EP1282095B1 - Procédé de communication radio dans un système d'alarme - Google Patents

Procédé de communication radio dans un système d'alarme Download PDF

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Publication number
EP1282095B1
EP1282095B1 EP02016660A EP02016660A EP1282095B1 EP 1282095 B1 EP1282095 B1 EP 1282095B1 EP 02016660 A EP02016660 A EP 02016660A EP 02016660 A EP02016660 A EP 02016660A EP 1282095 B1 EP1282095 B1 EP 1282095B1
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EP
European Patent Office
Prior art keywords
users
user
radio transmission
transmission according
list
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 - Lifetime
Application number
EP02016660A
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German (de)
English (en)
Other versions
EP1282095A2 (fr
EP1282095A3 (fr
Inventor
Werner Schropp
Karlheinz Schreyer
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Siemens AG
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Siemens AG
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Publication of EP1282095A3 publication Critical patent/EP1282095A3/fr
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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
    • G08B25/10—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
    • 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
    • G08B25/004—Alarm propagated along alternative communication path or using alternative communication medium according to a hierarchy of available ways to communicate, e.g. if Wi-Fi not available use GSM

Definitions

  • the invention relates to a method for radio transmission in a hazard detection system.
  • Funk is a nearly ideal transmission medium for building technology. Devices with radio technology are quick to install and easy to adapt to changing requirements. However, a disadvantage is the relatively short range in buildings with carrier frequencies in the gigahertz range. If so-called repeaters are used to increase the range, the high energy consumption still requires mains-powered devices. This is especially true for radio equipment in the new SRD band between 868 and 870 MHz.
  • the EP 0811959 B1 describes a radio-controlled security alarm system, in particular fire alarm, intruder alarm, emergency call, paging or alarm system, with at least one detector or a signal detector unit, at least one sub-center and a control center.
  • a detector or a signal signaling unit consists of a transmitter, a receiver, a microprocessor system and a sensor.
  • a sub-center consists of a transmitter, a receiver and a microprocessor system.
  • the control center consists of a transmitter, a receiver and a microcomputer system.
  • the USA 4782846 describes a wireless LAN network for digital data transmission to and from building units, such as homes in the neighborhood, in a region.
  • the object is achieved by a method for radio transmission of the aforementioned type with the features of claim 1.
  • telegrams are transmitted by participants willing to send to the participants via so-called.
  • These have a configuration mode for configuring the subscribers, in which the subscribers look for other subscribers in the configuration mode Search and find other participants in their list.
  • Information about the subscribers who have not found each other directly in the configuration mode is transmitted to the subscribers via the mediating participants, after which these subscribers supplement their lists.
  • the particularly simple configuration method provides that the participants themselves are brought into a configuration mode during the first startup, in which the participants search for the other participants and include them in their lists when they are found. This minimizes the configuration effort.
  • this list also includes a group affiliation.
  • a method with frequency change can be made simpler by the fact that a change of the frequency channels takes place according to an education law known to all participants.
  • the receiving means of the subscribers are cyclically turned on at predetermined times, and senders requesting send preambles containing the address of the subscriber who is to receive the preamble. If a receiving device now receives one of the preambles which is addressed to this receiving device, then the receiving device remains switched on until the complete preamble has been received, and in the event that no preamble has been received, the receiving device is switched off again. In the latter case, the cycles are chosen so that the time interval in which the receiving device is turned off, compared to the time interval in which the receiving device is turned on, by more than a factor of 5 is greater. This method ensures that the receiver remains operational for a few years via a battery, such as a low-cost AA cell.
  • the receiving device changes in the on state, the frequency of the reception frequency to meet the currently valid in the US FCC rule for frequency hopping.
  • the radio communication can be further reduced according to claim 11, in the case of a desired transmission to several intended for the reception of the participants willing to send the preamble only once, and the associated receiving devices remain turned on until the preamble was received.
  • FIG. 1 It is shown how a first subscriber 1 is equipped with a first transmitter 2 and a first receiver 3, wherein the first subscriber 1 with a second subscriber 4 (which also includes a second transmitter 5 and a second receiver 6) and with a third Subscriber 7 (with a third transmitter 8 and a third receiver 9) forms a hazard detection system.
  • the individual subscribers 1, 4, 7 can have, for example, additional sensors which, for example, detect a fire hazard or detect a burglary attempt as motion detectors.
