CN114625093A - Process control method and device and industrial control system - Google Patents
Process control method and device and industrial control system Download PDFInfo
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- CN114625093A CN114625093A CN202210304203.4A CN202210304203A CN114625093A CN 114625093 A CN114625093 A CN 114625093A CN 202210304203 A CN202210304203 A CN 202210304203A CN 114625093 A CN114625093 A CN 114625093A
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- G—PHYSICS
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- 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]
- G05B19/4185—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 the network communication
- G05B19/4186—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 the network communication by protocol, e.g. MAP, TOP
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- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
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Abstract
The application relates to a process control method, a device and an industrial control system, wherein the method comprises the following steps: receiving a process flow file with a set data exchange format; the process flow file comprises execution contents of each procedure of the process flow described in a structured data format; traversing and analyzing the process flow file according to the process flow sequence to obtain each process of the process flow and stages contained in the process; wherein the stage comprises executing a set of instructions; sequentially reading execution instructions of each stage of each process, and sending the execution instructions to corresponding control equipment for execution by setting a communication protocol so as to control corresponding equipment parts of the process equipment; wherein the control devices are each connected to at least one device component. According to the technical scheme, the full-automatic execution of the technological process is realized, the complete full-automatic flow control input can be formed, and the control efficiency of the technological equipment is greatly improved.
Description
Technical Field
The present application relates to the field of industrial control technologies, and in particular, to a process control method, an apparatus, and an industrial control system.
Background
In the field of industrial control technology, the control technology adopted by conventional industrial equipment and processing process equipment is generally Logic control through a Programmable Logic Controller (PLC) device, and because state data generated by each equipment component is numerous, each PLC device acquires data of the equipment component to which it belongs to process; such as vacuum coating, vacuum etching and other processes in the vacuum technical field.
The process flow is generally composed of fixed flows, and related process control can only be carried out under the curing parameters supported by a control system, and additional operation control cannot be carried out on the parameters or the flows in the process. Taking vacuum coating equipment as an example, the vacuum coating process flow mainly comprises vacuumizing, heating, premelting, film forming and workpiece taking; wherein, the film forming process is generally operated manually, the parameter control of the film forming process is imported into the control system through a document template (such as an Excel template), the technologist sets the control parameters in the film forming process through the solidified document template, and the control system reads the document template and executes the control. Although the technical scheme can meet the requirements of the conventional coating process, due to the curing mode, process personnel can only control the coating process under the curing parameters supported by the control system, and can not perform finer operation control on more parameters or processes of each process link in the process; and file editing is only set for a film forming link, and complete full-automatic flow control input cannot be carried out.
Therefore, the traditional process equipment control technology is difficult to control the full-automatic flow, and the control efficiency of the process equipment is seriously influenced.
Disclosure of Invention
In view of the above, it is desirable to provide a process control method, an apparatus and an industrial control system for addressing at least one of the above technical drawbacks.
A process control method, comprising:
receiving a process flow file with a set data exchange format; the process flow file comprises execution contents of each procedure of the process flow described in a structured data format;
traversing and analyzing the process flow file according to the process flow sequence to obtain each process of the process flow and stages contained in the process; wherein the stage comprises executing a set of instructions;
sequentially reading the execution instructions of each stage of each process, and sending the execution instructions to corresponding control equipment for execution by setting a communication protocol so as to control corresponding equipment parts of the process equipment; wherein the control devices are each connected to at least one device component.
In one embodiment, the process control method further includes:
acquiring execution contents of each procedure of the process flow;
describing the execution content by a structured data format;
and generating the process flow file according to the execution content.
In one embodiment, the structured data format is a list data structure; wherein,
each list element corresponds to a process;
each process comprises a plurality of stages;
each stage is provided with at least one key value representing an execution instruction or a detection condition, and the key value corresponds to a protocol defined by communication of the control equipment.
