CN100334431C - An environmental stress experiment automatic test method - Google Patents
An environmental stress experiment automatic test method Download PDFInfo
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- CN100334431C CN100334431C CNB031040675A CN03104067A CN100334431C CN 100334431 C CN100334431 C CN 100334431C CN B031040675 A CNB031040675 A CN B031040675A CN 03104067 A CN03104067 A CN 03104067A CN 100334431 C CN100334431 C CN 100334431C
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Abstract
The present invention relates to an environmental stress experiment automatic test method. A testing apparatus, an environment experiment box and tested products are respectively connected with the same testing machine; the testing machine controls the environmental experiment box to offer the required test environment, and controls the testing apparatus to test the products under the conditions of different environments and different ways of the arrangement of the tested products. In the test process, the testing machine collects test data of the testing apparatus, the environment experiment box and the tested products, and automatically processes and records the data. A test report, data files or test curved lines are automatically generated after the test. The testing machine is connected with a remote end control machine which can log on to the testing machine, and environmental stress experiments are remotely monitored. The present invention has the advantage of human resource saving; the present invention makes environmental stress tests have favorable normalization and succession, and thereby, the accuracy and the efficiency of the test are improved.
Description
Technical field
The present invention relates to automatic test technology, relate in particular to a kind of environmental stress experiment automatic test method.
Background technology
At present, in product development or test process, in order to understand product serviceability, stability, environment ability to bear etc., whether check meets the standard-required of product producer, must carry out the environmental stress experiment to product.
Be illustrated in figure 1 as existing product environmental stress experiment manual testing model framework synoptic diagram, the manual testing's of product environmental stress experiment at present method of testing mainly is: by research and development slip-stick artist or Test Engineer, according to testing scheme, put up test environment, tested product is placed in the environmental experiment case, testing tool is placed on the outer product of also following of experimental box and connects circuit, and tested product by a testing machine control, is used for controlling test products or reads product information usually; The environmental experiment case also may be by a testing machine control.After test macro was ready to, by the laboratory room managing slip-stick artist, according to the planning of experiments that provides, experimental box work controled environment; Utilize testing machine control product, following configuration file etc. by research and development slip-stick artist or Test Engineer; By the Test Engineer, instrument manually is set, read the test result of the every test index of product.In test process, may be according to the actual test result of test index and the departure degree of index request, the Test Engineer relies on the test experience, the setting of own manual amendment's instrument, own or requirement research and development slip-stick artist revises the setting of product, require the laboratory room managing slip-stick artist to revise the environmental stress parameter of experimental box, these actions, may be very frequent during environmental experiment, Test Engineer and research and development slip-stick artist, laboratory room managing slip-stick artist will carry out alternately continually, only because the part that they are responsible for separately is separate.
Under the present circumstances, product environmental stress experiment manual testing's shortcoming is:
A, waste of human resource, inefficiency, need research and development slip-stick artist, Test Engineer, laboratory room managing slip-stick artist to participate in, and at test period, they must keep in the laboratory, manual record and compare test data change the environmental stress parameter according to test data.
B, standardization are poor, and test result often depends on slip-stick artist's technical merit and test experience, is difficult to guarantee consistance, and the effect that experiment reaches is also inconsistent.
C, do not have inheritance, for the higher experiment of repeatability, after preceding dough figurine tested and finishes, the back was tested again, yet wants the time of spending same.
D, manually-operated are difficult for realizing, for some experiment, necessarily require operating instrument and record data continually, by manually realizing.
E, the slip-stick artist is required not only to need to be familiar with product know-how than higher, and needs can skillfully be operated various testing tools.
Summary of the invention
Technical matters to be solved by this invention is: overcome deficiencies such as existing environmental stress experiment test efficient is low, standardization difference, a kind of method of testing that can carry out the environmental stress experiment convenient, efficiently is provided, not only save human resources, and make the environmental stress test have good standardization and inheritance, thereby improve accuracy of test and testing efficiency.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
This environmental stress experiment automatic test approach is characterized in that: testing tool, environmental experiment case and tested product are connected respectively to same testing machine, by the experiment of testing machine control carrying out automatically environmental stress, may further comprise the steps:
A, by the testing machine test environment that experimental box provides to be needed that controls environment, and the control testing tool is tested this product under the difference configuration of different environment and tested product;
In B, the test process, testing machine is gathered the test data of testing tool, environmental experiment case, tested product, and carries out the processing and the record of data automatically;
After C, test are finished, generate test report, data file or test curve automatically.
Described testing machine also links to each other with the far-end controller, and the far-end controller can sign in to testing machine, to environmental stress experiment carrying out remote monitoring.
When testing, at first select corresponding test case, determine testing tool and tested product according to test case then, generate the control corresponding bag, construct automatic test script, by test script control the carrying out automatic test of environmental stress in conjunction with testing process.
Testing machine links to each other with tested product by PORT COM, controls tested product work by sending scale-of-two or sexadecimal or character string instruction, and can inquire about the status information of tested product, gathers the information that tested product reports.
Described testing machine is by virtual instrument software framework (VISA) built-in function, control or querying command that instrument is programmed in the standard command set (SCPI) send to testing tool through serial ports or general purpose interface bus (GPIB), the work of control testing tool, but the testing tool response test returns corresponding Query Result with the querying command of machine.
Described Query Result places the internal storage or the output buffer of testing tool earlier, re-uses the VISA built-in function and reads, and reports testing machine through serial ports or gpib bus.
Testing machine also can utilize PORT COM and testing tool to communicate, sending scale-of-two or sexadecimal or character string instruction controls or inquires about testing tool, and receive the information that reports from testing tool, the information that reports places the communication port buffer zone earlier, the encapsulation function that re-uses in the instrument controlling packet reads, and reports testing machine through communication port.
Testing machine links to each other with the environmental experiment case by serial ports, and by sending controling instruction, the experimental box that controls environment carries out work, and can the parameter and the duty of environmental experiment case be inquired about by sending query statement.
Also can utilize ICP/IP protocol to set up socket (SOCKET) passage by test script and environmental experiment case Control Software, under experimental box, send instructions by environmental experiment case Control Software by test script, the experimental box that controls environment carries out work, or the transmission query statement, the parameter and the duty of environmental experiment case are inquired about.
Described test script and environmental experiment case Control Software can be positioned at same testing machine, also can be positioned at different testing machines.
Beneficial effect of the present invention is: among the present invention, test plan or scheme according to the product environmental experiment, utilize testing machine control tested product (following configuration file), control testing tool (as centre frequency, output level are set) and environmental experiment case (as downloading curve program, inquiry temperature humidity), and by testing machine (Product Status is as frame error rate etc. according to the various information that get access to; The product information that testing tool is tested is as passage general power etc.; Environmental experiment case environmental stress parameter and state are as Current Temperatures humidity etc.) and the treatment scheme that pre-establishes compare operation, and compare automatically with the product test index, realize the robotization control of product environmental experiment; At last, can generate test report and test data of experiment curve automatically, and the far-end controller can sign in to testing machine, the progress of monitoring product environmental experiment, by product environmental stress experiment test automatically, can conveniently research and develop the problem that slip-stick artist or Test Engineer more effectively find aspects such as product serviceability index, stability indicator, environment ability to bear index, and improve test accuracy and testing efficiency, in a word, the present invention has following advantage:
A, save human resources, testing efficiency height, after test environment is put up, moved automatic test script, just can be at the lab investigation scene, can remote monitoring, the record of test data and the generation of test report are all finished automatically;
B, standardization are good, and test is the crystallization of existing expert's level testing scheme of collection and test experience automatically;
C, inheritance are good, write the automatic test script of finishing, and can repeatedly repeat to be performed, and be convenient to derive the automatic test script of more optimizing on the basis of existing test script;
D, manually-operated are easy, do certain environmental stress experiment, only need to select corresponding test case, and the corresponding test parameter of input moves in automatically testing platform in visualization interface, gives test script and goes to finish;
E, the operation slip-stick artist is required low, do not need to understand very much environment for use experimental box how, testing tool, and the knowledge of tested product.
The present invention can be applicable to the environmental stress test of all products, semi-manufacture or various components and parts.
Description of drawings
Fig. 1 is existing environmental stress experiment manual testing model framework synoptic diagram;
Fig. 2 tests automatic test model configuration diagram for environmental stress of the present invention;
Fig. 3 tests automatic test philosophy synoptic diagram for environmental stress;
Fig. 4 is one of environmental experiment case and testing machine communication scheme;
Fig. 5 is two of environmental experiment case and a testing machine communication scheme;
Fig. 6 is one of testing tool and testing machine communication scheme;
Fig. 7 is two of testing tool and a testing machine communication scheme;
Fig. 8 is tested product and testing machine communication scheme;
Fig. 9 tests the general flow synoptic diagram automatically for the environmental stress experiment.
Embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
As shown in Figure 2, the present invention by tested product (as the CDMA2000BTS complete machine), testing tool (transmitter tester, vector signal source, spectrum analyzer etc.), testing machine, far-end controller form one can be mutual Auto-Test System, wherein testing machine is used for moving hardware test platform (ATPF), the far-end controller is used for monitoring the progress of whole test, and concrete functional description is as follows:
Operation ATPF platform on the testing machine can be according to the test needs on platform, and the different test case of selecting to have write is carried out index test, and whole test process is finished automatically.
The far-end controller can be positioned at different places, as office.The far-end controller can pass through network TCP/IP, signs in to be positioned at breadboard testing machine (need obtain the authorization), and the progress of monitoring experiment, and can the direct control testing machine on the far-end controller, the carrying out of control experiment.Login software can use some business software.
Testing machine links to each other with tested product by serial ports, network interface or parallel port, can control tested product work by script, disposes, sets up basic controlling channel, Traffic Channel etc. during as the test beginning under tested product; And can inquire about the status information of tested product, as frame error rate (FER), received signal quality (RSQI) etc.
Testing machine is by serial ports, network interface, GPIB (General-Purpose Interface Bus, general purpose interface bus) or other transmission medium link to each other with testing tool, can work by the script control instrument, as test center's frequency, radio frequency output level, analysis bandwidth, video bandwidth etc. are set; And can inquire about the information of the tested product that instrument receives, as passage general power, waveform quality, time deviation, frequency departure etc.
Testing machine links to each other with the environmental experiment case by serial ports, can be by the control environment work of experimental box of script, as download temperature humidity control curve program, the experimental box switch is set, the temperature humidity working value be set, the temperature humidity actual value of inquiry environmental experiment case and duty etc.
Only need the testing tool of tested product, use to be controlled by script, testing process and index test scheme according to planning, write test script, just can realize the interaction control of testing tool, tested product, realize the automatic control of whole test system.
Briefly describe environmental stress among Fig. 3 and tested automatic testing principle, at first, from test case library, downloaded certain environmental experiment test case (being natural language description) of certain product.According to test case, can know in the product, test of current tested and need testing apparatus (if the environmental experiment that uses, certainly also has the environmental experiment case), every test index and requirement and testing scheme have also been provided, simultaneously also described to do which type of environmental experiment,, temperature cycles damp and hot as high temperature, low temperature, alternation etc. can be made testing process and abnormality processing scheme thus.
According to test case and testing process, write automatic test script, in test script, write and call the function that defines in tested product controlling packet, each testing tool controlling packet.By testing scheme and testing process, determine the flow process of automatic test script, carry out the record (being saved in file) of the collection (gathering) of test data, the processing of test data (index judgement, graphical data), test data from test products, testing apparatus.
Go up certain automatic test script that operation writes at hardware test platform ATPF (AutoTest Platform), finish Automatic Control whole test activity.In the test process, gather and handle test data; At last, generate automatically test report, data file, and according to test data real-time rendering test curve etc.
As shown in Figure 4, testing machine can link to each other with the environmental experiment case by serial ports, directly communicates.Can utilize certain program language, write environmental experiment case controlling packet (package) and dynamic link libraries (DLL) as Tool Command Language (TCL:Tools CommandLanguage) or Microsoft Visual C++, realize control operation the environmental experiment case.On ATPF, move test script, use the function that defines in the controlling packet, (COM) communicates by serial ports, sending controling instruction, the experimental box that controls environment carries out work, as downloading temperature humidity control curve program, the experimental box switch is set, temperature humidity working value etc. being set; Send query statement, and read the response message that reports with the processing environment experimental box, as inquiry temperature humidity actual value, duty etc.
