CN110751892A

CN110751892A - Discrete manufacturing demonstration system and demonstration method, demonstration device and storage medium

Info

Publication number: CN110751892A
Application number: CN201810811297.8A
Authority: CN
Inventors: 克里斯托弗·劳姆; 刘魁; 时海洋; 周晓峰; 张威; 李于江
Original assignee: Siemens Ltd China
Current assignee: Siemens Ltd China
Priority date: 2018-07-23
Filing date: 2018-07-23
Publication date: 2020-02-04

Abstract

The application relates to a demonstration system and a demonstration method for discrete manufacturing, a demonstration device and a storage medium, wherein the demonstration system comprises a terminal and an automatic demonstration device; a product life cycle management system, an enterprise resource management system and a manufacturing operation management system are integrated on the terminal; the automatic demonstration equipment comprises an industrial personal computer, a PLC (programmable logic controller) component, an RFID (radio frequency identification) component and an interactive display device; the production line PLC of the industrial personal computer can simulate the control of a virtual production line; the RFID component can identify whether the virtual work in process enters a to-be-executed work station in a virtual production line; the PLC component can control the execution process of the work station to be executed when the virtual work in process is determined to enter the work station to be executed; the interactive display device can demonstrate the virtual production line and simulate the execution process of each work station in the virtual production line. The demonstration system, the demonstration method, the demonstration device and the storage medium for discrete manufacturing are convenient to carry and high in integration level, and can simulate and display various scenes and information streams of production and manufacturing.

Description

Discrete manufacturing demonstration system and demonstration method, demonstration device and storage medium

Technical Field

The application relates to the technical field of digital demonstration of discrete manufacturing, in particular to a demonstration system and a demonstration method for discrete manufacturing, a demonstration device and a storage medium.

Background

Digitization is an essential component of industrial 4.0 and smart manufacturing, especially for discrete manufacturing. How to show the digitization technology to the customer becomes an important issue. In the conventional technology, the digital technical solution is shown to the client in the following ways: the method is characterized in that an actual digital factory is established, a client visits the factory in the field or establishes a display center of a digital production line, and the client visits the operation process of the digital production line of an automatic factory or the display center in the field, but the display mode is inconvenient. In order to improve the display convenience of the digital technical solution, the digital technical solution can be displayed in a video, picture or character mode, but the display mode can only present partial discrete information and cannot convincingly display the technical solution of the digital enterprise clearly and completely to a user.

Disclosure of Invention

Therefore, it is necessary to provide a demonstration system, a demonstration method, a demonstration apparatus, and a storage medium capable of demonstrating a discrete manufacturing production system, which are convenient to carry and have high integration level, and which can simulate and demonstrate various scenes of product design, process planning, production line design, production management, production execution, and the like of the production system and the information flow thereof, in order to solve the above technical problems.

A discrete manufacturing demonstration system comprising:

the system comprises a terminal, a product life cycle management system, an enterprise resource management system and a manufacturing operation management system, wherein the terminal is integrated with the product life cycle management system, the enterprise resource management system and the manufacturing operation management system;

the product life cycle management system can carry out product design, process planning and production line design, and can carry out data interaction with the enterprise resource management system and the manufacturing operation management system; the enterprise resource management system can acquire production order information and transmit the production order information to the manufacturing operation management system; and

the automatic demonstration equipment is connected with the terminal and comprises an industrial personal computer, a PLC (programmable logic controller) assembly, an RFID (radio frequency identification) assembly and an interactive display device;

the industrial personal computer can carry a data acquisition and monitoring system and a production line PLC; the production line PLC can simulate the control of a virtual production line comprising a plurality of work stations, obtain current work order information corresponding to the current production order information from the manufacturing operation management system after system initialization or the execution of the previous production order information is completed, and write the current work order information into the RFID component;

the RFID component can identify whether a virtual work-in-process enters a to-be-executed work station in the virtual production line or not so as to trigger the production execution of the to-be-executed work station;

the PLC component can control the execution process of the station to be executed when the virtual work-in-process is determined to enter the station to be executed;

the interactive display device can perform data interaction with the data acquisition and monitoring system, demonstrate the virtual production line and simulate the execution process of each work station in the virtual production line.

The application also provides a demonstration method of discrete manufacturing, comprising the following steps:

operating a production line PLC to control a virtual production line comprising a plurality of work stations;

after system initialization or execution of previous production order information is completed, obtaining current work order information corresponding to the current production order information from the manufacturing operation management system through the production line PLC, and writing the current work order information into an RFID component, wherein the RFID component can identify whether a virtual work in process enters a to-be-executed work station in the virtual production line or not so as to trigger production execution of the to-be-executed work station;

when the virtual work-in-process is determined to enter the station to be executed, triggering a PLC component to operate so as to control the execution process of the station to be executed;

and demonstrating and simulating the virtual production line and the execution process of each work station in the virtual production line through an interactive display device and a data acquisition and monitoring system.

The present application further provides a discretely manufactured presentation device comprising a memory having stored thereon a computer program and a processor which, when executed, carries out the steps of the method of any one of the above.

The present application also provides one or more storage media having stored thereon a computer program that, when executed by a processor, performs the steps of the method of any one of the above.

The demonstration system, the demonstration method, the demonstration device and the storage medium for discrete manufacturing are characterized in that a product period management system, an enterprise resource management system and a manufacturing operation management system are integrated on a terminal, the automatic demonstration equipment is controlled to execute by the manufacturing operation management system, a production line PLC of the industrial personal computer can control the execution process of an actual production line, a PLC component can control the execution process of a work station after the work station verification on the virtual production line is successful, and the execution processes of the virtual production line and each work station on the virtual production line are demonstrated on the interactive display device, therefore, the whole process of actual production execution can be simulated and shown through the virtualized production line and the work station, and various data and data flow directions thereof related in the whole production execution process can be displayed to users through the data acquisition and monitoring system of the interactive display device and the industrial personal computer, so that the users can clearly understand the digital enterprise. Meanwhile, the demonstration system has the advantages of high integration level and convenience in carrying.

Drawings

FIG. 1 is a block diagram of a demonstration system for discrete manufacturing in one embodiment;

FIG. 2 is a block diagram showing the construction of a discrete manufacturing demonstration system in another embodiment;

FIG. 3 is a block diagram of one embodiment of the automated presentation device of FIG. 1;

FIG. 4 is a perspective view of the automated presentation device of FIG. 3 from a first perspective;

FIG. 5 is a perspective view of the automated presentation device of FIG. 3 from a second viewing angle;

FIG. 6 is a block diagram of a discretely fabricated presentation device in one embodiment;

FIG. 7 is a flow diagram illustrating a method of discrete manufacturing in one embodiment;

FIG. 8 is a flow chart illustrating a method of discrete manufacturing in another embodiment;

FIG. 9 is a display diagram of an interface of an interactive display device in one embodiment;

FIG. 10 is an interface display diagram of an interactive display device according to another embodiment.

Description of the main symbols

10 a portable automated presentation device;

11, an industrial personal computer; 111 production line PLC; 112 data acquisition and monitoring system; 12 a switch; 13 an interactive display device; 130-139 operating the control; 14 a PLC component; 141 a first PLC; 142 a second PLC; 15 distributed input and output module; 16 at least one input/output component; 161 emergency stop button; 162 operating a button; 1634-20 mA analog quantity operation knob; 17 an RFID component; 171 an RFID interface module; 172RFID read/write heads; 173 an RFID tag; 18 mounting a bracket; 181 a first side; 182 a second side; 183 arm-braces; 19 a power supply module;

20, a terminal;

21 a product lifecycle management system; 22 an enterprise resource management system; 23 manufacturing an operation management system;

30, a numerical control device;

40 cloud server;

50 a demonstration device;

51 a memory; 52 a processor.

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.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, for simplicity and clarity of illustration, elements having the same structure or function in some of the figures may be shown only schematically or only schematically. In this document, "and/or" refers to one or all of them.

