CN112415989A - Whole-plant monitoring system and monitoring method for loop performance evaluation - Google Patents
Whole-plant monitoring system and monitoring method for loop performance evaluation Download PDFInfo
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Abstract
The invention provides a whole plant monitoring system for loop performance evaluation, which comprises a whole plant monitoring server, a data communication assembly and a plurality of PID performance evaluation workstations, wherein the whole plant monitoring server comprises a configuration software module and a whole plant monitoring service module; the whole plant monitoring server sends a command request to the PID performance evaluation workstation through the data communication component, and the specified PID performance evaluation workstation collects relevant data of the controlled device according to the call request and returns the relevant data to the whole plant monitoring server through the data communication component for analysis and processing. The whole plant monitoring system and the monitoring method for loop performance evaluation can collect and display the real-time evaluation and statistical results of a plurality of sets of devices scattered under different operation departments in a centralized manner, and can effectively overcome the defect that the whole plant monitoring is difficult to realize by the current single-node PID performance evaluation software.
Description
Technical Field
The invention relates to a PID loop performance evaluation method in the field of industrial automatic control, in particular to a plant monitoring method for loop performance evaluation.
Background
According to statistics, more than 90% of automatic control loops adopt PID (proportion-proportion, integral-integral and differential-derivative) control strategies. With the gradual increase of the industrial automation level, the system is controlled in a distributed mode
A large-scale Distributed Control System (DCS) has become a necessity in industrial production.
In the flow control field, the defect that the running state of the device is difficult to monitor in real time can be effectively solved by using PID performance evaluation software. However, in the existing PID performance evaluation software, the evaluation target mainly stays at the plant level, and the purpose of centralized monitoring of a plurality of sets of devices scattered in each plant is not supported for a while in terms of function. If a plant is large in scale, the plant is provided with a plurality of branch plants and a plurality of workshops, each workshop is provided with a plurality of operation parts, each operation part possibly comprises one or more PID workstations, and if the whole plant evaluation and monitoring management cannot be implemented, the evaluation results of all operation part devices are dispersed in all isolated evaluation systems, which brings great inconvenience to the real-time monitoring and management of upper-layer managers.
For example, the chinese patent publication No. CN106774243A is a "PID performance evaluation method" proposed by the present applicant. The method belongs to a workshop-level performance evaluation algorithm, and the whole control algorithm relates to the following steps: the system comprises a controlled device, a DCS, a data platform, an evaluation algorithm, performance evaluation software and the like. The controlled device, the DCS and the data platform are responsible for acquiring production data of the control loop; the evaluation algorithm is based on production data, an iterative updating mode is adopted through a process model, the possibility of performance deterioration caused by manual maintenance is reduced, and finally evaluated results are recorded in a database; the evaluation software is a UI interactive interface and is responsible for displaying the evaluation result on the front end, so that a user can look up the evaluation and statistical results of each loop in real time.
On the other hand, from the perspective of advanced control and fine processing, in order to achieve optimal control of product quality, it is necessary to couple the control devices in each branch plant or operation section for correlation analysis, collect and refine real-time evaluation and statistical information of each branch plant device, and then use a professional-level performance evaluation algorithm to achieve real-time evaluation, historical statistics and trend analysis of the operation condition of the whole plant, so as to achieve the purpose of predicting product quality in advance.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a plant-wide distributed PID performance evaluation device and method, which adopt a distributed deployment mode on the basis of single-node PID performance evaluation to summarize and intensively display the real-time evaluation and statistical results of a plurality of devices scattered under different operation departments so as to solve the defect that the current single-node PID performance evaluation software is difficult to realize plant monitoring.
Therefore, the first purpose of the invention is to provide an embodiment of a plant monitoring system for loop performance evaluation, which comprises a plant monitoring server and a PID performance evaluation workstation, wherein the plant monitoring server and the PID performance evaluation workstation are in communication connection through a data communication component; the whole plant monitoring server comprises a configuration software module and a whole plant monitoring service module; the system comprises a whole plant monitoring server, a PID performance evaluation workstation, a configuration software module and a whole plant monitoring service module, wherein the whole plant monitoring server is used for sending a command request to the PID performance evaluation workstation through a data communication module, the PID performance evaluation workstation is used for collecting related data of a controlled device according to the request and then returning the data to the whole plant monitoring server through the data communication module, and the whole plant monitoring service module is used for analyzing and processing the data returned by the PID performance evaluation workstation according to the configuration information sent by the configuration software module.
