A high-speed connector plug-in life simulation test machine
By designing a high-speed connector plug-in and unplugging life simulation test machine, using multi-dimensional sensors to collect data in real time and adjust the increment of the control amount of the drive motor through compensation algorithms, accurate compensation and fault judgment of contact force values are achieved, and the problems of deviation and low reliability of test results of traditional test machines are solved, improving the reliability and accuracy of test results.
Patent Information
- Application Number
- CN202510369593.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2045-03-27
AI Technical Summary
Traditional high-speed connector plug-in and unplugging life simulation test machines are difficult to adjust the contact force dynamically in real time, resulting in deviations in the test results, and the fixed error threshold is prone to misjudgment or misjudgment due to instantaneous interference, affecting the reliability of the test.
Design a high-speed connector plug-in and unplugging life simulation test machine, including information acquisition terminal, data calculation terminal, data judgment terminal and data processing terminal. Data is collected in real time through six-dimensional force sensors, temperature sensors and acceleration sensors, comprehensive contact force errors are calculated in real time, and the increment of control amount of the drive motor is adjusted through compensation algorithms to achieve accurate compensation of contact force values. At the same time, the control frequency and contact force error value of the control amount increment are comprehensively compared to determine whether the high-speed connector is faulty, and the test is immediately terminated and the acousto-light alarm is performed when a fault is detected.
It realizes the maintenance of high-precision control under complex working conditions, improves the reliability and accuracy of the simulation test results of plug-in and unplugging life, and avoids misjudgment or misjudgment caused by instantaneous interference.
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Figure CN119881750B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of life simulation, and in particular to a high-speed connector plug-in life simulation test machine. Background Art
[0002] High-speed connectors are widely used in communication equipment, new energy vehicles, aerospace and other fields. Their plug-in life directly affects the system reliability. The high-frequency signal transmission in 5G communication equipment depends on the stability of the connector. The automotive battery connector needs to withstand long-term vibration and temperature changes. With the miniaturization and high performance of the equipment, accurate testing of the connector plug-in life has become a key link in ensuring product quality.
[0003] At present, traditional high-speed connector plug-in and pull-out life simulation testers mostly adopt a fixed plug-in and pull-out force design. As the number of plug-in and pull-out times increases, high-speed connectors will experience performance degradation such as wear and elasticity changes, and the fixed force value is difficult to maintain effective contact, resulting in deviations in the simulation test results. Since it is impossible to dynamically adjust the contact force in real time and maintain the rationality of the test conditions, the test accuracy is insufficient and it is difficult to truly simulate the plug-in and pull-out life under complex working conditions. At the same time, most devices rely on fixed error thresholds for fault judgment, which is prone to misjudgment or missed judgment due to instantaneous interference, affecting the reliability of the plug-in life simulation test.
[0004] Therefore, a high-speed connector plug-in life simulation test machine is proposed to solve the above problems. Summary of the invention
[0005] The main purpose of the present invention is to provide a high-speed connector plug-in life simulation tester to solve the problems raised in the above background.
[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a high-speed connector plug-in life simulation test machine, the high-speed connector plug-in life simulation test machine includes a high-speed connector plug-in life simulation test system, the high-speed connector plug-in life simulation test system includes an information collection end, a data calculation end, a data judgment end, and a data processing end;
[0007] The information acquisition end is used to collect the contact force value, temperature value and acceleration value of the plug-in board end of the high-speed connector during the plug-in and unplugging process of the test equipment through the sensor in real time, and to record the number of control quantity increment calculations within the cycle time in real time through the timer;
[0008] The data calculation end is used to receive the real-time target force value, temperature value and acceleration value in real time to calculate the comprehensive contact force error value; and to calculate the control amount increment of the driving motor in the test equipment in real time through the compensation algorithm;
[0009] The data judgment end receives the number of control quantity increment calculations within the real-time recording cycle time, calculates the adjustment frequency of the control quantity increment, and receives the comprehensive contact force error value in real time, and makes a comprehensive comparison between the contact force error value and the adjustment frequency and the error threshold and the frequency threshold to judge whether the high-speed connector is faulty;
[0010] The data processing end is used to receive fault information, stop the test equipment in time and issue an audible and visual alarm, automatically generate a report according to a preset template through LabVIEW, and automatically trigger the data reset of the drive motor and sensor.
