CN110889226A - Method for automatically identifying electric power automation terminal based on information modeling - Google Patents
Method for automatically identifying electric power automation terminal based on information modeling Download PDFInfo
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- CN110889226A CN110889226A CN201911189572.8A CN201911189572A CN110889226A CN 110889226 A CN110889226 A CN 110889226A CN 201911189572 A CN201911189572 A CN 201911189572A CN 110889226 A CN110889226 A CN 110889226A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
- G06N3/00—Computing arrangements based on biological models
- G06N3/02—Neural networks
- G06N3/04—Architecture, e.g. interconnection topology
- G06N3/045—Combinations of networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
Abstract
The application discloses an automatic identification method for an electric power automation terminal based on information modeling, which comprises the following steps: performing information modeling on the device key information of the power automation terminal to be installed to obtain a model base; matching the installation equipment information, the actual installation position information, the topology information and the characteristic message of the newly accessed electric power automation terminal with the information in the model base; when the matching is successful, the newly accessed electric power automation terminal is respectively of a nameplate legal type, a position legal type, a topology information legal type and a message legal type; when the newly-accessed electric power automation terminal simultaneously meets the requirements of nameplate legality, position legality, topological information legality and message legality, the terminal management and control center registers the newly-accessed electric power automation terminal, and automatic identification of the newly-accessed electric power automation terminal is completed. The problem that a communication request cannot be established between terminals and interaction cannot be performed between the terminals due to the fact that an existing power grid terminal management and control center is difficult to automatically identify a newly-accessed electric power automation terminal is solved.
Description
Technical Field
The application relates to a method for identifying an electric power automation terminal, in particular to a method for automatically identifying an electric power automation terminal based on information modeling.
Background
In order to realize a highly information, automatic and intelligent power grid, a large number of novel power automation terminals need to be added on the basis of the existing main network automation equipment and the information management and control system.
Due to the access mode, the working characteristics and the like of the novel power automation terminal, the access and the update are extremely frequent. In addition, a large number of electric power automation terminals with various types have inconsistent functions and data interfaces, and the existing power grid terminal management and control center is difficult to automatically identify the newly-accessed electric power automation terminal. The terminals cannot know whether the other terminal is online or legal, a communication request cannot be established, and interaction cannot be performed between the terminals (communication between the terminals, autonomous control between the terminals, and information exchange between the terminals).
Therefore, how to provide a method for automatically identifying a power automation terminal becomes a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The application provides an automatic identification method for an electric power automation terminal based on information modeling, and aims to solve the problems that an existing power grid terminal management and control center is difficult to automatically identify a newly-accessed electric power automation terminal, so that communication requests cannot be established between the terminals, and interaction cannot be performed between the terminals.
The application provides an automatic identification method of an electric power automation terminal based on information modeling, which comprises the following steps:
performing information modeling on the key information of the equipment of the electric power automation terminal to be installed by adopting a UML2.0 standard to obtain a model base;
storing the model library in a terminal management and control center;
installing the newly-accessed electric power automation terminal;
connecting the newly-accessed electric power automation terminal with a corresponding terminal control unit;
photographing the nameplate of the newly-accessed power automation terminal through the handheld mobile terminal to obtain an installation equipment nameplate photo;
the handheld mobile terminal sends the installation equipment nameplate photo to the terminal management and control center through a wired or wireless network;
extracting equipment information from the installation equipment nameplate photo through a picture processing unit of the terminal control center to obtain installation equipment information;
matching the installation equipment information with the information in the model library according to the model library;
when the information of the installation equipment is successfully matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the information of the installation equipment is legal and forms a legal record of a nameplate in the terminal control center;
acquiring actual installation position information of the newly-accessed electric power automation terminal through a GPS (global positioning system) positioning device of a terminal control unit;
the terminal control unit sends the actual installation position information to the terminal control center through a wired or wireless network;
matching the actual installation position information with information in the model base according to the model base;
when the actual installation position information is successfully matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the actual installation position information is in a position legal state, and a position legal record is formed in the terminal control center;
the terminal management and control unit sends the device topology information of the newly accessed electric power automation terminal to the terminal management and control center through a wired or wireless network;
matching the equipment topology information with the information in the model base according to the model base;
when the device topology information is successfully matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the device topology information is legal, and a record of legal topology information is formed in the terminal control center;
the terminal control unit sends the feature message of the newly-accessed electric power automation terminal to the terminal control center through a wired or wireless network;
matching the feature message with information in the model library according to the model library;
when the feature message is successfully matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the feature message is legal, and a message legal record is formed in the terminal control center;
and when the newly-accessed electric power automation terminal simultaneously meets the requirements of nameplate legality, position legality, topological information legality and message legality, the terminal management and control center registers the newly-accessed electric power automation terminal to complete automatic identification of the newly-accessed electric power automation terminal.
Optionally, when the information of the installation equipment fails to be matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the information of the installation equipment is illegal, and a terminal management and control center displays nameplate alarm information through a nameplate alarm device;
and when the actual installation position information fails to be matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the actual installation position information is illegal in position, and the terminal control center displays position alarm information through a position alarm device.
Optionally, when the matching between the device topology information and the information in the model base fails, the newly-accessed power automation terminal corresponding to the device topology information is illegal, and the terminal management and control center displays topology alarm information through a topology alarm device;
and when the matching of the characteristic message and the information in the model base fails, the newly-accessed electric power automation terminal corresponding to the characteristic message is illegal, and the terminal control center displays message alarm information through a message alarm device.
Optionally, when the newly-accessed electric power automation terminal simultaneously satisfies the conditions of a legal nameplate, a legal position, a legal topological information and a legal message, the terminal management and control center registers the newly-accessed electric power automation terminal to complete automatic identification of the newly-accessed electric power automation terminal, including:
retrieving legal records in the terminal control center through a retrieval unit in the terminal control center, wherein when records of nameplate legality, position legality, topology information legality and message legality corresponding to the newly-accessed electric power automation terminal exist in the terminal control center at the same time, the newly-accessed electric power automation terminal simultaneously meets the requirements of nameplate legality, position legality, topology information legality and message legality;
when the newly-accessed electric power automation terminal simultaneously meets the requirements of nameplate legality, position legality, topological information legality and message legality, the terminal management and control center registers the newly-accessed electric power automation terminal to obtain an equipment number;
when the newly-accessed electric power automation terminal simultaneously meets the requirements of nameplate legality, position legality, topological information legality and message legality, the terminal management and control center records the equipment state of the newly-accessed electric power terminal as online;
through a wired or wireless network, the terminal management and control center sends an equipment online notification and the equipment number to the terminal management and control unit to notify the terminal management and control unit that the newly-accessed electric power automation terminal is in an online state;
and according to the equipment number received by the terminal control unit, the terminal control unit records the equipment number to complete the automatic identification of the newly-accessed electric power automation terminal.
Optionally, matching the installation device information with information in the model library according to the model library includes:
searching all the installation equipment information in the model base according to the model base;
when all the installation equipment information can be found in the information in the model base, the installation equipment information is successfully matched with the information in the model base;
when all the installation equipment information cannot be found in the information in the model base, the installation equipment information fails to be matched with the information in the model base;
the matching of the actual installation position information with the information in the model library according to the model library comprises the following steps:
searching the actual installation position information in the model base according to the model base;
when the actual installation position information can be found in the information in the model base, the actual installation position information is successfully matched with the information in the model base;
and when the actual installation position information cannot be found in the information in the model base, the actual installation position information fails to be matched with the information in the model base.
Optionally, matching the device topology information with information in the model library according to the model library includes:
searching the equipment topology information in the model base according to the model base;
when the equipment topology information can be found in the information in the model base, the equipment topology information is successfully matched with the information in the model base;
when the device topology information cannot be found in the information in the model base, the device topology information fails to be matched with the information in the model base;
the matching of the feature message with the information in the model library according to the model library comprises the following steps:
searching the characteristic message in the information in the model library according to the model library;
when the feature message can be found in the information in the model base, the feature message is successfully matched with the information in the model base;
and when the characteristic message cannot be found in the information in the model base, the matching between the characteristic message and the information in the model base fails.
Optionally, the sending, by the terminal management and control unit, the feature packet of the newly-accessed power automation terminal to the terminal management and control center through a wired or wireless network includes:
through a wired or wireless network and based on an MODBUS protocol, the terminal control unit sends the feature message of the newly-accessed electric power automation terminal to the terminal control center.
Optionally, the sending, by the terminal management and control unit, the feature packet of the newly-accessed power automation terminal to the terminal management and control center through a wired or wireless network includes:
and the terminal control unit sends the feature message of the newly-accessed electric power automation terminal to the terminal control center through a wired or wireless network based on an IEC101 protocol.
Optionally, the key information of the device includes a device model, a device shape, a manufacturer, a device name, a commissioning date, a maintenance frequency, an asset number, preset installation position information, preset topology information, and a function code of the power automation terminal to be installed;
the installation equipment information comprises the equipment model, the equipment shape, the manufacturer, the equipment name, the asset number and the function code of the newly-accessed electric power automation terminal;
the feature message includes a device address and a function code.
Optionally, the performing information modeling on the device key information of the power automation terminal to be installed by using the UML2.0 standard to obtain a model base includes:
shooting a nameplate of the electric power automation terminal to be installed by using a shooting device to obtain a nameplate photo of the equipment to be installed;
extracting equipment information from the nameplate photo of the equipment to be installed through a picture processing device to obtain key information of the equipment;
numbering the key information of the equipment to obtain numbering information;
making the number information into a label;
and carrying out deep learning and training modeling on the label by adopting a UML2.0 standard to obtain a model base.
