FR2519450A1 - Alarm signal transmission using telephone lines - includes normal switched line and protected direct line for use upon failure of first line - Google Patents
Alarm signal transmission using telephone lines - includes normal switched line and protected direct line for use upon failure of first line Download PDFInfo
- Publication number
- FR2519450A1 FR2519450A1 FR8200332A FR8200332A FR2519450A1 FR 2519450 A1 FR2519450 A1 FR 2519450A1 FR 8200332 A FR8200332 A FR 8200332A FR 8200332 A FR8200332 A FR 8200332A FR 2519450 A1 FR2519450 A1 FR 2519450A1
- Authority
- FR
- France
- Prior art keywords
- line
- failure
- alarm signal
- electronic circuit
- normal
- 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- Withdrawn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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
Abstract
Description
La présente invention concerne les transmissions d'alarme par lignes téléphoniques. The present invention relates to alarm transmissions by telephone lines.
Dans certains dispositifs connus de ce genre, on utilise uniquement une ligne PTT spécialisee autoprotégée en permanence et reliant le local à protéger à un poste de police. Ce système présente l'inconvénient de déranger inutilement la police en cas de fausse alarme. In some known devices of this kind, only a specialized PTT line is used which is permanently self-protected and connects the room to be protected to a police station. This system has the disadvantage of unnecessarily disturbing the police in the event of a false alarm.
Dans d'autres dispositifs connus, on utilise uniquement une ligne téléphonique du réseau commuté PTT avec un transmetteur qui appelle automatiquement le numéro d'une centrale de gardiennage privée et qui indique la provenance géographique de l'appel ainsi que la nature de l'alarme, par exemple : vol, hold up, incendie ou défaut technique. Ceci permet une intervention adaptée à la nature de l'alarme, effectuée par un personnel formé qui connait bien les lieux d'intervention. Le gros inconvénient est le manque de fiabilité de la transmission en cas de coupure accidentelle ou malveillance de la ligne abonnée, ou en cas de defa llence technique du réseau. In other known devices, only a telephone line from the switched PTT network is used with a transmitter which automatically calls the number of a private security guard and which indicates the geographical origin of the call as well as the nature of the alarm. , for example: theft, hold up, fire or technical fault. This allows intervention adapted to the nature of the alarm, carried out by trained personnel who are familiar with the intervention sites. The big drawback is the lack of reliability of the transmission in the event of accidental or malicious malfunction of the subscribed line, or in the event of technical defect in the network.
Le système selon l'invention permet d'éviter ces inconvénients en utilisant deux lignes différentes : une ligne commuté utilisée normalement et une ligne spécialisée utilisée uniquement en secours lors de la défaillance de la ligne commutée. The system according to the invention makes it possible to avoid these drawbacks by using two different lines: a switched line used normally and a dedicated line used only for back-up during the failure of the switched line.
Selon une application qui est représentée, le moyen de transmission normal comprend une ligne téléphonique (I) du réseau commuté, un transmetteur téléphonique (2) et un circuit électronique (3) qui contrôle la presence de la tension réseau sur la ligne. According to an application which is shown, the normal transmission means comprises a telephone line (I) of the switched network, a telephone transmitter (2) and an electronic circuit (3) which controls the presence of the network voltage on the line.
En cas de défaillance, supérieure à une durée réglahleode la ligne réseau commutée normale, le circuit électronique (3) aiguille la sortie d'information vers la ligne spécialisée autoprotégée (4) à travers le boitier d'extrémité (5). Si une alarme survient par le cable (7)'pendant la défaillance de la ligne commutée normale (I),-elle est transmise immé- diatement par la ligne spécialisée autoprotégée (4). Le circuit électro niqus32ait avancer simultanément d'une unité un compteur d'impulsion sans remise à zéro (6). In the event of a failure, longer than a normal duration of the normal switched network line, the electronic circuit (3) directs the information output to the self-protected dedicated line (4) through the end box (5). If an alarm occurs through the cable (7) 'during the failure of the normal switched line (I), - it is immediately transmitted by the self-protected dedicated line (4). The electronic circuit could simultaneously advance a pulse counter by one unit without resetting to zero (6).
Au cas où un appel par la ligne commutée normale n'aboutirait pas malgré un certain nombre, réglable, de tentatives, le circuit (3) déclenche une alarme par la ligne spécialisée de secours (4) et fait avancer d'une unité le compteur (6). Une alimentation (8) avec batteries et chargeur assure le fonctionnement de l'ensemble en cas de défaillance de l'alimen
tation électrique secteur (9),
Le système objet de l'invention peut être utilisé dans tous les cas où l'on désire une transmission d'alarme discrète et très fiable.In the event that a call via the normal dial-up line is unsuccessful despite a certain, adjustable number of attempts, the circuit (3) triggers an alarm by the dedicated emergency line (4) and advances the counter by one. (6). A power supply (8) with batteries and charger ensures the operation of the assembly in case of failure of the food
electrical sector (9),
The system which is the subject of the invention can be used in all cases where a discreet and very reliable alarm transmission is desired.