[0011] Furthermore, the sensors in the information acquisition terminal include a six-dimensional force sensor, a temperature sensor and an acceleration sensor, and the testing equipment includes a plug-in terminal, a high-precision ball screw and a linear guide transmission mechanism.
[0012] Furthermore, the data calculation end includes a receiving unit, an error unit and a compensation unit;
[0013] The receiving unit is used to preprocess and receive the contact force value, temperature value and acceleration value collected in real time through the edge device.
[0014] Furthermore, the error unit is used to calculate the contact force error value between the high-speed connector and the plug-in board end, and the calculation steps are as follows:
[0015] S1: Calculate the target contact force value corrected by temperature data fusion. The calculation formula is as follows:
[0016] ;
[0017] in, Represents the target contact force value after being affected and corrected by temperature; represents the initial contact force value; is the thermal influence coefficient, is the temperature change value collected by the sensor, that is ;
[0018] S2: Calculate the preliminary contact force error value affected by the fusion temperature. The calculation formula is as follows:
[0019] ;
[0020] in, The initial contact force error value representing the effect of fusion temperature, Represents the target contact force value after temperature influence and correction, represents the measured value of contact force;
[0021] S3: Calculate the comprehensive contact force error that incorporates the influence of acceleration. The calculation formula is as follows:
[0022] ;
[0023] in, Represents the comprehensive contact force error value, represents the vibration influence coefficient, Represents the acceleration value.
[0024] Furthermore, the compensation unit is used to calculate the control amount increment of the driving motor in the test equipment through a compensation algorithm: the calculation formula is as follows:
[0025] ;
[0026] in, Represents the control increment at the current moment, and represents the contact force error at the previous moment and the previous two moments, Represents the comprehensive contact force error value, , and They represent the proportional coefficient, integral coefficient and differential coefficient respectively.
[0027] Furthermore, the data judgment end includes a frequency unit and a comprehensive comparison unit;
[0028] The frequency unit is used to adjust the frequency by calculating the control amount increment, and the calculation formula is as follows:
[0029] .
[0030] Furthermore, the comprehensive comparison unit includes a preliminary comparison unit and an auxiliary comparison unit;
[0031] The comprehensive comparison unit is used to receive the comprehensive contact force value error and compare it with a set error threshold, wherein the error threshold is (3N~5N), if the comprehensive contact force value error exceeds the set error threshold for 5 times in a row, it will enter the auxiliary comparison, if it does not exceed it, it will be tested normally.
[0032] Furthermore, the auxiliary comparison is used to compare the adjustment frequency of the control quantity increment with the set frequency threshold, and the adjustment frequency is set to (5-8) times / second. If the comprehensive contact force value error exceeds the set error threshold by 5 times and the adjustment frequency of the control quantity increment exceeds the set adjustment frequency, it means that the high-speed connector has a fault and enters the data processing end.
[0033] Furthermore, the data processing end includes an alarm unit, a generation unit and a reset unit.
[0034] Furthermore, the alarm unit is used to shut down the test equipment, give an audible and visual alarm, and give a prompt through a personal terminal;
[0035] The generating unit automatically generates a report according to a preset template through LabVIEW, and the generated report includes a test cycle diagram, a target force value curve diagram, an error statistics diagram and a fault judgment result;
[0036] The reset unit is used to trigger an automatic reset program through LabVIEW to reset the data of the drive motor and the sensor.
[0037] The present invention has the following beneficial effects:
[0038] 1. In the present invention, in the information collection end, multi-dimensional data of the plug-in board end during the plug-in and unplugging process of the high-speed connector is collected in real time by sensors. In the data calculation end, the comprehensive contact force error is comprehensively calculated by the multi-dimensional data, and the control amount increment of the drive motor is calculated in real time based on the contact force error. The input of the drive motor is adjusted in real time by the control amount increment to achieve accurate compensation of the contact force value, maintain the rationality of the test conditions, ensure that the test equipment can still maintain high-precision control under complex working conditions, and improve the reliability of the plug-in life simulation test results.
