Vehicle calibration test system

Abstract

The invention relates to the technical field of vehicle performance test, is used for solving the problem that a traditional vehicle calibration test system excessively depends on manual operation and is insufficient in single index evaluation, and particularly discloses a vehicle calibration test system which comprises a preparation module, a response analysis module, a display analysis module, a test analysis module and a display terminal. The method comprises the following steps: identifying a vehicle, detecting a hardware state, setting a calibration environment grade, completing preparation work before testing, then monitoring a response state and a display state of the vehicle in a set testing time period in real time, respectively extracting and analyzing to obtain a sound measuring value and a display measuring value, and on the basis, combining the sound measuring value, the display measuring value and an environment influence factor, determining the sound measuring value and the display measuring value. And calculating the mapping accurate evaluation value, and evaluating the calibration test result of the vehicle according to the mapping accurate evaluation value, so that the vehicle calibration test performance can be comprehensively evaluated, the test efficiency and accuracy are improved, and the influence of human factors on the test result is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle performance testing, and in particular to a vehicle calibration testing system. Background Art

[0002] With the rapid development of the automotive industry, vehicle performance and safety performance have become the core focus of the industry. In order to ensure the stability and responsiveness of the vehicle under various working conditions, vehicle calibration testing has become an indispensable part of the automotive development process. However, the existing technology has the following main deficiencies:

[0003] 1. Reliance on manual operation and recording: Traditional testing methods rely on a lot of manual intervention, including the collection, recording and analysis of test data. This method is not only time-consuming and labor-intensive, but also easily affected by human subjective factors, resulting in insufficient reliability of test results;

[0004] 2. Lack of integrated analysis of multi-dimensional data: Most existing calibration test systems focus on testing a single performance indicator, failing to achieve a comprehensive evaluation of the multi-dimensional performance of a vehicle under specific conditions, and lack systematic and scientific evaluation standards.

[0005] In order to solve the above defects, a technical solution is now provided. Summary of the invention

[0006] The purpose of the present invention is to solve the problems of the traditional vehicle calibration test system in terms of manual dependence and single indicator evaluation, and to propose a vehicle calibration test system.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A vehicle calibration test system, comprising:

[0009] Preparation module, used to prepare for vehicle calibration test;

[0010] The response analysis module is used to monitor the response records of the vehicle in a set test period in real time, thereby obtaining the response status parameters of the vehicle in the set test period. The response status parameters include the actual response points, the number of qualified response points, the response time value and the number of freezes corresponding to each set speed, and analyze the measured sound value of the vehicle in the set test period to obtain the measured sound value of the vehicle in the set test period;

[0011] The display analysis module is used to monitor in real time the display duration and display value of each instruction corresponding to each set speed of the vehicle during the set test period, and analyze the measured display value of the vehicle during the set test period to obtain the measured display value of the vehicle during the set test period;

[0012] The test analysis module is used to extract the values ​​of the environmental impact factor δ, the measured sound value CXP and the measured display value CXZ of the vehicle within the set test period and normalize them. According to the formula: BCP=1(CXP×γ1+CXZ×γ2)×δ, the standard test evaluation value BCP is obtained to determine the test result, where γ1 and γ2 represent the set correction factors respectively;

[0013] The display terminal is used to display and notify the test results.

[0014] Furthermore, preparations are made before the vehicle calibration test begins. The specific process is as follows:

[0015] Sensors are deployed at the entrance of the workstation. When the system confirms that the vehicle is parked in place, the workstation door is automatically closed and the QR code on the vehicle is scanned to obtain vehicle information. At the same time, the hardware status information of the test system is fully tested. The vehicle information includes vehicle ID, vehicle model, sensor configuration, and calibration test tasks. The hardware status information includes calibration targets, ground rails, robots, and vehicle sensors.

[0016] After completing vehicle identification and hardware detection, the calibration environment level is set according to the calibration requirements, and each calibration environment level corresponds to an environmental impact factor δ;

[0017] After all preparations are completed, a start test signal is generated to trigger the execution of the calibration test task.

[0018] Furthermore, the response records of the vehicle within the set test period are monitored in real time. The specific process is as follows:

[0019] Extract the actual response points corresponding to each set speed from the response records of the vehicle in the set test period, and match them with the set response points. If a certain actual response point corresponding to a certain set speed successfully matches a certain set response point, then mark the actual response point corresponding to the set speed as a qualified response point, and count the number of qualified response points corresponding to each set speed of the vehicle in the set test period;

[0020] Extract the response time of the corresponding standard response point at each set speed from the response record of the vehicle in the set test period, and calculate the average of the response time of the corresponding standard response point at each set speed to obtain the corresponding response time value of the vehicle at each set speed in the set test period;

[0021] The number of jams corresponding to each set speed is extracted from the response record of the vehicle in the set test period, and the number of jams corresponding to each set speed of the vehicle in the set test period is obtained.

[0022] Furthermore, the sound value of the vehicle during the set test period is analyzed, and the specific process is as follows:

[0023] The actual response point, the number of qualified response points, the response time value and the number of freezes corresponding to each set speed are extracted from the response state parameters of the vehicle in the set test period, and marked as Xshx respectively. s 、Xdba s 、Xxun s and Xkds s , s represents the number of each set speed, and s = 1, 2, 3...d, d represents the total number of each set speed number, extract the four values ​​for normalization, according to the formula:

[0024] The measured sound value CXP of the vehicle in the set test period is obtained, where:

[0025] XxX s-1 、Xdba s-1 、Xxun s-1 and Xkds s-1 They respectively represent the actual response point, the number of qualified response points, the response time value and the number of freezes corresponding to the s-1th set speed;

[0026] Xshx1, Xdba1, Xxun1 and Xkds1 represent the actual response point, the number of qualified response points, the response time value and the number of freezes corresponding to the first set speed respectively;

[0027] XxX * 、Xdba * 、Xxun * and Xkds * Respectively represent the reference actual response point, the reference standard response point number, the reference response time value and the reference freeze number;

[0028] ΔXshx s , ΔXdba s , ΔXxun s and ΔXkds s Respectively represent the actual response point difference, the standard response point number difference, the response time difference and the jam number difference corresponding to each set speed;

[0029] p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11, and p12 represent the set weight factors respectively;

[0030] Xbdp1, Xbdp2, Xbdp3 and Xbdp4 represent the actual response point fluctuation assessment index, the standard response point number fluctuation assessment index, the response time value fluctuation assessment index and the freeze number fluctuation assessment index respectively;

[0031] η1, η2, η3 and η4 respectively represent the weight coefficients of the actual response point fluctuation assessment index, the standard response point number fluctuation assessment index, the response time value fluctuation assessment index and the freeze number fluctuation assessment index, and η1>η2>η3>η4.

[0032] Furthermore, the display duration of each instruction corresponding to each set speed of the vehicle during the set test period is monitored in real time. The specific process is as follows:

[0033] Obtain the time point at which the vehicle receives each instruction at each set speed within a set test period;

[0034] Obtain the display video corresponding to each set speed of the vehicle in the set test period, and extract the display time point after receiving each instruction at each set speed, thereby subtracting the time point of receiving each instruction at each set speed of the vehicle in the set test period from the display time point of the corresponding received instruction, and obtain the display duration Sxpz1 of each instruction at each set speed of the vehicle in the set test period s z , z represents the number of each instruction, and z=1, 2, 3…m1, m1 represents the total number of instruction numbers.

[0035] Furthermore, the display configuration values ​​of the vehicle corresponding to each instruction at each set speed within the set test period are monitored in real time. The specific process is as follows:

[0036] Extracting the display video of the vehicle receiving each instruction at each set speed in the set test period as the display dynamic graph of the vehicle corresponding to each instruction at each set speed in the set test period;

[0037] Extract from the system a reference display dynamic graph of the vehicle corresponding to each instruction at each set speed within a set test period;

[0038] Parse the displayed dynamic image frame by frame to obtain the display image of each frame;

[0039] Parsing the reference display dynamic image frame by frame to obtain a frame reference display image;

[0040] Extracting the display contour corresponding to the display point from each frame display image to obtain the display contour of each frame display image;

[0041] Extracting a reference display contour corresponding to a display point from each frame reference display image to obtain a reference display contour of each frame reference display image;