In one embodiment, the step of performing traversal analysis on the process flow file according to the process flow sequence to obtain each process and the stages included in the process, includes:
calling an execution process flow through a visual interface, transmitting the process flow file with the set data exchange format to an execution program in a character string manner, converting the character string into a data object through the execution program, and performing traversal analysis;
the step of sequentially reading the execution instructions of each stage of each process, and sending the execution instructions to corresponding control equipment for execution by setting a communication protocol so as to control corresponding equipment parts of the process equipment comprises the following steps:
and acquiring an execution instruction of each stage of each process, converting the execution content into an execution instruction in the control equipment according to the set data exchange format, sending the execution instruction to the corresponding control equipment through a set communication protocol, and controlling the corresponding equipment component to execute operation by the control equipment through an IO interface.
In one embodiment, the process control method further includes:
displaying the execution instructions which are configurable to the process equipment as a configuration selection form;
acquiring at least one process and stage information of each stage thereof input by a user in a form, combining a plurality of stage forms of the process and generating a stage data field;
and dragging and sequencing the processes and each stage thereof by combining a web page dragging mode, and freely combining or overlapping a plurality of edited processes to generate the execution content of each process of the process flow.
In one embodiment, the process control method further includes:
exporting the generated process flow file into a process file with a set format;
the process file can be edited again, the existing process file is imported into a process design platform, the process file is analyzed into data with a set data exchange format through the process design platform and the data is displayed in the process design platform;
and acquiring the editing operation of the process file performed by the user, and recombining to generate a new process file.
In one embodiment, the control device comprises a plurality of mutually independent function module devices; wherein,
each function module device corresponds to a device component for controlling different function types;
and program modules are arranged in each functional module device to carry out objectification encapsulation, and are uniformly called externally in an interface form.
In one embodiment, the process flow comprises: an air extraction process, a baking and heating process, a cleaning process, a film forming process and an air release process;
the set data exchange format is a JSON format;
the set communication protocol is a modbus protocol.
A process control apparatus comprising:
the data interaction unit is used for receiving a process flow file with a set data exchange format; the technical process file comprises execution contents of all procedures of the technical process described in a structured data format;
the data analysis unit is used for traversing and analyzing the process flow file according to the process flow sequence to obtain each process of the process flow and the stage included in the process; wherein the stage comprises executing a set of instructions;
the instruction execution unit is used for sequentially reading execution instructions of each stage of each process, and sending the execution instructions to corresponding control equipment for execution through a set communication protocol so as to control corresponding equipment parts of the process equipment; wherein the control devices are each connected to at least one device component.
An industrial control system, comprising: the system comprises an industrial personal computer and a plurality of control devices, wherein the industrial personal computer is also communicated with a cloud platform through the Internet of things; wherein,
the industrial personal computer is respectively connected with each control device;
each control device respectively corresponds to a plurality of device parts for controlling the process device;
the industrial personal computer and the cloud platform perform data interaction through a process flow file with a set data exchange format;
the industrial personal computer performs data interaction with the control equipment through a set communication protocol;
the industrial personal computer is configured to execute the steps of the process control method.
According to the technical scheme, the process flow file with the set data exchange format is formed through the execution content of each procedure of the process flow described in the structured data format, and the process flow file is traversed and analyzed to obtain each procedure of the process flow and the execution instruction of the stage included in the procedure during process control; the communication protocol is set and is issued to the corresponding control equipment to control the corresponding equipment parts of the process equipment; according to the technical scheme, the full-automatic execution of the technological process is realized, the complete full-automatic flow control input can be formed, and the control efficiency of the technological equipment is greatly improved.
Furthermore, each step of the process flow can be effectively described through a self-defined process data structure, a plurality of process flow modules can be constructed according to the conventional process flow through the structured data format, and parameters related in each process flow module are relatively fixed, so that a default template can be formed, and quick reference and individualized adjustment of partial parameters are facilitated.
Furthermore, protocols of different devices are unified and standardized to an upper layer for calling through a conversion program, so that adaptation of different devices can be realized quickly through configuration files of the conversion program.