[0039] 2. In the present invention, in the data judgment end, the adjustment frequency of the control quantity increment is calculated to quantify the adjustment of the drive motor control quantity, which helps to understand the frequency of adjustment of the drive motor control quantity when the adjustment contact force reaches a preset value. At the same time, the preliminary comparison first compares the comprehensive contact force value error with the error threshold. Only when the error exceeds the set threshold, the auxiliary comparison is entered, and further judgment is made in combination with the adjustment frequency to avoid unnecessary calculations and judgments, thereby improving the operating efficiency of the system. In addition, judgment is made by combining the two parameters of the comprehensive contact force value error and the adjustment frequency to comprehensively reflect the actual working status of the high-speed connector. Only when both exceed the set threshold is the faulty connector determined to be faulty, thereby improving the reliability of the high-speed connector plug-in and plug-out life test.
[0040] 3. In the data processing end of the present invention, when a fault is detected, the test equipment is immediately terminated and an audible and visual alarm is given, and a prompt is given through a personal terminal to ensure the safety of the test process. At the same time, the LabVIEW module is used to automatically generate multiple data reports without manual intervention, which significantly reduces the data processing time and facilitates the analysis of the high-speed connector plug-in life test. The automatic reset program is started to clear the drive motor and sensor data to ensure that the initial conditions of each test are consistent, eliminate the interference of residual data on subsequent experiments, and improve the repeatability and accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS
[0041] Figure 1This is a flow chart of a high-speed connector plug-in life simulation test machine of the present invention;
[0042] Figure 2 This is a data calculation end flow chart of a high-speed connector plug-in life simulation test machine of the present invention;
[0043] Figure 3 This is a data judgment end flow chart of a high-speed connector plug-in life simulation test machine of the present invention;
[0044] Figure 4 The present invention is a data processing end flow chart of a high-speed connector plug-in life simulation test machine. DETAILED DESCRIPTION
[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.
[0046] Implementation
[0047] See also Figure 1 and Figure 2 , the present invention provides a technical solution: a high-speed connector plug-in life simulation test machine, the high-speed connector plug-in life simulation test machine includes a high-speed connector plug-in life simulation test system, the high-speed connector plug-in life simulation test system includes an information collection end, a data calculation end, a data judgment end, and a data processing end;
[0048] The information collection end is used to collect the contact force value, temperature value and acceleration value of the plug-in board end of the high-speed connector during the plug-in and unplugging process of the test equipment through sensors in real time, and to record the number of control quantity increment calculations within the cycle time in real time through a timer;
[0049] The data calculation end is used to receive the real-time target force value, temperature value and acceleration value in real time to calculate the comprehensive contact force error value; and calculate the control amount increment of the driving motor in the test equipment in real time through the compensation algorithm;
[0050] The data judgment end receives the number of control quantity increment calculations within the real-time recording cycle time, calculates the adjustment frequency of the control quantity increment, and receives the comprehensive contact force error value in real time. It compares the contact force error value and the adjustment frequency with the error threshold and the frequency threshold to judge whether the high-speed connector is faulty.
[0051] The data processing end is used to receive fault information, stop the test equipment in time and issue an audible and visual alarm, automatically generate a report according to a preset template through LabVIEW, and automatically trigger the data reset of the drive motor and sensor.
[0052] The sensors in the information collection end include six-dimensional force sensors, temperature sensors and acceleration sensors, and the testing equipment includes plug-in ends, high-precision ball screws and linear guide transmission mechanisms.
[0053] The data calculation end includes a receiving unit, an error unit and a compensation unit;
[0054] The receiving unit is used to preprocess and receive the contact force value, temperature value and acceleration value collected in real time through the edge device.
[0055] The error unit is used to calculate the contact force error value between the high-speed connector and the plug-in board. The calculation steps are as follows:
[0056] S1: Calculate the target contact force value corrected by temperature data fusion. The calculation formula is as follows:
[0057] ;
[0058] in, Represents the target contact force value after being affected and corrected by temperature; represents the initial contact force value; is the thermal influence coefficient, is the temperature change value collected by the sensor, that is ;
[0059] S2: Calculate the preliminary contact force error value affected by the fusion temperature. The calculation formula is as follows:
[0060] ;
[0061] in, The initial contact force error value representing the effect of fusion temperature, Represents the target contact force value after temperature influence and correction, represents the measured value of contact force;
[0062] S3: Calculate the comprehensive contact force error that incorporates the influence of acceleration. The calculation formula is as follows:
[0063] ;
[0064] in, Represents the comprehensive contact force error value, represents the vibration influence coefficient, Represents the acceleration value.
[0065] The compensation unit is used to calculate the control quantity increment of the drive motor in the test equipment through the compensation algorithm: the calculation formula is as follows:
[0066] ;
[0067] in, Represents the control increment at the current moment, and represents the contact force error at the previous moment and the previous two moments, Represents the comprehensive contact force error value, , and They represent the proportional coefficient, integral coefficient and differential coefficient respectively.
[0068] Specifically, in the information collection end, the real-time temperature and initial temperature of the plug board end are collected through the temperature sensor, the acceleration value A of the plug board end is collected in real time through the acceleration sensor, and the contact force measured value of the plug board end is collected in real time through the six-dimensional force sensor. , the timer records the control quantity increment in each statistical cycle (1 second) in real time The number of calculations and outputs, for example, each time the algorithm completes a When calculating and outputting to the servo motor, the counter value is increased by 1, and the control amount is increased at the same time It is used to dynamically adjust the driving current or voltage of the motor. The plug-in board end is in direct contact with the high-speed connector and is the execution terminal of the plug-in and pull-out action. It is responsible for simulating the actual plug-in and pull-out scene. The high-precision ball screw and linear guide transmission mechanism are used as power transmission and motion guiding components to convert the rotational motion of the drive motor into precise linear motion, providing stable and high-precision displacement drive for the plug-in board end, ensuring the smoothness and positioning accuracy of the plug-in and pull-out action.
[0069] In this embodiment: in the data acquisition end, the contact force value, temperature value and acceleration value of the plug board end during the plug-in and unplugging process of the high-speed connector are collected in real time through a six-dimensional force sensor, a temperature sensor and an acceleration sensor, providing multi-dimensional data support for subsequent analysis. At the same time, the timer records the number of control quantity increment calculations within the cycle time in real time, accurately tracks the dynamic adjustment frequency of the test process, ensures the timing and integrity of the test data, and facilitates the subsequent analysis of the execution efficiency of the control strategy;
[0070] At the information collection end, the target contact force value is corrected according to the temperature data, and then combined with the influence of acceleration, the temperature and vibration data are integrated in steps to comprehensively calculate the comprehensive contact force error, avoid error deviation caused by a single factor, and better fit the actual plugging and unplugging of high-speed connectors. Then, based on the contact force error, the control quantity increment of the drive motor is calculated in real time, and the input of the drive motor is adjusted in real time according to the control quantity increment to achieve accurate compensation of the contact force value, maintain the rationality of the test conditions, ensure that the test equipment can still maintain high-precision control under complex working conditions, and improve the reliability of the test results.
[0071] Implementation II
[0072] See also Figure 1 and Figure 3 , the present invention provides a technical solution: a high-speed connector plug-in life simulation test machine, the high-speed connector plug-in life simulation test machine includes a high-speed connector plug-in life simulation test system, the high-speed connector plug-in life simulation test system includes an information collection end, a data calculation end, a data judgment end, and a data processing end;
[0073] The information collection end is used to collect the contact force value, temperature value and acceleration value of the plug-in board end of the high-speed connector during the plug-in and unplugging process of the test equipment through sensors in real time, and to record the number of control quantity increment calculations within the cycle time in real time through a timer;
[0074] The data calculation end is used to receive the real-time target force value, temperature value and acceleration value in real time to calculate the comprehensive contact force error value; and calculate the control amount increment of the driving motor in the test equipment in real time through the compensation algorithm;
[0075] The data judgment end receives the number of control quantity increment calculations within the real-time recording cycle time, calculates the adjustment frequency of the control quantity increment, and receives the comprehensive contact force error value in real time. It compares the contact force error value and the adjustment frequency with the error threshold and the frequency threshold to judge whether the high-speed connector is faulty.
[0076] The data processing end is used to receive fault information, stop the test equipment in time and issue an audible and visual alarm, automatically generate a report according to a preset template through LabVIEW, and automatically trigger the data reset of the drive motor and sensor.
[0077] The data judgment end includes a frequency unit and a comprehensive comparison unit;
[0078] The frequency unit is used to adjust the frequency by calculating the control amount increment. The calculation formula is as follows:
[0079] .
[0080] The comprehensive comparison unit includes a preliminary comparison unit and an auxiliary comparison unit;
[0081] The comprehensive comparison unit is used to receive the comprehensive contact force value error and compare it with the set error threshold. The error threshold is (3N~5N), if the comprehensive contact force value error exceeds the set error threshold for 5 times in a row, it will enter the auxiliary comparison, if it does not exceed it, it will be tested normally.
[0082] The auxiliary comparison is used to compare the adjustment frequency of the control quantity increment with the set frequency threshold. The adjustment frequency is set to (5-8) times / second. If the comprehensive contact force value error exceeds the set error threshold by 5 times and the adjustment frequency of the control quantity increment exceeds the set adjustment frequency, it means that the high-speed connector has a fault and enters the data processing end.
[0083] Specifically, in the comprehensive comparison unit, the setting ranges of the error threshold and the frequency threshold are obtained by referring to relevant industry standards and previous engineering experience, combined with the specific conditions and test requirements of this testing machine, and after repeated tests and optimization.
[0084] For ease of understanding, the following is an example description.
[0085] When an abnormal fault occurs in the high-frequency connector during the plug-in process, the comprehensive contact force value will continue to exceed the set threshold, and the compensation unit needs to calculate the control quantity increment at high frequency. To quickly adjust the response;
[0086] When the high-number connector is not abnormal during the board insertion process, the comprehensive contact force value error is small and stable, and the compensation unit increases the control amount. The demand is reduced and the adjustment frequency is reduced.
[0087] In this embodiment, in the data judgment end, the adjustment situation of the control amount of the driving motor is quantified by calculating the adjustment frequency of the control amount increment, which helps to understand the frequency of adjustment of the control amount of the driving motor when the adjustment contact force reaches the preset value. At the same time, the preliminary comparison is first compared between the comprehensive contact force value error and the error threshold. Only when the error exceeds the set threshold, the auxiliary comparison is entered, and further judgment is made in combination with the adjustment frequency to avoid unnecessary calculations and judgments, thereby improving the operation efficiency of the system. In addition, the judgment is made by combining the two parameters of the comprehensive contact force value error and the adjustment frequency to comprehensively reflect the actual working status of the high-speed connector. Only when both exceed the set threshold is the faulty connector determined to be faulty, thereby improving the reliability of the high-speed connector plug-in and plug-out life test.
[0088] Implementation Three
[0089] See also Figure 1 and Figure 4, the present invention provides a technical solution: a high-speed connector plug-in life simulation test machine, the high-speed connector plug-in life simulation test machine includes a high-speed connector plug-in life simulation test system, the high-speed connector plug-in life simulation test system includes an information collection end, a data calculation end, a data judgment end, and a data processing end;
[0090] The information collection end is used to collect the contact force value, temperature value and acceleration value of the plug-in board end of the high-speed connector during the plug-in and unplugging process of the test equipment through sensors in real time, and to record the number of control quantity increment calculations within the cycle time in real time through a timer;
[0091] The data calculation end is used to receive the real-time target force value, temperature value and acceleration value in real time to calculate the comprehensive contact force error value; and calculate the control amount increment of the driving motor in the test equipment in real time through the compensation algorithm;
[0092] The data judgment end receives the number of control quantity increment calculations within the real-time recording cycle time, calculates the adjustment frequency of the control quantity increment, and receives the comprehensive contact force error value in real time. It compares the contact force error value and the adjustment frequency with the error threshold and the frequency threshold to judge whether the high-speed connector is faulty.
[0093] The data processing end is used to receive fault information, stop the test equipment in time and issue an audible and visual alarm, automatically generate a report according to a preset template through LabVIEW, and automatically trigger the data reset of the drive motor and sensor.
[0094] The data processing end includes an alarm unit, a generation unit and a reset unit.
[0095] The alarm unit is used to shut down the test equipment, give sound and light alarms, and provide prompts through personal terminals;
[0096] The generation unit automatically generates a report according to a preset template through LabVIEW, and the generated report includes a test cycle diagram, a target force value curve diagram, an error statistics diagram, and a fault judgment result;
[0097] The reset unit is used to trigger the automatic reset program through LabVIEW to reset the data of the drive motor and sensor.
[0098] In this embodiment, at the data processing end, when a fault is detected, the test equipment is immediately terminated and an audible and visual alarm is given, and a prompt is given through the personal terminal to ensure the safety of the test process. At the same time, the LabVIEW module is used to automatically generate multiple data reports without manual intervention, which significantly reduces the data processing time and facilitates the analysis of the high-speed connector plug-in life test. The automatic reset program is started to clear the drive motor and sensor data to ensure that the initial conditions of each test are consistent, eliminate the interference of residual data on subsequent experiments, and improve the repeatability and accuracy of the test results.
[0099] In the present invention, a high-speed connector plug-in life simulation test machine is provided. The high-speed connector plug-in life simulation test system is applied to the high-speed connector plug-in life simulation test machine. In the data acquisition end, the contact force value, temperature value and acceleration value of the plug board end during the plug-in process of the high-speed connector are collected in real time through a six-dimensional force sensor, a temperature sensor and an acceleration sensor, providing multi-dimensional data support for subsequent analysis. At the same time, the timer records the number of control quantity increment calculations within the cycle time in real time, accurately tracks the dynamic adjustment frequency of the test process, ensures the timing and integrity of the test data, and facilitates the subsequent analysis of the execution efficiency of the control strategy.
[0100] At the information collection end, the target contact force value is corrected according to the temperature data, and then combined with the influence of acceleration, the temperature and vibration data are integrated in steps to comprehensively calculate the comprehensive contact force error, avoid the error deviation caused by a single factor, and better fit the actual plugging and unplugging of high-speed connectors. Then, the control amount increment of the drive motor is calculated in real time based on the contact force error, and the input of the drive motor is adjusted in real time according to the control amount increment to achieve accurate compensation of the contact force value, maintain the rationality of the test conditions, ensure that the test equipment can still maintain high-precision control under complex working conditions, and improve the reliability of the test results;
[0101] In the data judgment end, by calculating the adjustment frequency of the control quantity increment, the adjustment of the drive motor control quantity is quantified, which helps to understand the frequency of adjustment of the drive motor control quantity when the adjustment contact force reaches the preset value. At the same time, the preliminary comparison first compares the comprehensive contact force value error with the error threshold. Only when the error exceeds the set threshold, it enters the auxiliary comparison, and further combines the adjustment frequency for judgment to avoid unnecessary calculations and judgments, thereby improving the operation efficiency of the system. In addition, the judgment is made by combining the two parameters of the comprehensive contact force value error and the adjustment frequency, which fully reflects the actual working status of the high-speed connector. Only when both exceed the set threshold, the faulty connector is judged to be faulty, thereby improving the reliability of the plug-in and unplug life test of the high-speed connector.
[0102] At the data processing end, when a fault is detected, the test equipment is immediately terminated and an audible and visual alarm is sounded, and a prompt is given through the personal terminal to ensure the safety of the test process. At the same time, the LabVIEW module is used to automatically generate multiple data reports without manual intervention, which significantly reduces data processing time and facilitates the analysis of high-speed connector plug-in life tests. The automatic reset program is started to clear the drive motor and sensor data to ensure that the initial conditions of each test are consistent, eliminate the interference of residual data on subsequent experiments, and improve the repeatability and accuracy of the test results.
[0103] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0104] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A high-speed connector plug-in life simulation test machine, characterized in that: The high-speed connector plug-in life simulation test machine includes a high-speed connector plug-in life simulation test system, and the high-speed connector plug-in life simulation test system includes an information collection end, a data calculation end, a data judgment end, and a data processing end; The information acquisition end is used to collect the contact force value, temperature value and acceleration value of the plug-in board end of the high-speed connector during the plug-in and unplugging process of the test equipment through the sensor in real time, and to record the number of control quantity increment calculations within the cycle time in real time through the timer; The data calculation end is used to receive the real-time target force value, temperature value and acceleration value in real time to calculate the comprehensive contact force error value; and to calculate the control amount increment of the driving motor in the test equipment in real time through the compensation algorithm; The data judgment end receives the number of control quantity increment calculations within the real-time recording cycle time, calculates the adjustment frequency of the control quantity increment, and receives the comprehensive contact force error value in real time, and makes a comprehensive comparison between the contact force error value and the adjustment frequency and the error threshold and the frequency threshold to judge whether the high-speed connector is faulty; The data processing end is used to receive fault information, stop the test equipment in time and issue an audible and visual alarm, and automatically generate a report according to a preset template through LabVIEW, and automatically trigger the reset and clearing of the data of the drive motor and the sensor; The data calculation end includes a receiving unit, an error unit and a compensation unit; The receiving unit is used to pre-process and receive the contact force value, temperature value and acceleration value collected in real time through the edge device; The compensation unit is used to calculate the control amount increment of the driving motor in the test equipment through a compensation algorithm: the calculation formula is as follows: ; in, Represents the control increment at the current moment, and represents the contact force error at the previous moment and the previous two moments, Represents the comprehensive contact force error value, , and They represent the proportional coefficient, integral coefficient and differential coefficient respectively.
2. A high-speed connector plug-in life simulation test machine according to claim 1, characterized in that: The sensors in the information acquisition end include a six-dimensional force sensor, a temperature sensor and an acceleration sensor, and the testing equipment includes a plug-in end, a high-precision ball screw and a linear guide transmission mechanism.
3. A high-speed connector plug-in life simulation test machine according to claim 1, characterized in that: The error unit is used to calculate the contact force error value between the high-speed connector and the plug-in board end, and the calculation steps are as follows: S1: Calculate the target contact force value corrected by temperature data fusion. The calculation formula is as follows: ; in, Represents the target contact force value after being affected and corrected by temperature; represents the initial contact force value; is the thermal influence coefficient, is the temperature change value collected by the sensor, that is ; S2: Calculate the preliminary contact force error value affected by the fusion temperature. The calculation formula is as follows: ; in, represents the preliminary contact force error value due to the influence of fusion temperature, where The initial contact force error value representing the effect of fusion temperature, represents the measured value of contact force; S3: Calculate the comprehensive contact force error that incorporates the influence of acceleration. The calculation formula is as follows: ; in, Represents the comprehensive contact force error value, represents the vibration influence coefficient, Represents the acceleration value.
4. A high-speed connector plug-in life simulation test machine according to claim 1, characterized in that: The data judgment end includes a frequency unit and a comprehensive comparison unit; The frequency unit is used to adjust the frequency by calculating the control amount increment, and the calculation formula is as follows: 。 5. A high-speed connector plug-in life simulation test machine according to claim 4, characterized in that: The comprehensive comparison unit includes a preliminary comparison unit and an auxiliary comparison unit; The comprehensive comparison unit is used to receive the comprehensive contact force value error and compare it with a set error threshold, wherein the error threshold is (3N~5N), if the comprehensive contact force value error exceeds the set error threshold for 5 times in a row, it will enter the auxiliary comparison, if it does not exceed it, it will be tested normally.
6. A high-speed connector plug-in life simulation test machine according to claim 5, characterized in that: The auxiliary comparison is used to compare the adjustment frequency of the control amount increment with the set frequency threshold. The adjustment frequency is set to (5-8) times / second. If the comprehensive contact force value error exceeds the set error threshold by 5 times and the adjustment frequency of the control amount increment exceeds the set adjustment frequency, it means that the high-speed connector has a fault and enters the data processing end.
7. A high-speed connector plug-in life simulation test machine according to claim 1, characterized in that: The data processing end includes an alarm unit, a generation unit and a reset unit.
8. A high-speed connector plug-in life simulation test machine according to claim 7, characterized in that: The alarm unit is used to shut down the test equipment, give an audible and visual alarm, and prompt through a personal terminal; The generating unit automatically generates a report according to a preset template through LabVIEW, and the generated report includes a test cycle diagram, a target force value curve diagram, an error statistics diagram and a fault judgment result; The reset unit is used to trigger an automatic reset program through LabVIEW to reset the data of the drive motor and the sensor.
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