Smart technology for sustainable production through selv-development
|KUNGLIGA TEKNISKA HÖGSKOLAN - Skolan för teknik och hälsa
|Funding from Vinnova
|SEK 500 000
|November 2017 - February 2019
|The strategic innovation programme for Production2030
Purpose and goal
The purpose of this study was to investigate 1) whether tactile vibration feedback can affect work postures / movements, i.e. contribute to improving work technique, and 2) whether the tactile vibration feedback gives knowledge that means that the participants receive knowledge through the feedback that can help improve the workplace, and 3) if tactile vibration feedback is useful as a warning for poor quality outcome. All three purposes proved to be positively fulfilled.
Expected results and effects
Self-training in industrial material picking work to improve work technique by tactile vibration feedback improved work postures for the upper arm and back. It was shown that the system of tactile vibration feedback created learning among the participants to improve workplace design. The critical picking moments were identified, and workplace measures were proposed. Tactile vibration feedback to indicate lack of quality outcome in the form of incorrect tightening torque with angular nut runners was judged very positive by the participants.
Planned approach and implementation
In the study, 13 industrial employees participated in a standardized material picking task. In a T-shirt, sensors were applied which measured upper arm and back angles wirelessly and sent measurement data to a mobile telephone. Two vibration sensors were attached to the T-shirt, one to the upper arm and one to the back. These gave tactile vibration feedback when unsuitable postures were taken. Two work sessions were performed without vibration feedback and two with, and the effect of the feedback training was analyzed. A nut runner was tested with vibration feedback at incorrect torque.