CN102570598A - Working method of comprehensive automatic device architected on virtual instrument technology - Google Patents
Working method of comprehensive automatic device architected on virtual instrument technology Download PDFInfo
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- CN102570598A CN102570598A CN2010106085128A CN201010608512A CN102570598A CN 102570598 A CN102570598 A CN 102570598A CN 2010106085128 A CN2010106085128 A CN 2010106085128A CN 201010608512 A CN201010608512 A CN 201010608512A CN 102570598 A CN102570598 A CN 102570598A
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Abstract
The invention relates to a working method of a comprehensive automatic device architected on a virtual instrument technology. The comprehensive automatic device can make full use of limited lower computer resources to be architected on the virtual instrument technology. The comprehensive automatic device comprises an upper computer and a lower computer architected by the virtual instrument technology. A test method is carried out by the following steps of: selecting a test software module according to the project requirements in the upper computer; dividing programs in the upper computer into a real-time program, a near real-time program and a non real-time program by the upper computer according to a dividing program; transmitting the real-time program to the lower computer by the upper computer, receiving the real-time program by the lower computer, and taking over a DSP (digital signal processor) microprocessor and controlling the DSP microprocessor to run by the real-time program; aligning the real-time program and the non real-time program with the upper computer for calculating; processing various real-time information outside and calculating the real-time program by the lower computer; transmitting a calculation result to the lower computer according to an instruction of transmitting an instruction program, and exchanging data with the lower computer by the upper computer; and responding and performing the instruction of the upper computer by the lower computer. Strong recorded wave analysis and online display detection functions are realized.
Description
Technical field
The present invention relates to a kind of method of testing, relate in particular to the method for work of comprehensive automation device for the electric power system tester that contains virtual instrument technique.
Background technology
Virtual instrument (Vis μ al Instr μ ctions) technology is the product that modem computer systems and instrument system technology combine, and is an important technology in computer nowadays subtest (CAT) field.It is promoting traditional instrument and is developing towards intellectuality, modularization, virtual, networked direction.Along with the develop rapidly of the scale and the technical merit of electric power system, be to ensure power system security operation reliably and obtain higher economic benefit, the parameter kind and the project that in production divisions such as power plant, electric substation, require to monitor also get more and more.And traditional measuring instrument is in analysis-by-synthesis, assessment to measured parameter, information exchange with the aspect such as share and exist serious defective.Virtual measurement instrument based on the microcomputer hardware platform obtains application more and more widely in many departments at present.
At present, utilize the LabView platform of the main employing NI company of virtual instrument technique development and testing equipment in the electric power system.The LabView platform has good graphical interfaces, powerful function library etc.But it also has some shortcomings, and most importantly real-time is not high, though the user can be optimized the exigent subprogram code of real-time, its efficient is because the non real-time property of Windows operating system can not reach real-time requirement fully.And a lot of requirements have Transient-State Analysis of Power System in the electric power system testing equipment, and this requires very high to real-time.
For satisfying the requirement of this high real-time, a lot of power test equipment have adopted special hardware to add some real time operating systems modes such as (like VxWorks).But this has deviated from the original intention of virtual instrument (Vis μ al Instr μ ctions) technology again; Make that the upgrade maintenance of instrumentation is very inconvenient; And function singleness and defectiveness; For example do not have enough spaces to come reservoir data, can not show result in real time, because the defective of specialised hardware circuit aspect multiplication and division has to reduce computational accuracy etc.
Summary of the invention
The present invention is directed to above problem; Provide a kind of in upper and lower machine structural system; Give full play to both service behaviours, and then help the function expansion, and can make full use of the method for work of the comprehensive automation device of framework on virtual instrument technique of limited slave computer resource.
