CN111176246B - Remote simulation method and system for distributed control system - Google Patents
Remote simulation method and system for distributed control system Download PDFInfo
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- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41885—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by modeling, simulation of the manufacturing system
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The application discloses a remote simulation method of a distributed control system, which comprises the following steps: connecting a distributed control system; receiving a connection request sent by a remote monitoring station, and sending the project file to the remote monitoring station; receiving a remote simulation request sent by a remote monitoring station, and forwarding the remote simulation request to a distributed control system; the processing result is received and forwarded to the remote monitoring station. According to the method and the device, the engineering file is sent to the remote monitoring station, so that the remote monitoring station outputs the corresponding operation interface of the distributed control system, a user can input a corresponding remote simulation request on the operation interface, finally, the remote simulation request is forwarded to the distributed control system to be processed, the processing result is forwarded to the remote monitoring station, and then remote simulation of the distributed control system is achieved. The application also provides a distributed control system remote simulation system and a remote simulation server, and the distributed control system remote simulation system and the remote simulation server have the beneficial effects.
Description
Technical Field
The present application relates to the field of remote simulation of distributed control systems, and in particular, to a method and a system for remote simulation of a distributed control system, and a remote simulation server.
Background
Distributed Control Systems (DCS) have the advantages of centralized management and decentralized Control, and are widely used in the industries of electric power, metallurgy, petrochemical industry, and the like. The DCS simulation system is used for simulating an on-site DCS, is mainly used for control scheme design, control strategy verification, demonstration and learning training, generally operates in a local area network environment of each factory, and cannot remotely access the simulation system.
As the scale of a factory is increased, the use of the DCS simulation system is more and more frequent, and due to the influence of geographical locations, time factors and other reasons, great inconvenience is brought to users when the DCS simulation system is used on site, so that the demand of the users on the remote access to the simulation system by using a computer network is increased.
Therefore, how to implement remote simulation of a distributed control system is a technical problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
The application aims to provide a remote simulation method and system of a distributed control system and a remote simulation server, which are used for realizing remote simulation of the distributed control system.
In order to solve the above technical problem, the present application provides a method for remote simulation of a distributed control system, including:
connecting a distributed control system;
receiving a connection request sent by a remote monitoring station, and sending an engineering file to the remote monitoring station so that the remote monitoring station outputs a corresponding distributed control system operation interface;
receiving a remote simulation request sent by the remote monitoring station, and forwarding the remote simulation request to the distributed control system, so that the distributed control system processes the remote simulation request and returns a processing result;
receiving the processing result and forwarding the processing result to the remote monitoring station.
Optionally, the connection distributed control system includes:
and respectively establishing connection with the simulation distributed control system and the field distributed control system.
Optionally, the receiving a remote simulation request sent by a remote monitoring station, and forwarding the remote simulation request to the distributed control system, so that the distributed control system processes the remote simulation request and returns a processing result, where the receiving includes:
determining a type of the remote simulation request;
when the type of the remote simulation request is off-line simulation, forwarding the remote simulation request to the simulation distributed control system so that the simulation distributed control system processes the remote simulation request and returns an off-line processing result;
and receiving the offline processing result and forwarding the offline processing result to the remote monitoring station.
Optionally, the receiving a remote simulation request sent by a remote monitoring station, and forwarding the remote simulation request to the distributed control system, so that the distributed control system processes the remote simulation request and returns a processing result, where the receiving includes:
determining a type of the remote simulation request;
when the type of the remote simulation request is online simulation, forwarding the remote simulation request to the field distributed control system so that the field distributed control system processes the remote simulation request and returns an online processing result;
and receiving the online processing result and forwarding the online processing result to the remote monitoring station.
Optionally, when the remote simulation request is a query request, forwarding the remote simulation request to the distributed control system, so that the distributed control system processes the remote simulation request, including:
analyzing the remote simulation request to obtain an ID to be queried;
determining corresponding point item information according to the ID to be inquired;
and sending the point item information to a simulation distributed control system so that the simulation distributed control system queries according to the point item information.
Optionally, after receiving the processing result and forwarding the processing result to the remote monitoring station, the method further includes:
establishing a corresponding relation between the processing result and the point item information, and storing the corresponding relation into a cache pool;
and when the same point item information is received again, searching the corresponding processing result from the cache pool and returning the processing result to the remote monitoring station.
