CN110011419B - Wireless acquisition isolation system in ground wire hanging and detaching state and working method thereof - Google Patents
Wireless acquisition isolation system in ground wire hanging and detaching state and working method thereof Download PDFInfo
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- CN110011419B CN110011419B CN201910308651.XA CN201910308651A CN110011419B CN 110011419 B CN110011419 B CN 110011419B CN 201910308651 A CN201910308651 A CN 201910308651A CN 110011419 B CN110011419 B CN 110011419B
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- 238000002955 isolation Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 230000002265 prevention Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 abstract description 20
- 238000013461 design Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000005283 ground state Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
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- H02J13/0075—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
The invention discloses a ground wire hanging and dismantling wireless acquisition isolation system and a working method thereof, wherein a ground wire state acquisition device is used for acquiring the real-time state of a ground wire, the ground wire state is transmitted to an intelligent ground wire hard contact output device in a wired or wireless transmission mode, the intelligent ground wire hard contact output device is used for converting the acquired ground wire state data into hard contact output, and the two states of closing and opening output by a passive contact switch are used for simulating the 0 and 1 of data communication, so that the ground wire hanging and dismantling state and ground wire pile number information are respectively described and transmitted to an error-preventing host. The method not only meets the unidirectional transmission requirement of data communication, but also ensures the physical isolation between devices, and the communication data information is high in safety.
Description
Technical Field
The invention belongs to the field of power management systems, and relates to a wireless acquisition isolation system in a ground wire hanging and detaching state and a working method thereof.
Background
The temporary electric power grounding wire is an electric power production safety tool. Because it has low cost, the principle is simple reliable, uses advantages such as simple operation, is widely used in the maintenance operation of power equipment at present for carry out ground protection to equipment or circuit of maintenance, prevent unexpected incoming telegram to cause personnel to hurt or equipment damage. However, due to portability and temporary property of the temporary grounding wire, the situation of missed hanging or missed dismantling of the temporary grounding wire is easy to occur, thereby causing personal casualties. The key point is to prevent or stop the occurrence of illegal conditions technically and reliably realize the automatic collection of the temporary grounding wire hanging/dismantling state. According to the hanging/dismantling state of the temporary grounding wire and the error prevention logic, the missing hanging or missing dismantling of the temporary grounding wire can be prevented by the microcomputer error prevention locking technology means, so that the occurrence of error operation accidents related to the temporary grounding wire can be avoided.
The current common method for automatically collecting the temporary grounding wire hanging/dismantling state is as follows: the acquisition controller is connected with the error-proof host and communicated with the error-proof host, so that the ground wire state data is transmitted, namely, the acquisition controller and the error-proof host directly perform data interaction. The system and the method have the disadvantage that the system cannot meet the high security requirement in the aspect of network information security. Therefore, from the aspect of network information safety, the wireless acquisition isolation system with low cost and high reliability for hanging and detaching the grounding wire and the working method thereof are provided.
Disclosure of Invention
The invention provides a ground wire hanging and detaching wireless acquisition isolation system which comprises an error-proof host machine, an intelligent ground wire hard contact input device, an intelligent ground wire hard contact output device and a ground wire state acquisition device, wherein the ground wire state acquisition device transmits ground wire state data to the intelligent ground wire hard contact output device, the intelligent ground wire hard contact output device converts the acquired ground wire state data into hard contact output, and the intelligent ground wire hard contact input device receives the ground wire state data from the intelligent ground wire hard contact output device and transmits the ground wire state data to the error-proof host machine.
According to the ground wire hanging and detaching wireless acquisition isolation system, the ground wire state data comprise ground wire hanging and detaching state data and ground wire pile number information data.
According to the ground wire hanging and detaching wireless acquisition isolation system, the intelligent ground wire hard joint input device comprises a ground wire hanging and detaching state open loop terminal and a ground wire pile number information open loop terminal, and acquires the ground wire hanging and detaching state and the ground wire pile number information data provided by the intelligent ground wire hard joint output device.
According to the ground wire hanging and detaching wireless acquisition isolation system, the intelligent ground wire hard contact output device comprises a ground wire hanging and detaching state open loop terminal and a ground wire pile number information open loop terminal.
According to the ground wire hanging and detaching wireless acquisition isolation system, a passive contact switch is adopted for the ground wire hanging and detaching state open loop and the ground wire pile number information open loop.
According to the ground wire hanging and detaching wireless acquisition isolation system, the passive contact switch comprises a driving coil, an electromagnetic module and a passive switching contact.
According to the ground wire hanging and detaching wireless acquisition isolation system, the driving coil and the passive switching contact are physically isolated.
According to the ground wire hanging and detaching wireless acquisition isolation system, the intelligent ground wire hard contact output device uses any one of 1-bit to 6-bit passive contacts to describe the hanging and detaching state of the ground wire.
According to the ground wire hanging and detaching wireless acquisition isolation system, the intelligent ground wire hard contact output device uses a 3-bit passive contact to describe the hanging and detaching state of the ground wire.
According to the ground wire hanging and detaching wireless acquisition isolation system, the intelligent ground wire hard contact output device uses at least 6-bit passive contacts to describe ground wire pile number information.
According to the ground wire hanging and detaching wireless acquisition isolation system, the intelligent ground wire hard contact output device uses a 12-bit passive contact to describe ground wire pile number information.
The invention also provides a working method of the ground wire hanging and detaching wireless acquisition isolation system, which comprises the steps of acquiring the real-time state of the ground wire through the ground wire state acquisition device, transmitting the ground wire state to the intelligent ground wire hard contact output device through a wired or wireless transmission mode, converting the acquired ground wire state data into hard contact output by the intelligent ground wire hard contact output device, receiving the ground wire state data from the intelligent ground wire hard contact output device by the intelligent ground wire hard contact input device, transmitting the ground wire state data to the error prevention host, logically judging the ground wire state by the error prevention host according to error prevention logic set by the system, and sending an alarm signal to the ground wire which does not meet logic requirements.
According to the working method of the ground wire hanging and detaching wireless acquisition isolation system, the ground wire state data comprise ground wire hanging and detaching state data and ground wire pile number information data.
According to the working method of the ground wire hanging and detaching wireless acquisition isolation system, the intelligent ground wire hard contact input device comprises a ground wire hanging and detaching state open loop terminal and a ground wire pile number information open loop terminal, and the ground wire hanging and detaching state and the ground wire pile number information data provided by the intelligent ground wire hard contact output device are acquired.
According to the working method of the ground wire hanging and detaching wireless acquisition isolation system, the intelligent ground wire hard contact output device comprises a ground wire hanging and detaching state open loop terminal and a ground wire pile number information open loop terminal.
According to the working method of the ground wire hanging and detaching wireless acquisition isolation system, a passive contact switch is adopted for the ground wire hanging and detaching state open loop and the ground wire pile number information open loop.
According to the working method of the ground wire hanging and detaching wireless acquisition isolation system, the passive contact switch comprises a driving coil, an electromagnetic module and a passive switching contact.
According to the working method of the ground wire hanging and detaching wireless acquisition isolation system, the driving coil and the passive switching contact are physically isolated.
According to the working method of the ground wire hanging and disassembling wireless acquisition isolation system, the intelligent ground wire hard contact output device uses any one of 1-bit to 6-bit passive contacts to describe the hanging and disassembling state of the ground wire.
According to the working method of the ground wire hanging and detaching wireless acquisition isolation system, the intelligent ground wire hard contact output device uses a 3-bit passive contact to describe the hanging and detaching state of the ground wire.
According to the working method of the ground wire hanging and detaching wireless acquisition isolation system, the intelligent ground wire hard contact output device uses at least 6-bit passive contacts to describe ground wire pile number information.
According to the working method of the ground wire hanging and detaching wireless acquisition isolation system, the intelligent ground wire hard contact output device uses a 12-bit passive contact to describe ground wire pile number information.
The invention has the beneficial effects that:
the technical scheme of the invention has obvious advantages when applied to the intelligent management of the hanging/dismantling state detection system of the temporary grounding wire. The system has the advantages of simplified structure, reduced parts, reliable circuit and easy realization, converts the collected ground wire state data into hard contact output, simulates the 0 and 1 of data communication by the two states of closing and opening of the passive contact switch output, describes the ground wire hanging and detaching state and the ground wire pile number information respectively, and transmits the ground wire hanging and detaching state and the ground wire pile number information to an error-preventing host. The method not only meets the unidirectional transmission requirement of data communication, but also ensures the physical isolation between devices, and the communication data information is high in safety. The technical scheme of the invention can also be applied to other state detection occasions needing physical isolation.
