CN110022380B - Access terminal for communication of safety and stability control system - Google Patents
Access terminal for communication of safety and stability control system Download PDFInfo
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- CN110022380B CN110022380B CN201910334586.8A CN201910334586A CN110022380B CN 110022380 B CN110022380 B CN 110022380B CN 201910334586 A CN201910334586 A CN 201910334586A CN 110022380 B CN110022380 B CN 110022380B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/26—Special purpose or proprietary protocols or architectures
Abstract
The invention provides an access terminal used in the communication of a safety and stability control system, which comprises a communication unit and a core processing unit; the upper connecting module of the communication unit is provided with a plurality of high-speed upper communication interfaces connected with the safety and stability control device, and the lower connecting module of the communication unit is provided with a plurality of high-speed lower communication interfaces connected with the control terminal; the first processor of the core processing unit is connected with the lower connection module, receives and pre-processes data sent by the control terminal and forwards the data to the second processor; or receiving a control instruction obtained by the analysis of the second processor, encapsulating the protocol and then sending the encapsulated protocol to the control terminal; the second processor of the core processing unit is connected with the upper connecting module, receives the data preprocessed by the first processor, performs protocol conversion and uploads the data to the safety and stability control device; or receiving the instruction sent by the safety and stability control device, analyzing and forwarding the instruction to the first processor. The invention solves the problems of small access quantity, low communication speed and weak processing capacity under new requirements.
Description
Technical Field
The invention relates to the technical field of power grid safe operation, in particular to an access terminal used in safety and stability control system communication.
Background
Under the large background of the rapid development of a large amount of new energy grid connection and a wireless communication technology, the communication mode of a traditional safety and stability control system is changed due to the fact that the control object (such as a control terminal) and the structural form of a safety and stability control device are changed. Firstly, the control objects are all expanded towards a large-scale direction, wherein the control object at the power supply end is expanded towards a large-scale new energy unit, and the control object at the load end is expanded towards a large-scale interruptible load; secondly, the control objects develop towards refinement and mass, for example, a new energy lean control system of a sending end system and a precise load control system of a source end all present the characteristic that the number of the control objects of a single system exceeds 1000; finally, the system communication mode between the control object and the safety and stability control device is developed in a diversified direction, for example, a single mode based on an SDH/2M dedicated channel in the conventional system is expanded to a mode in which a large number of dedicated optical fibers, wireless 4G and in-station networked data transmission coexist.
Under the background of such application requirements, the traditional safety and stability control device is difficult to meet the requirements, and mainly shows that the traditional safety and stability control device takes a feeder line, a circuit breaker of a unit or a transformer as a main control object, a relay as a main output control unit, and a processing module of the traditional safety and stability control device can only perform logic judgment and internal communication of the device and input and output control that an IO (input/output) module can only process switching values and electric values; however, the new requirement uses the lower-voltage-class load line control terminal, the new energy unit controller, the energy storage controller and other next-level control terminals as control objects, and the ethernet communication is the main control means, because the IO module of the conventional safety and stability control device does not have enough communication speed and enough number of external interfaces, and the computing power of the processing module is also limited, the structure and the processing capability of the conventional safety and stability control device cannot meet the requirement, and the requirement of accessing the communication of a large number of intelligent terminals to the real-time processing is difficult to adapt.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide an access terminal for communication in a safety and stability control system, which is used for real-time control between a safety and stability control device and a control terminal, and solves the problems of a small number of accesses, low communication rate, and weak processing capability of a conventional safety and stability control device when processing a load line control terminal with a lower voltage level, a new energy unit controller, an energy storage controller, and other next-level control terminals under a new requirement, and improves the stability level and the operation economy of a power grid.
In order to solve the above technical problem, an embodiment of the present invention provides an access terminal for use in communication of a security and stability control system, which is used for real-time control between a security and stability control apparatus and a control terminal, and includes a communication unit and a core processing unit; wherein the content of the first and second substances,
the communication unit comprises an upper connection module and a lower connection module; the upper communication module is provided with a plurality of upper communication interfaces with high speed in advance and connected with the safety and stability control device to realize high-speed data receiving and transmitting; a plurality of high-speed downlink communication interfaces are preset on the downlink module and are connected with the control terminal to realize high-speed data receiving and transmitting;
the core processing unit comprises a first processor and a second processor which are interconnected; the first processor is further connected with the lower connection module and used for receiving the data sent by the control terminal, preprocessing the received data sent by the control terminal and forwarding the preprocessed data to the second processor; or receiving a control instruction obtained by analyzing an instruction sent by the second processor to the safety and stability control device, and sending the received control instruction obtained by analyzing the second processor to the control terminal after performing protocol encapsulation; the second processor is also connected with the upper connection module and is used for receiving the data preprocessed by the first processor, carrying out protocol conversion on the data and further uploading the data subjected to the protocol conversion to the safety and stability control device; or receiving and analyzing the command issued by the safety and stability control device, and further forwarding the control command obtained after analysis to the first processor.
And the first processor and the second processor are in data communication in a memory sharing mode.
The upper communication interface preset on the upper connection module and the lower communication interface preset on the lower connection module are high-speed gigabit Ethernet interfaces or optical fiber interfaces.
A plurality of RS232 serial ports are also preset on the lower connecting module; and a plurality of E1 interfaces, B code interfaces and RS232 serial ports are preset on the upper connecting module.
The first processor preprocesses the data and comprises data verification, data synchronization and data combination. The embodiment of the invention has the following beneficial effects:
1. according to the invention, data receiving and processing are separated, the first processor is responsible for receiving control terminal data, carrying out data preprocessing, integrating and handing the data to the second processor for processing through sharing the memory, so that the defects of weak processing capability and poor real-time performance caused by the fact that a single processor needs to receive the data and process the data are avoided, and the problems of small access quantity, low communication rate and weak processing capability are solved;
2. the invention has abundant peripheral interfaces, can receive the data of a plurality of paths of control terminals, adopts a distributed architecture and is convenient for the flexible realization of a communication protocol;
3. the invention isolates the upstream safety and stability control device from the downstream control terminal, has no data interference, and the two processors respectively play their own roles, thus the system structure is clear.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.
Fig. 1 is a schematic system structure diagram of an access terminal used in a security and stability control system communication according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an access terminal for use in a security and stability control system communication according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, an access terminal for use in communication of a security and stability control system according to an embodiment of the present invention is used for real-time control between a security and stability control apparatus a and a control terminal B, and includes a communication unit 1 and a core processing unit 2; wherein the content of the first and second substances,
the communication unit 1 comprises an upper connecting module 11 and a lower connecting module 12; wherein, a plurality of high-speed uplink communication interfaces preset on the uplink module 11 are connected with the safety and stability control device a to realize high-speed data transceiving; a plurality of high-speed downlink communication interfaces preset on the downlink module 12 are connected with the control terminal B to realize high-speed data transceiving;
the core processing unit 2 comprises a first processor 21 and a second processor 22 interconnected; the first processor 21 is further connected to the lower connection module 12, and is configured to receive data sent by the control terminal B, pre-process the received data sent by the control terminal B, and forward the data to the second processor 22; or receiving a control instruction obtained by analyzing an instruction issued by the second processor 22 to the safety and stability control device a, and performing protocol encapsulation on the received control instruction obtained by analyzing the second processor 22 and then issuing the control instruction to the control terminal B; the second processor 22 is further connected to the upper connection module 11, and is configured to receive the data preprocessed by the first processor 21, perform protocol conversion on the data, and further upload the data subjected to protocol conversion to the safety and stability control device a; or receive and analyze the command issued by the safety and stability control device a, and further forward the control command obtained after the analysis to the first processor 21.
It should be noted that the core processing unit 2 adopts a dual-core architecture of the first processor 21 and the second processor 22 to isolate the upstream safety and stability control device a from the downstream control terminal B, so that there is no data interference, the two processors respectively perform their own functions, and the system structure is clear. The first processor 21 and the second processor 22 perform data communication by means of a shared memory, the first processor 21 is responsible for receiving data of the control terminal B, and after the data is preprocessed, the data is integrated and handed to the second processor 22 by means of the shared memory, so that the defects of weak processing capability and poor real-time performance caused by that a single processor needs to receive the data and process the data are avoided, and the problems of small access quantity, low communication rate and weak processing capability are solved. The pre-processing of the data by the first processor 21 includes data verification, data synchronization, and data merging. In one embodiment, the first processor 21 and the second processor 22 are both CPUs, such that the core processing unit 2 forms a dual core CPU architecture.
In the embodiment of the present invention, the upper communication interface preset on the upper connection module 11 and the lower communication interface preset on the lower connection module 12 are high-speed gigabit ethernet interfaces or optical fiber interfaces. Wherein, a plurality of RS232 serial ports are also preset on the lower connecting module 12; the upper connecting module 11 is also preset with a plurality of E1 interfaces, B code interfaces and RS232 serial ports. In one embodiment, the downlink module 12 includes 4 gigabit ethernet interfaces and 3 RS232 serial ports for debugging and printing; the upper connecting module 11 comprises 2 pairs of E1 interfaces, 4 gigabit Ethernet interfaces, 1B code interface and 1 RS232 serial port for debugging and printing.
As shown in fig. 2, an operation principle of an access terminal used in a security and stability control system communication in an embodiment of the present invention is as follows:
the first processor 21 of the access terminal receives the real-time electrical quantity, the position information and the trip signal collected by the control terminal B through the down-link module 12 based on the ethernet protocol, further checks the data when receiving the data sent by the control terminal B, confirms that the received data is correct data, stores the correct data, discards illegal data, synchronizes and combines the received control terminal data at a fixed frequency, and then transmits the processed data to the second processor 22 through a shared memory;
the second processor 22 of the access terminal performs protocol conversion on the received data, and then sends the data to the security and stability control apparatus a through the port E1 of the uplink module 11.
Similarly, the second processor 22 of the access terminal receives and analyzes the instruction issued by the security and stability control apparatus a through the E1 port of the uplink module 11, and then transmits the control instruction obtained by analysis to the first processor 21 through the shared memory;
the first processor 21 of the access terminal performs protocol encapsulation after receiving the analyzed control command, and issues the control command to the corresponding control terminal B to complete the issue of the control command.
The embodiment of the invention has the following beneficial effects:
1. according to the invention, data receiving and processing are separated, the first processor is responsible for receiving control terminal data, carrying out data preprocessing, integrating and handing the data to the second processor for processing through sharing the memory, so that the defects of weak processing capability and poor real-time performance caused by the fact that a single processor needs to receive the data and process the data are avoided, and the problems of small access quantity, low communication rate and weak processing capability are solved;
2. the invention has abundant peripheral interfaces, can receive the data of a plurality of paths of control terminals, adopts a distributed architecture and is convenient for the flexible realization of a communication protocol;
3. the invention isolates the upstream safety and stability control device from the downstream control terminal, has no data interference, and the two processors respectively play their own roles, thus the system structure is clear.
