CN103885438A - Automatic test system and method for transformer substation measurement and control device - Google Patents
Automatic test system and method for transformer substation measurement and control device Download PDFInfo
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Abstract
The invention provides an automatic test system and method for a transformer substation measurement and control device. The system comprises a test background server, an exchanger, a network tester, an intelligent tester, a three-phase standard meter, a controllable power source and a GPS clock module. The data exchanging is respectively carried out between the network tester and the test background server, between the intelligent tester and the test background server, between the three-phase standard meter and the test background server and between the controllable power source and the test background server through the exchanger, the test background server is in communication with the measurement and control device through the network protocol, the controllable power source is controlled to supply electricity to the measurement and control device, and time synchronism between the test background server and the measurement and control device is achieved through a GPS clock module. According to the automatic test system and method for the transformer substation measurement and control device, a test task can be automatically generated, detection steps can be automatically executed, detection reports can be automatically generated, the interference of artificial factors is reduced, the test randomness is removed, testing efficiency and testing reliability are improved, testing repeatability is achieved, the traceability of testing work is guaranteed, and the reliability and consistency of the test result are guaranteed.
Description
Technical field
The invention belongs to automation equipment technical field of measurement and test, be specifically related to Auto-Test System and the method for a kind of transformer station measuring and controlling equipment.
Background technology
At present, along with carrying out of intelligent grid dispatching automation and intelligent substation construction, lot of domestic and international R&D institution and colleges and universities carry out relevant intelligent substation test, Testing Technology Study work one after another, but the test of dispatching of power netwoks master station automation system is less.Some testing tool producers have started to develop the secondary device testers such as intelligent substation relay protection both at home and abroad.The electric system proving installation of OMICRON company exploitation, provides the support to IEC61850 in its version more than v2.22.The protection tester producers such as China of domestic middle unit electricity, rich electricity, wide Fu Hui have also carried out the research and development of intelligent substation protection tester; but all do not build up at present both at home and abroad the comprehensive test platform that can carry out comprehensive detection to dispatching automation and electric substation automation system; research for transformer station's measuring and controlling equipment automatic test technology does not yet have complete expansion, can not find the paper complete about this technical elements yet.
Along with the development of power automation technology, all can there be every year a lot of electric substation automation system new products to come into operation and upgrade, need to there is the testing tool of electric substation automation system and every application function, but there is no in the market the automated test tool to transformer station's measuring and controlling equipment, particularly lack the automatic detection means to transformer station's measuring and controlling equipment always, all tests substantially also rest on manual testing's stage, automaticity is not high, method of testing is also relative backward with testing tool, the standardization of test, the closed loop of test, the standardization of examining report, the transparence of test process, all there is very large shortcoming in the aspects such as the extensibility of test.For the new features of transformer station's measuring and controlling equipment test, the research intelligent substation measuring and controlling equipment new method of test automatically, can realize the automatically performing and the automatic generation of examining report of automatic generation, detecting step of test assignment, reducing artifact disturbs, get rid of test randomness, improve the reliability of testing efficiency and test, realize test repeatability, guarantee the trackability of test job, ensure reliability and the consistance of test result.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides Auto-Test System and the method for a kind of transformer station measuring and controlling equipment, can realize the automatically performing and the automatic generation of examining report of automatic generation, detecting step of test assignment, reducing artifact disturbs, get rid of test randomness, improve the reliability of testing efficiency and test, realize test repeatability, guarantee the trackability of test job, ensure reliability and the consistance of test result.
In order to realize foregoing invention object, the present invention takes following technical scheme:
The invention provides the Auto-Test System of a kind of transformer station measuring and controlling equipment, described system comprises test background server, switch, network tester, intelligent tester, three-phase standard scale, controllable electric power and gps clock module; Described network tester, intelligent tester, three-phase standard scale and controllable electric power are respectively by carrying out exchanges data between switch and test background server, described test background server communicates by procotol and described measuring and controlling equipment, controlling controllable electric power is measuring and controlling equipment power supply, realizes the time synchronized of test background server and measuring and controlling equipment by gps clock module simultaneously.
Described test background server communicates by IEC60870-5104 communication protocol or IEC61850 communication standard and described measuring and controlling equipment.
