CN114625093B - Process control method, device and industrial control system - Google Patents
Process control method, device and industrial control system Download PDFInfo
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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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- 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
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32252—Scheduling production, machining, job shop
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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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 relates to a process control method, a process control device and an industrial control system, wherein the process control method comprises the following steps: receiving a process flow file for setting a data exchange format; wherein the process flow file comprises execution content 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 working procedure of the process flow and the stage included in the working procedure; wherein the stage comprises executing a set of instructions; sequentially reading execution instructions of each stage of each procedure, and sending the execution instructions to corresponding control equipment for execution through setting a communication protocol so as to control corresponding equipment components of the process equipment; wherein the control devices are respectively connected with at least one device component. According to the technical scheme, the full-automatic execution of the process is realized, the complete full-automatic flow control input can be formed, and the control efficiency of the process equipment is greatly improved.
Description
Technical Field
The application relates to the technical field of industrial control, in particular to a process control method, a process control device and an industrial control system.
Background
In the technical field of industrial control, the control technology adopted by traditional industrial equipment and processing technology equipment is generally that logic control is carried out by PLC (Programmable Logic Controller ) equipment, and because of various state data generated by all equipment components, all PLC equipment collects the data of the equipment components to be processed; such as vacuum coating, vacuum etching and other processes in the vacuum technical field.
For a process flow, which is generally composed of a fixed flow, the related process control can only be performed under the curing parameters supported by the control system, and additional operation control cannot be performed on the parameters or the flow 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; the parameters of the film forming process are generally controlled by manual operation before and after film forming, and are led into a control system through a document template (such as an Excel template), and a craftsman sets the control parameters of the film forming process through the solidified document template, and the control system reads the document template and then executes the control. Although the technical scheme can meet the requirements of the conventional coating process, due to the curing mode, the process personnel can only control the coating process under the curing parameters supported by the control system, and finer operation control on more parameters or flows of each process link in the process can not be performed; and the file editing is only aimed at setting a film forming link, and complete full-automatic flow control input cannot be performed.
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 affected.
Disclosure of Invention
Based on this, it is necessary to provide a process control method, apparatus and industrial control system aiming at least one of the above technical drawbacks.
A process control method comprising:
receiving a process flow file for setting a data exchange format; wherein the process flow file comprises execution content 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 working procedure of the process flow and the stage included in the working procedure; wherein the stage comprises executing a set of instructions;
sequentially reading execution instructions of each stage of each procedure, and sending the execution instructions to corresponding control equipment for execution through setting a communication protocol so as to control corresponding equipment components of the process equipment; wherein the control devices are respectively connected with at least one device component.
In one embodiment, the process control method further comprises:
acquiring execution content of each procedure of the process flow;
describing the execution content through 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 procedure;
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 the communication of the control device.
In one embodiment, performing traversal analysis on the process flow file according to the process flow sequence to obtain each procedure of the process flow and a stage included in the procedure, including:
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, converting the character string into a data object through the execution program, and performing traversal analysis;
the method comprises the steps of sequentially reading execution instructions of each stage of each process, sending the execution instructions to corresponding control equipment for execution through setting a communication protocol, controlling corresponding equipment components of process equipment, and comprising the following steps:
and acquiring an execution instruction of each stage of each procedure, converting the execution content into an execution instruction in 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 corresponding equipment parts to execute operation through an IO interface by the control equipment.
In one embodiment, the process control method further comprises:
displaying configurable execution instructions of the process equipment as a configuration selection form;
acquiring at least one procedure and phase information of each phase of the procedure, which are input by a user in a form, and combining a plurality of phase forms of the procedure to generate a phase data segment;
and combining a web page dragging mode, carrying out dragging sequencing on the working procedures and each stage thereof, and freely combining or overlapping and combining a plurality of edited working procedures to generate execution contents of each working procedure of the technological process.
In one embodiment, the process control method further comprises:
exporting the generated process flow file into a process file with a set format;
the process file can also 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 are 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.
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 the built-in program modules of each functional module device are subjected to objectification encapsulation and are called outwards in a unified mode in an interface mode.
