FR2439439A1 - Systeme d'alarme multilocalise a deux fils - Google Patents
Systeme d'alarme multilocalise a deux filsInfo
- Publication number
- FR2439439A1 FR2439439A1 FR7925690A FR7925690A FR2439439A1 FR 2439439 A1 FR2439439 A1 FR 2439439A1 FR 7925690 A FR7925690 A FR 7925690A FR 7925690 A FR7925690 A FR 7925690A FR 2439439 A1 FR2439439 A1 FR 2439439A1
- Authority
- FR
- France
- Prior art keywords
- alarm
- alarm system
- multilocalized
- wire
- generate
- 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.)
- Granted
Links
Classifications
-
- 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
- G08B25/018—Sensor coding by detecting magnitude of an electrical parameter, e.g. resistance
-
- 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
- G08B25/04—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 a single signalling line, e.g. in a closed loop
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
- Fire Alarms (AREA)
Abstract
L'INVENTION CONCERNE UN SYSTEME D'ALARME MULTILOCALISE COMPORTANT UNE BOUCLE D'ALARME A DEUX FILS. UNE SOURCE DE COURANT 10 EST CONNECTEE A UN CONDUCTEUR DE SORTIE 12 ET UN CONDUCTEUR DE RETOUR 16 ENTRE LESQUELS SE TROUVE UNE SERIE DE RESEAUX SIMPLES 20A, 20B, 20C RESPECTIVEMENT DISPOSES AU NIVEAU DES DETECTEURS D'ALARME ET DESTINES A PRODUIRE UN SIGNAL CODE INDICATIF DE L'IDENTITE DU DETECTEUR, ET UN CIRCUIT RELATIVEMENT SIMPLE SITUE EN UN EMPLACEMENT CENTRAL ET COMPORTANT UN PROCESSEUR 22 QUI INTERROGE LES DETECTEURS ELOIGNES ET DETERMINE CEUX D'ENTRE EUX QUI PRODUISENT UN SIGNAL D'ALARME, POUR FAIRE APPARAITRE LA SITUATION D'ENSEMBLE SUR UN DISPOSITIF D'AFFICHAGE 24. LE SYSTEME D'ALARME DE L'INVENTION EST DESTINE A DETECTER LES EVENEMENTS TELS QU'UN INCENDIE, UNE INTRUSION INDESIRABLE OU D'AUTRES SITUATIONS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/951,765 US4359721A (en) | 1978-10-16 | 1978-10-16 | Two-wire multi-zone alarm system |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2439439A1 true FR2439439A1 (fr) | 1980-05-16 |
FR2439439B1 FR2439439B1 (fr) | 1985-04-26 |
Family
ID=25492118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7925690A Granted FR2439439A1 (fr) | 1978-10-16 | 1979-10-16 | Systeme d'alarme multilocalise a deux fils |
Country Status (5)
Country | Link |
---|---|
US (1) | US4359721A (fr) |
AU (1) | AU527042B2 (fr) |
FR (1) | FR2439439A1 (fr) |
GB (1) | GB2032666B (fr) |
NL (1) | NL7907623A (fr) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4401980A (en) * | 1977-10-07 | 1983-08-30 | The United States Of America As Represented By The Secretary Of The Army | Constant current electronic intruder detection system |
DE2939462C2 (de) * | 1979-09-28 | 1983-01-05 | Siemens AG, 1000 Berlin und 8000 München | Verfahren und Einrichtung zur Identifizierung einzelner Melder in Einbruch- oder Brandmeldeanlagen |
WO1981002962A1 (fr) * | 1980-04-10 | 1981-10-15 | F Yong | Systeme electrique de controle et de saisie de donnees |
DK346982A (da) * | 1981-02-06 | 1983-02-07 | Inst For Ind Res & Standards | Metode og apparat til identifikation af placeringen af en tilstandsaendring i en del af et elektrisk kredsloeb |
GB2117150B (en) * | 1982-02-26 | 1986-03-19 | Morrison John M | Intruder alarm system |
US4524349A (en) * | 1982-08-09 | 1985-06-18 | Nel-Tech Development, Inc. | Security system having detector sensing and identification |
GB2138187B (en) * | 1983-04-08 | 1986-09-10 | Morrison John M | Burglar alarm system |
US5382909A (en) * | 1983-06-30 | 1995-01-17 | Raychem Corporation | Method for detecting and obtaining information about changes in variables |
US5015958A (en) * | 1983-06-30 | 1991-05-14 | Raychem Corporation | Elongate sensors comprising conductive polymers, and methods and apparatus using such sensors |
US4567471A (en) * | 1983-08-08 | 1986-01-28 | Pittway Corporation | Monitoring system |
US4603318A (en) * | 1983-11-14 | 1986-07-29 | Philp Robert J | Telemetry and like signaling systems |
US4555930A (en) * | 1984-02-14 | 1985-12-03 | Control Instruments Corp. | Digital gas sensing system |
DE3687819T2 (de) * | 1985-06-12 | 1993-06-09 | Raychem Corp | Kohlenwasserstoffsensor. |
EP0250488A1 (fr) * | 1985-12-24 | 1988-01-07 | Monitronix Limited | Systeme sequentiel electronique de decelement de pannes |
US5008840A (en) * | 1988-05-27 | 1991-04-16 | Napco Security Systems, Inc. | Multi-zone microprocessor fire control apparatus |
US4991123A (en) * | 1989-01-06 | 1991-02-05 | Cerberus A.G. | Alarm system |
JP2721916B2 (ja) * | 1989-06-29 | 1998-03-04 | 能美防災株式会社 | 火災報知設備の断線監視装置 |
FR2664408A1 (fr) * | 1990-07-04 | 1992-01-10 | Spie Trindel | Installation de surveillance et d'alarme. |
US5783989A (en) * | 1992-05-22 | 1998-07-21 | Issa; Darrell E. | Alarm sensor multiplexing |
FR2709017B1 (fr) * | 1993-08-12 | 1995-09-22 | Snecma | Circuit de détection de la position de plusieurs contacteurs bipolaires et application à un inverseur de poussée d'un turboréacteur. |
US5801913A (en) * | 1996-04-29 | 1998-09-01 | Kiddie-Fenwal, Inc. | Isolation circuitry |
US6084509A (en) * | 1999-02-09 | 2000-07-04 | Simpson, Sr.; Ronald R. | Annunciator alarm control device |
US6593758B2 (en) | 2001-08-02 | 2003-07-15 | Honeywell International Inc. | Built-in test system for aircraft indication switches |
US8446285B2 (en) * | 2008-02-08 | 2013-05-21 | Siemens Industry, Inc. | Methods and apparatus for controlling and testing a notification appliance circuit |
FR2956519B1 (fr) * | 2010-02-18 | 2012-02-03 | Snecma | Circuit de detection des positions de contacteurs dans une turbomachine |
GR20100100257A (el) * | 2010-05-03 | 2012-01-17 | Γεωργιος Νικολαου Χλαπουτακης | Περιφερειακη συσκευη που συνδεεται σε οικιακα συστηματα συναγερμου και που στοχευει στην συνολικη προστασια ενος ανοιγματος μεσω μαγνητικων διακοπτων και αισθητηρων κινησης |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1445002A (en) * | 1973-01-16 | 1976-08-04 | Silec Liaisons Elec | Monitoring system |
GB1473291A (en) * | 1974-04-26 | 1977-05-11 | Briggs L | Communication systems |
US4118700A (en) * | 1977-05-31 | 1978-10-03 | Rca Corporation | Single wire transmission of multiple switch operations |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2556363A (en) * | 1948-09-23 | 1951-06-12 | Lord Taber Company | Alarm system with circuit integrity checking means |
GB1040741A (en) * | 1961-12-04 | 1966-09-01 | Elliott Brothers London Ltd | Fault alarm display systems |
US3482243A (en) * | 1966-10-28 | 1969-12-02 | Rca Corp | Protective system |
US3553674A (en) * | 1968-10-31 | 1971-01-05 | Electro Tech Appliance Service | Theft alarm system utilizing a bridge having a capacitive voltage divider |
US3644927A (en) * | 1969-05-27 | 1972-02-22 | Gulton Ind | Event monitor system |
US3702473A (en) * | 1971-08-27 | 1972-11-07 | Gen Motors Corp | Seven-state resistance sensing supervisory system utilizing single pole-double throw switches |
US3716834A (en) * | 1971-10-07 | 1973-02-13 | H Adams | Data transmission system with immunity to circuit faults |
US4041455A (en) * | 1976-08-02 | 1977-08-09 | Control Data Corporation | Interrogation and monitoring system |
GB1548526A (en) * | 1977-10-26 | 1979-07-18 | Tronic Alarms Ltd M | Burglar and fire alarm detection circuit monitor |
-
1978
- 1978-10-16 US US05/951,765 patent/US4359721A/en not_active Expired - Lifetime
-
1979
- 1979-10-05 GB GB7934721A patent/GB2032666B/en not_active Expired
- 1979-10-10 AU AU51585/79A patent/AU527042B2/en not_active Ceased
- 1979-10-15 NL NL7907623A patent/NL7907623A/nl not_active Application Discontinuation
- 1979-10-16 FR FR7925690A patent/FR2439439A1/fr active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1445002A (en) * | 1973-01-16 | 1976-08-04 | Silec Liaisons Elec | Monitoring system |
GB1473291A (en) * | 1974-04-26 | 1977-05-11 | Briggs L | Communication systems |
US4118700A (en) * | 1977-05-31 | 1978-10-03 | Rca Corporation | Single wire transmission of multiple switch operations |
Also Published As
Publication number | Publication date |
---|---|
US4359721A (en) | 1982-11-16 |
NL7907623A (nl) | 1980-04-18 |
FR2439439B1 (fr) | 1985-04-26 |
GB2032666A (en) | 1980-05-08 |
AU5158579A (en) | 1980-04-24 |
AU527042B2 (en) | 1983-02-10 |
GB2032666B (en) | 1982-10-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |