Automatic testing device and method for end simulator of motor train unit

Abstract

The invention relates to the technical field of motor train detection, and discloses an automatic testing device and method for an end simulator of a motor train unit, and the method comprises the steps: installing a camera on the end simulator, monitoring the eye movement of an operator through an image recognition technology, giving an alarm when the operator watches a 46-pin adapter continuously for a long time, and setting a timed reminding function. And an operator is reminded to have a rest or distract attention at regular intervals, so that visual fatigue is relieved. Through the automatic test script and the intelligent prompt function, the operation steps and the input frequency are reduced, the time of an operator is saved, the test efficiency is improved, the real-time monitoring system continuously monitors the operation state of the end simulator and key indexes in the test process, feedback and alarm are provided in time, problems can be found and processed in time, and the test efficiency is improved. And the test accuracy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of motor vehicle detection, and in particular to an automatic testing device and method for a motor vehicle end simulator. Background Art

[0002] The EMU end simulator test is a test method used to verify the functions and performance of the EMU vehicle end system. These tests usually include simulating the communication between vehicles, signal transmission, and safety system functions.

[0003] At present, the EMU end signal test uses short-line analog input and output. This test method has at least the following shortcomings:

[0004] 1. Visual fatigue and operating errors: The operator may easily suffer from visual fatigue if he / she looks at the 46-pin adapter for a long time, which increases the risk of analog input and output errors. Such errors may cause damage to the vehicle and the operator, affecting driving safety and operating efficiency.

[0005] 2. The operation is complicated and time-consuming: The testing process is complicated and it takes two people a whole day to complete the test of a vehicle, which not only reduces work efficiency but also increases labor costs;

[0006] 3. Lack of intuitiveness in testing: Since the testing process is not intuitive, it is difficult for operators to understand the test status and problems in real time, which further increases the difficulty of operation and the risk of errors;

[0007] In summary, this EMU end signal test scheme has the disadvantages of visual fatigue, operating errors, complex and time-consuming operation, and lack of test intuitiveness. Therefore, it is necessary to design an automatic testing device and method for the EMU end simulator to solve the above problems. Summary of the invention

[0008] The purpose of the present invention is to solve the shortcomings in the prior art and to propose an automatic testing device and method for an EMU end simulator.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] An automatic testing method for a train end simulator comprises the following steps:

[0011] Step 1: Install a camera on the end simulator, use image recognition technology to monitor the operator's eye activities, and issue a warning when the operator stares at the 46-pin adapter for a long time. Set a timer reminder function to remind the operator to take a break or divert attention at regular intervals to reduce visual fatigue.

[0012] Step 2: Design an intuitive user interface to reduce the number of operation steps and input times, develop automated test scripts, and automate repetitive tasks in the test process, including connecting test equipment and setting parameters. Use intelligent prompts and error correction functions so that when the operator makes an input error or performs an inappropriate operation, the system can provide timely guidance or automatic corrections.

[0013] Step 3: Use a real-time monitoring system to continuously monitor the operating status of the end simulator and key indicators during the test process, provide instant feedback during the test, and display the test progress, results, and problems so that the operator can make timely adjustments and handle them;

[0014] Step 4: Record the data during the test in real time, including input and output, and operation logs. Use data analysis technology to analyze the test results, identify potential problems and room for improvement, and provide a basis for subsequent optimization.

[0015] Step 5: Provide remote access function, allowing the technical support team to remotely monitor and diagnose the operation of the end simulator, handle faults and problems in a timely manner, support remote assistance function, and the technical support team remotely guides operators to perform testing and troubleshooting to improve testing efficiency and quality.

[0016] As a preferred technical solution of the present invention, in step 1, the following method is used to monitor and manage visual fatigue:

[0017] (1) Eye movement detection: Use a camera to capture the operator's eye movements, including blinking, fixation time, and eye movement. By analyzing these eye activity patterns, the operator's concentration and fatigue level can be determined.

[0018] (2) Gaze duration monitoring: The system monitors the time the operator continuously gazes at the 46-pin adapter. When the continuous gaze time exceeds a certain threshold, the system will issue a warning and suggest the operator to take a break or divert his attention;

[0019] (3) Pupil size detection: Pupil size reflects a person’s attention level and fatigue level. The system infers the operator’s attention state by analyzing changes in pupil size, thereby promptly reminding the operator to take a break or adjust his / her posture.

[0020] (4) Head posture monitoring: monitors the operator's head posture and movement to help the system determine the operator's comfort and fatigue level. When the system detects that the head posture changes little or the head is continuously tilted, it means that the operator is already fatigued and needs to be reminded to rest.