As shown in Figure 5, testing machine also can utilize environmental experiment case backstage Control Software to communicate indirectly.Environmental experiment case backstage Control Software provides software interface and driver package, is based on client/server (C/S) pattern, uses ICP/IP protocol (based on network interface socket SOCKET).Can use certain program language, as TCL, Microsoft Visual C++, but follow the software interface instruction of the secondary development that the backstage Control Software provides, write experimental box client controlling packet (TCL controlling packet or VC dynamic link libraries), realize indirect control (be actually control backstage Control Software and remove to operate the experimental box that controls environment) the environmental experiment case.Environmental experiment case backstage Control Software is as server end, and the experimental box controlling packet is as client; Client and server end can be positioned at same testing machine, also can be positioned at different testing machines.
On the ATPF platform, move test script, use the function that defines in the experimental box client controlling packet, between client and the server end, use network interface, open socket (SOCKET) passage and communicate, send or the receiving software interface instruction.Write interface instruction to network interface, after the experimental box Control Software of server end is received interface instruction, analyze, obtain the demand of client; The experimental box Control Software issues corresponding instruction according to the demand of client to serial ports, after experimental box is received instruction, analyzes and handles.If the interface instruction of client is a steering order, then finish the action that is provided with of appointment.If the interface instruction of client is a query statement, then experimental box is reported to serial ports or buffer zone to feedback information, the experimental box Control Software receives and handles reporting information, feedback information after handling is reported to network interface, the encapsulation function that re-uses in the client controlling packet reads, and just can get access to the Query Information of needs.
As shown in Figure 6, testing tool provides the correspondence with foreign country port of serial ports, GPIB, can use certain program language, as TCL, Microsoft Visual C++, follow the programmable instructions that instrument provides, write instrument controlling packet (TCL controlling packet or VC dynamic link libraries), realize control operation instrument.
On the ATPF platform, move test script, use the function that encapsulates in the instrument controlling packet, between testing machine and the testing tool, through serial ports or GPIB (Genaral-Purpose InterfaceBus, general purpose interface bus) communicates, send SCPI (StandardCommands for Programming Instruments, the instrument programming standard commands) instruction that instrument is supported, and receive the information that instrument reports.The instrument controlling packet is used VISA (Virtual InstrumentSoftware Architecture, virtual instrument software framework) built-in function, issues certain bar SCPI instruction to instrument, after testing tool is received instruction, carries out analyzing and processing.If the SCPI that issues instruction is a control command, then testing tool is finished the action that is provided with of appointment.If the SCPI that issues instruction is a querying command, then testing tool is reported to feedback information the internal storage or the output buffer of instrument; Can use the VISA built-in function to read, through serial ports or gpib bus, report testing machine again, and handle, obtain the information that needs through certain encapsulation function of instrument controlling packet.
As shown in Figure 7, testing tool provides the correspondence with foreign country port of serial ports, network interface, parallel port.On the ATPF platform, move test script, use the function of the definition in the instrument controlling packet, between testing machine and the testing tool, communicate through certain communication port, send scale-of-two or sexadecimal or character string instruction, and receive the information that reports from testing tool.By communication port, under instrument, send instructions, instrument carries out analyzing and processing after receiving instruction.If instrument is received steering order, then finish the action that is provided with of appointment.If instrument receives query statement, then relevant information is reported to the communication port buffer zone, re-use that certain encapsulation function reads in the instrument controlling packet, be reported to testing machine through telecommunication cable, and handle through the encapsulation function, obtain the Query Information that needs.
As shown in Figure 8, product provides externally by the communication port of secondary development, generally is serial ports, network interface or parallel port etc.Use certain program language,, follow the programmable instructions that product provides, write control of product bag (TCL controlling packet or VC dynamic link libraries), realize control operation product as TCL, Microsoft Visual C++.