It should be noted that, in the above device embodiment, each included unit is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be achieved; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (4)
1. An access terminal used in the communication of a safety and stability control system is used for the real-time control between a safety and stability control device and a control terminal, and is characterized by comprising a communication unit and a core processing unit; wherein the content of the first and second substances,
the communication unit comprises an upper connection module and a lower connection module; the upper communication module is provided with a plurality of upper communication interfaces with high speed in advance and connected with the safety and stability control device to realize high-speed data receiving and transmitting; a plurality of high-speed downlink communication interfaces are preset on the downlink module and are connected with the control terminal to realize high-speed data receiving and transmitting;
the core processing unit comprises a first processor and a second processor which are interconnected; the first processor is further connected with the lower connection module and used for receiving the data sent by the control terminal, preprocessing the received data sent by the control terminal and forwarding the preprocessed data to the second processor; or receiving a control instruction obtained by analyzing an instruction sent by the second processor to the safety and stability control device, and sending the received control instruction obtained by analyzing the second processor to the control terminal after performing protocol encapsulation; the second processor is also connected with the upper connection module and is used for receiving the data preprocessed by the first processor, carrying out protocol conversion on the data and further uploading the data subjected to the protocol conversion to the safety and stability control device; or receiving and analyzing the command issued by the safety and stability control device, and further forwarding the control command obtained after analysis to the first processor;
and the first processor and the second processor are in data communication in a memory sharing mode.
2. The access terminal of claim 1, wherein the predetermined uplink communication interface of the uplink module and the predetermined downlink communication interface of the downlink module are high-speed gigabit ethernet interfaces or fiber interfaces.
3. The access terminal for use in communication of a security and stability control system according to claim 2, wherein a plurality of RS232 serial ports are further preset on the downlink module; and a plurality of E1 interfaces, B code interfaces and RS232 serial ports are preset on the upper connecting module.
4. The access terminal for use in security and stability control system communications of claim 1, wherein the pre-processing of data by the first processor includes data checking, data synchronization, and data merging.
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| CN201910334586.8A CN110022380B (en) | 2019-04-24 | 2019-04-24 | Access terminal for communication of safety and stability control system |
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| CN201910334586.8A CN110022380B (en) | 2019-04-24 | 2019-04-24 | Access terminal for communication of safety and stability control system |
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| CN110022380B true CN110022380B (en) | 2022-02-25 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932848A (en) * | 2015-06-16 | 2015-09-23 | 深圳供电局有限公司 | Printing transmission data acquisition device and method for power system relay protection equipment |
| CN105610876A (en) * | 2016-04-01 | 2016-05-25 | 江苏科技大学 | Industrial control type automatic network communication protocol converter and communication protocol conversion method |
| CN106657115A (en) * | 2016-12-30 | 2017-05-10 | 深圳市英威腾电气股份有限公司 | Frequency converter control system and protocol conversion card thereof |
| CN106850357A (en) * | 2016-12-12 | 2017-06-13 | 全球能源互联网研究院 | A kind of electric power wide area communicator |
| CN108710312A (en) * | 2018-05-18 | 2018-10-26 | 南方电网科学研究院有限责任公司 | The long-range real-time emulation system of safety and stability control device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10530736B2 (en) * | 2016-01-19 | 2020-01-07 | Cisco Technology, Inc. | Method and apparatus for forwarding generic routing encapsulation packets at a network address translation gateway |
-
2019
- 2019-04-24 CN CN201910334586.8A patent/CN110022380B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932848A (en) * | 2015-06-16 | 2015-09-23 | 深圳供电局有限公司 | Printing transmission data acquisition device and method for power system relay protection equipment |
| CN105610876A (en) * | 2016-04-01 | 2016-05-25 | 江苏科技大学 | Industrial control type automatic network communication protocol converter and communication protocol conversion method |
| CN106850357A (en) * | 2016-12-12 | 2017-06-13 | 全球能源互联网研究院 | A kind of electric power wide area communicator |
| CN106657115A (en) * | 2016-12-30 | 2017-05-10 | 深圳市英威腾电气股份有限公司 | Frequency converter control system and protocol conversion card thereof |
| CN108710312A (en) * | 2018-05-18 | 2018-10-26 | 南方电网科学研究院有限责任公司 | The long-range real-time emulation system of safety and stability control device |
Non-Patent Citations (1)
| Title |
|---|
| "输变电设备物联网关键技术研究";何杰;《中国优秀博士论文全文数据库》;20140915;第1-156页 * |
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