Described test background server controls controllable electric power output AC 176V～253V voltage, thus be measuring and controlling equipment power supply.
Intelligent tester described in described test background server controls, thus test process controlled, and by reading the data of three-phase standard scale and the data of measuring and controlling equipment, carry out Data Management Analysis, finally form test report.
Described system receives gps time synchronizing signal by gps clock module, to guarantee the time synchronized of test background server, intelligent tester and measuring and controlling equipment.
The present invention also provides the automatic test approach of a kind of transformer station measuring and controlling equipment simultaneously, it is characterized in that: said method comprising the steps of:
Step 1: the internal data information of measuring and controlling equipment described in described test background collection of server;
Step 2: described test background server and measuring and controlling equipment and controllable electric power communicate;
Step 3: measuring and controlling equipment is tested automatically, and controlled the test process of measuring and controlling equipment;
Step 4: read described three-phase standard scale data, itself and the measuring and controlling equipment data that gather are compared, and carry out Data Management Analysis, logging test results;
Step 5: described test background server automatic analysis test result, generates test report.
In described step 2, test background server controls controllable electric power is exported respectively the voltage of 176V, 220V, 253V, and record respectively remote measurement value, remote signalling and the remote control of measuring and controlling equipment in the time of above three electric pressures, by calculating with the intelligent tester reading and three-phase standard scale data analysis, thereby determine that the power supply of measuring and controlling equipment is in the time of 176V～253V, the correctness of its function and performance.
In described step 3, the content measurement that measuring and controlling equipment is carried out to test automatically comprises communication protocol test between measuring and controlling equipment and dispatching automation main website, the test of measuring and controlling equipment analog quantity, the test of measuring and controlling equipment digital quantity, measuring and controlling equipment time synchronized and response time test, measuring and controlling equipment power supply impact test and the test of measuring and controlling equipment stable operation timing automatic.
During between measuring and controlling equipment and dispatching automation main website, communication protocol is tested, measuring and controlling equipment meets IEC60870-5104 communication protocol or IEC61850 communication standard, produce switching value and exchange remote measurement amount by described Auto-Test System simulation, complete communication protocol test between measuring and controlling equipment and dispatching automation main website, and realize stipulations uniformity test by test background server;
Measuring and controlling equipment analog quantity test comprises basic remote measurement test and exchanges remote measurement impact and measure examination, exchange remote measurement impact measure examination comprise in frequency change impact test, three-phase current unbalance situation three-phase meritorious/reactive power test, add impact test between harmonic component voltage/current/meritorious/idle test, the test of three-phase voltage/electric current excess limit, circuit, power factor change impact test, from heat affecting test, continuous cross input after test, short-term cross input after test and fault current test;
The test of measuring and controlling equipment digital quantity comprises the test of remote signalling displacement correctness, the test of sequence of events recording station intrinsic resolution, the test of remote signalling snowslide processing power and the test of sequence of events recording anti-trembling function;
The content measurement of measuring and controlling equipment time synchronized and response time test comprises the test of measuring and controlling equipment time adjustment function, the test of remote signalling data response time and the test of telemetry response time;
In the impact test of measuring and controlling equipment power supply, controllable electric power provides power supply for measuring and controlling equipment, output direct current 253V, exchanges the following voltage of 253V, can complete the impact of measuring and controlling equipment power supply test by the output of test background server controls controllable electric power;
In the test of measuring and controlling equipment stable operation timing automatic, by test background Servers installed intelligent tester timing output, realize the fixed time test of 72 hours continous-stable energizing tests of measuring and controlling equipment.
In described step 4, thereby test background server is controlled test process by controlling intelligent tester and controllable electric power, read and on three-phase standard scale data and measuring and controlling equipment, send data and carry out Data Management Analysis, the error of measuring and controlling equipment test simulation amount need meet " GB/T13729 remote terminal unit equipment " examination criteria; Error in the time that measuring and controlling equipment is tested is the error between intelligent tester output valve and measuring and controlling equipment data.
In described step 5, first test background server generates report template according to the examining report template of setting and selected test event, according to content measurement and result of calculation, test result correspondence is inserted in report template subsequently; In this process, test background server is set different priority according to different users, reaches the requirement of controlling examining report authenticity, and increases the dirigibility of examining report.
