Integrated network connection system for multiple production lines, and data transmission method

Abstract

The present application discloses an integrated network connection system for multiple production lines and a data transmission method. The integrated network connection system comprises front-end PLC units (1) arranged at a production stage layer, and front-end communication modules (2) connected to the front-end PLC units (1); the front-end communication modules (2) are used for sending front-end data of production stages stored in the front-end PLC units (1) to mid-level PLC units (3) at a production line layer; the mid-level PLC units (3) use mid-level communication modules (4) connected to the mid-level PLC units (3) to forward and aggregate the front-end data to a master PLC unit (5); the master PLC unit (5) is communicatively connected to a superordinate computer (6); the master PLC unit (5) is used for uniformly reading, aggregating and storing data generated by front-end applications of a plurality of production lines; the superordinate computer (6) directly accesses the master PLC unit (5) to read the data generated by the front-end applications of the production lines. In the present application, the master PLC unit (5) is used to integrate production states of all production lines in a production site, so that a worker can monitor the production states of all production lines online in real time on the master PLC unit (5) or the superordinate computer (6), thereby reducing labor input of factories.

Description

An integrated network connection system and data transmission method for multiple production lines Technical Field

[0001] This invention relates to the field of production line control and management technology, specifically to an integrated network connection system and data transmission method for multiple production lines. Background Technology

[0002] Some production bases have multiple production lines. For gypsum production processes, these include gypsum board production lines, light steel keel production lines, paint production lines, decorative board production lines, and strip saw production lines. Each production line is located in a different production workshop and operates independently. Each production line has its own independent production team, electrical control system, central control room, etc. There is no unified central control room to monitor all production lines and to uniformly read and modify certain important parameters online.

[0003] Summary of the Invention

[0004] The purpose of this invention is to provide an integrated network connection system and data transmission method for multiple production lines, so as to solve the technical problem in the prior art that there is no unified central control room to monitor all production lines and that it is impossible to uniformly read and modify certain important parameters online.

[0005] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0006] An integrated network connection system for multiple production lines, wherein the number of production lines is at least two, and each production line is divided into different production sections according to the production process, the integrated network connection system comprising:

[0007] A front-end PLC host is set in the production section layer, and a front-end communication module is connected to the front-end PLC host. The front-end communication module is used to send the front-end data of the production section stored in the front-end PLC host to the middle PLC host in the production line layer.

[0008] The intermediate PLC host uses an intermediate communication module connected to the intermediate PLC host to forward and summarize the front-end data to the main PLC host;

[0009] The main PLC host is connected to the host computer for communication.

[0010] The main PLC host is used to uniformly read, summarize and store the data generated by the front-end applications of multiple production lines. The host computer directly accesses the main PLC host to read the data generated by the front-end applications of the production lines.

[0011] In a preferred embodiment of the present invention, the number of intermediate communication modules is at least two, namely an access communication module and an output communication module. The access communication module is communicatively connected to the front-end communication module and is used to receive front-end data transmitted by the front-end communication module. The output communication module is communicatively connected to the main PLC host and is used to directly transmit the front-end data obtained by the access communication module to the main PLC host.

[0012] As a preferred embodiment of the present invention, all intermediate communication modules perform IP routing through the backplane bus, so that all intermediate communication modules can achieve routing between connected subnets.

[0013] The output communication module transmits the front-end data obtained by the access communication module directly to the main PLC host via IP routing.

[0014] In a preferred embodiment of the present invention, the front-end communication module and the access communication module use the same IP network segment, and the output communication module and the main PLC host use the same IP network segment, but the output communication module and the access communication module use different IP network segments.

[0015] In a preferred embodiment of the present invention, the main PLC host is connected to the output communication module via a network switch.

[0016] As a preferred embodiment of the present invention, when the number of front-end PLC hosts exceeds two, all front-end PLC hosts are connected to the same front-end communication module with the same IP network segment as the access communication module.