Furthermore, a modularized control scheme is adopted, the bus service of the industrial personal computer is used for collaborative unified management, expansion of each functional module can be facilitated, each functional module is concentrated on stability of the functional module, an interface is provided for bus service calling, and upgrading and replacement of the modules are facilitated. And each functional module integrates all controllable instructions and collectable data into bus service, thereby realizing finer-grained, more personalized and more complex control logic and meeting advanced use scenes of coating process personnel.
Furthermore, all controllable parameters can be flexibly combined, modular units can be realized, the process flow is formed by the modular units, the fully-open process flow design is realized, the deep controllability of the process on the process control can be met, the rapid construction of the conventional process flow is met based on the modular reusable thought, and finally the automatic execution of the full flow is realized through the generated process flow file.
Furthermore, a technical scheme for re-editing the process flow file is provided, so that the edited process flow file can be edited again conveniently, and the function of modifying the process flow file is realized.
Drawings
FIG. 1 is a schematic diagram of an exemplary industrial control system architecture;
FIG. 2 is a schematic diagram of a control system for an exemplary vacuum coater;
FIG. 3 is a flowchart of a process control method of an embodiment;
FIG. 4 is a schematic diagram of the structure of a process control apparatus of an embodiment;
fig. 5 is a schematic structural diagram of a vacuum coating control system according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The technical scheme of the application is applied to the process equipment to control each equipment component of the process equipment, and a complete full-automatic flow control function is realized aiming at each link of the process. Based on the technical purpose, the industrial control system is constructed, so that the full-automatic process flow control function is realized through the system; the technical scheme of the application can be applied to the process control flows of various industrial equipment, in particular to a vacuum coating machine, a vacuum etching machine and the like.
Referring to FIG. 1, FIG. 1 is a schematic diagram of an exemplary industrial control system architecture; the system is realized on the basis of an industrial control software architecture and mainly comprises the following steps: the industrial personal computer comprises an industrial personal computer and a plurality of control devices, wherein each control device correspondingly controls at least one device component. For convenience of description of the embodiments, in the following embodiments, a vacuum coater is taken as an example for auxiliary description, and accordingly, the present application provides an example of a control system of a vacuum coater, as shown in fig. 2, fig. 2 is a schematic view of the control system of an example vacuum coater; in this example, the industrial personal computer can also communicate with the cloud platform through the internet of things; the industrial personal computer is respectively connected with each control device; each control device respectively controls a plurality of device components of the vacuum coating machine correspondingly; the industrial personal computer and the cloud platform perform data interaction through a process flow file with a set data exchange format; the industrial personal computer performs data interaction with the control equipment by setting a communication protocol; for convenience of explanation, the set data exchange format in the embodiment of the present application may be a JSON (JavaScript object notation, JS object notation, a lightweight data exchange format) format; the communication protocol may be a modbus (a serial communication protocol) protocol. The industrial personal computer can be configured with an executive program to uniformly carry out executive instructions such as instruction issuing and data acquisition instructions, provides web services and realizes functions including real-time monitoring, process editing, data analysis, remote analysis and the like; furthermore, a friendly and convenient visual interactive design is provided, the process flow in the vacuum coating process is packaged according to modules, the process parameter combination setting function with the finest granularity is provided, the process execution file generated on line runs through the whole coating process flow, and the process is started by one key, so that the full-automatic execution of the coating process is realized.
As an example, the process flow of vacuum coating for the present application may include: air extraction, baking and heating, cleaning, film forming, air discharging and the like.
Examples of the process control method of the present application are set forth below.
The process control method provided by the present application may be applied to the above-mentioned example industrial personal computer, and referring to fig. 3, fig. 3 is a flowchart of the process control method according to an embodiment, and includes:
s110, receiving a process flow file with a set data exchange format; the process flow file includes the execution content of each procedure of the process flow described in the structured data format.
The industrial personal computer can receive the editing operation of a user through the web client to generate a process flow file on line, and the process flow file is sent to an execution program of the industrial personal computer for analysis in a set data exchange format. In addition, the process flow file can also be forwarded through the cloud platform.
