Scheduling system for information transmission among vehicles in multiple workshops

Abstract

The invention relates to an information transmission scheduling system among vehicles in multiple workshops, and belongs to the technical field of automobile production, the information transmission scheduling system among vehicles in multiple workshops comprises an upper service program module, a web service module, a kepware module and a database; according to the invention, three original central control systems are combined into one scheduling system, so that the development workload and the data interaction amount with the MES system are reduced, and the overall robustness and efficiency of the system are improved; for the MES system, three interfaces need to be developed to be in butt joint with three different central control systems originally, and now, only one interface needs to be developed to be in butt joint with one dispatching system, so that later maintenance and updating are facilitated.

Description

Technical Field

[0001] This disclosure belongs to the technical field of automobile production, and particularly relates to an information transfer and scheduling system between vehicles in multiple workshops. Background Art

[0002] In today's vehicle production enterprises, in order to balance cost and efficiency, information transfer between various workshops during the vehicle production process is inevitable. The key lies in how to accurately transfer vehicle information. Usually, each factory has an assembly shop, a painting shop, and a welding shop, and vehicle information only needs to be sequentially transferred among the three workshops. When it is necessary to transfer vehicle information between multiple workshops, the conventional method is that each workshop has its own upper-level scheduling system, and each system sends the VIN to the MES and then obtains the workshop code from the MES, as Figure 2 shown. When vehicle information is transferred between multiple workshops, the multiple systems are not coordinated, the development difficulty is large, it is easy to make mistakes, and exception handling is inconvenient.

[0003] Therefore, it is necessary to provide a new information transfer and scheduling system between vehicles in multiple workshops to solve the above technical problems. Summary of the Invention

[0004] The purpose of this disclosure is to provide an information transfer and scheduling system between vehicles in multiple workshops to solve the above problems.

[0005] This disclosure achieves the above purpose through the following technical solutions:

[0006] An information transfer and scheduling system between vehicles in multiple workshops, comprising:

[0007] An upper-level service program module, a web service module, a kepware module, and a database; the kepware module is connected to the database and both are connected to the upper-level service program module;

[0008] The upper-level service program module performs data interaction with the Manufacturing Execution System (MES) and stores the obtained data in the database;

[0009] The kepware module performs data interaction with the Programmable Logic Controllers (PLCs) of each workshop and the upper-level service program module, and can obtain data from the database;

[0010] The database is used to store the data obtained from the Manufacturing Execution System (MES);

[0011] The WEB service module is used for the interactive service of the human-machine interface.

[0012] As a further optimization solution of the present disclosure, the workshop includes a welding workshop, a painting workshop, and an assembly workshop, and a welding PLC, a painting PLC, and an assembly PLC are respectively arranged in the three workshops.

[0013] As a further optimization solution of the present disclosure, the kepware module reads the VIN of the vehicle from the programmable logic controller (PLC) of each workshop and sends the VIN to the upper service program module.

[0014] As a further optimization solution of the present disclosure, the kepware module obtains the VIN and the corresponding workshop code from the database.

[0015] As a further optimization solution of the present disclosure, the kepware module writes the VIN and the workshop code into the programmable logic controller (PLC) of the workshop.

[0016] As a further optimization solution of the present disclosure, the upper service program sends the VIN obtained from the kepware module to the manufacturing execution system (MES), and then obtains the VIN and the corresponding workshop code from the manufacturing execution system (MES).

[0017] As a further optimization solution of the present disclosure, the upper service program stores the VIN and the corresponding workshop code obtained from the manufacturing execution system (MES) in the database.

[0018] As a further optimization solution of the present disclosure, the upper service program module is connected to the manufacturing execution system (MES) through the HTTP protocol.

[0019] As a further optimization solution of the present disclosure, the kepware module is connected to the programmable logic controller (PLC) of each workshop through the OPC UA protocol.

[0020] As a further optimization solution of the present disclosure, the database is an oracle database.

[0021] The beneficial effects of the present disclosure are as follows:

[0022] The present disclosure combines the original three central control systems into one scheduling system, reduces the development workload and the data interaction volume with the MES system, and improves the overall robustness and efficiency of the system; for the MES system, originally it needed to develop three interfaces to dock with three different central control systems, but now it only needs to develop one interface to dock with one scheduling system, which is convenient for later maintenance and update. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the structural block diagram in the embodiment of the present disclosure;

[0024] Figure 2 It is a traditional multi-workshop vehicle scheduling information transmission flow chart;

[0025] Figure 3 This is a flow chart of multi-workshop vehicle scheduling information transmission after using the scheduling system in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0026] The present application will be described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0027] like Figure 1 As shown, a multi-vehicle information transmission and scheduling system includes a host service program module, a web service module, a kepware module and a database; the kepware module and the database are connected, and are both connected to the host service program module.

[0028] 1. Upper service program module:

[0029] Interact with MES (Manufacturing Execution System) to obtain all shop code information;

[0030] Store the acquired data in the database.

[0031] 2.kepware:

[0032] Read the current vehicle VIN (Vehicle Identification Number) from the PLC (Programmable Logic Controller);

[0033] Get the VIN and corresponding workshop code from the database

[0034] Write the VIN and workshop code to the PLC.

[0035] 3. Database:

[0036] Stores VIN and workshop code as well as other system operating data.

[0037] 4. WEB service module:

[0038] Mainly used for interactive services of human-computer interface.

[0039] The scheduling system of the present disclosure uses JS and VUE technologies for the front end, supporting display on both computer and mobile devices. The back end uses Springboot architecture technology to process background data. The database uses an Oracle database, which has more powerful functions. Set the code of the general welding and painting workshop where the vehicle production is located in the MES system, and transfer the workshop code information to this system before production. This system connects to the PLCs of each workshop through the OPC UA protocol. In the buffer area before the vehicle enters the workshop, the workshop code information is sent to the first PLC of the workshop's material handling equipment. Connect to the equipment through the OPC UA protocol and connect to the order system through the HTTP protocol, creatively realizing the transfer of detailed information on vehicle production change and lane change, greatly improving the coordination efficiency and accuracy of production resources in each workshop.

[0040] As Figure 3 shown, the process of the scheduling system of the present disclosure for transmitting vehicle scheduling information among multiple workshops is as follows:

[0041] 1. Set the workshop code information where each vehicle is produced in the MES system.

[0042] 2. Transmit the workshop code information to this scheduling system through the HTTP protocol.

[0043] 3. This system connects to the first PLC of each workshop through the OPC UA protocol.

[0044] 4. When the vehicle arrives at the workshop entrance, the equipment RFID reads the vehicle VIN number.

[0045] 5. The equipment PLC transfers the VIN number to this scheduling system.

[0046] 6. This scheduling system issues the next workshop code to the equipment PLC.

[0047] 7. The equipment PLC operates according to the workshop code to transfer the vehicle to the corresponding workshop.

[0048] The above-described embodiments only represent several implementation manners of the present disclosure, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present disclosure. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present disclosure, several modifications and improvements can still be made, and these all belong to the protection scope of the present disclosure.

Claims

1. A multi-workshop vehicle information transfer and scheduling system, characterized in that, It includes a host service program module, a web service module, a Kepware module and a database; the Kepware module is connected to the database and both are connected to the host service program module; The host service program module conducts data interaction with the Manufacturing Execution System (MES) and stores the acquired data in the database; The Kepware module conducts data interaction with the Programmable Logic Controllers (PLCs) in each workshop and the host service program module, and can obtain data from the database; The database is used to store the data acquired from the Manufacturing Execution System (MES); The WEB service module is used for the interactive service of the human-machine interface.

2. The multi-workshop vehicle information transfer and scheduling system according to claim 1, wherein The workshop includes a welding workshop, a painting workshop and a general assembly workshop, and a welding PLC, a painting PLC and a general assembly PLC are respectively arranged in the three workshops.

3. The multi-workshop vehicle information transfer and scheduling system according to claim 1, characterized in that The Kepware module reads the Vehicle Identification Number (VIN) of the vehicle from the Programmable Logic Controllers (PLCs) in each workshop and sends the VIN to the host service program module.

4. A multi-workshop vehicle information transfer and scheduling system according to claim 3, characterized in that, The Kepware module obtains the VIN and the corresponding workshop code from the database.

5. The information transfer and scheduling system between vehicles in multiple workshops according to claim 4, wherein The Kepware module writes the VIN and the workshop code into the Programmable Logic Controllers (PLCs) in the workshop.

6. The multi-workshop vehicle information transfer and scheduling system according to claim 1, characterized in that The host service program sends the VIN obtained from the Kepware module to the Manufacturing Execution System (MES), and then obtains the VIN and the corresponding workshop code from the Manufacturing Execution System (MES).

7. A multi-workshop vehicle information transfer and scheduling system according to claim 6, characterized in that, The host service program stores the VIN and the corresponding workshop code obtained from the Manufacturing Execution System (MES) into the database.

8. A multi-workshop vehicle information transfer and scheduling system according to claim 1, characterized in that, The host service program module is connected to the Manufacturing Execution System (MES) through the HTTP protocol.

9. A multi-workshop vehicle information transfer and scheduling system according to claim 1, characterized in that, The Kepware module is connected to the Programmable Logic Controllers (PLCs) in each workshop through the OPC UA protocol.

10. A multi-workshop vehicle information transfer and scheduling system according to claim 1, characterized in that, The database is an oracle database.

Images