Drawings
FIG. 1 is a diagram of a wireless acquisition isolation system in a ground wire hanging and detaching state;
FIG. 2 is a working flow chart of the wireless acquisition isolation system in a ground wire hanging and detaching state;
fig. 3 is a view showing the internal structure of the passive contact switch.
Detailed Description
The invention will be further illustrated with reference to specific examples. It should be understood that the examples are only for illustrating the present invention and are not intended to limit the scope of the present invention. Further, it is understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the disclosure of the present invention, and such equivalents are intended to fall within the scope of the present invention as defined by the appended claims.
The ground wire state acquisition system acquires the real-time state of the ground wire in a wireless transmission mode through the ground wire state acquisition device, and transmits ground wire state data to the intelligent ground wire hard contact output device in a wired or wireless transmission mode. The intelligent ground wire hard contact output device is a rack type device, and is provided with a front panel and a rear panel, wherein the front panel is provided with an LED display screen for indicating a system state, a power state, a communication state and a passive contact opening state, and the rear panel is provided with a DC24V power input terminal, a ground wire hanging and dismantling state opening loop terminal, a ground wire pile number information opening loop terminal, a system state opening loop terminal, an RS485 communication terminal, an RS232 communication terminal and an RS422 communication terminal. The intelligent ground wire hard contact output device is also provided with an MCU data processing unit. The intelligent ground wire hard contact output device inputs 24V direct current to work by a hardware circuit of the device.
The ground wire hanging and detaching state opening loop and the ground wire pile number information opening loop adopt a passive contact switch design. According to fig. 3, the passive contact switch includes a driving coil, an electromagnetic module and a passive switching contact, after a hardware circuit sends a driving pulse voltage to the driving coil, the driving coil generates electromotive force, an electromagnetic field converted by the electromotive force acts on the electromagnetic module, the electromagnetic module drives a movable contact in the passive switching contact to act, and two states of closing and opening are output, so that description of data 0 and 1 is realized. The driving coil inside the passive contact switch is physically isolated from the passive switching contact, the driving coil and the passive switching contact cannot directly transmit data signals, and only after the driving coil is excited by voltage, the generated electromotive force is converted into an electromagnetic field and acts on the electromagnetic module to drive the passive switching contact inside the switch to act, so that data unidirectional transmission is realized, and high safety of system data information is ensured.
The system state open-in loop adopts an optocoupler isolation circuit design, and collects the working state of the intelligent ground wire hard contact input device. The intelligent ground wire hard contact output device acquires the ground wire state data provided by the ground wire state acquisition device through the RS485 communication terminal, the RS232 communication terminal and the RS422 communication terminal. And the MCU data processing unit of the device system processes the ground wire state data, and the MCU data processing unit sends a driving instruction according to the ground wire state data to control the driving circuit module to enable the passive contact switch to act, so that the output state of the passive contact switch is consistent with the ground wire state data. For example, when the state data of the ground wire 1 is 001, the output states after the passive contact switch is operated are respectively the closed state, the closed state and the open state.
The intelligent ground wire hard contact input device is a rack-mounted device and is provided with a front panel and a rear panel, wherein the front panel is provided with an LED display screen for indicating a system state, a power state and a communication state, and the rear panel is provided with an AC220V power input terminal, a DC24V output terminal, a ground wire hanging and dismantling state open loop terminal, a ground wire pile number information open loop terminal, a system working state output loop terminal, an Ethernet communication interface, an RS485 communication terminal, an RS232 communication terminal, an RS422 communication terminal and a wireless communication antenna interface. The intelligent ground wire hard contact input device inputs an AC220V power supply to work by a hardware circuit of the device, and outputs DC24V to supply to the intelligent ground wire hard contact output device through a terminal. The ground wire hanging and detaching state opening loop and the ground wire pile number information opening loop adopt an optocoupler isolation circuit design, and the ground wire hanging and detaching state and the ground wire pile number information data provided by the intelligent ground wire hard contact output device are collected. The system working state output loop adopts a relay design, and describes four working states of the intelligent ground wire hard contact output device system through two paths of relay output loops, wherein the four working states are respectively as follows: normal operation, abnormal operation, system reset, and system data reset. The intelligent ground wire hard contact input device collects the ground wire hanging and detaching state and the ground wire pile number information data and transmits the information data to the error-proof host machine through Ethernet communication.
