CN114301577A - Data acquisition outlet control device and method - Google Patents
Data acquisition outlet control device and method Download PDFInfo
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Abstract
The invention discloses a data acquisition outlet control device and a method, comprising the following steps: the system comprises an interface board, an opening board, a plurality of processing boards and a management board which run independently; the interface board is connected with the processing board through the bus back board, and the interface board converts the signals into electric signals after collecting the signals and transmits the electric signals to the processing board; the switching board is connected with the management board through the bus back board, and external switching value signals are collected and then transmitted to the management board; the management board is connected with the processing board and the opening board through the bus back board, receives switching value information transmitted by the opening board and transmits the switching value information to the processing board; every handle the board and all connect the rear end equipment through the light mouth, handle the board: after the sampling data is obtained by carrying out conversion and decoding on the basis of the electric signals, the sampling data is packaged and transmitted to the back-end equipment; and packaging the switching value information and then sending the switching value information to the back-end equipment. The invention provides a data acquisition outlet control device, which realizes the redundancy control of the data acquisition outlet.
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
The smart grid is the intellectualization of the grid, also called as "grid 2.0", is established on the basis of an integrated, high-speed two-way communication network, and realizes the purposes of reliability, safety, economy, high efficiency, environmental friendliness and safe use of the grid through the application of advanced sensing and measuring technology, advanced equipment technology, advanced control method and advanced decision support system technology, and the main characteristics of the smart grid comprise self-healing, excitation and user protection, attack resistance, provision of electric energy quality meeting the requirements of users, allowance of access of various different power generation forms, starting of the power market and optimized and efficient operation of assets.
As shown in fig. 1, only one processing board is generally provided in the structure of the existing data acquisition and export control device, 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 cannot control and open an export channel of the board through the device, thereby causing the function loss of the whole system.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, provides a data acquisition outlet control device and a data acquisition outlet control method, and realizes the redundancy control of a data acquisition outlet.
In order to solve the above technical problem, in a first aspect, the present invention provides a data acquisition outlet control device, including: the system comprises an interface board, an opening board, a plurality of processing boards and a management board which run independently;
the interface board is connected with the processing board through the bus back board, and the interface board converts the signals into electric signals after collecting the signals and transmits the electric signals to the processing board;
the switching board is connected with the management board through the bus back board, and external switching value signals are collected and then transmitted to the management board;
the management board is connected with the processing board and the opening board through the bus back board, receives switching value information transmitted by the opening board and transmits the switching value information to the processing board; every handle the board and all connect the rear end equipment through the light mouth, handle the board: after the sampling data is obtained by carrying out conversion and decoding on the basis of the electric signals, the sampling data is packaged and transmitted to the back-end equipment; packaging the switching value information and then sending the switching value information to back-end equipment; receiving a GOOSE message transmitted by the back-end equipment, decoding the GOOSE message to obtain a control order, and transmitting the control order to a management board;
the management board is connected with the processing board and the output board through the bus back board, receives the control command transmitted by the processing board, performs logic judgment based on the control command, obtains a master control command and transmits the master control command to the output board;
the outlet plate is provided with a plurality of outlet channels, and the on-off of the corresponding outlet channels is controlled based on a master control command.
Furthermore, the opening plate is provided with a plurality of remote signaling channels, and the opening plate 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 sending GOOSE messages and IEC 61850-9-2.
Further, the interface board includes 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 back board, and converts alternating current analog signals into first electric signals and transmits the first electric signals to the processing board after the alternating current analog signals are collected by the analog quantity interface board;
and the digital quantity interface board is connected with the processing board through the bus back board, and the digital quantity interface board converts the optical signals into second electric signals and transmits the second electric signals to the processing board after acquiring the optical signals.
Further, 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 back-end equipment through an optical port.
Furthermore, the analog quantity interface board comprises a plurality of ports capable of accessing alternating current analog signals, and the analog quantity interface board is provided with a multi-path electromagnetic mutual inductor which converts externally accessed large signals into 0-10V electric signals;
the digital quantity interface board comprises a plurality of optical ports which can be connected with the output messages of the electronic mutual inductor and a plurality of optical ports which are used for receiving the output messages of the opposite side device.
Furthermore, the processing board converts the first electric signal through an ADC (analog-to-digital converter) sampling module on the 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; and the processing board synchronously processes the first and second sampling data in a resampling mode, packages the first and second sampling data by an IEC61850-9-2 coding module, and sends the first and second sampling data to the back-end equipment through an optical port.