  • subscribers 1, 4, 7 can also assume central functions, for example initiate an alarm or display a building view with the corresponding alarm locations. It is also conceivable that the individual participants have 1,4,7 actuators to close doors, turn on lights or set blinds in motion.
  • the necessary RF receivers in the range of 1 GHz today typically consume 10 to 30 mA from 3 V.
  • the life of a battery should be about 4 years.
  • the receiver checks regularly (for example every 300 ms) whether a subscriber willing to send is active.
  • the settling time of the receiver must be so small that the resulting average current does not load the batteries too much. Settling times of less than 1 ms are currently technically possible.
  • this preamble must be sent for 300 ms to ensure that the subscriber intended for reception then also has its receiver switched on.
  • This preamble does not necessarily have to be empty; it may, for example, contain the entire data telegram.
  • Additional information in the preamble may indicate, for example, the start time of the actual telegram.
  • the receiver is then turned off again until the beginning of the payload, and thus can save power.
  • the frequency of the receiving channels will be changed during the time the receiver is turned on.
  • the preamble is sent out only once and the associated subscribers intended for receiving do not switch off immediately but wait for the telegrams to be exchanged.
  • each subscriber keeps a list that provides information about which next subscriber (mediator) that can reach any other subscriber of the radio cell.
  • a list is exemplary in FIG. 2a shown.
  • the participant 7 is in the first line to be reached Registered participants and in the second line of the designated first mediator.
  • the in FIG. 2a shown participants 7 reaches the participants 5,6 and 8 directly, while the participants 1 to 4 on the participants 5, the participants 9 and 10 can be reached via the participant 6.
  • the statement that the subscriber 2 is to be reached via the subscriber 5 does not mean that the subscriber 5 has direct contact with the subscriber 2.
  • Another intermediary may well be provided, as shown in the example list of subscriber 5 in FIG. 2b is shown.
  • the first-time extraction of the list is done without an additional tool.
  • the following steps are performed: first, the first participant of the radio cell is brought into a configuration mode. The subscriber searches for existing subscribers in configuration mode. Since the first party does not find another such party, that party itself defines a cell number and waits for other participants to log in to it.
  • the second station of the radio cell is put in the configuration mode. He finds the participant 1 and is integrated into the system as number2. Both now each have a place in their list, as in FIG. 3a for the participant 1 and FIG. 3b for the participant 2 is shown.
  • the third party is brought into the configuration mode. If, for example, he finds only subscriber 2, but not subscriber 1, he can have his list transmitted to him. Thus, the third participant knows that he can reach the participant 1 via the participant 2. The participant 2 now transmits to the participant 1 that the participant 3 can reach him (the participant 2). The corresponding stored lists then correspond to the participant 1 of the FIG. 4a , for the participant 2 of the FIG. 4b and for the participant 3 of the Figure 4c ,
  • n tries to re-establish the connection via another subscriber. For this purpose, this participant turns to the participants, which he can reach directly and checks whether they have contact to n. If so, the participant will correct his list accordingly. For the participant m the corresponding applies.
  • each participant of a radio cell can be assigned to one or more functional groups. These function groups are mapped in further lines of the lists as described in FIG. 5 represented by the letters A, B and C.
  • each participant, as shown, at the same time belong to several groups, as it is in the example of the participants 4.7, which also belongs to the groups A and B. With the help of such groups, for example, lamp collectives can be switched together.
  • a broadcast message is now sent to such a group, and a subscriber receives such a message and belongs to the specified collective, he executes the command, even if he is not addressed directly to him. In this case, a receipt is omitted. In this way, the reaction time of a group can be drastically shortened.
  • a following directly addressed command with the same content has no effect, but is acknowledged.
  • To optimize the lists it is envisaged that an excellent subscriber of the cell has the right to optimize the list of other subscribers. For this purpose, this excellent participant collects the lists of all participants and optimizes them on the basis of, for example, further attributes of the connections such as field strength or error frequency. After the excellent subscriber has optimized the cell's connection network, He sends the lists back to the individual participants.
  • FIG. 6 For systems with frequency changes, it is additionally provided that it is shown in the lists via which frequency channel the respective subscriber can be reached in the next cycle.
  • FIG. 6 One such example is in FIG. 6 shown.
  • this sends a telegram to the subscriber 8 he turns to the subscriber 7 and uses it for the frequency channel No. 12. Since the channel numbers must be changed regularly, this has in the context of normal telegrams to happen. The future channel number of the old telegram will be indicated.
  • the channel change is carried out according to an education law known to all subscribers, then even in the case in which a telegram is lost, the corresponding partner can einphasen by the fact that he tries to restore the follow-up channels according to the Education Act contact.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Alarm Systems (AREA)

