GB2294118B - A device for and method of surveillance of a space - Google Patents

A device for and method of surveillance of a space

Info

Publication number
GB2294118B
GB2294118B GB9524130A GB9524130A GB2294118B GB 2294118 B GB2294118 B GB 2294118B GB 9524130 A GB9524130 A GB 9524130A GB 9524130 A GB9524130 A GB 9524130A GB 2294118 B GB2294118 B GB 2294118B
Authority
GB
United Kingdom
Prior art keywords
surveillance
space
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 - Fee Related
Application number
GB9524130A
Other versions
GB2294118A (en
GB9524130D0 (en
Inventor
William Burdock
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.)
MG Rover Group Ltd
Original Assignee
MG Rover Group 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
Priority claimed from GB929206360A external-priority patent/GB9206360D0/en
Application filed by MG Rover Group Ltd filed Critical MG Rover Group Ltd
Publication of GB9524130D0 publication Critical patent/GB9524130D0/en
Publication of GB2294118A publication Critical patent/GB2294118A/en
Application granted granted Critical
Publication of GB2294118B publication Critical patent/GB2294118B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR 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
    • G08B13/1636—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means using pulse-type detection circuits
    • 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/04—Systems determining presence of a target
    • 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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/50—Systems of measurement, based on relative movement of the target
    • G01S15/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S15/523—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
    • G01S15/526—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection by comparing echos in different sonar periods
    • 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
    • G01S13/04—Systems determining presence of a target
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Burglar Alarm Systems (AREA)
GB9524130A 1992-03-24 1993-03-23 A device for and method of surveillance of a space Expired - Fee Related GB2294118B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929206360A GB9206360D0 (en) 1992-03-24 1992-03-24 A device for and a method of surveillance of a space
GB9418929A GB2279748B (en) 1992-03-24 1993-03-23 A device for and method of surveillance of a space

Publications (3)

Publication Number Publication Date
GB9524130D0 GB9524130D0 (en) 1996-01-24
GB2294118A GB2294118A (en) 1996-04-17
GB2294118B true GB2294118B (en) 1996-07-24

Family

ID=26300580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9524130A Expired - Fee Related GB2294118B (en) 1992-03-24 1993-03-23 A device for and method of surveillance of a space

Country Status (1)

Country Link
GB (1) GB2294118B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105721066A (en) * 2014-09-30 2016-06-29 财团法人工业技术研究院 Space state detection device, system and method based on sound waves

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107543569B (en) * 2016-06-29 2020-04-28 财团法人工业技术研究院 Space disturbance detection method and device based on frequency modulation sound waves

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105721066A (en) * 2014-09-30 2016-06-29 财团法人工业技术研究院 Space state detection device, system and method based on sound waves
CN105721066B (en) * 2014-09-30 2019-01-18 财团法人工业技术研究院 Space state detection device, system and method based on sound waves

Also Published As

Publication number Publication date
GB2294118A (en) 1996-04-17
GB9524130D0 (en) 1996-01-24

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20110323