CN104820635A - Method of testing robustness of closed loop protocol based on semantic analysis of dynamic script - Google Patents
Method of testing robustness of closed loop protocol based on semantic analysis of dynamic script Download PDFInfo
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Abstract
The invention discloses a method of testing robustness of a closed loop protocol based on semantic analysis of a dynamic script, including steps of: building a test environment; conducting signal interaction between a smart telecontrol device and a protection device and a measuring and control device, receiving data signals coming from the protection device and the measuring and control device, and conducting information interaction with automatic testing software through a remote transmission communication protocol; using the automatic testing software to conduct output control over a tester through dynamic script language to make the protection device and the measuring and control device to send and transmit signals to the smart telecontrol device; sequentially controlling testing process of the smart telecontrol device by the automatic testing software, receiving messages delivered by the smart telecontrol device and using dynamic script to analyze the messages from the smart telecontrol device so as to produce a test report. The method makes it possible to flexibly compile and edit a test case and the test report, is universally applicable and significantly improves the testing efficiency and the correctness and reliability of the test result.
Description
Technical field
The present invention relates to technical field of electric power communication, particularly relate to a kind of self-closing ring gauge of resolving based on dynamic script semanteme in electric power communication protocol test analysis and be about robustness testing method.
Background technology
Along with the fast development of society, require more and more higher to the stable of intelligent grid and health, the requirement of scheduling station to plant stand is also more and more higher, and be the major equipment of station end communication as intelligent grid terminal device RTU, its quick and stable communication seems particularly important.So for each robotization producer, new telemechanical apparatus all needs full test terminal RTU being carried out to application function and communication reliability before networking, more and more in detail and under diversified demand, communication protocol function point also gets more and more, traditional method of testing not only workload is large but also dry as dust, easy generation blind spot, be badly in need of new large scale test method, also new method of testing is had higher requirement, only have and meet these demands simply, fast, the safe and stable operation that just can be intelligent grid provides safeguard.
At present for each power automation producer; the test of intelligent telecontrol device is still by building Small Substation environment dosage by experiment on the secondary devices such as protection, observing and controlling; in the correctness of the artificial cross-check information one by one of simulation main website; for the checking of what's new; not only to test new function items; also need to carry out a large amount of regression tests; for negative testing; the modes such as improper message are used to carry out the robustness of proving program; also need a large amount of human resources, for this test pattern, not only intricate operation, workload are huge.And correctness can not be guaranteed.The present invention proposes a kind of self-closing ring gauge of resolving based on dynamic script semanteme and is about robustness testing method, protocol convert method can be allowed easier and make the correctness of test result obtain strong guarantee.
Summary of the invention
The self-closing ring gauge that technical matters to be solved by this invention is to provide a kind of intelligent telecontrol device is about robustness testing method, can improve the efficiency of test, confidence level and accuracy.
For solving the problems of the technologies described above, the present invention need build a micro formula test environment, comprises PC, relay-protection tester, protection and measure and control device, intelligent telecontrol device.Wherein need in PC automatic test software and interface chained library are housed, automatic test software mainly completes the display of content measurement, mutual, the response of simulating main station system with user profile, can flexible configuration dynamic script, and according to script, automatic comparison is carried out to data, provide test report according to collation.Interface chained library mainly completes test script conversion, such as test script is become message and send to plant stand, also script can be become instruction and be handed down to testing tool, and accept plant stand end message and judge that whether message information is correct with script, thus spanned file passes to automatic test software.
The operational order of relay-protection tester primary responsibility receiving interface link library, then give protection and measure and control device by order data distributing, complete content measurement.
Protection and measure and control device primary responsibility receive the data of relay-protection tester, and the information correct to intelligent telecontrol device exports.
Intelligent telecontrol device not only needs to carry out communication receiving/transmission information with protection supervisory equipment; the more important thing is that being responsible for running all stipulations programs (such as IEC101, IEC104 etc.) to be tested is connected with automatic test software, be received from message that automation testing software issues and give corresponding response.