Optionally, the method further includes:
acquiring the query heat of each point item information in the cache pool;
and deleting the point item information of which the query heat is lower than a threshold value from the cache pool.
Optionally, the method further includes:
when an alarm query request sent by the remote monitoring station is received, determining corresponding alarm data according to the alarm query request;
and compressing the alarm data to obtain compressed data, and sending the compressed data to the remote monitoring station, so that the remote monitoring station decompresses the compressed data and displays the obtained alarm data.
The present application further provides a system for remote simulation of a distributed control system, the system comprising:
the connection module is used for connecting the distributed control system;
the system comprises a first receiving module, a second receiving module and a control module, wherein the first receiving module is used for receiving a connection request sent by a remote monitoring station and sending an engineering file to the remote monitoring station so that the remote monitoring station outputs a corresponding distributed control system operation interface;
the remote simulation processing module is used for receiving a remote simulation request sent by a remote monitoring station, forwarding the remote simulation request to the distributed control system, so that the distributed control system processes the remote simulation request and returns a processing result;
and the second receiving module is used for receiving the processing result and forwarding the processing result to the remote monitoring station.
The present application further provides a remote simulation server, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the method for remote simulation of a distributed control system as described in any one of the above when executing the computer program.
The application provides a remote simulation method of a distributed control system, which comprises the following steps: connecting a distributed control system; receiving a connection request sent by a remote monitoring station, and sending an engineering file to the remote monitoring station so that the remote monitoring station outputs a corresponding distributed control system operation interface; receiving a remote simulation request sent by a remote monitoring station, and forwarding the remote simulation request to a distributed control system so that the distributed control system processes the remote simulation request and returns a processing result; the processing result is received and forwarded to the remote monitoring station.
According to the technical scheme, the connection with the remote monitoring station and the distributed control system is respectively established, the engineering file is sent to the remote monitoring station, so that the remote monitoring station outputs the corresponding operation interface of the distributed control system, a user can input a corresponding remote simulation request on the operation interface, finally the remote simulation request is forwarded to the distributed control system for processing, the processing result is forwarded to the remote monitoring station, and the remote simulation of the distributed control system is further achieved. The application also provides a system, equipment and a readable storage medium for remote simulation of the distributed control system, which have the beneficial effects and are not repeated herein.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a method for remote simulation of a distributed control system according to an embodiment of the present application;
FIG. 2 is a flow chart of an actual representation of S103 in the method for remote simulation of a distributed control system provided in FIG. 1;
FIG. 3 is a schematic diagram of a remote simulation network model according to an embodiment of the present application;
fig. 4 is a flow chart of remote simulation provided in an embodiment of the present application;
fig. 5 is a structural diagram of a system for remote simulation of a distributed control system according to an embodiment of the present application;
FIG. 6 is a block diagram of another remote simulation system for a distributed control system according to an embodiment of the present disclosure;
fig. 7 is a structural diagram of a remote simulation server according to an embodiment of the present application.
Detailed Description
The core of the application is to provide a remote simulation method and system of a distributed control system and a remote simulation server, which are used for realizing remote simulation of the distributed control system.
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but 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 application.
Referring to fig. 1, fig. 1 is a flowchart of a remote simulation method of a distributed control system according to an embodiment of the present disclosure.
The method specifically comprises the following steps:
s101: connecting a distributed control system;
along with the continuous increase of the scale of a factory, the DCS simulation system is used more and more frequently, and due to the influences of geographical positions, time factors and other reasons, great inconvenience is brought to users when the DCS simulation system is used on site, so that the requirements of the users for remotely accessing the simulation system by using a computer network are continuously increased; the application provides a remote simulation method of a distributed control system, which is used for realizing remote simulation of the distributed control system;
alternatively, the connection distributed control system mentioned here may be configured to establish a connection with the simulation distributed control system;
further, since the DCS simulation system uses offline data during simulation, and the offline data and the actual field data have a deviation, to solve the problem, the connection distributed control system mentioned herein may specifically be:
respectively establishing connection with the simulation distributed control system and the field distributed control system;
the simulation distributed control system is a simulation system of the distributed control system, and the simulation distributed control system can be used for aspects such as control scheme design, control strategy verification, demonstration, learning and training and the like;
the method and the system can acquire actual field data through the field distributed control system to perform online simulation, observe and analyze the field data, greatly improve the accuracy of a simulation result, do not need to operate in a field environment, and ensure the safety of the field environment.
S102: receiving a connection request sent by a remote monitoring station, and sending an engineering file to the remote monitoring station so that the remote monitoring station outputs a corresponding distributed control system operation interface;
the remote monitoring station is used for providing an operation interface for a user outside a network where the DCS system is located, so that the user can operate and view DCS related data and output a corresponding remote simulation request;
in one embodiment, the remote monitoring station may be capable of:
the operation interface is similar to the interface of the local DCS, so that the user is basically not different from the local operation in the remote use process, and the user friendliness is improved;
the method supports the switching between an online simulation type and an offline simulation type, and supports the switching between simulation groups;
and the authority limit of different users is supported, and the system safety is ensured.
S103: receiving a remote simulation request sent by a remote monitoring station, and forwarding the remote simulation request to a distributed control system so that the distributed control system processes the remote simulation request and returns a processing result;
preferably, the receiving of the remote simulation request sent by the remote monitoring station and forwarding the remote simulation request to the distributed control system, so that the distributed control system processes the remote simulation request and returns a processing result, which may specifically be:
determining the type of the remote simulation request;
when the type of the remote simulation request is off-line simulation, forwarding the remote simulation request to the simulation distributed control system so that the simulation distributed control system processes the remote simulation request and returns an off-line processing result;
receiving an off-line processing result and forwarding the off-line processing result to a remote monitoring station;
based on the embodiment, when the type of the remote simulation request is the off-line simulation, the remote simulation request is forwarded to the simulation distributed control system, so that the simulation distributed control system processes the remote simulation request, and forwards the returned off-line processing result to the remote monitoring station, thereby completing the off-line simulation operation, further not needing to obtain actual field data, and improving the efficiency of the simulation operation.
Preferably, the receiving of the remote simulation request sent by the remote monitoring station and forwarding the remote simulation request to the distributed control system, so that the distributed control system processes the remote simulation request and returns a processing result, which may specifically be:
determining the type of the remote simulation request;
when the type of the remote simulation request is online simulation, forwarding the remote simulation request to the field distributed control system so that the field distributed control system processes the remote simulation request and returns an online processing result;
receiving an online processing result and forwarding the online processing result to a remote monitoring station;
based on the embodiment, when the type of the remote simulation request is online simulation, the remote simulation request is forwarded to the field distributed control system, so that the field distributed control system processes the remote simulation request, and forwards the returned online processing result to the remote monitoring station, so that the online simulation operation is completed.
S104: the processing result is received and forwarded to the remote monitoring station.
After receiving the processing result returned by the distributed control system, the processing result is forwarded to the remote monitoring station, so that the remote monitoring station outputs the processing result, and the remote simulation operation is completed.
Preferably, the method may further comprise:
when an alarm query request sent by a remote monitoring station is received, determining corresponding alarm data according to the alarm query request;
compressing the alarm data to obtain compressed data, and sending the compressed data to the remote monitoring station, so that the remote monitoring station decompresses the compressed data and displays the obtained alarm data;
when the remote monitoring station is switched to an alarm interface, alarm query operation is triggered, at the moment, the remote simulation server can return alarm data with very large data volume, and the alarm can be queried all the time, so that the returned alarm data are compressed, and the network load is further greatly reduced.
Based on the technical scheme, the method for remote simulation of the distributed control system provided by the application is characterized in that connection is respectively established with the remote monitoring station and the distributed control system, and the engineering file is sent to the remote monitoring station, so that the remote monitoring station outputs a corresponding distributed control system operation interface, a user can input a corresponding remote simulation request on the operation interface, finally the remote simulation request is forwarded to the distributed control system for processing, a processing result is forwarded to the remote monitoring station, and remote simulation of the distributed control system is further realized.
The remote access request generally includes a query request and a modification request, and when the remote emulation request is a query request, the remote emulation request is forwarded to the distributed control system in step S103 in the previous embodiment, so that the distributed control system processes the remote emulation request, which may also be specifically implemented by executing the steps shown in fig. 2, which is described below with reference to fig. 2.
Referring to fig. 2, fig. 2 is a flowchart illustrating an actual representation manner of S103 in the method for remote simulation of a distributed control system provided in fig. 1.
The method specifically comprises the following steps:
s201: analyzing the remote simulation request to obtain an ID to be queried;
s202: determining corresponding point item information according to the ID to be inquired;
the point item information mentioned here is the point name and the item name in the distributed control system, and the distributed control system performs corresponding operation according to the point name and the item name.
S203: and sending the point item information to the simulation distributed control system so that the simulation distributed control system can inquire according to the point item information.
When the remote simulation server executes the query operation sent by the remote monitoring station, a large number of point item queries are carried out, and most of the query operations are periodic operations, so the point names and the item names are repeated many times during query. Therefore, the corresponding relation between the point item information and the ID is established in advance, so that the remote monitoring station only sends the corresponding ID to the remote simulation server when sending the query operation, and the server determines the point item information according to the ID after receiving the ID and then carries out the query operation.
Preferably, after receiving the processing result and forwarding the processing result to the remote monitoring station, the following steps can be further performed:
establishing a corresponding relation between the processing result and the point item information, and storing the corresponding relation into a cache pool;
when the same point item information is received again, the corresponding processing result is searched from the cache pool and returned to the remote monitoring station.
When the number of the remote monitoring stations is large, a large number of repeated point item query requests are sent to the remote simulation server, so that the remote simulation server can repeatedly request the DCS system, and the load of the remote simulation server and the DCS system is seriously influenced. Therefore, the remote simulation server establishes the corresponding relation between the query result and the point information and stores the corresponding relation into the cache pool after the first point query by establishing the cache pool in the remote simulation server, and directly returns the result to the ROSS monitoring station from the cache pool when the same query is received later, so that repeated requests to the DCS are avoided.
Preferably, in order to ensure the real-time performance and accuracy of the point item information in the cache pool, all the point item information in the cache pool can be inquired from the DCS system at regular time, and then the cache pool is updated according to the inquiry result.
Preferably, to save the storage space of the cache pool, the following steps may be further performed:
acquiring the query heat of each point item information in a cache pool;
and deleting the point item information with the query heat degree lower than the threshold value from the cache pool.
An application embodiment provided by the present application is introduced below, please refer to fig. 3, and fig. 3 is a schematic diagram of a remote simulation network model provided by the embodiment of the present application, where the system is composed of a remote simulation server and a remote monitoring station, the remote simulation server is responsible for acquiring data from a field DCS or a simulation DCS, and the remote monitoring station is responsible for acquiring data from the remote simulation server for interface display, and implementing remote and online simulation functions through data interaction between networks.
As shown in fig. 3, the remote simulation server is the core of the network model, and it connects the simulation DCS network, the field DCS network and the remote monitoring station network, and mainly functions to exchange data between networks, and has the following functions:
(1) the method supports connecting a plurality of remote monitoring stations and supports simultaneous operation of different users;
(2) the method supports the connection of a plurality of DCS simulation groups and can simultaneously communicate;
(3) the data can be communicated in two directions by interacting with the simulation DCS data, so that the data can be written to the simulation DCS by receiving a control instruction of the remote monitoring station, and the data of the simulation DCS can be read and transmitted to the remote monitoring station;
(4) the data exchange with the field DCS is realized, the data are communicated in a one-way mode, data cannot be written into the field DCS, and only the field data can be read and transmitted to the remote monitoring station;
(5) in order to reduce network load, part of data between the server and the DCS supports caching and compression;
(6) data transmission between the server and the monitoring station supports encryption, and data security of an external network is guaranteed.
The remote monitoring station mainly provides an operation interface for a user outside a network where the DCS system is located, so that the user can operate and view the relevant data of the DCS, and the remote monitoring station has the following functions:
the operation interface is similar to the interface of the local DCS, and the user has no difference with the local operation basically when in remote use;
the method supports the switching between online simulation and offline simulation, and supports the switching between simulation groups;
and the authority limit of different users is supported, and the system safety is ensured.
Referring to fig. 4, fig. 4 is a remote simulation flowchart provided in the embodiment of the present application, and as shown in fig. 4, the remote simulation flowchart may include the following steps:
(1) after the remote simulation server is started, initializing, and connecting the simulation DCS and the field DCS;
(2) the simulation DCS and the field DCS return the relevant information of the project;
(3) a user is connected with a remote simulation server through a remote monitoring station, and can select an online simulation mode or an offline simulation mode;
(4) selecting an off-line simulation mode, connecting a remote simulation server, and downloading the DCS project after the connection is successful;
(5) the user operates on the interface of the remote monitoring station, and sends a request for inquiring data (or writing data) to the server;
(6) the remote simulation server forwards the request to the simulation DCS, and the request message is processed by the remote simulation server;
(7) the simulation DCS returns the query result to the remote simulation server, and the remote simulation server forwards the query result to the monitoring station;
(8) the user selects to switch to online simulation;
(9) operating on the remote monitoring station interface, and sending a request for inquiring data to a server;
(10) the remote simulation server forwards the request to the field DCS, and the actual request message is processed by the remote simulation server;
(11) and the on-site DCS returns the query result to the remote simulation server, and the query result is forwarded to the monitoring station by the server.
