle database, and the fault code is sent to the intelligent diagnostic display via Ethernet. The intelligent diagnostic display parses the fault code, queries the fault tree according to the fault code, and obtains the cause of the fault and the treatment measures. The user handles it according to the given treatment measures. After the fault is handled, fill in the fault handling instructions through the intelligent diagnostic display, recalculate the probability of occurrence of each abnormal cause of the fault tree according to the handling instructions, and update the fault tree.

[0016] Furthermore, when the actual insertion depth of the tamping head differs from the set depth by more than a set threshold value in a number of consecutive tamping operation cycles, it is determined that the tamping head insertion is abnormal.

[0017] Furthermore, when the shifting cannot be performed in place within a number of consecutive shifting action execution cycles and the shifting amount does not reach the set minimum threshold, it is determined as under-shifting abnormality. When the shifting amount exceeds the set maximum threshold, it is determined as over-shifting abnormality.

[0018] Furthermore, when the track lifting cannot be performed in place within a number of consecutive pickaxe track lifting action execution cycles, and the track lifting amount does not reach the set minimum threshold, it is determined as insufficient track lifting abnormality. When the track lifting amount exceeds the set maximum threshold, it is determined as excessive track lifting abnormality.

[0019] Furthermore, the vehicle control network system collects electrical system data and sends the data to the bus network through the bus. The main control module collects the vehicle bus data of the vehicle control network in real time, parses the vehicle bus data according to the vehicle model protocol, stores the vehicle data as a binary file, and divides it according to the set file size. The intelligent diagnostic display obtains the vehicle model storage file list, copies the file to the intelligent diagnostic display, parses the file according to the vehicle model protocol and stores it in the vehicle database, queries the data column that needs to be analyzed, and generates a data curve chart or data list.

[0020] Furthermore, the vehicle control network system collects electrical system data and sends the data to the bus network through the bus. The main control module collects the vehicle control network vehicle bus data in real time, parses the vehicle bus data according to the vehicle model protocol, and determines whether the data is operation data including switches, keyboards or user input. If so, the user operation is parsed and stored in the operation record file, and the operation record file is stored by date. The intelligent diagnostic display obtains the operation file list, copies the file to the intelligent diagnostic display, parses the operation data file according to the vehicle model protocol, displays the operation record table including time and operation content, and analyzes whether the operation complies with the regular process according to the operation sequence. If not, the record that does not comply with the process will be marked.

[0021] Furthermore, the vehicle control network system collects electrical system data and sends the data to the bus network through the bus. The main control module collects the vehicle control network vehicle bus data in real time, parses the vehicle bus data according to the vehicle model protocol, determines whether the data is operation quality related data, and if so, stores the operation data as an operation record file by date. The intelligent diagnostic display obtains the operation record file list, copies the file to the intelligent diagnostic display, parses the operation data file according to the vehicle model protocol, displays the operation data list and curve, analyzes the data comparison effect before and after the operation, and exports the operation report.

[0022] Furthermore, the main control module establishes a vehicle-mounted device history database, receives real-time operation commands from the intelligent diagnostic display to add, delete, modify, and query the vehicle-mounted device history table, operates the vehicle-mounted device history table database, and returns the data table of the completed operation to the intelligent diagnostic display. The intelligent diagnostic display provides a human-computer interaction interface, displays the operations of adding, deleting, modifying, and querying the vehicle-mounted device history table, and exports the vehicle-mounted device history table.

[0023] Furthermore, the main control module establishes a vehicle-mounted key equipment maintenance history database, and receives real-time operation commands from the intelligent diagnostic display to add, delete, modify, and query the vehicle-mounted key equipment maintenance, operates the vehicle-mounted key equipment maintenance history table database, and returns the data table of the completed operation to the intelligent diagnostic display. The intelligent diagnostic display provides a human-computer interaction interface, displays the operations of adding, deleting, modifying, and querying the vehicle-mounted key equipment maintenance history table, and determines whether the date of the next maintenance is lower than the set time. If so, it prompts maintenance and exports the vehicle-mounted key equipment maintenance history table. If not, it directly exports the vehicle-mounted key equipment maintenance history table.

[0024] Furthermore, the main control module establishes a vehicle-mounted equipment fault history database, receives real-time operation commands from the intelligent diagnostic display to add, delete, modify, and query the vehicle-mounted equipment fault history table, operates the vehicle-mounted equipment fault history table database, and returns the data table after the operation to the intelligent diagnostic display. The intelligent diagnostic display provides a human-computer interaction interface, displays the operations of adding, deleting, modifying, and querying the vehicle-mounted equipment fault history table, and exports the vehicle-mounted equipment fault history table.

[0025] Furthermore, the vehicle control network system collects electrical system data and sends the data to the bus network through the bus. The main control module establishes an operation record table database, collects vehicle control network bus data in real time, and parses the vehicle bus data according to the vehicle model protocol. When it is determined that the vehicle network power is powered on, the key cumulative quantities including mileage, time, and tamping times are counted until the network power off signal is detected, and the operation record is stored in the database. The intelligent diagnostic display provides a human-computer interaction interface for vehicle operation record database query operations, and returns the vehicle operation record list for display.

[0026] By implementing the technical solution of the on-board intelligent diagnosis and operation and maintenance device and system for tamping vehicles provided by the present application, the following beneficial effects are achieved:

[0027] (1) The on-board intelligent diagnosis and operation and maintenance device and system of the tamping vehicle of the present application has simple control logic, so that the operator can quickly locate and handle the problem, with a short maintenance cycle and high efficiency, which can improve the efficiency of on-site fault handling and improve the operation and maintenance management level and efficiency of the site and the vehicle;

[0028] (2) The on-board intelligent diagnosis and operation and maintenance device and system of the tamping vehicle of the present application can quickly locate the logic problem through the "active diagnosis" + "logic diagnosis" of the tamping vehicle, and provide treatment measures and location screenshots, which can quickly locate and solve the logic fault of the electrical system;

[0029] (3) The on-board intelligent diagnosis and operation and maintenance device and system of the tamping vehicle of the present application, through the "expert diagnosis" positioning of the tamping vehicle, through real-time monitoring of key analog quantities and sensor signals, long-term trend analysis, and combined with the on-board control logic, analyzes and solves difficult problems that cannot be covered by active diagnosis and logical diagnosis;

[0030] (4) The on-board intelligent diagnosis and operation and maintenance device and system of the tamping vehicle of the present application can quickly locate abnormalities in on-board control data and operation through the tamping vehicle's "on-board data analysis" + "operation data analysis", assist in analyzing difficult faults, and provide expert analysis results to help non-professionals deal with difficult faults;

[0031] (5) The present application provides an on-board intelligent diagnostic operation and maintenance device and system for tamping vehicles, which realizes daily form management such as vehicle maintenance and fault history on the vehicle side, thus simplifying the on-site operation and maintenance management process; automatically counts operation and driving information through the on-board recording module, and inputs on-board equipment, maintenance, fault records and other content through a smart display or tablet, thus realizing electronic and intelligent management of operation and maintenance, which can greatly improve the level of on-board operation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order 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 prior art descriptions. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other embodiments can be obtained based on these drawings without creative work.