FIG. 1 is a block diagram of a discretely-manufactured portable demonstration system provided by one embodiment of the present application. The discretely manufactured presentation system includes a terminal 20 and an automated presentation device 10 coupled to the terminal 20. In one embodiment, the terminal 20 can be a mobile terminal, such as a laptop, tablet, or cell phone, among others. Of course, in another embodiment, the terminal 20 is a desktop computer or a server, etc. The terminal 20 is integrated with a product life cycle Management system (PLM) 21, an Enterprise Resource Management system (ERP) 22, and a Manufacturing Operation Management system (MOM) 23. The product lifecycle management system 21 can be connected to the enterprise resource management system 22 and the manufacturing operation management system 23, and the manufacturing operation management system 23 can also be connected to the enterprise resource management system 22, that is, the product lifecycle management system 21, the enterprise resource management system 22, and the manufacturing operation management system 23 can perform data interaction. In this way, by integrating the product lifecycle management system 21, the enterprise resource management system 22, and the manufacturing operation management system 23, seamless integration of the entire process of the discrete manufacturing system can be achieved.

The product life cycle management system 21 can implement product design, process planning, and production line design, and uniformly manage related models (such as a product model, a process model, and a production line model), and specifically, the product life cycle management system 21 can establish a product model, a process model, a production line model, and the like according to the needs of a user. In one embodiment, the product lifecycle management system 21 exchanges data with a manufacturing operation management system 23. For example, the product lifecycle management system 21 generates a Bill Of Materials (BOM), a Bill Of Process (BOP), and a Bill Of Resources (BOR) based on the product design data, and/or the Process planning data and/or the production line design data, and the product lifecycle management system 21 can also transmit the Bill Of materials to the enterprise Resource management system 22, and transmit the Bill Of materials, and the Bill Of resources to the manufacturing operation management system 23.

In one embodiment, the product lifecycle management system 21 includes Teamcenter software, Tecnomatix software (capable of implementing factory simulation and process simulation), MCD software (capable of performing virtual debugging of automation control logic combined with hardware structure), NX software (integrated with CAD, CAM, CAE, and other application modules), and the like, wherein the Tecnomatix software, the MCD software, and the NX software exchange data with the Teamcenter software. Specifically, the Tecnomatix software transmits the simulation model it generates to the Teamcenter software, the MCD software transmits the optimized automation control program and hardware architecture to the Teamcenter software, and the NX software transmits the design model it generates to the Teamcenter software. The Teamcenter software generates the bill of materials, manufacturing bill of materials and resource bill of materials based on the simulation model and design model received by the Teamcenter software, and transmits the above-mentioned resource bill of materials, bill of materials and manufacturing bill of materials to the manufacturing operation management system 23.

In one embodiment, the user adjusts the simulation model generated by Tecnomatix software, the design model generated by NX software and the like through the Teamcenter software so as to realize the design adjustment of the demonstration system in the engineering stage. In one embodiment, the user also directly configures the design model provided by the enterprise into the presentation system through the Teamcenter software for presentation, so as to meet the customized technical verification requirements of the enterprise.

The enterprise asset management system 22 can obtain a Production Order (PO) and transmit the PO to the manufacturing operation management system 23. In one embodiment, enterprise resource management system 22 is capable of obtaining a bill of materials from product lifecycle management system 21 based thereon and generating production order information from the bill of materials (BOM) and communicating the production order information to manufacturing operations management system 23, and manufacturing operations management system 23 is capable of generating specific process information from the production order information and communicating the process information to automated presentation device 10 to simulate production execution. The manufacturing operation management system 23 monitors the production execution process of the simulation product of the automatic demonstration equipment according to the acquired production order information. Alternatively, enterprise resource management system 22 obtains the production order information directly from the user input. The production order information may include process information of the product, that is, the manufacturing operation management system 23 may obtain the process information according to the production order information, where the process information includes an execution sequence (i.e., a process path) of a plurality of processes, and a process parameter corresponding to each process or a program number corresponding to a corresponding process.

As shown in fig. 3, the automated presentation apparatus 10 includes an industrial personal computer 11, a PLC component 14, an RFID component 17, and an interactive display device 13. In one embodiment, the industrial personal computer 11 includes an interface (not shown) connected to the terminal 20, through which the industrial personal computer 11 can be connected to the manufacturing operation management system 23, so that the industrial personal computer 11 can obtain process information from the manufacturing operation management system 23, and feed back operation performance of each station to the manufacturing operation management system 23, and so on. In other embodiments, the industrial personal computer 11 is connected with the manufacturing operation management system 23 in a wireless communication manner, that is, the industrial personal computer 11 and the manufacturing operation management system 23 perform data exchange in a wireless manner. The PLC component 14, the interactive display device 13 and the RFID component 17 are all connected to the industrial personal computer 11.

The industrial personal computer 11 is mounted with a data acquisition and monitoring system (SCADA system) 112 and a production line PLC 111. In one embodiment, the data collection and monitoring system 112 and the production line PLC111 are both software (i.e., the production line PLC111 is a soft PLC), and the industrial personal computer is used as a carrier of the data collection and monitoring system 112 and the production line PLC 111. The industrial personal computer 11 is also provided with a PLC programming system and a configuration system, and can program a PLC program, simulate a PLC control process, define a human-computer interaction interface and the like. In the embodiment of the application, the production Line PLC111 of the industrial personal computer 11 simulates and demonstrates a control process of a production Line Level (Line Level). In one embodiment, the line PLC111 of the industrial personal computer 11 is embedded with a PLC program of the virtual line, which is capable of configuring a virtual line including a plurality of stations to control an execution process of the virtual line. The PLC program of the virtual line built in the line PLC111 is a program for obtaining a layout based on the design model created by the product lifecycle management system 21 or a program for obtaining a layout based on design data provided by an enterprise.

Before the production corresponding to the current production order information is executed, the production line PLC111 of the industrial personal computer 11 acquires the process information corresponding to the current production order information from the manufacturing operation management system 23, and transmits the process information to the PLC component 14. In the embodiment of the present application, process information is transmitted among the manufacturing operation management system 23, the industrial personal computer 11, the PLC component, and the like in the form of process parameters or a program number corresponding to a process. After the previous production order information is executed or the system is initialized, the production line PLC111 acquires current dispatch list information corresponding to the current production order information from the manufacturing operation management system 23, and writes the current dispatch list information into the RFID component 17. The current work station information indicates which work station the product needs to enter for processing at the current time, namely the current work station information records the information of the work station to be executed. The production line PLC111 can also obtain the operation performance of each station from the PLC module 14, and transmit the operation performance of each station to the manufacturing operation management system 23.

In one embodiment, the RFID component 17 can represent a logistics device (not shown) in a virtual production line for carrying articles of manufacture or products and passing through various stations of the virtual production line. For example, the logistics apparatus can be a pallet or a robotic arm, or the like. Specifically, the RFID component 17 can record the station (i.e. the station to be executed) that the work in process or product should enter, identify and verify whether the work in process or product enters the station to be executed, and trigger the operation of the PLC component 14 after determining that the work in process or product enters the station to be executed, so as to simulate the execution process of a logistics device in the virtual production line.

In one embodiment, the PLC component 14 is capable of controlling a simulation process of at least one device in the virtual production line to implement a Machine Level (Machine Level) control process. Specifically, the PLC component 14 can simulate the execution of the pending work station upon determining that the virtual work in process entered the pending work station. Each work station on the virtual production line can complete one process in the production flow of the product. For example, a material loading station, an assembly station, a quality inspection station, a maintenance station, a marking station, a packaging station, and the like can be provided on the virtual production line. Each work station is provided with various devices required for completing the process, and the PLC component 14 controls the execution process of the work station to be executed after the virtual work in process enters the work station to be executed, specifically, the PLC component 14 controls the simulation execution of each device included in the work station to be executed.

In one embodiment, the PLC assembly 14 can include a first PLC 141 and a second PLC 142. In one embodiment, the first PLC 141 has better performance than the second PLC142, so that the two-stage PLC controlled device execution process can be realized, the simulation demonstration can be closer to the actual production line of the client, and the demonstration effect can be optimized.

