CN117129786A - Servo driver comprehensive test system - Google Patents
Servo driver comprehensive test system Download PDFInfo
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- CN117129786A CN117129786A CN202311111740.8A CN202311111740A CN117129786A CN 117129786 A CN117129786 A CN 117129786A CN 202311111740 A CN202311111740 A CN 202311111740A CN 117129786 A CN117129786 A CN 117129786A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The invention relates to the technical field of artificial intelligence, and provides a comprehensive test system of a servo driver, which comprises a test information importing module, a test data collecting module, a test data processing module, a test result evaluation index calculating module, a test result judging module, a test result feedback module and a test result feedback module, wherein the test information importing module imports test information, and the test data are subjected to regional division according to test cases, the test data collecting module collects test data by using test equipment, the test data are preprocessed by the test data processing module to obtain various parameters of the test of the servo driver, the test process analyzing module analyzes according to the parameters in the test process to obtain conversion efficiency coefficients and speed response coefficients of voltage, the test evaluation index calculating module calculates the test evaluation index, and the test result judging module diagnoses the test result according to the test evaluation index. Through the technical scheme, the problem that missed detection possibly occurs during testing in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of artificial intelligence, in particular to a comprehensive test system for a servo driver.
Background
In recent years, along with the development of power electronic technology and digital control system theory, a digital servo system adopting a semiconductor conversion technology is widely applied to various military and civil equipment, a servo driver is taken as an important component part in the digital servo system, and the possibility of faults is unavoidable due to various reasons in operation, so that the servo driver is tested to judge whether the servo driver can normally work, thereby improving the safety and reliability of equipment operation, providing a basis for equipment guarantee maintenance, and the servo driver is already applied to an automatic test technology, and the state of the servo driver is accurately determined by collecting, conditioning and analyzing relevant state parameters of the servo driver, so that fault diagnosis can be completed;
however, the above procedure still has the following drawbacks:
1. when a tester tests, the tester needs to manually input test data and then classify and store the test data, so that a great amount of time is wasted, and the error condition of data input can be caused by excessive test data;
2. in the testing process, a tester needs to analyze the testing result, the condition of missing testing or false testing possibly occurs, the result after the testing is finished is tidied into a testing report, the testing result of each stage is stored, meanwhile, the condition of losing the testing result with long testing time possibly occurs, the testing problem can not be intelligently analyzed by testing, and the energy of the tester can be wasted.
Disclosure of Invention
The invention provides a comprehensive test system for a servo driver, which solves the problem that the test in the related art is likely to be missed.
The technical scheme of the invention is as follows: a comprehensive test system for servo driver is disclosed,
test information importing module: before the test starts, the corresponding test environment is input, the test cases are imported, the region division is carried out according to different test cases, and the test data tested by the different test cases are classified and stored according to the region;
test data acquisition module: the testing device is used for connecting the testing device with the computer interface, transmitting the electric signal to the computer end to form a digital signal, converting the digital signal into an analog signal, collecting the testing data in the testing process, and transmitting the testing data to the testing data processing module;
test data processing module: based on preprocessing the test data, obtaining the change rate of voltage input, the load change rotating speed adjustment rate, the rotating speed change rate and the pulse sending frequency;
the test process analysis module: based on analysis of the test data, a conversion efficiency coefficient and a speed response coefficient of the voltage are obtained;
the test evaluation index calculation module: the test process analysis module is used for analyzing the relevant state parameters of the servo driver to obtain a test evaluation index;
and a test result judging module: the method comprises the steps of judging a test result of a servo driver through a calculated test evaluation index, checking whether the working performance of the servo driver is normal, testing the servo driver to detect abnormal problems, and marking the abnormal problems according to the area;
and a test result feedback module: the method is used for feeding back the measured test result to the tester, integrating the test result, automatically generating a test report, storing the test report according to the test time, and simultaneously calling the test result by the tester at any time.
Preferably, the test information importing module is used for importing the test cases after uniformly setting the test environment before testing, dividing the regions according to the test types of the test cases, numbering 1,2,3 and … … i, and storing the test data in the subsequent test process according to the regions.
Preferably, the data acquisition module is connected with the computer interface by utilizing the signal generator, detects an electric signal input into the servo driver during working, acquires test data in real time by utilizing the signal generator during testing, and displays the detection result and the working state of each parameter during testing of the servo driver at the computer end.
