CN202903915U - Intelligent testing instrument of switching value plug-ins - Google Patents
Intelligent testing instrument of switching value plug-ins Download PDFInfo
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- CN202903915U CN202903915U CN 201220511703 CN201220511703U CN202903915U CN 202903915 U CN202903915 U CN 202903915U CN 201220511703 CN201220511703 CN 201220511703 CN 201220511703 U CN201220511703 U CN 201220511703U CN 202903915 U CN202903915 U CN 202903915U
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Abstract
An intelligent testing instrument of switching value plug-ins includes a power supply plug-in, a CPU plug-in, an intelligent switching plug-in, a switching value plug-in to-be-tested , a communication plug-in and a liquid crystal plug-in; the power supply plug-in is provided with two ways of output voltage, wherein one way of output voltage is 5V voltage which is used for providing a working power supply for other plug-ins, and the other way of output voltage can outputs adjustable voltage and provides testing voltage for the switching value plug-in to-be-tested; the CPU plug-in includes a CPU chip as well as a DDR chip, a 10M/100M switching controller, a high-capacity memory, a first FPGA and a CAN bus controller which are connected with the CPU chip; the communication plug-in is connected with the CPU plug-in, and includes a CAN bus, an RS485 bus, a second FPGA and a multi-channel analog switch; the intelligent switching plug-in includes multi-channel passive switching-on nodes and a switching value monitoring circuit; the intelligent switching plug-in switches on or switches off an internal relay array according to configuration commands transmitted by the FPGAs, such that input and output relation of a plug-in to be tested can be simulated.
Description
Technical field
The utility model relates to the switching value plug-in unit intelligent tester that uses in power automation secondary device production run.
Background technology
Can relate to a large amount of switching value plug-in unit (hold into, leave plug-in unit) in the power automation secondary device production run, be because each net office, area are not quite similar to the requirement of relay protection on the one hand, causes the switching value signal number a lot; Because the demand of different electric pressures, different protective devices causes the switching value plug-in unit of a great variety on the other hand.
Traditional switching value plug-in unit method of testing is: for each switching value plug-in unit, design an independent tester, dispose independently test cable, test; And in test process, also need the corresponding testing tool of manual adjustments, check the indexs such as test voltage.Traditional switching value method of testing inefficiency, and serious waste of resources.
Summary of the invention
The purpose of this utility model is: a kind of intelligent tester of switching value plug-in unit is provided, can tests various switching value plug-in units, need not to change tester, need not to change test cable, and have automatic test, self registering function.
Solution of the present utility model: the intelligent tester of switching value plug-in unit, comprise power insert, CPU card, intelligence are switched plug-in unit, measured switch amount plug-in unit, communication plug and liquid crystal plug-in unit; Power insert is provided with two road output voltages, wherein one the tunnel is output as 5V voltage, and for other plug-in unit provides working power, another road output adjustable voltage is for measured switch amount plug-in unit provides test voltage; CPU card comprises cpu chip and the DDR chip, 10M/100M on-off controller, mass storage, a FPGA and the CAN bus controller that are connected with cpu chip; Communication plug is connected with CPU card, and communication plug comprises CAN bus, RS485 bus, the 2nd FPGA and multiway analog switch; Intelligence is switched plug-in unit and is comprised passive node and the switching value monitoring circuit left of multichannel; Power insert, CPU card, intelligence are switched plug-in unit and all are connected with communication plug by 96 core HARTINT terminals, and the liquid crystal plug-in unit is connected with communication plug by cable; In the mass storage that the test procedure of measured switch amount plug-in unit and application program leave CPU card in, cpu chip is transferred to program by the asynchronous bus in the CPU card the one FPGA of CPU card, serial programming interface by the MCU in the IO pin connection slowdown monitoring switch amount plug-in unit of a FPGA is downloaded to test procedure and application program in the measured switch amount plug-in unit;
CPU card and power insert carry out data interaction by the CAN bus of communication plug, and power insert is regulated the Voltage-output of power insert according to the control command of CPU card; Power insert is linked intelligence with adjustable voltage output and is switched in the plug-in unit by communication plug.
The output connecting communication plug-in unit of power insert exports intelligence to again and switches plug-in unit, and intelligence is switched plug-in unit and connected measured switch amount plug-in unit again, and measured switch amount plug-in unit connects the input end (output signal of receiving key amount plug-in unit) of CPU card.
