Professor Johan Stahre is the leader of Chalmers’ manufacturing research effort in MyCar, a pan-European research project. Together with Volvo Technology and the University of Skövde he has developed this highly usable information tool.
“In assembly work of the future we believe that iPhone-based work tools could be just as common as powered hand-tools and automated screwdrivers are today,” Johan Stahre says. “The new tools are important to productivity but also to environmental and social sustainability of complex assembly work. The basic assumption is that humans are the most important and flexible assets available.”
Each day, tens of thousands of pages of assembly instructions are printed, at thousands of assembly plants throughout the world. If wearable information tools were implemented on a broad scale, huge amounts of paper would be saved, allowing for a radical increase in environmental sustainability. Such tools would result in productivity gains and provide efficient support for lean production. Operators receive clear, accurate and updated instructions. Late and rapid product changes could be made more easily to accommodate customer requirements.
Assembly operator Daniel Kotala is testing the new wearable information tool at the pilot plant at Volvo Trucks. The iPodTouch attached to his jacket presents all the necessary instructions for the truck chassis assembly task he is performing.
In automotive assembly plants, operators are required to handle large and increasing numbers of instructions for the variety of trucks and cars that we as customers wish to buy. The operators need to move around large truck chassis and it is sometimes difficult to handle paper-based instructions or look at computer screens when performing assembly operations. With new, wearable information tools, operators are supplied with the information they need, when and where they need it. This is a new kind of smart decision support where correct levels of cognitive automation have been analysed by MyCar researchers.
The work environment is enhanced when operators can concentrate on core assembly tasks instead of having to move around to read and memorise assembly instructions.
“With iPhone-based tools, operators are able to use e-mail, sms text messaging, and the telephone at their workplace, just like any office,” Johan Stahre says. “The change in work content offers freedom of choice, makes assembly work more attractive, and enhances social sustainability. Important factors considered in the MyCar project are company and employee needs in order to be in a better position to attract a future workforce.”
Concept prototypes for new iPhone- or iPodTouch-based information systems are currently being field tested at the Volvo Trucks pilot assembly plant. However, it will still be some time before the concept can be fully realised and industrialised.
“The operators are very positive to the new opportunities that are opened up with this information tool. Several operators who tested it said that they would to start using the new iPodTouch tool tomorrow if they could,” Professor Stahre concludes.
FACT FILE: Information tools for assembly system operators
Methods for analysing assembly systems from an information perspective and concept prototypes for the iPhone/iPodTouch-based information tool have been developed through co-operation between Chalmers, Volvo Technology, Volvo Trucks, the University of Skövde, and the Greek companies CASP and Emphasis Telematics.
This collaboration is a sub-project of the pan-European project MyCar, which aims to radically increase the flexibility of automotive manufacturing. MyCar is creating new opportunities for extreme customer orientation and mass customisation of cars and trucks. Human-centred methods and tools to enhance the speed and accuracy of information support for final assembly operators are important to the MyCar end-result. Chalmers’ contribution to the European project is part of our concerted, long-term effort towards achieving sustainable production.