CN109557841B - Self-detection system based on wireless equipment - Google Patents
Self-detection system based on wireless equipment Download PDFInfo
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- CN109557841B CN109557841B CN201811051349.2A CN201811051349A CN109557841B CN 109557841 B CN109557841 B CN 109557841B CN 201811051349 A CN201811051349 A CN 201811051349A CN 109557841 B CN109557841 B CN 109557841B
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- control panel
- circuit breaker
- bus terminal
- panel cabinet
- command
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Abstract
The invention discloses a self-detection system based on wireless equipment, which comprises a control terminal, a wireless network and a wireless network, wherein the control terminal is in signal connection with an upper management device; the bus terminal is connected with the control panel cabinet and used for simulating the working states of the plurality of circuit breaker controllers, communicating with the control panel cabinet and refreshing the circuit breaker states acquired in the control panel cabinet; the control panel cabinet only communicates with one circuit breaker controller simulated by the bus terminal every time, the ID of a destination circuit breaker is in a message sent by the control panel cabinet every time, the bus terminal is set to be in a multi-ID mode, and a plurality of destination IDs are received. The bus terminal of the system can simulate the working state of the circuit breaker and can communicate with the control cabinet, so that all communication functions of the circuit breaker controller and the control cabinet can be realized, the capacity of simulating the existing network circuit breaker by 100 percent can be realized, a large amount of laboratory space and equipment purchasing cost can be saved, and the economic value is obvious.
Description
Technical Field
The invention relates to the technical field of electric power experiment detection, in particular to a self-detection system based on wireless equipment.
Background
In a power laboratory environment, an RTDS (simulation into a circuit breaker) plus a circuit breaker controller is currently used to simulate the existing network operation equipment. RTDS adopts foreign simulation equipment, and the circuit breaker controller also adopts Siemens special equipment. The main problems that exist at present are: the volume of each circuit breaker controller is all bigger, and 3 ~ 4 circuit breaker controllers are placed to intelligence in a standard 2.2 meters frame generally. The circuit breaker adopts special large-scale equipment, and purchasing cost is higher. Therefore, as shown in fig. 1, a scenario of deploying 30 circuit breaker controllers in an existing network environment is difficult to implement in a laboratory environment due to space and cost constraints.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned deficiencies in the prior art and providing a wireless device based self-test system to save space and cost.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the self-detection system based on the wireless equipment comprises an upper management device, a control terminal, a bus terminal and a control panel cabinet; wherein the content of the first and second substances,
the control terminal is in signal connection with the upper management device and is used for receiving a control command sent by the upper management device and sending the command to the bus terminal;
the bus terminal is connected with the control panel cabinet and used for simulating the working states of the plurality of circuit breaker controllers, communicating with the control panel cabinet and refreshing the circuit breaker states acquired in the control panel cabinet; the control panel cabinet is communicated with only one circuit breaker controller simulated by the bus terminal every time, the ID of a destination circuit breaker is in a message sent by the control panel cabinet every time, the bus terminal is set to be in a multi-ID mode, when messages with different ID of the destination sent by the control panel cabinet are received, the bus terminal can simulate the circuit breaker controller to generate a response message corresponding to the ID, and the content of the response is set in advance by the upper management device.
The communication flow of the control panel cabinet and the bus terminal is as follows:
1) when the control panel cabinet sends out an inquiry command, all the circuit breaker controllers simulated by the bus terminal receive the command, and the circuit breaker controllers simulated by the corresponding bus terminal receive the command sent to the corresponding bus terminal and then generate an online command to answer the online command to the control panel cabinet;
2) when the control panel cabinet sends out a command for inquiring the state, the circuit breaker controller simulated by the corresponding bus terminal is preset
The state of the placed circuit breaker is responded to the control panel cabinet.
The bus terminal is connected with the control panel cabinet through a profibu485 bus.
The profibus 485 bus adopts a data structure of the SD3 type of profibus.
The bus terminal is used for simulating 30 circuit breaker controllers.
The bus terminal adopts an MCU of ARM Cortex-M7 and utilizes hardware cache.
