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Title:
OBJECT DETECTION SENSOR
Document Type and Number:
WIPO Patent Application WO/2018/142896
Kind Code:
A1
Abstract:
This object detection sensor 1 is provided with: a plurality of light-emitting elements 101 which emit light obtained by converting a transmission signal; a single light-receiving element 102 for receiving light; signal transmission cables 103 which are provided for each of the light-emitting elements 101, and which transmit the transmission signal and output the transmission signal to the light-emitting elements 101; a signal transmission cable 104 for transmitting a reception signal indicating the light received by the light-receiving element 102; a selection unit 1083 for selecting the signal transmission cable 103 to output the transmission signal; a signal generation unit 1084 for generating the transmission signal; a switching unit 106 which outputs the generated transmission signal to the selected signal transmission cable 103; and an object detection unit 1086 which detects the presence of an object on the basis of the reception signal transmitted by the signal transmission cable 104.

Inventors:
KOSHI, Toshiki (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 19, 〒1006419, JP)
NOHARA, Isao (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 19, 〒1006419, JP)
IIJIMA, Shinji (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 19, 〒1006419, JP)
Application Number:
JP2018/000813
Publication Date:
August 09, 2018
Filing Date:
January 15, 2018
Export Citation:
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Assignee:
AZBIL CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
G01V8/20; H01H35/00; H03K17/78
Foreign References:
JPH05297150A1993-11-12
JPS604877A1985-01-11
JPH02135632A1990-05-24
JPH01120122A1989-05-12
JP2015162386A2015-09-07
JPS594487U1984-01-12
JP2009124666A2009-06-04
JPH09288940A1997-11-04
US5168163A1992-12-01
Attorney, Agent or Firm:
TAZAWA, Hideaki et al. (Akasaka Sanno Center Bldg. 5F, 12-4 Nagata-cho 2-chome, Chiyoda-k, Tokyo 14, 〒1000014, JP)
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