GB1141090A - Improvements in or relating to methods of and devices for monitoring the operation of alarm systems operating according to doppler's principle - Google Patents

Improvements in or relating to methods of and devices for monitoring the operation of alarm systems operating according to doppler's principle

Info

Publication number
GB1141090A
GB1141090A GB5556967A GB5556967A GB1141090A GB 1141090 A GB1141090 A GB 1141090A GB 5556967 A GB5556967 A GB 5556967A GB 5556967 A GB5556967 A GB 5556967A GB 1141090 A GB1141090 A GB 1141090A
Authority
GB
United Kingdom
Prior art keywords
signal
stages
alarms
amplified
received
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
GB5556967A
Other languages
English (en)
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.)
REPUBLIC OF FRANCE
Original Assignee
REPUBLIC OF FRANCE
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 REPUBLIC OF FRANCE filed Critical REPUBLIC OF FRANCE
Publication of GB1141090A publication Critical patent/GB1141090A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/52004—Means for monitoring or calibrating
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/40—Means for monitoring or calibrating
    • G01S7/4004—Means for monitoring or calibrating of parts of a radar system
    • G01S7/4021—Means for monitoring or calibrating of parts of a radar system of receivers
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems
    • G08B13/1618—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means
    • G08B13/1627—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means using Doppler shift detection circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Emergency Alarm Devices (AREA)
  • Burglar Alarm Systems (AREA)
GB5556967A 1967-02-14 1967-12-06 Improvements in or relating to methods of and devices for monitoring the operation of alarm systems operating according to doppler's principle Expired GB1141090A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR94766A FR1518863A (fr) 1967-02-14 1967-02-14 Dispositif d'auto-contrôle adaptable aux installations de gardiennage par effet doppler

Publications (1)

Publication Number Publication Date
GB1141090A true GB1141090A (en) 1969-01-22

Family

ID=8625222

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5556967A Expired GB1141090A (en) 1967-02-14 1967-12-06 Improvements in or relating to methods of and devices for monitoring the operation of alarm systems operating according to doppler's principle

Country Status (4)

Country Link
DE (1) DE1616015A1 (enExample)
FR (1) FR1518863A (enExample)
GB (1) GB1141090A (enExample)
NL (1) NL6716824A (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE843614A (nl) * 1976-06-30 1976-10-18 Doppler-bewegingsdetector
DE3127345A1 (de) * 1981-07-10 1983-01-27 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung fuer ultraschall-einbruchssicherungseinrichtungen, die nach dem ultraschall-dopplerverfahren arbeiten

Also Published As

Publication number Publication date
NL6716824A (enExample) 1968-08-15
DE1616015A1 (de) 1971-09-16
FR1518863A (fr) 1968-03-29

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