The error-proof host machine carries out logic judgment on the ground wire hanging and detaching state and the ground wire pile number information according to error-proof logic set by the system, displays the ground wire hanging and detaching state and the ground wire pile number information in real time, and sends out an alarm signal to the ground wire which does not meet logic requirements to remind operators of eliminating the defects. Only after the ground wire hanging and detaching state and the ground wire pile number information completely meet the error-proof logic requirement set by the error-proof host system, the ground wire hanging and detaching operation task is calculated and completed.
The intelligent ground wire hard contact output device uses any one of 1-bit to 6-bit passive contacts to describe the hanging and detaching state of the ground wire, and optionally uses 3-bit passive contacts to describe the hanging and detaching state of the ground wire, wherein the first-bit passive contact state represents enabling to open a ground wire pile number, and the last two-bit passive contact state represents the ground wire hanging and detaching state, and the specific description is as follows:
000 represents that the ground wire is in a disassembled state;
001 represents that the ground wire is in a hanging state, and the pile number of the ground wire is unchanged;
010 indicates that the ground wire is in a hanging state, and the pile number of the ground wire is unchanged;
011 denotes ground state anomaly;
100 denotes that the ground wire is in a disassembled state;
101, the ground wire is in a hanging state, and the pile number of the ground wire is changed;
110 indicates that the ground wire is in a hanging state, and the pile number of the ground wire is changed;
reference numeral 111 denotes an abnormality of the ground state.
The intelligent ground wire hard contact output device uses at least 6-bit passive contacts to describe ground wire pile number information, alternatively, the intelligent ground wire hard contact output device uses 12-bit passive contacts to describe ground wire pile number information, and a maximum of 4096 ground wire pile numbers can be described. By the system and the working method thereof, the isolated collection of the ground wire hanging and detaching state is realized, and the network information security is improved while the intelligent management of the ground wire state is realized.
The embodiments of the present invention have been described above. However, the present invention is not limited to the above embodiment. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (20)
1. The ground wire hanging and detaching wireless acquisition isolation system comprises an error-proof host machine, an intelligent ground wire hard contact input device, an intelligent ground wire hard contact output device and a ground wire state acquisition device, wherein the ground wire state acquisition device transmits ground wire state data to the intelligent ground wire hard contact output device, the intelligent ground wire hard contact output device converts the acquired ground wire state data into hard contact output, and the intelligent ground wire hard contact input device receives the ground wire state data from the intelligent ground wire hard contact output device and transmits the ground wire state data to the error-proof host machine;
the ground wire state data comprise ground wire hanging and detaching state data and ground wire pile number information data.
2. The system of claim 1, wherein the intelligent ground wire hard contact input device comprises a ground wire hanging and dismantling state open loop terminal and a ground wire pile number information open loop terminal, and collects ground wire hanging and dismantling state and ground wire pile number information data provided by the intelligent ground wire hard contact output device.
3. The ground wire-hanging and-disassembling wireless acquisition isolation system according to claim 1, wherein the intelligent ground wire hard contact output device comprises a ground wire hanging and disassembling state open loop terminal and a ground wire pile number information open loop terminal.
4. The ground wire-hanging and-disassembling wireless acquisition isolation system according to claim 3, wherein the ground wire hanging and disassembling state open loop and the ground wire pile number information open loop adopt passive contact switches.
5. The ground wire-attached and detached wireless acquisition isolation system of claim 4, wherein the passive contact switch comprises a drive coil, an electromagnetic module, and a passive switching contact.
6. The ground wire-attached/detached wireless acquisition isolation system of claim 5, wherein the drive coil is physically isolated from the passive switching contacts.
7. The ground wire-attached/detached wireless acquisition isolation system of claim 1, wherein the intelligent ground wire hard contact output device uses 1-to 6-bit passive contacts to describe the attached/detached state of the ground wire.
8. The ground wire-attached/detached wireless acquisition isolation system of claim 1, wherein the intelligent ground wire hard contact output device uses a 3-bit passive contact to describe the attached/detached state of the ground wire.
