WO2023125017A1 - Monitoring terminal for safety servicing of vehicle of power-concentrated motor train unit before driving - Google Patents

Abstract

A monitoring terminal for safety servicing of a vehicle of a power-concentrated motor train unit before driving. The terminal comprises a main control unit and a display screen. The main control unit comprises: a pre-trial preparation module, a cab occupancy selection test module, a motor train unit mode confirmation test module, a high-voltage trial test module, a locomotive cab device trial module, a brake trial test module, a cooperative vehicle department test module and an automatic neutral section passing trial test module; and the main control unit further comprises an automatic test module, a small item selection trial module, a device state module, a system setting module, an operation information module, a data processing module and a software version module. A monitoring terminal is placed on a cab console, so as to ensure the safety monitoring of a vehicle system before driving and to complete the servicing operation, such that the vehicle system operates safely and reliably, which meets an actual requirement of a user and obtains the affirmation of the user, and thus, good economic and social benefits are achieved.

Description

A monitoring terminal for the safety and maintenance of vehicles in concentrated power EMUs before driving

Cross References to Related Applications

The embodiment of the present disclosure is based on the Chinese patent application with the application number 202111627311.7, the application date is December 29, 2021, and the application name is "A Monitoring Terminal for Safety and Maintenance of Vehicles of Concentrated EMUs before Driving", and requires that the Chinese patent application The entire content of this Chinese patent application is hereby incorporated into this disclosure as a reference.

technical field

The present disclosure relates to but is not limited to the technical field of locomotive maintenance and maintenance, and in particular relates to a monitoring terminal for monitoring the safety and maintenance of a power-concentrated EMU vehicle before driving.

Background technique

In recent years, countries have vigorously developed high-speed railways, and have made great achievements in railway network construction, technological innovation, and industrialization capabilities. At the same time, the gradual popularization of Fuxing high-power trains and the universal application of Harmony trains forced the locomotive depot to improve the efficiency and quality of maintenance operations. In order to ensure the trouble-free operation of the EMU, every time the EMU runs for a period of time, it must go to the EMU station for inspection and maintenance, and provide all supplies and maintenance preparations for the train before it runs. The core goal of locomotive maintenance work is to improve the quality of locomotive maintenance operations, actively create conditions, gradually expand the scope of operations in maintenance workshops, and reduce the scope of locomotive crew participation in maintenance operations. With the continuous development of railway technology, higher requirements are put forward for the guarantee of locomotive transport capacity. At the same time, the in-depth application of the large-scale application mode of "long road and wheel ride system" has brought new challenges to the locomotive maintenance work, and the efficiency requirements for locomotive maintenance operations in the locomotive depot are getting higher and higher.

The maintenance process of the maintenance operation: before the passenger train runs or after it returns to the warehouse, the maintenance personnel of the locomotive depot need to inspect and repair it. The specific content includes supplying lubricating oil, sand, cooling water and cleaning the inside and outside of the train, as well as train inspection , repairs, functional experiments, etc. Wherein, the cleaning and maintenance work outside the train requires staff to carry out maintenance on the roof and the bottom of the car, because the electric train needs to be powered by electricity when it is running. Therefore, the residual voltage needs to be grounded after the train returns to the depot to ensure the personal safety of the workers. The maintenance of EMUs is divided into operational maintenance (first and second level maintenance) and advanced maintenance (third, fourth and fifth levels). As a place for first and second level repairs, maintenance and temporary repairs, the most important task of the EMU station is to ensure that EMU operating status, try to make the EMU out of the warehouse with zero failure. The EMU implements a planned preventive maintenance system, combining three methods of scheduled maintenance, condition-based maintenance and after-the-fact maintenance during the maintenance process. The first-level maintenance is mainly to fully restore the operation status of the EMU, check the overall appearance quality of the EMU, replace the main wear parts within limits, and reorganize the passenger transport spare parts and the internal and external environmental sanitation of the EMU to meet the daily operation requirements . The secondary maintenance is mainly to conduct condition inspection and performance test on the key systems and components of the EMU to ensure its good performance. The daily maintenance of EMUs adopts a combination of two-day primary inspection and secondary inspection of each type of EMU according to a certain period.

