CN103713282B - The Auto-Test System of the automatic compensation device of the video based on general-utility test platform - Google Patents
The Auto-Test System of the automatic compensation device of the video based on general-utility test platform Download PDFInfo
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- CN103713282B CN103713282B CN201310671005.2A CN201310671005A CN103713282B CN 103713282 B CN103713282 B CN 103713282B CN 201310671005 A CN201310671005 A CN 201310671005A CN 103713282 B CN103713282 B CN 103713282B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
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Abstract
The Auto-Test System of the automatic compensation device of the video based on general-utility test platform, it relates to continuous wave radar technology and fault automatic test technology field.General-utility test platform (1) and private adapter (2) carry out the transmission of bi-directional data and order by ethernet interface, private adapter (2) is that the test of the automatic compensation device of tested video (3) provides test signal vector under the control of test program set.It can complete the integration test such as function and performance test, fault diagnosis and localization of fault of the automatic compensation device of transmit leakage efficiently and accurately, solve current measuring technology and many defects such as methodological function is single, measuring accuracy is limited, testing efficiency is low, poor expandability, have that universal performance is good, functional expansionary strong, test transplantability is good, measuring accuracy and testing efficiency advantages of higher.
Description
Technical field:
The present invention relates to continuous wave radar technology and fault automatic test technology field, particularly relate to the Auto-Test System of the automatic compensation device of a kind of video based on general-utility test platform.
Background technology:
Pseudo-random code phase modulating continuous wave is a kind of radar system with high range resolution, high-speed resolving power, low probability of intercept characteristic, be subject to attention both domestic and external and extensively research, be widely applied in fields such as short range scouting, low target instruction, over-the-horizon target detection, extraterrestrial target measurements.But, for single base pseudo-random code phase modulating continuous wave radar, no matter adopt single antenna or double antenna, transmit leakage is all one of key factor of its performance of restriction, it is the technology that must adopt that transmit leakage offsets automatically, otherwise transmit leakage can worsen system performance, the even more serious target detection disabler that may make radar system.
A kind of automatic compensation device of video of pseudo-random code binary-phase modulation transmit leakage of number of patent application 200810078665.9 invention, the video echo signal exported by pseudo-random code binary-phase modulation receives two input ends of simulation canceller simultaneously with reference to pseudo-code signal with offseting, application offsets residue detecting device and offsets the output of analyzer-controller to simulation canceller and detects, analysis and comparison, progressively adjustment offsets amplitude and the polarity of reference code, offseting of transmit leakage is finally made to remain in acceptable threshold range, thus reduce the transmit leakage eliminating pseudo-random code binary-phase modulation even completely.The automatic canceller of transmit leakage video of this patented technology is utilized to be successfully applied in the short range reconnaissance radar of pseudocode phase-modulated continuous wave system.
The successful Application of the automatic compensation device of video in short range reconnaissance radar field also to bring in production and base level, Relay maintenance process how to function, performance, the malfunction of the automatic canceller of video and localization of fault is measured fast and accurately, analysis and synthesis test problem simultaneously.At present, the function of the automatic canceller of video, performance measurement adopt separate devices, auxiliary special test frock, undertaken by the method manually adjusting, test, although the demand of production substantially can be met, but also exist that testing efficiency is low, measuring accuracy is limited, the defect such as the versatility of test macro and portability difference, also lack the function of fault diagnosis and fault analysis, location, the demand of base level and Relay product repairing cannot be met.
