CA950090A - Detection of movement in confined spaces - Google Patents

Detection of movement in confined spaces

Info

Publication number
CA950090A
CA950090A CA114,598A CA114598A CA950090A CA 950090 A CA950090 A CA 950090A CA 114598 A CA114598 A CA 114598A CA 950090 A CA950090 A CA 950090A
Authority
CA
Canada
Prior art keywords
detection
movement
confined spaces
confined
spaces
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
CA114,598A
Other versions
CA114598S (en
Inventor
John A. Bloice
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.)
MEMCO ELECTRONICS Ltd
Original Assignee
MEMCO ELECTRONICS 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 MEMCO ELECTRONICS Ltd filed Critical MEMCO ELECTRONICS Ltd
Application granted granted Critical
Publication of CA950090A publication Critical patent/CA950090A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
    • 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)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
CA114,598A 1970-06-03 1971-06-02 Detection of movement in confined spaces Expired CA950090A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2685870 1970-06-03
GB3652170 1970-07-28

Publications (1)

Publication Number Publication Date
CA950090A true CA950090A (en) 1974-06-25

Family

ID=26258468

Family Applications (1)

Application Number Title Priority Date Filing Date
CA114,598A Expired CA950090A (en) 1970-06-03 1971-06-02 Detection of movement in confined spaces

Country Status (3)

Country Link
US (1) US3691556A (en)
CA (1) CA950090A (en)
DE (1) DE2127645A1 (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1378754A (en) * 1971-09-07 1974-12-27 Peak Technologies Ltd Patient monitoring
US3805262A (en) * 1972-07-03 1974-04-16 Johnson Service Co Transmission antenna mixer doppler motion detection
US3801978A (en) * 1972-07-20 1974-04-02 E Systems Inc Ultrasonic-microwave doppler intrusion alarm system
GB1379848A (en) * 1972-07-25 1975-01-08 Peak Technologies Ltd Patient monitoring
DE2256926C3 (en) * 1972-11-21 1981-11-05 Schomandl KG, 8000 München Room monitoring device
US3961321A (en) * 1973-09-17 1976-06-01 Royston Arthur Leslie Moss Omnidirectional ultrasonic intrusion surveillance unit
GB1475111A (en) * 1974-01-23 1977-06-01 Microwave & Electronic Syst Intrusion sensor
US4054871A (en) * 1974-09-09 1977-10-18 The United States Of America As Represented By The Secretary Of The Navy Electromagnetic intrusion sensor
US4191953A (en) * 1975-01-23 1980-03-04 Microwave and Electronic System Limited Intrusion sensor and aerial therefor
US3925774A (en) * 1975-03-24 1975-12-09 Security Devices Corp Field disturbance type motion detection system
US4027303A (en) * 1975-05-22 1977-05-31 Neuwirth Karl R Apparatus for detecting the presence of objects by sensing reflected energy
US3980998A (en) * 1975-09-05 1976-09-14 Contronic Controls Limited Intrusion alarms
FR2353172A1 (en) * 1976-05-26 1977-12-23 Radiotechnique Compelec AUTOMATIC SENSITIVITY CONTROL DEVICE FOR HYPERFREQUENCY WAVE DETECTOR
US4117464A (en) * 1976-11-11 1978-09-26 Solfan Systems, Inc. Microwave motion-detection apparatus employing a gunn oscillator in a self-detecting mode
CA1093655A (en) * 1977-01-19 1981-01-13 Martin T. Cole Intrusion or movement detector
FR2399037A1 (en) * 1977-07-28 1979-02-23 Petrovsky Viktor RADAR DEVICE USING THE DOPPLER EFFECT TO MEASURE THE SPEED OF VEHICLES
US4239010A (en) * 1979-06-29 1980-12-16 Dickey-John Corporation Microwave seed sensor for field seed planter
US4475089A (en) * 1982-03-31 1984-10-02 Honeywell Inc. Proximity detector
FR2595830B1 (en) * 1986-03-13 1988-10-14 Tacussel Maurice TRANSMITTER / RECEIVER MICROWAVE HEAD, PARTICULARLY FOR HOMODYNE LOCAL SURVEILLANCE DOPPLER RADAR
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
US5410149A (en) * 1993-07-14 1995-04-25 Otis Elevator Company Optical obstruction detector with light barriers having planes of light for controlling automatic doors
JPH08225279A (en) * 1995-02-23 1996-09-03 Otis Elevator Co Door safety device of elevator
AU2001290608A1 (en) * 2000-08-31 2002-03-13 Rytec Corporation Sensor and imaging system
US7321699B2 (en) 2002-09-06 2008-01-22 Rytec Corporation Signal intensity range transformation apparatus and method
WO2008120826A1 (en) * 2007-04-02 2008-10-09 National Institute Of Information And Communications Technology Microwave/millimeter wave sensor apparatus
CN107408758B (en) * 2015-08-27 2021-01-05 华为技术有限公司 Antenna, antenna control method, antenna control device and antenna system
TWI673510B (en) * 2018-07-17 2019-10-01 昇雷科技股份有限公司 Doppler radar with bondwire interconnection structure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126539A (en) * 1964-03-24 Oscillator
GB656399A (en) * 1946-10-01 1951-08-22 Andre Marie Bernard Charlin Improvements in or relating to the detection of movements by means of a system of stationary acoustic waves
US2859435A (en) * 1955-11-08 1958-11-04 Gen Railway Signal Co Speed measuring system
US3041592A (en) * 1957-07-10 1962-06-26 Mosler Res Products Inc Protective alarm system
US3317912A (en) * 1963-07-29 1967-05-02 Kenneth S Kelleher Plural concentric parabolic antenna for omnidirectional coverage

Also Published As

Publication number Publication date
DE2127645A1 (en) 1972-03-23
US3691556A (en) 1972-09-12

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