With the rapid development of the railway industry, more and more attention has been paid to a safe and comfortable operating environment. The maintenance operation of the locomotive depot is an hourly work system except for lightning, heavy rain, and snowstorms. The number of daily operations is as many as dozens of times. Hundreds of times. Fatigue and negligence are easy to occur during the operation process. At the same time, there are some incomprehensible connections and improper operations during the operation process, which can damage the equipment in the slightest and cause personal injury or death in severe cases. The completely manual and complicated operation process also causes high error rates. Therefore, it is of great practical significance to study the data collection and fault diagnosis of locomotive maintenance operations. According to the locomotive maintenance operation process, a locomotive maintenance management system integrating information collection, communication and data processing has been established, which has comprehensively improved the locomotive maintenance management system. Use safeguards.

At present, the vehicle system equipment is uneven. Some locomotive depots use modern maintenance workshops, and some locomotive depots use manual recording. The informatization construction and intelligent construction of the preparation work are gradually carried out. The existing problems are as follows: the maintenance mode of "special inspection and repair, and separation of land and vehicles" is generally adopted in the current section, which does not reflect the characteristics of "specialization, standardization, and standardization", which restricts the development of maintenance work, and it is urgent to standardize it. construction. In accordance with the requirements of "separation of rides and inspections, separation of repairs, integration of inspections, and integration of repairs" in the large-scale maintenance, the maintenance resources will be integrated, the maintenance structure will be improved, the maintenance standards will be unified, and the maintenance facilities will be improved.

From harmonious locomotives to 160 kilometers per hour power-concentrated EMUs, the technology of locomotive equipment has been greatly improved. However, the current locomotive maintenance operations basically remain at the stage of relying on manual and simple methods such as visual inspection, hand touch, and hammering. However, the technical complexity of the existing locomotives has led to many hidden dangers that cannot be discovered and dealt with in advance. Under the new situation, especially after the implementation of the repair system reform, it is very necessary and urgent to carry out research on the new maintenance and operation methods of power-concentrated EMUs. of. With the development of the times and the advancement of science and technology, the electrical and electrical equipment on the locomotive is becoming more and more complex, so it is becoming more and more difficult to maintain the locomotive and judge its faults. The diagnostic system is a large-scale computer program compiled by combining the knowledge, experience, reasoning, and skills of many experts in fault diagnosis. It can use the computer system to help people analyze and solve complex problems that can only be described in words and reasoning. Problems, expanding the original working scope of the computer system, so that the computer system has the thinking ability, can "dialogue" with the decision maker, and provide decision-making suggestions by applying reasoning.

After more than ten years of leapfrog development, rail transit equipment manufacturing has achieved breakthroughs in key technology research such as high-speed rail transit control and speed regulation systems, vehicle manufacturing, line construction and system integration, and has realized the engineering of related system complete sets of technologies application. At the same time, with the improvement of the integration and complexity of rail transit equipment, higher requirements are put forward for the system design technology of large and complex systems and equipment based on high reliability. The research on data collection and diagnostic model establishment of the 160 EMU maintenance operation can be carried out through operation detection, guarantee equipment, reduce maintenance manpower resource requirements, reduce maintenance support costs, and carry out informatization collection of key data in the maintenance operation process. Through the implementation of this project, the company can initially have the big data collection, processing and transmission capabilities for maintenance operations in the short term, as well as the capabilities of condition monitoring, fault diagnosis, fault prediction, and vehicle maintenance status evaluation. In the medium and long term, the company can deepen the intelligence of the railway industry System development work, so as to further optimize the reliability, usability, security and maintainability of the company's products.

Contents of the invention

The purpose of this disclosure is to provide a monitoring terminal for the safety and maintenance of EMU vehicles with centralized power before driving. Through the hand-held maintenance operation terminal, it is connected to the in-vehicle communication network and collects real-time data information of EMUs. The real-time monitoring and recording of the test and the whole-train joint inspection brake test realizes the full visibility of all aspects and technical parameters of the preparatory operation test, real-time controllable, intelligent judgment, and automatic generation of test reports, one file for one vehicle.

