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In production line assembly, cars on computer-assisted process systems (power screwdriver systems, testing systems and pick-to-light systems) are often still identified by scanning the car ID manually using a barcode scanner.
Automation of Car Assembly
The corresponding assembly order is then automatically loaded to the process system to be carried out. Scanning manually is both laborious (many tens of thousands of times every day) and error-prone. The aim is to enable the cars to be identified and assigned to the process system fully automatically. The assembly order - unique to the car and the process system - should be loaded reliably, in real-time and without manual interaction.
Continuous Location of Cars and Tools
The solution is based on the Ubisense Real-Time Location System to track cars and tools with high resolution. The assignment of a process system (e.g. power screwdriver) to an individual car is made by evaluating the spatial relationship between the system component and the car in real time. The
manual scanning process can be entirely dispensed with: the trigger by which the assembly order is loaded to the relevant system is the entry of the tool or test component into one of the zones assigned to the car.
In the car factory, around 1000 vehicles are assembled simultaneously and worked on using 150 power screwdrivers.