CN114301577B - Data acquisition outlet control device and method - Google Patents
Data acquisition outlet control device and method Download PDFInfo
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- CN114301577B CN114301577B CN202111359366.4A CN202111359366A CN114301577B CN 114301577 B CN114301577 B CN 114301577B CN 202111359366 A CN202111359366 A CN 202111359366A CN 114301577 B CN114301577 B CN 114301577B
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Abstract
The invention discloses a data acquisition outlet control device and a method, comprising the following steps: the device comprises an interface board, an opening board, a plurality of independently operated processing boards and a management board; the interface board is connected with the processing board through the bus backboard, and after the interface board collects signals, the signals are converted into electric signals and transmitted to the processing board; the switch-in board is connected with the management board through the bus backboard, and the switch-in board is used for collecting external switch quantity signals and transmitting the external switch quantity signals to the management board; the management board is connected with the processing board and the opening board through the bus backboard, receives switching value information transmitted by the opening board and transmits the switching value information to the processing board; each processing board is connected with back-end equipment through an optical port, and the processing boards are: after converting and decoding based on the electric signals to obtain sampling data, transmitting a sampling data group packet to back-end equipment; and packaging based on the switching value information and then sending to the back-end equipment. The invention realizes the redundant control of the data acquisition outlet by providing the data acquisition outlet control device.
Description
Technical Field
The invention belongs to the technical field of intelligent power grid regulation and control systems, and particularly relates to a data acquisition outlet control device and method.
Background
Smart grids are the targets of the intelligent power grid, also called as "power grid 2.0", and are based on an integrated, high-speed two-way communication network, and the smart power grid is reliably, safely, economically, efficiently, environmentally friendly and safely used through application of advanced sensing and measuring technologies, advanced equipment technologies, advanced control methods and advanced decision support system technologies.
As shown in FIG. 1, the structure of the existing data acquisition outlet control device generally has only one processing board, and once the processing board is abnormal, all devices at the back end cannot normally receive data (analog data, IEC60044-8 message data, IEC61850-9-2 message data and switching value signals), and the outlet channel of the board cannot be controlled by the device, so that the function of the whole system is lost.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a data acquisition outlet control device and a method, which realize redundant control of a data acquisition outlet.
To solve the above technical problem, in a first aspect, the present invention provides a data acquisition outlet control device, including: the device comprises an interface board, an opening board, a plurality of independently operated processing boards and a management board;
the interface board is connected with the processing board through the bus backboard, and after the interface board collects signals, the signals are converted into electric signals and transmitted to the processing board;
the switch-in board is connected with the management board through the bus backboard, and the switch-in board is used for collecting external switch quantity signals and transmitting the external switch quantity signals to the management board;
the management board is connected with the processing board and the opening board through the bus backboard, receives switching value information transmitted by the opening board and transmits the switching value information to the processing board; each processing board is connected with back-end equipment through an optical port, and the processing boards are: after converting and decoding based on the electric signals to obtain sampling data, transmitting a sampling data group packet to back-end equipment; grouping based on the switching value information and then sending to back-end equipment; receiving a GOOSE message transmitted by the back-end equipment, decoding to obtain a control command, and transmitting the control command to the management board;
the management board is connected with the processing board and the opening board through the bus backboard, receives the control command transmitted by the processing board, and obtains the total control command and transmits the total control command to the opening board after performing logic judgment based on the control command;
the opening plate is provided with a plurality of outlet channels, and the on-off of the corresponding outlet channels is controlled based on the total control command.
Further, the access board is provided with a plurality of remote signaling channels, and the access board is connected with the multi-channel switching value signals through cables.
Furthermore, the number of the processing boards is two, and each processing board comprises a plurality of optical ports capable of receiving and transmitting GOOSE messages and transmitting IEC 61850-9-2.