The present disclosure is achieved by adopting the following technical solutions:

The utility model relates to a monitoring terminal for monitoring the safety and maintenance of vehicles of concentrated power trains before driving, which includes a main control unit and a display screen.

The main control unit includes: a pre-test preparation module, a driver's cab occupancy selection test module, an EMU mode confirmation test module, a high-voltage test test module, a locomotive driver's cab equipment test module, a brake test test module, and a vehicle department test module , Automatically pass the phase test test module.

The pre-test preparation module is used to complete the following real-time monitoring and recording: power-on of the control circuit, confirmation of brake cabinet valves, and fault confirmation;

The driver's cab occupancy selection test module is used to complete the following real-time monitoring and recording: electric key, insulation monitoring, monitoring screen, 6A system working status confirmation, mechanical interlocking;

The EMU mode confirmation test module is used to complete the following real-time monitoring and recording: pantograph mode selection, other working mode settings;

The high-voltage test test module is used to complete the following real-time monitoring and recording: lifting bow and main break operation, auxiliary engine start confirmation, charger start confirmation, air compressor start confirmation, train power supply test, unattended vigilance test, redundant equipment test, locomotive start test, and safety circuit test; among them, the redundant equipment test includes emergency braking test and separate mitigation test, and the locomotive start test includes motor switching;

The locomotive driver's cab equipment test module is used to complete the following real-time monitoring and recording: wiper test, electric curtain test, air conditioner/electric heater/fan/electric glass test module, headlight/irradiation lamp/cab light/mechanical room Lamp test, sand test, bagpipe/electric whistle test;

The brake test module is used to complete the following real-time monitoring and recording: train emergency braking and power car independent relief test, leakage test, train air brake test and power car independent relief test, power car independent brake relief test , Train electro-pneumatic brake test; Among them, train emergency brake and power car separate relief test include emergency brake test and separate relief test, train air brake test and power car separate relief test include sensitivity brake test, continuous pressure holding Test, slow-release test for power train alone, sensitivity relief test, train electro-pneumatic brake test including stability test and stage relief test;

The described coordinating vehicle department test module is used to complete the following real-time monitoring and recording: the sliding door test, the sliding door test includes a door opening test and a door closing test;

The automatic overphase test module is used to complete the following real-time monitoring and recording: automatic overphase and loading performance tests.

The main control unit also includes: an automatic test module and a small item selection test module.

The automatic test module is used for the above-mentioned eight modules to perform automated tests in sequence;

The small item selection test module is used to select one of the above eight modules for automatic testing.

The main control unit also includes: a device status module, a system setting module, a job information module, a data processing module, and a software version module.

The equipment status module is used to reflect the network connection situation of the TCMS equipment of the concentrated power EMU;

The system setting module is used to complete the following operations: changing time and date, changing volume/brightness, user rights management;

The job information module is used to complete the following operations: job log, check the last job information, check the current job information, and generate a report after the test;

The data processing module is used to complete the following operations: ERM equipment historical data download, ERM equipment historical data decompression, TCU system management board historical data download, four-quadrant board historical data download, inverter board historical data download, U disk copy above historical data;

The software version module includes the software version numbers used to reflect the TCMS equipment and the maintenance operation terminal of the concentrated power EMU.

This disclosure reduces the labor intensity of personnel through the optimization and improvement of the maintenance plan of the EMU and the maintenance equipment, and strengthens the sharing of information related to equipment and the transmission of cross-sections, and can establish a power centralized EMU maintenance operation information sharing platform on the ground. , to transmit the preparation information, from the overall point of view, carry out named inspection, maintenance, quality unit control and responsibility tracking, and carry out a new research on preparation operations.

The preparation operation data collection and fault diagnosis system terminal described in this disclosure is mainly aimed at the preparation operation of 160 kilometers per hour power-concentrated EMU. It uses a portable hand-held maintenance operation terminal for test guidance, monitors real-time data, and automatically generates test reports. Car in first gear. It has the following beneficial effects:

1. Standardize the operation process and reduce the work intensity. The maintenance operation terminal establishes a human-computer interaction interface, prompts the current test progress and next test steps, and standardizes the driver's maintenance operation process; at the same time, it automatically monitors communication data and provides analysis reports to reduce the intensity of manual work.

