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Automobile assembly is a typical and specific application scenario of intelligent manufacturing.
1) Scenario requirements
As a necessary link of automobile production, automobile assembly line involves many parts and processes, and plays an important role in ensuring automobile quality and production schedule. The management of automobile production line often has the following problems: the efficiency and timeliness of personnel management are poor; Improper management of equipment error prevention indirectly affects product quality; Traditional manual and RFID identification methods lead to the tracking and monitoring of vehicle assembly progress is more error-prone, and the cost is higher. Therefore, it is necessary to realize the full traceability of each vehicle in the workshop assembly line and the highly transparent visualization of the operation process through real-time positioning technology, and significantly improve the operation efficiency while standardizing the operation process.
2) Solution ideas
The "5G+ Bluetooth AOA high-precision indoor positioning technology" is integrated to provide a solution of 5G indoor digital distributed micro-power base station cascaded Bluetooth positioning base station. With the help of 5G communication network's large broadband, low delay characteristics, and large-scale networking of Bluetooth positioning base station, multi-base station transverse Angle joint solution method, To achieve sub-meter positioning coverage of the assembly line, workshop and other areas, the use of Bluetooth AoA precise location awareness technology to help the automotive manufacturing and assembly of various segments of the space intelligent construction, and to a certain extent to meet the low-cost, low-power, multi-type terminals, sub-meter positioning needs. At the same time, the location big data platform can also be combined to provide visual display and management for the scene, improve the efficiency of automobile manufacturing and assembly operations, and better ensure product quality.
3) Application scenario
The 5G+ Bluetooth AOA high-precision indoor positioning solution uses the location solution engine to return the data of the positioning micro-base station, and relies on the patented algorithm with high angular resolution to solve the label position coordinates. The solution engine is deployed in the MEC, which can play the advantages of 5G network with high speed, low delay and large connection, thus improving the utilization efficiency and value-added value of the network. Specific application functions are as follows:
Realize real-time positioning and automatic information push of decorated vehicles. By installing positioning and communication base stations on the production line, bind the positioning labels of assembly vehicles to confirm the unique ID identification, so as to realize the high-precision and real-time push of vehicle information of each station on the production line, and guide the operators to follow the prompted models and operation processes. The vehicle can be assembled quickly on the production line and the assembly error rate can be reduced.
Status tracking of repaired vehicles. For repaired vehicles, the specific vehicle that needs to be repaired can be quickly located on the map in real time. At the same time, based on the multi-dimensional degree of vehicle location information and vehicle maintenance status information, the real-time monitoring of vehicle status in the rework area is realized.
In view of the problem of matching fasteners and tools in automotive assembly, UWB position sensor is added to power tools to locate the position of important tools in the workshop in real time, quickly search and find the location of appropriate tools, and increase the search efficiency; In addition, through the UWB position sensor on the appliance, check the tightening parts of the parts, set the tightening sequence, and prevent the error of the operation sequence, so as to ensure the correct tightening parts and tightening accuracy. By judging whether there is a car in the specific production area, the state of the equipment without a car is still locked, and the operator cannot start it without permission.
5G+ Bluetooth AOA positioning technology is used to combine Bluetooth AOA positioning technology with 5G to solve the shortcomings in the business management of the automotive production line. It not only effectively solves the problems of high cost and insufficient concurrent capacity of large-scale label application in the automotive assembly scene, but also solves the problem of positioning data transmission through the characteristics of 5G's large bandwidth and low delay technology. At the same time, 5G base stations and Bluetooth base stations are jointly deployed and have a common data transmission channel, greatly reducing deployment costs and maintenance costs.