According to the technical scheme, the method for automatically identifying the electric power automation terminal based on the information modeling comprises the following steps: performing information modeling on the key information of the equipment of the electric power automation terminal to be installed by adopting a UML2.0 standard to obtain a model base; storing the model library in a terminal management and control center; installing the newly-accessed electric power automation terminal; connecting the newly-accessed electric power automation terminal with a corresponding terminal control unit; photographing the nameplate of the newly-accessed power automation terminal through the handheld mobile terminal to obtain an installation equipment nameplate photo; the handheld mobile terminal sends the installation equipment nameplate photo to the terminal management and control center through a wired or wireless network; extracting equipment information from the installation equipment nameplate photo through a picture processing unit of the terminal control center to obtain installation equipment information; matching the installation equipment information with the information in the model library according to the model library; when the information of the installation equipment is successfully matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the information of the installation equipment is legal and forms a legal record of a nameplate in the terminal control center; acquiring actual installation position information of the newly-accessed electric power automation terminal through a GPS (global positioning system) positioning device of a terminal control unit; the terminal control unit sends the actual installation position information to the terminal control center through a wired or wireless network; matching the actual installation position information with information in the model base according to the model base; when the actual installation position information is successfully matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the actual installation position information is in a position legal state, and a position legal record is formed in the terminal control center; the terminal management and control unit sends the device topology information of the newly accessed electric power automation terminal to the terminal management and control center through a wired or wireless network; matching the equipment topology information with the information in the model base according to the model base; when the device topology information is successfully matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the device topology information is legal, and a record of legal topology information is formed in the terminal control center; the terminal control unit sends the feature message of the newly-accessed electric power automation terminal to the terminal control center through a wired or wireless network; matching the feature message with information in the model library according to the model library; when the feature message is successfully matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the feature message is legal, and a message legal record is formed in the terminal control center; and when the newly-accessed electric power automation terminal simultaneously meets the requirements of nameplate legality, position legality, topological information legality and message legality, the terminal management and control center registers the newly-accessed electric power automation terminal to complete automatic identification of the newly-accessed electric power automation terminal. According to the method for automatically identifying the electric power automation terminal based on the information modeling, the terminal control center can automatically identify the newly-accessed electric power automation terminal and enable the newly-accessed electric power automation terminal to be in an online state. The power automation terminals can establish communication requests and interact with each other.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
FIG. 1 is a block diagram of an automatic identification system for an electric power automation terminal based on information modeling;
FIG. 2 is a flowchart of a method for automatic identification of an electric power automation terminal based on information modeling provided by the present application;
fig. 3 is a detailed flowchart of step S1;
fig. 4 is a detailed flowchart of step S53;
fig. 5 is a detailed flowchart of step S62;
fig. 6 is a detailed flowchart of step S71;
FIG. 7 is a master-slave response cycle chart of MODBUS protocol;
FIG. 8 is a diagram illustrating a byte format of a MODBUS RTU protocol;
fig. 9 is a detailed flowchart of step S81;
fig. 10 is a detailed flowchart of step S9.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In order to realize a highly information, automatic and intelligent power grid, a large number of novel power automation terminals need to be added on the basis of the existing main network automation equipment and the information management and control system.
Due to the access mode, the working characteristics and the like of the novel power automation terminal, the access and the update are extremely frequent. In addition, a large number of electric power automation terminals with various types have inconsistent functions and data interfaces, and the existing power grid terminal management and control center is difficult to automatically identify the newly-accessed electric power automation terminal. The terminals cannot know whether the other terminal is online or legal, a communication request cannot be established, and interaction cannot be performed between the terminals (communication between the terminals, autonomous control between the terminals, and information exchange between the terminals).
In view of this, the present application provides a method for automatically identifying an electric power automation terminal based on information modeling.
Fig. 1 is a structural diagram of an automatic identification system for an electric power automation terminal based on information modeling, and as shown in fig. 1, an automatic identification system 00 for an electric power automation terminal based on information modeling includes a terminal management and control center 1, a handheld mobile terminal 2, a newly accessed electric power automation terminal 3, a wired or wireless network 4, and a terminal management and control unit 5. The handheld mobile terminal 2 and the terminal control unit 5 may send data or signals to the terminal control center 1 through the wired or wireless network 4, and the handheld mobile terminal 2 and the terminal control unit 5 may also receive the data or signals sent by the terminal control center 1 through the wired or wireless network 4. The terminal management and control center 1 can maintain and manage basic information of the power automation terminal equipment, support a terminal automatic discovery mechanism, construct information models of corresponding communication modes for different application scenes, and realize functions to be completed in different scenes. The terminal management and control center 1 further includes a picture processing unit (not shown in fig. 1) for analyzing and processing the picture and extracting data information in the picture. The terminal management and control center 1 may further include a nameplate alarm device, a position alarm device, a topology alarm device, a message alarm device, and a retrieval unit (not shown in fig. 1). The nameplate alarm device, the position alarm device, the topology alarm device and the message alarm device are used for displaying alarm information. The retrieval unit is used for retrieving legal records in the terminal management and control center. The terminal management and control unit further comprises a GPS positioning device, and the GPS positioning device is used for acquiring actual installation position information of the newly-accessed electric power automation terminal.
The wired or wireless network 4 may be a wireless public network or a private power network. The present application is not particularly limited.
It should be noted that the structure diagram of the power automation terminal automatic identification system 00 based on information modeling shown in fig. 1 is only schematic, and the system may further include other modules, units, or devices, and the system may also include other installed power automation terminal devices, which is not described herein again, and the present application is not limited specifically.
The handheld mobile terminal 2 is a mobile display device with a photographing function, and may be a mobile phone capable of photographing, a tablet computer capable of photographing, and the like, and the application is not limited in particular.
Fig. 2 is a flowchart of a method for automatically identifying an electric power automation terminal based on information modeling, and as shown in fig. 2, the method for automatically identifying an electric power automation terminal based on information modeling includes:
s1: performing information modeling on the key information of the equipment of the electric power automation terminal to be installed by adopting a UML2.0 standard to obtain a model base;
optionally, fig. 3 is a detailed flowchart of step S1, and as shown in fig. 3, S1 performs information modeling on the device key information of the power automation terminal to be installed by using the UML2.0 standard, to obtain a model library, where the model library includes:
s11: shooting a nameplate of the electric power automation terminal to be installed by using a shooting device to obtain a nameplate photo of the equipment to be installed;
s12: extracting equipment information of the equipment nameplate photo to be installed through the picture processing device to obtain key information of the equipment;
s13: numbering the key information of the equipment to obtain numbering information;
s14: making the number information into a label;
s15: and carrying out deep learning and training modeling on the label by adopting a UML2.0 standard to obtain a model base.
It should be noted that, as shown in fig. 1 and fig. 3, the photographing device and the picture processing device used in step S1 may be devices independent of the automatic power terminal identification system 00 based on information modeling, or may be devices mounted in the automatic power terminal identification system based on information modeling, and the present application is not limited in particular.
Optionally, the key information of the device includes a device model, a device shape, a manufacturer, a device name, a commissioning date, a maintenance frequency, an asset number, preset installation position information, preset topology information, and a function code of the power automation terminal to be installed.
It should be noted that the power automation terminal to be installed may be a power automation terminal device that has been purchased for use or a power automation terminal device stored in a power device warehouse, and the present application is not particularly limited. Every electric power automation terminal equipment who purchases back in order to use all has an equipment data plate, can record electric power automation terminal equipment's relevant information on the equipment data plate, can include equipment model, equipment shape, manufacturer, equipment name, asset number and function code etc. on the equipment data plate, also can still include other equipment information, does not do not specifically limit this application yet.
With continued reference to fig. 2, S2: storing the model library in a terminal control center;
it should be noted that, a database storage unit may be arranged in the terminal management and control center, and is used for storing a model library and other software, programs, or information records, and the like, and the present application is not particularly limited; the established model library is stored in the terminal management and control center, and the model library may be transferred to a database storage unit of the terminal management and control center through a mobile storage device (such as a storage card), or may be sent to the terminal management and control center through a wired or wireless network, which is not specifically limited in this application.
S3: installing the newly-accessed electric power automation terminal;
s4: connecting the newly accessed electric power automation terminal with a corresponding terminal control unit;
after the new-access electric power automation terminal is fixedly installed, the new-access electric power automation terminal needs to be connected with a corresponding terminal control unit, and the terminal control unit can perform relevant management and recording on some data, states or executed instructions of the new-access electric power automation terminal, and details are not repeated here.
S5: photographing a nameplate newly connected to the power automation terminal through the handheld mobile terminal to obtain a nameplate photo of the installation equipment;
s51: sending a picture of an installation equipment nameplate to a terminal control center by a handheld mobile terminal through a wired or wireless network;
s52: extracting equipment information from the installation equipment nameplate photo through a picture processing unit of a terminal control center to obtain installation equipment information;
optionally, the installation device information includes a device model, a device shape, a manufacturer, a device name, an asset number, and a function code of the newly accessed power automation terminal;
s53: matching the installation equipment information with the information in the model library according to the model library;
optionally, fig. 4 is a detailed flowchart of step S53, and as shown in fig. 4, S53 matches the installation equipment information with information in the model library according to the model library, including:
s531: searching all installation equipment information in the model base according to the model base;
s532: when all the installation equipment information can be found in the information in the model base, the installation equipment information is successfully matched with the information in the model base;
s533: when all the installation equipment information cannot be found in the information in the model base, the matching between the installation equipment information and the information in the model base fails;
s54: when the information of the installation equipment is successfully matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the information of the installation equipment is legal and forms a legal record of a nameplate in the terminal control center;
alternatively, as shown in fig. 2, S55: when the information of the installation equipment fails to be matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the information of the installation equipment is illegal, and a terminal control center displays nameplate alarm information through a nameplate alarm device;
with continued reference to fig. 2, S6: acquiring actual installation position information of a newly-accessed electric power automation terminal through a GPS (global positioning system) positioning device of a terminal control unit;
s61: the terminal control unit sends actual installation position information to a terminal control center through a wired or wireless network;
s62: matching the actual installation position information with the information in the model library according to the model library;
optionally, fig. 5 is a detailed flowchart of step S62, and as shown in fig. 5, S62 matches the actual installation position information with information in the model library according to the model library, including:
s621: searching actual installation position information in the model base according to the model base;
here, the actual installation location information of the newly accessed power automation terminal corresponds to the preset installation location information in the model library for distinction, and different names using "preset" and "actual" as the final phrases are adopted.
S622: when the actual installation position information can be found in the information in the model base, the actual installation position information is successfully matched with the information in the model base;
s623: when the actual installation position information cannot be found in the information in the model base, the actual installation position information fails to be matched with the information in the model base.
S63: when the actual installation position information is successfully matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the actual installation position information is in a position legal state, and a position legal record is formed in the terminal control center;
alternatively, as shown in fig. 2, S64: when the matching of the actual installation position information and the information in the model base fails, the newly-accessed electric power automation terminal corresponding to the actual installation position information is illegal in position, and the terminal control center displays position alarm information through the position alarm device.
S7: the terminal management and control unit sends equipment topology information of a newly accessed electric power automation terminal to the terminal management and control center through a wired or wireless network;
s71: matching the equipment topology information with the information in the model base according to the model base;
optionally, fig. 6 is a detailed flowchart of step S71, as shown in fig. 6, S71, matching the device topology information with information in the model library according to the model library, including:
s711: according to the model base, searching equipment topology information in the model base;
it should be noted that, here, the topology information of the newly accessed power automation terminal corresponds to the preset topology information in the model base to show the distinction, and a different name using "preset" as a fixed language is adopted.
S712: when the equipment topology information can be found in the information in the model base, the equipment topology information is successfully matched with the information in the model base;
s713: when the equipment topology information cannot be found in the information in the model base, the equipment topology information fails to be matched with the information in the model base;
s72: when the equipment topology information is successfully matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the equipment topology information is legal, and a record that the topology information is legal is formed in the terminal control center;
alternatively, as shown in fig. 2, S73: when the matching of the topology information of the equipment and the information in the model base fails, the newly accessed electric power automation terminal corresponding to the topology information of the equipment is illegal, and the terminal management and control center displays topology alarm information through a topology alarm device;
s8: through a wired or wireless network, the terminal control unit sends a feature message of a newly-accessed electric power automation terminal to the terminal control center;
optionally, in S8, through a wired or wireless network, the terminal management and control unit sends a feature message of a newly-accessed power automation terminal to the terminal management and control center, where the feature message includes:
through a wired or wireless network and based on an MODBUS protocol, the terminal control unit sends a feature message of a newly-accessed electric power automation terminal to the terminal control center.
Optionally, the feature packet includes a device address and a function code. The equipment address in the characteristic message is actual installation position information of a newly-accessed electric power automation terminal, the actual installation position information is matched with information in the model base, and the equipment address corresponds to preset installation position information.
The characteristic message based on MODBUS protocol can be used for protocol data transmission in binary and ASCII modes, MODBUS RTU directly transmits data in a binary data mode, and MODBUS TCP converts each byte of binary data into a fixed two-bit hexadecimal character string and then sequentially connects the two-bit hexadecimal character string in series to transmit data in an ASCII code mode. MODBUS TCP is transmitted over Ethernet, while MODBUS RTU is transmitted over asynchronous serial transmission (media such as wired RS-232-/422/485/; fiber, wireless, etc.).
The MODBUS RTU mode adopts 16-bit CRC check, and because the TCP protocol is a reliable connection-oriented protocol, the MODBUS TCP mode has no extra specified check. The method is characterized in that only two bytes of check codes of the MODBUS RTU protocol are removed, then 5 0 s and one 6 is added at the beginning of the MODBUS RTU protocol and the modified MODBUS RTU protocol is sent out through a TCP/IP network protocol. So only MODBUS RTU protocol is briefly introduced here.
Fig. 7 is a master-slave response cycle chart of the MODBUS protocol, and as shown in fig. 7, the master inquiry information Z includes the device address, the function code, and 8 is the data byte and the error check, and the slave response information C includes the device address, the function code, and 8 is the data byte and the error check.
It should be noted that, in the present application, when sending the feature packet, based on the MODBUS protocol, the terminal management and control center is the master, and the terminal management and control unit is the slave. The device address in the feature message is the message form of the actual installation location information, so the device address represents the actual installation location information.
Fig. 8 is a schematic diagram of a byte format of the MODBUS RTU protocol, as shown in fig. 8, each byte contains 8-bit binary code, and 11 bits in total are added with a start bit (0), a check bit and a stop bit (1) during transmission. D0 is the least significant bit of the byte and D7 is the most significant bit of the byte. The low order is transmitted first and then the high order is transmitted.
The MODBUS RTU protocol data frame format is shown in table 1, where table 1 is the MODBUS RTU protocol data frame format:
| data format | Address code | Function code | Data area | |
| Data length | ||||
| 1 |
1 byte | N byte | 16-bit CRC code |
TABLE 1
Address code: the address code corresponds to the device address and is the first byte (8 bits) of the information frame, from 0 to 255. This byte indicates that the slave whose address is set by the user will receive the information transmitted from the master. Each slave must have a unique address code and only slaves that match the address code can respond back. When a slave sends back a message, it is equivalent to the address code indicating where the message came from.
Function code: the function code corresponds to the function code, and the function code sent by the host machine tells the slave machine what task to execute.
A data area: the data area contains what actions need to be performed by the slave or foldback information gathered by the slave. Such information may be numerical values, reference addresses, etc. For example, the function code tells the slave to read the value of the register, then the data area must contain the start address and read length of the register to be read. The address and data information are not the same for different slaves.
