CA1200846A - Systeme sans fil de controle d'alarme a grande distance - Google Patents
Systeme sans fil de controle d'alarme a grande distanceInfo
- Publication number
- CA1200846A CA1200846A CA000411368A CA411368A CA1200846A CA 1200846 A CA1200846 A CA 1200846A CA 000411368 A CA000411368 A CA 000411368A CA 411368 A CA411368 A CA 411368A CA 1200846 A CA1200846 A CA 1200846A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- transmitter
- remote
- station
- central station
- 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
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
- G08B26/007—Wireless interrogation
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30212581A | 1981-09-14 | 1981-09-14 | |
US302,125 | 1981-09-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1200846A true CA1200846A (fr) | 1986-02-18 |
Family
ID=23166362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000411368A Expired CA1200846A (fr) | 1981-09-14 | 1982-09-14 | Systeme sans fil de controle d'alarme a grande distance |
Country Status (3)
Country | Link |
---|---|
CA (1) | CA1200846A (fr) |
WO (1) | WO1983001139A1 (fr) |
ZA (1) | ZA826747B (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK148106C (da) * | 1983-04-12 | 1987-10-19 | 2 M Security System Aps | Tyverisikringsanlaeg, navnlig til butiksarealer |
DE3343645A1 (de) * | 1983-12-02 | 1985-06-13 | Standard Elektrik Lorenz Ag, 7000 Stuttgart | Bodenstation eines navigationssystems |
GB2156120A (en) * | 1984-02-23 | 1985-10-02 | Alarmcall Security Systems Lim | Alarm system |
GB8726830D0 (en) * | 1987-11-17 | 1987-12-23 | Martin J A | Monitoring system |
EP0372640A1 (fr) * | 1988-12-05 | 1990-06-13 | Ericsson Radio Systems B.V. | Système d'appel de personne avec détermination de l'état d'une unité d'appel et d'un utilisateur du système |
FR2649233A1 (fr) * | 1989-06-28 | 1991-01-04 | Crde | Systeme de telealarme centralisee |
GB9212165D0 (en) * | 1992-06-09 | 1992-07-22 | Hartbrook Properties Limited | Property protection system |
FR2708774A1 (fr) * | 1993-08-05 | 1995-02-10 | Guillo Jean | Dispositif de sécurité à liaison radio bi-directionnelle. |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3256517A (en) * | 1963-07-03 | 1966-06-14 | Motorola Inc | Remote alarm system with scanning by tones |
US3418579A (en) * | 1964-09-08 | 1968-12-24 | Comm And Systems Inc | Satellite communication synchronizing system |
US3593138A (en) * | 1968-07-31 | 1971-07-13 | Nasa | Satellite interlace synchronization system |
US3508260A (en) * | 1968-09-03 | 1970-04-21 | Edward S Stein | Transponder monitoring system |
US4222052A (en) * | 1976-12-15 | 1980-09-09 | Dunn Ronald A | Data transmission system |
US4191948A (en) * | 1978-10-23 | 1980-03-04 | Napco Security System Inc. | Digital transmission apparatus particularly adapted for security systems |
-
1982
- 1982-09-14 ZA ZA826747A patent/ZA826747B/xx unknown
- 1982-09-14 WO PCT/US1982/001242 patent/WO1983001139A1/fr unknown
- 1982-09-14 CA CA000411368A patent/CA1200846A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
WO1983001139A1 (fr) | 1983-03-31 |
ZA826747B (en) | 1983-07-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MKEX | Expiry | ||
MKEX | Expiry |
Effective date: 20030218 |