Furthermore, the whole plant monitoring server comprises an upper-level application system which is used for displaying and monitoring the results of the analyzed and processed data returned by the whole plant or branch plant PID performance evaluation workstation.
Further, the configuration information includes the packet management and node configuration information of the PID performance evaluation workstation; the whole plant monitoring server comprises a node manager for uniformly managing the online state and the operation information of each node; the configuration software module is provided with a grouping management unit and a node management unit, wherein: the group management unit is used for configuring the mapping relation between the PID performance evaluation nodes in the PID workstation and the whole plant monitoring server through the PID performance evaluation node manager, reconfiguring each node according to the affiliated relation of the operation part, and dividing the PID workstation into corresponding group area nodes according to the affiliated relation; the node management unit is used for uniformly configuring site access addresses of different PID performance evaluation nodes in packet management and generating a corresponding relation mapping table.
Furthermore, the whole plant monitoring service module comprises a planning task unit, a task scheduler, a calculation engine and a whole plant evaluation and analysis module; the planning task unit is used for receiving configuration information issued by the configuration software module, generating a corresponding calculation task and pushing the calculation task to the task scheduler, the task scheduler delivers the calculation task to the calculation engine, and the calculation engine sends a data access request to the PID workstation according to the calculation task and carries out evaluation and processing on the requested PID workstation data by calling the whole plant evaluation and analysis module.
Furthermore, the whole plant monitoring server also comprises a whole plant monitoring service interface, and the whole plant monitoring server is responsible for receiving an access request of a superior application system and returning a result of analysis processing of data returned by the PID performance evaluation workstation to the superior application system through the whole plant monitoring service interface.
Further, the analyzing and processing of the data returned by the PID performance evaluation workstation includes at least one of alarm monitoring of the operating state of the PID performance evaluation workstation, performance evaluation based on historical data, secondary statistics based on an evaluation report, and online diagnosis of a problem loop or device.
The second objective of the present invention is to provide an embodiment of a PID plant-wide monitoring method for loop performance evaluation, which includes the following steps:
the configuration software module of the whole plant monitoring server is responsible for configuring configuration information including a whole plant monitoring plan and sending the configuration information to the whole plant monitoring service module of the whole plant monitoring server, and the whole plant monitoring service module executes the monitoring plan on the whole plant device according to the configuration information;
the plant monitoring server sends a command request to the PID performance evaluation workstation through the data communication component, the PID performance evaluation workstation is used for collecting relevant data of the controlled device according to the request and returning the relevant data to the plant monitoring server through the data communication component, and a plant monitoring service module of the plant monitoring server analyzes and processes the data returned by the PID performance evaluation workstation according to configuration information sent by the configuration software module.
Further, the configuration information configuration includes the following steps:
creating virtual PID nodes corresponding to the PID performance evaluation workstations through a PID performance evaluation node manager, configuring an IP address and a port number for each virtual PID node, binding the virtual PID nodes with access connection addresses of the PID performance evaluation workstations, generating a node access mapping table, and completing node configuration of the monitoring device of the whole plant; setting access authority to the whole plant area range; making a whole plant monitoring plan; and storing the configuration information such as grouping, authority, monitoring plan and the like into a configuration file.
Further, the monitoring task execution comprises the following steps:
after acquiring the configuration information submitted by the configuration software module, a planning task unit in the whole plant monitoring service module creates a calculation task according to the task type and delivers the calculation task to a task scheduler; the task scheduler delivers the calculation tasks to a calculation engine; the calculation engine sends a data access request to the PID workstation through the data communication component according to the content of a specific execution task, and calls a whole plant evaluation and analysis module after receiving data returned by the PID performance evaluation workstation to analyze and process the requested PID workstation data; and storing the analysis processed result into a relational database through a data accessor.
The invention has the beneficial effects that: the utility model provides a whole factory monitored control system that loop performance appraises used, with the help of data communication subassembly, will spread the PID node server of each branch factory and grid-connect, form a whole factory level PID monitored control system, and utilize built-in whole factory to appraise and analyze the module, to each branch factory PID node propelling movement come real-time assessment result, carry out whole factory level secondary evaluation and statistical analysis, solve current PID performance evaluation software and be difficult to realize carrying out centralized evaluation and statistical shortcoming to cross factory's device. The advantages are as follows: by the method, the PID evaluation systems of the branch plants are connected in a grid to form a whole plant monitoring system, the centralized monitoring of the real-time commissioning conditions of all the devices of the whole plant and the real-time statistics of the whole commissioning indexes (such as automatic control rate, stability rate, alarm times, maximum alarm-free time and the like) of the devices of the whole plant can be realized simultaneously, upper management personnel can be helped to know the whole commissioning conditions of the devices of the whole plant in time, and important statistical index data are provided for the adjustment of the process parameters of the teams and groups in the later period.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a schematic view of a plant wide monitoring system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a configuration software module business process according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a plant monitoring system framework according to an embodiment of the present invention.
The numbering of the various blocks in the drawings illustrates: 100-plant monitoring service module; 200-configuration software module; 300-a data communication component; 400-PID workstation accessor; 500-workstation online management module; 600-upper level application system; 101-a whole plant evaluation and analysis module; 102-a computing engine; 103-a task scheduler; 104-plan task unit; 105-a relational database; 106-a data accessor; 107-plant wide monitoring service interface; 201-a packet management unit; 202-node management unit; 203-a rights management unit; 204-configuration management unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the PID plant monitoring system for loop performance evaluation of this embodiment includes a plant monitoring server, a data communication component, and a plurality of PID performance evaluation workstations (PID workstations, labeled PID workstations in the drawing). The plant monitoring server includes a plant monitoring service module 100 and a configuration software module 200. The whole plant monitoring server sends a command request to a specified PID performance evaluation workstation through a data communication component; the designated PID performance evaluation workstation collects relevant data of the controlled device according to the calling request and returns the relevant data to the whole plant monitoring server through the data communication component; and the whole plant monitoring service module analyzes and processes data returned by the PID performance evaluation workstation according to configuration information such as monitoring tasks, evaluation tasks and the like issued by the configuration software module.
The data related to the controlled device comprises at least one of real-time operation information of the controlled device, an evaluation report of the loop or the device, and a statistical report based on the evaluation report of the loop or the device.
The analysis processing of the data returned by the PID performance evaluation workstation comprises at least one of alarm monitoring of the running state of the PID performance evaluation workstation, performance evaluation based on historical data, secondary statistics based on an evaluation report and online diagnosis of a problem loop or a device.
The PID plant monitoring system of the present embodiment includes three PID performance evaluation workstations 1#, 2#, and 3#, and each workstation has a plurality of controlled devices 1#, 2#, m #, and the like. PID performance evaluation software is installed in the PID performance evaluation workstation, and data of the PID performance evaluation software comes from an OPC server; the data platform is a small real-time database built in the PID performance evaluation software and is responsible for providing read-write access service of data to the outside: real-time data of instruments, devices and the like in a loop on equipment are collected and stored in the loop, a workstation analyzes the real-time data and historical data according to the data platform to obtain a result, the result comprises an evaluation report, a statistical report, alarm information and the like of the device, and the information is sent to a monitoring server of the whole plant through a data communication component; and the OPC interface layer is a middle data communication layer between the real-time database and the bottom DCS suite and collects the DCS real-time data to an upper application program end according to an OPC protocol.
And the plant monitoring service module performs plant evaluation and statistics on data returned by the PID performance evaluation workstation, and then stores the calculated result into the background relational database.
The PID plant monitoring system of the embodiment of the present invention further includes a superior application system, and the superior application system 600 may include monitoring terminals such as a large screen monitor, a WEB terminal, a mobile terminal, and an alarm monitor, and is used for displaying and monitoring information such as the operation condition, evaluation, and statistical result of the controlled device of the PID workstation of the plant. For example, the WEB large-screen monitoring terminal shown in fig. 3 may be responsible for performing centralized display on the overall operation conditions, evaluation reports, and results after secondary statistical analysis processing of all devices participating in evaluation below the whole plant, and performing operations such as checking detailed evaluation reports and secondary statistical detailed reports of a single set of devices and their corresponding circuits.
In the plant monitoring system of the embodiment, the data communication component is responsible for reading and sending the data of the PID performance evaluation workstation to the plant monitoring server, and then the plant monitoring server evaluates and counts the sent data of the PID performance evaluation workstation of each sub-plant through the built-in plant monitoring service module, thereby finally realizing the purpose of centralized monitoring of the operation conditions of each operation part device of the plant.