The interactive display device 13 can perform data interaction with a data acquisition and monitoring system (SCADA system) 112 to demonstrate the virtual production line and simulate the execution process of each workstation in the virtual production line. Specifically, the interactive display device 13 can represent a data acquisition and monitoring system (SCADA system) 112 together with a WinCC (Windows Control Center) system provided in the industrial personal computer 11. That is, the execution process of the virtual production line can be presented and operated by the interactive display device 13 when the system executes. In this way, the whole process of production execution of the actual product can be displayed through the interactive display device 13, and various data related to the whole process of production execution of the product and the data flow direction thereof can be displayed to the user, so that the user can clearly understand the digital enterprise. In one embodiment, the interactive display device 13 is a touch display panel.

In the embodiment of the application, in order to simulate the production execution process of a factory, the demonstration system defines three levels: plant Level, i.e., the manufacturing operation management system 23; a Line Level (Line Level), i.e., an industrial personal computer 11; and a device Level (Machine Level), i.e., the PLC component 14. At the Plant Level, the MOM system is connected to the industrial personal computer 11 of the portable automatic presentation device 10 and performs data exchange during system execution. At the Line Level (Line Level), devices can be connected in a star topology or daisy chain. The production line level workshop network is isolated from the factory level office network. The industrial personal computer 11 in the production line level can be connected with the MOM system, and controls the speed, start and stop of the equipment in the virtual production line, and provides information such as the running state of all the equipment in the production line to an operator through the interactive display device 13. At the device level (MachineLevel), the devices within the device adopt a simple linear topology. The customer can conveniently expand the scale of the equipment.

In one embodiment, the automated demonstration device 10 can further include a switch 12, the industrial personal computer 11, the PLC component 14, the RFID component 17 and the interactive display device 13 are all connected to the switch 12, and the interactive display device 13, the PLC component 14 and the RFID component 17 can be connected to the industrial personal computer 11 through the switch 12. In one embodiment, the automated presentation device 10 can further comprise a distributed input output module 15 and at least one input output component 16, wherein the distributed input output module 15 is communicatively coupled to the switch 12; at least one input output component 16 is electrically connected to the PLC assembly 14 and/or the distributed input output module 15.

In one embodiment, the input output component 16 can be operated and transmit the operation signal to the PLC component 14 and/or the distributed input output module 15, or receive a control signal from the PLC component 14 and/or the distributed input output module 15. The operating signal can be received by the PLC component 14 and/or a soft PLC within the industrial personal computer 11 (i.e., the production line PLC 111). The PLC component 14 and/or a soft PLC within the industrial personal computer 11 can respond to the control signal. In one embodiment, the input and output part 16 can include an emergency stop button 161, at least one operation button 162, and at least one 4-20 mA analog quantity operation knob 163, wherein the emergency stop button 161 and the at least one operation button 162 are electrically connected to the distributed input and output module 15, respectively, and the analog quantity operation knob 163 is electrically connected to the second PLC 142. Different input/output parts are connected with different controllers, so that the demonstration can be closer to an actual production line, and the demonstration effect is optimized.

In one embodiment, as can be seen in the embodiments shown in fig. 4 and 5, the portable automated presentation device 10 further comprises: a mounting bracket 18 and a brace 183, the brace 183 being mounted to the mounting bracket 18 to support the mounting bracket 18; the industrial personal computer 11, the switch 12, the first PLC 141, the second PLC142, the distributed input and output module 15 and the RFID component 17 are mounted on a first side surface 181 of the mounting bracket 18, and the interactive display device 13, the emergency stop button 161, the at least one operation button 162 and the at least one 4-20 mA analog quantity operation knob 163 are mounted on a second side surface 182 of the mounting bracket 18; the first side 181 and the second side 182 are located on opposite sides of the mounting bracket 18. The portable automatic demonstration equipment is simple in installation structure and high in integration level. In one embodiment, the portable automated presentation device 10 further comprises a transport case (not shown) capable of receiving the mounting bracket 18, the temple 183, and the components mounted to the mounting bracket. The transport case can be conveniently moved and carried, and is convenient to carry to a client for on-site demonstration. In one embodiment, the portable automated presentation device 10 also includes a power module 19 that provides power to other components within the portable automated presentation device 10.

In one embodiment, as shown in FIG. 3, the RFID component 17 includes an RFID interface module 171, at least one RFID read/write head 172, and at least one RFID tag 173 (not shown). In one embodiment, the number of the RFID tags 173 is one, and in the embodiment of the present application, the simulation execution of the plurality of logistics devices on the virtual production line is realized by multiplexing one RFID tag 173, so that the structure of the demonstration system can be simplified. The RFID interface module 171 is communicatively connected to the switch 12, and the RFID read/write head 172 is electrically connected to the RFID interface module 171. In addition, the RFID tag 173 can store the current dispatch list information, and the information carried by the RFID tag 173 can be read and written by the RFID read/write head 172. Thus, the current dispatch list information can be read and/or written by the RFID read-write head, and finally interacts with the external manufacturing operation management system 23 through the production line PLC111 of the industrial personal computer 11, so that the product information can be conveniently simulated and identified, and processed and analyzed.

In one embodiment, the PLC component 14 generates an execution feedback message after the end of execution of the last station identified by the last dispatch list information prior to the current dispatch list information, and transmits the execution feedback message to the manufacturing operation management system 23. The manufacturing operation management system 23 is further capable of obtaining a process information according to the production order information, generating a current work order information according to the process information of the product and/or the execution feedback information corresponding to the previous work order information, and transmitting the current work order information to the production line PLC 111. The production line PLC111 of the industrial personal computer 11 also writes the current dispatch list information into the RFID tag 173.

In one embodiment, when the manufacturing operation management system 23 receives the execution feedback information corresponding to the previous work order information, the manufacturing operation management system 23 can further determine whether the execution condition of the to-be-executed work station determined by the previous work order information (for example, the to-be-executed work station determined by the previous work order information is marked as the previous work station) reaches the standard according to a preset standard. If the execution condition of the previous work station reaches the standard, the manufacturing operation management system 23 can take the next work station after the previous work station as the work station to be executed according to the process information, and take the information of the work station to be executed as the current dispatch list information. The process information includes an execution sequence (i.e., a process path) of a plurality of processes, process parameters corresponding to the processes, and the like. If the execution condition of the previous work station does not reach the standard, the manufacturing operation management system 23 can take the previous work station as the work station to be executed again, or take the maintenance work station as the work station to be executed. And the preset standard is a process standard corresponding to the work station.

In one embodiment, the execution feedback information corresponding to the previous work station determined by the previous dispatch list information includes the execution end information of the previous work station and the operation performance (i.e., the actual operation parameters of the previous work station) of the previous work station. The manufacturing operation management system 23 can compare the operation performance of the previous work station with the preset standard. And if the operation achievement of the previous work station is within the preset parameter range, determining that the execution condition of the previous work station reaches the standard. And if the operation actual result of the last work station exceeds the preset parameter range, determining that the execution condition of the current execution work station does not reach the standard.

For example, if it is known from the production order information that the production and processing of the product need to pass through N (N is greater than or equal to 1, N is a positive integer) work stations arranged on the virtual production line, each work station can complete the processing of one process, and the execution sequence of the N work stations is as follows: station 1, station 2, station 3, … …, station N. Namely, the process path is as follows: station 1, station 2, station 3, … …, station N.

At this time, after the system is initialized, the production line PLC111 may set the station 1 as a station to be executed according to the process path, and the current dispatch list information describes that the station 1 is a station to be executed, and the production line PLC111 may write the current dispatch list information into the RFID tag 173. When the work station 1 is successfully identified (i.e. the RFID component determines that the work station 1 is a work station to be executed), the PLC component 14 can simulate the execution of the work station 1.

