CN111105208B - Data communication method for source side power plant control logic - Google Patents
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Abstract
The invention discloses a data communication method for source side power plant control logic, which is based on graphic image recognition, IEC61850 protocol, and object-oriented information and communication service modeling, realizes monitoring of production process data and network-related important parameters, and can convert the control logic provided by different manufacturers into a unified standard universal file format, thereby realizing verification and audit of the process data, the network-related important parameters and the control logic, improving working efficiency and ensuring supervision accuracy; the invention breaks through the traditional manual supervision and inspection mode, can conveniently and rapidly carry out logic verification in different time periods, and realizes the on-line data monitoring and analysis of control logic.
Description
Technical Field
The invention belongs to the technical field of grid-connected power plant network source coordination, and relates to a data communication method aiming at source side power plant control logic.
Background
With the large-scale access of new energy to the power grid, the running characteristics of the power grid change deeply, and the higher requirements are put forward on the regulation and control capability of the unit, so that the coordination management of the unit power grid source needs to be enhanced. In order to further strengthen the supervision and management of grid-connected power plant grid-related safety, ensure the safe and stable operation of a power grid and a generator set, according to the relevant regulations of eighteen anti-measures, national grid operation guidelines (GB/T31464-2015), the notification of the national energy agency about the development of grid-connected power plant grid-related safety special inspection work (national energy comprehensive safety (2016) 298), the national grid company grid source coordination management regulation (national grid (tone/4) 457-2014) and the like, the whole process supervision of the equipment, test, model parameter simulation check and warehouse entry management work of the generator set is required. The control logic, control parameters and protection fixed values of the network-related equipment cannot be changed without permission of a power grid dispatching mechanism. The change of the running state, the control logic, the control parameters and the protection fixed value of the network-related equipment should be applied to the power grid dispatching mechanism in advance, and can be implemented after being approved, and the implementation result is reported. The modification of the control logic is checked and supervised, so that the workload is high, and misjudgment and missed judgment can be caused by artificial factors. And establishing an electronic network-related test control logic, important measuring points and parameter ledgers, so as to comprehensively and timely master the latest condition of source-side network-related equipment and effectively ensure the consistency of network source coordination.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a data communication method aiming at the control logic of the source side power plant, which can convert the control logic provided by different manufacturers into a unified standard general file format so as to realize the verification, auditing and supervision of process data, network-related important parameters and the control logic.
The technical scheme adopted for solving the technical problems is as follows: the data communication method for the source side power plant control logic comprises the steps of establishing a data communication system, wherein the data communication system comprises an image recognition device, a power side substation, a forwarding workstation and a scheduling side master station; based on IEC61850 protocol, a description language file YLD for describing the configuration of the control logic is established on the source side based on the control logic of a distributed control system DCS of the thermal power plant, and a data communication method of the control logic is constructed.
The beneficial effects of the invention are as follows: the invention can convert control logics of different manufacturers into a unified general mode, thereby facilitating better technical communication and communication; the invention can realize the verification and audit of process data, network-related important parameters and control logic, greatly improve the working efficiency and better ensure the supervision accuracy; the invention breaks through the traditional manual supervision and inspection mode, can conveniently and rapidly carry out logic verification in different time periods, and realizes the on-line data monitoring and analysis of control logic.
Drawings
Fig. 1 is a data communication system of a single distributed control system DCS, source side equipment and power side substation of a thermal power plant.
Fig. 2 is a data communication system of a plurality of distributed control systems DCS, source side devices and power side substations of a thermal power plant.
FIG. 3 is a schematic diagram of a module element portion of a logical unit file.
FIG. 4 is a schematic diagram of a point element portion of a logical unit file.
FIG. 5 is a schematic diagram of a partial implementation of connection elements between modules of a logical unit file.
Fig. 6 is a schematic front part of a generic model file.
Fig. 7 is a schematic rear portion of a generic model file.
