CN106019021A - Universal test tool of electronic device test device and test method of universal test tool - Google Patents
Universal test tool of electronic device test device and test method of universal test tool Download PDFInfo
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- CN106019021A CN106019021A CN201610510265.5A CN201610510265A CN106019021A CN 106019021 A CN106019021 A CN 106019021A CN 201610510265 A CN201610510265 A CN 201610510265A CN 106019021 A CN106019021 A CN 106019021A
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- 238000012360 testing method Methods 0.000 title claims abstract description 122
- 238000010998 test method Methods 0.000 title claims abstract description 8
- 238000004088 simulation Methods 0.000 claims abstract description 11
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- 230000000737 periodic effect Effects 0.000 claims description 26
- 230000011664 signaling Effects 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 4
- 238000011056 performance test Methods 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 1
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- 238000010200 validation analysis Methods 0.000 description 1
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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 provides a universal test tool of an electronic device test device and a test method of the universal test tool. The universal test tool of the electronic device test device includes a client which can establish a simulation model of a tested electronic device and simulate normal signals and fault signals of the tested electronic device, a server which can obtain the parameters of the client, analyze the data and generate control signals, and an apparatus which receives the control of the server and generates various kinds of normal or fault physical signals; the client is connected with the server through a network; the control signal output end of the server is connected with the signal input end of the apparatus through the network; and the signal output end of the apparatus is connected with a test device used for testing the physical signals outputted by the apparatus through a test adapter. The universal test tool of the invention has the advantages of high universality, low cost and convenience in popularization, and is applicable to tested electronic devices and is suitable for function and performance tests of any tested electronic devices.
Description
Technical field
The invention belongs to electron device testing field, the universal test frock of a kind of testing for electrical equipment device.Present invention also offers the method for testing of the universal test frock of a kind of testing for electrical equipment device.
Background technology
Along with the application of electronic equipment is more and more extensive, functional requirement for electronic equipment is more and more higher, especially modern electronic equipment function is increasingly advanced, system composition becomes increasingly complex, therefore its probability broken down is consequently increased, and needs to utilize electronic test equipment to test electronic equipment.In order to ensure the test design of device, the requirement of exploitation, needing to carry out the most afterwards in test device development the checking of function and performance, need to utilize test device that tested electronic equipment carries out fault test checking test in prior art, current way is usually:
1) for specific electronic equipment set, it would be desirable to the physical fault of test device injects tested electronic equipment, verifies the electronic test equipment power of test to fault-signal；
2) exploitation special test frock, the fault-signal of simulation equipment under test, it is provided that test to electronic test equipment, the power of test of validation test device.
Method physical fault signal being injected tested electronic equipment for the first, is likely to result in the disaster of the infringement to measurand, even fatal crass, and a lot of faults cannot be injected in measurand.And the method that the special test fixture of different tested electronic equipment exploitations is required for for the second, then need to take a substantial amount of time and expense, development difficulty is the biggest, and general research and development, production unit can not be borne by such cost, cause can using without test fixture.
Summary of the invention
The technical problem to be solved in the present invention, it is to provide the universal test frock of a kind of testing for electrical equipment device, a general platform can be provided for various different test devices, various normal and fault-signal required for generation, while ensureing not damage tested electronic equipment, it is possible to verify function and the performance of various different test device.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of universal test frock of testing for electrical equipment device, it includes setting up tested electronic equipment phantom and the tested electronic equipment of emulation is normal and the client of fault-signal, the parameter of client can be obtained and data are analyzed being formed the server of control signal, the control receiving server produces the various normal or instrument and equipment of faulty physical signal, described client is connected by network with server, the control signal outfan of server connects the signal input part of instrument and equipment by network, the signal output part of described instrument and equipment is connected by the test equipment of test adapter with the physical signalling sent out for test instrunment equipment.
As limitation of the invention: described instrument and equipment includes the control unit as control centre; and it is converted into the normal or converting unit of faulty physical signal for server being transmitted the data signal come; described control unit is connected with client by network; the control signal outfan of control unit connects the signal input part of converting unit, and the normal or faulty physical signal of described converting unit output is by coaxial cable connecting test adapter.
As limitation of the invention further: described converting unit is that signal based on PXI bussing technique produces board.