When the PLC component 14 completes execution of the station 1, it may generate execution feedback information for the station 1 and transmit the execution feedback information for the station 1 to the manufacturing operation management system 23. After receiving the execution feedback information of the work station 1, the manufacturing operation management system 23 can determine whether the execution condition of the work station 1 reaches the standard according to a preset standard. If the execution condition of the work station 1 reaches the standard, the manufacturing operation management system 23 sets the work station 2 as the next work station according to the process information, that is, updates the current work order information to the work station 2. Thereafter, the production line PLC111 can write the current dispatch list information into the RFID tag 173. If the execution condition of the work station 1 does not reach the standard, the manufacturing operation management system 23 takes the work station 1 as the next work station, that is, the product needs to return to the work station 1 to continue to be executed. At this time, the production line PLC111 can write the information on the work station 1 as the current dispatch list information into the RFID tag 173. Alternatively, if the execution condition of the work station 1 does not reach the standard, the manufacturing operation management system 23 can use the work station N (e.g., a maintenance work station) as the next work station, i.e., the product needs to enter the work station N for continuous maintenance. At this time, the production line PLC111 can write the information on the work station N as the current dispatch list information into the RFID tag 173.

In one embodiment, the preset standard is a process standard corresponding to the station. For example, the process standard of the station 1 is to apply 10 newtons of force to tighten the screw, and the process standard of the station 1 is to: the force applied needs to be between 9 newtons and 10.5 newtons. If the manufacturing operation management system 23 knows from the execution feedback information of the station 1 that the output force of the equipment is 8 newtons during the execution of the station 1, the manufacturing operation management system 23 may determine that the execution condition of the station 1 does not meet the standard. If the manufacturing operation management system 23 learns that the output force of the equipment is 10.1 newtons during the execution of the station 1 according to the execution feedback information of the station 1, the manufacturing operation management system 23 may determine that the execution condition of the station 1 meets the standard.

The reuse of the RFID component 17 of the exemplary system is illustrated herein and is not intended to limit the scope of the present application. In the embodiment of the application, the industrial personal computer 11 generates the current dispatch list information according to the process information and/or the execution feedback information of the previous work station, and writes the current dispatch list information into the RFID tag 173, so that multiple multiplexing of the same RFID tag 173 can be realized, and thus the automatic demonstration device does not need to be provided with a plurality of RFID tags 173, and the structure of the automatic demonstration device can be simplified.

In one embodiment, the interactive display device 13 can also display operation controls 130 to 139 corresponding to each work station, and a user can touch any one of the operation controls 130 to 139 displayed on the interactive display device 13 to select a corresponding work station and generate work station selection information. The RFID read-write head 172 can acquire the current dispatch list information stored in the RFID tag 173. For example, when the RFID tag 173 (e.g., RFID card) is placed in the sensing area of the RFID read/write head, the RFID read/write head 172 can read the current dispatch list information stored in the RFID tag 173 and transmit the current dispatch list information to the line PLC 111.

The production line PLC111 of the industrial personal computer 11 can also obtain the work station selection information and the current work order information stored in the RFID tag 173, and compare the work station selection information with the current work order information stored in the RFID tag 173. If the production line PLC111 determines that the station selection information matches the current dispatch list information stored in the RFID tag 173, it determines that the virtual product enters a station to be executed, which is a station selected by the user, and at this time, the PLC component 14 can control an execution process of the station to be executed.

In one embodiment, the user can switch and select the work station at will through the operation control on the interactive display interface 13, that is, when the user triggers the operation control corresponding to a certain work station, the work station is used as a selected work station, and the production line PLC111 of the industrial personal computer 11 can receive the work station selection information. If the station selection information received by the production line PLC111 of the industrial personal computer 11 does not match the current dispatch list information read by the RFID read-write head, it is determined that the virtual work in process should not enter the selected station, i.e., the station selected by the user is not a station to be executed, and at this time, the production line PLC111 does not instruct the PLC component 14 to start the execution process of the station selected by the user.

In the above example, if the work station corresponding to the current dispatch list information is the work station 2, the work station information stored in the RFID tag 173 is the work station information corresponding to the work station 2. When the user selects the work station 3 through the interactive display device 13, since the work station information of the work station 3 does not match the current dispatch list information in the RFID tag 173, at this time, the production line PLC111 determines that the selected work station 3 is failed to identify (i.e., the work station 3 is not a work station to be executed), and the PLC component 14 does not start to execute the execution process of the work station 3. When the user selects the work station 2 through the interactive display device 13, at this time, the work station selection information received by the PLC component 14 matches the current dispatch list information read by the RFID read-write head, and at this time, the production line PLC111 determines that the work station 2 is successfully identified (i.e., the work station 2 is a work station to be executed), and triggers the PLC component 14 to operate, so as to control the execution process of the work station 2.

In one embodiment, after determining that the virtual work-in-process enters the station to be executed, the PLC component 14 obtains the process parameter corresponding to the station from the manufacturing operation management system 23 through the production line PLC111, and controls the execution process of the station according to the process parameter corresponding to the station. In one embodiment, after determining that the virtual work-in-process enters the station to be executed, the production line PLC111 transmits the identification signal of the virtual work-in-process entering the station to be executed to the manufacturing operation management system 23 to request the manufacturing operation management system 23 to issue the corresponding process parameter of the station to be executed. The manufacturing operation management system 23 transmits the process parameters required by the station to be executed or the program number corresponding to the process to the PLC component 14 through the production line PLC111, and the PLC component 14 controls the execution process of the station according to the obtained process parameters. In one embodiment, the process parameters include flow and process criteria for each process. In this way, the PLC module 14 can simulate the execution at the device level, and implement virtualization of the actual device to simplify the configuration of the system.

For example, if it is determined that the station 1 (for example, the station 1 is a loading station) is a station to be executed, the production line PLC111 requests the manufacturing operation management system 23 for a process parameter corresponding to the station 1 or a program number corresponding to the process. The manufacturing operation management system 23 issues a process parameter or a program number corresponding to the process of the station 1 to the production line PLC 111. The PLC component 14 acquires the process parameters corresponding to the work station 1 from the manufacturing operation management system 23 through the production line PLC111, and controls the execution process of the work station 1. The other stations are performed similarly to the station 1, and are not listed here.

In one embodiment, the data acquisition and monitoring system 112 of the industrial personal computer 11 controls the start and stop of the equipment corresponding to each work station on the virtual production line, and simulates the operation performance of the equipment corresponding to each work station; the execution process of each work station includes an operation state (such as a start state, a stop state or an operation state) of the equipment corresponding to the work station, an operation performance (such as an operation speed) of the equipment corresponding to the work station, an execution progress of the work station, an execution result of the work station, and the like. As shown in fig. 10, the execution process of each station is shown by the interactive display device 13. For example, the interactive display device 13 can show the operation state G1 of the work station in the form of a graph, and can also show the actual operation parameters P1 such as the operation speed of the corresponding equipment in the work station, and the performance parameters such as the execution progress of the work station. The interactive display device 13 can also display the execution simulation graph G2 of the work station in an animation or video mode, so that the user can intuitively know the execution process of the work station.

In one embodiment, as shown in FIG. 9, a user can touch any one of the operation controls 130-139 displayed on the interactive display device 13 to switch the display interface. Specifically, when receiving a trigger signal of an operation control corresponding to the current work station, the interactive display device 13 displays the state of the current work station. The current work station state includes an execution state and an idle state. If the current work station is determined to be the work station to be executed, the current work station is in an execution state; and if the current work station is determined not to be the work station to be executed, the current work station is in an idle state.

