Title:
MULTIPLE OPTICAL AXIS SENSOR
Document Type and Number:
WIPO Patent Application WO/2020/091397
Kind Code:
A1
Abstract:
A multiple optical axis sensor according to an embodiment of the present invention includes: a light projecting unit which includes a plurality of light projecting elements; and a light receiving unit which includes a plurality of light receiving elements that face the plurality of light projecting elements and receive light from the light projecting elements, wherein: when the amount of received light measured by at least one light receiving element among the plurality of light receiving elements is equal to or smaller than a first level and exceeds a second level that is smaller than the first level, the light projecting unit or the light receiving unit may output a first alarm through a display provided in the light projecting unit or the light receiving unit; when the amount of received light is equal to or smaller than the second level and exceeds a third level that is smaller than the second level, the light projecting unit or the light receiving unit may output a first self-diagnosis signal, which represents a reduced light reception state, through an output line while outputting a second alarm through the display unit; and when the amount of received light is equal to or smaller than the third level, the light projecting unit or the light receiving unit may output a third alarm, which represents a light blocked state, through the display, and may output a second self-diagnosis signal, which represents the light blocked state, through the output line.
Inventors:
LIM JAE JEONG (KR)
JEUNG SEONG HO (KR)
JEUNG SEONG HO (KR)
Application Number:
PCT/KR2019/014404
Publication Date:
May 07, 2020
Filing Date:
October 29, 2019
Export Citation:
Assignee:
AUTONICS CORP (KR)
International Classes:
G01V8/20; G01J1/44; G08B21/18; G08C17/02
Foreign References:
| KR20160008469A | 2016-01-22 | |||
| JP2012230872A | 2012-11-22 | |||
| JP2003317585A | 2003-11-07 | |||
| JP2010160008A | 2010-07-22 | |||
| JP2013218970A | 2013-10-24 |
Attorney, Agent or Firm:
KIM, Ki Moon (KR)
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