GB9005972D0 - Proximity sensor - Google Patents
Proximity sensorInfo
- Publication number
- GB9005972D0 GB9005972D0 GB909005972A GB9005972A GB9005972D0 GB 9005972 D0 GB9005972 D0 GB 9005972D0 GB 909005972 A GB909005972 A GB 909005972A GB 9005972 A GB9005972 A GB 9005972A GB 9005972 D0 GB9005972 D0 GB 9005972D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- proximity sensor
- proximity
- sensor
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR 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
- G08B29/18—Prevention or correction of operating errors
- G08B29/20—Calibration, including self-calibrating arrangements
- G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR 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
- G08B29/18—Prevention or correction of operating errors
- G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Electronic Switches (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Push-Button Switches (AREA)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPI442487 | 1987-09-16 | ||
PCT/AU1988/000363 WO1989002635A1 (en) | 1987-09-16 | 1988-09-16 | Proximity sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
GB9005972D0 true GB9005972D0 (en) | 1990-05-23 |
GB2228574A GB2228574A (en) | 1990-08-29 |
Family
ID=3772460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9005972A Withdrawn GB2228574A (en) | 1987-09-16 | 1990-03-14 | Proximity sensor |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2481088A (en) |
GB (1) | GB2228574A (en) |
WO (1) | WO1989002635A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2134930A1 (en) * | 1993-11-18 | 1995-05-19 | Charles Gerston | Body detector |
GB9325623D0 (en) * | 1993-12-15 | 1994-02-16 | Hutchings Michael J | Particle detection apparatus |
JPH0821741A (en) * | 1994-07-08 | 1996-01-23 | Seikosha Co Ltd | Object sensor |
GB9421114D0 (en) * | 1994-10-19 | 1994-12-07 | Elmi Benny B | Motion detector |
US5808552A (en) * | 1996-11-25 | 1998-09-15 | Hill-Rom, Inc. | Patient detection system for a patient-support device |
US6067019A (en) * | 1996-11-25 | 2000-05-23 | Hill-Rom, Inc. | Bed exit detection apparatus |
US6133837A (en) * | 1999-03-05 | 2000-10-17 | Hill-Rom, Inc. | Patient position system and method for a support surface |
GB2353097A (en) * | 1999-07-23 | 2001-02-14 | Hampden Smith David Eric | Hidden electrical switch |
GB2368126A (en) * | 2000-10-19 | 2002-04-24 | Hampden Smith David Eric | Modular sensor switch |
EP1357510A1 (en) * | 2002-04-23 | 2003-10-29 | Sony Ericsson Mobile Communications AB | Pointing device enabling means, input device and portable device incorporting same |
WO2003091934A2 (en) * | 2002-04-23 | 2003-11-06 | Sony Ericsson Mobile Communications Ab | Pointing device enabling means, input device and portable device incorporating same |
US7569762B2 (en) | 2006-02-02 | 2009-08-04 | Xpresense Llc | RF-based dynamic remote control for audio effects devices or the like |
EP2290391B1 (en) | 2009-09-01 | 2020-12-16 | G4S Monitoring Technologies Limited | Proximity sensors |
US20120169499A1 (en) * | 2010-12-31 | 2012-07-05 | Schneider Electric Buildings Ab | Method and system for monitoring physical security via detecting potential intrusion |
CN110120140B (en) * | 2019-04-16 | 2020-12-29 | 电子科技大学 | Combined type enclosure alarm method fusing capacitance disturbance signal and video signal |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50142057A (en) * | 1974-05-01 | 1975-11-15 | ||
US4063447A (en) * | 1977-03-14 | 1977-12-20 | Honeywell, Inc. | Bridge circuit with drift compensation |
FR2443683A1 (en) * | 1978-12-05 | 1980-07-04 | Metafix | SECURITY SYSTEM |
US4602246A (en) * | 1982-02-11 | 1986-07-22 | Jensen Garold K | Intruder detector apparatus |
CA1250634A (en) * | 1984-11-19 | 1989-02-28 | Melvin C. Maki | Simulated targets for detection systems |
DE3526341A1 (en) * | 1985-07-23 | 1987-01-29 | Siemens Ag | Method and device for accurately evaluating the measurement signals determined from a capacitive protective fence |
-
1988
- 1988-09-16 WO PCT/AU1988/000363 patent/WO1989002635A1/en unknown
- 1988-09-16 AU AU24810/88A patent/AU2481088A/en not_active Abandoned
-
1990
- 1990-03-14 GB GB9005972A patent/GB2228574A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO1989002635A1 (en) | 1989-03-23 |
AU2481088A (en) | 1989-04-17 |
GB2228574A (en) | 1990-08-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |