Capacitive seat sensors for multiple occupancy detection using a low-cost setup
Date
2013-02
Authors
Zeeman, Adriaan Siebrits
Booysen, Marthinus J.
Ruggeri, Giuseppe
Lagana, Bruno
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE -- Institute of Electrical and Electronics Engineers
Abstract
The Minibus public transportation sector and road
safety remains a significant challenge in Africa. We propose a
low cost system to monitor the taxi industry and encourage safe
driving. A low cost capacitive proximity sensor for seat occupancy
detection based on the loading mode capacitive sensing technique
is designed. The capacitive sensor uses a single electrode to
detect an occupant. We use ZigBee modules for a dynamic
wireless system integration where sensors can be added or
removed without modifications. A mathematical model of the
capacitive sensor is developed and we determine the capacitance
on the sensor’s electrode. The occupied capacitance is double
the unoccupied capacitance. Our results show that the proposed
capacitive sensor can distinguish clearly between an unoccupied
and occupied seat.
Description
The original publication is available at http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6505849
2013 IEEE International Conference
2013 IEEE International Conference
Keywords
Zigbee, Computerized instruments, Mathematical analysis, Capacitive proximity seat sensor, Proximity detectors
Citation
Zeeman, A. S., Booysen, M. J., Ruggeri, G. & Lagana, B. 2013. Capacitive seat sensors for multiple occupancy detection using a low-cost setup”, Industrial Technology (ICIT), 2013 IEEE International Conference on 25-28 February, Cape Town, South Africa.