WO2009115202A3 - Optical sensor and method for detecting objects - Google Patents

Optical sensor and method for detecting objects Download PDF

Info

Publication number
WO2009115202A3
WO2009115202A3 PCT/EP2009/001643 EP2009001643W WO2009115202A3 WO 2009115202 A3 WO2009115202 A3 WO 2009115202A3 EP 2009001643 W EP2009001643 W EP 2009001643W WO 2009115202 A3 WO2009115202 A3 WO 2009115202A3
Authority
WO
WIPO (PCT)
Prior art keywords
light
light sources
detecting
optical sensor
scattered
Prior art date
Application number
PCT/EP2009/001643
Other languages
German (de)
French (fr)
Other versions
WO2009115202A2 (en
Inventor
Marcus Thien
Kin Hing Chin
Yau Tine Chong
Weng Cheong Chow
Original Assignee
Pepperl + Fuchs Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pepperl + Fuchs Gmbh filed Critical Pepperl + Fuchs Gmbh
Priority to KR1020107023309A priority Critical patent/KR101275075B1/en
Priority to CN2009801099717A priority patent/CN101978291A/en
Priority to EP09722314.3A priority patent/EP2257840B1/en
Publication of WO2009115202A2 publication Critical patent/WO2009115202A2/en
Publication of WO2009115202A3 publication Critical patent/WO2009115202A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00—Prospecting or detecting by optical means
    • G01V8/10—Detecting, e.g. by using light barriers
    • G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The invention relates to an optical sensor (50) for detecting an object (2) in a monitoring region (3), comprising a light emitting unit for illuminating the monitoring region with light, comprising a detector unit having a close-up element for detecting light reflected and/or scattered from an object in a close-up region, and a far element for detecting light reflected and/or scattered from a background surface, and comprising a control and evaluation unit for controlling the light emitting unit and for evaluating detection signals of the detector unit. The optical sensor is characterized in that the light emitting unit comprises a plurality of light sources (14, 15, 16) in order to exclude faulty diagnoses, that the light sources are positioned and aligned in order to create light spots (17, 18, 19) on the object to be detected at different locations, that the radiation of the different light sources in each case has different physical properties, allowing for the reflected and/or scattered light returning to the associated light sources to be differentiated, and that the control and evaluation unit is equipped to output a switch signal on the basis of a logic operation of the detection signals returning to the individual light sources. The invention further relates to a method for detecting objects in a monitoring region.
PCT/EP2009/001643 2008-03-20 2009-03-06 Optical sensor and method for detecting objects WO2009115202A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020107023309A KR101275075B1 (en) 2008-03-20 2009-03-06 Optical sensor and method for detecting objects
CN2009801099717A CN101978291A (en) 2008-03-20 2009-03-06 Optical sensor and method for detecting objects
EP09722314.3A EP2257840B1 (en) 2008-03-20 2009-03-06 Optical sensor and method for detecting objects

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008003953U DE202008003953U1 (en) 2008-03-20 2008-03-20 Optical sensor
DE202008003953.3 2008-03-20

Publications (2)

Publication Number Publication Date
WO2009115202A2 WO2009115202A2 (en) 2009-09-24
WO2009115202A3 true WO2009115202A3 (en) 2010-05-27

Family

ID=39597986

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/001643 WO2009115202A2 (en) 2008-03-20 2009-03-06 Optical sensor and method for detecting objects

Country Status (5)

