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Title:
LASER SCAN SENSOR
Document Type and Number:
Japanese Patent JP2013061187
Kind Code:
A
Abstract:

To provide a laser scan sensor which can achieve both prevention of erroneous detection of a small animal and accurate detection of a person who enters with a crawling movement in addition to maintaining performance to detect the person in a regular posture.

A laser scan sensor comprises: a laser range finder 110; a scan mechanism 120; a distance data acquisition section 130; a memory 160; a human body determination section 140; and a warning output control section 150. The human body determination section 140 detects an object with a possibility to correspond to a human body among acquired distance information; calculates a height and a width of the object on the basis of installed condition information stored in the memory 160; determines, when the calculated height of the object is equal to or higher than a predetermined height, that the object is the human body if detection of the object lasts for equal to or longer than a first predetermined period; and also determines, when the calculated height of the object is shorter than the predetermined height, that the object is the human body if the detection of the object lasts for equal to or longer than a second predetermined period which is longer than the first predetermined period.


Inventors:
IWAZAWA MASAHITO
Application Number:
JP2011000198707
Publication Date:
April 04, 2013
Filing Date:
September 12, 2011
Export Citation:
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Assignee:
OPTEX CO LTD
International Classes:
G01V8/12; G01B11/00; G01S17/88; G08B13/181; G08B25/04
Domestic Patent References:
JP2009110124A2009-05-21
JP2006243946A2006-09-14
JP2009093428A2009-04-30
Attorney, Agent or Firm:
Patent business corporation arc patent office