Compared with prior art, beneficial effect of the present invention is:
Can require to realize according to each test assignment the automatically performing and the automatic generation of examining report of automatic generation, detecting step of test assignment, reducing artifact disturbs, get rid of test randomness, improve the reliability of testing efficiency and test, realize test repeatability, guarantee the trackability of test job, ensure reliability and the consistance of test result.
In addition, build by automatically testing platform, can form a set of mode that measuring and controlling equipment performance is evaluated, method and concrete index system, set up and effectively detect and evaluation criteria system, the overall performance of effective evaluation intelligent substation, promote the standardization that measuring and controlling equipment detects, and then promote the orderly, effective and practical of intelligent substation construction, create substantial economics and social benefit.
Accompanying drawing explanation
The Auto-Test System schematic diagram of Tu1Shi transformer station measuring and controlling equipment;
Fulfill testing report automatically process flow diagram in the automatic test approach of Tu2Shi transformer station measuring and controlling equipment.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1 is the transformer station's measuring and controlling equipment Auto-Test System schematic diagram based on ethernet communication, ethernet communication has that network speed is fast, broader bandwidth, network structure is simple, network equipment standard is unified, with test background computer interface feature easily, thereby the real time access between the node on network is become a reality.Each equipment in Auto-Test System connects by Ethernet, and communication protocol is used IEC60870-5104 and the IEC61850 stipulations of standard, differentiates by the IP address of different device.Auto-Test System realizes the time synchronized of automatic checkout system by gps satellite clock, can realize the operation monitoring under Unified GPS time reference of system build-in test instrument and equipment under test, improve the time accuracy of sequence of event, improve the data reliability that exchanges collection capacity, improved the accuracy of test.
Test background server, as the core component of this Auto-Test System, uses a computing machine to complete following a few partial function:
Determine according to testing requirement the content that transformer station's measuring and controlling equipment will be tested;
Thereby control intelligent tester and controllable electric power and control test process;
Read and on three-phase high precision table data and equipment under test, send data and carry out Data Management Analysis;
Generate examining report according to content measurement and test data;
The automatic test experiments platform test of transformer station's measuring and controlling equipment content:
1. the test of communication protocol between transformer station's measuring and controlling equipment and dispatching automation main website
Communication between the automatic test experiments platform device of intelligent substation measuring and controlling equipment is used the communication protocol that meets IEC60870-5104 or IEC61850 standard.First equipment under test must self meet IEC60870-5104 or IEC61850 standard in the time of access test macro, simulate by Auto-Test System in addition and produce various switching values, exchange the data such as remote measurement amount, can complete the test of the communication protocol of intelligent substation measuring and controlling equipment based on IEC60870-5104 or IEC61850 standard, can also realize stipulations uniformity test by use test backstage stipulations communication protocol testing software.
2. transformer station's measuring and controlling equipment analog quantity test
Transformer station's measuring and controlling equipment is as collection and the command executing unit of data in intelligent substation complex automatic system, an one important task has been the collection of transformer station's analog telemetering data, process and on send task, and by the analog telemetering data of sampling and then the ruuning situation that judges transformer station, for scheduling station multianalysis substation operation safety and safe operation of electric network provide comprehensive Data support, in the testing process for transformer station's measuring and controlling equipment, the collection of transformer station's measuring and controlling equipment analog telemetering data, process and on send function be also detect in important content, analog telemetering Data Detection is mainly divided into two parts and carries out:
Part I is remote measurement basic test, mainly comprises:
1. exchange remote measurement three-phase voltage, electric current (0～100% range);
2. exchange remote measurement power factor and be the active power of 1 o'clock and power factor and be the reactive power (0～100% range) of 0 o'clock;
3. active power when interchange remote measurement power factor is 0.5L, 0.5C;
4. reactive power when interchange remote measurement power factor is 0.866L, 0.866C;
5. direct current remote measurement analog input A/D error testing.
