Safety assurance of assistive devices based on a two-level checking scheme

Hua-Sheng Lin; Yi-Chu Chang; Chiun-Fan Chen; Jer-Junn Luh; Ying-Han Chiou; Jin-Shin Lai; T-S Kuog

doi:10.1109/IEMBS.2005.1616099

Safety assurance of assistive devices based on a two-level checking scheme

Conf Proc IEEE Eng Med Biol Soc. 2005:2005:6927-9. doi: 10.1109/IEMBS.2005.1616099.

Authors

Hua-Sheng Lin¹, Yi-Chu Chang, Chiun-Fan Chen, Jer-Junn Luh, Ying-Han Chiou, Jin-Shin Lai, T-S Kuog

Affiliation

¹ Department of Electrical Engineering, National Taiwan University, Taipei, Taiwan, R.O.C.

PMID: 17281868
DOI: 10.1109/IEMBS.2005.1616099

Abstract

The increasing number of physically challenged individuals has boosted the demand of powered wheelchairs. This paper is on the subject of a DSP (Digital Signal Processors) based assistive system, which is associated with a two-level checking scheme. The assistive system takes on the M3S (Multiple Master Multiple Slave) regulation for the assurance of safety. The CAN (Control Area Networks) embedded module in the DSP provides robust transmission of information within the system. The hardware interfaces based on the two-level checking scheme is implemented in input devices (e.g. joystick, head control apparatus) and in output devices (e.g. manipulator, prime mover motors).