Auto-Test System (ATS) is a kind of equipment tested by computing machine control realization device, circuit board and subsystem etc.ATE general-purpose platform is scalable, a parameterized test platform, minimum cost can exchange maximum test effect for, perfect functional module and instrument, for tester provides good test environment, improves measuring accuracy.ATE general-purpose platform is dissimilar product, is equipped in identical platform and carries out automatically testing providing technical foundation.Based on the equipment performance test of ATE general-utility test platform, automatic fault diagnosis, analysis and location, become the development trend of domestic and international automatic test technology.The present invention is based on the system architecture of ATE general-utility test platform+private adapter, private adapter provides test and excitation signal, the test procedure of general-utility test platform completes the automatic test of the automatic canceller of video, the control of fault diagnosis and location, signals collecting, treatment and analysis, function and the performance test of the automatic canceller of video can be realized, the integration tests such as fault diagnosis and location, not only possess skills advanced person, measuring accuracy and testing efficiency high, fault analysis accurate positioning, versatility is good, the technical advantages such as portability is strong, also the Patents report of the Auto-Test System of the automatic compensation device of pseudo-random code binary-phase modulation transmit leakage based on general-utility test platform is had no both at home and abroad.
Summary of the invention:
The object of this invention is to provide the Auto-Test System of the automatic compensation device of video based on general-utility test platform, it can complete the integration test such as function and performance test, fault diagnosis and localization of fault of the automatic compensation device of transmit leakage efficiently and accurately, solve current measuring technology and many defects such as methodological function is single, measuring accuracy is limited, testing efficiency is low, poor expandability, have that universal performance is good, functional expansionary strong, test transplantability is good, measuring accuracy and testing efficiency advantages of higher.
In order to solve the problem existing for background technology, the present invention is by the following technical solutions: it is made up of general-utility test platform 1, private adapter 2, the automatic compensation device 3 of tested video, general-utility test platform 1 provides high-speed ADC, high-speed DAC, logic control, sampling channel, communication interface, power supply, the hardware such as test program set, software resource, general-utility test platform 1 and private adapter 2 carry out the transmission of bi-directional data and order by ethernet interface, private adapter 2 for the test of the automatic compensation device 3 of tested video provides test signal vector, comprises and can arrange distance under the control of test program set, speed, the target echo of fluctuation characteristic, land clutter, noise and interference, the logic control signal of unit under test and programmable voltage signal, test program set controls the automatic test of tested video automatic compensation device 3 combination property, by sending different instruction to private adapter 2, producing different test signal vectors by private adapter 2, building hypothesis testing environment, land clutter test environment and disturbed test environment, to the basic function of the automatic compensation device 3 of tested video, under performance and complicated signal environment automatically offset static properties and dynamic property is tested, the vision signal that general-utility test platform 1 exports the automatic compensation device 3 of tested video, offset reference code, offset detection voltage and carry out high speed signal sampling, carry out Digital Signal Analysis and Processing by test program set, performance Index Calculation, fault diagnosis and localization of fault, finally form the performance parameter of the automatic compensation device 3 of tested video under three kinds of test environments, malfunction, localization of fault result data form, test program set controls general-utility test platform 1, private adapter 2 can offset pseudo-code polarity to the automatic compensation device 3 of tested video, amplitude range, offsets the performance parameter of detecting device, and feed-through nulling remains, and offset the processing time, canceller dynamic perfromance, the signal-to-noise ratio degradation of canceller etc. are measured automatically, simultaneously according to the measurement result of each parameter, in conjunction with test vector combination and fault dictionary, draw the malfunction of the automatic compensation device 3 of tested video and fault is accurately located, the performance parameter of the automatic canceller of the automatic generating video of test program set under three kinds of test environments, malfunction, localization of fault result data form.
Described private adapter 2 adopts the high-performance hardware circuit board of the hardware structure of FPGA, high-speed DAC and embedded type CPU, test signal vector produces, logic control signal produces and realized by FPGA, Ethernet interface is realized by embedded type CPU, exchanges data is carried out by dual port RAM between embedded type CPU and FPGA, use the I/O signal of CPU directly to carry out control and management to FPGA, machinery and the electric interfaces of private adapter 2 and general-utility test platform 1 meet the technical requirement of ATE general-utility test platform adapter development.FPGA, the hardware structure of high-speed DAC and embedded type CPU produces test and excitation signal, the target echo of pseudo-random code binary-phase modulation required in automatic testing process can be produced neatly, transmit leakage, ground clutter echo, noise, interference and composite signal thereof, and can accurate analog target range, speed, amplitude scintillation characteristic, the signal to noise ratio of test signal vector is set, signal to noise ratio (S/N ratio) parameter, for video automatic canceller structure hypothesis testing environment, ground clutter test environment and disturbed test environment, by the test data under different test environment, the static state of the automatic canceller of comprehensive reflecting video, dynamic property.