For example, as shown in fig. 9 and 10, the display interface corresponding to the operation control 130 is a production line control interface, which can control the interactive display device 13 to display icons of each work station on the virtual production line. The display interface corresponding to the operation control 131 is a state display interface of the workstation 1(S1), and is capable of triggering the interactive display device 13 to display the state of the workstation 1 (S1). The display interface corresponding to the operation control 132 is a state display interface of the workstation 2(S2), and is capable of triggering the interactive display device 13 to display the state of the workstation 2 (S2). The display interface corresponding to the operation control 133 is a state display interface of the workstation 3(S3), and is capable of triggering the interactive display device 13 to display the state of the workstation 3 (S3). The display interface corresponding to the operation control 134 is a state display interface of the workstation 4(S4), and is capable of triggering the interactive display device 13 to display the state of the workstation 4 (S4). The display interface corresponding to the operation control 135 is a state display interface of the workstation 5(S5), which can trigger the interactive display device 13 to show the state of the workstation 5 (S5). The display interface corresponding to the operation control 136 is a state display interface of the workstation 6(S6), which can trigger the interactive display device 13 to show the state of the workstation 6 (S6). The display interface corresponding to the operation control 137 is a state display interface of the workstation 7(S7), and is capable of triggering the interactive display device 13 to display the state of the workstation 7 (S7). The display interface corresponding to the operation control 138 is a state display interface of the work station 8(S8), which can trigger the interactive display device 13 to show the state of the work station 8 (S8). The operation control 139 is an operation control for exiting the display. In one embodiment, the interactive display device can also show parameter setting controls, time display controls, and the like. As shown in fig. 9, when the operation control 130 is triggered, the interactive display device 13 can display icons of the operation control 130, which can display each work station on the virtual production line. When the operation control 132 is triggered, the interactive display device 13 can show the execution process of the work station 2(S2) after the RFID component determines that the work station 2 is a work station to be executed, as shown in fig. 10.

In one embodiment, as shown in FIG. 2, the demonstration system further comprises a numerical control device 30. The numerical control device 30 is connected with the terminal 20 and the automatic demonstration equipment 10, and the numerical control device 30 can obtain a numerical control machining program of one or a plurality of numerical control equipment in a work station of the virtual production line so as to simulate material reduction manufacturing or material increase manufacturing based on the numerical control machine. The numerical control machining program of one or a plurality of numerical control devices can reflect numerical control machining parameters (such as the feed angle of a machining tool, the cutting thickness and the like) of the corresponding devices.

In one embodiment, as shown in fig. 2, the demonstration system further includes a cloud server 40, the cloud server 40 is connected to the automated demonstration device 10, and specifically, the cloud server 40 is connected to the production line PLC111 or the manufacturing operation management system. The industrial personal computer 11 can also be connected to the cloud server 40, and the cloud server 40 can obtain the operation achievement of the equipment in each work station on the virtual production line from the production line PLC111, analyze and optimize the operation achievement of the equipment in each work station, obtain an optimized operation instruction, and transmit the optimized operation instruction to the production line PLC111 or the manufacturing operation management system 23 so as to monitor the operation of the production line in real time. In the embodiment of the application, the operation actual results of the equipment in each work station include the states of all production resources required in the execution process of the work station and the operation actual results of all working procedures.

For example, the cloud server is implemented by using MindSphere, the production line PLC111 is connected to the MindSphere through an internet of things technology, so as to obtain operation actual results of devices corresponding to each work station on the production line from the MindSphere, perform analysis and optimization according to operation parameters of the devices in each work station, obtain an optimized operation instruction, and transmit the optimized operation instruction to the production line PLC111 or the manufacturing operation management system 23.

In one embodiment, the manufacturing operation management system 23 is further capable of recording historical execution information of each station in the virtual production line and feeding the historical execution information of each station in the virtual production line back to the product lifecycle management system and the enterprise resource management system. And the historical execution information of each work station is the historical operation actual results of each work station. Specifically, after the current work station is finished executing, the line PLC111 can transmit the execution information of the current work station to the manufacturing operation management system 23.

The product life cycle management system 21 can also optimize the production line design, product design and process planning according to the historical execution information of each station in the virtual production line. In one embodiment, the manufacturing operation management system 23 can perform analysis processing according to historical execution information of each station in the virtual production line within a period of time to obtain an optimized analysis result, and transmit the optimized analysis result to the product life cycle management system, and the product life cycle management system 21 can optimize production line design, product design and process planning according to the optimized analysis result. The manufacturing operation management system 22 is also capable of generating a production process report based on the historical execution information of each station in the virtual production line; the interactive display device 13 is also capable of displaying the production process report.

The working process of the demonstration system for discrete manufacturing of the embodiments of the present application is illustrated below with reference to fig. 1 to 3:

first, when the demonstration system is started to demonstrate the manufacturing process of a product, the production line PLC111 of the industrial personal computer 11 can simulate and control the execution process of a virtual production line according to the PLC program built in the production line PLC. For example, the virtual production line is provided with a loading station, an assembly station 1, an assembly station 2, a functional test station (FCT), a marking station, a quality inspection station, a maintenance station, and a packaging station.

Then, when the enterprise resource management system 22 transmits the obtained production order information to the manufacturing operation management system 23, the manufacturing operation management system 23 can obtain a process information according to the production order information and transmit the process information to the production line PLC 111. When the production line PLC111 acquires the process information of the product from the manufacturing operation management system 23, the automatic demonstration device 10 can start simulating the manufacturing process of the product. Specifically, after the system initialization or the execution of the previous production order information is completed, the production line PLC111 can obtain the current work order information corresponding to the current production order information from the manufacturing operation management system 23, and write the current work order information into the RFID component 17. In one embodiment, the manufacturing operation management system 23 can determine the current dispatch list information according to the process information of the product and/or the execution feedback information corresponding to the previous dispatch list information before the current dispatch list information, and write the current dispatch list information to the RFID tag 173 through the production line PLC111 and the RFID read/write head 172. For example, when the system is initialized, the production line PLC111 can first set the loading station as the station to be executed, and write the information corresponding to the loading station as the current dispatch list information into the RFID tag 173.

When the user selects the loading station through the interactive display device 13, the production line PLC111 can obtain station selection information of the loading station. Meanwhile, the production line PLC111 can also acquire the current dispatch list information through the RFID read/write head 172. The production line PLC111 of the industrial personal computer 11 can compare the work station selection information of the manually selected work station with the current work order information acquired by the RFID read-write head, and determine that the work station selection information of the manually selected work station matches the current work order information acquired by the RFID read-write head, and at this time, the industrial personal computer 11 can feed back the identification signal of the virtual work in process entering the work station to be executed to the manufacturing operation management system 23. The manufacturing operation management system 23 can issue the process parameters required by the loading work station or the program number corresponding to the process to the production line PLC111 according to the identification signal received when the virtual work in process enters the work station to be executed. At this time, the PLC component 14 can obtain the process parameters of the loading station or the program number corresponding thereto through the production line PLC111, and control the execution process of the loading station according to the received process parameters of the loading station or the program number corresponding to the process. The interactive display device 13 can display the execution process of the loading station.

When the execution of the loading station is finished, the production line PLC111 of the industrial personal computer 11 can transmit execution feedback information to the manufacturing operation management system 23. The manufacturing operation management system 23 can update the current dispatch list information according to the execution feedback information and/or process information of the loading station received by the manufacturing operation management system. After receiving the execution feedback information of the loading station, the manufacturing operation management system 23 can determine whether the execution condition of the loading station reaches the standard according to a preset standard. If the execution condition of the loading station meets the standard, the manufacturing operation management system 23 can set the assembly station 1 as the next station according to the process information, i.e., update the current dispatch list information to the assembly station 1. Thereafter, the manufacturing operation management system 23 instructs the line PLC111 to write the current dispatch list information into the RFID tag 173 through the RFID read/write head 172.

At this time, when the user selects the assembly station 1 through the interactive display device 13, the line PLC111 can acquire station selection information corresponding to the assembly station 1. Meanwhile, the production line PLC111 can also know the current dispatch list information through the RFID read/write head 172. The production line PLC111 can compare the work station selection information of the manually selected work station with the current work order information acquired by the RFID read-write head, and determine that the work station selection information of the manually selected work station matches the current work order information acquired by the RFID read-write head, and at this time, the production line PLC111 can feed back an identification signal indicating that a virtual work-in-process enters the work station to be executed to the manufacturing operation management system 23. The manufacturing operation management system 23 can transmit a calling program number corresponding to the process of the assembly station 1 to the production line PLC111 according to the received identification signal indicating that the virtual work in process enters the station to be executed. At this time, the PLC component 14 can simulate the execution process of the loading station according to the received calling program number of the process of the assembly station 1. The interactive display device 13 can display the execution process of the assembly station 1.

If the execution condition of the loading station does not reach the standard, the manufacturing operation management system 23 can use the loading station as the next station, i.e., the product needs to return to the loading station for continuous execution. At this time, the production line PLC111 can write the information on the loading station as the current dispatch list information into the RFID tag 173. Alternatively, if the execution condition of the loading station does not meet the standard, the manufacturing operation management system 23 can use the maintenance station as the next station, i.e., the product needs to enter the maintenance station for maintenance. At this time, the production line PLC111 can write information related to the maintenance work station or the loading work station as current dispatch list information into the RFID tag 173. After that, the execution process is similar to the above-mentioned execution process, and the specific reference can be made to the above description.

If the user selects the assembly station 2 through the interactive display device 13, the production line PLC111 can acquire station selection information corresponding to the assembly station 1. Meanwhile, the production line PLC111 can also know the current dispatch list information through the RFID read/write head 172. The production line PLC111 can compare the work station selection information of the manually selected work station with the current work order information acquired by the RFID read-write head, and determine that the work station selection information of the manually selected work station is not matched with the current work order information acquired by the RFID read-write head, and at this time, the production line PLC111 can feed back an identification signal indicating that a virtual work in process does not enter the work station to be executed to the manufacturing operation management system 23. The manufacturing operation management system 23 is capable of not transmitting the process parameters of the assembly station 2 to the automatic demonstration device 10 according to the received identification signal that the virtual work in process does not enter the station to be executed, so that the simulation execution of the next station cannot be entered when the virtual work in process does not enter the station to be executed.

In an embodiment, the industrial personal computer 11 can further transmit the historical execution information of each station on the virtual production line to the manufacturing operation management system 23, the manufacturing operation management system 23 can analyze and process the historical execution information of each station on the virtual production line to obtain an analysis result, and transmit the analysis result to the product life cycle management system 21, and the product life cycle management system 21 can optimize design data such as production line design data, process planning data, or product design data of the product according to the received optimization analysis result.

The embodiment of the application also provides a discrete manufacturing demonstration method, which is applied to the discrete manufacturing demonstration system and simulates the business process of an enterprise production system by configuring a virtual production line, process planning and the like. As shown in fig. 7, the above method can include the steps of:

s100, operating the production line PLC to simulate the control of a virtual production line comprising a plurality of work stations.

In one embodiment, the production line PLC is a soft PLC, which is mounted on the industrial personal computer 11. The production line PLC is embedded with a PLC program for executing the virtual production line, and can configure a virtual production line including a plurality of stations so as to simulate a control process for the virtual production line. The production line PLC program built in the production line PLC is a program configured and obtained based on the design data generated by the product lifecycle management system 21, or a program configured and obtained based on the design data provided by the enterprise.

In one embodiment, the production line PLC program embedded in the production line PLC is configured and obtained from the design data generated by the product lifecycle management system 21. Specifically, the production line PLC acquires a production line design model from the product lifecycle management system 21, and configures the virtual production line according to the production line design model.

S200, after system initialization or execution of previous production order information is completed, obtaining current work order information corresponding to the current production order information from the manufacturing operation management system through the production line PLC, and writing the current work order information into the RFID component, wherein the RFID component can identify whether a virtual work in process enters a to-be-executed work station in the virtual production line or not so as to trigger production execution of the to-be-executed work station.

In one embodiment, the RFID component 17 can represent a logistics device (not shown) in a virtual production line for carrying products or work in process and passing through various stations of the virtual production line. The RFID component 17 can record the station (i.e. the station to be executed) that the work in process or product should enter, identify and verify whether the work in process or product enters the station to be executed, and trigger the operation of the PLC component 14 after determining that the work in process or product enters the station to be executed, so as to simulate the execution process of a logistics device in the virtual production line.

In one embodiment, the RFID assembly 17 includes an RFID tag 173 and an RFID read/write head 172. The RFID tag 173 can store the current dispatch list information, and the current dispatch list information carried by the RFID tag 173 can be read and written by the RFID read/write head 172. Thus, the current dispatch list information can be read and/or written by the RFID read-write head, and finally interacts with the external manufacturing operation management system 23 through the production line PLC111 of the industrial personal computer 11, so that the product information can be conveniently simulated and identified, and processed and analyzed.

In one embodiment, before the production corresponding to the current production order information is executed, the production line PLC111 of the industrial personal computer 11 obtains the process information corresponding to the current production order information from the manufacturing operation management system 23, and transmits the process information to the PLC component 14. In the embodiment of the present application, process information is transmitted among the manufacturing operation management system 23, the industrial personal computer 11, the PLC component, and the like in the form of process parameters or a program number corresponding to a process. After the previous production order information is executed or the system is initialized, the production line PLC111 can obtain the current dispatch list information corresponding to the current production order information from the manufacturing operation management system 23, and write the current dispatch list information into the RFID tag 173 of the RFID component 14. The current work station information indicates which work station the product needs to enter for processing at the current time, namely the current work station information records the information of the work station to be executed.

And S300, when the virtual work in process enters the work station to be executed, triggering a PLC component to operate so as to control the execution process of the work station to be executed.

In one embodiment, when the RFID component 17 determines that the virtual work-in-process enters the station to be executed, the PLC component 14 can control the execution process of the station to be executed until the next station is switched to after the execution of the station to be executed is completed.

S400, demonstrating and simulating the virtual production line and the execution process of each work station in the virtual production line through an interactive display device and a data acquisition and monitoring system.

In one embodiment, the current work order information is generated by the manufacturing runtime system 23 based on process information, and/or execution feedback information for the previous work order prior to the current work order information. The process information may be obtained by the manufacturing operation management system 23 according to the production order information, wherein the process information includes an execution sequence (i.e., a process path) of a plurality of processes, and a process parameter corresponding to each process or a program number corresponding to a corresponding process. After the step S300, the method further includes the steps of:

after the execution of the previous work station determined by the previous work order information before the current work order information is finished, an execution feedback information is generated, and the execution feedback information corresponding to the previous work order information is transmitted to the manufacturing operation management system 23. This enables the manufacturing operation management system 23 to determine current dispatch information based on process information and/or execution feedback information for the last dispatch information.

In one embodiment, the PLC component 14 generates an execution feedback message after the last station execution determined by the last dispatch list information prior to the current dispatch list information is completed, and transmits the execution feedback message to the manufacturing operation management system 23 via the production line PLC. The manufacturing operation management system 23 is further capable of generating current work order information according to the process information of the product and/or the execution feedback information corresponding to the previous work order information, and transmitting the current work order information to the production line PLC. The production line PLC of the industrial personal computer 11 also writes the current dispatch list information into the RFID label.

In one embodiment, when the manufacturing operation management system 23 receives the execution feedback information corresponding to the previous work order information, the manufacturing operation management system 23 can further determine whether the execution condition of the to-be-executed work station determined by the previous work order information (for example, the to-be-executed work station determined by the previous work order information is marked as the previous work station) reaches the standard according to a preset standard. If the execution condition of the previous work station reaches the standard, the manufacturing operation management system 23 can take the next work station after the previous work station as the work station to be executed according to the process information, and take the information of the work station to be executed as the current dispatch list information. If the execution condition of the previous work station does not reach the standard, the manufacturing operation management system 23 can take the previous work station as the work station to be executed again, or take the maintenance work station as the work station to be executed. And the preset standard is a process standard corresponding to the work station.

In one embodiment, as shown in fig. 8, the step S200 further includes:

s210, acquiring work station selection information through the interactive display device.