Further, the processing board packages the switching value signal through the GOOSE coding module and then sends the packaged switching value signal to the back-end device through the optical port, receives a GOOSE message sent by the back-end device through the optical port, decodes the GOOSE message through the GOOSE decoding module to obtain a control order, and sends the control order to the management board through the bus backplane.
Furthermore, 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 the control commands of a certain processing board to be zero before generating the master control command when detecting that the control command of the certain processing board is not received within a certain time.
In a second aspect, the present invention further provides a data acquisition outlet control method, which is executed by a plurality of independently operating processing boards, and includes:
acquiring electrical signals and switching value information;
after the sampling data is obtained by carrying out conversion and decoding on the basis of the electric signals, the sampling data is packaged and transmitted to the back-end equipment;
packaging the switching value information and then sending the switching value information to back-end equipment;
and receiving the GOOSE message transmitted by the back-end equipment, decoding the GOOSE message to obtain a control order, and transmitting the control order to a management board, wherein the management board performs on-off control on an outlet channel of the opening board based on the control order.
Compared with the prior art, the invention has the following beneficial effects: when any one processing board is abnormal, only the back-end equipment accessed to the processing board is affected, and the back-end equipment accessed to other processing boards is not affected, so that the fault influence range is reduced, and the condition 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), and the outlet channel of the board cannot be controlled to be opened through the equipment, so that the function of the whole system is lost is avoided.
Drawings
FIG. 1 is a schematic diagram of a data acquisition outlet control device according to 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 used to more clearly illustrate the technical solutions of the present invention, but not to limit the scope of the present invention.
The first embodiment is as follows:
a data collection outlet control apparatus of the present invention, as shown in fig. 2, includes: the power panel, the analog quantity interface board, the digital quantity interface board, the board of opening into, the board of opening out, processing board and management board that link to each other through the bus backplate, wherein:
an analog quantity interface board: comprises a plurality of ports which can access alternating current analog signals; the analog quantity interface board is provided with a plurality of paths of electromagnetic transformers, and can convert externally-accessed large signals into electric signals of 0-10V and then respectively connect the electric signals to the two processing boards through the bus back board;
digital quantity interface board: the system comprises a plurality of optical ports which can be connected with electronic mutual inductors to output messages and a plurality of optical ports which are used for receiving messages output by an opposite side device; the digital quantity interface board is connected with a digital quantity signal (IEC60044-8 message) output by the multi-path electronic transformer and a digital quantity signal (IEC61850-9-2 message) output by the multi-path opposite side similar device; after each path of input optical signal is converted into an electric signal, the electric signal is respectively connected to the two processing boards through the bus back board;
opening a plate: and the remote signaling channels are provided and are accessed with multi-way switching value signals through cables. The opening board sends the acquired semaphore to the management board through the bus backplane;
a management board: in the bridge with information interaction of each board, switching value information transmitted by the opening board is transmitted to the two processing boards through the bus backboard, control orders transmitted by the two processing boards through the bus backboard are received at the same time, and after logical judgment is carried out on the control orders, the master control orders are sent to the opening board to control the opening and closing of the corresponding outlet channel.
Treating the plate: two processing boards with the same function and independent operation. Each processing board comprises a plurality of optical ports for receiving and transmitting GOOSE messages and IEC 61850-9-2;
the processing board obtains the electric signal of the analog quantity interface board through the bus back board, and obtains corresponding sampling data after the conversion of the ADC sampling module on the board; the processing board obtains the electric signals of the digital quantity interface board through the bus backboard, and corresponding sampling data is obtained after the electric signals are decoded by the IEC60044-8 decoding module and the IEC61850-9-2 decoding module. Then, after synchronous processing is carried out on the sampling data in a resampling mode, the sampling data is packaged by an IEC61850-9-2 coding module and then is sent to back-end equipment through an optical port;
the processing board packages the switching value signals sent by the management board through a GOOSE coding module and sends the switching value signals to the back-end equipment through an optical port; meanwhile, the GOOSE message transmitted by the back-end equipment is received through the optical port, decoded by the GOOSE decoding module to obtain a control order, and the control order is sent to the management board through the bus back board.