Referring to fig. 5, fig. 5 is a structural diagram of a system for remote simulation of a distributed control system according to an embodiment of the present application.
The system may include:
a connection module 100 for connecting a distributed control system;
the first receiving module 200 is configured to receive a connection request sent by a remote monitoring station, and send an engineering file to the remote monitoring station, so that the remote monitoring station outputs a corresponding distributed control system operation interface;
the remote simulation processing module 300 is configured to receive a remote simulation request sent by a remote monitoring station, and forward the remote simulation request to the distributed control system, so that the distributed control system processes the remote simulation request and returns a processing result;
a second receiving module 400, configured to receive the processing result and forward the processing result to the remote monitoring station.
Referring to fig. 6, fig. 6 is a structural diagram of another remote simulation system of a distributed control system according to an embodiment of the present application.
The connection module 100 may include:
and the connection submodule is used for establishing connection with the simulation distributed control system and the field distributed control system respectively.
The remote simulation processing module 300 may include:
the first determining submodule is used for determining the type of the remote simulation request;
the first forwarding sub-module is used for forwarding the remote simulation request to the simulation distributed control system when the type of the remote simulation request is offline simulation, so that the simulation distributed control system processes the remote simulation request and returns an offline processing result;
and the first receiving submodule is used for receiving the offline processing result and forwarding the offline processing result to the remote monitoring station.
The remote simulation processing module 300 may include:
the second determining submodule is used for determining the type of the remote simulation request;
the second forwarding sub-module is used for forwarding the remote simulation request to the field distributed control system when the type of the remote simulation request is online simulation, so that the field distributed control system processes the remote simulation request and returns an online processing result;
and the second receiving submodule is used for receiving the online processing result and forwarding the online processing result to the remote monitoring station.
The remote simulation processing module 300 may include:
the analysis submodule is used for analyzing the remote simulation request to obtain the ID to be inquired;
the third determining submodule is used for determining corresponding point item information according to the ID to be inquired; the point item information is a point name and an item name in the distributed control system;
and the sending submodule is used for sending the point item information to the simulation distributed control system so that the simulation distributed control system can inquire according to the point item information.
The system may further comprise:
the establishing module is used for establishing a corresponding relation between the processing result and the point item information after receiving the processing result and forwarding the processing result to the remote monitoring station, and storing the corresponding relation into a cache pool;
and the searching module is used for searching the corresponding processing result from the cache pool and returning the processing result to the remote monitoring station when the same point item information is received again.
The system may further comprise:
the acquisition module is used for acquiring the query heat of each point item information in the cache pool;
and the deleting module is used for deleting the point item information with the query heat lower than the threshold from the cache pool.
The system may further comprise:
the third receiving module is used for determining corresponding alarm data according to the alarm query request when receiving the alarm query request sent by the remote monitoring station;
and the compression module is used for compressing the alarm data to obtain compressed data and sending the compressed data to the remote monitoring station so that the remote monitoring station decompresses the compressed data and displays the obtained alarm data.
Since the embodiment of the system part corresponds to the embodiment of the method part, the embodiment of the system part is described with reference to the embodiment of the method part, and is not repeated here.
Referring to fig. 7, fig. 7 is a structural diagram of a remote simulation server according to an embodiment of the present application.
The remote simulation server 700 may vary significantly depending on configuration or performance, and may include one or more processors (CPUs) 722 (e.g., one or more processors) and memory 732, one or more storage media 730 (e.g., one or more mass storage devices) storing applications 742 or data 744. Memory 732 and storage medium 730 may be, among other things, transient storage or persistent storage. The program stored in the storage medium 730 may include one or more modules (not shown), each of which may include a sequence of instruction operations for the device. Still further, processor 722 may be configured to communicate with storage medium 730 to execute a series of instruction operations in storage medium 730 on remote emulation server 700.
The remote emulation server 700 may also include one or more power supplies 727, one or more wired or wireless network interfaces 750, one or more input-output interfaces 758, and/or one or more operating systems 741, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, and so forth.
The steps in the method for remote simulation of the distributed control system described in fig. 1 to 4 are implemented by the remote simulation server based on the structure shown in fig. 7.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the module described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus, device and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules is merely a division of logical functions, and an actual implementation may have another division, for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
Modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present application may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a function calling device, or a network device) to execute all or part of the steps of the method of the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
The method, the system and the remote simulation server for remote simulation of the distributed control system provided by the application are introduced in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (8)
1. A method for remote simulation of a distributed control system is characterized by comprising the following steps:
respectively establishing connection with the simulation distributed control system and the field distributed control system;
receiving a connection request sent by a remote monitoring station, and sending an engineering file to the remote monitoring station so that the remote monitoring station outputs a corresponding distributed control system operation interface;
receiving a remote simulation request sent by the remote monitoring station, and forwarding the remote simulation request to the distributed control system, so that the distributed control system processes the remote simulation request and returns a processing result;
receiving the processing result and forwarding the processing result to the remote monitoring station;
the receiving a remote simulation request sent by a remote monitoring station and forwarding the remote simulation request to the distributed control system, so that the distributed control system processes the remote simulation request and returns a processing result, includes:
determining a type of the remote simulation request;
when the type of the remote simulation request is online simulation, forwarding the remote simulation request to the field distributed control system so that the field distributed control system processes the remote simulation request and returns an online processing result;
and receiving the online processing result and forwarding the online processing result to the remote monitoring station.
2. The method of claim 1, wherein receiving a remote simulation request sent by a remote monitoring station and forwarding the remote simulation request to the distributed control system to cause the distributed control system to process the remote simulation request and return a processing result comprises:
determining a type of the remote simulation request;
when the type of the remote simulation request is off-line simulation, forwarding the remote simulation request to the simulation distributed control system so that the simulation distributed control system processes the remote simulation request and returns an off-line processing result;
and receiving the offline processing result and forwarding the offline processing result to the remote monitoring station.
3. The method of claim 1, wherein forwarding the remote simulation request to the distributed control system when the remote simulation request is a query request to cause the distributed control system to process the remote simulation request comprises:
analyzing the remote simulation request to obtain an ID to be queried;
determining corresponding point item information according to the ID to be inquired; the point item information is a point name and an item name in the distributed control system;
and sending the point item information to a simulation distributed control system so that the simulation distributed control system queries according to the point item information.
4. The method of claim 3, further comprising, after receiving the processing result and forwarding the processing result to the remote monitoring station:
establishing a corresponding relation between the processing result and the point item information, and storing the corresponding relation into a cache pool;
and when the same point item information is received again, searching the corresponding processing result from the cache pool and returning the processing result to the remote monitoring station.
5. The method of claim 4, further comprising:
acquiring the query heat of each point item information in the cache pool;
and deleting the point item information of which the query heat is lower than a threshold value from the cache pool.
6. The method of claim 1, further comprising:
when an alarm query request sent by the remote monitoring station is received, determining corresponding alarm data according to the alarm query request;
and compressing the alarm data to obtain compressed data, and sending the compressed data to the remote monitoring station, so that the remote monitoring station decompresses the compressed data and displays the obtained alarm data.
7. A system for remote simulation of a distributed control system, comprising:
the connection module is used for establishing connection with the simulation distributed control system and the field distributed control system respectively;
the system comprises a first receiving module, a second receiving module and a control module, wherein the first receiving module is used for receiving a connection request sent by a remote monitoring station and sending an engineering file to the remote monitoring station so that the remote monitoring station outputs a corresponding distributed control system operation interface;
the remote simulation processing module is used for receiving a remote simulation request sent by the remote monitoring station and forwarding the remote simulation request to the distributed control system so that the distributed control system processes the remote simulation request and returns a processing result;
a second receiving module, configured to receive the processing result and forward the processing result to the remote monitoring station;
wherein the remote simulation processing module comprises:
the second determining submodule is used for determining the type of the remote simulation request;
the second forwarding sub-module is used for forwarding the remote simulation request to the field distributed control system when the type of the remote simulation request is online simulation, so that the field distributed control system processes the remote simulation request and returns an online processing result;
and the second receiving submodule is used for receiving the online processing result and forwarding the online processing result to the remote monitoring station.
8. A remote emulation server, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the method of remote simulation of a distributed control system according to any of claims 1 to 6 when executing said computer program.
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