Error checking code: the host or the slave can use the check code to judge whether the received information is wrong. Sometimes, due to electronic noise or other interference, information can slightly change in the transmission process, and the error check code ensures that the master or the slave does not work for the information which is in error in the transmission process. This increases the safety and efficiency of the system. The error check adopts a CRC check method.
The electric power automation terminal based on the MODBUS protocol is used for identification, and only a register reading command and a key address of a corresponding brand are recorded in a terminal control center and are issued to a terminal control unit for polling. Once the protocols are consistent, the power automation terminal has a slave response message, and the corresponding terminal can be identified by the device model, the asset number, the device name and the like.
Optionally, in S8, through a wired or wireless network, the terminal management and control unit sends a feature message of a newly-accessed power automation terminal to the terminal management and control center, where the feature message includes:
through a wired or wireless network and based on an IEC101 protocol, a terminal control unit sends a feature message of a newly-accessed electric power automation terminal to a terminal control center.
The 101 protocol was performed in a basic frame format as shown in tables 2 and 3, with table 2 being a fixed frame format and table 3 being a variable frame format.
| Start character (10H) |
| Control area (C) |
| Link Address domain (A) |
| Frame Check Sum (CS) |
| Ending character (16H) |
TABLE 2
| Start character (68H) |
| Length (L) |
| Length repeat (L) |
| Start character (68H) |
| Control area (C) |
| Link Address domain (A) |
| Link user data (variable length) |
| Frame Check Sum (CS) |
| Ending character (16H) |
TABLE 3
Different commands in the protocol may use different frame formats.
The control domain function codes are shown in table 4 and table 5, where table 4 is the substation function code sent by the master station, and table 5 is the master station function code sent by the slave station.
| Function code serial number | Description of |
| 0 | Resetting a |
| 1 | Resetting user processes |
| 3 | General calling (remote measuring, remote signaling, electric degree, clock, remote control) |
| 9 | Interrogating link state |
| 10 | Interrogating primary data |
| 11 | Interrogating secondary data |
TABLE 4
| Function code serial number | Description of |
| 0 | |
| 1 | Substation response error (e.g. link busy) |
| 8 | Total summoning response (remote measuring, remote signalling, telegraph, clock, remote control, SOE, etc.) |
| 9 | Total call answer error |
| 11 | Link state integrity |
TABLE 5
It should be noted that, in the present application, a master station of the IEC101 specification refers to a terminal management and control center, and a slave station refers to a terminal management and control unit.
The electric power automation terminal identification based on the IEC101 protocol is similar to the electric power automation terminal identification method based on the MODBUS protocol, and the corresponding electric power automation terminal can be identified according to the reply message as long as the terminal control unit queries the key fields of the electric power automation terminal according to the fixed frame long format instruction issued by the terminal control center.
With continued reference to fig. 2, S81: matching the characteristic message with information in the model library according to the model library;
optionally, fig. 9 is a detailed flowchart of step S81, and as shown in fig. 9, S81 matches the feature packet with information in the model library according to the model library, including:
s811: searching the characteristic message in the information in the model library according to the model library;
s812: when the feature message can be found in the information in the model library, the feature message is successfully matched with the information in the model library;
s813: when the feature message cannot be found in the information in the model library, the matching between the feature message and the information in the model library fails.
As shown in fig. 2, S82: when the feature message is successfully matched with the information in the model library, the newly-accessed electric power automation terminal corresponding to the feature message is legal, and a message legal record is formed in the terminal control center;
alternatively, as shown in fig. 2, S83: and when the matching of the characteristic message and the information in the model base fails, the newly-accessed electric power automation terminal corresponding to the characteristic message is illegal, and the terminal control center displays message alarm information through a message alarm device.
As shown in fig. 2, S9: when the newly-accessed electric power automation terminal simultaneously meets the requirements of nameplate legality, position legality, topological information legality and message legality, the terminal management and control center registers the newly-accessed electric power automation terminal, and automatic identification of the newly-accessed electric power automation terminal is completed.
Optionally, fig. 10 is a detailed flowchart of step S9, as shown in fig. 10, S9, when the newly-accessed electric power automation terminal simultaneously satisfies that the nameplate is legal, the position is legal, the topology information is legal, and the message is legal, the terminal management and control center registers the newly-accessed electric power automation terminal, and completes the automatic identification of the newly-accessed electric power automation terminal, including:
s91: retrieving legal records in the terminal control center through a retrieval unit in the terminal control center, wherein when records of nameplate legality, position legality, topology information legality and message legality corresponding to the same newly-accessed electric power automation terminal exist in the terminal control center at the same time, the newly-accessed electric power automation terminal simultaneously meets the requirements of nameplate legality, position legality, topology information legality and message legality;
it is easy to understand that what the new access electric power automation terminal simultaneously satisfies that the nameplate is legal, the position is legal, the topology information is legal and the message is legal represents that the new access electric power automation terminal is legal, and the new access electric power automation terminal is illegal as long as any item is legal.
