Whole vehicle assembling system based on intelligent station screen

Abstract

The invention discloses a whole vehicle assembly system based on intelligent station screens, which comprises a central control PLC, a vehicle data server, a back-end server, a message queue cluster and a plurality of station screens, and is characterized in that the central control PLC is used for controlling vehicle assembly procedures of a production line; the vehicle data server is used for storing a vehicle FIS instruction list; the rear-end server is in communication connection with the central control PLC to receive a vehicle control number, and the rear-end server is in communication connection with the vehicle data server to receive a vehicle FIS instruction list corresponding to the vehicle control number; the message queue cluster comprises a first server, a second server and a third server which are mutually stored and backed up, and the message queue cluster receives the vehicle FIS instruction list through the back-end server and generates a message queue; and the plurality of station screens are respectively arranged at preset stations, the plurality of station screens receive the vehicle FIS instruction list from the message queue according to a preset subscription theme, and the plurality of station screens respectively output assembly instruction information according to the vehicle FIS instruction list.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile assembly production lines, and in particular to a whole vehicle assembly system based on a smart workstation screen. Background Art

[0002] In the general assembly production line of the prior art, when an operator at a certain station wants to obtain automobile parts information, he needs to use a paper FIS instruction sheet. However, the paper FIS instruction sheet does not directly record the parts information. The operator needs to obtain it indirectly through a specific one or several PR number combinations in the paper FIS instruction sheet. The PR number is composed of 3 letters or numbers. There are 5 thorny problems in the process of using paper FIS assembly instruction sheets: to obtain parts information, the operator needs to remember different PR number combinations, and the parts information is easily misidentified, resulting in quality problems such as incorrect installation of automobile parts; there is no part information, no color, shape and picture information on the paper FIS instruction sheet, and the parts are not easy to distinguish; the paper FIS instruction sheet cannot reflect the quality problems of the vehicle, and the quality problems of the vehicle cannot be discovered in time; the quality problems of the vehicle cannot be reported in time; the paper FIS instruction sheet is a paper consumable and cannot be recycled. A car requires two A3 papers in front and back, which causes a lot of paper waste and increases consumable expenses every year. Summary of the invention

[0003] To solve at least one aspect of the above problems, the present invention provides a vehicle assembly system based on a smart workstation screen, comprising: a central control PLC, the central control PLC is used to control the vehicle assembly process of the production line; a vehicle data server, the vehicle data server is used to store a vehicle FIS instruction sheet; a back-end server, the back-end server is communicatively connected to the central control PLC to receive a vehicle control number, and the back-end server is communicatively connected to the vehicle data server to receive a vehicle FIS instruction sheet corresponding to the vehicle control number; a message queue cluster, the message queue cluster includes a first server, a second server and a third server that store and back up each other, the message queue cluster receives the vehicle FIS instruction sheet through the back-end server and generates a message queue; a plurality of workstation screens, the plurality of workstation screens are respectively arranged at preset workstations, the plurality of workstation screens receive the vehicle FIS instruction sheet from the message queue according to a preset subscription topic, and the plurality of workstation screens respectively output assembly instruction information according to the vehicle FIS instruction sheet.

[0004] Preferably, the workstation screen further comprises an electronic process card module, which outputs assembly process parameters in response to a user's query instruction, and which updates the assembly process parameters in response to a user's modification instruction.

[0005] Preferably, the workstation screen also includes a production inspection card module, which obtains the real-time process parameter value of the workstation corresponding to the workstation screen in real time by connecting to the central control PLC, and evaluates the real-time process parameter value based on preset evaluation parameters to output an evaluation result.

[0006] Preferably, the workstation screen also includes a maintenance inspection card module, which is used to receive an inspection status, including a normal state and an abnormal state. The maintenance inspection card module outputs abnormal state information in response to the abnormal state connection corresponding to the maintenance account.

[0007] Preferably, the workstation screen further includes an electronic pull-cord module, which outputs a fault prompt signal in response to a click operation of the user, and the back-end server receives the fault prompt signal through the workstation screen.

[0008] Preferably, the electronic pull rope includes any one or more combinations of a quality problem unit, an assembly problem unit, a tool failure unit, a personnel problem unit, a material problem unit, a process problem unit, a DBK problem unit and a logistics problem unit.

[0009] Preferably, the workstation screen receives and outputs current vehicle quality issues through the central control PLC.

[0010] Preferably, the workstation screen further includes an association module, and the association module is used to display assembly instruction information of vehicles associated with the workstation, and the vehicles associated with the workstation include information of vehicles that have passed and the next vehicle.

[0011] Preferably, the display screen is rotatably arranged at a preset station.

[0012] The vehicle assembly system based on the smart workstation screen of the embodiment of the present invention has the following beneficial effects: the workstation screen is an industrial Android all-in-one machine, which directly and dynamically displays the current vehicle part picture, color, shape and part number of the workstation on the smart workstation screen, obtains the part information vividly and concretely, avoids the wrong part identification due to human reasons, and reduces the assembly quality risk; the quality defect information of the current vehicle can be displayed on the smart workstation screen; the Anton pull rope function can be realized on the smart workstation screen to submit quality defect information; the workstation screen can be recycled and reused to reduce the waste of paper consumables. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to better understand the above and other purposes, features, advantages and functions of the present invention, reference may be made to the embodiments shown in the accompanying drawings. The same reference numerals in the accompanying drawings refer to the same components. It should be understood by those skilled in the art that the accompanying drawings are intended to schematically illustrate the preferred embodiments of the present invention and have no limiting effect on the scope of the present invention, and the components in the drawings are not drawn to scale.

[0014] Figure 1 A flowchart of a vehicle assembly system based on a smart workstation screen according to an embodiment of the present invention is shown;

[0015] Figure 2 A schematic diagram of an application scenario of a workstation screen of a vehicle assembly system based on a smart workstation screen according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0016] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0017] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc. may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0018] In order to at least partially solve one or more of the above-mentioned problems and other potential problems, an embodiment of the present disclosure proposes a whole vehicle assembly system based on a smart workstation screen, including: a central control PLC, a vehicle data server, a back-end server, a message queue cluster and multiple workstation screens, the central control PLC is used to control the vehicle assembly process of the production line; the vehicle data server is used to store the vehicle FIS instruction sheet; the back-end server is communicated with the central control PLC to receive the vehicle control number, and the back-end server is communicated with the vehicle data server to receive the vehicle FIS instruction sheet corresponding to the vehicle control number; the message queue cluster includes a first server, a second server and a third server that store and back up each other, and the message queue cluster receives the vehicle FIS instruction sheet through the back-end server and generates a message queue; multiple workstation screens are respectively arranged at preset workstations, and the multiple workstation screens receive the vehicle FIS instruction sheet from the message queue according to the preset subscription topic, and the multiple workstation screens output assembly instruction information according to the vehicle FIS instruction sheet.

[0019] Specifically, Figure 1 As shown, the central control PLC is the control center of the vehicle assembly workshop. The vehicle assembly workshop includes equipment for completing multiple assembly processes. The vehicle assembly process is controlled by the central control PLC operating and controlling each device.

[0020] The vehicle data server stores vehicle assembly information and vehicle model information of various vehicle models. The vehicle assembly information is stored in the form of a vehicle FIS (Fertigungs Informations und Steuerungs system production information and control system) instruction sheet.

[0021] The back-end server is used to connect the central control PLC and the vehicle data server to realize the call, storage and transmission of the output data of the workstation screen in the assembly workshop.

[0022] Message queue is a communication method between applications. The message publisher only publishes the message to the message queue without caring who will take the message. The message user (also called the subscriber) only takes the message from the message queue without caring who publishes it. RabbitMQ is used in this project. The backend server is the publisher, and each workstation screen is the subscriber. As shown in the figure, the first server MQ1, the second server MQ2 and the third server MQ3 form a message queue cluster. The message queue cluster is used to realize mutual backup of messages to improve the stability of the system. The backend server publishes the vehicle information to the topic Topic corresponding to the message queue, and the workstation screen obtains the vehicle information by subscribing to the topic Topic of the message queue. The RabbitMQ topic model is a more flexible and powerful message model that can filter and match according to the topic of the message. In the topic model, the message sender publishes the message to a switch, and the consumer creates a queue bound to the switch and specifies the topic of interest (represented by the routing key). The switch sends the message to the matching queue according to the routing key of the message, and only consumers who have subscribed to the corresponding topic will receive the message. This model is suitable for handling complex message routing requirements, and can classify and deliver messages based on multiple attributes, tags or keywords. According to the actual needs of the application, you can choose a suitable message model to achieve efficient and reliable message delivery. When designing and using these message models, you need to consider issues such as message order, duplication, storage, and consumer load balancing to ensure the stability and performance of the message system. RabbitMQ provides rich functions and flexible configuration options to meet various complex message processing needs.

[0023] The workstation screen adopts an industrial Android all-in-one machine. The workstation screen adopts a high-definition, high-response speed LCD screen, with clear display and convenient operation as the principle. In some embodiments, the display screen can be rotatably set at the preset workstation. Specifically, in order to facilitate the operator to view at any time, the display screen adopts a rotatable design and can adjust the angle freely. Multiple workstation screens are respectively connected to the central control PLC for communication, and the central control PLC is also used to control the startup and shutdown of multiple workstation screens and other operations.

[0024] Multiple workstation screens (workstation screen 1 to workstation screen n) are respectively set at multiple preset workstations in the assembly workshop. Figure 1 As shown, the back-end server obtains the vehicle control number (i.e., vehicle KNR number) of the workstation corresponding to the workstation screen from the central control PLC in real time. The back-end server sends the obtained vehicle KNR number to the vehicle data server (FIS server), and the vehicle data server returns the current vehicle assembly information to the back-end server. The back-end server publishes the vehicle assembly information to the corresponding Topic topic in the message queue. The workstation screen of the corresponding workstation will receive the assembly information of the current vehicle pushed by the message queue because it subscribes to the Topic topic of the message queue. The workstation screen displays the received vehicle assembly information for the convenience of operators to view. The vehicle assembly information is stored and transmitted through the vehicle FIS instruction sheet, which includes: engine model, transmission model, body color, interior color, vehicle number, four-wheel drive / two-wheel drive, various parts information (parts information includes pictures, shapes, colors, names, etc.), order generation time, etc. Based on the current vehicle information, the vehicle assembly instruction information is obtained, and the smart screen displays the vehicle assembly instruction information, which is convenient for operators to accurately assemble the vehicle through the vehicle assembly information. Parts information including pictures, shapes, colors, names, etc. is displayed to operators in concrete forms to avoid installing wrong parts and improve vehicle assembly quality.

[0025] In some embodiments, the workstation screen further includes an electronic process card module, which outputs assembly process parameters in response to a user's query instruction, and updates the assembly process parameters in response to a user's modification instruction.

[0026] Specifically, the user inputs a query instruction by clicking on the electronic process card module on the workstation screen, and the central control PLC outputs the current vehicle KNR number in response to the query instruction. The backend server sends the vehicle KNR number to the FIS server, and the FIS server returns the assembly process parameters of the vehicle at the current workstation according to the KNR number. The assembly process parameters include the assembly sequence of parts, tightening torque, angle size, etc. The electronic process card module is also used to receive modification instructions input by the user, and the modification instructions include any one or more of adding information, modifying information, and deleting information. The electronic process card module modifies the assembly process parameters based on the received modification instructions.

[0027] In some embodiments, the workstation screen also includes a production inspection card module, which obtains the real-time process parameter value of the workstation corresponding to the workstation screen in real time by connecting to the central control PLC, and evaluates the real-time process parameter value based on preset evaluation parameters to output an evaluation result.

[0028] Specifically, the preset evaluation parameters of the production inspection card module are to store the maximum and minimum values ​​of the equipment process parameters of this workstation. The production inspection card module collects the equipment process parameter values ​​of this workstation in real time, and displays the collected values ​​in the parameter bar in green if they are within the set maximum and minimum value range, in red if they exceed the maximum value, and in yellow if they are below the minimum value.

[0029] In some embodiments, the workstation screen also includes a maintenance inspection card module, which is used to receive inspection status, including normal status and abnormal status. The maintenance inspection card module outputs abnormal status information in response to the abnormal status connection corresponding to the maintenance account.

[0030] Specifically, the operator performs manual inspection of the process equipment at a preset time every day (for example, 8 a.m.). There is an inspection button for the corresponding equipment on the workstation screen. Clicking the green button indicates that the equipment is in normal condition. Clicking the red button indicates that the equipment is in abnormal condition, and the equipment information will be pushed to the mobile phone of the corresponding maintenance personnel in the form of a DingTalk message push. The maintenance inspection card module is used to perform electronic inspection of the workstation equipment maintenance.

[0031] In some embodiments, the workstation screen further includes an electronic pull rope module, which outputs a fault prompt signal in response to a user's click operation, and the backend server receives the fault prompt signal through the workstation screen. In some embodiments, the electronic pull rope includes any one or more of a quality problem unit, an assembly problem unit, a tool failure unit, a personnel problem unit, a material problem unit, a process problem unit, a DBK problem unit, and a logistics problem unit.

[0032] Specifically, the Anton pull rope is replaced by the nine-square grid of quality problems, assembly problems, tool failures, personnel problems, material problems, process problems, DBK problems, and logistics problems in the electronic pull rope module. The large-line quality shutdown and fault reporting functions are realized. The back-end server generates a maintenance order in response to the received fault prompt signal, and connects to the maintenance personnel responsible for the workstation through the back-end server. The maintenance personnel will get the reported information in DingTalk.

[0033] In some embodiments, the workstation screen receives and outputs the current vehicle quality issues through the central control PLC. Figure 2 As shown, the user can automatically display the current vehicle quality defect information through the workstation screen, and the quality information can be discovered in time; the current vehicle quality defect information can be submitted through the workstation screen, and the quality defect information can be reported in time to avoid omissions.

[0034] In some embodiments, the workstation screen further includes an association module, which is used to display assembly instruction information of vehicles associated with the workstation, and the vehicles associated with the workstation include information of vehicles that have passed and the next vehicle.

[0035] Specifically, Figure 2 As shown, the smart workstation screen displays the current vehicle information, the passing vehicle information, and the next vehicle information.

[0036] In some embodiments, Figure 2 As shown, the workstation screen also includes a change point management module, through which the change information of the process parameters of the workstation equipment is monitored.

[0037] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the market, or to enable other persons of ordinary skill in the art to understand the present invention.

Claims

1. A vehicle assembly system based on a smart workstation screen, characterized in that: include: Central control PLC, which is used to control the vehicle assembly process of the production line; A vehicle data server, the vehicle data server being used to store vehicle FIS instruction sheets; A back-end server, the back-end server is communicatively connected with the central control PLC to receive a vehicle control number, and the back-end server is communicatively connected with the vehicle data server to receive a vehicle FIS instruction sheet corresponding to the vehicle control number; A message queue cluster, the message queue cluster comprising a first server, a second server and a third server that store and back up each other, the message queue cluster receiving a vehicle FIS instruction sheet through the back-end server and generating a message queue; A plurality of workstation screens are respectively arranged at preset workstations, the plurality of workstation screens receive the vehicle FIS instruction sheet from the message queue according to a preset subscription topic, and the plurality of workstation screens respectively output assembly instruction information according to the vehicle FIS instruction sheet.

2. The system according to claim 1, characterized in that The workstation screen further comprises an electronic process card module, which outputs assembly process parameters in response to a user's query instruction and updates the assembly process parameters in response to a user's modification instruction.

3. The system according to claim 2, characterized in that The workstation screen also includes a production inspection card module, which obtains the real-time process parameter value of the workstation corresponding to the workstation screen in real time by connecting to the central control PLC, and evaluates the real-time process parameter value based on preset evaluation parameters to output an evaluation result.

4. The system according to claim 3, characterized in that The workstation screen also includes a maintenance inspection card module, which is used to receive an inspection status, including a normal state and an abnormal state. The maintenance inspection card module outputs abnormal state information in response to the abnormal state connection corresponding to the maintenance account.

5. The system according to claim 4, characterized in that The workstation screen also includes an electronic pull-cord module, which outputs a fault prompt signal in response to a click operation of a user, and the back-end server receives the fault prompt signal through the workstation screen.

6. The system according to claim 5, characterized in that The electronic pull rope includes any one or more combinations of a quality problem unit, an assembly problem unit, a tool failure unit, a personnel problem unit, a material problem unit, a process problem unit, a DBK problem unit and a logistics problem unit.

7. The system according to claim 1, characterized in that The workstation screen receives and outputs the current vehicle quality issues through the central control PLC.

8. The system according to claim 1, characterized in that The workstation screen further includes an association module, which is used to display assembly instruction information of vehicles associated with the workstation, and the vehicles associated with the workstation include information of vehicles that have passed and the next vehicle.

9. The system according to claim 1, characterized in that The display screen is rotatably arranged at a preset workstation.

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