CPU card and liquid crystal plug-in unit carry out data interaction by the RS485 bus of communication plug, show the model of measured switch amount plug-in unit, the version of test procedure, the version of application program, the version of BOOT program, and test result.
CPU card is by the RS485 bus, the panel input/output signal of measured switch amount plug-in unit is defined the FPGA that sends in the communication plug, FPGA exports control signal, controls adhesive, disconnection that intelligence is switched plug-in unit internal relay matrix, simulates the input/output signal of plug-in unit to be tested.After being completed, CPU sends ending message to the interior FPGA of communication plug, the break-make of FPGA communication control plug-in unit internal simulation switch, cut off the electrical connection of measured switch amount plug-in unit and tester, thereby realize that tester does not cut off the power supply, be the function of replaceable measured switch amount plug-in unit, thereby improve testing efficiency.
CPU sends to communication plug with the input/output signal definition of various measured switch amount plug-in units.FPGA in the communication plug simulates the input/output signal of plug-in unit to be tested by adhesive, disconnection to intelligence switching plug-in unit internal relay matrix.
CPU sends a command to power insert according to the electric pressure of plug-in unit to be measured, and power insert is exported corresponding supply voltage for test loop.The output voltage grade includes but not limited to 55% and 70% of 250V, 220V, 125V, 110V, 48V, 30V, 24V.
After being completed, tester can cut off the electrical communication of measured switch amount plug-in unit and tester automatically, realizes not closing in the situation of tester power supply, can change easily measured switch amount plug-in unit.
According to the online serial programming agreement of MCU in the measured switch amount plug-in unit, the IO mouth of FPGA simulation serial communication mode in the CPU card is implemented in the test process test procedure and application program download to measured switch amount plug-in unit.Action threshold and the operating power of the intelligent regulated power supply switch amount input circuit by power insert carry out testing authentication, and whether normal to verify that plug-in unit to be measured is opened the entry loop electrical connectivity, whether operational factor is reasonable.
The beneficial effects of the utility model are: the intelligent tester of described switching value plug-in unit, can test various switching value plug-in units, and need not to change tester, have automatic test, self registering function.CPU card is by the RS485 bus, the panel input/output signal of measured switch amount plug-in unit is defined the FPGA that sends in the communication plug, FPGA exports control signal, controls adhesive, disconnection that intelligence is switched plug-in unit internal relay matrix, simulates the input/output signal of plug-in unit to be tested.The utility model realizes that tester does not cut off the power supply, i.e. the function of replaceable measured switch amount plug-in unit, thus improve testing efficiency.
Description of drawings
Fig. 1 is switching value plug-in unit tester front schematic view
Fig. 2 is the System Construction of switching value plug-in unit tester
Fig. 3 is that intelligence is switched plug-in unit realization principle
Fig. 4 is switching value plug-in unit tester control flow process
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
The intelligent tester of switching value plug-in unit comprises power insert, CPU card, intelligence switching plug-in unit, measured switch amount plug-in unit, all is connected with communication plug by 96 core HARTINT terminals, and the liquid crystal plug-in unit is connected with communication plug by the ox horn seat of 10 cores.Power insert (module) is by DC110V/220V, and the input of AC110V/220V voltage has 2 road output voltages, wherein one the tunnel is output as 5V voltage, and for other plug-in unit provides working power, another road output adjustable voltage is for measured switch amount plug-in unit provides test voltage; CPU card comprises cpu chip and reaches the DDR chip that is connected with cpu chip, switch controller, mass storage, primary scene programmable gate array chip FPGA and the CAN bus controller hardware device of 10M/100M; Communication plug is connected with CPU card, comprises the CAN bus, RS485 bus, secondary scene programmable gate array chip FPGA and multiway analog switch; Intelligence is switched plug-in unit and is comprised passive node and the switching value monitoring circuit left of multichannel; Power insert, CPU card, intelligence are switched plug-in unit and all are connected with communication plug by 96 core HARTINT terminals, and the liquid crystal plug-in unit is connected with communication plug by the cable of 10 cores.The output connecting communication plug-in unit of power insert exports intelligence to again and switches plug-in unit, and intelligence is switched plug-in unit and connected measured switch amount plug-in unit again, and measured switch amount plug-in unit connects the input end of CPU card.
CPU card and power insert carry out data interaction by the CAN bus of communication plug, the control command that power insert issues according to CPU card, the adjustable voltage output of adjusting itself.Adjustable voltage is by high-precision built in self testing loop and feedback algorithm so that in the output voltage range of 10V-300V the output voltage accuracy reach ± 1%.And according to testing requirement, conventional output voltage grade includes but are not limited to 55% and 70% of 250V, 220V, 125V, 110V, 48V, 30V, 24V.Power insert outputs to intelligence with adjustable voltage and switches in the plug-in unit by communication plug.
CPU in this switching value plug-in unit intelligent tester after being responsible for resolving the order of configuration text, is handed down to each plug-in unit as the control core of whole tester, and receives, judges the response message of each plug-in unit.The operation information of tester is presented on the liquid crystal in real time.The test procedure of unified management plug-in unit to be measured and application program, its version number of mechanical check by strict check logic, guarantees the high unity of test procedure, application program, plug-in version.Adjust strategy by voltage, real-time dynamic adjustments intelligent power output voltage, to satisfy the demand of different electric pressure plug-in units, and according to the model of plug-in unit to be measured, switch plug-in unit via communication plug to intelligence and send control command, intelligence is switched plug-in unit by adhesive, the disconnection of internal relay, simulates plug-in unit input/output signal to be measured, thereby realizes the normalized of different plug-in unit input/output signals.
CPU card is dynamically controlled the on/off of plug-in unit to be measured by reading the test result of plug-in unit to be measured, to realize not power down of tester, can finish the function of test, has improved testing efficiency.
The method of using the utility model switching value plug-in unit intelligent tester to test:
In the following description: the FPGA in the CPU card is defined as FPGA1; The 2nd FPGA in the communication plug is defined as FPGA2.
As shown in Figure 1, measured switch amount plug-in unit is inserted in the tester, and will test cable and connect, in liquid crystal, select the model of plug-in unit to be measured, press " ENT " key and begin to test.
After CPU card receives " ENT " order, as shown in Figure 2, by the RS485 bus, send the startup test command to FPGA2.FPGA2 exports control signal, and control tester power supply is to the power supply of measured switch amount plug-in unit, and the adhesive of control simulation switch, is communicated with the signal circuit of plug-in unit to be measured and communication plug.
CPU after the test procedure parsing with plug-in unit to be measured, sends to FPGA1 by file management system, and FPGA1 is downloaded to test procedure in the measured switch amount plug-in unit by IO mouth simulation serial programming interface.Then CPU resolves the configuration text of plug-in unit to be measured, and the configuration information with measured switch amount plug-in unit terminal input/output signal in the text by the RS485 bus, sends to FPGA2.FPGA2 outputs control signals to intelligence and switches plug-in unit.
After intelligence was switched the control signal of plug-in unit reception FPGA2 output, the relay of adhesive inside made corresponding test loop conducting, as shown in Figure 3.Simple in order to illustrate, only draw 3 the tunnel herein.Switch the principle of work of plug-in unit for describing intelligence, be exemplified below:
When the terminal between the first via and the second tunnel is one pair of passive bus, 1 adhesive of FPGA2 pilot relay, thus make " regulated power supply+" of the first via, the passive bus of measured switch amount plug-in unit, the second tunnel optocoupler loop consists of test loop.FPGA2 judges the state of plug-in unit passive bus to be measured by retaking of a year or grade optocoupler output level, to reach the purpose that detects the passive bus switching.When the first via, the second road terminal be switching value open into, the Third Road terminal be switching value open into common port the time, FPGA2 pilot relay 1,3,6 adhesives, thereby make the first via, the second tunnel " regulated power supply+", measured switch amount plug-in unit inside open entry loop, " regulated power supply-" of Third Road consists of test loop, by regulating the voltage of regulated power supply output different brackets, can satisfy opening into plug-in unit of all electric pressures and test.
FPGA2 resets behind the measured switch amount plug-in unit, and test procedure brings into operation.CPU sends test command by the CAN bus in the communication plug to measured switch amount plug-in unit, and according to the configuration information in the configuration text, regulates in real time adjustable voltage output, for measured switch amount plug-in unit provides test signal.