The automatic test processes process of the described automatic compensation device of tested video 3 comprises hypothesis testing, the performance parameter test of the automatic canceller of video under land clutter and interference three kinds of test environments, fault diagnosis and location is analyzed and data sheet is formed, treatment scheme under three kinds of test environments is similar, specific works flow process wherein under hypothesis testing environment is: a, after general-purpose platform powers up normal work, run the automatic canceller autotest program of video, test procedure initializing universal platform resource, comprise shutoff programme-controlled dc power, the voltage and current of each road programme-controlled dc power is set, the switching rate of high-speed DAC and high-speed ADC is set, level standard and the state of programmable I/O are set, initialization Ethernet, start message is sent to adapter, the start response message of b, wait adapter, if receive response message to enter the main interface of test in 100ms, if do not receive response message, adapter fails, terminates test and exits test procedure, c, enter test main interface after, display reminding information, waits beginning to be tested, d, test start, and open the automatic canceller power supply of video, carry out the test processes under ecotopia, send out ecotopia test command message to adapter, wait for the response message of adapter, e, receive adapter response message, the test signal vector that adapter has set under ecotopia offsets control voltage, the high-speed ADC collection of f, general-purpose platform offsets reference code signal, and test procedure utilizes the data gathered to calculate peak-to-peak value, the amplitude of reference code signal of offseting, and test procedure controls adapter adjustment and offsets voltage, thus obtain canceller offset reference code scope, the high-speed ADC collection of g, general-purpose platform offsets detectable voltage signals, test procedure utilizes the data gathered to calculate and offsets detection average voltage, test procedure control adapter adjustment transmit leakage signal amplitude, thus obtain difference offset residue under offset detection voltage, the high-speed ADC of h, general-purpose platform gathers output video signal, and test procedure utilizes the data gathered to calculate the amplitude offseting residual signal, draws the leakage degree of suppression of canceller, calculates the signal to noise ratio (S/N ratio) of echoed signal, thus draw the signal-to-noise ratio degradation parameter of canceller, i, judge malfunction according to the measurement result of f ~ h, if there is fault, according to measurement result and test signal vectorial combination, fault is positioned, j, proceed to land clutter environmental testing and interference environment test processes flow process, complete the performance test under three kinds of environment, form test data form, exit test procedure.
The present invention is due to quick, the programmable characteristic of Auto-Test System, not only achieve the automatic canceller of video offset time delay, transmit leakage rise and fall under the automatic test of the dynamic property such as cancellation performance, also achieve the function to video cancellation device, performance test, realize fault diagnosis and localization of fault simultaneously, can be applicable to production, the base level of product and Relay maintenance and detect.
The present invention can complete the integration test such as function and performance test, fault diagnosis and localization of fault of the automatic compensation device of transmit leakage efficiently and accurately, solve current measuring technology and many defects such as methodological function is single, measuring accuracy is limited, testing efficiency is low, poor expandability, have that universal performance is good, functional expansionary strong, test transplantability is good, measuring accuracy and testing efficiency advantages of higher.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the processing flow chart that the present invention tests automatically;
Fig. 3 is the processing flow chart of the present invention under desirable test environment.