Une application particulièrement intéressante est la transmission d'alarme pour les banques en cas de tentative d'effraction de la chambre forte ou en cas de hold up. A particularly interesting application is the alarm transmission for banks in the event of an attempted burglary of the vault or in the event of a hold-up.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8200332A FR2519450A1 (en) | 1982-01-07 | 1982-01-07 | Alarm signal transmission using telephone lines - includes normal switched line and protected direct line for use upon failure of first line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8200332A FR2519450A1 (en) | 1982-01-07 | 1982-01-07 | Alarm signal transmission using telephone lines - includes normal switched line and protected direct line for use upon failure of first line |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2519450A1 true FR2519450A1 (en) | 1983-07-08 |
Family
ID=9269887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8200332A Withdrawn FR2519450A1 (en) | 1982-01-07 | 1982-01-07 | Alarm signal transmission using telephone lines - includes normal switched line and protected direct line for use upon failure of first line |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2519450A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2584217A1 (en) * | 1985-06-27 | 1987-01-02 | Fayette Claude | Discreet and high-security remote surveillance and alarm installation |
FR2593309A1 (en) * | 1986-01-23 | 1987-07-24 | Gestion Inf Nle Et | DEVICE AND METHOD FOR REMOTELY MONITORING SITES COMPRISING MEANS FOR DETECTING ABNORMAL EVENTS, PHONE LISTENING MEANS AND VIDEO OBSERVATION MEANS |
EP0382544A2 (en) * | 1989-02-08 | 1990-08-16 | Cableguard, Inc. | Alarm system utilizing wireless communication path |
-
1982
- 1982-01-07 FR FR8200332A patent/FR2519450A1/en not_active Withdrawn
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2584217A1 (en) * | 1985-06-27 | 1987-01-02 | Fayette Claude | Discreet and high-security remote surveillance and alarm installation |
FR2593309A1 (en) * | 1986-01-23 | 1987-07-24 | Gestion Inf Nle Et | DEVICE AND METHOD FOR REMOTELY MONITORING SITES COMPRISING MEANS FOR DETECTING ABNORMAL EVENTS, PHONE LISTENING MEANS AND VIDEO OBSERVATION MEANS |
EP0236170A1 (en) * | 1986-01-23 | 1987-09-09 | Segin Societe D'etudes Et De Gestion Informatique Nouvelle | Device and method for the remote monitoring of sights, incorporating abnormal events detection means, acoustic listening means and video watching means |
EP0382544A2 (en) * | 1989-02-08 | 1990-08-16 | Cableguard, Inc. | Alarm system utilizing wireless communication path |
EP0382544A3 (en) * | 1989-02-08 | 1992-02-05 | Cableguard, Inc. | Alarm system utilizing wireless communication path |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BE1010252A3 (en) | Concept of security and interactive two-way which identifies and protects data transmission or multiple alerts. | |
US8369487B2 (en) | Enhanced 911 notification for internet enabled alarm system | |
US5737391A (en) | Alarm system backup with cut line detector | |
FR2584217A1 (en) | Discreet and high-security remote surveillance and alarm installation | |
FR2696607A1 (en) | Apparatus and method for identifying a station making an emergency call. | |
US6900726B2 (en) | System and method for fiber optic communication with safety-related alarm systems | |
EP0210889B1 (en) | High-security modular monitoring and alarm centre and operating method therefor | |
FR2519450A1 (en) | Alarm signal transmission using telephone lines - includes normal switched line and protected direct line for use upon failure of first line | |
FR2633762A1 (en) | AUTOMATED SAFETY SYSTEM FOR NEIGHBORHOOD | |
US4737776A (en) | Circuit for detecting cut telephone service line and transmitting signal over telephone trunk line | |
CA2428142C (en) | Luminous device providing warning and indication of emergency exit | |
US4258357A (en) | Alarm signalling systems | |
EP0236170A1 (en) | Device and method for the remote monitoring of sights, incorporating abnormal events detection means, acoustic listening means and video watching means | |
EP0148708A1 (en) | Security device for the surveillance of premises, particularly of dwellings | |
FR2621546A2 (en) | SAFETY AND ALARM PROTECTION DEVICE FOR MOTOR VEHICLE | |
US5768343A (en) | Alarm system backup | |
FR2501879A1 (en) | DEVICE FOR THE PROTECTION OF PREMISES LIKE RESIDENCES | |
FR2578993A1 (en) | METHOD FOR ENSURING MONITORING OF PERSONS AND / OR PROPERTY AND SYSTEM FOR IMPLEMENTING SAID METHOD | |
FR2478855A1 (en) | Remote monitoring system with alarms - uses coded radio transmission to indicate condition of several monitored functions | |
BE1006932A6 (en) | An alarm system. | |
BE1009022A3 (en) | Fence for protecting a site | |
FR2534049A1 (en) | Method and device for monitoring premises, especially dwellings | |
FR2572829A1 (en) | System for protecting against theft, with incorporated confirmation device | |
KR20030078272A (en) | The Security System by using DVR and VoIP Telephony moudle | |
EP1057355B1 (en) | Device and method for detecting the presence of an operating cellular telephone of the gsm type or any other mobile unit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |