EP0902402A3 - Method for optically monitoring a space - Google Patents

Method for optically monitoring a space Download PDF

Info

Publication number
EP0902402A3
EP0902402A3 EP98117081A EP98117081A EP0902402A3 EP 0902402 A3 EP0902402 A3 EP 0902402A3 EP 98117081 A EP98117081 A EP 98117081A EP 98117081 A EP98117081 A EP 98117081A EP 0902402 A3 EP0902402 A3 EP 0902402A3
Authority
EP
European Patent Office
Prior art keywords
space
cameras
optically monitoring
image
vision
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP98117081A
Other languages
German (de)
French (fr)
Other versions
EP0902402B1 (en
EP0902402A2 (en
Inventor
Karl-Heinz Kleine
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rms Kleine Vertrieb Elektonischer Geraete GmbH
Sick AG
Original Assignee
Rms Kleine Vertrieb Elektonischer Geraete GmbH
Rms Kleine Vertrieb Elekt GmbH
Rms Kleine Vertrieb Elektonischer Gerate 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 Rms Kleine Vertrieb Elektonischer Geraete GmbH, Rms Kleine Vertrieb Elekt GmbH, Rms Kleine Vertrieb Elektonischer Gerate GmbH filed Critical Rms Kleine Vertrieb Elektonischer Geraete GmbH
Publication of EP0902402A2 publication Critical patent/EP0902402A2/en
Publication of EP0902402A3 publication Critical patent/EP0902402A3/en
Application granted granted Critical
Publication of EP0902402B1 publication Critical patent/EP0902402B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G08B13/19604—Image analysis to detect motion of the intruder, e.g. by frame subtraction involving reference image or background adaptation with time to compensate for changing conditions, e.g. reference image update on detection of light level change
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19639—Details of the system layout
    • G08B13/19641—Multiple cameras having overlapping views on a single scene

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Burglar Alarm Systems (AREA)
  • Holo Graphy (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)

Abstract

A door region is monitored by a pair of cameras (2) set into the ceiling together with lighting units (16). The cameras have a field of vision of some 70 degrees. The camera output signals are converted to digital form and are fed to a microprocessor that executes a routine to compare the image with a stored reference image. An Independent claim for an optical monitoring system is also included.
EP98117081A 1997-09-15 1998-09-09 Apparatus and method for optically monitoring a space Expired - Lifetime EP0902402B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19740599 1997-09-15
DE19740599 1997-09-15
DE19743874 1997-10-04
DE19743874 1997-10-04

Publications (3)

Publication Number Publication Date
EP0902402A2 EP0902402A2 (en) 1999-03-17
EP0902402A3 true EP0902402A3 (en) 2000-05-17
EP0902402B1 EP0902402B1 (en) 2002-07-24

Family

ID=26040008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117081A Expired - Lifetime EP0902402B1 (en) 1997-09-15 1998-09-09 Apparatus and method for optically monitoring a space

Country Status (3)

Country Link
EP (1) EP0902402B1 (en)
AT (1) ATE221232T1 (en)
DE (1) DE59804862D1 (en)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29911391U1 (en) * 1999-06-30 1999-10-14 Sick AG, 79183 Waldkirch Optoelectronic monitoring system
DE29911390U1 (en) * 1999-06-30 1999-08-12 Sick AG, 79183 Waldkirch Optoelectronic monitoring system
DE10017344C1 (en) * 2000-04-07 2001-11-29 Pilz Gmbh & Co Protective device for safeguarding a dangerous area and method for checking its functional safety has an image capture unit with an image sensor containing multiple light-sensitive image points.
ATE332610T1 (en) 2000-04-07 2006-07-15 Pilz Gmbh & Co Kg PROTECTIVE DEVICE FOR SECURING A DANGER AREA AND METHOD FOR CHECKING THE FUNCTIONAL SAFETY OF SUCH
DE10017333C2 (en) * 2000-04-07 2003-02-13 Pilz Gmbh & Co Protective device for securing a danger zone and method for checking the functional safety of such a zone
DE10033608A1 (en) * 2000-07-11 2002-02-07 Pilz Gmbh & Co Securing an area around a machine tool to prevent entrance of personnel and possible injury using artificial light target, the image of which can be compared to a reference value and used to switch off the machine
DE10047896A1 (en) * 2000-09-26 2002-04-11 Saftey Control Method for checking the functionality of a sensor device
FR2829755B1 (en) * 2001-09-18 2004-01-23 Autinor METHOD FOR MONITORING AN ELEVATOR CAB
US7154531B2 (en) * 2001-10-26 2006-12-26 The Chamberlain Group, Inc. Detecting objects by digital imaging device
DE10205691A1 (en) 2002-02-04 2003-08-14 Pilz Gmbh & Co Method for checking the functional reliability of an image sensor and device with an image sensor
DE10224031B3 (en) * 2002-05-31 2004-01-29 Leuze Lumiflex Gmbh + Co. Kg Device for monitoring a detection area on a work equipment
DE10251584B4 (en) 2002-11-06 2004-11-04 Leuze Lumiflex Gmbh + Co. Kg Method and device for monitoring a detection area
AT500925A1 (en) * 2003-03-05 2006-04-15 Walter Dipl Ing Lorenz METHOD AND DEVICE FOR MONITORING THE ENTRY AREA OF VEHICLES
DE10353981A1 (en) * 2003-11-19 2005-06-09 Sick Ag camera system
DE102004020998A1 (en) 2004-04-19 2005-11-03 Pilz Gmbh & Co. Kg Device for monitoring a room area, in particular for securing a danger zone of an automated system
DE102004035243B4 (en) * 2004-07-21 2007-09-20 Sick Ag camera assembly
EP1647357A1 (en) * 2004-10-13 2006-04-19 Robosoft N.V. Method and device for observing and securing a danger zone of a machine or the like
DE602007011145D1 (en) 2006-04-24 2011-01-27 Inventio Ag Monitoring device and method for monitoring an elevator system
DE202006008112U1 (en) * 2006-05-20 2006-08-10 Sick Ag Optoelectronic protection device e.g. for monitoring hazardous area, has lighting equipment housing shaped for minimal jutting into entrance aperture
DE102006052805B3 (en) * 2006-11-09 2008-06-05 Sick Ag Optoelectronic monitoring device with test unit and test method
EP2017571B1 (en) 2007-07-20 2010-01-27 Sick Ag 3D security sensor and method for testing a 3D security sensor
EP2199999B1 (en) 2008-12-19 2012-05-02 Pepperl + Fuchs GmbH Method for testing an optical sensor and testable optical sensor
DE102009010460B4 (en) 2009-02-13 2010-11-25 Pilz Gmbh & Co. Kg Device and method for determining the follow-up time of a machine
US9083946B2 (en) * 2012-02-21 2015-07-14 Rockwell Automation Technologies, Inc. System to detect failed pixels in a sensor array
DE102013106514B3 (en) * 2013-06-21 2014-10-30 Pilz Gmbh & Co. Kg Device and method for securing an automated machine
US9525865B2 (en) * 2014-10-23 2016-12-20 Texas Instruments Incorporated Fault detection and method of detecting faults in digital imaging systems
DE102019123581A1 (en) * 2019-09-03 2021-03-04 Pilz Gmbh & Co. Kg Device and method for performing a safety function
DE102020101794A1 (en) 2020-01-27 2021-07-29 Sick Ag Securing a machine
EP3995852A1 (en) 2020-11-06 2022-05-11 Sick Ag Measuring a distance of an object

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007850A1 (en) * 1989-11-09 1991-05-30 Zone Technology Pty Limited Digital video camera
US5298697A (en) * 1991-09-19 1994-03-29 Hitachi, Ltd. Apparatus and methods for detecting number of people waiting in an elevator hall using plural image processing means with overlapping fields of view
US5387768A (en) * 1993-09-27 1995-02-07 Otis Elevator Company Elevator passenger detector and door control system which masks portions of a hall image to determine motion and court passengers
DE19525875A1 (en) * 1995-07-15 1997-01-16 Dorma Gmbh & Co Kg People or object counter for room or passage to be monitored e.g. region at automatic door - has at least one opto-electronic device, and monitors field provided with identifiable pattern