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 the process flow file with the set data exchange format; wherein the process flow file comprises execution content of each procedure of the process flow described in a structured data format;
the data analysis unit is used for carrying out traversal analysis on 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 procedure, and sending the execution instructions to corresponding control equipment for execution through setting a communication protocol so as to control corresponding equipment parts of the process equipment; wherein the control devices are respectively connected with at least one device component.
An industrial control system, comprising: the industrial personal computer is also communicated with the cloud platform through the Internet of things; wherein,,
the industrial personal computer is respectively connected with each control device;
each control device is respectively corresponding to a plurality of device components of the control 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 setting a communication protocol;
the industrial personal computer is configured to execute the steps of the process control method described above.
According to the technical scheme, the process flow file with the data exchange format is formed through the execution content of each procedure of the process flow described in the structured data format, and when the process is controlled, each procedure of the process flow and an execution instruction of a stage included in the procedure are acquired by traversing and analyzing the process flow file; the corresponding equipment components of the process equipment are controlled by setting communication protocols and transmitting the communication protocols to corresponding control equipment; according to the technical scheme, the full-automatic execution of the process is realized, the complete full-automatic flow control input can be formed, and the control efficiency of the process equipment is greatly improved.
Furthermore, through the customized process data structure, 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 involved in each process flow module are relatively fixed, so that a default template can be formed, and rapid reference and personalized adjustment of partial parameters are facilitated.
Furthermore, the protocols of different devices are unified and standardized to the upper layer for calling through the conversion program, so that the adaptation of the different devices can be realized quickly through the configuration file of the conversion program.
Furthermore, by adopting a modularized control scheme, the bus service of the industrial personal computer is used for collaborative unified management, so that the expansion of each functional module can be facilitated, each functional module is focused on the stability of the functional module, an interface is provided for the bus service call, and the upgrading and the replacement of the modules are facilitated. And each functional module integrates all controllable instructions and collectable data into bus service, thereby realizing finer granularity, more individuation and more complex control logic and meeting the advanced use scene of coating process personnel.
Furthermore, by flexibly combining all controllable parameters, the modularized units can be realized, the process flow is reconstructed by the modularized 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 modularized reusable idea, and finally, the full-flow automatic execution is realized through the generated process flow file.
Furthermore, the technical scheme for re-editing the process flow file is provided, so that the edited process flow file can be conveniently re-edited, and the modification function of 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 of an exemplary vacuum coater;
FIG. 3 is a process control method flow diagram of one embodiment;
FIG. 4 is a schematic view of the structure of a process control device according to one embodiment;
FIG. 5 is a schematic diagram of a vacuum coating control system according to one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.
The technical scheme is applied to process equipment to control all equipment parts of the process equipment, and aims at all links of the process to realize a complete full-automatic flow control function. Based on the technical purposes, 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 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 system 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 embodiments, in the following embodiments, a vacuum coating machine will be taken as an example for assistance in description, and accordingly, the present application provides an example of a control system of a vacuum coating machine, as shown in fig. 2, and fig. 2 is a schematic diagram of the control system of an example vacuum coating machine; in the example, the industrial personal computer can also communicate with the cloud platform through the Internet of things; the industrial personal computer is connected with each control device respectively; each control device is used for correspondingly controlling a plurality of device components of the vacuum coating machine; 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 setting a communication protocol; for convenience of explanation, the set data exchange format in the embodiment of the present application may be JSON (JavaScript ObjectNotation, JS object notation, a lightweight data exchange format) format; the set-up communication protocol may be a modbus (a serial communication protocol) protocol. The industrial personal computer can configure an execution program to uniformly execute execution instructions such as instruction issuing and data acquisition instructions, and the like, provides web services, and realizes functions such as real-time monitoring, process editing, data analysis, remote analysis and the like; furthermore, the method provides friendly and convenient visual interactive design, packages the process flow in the vacuum coating process according to modules, provides the process parameter combination setting function with the finest granularity, runs through the whole process of the coating process, starts on line with a generated process execution file, and realizes full-automatic execution of the coating process.
As an example, the process flow of vacuum coating for the present application may include: an air extraction process, a baking and heating process, a cleaning process, a film forming process, an air release process, and the like.
Embodiments of the process control method of the present application are set forth below.
The process control method provided by the application can be applied to the industrial personal computer of the above example, and referring to fig. 3, fig. 3 is a process control method flowchart of an embodiment, including:
s110, receiving a process flow file with a set data exchange format; wherein the process flow file includes execution of each of the process steps of the process flow described in a 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 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, corresponding to a protocol defined by the communication of the control device.
For example, the execution content of each process is described in JSON format, the process flow is composed of the process steps, the process steps are composed of each stage, each stage controls/detects the instruction set, as an example, the JSON data structure applied to the vacuum coating process may be as follows:
in the process data structure as described above, 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 a plurality of stages, the stage Name in each stage represents a stage Name, and other key values represent execution instructions or detection conditions; the protocol defined by the communication between the industrial personal computer and the control device is corresponding, for example, a requirement of detecting condition that door_lock_joint=1 is set in the door closing waiting stage in the process data structure, that is, the detected value of door_lock_joint door switch in the corresponding protocol must be 1; in the pumping start stage, the coating_vacuum=0.01 means that pumping is performed until the vacuum reaches 0.01Pa, and the subsequent stages and processes cannot be continuously performed after the condition is satisfied.
Through the process data structure of the embodiment, the characteristic of flexible configuration of the JSON key is fully utilized, the characteristic is combined with the flexible combination requirement of the 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, parameters involved in each process flow module are relatively fixed, and therefore a default template can be formed, and rapid reference and personalized adjustment of partial parameters are facilitated.
S120, 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 a phase includes executing a set of instructions, such as control instructions, detection instructions, etc.
In the process, as an embodiment, the execution process flow can be called through the visual interface, the process flow file with the set data exchange format is transmitted to the execution program in the form of character strings, the character strings are converted into data objects through the execution program, and traversal analysis is performed.
For example, the execution process is called through the web front-end visual interface, the JSON structure data is transmitted to the execution program in a character string, the execution program converts the JSON character string into a JSON object, for traversal analysis is carried out according to a known data structure, the first processName air extraction procedure is read in traversal, the Name of the stage Name of traversal analysis is obtained, the door closing is waited, the door_lock_joint JSON key obtains the execution instruction of the door closing stage of the air extraction procedure, after the execution instruction of the door closing stage is waited, the next stage of the air extraction procedure, namely the air extraction starting stage, is waited, after the execution instruction of the air extraction starting stage is waited, the standby state entering procedure of the next procedure is traversed and analyzed until the execution instruction of all procedures and stages thereof are traversed and analyzed.
S130, 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 components of the process equipment; wherein the control devices are each connected to at least one device component.
After traversing and analyzing in the step S120, sequentially acquiring the execution instructions of each process and each stage thereof, converting the execution content into the execution instruction in the control device according to the set data exchange format, sending the execution instruction to the corresponding control device through the set communication protocol, and controlling the corresponding device components to execute the operation through the IO interface by the control device.
As an embodiment, the door closing command can be converted into a door closing command in the control device through the JSON key and the corresponding protocol, the door closing command protocol is finally sent to the corresponding control device through the set communication protocol, and the control device is attracted through the relay of the IO control device, so that door closing operation is realized; after the closing stage is completed, the control device feeds back the completion information, and traverses the execution instruction of the next stage (the extraction starting stage) of the extraction process through step S120, and the control device executes the execution instruction of the extraction starting stage, … …; and the like until all subsequent procedures and stage operations are completed, so that the process automation operation is realized.
When the execution content is converted into the execution instruction in the control equipment, different execution instructions and functional modules are in one-to-one correspondence through conversion programs, and serial communication protocols of different control equipment are subjected to standardized escape;
for example, the door_lock_joint and the coating_vacuum are JSON keys, and the protocol corresponding to the door_lock_joint is to communicate with the control device 1, and the protocol message is 0001.
According to the technical scheme of the embodiment, protocols of different devices are unified and standardized to an upper layer for calling through the conversion program, so that adaptation of the different devices can be realized quickly 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, namely, control devices 1 to 5 are listed, wherein each functional module device corresponds to a device component that controls a different functional type, respectively; the built-in program module of each functional module device performs objectification encapsulation and is called outwards in a unified way in an interface mode; on hardware, the control equipment can be realized by a singlechip and is communicated with an industrial personal computer through a modbus protocol.
Taking a vacuum coating machine as an example, based on the process control system with the structure, the equipment parts of the vacuum coating machine are divided into a plurality of functional modules through a modularized thought, and each module bears an independent control range and 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; the functional modules are uniformly controlled by an industrial control host, and the industrial control host uses intelligent bus service application as a control brain to command the operation of the equipment parts, drive and monitor the execution of a coating process.
According to the technical scheme, the 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 focused on the stability of the functional module, an interface is provided for the bus service to call, and the upgrading and replacement of the functional module are facilitated. And each functional module integrates all controllable instructions and collectable data into bus service, thereby realizing finer granularity, more individuation and more complex control logic and meeting the advanced use scene of coating process personnel.
In order to further clarify the technical solutions of the present application, further embodiments are described in the following.
In one embodiment, the process control method provided in the present application may further include, before step S110:
s100, acquiring execution contents of various procedures of a process flow; executing the content through the structured data format description; the content generation process flow file will be executed.
Through convenient interactive design and structured data format description execution content, the process flow in the process is packaged according to modules, the process parameter combination setting function with the finest granularity is provided, the whole process flow can be penetrated, and the process flow file is generated on line, so that one-key start can be realized, and full-automatic execution of the process control process is realized.
In one embodiment, after determining the data structure of the execution program, in order to facilitate the user to intuitively design the process flow, the present application further provides a visual process design engine, and the web technology is adopted to implement free ordering, combination and editing of the procedures and each stage, so as to freely generate the required complete process.
Accordingly, the process control method of the present application may further include the steps of:
displaying configurable execution instructions of the process equipment as a configuration selection form; acquiring at least one procedure input by a user in a form and phase information of each phase of the procedure, combining a plurality of phase forms of the procedure and generating a phase data segment; and combining a web page dragging mode, carrying out dragging sequencing on the process and each stage thereof, and freely combining or overlapping a plurality of edited processes to generate execution contents of each process of the process flow.
For example, all configurable parameters (such as control instructions and detection instructions in a JSON data structure) are provided for a user to make a configuration selection form in a explicit mode, such as waiting for closing a door, exhausting air, deflating air, setting a temperature by 180 degrees, etc., the user can freely combine the formation stages, input the formation stage information in a form mode, combine a plurality of stage forms to generate a stage data stage module, in the JSON data structure, wait for closing the door and exhausting air to start to combine into an exhausting stage, combine the dragging capability in the web page technology, realize the dragging sequencing of the process and each stage thereof, freely combine or overlap the plurality of edited processes, and finally generate the complete film coating process.
In addition, in the process flow design process, the combined working procedures can be changed into preset templates, 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 when in use, so that the modularized combined process design is realized.
According to the technical scheme of the embodiment, through flexible combination of all controllable parameters, the modularized units can be realized, the process flow is reconstructed by the modularized 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 modularized reusable idea, and finally the full-flow coating automatic execution is realized through the generated process flow file.
In one embodiment, in the process flow design process, in order to facilitate re-editing of the edited process flow file, a modification function of the process flow file is implemented.
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 also 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 are displayed in the process design platform; and acquiring the editing operation of a user on the process file, and recombining to generate a new process file.
For example, the designed process flow file is exported to be a process file in an excel file format, a user can edit the process file again, the existing process file can be imported in a process design platform, the process file in the excel file format is analyzed to be JSON format data through the process design platform, the JSON format data is displayed in the process design platform, and after the process file is edited again by the user, the new process file is recombined to generate finally a visual design working interface.
An embodiment of the process control apparatus is set forth below.
Referring to fig. 4, fig. 4 is a schematic structural view of a process control apparatus according to an embodiment, including:
a data interaction unit 110, configured to receive a process flow file for setting a data exchange format; wherein the process flow file comprises execution content of each procedure of the process flow described in a structured data format;
the data parsing unit 120 is configured to perform traversal parsing on the process flow file according to the process flow sequence, so as to obtain each process of the process flow and a stage included in the process; 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 through a set communication protocol for execution, so as to control corresponding equipment components of the process equipment; wherein the control devices are respectively connected with at least one device component.
In one embodiment, as shown in fig. 4, the process control apparatus provided in the present application may further include:
a file generating unit 100 for acquiring execution contents of each process of the process flow; executing the content through the structured data format description; the content generation process flow file will be executed.
The process control device of the present embodiment may execute a process control method provided by the embodiment of the present application, and its implementation principle is similar, and actions executed by each module in the process control device of each embodiment of the present application correspond to steps in the process control method of each embodiment of the present application, and detailed functional descriptions of each module of the process control device may be specifically referred to the descriptions in the corresponding process control method shown in the foregoing, which are not repeated herein.
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 applications configured to: the process control method according to any of the above embodiments is performed.
The present application also provides a computer readable storage medium storing at least one instruction, at least one program, a set of codes, or a set of instructions, the at least one instruction, the at least one program, the set of codes, or the set of instructions being loaded by the processor and performing the process control method of any of the embodiments described above.
The process control device, the computer device and the computer readable storage medium of the above embodiment form a process flow file with a set data exchange format by 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 an execution instruction of a stage included in the process during film coating control; the corresponding equipment components of the process equipment are controlled by setting communication protocols and transmitting the communication protocols to corresponding control equipment; according to the technical scheme, the full-automatic process control input can be formed in the full-automatic execution process of the process, and the control efficiency of the process equipment is greatly improved.
Furthermore, through convenient interactive design and structured data format description execution content, the process flow in the process is packaged according to modules, the process parameter combination setting function with the finest granularity is provided, the whole process flow can be penetrated, and the process flow file can be generated on line, so that one-key start can be realized, and the full-automatic execution of the coating process is realized.
An example of an industrial control system is 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 industrial personal computer is also communicated with the cloud platform through the Internet of things; the industrial personal computer is connected with each control device respectively; each control device is respectively corresponding to a plurality of device components of the control 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 setting a communication protocol; the industrial personal computer is configured to perform the steps of the process control method of any of the embodiments described above.
As shown in fig. 5, the industrial personal computer may provide web services including real-time monitoring, process editing, data analysis, remote upgrading, etc., and perform internet of things communication with an EMQ Broker program of the cloud platform through an EMQ Edge program, where the web services provided by the cloud platform include real-time monitoring, process editing, data analysis, remote upgrading, security authentication, a rule engine, etc., and meanwhile, the cloud platform also provides database and cache middleware functions. In addition, the light control equipment monitors through the light control host computer, respectively realizes signal acquisition and calculation engine functions, and related light control monitoring data are sent to an execution program for processing.
The function module can be divided into a judge module, a motion module, a temperature module, an evaporation module, an ion source module and the like according to the function division module, and each function module internally completes respective functions and provides interfaces for other modules to call. The method comprises the steps that a judge module is responsible for carrying out air suction, vacuum maintenance, air discharge operation, safety closed loop interlocking logic of bottom equipment and the like on a vacuum chamber, an air suction/air discharge function is defined in a module program, air suction/air discharge control is set, a corresponding interface function is called, operation parameters (0: closed, 1: open) are set by the function, parameter data are sent to the judge module through a modbus serial port protocol, the electric control judge module receives a control instruction, the internal logic is triggered to control the switching sequence of valves of all equipment in the air suction/air discharge logic, the independent program module is adopted for object packaging, and the interface is used for uniformly calling the outside. The safety closed-loop interlocking logic of the bottom equipment is a safety logic function in the module, and when the judge module collects that the water, electricity and gas states of the equipment are unsatisfied or not opened, operations such as air extraction/air release and the like are not allowed to be executed, and the safety closed-loop logic is achieved. 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 a crucible position No. 1, a module program calls a crucible function to rotate, a parameter crucible position No. 1 is set, a parameter instruction is converted into a modbus protocol instruction, the modbus protocol instruction is communicated with the operation control module through a serial port protocol, and the operation control module sets the crucible position to control equipment operation. The temperature control module is responsible for setting the baking temperature, the high-voltage filament and other switch control, if the baking 1 temperature is set to 180 degrees, the module program calls the function of setting the baking 1 temperature, the parameter of 180 degrees is set, the parameter instruction is converted into a modbus protocol instruction, the parameter instruction is communicated with the temperature control module through a serial port protocol, the temperature control module sets the baking 1 temperature to 180 degrees, and the operation of control equipment is controlled. The evaporation and deposition module is responsible for coating film with equipment control equipment such as crystal control equipment, electron gun equipment and the like, such as SIO needing film coating 2 SIO is to 2 Film system parameter thickness and the like, program functions in the evaporation and deposition module are sequentially called, film system parameters are converted into modbus protocol instructions, and the modbus protocol instructions are sent to evaporation and deposition module equipment through a serial port protocol, so that SIO is set 2 The film system parameters were successful.