[0021] (5) Timed reminder function: The system is set up with a timed reminder function. At regular intervals, a reminder window will automatically pop up or a sound prompt will be issued to remind the operator to take a break or divert attention. The reminder content includes suggestions such as stretching the body, looking into the distance, and closing the eyes to rest.

[0022] As a preferred technical solution of the present invention, in step 2, the automated test script development method includes:

[0023] (1) Automatically connect devices: Develop scripts to automatically connect test devices, identify devices, and automatically pair and connect them, simplifying the operator's operation process;

[0024] (2) Parameter configuration automation: Write scripts to automatically set test parameters to avoid manual parameter input;

[0025] (3) Test execution automation: Automated execution of the test process, including starting the test process, recording data, and analyzing results, reducing the operator's operating time and energy consumption.

[0026] As a preferred technical solution of the present invention, in step 3, the key indicators include:

[0027] (1) System operation status monitoring: monitor the operation status of the end simulator, including connection status, transmission rate, and data quality;

[0028] (2) Signal quality monitoring: Real-time monitoring of the signal quality transmitted by the simulator, including signal-to-noise ratio and bit error rate, to ensure the accuracy and reliability of the test data;

[0029] (3) Equipment status monitoring: Monitor the status of the test equipment, including power, temperature, and working status, and detect equipment failures or abnormalities in a timely manner.

[0030] As a preferred technical solution of the present invention, in step 4, the test result analysis application includes:

[0031] (1) Optimization plan formulation: Based on the results of data analysis, formulate targeted optimization plans, including improving test processes and optimizing parameter settings;

[0032] (2) Performance evaluation and prediction: Based on the results of data analysis, the performance and reliability of the end simulator are evaluated, and possible problems and improvement effects that may occur in the future are predicted;

[0033] (3) Continuous improvement and iteration: Based on the results of data analysis, the test methods and processes of the end simulator are continuously improved to achieve continuous optimization and iteration.

[0034] As a preferred technical solution of the present invention, in step 5, the remote access and monitoring functions include:

[0035] (1) Remote desktop access: Through remote desktop software or protocols, the support team can remotely connect to the control interface of the end simulator in real time to observe the operation of the simulator;

[0036] (2) Real-time video streaming: A camera is installed on the end simulator to transmit the real-time video stream to the remote server. The technical support team can observe the working status and test process of the simulator in real time through the network.

[0037] (3) Remote log access: The log files of the end simulator are uploaded to the cloud or internal server, and the technical support team can remotely view the logs to understand the simulator's operating history and abnormal conditions.

[0038] An automatic testing device for an EMU end simulator adopts the automatic testing method for the EMU end simulator mentioned above.

[0039] The present invention has the following beneficial effects:

[0040] 1. Improve test efficiency: Through automated test scripts and intelligent prompt functions, the operation steps and input times are reduced, which saves the operator's time and improves test efficiency;

[0041] 2. Improve test accuracy: The real-time monitoring system continuously monitors the operating status of the end simulator and key indicators during the test process, and provides timely feedback and alarms, which helps to identify problems and deal with them in a timely manner, thereby improving test accuracy;

[0042] 3. Improve user experience: Intuitive user interface design and timed reminder function help reduce operator visual fatigue, improve user experience and reduce operator workload;

[0043] 4. Optimize the test process: Real-time recording of test data and data analysis can identify potential problems and room for improvement, provide a basis for optimizing subsequent test processes, and further improve test efficiency and quality;

[0044] 5. Remote support improves efficiency: Providing remote access and support functions allows the technical support team to remotely monitor, diagnose and assist in solving problems, speeding up troubleshooting and improving testing efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 A schematic diagram of the steps of an automatic testing method for an EMU end simulator proposed by the present invention. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0047] Reference Figure 1 , an automatic testing method for a train end simulator, comprising the following steps:

[0048] Step 1: Install a camera on the end simulator, use image recognition technology to monitor the operator's eye activities, and issue a warning when the operator stares at the 46-pin adapter for a long time. Set a timer reminder function to remind the operator to rest or divert attention at regular intervals to reduce visual fatigue. In step 1, use the following methods to monitor and manage visual fatigue:

[0049] (1) Eye movement detection: Use a camera to capture the operator's eye movements, including blinking, fixation time, and eye movement. By analyzing these eye activity patterns, the operator's concentration and fatigue level can be determined.

[0050] (2) Gaze duration monitoring: The system monitors the time the operator continuously gazes at the 46-pin adapter. When the continuous gaze time exceeds a certain threshold, the system will issue a warning and suggest the operator to take a break or divert his attention;

[0051] (3) Pupil size detection: Pupil size reflects a person’s attention level and fatigue level. The system infers the operator’s attention state by analyzing changes in pupil size, thereby promptly reminding the operator to take a break or adjust his / her posture.

[0052] (4) Head posture monitoring: monitors the operator's head posture and movement to help the system determine the operator's comfort and fatigue level. When the system detects that the head posture changes little or the head is continuously tilted, it means that the operator is already fatigued and needs to be reminded to rest.

[0053] (5) Timed reminder function: The system is set up with a timed reminder function. At a certain time interval, a reminder window will automatically pop up or a sound reminder will be issued to remind the operator to take a break or divert attention. The reminder content includes suggestions such as stretching the body, looking into the distance, and closing the eyes to rest;

[0054] Step 2: Design an intuitive user interface to reduce the number of operation steps and input times, develop automated test scripts, and automate repetitive tasks in the test process, including connecting test equipment, setting parameters, and using intelligent prompts and error correction functions. When the operator makes an input error or performs an improper operation, the system can provide timely guidance or automatic correction. In step 2, the automated test script development method includes:

[0055] (1) Automatically connect devices: Develop scripts to automatically connect test devices, identify devices, and automatically pair and connect them, simplifying the operator's operation process;

[0056] (2) Parameter configuration automation: Write scripts to automatically set test parameters to avoid manual parameter input;

[0057] (3) Test execution automation: Automated execution of the test process, including starting the test process, recording data, and analyzing results, reducing the operator's operating time and energy consumption;

[0058] Step 3: Use a real-time monitoring system to continuously monitor the operating status of the end simulator and key indicators during the test process, provide instant feedback during the test, and display the test progress, results, and problems so that the operator can make timely adjustments and handle them. In step 3, the key indicators include:

[0059] (1) System operation status monitoring: monitor the operation status of the end simulator, including connection status, transmission rate, and data quality;

[0060] (2) Signal quality monitoring: Real-time monitoring of the signal quality transmitted by the simulator, including signal-to-noise ratio and bit error rate, to ensure the accuracy and reliability of the test data;

[0061] (3) Equipment status monitoring: monitor the status of the test equipment, including power, temperature, and working status, and promptly detect equipment failures or abnormalities;

[0062] Step 4: Record the data during the test in real time, including input and output, operation logs, and use data analysis technology to analyze the test results to find potential problems and room for improvement, providing a basis for subsequent optimization. In step 5, the remote access and monitoring functions include:

[0063] (1) Remote desktop access: Through remote desktop software or protocols, the support team can remotely connect to the control interface of the end simulator in real time to observe the operation of the simulator;

[0064] (2) Real-time video streaming: A camera is installed on the end simulator to transmit the real-time video stream to the remote server. The technical support team can observe the working status and test process of the simulator in real time through the network.

[0065] (3) Remote log access: The log files of the end simulator are uploaded to the cloud or internal server, and the technical support team can remotely view the logs to understand the operation history and abnormal conditions of the simulator;

[0066] Step 5: Provide remote access function, allowing the technical support team to remotely monitor and diagnose the operation of the end simulator, handle faults and problems in a timely manner, support remote assistance function, and the technical support team remotely guides the operator to perform testing and troubleshooting to improve test efficiency and quality. In step 5, the remote access and monitoring functions include:

[0067] (1) Remote desktop access: Through remote desktop software or protocols, the support team can remotely connect to the control interface of the end simulator in real time to observe the operation of the simulator;

[0068] (2) Real-time video streaming: A camera is installed on the end simulator to transmit the real-time video stream to the remote server. The technical support team can observe the working status and test process of the simulator in real time through the network.

[0069] (3) Remote log access: The log files of the end simulator are uploaded to the cloud or internal server, and the technical support team can remotely view the logs to understand the simulator's operating history and abnormal conditions.

[0070] The specific working principle of the present invention includes the following:

[0071] First, a camera is installed on the end simulator, and image recognition technology is used to monitor the operator's eye activities. By analyzing the eye movement trajectory and frequency, the system can determine the operator's concentration and whether there is a long-term gaze. When the system detects that the operator has been staring at the 46-pin adapter for a long time, that is, it exceeds a certain preset threshold, the system will trigger a warning mechanism, which can be achieved by setting an alarm or sending a reminder notification to attract the operator's attention and prompt him to divert his attention. At the same time, the system also sets a timed reminder function to remind the operator to rest or divert his attention at regular intervals. This can be achieved through the timer function, which sends reminder information to the operator at a specified time interval to remind him to rest or divert his attention to reduce visual fatigue. Overall, by monitoring the operator's eye activities through cameras and image recognition technology, and combining warning mechanisms and timed reminder functions, the system can promptly detect the operator's visual fatigue and take corresponding measures to reduce his fatigue level, thereby improving test efficiency and quality.

[0072] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can replace or change the technical solution and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic testing method for a train end simulator, characterized in that: The following steps are involved: Step 1: Install a camera on the end simulator, use image recognition technology to monitor the operator's eye activities, and issue a warning when the operator stares at the 46-pin adapter for a long time. Set a timer reminder function to remind the operator to take a break or divert attention at regular intervals to reduce visual fatigue. Step 2: Design an intuitive user interface to reduce the number of operation steps and input times, develop automated test scripts, and automate repetitive tasks in the test process, including connecting test equipment and setting parameters. Use intelligent prompts and error correction functions so that when the operator makes an input error or performs an inappropriate operation, the system can provide timely guidance or automatic corrections. Step 3: Use a real-time monitoring system to continuously monitor the operating status of the end simulator and key indicators during the test process, provide instant feedback during the test, and display the test progress, results, and problems so that the operator can make timely adjustments and handle them; Step 4: Record the data during the test in real time, including input and output, and operation logs. Use data analysis technology to analyze the test results, identify potential problems and room for improvement, and provide a basis for subsequent optimization. Step 5: Provide remote access function, allowing the technical support team to remotely monitor and diagnose the operation of the end simulator, handle faults and problems in a timely manner, support remote assistance function, and the technical support team remotely guides operators to perform testing and troubleshooting to improve testing efficiency and quality.

2. The automatic testing method of the EMU end simulator according to claim 1 is characterized in that: In step one, the following methods are used to monitor and manage visual fatigue: (1) Eye movement detection: Use a camera to capture the operator's eye movements, including blinking, fixation time, and eye movement. By analyzing these eye activity patterns, the operator's concentration and fatigue level can be determined. (2) Gaze duration monitoring: The system monitors the time the operator continuously gazes at the 46-pin adapter. When the continuous gaze time exceeds a certain threshold, the system will issue a warning and suggest the operator to take a break or divert his attention; (3) Pupil size detection: Pupil size reflects a person’s attention level and fatigue level. The system infers the operator’s attention state by analyzing changes in pupil size, thereby promptly reminding the operator to take a break or adjust his / her posture. (4) Head posture monitoring: monitors the operator's head posture and movement to help the system determine the operator's comfort and fatigue level. When the system detects that the head posture changes little or the head is continuously tilted, it means that the operator is already fatigued and needs to be reminded to rest. (5) Timed reminder function: The system is set with a timed reminder function. At regular intervals, a reminder window will automatically pop up or a sound prompt will be issued to remind the operator to take a break or divert attention. The reminder content includes suggestions such as stretching the body, looking into the distance, and closing the eyes to rest.

3. The automatic testing method of the EMU end simulator according to claim 1 is characterized in that: In the step 2, the automated test script development method includes: (1) Automatically connect devices: Develop scripts to automatically connect test devices, identify devices, and automatically pair and connect them, simplifying the operator's operation process; (2) Parameter configuration automation: Write scripts to automatically set test parameters to avoid manual parameter input; (3) Test execution automation: Automated execution of the test process, including starting the test process, recording data, and analyzing results, reducing the operator's operating time and energy consumption.

4. The automatic testing method of the EMU end simulator according to claim 1 is characterized in that: In step three, the key indicators include: (1) System operation status monitoring: monitor the operation status of the end simulator, including connection status, transmission rate, and data quality; (2) Signal quality monitoring: Real-time monitoring of the signal quality transmitted by the simulator, including signal-to-noise ratio and bit error rate, to ensure the accuracy and reliability of the test data; (3) Equipment status monitoring: Monitor the status of the test equipment, including power, temperature, and working status, and detect equipment failures or abnormalities in a timely manner.

5. The automatic testing method of the EMU end simulator according to claim 1 is characterized in that: In step 4, the test result analysis application includes: (1) Optimization plan formulation: Based on the results of data analysis, formulate targeted optimization plans, including improving test processes and optimizing parameter settings; (2) Performance evaluation and prediction: Based on the results of data analysis, the performance and reliability of the end simulator are evaluated, and possible problems and improvement effects that may occur in the future are predicted; (3) Continuous improvement and iteration: Based on the results of data analysis, the test methods and processes of the end simulator are continuously improved to achieve continuous optimization and iteration.

6. The automatic testing method of the EMU end simulator according to claim 1 is characterized in that: In step five, the remote access and monitoring functions include: (1) Remote desktop access: Through remote desktop software or protocols, the support team can remotely connect to the control interface of the end simulator in real time to observe the operation of the simulator; (2) Real-time video streaming: A camera is installed on the end simulator to transmit the real-time video stream to the remote server. The technical support team can observe the working status and test process of the simulator in real time through the network. (3) Remote log access: The log files of the end simulator are uploaded to the cloud or internal server, and the technical support team can remotely view the logs to understand the simulator's operating history and abnormal conditions.

7. An automatic test device for a train end simulator, characterized in that: The device adopts the automatic testing method of the EMU end simulator described in any one of claims 1-6.

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