Whole step is as follows:
Step (1) builds test environment, by switch by PC, and protection, measure and control device, tester, the normal information interaction of intelligent telecontrol device energy.
The all equipment needing communication in test environment are configured in intelligent telecontrol communication machine, in standing, communication can use but be not limited to IEC 60870-5-103 stipulations or IEC 61850 stipulations, also need after more than completing to be configured outgoing message, in teletransmission point table, the data such as remote signalling, remote measurement, remote control, remote regulating are selected, on after allowing corresponding signal change, give the software of the automatic test in PC.
Automatic test software need allow tester use dynamic script language to be configured method of testing, test process, the final standard reporting formats formed, and makes automatic test software and intelligent telecontrol communication machine and relay-protection tester have normal information interaction.Automated test tool can control the output of tester, allows protection and measure and control device produce signal.
Step (2) intelligent telecontrol device is as measurand; to carry out signal mutual with protection and measure and control device; this signal is alternately including but not limited to IEC 60870-5-103 stipulations or IEC 61850 stipulations message, and wherein intelligent telecontrol device and automatic test software are as the client of IEC 60870-5-103, IEC 61850.
Step (3) measurand intelligent telecontrol device receives the data-signal coming from protection supervisory equipment, carries out information interaction by teletransmission communications protocol and automatic test software simultaneously.
Step (4) automatic test software carries out output by dynamic script language to relay-protection tester and controls, and makes protection, measure and control device produces signal give intelligent telecontrol device.By automatic test software, sequential control is carried out to the testing process of intelligent telecontrol communication machine again, and receive the message of intelligent telecontrol device transmission, use dynamic script to resolve the message that intelligent telecontrol device sends simultaneously, whether checking is consistent with expection, thus forms a kind of test environment from closed loop unifying to control to resolve.
Step (5) automatic test software is resolved by script one by one teletransmission communications protocol message, is proofreaded, and according to collation, fills in test result according to the report template configured by script, provide test report.
Above-described distant communication protocol massages comprises the general teletransmission protocol massages such as IEC 60870-5-101, IEC 60870-5-104, CDT.
Above-described data comprise " four is distant " data of power remote.
Above-described dynamic script language configuration comprises:
Dynamic script language is used to create different messages.It can realize stipulations message manufacture flexibly, and establishment message out be there will not be on the basis that script logic is correct resemble other testing tools cannot the situation of calculation check code automatically, the correctness of outgoing message can be ensured, especially extraordinary effect can be played for negative testing and when testing Procedure Haleness.
Dynamic script language is used to carry out real time parsing to stipulations message.It can utilize program to cut by byte the binary data received, and obtains data subsidiary in message, comprises the type identification of message, transmits reason, imformosome address and imformosome content etc., and by data writing device data model.Use dynamic script language to resolve this type of data again, and can judge that whether the message received is correct according to script logic, even the message of mistake, also can analyze, and the place that points out faults.
Use dynamic script language to the process management and control of stipulations message transmissions, stipulations message transmissions has question and answer mode and active upload two kinds of modes.Specific data manipulation (such as revise definite value, throw and move back pressing plate) has specific communication process, the link of these processes comprises: the process of the transmission of communication command message, the response of communication command message, communication time-out, communication process carries out the process of redirect according to communication packet.
Dynamic script language is used to edit test template.Tester needs before test first according to the requirement of test, the cycle tests of test request is met with dynamic script language editor, comprising the condition that the feedback in the time response of testing, input, output, test process and test are passed through at every turn, the combination of these test cases is test template.Autotest program can carry out testing or instruct tester's substep to test according to test template automatically.Support in template to check the function of self error message, self-inspection content comprises that the calculation of fault script of project and result calculate the grammar mistake of script, parameter quotes path error etc.
Use dynamic script language to the editor of report template, report template is the Visualization Model realizing being carried out in the data in test template and report file position associating.Report template editor can directly open Word program, in Word program, perform relevant operation.