Part II is to exchange remote measurement impact to measure examination, mainly comprises:
1. frequency change impact test: 45Hz, 50Hz, 55Hz three-phase voltage, electric current, power factor is that the active power of 1 o'clock and power factor are reactive power (measuring 0～100% range) test of 0 o'clock;
2. meritorious, the reactive power test of three-phase in three-phase current unbalance situation;
3. add harmonic component voltage, electric current, meritorious, idle test;
4. three-phase voltage, electric current excess limit (120%) test;
5. impact test between circuit: (Ua=Ub=ratings, Uc=0V; Ia=Ib=0A, Ic=ratings);
6. power factor change impact test: active power (phase angle is 0 °, 70 °, 290 °) test, reactive power (phase angle is 90 °, 20 °, 160 °) test
7. test from heat affecting:
A) equipment under test start 1～3min three-phase voltage, electric current, power factor is that the active power of 1 o'clock and power factor are the reactive power (measuring 0～100% range) of 0 o'clock;
B) equipment under test start 30～35min three-phase voltage, electric current, power factor is that the active power of 1 o'clock and power x factor are the reactive power (0～100% range) of 0 o'clock;
8. cross test after input continuously: input continuously three-phase voltage, electric current 120% ratings and after two hours, test three-phase voltage, village stream, power factor is that the active power of 1 o'clock and power factor are the reactive power (0～100% range) of 0 o'clock;
9. short-term is tested after crossing input: 20 times of A/s CT rated current, 5 minutes, interval, totally five times; 2 times of V/s PT rated current, 5 minutes, interval, totally five times;
10. fault current test: electric current output (2.5In, 10In, 20In can select) test.
3. transformer station's measuring and controlling equipment digital quantity test
Transformer station's measuring and controlling equipment is as collection and the command executing unit of data in intelligent substation complex automatic system, the important task of its another one has been the collection of transformer station's related switch amount input signal, logout, isolating switch, disconnector etc. are controlled etc. to function, the i.e. collection of remote signalling in daily term, SOE and the distant control function to the primary equipment such as isolating switch, disconnector and the soft pressing plate of secondary device etc. and the remote regulating function to load tap changer etc.The sequencing of the device action such as situation and isolating switch that is analysis of failure by the collection of remote signalling, SOE provides strong evidence, for electricity net safety stable monitoring and controlling system has been created good technical conditions; By the distant control function to the primary equipment such as isolating switch, disconnector and the soft pressing plate of secondary device etc. and may for realizing that unattended operation transformer station provides to the remote regulating function of load tap changer etc.In the testing process for transformer station's measuring and controlling equipment, transformer station's measuring and controlling equipment remote signalling, SOE (sequence of events recording), distant control function are also the important contents in detecting, and digital quantity detects and mainly contains following a few part: 1. remote signalling displacement correctness test; The intrinsic resolution test of 2.SOE station; 3. remote signalling snowslide processing power test; The test of 4.SOE anti-trembling function.
4. transformer station's observing and controlling IED equipment time synchronized and response time test
Along with the raising of automation of transformation substations level; be widely used from transformer station's Computer supervisory system, microcomputer protecting device, microcomputer fault wave recording device and Various types of data supervisor comprehensive, and the cooperating of these aut.eq. need to have an accurate unified time.In the time that electric system is broken down, can realize the fault analysis after the operation monitoring under benchmark and accident at one time of the each system in full station, also can analyze by the sequencing of each protection action, switch deciliter and correct time reason and the process of accident.Along with the expansion of the increasingly sophisticated and electrical network of electrical network, provide the clock reference of standard time become transformer station and even whole electric system in the urgent need to, the unification of clock is to guarantee safe operation of power system, improving important measures of operation level, is to combine from one of basic demand of electric substation automation system.So transformer station's measuring and controlling equipment time adjustment function and remote measurement, remote signalling response time are also one of projects needing emphasis detection.
Nearly all transformer station measuring and controlling equipment time synchronized is mainly to realize based on gps clock satellite synchronization system in recent years, therefore this Auto-Test System mainly consider GPS to time mode.Main content measurement has: 1. transformer station's measuring and controlling equipment time adjustment function test; 2. remote signalling data response time test; 3. telemetry response time test.
