ATE102726T1 - VIDEO CONTROL FACILITIES. - Google Patents

VIDEO CONTROL FACILITIES.

Info

Publication number
ATE102726T1
ATE102726T1 AT90124078T AT90124078T ATE102726T1 AT E102726 T1 ATE102726 T1 AT E102726T1 AT 90124078 T AT90124078 T AT 90124078T AT 90124078 T AT90124078 T AT 90124078T AT E102726 T1 ATE102726 T1 AT E102726T1
Authority
AT
Austria
Prior art keywords
video control
flash
fields
image
control facilities
Prior art date
Application number
AT90124078T
Other languages
German (de)
Inventor
Rainer Rumland
Original Assignee
Grundig Emv
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 Grundig Emv filed Critical Grundig Emv
Application granted granted Critical
Publication of ATE102726T1 publication Critical patent/ATE102726T1/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G08B13/19652—Systems using zones in a single scene defined for different treatment, e.g. outer zone gives pre-alarm, inner zone gives alarm
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G08B13/19634—Electrical details of the system, e.g. component blocks for carrying out specific functions

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Image Processing (AREA)
  • Selective Calling Equipment (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

Infrared light barriers or video control systems are used, as is known, in monitoring bounded, plane areas, for example a level crossing. However, both solutions have the disadvantage that they are unreliable or are of a very complicated design. The invention provides a video control system which permits reliable evaluation using simple means. For this purpose, a camera is used to take and store two fields in each case, one being taken without flash, and the other with. A differential image, now containing only signal components caused by the light of the flash is obtained from the two fields. Given the presence of a three-dimensional object in the monitored area, there is produced on the side of the object averted from the flash a shadow signal which is evaluated and, if necessary, fed to the alarm-triggering device. <IMAGE>
AT90124078T 1990-03-28 1990-12-13 VIDEO CONTROL FACILITIES. ATE102726T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4009912A DE4009912A1 (en) 1990-03-28 1990-03-28 VIDEO CONTROL DEVICE
EP90124078A EP0448803B1 (en) 1990-03-28 1990-12-13 Video control system

Publications (1)

Publication Number Publication Date
ATE102726T1 true ATE102726T1 (en) 1994-03-15

Family

ID=6403218

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90124078T ATE102726T1 (en) 1990-03-28 1990-12-13 VIDEO CONTROL FACILITIES.

Country Status (3)

Country Link
EP (1) EP0448803B1 (en)
AT (1) ATE102726T1 (en)
DE (2) DE4009912A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4436856C2 (en) * 1994-10-16 1998-07-02 Christian Lutz Train braking device
DE19507812A1 (en) * 1995-03-06 1996-09-12 Marinitsch Waldemar Method and device for identifying and locating an object
DE19623524A1 (en) * 1996-06-13 1998-01-02 Pintsch Bamag Ag Monitoring unit for danger area at railway level crossing
EP1079351B1 (en) * 1999-08-27 2005-05-11 Siemens Building Technologies AG Space surveillance device
DE10044689A1 (en) * 2000-09-08 2002-03-21 Idm Gmbh Infrarot Sensoren Device for monitoring an area of a room
WO2003018402A1 (en) * 2001-08-27 2003-03-06 Edouard Menoud System for detecting foreign bodies on airport runways
PT1345444E (en) 2002-03-11 2006-06-30 Inventio Ag VIDEO SURVEILLANCE SYSTEM THROUGH SEMICONDUCTOR SENSOR OF THREE-DIMENSION IMAGES AND INFRARED RADIATION LIGHT SOURCE
CN100568959C (en) * 2003-03-20 2009-12-09 因温特奥股份公司 Method and device for monitoring the range of an elevator installation
FR2887061B1 (en) * 2005-06-08 2007-08-17 Sagem METHOD FOR ANALYZING A PRESENCE IN A SPACE
DE202007002260U1 (en) * 2007-02-15 2008-06-26 Leuze Electronic Gmbh & Co Kg Optoelectronic device
CN107300722A (en) * 2017-07-18 2017-10-27 孙天宇 A kind of foreign body detection system for airfield runway

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0629707B2 (en) * 1986-10-17 1994-04-20 株式会社日立製作所 Optical cutting line measuring device
FR2606572A1 (en) * 1986-11-07 1988-05-13 Faiveley Ets Method and device for detecting the presence of a body in a predetermined zone

Also Published As

Publication number Publication date
EP0448803A2 (en) 1991-10-02
EP0448803A3 (en) 1992-09-23
EP0448803B1 (en) 1994-03-09
DE4009912A1 (en) 1991-10-02
DE59004935D1 (en) 1994-04-14

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Legal Events

Date Code Title Description
EEFA Change of the company name
REN Ceased due to non-payment of the annual fee