EP0599192A1 - Procédé pour la surveillance et le fonctionnement d'une liaison radio entre capteurs et unité centrale d'un système d'alarme - Google Patents

Procédé pour la surveillance et le fonctionnement d'une liaison radio entre capteurs et unité centrale d'un système d'alarme Download PDF

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Publication number
EP0599192A1
EP0599192A1 EP93118557A EP93118557A EP0599192A1 EP 0599192 A1 EP0599192 A1 EP 0599192A1 EP 93118557 A EP93118557 A EP 93118557A EP 93118557 A EP93118557 A EP 93118557A EP 0599192 A1 EP0599192 A1 EP 0599192A1
Authority
EP
European Patent Office
Prior art keywords
central unit
monitoring
sensors
alarm
alarm system
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
Application number
EP93118557A
Other languages
German (de)
English (en)
Other versions
EP0599192B1 (fr
Inventor
Horst Grundig E.M.V. Elektro-Mech. Elsinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grundig AG
Original Assignee
Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH filed Critical Grundig EMV Elektromechanische Versuchsanstalt Max Grundig GmbH
Publication of EP0599192A1 publication Critical patent/EP0599192A1/fr
Application granted granted Critical
Publication of EP0599192B1 publication Critical patent/EP0599192B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a method for monitoring and operating a radio link between the outstations and the central unit of an alarm system according to the preamble of claim 1.
  • alarm systems are usually installed that enable interior monitoring and exterior skin protection. Even in comparatively small buildings, a large number of individual sensors are necessary in order to monitor the individual rooms and their access options, for example windows.
  • the European patent application EP O 253 156 A1 proposes to install a communication unit in every room.
  • This communication unit is connected to the central unit via an alarm line.
  • the individual monitoring sensors are equipped with a transmitting and receiving device, so that they are wirelessly connected to the communication unit.
  • the installation effort is considerably reduced, but lines still have to be laid in the individual rooms.
  • the data telegrams must be exchanged between the central unit and the signaling units at a certain time interval in order to be able to detect interference on the radio link. This additional exchange of data telegrams consumes additional energy. Since the signaling units with battery, rechargeable battery or If solar energy has to be operated in order not to lose the advantage of wireless installation, the additional load from the regular data telegrams can significantly shorten the battery life or, in the case of solar power supply, require a more powerful solar cell.
  • An improvement in power consumption is achieved in a radio transmission method according to European laid-open specification 0 293 627 A1, in that the front-door stations remain switched off as long as no information is present, i.e. as long as there is no alarm.
  • the outstations are only switched on in the event of an alarm.
  • the central unit carries out a total poll at regular intervals, in which all outstations are polled simultaneously. Only in the event of an alarm, i.e. when at least one front-door station is switched on for the total polling, is a polling cycle started, in which all front-door stations are polled one after the other.
  • This measure reduces energy consumption, but it also reduces the security of the alarm system because data is only exchanged in the event of an alarm.
  • a defective or out-of-order outdoor station is not recognized as defective, but as an outdoor station to which no information is available, i.e. there is no alarm.
  • the invention is therefore based on the object of reducing the additional energy consumption caused by the exchange of the data telegrams to a minimum, the reliability of the alarm system being at least retained or improved.
  • the field strength in the radio channels available for the alarm system is monitored in the receiver of the central unit or the external stations, for example monitoring sensors. Depending on the result of the monitoring, the time intervals for exchanging the data telegrams are then determined.
  • interference field strengths can be caused by other devices that work in the microwave range, or they are generated with the intention of disrupting the radio alarm system.
  • a data telegram exchange is initiated more frequently than in normal operation. In normal operation, ie if no interference field strength is detected, a data telegram exchange is initiated, for example, every 20-30 seconds. In interference mode, ie when an interference field strength is detected, the data telegram exchange takes place, for example, every 4-5 seconds. The association of property insurers is currently stipulating a data telegram exchange every 10 seconds. If one assumes that there is no interference during the majority of the time, the average time between two data messages is about 25 seconds is, the energy consumption can be reduced by a factor of 2.5 through the security queries, without having to accept restrictions in the operational safety of the alarm system.
  • the data telegrams not only contain information about the security of the radio link, but if at the same time information about the functionality of the reporting units is transmitted. For example, the functionality of the sensors or the transmitter / receiver units can be monitored by the data telegram. In this way, the data telegrams can also be used to check the functionality, the energy consumption remaining low, since there is no need for a separate exchange of information.
  • This configuration of the invention makes it possible to change the batteries or the rechargeable battery only when the need for this is present.
  • the user of the alarm system is no longer forced to carry out a precautionary replacement of the energy store without there being a concrete need to avoid that Signaling units fail due to a lack of power supply.
  • Another embodiment of the invention provides that an alarm is triggered for a predetermined time when the data telegram exchange is interrupted. This measure ensures that the alarm is activated, for example, in the event of a failure of monitoring sensors due to disassembly or destruction.
EP93118557A 1992-11-26 1993-11-18 Procédé pour la surveillance et le fonctionnement d'une liaison radio entre capteurs et unité centrale d'un système d'alarme Expired - Lifetime EP0599192B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4239702 1992-11-26
DE4239702A DE4239702C1 (de) 1992-11-26 1992-11-26 Verfahren zur Überwachung und zum Betrieb einer Funkstrecke zwischen der Zentraleinheit einer Alarmanlage und ihren Überwachungssensoren enthaltenden Außenstationen