As in the industrial control system, the whole process control flow is controlled by a total control program. A film coating control flow is set through a visual interface, and the total control flow is uniformly scheduled from each module and the acquired data state through equipment, so that more scientific and stable work of each module is realized.
The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (10)
1. The process control method is characterized by being applied to an industrial personal computer, wherein the industrial personal computer is respectively connected with each control device; the industrial personal computer performs data interaction with the control equipment through setting a communication protocol; the method comprises the following steps:
receiving a process flow file for setting a data exchange format; wherein the process flow file comprises execution content 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 working procedure of the process flow and the stage included in the working procedure; wherein the stage comprises executing a set of instructions;
sequentially reading execution instructions of each stage of each procedure, and sending the execution instructions to corresponding control equipment for execution through setting a communication protocol so as to control corresponding equipment components of the process equipment; wherein the control devices are respectively connected with at least one device component.
2. The process control method according to claim 1, further comprising:
acquiring execution content of each procedure of the process flow;
describing the execution content through 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 procedure;
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 the communication of the control device.
4. The process control method according to claim 1, wherein 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 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, converting the character string into a data object through the execution program, and performing traversal analysis;
the method comprises the steps of sequentially reading execution instructions of each stage of each process, sending the execution instructions to corresponding control equipment for execution through setting a communication protocol, controlling corresponding equipment components of process equipment, and comprising the following steps:
and acquiring an execution instruction of each stage of each procedure, converting the execution content into an execution instruction in 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 corresponding equipment parts to execute operation through an IO interface by the control equipment.
5. The process control method according to claim 1, further comprising:
displaying configurable execution instructions of the process equipment as a configuration selection form;
acquiring at least one procedure and phase information of each phase of the procedure, which are input by a user in a form, and combining a plurality of phase forms of the procedure to generate a phase data segment;
and combining a web page dragging mode, carrying out dragging sequencing on the working procedures and each stage thereof, and freely combining or overlapping and combining a plurality of edited working procedures to generate execution contents of each working procedure of the technological process.
6. The process control method according to claim 1, further comprising:
exporting the generated process flow file into a process file with a set format;
the process file can also 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 are 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.
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 the built-in program modules of each functional module device are subjected to objectification encapsulation and are called outwards in a unified mode in an interface mode.
8. The process control method according to claim 1, wherein the set data exchange format is JSON format; the set communication protocol is a modbus protocol.
9. A process control apparatus, comprising:
the data interaction unit is used for receiving the process flow file with the set data exchange format; wherein the process flow file comprises execution content of each procedure of the process flow described in a structured data format;
the data analysis unit is used for carrying out traversal analysis on 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 procedure, and sending the execution instructions to corresponding control equipment for execution through setting a communication protocol so as to control corresponding equipment parts of the process equipment; wherein the control devices are respectively connected with at least one device component.
10. An industrial control system, comprising: the industrial personal computer is also communicated with the cloud platform through the Internet of things; wherein,,
the industrial personal computer is respectively connected with each control device;
each control device is respectively corresponding to a plurality of device components of the control 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 setting a 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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| CN115343985A (en) * | 2022-08-01 | 2022-11-15 | 中山南顺制衣有限公司 | Control system of automatic rope threading and brand folding device |
| CN117201233A (en) * | 2023-09-18 | 2023-12-08 | 成都四为电子信息股份有限公司 | Central air conditioning energy-saving control gateway |
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