CN101183263A - Sharing platform applied to process flow industry process control system - Google Patents
Sharing platform applied to process flow industry process control system Download PDFInfo
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Abstract
The invention relates to a sharing platform applied to process control systems in process industry, belonging to the technical field of sharing platforms of process control systems, comprising a process control system, a data exchanging machine, a model server, a report server, a data center server, and a message center server. The invention is characterized in that: the process control system is divided into a plurality of single function modules according to system functions; the data exchanging machine enables the data exchange between the PLC in an external system and the data center server; the model server provides model service to the process control system; the report server provides report service to the process control system; the data center server is the transfer station of data streams, which provides data sharing service to the model server, the report server and the process control system; the message center server is the transfer station for massage flows, which receives the messages of the other modules of the sharing platform and the process control system; all the messages can be seen on the user interface of the process control system. The invention has the advantages that: the development process of process control systems in process industry is simplified, and data service, message service, report service and model service are provided to the process control system.
Description
Technical field
The present invention relates to Process Control System shared platform technical field, a kind of shared platform that is applied to process flow industry process control system particularly is provided.
Technical background
At present, the performance history of process flow industry process control system is: (be mainly the PLC control system, main brand PLC mainly contains Omron, Siemens, Mitsubishi, Schneider, ABB, Siemens's series to the developer at present according to field control system.) solve data collection problems, collect customer demand then, the functional module of definition procedure control system is so that satisfy the demand of different user to Process Control System software.In this process, the common problem that the developer will solve is:
1, solution is as the data collection problems of all PLC of Process Control System data source.
2, the data interaction problem of Process Control System intermodule.
3, the interacting message problem of Process Control System intermodule.
4, the model in the Process Control System functional module.
5, the exploitation of the form in the Process Control System functional module.
Each Process Control System all will solve the problem of these general character, therefore is necessary these functions are taken out unified the solution.The present invention designs and develops under this background.
Summary of the invention
The object of the present invention is to provide a kind of shared platform that is applied to process flow industry process control system, for process flow industry process control system provides data, services, messenger service, model service and form service function.
Shared platform is orientated a middle layer between on-the-spot PLC and the Process Control System as, the interaction problems between field control system and the bottom PLC, the representation of having unified the Process Control System process data and the representation of message have been solved, the coupled problem of multi-to-multi when having solved data interaction and interacting message between the Process Control System simple function module, and the basic framework that provides Process Control System to have functional block model and form, make Process Control System developer monograph on control algolithm and control Research on effect.
In order to solve above technical matters, the present invention has adopted following technical proposals:
The present invention comprises Process Control System, and it is some simple function modules by system function division; Data exchange unit, the data interaction in the realization external system between PLC and the data center server; The model service device is the Process Control System service of supplying a model; Report server is for Process Control System provides the form service; Data center server, the terminal of data stream provides data, services; Message central server, the terminal of message flow, the service of giving information comprises system message, production incident, industrial accident etc.Fig. 1 has described the relation between them, the flow direction of solid arrow representative of data flow among the figure, and dotted arrow is represented the flow direction of message flow.Send to data center server after the data of data exchange unit collection from external system, data center server is issued these data and is used for report server, model service device and Process Control System.The model service device sends to The model calculation in the data center server.Process Control System sends user input data or other data to report server, model service device and data center server.The model of some on-line operations is write result of calculation among the external system PLC by data exchange unit, realizes control.Message central server receives from the message in data exchange unit, model service device, report server, data center server and the Process Control System, and the user checks all message in the message central server and makes corresponding processing by the Process Control System user interface.
Data exchange unit has been realized the exchanges data between shared platform and the PLC, and data exchange unit will send to from the data that PLC gathers in the data center server tag hub.At present, the PLC of most of brand supports the OPC standard, and data exchange unit is the software that follow the OPC standard and a PLC carry out exchanges data.
Data center server (referring to Fig. 2).It comprises tag hub, database.
Tag hub, label are the representation of process data, have all in the tag hub server memory and will realize the real-time process data shared.It is stored in internal memory and the retrieving data by server processes, and Real-time Data Service is provided.Tag hub includes a label initializer, when the null value label appears in tag hub, sends the default label value to tag hub, for the null value label is given default value.Comprise an event tag maker, produce event tag (as the absolute/variation relatively of analog value, the switching value state variation, change in count), when tag hub single incident label value changes, the single incident label that the event tag maker obtains these variations generates more senior event tag, sends to tag hub then.Comprise a clock label maker, produce the clock label and send to tag hub, the clock label is a timer, the periodic triggering.Comprise a tag computation device, be used for data are carried out secondary calculating.Calculating is undertaken by analytical expression, and expression formula can comprise arithmetic operator, mathematical function, self-defining function.The tag computation device obtains the input data that expression formula needs from tag hub, after calculating is finished result of calculation is sent to tag hub.Comprise a label buffer, the label value of storage in a period of time that tag hub obtains, and data, services is provided.
Database adopts relational database, is used for store configuration information and historical data.For realizing above function and guaranteeing not overexpansion of database data.For database design a data write device, it obtains label and is written to the database from tag hub.Data reader:, provide the historical data service by the historical data in its reading database.A data canceller, the stale data in the delete database make database keep the not overexpansion of normal response speed.
Data center server data, services mode is: tag hub provides Real-time Data Service, and the label buffer provides the internal memory historical data service of short time, and data reader provides long historical data service.
Message central server (referring to Fig. 3).It comprises message center, database, journal file.
Message center: have latest news in its server memory from data center server, data exchange unit, report server, model service device and Process Control System simple function module.It is stored and searching message in internal memory by server processes, if there is new message then according to the configuration of message history message to be write in database or the journal file.The user checks all message by the user interface in the Process Control System, and makes corresponding processing.Message mainly is warning, information, and the production incident, system state has been described in industrial accident.
Database: relational database can be the database in the data center server.Be used for storing history message.
Journal file: can be used for storing history message for board or other file.
Message central server messenger service mode is: the message that the user checks message center by the Process Control System user interface, thus effect is controlled in operation conditions and the process control of understanding system.
Model service device (with reference to figure 4).Model is linear regression, non-linear regression, neuroid, support vector machine etc.
The model service device comprises:
A model unified interface provides the model information method of obtaining, change model information method, model running method, model online training method.Wherein model information is meant model name, types of models, model parameter, specification of a model, model input variable, input variable data type, model output variable, output variable data type.All models are all inherited this interface.
Some model files, by giving the model specification input and output, moving model generates, and it has preserved model parameter.
A model pairing file, it has preserved model name, and the model running time, what model imports, and where outputs to.
A model access device, its grafting data and model, scan round model pairing file becomes moving model parameters needed form to packing data from data source earlier to the time, moving model then, rreturn value unpacked is written to tag hub.
Report server (with reference to figure 5).Form is for using the Excel program of VSTO (Office class libraries among the VS.Net2005) exploitation.
Report server comprises:
The form masterplate is Excel masterplate file, is developed by the form developer.
The form configuration file is the xml file, has preserved the title of registration, and relevant informations such as the form cycle of operation can be by Process Control System form configurator to its setting of making amendment.
A report form generator, this module scan round form configuration file, open its template Excel file, the operation internal processes obtains data filling and format from data center server when opening the masterplate file, and template (padding data and format) is saved as the pure Excel report file that does not contain code.The report file that Process Control System form browser can remote access have generated.
Report file: do not contain the excel file of code, be the history report file that has generated.
The shared platform advantage is:
1, because the exploitation of Process Control System is based upon on the on-the-spot PLC basis, when this basis changes, will produce very big influence, cause difficult in maintenance the operation of Process Control System.This middle layer has been arranged, even PLC changes, Process Control System need not change.
2, exchanges data between the Process Control System functional module and message transmission change mutual between functional module and data center server, the message central server into, have removed the coupling between each module of Process Control System.
3, provide model service and form service, simplified the exploitation of Process Control System model and form.
Accompanying drawing is described
Fig. 1 is the shared platform system assumption diagram, has comprised the main modular of shared platform and the interactive relation between the module.
Fig. 2 is data center server main functional modules of the present invention and intermodular data interactive relation synoptic diagram.
Fig. 3 is that message central server main functional modules of the present invention and message flow are to synoptic diagram.
Fig. 4 is the fundamental diagram of the model service device of the present invention service of supplying a model.
Fig. 5 is the fundamental diagram that report server provides the form service.
Fig. 6 is an exemplary network structure figure who is used to implement shared platform of the present invention.
Specific embodiments
Referring to Fig. 6, for implementing the network structure of this invention.The PLC that comprises some image data, shared platform server, Process Control System.Comprise data exchange unit, data center server, message central server, model service device, report server in the shared platform server.Process Control System comprises a station server and a printer.The shared platform server is by the exchanges data between Industrial Ethernet realization and the PLC.
Referring to Fig. 2, data center server among the present invention comprises tag hub, the label buffer, label initializer, clock label maker, event tag maker, tag computation device, data reader, data deletion device, data writing device, database, data reader.
Referring to Fig. 3, the message central server among the present invention is the part in the frame of broken lines, comprises message center, database (can be same database with the database in the data center server), journal file.
Implementation process is:
1, label allocation and message
Being configured in the data center server database of label and message realized in the shared platform, is used for the tables of data of store configuration information to be called allocation list.
(1) the configuration data central server will be realized all labels of sharing
Comprise in the data center server tag hub module and will realize whole labels of sharing, these labels must at first dispose in the database configuration table, the label that tag hub provides can only be the label that has disposed in the allocation list, and the user can increase new label according to demand in allocation list.
When system start-up or operation, some label is the null value label, therefore will configure the default value of these labels in allocation list, by these null value labels of label initializer initialization.
(2) classification configurations of label
The label of tag hub by sources is divided into data exchange unit, simple function module, tag computation device, clock label maker, event tag maker.Therefore will distinguish the configuration data interchanger in the database configuration table will be from the label of PLC collection, Process Control System simple function module will be to the label of tag hub transmission, the clock label that the computation tag that the tag computation device will produce, clock label maker will generate, the event tag that the event tag maker will generate.
Want the label of buffer memory to derive from tag hub in the label buffer, in the database configuration table, dispose the label that to realize buffer memory according to the actual requirements.
The label that the configuration data canceller will be deleted in the database configuration table mainly is the configuration of deletion time and deletion tag class according to the actual requirements.
The configuration data write device will be written to the label in the database.
(3) message arrangement
The configuration of message mainly is the classification/hierarchical arrangement of message, and classification is to classify by the module that sends message to message center, is classified as information, warning, mistake.
2, provide data, services and messenger service
After configuring the label and message of data center server and message central server respectively, initiation message central server, data exchange unit, data center server.Data center server begins to receive and the issue label, and message central server begins to receive and give out information.Process Control System simple function module, report server, model service device are to data center server request label.Check all message in the message central server by the Process Control System user interface.
3, the model service device service of supplying a model.
Fig. 4 has described the use of model.The model service device comprises model unified interface, model pairing file, model access device.
Concrete steps are:
(1) the modeling personnel set up model according to the model unified interface, and moving model generation model file, and model file is the xml file, has preserved model parameter.
(2) set up model pairing file, model pairing file is the xml file, has preserved model name, working time, and what is imported, and where outputs to.
(3) model access device scan round model pairing XML file becomes moving model parameters needed form to packing data from data source earlier to the time, moving model then, and rreturn value unpacked is written to the data center server tag hub.
(4) model running can accumulate some new samples after a period of time, and may need the online self study of model (as the neural network retraining) this moment, and this method is provided in the model unified interface.The pairing that the model access device utilizes the input of data source and model, output is called model on-line study method when specifying training condition to satisfy (time cycle/new samples number/model error), if obtained convergence, then replace old model with new model.
4, report server provides the form service.
Fig. 5 has described the use of form, and report server comprises form masterplate, form configuration file, report form generator, report file.
Concrete steps are:
(1) developer generates a report form template with VSTO (Office class libraries among the VS.Net2005) original idea Excel engineering, has realized data pick-up in the template, format.
(2) user is by the form configurator Remote configuration form in the Process Control System Reports module, comprises when form generates, store path.
(3) form has been disposed in report form generator scan round, open its template Excel file, the operation internal processes is filled data and format when opening the masterplate file, at last template (padding data and format) is saved as the pure Excel report file that does not contain code.
(4) report file of Sheng Chenging is placed on the report server, and the user navigates to behind the form by Process Control System form browser and it is become Stream from report server Excel is delivered to client another mistake and changes into Excel and check.
(5) printing reports.
Claims (8)
1. a shared platform that is applied to process flow industry process control system is characterized in that, comprises Process Control System, and it is some simple function modules by system function division; Data exchange unit, the data interaction in the realization external system between PLC and the data center server; The model service device is the Process Control System service of supplying a model; Report server is for Process Control System provides the form service; Data center server, the terminal of data stream provides data, services; Message central server, the terminal of message flow, the service of giving information comprises system message, production incident, industrial accident; Pass between them is: send to data center server after the data of data exchange unit collection from external system, data center server is issued these data and is used for report server, model service device and Process Control System; The model service device sends to The model calculation in the data center server; Process Control System sends user input data or other data to report server, model service device and data center server; The model of some on-line operations is write result of calculation among the external system PLC by data exchange unit, realizes control; Message central server receives from the message in data exchange unit, model service device, report server, data center server and the Process Control System, and the user checks all message in the message central server and makes corresponding processing by the Process Control System user interface.
2. according to the described shared platform of claim 1, it is characterized in that data exchange unit has been realized the exchanges data between shared platform and the PLC, data exchange unit will send in the data center server tag hub from the data that PLC gathers; PLC supports the OPC standard, and data exchange unit is the software that follow the OPC standard and a PLC carry out exchanges data.
3. according to the described shared platform of claim 1, it is characterized in that data center server comprises tag hub, database;
Tag hub, label are the representation of process data, have all in the tag hub server memory and will realize the real-time process data shared.It is stored in internal memory and the retrieving data by server processes, and Real-time Data Service is provided.Tag hub includes a label initializer, when the null value label appears in tag hub, sends the default label value to tag hub, for the null value label is given default value.Comprise an event tag maker, produce event tag (as the absolute/variation relatively of analog value, the switching value state variation, change in count), when tag hub single incident label value changes, the single incident label that the event tag maker obtains these variations generates more senior event tag, sends to tag hub then.Comprise a clock label maker, produce the clock label and send to tag hub, the clock label is a timer, the periodic triggering.Comprise a tag computation device, be used for data are carried out secondary calculating.Calculating is undertaken by analytical expression, and expression formula can comprise arithmetic operator, mathematical function, self-defining function.The tag computation device obtains the input data that expression formula needs from tag hub, after calculating is finished result of calculation is sent to tag hub.Comprise a label buffer, the label value of storage in a period of time that tag hub obtains, and data, services is provided.
4. according to the described shared platform of claim 3, it is characterized in that, data center server data, services mode is: tag hub provides Real-time Data Service, and the label buffer provides the internal memory historical data service of short time, and data reader provides long historical data service.
5. according to the described shared platform of claim 1, it is characterized in that database adopts relational database, be used for store configuration information and historical data; For realizing above function and guaranteeing not overexpansion of database data; For database design a data write device, it obtains label and is written to the database from tag hub; Data reader:, provide the historical data service by the historical data in its reading database; A data canceller, the stale data in the delete database make database keep the not overexpansion of normal response speed; Relational database is the database in the data center server, is used for storing history message.
6. according to the described shared platform of claim 1, it is characterized in that message central server comprises message center, database, journal file;
Message center: have latest news in its server memory from data center server, data exchange unit, report server, model service device and Process Control System simple function module; It is stored and searching message in internal memory by server processes, if there is new message then according to the configuration of message history message to be write in database or the journal file; Message comprises warning, information, and the production incident, system state has been described in industrial accident;
Message central server messenger service mode is: the message that the user checks message center by the Process Control System user interface, thus effect is controlled in operation conditions and the process control of understanding system.
7. according to the described shared platform of claim 1, it is characterized in that the model of model service device is linear recurrence, non-linear regression, neuroid, support vector machine;
The model service device comprises a model unified interface, and the model information method of obtaining, change model information method, model running method, model online training method are provided; Wherein model information is meant model name, types of models, model parameter, specification of a model, model input variable, input variable data type, model output variable, output variable data type; All models are all inherited this interface;
The model service device comprises some model files, and by giving the model specification input and output, moving model generates, and it has preserved model parameter;
The model service device comprises a model pairing file, and it has preserved model name, and the model running time, what model imports, and where outputs to;
The model service device comprises a model access device, its grafting data and model, scan round model pairing file becomes moving model parameters needed form to packing data from data source earlier to the time, moving model then, rreturn value unpacked is written to tag hub.
8. according to the described shared platform of claim 1, it is characterized in that the form of report server is for using the Excel program of VSTO exploitation;
Report server comprises:
The form masterplate is Excel masterplate file;
The form configuration file is the xml file, has preserved the title of registration, and the form cycle of operation, etc. relevant information, Process Control System form configurator can be to its setting of making amendment.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102591206A (en) * | 2011-01-13 | 2012-07-18 | 西门子公司 | Method and system for analyzing temporal flow characteristics |
| CN102647331A (en) * | 2011-02-21 | 2012-08-22 | 施耐德电器工业公司 | Programmable logic controller with historical variable and data communication method of controller |
| CN102724279A (en) * | 2012-05-15 | 2012-10-10 | 北京首钢自动化信息技术有限公司 | System for realizing log-saving and log-managing |
| CN103544201A (en) * | 2012-07-09 | 2014-01-29 | Ls产电株式会社 | Apparatus and method for searching for plc data log |
| CN103699089A (en) * | 2013-12-23 | 2014-04-02 | 北京金自天正智能控制股份有限公司 | Process control system and method |
| CN104050154A (en) * | 2014-06-27 | 2014-09-17 | 国家电网公司 | Data entry method |
| CN104049577A (en) * | 2013-03-13 | 2014-09-17 | 西门子公司 | Method for operating an industrial control system and industrial control system |
| CN108181878A (en) * | 2018-01-04 | 2018-06-19 | 江苏科瑞恩自动化科技有限公司 | A kind of kinetic control system for the equipment containing vision system |
| CN108646642A (en) * | 2018-07-18 | 2018-10-12 | 福建省水利水电勘测设计研究院 | Intelligent water power station control system based on data sharing platform and method |
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- 2007-12-20 CN CNB2007101799702A patent/CN100492237C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102591206A (en) * | 2011-01-13 | 2012-07-18 | 西门子公司 | Method and system for analyzing temporal flow characteristics |
| CN102591206B (en) * | 2011-01-13 | 2016-03-30 | 西门子公司 | For the method and system of flow characteristic analysis time |
| CN102647331B (en) * | 2011-02-21 | 2014-12-17 | 施耐德电器工业公司 | Programmable logic controller with historical variable and data communication method of controller |
| CN102647331A (en) * | 2011-02-21 | 2012-08-22 | 施耐德电器工业公司 | Programmable logic controller with historical variable and data communication method of controller |
| CN102724279A (en) * | 2012-05-15 | 2012-10-10 | 北京首钢自动化信息技术有限公司 | System for realizing log-saving and log-managing |
| CN102724279B (en) * | 2012-05-15 | 2014-12-31 | 北京首钢自动化信息技术有限公司 | System for realizing log-saving and log-managing |
| CN103544201A (en) * | 2012-07-09 | 2014-01-29 | Ls产电株式会社 | Apparatus and method for searching for plc data log |
| CN104049577A (en) * | 2013-03-13 | 2014-09-17 | 西门子公司 | Method for operating an industrial control system and industrial control system |
| CN103699089A (en) * | 2013-12-23 | 2014-04-02 | 北京金自天正智能控制股份有限公司 | Process control system and method |
| CN104050154A (en) * | 2014-06-27 | 2014-09-17 | 国家电网公司 | Data entry method |
| CN104050154B (en) * | 2014-06-27 | 2017-11-14 | 国家电网公司 | Data entry method |
| CN108181878A (en) * | 2018-01-04 | 2018-06-19 | 江苏科瑞恩自动化科技有限公司 | A kind of kinetic control system for the equipment containing vision system |
| CN108646642A (en) * | 2018-07-18 | 2018-10-12 | 福建省水利水电勘测设计研究院 | Intelligent water power station control system based on data sharing platform and method |
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