CN102830296B - Power supply ripple disturbed test method and system - Google Patents
Power supply ripple disturbed test method and system Download PDFInfo
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Abstract
The invention provides a kind of power supply ripple disturbed test method and system, the method comprises: obtain parameter preset, initialization self checking is carried out according to parameter preset and excitation parameters, out-put supply ripple, parameter preset comprises tested point frequency values and the standard electric level values corresponding with tested point frequency values, and excitation parameters comprises the excitation amplitude corresponding with tested point frequency values and fiduciary level output valve; Obtain power supply ripple, device under test is tested, and verifies constantly power supply ripple; This system comprises: initialization self checking module, for obtaining parameter preset, carries out initialization self checking, out-put supply ripple according to parameter preset and excitation parameters; Verification and test module constantly, obtain power supply ripple, device under test is tested, and verifies constantly power supply ripple.The method and system, improve testing efficiency and measuring accuracy effectively, thus, meet the requirement for efficiency and precision in the power supply ripple disturbed test process of vehicle electronics.
Description
Technical field
The present invention relates to a kind of method of testing and system, particularly relate to a kind of power supply ripple disturbed test method and system, belong to electronic communication field.
Background technology
Along with the develop rapidly of auto industry and electronics industry, nowadays increasing vehicle electronics occur commercially.These vehicle electronics, such as, ignition coil, illuminating lamp, pilot lamp, wiper, vehicle window, antenna lifter, GPS (GlobalPositioningSystem, be called for short: GPS) etc., extremely various function is realized at automotive interior, as driving safety function, deixis, anti-theft feature, the controlling functions of driving process and driver's comfort conditioned function and amusement function etc.Now, vehicle electronics play irreplaceable effect improving in vehicle dynamic quality, economy, security, riding stability and riding comfort etc.
But, vehicle electronics due to the overwhelming majority are all obtain power supply by being connected with the power bus of automobile, that is when vehicle travels, vehicle electronics are powered by generator and accumulator parallel connection, so, under normal circumstances, these vehicle electronics are the impacts continuing to be subjected to power supply ripple.Therefore, test these vehicle electronics and whether normally can work under the power supply environment disturbed with ripple, for vehicle electronics quality testing will be extremely important.
Because existing power supply ripple disturbed test system is the integrated of electronic apparatus, electronic devices and components there will be aging when long-time use, therefore can cause the change of its parameter, thus cause the output parameter of power supply ripple disturbed test system inaccurate.But existing power supply ripple disturbed test method is tested vehicle electronics by the ripple of analog power, during in order to ensure initial testing, output parameter is accurate, needs before testing to carry out artificial correction to the output parameter of each measurement point.When testing in a large number, this efficiency that will seriously measure.And, even if carried out correction before testing, due to the many factors of system in test process, if temperature, humidity are for the impact of electronic devices and components, the accurate constantly of output parameter also cannot be ensured.Therefore, existing power supply ripple disturbed test method, also existing cannot auto-initiation self checking and the shortcoming that cannot regulate constantly, result in the problem that testing efficiency is low and measuring accuracy is low, thus, the requirement for efficiency and precision in the power supply ripple disturbed test process of vehicle electronics can not be met.
Summary of the invention
The object of the present invention is to provide a kind of power supply ripple disturbed test method and system, for solving the problem that testing efficiency in prior art is low and measuring accuracy is low, thus meet the requirement for efficiency and precision in the power supply ripple disturbed test process of vehicle electronics.
To achieve these goals, the invention provides a kind of power supply ripple disturbed test method, comprising:
Step 100, acquisition parameter preset, initialization self checking is carried out according to parameter preset and excitation parameters, out-put supply ripple, parameter preset comprises tested point frequency values and the standard electric level values corresponding with tested point frequency values, and excitation parameters comprises the excitation amplitude corresponding with tested point frequency values and fiduciary level output valve;
Step 200, acquisition power supply ripple, device under test is tested, and verifies constantly power supply ripple.
To achieve these goals, the invention provides a kind of power supply ripple disturbed test system, comprising:
Initialization self checking module, for obtaining parameter preset, initialization self checking is carried out according to parameter preset and excitation parameters, out-put supply ripple, parameter preset comprises tested point frequency values and the standard electric level values corresponding with tested point frequency values, and excitation parameters comprises the excitation amplitude corresponding with tested point frequency values and fiduciary level output valve;
Verification and test module constantly, obtain power supply ripple, device under test is tested, and verifies constantly power supply ripple.