Claims (11)

  1. Procédé de radiotransmission dans un système d'alarme comprenant plusieurs abonnés (1, 4, 7) qui comportent à chaque fois un émetteur (2, 5, 8) et un récepteur (3, 6, 9),
    - des télégrammes étant transmis par des abonnés souhaitant émettre (1, 4, 7) vers un abonné prévu pour la réception (1, 4, 7) par le biais d'un ou de plusieurs abonnés intermédiaires (1, 4, 7),
    - une liste étant enregistrée dans un dispositif de mémorisation des abonnés (1, 4, 7), liste dans laquelle une entrée de liste est associée à chacun des abonnés prévus pour la réception (1, 4, 7), entrée de liste qui, dans le cas où l'abonné prévu pour la réception (1, 4, 7) est directement joignable, est le numéro de cet abonné (1, 4, 7) et qui, en cas de non accessibilité directe, est le numéro de l'abonné intermédiaire suivant (1, 4, 7),
    - les abonnés présentant, pour la configuration des abonnés (1, 4, 7), un mode de configuration dans lequel les abonnés (1, 4, 7) cherchent d'autres abonnés (1, 4, 7) dans le mode de configuration et, lorsqu'ils trouvent d'autres abonnés (1, 4, 7), les intègrent dans leur liste et
    - des informations sur les abonnés (1, 4, 7) qui ne se sont pas trouvés directement dans le mode de configuration étant transmises par les abonnés intermédiaires (1, 4, 7) à ces abonnés (1, 4, 7), après quoi ces abonnés (1, 4, 7) complètent leurs listes.
  2. Procédé de radiotransmission selon la revendication 1, caractérisé en ce que plusieurs abonnés (1, 4, 7) sont regroupés en un groupe et l'appartenance au groupe est également mentionnée dans la liste.
  3. Procédé de radiotransmission selon la revendication 2, caractérisé en ce que certains télégrammes sont envoyés à un groupe et tous les abonnés qui appartiennent au groupe en question observent le contenu de ces certains télégrammes.
  4. Procédé de radiotransmission selon l'une des revendications 1 à 3, caractérisé en ce que l'on mentionne dans la liste le canal de fréquence sur lequel l'abonné correspondant (1, 4, 7) peut être joint.
  5. Procédé de radiotransmission selon la revendication 4, caractérisé en ce qu'un changement des canaux de fréquence s'effectue selon une loi de formation connue de tous les abonnés (1, 4, 7).
  6. Procédé de radiotransmission selon l'une des revendications 1 à 5,
    caractérisé
    - en ce que, en cas de perte de la liaison de deux abonnés (1, 4, 7), l'abonné souhaitant émettre (1, 4, 7) demande à tous les abonnés à joindre directement (1, 4, 7) sans l'aide des abonnés intermédiaires si l'abonné prévu pour la réception (1, 4, 7) peut être joint par ces abonnés à joindre (1, 4, 7) et
    - en ce que, dans le cas où l'abonné prévu pour la réception (1, 4, 7) peut être joint par le biais d'un autre abonné à joindre directement (1, 4, 7), la liste est corrigée en conséquence chez l'abonné souhaitant émettre (1, 4, 7).
  7. Procédé de radiotransmission selon l'une des revendications 1 à 6,
    caractérisé
    - en ce que les listes de tous les abonnés (1, 4, 7) sont transmises à un abonné désigné (1, 4, 7),
    - en ce que cet abonné désigné (1, 4, 7) optimise les listes des autres abonnés (1, 4, 7) et
    - en ce que l'abonné désigné (1, 4, 7) envoie les listes optimisées aux autres abonnés (1, 4, 7) qui les enregistrent dans leur unité de mémoire à la place de la liste initiale.
  8. Procédé de radiotransmission selon l'une des revendications 1 à 7,
    caractérisé
    - en ce que les récepteurs (3, 6, 9) sont mise en marche de manière cyclique à des instants prédéfinis et
    - en ce que les récepteurs (3, 6, 9) restent en marche jusqu'à la fin de l'ensemble du préambule en cas de réception d'un préambule et sont éteints si aucun préambule n'est reçu, de manière à ce que, dans ce cas, l'intervalle de temps pendant lequel le récepteur (3, 6, 9) est éteint est supérieur de plus du facteur 5 par rapport à l'intervalle de temps pendant lequel le récepteur (3, 6, 9) est est marche.
  9. Procédé de radiotransmission selon la revendication 8, caractérisé
    en ce que les abonnés de communication changent le canal de fréquence.
  10. Procédé de radiotransmission selon l'une des revendications 8 ou 9, caractérisé
    - en ce que le moment de démarrage d'un télégramme de données est transmis dans le préambule,
    - en ce que le récepteur (3, 6, 9) est éteint après la réception du moment de démarrage et est remise en marche à ce moment de démarrage et
    - en ce que l'abonné souhaitant émettre (1, 4, 7) envoie le télégramme au moyen de son émetteur (2, 5, 8) à ce moment de démarrage et ce télégramme est reçu par le récepteur (3, 6, 9).
  11. Procédé de radiotransmission selon l'une des revendications 8, 9 ou 10, caractérisé en ce que l'abonné souhaitant émettre (1, 4, 7) n'envoie qu'une seule fois le préambule avec les adresses de réception correspondantes dans le cas d'une transmission souhaitée vers plusieurs abonnés prévus pour la réception (1, 4, 7).
EP02016660A 2001-08-03 2002-07-25 Procédé de communication radio dans un système d'alarme Expired - Lifetime EP1282095B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10138230 2001-08-03
DE10138230 2001-08-03
US10/233,217 US20040203344A1 (en) 2001-08-03 2002-09-03 Method of radio transmission in a danger alarm system