2. Reduce the break rate. During the maintenance operation of the EMU, the hidden dangers of the locomotives can be found early through the maintenance operation model and dealt with in time to reduce the breakage rate of the locomotives.

3. Reduce maintenance cost. Under the new situation, the new EMU maintenance operation method can be carried out in conjunction with the reform of the repair schedule and system, reducing the maintenance cost of the EMU.

4. Automated process. After repeated communication with the operator and the operator, follow-up experiments, exploration and refinement of the maintenance operation process and the operator's operating habits, a reasonable order of maintenance operation items is proposed, and when each experimental item is judged correctly, it will automatically turn over The next experiment will be carried out on the next page, reducing the experiment time, reducing the driver's repeated confirmation clicks, friendly interaction and improving the sense of operation.

5. Small item test. This function is a supplementary function of the automated sequential process test. In the process of ensuring the successful completion of the test, if there are any unsatisfied test items in the automated test, the driver or operator can choose to skip it temporarily and carry out follow-up tests to ensure that most of the tests can be performed. After the test is passed, go to a certain test point in a certain test chapter through the small point test to avoid wasting time due to a small test point failing, thereby shortening the entire test time.

6. Shorten test time and improve efficiency.

(1) On the basis of multiple mode selections of automatic test, small point test and arbitrary chapter test, the random switching of brake test and door opening test is added, and the test process is interspersed. During the waiting process of the braking test, the door opening and closing test can be carried out synchronously. In order to reduce and shorten the test time, follow and conform to the habits of drivers and operators, improve operating efficiency, and humanized design functions.

(2) For the leak test in the transfer room operation, when the handheld terminal is connected to the vehicle interface and obtains the vehicle number and marshalling status of the current vehicle configuration, it will automatically search for the job report file when the current vehicle configuration is the same, in order to ensure timeliness (Tentatively within 2 hours at present), if the above conditions are met, and the leak test results in the operation report of the same configuration vehicle are passed, it can be used for reference in the experiment of this vehicle, omitting the operation items of the leak test and reducing time. Improve test efficiency. Under any other circumstances, in order to improve driving safety, it cannot be omitted.

7. Introduce recording, photographing and video recording methods to standardize and standardize the operation process. Due to whether the functions of the electric horn, bagpipe, lighting, wiper, and sanding are normal, the status cannot be obtained through network data, and the driver's senses can only be used to confirm whether the equipment is normal. By introducing sound recording, photographing, and video recording means to record sound signals and take photographs or videos of the actions of actuators, the test operation is further standardized, and the foundation for subsequent audio and video machine algorithm processing results is laid.

At present, the 160 kilometers per hour (km/h) power concentrated EMU is currently serving the depots of multiple road bureaus, and the passenger capacity is huge. The system is installed and placed on the console of the driver's cab to ensure the safety monitoring of the vehicle system before driving, complete the maintenance work, make it safe and reliable to operate, meet the actual needs of users, obtain the affirmation of users, and achieve good economic and economic results. social benefits.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that need to be used in the embodiments of the present disclosure will be described below.

The accompanying drawings here are incorporated into the description and constitute a part of the present description. These drawings show embodiments consistent with the present disclosure, and are used together with the description to explain the technical solution of the present disclosure.

FIG. 1 shows a schematic diagram of a monitoring terminal described in the present disclosure.

FIG. 2 shows a schematic diagram of a login interface of a monitoring terminal according to the present disclosure.

FIG. 3 shows a schematic diagram of a selection interface before a test after login of the monitoring terminal according to the present disclosure.

FIG. 4 shows a schematic diagram of the system main interface of the monitoring terminal of the present disclosure.

FIG. 5 shows a schematic diagram of a small item test interface of a monitoring terminal according to the present disclosure.

FIG. 6 shows a schematic diagram of an operation information interface of a monitoring terminal according to the present disclosure.

FIG. 7 shows a schematic diagram of a data processing interface of a monitoring terminal according to the present disclosure.

FIG. 8 shows a schematic diagram of a system setting interface of a monitoring terminal according to the present disclosure.

FIG. 9 shows a schematic diagram of setting time in the system setting interface of the monitoring terminal according to the present disclosure.

FIG. 10 shows a schematic diagram of setting brightness and volume in the system setting interface of the monitoring terminal according to the present disclosure.

FIG. 11 shows a schematic diagram of an interface of an equipment device of a monitoring terminal according to the present disclosure.

FIG. 12 shows a schematic diagram of a software version interface of the monitoring terminal in the present disclosure when there is no network.

Fig. 13 shows a schematic diagram of the TCMS network control system.

Detailed ways

In order to enable those skilled in the art to better understand the present disclosure, the following will clearly and completely describe the technical solutions in the embodiments of the present disclosure in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are Some embodiments of this application are not all embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present disclosure.

The terms "first", "second" and the like in the specification and claims of the present disclosure and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include for these processes, Other steps or elements inherent in a method, product, or apparatus.

The large-scale system architecture of the maintenance operation and fault diagnosis system planning of EMU vehicles is divided into three parts: handheld terminal, remote transmission, and ground service. The handheld terminal can improve functions: upload real-time data and maintenance operation data to the server; upload logs, reports, audio and video of the test process, pictures, etc. to the server. The server's task selection and maintenance job distribution are assigned to the handheld terminal to realize process statistics, result statistics, fault analysis, data mining and other functions.

The pre-driving safety and maintenance monitoring terminal of the concentrated power EMU described in the embodiments of the present disclosure is used for data collection and fault diagnosis of maintenance operations. After logging into the system, it can be divided into re-test and continuation of the last test; if you choose to re-test, a new test will be started and a new report file will be generated; if you choose to continue the last test, the system will follow the log file of the current vehicle The last test result of this car number is reflected, and the driver can continue to do the corresponding chapter test or small point test according to the last test result.

The terminal includes a main control unit and a display screen. As shown in Figure 1, the main control unit includes 15 working modules: the pre-test preparation module, the driver's cab occupancy selection test module, the EMU mode confirmation test module, the high-voltage test test module, Locomotive driver's cab equipment test module, brake test test module, vehicle department test module, automatic phase separation test test module; automatic test module, small point selection test module; equipment status module, system setting module, operation information module, Data processing module, software version module.

Among them, the first eight test modules are the real-time monitoring and recording of the functional test of the driver and the brake test of the whole train during the maintenance operation process, which realizes the full visibility of all aspects and technical parameters of the maintenance operation test, real-time controllability, and intelligent judgment.

Specifically: the pre-test preparation module is used to complete the following real-time monitoring and recording: control circuit power-on, brake cabinet valve confirmation, and fault confirmation. The driver's cab occupancy selection test module is used to complete the following real-time monitoring and recording: electric key, insulation monitoring, monitoring screen, 6A system working status confirmation, mechanical interlock. The EMU mode confirmation test module is used to complete the following real-time monitoring and recording: pantograph mode selection and other working mode settings. The high-voltage test test module is used to complete the following real-time monitoring and recording: lifting bow and main break operation, auxiliary machine start confirmation, charger start confirmation, air compressor start confirmation, train power supply test, unattended vigilance test, redundant equipment test, Locomotive start-up test, safety circuit test; among them, redundant equipment test includes emergency braking test and separate mitigation test, and locomotive start-up test includes motor switching. The locomotive driver's cab equipment test module is used to complete the following real-time monitoring and recording: wiper test, electric curtain test, air conditioner/electric heater/fan/electric glass test module, headlight/irradiation lamp/cab light/mechanical room light test , sanding test, bagpipe/electric flute test. The brake test module is used to complete the following real-time monitoring and recording: emergency braking of trains and individual relief tests of power vehicles, leakage tests, train air brake tests and individual relief tests of power vehicles, individual brake relief tests of power vehicles, train Electro-pneumatic braking test; among them, the emergency braking test of the train and the independent relief test of the power car include the emergency braking test and the independent relief test, the air brake test of the train and the independent relief test of the power car include the sensitivity braking test, the continuous pressure holding test, The independent slow-release test of the power train, the sensitivity relief test, and the electro-pneumatic brake test of the train include a stability test and a stage relief test. Cooperate with the vehicle department test module to complete the following real-time monitoring and recording: sliding door test, the sliding door test includes door opening test and door closing test. The automatic overphase test module is used to complete the following real-time monitoring and recording: automatic overphase and loading performance tests.

There are two modules in the middle: the automatic test module is used for the above-mentioned eight modules to perform automated testing in sequence; the small item selection test module is used for selecting one of the above-mentioned eight modules for automated testing. One is the automatic test function, which mainly implements automatic testing one by one, and if this function is selected again, the automatic testing will be stopped. One is the small item selection test function, which is to divide the small item test into 8 parts according to the 8 maintenance operation items, the first part is the content of the maintenance operation item 1 (pre-test preparation); the second part It is the content in the maintenance operation item 2 (selection test of cab occupancy); the third part is the content in the maintenance operation item 3 (EMU mode confirmation test); the fourth part is the maintenance operation item 4 (high voltage test test) ); the fifth part is the content in the maintenance operation item 5 (locomotive cab equipment test); the sixth part is the content in the maintenance operation item 6 (brake test test); the seventh part is the maintenance The content in the operation item 7 (cooperate with the vehicle department test); the eighth part is the content in the maintenance operation item 8 (automatic phase separation test test).

The following five functional modules: the equipment status module is used to reflect the network connection status of the Train Control and Management System (TCMS) equipment of the power centralized EMU; the system setting module is used to complete the following operations: change time and date, change Volume/brightness, user rights management; the job information module is used to complete the following operations: job log, check the last job information, check the current job information, and generate a report after the test; the data processing module is used to complete the following operations: enterprise resource management ( Enterprise Resource Management, ERM) equipment historical data download, ERM equipment historical data decompression, remote information control (Telematics Control Unit, TCU) system management board historical data download, four-quadrant board historical data download, inverter board historical data download, The above historical data is copied by U disk; the software version module is used to reflect the underlying version and software version.

The operation information module records the driver's test operation process and can automatically generate reports. This module includes four functions: operation log recording, viewing current and last operation information, and generating reports at the end of the test. The data processing module provides the function of downloading the recorded files of the TCMS network equipment and the function of copying out through the authorized U disk. The system settings module is used to modify the system time and change the volume and brightness of the device. The equipment status module reflects the network connection status of the TCMS equipment of the 160 power centralized EMU. The software version module reflects the software version numbers of the TCMS equipment and maintenance operation terminals of the 160 power concentrated EMUs.

The main functions of the hand-held maintenance operation operation terminal (referred to as the handheld terminal) described in the embodiments of the present disclosure are as follows: through real-time collection of EMU real-time data information, it can realize the function test of the maintenance driver and the joint inspection of the whole train during the maintenance operation. Real-time monitoring and recording of tests. The display function is clear and concise, with log records, reports, and result statistics generation and display. Process recording methods include reports, audio recordings, video recordings, and photographs. The recorded data can be copied through the special authorized U disk media of the Universal Serial Bus (USB) interface to ensure the authority and data security.

The handheld terminal is not a vehicle-mounted device component, it is only used for vehicle maintenance, it is placed on the driver's console or held by an operator, and it cannot be used as a vehicle-loading device for normal operation or work operation. In addition, when the handheld terminal is used, it can only monitor the vehicle network control system through the network interface, but cannot perform data interaction with it, and cannot affect the vehicle network. The handheld terminal should meet the security requirements of industrial equipment. At the same time, as a rail transit maintenance operation monitoring and fault diagnosis terminal data interaction interface, it should have a security level, and the authority can manage and control data downloads according to different levels. The portable handheld terminal is used in the vehicle maintenance operation of the locomotive depot. The terminal is connected to the in-vehicle communication network, which can collect real-time data information of the EMU, and provide operation guidance for the performance test of the maintenance driver and the brake test of the whole train during the maintenance operation. Real-time monitoring and recording of vehicle data, realizing the full visibility of all aspects and technical parameters of the maintenance test, real-time controllability, intelligent judgment, and automatic generation of test reports. From a global perspective, the equipment can perform named inspections, overhauls, quality unit control and responsibility tracking, and carry out new research on maintenance operations. At the same time, the use of this equipment can establish a power centralized EMU maintenance operation information sharing platform with the ground, interact with maintenance information, realize fault diagnosis, and give instructions to operators.