[0033] Figure 1 This is a system structure block diagram of a specific embodiment of the on-board intelligent diagnosis and operation and maintenance device for a tamping vehicle of the present application;

[0034] Figure 2 This is a schematic block diagram of the system structure of a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0035] Figure 3 This is a flowchart for realizing the active diagnosis function of a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0036] Figure 4 This is a flowchart of the implementation of the logic diagnosis function of a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0037] Figure 5 This is a schematic diagram of the logic diagnosis function interface of a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0038] Figure 6This is a structural block diagram of the expert diagnosis function of a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0039] Figure 7 This is a flowchart for realizing the expert diagnosis function of a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0040] Figure 8 It is a curve diagram showing that the output current of the expert diagnosis is normal in a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0041] Fig. 9 It is a schematic diagram of a theoretical curve of expert diagnosis of track shifting current in a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0042] Fig.10 It is a schematic diagram of a theoretical curve of expert diagnosis of track-starting current in a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0043] Fig.11 This is a data analysis function structure diagram of a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0044] Fig.12 This is a flowchart for realizing the data analysis function of a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0045] Fig.13 This is a block diagram of the operation analysis function of a specific embodiment of the on-board intelligent diagnosis and operation and maintenance system for tamping vehicles of the present application;

[0046] Fig.14 This is a flowchart for realizing the operation analysis function of a specific embodiment of the on-board intelligent diagnosis and operation and maintenance system for tamping vehicles of the present application;

[0047] Fig.15 This is a functional block diagram of the operation data analysis of a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0048] Fig.16 This is a flowchart for realizing the operation data analysis function of a specific embodiment of the on-board intelligent diagnosis and operation and maintenance system for tamping vehicles of the present application;

[0049] Fig.17 This is a functional block diagram of the equipment history management of a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0050] Fig.18 This is a flow chart for realizing the equipment history management function of a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0051] Fig.19 This is a functional block diagram of equipment maintenance management of a specific embodiment of the on-board intelligent diagnosis and operation system for tamping vehicles of the present application;

[0052] Fig. 20 This is a flow chart for realizing the equipment maintenance management function of a specific embodiment of the on-board intelligent diagnosis and operation system for tamping vehicles of the present application;

[0053] Fig.21 This is a functional block diagram of the fault history management of a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0054] Fig. 22 This is a flowchart for realizing the fault history management function of a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0055] Fig.23 This is a functional block diagram of equipment operation record management of a specific embodiment of the on-board intelligent diagnosis and maintenance system for tamping vehicles of the present application;

[0056] Fig.24 It is a flow chart for realizing the equipment operation record management function of a specific embodiment of the on-board intelligent diagnosis and operation and maintenance system of the tamping vehicle of the present application. DETAILED DESCRIPTION

[0057] For the purpose of reference and clarity, the technical terms, abbreviations or abbreviations used below are recorded as follows:

[0058] CAN: Short for Controller Area Network;

[0059] MCM: short for Main Control Module;

[0060] C / S: Abbreviation for Client / Server, which is the client / server architecture mode. In this architecture, the server is responsible for managing the database, processing data requests, and providing services such as business logic processing, while the client is responsible for interacting with the user, sending user requests to the server, and displaying the results returned by the server.

[0061] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the 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 creative work are within the scope of protection of this application.

[0062] As attached Figure 1To Attachment Fig.24 As shown, a specific embodiment of the on-board intelligent diagnosis and operation and maintenance device and system of the tamping vehicle of the present application is given, and the present application is further explained below in conjunction with the drawings and specific embodiments.

[0063] Example 1

[0064] As attached Figure 1 As shown, an embodiment of the on-board intelligent diagnosis and operation and maintenance device of a tamping vehicle of the present application specifically includes:

[0065] The main control module (MCM module) is used as an on-board server to collect and record bus (such as CAN bus) data and save it as a file. It mainly realizes logical functions including active diagnosis, logical diagnosis, expert diagnosis, operation data record analysis, and job data record analysis. At the same time, an on-board database (such as MySQL database) is installed to store and manage data operation and maintenance information including basic vehicle information, equipment information, maintenance information, fault records, and operation records. The core on-board intelligent diagnosis and operation and maintenance server software runs in the main control module, which is a C / S embedded server program, runs core service functions, and manages the on-board database.

[0066] The mobile routing module (vehicle-mounted wireless AP) is connected to the main control module to achieve network access to vehicle-mounted devices through vehicle-mounted wireless networking; when the vehicle-mounted public network opens access rights, the main control module and the intelligent diagnosis display establish a connection with the remote diagnosis system through the mobile routing module to achieve real-time remote monitoring and diagnosis and data synchronization on the vehicle;

[0067] The intelligent diagnostic display or mobile tablet realizes Ethernet wired or wireless connection with the main control module through the mobile routing module, and is used to receive the intelligent diagnostic data sent by the main control module to realize active diagnosis, logical diagnosis, expert diagnosis, operation data record analysis, and job data record analysis human-computer interaction. It is used to access the vehicle-mounted database of the main control module to realize human-computer interaction in operation and maintenance management. The intelligent diagnostic display or mobile tablet runs client interaction software, which accesses the main control module through the wireless LAN to realize human-computer interface access. When the intelligent diagnostic display or mobile tablet has no access rights to the vehicle-mounted public network, it can realize offline collection of data files and upload them to the remote diagnosis system. The intelligent diagnostic display is used to intelligently diagnose faults in the vehicle control system, intelligently monitor the life cycle of each module of the vehicle control network system, and realize voice broadcast function.

[0068] Example 2

[0069] As attached Figure 2As shown, an embodiment of the on-board intelligent diagnosis and operation and maintenance system of a tamping vehicle of the present application specifically includes: an on-board network control system, a remote diagnosis 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 diagnosis and operation and maintenance device, and the main control module and the intelligent diagnosis display establish a wireless connection with the remote diagnosis system through the mobile routing module.

[0070] Active diagnosis determines whether the high-speed travel, hydraulic system, operation travel, tamping system, tamping posture, leveling system, and track shifting system and other system components can work normally according to the control logic. When the user wants to perform a certain operation (such as tamping down to trigger the pedal to step on the action), the user is prompted to locate the reason for the failure to insert, helping the user to quickly troubleshoot common system logic faults. Mainly realize the following functions:

[0071] User execution operation: The user execution operation is used as the trigger condition;

[0072] Active diagnosis: including high-speed running diagnosis, operation running diagnosis, tamping system diagnosis, track shifting system diagnosis, leveling system diagnosis, automatic centering diagnosis and other major system function diagnosis. If a fault is diagnosed, the fault code will be sent to the (on-board) intelligent diagnosis display;

[0073] Fault code analysis: The intelligent diagnostic display analyzes the fault code to obtain the cause of the fault, fault phenomenon, and fault handling measures;

[0074] Fault push: Push fault information to users for viewing.

[0075] The on-board control network system collects key switches and operating actions, and determines whether to trigger active diagnosis. According to the control logic, it determines whether the systems including high-speed running, hydraulic system, operating running, tamping system, tamping posture, leveling system, track shifting system and automatic centering are working normally. If so, it determines whether the trigger control logic can output normally. If so, the operation triggers the program to enter the diagnostic process. The diagnostic process determines whether the logic output is satisfied according to the control logic, and searches the logic formula for the signal state required to satisfy the logic. If it is inconsistent with the current signal state, the alarm bit is filled in the sent communication protocol.

[0076] In the vehicle control network system program, key switches and operation collection (such as direction switch, tamping head insertion, etc.) are implemented. The operation triggers the program to enter the diagnostic process. The diagnostic process determines whether the logic output is satisfied according to the control logic. Taking the descent of the left tamping device as an example, find the signal state required to satisfy the logic in the following logic formula. If the current signal state is inconsistent, an alarm bit is issued.

[0077] Left tamping device descends = [(40^41v0F)^11^45^B1^12^72^4C]v(12^B0^46^4C)

[0078] Among them, the signal is expressed as follows: according to the real-time signal table, if the result of the logic expression is 1, the logic is satisfied. The program automatically determines whether the signal that satisfies the logic expression needs to be 0 or 1, and issues an alarm; ^ = and (AND), v = or (OR).