Power supply ripple disturbed test method and system provided by the invention, by carrying out initialization self checking according to parameter preset and excitation parameters, reducing artificial operation, improve testing efficiency, and by the verification constantly carried out in the test process of device under test, improve the degree of accuracy of test.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of power supply ripple disturbed test embodiment of the method for the present invention;
Fig. 2 is the schematic flow sheet of step 100 in power supply ripple disturbed test embodiment of the method for the present invention;
Fig. 3 is the schematic flow sheet of step 200 in power supply ripple disturbed test embodiment of the method for the present invention;
Fig. 4 is the schematic flow sheet of the intermediate step of step 110 and step 120 in power supply ripple disturbed test embodiment of the method for the present invention;
Fig. 5 is the schematic flow sheet of the intermediate step of step 100 and step 200 in power supply ripple disturbed test embodiment of the method for the present invention;
Fig. 6 is the structural representation of power supply ripple disturbed test system embodiment of the present invention;
Fig. 7 is the structural representation of the initialization self checking module of power supply ripple disturbed test system embodiment of the present invention;
Fig. 8 is the structural representation of verification and the test module constantly of power supply ripple disturbed test system embodiment of the present invention;
Fig. 9 is the structural representation of another embodiment of power supply ripple disturbed test system of the present invention.
Embodiment
The technical scheme of the embodiment of the present invention is further illustrated below in conjunction with the drawings and specific embodiments.
The invention provides a kind of power supply ripple disturbed test method, Fig. 1 is the schematic flow sheet of power supply ripple disturbed test embodiment of the method for the present invention, and as shown in Figure 1, the method comprises the steps:
Step 100, acquisition parameter preset, initialization self checking is carried out according to parameter preset and excitation parameters, out-put supply ripple, parameter preset comprises tested point frequency values and the standard electric level values corresponding with tested point frequency values, and excitation parameters comprises the excitation amplitude corresponding with tested point frequency values and fiduciary level output valve.User is according to the needs of test, and setting parameter preset, the tested point frequency values of parameter preset can be one or more, and needs to arrange corresponding standard electric level values to each tested point frequency values.The acquisition methods of excitation amplitude can adopt the method for default excitation amplitude table, namely the excitation amplitude corresponding with tested point frequency values and fiduciary level output valve is pre-deposited before testing, after obtaining tested point frequency values and fiduciary level output valve, inquire excitation amplitude.The step 100 of the embodiment of the present invention, obtains above-mentioned parameter preset, and carries out initialization self checking according to parameter preset and excitation parameters, out-put supply ripple.Through above-mentioned initialization self checking process, the error of the standard electric level values that the level value of the power supply ripple of output is corresponding with this tested point frequency values is within 0.01 volt.User also can according to self needs, the error amount that hope is permitted is arranged in parameter preset, when the error of the standard electric level values corresponding with this tested point frequency values when the level value of the power supply ripple exported in self checking process is less than the error amount of the allowance that user is arranged in parameter preset, be defined as being verified, out-put supply ripple.
Step 200, acquisition power supply ripple, device under test is tested, and verifies constantly power supply ripple.In above-mentioned steps, device under test carries out test and power supply ripple and verifies constantly and can synchronously carry out, and also can carry out for asynchronous.Synchronously carry out i.e. device under test when testing, verify constantly simultaneously.Namely asynchronous carrying out need the corresponding standard electric level values of carrying out the tested point frequency values of certain time period in test process or certain limit when device under test to verify constantly according to user.
In sum, power supply ripple disturbed test method provided by the invention, first, carry out initialization self checking according to parameter preset, reduce artificial operation, improve testing efficiency, secondly, verify constantly in the test process of device under test, improve the degree of accuracy of test, therefore, the requirement for efficiency and precision in the power supply ripple disturbed test process of vehicle electronics is met.
Based on above-described embodiment, Fig. 2 is the schematic flow sheet of step 100 in power supply ripple disturbed test embodiment of the method for the present invention.As shown in Figure 2, in power supply ripple disturbed test method provided by the invention, step 100 comprises:
Step 110, acquisition parameter preset, and according to parameter preset and excitation parameters, generate power supply ripple to be verified.
Step 120, obtain power supply ripple to be verified, and treat verifying power supply ripple and verify, when verify by time, out-put supply ripple, and perform step 200, when verification is obstructed out-of-date, regulates excitation parameters, and performs step 110.Step 120 can adopt PID (ratio, integration, differential) control algolithm to carry out treating verifying power supply ripple to carry out verifying and regulating excitation parameters.Pid control algorithm is the technology of a comparative maturity in existing industrial control field, does not repeat them here.