Compared with the prior art, the invention has the beneficial effects that:
the bus terminal of the system can simulate the working state of 30 circuit breakers and can communicate with the control panel cabinet, so that all communication functions of the circuit breaker controller and the control panel cabinet can be realized, the capability of simulating the existing network circuit breaker by 100 percent can be realized, a large amount of laboratory space and equipment purchasing cost can be saved, and the economic value is obvious.
Drawings
FIG. 1 is a schematic diagram of a conventional wireless device-based self-test system;
fig. 2 is a schematic diagram illustrating a wireless device-based self-test system according to an embodiment of the present invention;
FIG. 3 is a flow chart of the communication between the control panel and the bus terminal;
fig. 4 is a circuit schematic of a bus termination.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and detailed description.
Example (b):
referring to fig. 2, the self-testing system based on wireless devices provided in this embodiment includes an upper management device, a control terminal, a bus terminal, and a control panel.
The control terminal is in signal connection with the upper management device and is used for receiving a control command sent by the upper management device and sending the command to the bus terminal; the bus terminal is connected with the control panel cabinet and is used for simulating the working states of 30 breaker controllers (the number of which can be set according to the number), communicating with the control panel cabinet and refreshing the breaker states acquired from the control panel cabinet; the control panel cabinet only communicates with one circuit breaker controller simulated by the bus terminal every time, the ID of a destination circuit breaker is in a message sent by the control panel cabinet every time, when messages with different ID are received, the bus terminal can simulate the circuit breaker controller to generate a response message corresponding to the ID, and the content of the response is set in advance by the upper management device.
Therefore, the bus terminal of the system can simulate the working states of 30 circuit breakers and can communicate with the control panel cabinet, so that all circuit breaker controllers and the control panel cabinet communication simulation function can be realized, the capacity of simulating the existing network circuit breakers by 100 percent is realized, a large amount of laboratory space and equipment purchase cost are saved, and the economic value is obvious.
Specifically, the communication flow between the control panel cabinet and the bus terminal is as follows:
1) when the control panel cabinet sends out an inquiry command, all the circuit breaker controllers simulated by the bus terminal receive the command, and the circuit breaker controllers simulated by the corresponding bus terminal receive an instruction sent to the circuit breaker controllers (identified by a target ID), and then generate an online command and answer the online command to the control panel cabinet;
2) when the control panel cabinet sends out a command for inquiring the state, the circuit breaker controller simulated by the corresponding bus terminal is preset
The state of the placed circuit breaker is responded to the control panel cabinet.
As shown in fig. 2, for example, we can simulate the command that the circuit breaker a needs to respond to through the bus terminal. When the control panel cabinet sends an instruction for inquiring whether the A is on line or not, the bus terminal feeds back the A to be on line, so that the control panel cabinet considers that the A is on line and can receive the operation instruction sent by the A. When the control panel cabinet inquires whether the B is on line or not, the bus terminal also simulates the B equipment to feed back on-line information, and the control panel cabinet also sends an operation instruction to the B after receiving the information.
Specifically, the bus terminal is connected with the control panel cabinet through a profibu485 bus; the profibus 485 bus employs a profibus SD 3-like data structure. As shown in table 1, the SD3 data domain has variable length, and the parameter domain has more configuration and powerful functions.