5. transformer station's measuring and controlling equipment power supply impact test
According to " GB/T13729 remote terminal unit equipment " examination criteria, when transformer station's measuring and controlling equipment changes between rated power supply power supply-20%～15%, transformer station's measuring and controlling equipment should be able to normally be worked.On automatic test experiments platform, intelligence controllable electric power provides power supply for tested transformer station measuring and controlling equipment, it can, according to different requirement output direct current 264V, the following voltage of interchange 264V, can complete transformer station's measuring and controlling equipment power supply impact test by the output of test background control controllable electric power.
6. transformer station's measuring and controlling equipment stable operation timing automatic test
According to " GB/T13729 remote terminal unit equipment " examination criteria, transformer station's measuring and controlling equipment is no less than the energizing test of 72 hours continous-stables before dispatching from the factory, and examines its stability.By arranging in test background, intelligent tester timing output can be set, thereby realize the fixed time test of 72 hours continous-stable energizing tests.
3) the automatic test experiments platform data of transformer station's measuring and controlling equipment Treatment Analysis function
Test background not only needs to control intelligent tester and thereby controllable electric power is controlled test process, also need to read and on three-phase high precision table data and equipment under test, send data and carry out Data Management Analysis, the error that an important indicator of transformer station's measuring and controlling equipment test is analog quantity need to meet " GB/T13729 remote terminal unit equipment " examination criteria.In surveying work, a large amount of practices show, in the time a certain unknown quantity repeatedly being observed with surveying instrument, always exist difference, measuring error that Here it is between each observed reading.The reason that produces measuring error mainly contains: instrument error, observational error and external environment.Measuring error, by the reason of its generation and the difference that affects character on observed result, can be divided into systematic error, accidental error and rough error three classes.In the time that transformer station's measuring and controlling equipment is tested, main error has two kinds: 1. the error between intelligent tester output valve and transformer station's measuring and controlling equipment sampled data; 2. analog telemetering exchanges telemetry portion impact and measures the variation between result and the fundamental measurement result while examination.Test background need calculate respectively different errors output according to different test events.
4) the automatic test experiments platform of transformer station's measuring and controlling equipment generates examining report function automatically
The function that test background finally need complete is automatically to generate examining report according to content measurement and test data and result of calculation, thereby completes whole tests.First this functional test backstage needs to generate a concrete report template according to the examining report template of setting and selected test event, and test background needs test result correspondence to be inserted in report template according to content measurement and result of calculation subsequently.In this process, can set different priority according to different users, thereby not only reach the requirement of controlling examining report authenticity, also can increase the dirigibility of examining report.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although the present invention is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement the specific embodiment of the present invention, and do not depart from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.
Claims (11)
1. an Auto-Test System for transformer station's measuring and controlling equipment, is characterized in that: described system comprises test background server, switch, network tester, intelligent tester, three-phase standard scale, controllable electric power and gps clock module; Described network tester, intelligent tester, three-phase standard scale and controllable electric power are respectively by carrying out exchanges data between switch and test background server, described test background server communicates by procotol and described measuring and controlling equipment, controlling controllable electric power is measuring and controlling equipment power supply, realizes the time synchronized of test background server and measuring and controlling equipment by gps clock module simultaneously.
2. the Auto-Test System of transformer station according to claim 1 measuring and controlling equipment, is characterized in that: described test background server communicates by IEC60870-5104 communication protocol or IEC61850 communication standard and described measuring and controlling equipment.
3. the Auto-Test System of transformer station according to claim 1 measuring and controlling equipment, is characterized in that: described test background server controls controllable electric power output AC 176V～253V voltage, thus be measuring and controlling equipment power supply.
4. the Auto-Test System of transformer station according to claim 1 measuring and controlling equipment, it is characterized in that: intelligent tester described in described test background server controls, thereby control test process, and by reading the data of three-phase standard scale and the data of measuring and controlling equipment, carry out Data Management Analysis, finally form test report.
5. the Auto-Test System of transformer station according to claim 1 measuring and controlling equipment, is characterized in that: described system receives gps time synchronizing signal by gps clock module, to guarantee the time synchronized of test background server, intelligent tester and measuring and controlling equipment.