9. The ground wire-attached/detached wireless acquisition isolation system of claim 1, wherein the intelligent ground wire hard contact output device uses at least 6-bit passive contacts to describe ground wire stake number information.
10. The ground wire-attached/detached wireless acquisition isolation system of claim 1, wherein the intelligent ground wire hard contact output device uses a 12-bit passive contact to describe ground wire stake number information.
11. The working method of the ground wire hanging and detaching wireless acquisition isolation system comprises the steps of acquiring the real-time state of a ground wire through a ground wire state acquisition device, transmitting the ground wire state to an intelligent ground wire hard contact output device in a wired or wireless transmission mode, converting the acquired ground wire state data into hard contact output by the intelligent ground wire hard contact output device, receiving the ground wire state data from the intelligent ground wire hard contact output device by the intelligent ground wire hard contact input device, transmitting the ground wire state data to an error prevention host, logically judging the ground wire state by the error prevention host according to error prevention logic set by the system, and sending an alarm signal to the ground wire which does not meet logic requirements;
the ground wire state data comprise ground wire hanging and detaching state data and ground wire pile number information data.
12. The method according to claim 11, wherein the intelligent ground wire hard contact input device includes a ground wire hanging and dismantling state open loop terminal and a ground wire pile number information open loop terminal, and collects the ground wire hanging and dismantling state and ground wire pile number information data provided by the intelligent ground wire hard contact output device.
13. The method for operating the ground wire hanging and disassembling wireless acquisition isolation system according to claim 11 or 12, wherein the intelligent ground wire hard contact output device comprises a ground wire hanging and disassembling state open loop terminal and a ground wire pile number information open loop terminal.
14. The method of claim 13, wherein the ground wire hanging and detaching state open loop and the ground wire pile number information open loop are passive contact switches.
15. The method of claim 14, wherein the passive contact switch comprises a drive coil, an electromagnetic module, and a passive switching contact.
16. The method of claim 15, wherein the drive coil is physically isolated from the passive switching contact.
17. The method of claim 11, wherein the intelligent ground hard contact output device uses 1-6 passive contacts to describe the ground connection state.
18. The method of claim 11, wherein the intelligent ground hard contact output device uses a 3-bit passive contact to describe the ground connection status.
19. The method of claim 11, wherein the intelligent ground hard contact output device uses at least 6-bit passive contacts to describe ground stake number information.
20. The method of claim 11, wherein the intelligent ground hard contact output device uses a 12-bit passive contact to describe ground stake number information.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910308651.XA CN110011419B (en) | 2019-04-17 | 2019-04-17 | Wireless acquisition isolation system in ground wire hanging and detaching state and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910308651.XA CN110011419B (en) | 2019-04-17 | 2019-04-17 | Wireless acquisition isolation system in ground wire hanging and detaching state and working method thereof |
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| CN110011419A CN110011419A (en) | 2019-07-12 |
| CN110011419B true CN110011419B (en) | 2023-09-22 |
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Families Citing this family (1)
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| CN113820631B (en) * | 2021-08-23 | 2024-04-09 | 珠海优特电力科技股份有限公司 | Intelligent ground wire hanging and detaching state identification device and identification method thereof |
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| CN201966695U (en) * | 2011-03-21 | 2011-09-07 | 长春市超高压局 | Monitoring and managing device for ground wire and ground disconnecting link of transformer substation |
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| CN203951043U (en) * | 2014-07-02 | 2014-11-19 | 北京九凌联合科技发展有限公司 | Ground wire is installed and checkout gear |
| CN208239553U (en) * | 2018-06-22 | 2018-12-14 | 广东电网有限责任公司 | Substation PT N600 ground connection on-line monitoring positioning device |
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2019
- 2019-04-17 CN CN201910308651.XA patent/CN110011419B/en active Active
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| CN201966695U (en) * | 2011-03-21 | 2011-09-07 | 长春市超高压局 | Monitoring and managing device for ground wire and ground disconnecting link of transformer substation |
| CN103675579A (en) * | 2012-09-24 | 2014-03-26 | 国网辽宁省电力有限公司大连供电公司 | Remote-signaling acquisition circuit with DC grounding automatic wire-selecting function |
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| CN203951043U (en) * | 2014-07-02 | 2014-11-19 | 北京九凌联合科技发展有限公司 | Ground wire is installed and checkout gear |
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