In the plant monitoring system of this embodiment, a node manager is further disposed between the plant monitoring server and the PID performance evaluation workstation, and the node manager is configured to configure a virtual PID node corresponding to the PID performance evaluation workstation of each branch plant or operation section of the plant, and a mapping relationship table between a virtual PID node name and a PID performance evaluation workstation address, and is configured to manage a PID node mapping relationship and perform operations such as online monitoring and data interaction on operation states of the nodes. The configuration software module 200 of the plant monitoring system of the present embodiment includes a grouping management unit 201, a node management unit 202, an authority management unit 203, and a configuration management unit 204. The group management unit 201 is used for configuring the mapping relationship between the PID workstations of each branch plant or each operation part and the PID performance evaluation nodes in the plant monitoring server, and for facilitating management, reconfiguring each node according to the relationship of the operation part, and dividing the PID workstations into corresponding group area nodes according to the relationship. The authority management unit 203 is responsible for operations such as addition, deletion, and modification of the user, and setting information such as access authority, login user name, password, and belonging job part of the user. The node management unit 202 is configured to uniformly configure site access addresses of different PID performance evaluation nodes in packet management and generate a corresponding mapping table. The configuration management unit 204 is used for making and issuing a plant monitoring plan and generating a configuration file.
Fig. 2 is a schematic diagram of a configuration software module service flow according to an embodiment of the present invention. The specific implementation mode is as follows:
1) grouping management and node configuration: according to the operation guide of the configuration software module, developing grouping management work, and creating virtual PID nodes corresponding to the PID performance evaluation workstation, namely PID node 1 and PID node 2 … … PID node n shown in FIG. 2, through the PID performance evaluation node manager according to the hierarchical relationship of each branch plant or operation part of the whole plant; and then, configuring an IP address and a port number of a branch plant PID performance evaluation service for each virtual PID node, binding the just-created virtual PID node with an access connection address of a PID performance evaluation workstation in a specific branch plant operation part, generating a node access mapping table, and finally completing the grouping configuration work of each operation part in the whole plant monitoring.
2) User authority configuration: the super administrator user utilizes the authority management unit in the configuration software module to newly establish an operation administrator user; according to the area range which the operation administrator user is responsible for, the access right of the relevant area is bound for the operation administrator user, such as: the access area comprises three types of areas including a whole plant, a branch plant operation part and a PID workstation. After the configuration is completed, the access right which is just configured can be verified through the test connection function, and whether the access right of the current user is effectively configured or not is judged.
3) After the configuration information is stored and submitted, the grouping management, the access right configuration and the monitoring plan making are completed, the configuration information can be stored in the configuration file through an online submitting tool, the configuration information is issued to a whole plant monitoring service module through calling a configuration interface of the whole plant monitoring service, and the whole plant monitoring service module executes the monitoring plan on a whole plant device according to the configuration information.
The whole plant monitoring server is responsible for carrying out online monitoring, real-time assessment and secondary statistics on the whole operation condition of the whole plant device, and assists management personnel to know the total operation condition of the whole plant device in real time.
The plant monitoring service module 100 mainly comprises: the system comprises a whole plant evaluation and analysis module 101, a calculation engine 102, a task scheduler 103, a planning task unit 104, a relational database 105, a data accessor 106 and the like. The specific principle and plant monitoring system module framework are shown in fig. 3, in which:
after the plant monitoring service is started, a published node is on-line to register an event, after all PID performance evaluation workstation nodes are started, the PID performance evaluation workstation nodes are subscribed and automatically go on-line to a workstation on-line management module 500 of the plant monitoring server to register the node on-line information of the PID performance evaluation workstation, and once the node is on-line successfully, the plant monitoring service module and background services of PID performance evaluation software installed in the PID performance evaluation workstation establish a heartbeat response mechanism to monitor the running state of the current node in real time.
When the node is found to be abnormal, the node manager updates the running state information of the node into an offline state in the relational mapping table and gives an alarm prompt.
When the whole plant monitoring service schedules tasks, the whole plant monitoring service directly jumps to a specified PID performance evaluation workstation server according to the link address corresponding to the node name, and acquires the real-time running state, the evaluation report, the statistical information and the like of the device under the current node from the server.
The plant monitoring service module is responsible for receiving configuration information such as monitoring tasks and evaluation tasks issued by the configuration software module through an internal planning task unit 104, generating corresponding calculation tasks according to task types and pushing the calculation tasks to the task scheduler 103.
The task scheduler 103 provides a computation task packet for the computation engine 102 according to the task execution cycle, and delivers the computation task to the computation engine 102.