Embodiment:
With reference to Fig. 1-Fig. 3, this embodiment by the following technical solutions: it is made up of general-utility test platform 1, private adapter 2, the automatic compensation device 3 of tested video, general-utility test platform 1 provides high-speed ADC, high-speed DAC, logic control, sampling channel, communication interface, power supply, the hardware resource of test program set, general-utility test platform 1 and private adapter 2 carry out the transmission of bi-directional data and order by ethernet interface, private adapter 2 for the test of the automatic compensation device 3 of tested video provides test signal vector, comprises and can arrange distance under the control of test program set, speed, the target echo of fluctuation characteristic, land clutter, noise and interference, the logic control signal of unit under test and programmable voltage signal, test program set controls the automatic test of tested video automatic compensation device 3 combination property, by sending different instruction to private adapter 2, producing different test signal vectors by private adapter 2, building hypothesis testing environment, land clutter test environment and disturbed test environment, to the basic function of the automatic compensation device 3 of tested video, under performance and complicated signal environment automatically offset static properties and dynamic property is tested, the vision signal that general-utility test platform 1 exports the automatic compensation device 3 of tested video, offset reference code, offset detection voltage and carry out high speed signal sampling, carry out Digital Signal Analysis and Processing by test program set, performance Index Calculation, fault diagnosis and localization of fault, finally form the performance parameter of the automatic compensation device 3 of tested video under three kinds of test environments, malfunction, localization of fault result data form, test program set controls general-utility test platform 1, private adapter 2 can offset pseudo-code polarity to the automatic compensation device 3 of tested video, amplitude range, offsets the performance parameter of detecting device, and feed-through nulling remains, and offset the processing time, canceller dynamic perfromance, canceller is measured automatically to input signal signal-to-noise ratio degradation etc., simultaneously according to the measurement result of each parameter, in conjunction with test vector combination and fault dictionary, draw the malfunction of the automatic compensation device 3 of tested video and fault is accurately located, the performance parameter of the automatic canceller of the automatic generating video of test program set under three kinds of test environments, malfunction, localization of fault result data form.
Described private adapter 2 adopts the high-performance hardware circuit board of the hardware structure of FPGA, high-speed DAC and embedded type CPU, test signal vector produces, logic control signal produces and realized by FPGA, Ethernet interface is realized by embedded type CPU, exchanges data is carried out by dual port RAM between embedded type CPU and FPGA, use the I/O signal of CPU directly to carry out control and management to FPGA, machinery and the electric interfaces of private adapter 2 and general-utility test platform 1 meet the technical requirement of ATE general-utility test platform adapter development.FPGA, the hardware structure of high-speed DAC and embedded type CPU produces test and excitation signal, the target echo of pseudo-random code binary-phase modulation required in automatic testing process can be produced neatly, transmit leakage, ground clutter echo, noise, interference and composite signal thereof, and can accurate analog target range, speed, amplitude scintillation characteristic, the signal to noise ratio of test signal vector is set, signal to noise ratio (S/N ratio) parameter, for video automatic canceller structure hypothesis testing environment, ground clutter test environment and disturbed test environment, by the test data under different test environment, the static state of the automatic canceller of comprehensive reflecting video, dynamic property.