Opening a plate: there are a plurality of outlet channels connected by cables to control the primary equipment. 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 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 both carry out independent collection and processing to external input's analog quantity, digital quantity, switching value, and arbitrary processing board is unusual can not influence another processing board, also can not lead to whole device unusual, adopts this symmetrical framework mode, can reduce the trouble influence scope by half, improves the reliability.
2) For a 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 and no program code. The pure hardware circuit has extremely low failure rate, and the design reduces the probability of abnormal sampling value access of the two processing boards at the same time.
3) For a sample value receiving function. The analog access port and the digital access port are distributed on different interface boards. The single interface board is abnormal, only the corresponding access function is influenced, and the influence range of the abnormality is reduced.
4) For a sample value receiving function. The two processing plates operate independently and process sampling values respectively. And each processing board is provided with an ADC (analog-to-digital converter) sampling module, an IEC60044-8 decoding module and an IEC61850-9-2 decoding module. The modules are independent from each other, so that the problem of abnormal expansion caused by mutual coupling of the modules is solved.
5) For a sample value sending function. The two processing boards operate independently, and each processing board respectively carries out synchronous processing on received sampling data (analog data, IEC60044-8 message data and IEC61850-9-2 message data) of various types, then the sampling data are packaged into IEC61850-9-2 messages and sent to the back-end equipment through the optical port of the processing board.
6) For the GOOSE receiving function, the two processing boards operate independently, each processing board is provided with a GOOSE decoding module, and the GOOSE message received by the processing board is decoded to obtain a control order and is transmitted to the management board.
7) For the GOOSE sending function, the two processing boards operate independently, each processing board is provided with a GOOSE coding module, switching value signals transmitted by the management board are packaged into GOOSE messages, and the GOOSE messages are sent to the back-end equipment through the optical port of the processing board.
8) The switching board collects external switching value signals and transmits the switching value signals to the management board through the bus backboard.
9) The opening plate receives a control command sent by the management plate and controls the opening and closing of the outlet channel according to the control command.
10) The management board receives control commands issued by the two processing boards, and the control commands from the two processing boards for controlling the same outlet channel are combined to generate a master control command (the control command is 1, which indicates that the corresponding outlet channel is closed; the control command is 0, which indicates that the corresponding outlet channel is disconnected), and then the master control command is transmitted to the output board through the bus backplane. Meanwhile, the management board transmits the switching value signals transmitted by the switching-in board to the two processing boards through the bus backplane.
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 clears the control commands of the corresponding processing boards to be zero before generating the master control command. The problem that after the outlet channel of the opening plate is closed by a control command on one processing plate, communication is interrupted and the outlet channel cannot be controlled by the control command of the other processing plate is solved.
In the invention, when any processing board is abnormal, only the back-end equipment accessed to the processing board is influenced, but the back-end equipment accessed to other processing boards is not influenced, thereby reducing the fault influence range, and avoiding 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), and the outlet channel of the board cannot be controlled to be opened through the equipment, thereby further causing the function loss of the whole system.
Example two:
a data collection outlet control method, executed by a plurality of independently operating processing boards in the first embodiment, comprising:
acquiring electrical signals and switching value information;
after the sampling data is obtained by carrying out conversion and decoding on the basis of the electric signals, the sampling data is packaged and transmitted to the back-end equipment;
packaging the switching value information and then sending the switching value information to back-end equipment;
and receiving the GOOSE message transmitted by the back-end equipment, decoding the GOOSE message to obtain a control order, and transmitting the control order to a management board, wherein the management board performs on-off control on an outlet channel of the opening board based on the control order.
Example three:
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 in accordance with the instructions to perform the steps of the method of:
acquiring electrical signals and switching value information;
after the sampling data is obtained by carrying out conversion and decoding on the basis of the electric signals, the sampling data is packaged and transmitted to the back-end equipment;
packaging the switching value information and then sending the switching value information to back-end equipment;
and receiving the GOOSE message transmitted by the back-end equipment, decoding the GOOSE message to obtain a control order, and transmitting the control order to a management board, wherein the management board performs on-off control on an outlet channel of the opening board based on the control order.
Example four:
an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the following method steps:
acquiring electrical signals and switching value information;
after the sampling data is obtained by carrying out conversion and decoding on the basis of the electric signals, the sampling data is packaged and transmitted to the back-end equipment;
packaging the switching value information and then sending the switching value information to back-end equipment;
and receiving the GOOSE message transmitted by the back-end equipment, decoding the GOOSE message to obtain a control order, and transmitting the control order to a management board, wherein the management board performs on-off control on an outlet channel of the opening board based on the control order.