Present invention also offers the method for testing of the universal test frock of a kind of testing for electrical equipment device, universal test frock based on above-mentioned testing for electrical equipment device completes, and it includes the following steps carried out successively:
One) staff utilizes client to set up the circuit simulation model of tested electronic equipment, the most respectively simulation run tested electronic device circuitry normally or under failure condition, and preserves the signal of telecommunication emulation data of each measured point；
Two) server obtains signal of telecommunication emulation data by network from client, and is analyzed data processing, and produces the various parameters that can control needed for instrument and equipment；
Three) instrument and equipment is produced the various normal or physical signalling of fault and is sent out by test adapter after receiving, by network, the parameter that server transmits；
Four) after the various normal or physical signalling of fault that test equipment is spread out of by test adapter receiving instrument equipment, this physical signalling is tested accordingly, finally give the function of tested electronic equipment, performance.
Restriction as to said method: described step 2) include the following steps that carry out successively:
1. server is loaded into the normal or emulation data file of fault-signal after emulating by network from client, reads the data of each test point in file, it is judged that the signal type of the data of reading；
2. process accordingly according to the signal type reading data, and computing equipment equipment needs signal amplitude and the attenuation of generation；
3. select to need to be handed down to the test point signal of instrument and equipment according to the signal type of data, and test point signal is handed down to instrument and equipment.
Periodic signal and nonperiodic signal is included as the signal type that said method is further defined that during described step is 1. the data read；Step 2. in for the process of periodic signal be: calculate the frequency of periodic signal, cycle relevant parameter, and can be generated by, according to the amplitude of signal and instrument and equipment, signal amplitude and the attenuation that the amplitude limits computing equipment equipment of signal needs to produce, and the process for nonperiodic signal is: a computing equipment equipment needs signal amplitude and the attenuation produced；Step 3. in for periodic signal process for intercept a cycle test point signal be handed down to instrument and equipment, then need all data issuing test point to instrument and equipment for nonperiodic signal.
Further restriction as to said method: described server includes the following steps carried out successively to the determination methods of periodic signal:
) first data point voltage of record, traversal array is until magnitude of voltage is identical at first, record first all data arrived in second point interval, and judge that data are the most identical in data are the most interval with first in next interval with this siding-to-siding block length, if error three numbers according to this in; regard as periodic signal；If differing, starting to continue traversal from the second measuring point and finding subsequent point, and repeating said method and judge；
) experience step) if not judging that signal is periodic signal afterwards, then server reads the time and voltage that after client emulates, in the emulation data file of normal signal or fault-signal, test point is comprised, the signal of telecommunication numerical value such as electric current, and be saved in array, ergodic data finds maximum and the minima of voltage, calculate the intermediate value of voltage, by cycle criterion voltage at a upper time point less than intermediate value, future time point then records the time of this point more than intermediate value, after having traveled through array, judge that the time difference in each interval predicates periodic signal if less than 10%.
Owing to have employed above-mentioned technical scheme, compared with prior art, acquired technological progress is the present invention:
(1) present invention can emulate the circuit of various tested electronic equipment by the simulation software carried in client and replace tested electronic equipment, and directly utilize fault or the normal signal of each test point of the virtual technology simulation tested electronic equipment of generation on the client, and without tested electronic equipment being directly injected into physical fault signal, can not only obtain the function of test equipment, performance, and ensure that the safety of tested electronic equipment；
(2) present invention uses the simulation software carried in client can emulate the circuit of various tested electronic equipment, it is possible to emulating all kinds of different tested electronic equipment, the versatility making the present invention is higher, and cost is lower, and is easy to promote.
In sum, highly versatile of the present invention, low cost, it is easy to promote, and all tested electronic equipments is all suitable for.
The present invention is applicable to arbitrarily test device is carried out function, performance test.
The present invention is described in further detail below in conjunction with specific embodiment.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the embodiment of the present invention 1；
Fig. 2 is the flow chart of the embodiment of the present invention 2.
Detailed description of the invention
Embodiment
1
The universal test frock of testing for electrical equipment device
Present embodiments provide the universal test frock of a kind of testing for electrical equipment device, as it is shown in figure 1, it includes:
Client, client in the present embodiment uses computer of the prior art, it is equipped with the simulation software (the Pspice software such as electronic equipment emulated) setting up tested electronic equipment phantom on the client, set up the circuit simulation model of tested electronic equipment by described simulation software after, this circuit model of simulation run, client obtains emulating that tested electronic equipment is normal and fault-signal, and preserves the signal of telecommunication emulation data of each tested pilot.