[0079] 40: Automatic tamping cycle 1×

[0080] 41: Automatic tamping cycle 2×

[0081] 0F: Automatic cycle

[0082] 11: Only clearing the road without tamping it

[0083] 45: Operation Mode - Main Line

[0084] B1: Right lowering pedal

[0085] 12: The tamping device is allowed to be inserted downward

[0086] 72: Operation stopped

[0087] 4C: Use only the right tamping device

[0088] 12: The tamping device is allowed to be inserted downward

[0089] B0: Left descending pedal

[0090] 46: Operation Mode - Turnout

[0091] Right starting limit = 3E^57^6E^AB

[0092] The above formula represents the right-hand limit

[0093] 3E: Flat string tension

[0094] 57: Right start limit

[0095] 6E: Long sleeper on the right

[0096] AB: Manual start from the right

[0097] When the user wants to perform a certain operation (such as triggering the pedal to step on when tamping is done), the user will be prompted with the reason why the tamping cannot be done, helping the user to quickly troubleshoot common system logic faults. The main control module collects the vehicle control network bus data in real time, and parses the diagnostic alarm bit according to the vehicle model protocol. If the alarm bit is set (such as set to 1), the alarm bit information is parsed, and the alarm information (fault code, alarm name, level, and system to which it belongs) is generated according to the protocol, stored in the vehicle database, and sent to the intelligent diagnostic display via Ethernet. The intelligent diagnostic display parses the fault code, reads and displays the alarm information, queries the fault tree according to the fault code to obtain the fault cause and analysis method, and displays the processing method. Push the fault information to the user for viewing.

[0098] The logic diagnosis function is implemented according to the network control logic of the vehicle intelligent diagnosis and maintenance system, as shown in the attached Figure 5 As shown, it is intuitively displayed in the human-computer interaction system in the form of a logic ladder diagram to show whether the signal in the logic is satisfied, which is convenient for checking the logical reason why the module has no output; for each signal that is not satisfied, the processing measures and location screenshots are given to facilitate users to quickly troubleshoot and solve the problem. It mainly realizes the following functions:

[0099] Information collection and calculation: The vehicle control network system collects electrical system signals and sends CAN data to the control network;

[0100] Logic ladder diagram drawing: Draw a logic ladder diagram on the vehicle display to intuitively display various logic display modes;

[0101] Logical signal status display: Display the logical status in the ladder diagram according to the real-time signal;

[0102] Fault push: Push fault cause, handling measures, signal location and other information to the user for processing.

[0103] The vehicle control network system collects electrical system data and sends the data to the bus network through the bus (such as CAN bus). Draw a logic ladder diagram in the intelligent diagnostic display to intuitively display each logic display mode; display the logic state in the ladder diagram according to the real-time signal; push the fault cause, treatment measures, signal location and other information to the user for processing. The main control module collects the vehicle control network bus data in real time, parses the bus communication data according to the protocol, obtains the vehicle real-time data, and sends the vehicle real-time data to the intelligent diagnostic display through Ethernet. The intelligent diagnostic display reads the vehicle real-time data, and forms the vehicle real-time signal table according to the vehicle model data signal table, including signal name, signal type, signal code, and signal value. The intelligent diagnostic display reads the logic configuration file, draws the logic ladder diagram, queries the real-time signal table according to the signal name, and refreshes the ladder diagram signal status display. When the user clicks the query logic does not meet the signal, query the fault processing vehicle database, obtain the treatment measures and location pictures for display.

[0104] The expert diagnosis function implements data analysis based on sensor change trends and key analog quantity change trends. It generates a fault tree as shown in Table 1 below based on vehicle logic and data change trends combined with expert experience to diagnose difficult problems such as non-logical faults, and pushes possible causes to the intelligent diagnosis display for prompt processing. It mainly implements the following functions:

[0105] Information collection and calculation: The vehicle control network system collects electrical system signals and sends CAN data to the control network;

[0106] Initialize fault tree: Initialize the fault tree, analyze the possible causes of difficult faults, provide treatment measures for possible causes, and give the initial fault probability based on experience.

[0107] Data analysis: After five consecutive tamping operation cycles, the difference between the actual tamping head insertion depth and the set depth was greater than the threshold.

[0108] Fault judgment: determine whether the tamping and insertion parameters are within the threshold range; analyze and judge the trend of the output current and feedback current curves.

[0109] Cause analysis: Combine the fault tree to give possible causes, query the treatment measures, and submit them to the display for prompting.

[0110] Probability correction: After the problem is resolved, fill in the fault history table and the system will automatically correct the fault probability based on the cause.

[0111]

[0112] Table 1 Fault tree list

[0113] As attached Figure 6 As shown, the vehicle control network system collects electrical system data and sends the data to the bus network through the bus. The main control module collects vehicle control network bus data in real time, analyzes the vehicle bus data according to the vehicle model protocol, cyclically stores the vehicle data of the set time, and determines whether there are abnormalities in the tamping, track starting and running systems. If there are abnormalities, the analog waveform characteristics are analyzed, the fault tree is matched according to the characteristics, and the cause of the fault is analyzed according to the probability of occurrence and stored in the vehicle database, and the fault code is sent to the intelligent diagnosis display through Ethernet. The intelligent diagnosis display reads the alarm information, analyzes the fault code, queries the fault tree according to the fault code, obtains the cause of the fault and the analysis method, and displays the treatment measures. The user handles the fault according to the given treatment measures. After the fault is handled, fill in whether the abnormality is handled, the actual abnormal cause, and the fault handling instructions through the intelligent diagnosis display, recalculates the probability of occurrence of each abnormal cause of the fault tree according to the handling instructions, and updates the fault tree.

[0114] Taking the fault diagnosis of abnormal tamping head insertion as an example, the fault tree is initialized, the possible causes of difficult faults are analyzed, the treatment measures for possible causes are given, and the initial fault probability is given based on experience. After 5 consecutive tamping and insertion operation cycles, the actual depth of the tamping head insertion is greater than the set depth. Determine whether the tamping and insertion parameters are within the threshold range; analyze and judge the trend of the output current and feedback current curves. Combined with the fault tree, the possible causes are given, and the treatment measures are queried and sent to the intelligent diagnosis display for prompts. After the problem is solved, fill in the fault history table, and the system automatically corrects the fault probability according to the cause. The server software of the main control module collects the CAN data of the vehicle control network in real time, parses the CAN data of the whole vehicle through the protocol, uses redis to store the 10-minute vehicle data link table in a loop, and determines whether there are abnormal items based on the trend of the voltage analog quantity of the tamping and track-starting systems. If there is an abnormality, the current curve is analyzed to diagnose the most likely cause of the fault based on the fault tree probability, store it in the database, and send it to the intelligent diagnosis display via Ethernet.

[0115] When the actual insertion depth of the tamping head differs from the set depth by more than a set threshold (such as 5 mm) for several consecutive tamping operation cycles (such as 500 ms) (such as 5 times), it is determined that the tamping head insertion is abnormal. Figure 8 As shown, based on the actual insertion current and depth fitting curve, determine whether the difference compared with the theoretical curve is too large, and diagnose the cause of the fault according to the following principles.

[0116] 1) Abnormal valve output / abnormal module output -> Are the output current and feedback current in a linear relationship?

[0117] 2) Hydraulic system abnormality->Whether the time for the tamping head to quickly insert into the ballast bed is less than the set time;

[0118] 3) Abnormal line compaction -> Can the output current of the tamping head return to 0 within the set time when it is under the ballast bed?

[0119] When the shifting action of several consecutive picks (such as 5 picks) fails to be executed in place and the shifting amount does not reach the set minimum threshold (such as 0.3mm), it is judged as under-shifting abnormality. When the shifting amount exceeds the set maximum threshold (such as 0.3mm), it is judged as over-shifting abnormality. Fig. 9 As shown, based on the fitting curve of actual shifting current and shifting amount, determine whether the difference compared with the theoretical curve is too large, and diagnose the cause of the fault according to the following principles.