After being completed, if measured switch amount plug-in unit is unusual, plug-in unit to be measured can return to CPU card with test result.CPU can be presented at detecting information on the liquid crystal, and sends the finish command to FPGA2, and FPGA2 exports control signal, disconnects power supply and the signal link of plug-in unit to be measured.This moment the tester to need not to cut off the tester power supply be replaceable measured switch amount plug-in unit.
If test successfully, CPU is by file management system, resolve the application program of this plug-in unit after, send to FPGA1, FPGA1 is downloaded to application program in the measured switch amount plug-in unit by IO mouth simulation serial programming interface.After the application program operation, the version number of retaking of a year or grade application program, program time of filing, CRC check code.CPU compares three kinds of information with the configuration information in the configuration text, if correct, show and test successfully, and send the finish command to FPGA2, and FPGA2 exports control signal, disconnects power supply and the signal link of plug-in unit to be measured.This moment the tester to need not to cut off the tester power supply be replaceable measured switch amount plug-in unit.
Claims (7)
1. the intelligent tester of switching value plug-in unit is characterized in that comprising power insert, and CPU card, intelligence are switched plug-in unit, measured switch amount plug-in unit, communication plug and liquid crystal plug-in unit; Power insert is provided with two road output voltages, wherein one the tunnel is output as 5V voltage, and another road output adjustable voltage is for measured switch amount plug-in unit provides test voltage; CPU card comprises cpu chip and the DDR chip, 10M/100M on-off controller, mass storage, a FPGA and the CAN bus controller that are connected with cpu chip; Communication plug is connected with CPU card, and communication plug comprises CAN bus, RS485 bus, the 2nd FPGA and multiway analog switch; Intelligence is switched plug-in unit and is comprised passive node and the switching value monitoring circuit left of multichannel; Power insert, CPU card, intelligence are switched plug-in unit and all are connected with communication plug by 96 core HARTINT terminals, and the liquid crystal plug-in unit is connected with communication plug by cable;
In the mass storage that the test procedure of measured switch amount plug-in unit and application program leave CPU card in, cpu chip is transferred to program by the asynchronous bus in the CPU card the one FPGA of CPU card, serial programming interface by the MCU in the IO pin connection slowdown monitoring switch amount plug-in unit of a FPGA is downloaded to test procedure and application program in the measured switch amount plug-in unit; CPU card and power insert carry out data interaction by the CAN bus of communication plug, and power insert is regulated the Voltage-output of power insert according to the control command of CPU card; Power insert is linked intelligence with the adjustable voltage of output and is switched in the plug-in unit by communication plug.
2. the intelligent tester of switching value plug-in unit according to claim 1, the output connecting communication plug-in unit that it is characterized in that power insert exports intelligence switching plug-in unit again to, intelligence is switched plug-in unit and is connected measured switch amount plug-in unit again, and measured switch amount plug-in unit connects the input end of CPU card.
3. the intelligent tester of switching value plug-in unit according to claim 1, it is characterized in that CPU card is connected and data interaction with the RS485 bus of liquid crystal plug-in unit by communication plug, shows the model of measured switch amount plug-in unit, the version of test procedure, the version of application program, version and the test result of BOOT program.
4. the intelligent tester of switching value plug-in unit according to claim 1, it is characterized in that CPU card passes through the RS485 bus, the definition of the panel input/output signal of measured switch amount plug-in unit connected and send to FPGA in the communication plug, FPGA exports control signal, control intelligence and switch adhesive, the disconnection of plug-in unit internal relay matrix, simulate the input/output signal of plug-in unit to be tested.
5. the intelligent tester of switching value plug-in unit according to claim 1 is characterized in that CPU card according to the electric pressure of plug-in unit to be measured, sends a command to power insert, and power insert is exported corresponding supply voltage for test loop; The output voltage grade comprises 55% and 70% of 250V, 220V, 125V, 110V, 48V, 30V, 24V.
6. the intelligent tester of switching value plug-in unit according to claim 1 and 2, it is characterized in that power insert, CPU card, intelligence switching plug-in unit all are connected with communication plug by 96 core HARTINT terminals, the liquid crystal plug-in unit is connected with communication plug by the cable of 10 cores.