The computing engine 102 sends a data access request to the PID workstation in sequence through the data accessor 106, the PID workstation accessor 400, the workstation online management module 500 and the data communication component 300 according to the content of a specific execution task; then, the calculation engine 102 starts periodic performance evaluation and real-time monitoring tasks on the requested PID workstation data by calling the whole plant evaluation and analysis module 101; finally, the result of the calculation is stored in the relational database 105 by the data accessor 106.
The relational database 105 is responsible for storing evaluation and statistics of the plant wide monitoring service. The plant monitoring service interface is responsible for receiving an access request of a superior application system, finding the commissioning information and the evaluation result of the plant device from the relational database 105 and returning the commissioning information and the evaluation result to the superior application system.
The whole plant evaluation and analysis module 101 is mainly responsible for performing alarm monitoring on the operation state of the PID performance evaluation workstations of each operation part of the whole plant, performance evaluation based on historical data, secondary statistics based on evaluation reports and the like.
The PID performance evaluation workstation is responsible for providing real-time commissioning information including running state, automatic control rate, stability rate and the like of a controlled device in the operation part, and the information is mainly used for alarm monitoring; historical data based assessment reports of the circuit or device, which information is later used for online diagnosis to provide judgment basis; and a statistical report of secondary statistical results based on the loop or device evaluation report, for performing statistical analysis on the operation state of the whole plant. The controlled device comprises a plurality of loops, a single loop is evaluated to obtain a loop evaluation report, and then the plurality of loops are coupled to be evaluated at the device level to obtain a device evaluation report. The PID workstation can only provide evaluation and statistical reports of a single-node device, and the plant monitoring server needs to summarize the information and perform secondary statistical analysis processing.
The monitoring method of the plant monitoring system of the embodiment of the invention has the following specific flows:
1) configuration of configuration information: firstly, a super administrator creates a group name of an operation part through a configuration software module, and after the operation is completed, a tree-shaped root node is generated on the configuration software; then, creating a job part node under the root node, setting the name of the job part node and the IP and the port of the PID workstation related to the job part node, and automatically generating an access connection address of the node by the system after successful configuration; then, a user is created, and through an authority management module, a user is created and the setting of a user name, a login password and an access authority is completed; after the operation is finished, the communication states of the newly-built operation part, the user access authority, the PID workstation and the PID workstation node can be tested through the test connection function, and whether the operation process is configured correctly or not is confirmed; and finally, submitting the configuration information to a planning task unit in the plant monitoring service through a submitting operation.
2) And (3) executing tasks: after acquiring the configuration information submitted by the configuration software module, a planning task unit in the plant monitoring service module creates a corresponding type of calculation task according to the task type, such as: monitoring tasks in real time, evaluating tasks based on historical data, secondary counting tasks based on evaluation reports and the like, and delivering the calculation tasks to the task scheduler 103; then, the task scheduler 103 delivers the computation task to the computation engine 102 according to the task execution cycle; the calculation engine 102 sends a data access request to the PID workstation sequentially through the data accessor 106, the PID workstation accessor, the workstation online management module and the data communication component according to the content of a specific execution task; subsequently, the calculation engine 102 performs data analysis on the requested PID workstation data by calling the plant assessment and analysis module 101; finally, the result of the calculation is stored in the relational database 105 by the data accessor 106.
3) And (3) data display: the upper-level application system, including the web terminal, the mobile terminal, the alarm monitoring terminal and other terminals, sequentially passes through the plant monitoring service interface 107, the data accessor 106 and the relational database 105, and displays the monitoring information, evaluation and statistical results of the plant devices on the front-end user interface in real time, so as to finally realize the purpose of centralized monitoring of the operation conditions of all the operation part devices of the plant.
Claims (10)
1. A PID whole plant monitoring system for loop performance evaluation is characterized in that: the system comprises a plant monitoring server and a PID performance evaluation workstation which are connected through a data communication component; the whole plant monitoring server comprises a configuration software module and a whole plant monitoring service module; the whole plant monitoring server is used for sending a command request to the PID performance evaluation workstation through the data communication component; the PID performance evaluation workstation is used for collecting related data of the controlled device according to the request and returning the related data to the whole plant monitoring server through the data communication component; and the whole plant monitoring service module is used for analyzing and processing the data returned by the PID performance evaluation workstation according to the configuration information issued by the configuration software module.