[0017] As a preferred embodiment of the present invention, the main PLC host is used to monitor and modify the operating parameters of multiple production sections of all production lines.

[0018] As a preferred embodiment of the present invention, all intermediate PLC hosts have the same IP network segment or all intermediate PLC hosts have different IP network segments.

[0019] As a preferred embodiment of the present invention, all front-end PLC hosts have the same IP network segment or all front-end PLC hosts have different IP network segments.

[0020] In addition, the present invention also provides a data transmission method for an integrated network connection system of multiple production lines, comprising the following steps:

[0021] The front-end PLC host sends the application data generated in real time by the corresponding production section to the intermediate communication module of the matching mid-end PLC host through the front-end communication module. The mid-end PLC host is used to manage the production line.

[0022] The intermediate communication module synchronously saves application data to the intermediate PLC host used to manage the production line and transmits it to the main PLC host through the intermediate communication module;

[0023] Real-time monitoring of application data across all production lines within the system is achieved by accessing the main PLC host.

[0024] The main PLC sends a modification command to change the working parameters of a certain production section. This modification command is transmitted to the corresponding front-end PLC through the intermediate communication module and the front-end communication module to adjust the operation of the corresponding production section.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] This invention utilizes a central PLC host to integrate the production status of all production lines in the production base. Therefore, staff can monitor the production status of all production lines online in real time via the central PLC host or a host computer, and can modify the parameters of each production line online, thereby achieving centralized operation control and optimizing the personnel structure to reduce the investment of factory personnel. Attached Figure Description

[0027] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0028] Figure 1 is a schematic diagram of the structure of the integrated network connection system for multiple production lines according to an embodiment of the present invention;

[0029] The labels in the diagram represent the following:

[0030] 1-Front-end PLC host; 2-Front-end communication module; 3-Mid-range PLC host; 4-Intermediate communication module; 5-Main PLC host; 6-Host computer;

[0031] 41-Access communication module; 42-Output communication module. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] As shown in Figure 1, the present invention provides an integrated network connection system for multiple production lines. The number of production lines is at least two, and each production line is divided into different production sections according to the production process. The network connection system includes a front-end PLC host 1 set in the production section layer, and a front-end communication module 2 connected to the front-end PLC host 1. The front-end communication module 2 is used to send the front-end data of the production section stored in the front-end PLC host 1 to the middle PLC host 3 in the production line layer.

[0034] The intermediate PLC host 3 uses the intermediate communication module 4 connected to the intermediate PLC host 3 to forward and summarize the front-end data to the main PLC host 5.

[0035] The main PLC host 5 is connected to the host computer 6 via communication.

[0036] The main PLC host 5 is used to uniformly read, summarize and store the data generated by the front-end applications of multiple production lines. The host computer 6 directly accesses the main PLC host 5 to read the data generated by the front-end applications of the production lines.

[0037] The main PLC host 5 is responsible for reading, summarizing and storing the data from the front-end production sections of each production line. If external systems need to remotely read production line data, they only need to access the main PLC host 5, without needing to access the intermediate PLC hosts 3 of each production line, thus not increasing the system program scanning cycle time of the intermediate PLC hosts 3 of each production line.

[0038] In addition, the host computer 6 and the main PLC host 5 share the same IP network segment. The main PLC host 5 is used to monitor and modify the operating parameters of multiple production segments on all production lines.

[0039] In order to enable data communication between the intermediate PLC host 3, which is used to manage the production work of a single production line, and the front-end communication modules 2 of multiple production sections of the production line, this embodiment has at least two intermediate communication modules 4, namely an access communication module 41 and an output communication module 42. When the number of intermediate communication modules 4 exceeds two, there is only one output communication module 42, while the others are access communication modules 41 that communicate with the front-end communication modules 2.

[0040] The access communication module 41 is connected to the front-end communication module 2 for receiving front-end data transmitted by the front-end communication module 2.

