Wireless Tag System Using an Infrared Beam and an Electromagnetic Wave for Outdoor Facilities
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概要
- 論文の詳細を見る
A wireless tag system has been designed and developed for maintaining and managing outdoor communication facilities. This system employs an infrared (IR) beam and an electromagnetic wave with a radio frequency (RF), and is constructed using IR-RF tags, an IR commander, and an RF receiver. The IR command radiation with strong directivity enables a maintenance operator to recognize a target facility, and the RF response without directivity enables a management system to obtain data from within a large circular area. Solar and secondary batteries are also adopted as the power module in the tag to allow easy maintenance at long intervals. IR signal communication is possible up to a distance of 9 m, and RF signal communication is possible within a circle with a radius of 9 m.
- 社団法人電子情報通信学会の論文
- 1997-03-25
著者
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NAGAI Yasuhiro
NTT Interdisciplinary Research Laboratories
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SUZUKI Naobumi
NTT Interdisciplinary Research Laboratories
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Suzuki Nobuhiro
The Faculty Of Engineering Tokyo Institute Of Technology
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Suzuki N
Corporate Research & Development Center Toshiba Corporation
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Suda Hiroyuki
Ntt Access Network System Laboratories
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Nagai Yasuhiro
Ntt Information Hardware System Laboratories
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Nagai Yasuhiro
Musashino Electrical Communication Laboratory Nippon Telegraph And Telephone Public Corporation
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Nagai Yasuhiro
Ntt Electrical Communication Laboratories
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Suzuki N
Hitachi Ltd. Tokyo Jpn
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OHTANI Yoshimitsu
NTT Information Hardware System Laboratories
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ICHINOSE Yutaka
NTT Information Hardware System Laboratories
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