DE2035434A1 - Uberwachungs Alarmsystem - Google Patents

Uberwachungs Alarmsystem

Info

Publication number
DE2035434A1
DE2035434A1 DE19702035434 DE2035434A DE2035434A1 DE 2035434 A1 DE2035434 A1 DE 2035434A1 DE 19702035434 DE19702035434 DE 19702035434 DE 2035434 A DE2035434 A DE 2035434A DE 2035434 A1 DE2035434 A1 DE 2035434A1
Authority
DE
Germany
Prior art keywords
preselected
capacitor
signal
circuit
doppler shift
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.)
Pending
Application number
DE19702035434
Other languages
German (de)
English (en)
Inventor
Michael Edinburgh Jmman
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.)
Microwave and Electronic Systems Ltd
Original Assignee
Microwave and Electronic Systems Ltd
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 Microwave and Electronic Systems Ltd filed Critical Microwave and Electronic Systems Ltd
Publication of DE2035434A1 publication Critical patent/DE2035434A1/de
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00Burglar, theft or intruder alarms
    • G08B13/22Electrical actuation
    • G08B13/24Electrical actuation by interference with electromagnetic field distribution
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50Systems of measurement based on relative movement of target
    • G01S13/52Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/56Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/24Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Burglar Alarm Systems (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
DE19702035434 1969-07-21 1970-07-17 Uberwachungs Alarmsystem Pending DE2035434A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3666169 1969-07-21

Publications (1)

Publication Number Publication Date
DE2035434A1 true DE2035434A1 (de) 1971-02-11

Family

ID=10390128

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702035434 Pending DE2035434A1 (de) 1969-07-21 1970-07-17 Uberwachungs Alarmsystem

Country Status (6)

Country Link
JP (1) JPS508918B1 (enrdf_load_stackoverflow)
DE (1) DE2035434A1 (enrdf_load_stackoverflow)
GB (1) GB1316087A (enrdf_load_stackoverflow)
IL (1) IL34921A0 (enrdf_load_stackoverflow)
NL (1) NL7010766A (enrdf_load_stackoverflow)
ZA (1) ZA704716B (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2129824B1 (enrdf_load_stackoverflow) * 1971-03-15 1974-05-31 Radiotechnique Compelec
JPS5910630Y2 (ja) 1976-03-19 1984-04-03 ホーチキ株式会社 移動物体警報装置
US4122427A (en) * 1976-06-24 1978-10-24 Herbert Karsh Motion monitor
ES2859780T3 (es) 2009-09-01 2021-10-04 G4S Monitoring Tech Limited Sensores de proximidad

Also Published As

Publication number Publication date
JPS508918B1 (enrdf_load_stackoverflow) 1975-04-08
NL7010766A (enrdf_load_stackoverflow) 1971-01-25
IL34921A0 (en) 1970-12-24
ZA704716B (en) 1971-04-28
GB1316087A (en) 1973-05-09

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