[0041] The output communication module 42 is connected to the main PLC host 5. The output communication module 42 is used to directly transmit the front-end data obtained by the access communication module 41 to the main PLC host 5.

[0042] Furthermore, in order to achieve real-time data transmission, reduce the time spent on data saving and reading operations of the intermediate PLC host 3, and realize the real-time synchronous transmission of data from the front-end production section to the main PLC host 5, all intermediate communication modules 4 are IP-routed through the backplane bus so that all intermediate communication modules 4 can achieve routing between connected subnets.

[0043] It should be further explained that the access communication module 41 is connected to the intermediate PLC host 3 through a hardware interface, so that the access communication module 41 can transmit the acquired front-end data to the intermediate PLC host 3. The output communication module 42 and the access communication module 41 are IP-routed through the backplane bus. Therefore, the output communication module 42 transmits the front-end data acquired by the access communication module 41 directly to the main PLC host 5 through IP routing. This can reduce the time spent by the output communication module 42 to read the front-end data stored in the main PLC host 5.

[0044] Therefore, there are two types of data transmission lines for the access communication module 41. One type of data transmission line is to transmit the front-end data obtained by the access communication module 41 to the intermediate PLC host 3 through the hardware interface and save it. The other type of data transmission line is to use IP routing to directly transmit the front-end data obtained by the access communication module 41 to the output communication module 42, and then send it to the main PLC host 5 by the output communication module 42.

[0045] In order for the access communication module 41 to receive the production section front-end data collected by the front-end communication module 2 and transmit the production section front-end data forwarded by the output communication module 42 to the main PLC host 5, the front-end communication module 2 and the access communication module 41 use the same IP network segment, and the output communication module 42 and the main PLC host 5 use the same IP network segment, but the output communication module 42 and the access communication module 41 use different IP network segments.

[0046] When there are enough communication modules 41 connected to the network, that is, multiple production lines are integrated and connected, the main PLC host 5 communicates with the output communication module 42 through the network switch.

[0047] When there are more than two front-end PLC hosts 1, all front-end PLC hosts 1 are connected to the same front-end communication module 2 IP network segment, and the same as the IP network segment used by the access communication module 41.

[0048] Furthermore, in the multi-production line integrated network connection system provided in this embodiment, the purpose is simply to integrate the front-end data of the production sections of multiple production lines into a unified main PLC host 5. The main PLC is used to uniformly read data for aggregation and storage. The host computer 6 can directly read data from the main PLC host 5, and the human-machine interface of the host computer 6 can unify the production parameters of multiple production lines, making it more convenient for staff to supervise.

[0049] The mid-range PLC host 3 and the front-end PLC host 1 do not need to be monitored again, so all mid-range PLC hosts 3 have the same IP network segment or all mid-range PLC hosts 3 have different IP network segments.

[0050] All front-end PLC host 1s have the same IP network segment, or all front-end PLC host 1s have different IP network segments.

[0051] Through the above work, the production status of all production lines in the production base can be integrated using the main PLC host 5. Therefore, staff can monitor the production status of all production lines online in real time on the main PLC host 5 or the host computer 6, and can modify the parameters of each production line online, realizing centralized operation control. Furthermore, it can optimize the personnel structure, reduce the investment of factory personnel, and provide strong data interaction support for the intelligent scheduling system of the digital and intelligent production base.

[0052] The data transmission method for the above-mentioned integrated network connection system for multiple production lines includes the following steps:

[0053] The front-end PLC host sends the application data generated in real time by the corresponding production section to the intermediate communication module of the matching mid-end PLC host through the front-end communication module. The mid-end PLC host is used to manage the production line.

[0054] The intermediate communication module synchronously saves application data to the intermediate PLC host used to manage the production line and transmits it to the main PLC host through the intermediate communication module;

[0055] Real-time monitoring of application data across all production lines within the system is achieved by accessing the main PLC host.

[0056] The main PLC sends a modification command to change the working parameters of a certain production section. This modification command is transmitted to the corresponding front-end PLC through the intermediate communication module and the front-end communication module to adjust the operation of the corresponding production section.

