CN105607957A - OPC DA based data collection and monitoring system and method - Google Patents
OPC DA based data collection and monitoring system and method Download PDFInfo
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- CN105607957A CN105607957A CN201510981229.2A CN201510981229A CN105607957A CN 105607957 A CN105607957 A CN 105607957A CN 201510981229 A CN201510981229 A CN 201510981229A CN 105607957 A CN105607957 A CN 105607957A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/54—Interprogram communication
- G06F9/541—Interprogram communication via adapters, e.g. between incompatible applications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2209/00—Indexing scheme relating to G06F9/00
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Abstract
The invention relates to an OPC DA based data collection and monitoring system and method. The system comprises communication software COM app, an OPC DA server COM Group, a lower system SubSystem, as well as an internal memory shared file Map, a GUI Editor, a Data Recorder, a Viewer reader, a History Data module and a Setting module, wherein the Setting module is used for generating a Tag module of the OPC DA server COM Group and setting a parameter of the lower system SubSystem; the GUI Editor is used for editing variables in a Tag Data file in the Tag module and determining a variable to be observed and operated, and the OPC DA server COM Group is used for recording the acquireed corresponding data in the Data Recorder and the Viewer reader and storing the data in the History Data module. According to the OPC DA based data collection and monitoring system and method provided by the invention, the OPC DA server COM Group is used for directly reading the data from the internal memory to shorten the data reading time; and all system configurations are managed by an xml configuration file, and the modification during system upgrade and the development cooperation difficulty of the modules are simplified.
Description
Technical field
The present invention relates to OPC technical field, relate in particular to a kind of data acquisition and monitoring system and method based on OPCDA.
Background technology
OPC technology is the industrial standard of a socket of multiple Automation Co., Ltd/software and hardware suppliers and Microsoft cooperative development in the world. Its design object is for providing open, accordant interface specification between field apparatus/automatic control application/business administration application software, OPC technology provides a kind of method of consistent access field equipment data to industrial controlling software, make to utilize OPC in the structure of industrial control system, to embody the large advantage of providing.
While utilizing at present opc server to carry out the acquisition and processing of data, communication software COMApp and OPCDA server COMGroup directly call COMApp communication software by COMGroup interface routine the next system SubSystem data are read, and reading efficiency is lower; Meanwhile, the upgrading difficulty of relative program.
Summary of the invention
The present invention overcomes above-mentioned weak point, and a kind of data acquisition and monitoring system and method based on OPCDA is provided.
The present invention achieves the above object by the following technical programs: a kind of data acquisition and monitoring system based on OPCDA, comprise communication software COMApp, OPCDA server COMGroup, the next system SubSystem, also comprise internal memory shared file Map, GUIEditor editing machine, DataRecorder data logger, Viewer reader, HistoryData module, Setting module, described communication software COMApp in order to obtain the address of internal memory shared file Map from OPCDA server COMGroup, communication software COMApp is also in order to read the value of the next system SubSystem and the value reading is left in internal memory shared file Map, described OPCDA server COMGroup obtains the data value of the next system SubSystem in order to read data in internal memory shared file Map, described Setting module is in order to realize the generation of OPCDA server COMGroupTag module and the parameter setting of the next system SubSystem, described GUIEditor editing machine is edited in order to the variable in the TagData file in Tag module, the variable that decision will be observed and operate, OPCDA server COMGroup arrives DataRecorder data logger and Viewer reader save data to HistoryData module in order to the respective data record obtaining.
A data acquisition and monitoring method based on OPCDA, adds internal memory shared file Map between described communication software COMApp and OPCDA server COMGroup and carries out data interaction, and concrete steps are as follows:
S1. according to the next system SubSystem configuration ConfigData file, set up an internal memory shared file Map for each the next system SubSystem;
S2. the next system SubSystem is by the quick reading out data of communication software COMApp write memory shared file Map;
S3. all internal memory shared file Map generate a memory file admin table, the pointer information of internal memory shared file Map is pointed in management, the corresponding the next system SubSystem variable of each element in memory file admin table, this element is managed the configuration information of the next system SubSystem variable;
S4.OPCDA server COMGroup is considered as internal memory shared file Map the real-time mapping of the next system SubSystem internal memory, and all read-write operations all directly read the data in internal memory shared file Map.
Further, the concrete steps of the foundation of described internal memory shared file Map are as follows:
(1) when OPCDA server COMGroup starts, read the information in the configuration file SubSystem.xml of the next system SubSystem, the corresponding internal memory shared file Map of each the next system SubSystem, order reads and creates internal memory shared file Map, the name of internal memory shared file Map order, preserves the internal memory pointer pMap that points to internal memory shared file Map starting position after internal memory shared file Map creates;
(2) internal memory shared file Map the beginning part retains the count tag of 4byte data field as OPCDA server COMGroup reading out data, and the beginning of the each the next system SubSystem variable of internal memory shared file Map simultaneously retains the count tag of 4byte data field as the next system SubSystem data writing;
(3) to each the next system SubSystem, read the configuration information in the each register district in the information in the configuration file SubSystem.xml of the next system SubSystem, according to the size of the next system SubSystem variable, the internal memory pointer pReg of the each the next system SubSystem variable of order computation generation sensing adds the memory file admin table of the next system SubSystem variable, add the place of safety of 8byte at the end of the size internal memory piece of each the next system SubSystem variable, in reading the next system SubSystem variable configuration information, the size information of the each the next system SubSystem variable of program checkout, to there being the configuration information of conflict, abnormal error configurations information does not add memory file management admin table,
(4) repeat the process of (1) (2) (3), read the configuration information of each the next system SubSystem variable, generate memory file admin table.
Beneficial effect of the present invention: OPCDA server COMGroup carries out when data read only need directly reading and need not calling COMApp from internal memory, thereby greatly reduces the time that data read, and can realize the high-speed data acquisition of 100ms rank; All system configuration, by xml configuration file management, realize loose couplings between each program module of system, the difficulty that the amendment while having simplified system upgrade and modules exploitation coordinate.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is general frame figure of the present invention;
Fig. 2 is global procedures flow chart of the present invention;
Fig. 3 is that internal memory shared file Map of the present invention creates schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme of the present invention is further described, but the present invention is not limited to these embodiment.
By reference to the accompanying drawings 1, a kind of data acquisition and monitoring system based on OPCDA, comprise communication software COMApp, OPCDA server COMGroup, the next system SubSystem, internal memory shared file Map, GUIEditor editing machine, DataRecorder data logger, Viewer reader, HistoryData module, Setting module, described communication software COMApp in order to obtain the address of internal memory shared file Map from OPCDA server COMGroup, communication software COMApp is also in order to read the value of the next system SubSystem and the value reading is left in internal memory shared file Map, described OPCDA server COMGroup obtains the data value of the next system SubSystem in order to read data in internal memory shared file Map, described Setting module is in order to realize the generation of OPCDA server COMGroupTag module and the parameter setting of the next system SubSystem, described GUIEditor editing machine is edited in order to the variable in the TagData file in Tag module, the variable that decision will be observed and operate, OPCDA server COMGroup arrives DataRecorder data logger and Viewer reader save data to HistoryData module in order to the respective data record obtaining.
By reference to the accompanying drawings 2, key step of the present invention is: defined variable, comprises and kind, the communication modes etc. of the next system SubSystem generate ConfigData and two XML files of TagData; According to the variable of setting in ConfigData file, communication software COMApp gathers the data of the next system SubSystem and according to agreement form, data is saved in interim shared file Map; OPCDA server COMGroup reads the value in interim shared file Map successively according to agreement form every 100ms, obtains data; Variable in TagData is edited the variable that decision will be observed and operate in GUIEditor editing machine; The variable of observing as required and operating, the respective data record that OPCDA server COMGroup is obtained arrives DataRecorder data logger and Viewer reader save data to HistoryData module.
A data acquisition and monitoring method based on OPCDA, adds internal memory shared file Map between described communication software COMApp and OPCDA server COMGroup and carries out data interaction, and concrete steps are as follows:
S1. according to the next system SubSystem configuration ConfigData file, set up an internal memory shared file Map for each the next system SubSystem;
S2. the next system SubSystem is by the quick reading out data of communication software COMApp write memory shared file Map;
S3. all internal memory shared file Map generate a memory file admin table, the pointer information of internal memory shared file Map is pointed in management, the corresponding the next system SubSystem variable of each element in memory file admin table, this element is managed the configuration information of the next system SubSystem variable;
S4.OPCDA server COMGroup is considered as internal memory shared file Map the real-time mapping of the next system SubSystem internal memory, and all read-write operations all directly read the data in internal memory shared file Map.
OPCDA server COMGroup from the step that reads desired data in internal memory shared file Map is:
(1) communication software COMApp obtains internal memory shared file Map address from OPCDA server COMGroup, and communication software COMApp reads the data of the next system SubSystem according to agreement form;
(2) variable reading leaves in internal memory shared file Map according to the form order of ConfigData file agreement;
(3) the OPCDA server COMGroup variable required according to TagData reads desired data in internal memory shared file Map;
(4) realizing data reads.
OPCDA server COMGroup from the step that reads write operation in internal memory shared file Map is:
(1) OPCDA server COMGroup sends write order to communication software COMApp;
(2) the communication software COMApp execution write operation of communicating by letter with the next system SubSystem;
(3) OPCDA server COMGroup is from reading the result of write operation in internal memory shared file Map;
(4) realizing data writes.