The automatic test processes process of the described automatic compensation device of tested video 3 comprises hypothesis testing, the performance parameter test of the automatic canceller of video under land clutter and interference three kinds of test environments, fault diagnosis and location is analyzed and data sheet is formed, treatment scheme under three kinds of test environments is similar, specific works flow process wherein under hypothesis testing environment is: a, after general-purpose platform powers up normal work, run the automatic canceller autotest program of video, test procedure initializing universal platform resource, comprise shutoff programme-controlled dc power, the voltage and current of each road programme-controlled dc power is set, the switching rate of high-speed DAC and high-speed ADC is set, level standard and the state of programmable I/O are set, initialization Ethernet, start message is sent to adapter, the start response message of b, wait adapter, if receive response message to enter the main interface of test in 100ms, if do not receive response message, adapter fails, terminates test and exits test procedure, c, enter test main interface after, display reminding information, waits beginning to be tested, d, test start, and open the automatic canceller power supply of video, carry out the test processes under ecotopia, send out ecotopia test command message to adapter, wait for the response message of adapter, e, receive adapter response message, the test signal vector that adapter has set under ecotopia offsets control voltage, the high-speed ADC collection of f, general-purpose platform offsets reference code signal, and test procedure utilizes the data gathered to calculate peak-to-peak value, the amplitude of reference code signal of offseting, and test procedure controls adapter adjustment and offsets voltage, thus obtain canceller offset reference code scope, the high-speed ADC collection of g, general-purpose platform offsets detectable voltage signals, test procedure utilizes the data gathered to calculate and offsets detection average voltage, test procedure control adapter adjustment transmit leakage signal amplitude, thus obtain difference offset residue under offset detection voltage, the high-speed ADC of h, general-purpose platform gathers output video signal, and test procedure utilizes the data gathered to calculate the amplitude offseting residual signal, draws the leakage degree of suppression of canceller, calculates the signal to noise ratio (S/N ratio) of echoed signal, thus draw the signal-to-noise ratio degradation parameter of canceller, i, judge malfunction according to the measurement result of f ~ h, if there is fault, according to measurement result and test signal vectorial combination, fault is positioned, j, proceed to land clutter environmental testing and interference environment test processes flow process, complete the performance test under three kinds of environment, form test data form, exit test procedure.
This embodiment is due to quick, the programmable characteristic of Auto-Test System, not only achieve the automatic canceller of video offset time delay, transmit leakage rise and fall under the automatic test of the dynamic property such as cancellation performance, also achieve the function to video cancellation device, performance test, realize fault diagnosis and localization of fault simultaneously, can be applicable to production, the base level of product and Relay maintenance and detect.
This embodiment can complete the integration test such as function and performance test, fault diagnosis and localization of fault of the automatic compensation device of transmit leakage efficiently and accurately, solve current measuring technology and many defects such as methodological function is single, measuring accuracy is limited, testing efficiency is low, poor expandability, have that universal performance is good, functional expansionary strong, test transplantability is good, measuring accuracy and testing efficiency advantages of higher.
Obviously, the above embodiment of the present invention is only for example of the present invention is clearly described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, other multi-form change and variations can also be made on the basis of the above description.Here cannot give exhaustive to all embodiments.Every belong to technical scheme of the present invention the apparent change of amplifying out or variation be still in the row of protection scope of the present invention.
Claims (3)
1., based on the Auto-Test System of the automatic compensation device of video of general-utility test platform, it is characterized in that it is made up of general-utility test platform (1), private adapter (2), the automatic compensation device of tested video (3), general-utility test platform (1) provides high-speed ADC, high-speed DAC, logic control, sampling channel, communication interface, power supply, test program set or hardware, software resource, general-utility test platform (1) and private adapter (2) carry out the transmission of bi-directional data and order by ethernet interface, the test of private adapter (2) for the automatic compensation device of tested video (3) under the control of test program set provides test signal vector, comprises and can arrange distance, speed, the target echo of fluctuation characteristic, land clutter, noise and interference, the logic control signal of unit under test and programmable voltage signal, test program set controls the automatic test of the automatic compensation device of tested video (3) combination property, by sending different instruction to private adapter (2), produce different test signal vectors by private adapter (2), build hypothesis testing environment, land clutter test environment and disturbed test environment, to the basic function of the automatic compensation device of tested video (3), under performance and complicated signal environment automatically offset static properties and dynamic property is tested, the vision signal that general-utility test platform (1) exports the automatic compensation device of tested video (3), offset reference code, offset detection voltage and carry out high speed signal sampling, carry out Digital Signal Analysis and Processing by test program set, performance Index Calculation, fault diagnosis and localization of fault, finally form the automatic compensation device of tested video (3) performance parameter under three kinds of test environments, malfunction, localization of fault result data form, test program set controls general-utility test platform (1), private adapter (2) can offset pseudo-code polarity to the automatic compensation device of tested video (3), amplitude range, offsets the performance parameter of detecting device, and feed-through nulling remains, and offsets the processing time, canceller dynamic perfromance, and the Signal-to-Noise of canceller worsens to be measured, automatically simultaneously according to the measurement result of each parameter, in conjunction with test vector combination and fault dictionary, draw the malfunction of the automatic compensation device of tested video (3) and fault is accurately located, the performance parameter of the automatic canceller of the automatic generating video of test program set under three kinds of test environments, malfunction, localization of fault result data form.
2. the Auto-Test System of the automatic compensation device of the video based on general-utility test platform according to claim 1, is characterized in that described private adapter (2) adopts the high-performance hardware circuit board of the hardware structure of FPGA, high-speed DAC and embedded type CPU.
3. the Auto-Test System of the automatic compensation device of the video based on general-utility test platform according to claim 1, it is characterized in that the automatic test processes process of the described automatic compensation device of tested video (3) comprises hypothesis testing, the performance parameter test of the automatic canceller of video under land clutter and interference three kinds of test environments, fault diagnosis and location is analyzed and data sheet is formed, treatment scheme under three kinds of test environments is similar, specific works flow process wherein under hypothesis testing environment is: a, after general-purpose platform powers up normal work, run the automatic canceller autotest program of video, test procedure initializing universal platform resource, comprise shutoff programme-controlled dc power, the voltage and current of each road programme-controlled dc power is set, the switching rate of high-speed DAC and high-speed ADC is set, level standard and the state of programmable I/O are set, initialization Ethernet, start message is sent to adapter, the start response message of b, wait adapter, if receive response message to enter the main interface of test in 100ms, if do not receive response message, adapter fails, terminates test, exits test procedure, c, enter test main interface after, display reminding information, waits beginning to be tested, d, test start, and open the automatic canceller power supply of video, enter the test processes of carrying out under ecotopia, send out ecotopia test command message to adapter, wait for the response message of adapter, e, receive adapter response message, the test signal vector that adapter has set under ecotopia offsets control voltage, the high-speed ADC collection of f, general-purpose platform offsets reference code signal, and test procedure utilizes the data gathered to calculate peak-to-peak value, the amplitude of reference code signal of offseting, and test procedure controls adapter adjustment and offsets voltage, thus obtain canceller offset reference code scope, the high-speed ADC collection of g, general-purpose platform offsets detectable voltage signals, test procedure utilizes the data gathered to calculate and offsets detection average voltage, test procedure control adapter adjustment transmit leakage signal amplitude, thus obtain difference offset residue under offset detection voltage, the high-speed ADC of h, general-purpose platform gathers output video signal, and test procedure utilizes the data gathered to calculate the amplitude offseting residual signal, draws the leakage degree of suppression of canceller, calculates the signal to noise ratio (S/N ratio) of echoed signal, thus draw the signal-to-noise ratio degradation parameter of canceller, i, judge malfunction according to the measurement result of f ~ h, if there is fault, according to measurement result and test signal vectorial combination, fault is positioned, j, proceed to land clutter environmental testing and interference environment test processes flow process, complete the performance test under three kinds of environment, form test data form, exit test procedure.
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| CN105205006B (en) * | 2015-10-30 | 2018-05-04 | 北京新能源汽车股份有限公司 | Multi-platform universal testing method, device and system |
| CN110968490A (en) * | 2019-11-22 | 2020-04-07 | 成都凯天电子股份有限公司 | General detection platform for atmospheric data computer |
| CN112131065A (en) * | 2020-11-03 | 2020-12-25 | 珠海格力电器股份有限公司 | Method, device and system for verifying DAC (digital-to-analog converter) interface |
| CN112714015B (en) * | 2020-12-23 | 2023-08-22 | 上海科梁信息科技股份有限公司 | Communication data fault injection method and system, communication device and storage medium |
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