[0042] The display contour of each frame display image in each instruction corresponding to each set speed of the vehicle in the set test period is overlapped and compared with the reference display contour of each frame reference display image corresponding to it, and the display contour weight value Slkz of each frame display image in each instruction corresponding to each set speed of the vehicle in the set test period is obtained.s zx , display weight value Slcd s zx And outline color ratio Slsb s zx ;

[0043] Wherein, x represents the number of each frame display image, and x=1, 2, 3...m2, m2 represents the total number of the frame display image numbers;

[0044] According to the formula: Get the display value Sxpz2 of each command corresponding to each set speed of the vehicle during the set test period s z ;

[0045] Among them, ΦSlkz s zx ΦSlcd s zx and ΦSlsb s zx They respectively represent the reference outline weight-to-face value, reference outline weight-to-length value and reference outline color ratio value of each frame display image in each instruction corresponding to each set speed of the vehicle within the set test period, and q1, q2 and q3 respectively represent the set weight factors.

[0046] Furthermore, the measured values ​​of the vehicle within the set test period are analyzed, and the specific process is as follows:

[0047] Extract the display duration Sxpz1 of each instruction corresponding to each set speed of the vehicle during the set test period s z And the display value Sxpz2 s z The value of is normalized according to the formula: Get the measured display value CXZ of the vehicle during the set test period, where: SXP s Indicates the corresponding indicator evaluation index at each set speed, ΦSXP s represents the reference display evaluation index corresponding to each set speed, λ1 and λ2 represent the weight coefficients of display duration and display matching value respectively, and λ1<λ2, μ represents the set correction factor.

[0048] Further, the test results are determined, and the specific process is as follows:

[0049] Compare and analyze the standard test accuracy value with the set reference standard test accuracy value. If the standard test accuracy value is greater than the set reference standard test accuracy value, the test result is determined to be the first-level standard test accuracy.

[0050] If the standard test accuracy value is equal to the set reference standard test accuracy value, the test result is judged to be the second-level standard test accuracy;

[0051] If the standard test accuracy value is less than the set reference standard test accuracy value, the test result is judged as the third-level standard test accuracy;

[0052] The test results are composed of primary calibration accuracy, secondary calibration accuracy and tertiary calibration accuracy.

[0053] Compared with the known prior art, the technical solution provided by the present invention has the following beneficial effects:

[0054] The present invention obtains vehicle information by scanning the vehicle QR code, detects the hardware status of the calibration target, ground rail, sensor, etc., sets the calibration environment level according to the calibration requirements, generates the corresponding environmental impact factor, and ensures the integrity and consistency of the test conditions;

[0055] During the test, the response record and display status of the vehicle within the set test period are monitored in real time, and key parameters including actual response points, number of qualified response points, response time, number of freezes, display time and display configuration value are extracted. These parameters not only fully reflect the actual performance of the vehicle during the test, but also provide data support for subsequent test analysis;

[0056] Subsequently, the extracted parameters are calculated and analyzed, and a comprehensive evaluation is performed in combination with environmental influencing factors. The calculated standard evaluation values ​​are compared with the set reference standard evaluation values ​​to determine the test results, thereby quantifying the calibration performance of the vehicle under different environmental conditions. It can more objectively reflect the comprehensive performance of the vehicle, which not only significantly improves the efficiency and accuracy of vehicle calibration tests, reduces the impact of human factors on test results, but also provides a scientific and comprehensive new solution for the evaluation of vehicle calibration performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0058] Figure 1 It is the overall module block diagram of the present invention. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] like Figure 1 As shown, a vehicle calibration test system includes: a preparation module, a response analysis module, a display analysis module, a test analysis module and a display terminal;

[0061] The preparation module is used to prepare for the vehicle calibration test. The specific process is as follows:

[0062] Deploy sensors at the entrance of the workstation, such as laser radar or infrared sensors, to detect whether the vehicle has arrived at the designated location. When the system confirms that the vehicle is parked in place, it automatically closes the workstation door and scans the QR code on the vehicle to obtain vehicle information. The vehicle information includes: vehicle ID (used to identify the unique identity of the vehicle), vehicle model (specific model of the vehicle), sensor configuration (identify the type and location of sensors equipped on the vehicle), and calibration test tasks (calibration test tasks that the vehicle needs to perform);

[0063] At the same time, the hardware status information of the test system is comprehensively tested to ensure that all components are operating normally, including: calibration target (confirming that its position and status meet the test requirements), ground rail and robot (detecting whether their movement and execution functions are normal), vehicle sensors (checking the connection status of various sensors);

[0064] After completing vehicle identification and hardware detection, set the calibration environment level according to the calibration requirements. Each calibration environment level corresponds to a set of calibration environment parameters, including but not limited to temperature, wind speed, and rainfall.

[0065] After all preparations are completed, a "start test signal" is generated to trigger the execution of the calibration test task. Specifically, the vehicle is released into test mode within the set test period and the corresponding test tasks are generated. These test tasks fully cover the vehicle's perimeter calibration, surround calibration and lidar performance test.

[0066] In the embodiment of the present invention, the periscopic calibration refers to the calibration of the sensor array around the vehicle, the surround calibration refers to the 360° panoramic vision achieved by the combination of multiple sensors, and the laser radar refers to the alignment of the point cloud data of the laser radar to the global coordinate system;

[0067] The response analysis module is used to analyze the response status of the vehicle within the set test period. The specific analysis process is as follows:

[0068] During the execution of the test task, the response record of the vehicle in the set test period is monitored in real time, thereby obtaining the response state parameters of the vehicle in the set test period, and the measured sound value of the vehicle in the set test period is analyzed to obtain the measured sound value of the vehicle in the set test period;

[0069] Preferably, the response state parameters of the vehicle after the test mode is released within the set test period are monitored, and the specific monitoring method is:

[0070] By collecting the response records of the vehicle within the set test period, the response records of the vehicle within the set test period are obtained;

[0071] Extract the actual response points corresponding to each set speed from the response records of the vehicle in the set test period, and match them with the set response points. If a certain actual response point corresponding to a certain set speed successfully matches a certain set response point, then mark the actual response point corresponding to the set speed as a qualified response point, and count the number of qualified response points corresponding to each set speed of the vehicle in the set test period;

[0072] Extract the response time of the corresponding standard response point at each set speed from the response record of the vehicle in the set test period, and calculate the average of the response time of the corresponding standard response point at each set speed to obtain the corresponding response time value of the vehicle at each set speed in the set test period;

[0073] Extracting the number of jams corresponding to each set speed from the response record of the vehicle in the set test period, and obtaining the number of jams corresponding to each set speed of the vehicle in the set test period;

[0074] The response state parameters of the vehicle in the set test period are composed of the actual response points, the number of qualified response points, the response time value and the number of freezes corresponding to each set speed of the vehicle in the set test period;

[0075] It should be noted that the actual response points refer to the actual reaction points generated by the vehicle according to the input command at a certain set speed during the set test period. These points record the specific response behavior of the vehicle to the test signal and are a direct reflection of the actual performance of the vehicle.

[0076] The number of qualified response points refers to the number of points in the vehicle's actual response points that successfully match the preset response points, which indicates the accuracy of the vehicle's response at a certain speed;

[0077] The response time value refers to the time interval between the vehicle receiving a test command and completing the corresponding action. By calculating the average response time of the standard response point at each speed, the overall response time value can be obtained, which reflects the vehicle's response speed and efficiency to the input signal.

[0078] The number of jams refers to the number of abnormal delays, lags or short interruptions when the vehicle responds at a certain speed within a set test period, which evaluates the stability and smoothness of the vehicle system;

[0079] Preferably, the sound value of the vehicle during the set test period is analyzed, and the specific analysis method is as follows:

[0080] The actual response point, the number of qualified response points, the response time value and the number of freezes corresponding to each set speed are extracted from the response state parameters of the vehicle in the set test period, and marked as Xshx respectively. s 、Xdba s 、Xxun s and Xkds s , s represents the number of each set speed, and s = 1, 2, 3...d, d represents the total number of each set speed number, extract the four values ​​for normalization, according to the formula:

[0081] The measured sound value CXP of the vehicle in the set test period is obtained, where:

[0082] XxX s-1 、Xdba s-1 、Xxun s-1 and Xkds s-1 They respectively represent the actual response point, the number of qualified response points, the response time value and the number of freezes corresponding to the s-1th set speed;