[0057] Using the data transmission method described above, staff can view the application data of all production lines in real time from the main PLC host, and can adjust the production sections of each production line to make corresponding changes.

[0058] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. An integrated network connection system for multiple production lines, wherein the number of production lines is at least two, and each production line is divided into different production sections according to the production process, characterized in that, The integrated network connectivity system includes: A front-end PLC host (1) is set in the production section layer, and a front-end communication module (2) is connected to the front-end PLC host (1). The front-end communication module (2) is used to send the front-end data of the production section stored in the front-end PLC host (1) to the middle PLC host (3) in the production line layer. The intermediate PLC host (3) uses the intermediate communication module (4) connected to the intermediate PLC host (3) to forward and summarize the front-end data to the main PLC host (5); The main PLC host (5) is connected to the host computer (6) for communication. The main PLC host (5) is used to uniformly read, summarize and store the data generated by the front-end applications of multiple production lines. The host computer (6) directly accesses the main PLC host (5) to read the data generated by the front-end applications of the production lines.

2. [Corrected according to Rule 91, 20.12.2024] A multi-production line integrated network connection system according to claim 1, characterized in that, The intermediate communication module (4) has at least two components, namely an access communication module (41) and an output communication module (42). The access communication module (41) is connected to the front-end communication module (2) and is used to receive front-end data transmitted by the front-end communication module (2). The output communication module (42) is connected to the main PLC host (5) and is used to directly transmit the front-end data obtained by the access communication module (41) to the main PLC host (5).

3. The integrated network connection system for multiple production lines according to claim 2, characterized in that, All intermediate communication modules (4) perform IP routing through the backplane bus so that all intermediate communication modules (4) can achieve routing between connected subnets; The output communication module (42) transmits the front-end data obtained by the access communication module (41) directly to the main PLC host (5) via IP routing.

4. The integrated network connection system for multiple production lines according to claim 3, characterized in that, The front-end communication module (2) uses the same IP network segment as the access communication module (41), and the output communication module (42) uses the same IP network segment as the main PLC host (5), while the output communication module (42) uses a different IP network segment than the access communication module (41).

5. The integrated network connection system for multiple production lines according to claim 4, characterized in that, The main PLC host (5) is connected to the output communication module (42) via a network switch.

6. The integrated network connection system for multiple production lines according to claim 4, characterized in that, When the number of front-end PLC hosts (1) exceeds two, the IP network segments of the front-end communication modules (2) connected to all front-end PLC hosts (1) are the same, and are the same as the IP network segments used by the access communication module (41).

7. The integrated network connection system for multiple production lines according to claim 1, characterized in that, The main PLC (5) is used to monitor and modify the operating parameters of multiple production sections of all production lines.

8. The integrated network connection system for multiple production lines according to claim 1, characterized in that, All mid-range PLC hosts (3) have the same IP network segment or all mid-range PLC hosts (3) have different IP network segments.

9. The integrated network connection system for multiple production lines according to claim 1, characterized in that, All front-end PLC hosts (1) have the same IP network segment or all front-end PLC hosts (1) have different IP network segments.

10. A data transmission method for an integrated network connection system of multiple production lines according to any one of claims 1-9, characterized in that, Includes the following steps: The front-end PLC host sends the application data generated in real time by the corresponding production section to the intermediate communication module of the matching mid-end PLC host through the front-end communication module. The mid-end PLC host is used to manage the production line. The intermediate communication module synchronously saves application data to the intermediate PLC host used to manage the production line and transmits it to the main PLC host through the intermediate communication module; Real-time monitoring of application data across all production lines within the system is achieved by accessing the main PLC host. The main PLC sends a modification command to change the working parameters of a certain production section. This modification command is transmitted to the corresponding front-end PLC through the intermediate communication module and the front-end communication module to adjust the operation of the corresponding production section.

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