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Updated: Jun 18, 2026

Using a Real-Time Locating System to Measure Walking Activity Associated with Wandering Behaviors Among Institutionalized Older Adults
Published on: February 8, 2019
Recreation activity monitoring system using proximity sensors
Sosuke Tsukamoto1, Yuko Tsumagari, Hiroshi Hoshino
1School of Science and Engineering, Tokyo Denki University, Ishizaka, Hatoyama, Hiki, Saitama, 350-0394 Japan. tsuka@ieee.org
Abstract:
This paper describes a recreational-activity monitoring system that records the existence of tools (removed or not from a predefined place) that are used in the recreation activities. The system is composed of three types (infrared, ultrasonic, and RFID) of proximity sensors to adapt to various sizes of the target object. The timings of when the target object was removed and returned are monitored. Simple experiments showed that the detectable range of the system was approximately 60 approximately 100 mm, and concluded that the infrared and ultrasonic sensors were useful for relatively large objects, and the RFID technology was suitable for small objects.