[0083] Xshx1, Xdba1, Xxun1 and Xkds1 represent the actual response point, the number of qualified response points, the response time value and the number of freezes corresponding to the first set speed respectively;

[0084] XxX * 、Xdba * 、Xxun * and Xkds * Respectively represent the reference actual response point, the reference standard response point number, the reference response time value and the reference freeze number;

[0085] ΔXshx s , ΔXdba s , ΔXxun s and ΔXkds sRespectively represent the actual response point difference, the standard response point number difference, the response time difference and the jam number difference corresponding to each set speed;

[0086] p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11, and p12 represent the set weight factors respectively;

[0087] Xbdp1, Xbdp2, Xbdp3 and Xbdp4 represent the actual response point fluctuation assessment index, the standard response point number fluctuation assessment index, the response time value fluctuation assessment index and the freeze number fluctuation assessment index respectively;

[0088] η1, η2, η3 and η4 represent the weight coefficients of the actual response point fluctuation assessment index, the standard response point number fluctuation assessment index, the response time value fluctuation assessment index and the freeze number fluctuation assessment index, respectively, and η1>η2>η3>η4;

[0089] The display analysis module is used to analyze the display status of the vehicle within the set test period. The specific analysis process is as follows:

[0090] Preferably, the display duration of each instruction received by the vehicle at each set speed within the set test period is obtained, and the display duration of each instruction received by the vehicle at each set speed within the set test period is obtained, which is specifically obtained as follows:

[0091] Acquiring the time points at which the vehicle receives each instruction at each set speed within the set test period, and obtaining the time points at which the vehicle receives each instruction at each set speed within the set test period;

[0092] The display video corresponding to each set speed of the vehicle in the set test period is obtained, and the display video corresponding to each set speed of the vehicle in the set test period is obtained, and the display time point after receiving each instruction at each set speed is extracted as the display time point of each instruction received by the vehicle at each set speed in the set test period. Therefore, the time point of each instruction received by the vehicle at each set speed in the set test period is subtracted from the display time point of the corresponding instruction received, and the display time length of each instruction corresponding to each set speed of the vehicle in the set test period is obtained, which is recorded as Sxpz1 s z ;

[0093] Preferably, the display video of the vehicle receiving each instruction at each set speed in the set test period is extracted as the display dynamic graph of the vehicle corresponding to each instruction at each set speed in the set test period;

[0094] Extract from the system a reference display dynamic graph of the vehicle corresponding to each instruction at each set speed within a set test period;

[0095] The display dynamic graphs corresponding to each instruction at each set speed of the vehicle in the set test period are analyzed frame by frame to obtain the display graphs of each frame corresponding to each instruction at each set speed of the vehicle in the set test period;

[0096] The reference display dynamic graph corresponding to each instruction at each set speed of the vehicle in the set test period is analyzed frame by frame to obtain each frame reference display graph corresponding to each instruction at each set speed of the vehicle in the set test period;

[0097] Extracting the display contour corresponding to the display point from each frame display image corresponding to each instruction at each set speed of the vehicle in the set test period, and obtaining the display contour of each frame display image in each instruction at each set speed of the vehicle in the set test period;

[0098] Extracting a reference display contour corresponding to a display point from each frame reference display diagram corresponding to each instruction at each set speed of the vehicle within a set test period, and obtaining a reference display contour of each frame reference display diagram in each instruction at each set speed of the vehicle within the set test period;

[0099] It should be noted that the display point refers to the display diagram corresponding to each set speed of the vehicle within the set test period, which is associated with the input command and serves as the key visual mark or pixel position of the system response, and is usually used to reflect the specific changes in the display status of the vehicle during the execution of the command;

[0100] The display contours of each frame display image in each instruction corresponding to each set speed of the vehicle in the set test period are overlapped and compared with the reference display contours of each frame reference display image corresponding to each set speed of the vehicle in the set test period, and the display contour weight value, display contour weight length value and display contour color ratio value of each frame display image in each instruction corresponding to each set speed of the vehicle in the set test period are obtained, and they are marked as Slkz s zx 、Slcd s zx and Slsb s zx , where z represents the number of each instruction, and z=1, 2, 3…m1, m1 represents the total number of the instruction numbers, x represents the number of each frame display image, and x=1, 2, 3…m2, m2 represents the total number of the frame display image numbers;

[0101] According to the formula: Get the display value Sxpz2 of each command corresponding to each set speed of the vehicle during the set test period s z , where ΦSlkz s zx ΦSlcd s zx and ΦSlsb szx They respectively represent the reference outline weight-to-face value, reference outline weight-to-length value and reference outline color ratio value of each frame display image in each instruction corresponding to each set speed of the vehicle in the set test period, and q1, q2 and q3 respectively represent the set weight factors;

[0102] It should be noted that the visible contour weight value refers to the area value of the overlapping part of the contour area between the display image and the reference display image corresponding to each set speed within the set test period of the vehicle, reflecting the degree of contour matching between the display image and the reference image. The higher the value, the higher the degree of contour overlap between the two.

[0103] The outline overlap value refers to the length of the overlapping part of the outline boundary line of the display image and the outline boundary line of the reference display image. It is used to measure the consistency between the outline boundary of the display image and the reference outline boundary. The larger the overlap length, the higher the matching degree.

[0104] The outline color ratio refers to the color matching degree between the outline area of ​​the display image and the outline area of ​​the reference display image, reflecting the consistency of the color information of the display image and the reference image within the outline. The color matching ratio is calculated by extracting and analyzing the pixels in the outline area of ​​the display image and the reference image, usually based on color similarity metrics (such as Euclidean distance or color histogram similarity);

[0105] Extract the display duration Sxpz1 of each instruction corresponding to each set speed of the vehicle during the set test period s z And the display value Sxpz2 s z The value of is normalized according to the formula: Get the measured display value CXZ of the vehicle within the set test period, where:

[0106] SXP s Indicates the corresponding indicator evaluation index of the vehicle at each set speed within the set test period;

[0107] ΦSXP s Indicates the reference indicator evaluation index corresponding to each set speed of the vehicle within the set test period;

[0108] λ1 and λ2 represent the weight coefficients of display duration and display matching value respectively, and λ1<λ2, μ represents the set correction factor;

[0109] The test analysis module is used to analyze the test results of the vehicle within the set test period. The specific analysis process is as follows:

[0110] Obtain the calibrated environmental level of the vehicle within the set test period, substitute the calibrated environmental level into the preset environmental impact table for comparison and matching analysis of environmental impact factors, and each calibrated environmental level corresponds to an environmental impact factor, and the environmental impact factor is marked as δ;

[0111] Extract the values ​​of the environmental impact factor δ, the measured sound value CXP and the measured display value CXZ of the vehicle in the set test period and normalize them. According to the formula: BCP=1(CXP×γ1+CXZ×γ2)×δ, the standard evaluation value BCP of the vehicle in the set test period is obtained, where γ1 and γ2 represent the set correction factors respectively.

[0112] Compare and analyze the vehicle's standard measurement criterion value BCP within the set test period with the set reference standard measurement criterion value BCY. If the vehicle's standard measurement criterion value BCP within the set test period is greater than the set reference standard measurement criterion value BCY, then the test result of the vehicle within the set test period is determined to be the first-level standard measurement accuracy. If the vehicle's standard measurement criterion value BCP within the set test period is equal to the set reference standard measurement criterion value BCY, then the test result of the vehicle within the set test period is determined to be the second-level standard measurement accuracy. If the vehicle's standard measurement criterion value BCP within the set test period is less than the set reference standard measurement criterion value BCY, then the test result of the vehicle within the set test period is determined to be the third-level standard measurement accuracy.

[0113] The first level standard test accuracy, the second level standard test accuracy and the third level standard test accuracy constitute the test results of the vehicle within the set test period;

[0114] The display terminal is used to display and notify the test results of the vehicle within the set test period, and at the same time open the door of the workstation, and then the vehicle drives away;

[0115] In a specific embodiment, the test result of the vehicle within the set test period is displayed and notified, specifically: if the test result of the vehicle within the set test period is the first-level calibration accuracy, the test result of the vehicle within the set test period is displayed as the vehicle calibration priority level;

[0116] If the test result of the vehicle in the set test period is the second level calibration accuracy, the test result of the vehicle in the set test period is displayed as the vehicle calibration accuracy;

[0117] If the test result of the vehicle in the set test period is the third level calibration accuracy, the test result of the vehicle in the set test period is displayed as the vehicle calibration difference level;

[0118] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A vehicle calibration test system, comprising a preparation module for preparing for a vehicle calibration test, characterized in that: Also includes: The response analysis module is used to monitor the response records of the vehicle in a set test period in real time, thereby obtaining the response status parameters of the vehicle in the set test period. The response status parameters include the actual response points, the number of qualified response points, the response time value and the number of freezes corresponding to each set speed, and analyze the measured sound value of the vehicle in the set test period to obtain the measured sound value of the vehicle in the set test period; The display analysis module is used to monitor in real time the display duration and display value of each instruction corresponding to each set speed of the vehicle during the set test period, and analyze the measured display value of the vehicle during the set test period to obtain the measured display value of the vehicle during the set test period; The test analysis module is used to extract the values ​​of the environmental impact factor δ, the measured sound value CXP and the measured display value CXZ of the vehicle within the set test period and normalize them. According to the formula: BCP=1(CXP×γ1+CXZ×γ2)×δ, the standard test evaluation value BCP is obtained to determine the test result, where γ1 and γ2 represent the set correction factors respectively; The display terminal is used to display and notify the test results.

2. A vehicle calibration test system according to claim 1, characterized in that: Before starting the vehicle calibration test, prepare for the test. The specific process is as follows: Sensors are deployed at the entrance of the workstation. When the system confirms that the vehicle is parked in place, the workstation door is automatically closed and the QR code on the vehicle is scanned to obtain vehicle information. At the same time, the hardware status information of the test system is fully tested. The vehicle information includes vehicle ID, vehicle model, sensor configuration, and calibration test tasks. The hardware status information includes calibration targets, ground rails, robots, and vehicle sensors. After completing vehicle identification and hardware detection, the calibration environment level is set according to the calibration requirements, and each calibration environment level corresponds to an environmental impact factor δ; After all preparations are completed, a start test signal is generated to trigger the execution of the calibration test task.

3. A vehicle calibration test system according to claim 1, characterized in that: Real-time monitoring of the vehicle's response records within the set test period. The specific process is as follows: Extract the actual response points corresponding to each set speed from the response records of the vehicle in the set test period, and match them with the set response points. If a certain actual response point corresponding to a certain set speed successfully matches a certain set response point, then mark the actual response point corresponding to the set speed as a qualified response point, and count the number of qualified response points corresponding to each set speed of the vehicle in the set test period; Extract the response time of the corresponding standard response point at each set speed from the response record of the vehicle in the set test period, and calculate the average of the response time of the corresponding standard response point at each set speed to obtain the corresponding response time value of the vehicle at each set speed in the set test period; The number of jams corresponding to each set speed is extracted from the response record of the vehicle in the set test period, and the number of jams corresponding to each set speed of the vehicle in the set test period is obtained.

4. A vehicle calibration test system according to claim 1, characterized in that: Analyze the sound value of the vehicle within the set test period. The specific process is as follows: The actual response point, the number of qualified response points, the response time value and the number of freezes corresponding to each set speed are extracted from the response state parameters of the vehicle in the set test period, and marked as Xshx respectively. s 、Xdba s 、Xxun s and Xkds s , s represents the number of each set speed, and s = 1, 2, 3...d, d represents the total number of each set speed number, extract the four values ​​for normalization, according to the formula: The measured sound value CXP of the vehicle in the set test period is obtained, where: XxX s-1 、Xdba s-1 、Xxun s-1 and Xkds s-1 They respectively represent the actual response point, the number of qualified response points, the response time value and the number of freezes corresponding to the s-1th set speed; Xshx1, Xdba1, Xxun1 and Xkds1 represent the actual response point, the number of qualified response points, the response time value and the number of freezes corresponding to the first set speed respectively; XxX * 、Xdba * 、Xxun * and Xkds * Respectively represent the reference actual response point, the reference standard response point number, the reference response time value and the reference freeze number; ΔXshx s , ΔXdba s , ΔXxun s and ΔXkds s Respectively represent the actual response point difference, the standard response point number difference, the response time difference and the jam number difference corresponding to each set speed; p1, p2, p3, p4, p5, p6, p7, p8, p9, p10, p11, and p12 represent the set weight factors respectively; Xbdp1, Xbdp2, Xbdp3 and Xbdp4 represent the actual response point fluctuation assessment index, the standard response point number fluctuation assessment index, the response time value fluctuation assessment index and the freeze number fluctuation assessment index respectively; η1, η2, η3 and η4 respectively represent the weight coefficients of the actual response point fluctuation assessment index, the standard response point number fluctuation assessment index, the response time value fluctuation assessment index and the freeze number fluctuation assessment index, and η1>η2>η3>η4.

5. A vehicle calibration test system according to claim 1, characterized in that: Real-time monitoring of the display duration of each command at each set speed during the set test period. The specific process is as follows: Obtain the time point at which the vehicle receives each instruction at each set speed within a set test period; Obtain the display video corresponding to each set speed of the vehicle in the set test period, and extract the display time point after receiving each instruction at each set speed, thereby subtracting the time point of receiving each instruction at each set speed of the vehicle in the set test period from the display time point of the corresponding received instruction, and obtain the display duration Sxpz1 of each instruction at each set speed of the vehicle in the set test period s z .

6. A vehicle calibration test system according to claim 1, characterized in that: Real-time monitoring of the display value of each command corresponding to each set speed of the vehicle during the set test period. The specific process is as follows: Extracting the display video of the vehicle receiving each instruction at each set speed in the set test period as the display dynamic graph of the vehicle corresponding to each instruction at each set speed in the set test period; Extract from the system a reference display dynamic graph of the vehicle corresponding to each instruction at each set speed within a set test period; Parse the displayed dynamic image frame by frame to obtain the display image of each frame; Parsing the reference display dynamic image frame by frame to obtain a frame reference display image; Extracting the display contour corresponding to the display point from each frame display image to obtain the display contour of each frame display image; Extracting a reference display contour corresponding to a display point from each frame reference display image to obtain a reference display contour of each frame reference display image; The display contour of each frame display image in each instruction corresponding to each set speed of the vehicle in the set test period is overlapped and compared with the reference display contour of each frame reference display image corresponding to it, and the display contour weight value Slkz of each frame display image in each instruction corresponding to each set speed of the vehicle in the set test period is obtained. s zx , display weight value Slcd s zx And outline color ratio Slsb s zx ; Wherein, x represents the number of each frame display image, and x=1, 2, 3...m2, m2 represents the total number of the frame display image numbers; According to the formula: Get the display value Sxpz2 of each command corresponding to each set speed of the vehicle during the set test period s z ; Among them, ΦSlkz s zx ΦSlcd s zx and ΦSlsb s zx They respectively represent the reference outline weight-to-face value, reference outline weight-to-length value and reference outline color ratio value of each frame display image in each instruction corresponding to each set speed of the vehicle within the set test period, and q1, q2 and q3 respectively represent the set weight factors.

7. A vehicle calibration test system according to claim 1, characterized in that: Analyze the measured values ​​of the vehicle within the set test period. The specific process is as follows: Extract the display duration Sxpz1 of each instruction corresponding to each set speed of the vehicle during the set test period s z And the display value Sxpz2 s z The value of is normalized according to the formula: Get the measured display value CXZ of the vehicle during the set test period, where: SXP s Indicates the corresponding indicator evaluation index at each set speed, ΦSXP s represents the reference display evaluation index corresponding to each set speed, λ1 and λ2 represent the weight coefficients of display duration and display matching value respectively, and λ1<λ2, μ represents the set correction factor.

8. A vehicle calibration test system according to claim 1, characterized in that: Determine the test results. The specific process is as follows: Compare and analyze the standard test accuracy value with the set reference standard test accuracy value. If the standard test accuracy value is greater than the set reference standard test accuracy value, the test result is determined to be the first-level standard test accuracy. If the standard test accuracy value is equal to the set reference standard test accuracy value, the test result is judged to be the second-level standard test accuracy; If the standard test accuracy value is less than the set reference standard test accuracy value, the test result is judged as the third-level standard test accuracy; The test results are composed of primary calibration accuracy, secondary calibration accuracy and tertiary calibration accuracy.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 8 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 8 are implemented.

Images