In one embodiment, the interactive display device 13 can display the operation controls 130 to 139 corresponding to each work station, and the user can touch any one of the operation controls 130 to 139 displayed on the interactive display device 13 to select a corresponding work station. In one embodiment, when the interactive display device 13 receives a trigger signal of an operation control corresponding to a work station, the production line PLC obtains work station selection information.

S220, acquiring the current dispatch list information stored in the RFID label through an RFID read-write head.

For example, when an RFID tag (e.g., an RFID card) is placed in the sensing area of the RFID read/write head, the RFID read/write head 172 can read the current dispatch list information stored in the RFID tag and transmit the current dispatch list information to the line PLC.

And S230, comparing the work station selection information with the current work order information stored in the RFID label.

In one embodiment, the production line PLC111 compares the station selection information received by the production line PLC with the current dispatch list information stored in the RFID tag to determine whether the station selection information matches the current dispatch list information stored in the RFID tag.

S240, when the work station selection information is matched with the current dispatch list information stored in the RFID label, determining that the virtual work in process enters the work station to be executed. At this time, the PLC component 14 can control the execution process of the station to be executed.

In one embodiment, the user can switch and select the work station at will through the operation control on the interactive display interface 13, that is, when the user triggers the operation control corresponding to a certain work station, the work station is used as a selected work station, and the production line PLC of the industrial personal computer 11 can receive the work station selection information. And if the station selection information received by the production line PLC is matched with the current dispatch list information stored in the RFID label, the production line PLC determines that the virtual work-in-process enters the station to be executed, and triggers the PLC component to control the execution process of the station to be executed, wherein the station to be executed is the station selected by the user. If the station selection information received by the production line PLC of the industrial personal computer 11 is not matched with the current dispatch list information read by the RFID read-write head, it is determined that the virtual work in process does not enter the station to be executed, and at the moment, the PLC component 14 does not enter the execution process of the selected station.

For example, if the work station corresponding to the current dispatch list information is the work station 2, the work station information stored in the RFID tag is the work station information corresponding to the work station 2. When the user selects the work station 3 through the interactive display device 13, since the work station information of the work station 3 is not matched with the current dispatch list information in the RFID tag, at this time, the production line PLC determines that the selected work station 3 is failed to identify (i.e., the work station 3 is not a work station to be executed), and the PLC component 14 does not simulate the execution process of executing the work station 3. When the user selects the work station 2 through the interactive display device 13, at this time, the work station selection information received by the PLC component 14 is matched with the current dispatch list information read by the RFID read-write head, and at this time, the production line PLC determines that the work station 2 is successfully identified (i.e., the work station 2 is a work station to be executed), and triggers the PLC component 14 to operate, so as to control the execution process of the work station 2.

In one embodiment, the step S300 further includes:

s310, when the virtual work in process enters the station to be executed, acquiring the process parameters corresponding to the station to be executed from the manufacturing operation management system, and triggering the PLC component to control the execution process of the station to be executed according to the process parameters corresponding to the station to be executed.

In one embodiment, after determining that the virtual work-in-process enters the station to be executed, the production line PLC111 transmits the identification signal of the virtual work-in-process entering the station to be executed to the manufacturing operation management system 23 to request the manufacturing operation management system 23 to issue the corresponding process parameter of the station to be executed. The manufacturing operation management system 23 transmits the process parameters required by the station to be executed or the program number corresponding to the process to the PLC component 14 through the production line PLC, and the PLC component 14 controls the execution process of the station according to the obtained process parameters. In one embodiment, the process parameters include flow and process criteria for each process. In this way, the PLC module 14 can simulate the execution at the device level, and implement virtualization of the actual device to simplify the configuration of the system.

For example, if it is determined that the station 1 (for example, the station 1 is a loading station) is a station to be executed, the production line PLC requests the manufacturing operation management system 23 for a process parameter corresponding to the station 1 or a program number corresponding to the process. The manufacturing operation management system 23 issues a process parameter or a program number corresponding to the process to the production line PLC. The PLC component 14 acquires the process parameters corresponding to the work station 1 from the manufacturing operation management system 23, and simulates the execution process of the work station 1 according to the process parameters corresponding to the work station 1. The other stations are performed similarly to the station 1, and are not listed here.

In one embodiment, the above method further comprises the steps of:

transmitting historical execution information of each work station in the virtual production line to a manufacturing operation management system; specifically, after the PLC component 14 completes execution of the current work station, the historical execution information of each work station may be transmitted to the operation management system 23 for recording by the production line PLC 111. The manufacturing operation management system 23 can generate a production process report based on the historical execution information of each station in the virtual production line. The interactive display device 13 is also capable of presenting the production process report described above.

In one embodiment, the manufacturing operation management system 23 is further capable of transmitting historical execution information of each station in the virtual production line to the product lifecycle management system 21 to optimize the production line design, product design and process planning. In one embodiment, the manufacturing operation management system 23 can analyze and process the historical execution information of each station in the virtual production line for a period of time to obtain an analysis result, and transmit the analysis result to the product life cycle management system, and the product life cycle management system can optimize production line design, product design and process planning according to the optimized analysis result.

It should be clear that the method of the embodiment of the present application is consistent with the working principle of the demonstration system in the above embodiment, and specific reference may be made to the above description, which is not repeated herein.

Those skilled in the art will appreciate that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

In one embodiment, as shown in FIG. 6, the present application embodiment also provides a discretely manufactured play set 50. The presentation apparatus 50 comprises a memory 51 and a processor 52, the memory 51 storing a computer program, the processor 52 implementing the steps of any of the above methods when executing the computer program. In one embodiment, the computer program is a numerical control program or the like.

In one embodiment, the processor 52 of the presentation apparatus 50, when executing the above-described computer program, implements the steps of:

In one embodiment, the RFID component 17 can represent a logistics device (not shown) in a virtual production line that is configured to carry products and travel through various stations of the virtual production line. The RFID component 17 can record the station (i.e. the station to be executed) that the work in process or product should enter, identify and verify whether the work in process or product enters the station to be executed, and trigger the operation of the PLC component 14 after determining that the work in process or product enters the station to be executed, so as to simulate the execution process of a logistics device in the virtual production line.

In one embodiment, the RFID assembly 17 includes an RFID tag 173 and an RFID read/write head 172. The RFID tag 173 can store the current dispatch list information, which the RFID tag carries can be read and written by the RFID read/write head 172. Thus, the current dispatch list information can be read and/or written by the RFID read-write head, and finally interacts with the external manufacturing operation management system 23 through the production line PLC of the industrial personal computer 11, so that the product information can be conveniently simulated and identified, and processed and analyzed.

And S300, when the virtual work-in-process is determined to enter the work station to be executed, triggering a PLC component to operate so as to control the execution process of the work station to be executed.

In the embodiment of the present application, the working principle of the processor of the presentation apparatus is consistent with the execution process of each step in the foregoing method, and reference may be specifically made to the above description, which is not repeated herein.

In one embodiment, the present application further provides one or more storage media, on which a computer program is stored, and the computer program is executed by a processor to implement the steps of the method of any of the above embodiments. In one embodiment, a computer program in a storage medium, when executed by a processor, is capable of implementing the steps of:

It should be clear that, when the processor executes the computer program in the one or more storage media, the execution process of the processor is similar to the execution process in the method described above, and specific reference may be made to the above description, which is not described herein again.