Country Link
EP (1) EP2257840B1 (en)
KR (1) KR101275075B1 (en)
CN (1) CN101978291A (en)
DE (1) DE202008003953U1 (en)
WO (1) WO2009115202A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010013880A1 (en) * 2010-04-01 2011-10-06 M & H Inprocess Messtechnik Gmbh Measurement device for use in e.g. laser light barrier arrangement, for measuring change of measuring beam detected by machine tool, has control unit transferring measuring beam change as measurement signal to signal output for controller
DE102010038186A1 (en) 2010-10-14 2012-04-19 Sick Ag Optoelectronic sensor with line arrangement of single emitters
US10591421B1 (en) 2014-02-25 2020-03-17 Khs Gmbh Beverage bottle handling device for handling beverage bottles and similar containers in a beverage bottling or container filling plant
DE102014102449A1 (en) * 2014-02-25 2015-08-27 Khs Gmbh inspection device
DE102014102450A1 (en) * 2014-02-25 2015-08-27 Khs Gmbh Inspection device with inverse foil lens
CN104965234A (en) * 2015-07-22 2015-10-07 上海龙华汽车配件有限公司 Temperature sensor front seat defect detection method and device
FR3046023B1 (en) * 2015-12-23 2017-12-22 Pellenc Sa ANTICIPATING ELECTRIC MOWER AND METHOD FOR CONTROLLING SUCH MOWER.
EP3315901B1 (en) * 2016-10-27 2019-06-05 Pepperl & Fuchs GmbH Measuring device and method for triangulation measurement
KR101960079B1 (en) * 2018-12-18 2019-03-19 코어다 주식회사 Motion recognition apparatus and motion recognition system
WO2020126006A1 (en) * 2018-12-20 2020-06-25 Sick Ag Sensor device for detecting a target object influenced by a process or formed during the process
KR102324977B1 (en) * 2020-02-18 2021-11-11 국민대학교산학협력단 Apparatus and method for recogniging led matrix based on dynamic qr code and system having the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19707417A1 (en) * 1996-05-24 1998-08-27 Leuze Electronic Gmbh & Co Optoelectronic device for monitoring surveillance zone
DE19951557A1 (en) * 1998-10-30 2000-05-11 Leuze Electronic Gmbh & Co Optoelectronic arrangement for detecting objects in monitored region has light transmitter and receiver with near and far elements for light from near and far objects
DE202006006482U1 (en) * 2005-05-06 2006-08-03 Leuze Electronic Gmbh & Co Kg Optical sensor for detecting objects in an observation range where received signals are analyzed to define a sample width with a threshold
DE29924961U1 (en) * 1998-03-17 2007-03-08 Leuze Electronic Gmbh & Co Kg Optoelectronic device for detecting objects in monitored region

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10128476C2 (en) * 2001-06-12 2003-06-12 Siemens Dematic Ag Optical sensor device for the visual detection of substrates

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19707417A1 (en) * 1996-05-24 1998-08-27 Leuze Electronic Gmbh & Co Optoelectronic device for monitoring surveillance zone
DE29924961U1 (en) * 1998-03-17 2007-03-08 Leuze Electronic Gmbh & Co Kg Optoelectronic device for detecting objects in monitored region
DE19951557A1 (en) * 1998-10-30 2000-05-11 Leuze Electronic Gmbh & Co Optoelectronic arrangement for detecting objects in monitored region has light transmitter and receiver with near and far elements for light from near and far objects
DE202006006482U1 (en) * 2005-05-06 2006-08-03 Leuze Electronic Gmbh & Co Kg Optical sensor for detecting objects in an observation range where received signals are analyzed to define a sample width with a threshold

Also Published As

Publication number Publication date
DE202008003953U1 (en) 2008-07-10
CN101978291A (en) 2011-02-16
EP2257840B1 (en) 2019-02-06
KR20110021733A (en) 2011-03-04
WO2009115202A2 (en) 2009-09-24
KR101275075B1 (en) 2013-06-17
EP2257840A2 (en) 2010-12-08

Similar Documents

Publication Publication Date Title
WO2009115202A3 (en) Optical sensor and method for detecting objects
WO2017186850A8 (en) Detector for optically detecting at least one object
DE602006008297D1 (en) FIRE OR SMOKE DETECTORS WITH HIGH PERFORMANCE FAIL ALARM PRESSURE
WO2006115766A3 (en) Automatic faucet with polarization sensor
WO2008051501A3 (en) Bedbug detection, monitoring and control techniques
ATE552514T1 (en) OPTOELECTRONIC MULTILEVEL SENSOR AND METHOD FOR DETECTING OBJECTS
JP2016500818A5 (en)
JP4887057B2 (en) Photoelectric sensor
WO2010073045A3 (en) Touch sensitive image display device
PL2052236T3 (en) Optical sensing system and method for discriminating plant matter
EP1856971A3 (en) Egg count sensor
JP2010515022A5 (en)
ATE522834T1 (en) LIGHT GRID
EP2362209A3 (en) Apparatus and method for detection and discrimination of the type of a molecular object
JP2011523065A5 (en)
WO2011131938A8 (en) Smoke detector
AR071076A1 (en) APPARATUS, PROVISION AND METHOD TO MEASURE CHARACTERISTICS OF A THREAD IN AN EXTREME OF CANO OR PIPING
JP2017502476A5 (en)
DE502007006447D1 (en) Opto-electronic sensor and method for its operation
RU2015105270A (en) DEVICE AND METHOD FOR DETERMINING THE CHROMATIC PROPERTIES OF FOOD PRODUCT
JP2011047813A5 (en)
WO2011133303A3 (en) Optical sensor for proximity and color detection
JP2008116441A5 (en)
TWI456531B (en) Smoke sensor
US7948628B2 (en) Window cleanliness detection system

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200980109971.7

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09722314

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: 2009722314

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 20107023309

Country of ref document: KR

Kind code of ref document: A