Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PHOTOELECTRIC SENSOR
Document Type and Number:
WIPO Patent Application WO/2018/142897
Kind Code:
A1
Abstract:
This photoelectric sensor 1 is provided with: a plurality of light-emitting elements 101 for emitting light corresponding to transmission signals; light-receiving elements 102 which are provided so as to form pairs with the light-emitting elements 101, and which receive light; signal transmission cables 103 which are provided for each of the light-emitting elements 101, and which transmit the transmission signals and output the transmission signals to the light-emitting elements 101; signal transmission cables 104 which are provided for each of the light-receiving elements 102, and which transmit reception signals indicating the light received by the light-receiving elements 102; signal generation units 1073 which are provided for each of the signal transmission cables 103, and which generate the transmission signals and output the transmission signals to the corresponding signal transmission cables 103; a selection unit 1074 for selecting the signal generation unit 1073 to be operated; and an object detection unit 1076 which detects the presence of an object on the basis of the reception signals transmitted by the signal transmission cables 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:
JP2018/000815
Publication Date:
August 09, 2018
Filing Date:
January 15, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
AZBIL CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
G01V8/20; H01H35/00; H03K17/78
Foreign References:
JPS5427369U1979-02-22
JPH02135632A1990-05-24
JPH01120122A1989-05-12
JPS604877A1985-01-11
JPH09288940A1997-11-04
JP2015162386A2015-09-07
US5519784A1996-05-21
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)
Download PDF:



 
Previous Patent: OBJECT DETECTION SENSOR

Next Patent: PHOTOELECTRIC SENSOR