Method of testing of the present invention is: said comprehensive automation device comprises host computer and the slave computer through the virtual instrument technique framework;
Said host computer adopts PC, contains the memory that stores some comprehensive automation test event software modules among the said PC;
Said slave computer comprises DSP microprocessor, twoport internal memory and interface circuit;
Adopt pci bus to link to each other between said host computer and the slave computer;
Also include the transfer instruction program of judging each program, data-transmission mode by the partition program of each program property of time characteristic division with by the result of partition program in the memory of said host computer PC;
The twoport internal memory and the slave computer DSP microprocessor of said slave computer are vacant in initial condition;
All working procedures of DSP microprocessor all are that PC downloads in test process in the internal memory of said DSP microprocessor, and the internal memory of said DSP microprocessor returns to initial vacant state after the test completion;
Said method of testing is carried out as follows:
1), in host computer, selects the testing software module according to project demands;
2), host computer is real-time program, quasi real time program and non real-time program according to partition program with the procedure division in the host computer;
Said real-time program is: system makes the program of response to specific incident in less than 1ms;
Said quasi real time program is: system makes the program of response to specific incident at 1ms to 10s;
Said non real-time program is: the program of not having corresponding time requirement;
3-1), host computer is transferred to slave computer with real-time program, after slave computer received real-time program, this real-time program was taken over the DSP microprocessor, controls its operation;
3-2), host computer is aimed at real-time program, the non real-time program is calculated;
3-3), slave computer is handled outside various real time information and real-time program calculating.
4), host computer is transferred to slave computer with result of calculation by the instruction of transfer instruction program, and with the slave computer swap data;
5), slave computer responds the instruction of host computer, and carries out.
Described comprehensive automation device also comprises the GPS communication device that is used between host computer and slave computer, carrying out telecommunication.
Said some comprehensive automation test event software modules comprise the device communication; Remote control; Remote measurement; Action event; The incident snowslide; The remote signalling response time; Pulsed quantity; Alternating current-direct current six tunnel outputs; Status switch; Three-phase and six phase are differential; Alternation output; Voltage protection; Current protection; Press off lock and power direction again; Lock-on relay; Direct current and auxiliary relay; The fault playback; Frequency test; The UFLS definite value; The UFLS time-delay; Low all slippage locking values; The low-voltage lockout definite value; Time response; The test same period; System oscillation; Route protection; Harmonic test; The harmonic wave stack; Total group test; Impedance operator; The failure wave-recording appearance; The high accuracy number multimeter; Harmonic analyzer and dual channel oscilloscope test module.
The present invention divides between treatment region according to time response, calculates in conjunction with the layering of upper and lower computer, and then solves the not high method of testing of real-time.It has adopted the thorough isolation technics of system's slave computer software and hardware, helps function expansion, makes full use of limited slave computer resource, makes that the response of system is more timely, and data-handling efficiency is higher.At last, the present invention also utilizes mechanics of communication and tested device to carry out data communication, controls tested device and obtains test result, has realized automatic test, has avoided the human operational error, improves testing efficiency.The present invention has realized the characteristics of the high-speed real-time of proprietary instrument, and the intellectuality of general virtual instrument is also arranged, powerful, easy to maintenance characteristics.Analysis-by-synthesis, assessment have been solved, the problem of information exchange and aspects such as sharing to measured parameter.Powerful record wave analysis and online demonstration measuring ability are for example arranged.
Description of drawings
Fig. 1 is a fundamental diagram of the present invention
Fig. 2 is the flow chart of method of testing of the present invention
Fig. 3 is an operation principle block diagram of the present invention
Fig. 4 is the sketch map of the present invention's functional software framework form when working
Fig. 5 is the sketch map of functional software framework form in the background technology of the present invention
Embodiment
The present invention is like Fig. 1,2, shown in 3, and said comprehensive automation device comprises host computer and the slave computer through the virtual instrument technique framework;
Said host computer adopts PC, contains the memory that stores some comprehensive automation test event software modules among the said PC;
Said slave computer comprises DSP microprocessor, twoport internal memory and interface circuit;
Adopt pci bus to link to each other between said host computer and the slave computer;
Also include the transfer instruction program of judging each program, data-transmission mode by the partition program of each program property of time characteristic division with by the result of partition program in the memory of said host computer PC;
The twoport internal memory and the slave computer DSP microprocessor of said slave computer are vacant in initial condition;
All working procedures of DSP microprocessor all are that PC downloads in test process in the internal memory of said DSP microprocessor, and the internal memory of said DSP microprocessor returns to initial vacant state after the test completion;
Said method of testing is carried out as follows:
1), in host computer, selects the testing software module according to project demands;
2), host computer is real-time program, quasi real time program and non real-time program according to partition program with the procedure division in the host computer;
Said real-time program is: system makes the program of response to specific incident in less than 1ms; The program that promptly must in less than 1ms, respond to specific incident (timer, external interrupt, pulse etc.).For example in the D/A output waveform program, require every 20ms to export 2000 points, timer is set to 10 μ s, and this program must can not be missed one at timer of per 10 μ s response, and the time error maximum can not 10 μ s; If timer sends 10 μ s behind the signal, not response or do not handle of program will influence output, and it is irregular that output waveform becomes.
Said quasi real time program is: system makes the program of response to specific incident at 1ms to 10s; Consistent with top real-time program definition in fact, unique difference is that time restriction is 1ms to 10s, and this program is harsh unlike real-time program to the time response of incident.But quasi real time also have time restriction, if quasi real time program do not respond also can be influential to system.For example slave computer sends data to host computer, and the time restriction of host computer is 1ms, and slave computer is that regularly 100 μ s (very accurate) send interrupt requests to host computer; Host computer can be missed or delayed response; As long as at 1ms with interior just passable, ten interruptions (0 μ s, the 100 μ s that send continuously of slave computer just; 200 μ s ...) in, one of them is just passable as long as host computer can respond; If host computer postpones to respond one of them again behind the 1ms, the data in its slave computer twoport internal memory are not the data that this interruption is sent, but the data that next group (ten) interrupts, will produce data error.
Said non real-time program is: the program of not having corresponding time requirement; This program is exactly that its operation and operating lag have produced not influence to system.Print routine for example, the speed of its speed even printer fault can not produce test result and disturb.
3-1), host computer is transferred to slave computer with real-time program, after slave computer received real-time program, this real-time program was taken over the DSP microprocessor, controls its operation;
3-2), host computer is aimed at real-time program, the non real-time program is calculated;
3-3), slave computer is handled outside various real time information and real-time program calculating.
4), host computer is transferred to slave computer with result of calculation by the instruction of transfer instruction program, and with the slave computer swap data;
5), slave computer responds the instruction of host computer, and carries out.
Described comprehensive automation device also comprises the GPS communication device that is used between host computer and slave computer, carrying out telecommunication.
Said some comprehensive automation test event software modules comprise the device communication; Remote control; Remote measurement; Action event; The incident snowslide; The remote signalling response time; Pulsed quantity; Alternating current-direct current six tunnel outputs; Status switch; Three-phase and six phase are differential; Alternation output; Voltage protection; Current protection; Press off lock and power direction again; Lock-on relay; Direct current and auxiliary relay; The fault playback; Frequency test; The UFLS definite value; The UFLS time-delay; Low all slippage locking values; The low-voltage lockout definite value; Time response; The test same period; System oscillation; Route protection; Harmonic test; The harmonic wave stack; Total group test; Impedance operator; The failure wave-recording appearance; The high accuracy number multimeter; Harmonic analyzer and dual channel oscilloscope test module.
During application, because the optimization of system, computing capability is strong, and output is counted close, and real-time is good, can satisfy the transient characterisitics output of protection test and the stable state accuracy requirement of supervising device simultaneously; Owing to adopted virtual instrument technique based on PC, can conveniently use serial ports or network and tested device communication, realized combining autorun certainly.
Claims (3)
1. the method for work of the comprehensive automation device of a framework on virtual instrument technique,
Said comprehensive automation device comprises host computer and the slave computer through the virtual instrument technique framework;
Said host computer adopts PC, contains the memory that stores some comprehensive automation test event software modules among the said PC;
Said slave computer comprises DSP microprocessor, twoport internal memory and interface circuit;
Adopt pci bus to link to each other between said host computer and the slave computer;
It is characterized in that: also include the transfer instruction program of judging each program, data-transmission mode by the partition program of each program property of time characteristic division with by the result of partition program in the memory of said host computer PC;
The twoport internal memory and the slave computer DSP microprocessor of said slave computer are vacant in initial condition;
All working procedures of DSP microprocessor all are that PC downloads in test process in the internal memory of said DSP microprocessor, and the internal memory of said DSP microprocessor returns to initial vacant state after the test completion;
Said method of testing is carried out as follows:
1), in host computer, selects the testing software module according to project demands;
2), host computer is real-time program, quasi real time program and non real-time program according to partition program with the procedure division in the host computer;
Said real-time program is: system makes the program of response to specific incident in less than 1ms;
Said quasi real time program is: system makes the program of response to specific incident at 1ms to 10s;
Said non real-time program is: the program of not having corresponding time requirement;
3-1), host computer is transferred to slave computer with real-time program, after slave computer received real-time program, this real-time program was taken over the DSP microprocessor, controls its operation;
3-2), host computer is aimed at real-time program, the non real-time program is calculated;
3-3), slave computer is handled outside various real time information and real-time program calculating.
4), host computer is transferred to slave computer with result of calculation by the instruction of transfer instruction program, and with the slave computer swap data;
5), slave computer responds the instruction of host computer, and carries out.
2. the method for work of the comprehensive automation device of a kind of framework according to claim 1 on virtual instrument technique; It is characterized in that described comprehensive automation device also comprises the GPS communication device that is used between host computer and slave computer, carrying out telecommunication.
3. the method for work of the comprehensive automation device of a kind of framework according to claim 1 on virtual instrument technique; It is characterized in that said some comprehensive automation test event software modules comprise device communication, remote control, remote measurement, action event, incident snowslide, remote signalling response time, pulsed quantity, alternating current-direct current six tunnel outputs, status switch, three-phase and six phase is differential, alternation output, voltage protection, current protection, press off lock and power direction, lock-on relay, direct current and auxiliary relay, fault playback, frequency test, UFLS definite value, UFLS time-delay, low all slippage locking values, low-voltage lockout definite value, time response, the test same period, system oscillation, route protection, harmonic test, harmonic wave stack, total group test, impedance operator, failure wave-recording appearance, high accuracy number multimeter, harmonic analyzer and dual channel oscilloscope test module again.
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| CN2010106085128A CN102570598A (en) | 2010-12-28 | 2010-12-28 | Working method of comprehensive automatic device architected on virtual instrument technology |
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| CN2010106085128A CN102570598A (en) | 2010-12-28 | 2010-12-28 | Working method of comprehensive automatic device architected on virtual instrument technology |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967840A (en) * | 2012-11-22 | 2013-03-13 | 辽宁省电力有限公司电力科学研究院 | Digital multimeter automatic verification system based on virtual instrument technology and control method |
| CN108804298A (en) * | 2018-06-15 | 2018-11-13 | 深圳库博能源科技有限公司 | A kind of device for the test of SCADA system response time |
| CN109714212A (en) * | 2018-12-29 | 2019-05-03 | 上海仪电物联技术股份有限公司 | A kind of method and system of dynamic construction visual instrument |
-
2010
- 2010-12-28 CN CN2010106085128A patent/CN102570598A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967840A (en) * | 2012-11-22 | 2013-03-13 | 辽宁省电力有限公司电力科学研究院 | Digital multimeter automatic verification system based on virtual instrument technology and control method |
| CN108804298A (en) * | 2018-06-15 | 2018-11-13 | 深圳库博能源科技有限公司 | A kind of device for the test of SCADA system response time |
| CN109714212A (en) * | 2018-12-29 | 2019-05-03 | 上海仪电物联技术股份有限公司 | A kind of method and system of dynamic construction visual instrument |
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Application publication date: 20120711 |