Publications (2)

Publication Number Publication Date
EP0599192A1 true EP0599192A1 (fr) 1994-06-01
EP0599192B1 EP0599192B1 (fr) 1998-10-28

Family

ID=6473663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93118557A Expired - Lifetime EP0599192B1 (fr) 1992-11-26 1993-11-18 Procédé pour la surveillance et le fonctionnement d'une liaison radio entre capteurs et unité centrale d'un système d'alarme

Country Status (3)

Country Link
EP (1) EP0599192B1 (fr)
AT (1) ATE172807T1 (fr)
DE (2) DE4239702C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0651362A1 (fr) * 1993-10-30 1995-05-03 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig GmbH & Co. KG Système radio d'alarme à plusieurs canaux à transmission à saut de fréquence
EP0742539A1 (fr) * 1995-05-10 1996-11-13 Telenot Electronic Gmbh Système radio d'alarme
GB2330230A (en) * 1997-10-11 1999-04-14 Menvier Alarm or detection system

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4417632C2 (de) * 1994-05-19 1998-10-22 Diehl Stiftung & Co Verfahren zum Betreiben einer Funkalarmanlage
DE4423171A1 (de) * 1994-07-04 1996-01-18 Norbert Schaaf Vorrichtung zum Scharfschalten und zum zwangsläufigen Unscharfschalten einer Alarmanlage
DE19506385C2 (de) * 1995-02-23 2002-03-07 Peter John Goddard Drahtlose Gefahren-Meldeanlage und Meldeverfahren
FR2766599B1 (fr) * 1997-07-23 1999-09-03 Elf Antar France Dispositif de detection d'evenements
FR2776100B1 (fr) * 1998-03-12 2000-08-25 Bruno Enea Systeme electronique destine a l'identification d'objets afin d'en eviter la perte, le vol ou le deplacement
FR2985308B1 (fr) * 2011-12-28 2020-06-05 Twipi Group Dispositif de suivi a distance de la temperature d'un local
GB2554744B (en) * 2016-10-07 2021-11-24 Orisec Ltd Control panel for a security alarm system

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2207266A (en) * 1987-07-24 1989-01-25 Scanning Technology Limited Fire detection systems
EP0484880A2 (fr) * 1990-11-05 1992-05-13 Norbert Schaaf Système radio d'alarme

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0253156A1 (fr) * 1986-06-25 1988-01-20 Siemens Aktiengesellschaft Système de signalisation d'effraction
EP0293627A1 (fr) * 1987-05-19 1988-12-07 Ascom Radiocom AG Méthode de transmission radio

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2207266A (en) * 1987-07-24 1989-01-25 Scanning Technology Limited Fire detection systems
EP0484880A2 (fr) * 1990-11-05 1992-05-13 Norbert Schaaf Système radio d'alarme

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0651362A1 (fr) * 1993-10-30 1995-05-03 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig GmbH & Co. KG Système radio d'alarme à plusieurs canaux à transmission à saut de fréquence
EP0742539A1 (fr) * 1995-05-10 1996-11-13 Telenot Electronic Gmbh Système radio d'alarme
GB2330230A (en) * 1997-10-11 1999-04-14 Menvier Alarm or detection system
GB2330230B (en) * 1997-10-11 2001-06-20 Menvier Alarm or detection system
GB2358504A (en) * 1997-10-11 2001-07-25 Menvier Alarm or detection system
GB2358504B (en) * 1997-10-11 2002-01-09 Menvier Alarm system

Also Published As

Publication number Publication date
DE59309097D1 (de) 1998-12-03
ATE172807T1 (de) 1998-11-15
DE4239702C1 (de) 1994-03-24
EP0599192B1 (fr) 1998-10-28

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