Server, the parameter of client can be obtained and be analyzed data forming control signal, described server uses Delphi programming language of the prior art exploitation to realize, on it, storage has analysis and processing program, can be analyzed the parameter obtained from client processing, final generation controls to send out under parameter, and the server in the present embodiment connects client by network.
Instrument and equipment, produces various control parameters for receiving the control of server, and the parameter provided according to server produces various normal or faulty physical signal, and send out.Instrument and equipment in the present embodiment is as it is shown in figure 1, include the control unit as control centre, and is converted into the normal or converting unit of faulty physical signal for server transmits the data signal come, and wherein control unit uses Visual of the prior art
Studio developing instrument Driver Development based on PXI board realizes, and converting unit uses signal based on PXI bussing technique of the prior art to produce board；Described control unit is connected with client by network, and the control signal outfan of control unit connects the signal input part of converting unit, the normal or faulty physical signal of described converting unit output.
Test adapter, for the physical signalling that instrument and equipment produces being sent to follow-up test equipment, the physical signalling transmitted instrument and equipment by test equipment is tested, finally give corresponding the test function of equipment, performance, described test adapter uses universal test panel of the prior art to install equipment under test instrument connection or test interface additional, follow-up test equipment is then existing structure in prior art, the signal input of described test adapter connects instrument and equipment by coaxial cable, and the signal output of test adapter is directly connected to test equipment.
Embodiment
2
A kind of method of testing of the universal test frock of testing for electrical equipment device
Present embodiments providing the method for testing of a kind of embodiment 1, it includes the following steps carried out successively:
One) staff utilizes client to set up the circuit simulation model of tested electronic equipment, the most respectively simulation run tested electronic device circuitry normally or under failure condition, and preserves the signal of telecommunication emulation data of each measured point.
Two) server obtains signal of telecommunication emulation data by network from client, and is analyzed data processing, and produces the various parameters that can control needed for instrument and equipment.
This step includes again the following steps carried out successively:
1. server is loaded into the normal or emulation data file of fault-signal after emulating by network from client, reads the data of each test point in file, it is judged that the signal type of the data of reading.
The signal type of the data wherein read in this step includes periodic signal and nonperiodic signal, and the decision process of periodic signal is:
) first data point voltage of record, traversal array is identical until magnitude of voltage and first, record first all data arrived in second point interval, and judge that data are the most identical in data are the most interval with first in next interval with this siding-to-siding block length, if error three numbers according to this in; regard as periodic signal；If differing, starting to continue traversal from the second measuring point and finding subsequent point, and repeating said method and judge；If this step judging, signal is unsatisfactory for the condition of periodic signal, not representing measured signal is nonperiodic signal, this is because common periodic signal is square-wave signal and sine wave signal, in order to improve the precision of the present embodiment, first to being whether the judgement that carries out of square-wave signal in this step, if it is determined that not being, needing to determine whether sine wave period signal, i.e. entering next step.
) experience step) if not judging that signal is periodic signal afterwards, then server reads the time and voltage that after client emulates, in the emulation data file of normal signal or fault-signal, test point is comprised, the signal of telecommunication numerical value such as electric current, and be saved in array, ergodic data finds maximum and the minima of voltage, calculate the intermediate value of voltage, by cycle criterion voltage at a upper time point less than intermediate value, future time point then records the time of this point more than intermediate value, after having traveled through array, judge that the time difference in each interval predicates periodic signal if less than 10%.
2. process accordingly according to the signal type reading data, and computing equipment equipment needs signal amplitude and the attenuation of generation.
In this step, the process for periodic signal is: calculate the frequency of periodic signal, cycle relevant parameter, and can be generated by, according to the amplitude of signal and instrument and equipment, signal amplitude and the attenuation that the amplitude limits computing equipment equipment of signal needs to produce, and the process for nonperiodic signal is: a computing equipment equipment needs signal amplitude and the attenuation produced；
3. select to need to be handed down to the test point signal of instrument and equipment according to the signal type of data, and test point signal is handed down to instrument and equipment.
In this step, the process for periodic signal is: the test point signal intercepting a cycle is handed down to instrument and equipment, then needs all data issuing test point to instrument and equipment for nonperiodic signal.
Three) instrument and equipment is produced the various normal or physical signalling of fault and is sent out by test adapter after receiving, by network, the parameter that server transmits.