TABLE 1
The bus terminal adopts an ARM Cortex-M7 ultra-high performance MCU, and utilizes a hardware cache L1 to realize the high theoretical performance of a Cortex-M7 inner core, namely whether the codes are executed from an embedded flash memory or an external memory: the performance of the 400MHz processor can reach 2010 CoreMark/856 DMIPS. The schematic diagram is shown in fig. 3, the power circuit is arranged at the upper left corner, and the main circuit is arranged at the right side.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (5)
1. The self-detection system based on the wireless equipment is characterized by comprising an upper management device, a control terminal, a bus terminal and a control panel cabinet; wherein the content of the first and second substances,
the control terminal is in signal connection with the upper management device and is used for receiving a control command sent by the upper management device and sending the command to the bus terminal;
the bus terminal is connected with the control panel cabinet and used for simulating the working states of the plurality of circuit breaker controllers, communicating with the control panel cabinet and refreshing the circuit breaker states acquired in the control panel cabinet; the control panel cabinet is communicated with only one circuit breaker controller simulated by the bus terminal every time, the ID of a destination circuit breaker is in a message sent by the control panel cabinet every time, the bus terminal is set to be in a multi-ID mode, when messages with different destination IDs sent by the control panel cabinet are received, the bus terminal can simulate the circuit breaker controller to generate a response message corresponding to the ID, and the content of the response is set in advance by an upper management device;
the communication flow of the control panel cabinet and the bus terminal is as follows:
1) when the control panel cabinet sends out an inquiry command, all the circuit breaker controllers simulated by the bus terminal receive the command, and the circuit breaker controllers simulated by the corresponding bus terminal receive the command sent to the corresponding bus terminal and then generate an online command to answer the online command to the control panel cabinet;
2) after the control panel cabinet sends out a command for inquiring the state, the circuit breaker controller simulated by the corresponding bus terminal can respond the preset circuit breaker state to the control panel cabinet.
2. The wireless device based self-test system as claimed in claim 1, wherein said bus terminal is connected to the control panel through a profibu485 bus.
3. The wireless device-based self-test system of claim 2, wherein the profibus 485 employs a profibus SD 3-like data structure.
4. The wireless device based self-test system as recited in claim 1, wherein the bus terminal is configured to emulate 30 circuit breaker controllers.
5. The wireless device based self-test system of claim 1 or 4, wherein the bus termination uses an MCU of ARM Cortex-M7, utilizing hardware buffering.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811051349.2A CN109557841B (en) | 2018-09-10 | 2018-09-10 | Self-detection system based on wireless equipment |
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| CN201811051349.2A CN109557841B (en) | 2018-09-10 | 2018-09-10 | Self-detection system based on wireless equipment |
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| CN109557841A CN109557841A (en) | 2019-04-02 |
| CN109557841B true CN109557841B (en) | 2020-09-25 |
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Citations (2)
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| CN101515014A (en) * | 2009-03-17 | 2009-08-26 | 中国西电电气股份有限公司 | Analog device of control cabinet matched with detection switch apparatus |
| CN201518176U (en) * | 2009-09-03 | 2010-06-30 | 浙江天正电气股份有限公司 | Field bus communication circuit breaker simulation signal device |
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| JPH08227639A (en) * | 1995-02-22 | 1996-09-03 | Meidensha Corp | Simulation method for multiple reignition surge |
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| CN202305703U (en) * | 2011-10-27 | 2012-07-04 | 广东电网公司深圳供电局 | Complicated fault reoccurrence simulated circuit breaker device for power grid |
| CN204205218U (en) * | 2014-10-21 | 2015-03-11 | 国家电网公司 | The general-purpose interface of intelligent terminal in a kind of spaced simulation screen cabinet |
| US9753088B2 (en) * | 2014-11-03 | 2017-09-05 | Eaton Corporation | Portable diagnostic apparatus for testing circuit breakers |
| CN204257089U (en) * | 2014-12-11 | 2015-04-08 | 广州铁路职业技术学院 | Switch cubicle analogue experiment installation |
| CN104569686B (en) * | 2015-01-19 | 2017-12-15 | 国家电网公司 | A kind of intelligent substation and its intelligent secondary device test system |
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| CN207115824U (en) * | 2017-05-25 | 2018-03-16 | 国网福建省电力有限公司 | A kind of power distribution network physical simulating device |
| CN107271895A (en) * | 2017-08-01 | 2017-10-20 | 江苏省电力试验研究院有限公司 | A kind of the time reference device and check system of the verification of primary cut-out test system |
| CN207676135U (en) * | 2018-01-11 | 2018-07-31 | 南方电网科学研究院有限责任公司 | A kind of hardware-in-the-loop simulation system for high voltage DC breaker |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101515014A (en) * | 2009-03-17 | 2009-08-26 | 中国西电电气股份有限公司 | Analog device of control cabinet matched with detection switch apparatus |
| CN201518176U (en) * | 2009-09-03 | 2010-06-30 | 浙江天正电气股份有限公司 | Field bus communication circuit breaker simulation signal device |
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