CA1050652A - Multi-zone intrusion detection system - Google Patents
Multi-zone intrusion detection systemInfo
- Publication number
- CA1050652A CA1050652A CA243,016A CA243016A CA1050652A CA 1050652 A CA1050652 A CA 1050652A CA 243016 A CA243016 A CA 243016A CA 1050652 A CA1050652 A CA 1050652A
- Authority
- CA
- Canada
- Prior art keywords
- zone
- zones
- additional
- transmitter
- signal
- 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
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 238000012545 processing Methods 0.000 claims description 5
- 230000001902 propagating effect Effects 0.000 claims description 3
- 230000000644 propagated effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 230000001960 triggered effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 12
- 230000009977 dual effect Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000272470 Circus Species 0.000 description 1
- 101100010343 Drosophila melanogaster lobo gene Proteins 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000035559 beat frequency Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006854 communication Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
-
- 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
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)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/542,695 US3986182A (en) | 1974-03-27 | 1975-01-21 | Multi-zone intrusion detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1050652A true CA1050652A (en) | 1979-03-13 |
Family
ID=24164901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA243,016A Expired CA1050652A (en) | 1975-01-21 | 1976-01-06 | Multi-zone intrusion detection system |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5197397A (OSRAM) |
| AU (1) | AU502566B2 (OSRAM) |
| CA (1) | CA1050652A (OSRAM) |
| DE (1) | DE2600362A1 (OSRAM) |
| FR (1) | FR2298839A1 (OSRAM) |
| GB (1) | GB1511461A (OSRAM) |
| IT (1) | IT1053395B (OSRAM) |
| NL (1) | NL7600175A (OSRAM) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2818942C2 (de) | 1978-04-28 | 1986-03-27 | Zellweger Uster Ag, Uster | Verfahren zur Raumüberwachung und Vorrichtung zur Durchführung des Verfahrens |
| EP0010870A1 (en) * | 1978-10-04 | 1980-05-14 | Glynwed Group Services Limited | Electronic lock and key, and an alarm system incorporating same |
| DE3428773A1 (de) * | 1984-08-03 | 1986-02-13 | Siemens AG, 1000 Berlin und 8000 München | Ultraschallnaeherungsinitiator |
| GB2179481B (en) * | 1985-08-20 | 1989-08-02 | Rentokil Ltd | Pest detection apparatus and method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3680074A (en) * | 1969-11-03 | 1972-07-25 | Zeev Lieser | Intrusion systems employing digital processing circuitry |
| US3781859A (en) * | 1972-04-19 | 1973-12-25 | Seabroad Electric | Controlled wave pattern ultrasonic burglar alarm |
-
1976
- 1976-01-06 CA CA243,016A patent/CA1050652A/en not_active Expired
- 1976-01-07 DE DE19762600362 patent/DE2600362A1/de not_active Withdrawn
- 1976-01-09 NL NL7600175A patent/NL7600175A/xx not_active Application Discontinuation
- 1976-01-12 GB GB100876A patent/GB1511461A/en not_active Expired
- 1976-01-16 FR FR7601124A patent/FR2298839A1/fr active Granted
- 1976-01-16 JP JP51003275A patent/JPS5197397A/ja active Pending
- 1976-01-20 IT IT4771576A patent/IT1053395B/it active
- 1976-03-16 AU AU12059/76A patent/AU502566B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU502566B2 (en) | 1979-08-02 |
| DE2600362A1 (de) | 1976-07-22 |
| FR2298839B1 (OSRAM) | 1980-05-30 |
| FR2298839A1 (fr) | 1976-08-20 |
| AU1205976A (en) | 1977-09-22 |
| GB1511461A (en) | 1978-05-17 |
| JPS5197397A (OSRAM) | 1976-08-26 |
| NL7600175A (nl) | 1976-07-23 |
| IT1053395B (it) | 1981-08-31 |
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