During specific implementation, the specific operations of the handheld terminal are as follows:

The login interface is shown in Figure 2. Enter the user name and password (due to the limited space for the soft keyboard due to the size of the page, only the number keys are placed in consideration of the button requirements for the driver’s large operation requirements) to log in to the system.

After entering the system, if you select the restart button, a new experiment will be started and a new report file will be generated. If you choose to continue the last test button, the last test result of this vehicle number will be reflected according to the log file of the current vehicle number. According to the last test result, the driver can continue to do the test of the corresponding chapter or small point, the interface is shown in Figure 3.

As shown in Figure 4, the main interface design consists of the upper status bar, the lower system function bar, and the middle maintenance operation item buttons. The upper status bar is composed of vehicle number, driver ID, current test items, current test details, date, and time, and displays the corresponding test information. The lower system bar is composed of "Logout", "Automatic Test", "Job Information", "Data Processing", "System Settings", "Equipment Status", and "Small Item Selection Test" button functions, providing system functions.

During the item test, the design adds a page-turning and exit test button, click the "logout" button to return to the login page; click the "small item selection test" button to display the chapter small item selection interface, as shown in Figure 5 Display, the button color in the home page chapter selection and small item selection interface, the test items that have not been done are displayed in gray, the test items that have been passed can be displayed in green, and the test items that have been failed can be displayed in red.

As shown in Figure 5, click the "Automatic Test" button, and the button will turn yellow, indicating that the automatic test function is started. When the button is pressed, the automated test is performed one by one, and the automated test is stopped when the button is clicked again.

Click the "Job Information" button to view the current test results. The interface is shown in Figure 6.

On the interface shown in Figure 7, click the "Data Processing" button to enter the vehicle data download interface.

On the interface shown in Figure 8, 9, 10, click the "System Settings" button to set the time, date, volume, brightness and other information.

On the interface shown in Figure 11, click the "Device Status" button to display the running status of the connected device.

As shown in Figure 12, the software version reflects the software version numbers of the TCMS equipment and maintenance operation terminals of the 160 Dongji concentrated EMUs.

In specific applications, the TCMS network control system of EMU vehicles (as shown in Figure 13) is composed of a main processing unit (CCU), a train bus (Wire Train Bus, WTB) gateway (GW), and a remote input and output unit (RIOM). The system boundary interface units include Traction Control Unit (TCU), Auxiliary Control Unit (ACU) and Driver Display Unit (DDU). The system adopts TCN standard network and TRDP Ethernet dual network redundant structure. The TCN bus based on the IEC 61375 standard is composed of the train bus WTB and the vehicle bus MVB secondary bus. It is an on-board microcomputer control system for locomotive control, monitoring and diagnosis. The central control unit (CCU) is its core component, designed with redundant control mode, carrying the realization of vehicle control functions, and completing the bus management of the entire network and locomotive logic control. GW is responsible for data protocol conversion between WTB network and MVB network to realize information transmission between locomotives. RIOM is responsible for collecting on-site information and data of the driver's cab, auxiliary electrical cabinet, and low-voltage electrical cabinet, and at the same time drives the display lights and execution control commands of the driver's console, and drives the corresponding relays, contactors and other on-site execution equipment. DDU is responsible for displaying locomotive status information in the driver's cab, as well as parameter settings and fault records. The Ethernet switch is responsible for transmitting TCMS Ethernet data. The MVB network of the vehicle is a redundant backup network of TRDP Ethernet. The Ethernet uses 4 switches to connect different devices, and the key important devices are connected to two different switches at the same time to ensure the normal operation of the vehicle. There is a ring network between the switches, and if one of the network cables is interrupted, it can be networked through other networks to increase network reliability.

