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Sensors 2017, 17(12), 2936;

Hazardous Object Detection by Using Kinect Sensor in a Handle-Type Electric Wheelchair

Department of Creative Engineering at National Institute of Technology, Tsuruoka College, Tsuruoka, Yamagata 997-8511, Japan
Division of Mathematics, Electronics and Informatics, Graduate School of Science and Engineering, Saitama University, Saitama 338-8570, Japan
Takaoka Toko Co., Ltd., Tokyo 110-0005, Japan
Author to whom correspondence should be addressed.
Academic Editor: Yasufumi Enami
Received: 8 October 2017 / Revised: 27 November 2017 / Accepted: 13 December 2017 / Published: 18 December 2017
(This article belongs to the Special Issue State-of-the-Art Sensors Technology in Japan 2017)
PDF [10076 KB, uploaded 18 December 2017]


To ensure the safety of a handle-type electric wheelchair (hereinafter, electric wheelchair), this paper describes the applicability of using a Kinect sensor. Ensuring the mobility of elderly people is a particularly important issue to be resolved. An electric wheelchair is useful as a means of transportation for elderly people. Considering that the users of electric wheelchairs are elderly people, it is important to ensure the safety of electric wheelchairs at night. To ensure the safety of an electric wheelchair at night, we constructed a hazardous object detection system using commercially available and inexpensive Kinect sensors and examined the applicability of the system. We examined warning timing with consideration to the cognition, judgment, and operation time of elderly people. Based on this, a hazardous object detection area was determined. Furthermore, the detection of static and dynamic hazardous objects was carried out at night and the results showed that the system was able to detect with high accuracy. We also conducted experiments related to dynamic hazardous object detection during daytime. From the above, it showed that the system could be applicable to ensuring the safety of the handle-type electric wheelchair. View Full-Text
Keywords: handle type electric wheelchair; mobility; elderly people; Kinect handle type electric wheelchair; mobility; elderly people; Kinect

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Kim, J.; Hasegawa, T.; Sakamoto, Y. Hazardous Object Detection by Using Kinect Sensor in a Handle-Type Electric Wheelchair. Sensors 2017, 17, 2936.

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