The demonstration system, the demonstration method, the demonstration device and the storage medium which can be manufactured discretely are characterized in that a product period management system, an enterprise resource management system and a manufacturing operation management system are integrated on a terminal, the automatic demonstration equipment is controlled to execute by the manufacturing operation management system, the production line PLC of the industrial personal computer can control the execution process of the actual production line, the PLC component can control the execution process of the work station after the work station verification on the virtual production line succeeds, and the execution processes of the virtual production line and each work station on the virtual production line are demonstrated on the interactive display device, therefore, the whole process of actual production execution can be simulated and shown through the virtualized production line and the work station, and various data and data flow directions thereof related in the whole production execution process can be displayed to users through the data acquisition and monitoring system of the interactive display device and the industrial personal computer, so that the users can clearly understand the digital enterprise. Meanwhile, the demonstration system has the advantages of high integration level and convenience in carrying.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples 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 protection scope of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A discrete manufacturing demonstration system comprising:

a terminal (20), wherein a product life cycle management system (21), an enterprise resource management system (22) and a manufacturing operation management system (23) are integrated on the terminal (20);

the product life cycle management system (21) can carry out product design, process planning and production line design, and the product life cycle management system (21) can carry out data interaction with the enterprise resource management system (22) and the manufacturing operation management system (23); the enterprise resource management system (22) is capable of acquiring production order information and transmitting the production order information to the manufacturing operation management system (23); and

the automatic demonstration device (10) is connected with the terminal (20), and the automatic demonstration device (10) comprises an industrial personal computer (11), a PLC (programmable logic controller) component (14), an RFID (radio frequency identification) component (17) and an interactive display device (13);

the industrial personal computer (11) is carried with a data acquisition and monitoring system and a production line PLC; the production line PLC can simulate the control of a virtual production line comprising a plurality of work stations, and after system initialization or the execution of the previous production order information is completed, the current work order information corresponding to the current production order information is obtained from the manufacturing operation management system (23), and the current work order information is written into the RFID component (17);

the RFID component (17) can identify whether a virtual work-in-process enters a to-be-executed work station in the virtual production line or not so as to trigger the production execution of the to-be-executed work station;

the PLC component (14) can control the execution process of the station to be executed when the virtual work-in-process is determined to enter the station to be executed;

the interactive display device (13) can perform data interaction with the data acquisition and monitoring system to demonstrate the virtual production line and the execution process of each work station in the virtual production line.

2. The discrete manufacturing demonstration system of claim 1 wherein the RFID component (17) comprises an RFID tag capable of simulating a logistics apparatus for carrying a product;

the production line PLC can also generate execution feedback information after the execution of the last work station determined by the last work order information before the current work order information is finished, and transmit the execution feedback information corresponding to the last work order information to the manufacturing operation management system (23);

the manufacturing operation management system (23) can also obtain process information according to the production order information, generate the current work order information according to the process information and/or the execution feedback information of the previous work order information, and transmit the current work order information to the production line PLC;

the production line PLC can also write the current dispatch list information into the RFID label.

3. The discrete manufacturing demonstration system of claim 2 wherein the RFID component (17) further comprises an RFID read/write head;

the RFID read-write head (172) can acquire current dispatch list information stored in the RFID label and transmit the current dispatch list information stored in the RFID label to the production line PLC;

the production line PLC can also obtain work station selection information from the interactive display device (13), compare the work station selection information with current work order information stored in the RFID label, and when the work station selection information is matched with the current work order information stored in the RFID label, determine that the virtual work in process enters the work station to be executed, and trigger the PLC component (14) to operate.

4. The discrete manufacturing presentation system as claimed in claim 3, wherein the interactive display device (13) is further capable of displaying operational controls corresponding to each station;

and when the interactive display device (13) receives a trigger signal of an operation control corresponding to a work station, the production line PLC obtains the work station selection information.

5. The demonstration system for discrete manufacturing according to any one of claims 1 to 4, wherein the PLC component (14) is capable of acquiring the process parameters corresponding to the to-be-executed work station from the manufacturing operation management system (23) and controlling the execution process of the to-be-executed work station according to the process parameters corresponding to the to-be-executed work station.

6. The discrete manufacturing demonstration system according to any one of claims 1 to 4, wherein the data acquisition and monitoring system of the industrial personal computer (11) is further capable of controlling the start and stop of the equipment corresponding to each work station on the virtual production line, and simulating the operation performance of the equipment corresponding to each work station;

the execution process of each work station comprises the operation state of the equipment corresponding to the work station, the operation actual performance of the equipment corresponding to the work station, the execution progress of the work station and the execution result of the work station.

7. The demonstration system for discrete manufacturing according to any of the claims 1 to 4, wherein the demonstration system further comprises a numerical control device (30);

the numerical control device (30) is connected with the terminal and the automatic demonstration equipment (10), and the numerical control device (30) can configure numerical control processing parameters of one or a plurality of numerical control equipment in the work station of the virtual production line.

8. The discrete manufactured demonstration system according to any one of claims 1 to 4,

the product life cycle management system (21) can also generate production line design data and transmit the production line design data to the production line PLC;

and the production line PLC simulates the virtual production line according to the production line design data.

9. The demonstration system for discrete manufacturing according to claim 8, wherein the manufacturing operation management system (23) is further capable of recording historical execution information of each station in the virtual production line and feeding the historical execution information of each station in the virtual production line back to the product lifecycle management system (21);

the product life cycle management system (21) can also optimize production line design, product design and process planning according to historical execution information of each work station in the virtual production line;

the manufacturing operation management system (23) can also generate a production process report according to the historical execution information of each work station in the virtual production line;

the interactive display device (13) is also capable of displaying the production process report.

10. The demonstration system for discrete manufacturing according to any one of claims 1 to 4, further comprising a cloud server (40), wherein the cloud server (40) is connected to the production line PLC or the manufacturing operation management system (23);

the cloud server (40) can acquire the operation actual results of the devices in each work station on the virtual production line, analyze and optimize the operation actual results of the devices in each work station to obtain an optimized operation instruction, and transmit the optimized operation instruction to the production line PLC or the manufacturing operation management system (23).

11. A method of demonstrating discrete manufacturing, comprising the steps of:

operating a production line PLC to simulate the control of a virtual production line comprising a plurality of work stations;

12. The method as claimed in claim 11, wherein the step of obtaining a current dispatch list information corresponding to a current production order information from the manufacturing operation management system through the production line PLC and writing the current dispatch list information into the RFID component comprises:

and obtaining current work order information corresponding to current production order information from the manufacturing operation management system through the production line PLC, and writing the current work order information into the RFID label, wherein the current work order information is generated by the manufacturing operation system according to process information and/or execution feedback information corresponding to previous work order information before the current work order information.

13. The method of claim 12, further comprising the steps of:

and after the execution of the last work station determined by the last work order information before the current work order information is finished, generating execution feedback information, and transmitting the execution feedback information corresponding to the last work order information to the manufacturing operation management system.

14. The method of claim 12, further comprising the steps of:

acquiring selected information of a work station through the interactive display device;

acquiring current dispatching order information stored in an RFID label through an RFID read-write head;

comparing the work station selection information with current work order information stored in the RFID label;

and when the work station selection information is matched with the current dispatch list information stored in the RFID label, determining that the virtual work in process enters the work station to be executed, and triggering the PLC component to operate.

15. The method of claim 14, further comprising the steps of:

and when a trigger signal of an operation control corresponding to a work station is received through the interactive display device, the work station selection information is obtained.

16. The method according to any one of claims 11-15, wherein the step of triggering a PLC component to operate to control the execution process of the station to be executed upon determining that the virtual work-in-process enters the station to be executed further comprises:

and when the virtual work-in-process is determined to enter the station to be executed, acquiring the process parameters corresponding to the station to be executed from the manufacturing operation management system, and triggering the PLC component to control the execution process of the station to be executed according to the process parameters corresponding to the station to be executed.

17. The method according to any of claims 11-15, characterized in that the method further comprises the step of:

and acquiring production line design data from a product life cycle management system through the production line PLC, and configuring the virtual production line according to the production line design data.

18. The method of claim 17, further comprising the steps of:

and transmitting the historical execution information of each work station in the virtual production line to the manufacturing operation management system, generating a production process report by the manufacturing operation management system according to the historical execution information of each work station in the virtual production line, and displaying the production process report by the interactive display device.

19. A discretely manufactured demonstration apparatus, characterized in that the discretely manufactured demonstration apparatus comprises a memory (51) and a processor (52), the memory (51) storing a computer program, the processor (52) realizing the steps of the method according to any one of claims 11 to 18 when executing the computer program.

20. One or more storage media having a computer program stored thereon, wherein the computer program when executed by a processor implements the steps of the method of any one of claims 11-18.