6. an automatic test approach for transformer station's measuring and controlling equipment, is characterized in that: said method comprising the steps of:
Step 1: the internal data information of measuring and controlling equipment described in described test background collection of server;
Step 2: described test background server and measuring and controlling equipment and controllable electric power communicate;
Step 3: measuring and controlling equipment is tested automatically, and controlled the test process of measuring and controlling equipment;
Step 4: read described three-phase standard scale data, itself and the measuring and controlling equipment data that gather are compared, and carry out Data Management Analysis, logging test results;
Step 5: described test background server automatic analysis test result, generates test report.
7. the automatic test approach of transformer station according to claim 6 measuring and controlling equipment, it is characterized in that: in described step 2, test background server controls controllable electric power is exported respectively the voltage of 176V, 220V, 253V, and record respectively remote measurement value, remote signalling and the remote control of measuring and controlling equipment in the time of above three electric pressures, by calculating with the intelligent tester reading and three-phase standard scale data analysis, thereby determine that the power supply of measuring and controlling equipment is in the time of 176V～253V, the correctness of its function and performance.
8. the automatic test approach of transformer station according to claim 6 measuring and controlling equipment, it is characterized in that: in described step 3, the content measurement that measuring and controlling equipment is carried out to test automatically comprises communication protocol test between measuring and controlling equipment and dispatching automation main website, the test of measuring and controlling equipment analog quantity, the test of measuring and controlling equipment digital quantity, measuring and controlling equipment time synchronized and response time test, measuring and controlling equipment power supply impact test and the test of measuring and controlling equipment stable operation timing automatic.
9. the automatic test approach of transformer station according to claim 8 measuring and controlling equipment, it is characterized in that: during between measuring and controlling equipment and dispatching automation main website, communication protocol is tested, measuring and controlling equipment meets IEC60870-5104 communication protocol or IEC61850 communication standard, produce switching value and exchange remote measurement amount by described Auto-Test System simulation, complete communication protocol test between measuring and controlling equipment and dispatching automation main website, and realize stipulations uniformity test by test background server;
Measuring and controlling equipment analog quantity test comprises basic remote measurement test and exchanges remote measurement impact and measure examination, exchange remote measurement impact measure examination comprise in frequency change impact test, three-phase current unbalance situation three-phase meritorious/reactive power test, add impact test between harmonic component voltage/current/meritorious/idle test, the test of three-phase voltage/electric current excess limit, circuit, power factor change impact test, from heat affecting test, continuous cross input after test, short-term cross input after test and fault current test;
The test of measuring and controlling equipment digital quantity comprises the test of remote signalling displacement correctness, the test of sequence of events recording station intrinsic resolution, the test of remote signalling snowslide processing power and the test of sequence of events recording anti-trembling function;
The content measurement of measuring and controlling equipment time synchronized and response time test comprises the test of measuring and controlling equipment time adjustment function, the test of remote signalling data response time and the test of telemetry response time;
In the impact test of measuring and controlling equipment power supply, controllable electric power provides power supply for measuring and controlling equipment, output direct current 253V, exchanges the following voltage of 253V, can complete the impact of measuring and controlling equipment power supply test by the output of test background server controls controllable electric power;
In the test of measuring and controlling equipment stable operation timing automatic, by test background Servers installed intelligent tester timing output, realize the fixed time test of 72 hours continous-stable energizing tests of measuring and controlling equipment.
10. the automatic test approach of transformer station according to claim 6 measuring and controlling equipment, it is characterized in that: in described step 4, thereby test background server is controlled test process by controlling intelligent tester and controllable electric power, read and on three-phase standard scale data and measuring and controlling equipment, send data and carry out Data Management Analysis, the error of measuring and controlling equipment test simulation amount need meet " GB/T13729 remote terminal unit equipment " examination criteria; Error in the time that measuring and controlling equipment is tested is the error between intelligent tester output valve and measuring and controlling equipment data.
The automatic test approach of 11. transformer station according to claim 6 measuring and controlling equipments, it is characterized in that: in described step 5, first test background server generates report template according to the examining report template of setting and selected test event, according to content measurement and result of calculation, test result correspondence is inserted in report template subsequently; In this process, test background server is set different priority according to different users, reaches the requirement of controlling examining report authenticity, and increases the dirigibility of examining report.
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| CN112556749A (en) * | 2020-11-30 | 2021-03-26 | 薛峰 | Detection method for redundant measurement and control device |
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