S92: when the newly-accessed electric power automation terminal simultaneously meets the requirements of nameplate legality, position legality, topological information legality and message legality, the terminal management and control center registers the newly-accessed electric power automation terminal to obtain an equipment number;
s93: when the newly-accessed electric power automation terminal simultaneously meets the requirements of nameplate legality, position legality, topological information legality and message legality, the terminal management and control center records the equipment state of the newly-accessed electric power terminal as online;
s94: through a wired or wireless network, the terminal control center sends a device on-line notification and a device number to the terminal control unit, and notifies the terminal control unit that a newly-accessed power automation terminal is in an on-line state;
s95: and according to the equipment number received by the terminal control unit, the terminal control unit records the equipment number to complete the automatic identification of the newly-accessed electric power automation terminal.
It should be noted that steps S5-S55, steps S6-S64, steps S7-S73 and steps S8-S83 are in parallel with each other. It should be noted that there is duplication of partial data information in the topology information, the actual installation location information, the installation device information, and the feature message, so that the validity of the newly connected power automation terminal can be confirmed many times.
The application provides a method for automatically identifying an electric power automation terminal based on information modeling, which comprises the following steps: performing information modeling on the device key information of the power automation terminal to be installed to obtain a model base; matching the installation equipment information, the actual installation position information, the topology information and the characteristic message of the newly accessed electric power automation terminal with the information in the model base; when the matching is successful, the newly accessed electric power automation terminal is respectively of a nameplate legal type, a position legal type, a topology information legal type and a message legal type; when the newly-accessed electric power automation terminal simultaneously meets the requirements of nameplate legality, position legality, topological information legality and message legality, the terminal management and control center registers the newly-accessed electric power automation terminal, and automatic identification of the newly-accessed electric power automation terminal is completed.
According to the method for automatically identifying the electric power automation terminal based on the information modeling, the information modeling is carried out on the key equipment information of the electric power automation terminal to be installed to obtain the model base, the model base is stored in the terminal management and control center, and the model base is used for automatically identifying the newly-accessed electric power automation terminal. The terminal type application of the electric power automation can be wider, and the problem of compatibility between different types of electric power automation terminal equipment and a terminal control center can be solved; the problem of information interaction between different types of electric power automation terminal equipment can be solved. And respectively verifying the legality of the nameplate, the legality of the position, the legality of the topological information and the legality of the feature message to ensure the legality of the newly-accessed electric power automation terminal allowed to be on-line by the terminal control center. After the terminal management and control center automatically identifies the newly-accessed electric power automation terminal, all the installed electric power automation terminals are legal and online, a communication request can be established at will, and communication, self-control, information exchange and the like between the terminals are carried out.
Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.
The same and similar parts in the various embodiments in this specification may be referred to each other. In particular, for the embodiments, since they are substantially similar to the method embodiments, the description is simple, and the relevant points can be referred to the description in the method embodiments.
Claims (10)
1. A method for automatically identifying an electric power automation terminal based on information modeling is characterized by comprising the following steps:
performing information modeling on the key information of the equipment of the electric power automation terminal to be installed by adopting a UML2.0 standard to obtain a model base;
storing the model library in a terminal management and control center;
installing the newly-accessed electric power automation terminal;
connecting the newly-accessed electric power automation terminal with a corresponding terminal control unit;
photographing the nameplate of the newly-accessed power automation terminal through the handheld mobile terminal to obtain an installation equipment nameplate photo;
the handheld mobile terminal sends the installation equipment nameplate photo to the terminal management and control center through a wired or wireless network;
extracting equipment information from the installation equipment nameplate photo through a picture processing unit of the terminal control center to obtain installation equipment information;
matching the installation equipment information with the information in the model library according to the model library;
when the information of the installation equipment is successfully matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the information of the installation equipment is legal and forms a legal record of a nameplate in the terminal control center;
acquiring actual installation position information of the newly-accessed electric power automation terminal through a GPS (global positioning system) positioning device of a terminal control unit;
the terminal control unit sends the actual installation position information to the terminal control center through a wired or wireless network;
matching the actual installation position information with information in the model base according to the model base;
when the actual installation position information is successfully matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the actual installation position information is in a position legal state, and a position legal record is formed in the terminal control center;
the terminal management and control unit sends the device topology information of the newly accessed electric power automation terminal to the terminal management and control center through a wired or wireless network;
matching the equipment topology information with the information in the model base according to the model base;
when the device topology information is successfully matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the device topology information is legal, and a record of legal topology information is formed in the terminal control center;
the terminal control unit sends the feature message of the newly-accessed electric power automation terminal to the terminal control center through a wired or wireless network;
matching the feature message with information in the model library according to the model library;
when the feature message is successfully matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the feature message is legal, and a message legal record is formed in the terminal control center;
and when the newly-accessed electric power automation terminal simultaneously meets the requirements of nameplate legality, position legality, topological information legality and message legality, the terminal management and control center registers the newly-accessed electric power automation terminal to complete automatic identification of the newly-accessed electric power automation terminal.