Report template can carry out following operation editor:
Select the data defined in test template, select position corresponding in report, create mapping relations between the two;
The mapping relations of test template data and reported position can be deleted;
When setting up mapping relations, precision that data fill in, the data of filling in whether tape unit can be defined;
For the classification of a project, can defined range, when testing, if this classification not test, then from report, this part can be deleted;
The selection of quick switch test project and the selection of test event test parameter, the insertion of mapping relations, data precision are the selection of number.
Dynamic script language is encompassed in all writing, and their can be used flexibly, and can describe complete method of testing and test process.Perform script and send message, and according to script, analysis judgment is carried out to Telecontrol Protocol message, form the reporting format of standard and fill in, finally completing test.
Above-described automatic test software both can be used as control end and also can be used as receiving end, carried out control and exported, protection, the remote signalling of measure and control device, telemetry are updated to Commissioning of Relay Protection instrument.Data after renewal can give intelligent telecontrol device by network in station, then give automatic test software by distant communication agreement and form closed loop.As control end, automatic test software not only can control the output of relay-protection tester by dynamic script language, makes protection, measure and control device generation signal, can also carry out sequential control to the testing process of intelligent telecontrol device.As receiving end, automatic test software can receive the message that intelligent telecontrol device sends, and use dynamic script to resolve the message that intelligent telecontrol device sends, whether checking is consistent with expection, thus forms a kind of test environment from closed loop unifying to control to resolve.Like this can optimal inspection flow process greatly, after determining testing scheme, intelligent telecontrol device is tested automatically, and provide the test report of customization.
The above test environment and dynamic script semanteme are resolved and are used for robotization producer in the test of intelligent telecontrol device development, integration testing and regression test from closed loop test method.
Above-described test report refers to after autotest program often executes a test case, can script return command be kept in data logging, after all test cases are all finished, automatic test program can according to raw log files and report template, and correspondence is filled up in each test event.Public lecture is recorded as the test analysis report of use-case by number percent according to report template, and whether each passes through, and all can have and clearly record mark, if there is the use-case of failure, then can record detailed order returned packet, to analyze concrete failure cause.If test report to increase test case or because of other demands upgrade record format and content time, can modify to report template at any time.Test Engineer only needs to check this report, just can understand detailed test result.
The present invention's advantage is compared with prior art:
The invention provides a kind of self-closing ring gauge of resolving based on dynamic script semanteme and be about robustness testing method, not only can replace the artificial conventional test methodologies to stipulations program verification, all right editor's test case and test report flexibly; Not only highly versatile, is convenient to study and creates more versatility example fast, can also accurately, reliably, fast comprehensively test tested stipulations program.Once test case is ripe, this test case can directly be used in regression test, substantially increases correctness and the reliability of testing efficiency and test result.
Accompanying drawing explanation
Fig. 1 is the communication structure figure of test environment;
Fig. 2 is closed loop test process flow diagram;
Fig. 3 is the schematic flow sheet that intelligent telecontrol device dynamic script of the present invention semanteme resolves that self-closing ring gauge is about robustness testing method.
Embodiment
Shown in Fig. 1 is the communication structure of micro formula test environment; with interior IEC 61850 stipulations of standing; teletransmission IEC 60870-5-104 stipulations are example, comprise PC, communication switcher, relay-protection tester, protection and measure and control device, intelligent telecontrol device in this environment.Wherein need in PC automatic test software and interface chained library are housed.The object of this communication structure is that automatic test software not only needs and telemechanical apparatus communication, receive and dispatch 104 messages, but also need to carry out communication with tester, drive tester to send GOOSE, SV data by interface chained library, thus automatically produce remote signalling displacement, automatically add remote measurement amount etc.Intelligent telecontrol device needs and protection supervisory equipment communication, is realized the function of remote signalling, remote measurement, remote control and remote regulating by IEC 61850 stipulations.Relay-protection tester needs to carry out fiber optic links with protection, measure and control device, receives GOOSE, SV message of tester, thus produces remote signalling displacement, remote measurement message.