In sum, above-mentioned steps completes initialization self checking process, reduces artificial operation, improves testing efficiency, thus, meet the requirement for efficiency in the power supply ripple disturbed test process of vehicle electronics.
Based on above-described embodiment, Fig. 3 is the schematic flow sheet of step 200 in power supply ripple disturbed test embodiment of the method for the present invention.As shown in Figure 3, in power supply ripple disturbed test method provided by the invention, step 200 specifically comprises:
Step 210, acquisition power supply ripple, device under test is tested;
Step 220, power supply ripple to be verified constantly, and regulate excitation parameters according to check results.Step 220, also can adopt pid control algorithm verify constantly power supply ripple and regulate excitation parameters, repeat no more.Embodiment shown in composition graphs 1, step 220 and step 210 for synchronously carrying out, also can be carried out for asynchronous.
In sum, above-mentioned steps completes the checking procedure constantly when the test of device under test, improves the degree of accuracy of test, thus, meet the requirement for precision in the power supply ripple disturbed test process of vehicle electronics.
Based on above-described embodiment, Fig. 4 is the schematic flow sheet of the intermediate step of step 110 and step 120 in power supply ripple disturbed test embodiment of the method for the present invention.As shown in Figure 4, power supply ripple disturbed test method provided by the invention can also comprise between step 110 and step 120:
Steps A 1, obtain power supply ripple to be verified;
Steps A 2, treat the correlation parameter that verifying power supply ripple carries out visual output and/or record power supply ripple to be verified, the correlation parameter of power supply ripple to be verified comprises frequency and level.Wherein, visual output can adopt oscillograph to carry out Signal aspects.But, the present invention is not limited thereto, additive method also can be adopted to carry out visual display, such as, utilize common computer to show; The correlation parameter recording power supply ripple to be verified can utilize computing machine to carry out record.
Steps A 3, export power supply ripple to be verified.
In sum, the correlation parameter that above-mentioned steps is carried out visual output by treating verifying power supply ripple and/or recorded power supply ripple to be verified, that make that user can be more friendly and see the data constantly in whole initialization self checking process more flexibly, and provide data foundation for maintenance.
Based on above-described embodiment, Fig. 5 is the schematic flow sheet of the intermediate step of step 100 and step 200 in power supply ripple disturbed test embodiment of the method for the present invention.As shown in Figure 5, power supply ripple disturbed test method provided by the invention can also comprise between step 100 and step 200:
Steps A 4, acquisition power supply ripple;
Steps A 5, power supply ripple is carried out to the correlation parameter of visual output and/or recording power ripple, the correlation parameter of power supply ripple comprises frequency and level.Wherein, visual output can adopt oscillograph to carry out Signal aspects.But, the present invention is not limited thereto, additive method also can be adopted to carry out visual display, such as, utilize common computer to show; The correlation parameter of recording power ripple can utilize computing machine to carry out record.
Steps A 6, export described power supply ripple.
In sum, above-mentioned steps carries out the correlation parameter of visual output and/or recording power ripple by power supply ripple, make that user can be more friendly and see the data verified constantly in whole test process more flexibly, and provide data foundation for maintenance.
Fig. 6 is the structural representation of power supply ripple disturbed test system embodiment of the present invention.As shown in Figure 6, power supply ripple disturbed test system 10 provided by the invention, comprising:
Initialization self checking module 101, for obtaining parameter preset, initialization self checking is carried out according to parameter preset and excitation parameters, out-put supply ripple, parameter preset comprises tested point frequency values and the standard electric level values corresponding with tested point frequency values, and excitation parameters comprises the excitation amplitude corresponding with tested point frequency values and fiduciary level output valve; Wherein, the parameter preset obtaining user 20 setting in initialization self checking module 101 is realized by computing machine; Carrying out initialization self checking according to parameter preset in initialization self checking module 101 is also realized by computing machine; In initialization self checking module 101, out-put supply ripple produces the level of drive by signal source, and realize through power amplifier amplification, other equipment also can be adopted to realize, such as, use computing machine analog signal output.Said process, as adopted wire transmission, can adopt USB connection, netting twine connection etc.
Verification and test module 102 constantly, obtain power supply ripple, device under test 30 is tested, and verifies constantly power supply ripple.Wherein, verification and test module 102 pairs of power supply ripples verify constantly is constantly realized by computing machine.Said process, as adopted wire transmission, can adopt USB connection, netting twine connection etc.
In sum, power supply ripple disturbed test system 10 provided by the invention, first, initialization self checking module 101 carries out initialization self checking according to parameter preset, reduces artificial operation, improve testing efficiency, secondly, verification and test module 102 verify constantly in the test process of device under test 30 constantly, improve the degree of accuracy of test, therefore, the requirement for efficiency and precision in the power supply ripple disturbed test process of vehicle electronics is met.