Publications (3)

Publication Number Publication Date
EP1282095A2 EP1282095A2 (fr) 2003-02-05
EP1282095A3 EP1282095A3 (fr) 2003-10-15
EP1282095B1 true EP1282095B1 (fr) 2010-09-01

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EP (1) EP1282095B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004039026B3 (de) * 2004-08-11 2006-06-08 Siemens Ag Verfahren zur Funkübertragung in einem Gefahrenmeldesystem
ITBA20040059A1 (it) * 2004-12-23 2005-03-23 Matrix Srl Sistema di localizzazione di persone , animali e cose , tramite innovativa rete di ricetrasmettitori senza cavi e a basso consunmo energetico

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4782846A (en) 1986-11-13 1988-11-08 Ting Lawrence S Footing support for securement of tent
US4792946A (en) * 1987-04-07 1988-12-20 Spectrum Electronics, Inc. Wireless local area network for use in neighborhoods
DE4036639A1 (de) * 1990-11-16 1992-05-21 Esser Sicherheitstechnik Verfahren zur ermittlung der konfiguration der melder einer gefahrenmeldeanlage und fuer die anlagenkonfigurationsbestimmung geeigneter melder
DE19622880A1 (de) 1996-06-07 1997-12-11 Grundig Ag Funkgesteuerte Gefahrenmeldeanlage mit unterzentralen und sicherer Datenkommunikation zwischen den einzelnen Komponenten
EP0833288B1 (fr) 1996-09-30 2003-08-20 Siemens Aktiengesellschaft Procédé pour la transmission radioélectrique de données des capteurs et système d'alarme radio
EP0859502B1 (fr) * 1997-02-13 2003-10-29 Monitoring Technologies Limited Système de signalisation d'alarm
JP3315896B2 (ja) * 1997-07-23 2002-08-19 松下電器産業株式会社 ページャ
US6058137A (en) * 1997-09-15 2000-05-02 Partyka; Andrzej Frequency hopping system for intermittent transmission
WO2000013376A1 (fr) * 1998-08-28 2000-03-09 Integral Access, Inc. Communication de donnees a redondance des chemins
ATE317564T1 (de) * 2000-04-10 2006-02-15 Zensys As Rf-gesteuertes hausautomatisierungssystem mit doppelfunktionalen netzknoten
US6879806B2 (en) * 2001-06-01 2005-04-12 Zensys A/S System and a method for building routing tables and for routing signals in an automation system
US20030105856A1 (en) * 2001-11-30 2003-06-05 Telefonaktiebolaget L M Ericsson (Publ) Meaningful alarm notification structure for alarm identification

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Publication number Publication date
EP1282095A2 (fr) 2003-02-05
EP1282095A3 (fr) 2003-10-15
US20040203344A1 (en) 2004-10-14

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