Preferably, the test data processing module extracts the collected test data and performs pretreatment at the same time to obtain various parameter data including the change rate of voltage input, the change rate of rotation speed and the pulse sending frequency when the servo driver works;
the change rate of the voltage input is used for detecting the working state of the power supply, and whether the power supply has problems or not is detected through multiple tests, and the calculation formula is as followsV 1 Representing the measured output voltage at standard voltage input and rated load, V 2 The upper limit of the input voltage and the output voltage under the rated load are measured, V 3 Measuring output voltage under the lower limit of input voltage and rated load;
the load change speed regulation rate refers to that the load change rate is inversely proportional to the change of the power supply output, the load is increased, the power supply output is reduced, otherwise, the power supply output is increased, and the calculation formula is as followsm represents the current load, n represents the reference load;
the rotating speed change rate refers to the speed change rate or the speed inequality rate of a servo driver regulating system, and the calculating formula is as followsd max D is the corresponding maximum rotation speed min The minimum rotating speed corresponding to rated load is set, and c is the rated rotating speed; the pulse sending frequency refers to the number of effective discharge times occurring in the discharge gap in unit time, and the calculation formula isT is denoted as the period of the pulse.
Preferably, the test process analysis module is used for analyzing each item of parameter data of the servo driver during working after test data preprocessing to obtain a conversion efficiency coefficient and a speed response coefficient of voltage, and calculating the conversion efficiency coefficient and the speed response coefficient;
the conversion efficiency coefficient of the voltage is calculated by the change rate eta of the voltage input, the load change rotating speed adjustment rate a and the time t of the voltage input to obtain the conversion efficiency coefficient of the voltage
The velocity response coefficientn is an n-order function and t is the pulse transmission frequency.
Preferably, the test evaluation index is used for diagnosing the test result of the servo driver, and the calculation formula is as followsAnd evaluating the test result of the servo driver through the test evaluation index.
Preferably, the test result judging module intuitively displays the difference between the test result and the test standard value through the test evaluation index, so as to diagnose the problem of the test result and diagnose the fault source according to the problem; the test standard value refers to a result obtained by testing and analyzing a normal servo driver, and is used as a test standard for measuring the servo driver.
Preferably, the test result feedback module generates a test report from the measured result, automatically stores and backs up the test result according to the test time, and feeds back the test result to a tester, and the tester can check the test report of each test stage at any time.
The working principle and the beneficial effects of the invention are as follows:
according to the invention, the test information is imported through the test information importing module, the region is divided according to the test case, the test data is acquired by the test data acquisition module, the test data is preprocessed through the test data processing module, so that various parameters tested by the servo driver are obtained, calculation is carried out on the parameters, the conversion efficiency coefficient and the speed response coefficient of the voltage are obtained through analysis according to the parameters in the test process, the test evaluation index is calculated through the test evaluation index calculation module, the test result is diagnosed through the test result judging module according to the test evaluation index, the abnormal problem which is tested is marked, finally, the measured result is fed back to the tester through the test result feedback module, and meanwhile, a test report is generated, so that the tester can conveniently check the test result at any time; the test data can be conveniently stored, the time that a tester needs to manually input the test data is saved, meanwhile, the test problem can be intelligently analyzed, the problem in the test process is prevented from being missed, a test report can be automatically generated for automatic storage, the energy of the tester is saved, and the test becomes more accurate.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic flow chart of the present invention;
Detailed Description
The embodiments of the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which configurations of the embodiments are shown by way of illustration only, and a servo drive integrated test system according to the present invention is not limited to the configurations shown in the embodiments, but all other embodiments obtained by a person skilled in the art without any inventive effort are within the scope of the present invention.
The invention provides a comprehensive test system of a servo driver, which comprises:
test information importing module: before the test starts, the corresponding test environment is input, the test cases are imported, the region division is carried out according to different test cases, and the test data tested by the different test cases are classified and stored according to the region.
In this embodiment, the test information importing module is to uniformly set a test environment before testing, import a test case, divide regions according to a test type to which the test case belongs, number 1,2,3, … … i, and store test data in a subsequent test process according to regions.
The method has the advantages that the test environment and the test case are imported before the test by the test information importing module, so that stability and consistency of test results are guaranteed, test time is saved, and the situation that test data are wrong due to inconsistent test environments is prevented, so that the test results are affected.
Test data acquisition module: the testing device is used for connecting the testing device with the computer interface, transmitting the electric signal to the computer end to form a digital signal, converting the digital signal into an analog signal, collecting the testing data in the testing process, and transmitting the testing data to the testing data processing module.
In this embodiment, the data acquisition module is connected to the computer interface by using a signal generator, and detects an electrical signal input into the servo driver during operation, and during testing, the signal generator acquires test data in real time, and displays a detection result and an operation state of each parameter during testing of the servo driver at a computer end.
The test device is connected with the computer interface to collect test data, so that the influence of external environment on the test data is avoided, the collected data is more accurate, the effect of collecting and processing the test data can be achieved, and the data processing time is saved.
Test data processing module: based on preprocessing the test data, the change rate of voltage input, the load change rotating speed adjustment rate, the rotating speed change rate and the pulse sending frequency are obtained.
In this embodiment, the test data processing module extracts the collected test data and performs preprocessing at the same time to obtain various parameter data including a change rate of voltage input, a change rate of rotation speed and a pulse sending frequency when the servo driver works;
the change rate of the voltage input is used for detecting the working state of the power supply, and whether the power supply has problems or not is detected through multiple tests, and the calculation formula is as followsV 1 Representing the measured output voltage at standard voltage input and rated load, V 2 The upper limit of the input voltage and the output voltage under the rated load are measured, V 3 Measuring output voltage under the lower limit of input voltage and rated load;
the load change speed regulation rate refers to that the load change rate is inversely proportional to the change of the power supply output, the load is increased, the power supply output is reduced, otherwise, the power supply output is increased, and the calculation formula is as followsm represents the current load, n represents the reference load;
the rotating speed change rate refers to the speed change rate or the speed inequality rate of a servo driver regulating system, and the calculating formula is as followsd max D is the corresponding maximum rotation speed min The minimum rotating speed corresponding to rated load is set, and c is the rated rotating speed;
the pulse sending frequency refers to the number of effective discharge times occurring in the discharge gap in unit time, and the calculation formula isT is denoted as the period of the pulse.
The method has the advantages that the change condition of each working parameter of the servo driver extracted in the test process is obtained through processing and processing of test data, so that whether the working state of the servo driver is normal or not is reflected, the data of multiple tests are preprocessed, the subsequent analysis of the test is facilitated, and the time for data analysis is saved.
The test process analysis module: and based on analysis of the test data, obtaining a conversion efficiency coefficient and a speed response coefficient of the voltage.
In this embodiment, the test process analysis module analyzes each item of parameter data of the servo driver after test data preprocessing during operation, obtains a conversion efficiency coefficient and a speed response coefficient of voltage, and calculates the conversion efficiency coefficient and the speed response coefficient;
the conversion efficiency coefficient of the voltage is calculated by the change rate eta of the voltage input, the load change rotating speed adjustment rate a and the time t of the voltage input to obtain the conversion efficiency coefficient of the voltage
The velocity response coefficientn is an n-order function and t is the pulse transmission frequency.
The method is characterized in that the processed test data are analyzed, the conversion efficiency coefficient and the speed response coefficient of the obtained voltage are further deduced, the abnormal problem can be accurately positioned, the position of the abnormal problem can be rapidly found, and meanwhile, a basis is provided for guaranteeing and maintaining of a follow-up servo driver.
The test evaluation index calculation module: the test evaluation index is further deduced through relevant state parameters of the servo driver analyzed by the test process analysis module.
In this embodiment, the test evaluation index is used for diagnosing the test result of the servo driver, and the calculation formula is as followsAnd evaluating the test result of the servo driver through the test evaluation index.
And a test result judging module: and the method is used for judging the test result of the servo driver through the calculated test evaluation index, checking whether the working performance of the servo driver is normal, and marking the abnormal problem tested by the test of the servo driver according to the area.
In this embodiment, the test result judging module intuitively displays the difference between the test result and the test standard value through the test evaluation index, so as to diagnose the problem occurring in the test result and diagnose the fault source according to the problem; the test standard value refers to a result obtained by testing and analyzing a normal servo driver, and is used as a test standard for measuring the servo driver.
The method has the advantages that the test results of all the areas are analyzed through the test evaluation indexes, the working state of the servo driver can be directly reflected, the servo driver is positioned and marked under the abnormal condition during working, the tested problems can be quickly found, and the test time of a tester is saved.
And a test result feedback module: the method is used for feeding back the measured test result to the tester, integrating the test result, automatically generating a test report, storing the test report according to the test time, and simultaneously calling the test result by the tester at any time.
In this embodiment, the test result feedback module generates a test report from the measured result, automatically stores and backs up the test report according to the test time, and feeds back the test report to a tester, which can check the test report of each test stage at any time.
The test result feedback module is convenient for a tester to quickly feed back the problem, so that the problem can be quickly solved, and the loss in the test process is reduced.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. A servo driver integrated test system, comprising:
test information importing module: before the test starts, the corresponding test environment is input, the test cases are imported, the region division is carried out according to different test cases, and the test data tested by the different test cases are classified and stored according to the region;
test data acquisition module: the testing device is used for connecting the testing device with the computer interface, transmitting the electric signal to the computer end to form a digital signal, converting the digital signal into an analog signal, collecting the testing data in the testing process, and transmitting the testing data to the testing data processing module;
test data processing module: based on preprocessing the test data, obtaining the change rate of voltage input, the load change rotating speed adjustment rate, the rotating speed change rate and the pulse sending frequency;
the test process analysis module: based on analysis of the test data, a conversion efficiency coefficient and a speed response coefficient of the voltage are obtained;
the test evaluation index calculation module: the test process analysis module is used for analyzing the relevant state parameters of the servo driver to obtain a test evaluation index;
and a test result judging module: the method comprises the steps of judging a test result of a servo driver through a calculated test evaluation index, checking whether the working performance of the servo driver is normal, testing the servo driver to detect abnormal problems, and marking the abnormal problems according to the area;
and a test result feedback module: the method is used for feeding back the measured test result to the tester, integrating the test result, automatically generating a test report, storing the test report according to the test time, and simultaneously calling the test result by the tester at any time.
2. The integrated test system of servo driver according to claim 1, wherein the test information importing module is used for uniformly setting a test environment before testing, importing test cases, dividing regions according to test types to which the test cases belong, numbering 1,2,3 and … … i, and storing test data in a subsequent test process according to regions in a classified manner.
3. The integrated test system of claim 1, wherein the data acquisition module is connected with the computer interface by using a signal generator, detects an electric signal input into the servo driver during operation, acquires test data in real time by using the signal generator during test, and displays a detection result and an operation state of each parameter during test of the servo driver at a computer end.
4. The integrated test system of claim 1, wherein the test data processing module extracts collected test data and performs preprocessing simultaneously to obtain various parameter data including a change rate of voltage input, a change rate of rotation speed and a pulse transmission frequency when the servo driver works;
the change rate of the voltage input is used for detecting the working state of the power supply, and whether the power supply has problems or not is detected through multiple tests, and the calculation formula is as followsV 1 Representing the measured output voltage at standard voltage input and rated load, V 2 The upper limit of the input voltage and the output voltage under the rated load are measured, V 3 Measuring output voltage under the lower limit of input voltage and rated load;
the load change speed regulation rate refers to that the load change rate is inversely proportional to the change of the power supply output, the load is increased, the power supply output is reduced, otherwise, the power supply output is increased, and the calculation formula is as followsm represents the current load, n represents the reference load;
the rotating speed change rate refers to the speed change rate or the speed inequality rate of a servo driver regulating system, and the calculating formula is as followsd max D is the corresponding maximum rotation speed min The minimum rotating speed corresponding to rated load is set, and c is the rated rotating speed;
the pulse sending frequency refers to the number of effective discharge times occurring in the discharge gap in unit time, and the calculation formula isT is denoted as the period of the pulse.
5. The integrated test system of servo driver according to claim 1, wherein the test process analysis module is used for analyzing each item of parameter data of the servo driver after test data preprocessing during operation to obtain a conversion efficiency coefficient and a speed response coefficient of voltage, and calculating the conversion efficiency coefficient and the speed response coefficient;
the conversion efficiency coefficient of the voltage is calculated by the change rate eta of the voltage input, the load change rotating speed adjustment rate a and the time t of the voltage input to obtain the conversion efficiency coefficient of the voltage
The velocity response coefficientn is an n-order function and t is the pulse transmission frequency.
6. The integrated test system of claim 1, wherein the test evaluation index is a test result of the servo driver, and the calculation formula isAnd evaluating the test result of the servo driver through the test evaluation index.
7. The integrated test system of claim 1, wherein the test result judging module intuitively displays a difference between a test result and a test standard value through a test evaluation index, so as to diagnose a problem occurring in the test result and diagnose a fault source according to the problem; the test standard value refers to a result obtained by testing and analyzing a normal servo driver, and is used as a test standard for measuring the servo driver.
8. The servo driver comprehensive test system according to claim 1, wherein the test result feedback module generates a test report from the measured result, automatically stores and backs up the test report according to the test time, and feeds back the test report to a tester, and the tester can check the test report of each test stage at any time.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117949041A (en) * | 2024-01-31 | 2024-04-30 | 广州赛孚德电气有限公司 | Quality detection method and device for servo driver |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117949041A (en) * | 2024-01-31 | 2024-04-30 | 广州赛孚德电气有限公司 | Quality detection method and device for servo driver |
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