Based on above-described embodiment, Fig. 7 is the structural representation of the initialization self checking module of power supply ripple disturbed test system embodiment of the present invention.As shown in Figure 7, the initialization self checking module 101 of power supply ripple disturbed test system provided by the invention, comprising:
Power supply ripple generation unit 1011 to be measured, for obtaining parameter preset, and according to parameter preset and excitation parameters, generates power supply ripple to be verified; Wherein, the power supply ripple generation unit 1011 to be measured of the present embodiment is made up of signal source and power amplifier, signal source produces the level of drive, and amplify out-put supply ripple through power amplifier, but, the present invention is not limited thereto, also can comprise other equipment and realize power supply ripple generation unit 1011 to be measured, such as, computing machine analog signal output is used.
Initialization self checking unit 1012, for obtaining power supply ripple to be verified, and treats verifying power supply ripple and verifies, when verify by time, export described power supply ripple, when verification is obstructed out-of-date, regulate described excitation parameters.The initialization self checking unit 1012 that the present embodiment adopts is computing machines.
In sum, power supply ripple generation unit to be measured 1011 and the initialization self checking unit 1012 of power supply ripple disturbed test system provided by the invention, complete the output of initialization self checking process and power supply ripple, reduce artificial operation, improve testing efficiency, thus, meet the requirement for efficiency in the power supply ripple disturbed test process of vehicle electronics.
Based on above-described embodiment, Fig. 8 is the structural representation of verification and the test module constantly of power supply ripple disturbed test system embodiment of the present invention.As shown in Figure 8, the verification constantly of power supply ripple disturbed test system provided by the invention and test module 102, comprising:
Power supply ripple acquiring unit 1021, for obtaining power supply ripple;
Test cell 1022, tests for device under test; Equipment to be tested can be arbitrary vehicle electronics, such as, and vehicle mounted MP 3, ignition coil, illuminating lamp, pilot lamp, wiper, electric car window and antenna lifter etc.
Constantly verification unit 1023, for verifying constantly power supply ripple, and according to check results regulate excitation parameters.The verification constantly of verification unit 1023 pairs of power supply ripples is constantly realized by computing machine.Said process, as adopted wire transmission, can adopt USB connection, netting twine connection etc.
In sum, the power supply ripple acquiring unit 1021 of power supply ripple disturbed test system provided by the invention, test cell 1022 and verification unit 1023 constantly, complete the checking procedure constantly during the test of device under test, improve the degree of accuracy of test, thus, meet the requirement for precision in the power supply ripple disturbed test process of vehicle electronics.
Based on above-described embodiment, Fig. 9 is the structural representation of another embodiment of power supply ripple disturbed test system of the present invention.As shown in Figure 9, another embodiment of power supply ripple disturbed test system 10 provided by the invention also comprises visualization model 103, for treating verifying power supply ripple and/or the correlation parameter to power supply ripple, carries out data display constantly.The correlation parameter of power supply ripple to be verified comprises frequency values and the level value of power supply ripple to be verified, and the correlation parameter of power supply ripple comprises frequency values and the level value of power supply ripple.The present embodiment adopts oscillograph as visualization model 103.But, the present invention is not limited thereto, additive method also can be adopted to carry out visual display, such as, utilize common computer to show.
In sum, the visualization model 103 of power supply ripple disturbed test system 10 provided by the invention, visual output is carried out by power supply ripple to be verified and/or power-supply ripple, that make that user 20 can be more friendly and see initialization self checking more flexibly and/or watch data easily in checking procedure constantly, make measuring process more directly perceived, more convenient.
Based on above-described embodiment, as shown in Figure 9, another embodiment of power supply ripple disturbed test system 10 provided by the invention also comprises logging modle 104, for recording the correlation parameter of power supply ripple to be verified and/or described power supply ripple, the correlation parameter of power supply ripple to be verified comprises frequency values and the level value of power supply ripple to be verified, and the correlation parameter of power supply ripple comprises frequency values and the level value of described power supply ripple.The present embodiment adopts computing machine to carry out record to data, can adopt USB connection, netting twine connection etc.In sum, the logging modle 104 of power supply ripple disturbed test system 10 provided by the invention, by carrying out record to power supply ripple and/or power-supply ripple, make user 20 can obtain initialization self checking and/or the data constantly in checking procedure, and preserved, thus the maintenance for system provides important data foundation.
In sum, output module can export testing result, improves the interactive capability of signal quality detection system, enhances practicality.Alarm module can be worked as the abnormal alarm of testing result and be reminded, and effectively improves sensitivity and security.Backup module can carry out storage backup to result, safeguards providing foundation for signal quality detection system.
Power supply ripple disturbed test method and system provided by the invention, by carrying out initialization self checking according to parameter preset, reducing artificial operation, improve testing efficiency, and by the verification constantly carried out in the test process of device under test 30, improve the degree of accuracy of test.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a power supply ripple disturbed test method, is characterized in that, comprising:
Step 100, acquisition parameter preset, initialization self checking is carried out according to described parameter preset and excitation parameters, out-put supply ripple, described parameter preset comprises tested point frequency values and the standard electric level values corresponding with described tested point frequency values, and described excitation parameters comprises the excitation amplitude corresponding with described tested point frequency values and described standard electric level values;
Step 200, obtain described power supply ripple, device under test is tested, and verifies constantly described power supply ripple.
2. power supply ripple disturbed test method according to claim 1, it is characterized in that, described step 100, comprising:
Step 110, obtain described parameter preset, and according to described parameter preset and described excitation parameters, generate power supply ripple to be verified;
Step 120, obtain described power supply ripple to be verified, and described power supply ripple to be verified verified, when verify by time, export described power supply ripple, and perform step 200, when verification is obstructed out-of-date, regulates described excitation parameters, and perform step 110.
3. power supply ripple disturbed test method according to claim 1, it is characterized in that, described step 200, comprising:
Step 210, obtain described power supply ripple, device under test is tested;
Step 220, described power supply ripple to be verified constantly, and regulate described excitation parameters according to check results.
4. power supply ripple disturbed test method according to claim 2, is characterized in that, between described step 110 and described step 120, comprising:
Steps A 1, obtain described power supply ripple to be verified;
Steps A 2, carry out visual output and/or record the correlation parameter of described power supply ripple to be verified to described power supply ripple to be verified, the correlation parameter of described power supply ripple to be verified comprises the frequency values of described power supply ripple to be verified and the level value of described power supply ripple to be verified;
Steps A 3, export described power supply ripple to be verified.
5. power supply ripple disturbed test method according to claim 1, is characterized in that, between described step 100 and described step 200, comprising:
Steps A 4, obtain described power supply ripple;
Steps A 5, described power supply ripple carried out to visual output and/or record the correlation parameter of described power supply ripple, the correlation parameter of described power supply ripple comprises frequency values and the level value of described power supply ripple;
Steps A 6, export described power supply ripple.
6. a power supply ripple disturbed test system, is characterized in that, comprising:
Initialization self checking module, for obtaining parameter preset, initialization self checking is carried out according to described parameter preset and excitation parameters, out-put supply ripple, described parameter preset comprises tested point frequency values and the standard electric level values corresponding with described tested point frequency values, and described excitation parameters comprises the excitation amplitude corresponding with described tested point frequency values and described standard electric level values; Verification and test module constantly, obtain described power supply ripple, device under test is tested, and verifies constantly described power supply ripple.
7. power supply ripple disturbed test system according to claim 6, is characterized in that, described initialization self checking module comprises:
Power supply ripple generation unit to be measured, for obtaining described parameter preset, and according to described parameter preset and described excitation parameters, generates power supply ripple to be verified;
Initialization self checking unit, for obtaining described power supply ripple to be verified, and verifies described power supply ripple to be verified, when verify by time, export described power supply ripple, when verification obstructed out-of-date, regulate described excitation parameters.
8. power supply ripple disturbed test system according to claim 6, is characterized in that, described verification and test module constantly comprise:
Power supply ripple acquiring unit, for obtaining described power supply ripple;
Test cell, for testing described Devices to test;
Verification unit constantly, for verifying constantly described power supply ripple, and regulates excitation parameters according to check results.
9. power supply ripple disturbed test system according to claim 7, it is characterized in that, also comprise visualization model, for treating verifying power supply ripple and/or showing the data that the correlation parameter of power supply ripple carries out constantly, the correlation parameter of described power supply ripple to be verified comprises frequency values and the level value of described power supply ripple to be verified, and the correlation parameter of described power supply ripple comprises frequency values and the level value of described power supply ripple.
10. power supply ripple disturbed test system according to claim 7, it is characterized in that, also comprise logging modle, for recording the correlation parameter of power supply ripple to be verified and/or power supply ripple, the correlation parameter of described power supply ripple to be verified comprises frequency values and the level value of described power supply ripple to be verified, and the correlation parameter of described power supply ripple comprises frequency values and the level value of described power supply ripple.
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