The safety monitoring terminal of the pre-driving maintenance operation and the network interface of the vehicle-mounted TCMS form a complete maintenance operation system, which is connected to the ETH network switch of the vehicle-mounted TCMS network through the driver’s cab data download port (Ethernet), so that it can be networked with the vehicle network. Through real-time collection of real-time data information of EMUs, the real-time monitoring and recording of the performance test of the driver and the brake test of the whole train joint inspection during the maintenance operation process is realized. The display function is clear and concise, with log records, reports, and result statistics generation and display. Process recording methods include reports, audio recordings, video recordings, and photographs. The recorded data can be copied through the special authorized U disk media of the USB interface to ensure the authority and data security.

Claims (1)

1. A monitoring terminal for monitoring safety and maintenance of EMU vehicles with centralized power before driving, including a main control unit and a display screen; the main control unit includes: a pre-test preparation module, a driver's cab occupancy selection test module, a EMU mode confirmation test module, and a high-voltage test Test module, locomotive driver's cab equipment test module, brake test test module, test module for vehicle department, automatic phase separation test test module;

   The pre-test preparation module is used to complete the following real-time monitoring and recording: power-on of the control circuit, confirmation of brake cabinet valves, and fault confirmation;

   The driver's cab occupancy selection test module is used to complete the following real-time monitoring and recording: electric key, insulation monitoring, monitoring screen, 6A system working status confirmation, mechanical interlocking;

   The EMU mode confirmation test module is used to complete the following real-time monitoring and recording: pantograph mode selection, other working mode settings;

   The high-voltage test test module is used to complete the following real-time monitoring and recording: lifting bow and main break operation, auxiliary engine start confirmation, charger start confirmation, air compressor start confirmation, train power supply test, unattended vigilance test, redundant equipment test, locomotive start test, and safety circuit test; among them, the redundant equipment test includes emergency braking test and separate mitigation test, and the locomotive start test includes motor switching;

   The locomotive driver's cab equipment test module is used to complete the following real-time monitoring and recording: wiper test, electric curtain test, air conditioner/electric heater/fan/electric glass test module, headlight/irradiation lamp/cab light/mechanical room Lamp test, sand test, bagpipe/electric whistle test;

   The brake test module is used to complete the following real-time monitoring and recording: train emergency braking and power car independent relief test, leakage test, train air brake test and power car independent relief test, power car independent brake relief test , Train electro-pneumatic brake test; Among them, train emergency brake and power car separate relief test include emergency brake test and separate relief test, train air brake test and power car separate relief test include sensitivity brake test, continuous pressure holding Test, slow-release test for power train alone, sensitivity relief test, train electro-pneumatic brake test including stability test and stage relief test;

   The described coordinating vehicle department test module is used to complete the following real-time monitoring and recording: the sliding door test, the sliding door test includes a door opening test and a door closing test;

   The automatic over-phase test test module is used to complete the following real-time monitoring and recording: automatic over-phase and loading performance tests;

   The main control unit also includes: an automatic test module, a small item selection test module;

   The automatic test module is used for the above-mentioned eight modules to perform automated tests in sequence;

   The small item selection test module is used to select one of the above eight modules for automated testing;

   The main control unit also includes: a device status module, a system setting module, a job information module, a data processing module, and a software version module;

   The equipment status module is used to reflect the network connection situation of the TCMS equipment of the concentrated power EMU;

   The system setting module is used to complete the following operations: changing time and date, changing volume/brightness, user rights management;

   The job information module is used to complete the following operations: job log, check the last job information, check the current job information, and generate a report after the test;

   The data processing module is used to complete the following operations: ERM equipment historical data download, ERM equipment historical data decompression, TCU system management board historical data download, four-quadrant board historical data download, inverter board historical data download, U disk copy above historical data;

   The software version module includes the software version numbers used to reflect the TCMS equipment and the maintenance operation terminal of the concentrated power EMU.

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