On the ATPF platform, move test script, use the function of the definition in the control of product bag, testing machine and DUT (Device Under Test, tested equipment) between, communicate through certain communication port, send scale-of-two or sexadecimal or character string instruction, and receive the information that reports from product.By communication port, under DUT, send instructions, DUT carries out analyzing and processing after receiving instruction.If DUT receives steering order, then finish the action that is provided with of appointment.If DUT receives query statement, then relevant information is reported to the communication port buffer zone, re-use that certain encapsulation function reads in the control of product bag, be reported to testing machine through telecommunication cable, and handle through the encapsulation function, obtain the Query Information that needs.
Be illustrated in figure 9 as the environmental stress experiment general flow synoptic diagram of test automatically, after the initialization of environmental experiment case detects, configuration test product and testing tool, detect in environmental experiment case normal temperature working condition then, begin environmental test again, provide the test environment that needs by the environmental experiment case, testing tool is tested tested product in different environment.Environmental experiment case, testing tool, tested product are controlled automatically by testing machine in the process of the test, like this, have realized the automatic test to the entire environment stress test.
Claims (10)
1. an environmental stress is tested automatic test approach, it is characterized in that: testing tool, environmental experiment case and tested product are connected respectively to same testing machine, by the experiment of testing machine control carrying out automatically environmental stress, may further comprise the steps:
A, by the testing machine test environment that experimental box provides to be needed that controls environment, and the control testing tool is tested this product under the difference configuration of different environment and tested product;
In B, the test process, testing machine is gathered the test data of testing tool, environmental experiment case, tested product, and carries out the processing and the record of data automatically;
After C, test are finished, generate test report, data file or test curve automatically.
2. environmental stress experiment automatic test approach according to claim 1, it is characterized in that: described testing machine also links to each other with the far-end controller, and the far-end controller can sign in to testing machine, to environmental stress experiment carrying out remote monitoring.
3. environmental stress experiment automatic test approach according to claim 1 and 2, it is characterized in that: when testing, at first select corresponding test case, determine testing tool and tested product according to test case then, generate the control corresponding bag, construct automatic test script in conjunction with testing process, by test script control the carrying out automatic test of environmental stress.
4. environmental stress experiment automatic test approach according to claim 3, it is characterized in that: testing machine links to each other with tested product by PORT COM, by sending the work of scale-of-two or sexadecimal or character string instruction control tested product, and can inquire about the status information of tested product, gather the information that tested product reports.
5. environmental stress experiment automatic test approach according to claim 3, it is characterized in that: described testing machine is by virtual instrument software framework built-in function, instrument control or the querying command that standard commands concentrates of programming sent to testing tool through serial ports or general purpose interface bus, the work of control testing tool, but the testing tool response test returns corresponding Query Result with the querying command of machine.
6. environmental stress experiment automatic test approach according to claim 5, it is characterized in that: described Query Result places the internal storage or the output buffer of testing tool earlier, re-use virtual instrument software framework built-in function and read, report testing machine through serial ports or general purpose interface bus.
7. environmental stress experiment automatic test approach according to claim 3, it is characterized in that: testing machine can utilize PORT COM and testing tool to communicate, sending scale-of-two or sexadecimal or character string instruction controls or inquires about testing tool, and receive the information that reports from testing tool, the information that reports places the communication port buffer zone earlier, the encapsulation function that re-uses in the instrument controlling packet reads, and reports testing machine through communication port.
8. environmental stress experiment automatic test approach according to claim 3, it is characterized in that: testing machine links to each other with the environmental experiment case by serial ports, pass through sending controling instruction, the experimental box that controls environment carries out work, and can the parameter and the duty of environmental experiment case be inquired about by sending query statement.
9. environmental stress experiment automatic test approach according to claim 3, it is characterized in that: utilize ICP/IP protocol to set up the socket passage by test script and environmental experiment case Control Software, under experimental box, send instructions by environmental experiment case Control Software by test script, the experimental box that controls environment carries out work, or the transmission query statement, the parameter and the duty of environmental experiment case are inquired about.
10. environmental stress experiment automatic test approach according to claim 9, it is characterized in that: described test script and environmental experiment case Control Software can be positioned at same testing machine, also can be positioned at different testing machines.
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