Detailed Description
As can be seen from the embodiments shown in fig. 1-7, a data communication method for source side power plant control logic comprises the steps of:
(1) Establishing a data communication system, wherein the data communication system comprises an image recognition device, a power side substation, a forwarding workstation and a dispatching side master station; the distributed control system DCS of the thermal power plant is respectively connected with corresponding ports of the source side equipment and the power side substation in a bidirectional manner; the input end of the image recognition device is connected with the corresponding output end of the source side equipment; the power side sub-station is connected with the forwarding workstation through a network cable; the forwarding workstation is connected with the dispatching side master station through a power dispatching data network;
(2) For source side equipment, modeling object-oriented information and communication service based on IEC61850 protocol, and establishing a description language file YLD for describing control logic configuration based on control logic of a distributed control system DCS of the thermal power plant on the source side;
(4) Based on the source side equipment nameplate information scanned by the image recognition device, the source side equipment nameplate KKS code with the unique identification on the source side equipment nameplate is in one-to-one correspondence with a DCS control logic KKS code of the thermal power plant, the image recognition device uploads the source side equipment nameplate information to the power supply side substation, and the DCS of the thermal power plant uploads DCS data information of the thermal power plant corresponding to the source side equipment nameplate to the power supply side substation; the power supply side substation sends the equipment nameplate information, the DCS data information of the thermal power plant distributed control system corresponding to the source side equipment nameplate and the description language file YLD to the forwarding workstation in an interactive mode through IEC61850 protocol;
the DCS logic configuration corresponding to the equipment and the modeled general configuration file of the logic configuration can be clearly known through image recognition, and the presentation of the historical information of the equipment can be realized through image recognition.
(5) The forwarding workstation uploads the data of the power side substation to the dispatching side master station in a wave recording mode through IEC104 protocol by means of IEC61850 protocol;
(6) The dispatching side master station receives the data of the forwarding work station and stores the data in a database.
The method for modeling object-oriented information and communication service based on IEC61850 protocol is as follows:
step one: establishing a logic unit file LLD of control logic, wherein the logic unit file comprises more than 1 Module element, point element and inter-Module connection element Logiclink;
the format of the logical unit file LLD is described as follows:
the root element of the logic unit file is LPCL; the logic unit file comprises a plurality of Module elements, point elements and a connection element LogiclLink between the modules, wherein the Module elements represent modules in the control logic, the Point elements represent points in the control logic, and the connection elements between the modules represent the association relation between the modules;
the attributes of the module elements comprise an ID number, a module name, a module description desc, a module type Class and a module model type, wherein the ID number is a module unique identifier;
one module element contains more than 1 Interface element interfaces, parameter elements Parameters and view elements Views;
the interface element represents the input/output channel information of the module; the Input information attribute comprises an Input name, an Input description desc, an Input data type and an Input initial value Starter; the Output information attribute comprises an Output name, an Output description desc, an Output data type and an Output initial value Starter;
the parameter element characterizes the parameter information of the module, and the attribute of the parameter element comprises the name of the parameter, the description desc of the parameter, the data type of the parameter, the default Value of the parameter and the unit Units of the parameter;
the view element represents the size of the module, which is a representation of the space; the attributes of the view elements comprise graphics rect, connecting lines and text, and the attributes of the graphics comprise graphics height, width, coordinates x/y, color and shape Style; the properties of the line include the line's start coordinates StartX, startY, endX, endY, color, shape Style; the attributes of the Text comprise Text names Text name, text coordinates x/y, text width, text height and Text color;
the point element attributes comprise an original point origin and an intermediate point MidPoint;
the original point attribute comprises an original point ID, an original point design name, an original point type Class, a point name and a point description desc, wherein the original point type refers to an analog quantity or a digital quantity, and the original point ID is a KKS code and is the unique identification of a point;
the attribute of the intermediate point MidPoint comprises an intermediate point ID, an intermediate point type Class, a roll name and a point description desc, wherein the intermediate point type refers to an analog quantity or a digital quantity, and the ID of the intermediate point refers to an intermediate point KKS code and is a unique identifier of the point;
the attribute of the connecting element between the modules comprises a contact name LinkA at one end of a connecting wire, a contact name LinkB at the other end of the connecting wire and positive and negative ProPerty of contact information, 0 represents that a signal is positive, 1 represents that the signal is negative, and the contact names at the two ends of the connecting wire are the ID (identity) of the connected module element plus an interface name;
step two: establishing a universal model file YLD file through a logic unit file LLD file;
the universal model file is a model file which is formed by connecting all logic unit files and files, and the root element of the universal model file is LPCL; one common model file includes more than 1 logical unit file and connection elements between logical unit files; the attributes of the universal model file comprise a file name, a file description desc and a file model type; the attribute of the connection element between the logic units comprises a module element of one logic unit file and a module element of another logic unit file, and the connection naming rule of the module element of the logic unit file is that the ID number of the logic unit is added with the ID number of the module element and the interface name.
