title: Recreation activity monitoring system using proximity sensors.
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.
authors: School of Science and Engineering, Tokyo Denki University, Ishizaka, Hatoyama, Hiki, Saitama, 350-0394 Japan. tsuka@ieee.org
authors: Sosuke
authors: S
authors: Tsukamoto
authors: Yuko
authors: Y
authors: Tsumagari
authors: Hiroshi
authors: H
authors: Hoshino
authors: Toshiyo
authors: T
authors: Tamura
mesh_terms: D003195:Computer Communication Networks; D003201:Computers; D004867:Equipment Design; D006801:Humans; D008991:Monitoring, Physiologic / Q000295:instrumentation* / Q000379:methods; D057233:Radio Frequency Identification Device; D011998:Recreation; D015203:Reproducibility of Results; D013472:Sunlight; D017216:Telemedicine; D013686:Telemetry; D013997:Time Factors; D014159:Transducers; D014465:Ultrasonics; D014584:User-Computer Interface