7. the intelligent tester of switching value plug-in unit according to claim 1 and 2, it is characterized in that among the test procedure of measured switch amount plug-in unit and the NOR FLASH that application program leaves CPU card in, CPU card is transferred to program by the asynchronous bus in the plate FPGA of this plate, serial programming interface by MCU in the IO pin simulation measured switch amount plug-in unit of FPGA is downloaded to test procedure and application program in the measured switch amount plug-in unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511703 CN202903915U (en) | 2012-09-29 | 2012-09-29 | Intelligent testing instrument of switching value plug-ins |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220511703 CN202903915U (en) | 2012-09-29 | 2012-09-29 | Intelligent testing instrument of switching value plug-ins |
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| CN202903915U true CN202903915U (en) | 2013-04-24 |
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| CN 201220511703 Expired - Lifetime CN202903915U (en) | 2012-09-29 | 2012-09-29 | Intelligent testing instrument of switching value plug-ins |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792101A (en) * | 2013-11-21 | 2014-05-14 | 安徽科航自动化仪器有限公司 | Large-scale rotating machinery detection protector |
| CN104330744A (en) * | 2014-09-19 | 2015-02-04 | 国家电网公司 | Power supply detector for detecting power supply plug-in of microcomputer protective device |
| CN104598339A (en) * | 2013-10-30 | 2015-05-06 | 北京航天斯达新技术装备公司 | Measurement system power supply and distribution equivalence device based on CAN (Controller Area Network) bus |
| CN106054059A (en) * | 2016-05-30 | 2016-10-26 | 南京国电南自电网自动化有限公司 | Electric power automation device intelligent plug-in automatic test platform |
| CN106685090A (en) * | 2014-09-04 | 2017-05-17 | 国电南瑞科技股份有限公司 | Plug-in online detection method for micro-grid regional protection and control integrated device |
| CN106872851A (en) * | 2017-04-13 | 2017-06-20 | 国家电网公司 | The health status detection means and detection method of new relay protecting power plug-in unit |
| CN107179471A (en) * | 2017-05-26 | 2017-09-19 | 云南电网有限责任公司电力科学研究院 | Bus plug-in unit method of testing between a kind of plate |
| CN108333550A (en) * | 2018-03-12 | 2018-07-27 | 北京四方继保自动化股份有限公司 | A kind of input and output inspection circuit of isolated form wide scope |
-
2012
- 2012-09-29 CN CN 201220511703 patent/CN202903915U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104598339A (en) * | 2013-10-30 | 2015-05-06 | 北京航天斯达新技术装备公司 | Measurement system power supply and distribution equivalence device based on CAN (Controller Area Network) bus |
| CN104598339B (en) * | 2013-10-30 | 2017-09-29 | 北京航天斯达新技术装备公司 | A kind of measuring system based on CAN supplies distribution simulator |
| CN103792101A (en) * | 2013-11-21 | 2014-05-14 | 安徽科航自动化仪器有限公司 | Large-scale rotating machinery detection protector |
| CN106685090A (en) * | 2014-09-04 | 2017-05-17 | 国电南瑞科技股份有限公司 | Plug-in online detection method for micro-grid regional protection and control integrated device |
| CN106685090B (en) * | 2014-09-04 | 2019-06-25 | 国电南瑞科技股份有限公司 | A kind of plug-in unit online test method of micro-capacitance sensor locality protection control integrated apparatus |
| CN104330744A (en) * | 2014-09-19 | 2015-02-04 | 国家电网公司 | Power supply detector for detecting power supply plug-in of microcomputer protective device |
| CN106054059A (en) * | 2016-05-30 | 2016-10-26 | 南京国电南自电网自动化有限公司 | Electric power automation device intelligent plug-in automatic test platform |
| CN106054059B (en) * | 2016-05-30 | 2019-03-19 | 南京国电南自电网自动化有限公司 | A kind of power automatic device chip card automatically testing platform |
| CN106872851A (en) * | 2017-04-13 | 2017-06-20 | 国家电网公司 | The health status detection means and detection method of new relay protecting power plug-in unit |
| CN107179471A (en) * | 2017-05-26 | 2017-09-19 | 云南电网有限责任公司电力科学研究院 | Bus plug-in unit method of testing between a kind of plate |
| CN108333550A (en) * | 2018-03-12 | 2018-07-27 | 北京四方继保自动化股份有限公司 | A kind of input and output inspection circuit of isolated form wide scope |
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Granted publication date: 20130424 |