2. The method according to claim 1, wherein when the installation equipment information is unsuccessfully matched with the information in the model base, the newly-accessed power automation terminal corresponding to the installation equipment information is illegal, and a nameplate alarm device is used for displaying nameplate alarm information by the terminal management and control center;
and when the actual installation position information fails to be matched with the information in the model base, the newly-accessed electric power automation terminal corresponding to the actual installation position information is illegal in position, and the terminal control center displays position alarm information through a position alarm device.
3. The method according to claim 1, characterized in that when the matching of the device topology information and the information in the model base fails, the newly accessed power automation terminal corresponding to the device topology information is illegal, and the terminal management and control center displays topology alarm information through a topology alarm device;
and when the matching of the characteristic message and the information in the model base fails, the newly-accessed electric power automation terminal corresponding to the characteristic message is illegal, and the terminal control center displays message alarm information through a message alarm device.
4. The method according to claim 1, wherein when the newly accessed power automation terminal simultaneously satisfies the requirements of nameplate legitimacy, position legitimacy, topology information legitimacy and message legitimacy, the terminal management and control center registers the newly accessed power automation terminal to complete automatic identification of the newly accessed power automation terminal, and the method comprises the following steps:
retrieving legal records in the terminal control center through a retrieval unit in the terminal control center, wherein when records of nameplate legality, position legality, topology information legality and message legality corresponding to the newly-accessed electric power automation terminal exist in the terminal control center at the same time, the newly-accessed electric power automation terminal simultaneously meets the requirements of nameplate legality, position legality, topology information legality and message legality;
when the newly-accessed electric power automation terminal simultaneously meets the requirements of nameplate legality, position legality, topological information legality and message legality, the terminal management and control center registers the newly-accessed electric power automation terminal to obtain an equipment number;
when the newly-accessed electric power automation terminal simultaneously meets the requirements of nameplate legality, position legality, topological information legality and message legality, the terminal management and control center records the equipment state of the newly-accessed electric power terminal as online;
through a wired or wireless network, the terminal management and control center sends an equipment online notification and the equipment number to the terminal management and control unit to notify the terminal management and control unit that the newly-accessed electric power automation terminal is in an online state;
and according to the equipment number received by the terminal control unit, the terminal control unit records the equipment number to complete the automatic identification of the newly-accessed electric power automation terminal.
5. The method of claim 1, wherein matching the installed device information to information in a model library according to the model library comprises:
searching all the installation equipment information in the model base according to the model base;
when all the installation equipment information can be found in the information in the model base, the installation equipment information is successfully matched with the information in the model base;
when all the installation equipment information cannot be found in the information in the model base, the installation equipment information fails to be matched with the information in the model base;
the matching of the actual installation position information with the information in the model library according to the model library comprises the following steps:
searching the actual installation position information in the model base according to the model base;
when the actual installation position information can be found in the information in the model base, the actual installation position information is successfully matched with the information in the model base;
and when the actual installation position information cannot be found in the information in the model base, the actual installation position information fails to be matched with the information in the model base.
6. The method of claim 1, wherein matching device topology information to information in a model base according to the model base comprises:
searching the equipment topology information in the model base according to the model base;
when the equipment topology information can be found in the information in the model base, the equipment topology information is successfully matched with the information in the model base;
when the device topology information cannot be found in the information in the model base, the device topology information fails to be matched with the information in the model base;
the matching of the feature message with the information in the model library according to the model library comprises the following steps:
searching the characteristic message in the information in the model library according to the model library;
when the feature message can be found in the information in the model base, the feature message is successfully matched with the information in the model base;
and when the characteristic message cannot be found in the information in the model base, the matching between the characteristic message and the information in the model base fails.
7. The method according to claim 1, wherein the sending, by the terminal management and control unit through the wired or wireless network, the feature message of the newly-accessed power automation terminal to the terminal management and control center includes:
through a wired or wireless network and based on an MODBUS protocol, the terminal control unit sends the feature message of the newly-accessed electric power automation terminal to the terminal control center.
8. The method according to claim 1, wherein the sending, by the terminal management and control unit through the wired or wireless network, the feature message of the newly-accessed power automation terminal to the terminal management and control center includes:
and the terminal control unit sends the feature message of the newly-accessed electric power automation terminal to the terminal control center through a wired or wireless network based on an IEC101 protocol.
9. The method according to claim 1, wherein the equipment key information includes an equipment model, an equipment shape, a manufacturer, an equipment name, a commissioning date, a number of overhauls, an asset number, preset installation location information, preset topology information, and a function code of the power automation terminal to be installed;
the installation equipment information comprises the equipment model, the equipment shape, the manufacturer, the equipment name, the asset number and the function code of the newly-accessed electric power automation terminal;
the feature message includes a device address and a function code.
10. The method according to claim 1, wherein the performing information modeling on the device key information of the power automation terminal to be installed by using the UML2.0 standard to obtain a model base comprises:
shooting a nameplate of the electric power automation terminal to be installed by using a shooting device to obtain a nameplate photo of the equipment to be installed;
extracting equipment information from the nameplate photo of the equipment to be installed through a picture processing device to obtain key information of the equipment;
numbering the key information of the equipment to obtain numbering information;
making the number information into a label;
and carrying out deep learning and training modeling on the label by adopting a UML2.0 standard to obtain a model base.
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