By reference to the accompanying drawings 3, the concrete steps of the foundation of described internal memory shared file Map are as follows:
(1) when OPCDA server COMGroup starts, read the information in the configuration file SubSystem.xml of the next system SubSystem, the corresponding internal memory shared file Map of each the next system SubSystem, order reads and creates internal memory shared file Map, the name of internal memory shared file Map order, preserves the internal memory pointer pMap that points to internal memory shared file Map starting position after internal memory shared file Map creates;
(2) internal memory shared file Map the beginning part retains the time marking of 4byte data field as OPCDA server COMGroup reading out data, and the beginning of the each the next system SubSystem variable of internal memory shared file Map simultaneously retains the time marking of 4byte data field as the next system SubSystem data writing;
(3) to each the next system inferae system SubSystem, read the configuration information in the each register district in the information in the configuration file SubSystem.xml of the next system SubSystem, according to the number of the next system SubSystem variable, the internal memory pointer pReg of the each the next system SubSystem variable of order computation generation sensing adds the memory file admin table of the next system SubSystem variable, add the place of safety of 8byte at the end of the size internal memory piece of each the next system SubSystem variable, in reading the next system SubSystem variable configuration information, the size information of the each the next system SubSystem variable of program checkout, to there being the configuration information of conflict, abnormal error configurations information does not add memory file management admin table,
(4) repeat the process of (1) (2) (3), read the configuration information of each the next system SubSystem variable, generate memory file admin table.
While setting for OPCDA server COMGroup, there is a large amount of variablees, slow this problem of standard interface index speed that uses OPC to provide, the present invention adopts variable search method, Index search method, the character string retrieving method that standard interface provides inquiry velocity in the time that system has a large amount of variable is slow, adopt Index search method, reading speed can fast five times of left and right.
In opc server COMGroup, set up the quick indexing table of configuration information Tag, taking integer Index as index, improve access speed;
Provide interface to OPCClient client, for the character string ID of configuration information Tag is converted to quick indexing Index, provide the fast reading and writing function interface of Index index simultaneously;
Use Index search method, only in the time that system starts, obtained the Index index value of Tag by the community string index community inquiry of configuration information Tag, follow-up data read operation, by the quick positioning configuration information Tag of Index, has improved retrieval rate greatly.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit. Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (3)
1. the data acquisition and monitoring system based on OPCDA, comprises communication software COMApp, OPCDAServer COMGroup, the next system SubSystem, is characterized in that: also comprise internal memory shared fileMap, GUIEditor editing machine, DataRecorder data logger, Viewer reader, HistoryDataModule, Setting module, described communication software COMApp is in order to from OPCDA server COMGroupThe address of middle acquisition internal memory shared file Map, communication software COMApp is also in order to read the next systemThe value of SubSystem also leaves the value reading in internal memory shared file Map in; Described OPCDA clothesBusiness device COMGroup obtains the next system SubSystem in order to the data that read in internal memory shared file MapData value; Described Setting module is in order to realize the life of OPCDA server COMGroupTag moduleThe parameter setting of one-tenth and the next system SubSystem; Described GUIEditor editing machine is in order to Tag moduleIn TagData file in variable edit, the variable that decision will be observed and operate, OPCDA clothesBusiness device COMGroup arrives DataRecorder data logger and Viewer in order to the respective data record obtainingReader save data are to HistoryData module.
2. the data acquisition and monitoring method based on OPCDA according to claim 1, its feature existsIn: between described communication software COMApp and OPCDA server COMGroup, add internal memory and shareFile Map carries out data interaction, and concrete steps are as follows:
S1. according to the next system SubSystem configuration ConfigData file, for each the next systemSubSystem sets up an internal memory shared file Map;
S2. the next system SubSystem is total to by the quick reading out data of communication software COMApp write memoryEnjoy file Map;
S3. all internal memory shared file Map generate a memory file admin table, and management is pointed to internal memory altogetherEnjoy the pointer information of file Map, the corresponding the next system of each element in memory file admin tableSubSystem variable, this element is managed the configuration information of the next system SubSystem variable;
Internal memory shared file Map is considered as the next system by S4.OPCDA server COMGroupThe real-time mapping of SubSystem internal memory, all read-write operations all directly read in internal memory shared file MapData.
3. the data acquisition and monitoring method based on OPCDA according to claim 2, is characterized in that: instituteThe concrete steps of foundation of stating internal memory shared file Map are as follows:
(1) configuration of reading the next system SubSystem when OPCDA server COMGroup startsInformation in file SubSystem.xml, the corresponding internal memory of each the next system SubSystem is shared literary compositionPart Map, order reads and creates internal memory shared file Map, the name of internal memory shared file Map order, inDeposit after shared file Map creates and preserve the internal memory pointer pMap that points to internal memory shared file Map starting position;
(2) internal memory shared file Map the beginning part retains 4byte data field as OPCDA serverThe count tag of COMGroup reading out data, the simultaneously each the next system of internal memory shared file MapThe beginning of SubSystem variable retains the meter of 4byte data field as the next system SubSystem data writingNumber mark;
(3), to each the next system SubSystem, read the configuration file of the next system SubSystemThe configuration information in the each register district in the information in SubSystem.xml, according to the next system SubSystemThe size of variable, order computation generates the internal memory pointer pReg that points to each the next system SubSystem variableAdd the memory file admin table of the next system SubSystem variable, at each the next system SubSystemThe place of safety of 8byte is added at the end of the size internal memory piece of variable, is reading the next system SubSystem variableWhen configuration information, the size information of the each the next system SubSystem variable of program checkout, to there being punchingProminent configuration information, abnormal error configurations information does not add memory file management admin table;
(4) repeat the process of (1) (2) (3), read the configuration information of each the next system SubSystem variable,Generate memory file admin table.
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