As an embodiment, the process flow file adopts a structured data format as a list data structure; wherein each list element corresponds to a process; each process comprises a plurality of stages; each stage is provided with at least one key value representing an execution instruction or a detection condition, and the key value corresponds to a protocol defined by communication of the control equipment.
For example, the JSON format is used to describe the execution content of each process, the process flow is composed of processes, the process is composed of stages, and each stage control/detection instruction set is composed of, as an example, a JSON data structure applied to the vacuum coating process may be as follows:
in the above exemplary process data structure, each List element is a process, the process Name represents a process Name, the process List represents a stage in the process, a process contains multiple stages, the stage Name represents a stage Name in each stage, and other key values represent execution instructions or detection conditions; the process data structure is defined by the communication between the industrial personal computer and the control equipment, for example, the detection condition requirement that the door _ lock _ judge is 1 is set in the door closing waiting stage in the process data structure, that is, the value of the door opening and closing detection amount in the corresponding protocol must be 1; in the air extraction starting stage, when the vacuum degree reaches 0.01Pa, air extraction is performed until the vacuum degree reaches 0.01Pa, and the subsequent stages and processes cannot be performed until the conditions are satisfied.
Through the process data structure of the embodiment, the characteristics of flexible configuration of the JSON key are fully utilized, the JSON key is combined with flexible combination requirements of process procedures, each step of the process flow can be effectively described, a plurality of process flow modules can be constructed according to the conventional process flow by the structured data format, and parameters related in each process flow module are relatively fixed, so that a default template can be formed, and partial parameters can be conveniently and quickly referred and adjusted in a personalized mode.
S120, traversing and analyzing the process flow file according to the process flow sequence to obtain each process of the process flow and stages contained in the process; wherein a stage includes executing a set of instructions, such as control instructions, detection instructions, and the like.
In the technical process, as an embodiment, an execution technical process can be called through a visual interface, a technical process file with a set data exchange format is transmitted to an execution program in a character string mode, the character string is converted into a data object through the execution program, and traversing analysis is carried out.
For example, calling an execution process through a web front-end visual interface, referring JSON structure data to an execution program in a character string mode, converting the JSON character string into a JSON object by the execution program, performing for traversal analysis according to a known data structure, reading a first processName air extraction process in a traversal mode, analyzing a stage Name phase Name in a traversal mode, waiting for door closing, obtaining an execution instruction of a door closing phase of the air extraction process by a door _ lock _ judge JSON key, after the execution instruction of the door closing phase is completed, continuing traversing the next phase of the air extraction process, namely an air extraction starting phase, after the execution instruction of the air extraction starting phase is completed, traversing and analyzing a standby state entering process of the next process until all processes and execution instructions of the phases are traversed and analyzed.
S130, sequentially reading the execution instructions of each stage of each process, and sending the execution instructions to corresponding control equipment for execution by setting a communication protocol so as to control corresponding equipment parts of the process equipment; wherein the control device is connected to at least one device component.
After the traversal analysis in step S120, the execution instructions of each process and each stage thereof are sequentially obtained, the execution content is converted into the execution instruction in the control device according to the set data exchange format, the execution instruction is sent to the corresponding control device through the set communication protocol, and the control device controls the corresponding device component to execute the operation through the IO interface.
As an embodiment, a door closing instruction in the control device can be converted through a JSON key and a corresponding protocol, the door closing instruction protocol is finally sent to the corresponding control device through a set communication protocol, and the control device is closed through an IO control device relay, so that the door closing operation is realized; after the door closing stage is completed, the control device feeds back the completion information, and traverses the execution instruction of the next stage (air extraction starting stage) of the air extraction process through step S120, and executes the execution instruction of the air extraction starting stage … …; and repeating the steps until all subsequent processes and the operation of the stages are completed, and realizing the automatic operation of the process.
When the execution content is converted into the execution instruction in the control equipment, the conversion program corresponds to different execution instructions and functional modules one by one, and the standard escape of the serial port communication protocols of different control equipment is carried out;
for example, the door _ lock _ judge and the coordinating _ vacuum are JSON keys, a protocol corresponding to the door _ lock _ judge communicates with the control device 1, and a protocol packet is 0001.
According to the technical scheme of the embodiment, protocols of different devices are unified and standardized to be called by an upper layer through the conversion program, so that adaptation of the different devices can be quickly realized through configuration files of the conversion program.
In one embodiment, for the control device, a plurality of mutually independent function module devices may be included; as shown in fig. 2, five functional module devices, i.e., a control device 1 to a control device 5, are listed, wherein each functional module device corresponds to a device component for controlling a different function type; each function module device is internally provided with a program module for object packaging and is uniformly called externally in an interface form; on hardware, the control equipment can be realized through a single chip microcomputer and is communicated with an industrial personal computer through a modbus protocol.
Taking a vacuum coating machine as an example, the process control system based on the structure divides equipment components of the vacuum coating machine into a plurality of functional modules through a modularization idea, and each module bears a respective independent control range, for example, the system can be divided into a plurality of functional modules such as vacuum control, motion control, temperature control, ion source control, evaporation control and the like; all the functional modules are controlled by an industrial personal computer in a unified way, and the industrial personal computer controls the brain by using intelligent bus service application, commands the operation of all equipment parts, drives and monitors the execution of the coating process.
According to the technical scheme of the embodiment, a modularized control scheme is adopted, the bus service of the industrial personal computer is used for collaborative unified management, the expansion of each functional module can be facilitated, each functional module is concentrated on the stability of the functional module, an interface is provided for calling the bus service, and the modules can be conveniently upgraded and replaced. And each functional module integrates all controllable instructions and collectable data into bus service, thereby realizing finer-grained, more personalized and more complex control logic and meeting advanced use scenes of coating process personnel.
In order to make the technical solution of the present application clearer, more embodiments are described below.
In an embodiment, the process control method provided by the present application, before the step S110, may further include:
s100, acquiring execution contents of each procedure of the process flow; describing the execution content through a structured data format; the execution content generates a process flow file.
Through convenient interactive design, the execution content is described through a structured data format, the technological process in the technological process is packaged according to modules, the process parameter combination setting function with the finest granularity is provided, the whole technological process can be run through, and the technological process file is generated on line, so that one-key starting can be realized, and the full-automatic execution of the technological control process is realized.
In one embodiment, after the data structure of the execution program is determined, in order to facilitate the intuitive design process flow of a user, a visual process design engine is further provided, and a web technology is adopted to realize free sequencing, combination and editing of processes and various stages and freely generate a required complete process.
Accordingly, the process control method of the present application may further include the steps of:
displaying the execution instructions which are configurable to the process equipment as a configuration selection form; acquiring at least one process and stage information of each stage thereof input by a user in a form, combining a plurality of stage forms of the process and generating a stage data field; and dragging and sequencing the processes and each stage thereof by combining a web page dragging mode, and freely combining or overlapping a plurality of edited processes to generate the execution content of each process of the process flow.
For example, all configurable parameters (such as control instructions, detection instructions and the like in a JSON data structure) are provided for a user to explicitly configure a selection form, such as waiting for door closing, air suction, air discharge, temperature setting of 180 degrees and the like, the user can freely combine to form stages, input generation stage information in a form, combine a plurality of stage forms, generate a stage data section module, wait for door closing and air suction to start combining to form an air suction stage in the JSON data structure, combine the dragging capability in a web page technology to realize the dragging sequencing of the processes and each stage thereof, freely combine or overlap and combine a plurality of edited processes, and finally generate a complete coating process.
In addition, in the process of designing the process flow, the combined process can be changed into a preset template, so that quick multiplexing is realized, for example, the vacuum degree has different requirements for different processes, and the vacuum degree can be adjusted according to actual requirements during use, so that the design of a modular combined process is realized.
According to the technical scheme of the embodiment, all controllable parameters are flexibly combined, the modular units can be realized, the process flow is formed by the modular units, the fully-open process flow design is realized, the deep controllability of the process on coating control can be met, the rapid construction of the conventional process flow is met based on the modular reusable thought, and finally the automatic execution of the full-flow coating is realized through the generated process flow file.
In one embodiment, in the process of designing the process flow, in order to facilitate re-editing the edited process flow file and to implement a function of modifying the process flow file, the embodiment of the present application further provides a technical scheme for re-editing the process flow file.
Accordingly, the process control method of the present application may further include the steps of:
exporting the generated process flow file into a process file with a set format; the process file can be edited again, the existing process file is imported into the process design platform, the process file is analyzed into data with a set data exchange format through the process design platform and the data is displayed in the process design platform; and acquiring the editing operation of the user on the process file, and recombining to generate a new process file.
For example, the designed process flow file is exported to a process file in an excel file format, a user can edit the process file again, the existing process file can be imported into the process design platform, the process file in the excel file format is analyzed into JSON format data through the process design platform and displayed in the process design platform, and the process file is recombined to generate a new process file after being edited again by the user, so that a visual design work interface is finally formed.
An example of a process control apparatus is set forth below.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a process control apparatus according to an embodiment, including:
a data interaction unit 110, configured to receive a process flow file with a set data exchange format; the technical process file comprises execution contents of all procedures of the technical process described in a structured data format;
the data analysis unit 120 is configured to perform traversal analysis on the process flow file according to the process flow sequence, and obtain each procedure of the process flow and a stage included in the procedure; wherein the stage comprises executing a set of instructions;
the instruction execution unit 130 is configured to sequentially read execution instructions of each stage of each process, and send the execution instructions to corresponding control equipment for execution by setting a communication protocol, so as to control corresponding equipment components of the process equipment; wherein the control devices are each connected to at least one device component.
In one embodiment, as shown in fig. 4, the process control apparatus provided herein may further include:
a file generation unit 100 for acquiring execution contents of each process of the process flow; describing the execution content through a structured data format; the execution content generates a process flow file.
The process control apparatus of this embodiment may execute a process control method provided in this embodiment, and its implementation principles are similar, and the actions executed by the modules in the process control apparatus in the embodiments of this application correspond to the steps in the process control method in the embodiments of this application, and for the detailed functional description of the modules in the process control apparatus, reference may be specifically made to the description in the corresponding process control method shown in the foregoing, and details are not repeated here.
The present application also provides a computer device, comprising:
one or more processors;
a memory;
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the one or more processors, the one or more programs configured to: a process control method according to any of the embodiments described above is performed.
The present application further provides a computer readable storage medium having stored thereon at least one instruction, at least one program, set of codes, or set of instructions, which is loaded by the processor and which performs the process control method of any of the above embodiments.
The process control device, the computer device and the computer-readable storage medium of the above embodiments form a process flow file with a set data exchange format according to the execution content of each process of the process flow described in a structured data format, and perform traversal analysis on the process flow file to obtain each process of the process flow and the execution instruction of the stage included in the process during coating control; the communication protocol is set and is issued to the corresponding control equipment to control the corresponding equipment parts of the process equipment; according to the technical scheme, in the process of fully automatically executing the technological process, complete full-automatic flow control input can be formed, and the control efficiency of technological equipment is greatly improved.
Furthermore, through convenient interactive design, the execution content is described through a structured data format, the technological process in the technological process is packaged according to modules, the process parameter combination setting function with the finest granularity is provided, the whole technological process can be run through, and the technological process file is generated on line, so that one-key starting can be realized, and the full-automatic execution of the coating process is realized.
Embodiments of an industrial control system are set forth below.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a vacuum coating control system according to an embodiment, including: the system comprises an industrial personal computer and a plurality of control devices, wherein the industrial personal computer is also communicated with a cloud platform through the Internet of things; the industrial personal computer is respectively connected with each control device; each control device respectively corresponds to a plurality of device parts for controlling the process device; the industrial personal computer and the cloud platform perform data interaction through a process flow file with a set data exchange format; the industrial personal computer performs data interaction with the control equipment through a set communication protocol; the industrial personal computer is configured to execute the steps of the process control method of any one of the embodiments.
