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1. US20120113410 - Laser scanning sensor

Office United States of America
Application Number 13384425
Application Date 16.07.2010
Publication Number 20120113410
Publication Date 10.05.2012
Grant Number 08681323
Grant Date 25.03.2014
Publication Kind B2
IPC
G01C 3/08
GPHYSICS
01MEASURING; TESTING
CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
3Measuring distances in line of sight; Optical rangefinders
02Details
06Use of electric means to obtain final indication
08Use of electric radiation detectors
CPC
G08B 13/183
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
13Burglar, theft or intruder alarms
18Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength
181using active radiation detection systems
183by interruption of a radiation beam or barrier
G01S 7/4813
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
481Constructional features, e.g. arrangements of optical elements
4811common to transmitter and receiver
4813Housing arrangements
G01S 7/497
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
497Means for monitoring or calibrating
G01S 17/026
G01S 17/42
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02Systems using the reflection of electromagnetic waves other than radio waves
06Systems determining position data of a target
42Simultaneous measurement of distance and other co-ordinates
G01S 2007/4975
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
497Means for monitoring or calibrating
4975of sensor obstruction by, e.g. dirt- or ice-coating, e.g. by reflection measurement on front-screen
Applicants Iwasawa Masashi
Optex Co., Ltd.
Cho Seongho
Inventors Iwasawa Masashi
Cho Seongho
Agents Wenderoth, Lind & Ponack, L.L.P.
Priority Data 2009169141 17.07.2009 JP
Title
(EN) Laser scanning sensor
Abstract
(EN)

A laser scanning sensor includes a laser range finder, a scanning mechanism, a data acquisition portion, a dirt determination portion, an alert output control portion and a memory. The laser range finder is arranged inside a housing having an opening portion, and the opening portion is covered with a lens cover that can transmit laser light. In the dirt determination portion, a predetermined threshold to be compared with a received light level is changed based on maximum detection distance information in each measurement direction.

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