As will be appreciated by one skilled in the art, 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 flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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: although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that various changes, modifications and equivalents can be made in the embodiments of the invention without departing from the scope of the invention as defined by the appended claims.
Claims (10)
1. A data acquisition export control apparatus, comprising: the system comprises an interface board, an opening board, a plurality of processing boards and a management board which run independently;
the interface board is connected with the processing board through the bus back board, and the interface board converts the signals into electric signals after collecting the signals and transmits the electric signals to the processing board;
the switching board is connected with the management board through the bus back board, and external switching value signals are collected and then transmitted to the management board;
the management board is connected with the processing board and the opening board through the bus back board, receives switching value information transmitted by the opening board and transmits the switching value information to the processing board; every handle the board and all connect the rear end equipment through the light mouth, handle the board: after the sampling data is obtained by carrying out conversion and decoding on the basis of the electric signals, the sampling data is packaged and transmitted to the back-end equipment; packaging the switching value information and then sending the switching value information to back-end equipment; receiving a GOOSE message transmitted by the back-end equipment, decoding the GOOSE message to obtain a control order, and transmitting the control order to a management board;
the management board is connected with the processing board and the output board through the bus back board, receives the control command transmitted by the processing board, performs logic judgment based on the control command, obtains a master control command and transmits the master control command to the output board;
the outlet plate is provided with a plurality of outlet channels, and the on-off of the corresponding outlet channels is controlled based on a master control command.
2. The data acquisition export control device of claim 1 wherein the access panel has a plurality of remote signaling channels and the access panel is cabled to multiple switching signals.
3. The data collection egress 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 for transmitting and receiving GOOSE messages and IEC 61850-9-2.
4. A data acquisition outlet control device according to claim 1, wherein said 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 back board, and converts alternating current analog signals into first electric signals and transmits the first electric signals to the processing board after the alternating current analog signals are collected by the analog quantity interface board;
and the digital quantity interface board is connected with the processing board through the bus back board, and the digital quantity interface board converts the optical signals into second electric signals and transmits the second electric signals to the processing board after acquiring the optical signals.
5. A data acquisition outlet control device according to claim 4, wherein said 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 back-end equipment through an optical port.
6. The data acquisition outlet control device as claimed in claim 4, wherein the analog quantity interface board comprises a plurality of ports capable of accessing alternating current analog signals, and the analog quantity interface board is provided with a multi-path electromagnetic mutual inductor for converting large signals accessed from the outside into electric signals of 0-10V;
the digital quantity interface board comprises a plurality of optical ports which can be connected with the output messages of the electronic mutual inductor and a plurality of optical ports which are used for receiving the output messages of the opposite side device.
7. The data acquisition outlet control device according to claim 4, wherein the processing board converts the first electrical signal through the ADC sampling module on the board to obtain corresponding first sampling data, and decodes the second electrical signal through the IEC60044-8 decoding module and the IEC61850-9-2 decoding module to obtain corresponding second sampling data; and the processing board synchronously processes the first and second sampling data in a resampling mode, packages the first and second sampling data by an IEC61850-9-2 coding module, and sends the first and second sampling data to the back-end equipment through an optical port.
8. The data acquisition outlet control device according to claim 1, wherein the processing board packages the switching value signal through a GOOSE coding module and transmits the packaged switching value signal to the back-end device through an optical port, and the processing board receives a GOOSE message transmitted from the back-end device through the optical port, decodes the GOOSE message through a GOOSE decoding module to obtain the control command, and transmits the control command to the management board through the bus backplane.
9. The data acquisition outlet control device according to claim 1, wherein the management board monitors the on-off status of the control command communication 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 master 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 electrical signals and switching value information;
after the sampling data is obtained by carrying out conversion and decoding on the basis of the electric signals, the sampling data is packaged and transmitted to the back-end equipment;
packaging the switching value information and then sending the switching value information to back-end equipment;
and receiving the GOOSE message transmitted by the back-end equipment, decoding the GOOSE message to obtain a control order, and transmitting the control order to a management board, wherein the management board performs on-off control on an outlet channel of the opening board based on the control order.
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