[0120] 1) The clamping time is too short -> the time from the start to the end of the track switching action is less than the threshold (100ms);

[0121] 2) Abnormal valve output / abnormal module output / abnormal AI acquisition->The difference between the given current and the feedback current is greater than the threshold (1mA); there is a given current but no feedback current;

[0122] 3) Electrical zero offset -> No given current, feedback current greater than (1mA);

[0123] 4) Hydraulic system abnormality / sensor abnormality->There is a given current, a feedback current, and no change in the (100ms) shifting positive vector sensor;

[0124] 5) Servo valve mechanical zero offset -> no given current, no feedback current, and the positron sensor changes.

[0125] When the track lifting cannot be completed in place during the execution cycle of several consecutive pickaxes (such as 5 pickaxes) and the track lifting amount does not reach the set minimum threshold (such as 0.3mm), it is judged as insufficient track lifting abnormality. When the track lifting amount exceeds the set maximum threshold (such as 0.3mm), it is judged as excessive track lifting abnormality. Fig.10 As shown, based on the fitting curve of actual starting current and starting quantity, determine whether the difference compared with the theoretical curve is too large, and diagnose the cause of the fault according to the following principles.

[0126] 1) The clamping time is too short -> the time from the start to the end of the start action is less than the threshold (100ms);

[0127] 2) Abnormal valve output / abnormal module output / abnormal AI acquisition->The difference between the given current and the feedback current is greater than the threshold (1mA); there is a given current but no feedback current;

[0128] 3) Electrical zero offset -> No given current, feedback current greater than (1mA);

[0129] 4) Hydraulic system abnormality / sensor abnormality->There is a given current, there is a feedback current, (100ms) the leveling sensor does not change;

[0130] 5) Servo valve mechanical zero offset -> no given current, no feedback current, and the leveling sensor changes.

[0131] Data analysis is used by professionals and managers to analyze on-site data, and provides data support and tools for difficult-to-analyze problems or job optimization. It can monitor the dynamic changes of real-time data curves in the vehicle data list; use data dynamic curves or lists to display; and implement statistical analysis of data trends and abnormal information alarms.

[0132] Signal acquisition and calculation: The vehicle control network system collects electrical system signals and sends CAN data to the control network;

[0133] Data recording and file storage: The vehicle-mounted main control module records all CAN data and stores it as a binary file;

[0134] Data parsing: The on-board display parses the file according to the file format;

[0135] Data analysis: rapid screening, marking and prompting of abnormal values; screening, marking and prompting of threshold ranges; monitoring and calculation of data communication cycles; monitoring, marking and prompting of data mutations.

[0136] As attached Fig.11 As shown, the vehicle control network system collects electrical system data and sends the data to the bus network through the bus. The main control module collects the vehicle bus data of the vehicle control network in real time, parses the vehicle bus data according to the vehicle model protocol, stores the vehicle data as a binary file, and divides it according to the set file size (such as 200M). The intelligent diagnostic display obtains the CAN vehicle model storage file list, copies the file to the intelligent diagnostic display, parses the file according to the vehicle model protocol and stores it in the vehicle database, queries the data column that needs to be analyzed, generates a data curve chart or data list, and performs data analysis (rapid screening, marking, and prompting of abnormal values; screening, marking, and prompting of threshold ranges; monitoring and calculation of data communication cycles; monitoring, marking, and prompting of data mutations).

[0137] Operation analysis is used by professionals and managers to analyze on-site data, and to provide data support for difficult-to-analyze problems or optimize operations and running operations. It can realize time-sharing playback of vehicle-mounted operation records such as vehicle-mounted key switch operations, display key soft keyboard operations, hard keyboard key operations, module parameter modifications, etc. It can analyze the operation and running operation processes to determine whether they comply with the operation specifications, and mark and prompt those that do not comply with the normal operation process, and display them on the (vehicle-mounted) intelligent diagnostic display / mobile tablet. It mainly realizes the following functions:

[0138] Operation data collection: The vehicle control network system collects vehicle operations, such as buttons, switches, accelerators, etc., and sends CAN data to the control network;

[0139] Data recording and file storage: The vehicle-mounted main control module records all CAN data and stores it as an operation data record binary file;

[0140] Data parsing: The on-board display parses the operating data file according to the file format;

[0141] Operation playback: playback the vehicle operation in time sequence;

[0142] Operational analysis: Analyze whether the operation complies with the formal operating procedures, and mark the records that do not comply with the procedures.

[0143] As attached Fig.13As shown, the vehicle control network system collects electrical system data (such as buttons, switches, accelerators, etc.) and sends the data to the bus network through the bus. The main control module collects the vehicle control network vehicle bus data in real time, parses the vehicle bus data according to the vehicle model protocol, and determines whether the data is operation data including switches, keyboards or user input. If so, it parses the user operation and stores it in the operation record file. The operation record file is stored by date. The intelligent diagnostic display obtains the operation file list, copies the file to the intelligent diagnostic display, parses the operation data file according to the vehicle model protocol, displays the operation record table including time and operation content, and analyzes whether the operation complies with the formal process according to the operation sequence. If not, the record that does not comply with the process will be marked.

[0144] Operation data analysis is used to analyze operation data, provide reference for operation quality judgment, analyze operation data, compare in curve form, and display track raising, track shifting, and tamping operation conditions. It mainly realizes the following functions:

[0145] Export analysis reports: operation time, operation distance, number of operation picks, maximum difference of trend curve, minimum difference of trend curve, average difference of trend curve.

[0146] Operation data collection: The vehicle control network system collects operation data, such as front, middle and rear swing values, computer theoretical values, etc., and sends CAN data to the vehicle control network;

[0147] Data recording and file storage: The main control module records the operation CAN data and stores it as a binary file of operation data record;

[0148] Data analysis: The intelligent diagnostic display analyzes the job data file according to the file format;

[0149] Job data playback: playback the job data operations in time sequence to generate curves;

[0150] Operation data analysis: comparative analysis of the trend curves of rear swing and front swing values ​​at the same operation point (mileage position); comparative analysis of the trend curves of rear swing and rear theoretical superelevation; comparative analysis of the trend curves of recorded positron sensors and recorded theoretical positrons; comparative analysis of the trend curves of set depth and actual tamping depth.

[0151] As attached Fig.15As shown, the vehicle control network system collects electrical system data and sends the data to the bus network through a bus (such as CAN). The main control module collects the vehicle control network vehicle bus data in real time, parses the vehicle bus data according to the vehicle model protocol, and determines whether the data is related to the operation quality. If so, the operation data is stored as an operation record file by date. The intelligent diagnostic display obtains the list of operation record files and displays the operation quality data table. The operation quality data is shown in Table 2 below. The file is copied to the intelligent diagnostic display. After parsing the operation data file according to the vehicle model protocol, the operation data list and curve are displayed, the comparison effect of the data before and after the operation is analyzed, and the operation report is exported. Analyze according to the data (comparison of the trend curves of the rear swing and front swing values ​​at the same operation point (mileage position); comparison and analysis of the trend curves of the rear swing and the rear theoretical superelevation; comparison and analysis of the trend curves of the recorded positive sine sensor and the recorded theoretical positive sine; comparison and analysis of the trend curves of the set depth and the actual tamping depth).

