ES426923A1 - Intrusion detector - Google Patents

Intrusion detector

Info

Publication number
ES426923A1
ES426923A1 ES426923A ES426923A ES426923A1 ES 426923 A1 ES426923 A1 ES 426923A1 ES 426923 A ES426923 A ES 426923A ES 426923 A ES426923 A ES 426923A ES 426923 A1 ES426923 A1 ES 426923A1
Authority
ES
Spain
Prior art keywords
warning device
signal
antenna
circuit
amplifier
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.)
Expired
Application number
ES426923A
Other languages
Spanish (es)
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.)
TACUSSEL
Original Assignee
TACUSSEL
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 TACUSSEL filed Critical TACUSSEL
Publication of ES426923A1 publication Critical patent/ES426923A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/06—Details
    • H01Q9/065—Microstrip dipole antennas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/56—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

Improvements in electromagnetic radiation intrusion detectors, of the type that comprise a main transmitter-receiver-antenna-amplifier set that supplies a return signal to an intrusion warning device, this signal being modified by the presence and/or displacement of an intruder in the field of the antenna, and causing the modification of said signal by triggering said warning device, according to which the detector comprises: an inhibitory electronic circuit interposed between said main assembly and said warning device; as well as an auxiliary amplifier of parasitic signals coupled to one of the inputs of said circuit, this circuit preventing the connection between said set and said warning device, in response to a signal coming from said auxiliary amplifier. (Machine-translation by Google Translate, not legally binding)
ES426923A 1973-05-22 1974-05-20 Intrusion detector Expired ES426923A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7318501A FR2231062B1 (en) 1973-05-22 1973-05-22

Publications (1)

Publication Number Publication Date
ES426923A1 true ES426923A1 (en) 1976-07-16

Family

ID=9119741

Family Applications (1)

Application Number Title Priority Date Filing Date
ES426923A Expired ES426923A1 (en) 1973-05-22 1974-05-20 Intrusion detector

Country Status (7)

Country Link
BE (1) BE815361A (en)
CH (1) CH587529A5 (en)
DE (1) DE2424278C3 (en)
ES (1) ES426923A1 (en)
FR (1) FR2231062B1 (en)
GB (1) GB1450236A (en)
IT (1) IT1011858B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2315733A1 (en) * 1975-06-23 1977-01-21 Tacussel Maurice RADAR, ESPECIALLY FOR THE SURVEILLANCE OF A PREMISES
FR2331102A1 (en) * 1975-11-07 1977-06-03 Tacussel Maurice METHOD AND INSTALLATION FOR THE REMOTE CONTROL OF A ROOM SURVEILLANCE RADAR DEVICE
FR2444944A1 (en) * 1978-12-22 1980-07-18 Brier Jean Pierre Sealed microwave movement detector - comprises oscillator with cavities and antenna on printed circuit board, and analysis circuits to sense variation of frequency
US4430645A (en) * 1981-04-07 1984-02-07 Sensormatic Electronics Corporation Surveillance system employing a dual function floor mat radiator
EP0068050A1 (en) * 1981-06-25 1983-01-05 Shorrock Developments Limited Intruder detection apparatus
DE3209093A1 (en) * 1982-03-12 1983-09-22 Hörmann GmbH, 8011 Kirchseeon DEVICE FOR MONITORING SPACE BY DOPPLER RADAR
DE3209094A1 (en) * 1982-03-12 1983-09-22 Hörmann GmbH, 8011 Kirchseeon DEVICE FOR MONITORING SPACE BY DOPPLER RADAR
FR2538188B1 (en) * 1982-12-16 1988-07-15 Dreuilhe Jacqueline OSCILLATOR FOR A DOPPLER RADAR HEAD FOR THE DETECTION OF MOVING OBJECTS
DE3336610A1 (en) * 1983-10-07 1985-04-25 Hörmann GmbH, 8011 Kirchseeon MICROWAVE CABINET
FR2575554B1 (en) * 1984-12-28 1987-01-23 Radiotechnique Compelec MICROWAVE MODULE FOR DOPPLER RADAR IN BAND K
CA1279899C (en) * 1985-08-13 1991-02-05 Notifier Company Security system with saw transmitter
US4672379A (en) * 1985-12-04 1987-06-09 Bishop Frank W Doppler radar transceiver
DE4013049A1 (en) * 1989-04-25 1990-10-31 Siemens Ag Doppler radar module circuit for object motion detection - has aerial coupled to control circuit for circuit of single active switching element for oscillator and receiver
EP1714167B1 (en) * 2004-01-20 2010-08-25 BAE Systems Information and Electronic Method and apparatus for through-the-wall motion detection utilizing cw radar

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2779935A (en) * 1955-03-21 1957-01-29 Holmes Electric Protective Com Noise actuated disabling unit
US3668703A (en) * 1969-01-31 1972-06-06 Johnson Service Co Motion detector
US3732555A (en) * 1972-03-13 1973-05-08 Sperry Rand Corp Selective intrusion alarm system

Also Published As

Publication number Publication date
DE2424278C3 (en) 1979-08-02
CH587529A5 (en) 1977-05-13
FR2231062A1 (en) 1974-12-20
IT1011858B (en) 1977-02-10
DE2424278B2 (en) 1978-12-07
BE815361A (en) 1974-11-21
FR2231062B1 (en) 1977-11-10
DE2424278A1 (en) 1974-12-19
GB1450236A (en) 1976-09-22

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