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1. EP2455780 - LASER SCAN SENSOR

Office European Patent Office
Application Number 10799913
Application Date 16.07.2010
Publication Number 2455780
Publication Date 23.05.2012
Publication Kind A4
IPC
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 coordinates
G01S 7/48
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/, G01S15/, G01S17/127
48of systems according to group G01S17/58
G01S 17/02
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
G08B 13/181
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
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
CPC
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 17/04
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
04Systems determining the presence of a target
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
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
Applicants OPTEX CO LTD
Inventors IWASAWA MASASHI
CHO SEONGHO
Designated States
Priority Data 2009169141 17.07.2009 JP
2010062033 16.07.2010 JP
Title
(DE) LASERSCAN-SENSOR
(EN) LASER SCAN SENSOR
(FR) CAPTEUR À BALAYAGE LASER
Abstract
(EN)
A laser scanning sensor (100) of an embodiment of the present invention includes a laser range finder (110), a scanning mechanism (120), a data acquisition portion (130), a dirt determination portion (140), an alert output control portion (150) and a memory (160). The laser range finder (110) is arranged inside a housing (101) having an opening portion, and the opening portion is covered with a lens cover (116) that can transmit laser light. In the dirt determination portion (140), a predetermined threshold to be compared with a received light level is changed based on maximum detection distance information in each measurement direction.

(FR)
L'invention concerne un capteur à balayage laser (100) qui est doté d'un télémètre laser (110), d'un mécanisme de balayage (120), d'une unité d'acquisition de données (130), d'une unité d'évaluation de contamination (140), d'une unité de commande d'émission de notification (150) et d'une mémoire (160). Le télémètre laser (110) est disposé à l'intérieur d'un boîtier (101) qui est doté d'une ouverture, et l'ouverture est recouverte d'un cache d'objectif (116) qui est transparent vis-à-vis des faisceaux lasers. Dans l'unité d'évaluation de contamination (140), une valeur seuil prescrite, à laquelle le niveau de la lumière reçue est comparé, est modifiée en fonction des informations de plage maximale détectées dans chaque direction de mesure.

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