The model of the image recognition device is Pixy CMUcam 5); the power side sub-station, the forwarding work station and the dispatching side main station are respectively computers.
The invention provides a method for electronically checking and auditing process data, network-related important parameters and control logic. Based on the image pattern recognition technology, uploading source side equipment data, and establishing a control logic configuration description language (YLD) file capable of describing the YLD file on the source side, wherein the YLD file comprises module parameter information, input and output information and association information between modules. And exchanging the capacity description of the network source coordination control system and the description of the source side power station automation system between the source side power station automation system and the network source coordination control system provided by different manufacturers to form a standard universal file format, and finally realizing a supervision and inspection function by comparing different times of YLD files. The invention relates to the field of network source coordination, and provides a control logic conversion method capable of realizing electronic proofreading and examination by converting a source side system module into a configuration language file based on a graph image recognition technology and based on an IEC61850 protocol.
The invention aims to provide a method for modeling warehouse entry, electronic filing, checking and auditing, which improves the situation that the model of a network-related production test is single and dispersed and does not realize comprehensive warehouse entry, and establishes an electronic file aiming at the situation that the current supervision work does not realize file standard systemization; the invention is based on the graphic image recognition technology, based on IEC61850 protocol, develops object-oriented information and communication service modeling, realizes monitoring and integration of production process data and network-related important parameters, establishes a YLD file capable of describing control logic configuration description language file on a source side, and can convert control logic provided by different manufacturers into a unified standard universal file format by virtue of comparison of the file, thereby realizing verification, electronic filing, verification and verification of process data, network-related important parameters and control logic.
The invention has the following characteristics: 1. uploading information by scanning a source side device tag based on an image pattern recognition technology; 2. aiming at source side equipment, carrying out object-oriented information and communication service modeling based on IEC61850 protocol, and realizing large-capacity production process data and network-related important parameter monitoring and integration of thermal power plants, gas turbines and new energy power generation; 3. establishing a configuration description language file suitable for communication of a network source coordination system, and exchanging capacity description of the network source coordination control system and description of the source side power station automation system between the source side power station automation system and the network source coordination control system provided by different manufacturers; 4. and (3) establishing the checking, electronic filing checking and auditing based on the online production process data and the network-related important parameters and the control logic by taking the data driving and the model as means.