Shown in Fig. 2 is the flow process of closed loop test, with interior IEC 61850 stipulations of standing, teletransmission IEC 60870-5-104 stipulations are example, the message received and dispatched between PC and intelligent telecontrol device is 104 messages that we need to test, tester and protection, measure and control device is used to the means of the automatic test realizing closed loop, tester is driven automatically to add analog quantity and intake by automatic test software and interface chained library, measure and control device produces remote measurement and remote signalling, telemechanical apparatus is made to send corresponding 104 remote signalling and remote measurement message by interior stipulations of standing, thus realize the automatic test of closed loop.
Fig. 3 is the process flow diagram that intelligent telecontrol device dynamic script semanteme resolves that self-closing ring gauge is about robustness testing method, comprises the following steps:
Step (1) builds test environment, can carry out normal information interaction by switch by PC, protective device, measure and control device, tester, intelligent telecontrol device.
The all equipment needing communication in test environment are configured in intelligent telecontrol communication machine, in standing, communication is including but not limited to IEC 60870-5-103 stipulations or IEC 61850 stipulations, also need after more than completing to be configured outgoing message, in teletransmission point table, the data such as remote signalling, remote measurement, remote control, remote regulating are selected, on after allowing corresponding signal change, send scheduling station.
Automatic test software need allow tester use dynamic script language to be configured method of testing, test process, the final standard reporting formats formed, and makes automatic test software and intelligent telecontrol communication machine and relay-protection tester have normal information interaction.Automated test tool can control the output of tester, allows protection and measure and control device produce signal.
Step (2) intelligent telecontrol device is as measurand; to carry out signal mutual with protection and measure and control device; this signal is alternately including but not limited to IEC 60870-5-103 stipulations or IEC 61850 stipulations message, and wherein intelligent telecontrol device and automatic test software are as the client of IEC 60870-5-103, IEC 61850.
Step (3) measurand intelligent telecontrol device receives the data-signal coming from protection supervisory equipment, carries out information interaction by teletransmission communications protocol and automatic test software simultaneously.
Step (4) automatic test software carries out output by dynamic script language to relay-protection tester and controls, and makes protective device, measure and control device produce signal and give intelligent telecontrol device.By automatic test software, sequential control is carried out to the testing process of intelligent telecontrol communication machine again, and receive the message of intelligent telecontrol device transmission, use dynamic script to resolve the message that intelligent telecontrol device sends simultaneously, whether checking is consistent with expection, thus forms a kind of test environment from closed loop unifying to control to resolve.
Step (5) automatic test software is resolved by script one by one teletransmission communications protocol message, is proofreaded, and according to collation, fills in test result according to the report template configured by script, provide test report.
Claims (10)
1. the self-closing ring gauge of resolving based on dynamic script semanteme is about a robustness testing method, it is characterized in that: comprise the following steps:
Step (1), builds test environment, carries out normal information interaction by switch by PC, protective device, measure and control device, tester, intelligent telecontrol device;
All equipment needing communication in intelligent telecontrol device in configuration testing environment, outgoing message is configured, in teletransmission point table, remote signalling, remote measurement, remote control, remote regulating data are selected, on after allowing corresponding signal change, give the software of the automatic test in PC;
Automatic test software and interface chained library are housed in PC; Automatic test software and intelligent telecontrol device, tester carry out communication, drive tester to send data by interface chained library;
Step (2), intelligent telecontrol device is as measurand, to carry out signal mutual with protection and measure and control device, this signal comprises IEC 60870-5-103 stipulations or IEC 61850 stipulations message alternately, and wherein intelligent telecontrol device and automatic test software are as the client of IEC 60870-5-103, IEC 61850;
Step (3), measurand receives the data-signal coming from protection supervisory equipment, carries out information interaction by teletransmission communications protocol and automatic test software simultaneously;
Step (4), automatic test software carries out output by dynamic script language to tester and controls, and makes protective device, measure and control device produce signal and give intelligent telecontrol device; By automatic test software, sequential control is carried out to the testing process of intelligent telecontrol device again, and receive the message of intelligent telecontrol device transmission, use dynamic script to resolve the message that intelligent telecontrol device sends simultaneously, whether checking is consistent with expection, thus forms a kind of test environment from closed loop unifying to control to resolve;
Step (5), automatic test software is resolved by script one by one teletransmission communications protocol message, is proofreaded, and according to collation, fills in test result according to the report template configured by script, provide test report.
2. self-closing ring gauge of resolving based on dynamic script semanteme according to claim 1 is about robustness testing method, it is characterized in that: in the station of test environment, communication comprises IEC 60870-5-103 stipulations or IEC 61850 stipulations.
3. self-closing ring gauge of resolving based on dynamic script semanteme according to claim 1 is about robustness testing method, it is characterized in that: distant communication protocol massages comprises the general teletransmission protocol massages such as IEC 60870-5-101, IEC 60870-5-104 and CDT.
4. self-closing ring gauge of resolving based on dynamic script semanteme according to claim 1 is about robustness testing method, it is characterized in that: use dynamic script language to create different messages, and makes establishment message out correct on script logic.
5. self-closing ring gauge of resolving based on dynamic script semanteme according to claim 1 is about robustness testing method, it is characterized in that: use dynamic script language to carry out real time parsing to stipulations message, the binary data received is cut by byte, obtain data subsidiary in message, comprise the type identification of message, transmit reason, imformosome address and imformosome content, and by data writing device data model; Use dynamic script language to resolve this type of data again, and judge that whether the message received is correct according to script logic.
6. self-closing ring gauge of resolving based on dynamic script semanteme according to claim 1 is about robustness testing method, it is characterized in that: use dynamic script language to the process management and control of stipulations message transmissions, stipulations message transmissions has question and answer mode and active upload two kinds of modes, and the link of communication process comprises: process and the communication process of the transmission of communication command message, the response of communication command message, communication time-out carry out the process of redirect according to communication packet.
7. self-closing ring gauge of resolving based on dynamic script semanteme according to claim 1 is about robustness testing method, it is characterized in that: use dynamic script language to edit test template, before test first according to the requirement of test, the cycle tests of test request is met with dynamic script language editor, comprising the condition that the feedback in the time response of testing, input, output, test process and test are passed through at every turn, the combination of these test cases is test template; Automatic testing software carries out testing or instruct tester's substep to test according to test template automatically.
8. self-closing ring gauge of resolving based on dynamic script semanteme according to claim 1 is about robustness testing method, it is characterized in that: use dynamic script language to edit report template, after autotest program often executes a test case, script return command is kept in data logging, after all test cases are all finished, automatic test software is according to raw log files and report template, and correspondence is filled up in each test event.
9. self-closing ring gauge of resolving based on dynamic script semanteme according to claim 1 is about robustness testing method, it is characterized in that: dynamic script language is encompassed in all writing, and is used for describing complete method of testing and test process; Perform script and send message, and according to script, analysis judgment is carried out to Telecontrol Protocol message, form the reporting format of standard and fill in, finally completing test.
10. self-closing ring gauge of resolving based on dynamic script semanteme according to claim 1 is about robustness testing method, it is characterized in that: automatic test software both as control end also as receiving end, carry out output to tester to control, make protection, the digital & analog signal data of measure and control device are updated, data after renewal give intelligent telecontrol device by network in station, then give automatic test software by distant communication agreement and form closed loop;
During as control end, automatic test software controls the output of tester by dynamic script language, makes protection, measure and control device generation signal, and carries out sequential control to the testing process of intelligent telecontrol device;
During as receiving end, the message that automatic test software receipt intelligent telecontrol device sends, and use dynamic script to resolve the message that intelligent telecontrol device sends, whether checking is consistent with expection, thus forms a kind of test environment from closed loop unifying to control to resolve.
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