2. The PID plant wide monitoring system of claim 1, wherein: the whole plant monitoring server comprises a superior application system and is used for displaying and monitoring the result of the data returned by the PID performance evaluation workstation after analysis and processing.
3. The PID plant-wide monitoring system of claim 1 or 2, wherein: the configuration information comprises the grouping management and node configuration information of the PID performance evaluation workstation; the whole plant monitoring server comprises a node manager for uniformly managing the online state and the operation information of each node; the configuration software module is provided with a grouping management unit and a node management unit, wherein: the group management unit is used for configuring the mapping relation between the PID performance evaluation workstation and the PID performance evaluation nodes in the whole plant monitoring server through the PID performance evaluation node manager, reconfiguring each node according to the affiliated relation of the operation part, and dividing the PID performance evaluation workstation into corresponding group area nodes according to the affiliated relation; the node management unit is used for uniformly configuring site access addresses of different PID performance evaluation nodes in packet management and generating a corresponding relation mapping table.
4. The PID plant wide monitoring system of claim 1, wherein: the whole plant monitoring service module comprises a planning task unit, a task scheduler, a calculation engine and a whole plant evaluation and analysis module; the planning task unit is used for receiving configuration information issued by the configuration software module, generating a corresponding calculation task and pushing the calculation task to the task scheduler, the task scheduler delivers the calculation task to the calculation engine, and the calculation engine sends a data access request to the PID performance evaluation workstation according to the calculation task and carries out evaluation and processing on the requested PID performance evaluation workstation data by calling the whole plant evaluation and analysis module.
5. The PID plant-wide monitoring system of claim 4, wherein: the system comprises a whole plant monitoring service interface, wherein the whole plant monitoring server is responsible for receiving an access request of a superior application system, and returns a result of analysis processing of data returned by the PID performance evaluation workstation to the superior application system through the whole plant monitoring service interface.
6. The PID plant wide monitoring system of claim 1, wherein: the analysis processing of the data returned by the PID performance evaluation workstation comprises at least one of alarm monitoring of the running state of the PID performance evaluation workstation, performance evaluation based on historical data, secondary statistics based on an evaluation report and online diagnosis of a problem loop or a device.
7. A PID whole plant monitoring method for loop performance evaluation is characterized by comprising the following steps:
the configuration software module of the whole plant monitoring server is responsible for configuring configuration information including a whole plant monitoring plan and sending the configuration information to the whole plant monitoring service module of the whole plant monitoring server, and the whole plant monitoring service module executes the monitoring plan on the whole plant device according to the configuration information;
the whole plant monitoring server sends a command request to the PID performance evaluation workstation through the data communication component;
and the PID performance evaluation workstation is used for collecting related data of the controlled device according to the request and returning the data to the plant monitoring server through the data communication component, and the plant monitoring service module of the plant monitoring server analyzes and processes the data returned by the PID performance evaluation workstation according to the configuration information sent by the configuration software module.
8. The PID plant-wide monitoring method as claimed in claim 7, wherein the configuration information configuration comprises the following steps:
creating virtual PID nodes corresponding to the PID performance evaluation workstations through a PID performance evaluation node manager, configuring an IP address and a port number for each virtual PID node, binding the virtual PID nodes with access connection addresses of the PID performance evaluation workstations, generating a node access mapping table, and completing node configuration of the monitoring device of the whole plant;
setting access authority to the whole plant area range;
making a whole plant monitoring plan;
and storing the configuration information including the grouping, the authority and the monitoring plan into a configuration file.
9. The PID plant-wide monitoring method as claimed in claim 7, wherein the monitoring task execution comprises the steps of:
after acquiring the configuration information submitted by the configuration software module, a planning task unit in the whole plant monitoring service module creates a calculation task according to the task type and delivers the calculation task to a task scheduler;
the task scheduler delivers the calculation tasks to a calculation engine;
the calculation engine sends a data access request to the PID performance evaluation workstation through the data communication component according to the content of a specific execution task, and calls a whole plant evaluation and analysis module after receiving data returned by the PID performance evaluation workstation to analyze and process the requested PID performance evaluation workstation data; and storing the analysis processed result into a relational database through a data accessor.
10. The PID plant-wide monitoring method of claim 9, wherein: and the plant monitoring server displays the result of the analysis processing of the data returned by the PID performance evaluation workstation on the monitoring terminal of the upper-level application system through the plant monitoring service interface.
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