The method is based on an image recognition technology, the field measurement point KKS code/nameplate information is input and recognized, and the information is input into a database; aiming at source side equipment, object-oriented information and communication service modeling is carried out based on IEC61850 protocol, and a data communication system mainly comprises a power side substation/SIS, a forwarding workstation, a dispatching side master station, a communication protocol and the like. The power supply side substation communication function mainly collects real-time data of power generation equipment (DCS) at high speed and sends the data to a forwarding workstation (communication service device) through a data channel according to a formulated protocol. The power side substation can also be updated and replaced by the original SIS system of the unit according to actual conditions. On one hand, the communication function of the forwarding workstation performs data acquisition with the power side substation through 61850 protocol, and on the other hand, the data of the substation is uploaded to the scheduling side main station through a 104+ wave recording mode according to the service function requirement of the scheduling side main station. The communication function of the dispatching side master station receives the unit operation data of the forwarding work station (communication service device) and stores the data in a configured large-capacity database. And each functional module in the master station calls data in the database according to actual requirements to perform system analysis and evaluation. The communication protocol between the master station and the forwarding workstation takes IEC61850 protocol as the blue book, and aims to complete the rapid and stable communication comprising functions of switching value transmission, analog value transmission, fixed value and the like. By compiling XML, a YLD file capable of describing the control logic configuration description language is established at the source side, and the YLD file contains module parameter information, input and output information and association information between modules, so that control logic provided by different manufacturers can be converted into a unified standard general file format. A logic diagram is a logic node, the node comprises a plurality of Module nodes and logic link nodes, the Module represents a Module, an ID is a unique identifier of the Module, a Module type (Class), a Module name (name), a Module description (desc), a Module type (type), a function description of the Module, namely, a function description of the Module, an Interface description, how many interfaces represent how many sub-nodes, parameter descriptions represent parameter information of the Module, the logic link represents a logic connection line, represents an association relation between the modules, and is converted into the language according to the logic diagram provided by a manufacturer; and (3) establishing the checking, electronic filing checking and auditing based on the online production process data and the network-related important parameters and the control logic by taking the data driving and the model as means.
Aiming at the current situation that the current network production test model is single and distributed and comprehensive warehouse entry is not realized, the invention provides a general modeling method aiming at power plant control logic. The invention establishes the control logic module and the associated configuration file YLD based on IEC61850, and configures the modules and the associations in the control logic provided by different manufacturers into a unified and universal file format through the YLD file, thereby realizing the electronic filing and checking of the control logic and facilitating the auditing and technical supervision of the control logic.
The following describes in detail the technical scheme of modeling object-oriented information and communication services based on the IEC61850 protocol according to the present invention with reference to fig. 3 to 7.
Step one: a logical unit file (LLD file) of the control logic is built, and the logical unit file includes a plurality of Module elements (modules), point elements (points), and inter-Module connection elements (logicllinks).
Step two: a common model file (YLD file) is created by a logical unit file (LLD file).
Wherein the format of the logical unit file (LLD file) in step one is described as:
the root element of the logic unit file is LPCL; the logic unit file comprises a plurality of Module elements (modules), point elements (points) and inter-Module connection elements (LogiclLink), wherein the Module elements represent modules in the control logic, the Point elements represent points in the control logic, and the connection elements between the modules represent association relations between the modules.
The attributes of the module element include an ID number (ID), a module name (name), a module description (desc), a module type (Class), and a module model number (type), where the ID number is a module unique identification.
A module element may contain multiple Interface elements (interfaces), parameter elements (Parameters), and view elements (Views).
The interface element represents input/output channel information of the module. Input (Input) information attributes include an Input name (name), an Input description (desc), an Input data type (type), and an Input initial value (Starter); the Output (Output) information attribute includes an Output name (name), an Output description (desc), an Output data type (type), and an Output initial value (Starter).
The parameter element characterizes the parameter information of the module, and its attributes include the name of the parameter (name), description of the parameter (desc), data type of the parameter (type), default Value of the parameter (Value), and unit of the parameter (Units).
The view element represents the size of the module and is a representation of the space. Its attributes include graphics (rect), links (line), text (text), and the graphics attributes include graphics height (height), width (width), coordinates (x/y), color (Color), shape (Style); attributes of the line include the start coordinates (StartX, startY, endX, endY), color (Color), shape (Style) of the line; text attributes include Text name (Text name), coordinates of Text (x/y), text width (width), text height (height), text color (color);
point element attributes include an origin point (origin point) and a middle point (MidPoint).
Wherein the original point attribute includes an original point ID, an original point design name (design name), an original point type (Class), a point name (name), a point description (desc), the original point type refers to an analog quantity or a digital quantity, the ID of the original point is a KKS code, which is a unique identification of the point,
the intermediate point attribute includes an intermediate point ID, an intermediate point type (Class), a point name (name), and a point description (desc), the intermediate point type refers to an analog quantity or a digital quantity, and the intermediate point ID refers to an intermediate point KKS code, which is a unique identification of a point.
The attribute of the connecting element between the modules comprises the contact name (LinkA) at one end of the connecting wire, the contact name (LinkB) at the other end of the connecting wire and the positive and negative (ProPerty) of the contact information, 0 represents that the signal is positive, 1 represents that the signal is negative, and the contact names at the two ends of the connecting wire are the ID of the connected module element plus the interface name.
For example: one end of the inter-module connection element is DQAM06/OL, the DQAM06 represents the ID number of the connected module element, and the OL represents the interface name of the connected module.
As shown in fig. 3-5, the logic unit files of the lower part of the power plant and the control system in the fine village are taken as an embodiment.
As shown in fig. 3-5, the logical unit files are module elements, point elements, and inter-module connection elements with the root element being the LPCL.
In fig. 3, module represents a Module element, the ID corresponding to Module represents the ID number of the Module element, "quality judgment" is a description corresponding to the Module element, "DQAM" is the type (Class) of the Module element, and fig. 1 represents a Module with the ID DQAM06, which is a quality judgment Module. The module element ID is DQAM06 and comprises 7 interface elements, 3 of which are input ends and 4 output ends. The interface element is "IN" which is the input end, its description (desc) is analog input, the data type (type) is REAL type, and there is no initial value (Starter); the interface element name "OH" is an Output terminal (Output), which is a description (desc) of "high-limit Output", the data type (type) of "Bool" and the initial value (Starter) of 0; other input and output terminals and the like. Parameters represents parameter elements, is parameter information of module elements, and four parameter elements are arranged in a module with an ID of DQAM 06. The name of parameter element 1 (Date name) is "LL", its description (desc) is "constant low", its data type (type) is "REAL", and by default "150", the unit is degrees celsius (°c), the other three parameter elements, and so on. Views represents the view element that characterizes the size of the graphic of the module. Its attributes include graphics (rect), links (line), text (text), and the graphics attributes include graphics height (height), width (width), coordinates (x/y), color (Color), shape (Style); attributes of the line include the start coordinates (StartX, startY, endX, endY), color (Color), shape (Style) of the line; text attributes include Text name (Text name), coordinates of Text (x/y), text width (width), text height (height), text color (color); the graphic representation of the view element of fig. 1 is a rectangle (HollowRectangle) having a height of "60" and a width of "20", a coordinate point (x= "10" y= "20") having a total of 7 pieces of line information, several interface elements having several pieces of line information, the text being named "DQAM", and a coordinate position (x= "10" y= "20") having a width of "20" and a height of "20".
Fig. 4 shows dot elements including an origin (origin) and an intermediate (MidPoint), in this example including 4 origins, whose ID numbers are B03M01ATEZ31, B03M01ATEZ32, B03M01ATEZ41, B03M01ATEZ42, respectively, which are described as "a mill 1# main bearing temperature", "a mill 2# main bearing temperature", "a mill 3# main bearing temperature", "a mill 4# main bearing temperature", and data types are Analog quantities (Analog); in this example, there is an intermediate point whose ID number is "B03M01A15R", which represents "A mill bearing temperature < 50 ℃ and is a Digital value (Digital).
Fig. 5 shows connection elements among modules, wherein the attribute of the connection elements among the modules comprises the contact name (LinkA) of one end of a connecting wire, the contact name (LinkB) of the other end of the connecting wire and the positive and negative (ProPerty) of contact information, 0 shows that a signal is positive, 1 shows that the signal is negative, and the contact names of the two ends of the connecting wire are the ID of the connected module element plus an interface name. In this example, one end of the connection line may be the original point or some output port of the module element, and the other end of the connection line is the input port of the module, such as
< LogiclLink link a= "B03M01ATEZ31" propertya= "0" link b= "DQAM06/IN" propertyb= "0"/> "means that the original point described as" a mill 1# main bearing temperature "is forward connected to the" IN "port (analog input port) of the module element having ID number" DQAM06 "; < LogiclLink link a= "DQAM09/OL" propertya= "0" link b= "And22/In4" propertyb= "0"/> "means that the output port" OL "(low-limit output) with ID number" DQAM09 "is forward-connected to the input port" In4 "with ID number" And22 ".
Step three: the description format of the common model file (YLD file) is:
the universal model file is a model file which is formed by connecting all logic unit files and files, and the root element of the universal model file is LPCL; a common model file comprising a plurality of logical unit files and connection elements between the logical unit files; the attributes of the universal model file include a file name (name), a file description (desc), a file model (type); the attribute of the connection element between the logic units comprises a module of one logic unit file and a module of another logic unit file, and the connection naming rule of the module elements of two different logic unit files is the ID number of the logic unit plus the module ID number plus the interface name. For example: one end of the connection element is SCS 03/DQQAM 06/OL, SCS03 represents the ID number of the logic unit, DQQAM 06 represents the ID number of the connected module element, and OL represents the interface name of the connected module.
Fig. 6-7 illustrate generic model files (LLD files) for a good village power plant and a li control system.
The LPCL is a root element, and the universal model file includes a plurality of logical unit files and connection elements between logical units, wherein the logical unit files are the contents of the importing step two. The connection elements between the logic units are added manually by themselves.
Step four: the control logic provided by different manufacturers is built into a universal model file according to the previous steps, so that the electronic filing of the control logic is realized; modeling is carried out on control logic at different times, and checking of the control logic and checking whether the control logic is changed can be rapidly and accurately realized by comparing the model files, so that supervision and inspection are realized.
The invention provides a method for electronically checking, archiving and auditing process data, network-related important parameters and control logic. Based on the image pattern recognition technology, uploading source side equipment data, and establishing a control logic configuration description language (YLD) file capable of describing the YLD file on the source side, wherein the YLD file comprises module parameter information, input and output information and association information between modules. And exchanging the capacity description of the network source coordination control system and the description of the source side power station automation system between the source side power station automation system and the network source coordination control system provided by different manufacturers to form a standard universal file format, and finally realizing a supervision and inspection function by comparing different times of YLD files.
The above-described embodiments are only preferred embodiments of the present invention and are not intended to be exhaustive of the possible embodiments of the present invention. Any obvious modifications thereof, which would be apparent to those skilled in the art without departing from the principles and spirit of the present invention, should be considered to be included within the scope of the appended claims.
Claims (9)
1. A data communication method for source side power plant control logic is characterized in that: establishing a data communication system, wherein the data communication system comprises an image recognition device, a power side substation, a forwarding workstation and a dispatching side master station; based on IEC61850 protocol, a description language file YLD for describing the configuration of the control logic is established on the source side based on the control logic of a distributed control system DCS of the thermal power plant, and a data communication method of the control logic is established; the data communication method for constructing the control logic is as follows:
(1) For source side equipment, modeling object-oriented information and communication service based on IEC61850 protocol, and establishing a description language file YLD for describing control logic configuration based on control logic of a distributed control system DCS of the thermal power plant on the source side;
(2) Based on the source side equipment nameplate information scanned by the image recognition device, the source side equipment nameplate KKS code with the unique identification on the source side equipment nameplate is in one-to-one correspondence with a DCS control logic KKS code of the thermal power plant, the image recognition device uploads the source side equipment nameplate information to the power supply side substation, and the DCS of the thermal power plant uploads DCS data information of the thermal power plant corresponding to the source side equipment nameplate to the power supply side substation; the power supply side substation sends the equipment nameplate information, the DCS data information of the thermal power plant distributed control system corresponding to the source side equipment nameplate and the description language file YLD to the forwarding workstation in an interactive mode through IEC61850 protocol;
(5) The forwarding workstation uploads the equipment nameplate information, the DCS data information of the thermal power plant distributed control system corresponding to the source side equipment nameplate and the description language file YLD to the dispatching side master station in a wave recording mode through IEC104 protocol;
(6) The dispatching side master station receives the equipment nameplate information of the forwarding workstation, the DCS data information of the distributed control system of the thermal power plant corresponding to the source side equipment nameplate and the description language file YLD, and stores the data in a database.