[0152] Serial number Data content Serial number Data content 1 time 29 Electronic pendulum 2 Mileage location 30 Rear electronic pendulum 3 Working position vector (TGCS) 31 DGS Pendulum 4 Working position versine (manual) 32 Front super height difference 5 Front end offset (TGCS) 33 Rear superelevation 6 Front end offset (manual) 34 Super height difference of working point 7 Front end offset (laser) 35 Insertion depth setting 8 Front end offset (total) 36 Clamping time depth setting 9 Track Shifting Sensor 37 Left tamping depth setting 10 Track compensation 38 Right tamping depth setting 11 Zeroing 39 Tamping count 12 Over-track amount 40 Ramming speed setting 13 Total track volume 41 Satellite car speed setting 14 Recording versine sensor 42 Main vehicle operating speed 15 Basic start amount 43 Job drive delay 16 Basic laser start 44 Car forward gain 17 Given track start reduction (TGCS) 45 Centering sensor 18 Working position super high (manual) 46 Displacement Sensors 19 Working position super height (TGCS) 47 Sinking amount given 20 Front super height (TGCS) 48 Stable car vibration frequency 21 Left leveling sensor 49 Operation Mode 22 Right level sensor 50 Settlement compensation input 23 Left total starting amount 51 Settlement compensation 24 Total right starting volume 52 Front electronic pendulum 25 Zeroing of the track quantity from the left 53 Left rear error compensation 26 Right track zeroing 54 Right rear error compensation 27 Track compensation from left 55 28 Right track compensation 56

[0153] Table 2 List of key simulation quantities for the operation

[0154] Equipment history management realizes the maintenance and management of the history table of key vehicle equipment, and realizes the addition, deletion, modification, query and statistics of data tables. It mainly realizes the following functions:

[0155] Vehicle equipment database management: Establish a vehicle database in the main control module to manage the operation and maintenance data of vehicle equipment;

[0156] Add vehicle-mounted equipment information: Add vehicle-mounted equipment information by importing or entering;

[0157] Vehicle equipment information modification: query vehicle equipment information and modify entry information;

[0158] Deletion of vehicle-mounted equipment information: query vehicle-mounted equipment information and delete entry information;

[0159] Vehicle-mounted equipment information query: query vehicle-mounted equipment information by device and export reports as needed.

[0160] As attached Fig.17 As shown, the main control module uses MySQL to establish a vehicle equipment history database, receives real-time operation commands from the intelligent diagnostic display to add, delete, modify, and query the vehicle equipment history table shown in Table 3 below, operates the vehicle equipment history table database, and returns the data table after the operation to the intelligent diagnostic display. The intelligent diagnostic display provides a human-computer interaction interface, displays the operations of adding, deleting, modifying, and querying the vehicle equipment history table, and returns the requested data and execution results, and exports the vehicle equipment history table.

[0161] Serial number Column Name type illustrate Remark 1 Unique ID Integer Database ID, auto-increment 2 Equipment No. Integer Record device number 3 Device Name String Record device name 4 Equipment activation date Boolean Record the equipment startup date 5 Equipment maintenance date date Record the date of the last maintenance of the equipment 6 Is the device enabled? Boolean Enable / Disable 7 Responsible Person String Recording Equipment Responsible Person

[0162] Table 3 Vehicle Equipment History

[0163] Equipment maintenance management realizes the maintenance management of the maintenance forms of key on-board equipment, mainly realizing the following data table addition, deletion, modification, query and statistics functions.

[0164] On-board maintenance database management: Establish an on-board database in the main control module to manage on-board maintenance information and operation data;

[0165] Add vehicle maintenance information: Add vehicle maintenance information by importing or entering;

[0166] Vehicle maintenance information modification: query vehicle maintenance information and modify entry information;

[0167] Deletion of vehicle maintenance information: query vehicle maintenance information and delete entry information;

[0168] Vehicle maintenance information query: query vehicle maintenance information by equipment and export reports as needed;

[0169] Maintenance reminder: Provide reminders for maintenance dates that require regular maintenance.

[0170] As attached Fig.19 As shown in the figure, the main control module uses MySQL to establish a vehicle-mounted key equipment maintenance history database, as shown in Table 4 below, and receives real-time operation commands from the intelligent diagnostic display to add, delete, modify, and query the vehicle-mounted key equipment maintenance, operate the vehicle-mounted key equipment maintenance history table database, and return the data table of the operation completed to the intelligent diagnostic display. The intelligent diagnostic display provides a human-computer interaction interface to display the operations of adding, deleting, modifying, and querying the vehicle-mounted key equipment maintenance history table, and judge whether the next maintenance date is lower than the set time. If yes, it prompts maintenance and exports the vehicle-mounted key equipment maintenance history table. If not, it directly exports the vehicle-mounted key equipment maintenance history table.

[0171] Serial number Column Name type Remark 1 Unique ID Integer 2 Equipment No. String 3 Maintenance type String Daily maintenance, repair and maintenance 4 Spare parts consumption String 5 This maintenance date date 6 Next maintenance date date 7 Remind maintenance? Boolean 8 picture String 9 Responsible Person String

[0172] Table 4 Maintenance history of key vehicle equipment

[0173] Equipment fault management realizes the maintenance and management of the vehicle fault handling history table, realizes the addition, deletion, modification and query of data tables, and is used for the following functions such as on-site fault recording and fault collection.

[0174] Vehicle fault database management: Establish a vehicle database in the main control module to manage vehicle fault history and operation and maintenance data;

[0175] Add vehicle fault information: Add vehicle fault information by importing or entering;

[0176] Vehicle fault information modification: query vehicle fault information and modify entry information;

[0177] Vehicle fault information deletion: query vehicle fault information and delete entry information;

[0178] Vehicle fault information query: fault statistics by time period and fault statistics by fault category; fault reports are generated based on the statistical results.

[0179] As attached Fig.21 As shown in the figure, the main control module uses MySQL to establish a vehicle equipment fault record database, as shown in Table 5 below, and receives real-time operation commands from the intelligent diagnostic display to add, delete, modify, and query the vehicle equipment fault record table, operate the vehicle equipment fault record table database, and return the data table after the operation to the intelligent diagnostic display. The intelligent diagnostic display provides a human-computer interaction interface to display the operations of adding, deleting, modifying, and querying the vehicle equipment fault record table, and export the vehicle equipment fault record table.

[0180]

[0181]

[0182] Table 5 Vehicle equipment failure history

[0183] Equipment operation record management realizes the maintenance and management of the vehicle operation record form, and realizes the following data table addition, deletion, modification, query and statistics functions.

[0184] Operation data collection: The vehicle control network system collects operation data, such as mileage, operation mileage, operation time, tamping times, etc., and sends CAN data to the vehicle control network;

[0185] On-board operation data calculation: through the network delay relay, the network power is turned off, the difference between the operating mileage and the driving mileage and the last time is determined, and any changes are automatically recorded;

[0186] On-board operation database management: Establish an on-board database in the main control module to manage the operation and maintenance data of on-board equipment;

[0187] Vehicle operation information query and statistics: operation record statistics by time, and export reports as needed;

[0188] Vehicle operation information query and correction: Manual correction of automatically counted data with errors.

[0189] As attached Fig.23As shown, the vehicle control network system collects electrical system data and sends the data to the bus network through the bus. The main control module uses mysql to establish the (vehicle) operation record table database shown in Table 6 below, collects the vehicle control network bus data in real time, and parses the vehicle bus data according to the vehicle model protocol. When it is determined that the vehicle network power is powered on, the key cumulative quantities including mileage, time, and tamping times are counted until the network power off signal is detected, and the operation record is stored in the database. The intelligent diagnostic display provides a human-computer interaction interface for vehicle operation record database query operations, and returns the vehicle operation record list for display.

[0190] Serial number Column Name type Remark 1 Unique ID Integer 2 Recording time date 3 Driving mileage Integer 4 Operation mileage Integer 5 Tamping times Integer 6 Engine running time Integer 7 Responsible Person String

[0191] Table 6 Vehicle operation record

[0192] Example 3

[0193] In the on-board intelligent diagnosis and operation and maintenance method for tamping vehicles described in this embodiment, the main control module collects and records bus data and saves it as a file to realize logical functions including active diagnosis, logical diagnosis, expert diagnosis, operation data record analysis, and operation data record analysis; at the same time, it stores and manages data operation and maintenance information including basic vehicle information, equipment information, maintenance information, fault records, and operation records. The mobile routing module is connected to the main control module, and the network access to the on-board equipment is realized through the on-board wireless networking. When the on-board public network opens access rights, the main control module and the intelligent diagnosis display establish a connection with the remote diagnosis system through the mobile routing module to realize on-board real-time remote monitoring diagnosis and data synchronization. The intelligent diagnosis display or mobile tablet realizes Ethernet wired or wireless connection with the main control module through the mobile routing module, receives the intelligent diagnosis data sent by the main control module, and realizes active diagnosis, logical diagnosis, expert diagnosis, operation data record analysis, and operation data record analysis human-computer interaction. The intelligent diagnosis display or mobile tablet accesses the on-board database of the main control module to realize human-computer interaction in operation and maintenance management. The client interactive software runs in the smart diagnostic display or mobile tablet, which accesses the main control module through the wireless LAN to achieve human-machine interface access. When the smart diagnostic display or mobile tablet has no access rights to the vehicle public network, it can upload offline collected data files to the remote diagnostic system.

[0194] As attached Figure 3 As shown, an embodiment of an on-board intelligent diagnosis and maintenance method for a tamping vehicle based on the system described in Example 2 includes an active diagnosis process S1), which specifically includes the following steps:

[0195] S11) The vehicle control network system collects key switches and operating actions, and determines whether active diagnosis is triggered. According to the control logic, it determines whether the systems including high-speed running, hydraulic system, operation running, tamping system, tamping posture, leveling system, track shifting system and automatic centering are working normally;

[0196] S12) If yes, it is determined whether the trigger control logic can output normally. If yes, the trigger program is operated to enter the diagnosis process. The diagnosis process determines whether the logic output is satisfied according to the control logic, and searches the signal state required to satisfy the logic in the logic formula. If it is inconsistent with the current signal state, the alarm bit is filled in the sent communication protocol;

[0197] S13) The main control module collects the vehicle control network bus data in real time, analyzes the diagnostic alarm position according to the vehicle model protocol, and if the alarm position is set, analyzes the alarm position information, generates alarm information according to the protocol, stores it in the vehicle database, and sends it to the intelligent diagnostic display via Ethernet;

[0198] S14) The intelligent diagnostic display reads and displays the alarm information, searches the fault tree according to the fault code to obtain the fault cause and analysis method, and displays the processing method.

[0199] As attached Figure 4 As shown, the on-board intelligent diagnosis and operation and maintenance method of the tamping vehicle also includes a logical diagnosis process S2), which includes the following steps:

[0200] S21) The vehicle-mounted control network system collects electrical system data and sends the data to the bus network through the bus;

[0201] S22) The main control module collects the vehicle control network bus data in real time, parses the bus communication data according to the protocol, obtains the vehicle real-time data, and sends the vehicle real-time data to the intelligent diagnosis display via Ethernet;

[0202] S23) the intelligent diagnostic display reads the vehicle real-time data, and forms a vehicle real-time signal table according to the vehicle model data signal table; the intelligent diagnostic display reads the logic configuration file, draws the logic ladder diagram, queries the real-time signal table according to the signal name, and refreshes the ladder diagram signal status display;

[0203] S24) When the user clicks the query logic unsatisfied signal, the fault handling vehicle database is queried to obtain the handling measures and location pictures for display.

[0204] As attached Figure 7 As shown, the on-board intelligent diagnosis and operation and maintenance method of the tamping vehicle also includes an expert diagnosis process S3), which includes the following steps:

[0205] S31) The vehicle-mounted control network system collects electrical system data and sends the data to the bus network through the bus;

[0206] S32) The main control module collects the vehicle control network bus data in real time, analyzes the vehicle bus data according to the vehicle model protocol, cyclically stores the vehicle data of the set time, and determines whether there are abnormalities in the tamping, track starting and running systems; if there are abnormalities, the analog waveform characteristics are analyzed, the fault tree is matched according to the characteristics, the cause of the fault is analyzed according to the probability of occurrence, and stored in the vehicle database, and the fault code is sent to the intelligent diagnosis display via Ethernet;

[0207] S33) the intelligent diagnostic display analyzes the fault code, searches the fault tree according to the fault code, and obtains the cause of the fault and the treatment measures;

[0208] S34) The user performs processing according to the given processing measures. After the fault processing is completed, the user fills in the fault processing instructions through the intelligent diagnosis display, recalculates the occurrence probability of each abnormal cause of the fault tree according to the processing instructions, and updates the fault tree.

[0209] Step S32) further comprises:

[0210] When the actual insertion depth of the tamping head differs from the set depth by more than a set threshold value in several consecutive tamping operation cycles, it is determined that the tamping head insertion is abnormal.

[0211] Step S32) further comprises:

[0212] When the shifting cannot be performed in place within a number of consecutive shifting action execution cycles, and the shifting amount does not reach the set minimum threshold, it is judged as under-shifting abnormality. When the shifting amount exceeds the set maximum threshold, it is judged as over-shifting abnormality.

[0213] Step S32) further comprises:

[0214] When the track lifting cannot be completed in place within several consecutive pickaxe lifting action execution cycles, and the track lifting amount does not reach the set minimum threshold, it is judged as insufficient track lifting abnormality. When the track lifting amount exceeds the set maximum threshold, it is judged as excessive track lifting abnormality.

[0215] As attached Fig.12 As shown, the on-board intelligent diagnosis and operation and maintenance method of the tamping vehicle also includes a data analysis process S4), which includes the following steps:

[0216] S41) The vehicle-mounted control network system collects electrical system data and sends the data to the bus network through the bus;

[0217] S42) The main control module collects the vehicle bus data of the vehicle control network in real time, parses the vehicle bus data according to the vehicle model protocol, stores the vehicle data as a binary file, and divides it according to the set file size;

[0218] S43) The intelligent diagnostic display obtains a list of vehicle model storage files, copies the files to the intelligent diagnostic display, parses the files according to the vehicle model protocol, and stores them in the vehicle database, queries the data columns that need to be analyzed, and generates a data curve chart or data list.

[0219] As attached Fig.14 As shown, the on-board intelligent diagnosis and operation and maintenance method of the tamping vehicle also includes an operation analysis process S5), which includes the following steps:

[0220] S51) The vehicle-mounted control network system collects electrical system data and sends the data to the bus network through the bus;

[0221] S52) The main control module collects the vehicle bus data of the vehicle control network in real time, analyzes the vehicle bus data according to the vehicle model protocol, and determines whether the data is operation data including switch, keyboard or user input. If so, the user operation is analyzed and stored in the operation record file, and the operation record file is stored by date;

[0222] S53) The intelligent diagnostic display obtains the operation file list, copies the file to the intelligent diagnostic display, parses the operation data file according to the vehicle model protocol, displays the operation record table including time and operation content, and analyzes whether the operation complies with the regular process according to the operation sequence. If not, the record that does not comply with the process will be marked.

[0223] As attached Fig.16 As shown, the on-board intelligent diagnosis and operation and maintenance method of the tamping vehicle also includes an operation data analysis process S6), which includes the following steps:

[0224] S61) The vehicle-mounted control network system collects electrical system data and sends the data to the bus network through the bus;

[0225] S62) The main control module collects the vehicle bus data of the vehicle control network in real time, parses the vehicle bus data according to the vehicle model protocol, determines whether the data is operation quality related data, and if so, stores the operation data as an operation record file by date;

[0226] S63) The intelligent diagnostic display obtains the list of operation record files, copies the files to the intelligent diagnostic display, parses the operation data files according to the vehicle model protocol, displays the operation data list and curve, analyzes the comparison effect of data before and after the operation, and exports the operation report.

[0227] As attached Fig.18 As shown, the on-board intelligent diagnosis and operation and maintenance method of the tamping vehicle also includes an equipment history management process S7), which includes the following steps:

[0228] S71) The main control module establishes a vehicle-mounted device history database, receives in real time operation commands of the intelligent diagnostic display to add, delete, modify, and query the vehicle-mounted device history table, operates the vehicle-mounted device history table database, and returns the data table after the operation to the intelligent diagnostic display;

[0229] S72) The intelligent diagnostic display provides a human-computer interaction interface, displays operations for adding, deleting, modifying, and querying the vehicle-mounted device history table, and exports the vehicle-mounted device history table.

[0230] As attached Fig. 20 As shown, the on-board intelligent diagnosis and operation and maintenance method of the tamping vehicle also includes an equipment maintenance management process S8), which includes the following steps:

[0231] S81) The main control module establishes a vehicle-mounted key equipment maintenance history database, and receives real-time operation commands from the intelligent diagnostic display to add, delete, modify, and query the vehicle-mounted key equipment maintenance, operates the vehicle-mounted key equipment maintenance history table database, and returns the data table of the completed operation to the intelligent diagnostic display;

[0232] S82) The intelligent diagnostic display provides a human-computer interaction interface, displays the operations of adding, deleting, modifying, and querying the maintenance history of the vehicle-mounted key equipment, and determines whether the date of the next maintenance is lower than the set time. If so, it prompts maintenance and exports the maintenance history of the vehicle-mounted key equipment. If not, it directly exports the maintenance history of the vehicle-mounted key equipment.

[0233] As attached Fig. 22 As shown, the on-board intelligent diagnosis and operation and maintenance method of the tamping vehicle also includes an equipment fault management process S9), which includes the following steps:

[0234] S91) The main control module establishes a vehicle-mounted equipment fault history database, receives in real time operation commands of the intelligent diagnostic display to add, delete, modify, and query the vehicle-mounted equipment fault history table, operates the vehicle-mounted equipment fault history table database, and returns the data table after the operation to the intelligent diagnostic display;

[0235] S92) The intelligent diagnostic display provides a human-computer interaction interface, displays operations for adding, deleting, modifying, and querying the vehicle-mounted equipment fault history table, and exports the vehicle-mounted equipment fault history table.

[0236] As attached Fig.24 As shown, the on-board intelligent diagnosis and operation and maintenance method of the tamping vehicle also includes an equipment operation record management process S10), which includes the following steps:

[0237] S101) The vehicle-mounted control network system collects electrical system data and sends the data to the bus network through the bus;

[0238] S102) The main control module establishes an operation record table database, collects the vehicle control network bus data in real time, and parses the vehicle bus data according to the vehicle model protocol; when it is determined that the vehicle network power is powered on, it starts counting key accumulated quantities including mileage, time, and tamping times, until the network power off signal is detected, and stores the operation record in the database;

[0239] S103) The intelligent diagnostic display provides a human-computer interaction interface for vehicle operation record database query operations, and returns a vehicle operation record list for display.

[0240] 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 can 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 can be directly connected to the other element or indirectly connected to the other element.

[0241] 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" and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0242] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0243] 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 substantive 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 effects and purposes that can be achieved by this application.

[0244] By implementing the technical solution of the on-board intelligent diagnosis and operation and maintenance device and system for tamping vehicles described in the specific embodiments of the present application, the following technical effects can be achieved:

[0245] (1) The on-board intelligent diagnosis and operation and maintenance device and system for tamping vehicles described in the specific embodiments of the present application have 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 improve the level and efficiency of on-site and vehicle operation and maintenance management;

[0246] (2) The on-board intelligent diagnosis and operation and maintenance device and system of the tamping vehicle described in the specific embodiment of the present application can quickly locate the logic problem through the tamping vehicle's "active diagnosis" + "logic diagnosis", and provide treatment measures and location screenshots, which can quickly locate and solve the electrical system logic fault;

[0247] (3) The on-board intelligent diagnosis and operation and maintenance device and system for tamping vehicles described in the specific embodiments of the present application can analyze and solve difficult problems that cannot be covered by active diagnosis and logical diagnosis through real-time monitoring of key analog quantities and sensor signals and long-term trend analysis of tamping vehicles through "expert diagnosis" positioning, combined with on-board control logic;

[0248] (4) The on-board intelligent diagnosis and operation and maintenance device and system for tamping vehicles described in the specific embodiments of the present application can quickly locate abnormalities in on-board control data and operation through the "on-board data analysis" and "operation data analysis" of the tamping vehicle, assist in analyzing difficult faults, and provide expert analysis results to help non-professionals deal with difficult faults;

[0249] (5) The on-board intelligent diagnosis and operation and maintenance device and system for tamping vehicles described in the specific embodiments of the present application realizes daily table management such as vehicle maintenance and fault history on the vehicle side, simplifying the on-site operation and maintenance management process; automatically counts operation and driving information through the on-board recording module, and inputs on-board equipment, maintenance, fault records and other content through a smart display or tablet, thereby realizing electronic and intelligent management of operation and maintenance, which can greatly improve the level of on-board operation and maintenance.

[0250] 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.

[0251] The above 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 of 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 according to the technical essence of the present application, which does not depart 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. An on-board intelligent diagnosis and operation and maintenance device for a tamping vehicle, characterized in that: include: The main control module collects and records bus data and saves it as a file, realizing logical functions including active diagnosis, logical diagnosis, expert diagnosis, operation data record analysis, and job data record analysis. At the same time, it is equipped with an on-board database to store and manage data operation and maintenance information including basic vehicle information, equipment information, maintenance information, fault records, and operation records. The mobile routing module is connected to the main control module and realizes network access to the vehicle-mounted equipment through the vehicle-mounted wireless network; when the vehicle-mounted public network opens access rights, the main control module and the intelligent diagnosis display establish a connection with the remote diagnosis system through the mobile routing module to realize real-time remote monitoring diagnosis and data synchronization on the vehicle; An intelligent diagnostic display or mobile tablet realizes Ethernet wired or wireless connection with the main control module through the mobile routing module, and is used to receive intelligent diagnostic data sent by the main control module, and realize active diagnosis, logical diagnosis, expert diagnosis, operation data record analysis, and operation data record analysis human-computer interaction; Used to access the vehicle-mounted database of the main control module to realize human-computer interaction in operation and maintenance management; the client interaction software runs in the smart diagnostic display or mobile tablet, which accesses the main control module through the wireless LAN to realize human-computer interface access; when the smart diagnostic display or mobile tablet has no access rights to the vehicle-mounted public network, it can realize offline collection of data files and upload them to the remote diagnosis system.

2. An on-board intelligent diagnosis and maintenance system for a tamping vehicle, characterized in that: include: An on-board network control system, a remote diagnosis system, and a device as described in claim 1; the on-board network control system is connected to a main control module of an on-board intelligent diagnosis and operation and maintenance device, and the main control module and the intelligent diagnosis display establish a wireless connection with the remote diagnosis system through a mobile routing module.

3. The on-board intelligent diagnosis and operation and maintenance system for tamping vehicles according to claim 2 is characterized by: The vehicle-mounted control network system collects key switches and operating actions, and determines whether to trigger active diagnosis. According to the control logic, it determines whether the systems including high-speed running, hydraulic system, operation running, tamping system, tamping posture, leveling system, track shifting system and automatic centering are working normally; if so, it determines whether the trigger control logic can output normally. If so, the operation triggers the program to enter the diagnosis process. The diagnosis process determines whether the logic output is satisfied according to the control logic, and searches the signal state required to satisfy the logic in the logic formula; If it is inconsistent with the current signal status, the alarm bit is filled in the sent communication protocol; the main control module collects the vehicle control network bus data in real time, parses the diagnosis alarm bit according to the vehicle model protocol, and if the alarm bit is set, the alarm bit information is parsed, and the alarm information is generated according to the protocol, stored in the vehicle database, and sent to the intelligent diagnostic display via Ethernet; the intelligent diagnostic display reads and displays the alarm information, queries the fault tree according to the fault code to obtain the cause of the fault and the analysis method, and displays the processing method.

4. The on-board intelligent diagnosis and operation and maintenance system for tamping vehicles according to claim 3 is characterized by: The vehicle control network system collects electrical system data and sends the data to the bus network through the bus; the main control module collects vehicle control network bus data in real time, analyzes the bus communication data according to the protocol, obtains vehicle real-time data, and sends the vehicle real-time data to the intelligent diagnosis display through Ethernet; The intelligent diagnostic display reads the real-time vehicle data and forms a real-time vehicle signal table according to the vehicle model data signal table; the intelligent diagnostic display reads the logic configuration file, draws a logic ladder diagram, queries the real-time signal table according to the signal name, and refreshes the ladder diagram signal status display; when the user clicks on the query logic not satisfying the signal, the fault processing vehicle database is queried, and the processing measures and location pictures are obtained for display.

5. The on-board intelligent diagnosis and operation and maintenance system for a tamping vehicle according to claim 2, 3 or 4, characterized in that: The vehicle control network system collects electrical system data and sends the data to the bus network through the bus; the main control module collects vehicle control network bus data in real time, analyzes the vehicle bus data according to the vehicle model protocol, cyclically stores the vehicle data of the set time, determines whether there are abnormalities in the tamping, track starting and running systems, and if there are abnormalities, analyzes the analog waveform characteristics, matches the fault tree according to the characteristics, analyzes the cause of the fault according to the probability of occurrence, stores it in the vehicle database, and sends the fault code to the intelligent diagnosis display through Ethernet; The intelligent diagnostic display parses the fault code, queries the fault tree according to the fault code, and obtains the cause of the fault and the treatment measures; the user handles the fault according to the given treatment measures, fills in the fault treatment instructions through the intelligent diagnostic display after the fault treatment is completed, recalculates the occurrence probability of each abnormal cause of the fault tree according to the treatment instructions, and updates the fault tree.

6. The on-board intelligent diagnosis and operation and maintenance system for tamping vehicles according to claim 5 is characterized by: When the actual insertion depth of the tamping head differs from the set depth by more than a set threshold value in several consecutive tamping operation cycles, it is determined that the tamping head insertion is abnormal.

7. The on-board intelligent diagnosis and operation and maintenance system for tamping vehicles according to claim 5 is characterized by: When the shifting cannot be completed in place within several consecutive shifting action execution cycles and the shifting amount does not reach the set minimum threshold, it is judged as under-shifting abnormality; when the shifting amount exceeds the set maximum threshold, it is judged as over-shifting abnormality.

8. The on-board intelligent diagnosis and operation and maintenance system for tamping vehicles according to claim 5 is characterized by: When the track lifting cannot be completed in place within several consecutive pickaxe lifting action execution cycles and the track lifting amount does not reach the set minimum threshold, it is judged as insufficient track lifting abnormality; when the track lifting amount exceeds the set maximum threshold, it is judged as excessive track lifting abnormality.

9. The on-board intelligent diagnosis and operation and maintenance system for a tamping vehicle according to claim 2, 3, 4, 6, 7 or 8, characterized in that: The vehicle control network system collects electrical system data and sends the data to the bus network through the bus; the main control module collects vehicle bus data of the vehicle control network in real time, parses the vehicle bus data according to the vehicle model protocol, stores the vehicle data as a binary file, and divides it according to the set file size; The intelligent diagnostic display obtains a vehicle model storage file list, copies the file to the intelligent diagnostic display, parses the file according to the vehicle model protocol and stores it in the vehicle database, queries the data column that needs to be analyzed, and generates a data curve chart or a data list.

10. The on-board intelligent diagnosis and operation and maintenance system for tamping vehicles according to claim 9 is characterized in that: The vehicle-mounted control network system collects electrical system data and sends the data to the bus network through the bus; the main control module collects the vehicle-mounted control network vehicle bus data in real time, parses the vehicle bus data according to the vehicle model protocol, and determines whether the data is operation data including switches, keyboards or user inputs. If so, the user operation is parsed and stored in the operation record file, and the operation record file is stored by date; the intelligent diagnostic display obtains the operation file list, copies the file to the intelligent diagnostic display, parses the operation data file according to the vehicle model protocol, displays the operation record table including time and operation content, and analyzes whether the operation complies with the regular process according to the operation sequence. If not, the record that does not comply with the process will be marked.

11. The on-board intelligent diagnosis and operation and maintenance system for a tamping vehicle according to claim 2, 3, 4, 6, 7, 8 or 10, characterized in that: The vehicle control network system collects electrical system data and sends the data to the bus network through the bus; the main control module collects vehicle bus data of the vehicle control network in real time, parses the vehicle bus data according to the vehicle model protocol, determines whether the data is operation quality related data, and if so, stores the operation data as an operation record file by date; The intelligent diagnostic display obtains a list of operation record files, copies the files to the intelligent diagnostic display, parses the operation data files according to the vehicle model protocol, displays the operation data list and curves, analyzes the comparison effect of data before and after the operation, and exports the operation report.

12. The on-board intelligent diagnosis and operation and maintenance system for a tamping vehicle according to claim 11, characterized in that: The main control module establishes a vehicle-mounted equipment history database, receives in real time operation commands of the intelligent diagnostic display to add, delete, modify, and query the vehicle-mounted equipment history table, operates the vehicle-mounted equipment history table database, and returns the data table after the operation is completed to the intelligent diagnostic display; The intelligent diagnosis display provides a human-computer interaction interface, displays operations of adding, deleting, modifying, and querying the vehicle-mounted equipment resume table, and exports the vehicle-mounted equipment resume table.

13. The on-board intelligent diagnosis and operation and maintenance system for a tamping vehicle according to claim 2, 3, 4, 6, 7, 8, 10 or 12, characterized in that: The main control module establishes a vehicle-mounted key equipment maintenance history database, and receives real-time operation commands from the intelligent diagnostic display to add, delete, modify, and query the vehicle-mounted key equipment maintenance, operates the vehicle-mounted key equipment maintenance history table database, and returns the data table of the completed operation to the intelligent diagnostic display; The intelligent diagnostic display provides a human-computer interaction interface, displays the operations of adding, deleting, modifying and querying the maintenance history of vehicle-mounted key equipment, and determines whether the date of the next maintenance is lower than the set time. If so, it prompts maintenance and exports the maintenance history of vehicle-mounted key equipment. If not, it directly exports the maintenance history of vehicle-mounted key equipment.

14. The on-board intelligent diagnosis and operation and maintenance system for a tamping vehicle according to claim 13, characterized in that: The main control module establishes a vehicle-mounted equipment fault history database, receives real-time operation commands from the intelligent diagnostic display to add, delete, modify, and query the vehicle-mounted equipment fault history table, operates the vehicle-mounted equipment fault history table database, and returns the data table after the operation to the intelligent diagnostic display; The intelligent diagnosis display provides a human-computer interaction interface, displays operations of adding, deleting, modifying, and querying the vehicle-mounted equipment fault history table, and exports the vehicle-mounted equipment fault history table.

15. The on-board intelligent diagnosis and operation and maintenance system for a tamping vehicle according to claim 2, 3, 4, 6, 7, 8, 10, 12 or 14, characterized in that: The vehicle control network system collects electrical system data and sends the data to the bus network through the bus; the main control module establishes an operation record table database, collects vehicle control network bus data in real time, and parses the vehicle bus data according to the vehicle model protocol; When it is determined that the vehicle network power supply is powered on, key cumulative quantities including mileage, time, and tamping times are counted until the network power off signal is detected, and the operation record is stored in the database; the intelligent diagnostic display provides a human-computer interaction interface for vehicle operation record database query operations, and returns the vehicle operation record list for display.

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