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991007850A1 (en) * 1989-11-09 1991-05-30 Zone Technology Pty Limited Digital video camera
US5298697A (en) * 1991-09-19 1994-03-29 Hitachi, Ltd. Apparatus and methods for detecting number of people waiting in an elevator hall using plural image processing means with overlapping fields of view
US5387768A (en) * 1993-09-27 1995-02-07 Otis Elevator Company Elevator passenger detector and door control system which masks portions of a hall image to determine motion and court passengers
DE19525875A1 (en) * 1995-07-15 1997-01-16 Dorma Gmbh & Co Kg People or object counter for room or passage to be monitored e.g. region at automatic door - has at least one opto-electronic device, and monitors field provided with identifiable pattern

Also Published As

Publication number Publication date
DE59804862D1 (en) 2002-08-29
EP0902402B1 (en) 2002-07-24
ATE221232T1 (en) 2002-08-15
EP0902402A2 (en) 1999-03-17

Similar Documents

Publication Publication Date Title
EP0902402A3 (en) Method for optically monitoring a space
CA2130590A1 (en) Optical Fiber Illumination Device
AU1614899A (en) Method and apparatus for illuminating and imaging eyes through eyeglasses using multiple sources of illumination
AU4646493A (en) Illumination system having an aspherical lens
IL129515A (en) Optical system for alternative or simultaneous direction of light originating from two scenes to the eye of a viewer
WO1999062263A8 (en) Miniature inspection system
CA2206888A1 (en) Eye imaging system
AU4103789A (en) Imaging lidar system using non-visible light
DE3477836D1 (en) Thermal deformation measuring system of ceramics and the like
AU6606890A (en) Optical system which allows coincident viewing, illuminating and photographing
EP0376398A3 (en) Illumination system for non-imaging reflective collector
EP0253017A3 (en) System and method of surveying
AU7869094A (en) Viewing assembly for producing an optically corrected reflected image
AU3356295A (en) Lens connector for optical through-connection of light guides
AU556712B2 (en) Light source with optical fibres
EP0277792A3 (en) Endoscope imaging systems
AU8143687A (en) Image projection system
AU1371192A (en) A method of fixing an optical image sensor in alignment with the image plane of a lens assembly
AU6613490A (en) Optical system which allows coincident viewing, illuminating and photographing
EP0406687A3 (en) Video camera having dc power source light
ES2020694A6 (en) Vehicle lamp unit incorporating television camera
EP0363207A3 (en) A system for displaying an image or object in the presence of ambient light
WO1998028905A3 (en) Tv camera for microscopic or macroscopic images
AU4669593A (en) Low light color imaging system with cooled integrating camera
AU4983279A (en) 3-tube tv camera optical entrance prism mounting

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FI FR GB IT LI NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIC1 Information provided on ipc code assigned before grant

Free format text: 7G 08B 13/194 A, 7H 04N 7/18 B

17P Request for examination filed

Effective date: 20001116

AKX Designation fees paid

Free format text: AT BE CH DE DK ES FI FR GB IT LI NL PT SE

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DIE ANDERE ERFINDER HABEN AUF IHRE NENNUNG VERZIC

Inventor name: RINGPFEIL,ANDREAS

Inventor name: MAGENS, EGGERT

Inventor name: KLEINE, KARL-HEINZ

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

RTI1 Title (correction)

Free format text: APPARATUS AND METHOD FOR OPTICALLY MONITORING A SPACE

17Q First examination report despatched

Effective date: 20011112

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FI FR GB IT LI NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020724

REF Corresponds to:

Ref document number: 221232

Country of ref document: AT

Date of ref document: 20020815

Kind code of ref document: T

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59804862

Country of ref document: DE

Date of ref document: 20020829

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020909

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020930

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20021024

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20021024

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SICK AG

Owner name: RMS KLEINE GMBH VERTRIEB ELEKTONISCHER GERAETE

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20021119

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act

Owner name: SICK AG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030130

ET Fr: translation filed
BERE Be: lapsed

Owner name: *RMS KLEINE G.M.B.H. VERTRIEB ELEKTONISCHER GERATE

Effective date: 20020930

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030425

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20060921

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20060925

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070910

EUG Se: european patent has lapsed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070909

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080917

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20080922

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20090924

Year of fee payment: 12

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20090909

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090909

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100909

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20170921

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59804862

Country of ref document: DE