As shown in fig. 5, the industrial personal computer may provide web services including real-time monitoring, process editing, data analysis, remote upgrade, and the like, perform internet of things communication with an EMQ Broker program of the cloud platform through an EMQ Edge program, the web services provided by the cloud platform include real-time monitoring, process editing, data analysis, remote upgrade, security authentication, a rule engine, and the like, and meanwhile, the cloud platform further provides a database and a cache middleware function. In addition, the light-operated device is monitored through the light-operated host, the functions of signal acquisition and engine calculation are respectively realized, and relevant light-operated monitoring data are sent to the executive program for processing.
For the functional modules, the functional modules can be divided into a judge module, a motion module, a temperature module, an evaporation deposition module, an ion source module and the like according to the functional division module, each functional module internally completes respective function and provides an interface for other modules to call. The system comprises a manager module, a module program, an electronic control manager module, a main control module and a main control module, wherein the manager module is responsible for performing air suction, vacuum maintaining and air discharging operations on a vacuum chamber, safety closed-loop interlocking logic of bottom equipment and the like, an air suction/discharge function is defined in the module program, operation air suction/discharge control is set, a corresponding interface function is called, an operation parameter (0: close and 1: open) is set by the function, parameter data are sent to the manager module through a modbus serial port protocol, the electronic control manager module receives a control instruction, triggers the internal logic to control the switching sequence of valves of the equipment in the air suction/discharge logic, and adopts an independent program module to perform object packaging and call the equipment in an interface form. The safety closed-loop interlocking logic of the bottom layer equipment is a safety logic function in the module, when the judge module acquires that the water, electricity and gas states of the equipment are not satisfied or are not opened, operations such as air exhaust/air release and the like are not allowed to be executed, and the operations occur so as to achieve the safety closed-loop logic. The operation control module is responsible for controlling the switches of the baffle plate, the correction plate, the crucible and the like in the cavity, if the crucible is called to rotate to the crucible position No. 1, the module program calls the function of rotating the crucible, and the crucible position No. 1 of the parameter is set, and the parameter is setThe instructions are converted into modbus protocol instructions, and the modbus protocol instructions are communicated with an operation control module through a serial port protocol, and the operation control module is provided with a crucible position to control the equipment to operate. The temperature control module is responsible for setting up on-off control such as toasting temperature, high-pressure filament, if set up and toast 1 temperature and be 180 degrees, module procedure calls and sets up and toast 1 temperature function, sets up 180 degrees parameters, converts parameter instruction into modbus protocol instruction, through serial ports protocol and temperature control module communication, temperature control module sets up and toasts 1 temperature and be 180 degrees, carries out controlgear operation. The evaporation module is responsible for coating with equipment control equipment such as crystal control equipment, an electron gun and the like, if needing to coat with SIO2To mix SIO2Sequentially calling program functions in the evaporation deposition module according to the thickness of the film system parameters and the like, converting the film system parameters into modbus protocol instructions, and sending the modbus protocol instructions to evaporation deposition module equipment through a serial port protocol, thereby setting SIO2The film series parameters were successful.
In the industrial control system, the whole process control flow is controlled and completed by a master control program. The coating control flow is set through the visual interface, and the master control program is uniformly scheduled from each module and the data acquisition state through the current equipment, so that more scientific and stable work of each module is realized.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A process control method, comprising:
receiving a process flow file with a set data exchange format; the technical process file comprises execution contents of all procedures of the technical process described in a structured data format;
traversing and analyzing the process flow file according to the process flow sequence to obtain each process of the process flow and stages contained in the process; wherein the stage comprises executing a set of instructions;
sequentially reading execution instructions of each stage of each process, and sending the execution instructions to corresponding control equipment for execution by setting a communication protocol so as to control corresponding equipment parts of the process equipment; wherein the control devices are each connected to at least one device component.
2. The process control method of claim 1, further comprising:
acquiring execution contents of each procedure of the process flow;
describing the execution content by a structured data format;
and generating the process flow file according to the execution content.
3. The process control method of claim 1, wherein the structured data format is a list data structure; wherein,
each list element corresponds to a process;
each process comprises a plurality of stages;
each stage is provided with at least one key value representing an execution instruction or a detection condition corresponding to a protocol defined by communication of the control equipment.
4. The process control method according to claim 1, wherein the step of performing traversal analysis on the process flow file according to the process flow sequence to obtain each process and the stage included in the process comprises:
calling an execution process flow through a visual interface, transmitting the process flow file with the set data exchange format to an execution program in a character string manner, converting the character string into a data object through the execution program, and performing traversal analysis;
the step of sequentially reading the execution instructions of each stage of each process, and sending the execution instructions to corresponding control equipment for execution by setting a communication protocol so as to control corresponding equipment parts of the process equipment comprises the following steps:
and acquiring an execution instruction of each stage of each process, converting the execution content into an execution instruction in the control equipment according to the set data exchange format, sending the execution instruction to the corresponding control equipment through a set communication protocol, and controlling the corresponding equipment component to execute the operation by the control equipment through an IO interface.
5. The process control method of claim 1, further comprising:
displaying the execution instructions which are configurable to the process equipment as a configuration selection form;
acquiring at least one process and stage information of each stage thereof input by a user in a form, combining a plurality of stage forms of the process and generating a stage data field;
and dragging and sequencing the processes and each stage thereof by combining a web page dragging mode, and freely combining or overlapping a plurality of edited processes to generate the execution content of each process of the process flow.
6. The process control method of claim 1, further comprising:
exporting the generated process flow file into a process file with a set format;
the process file can be edited again, the existing process file is imported into a process design platform, the process file is analyzed into data with a set data exchange format through the process design platform and the data is displayed in the process design platform;
and acquiring the editing operation of the process file performed by the user, and recombining to generate a new process file.
7. The process control method according to claim 1, wherein the control device comprises a plurality of mutually independent function module devices; wherein,
each function module device corresponds to a device component for controlling different function types;
and program modules are arranged in each functional module device to carry out objectification encapsulation, and are uniformly called externally in an interface form.
8. The process control method according to claim 1, wherein the set data exchange format is a JSON format; the set communication protocol is a modbus protocol.
9. A process control apparatus, comprising:
the data interaction unit is used for receiving a process flow file with a set data exchange format; the process flow file comprises execution contents of each procedure of the process flow described in a structured data format;
the data analysis unit is used for traversing and analyzing the process flow file according to the process flow sequence to obtain each process of the process flow and stages contained in the process; wherein the stage comprises executing a set of instructions;
the instruction execution unit is used for sequentially reading execution instructions of each stage of each process, and sending the execution instructions to corresponding control equipment for execution through a set communication protocol so as to control corresponding equipment parts of the process equipment; wherein the control devices are each connected to at least one device component.
10. An industrial control system, comprising: the system comprises an industrial personal computer and a plurality of control devices, wherein the industrial personal computer is also communicated with a cloud platform through the Internet of things; wherein,
the industrial personal computer is respectively connected with each control device;
each control device respectively corresponds to a plurality of device parts for controlling the process device;
the industrial personal computer and the cloud platform perform data interaction through a process flow file with a set data exchange format;
the industrial personal computer performs data interaction with the control equipment through a set communication protocol;
the industrial personal computer is configured to perform the steps of the process control method of any one of claims 1-8.
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| CN202210304203.4A CN114625093B (en) | 2022-03-25 | 2022-03-25 | Process control method, device and industrial control system |
| PCT/CN2022/116630 WO2023178926A1 (en) | 2022-03-25 | 2022-09-01 | Process control method and apparatus, and industrial control system |
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| CN114625093B (en) | 2023-05-02 |
| WO2023178926A1 (en) | 2023-09-28 |
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