Further, the interface board comprises an analog quantity interface board and a digital quantity interface board, wherein:
the analog quantity interface board is connected with the processing board through the bus backboard, and after the analog quantity interface board collects the alternating current analog signals, the alternating current analog signals are converted into first electric signals and transmitted to the processing board;
the digital quantity interface board is connected with the processing board through the bus backboard, and after the digital quantity interface board collects the optical signals, the optical signals are converted into second electric signals and transmitted to the processing board.
Further, the process plate:
converting the first electric signal to obtain corresponding first sampling data;
decoding the second electric signal to obtain corresponding second sampling data;
and after the first sampling data and the second sampling data are synchronously processed and packaged, the first sampling data and the second sampling data are sent to the back-end equipment through an optical port.
Further, the analog interface board comprises a plurality of ports which can be accessed with alternating current analog signals, and is provided with a plurality of electromagnetic transformers which convert externally accessed large signals into electric signals of 0-10V;
the digital quantity interface board comprises a plurality of optical ports which can be connected with the electronic transformer to output messages and a plurality of optical ports which are used for receiving the messages output by the opposite side devices.
Further, the processing board converts the first electric signal through an ADC sampling module on the processing board to obtain corresponding first sampling data, and decodes the second electric signal through an IEC60044-8 decoding module and an IEC61850-9-2 decoding module to obtain corresponding second sampling data; the processing board carries out synchronous processing on the first sampling data and the second sampling data in a resampling mode, and sends the first sampling data and the second sampling data to the back-end equipment through an optical port after being packaged by an IEC61850-9-2 coding module.
Furthermore, the processing board packs the switching value signals through the GOOSE encoding module, sends the packed switching value signals to the back-end equipment through the optical port, receives the GOOSE messages transmitted by the back-end equipment through the optical port, decodes the GOOSE messages through the GOOSE decoding module, acquires control orders, and sends the control orders to the management board through the bus backboard.
Further, the management board monitors the on-off condition of the communication of the control command issued by all the processing boards in real time, and when detecting that the control command of a certain processing board is not received within a certain time, clears all the control commands of the processing boards to zero before generating the total control command.
In a second aspect, the present invention also provides a data acquisition outlet control method, which is executed by a plurality of independently operating processing boards, including:
acquiring an electric signal and switching value information;
after converting and decoding based on the electric signals to obtain sampling data, transmitting a sampling data group packet to back-end equipment;
grouping based on the switching value information and then sending to back-end equipment;
and receiving the GOOSE message transmitted by the back-end equipment, decoding the GOOSE message to obtain a control command, and transmitting the control command to a management board, wherein the management board performs on-off control on an outlet channel of the outlet board based on the control command.
Compared with the prior art, the invention has the following beneficial effects: when any processing board is abnormal, only the back-end equipment connected to the processing board is affected, and the back-end equipment connected to other processing boards is not affected, so that the fault influence range is reduced, the situation that when only one processing board is abnormal, all the back-end equipment cannot normally receive data (analog quantity data, IEC60044-8 message data, IEC61850-9-2 message data and switching value signals) is avoided, and the outlet channel of the opening board cannot be controlled through the equipment, so that the loss of functions of the whole system is caused is avoided.
Drawings
FIG. 1 is a schematic diagram of a data acquisition outlet control device in the prior art;
fig. 2 is a schematic block diagram of a data acquisition outlet control device according to a first embodiment of the present invention.
Detailed Description
The present invention is further described below, and the following examples are only for more clearly illustrating the technical solution of the present invention, but are not to be construed as limiting the scope of the present invention.
Embodiment one:
the data acquisition outlet control device of the present invention, as shown in fig. 2, comprises: the power panel, analog quantity interface board, digital quantity interface board, switch-in board, switch-out board, processing board and management board that link to each other through bus backplate, wherein:
analog interface board: a port comprising a plurality of ac-capable analog signals; the analog interface board is provided with a plurality of electromagnetic transformers, and can convert externally accessed large signals into 0-10V electric signals, and then the electric signals are respectively connected to the two processing boards through the bus backboard;
digital quantity interface board: the device comprises a plurality of optical ports which can be connected with the output message of the electronic transformer and a plurality of optical ports which are used for receiving the output message of the opposite side device; the digital quantity interface board is connected with a digital quantity signal (IEC 60044-8 message) output by the multi-path electronic transformer and a digital quantity signal (IEC 61850-9-2 message) output by the multi-path opposite-side similar device; after each path of input optical signals are converted into electric signals, the electric signals are respectively connected to two processing boards through a bus backboard;
opening the plate: the remote signaling system is provided with a plurality of remote signaling channels, and a plurality of switching value signals are accessed through cables. The starting board sends the collected signal quantity to the management board through the bus backboard;
management board: and transmitting the switching value information transmitted by the opening board to the two processing boards through the bus backboard on the bridge with information interaction of the boards, receiving control commands transmitted by the two processing boards through the bus backboard, and after carrying out logic judgment on the control commands, transmitting the total control commands to the opening board to control the on-off of the corresponding outlet channels.
And (3) treating a plate: two processing boards with identical functions and independently run. Each processing board comprises a plurality of optical ports capable of receiving and transmitting GOOSE messages and transmitting IEC 61850-9-2;
the processing board obtains the electric signal of the analog interface board through the bus backboard, and obtains corresponding sampling data after conversion by the ADC sampling module on the processing board; the processing board obtains the electric signal of the digital quantity interface board through the bus backboard, and obtains the corresponding sampling data after decoding through the IEC60044-8 decoding module and the IEC61850-9-2 decoding module. Then, synchronous processing is carried out on the sampled data in a resampling mode, and the sampled data are packaged by an IEC61850-9-2 coding module and then sent to back-end equipment through an optical port;
the processing board packages the switching value signals sent by the management board through the GOOSE coding module and sends the switching value signals to the back-end equipment through the optical port; and meanwhile, the GOOSE message transmitted by the back-end equipment is received through the optical port, the control command is obtained after the GOOSE message is decoded by the GOOSE decoding module, and the control command is transmitted to the management board through the bus backboard.
And (3) opening a plate: having a plurality of outlet channels connected by cables to control the primary devices. The opening board receives the control command issued by the management board through the bus backboard, and controls the on-off of the corresponding outlet channel according to the control command.
The power panel provides the working power required by each plate of the device.
The specific working process of each plate module is as follows:
1) The device possesses two processing boards that the function is the same completely, is symmetrical framework, and every processing board can all carry out independent collection and processing to the analog quantity, the digital quantity of external input, switching value, and another processing board can not be influenced to any processing board is unusual, also can not lead to whole device to be unusual, adopts this symmetrical framework mode, can reduce the trouble influence scope half, improves the reliability.
2) For the sample value receiving function. The analog quantity interface board and the digital quantity interface board are all pure hardware circuits, and have no FPGA chip or program code. The fault rate of the pure hardware circuit is extremely low, and the design reduces the probability of simultaneous abnormality of the access of sampling values of two processing boards.
3) For the sample value receiving function. The analog access ports and the digital access ports are distributed on different interface boards. The single interface board is abnormal, only the corresponding access function is affected, and the abnormal influence range is reduced.
4) For the sample value receiving function. The two processing boards independently operate, and the two processing boards respectively process the sampling values. Each processing board is provided with an ADC sampling module, an IEC60044-8 decoding module and an IEC61850-9-2 decoding module. The modules are mutually independent, and the problem of abnormal expansion caused by mutual coupling of the modules is prevented.
5) For the sample value sending function. The two processing boards independently operate, and each processing board synchronously processes the received sampling data (analog quantity data, IEC60044-8 message data and IEC61850-9-2 message data) respectively, and then packages the sampling data into IEC61850-9-2 messages which are sent to the back-end equipment through the optical port of the board.
6) For the GOOSE receiving function, the two processing boards independently operate, each processing board is provided with a GOOSE decoding module, and a control order is obtained after the GOOSE message received by the processing boards is decoded and is transmitted to the management board.
7) For the GOOSE sending function, two processing boards independently operate, each processing board is provided with a GOOSE coding module, and switching value signals transmitted by the management board are packaged into GOOSE messages and sent to the back-end equipment through an optical port of the board.
8) The switch board collects external switch value signals, and the switch value signals are transmitted to the management board through the bus backboard.
9) The opening board receives the control command issued by the management board and controls the on-off of the outlet channel according to the control command.
10 The management board receives the control orders issued by the two processing boards, and generates the control order phase or the total control order (the control order is 1, which indicates that the corresponding outlet channel is closed; control command 0, indicating that the corresponding outlet channel is open), and then the total control command is transmitted to the outlet board through the bus back plate. And meanwhile, the management board transmits the switching value signals transmitted by the switch-in board to the two processing boards through the bus backboard.
11 The management board monitors the on-off condition of the communication of the control command issued by the two processing boards in real time. When the management board detects that the control command of a certain processing board is not received within a certain time, the management board can clear the control command of the corresponding processing board to be zero before generating the total control command. The problem that after the outlet channel of the outlet plate is closed by the control command on one processing plate, communication is interrupted and can not be controlled by the control command of the other processing plate is prevented.
In the invention, when any processing board is abnormal, only the back-end equipment connected with the processing board is affected, but the back-end equipment connected with other processing boards is not affected, thereby reducing the fault influence range, and avoiding the situation that all the back-end equipment cannot normally receive data (analog quantity data, IEC60044-8 message data, IEC61850-9-2 message data and switching value signals) and cannot control the outlet channel of the board to be opened through the equipment, thereby causing the loss of functions of the whole system when only one processing board is abnormal.
Embodiment two:
a data acquisition outlet control method performed by a plurality of independently operating processing boards in the first embodiment, comprising:
acquiring an electric signal and switching value information;
after converting and decoding based on the electric signals to obtain sampling data, transmitting a sampling data group packet to back-end equipment;
grouping based on the switching value information and then sending to back-end equipment;
and receiving the GOOSE message transmitted by the back-end equipment, decoding the GOOSE message to obtain a control command, and transmitting the control command to a management board, wherein the management board performs on-off control on an outlet channel of the outlet board based on the control command.
Embodiment III:
the embodiment of the invention also provides a data acquisition outlet control device, which comprises a processor and a storage medium;
the storage medium is used for storing instructions;
the processor is configured to operate according to the instructions to perform the steps of the method of:
acquiring an electric signal and switching value information;
after converting and decoding based on the electric signals to obtain sampling data, transmitting a sampling data group packet to back-end equipment;
grouping based on the switching value information and then sending to back-end equipment;
and receiving the GOOSE message transmitted by the back-end equipment, decoding the GOOSE message to obtain a control command, and transmitting the control command to a management board, wherein the management board performs on-off control on an outlet channel of the outlet board based on the control command.
Embodiment four:
the embodiment of the invention also provides a computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
acquiring an electric signal and switching value information;
after converting and decoding based on the electric signals to obtain sampling data, transmitting a sampling data group packet to back-end equipment;
grouping based on the switching value information and then sending to back-end equipment;
and receiving the GOOSE message transmitted by the back-end equipment, decoding the GOOSE message to obtain a control command, and transmitting the control command to a management board, wherein the management board performs on-off control on an outlet channel of the outlet board based on the control command.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks. These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the foregoing embodiments are merely for illustrating the technical aspects of the present invention and not for limiting the scope thereof, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes, modifications or equivalents may be made to the specific embodiments of the present invention after reading the present invention, and these changes, modifications or equivalents are within the scope of the invention as defined in the appended claims.
Claims (10)
1. A data acquisition outlet control device, comprising: the device comprises an interface board, an opening board, a plurality of independently operated processing boards and a management board;
the interface board is connected with the processing board through the bus backboard, and after the interface board collects signals, the signals are converted into electric signals and transmitted to the processing board;
the switch-in board is connected with the management board through the bus backboard, and the switch-in board is used for collecting external switch quantity signals and transmitting the external switch quantity signals to the management board;
the management board is connected with the processing board and the opening board through the bus backboard, receives switching value information transmitted by the opening board and transmits the switching value information to the processing board; each processing board is connected with back-end equipment through an optical port, and the processing boards are: after converting and decoding based on the electric signals to obtain sampling data, transmitting a sampling data group packet to back-end equipment; grouping based on the switching value information and then sending to back-end equipment; receiving a GOOSE message transmitted by the back-end equipment, decoding to obtain a control command, and transmitting the control command to the management board;
the management board is connected with the processing board and the opening board through the bus backboard, receives the control command transmitted by the processing board, and obtains the total control command and transmits the total control command to the opening board after performing logic judgment based on the control command;
the opening plate is provided with a plurality of outlet channels, and the on-off of the corresponding outlet channels is controlled based on the total control command.
2. The data acquisition outlet control device of claim 1 wherein the access board has a plurality of remote signaling channels and the access board accesses the multiple switching signals via cables.
3. The data acquisition outlet control device according to claim 1, wherein the number of the processing boards is two, and each processing board comprises a plurality of optical ports capable of receiving and transmitting GOOSE messages and transmitting IEC 61850-9-2.
4. The data acquisition outlet control device of claim 1, wherein the interface board comprises an analog interface board and a digital interface board, wherein:
the analog quantity interface board is connected with the processing board through the bus backboard, and after the analog quantity interface board collects the alternating current analog signals, the alternating current analog signals are converted into first electric signals and transmitted to the processing board;
the digital quantity interface board is connected with the processing board through the bus backboard, and after the digital quantity interface board collects the optical signals, the optical signals are converted into second electric signals and transmitted to the processing board.
5. The data acquisition outlet control device of claim 4 wherein the processing board:
converting the first electric signal to obtain corresponding first sampling data;
decoding the second electric signal to obtain corresponding second sampling data;
and after the first sampling data and the second sampling data are synchronously processed and packaged, the first sampling data and the second sampling data are sent to the back-end equipment through an optical port.
6. The data acquisition outlet control device according to claim 4, wherein the analog interface board comprises a plurality of ports to which alternating current analog signals can be connected, and the analog interface board is provided with a plurality of electromagnetic transformers for converting externally connected large signals into electrical signals of 0 to 10V;
the digital quantity interface board comprises a plurality of optical ports which can be connected with the electronic transformer to output messages and a plurality of optical ports which are used for receiving the messages output by the opposite side devices.
7. The data acquisition outlet control device according to claim 4, wherein the processing board converts the first electrical signal through an ADC sampling module on the board to obtain corresponding first sampled data, and decodes the second electrical signal through an IEC60044-8 decoding module and an IEC61850-9-2 decoding module to obtain corresponding second sampled data; the processing board carries out synchronous processing on the first sampling data and the second sampling data in a resampling mode, and sends the first sampling data and the second sampling data to the back-end equipment through an optical port after being packaged by an IEC61850-9-2 coding module.
8. The device according to claim 1, wherein the processing board packages the switching value signal by the GOOSE encoding module, sends the signal to the back-end device via the optical port, and the processing board receives the GOOSE message from the back-end device via the optical port, decodes the GOOSE message by the GOOSE decoding module, obtains the control command, and sends the control command to the management board via the bus back board.
9. The data acquisition outlet control device according to claim 1, wherein the management board monitors the on-off condition of the communication of the control commands issued by all the processing boards in real time, and clears all the control commands of a certain processing board to zero before generating the total control command when detecting that the control command of the certain processing board is not received within a certain time.
10. A data acquisition outlet control method performed by a plurality of independently operating processing boards of claim 1, comprising:
acquiring an electric signal and switching value information;
after converting and decoding based on the electric signals to obtain sampling data, transmitting a sampling data group packet to back-end equipment;
grouping based on the switching value information and then sending to back-end equipment;
and receiving the GOOSE message transmitted by the back-end equipment, decoding the GOOSE message to obtain a control command, and transmitting the control command to a management board, wherein the management board performs on-off control on an outlet channel of the outlet board based on the control command.
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