2. The data communication method for source side power plant control logic according to claim 1, wherein the object-oriented information and communication service modeling method based on IEC61850 protocol is as follows:
step one: establishing a logic unit file LLD of control logic, wherein the logic unit file comprises more than 1 Module element, point element and inter-Module connection element Logiclink;
step two: establishing a general model file through a logic unit file LLD file;
the universal model file is a model file which is formed by connecting all logic unit files and files, and the root element of the universal model file is LPCL; one common model file includes more than 1 logical unit file and connection elements between logical unit files; the attributes of the universal model file comprise a file name, a file description desc and a file model type; the attribute of the connection element between the logic units comprises a module element of one logic unit file and a module element of another logic unit file, and the connection naming rule of the module element of the logic unit file is that the ID number of the logic unit is added with the ID number of the module element and the interface name.
3. A method of data communication for source side power plant control logic according to claim 2, wherein: the format of the logical unit file LLD is described as: the root element of the logic unit file is LPCL; the logic unit file comprises a plurality of Module elements, point elements and a connection element LogiclLink between the modules, wherein the Module elements represent modules in the control logic, the Point elements represent points in the control logic, and the connection elements between the modules represent the association relation between the modules;
the attribute of the Module element Module comprises an ID number, a Module name, a Module description desc, a Module type Class and a Module model type, wherein the ID number is a Module unique identifier;
one module element contains more than 1 Interface element interfaces, parameter elements Parameters, and view elements Views.
4. A method of data communication for source side power plant control logic according to claim 3, wherein: the Interface element Interface represents the input/output channel information of the module; the Input information attribute comprises an Input name, an Input description desc, an Input data type and an Input initial value Starter; the Output information attribute includes an Output name, an Output description desc, an Output data type, and an Output initial value Starter.
5. The method of data communication for source side power plant control logic of claim 4, wherein: the parameter element Parameters characterizes the parameter information of the module, and the attribute of the parameter element comprises a name of the parameter, a description desc of the parameter, a data type of the parameter, a default Value of the parameter and a unit of the parameter.
6. The method of data communication for source side power plant control logic of claim 5, wherein: the view element Views represents the size of the module, which is a representation of space; the attributes of the view elements comprise graphics rect, connecting lines and text, and the attributes of the graphics comprise graphics height, width, coordinates x/y, color and shape Style; the properties of the line include the line's start coordinates StartX, startY, endX, endY, color, shape Style; the attributes of the Text include Text name, text coordinates x/y, text width, text height, text color.
7. The method of data communication for source side power plant control logic of claim 6, wherein: the Point element Point attributes comprise an original Point origin and an intermediate Point MidPoint;
the original point origin attribute comprises an original point ID, an original point design name, an original point type Class, a point name and a point description desc, wherein the original point type refers to an analog quantity or a digital quantity, and the original point ID is a KKS code and is the unique identification of a point;
the attribute of the intermediate point MidPoint comprises an intermediate point ID, an intermediate point type Class, a roll name and a point description desc, wherein the intermediate point type refers to an analog quantity or a digital quantity, the ID of the intermediate point refers to an intermediate point KKS code, and the ID of the intermediate point is a unique identifier of the point.
8. The method of data communication for source side power plant control logic of claim 7, wherein: the inter-module connection element Logiclink attribute comprises a contact name LinkA at one end of a connection line, a contact name LinkB at the other end of the connection line and positive and negative ProPerty of contact information, 0 represents that a signal is positive, 1 represents that the signal is negative, and the contact names at two ends of the connection line are the ID of the connected module element plus an interface name.
9. The method of data communication for source side power plant control logic of claim 8, wherein: in the data communication system, a distributed control system DCS of the thermal power plant is respectively connected with corresponding ports of source side equipment and a power side substation in a bidirectional manner; the input end of the image recognition device is connected with the corresponding output end of the source side equipment; the power side sub-station is connected with the forwarding workstation through a network cable; the forwarding workstation is connected with the dispatching side master station through a power dispatching data network; the model of the image recognition device is Pixy CMUcam5; the power side sub-station, the forwarding work station and the dispatching side main station are respectively computers.
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