Four) after the various normal or physical signalling of fault that test equipment is spread out of by test adapter receiving instrument equipment, this physical signalling is tested accordingly, finally give the performance of tested electronic equipment.
Claims (7)
1. a universal test frock for testing for electrical equipment device,It is characterized in that:It includes setting up tested electronic equipment phantom and the tested electronic equipment of emulation is normal and the client of fault-signal, the parameter of client can be obtained and data are analyzed being formed the server of control signal, the control receiving server produces the various normal or instrument and equipment of faulty physical signal, described client is connected by network with server, the control signal outfan of server connects the signal input part of instrument and equipment by network, the signal output part of described instrument and equipment is connected by the test equipment of test adapter with the physical signalling sent out for test instrunment equipment.
The universal test frock of testing for electrical equipment device the most according to claim 1,It is characterized in that:Described instrument and equipment includes the control unit as control centre; and it is converted into the normal or converting unit of faulty physical signal for server being transmitted the data signal come; described control unit is connected with client by network; the control signal outfan of control unit connects the signal input part of converting unit, and the normal or faulty physical signal of described converting unit output is by coaxial cable connecting test adapter.
The universal test frock of testing for electrical equipment device the most according to claim 2,It is characterized in that:Described converting unit is that signal based on PXI bussing technique produces board.
4. a method of testing for the universal test frock of testing for electrical equipment device, universal test frock based on the testing for electrical equipment device described in any one in claims 1 to 3 completes,It is characterized in that:It includes the following steps carried out successively:
One) staff utilizes client to set up the circuit simulation model of tested electronic equipment, the most respectively simulation run tested electronic device circuitry normally or under failure condition, and preserves the signal of telecommunication emulation data of each measured point；
Two) server obtains signal of telecommunication emulation data by network from client, and is analyzed data processing, and produces the various parameters that can control needed for instrument and equipment；
Three) instrument and equipment is produced the various normal or physical signalling of fault and is sent out by test adapter after receiving, by network, the parameter that server transmits；
Four) after the various normal or physical signalling of fault that test equipment is spread out of by test adapter receiving instrument equipment, this physical signalling is tested accordingly, finally give the function of tested electronic equipment, performance.
The method of testing of the universal test frock of testing for electrical equipment device the most according to claim 4,It is characterized in that:Described step 2) include the following steps that carry out successively:
1. server is loaded into the normal or emulation data file of fault-signal after emulating by network from client, reads the data of each test point in file, it is judged that the signal type of the data of reading；
2. process accordingly according to the signal type reading data, and computing equipment equipment needs signal amplitude and the attenuation of generation；
3. select to need to be handed down to the test point signal of instrument and equipment according to the signal type of data, and test point signal is handed down to instrument and equipment.
The method of testing of the universal test frock of testing for electrical equipment device the most according to claim 5,It is characterized in that:The signal type of the described step 1. middle data read includes periodic signal and nonperiodic signal；Step 2. in for the process of periodic signal be: calculate the frequency of periodic signal, cycle relevant parameter, and can be generated by, according to the amplitude of signal and instrument and equipment, signal amplitude and the attenuation that the amplitude limits computing equipment equipment of signal needs to produce, and the process for nonperiodic signal is: a computing equipment equipment needs signal amplitude and the attenuation produced；Step 3. in for periodic signal process for intercept a cycle test point signal be handed down to instrument and equipment, then need all data issuing test point to instrument and equipment for nonperiodic signal.
The method of testing of the universal test frock of testing for electrical equipment device the most according to claim 6,It is characterized in that:Described server includes the following steps carried out successively to the determination methods of periodic signal:
) first data point voltage of record, traversal array is until magnitude of voltage is identical at first, record first all data arrived in second point interval, and judge that data are the most identical in data are the most interval with first in next interval with this siding-to-siding block length, if error three numbers according to this in; regard as periodic signal；If differing, starting to continue traversal from the second measuring point and finding subsequent point, and repeating said method and judge；
) experience step) if not judging that signal is periodic signal afterwards, then server reads the time and voltage that after client emulates, in the emulation data file of normal signal or fault-signal, test point is comprised, the signal of telecommunication numerical value such as electric current, and be saved in array, ergodic data finds maximum and the minima of voltage, calculate the intermediate value of voltage, by cycle criterion voltage at a upper time point less than intermediate value, future time point then records the time of this point more than intermediate value, after having traveled through array, judge that the time difference in each interval predicates periodic signal if less than 10%.
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