EP0729124B1 - Système de signalisation de risques sans fils et procédé - Google Patents

Système de signalisation de risques sans fils et procédé Download PDF

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Publication number
EP0729124B1
EP0729124B1 EP96100688A EP96100688A EP0729124B1 EP 0729124 B1 EP0729124 B1 EP 0729124B1 EP 96100688 A EP96100688 A EP 96100688A EP 96100688 A EP96100688 A EP 96100688A EP 0729124 B1 EP0729124 B1 EP 0729124B1
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EP
European Patent Office
Prior art keywords
signalling
signal
radio
centre
alarm
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
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EP96100688A
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German (de)
English (en)
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EP0729124A1 (fr
Inventor
Peter John Goddard
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GODDARD, PETER JOHN
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Individual
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Application filed by Individual filed Critical Individual
Priority to EP97122284A priority Critical patent/EP0834846B1/fr
Publication of EP0729124A1 publication Critical patent/EP0729124A1/fr
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
    • G08B29/188—Data fusion; cooperative systems, e.g. voting among different detectors
    • 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
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/16—Security signalling or alarm systems, e.g. redundant 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
    • G08B25/008—Alarm setting and unsetting, i.e. arming or disarming of the security system

Definitions

  • the invention relates to a signaling center for a wireless Alarm system, according to the preamble of claim 1, and to a wireless hazard - Merde system with one Reporting center, as well as on a Process for wireless hazard reporting according to the generic term of claim 20.
  • EP-A-0 484 880 Such alarm systems and methods known from EP-A-0 484 880 are used, for example for the delivery of burglary, fire, home automation or other fault messages or for emergency signaling used.
  • Previously common wireless hazard detection systems have technical features very simple radio modules that are easy to get through Interference fields, such as those from local oscillators, TV sound carriers or computer clock signals and their Harmonics are caused, can be influenced.
  • FIG. 5 shows a block diagram of such an alarm system with a signaling center 1 and various signaling devices such as sensors 2 (motion detectors, glass break sensors or door contact sensors), an emergency transmitter 5 and a radio lock transmitter 6, which when locking a door a radio signal to activate the building to be secured from the alarm system.
  • sensors 2 motion detectors, glass break sensors or door contact sensors
  • radio lock transmitter 6 which when locking a door a radio signal to activate the building to be secured from the alarm system.
  • Every reporting device participating in radio communication is identified with an individual code, a so-called Unique code. Learns in an installation mode the alarm center 1 all existing alarm devices.
  • the control center 1 permanently transmits the transmission channel monitored for malfunction or sabotage by unauthorized access and the user is constantly informed about the effectiveness the backup informed.
  • a report-relevant event i.e. at Triggering a sensor sends the sensor in question short coded radio signal from the control panel is received and regarding the delivery of an alarm a signaling device 7 (flash of light and / or siren) and / or the forwarding of the alarm message via a public Telephone network 4 is evaluated.
  • a signaling device 7 flash of light and / or siren
  • the alarm message is forwarded via the telephone network 4 via a telephone dialer 3.
  • a block is after a certain Time displayed on control panel 1, but does not to trigger an alarm.
  • FTZ guideline 17 TR 2100 for "telecontrol radio systems small power of the non-public land mobile radio (nömL) "is only permitted for alarm purposes, for a maximum of 30 seconds of radio signals in one Transfer direction.
  • the reporting devices send the wireless Hazard detection system only in the event of a relevant event, i.e. a short radio signal only when triggered whose duration may not exceed 30 seconds, a duration of approximately 1 second is usually selected becomes.
  • the reporting devices After an alarm signal for a predetermined period of time deactivated and in a so-called "Sleep state" moved.
  • the burglar interferes with the alarm system by means of a jammer such that the signals from the signaling devices are no longer identifiable by the control center 1. It is therefore impossible to trigger an alarm and the system is blocked. After the approx. 1 second transmission time has expired the activated signal sensors are put to sleep, so that the burglar turn off the jammer and pass the deactivated signaling devices without triggering the alarm can.
  • EP-A-0 484 880 shows a reporting center for a wireless notification system and a notification procedure at the beginning Art.
  • Radio transmitters of the same frequency are used simultaneously several radio messages with different carrier frequencies sent out.
  • the radio messages submitted at the same time are sent by a Receive n-level receiver level. So the different carrier frequencies within the through the Receive antenna or the receive filter of the receiver stage predetermined reception frequency band, where possible large number of radio messages of different frequencies must be exceeded at the same time to reduce the probability of interference to keep it sufficiently low. They are also complex Coding and evaluation measures required.
  • the above-mentioned security measures are extremely important high circuit complexity to meet the security requirements to meet the property insurer. Furthermore are they are relatively ineffective in broadband interference like them for example by the aforementioned computer clock signals od-gl. are caused because these cover the entire transmission frequency range to disturb.
  • DE 689 20 711 T2 shows a method and System for wireless signal transmission of multiple radio messages using two radio signals each with different Frequencies f0 and f1 or f1 and f2.
  • the two Radio signals of a radio message are received by a receiving antenna receive. Both frequency values are therefore also here the radio message within the reception frequency range the associated receiving antenna, which also results in a Susceptibility to interference with regard to broadband interference signals leads.
  • This object is achieved by a reporting center according to the claim 1 and a wireless hazard alarm system with such a reporting center, and by a method for wireless hazard notification according to claim 20.
  • the reduced probability of interference leads to reduced Coding requirements and thus a further reduction of the circuitry, because complex coding and a associated microprocessor control of the alarm center are avoidable.
  • FIG. 1 A block diagram of the wireless Hazard detection system according to an embodiment is in Fig. 1 shown.
  • the hazard detection system consists of a notification center 1 with a receiving part 10 and a transmitting part 11, one or several motion detectors 21, contact detectors 20, smoke detectors 22 and temperature or water alarms 23 as alarm devices, a hand transmitter 5, a remote control 8 and one Lock transmitter 6 as control devices for the hazard alarm system, as well as a universal receiver 710 for an optical and acoustic signaling device 71 and an optical and acoustic signaling device 70 with integrated Universal receiver.
  • the signaling center is the transmission channel when exposed to external signals 1 equipped with a test transmitter that is connected with a remote test recipient or Transponder 24 is used for checking.
  • the receiving part 10 of the signaling center 1 has two antennas 90 and 91 for dual frequency operation. Furthermore are on the front of the housing a display panel 100 and a Key switch 110 for activation (arming) or Deactivation (deactivation) of the hazard alarm system ordered.
  • the receiving part 10 of the control panel 1 is included an internal tone generator with volume control and one acoustic signal generator arranged on a main circuit board such as a piezo buzzer.
  • the signaling devices send when a corresponding occurs alarm-relevant events, one alarm signal each, a third-party warning signal (sabotage signal) or on Battery discharge warning signal on two different frequencies out.
  • the receiving center 1 receives one of these signals on both frequency channels leads to a corresponding signaling.
  • frequencies from the following frequency range pairings can be used in dual-frequency operation, with one of the frequency values being used in a single-frequency operation that is also possible: Germany, Austria, Switzerland 40/433 MHz Great Britain 173/418 MHz France 152/433 MHz
  • the transmitters of the reporting devices may only Radiate a radio signal for a maximum of 30 seconds. Therefore, and for reasons of energy saving, the Motion detector 21 after emitting an alarm signal in one temporary deactivation state (sleep time).
  • the above-mentioned possibility of blocking the hazard detection system by means of an external signal with the aim the subsequent passing of the now deactivated Avoiding motion detector 21 is both the duration of sleep as well as the number of possible alarm signal deliveries predeterminable before initiating the sleeping time, although only a new alarm trigger, but not a signal extension is possible.
  • the sleep time of the motion detectors can, for example, in 3 Levels between 1 and 6 minutes can be set.
  • Is the hazard alarm system in the activated, i.e. armed, operating state for example an evaluation is carried out in such a way that an alarm signal must be received on both frequency channels in order to become one Alert if not one of the frequency channels is disturbed by an external signal.
  • An external signal interference on a frequency channel connected to reception an alarm signal on the other frequency channel be evaluated as an alarm condition and thus become a Lead alarm.
  • An intentional interference signal with the aim of Blocking the hazard alarm system can therefore be reliable distinguished from an unintentional external signal interference will.
  • the above-mentioned measures can reduce the susceptibility to faults with regard to external signal interference from external electromagnetic Sources of interference can be considerably reduced.
  • the hazard alarm system also operated in single-frequency mode be, each of the signaling devices an alarm signal, a sabotage signal or a battery discharge warning signal emits on a frequency.
  • the receiving center 1 receives one of these signals leads to a corresponding signaling.
  • Detector monitoring can be carried out at the notification facilities at a random time within a predeterminable Duration of, for example, 6 hours each Issue a signal and thereby signalize its operational readiness.
  • a detector monitoring fault signal is generated generates one to the relevant reporting device indicates the relevant zone.
  • the generation of the detector monitoring interference signal is a full value Alerting or fault indication by means of an optical Display when the hazard alarm system is subsequently deactivated have as a consequence.
  • the hazard alarm system can be radio-controlled or wired being controlled.
  • the key switch 110 has three switch positions Deactivate, partially activate (internal alarm) or reset the alarm system.
  • the receiving unit 10 of the control center 1 comprises three wired inputs for full activation (external alarm), Partially activate (internal alarm) or to activate the zones, that are not among the partially activated (Two-range switching). These inputs are, for example controlled via a switched terminating resistor and supervised.
  • the lock transmitter 6 can be constructed according to the contact detector with the exception of the lock monitoring input, through an input for a remote key switch contact is replaced.
  • the lock transmitter 6 can be both Activation and a deactivation signal to the alarm center 1 transmitted and can be programmable in such a way that it has a signal for partial or full activation of the Issues hazard alarm system.
  • remote-controlled coding lock 8 By means of the remote-controlled coding lock 8 is a wireless Activation of the system using three different codes possible, with partial activation, full activation or just an activation of the for complete Alarming programmed zones can be selected. Of a raid report to reporting center 1 is also possible.
  • test transmitter can be arranged in the control center 1.
  • the test receiver 24 which in turn is a transmitting device can contain and thus performs a transponder function, is within the surveillance area of the danger alarm system preferably in one of the largest radio ranges distance from the alarm center 1 corresponding to the system arranged.
  • the Test transmitter activated, which then switches on depending on the operating mode Sends test signal on one or two frequencies.
  • the Test receiver 24 receives the test signal and transmits if sufficient In turn, receiving one or more test signals back as acknowledgment.
  • the acknowledgment can also take place via a wired signal, whereby however the installation effort of the Danger alarm system rises.
  • the alarm center 1 If the alarm center 1 does not receive an acknowledgment, it is Transmission path for message signals blocked and one External signal display can be independent of the occurrence of a signal-relevant Event occur so that an early signaling the blocking of the hazard detection system becomes.
  • two Radio test signals of different corresponding to the message signals Frequency emitted by the test transmitter of the control center 1 and both frequency channels for blocking checked.
  • An external signal disturbance is thus not only detected, but also also with regard to their impact on the transmission channel evaluated.
  • a sleep time of 3 minutes can also be programmed be.
  • the contact detector 20 can also be carried out in this way be provided that opening and closing signals or only Opening signals are given.
  • the contact detector 20 can also a wired input for a glass break sensor and an integrated evaluation circuit for evaluating the Glass break sensor emitted signals, so that an additional Message signal can be given in the event of glass breakage.
  • the smoke detector 22 is activated after an alarm signal has been given also deactivated for 3 min, for example (sleep time). This prevents the smoke detector 22 from immediately re-alarming in an alarm state because in smoke is still in its measuring chamber. Such an ongoing one Alarm signal could interfere with other alarm signals to lead.
  • a universal receiver 710 may be provided, either as Alerting interface or as a communication interface is programmable.
  • the universal receiver can be a Metal housing with externally arranged antennas and 10 outputs such as relay outputs, the States of the relay outputs arranged on the housing Illuminated displays such as LEDs can be displayed are.
  • the metal housing causes a reduction in the coupled electromagnetic interference and thus an improved Reception behavior.
  • An additional second receiver can be used for dual-frequency operation be pluggably connected to the main receiver.
  • a transmitter can be present for the delivery of a Sabotage signal to the alarm center 1 upon receipt of a External intervention message, for example via a wired one Sabotage entrance.
  • the universal receiver 710 is used as an alarm interface operated, it generates directly via its relay outputs Control signals for the signaling devices 70, 71.
  • the relay outputs are used to display the received signal type and are connected to the signaling device 70, 71, which generates the alarm control signals itself.
  • the relay outputs can have the following meanings, for example: - alarm - Technical alarm - activation - battery failure - fire - grid failure - sabotage - Detector monitoring fault - raid - External signal interference
  • Fig. 2 shows one perspective and a partially open side view the receiving part 10.
  • the receiving part 10 can be opened by a metal housing be surrounded with separate front part 12 and back part 13.
  • the metal housing protects the receiver circuit from electromagnetic Interference.
  • a motherboard 14 is on the inside of the back part 13 and a display board 15 attached to the inside of the front part 15 of the housing.
  • display board 15 On the display board 15 are display elements such as Light-emitting diodes (LEDs, 19) of the display panel 100 are arranged.
  • the Display board 15 is via a pluggable line connection such as. a flat cable 16 with plug device with the Motherboard 14 connected.
  • the power supply is arranged separately and has one Transformer 17 and an accumulator 18, the Power supply also via a pluggable cable system is connected to the main board 14.
  • the main receiver with integrated signal coding circuit can, for example, be plugged onto the motherboard 14 be an additional one for dual-frequency operation Second receiver can also be plugged into the main board 14 can be arranged.
  • the second receiver can be connected to a further signal coding circuit be dispensed with, since the signal coding already in the signal coding circuit of the main receiver or the Motherboard 14 can be performed.
  • the receivers work according to the overlay principle (super heterodyne receiver) with a narrow intermediate frequency bandwidth and therefore high selectivity.
  • the number of possible system codes is preferably larger than 5000 and the number of available channels is preferred greater than 200.
  • the system coding enables a distinction the radio signals regarding the system (system code), the zones and the types of alarm signals
  • the 40 MHz receiver can either be from a ferrite rod antenna or fed by a flexible wire antenna 90.
  • the 152/179 MHz receiver can use a stub antenna with coaxial connection and the 418/433 MHz receiver from one Full wire antenna 91 can be fed.
  • the receiving part 10 of the signaling center 1 can also have two field strength measuring devices 25, by means of which the reception level noticeable when testing the hazard alarm system is.
  • the transmitting part 11 of the control center 1 can be in its own housings protected against external interference and has a universal transmitter that is pluggable Line connection such as a flat cable with the Main board of the receiving part 10 is connected.
  • the universal transmitter controls the remote optical and acoustic Signaling devices 70, 71 or other remote transmitter devices.
  • the universal transmitter sends output signals accordingly the programming of the main board 14 of the receiving part 10 out, which also from two radio signals corresponding Frequency can be formed.
  • the output signals are around for example, delayed 10 seconds to avoid the risk of Signal collision with incoming message signals from the To prevent signaling devices.
  • the external intervention (sabotage) signaling can, for example via a wire connection to one of the wired Inputs of the receiving part 10 take place.
  • the signaling center 1 has a terminating resistor wired inputs, e.g. a zone entry, a sabotage entrance and a robbery entrance.
  • AUG wired Communication error input
  • the signaling center 1 can transmit radio signals from, for example 8 or 16 wireless zones with corresponding assigned reporting devices can be evaluated.
  • the receiving part 10 of the control center 1 has, for example 4 relay outputs, 10 communication outputs and 3 outputs for illuminated display elements (LEDs) 19.
  • two individually protected voltage supply outputs can be used to supply external devices be. Individual protection is of particular importance since this triggers a short circuit when cutting not the entire hazard alarm system decommissioning.
  • the 10 communication outputs can, for example, with your Activation can be switched to a high potential and by driving additional light display elements 19 Display of certain system states can be used.
  • the illuminated display elements 19 are located on the display field 100 of the receiving part 10.
  • the display field 100 of the receiving part 10 is the Reporting center 1 shown.
  • LEDs Light emitting diodes
  • Each of the 16 zones present in this embodiment is a light emitting diode 19 for displaying a message assigned.
  • the zones 1 to 6 can be deactivated individually.
  • the field strength measuring devices 25 are also displayed via LEDs 251, with each of the two Frequency channels a separate display can be provided. In addition, the field strength measuring devices 25 can be assigned indicator light as an external signal interference Cause of reception are displayed.
  • each the switch has three switch positions.
  • a DIP switch Dual In Line Package
  • defining the zones be provided for detector monitoring.
  • FIG. 4A shows a front view of the motion detector 21, the three different detection zones 30 and a focusing device such as a flat lens 31 which both horizontal and vertical coverage zones or a Standard 12x12 masking pattern can contain.
  • 4B shows the motion detector 21 with the front plate removed 32 and sensor unit and a side view of the im Internal board arrangement.
  • a transmitter board 35 with transmitter circuit can be plugged on the motherboard 37, the motherboard in turn on a fixable on the housing of the motion detector 21 Carrier plate 34 is arranged pluggable.
  • the one for the dual frequency Operation requires additional transmitter board 36 with a second transmitter circuit can also on the Main board 37 can be plugged in next to the transmitter board 35 be arranged.
  • the additional transmitter board 36 on the Transmitter board 35 can be arranged pluggable.
  • One can be used as the transmitting antenna for the 40 MHz frequency range Ferrite rod antenna 38 may be present on the front the support plate 34 is arranged, the main and Transmitter boards are located on the back of the carrier plate 34.
  • the higher frequency channel Transmitting antenna for example on the main board 37 or the corresponding transmitter board 35, 36 arranged integrated.
  • the 40 MHz frequency range is not used, you can also both transmit antennas on the corresponding transmitter boards 35, 36 can be arranged integrated, the ferrite rod antenna not applicable.
  • 4C is located between a housing rear wall 39 and the board assembly a battery compartment with a battery 40 or an accumulator.
  • a battery discharge warning signal will either be on detection movement or automatic detector monitoring delivered by the transmitter or transmitters.
  • the structure described above enables a compact Design of the motion detector 21.
  • a wireless hazard detection system with a reporting center and at least one Reporting device, the reporting center one of the Notification device issued in the event of a notification-relevant event Radio message receives and evaluates.
  • the radio message receives and evaluates.
  • the radio message from two radio signals different Frequency, making the probability of interference dramatic is reducible.
  • This can also be done from the registration center a control signal emitted by a signaling device be two-frequency, which also makes a radio-controlled, interference-free Signaling is made possible.
  • One more way to increase security against external signal interference is the provision of reporting facilities at which the duration of a deactivation phase and the number of renewed signaling until the deactivation phase is initiated is programmable.
  • a External signal verification system consisting of test transmitter and - Receiver has an interference signal before an alarm is triggered evaluated with regard to the blocking of the system and thus the interference immunity can be further increased.

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

Claims (20)

  1. Unité centrale de signalisation pour un système de signalisation sans fil, qui reçoit et analyse un message radio généré par un dispositif de signalisation (21) lors d'un événement signifié par un signal, où le message radio est composé d'au minimum deux signaux radio de fréquence différente.
    caractérisée en ce que
    l'unité centrale de signalisation (1) présente deux voies distinctes de réception pour les deux signaux radio avec des dispositifs d'antennes distincts (90, 91), les dispositifs d'antennes présentant différentes plages de fréquences de réception, qui sont séparées entre elles par un interstice de fréquence, et en ce que
    le résultat de l'analyse par l'unité centrale de signalisation (1) lors de la réception de l'un des deux signaux radio dépend d'une perturbation par un signal étranger sur la fréquence de l'autre signal radio.
  2. Unité centrale de signalisation selon la revendication 1,
    caractérisée en ce que
    le message radio comprend un signal d'alarme, un signal d'avertissement d'une intrusion étrangère et un signal d'avertissement de décharge de batterie.
  3. Unité centrale de signalisation selon la revendication 1 ou 2,
    caractérisée par
    un premier et un deuxième dispositif émetteur (11), au moyen desquels en fonction du résultat d'analyse du message radio reçu, un signal radio est envoyé vers un dispositif de signalisation (70, 71) sur une première fréquence, qui se situe à l'intérieur de la première plage de fréquences de réception ou sur une deuxième fréquence qui se situe à l'intérieur de la deuxième plage de fréquences.
  4. Unité centrale de signalisation selon la revendication 3,
    caractérisée en ce que
    les fréquences des signaux radio générés par l'unité centrale de signalisation (1) sont égales aux fréquences des signaux radio générés par le dispositif de signalisation (21).
  5. Unité centrale de signalisation selon l'une des revendications 3 et 4,
    caractérisée en ce que
    le premier et le deuxième dispositif d'émission (11) de l'unité centrale de signalisation (1) sont disposés dans un boítier séparé.
  6. Unité centrale de signalisation selon l'une des revendications 1 à 5,
    caractérisée par un premier et un deuxième dispositif de réception, qui sont disposés dans un boítier métallique (12, 13).
  7. Unité centrale de signalisation selon l'une des revendications 1 à 6,
    caractérisée en ce que
    l'unité centrale de signalisation (1) génère un message lors de la détection d'une perturbation consistant en un signal étranger sur une durée prédéterminée.
  8. Unité centrale de signalisation selon l'une des revendications 1 à 7,
    caractérisée en ce que
    l'unité centrale de signalisation (1) provoque une alarme lors de la détection d'une perturbation consistant en un signal étranger sur l'une des fréquences et de la réception simultanée d'un message d'alarme radio sur l'autre.
  9. Unité centrale de signalisation selon l'une des revendications 1 à 7,
    caractérisée en ce que
    l'unité centrale de signalisation (1) déclenche un état de préalarme pour une durée prédéterminée lors de la détection d'une perturbation consistant en un signal étranger sur l'une des fréquences et de la réception simultanée d'un message d'alarme radio sur l'autre, pendant lequel la réception prolongée d'un message d'alarme radio déclenche une alarme.
  10. Unité centrale de signalisation selon l'une des revendications 1 à 7,
    caractérisée en ce que
    l'unité centrale de signalisation (1) déclenche une alarme si un message d'alarme radio est reçu sur les deux fréquences.
  11. Unité centrale de signalisation selon l'une des revendications 1 à 7,
    caractérisée en ce que
    l'unité centrale de signalisation (1) déclenche une alarme si une perturbation consistant en un signal étranger est détectée sur les deux fréquences.
  12. Système de signalisation sans fils de risques avec une unité centrale de signalisation selon l'une des revendications 1 à 11 et au moins un dispositif de signalisation (21) qui, lors d'un événement signifié par un signal, produit et génère sous forme de message radio au moins deux signaux radio de fréquences différentes, le dispositif de signalisation présentant pour les deux signaux radio deux voies d'émissions distinctes avec des dispositifs d'antennes distincts, et les dispositifs d'antennes présentant différentes plages de fréquences d'émission qui sont séparées les unes des autres par un interstice de fréquence.
  13. Système de signalisation sans fils de risques selon la revendication 12,
    caractérisé en ce que
    le dispositif de signalisation (21) présente un premier et un deuxième dispositif d'émission (35, 36), qui sont agencés de façon enfichable.
  14. Système de signalisation sans fils de risques selon la revendication 12 ou la revendication 13,
    caractérisé par
    un dispositif de réglage pour ajustement de la durée d'une période de désactivation (temps de repos) du dispositif de signalisation (21) et/ ou pour ajustement de la quantité, jusqu'à l'instauration de la période de désactivation, des processus d'activation possibles du dispositif de signalisation (21) lors d'événements successifs signifiés par des signaux.
  15. Système de signalisation sans fils de risques selon l'une des revendications 12 à 14,
    caractérisé en ce que
    le dispositif de signalisation (21) transmet à l'unité centrale de signalisation (1) à des intervalles de temps prédéterminés sur les deux fréquences un message de disponibilité ou de présence pour l'exécution d'un contrôle du dispositif de signalisation.
  16. Système de signalisation sans fils de risques selon la revendication 15,
    caractérisé en ce que
    l'unité centrale de signalisation (1) produit un envoi de signal lors de l'absence d'au moins un message de disponibilité ou de présence du dispositif de signalisation (21).
  17. Système de signalisation sans fils de risques selon l'une des revendications 12 à 16,
    caractérisé par
    un dispositif de test avec un émetteur de test, qui est activé lors de la détection d'un signal étranger par l'unité centrale de signalisation (1) pour générer un signal radio de test sur au minimum l'une des fréquences, et un récepteur de test (24) pour recevoir le signal radio de test et générer vers l'unité centrale de signalisation (1) un signal de confirmation lors de la réception suffisante du signal radio de test.
  18. Système de signalisation sans fils de risques selon la revendication 17, caractérisé en ce que
    le signal de confirmation est retransmis par fil du récepteur de test (24) à l'unité centrale de signalisation (1).
  19. Système de signalisation sans fils de risques selon la revendication 17, caractérisé en ce que
    le récepteur de test comprend un transpondeur (24) qui génère, de son côté, au minimum un signal radio de test d'au minimum une fréquence vers l'unité centrale de signalisation (1).
  20. Procédé pour la signalisation sans fils de risques dans un système de signalisation sans fils de risques avec une unité centrale de signalisation (1) et au minimum un dispositif de signalisation, où lors de l'apparition d'un événement significatif, un message radio est transmis et analysé en vue de déceler un besoin de signalisation
    caractérisé par les étapes suivantes :
    transmission d'au minimum deux signaux radio de fréquences différentes par respectivement deux voies distinctes d'émission et de réception avec des dispositifs d'antennes séparés (90, 91), qui comprennent différentes plages de fréquence d'émission et de réception qui sont séparées les unes des autres par un interstice de fréquence, et
    exploitation d'un signal radio reçu dans l'unité centrale de signalisation (1) en fonction d'une perturbation consistant en un signal étranger sur la fréquence de l'autre signal radio.
EP96100688A 1995-02-23 1996-01-18 Système de signalisation de risques sans fils et procédé Expired - Lifetime EP0729124B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97122284A EP0834846B1 (fr) 1995-02-23 1996-01-18 Système de signalisation de risques sans fils et procédé

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19506385A DE19506385C2 (de) 1995-02-23 1995-02-23 Drahtlose Gefahren-Meldeanlage und Meldeverfahren
DE19506385 1995-02-23

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP97122284A Division EP0834846B1 (fr) 1995-02-23 1996-01-18 Système de signalisation de risques sans fils et procédé

Publications (2)

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EP0729124A1 EP0729124A1 (fr) 1996-08-28
EP0729124B1 true EP0729124B1 (fr) 1998-07-08

Family

ID=7754879

Family Applications (2)

Application Number Title Priority Date Filing Date
EP97122284A Expired - Lifetime EP0834846B1 (fr) 1995-02-23 1996-01-18 Système de signalisation de risques sans fils et procédé
EP96100688A Expired - Lifetime EP0729124B1 (fr) 1995-02-23 1996-01-18 Système de signalisation de risques sans fils et procédé

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP97122284A Expired - Lifetime EP0834846B1 (fr) 1995-02-23 1996-01-18 Système de signalisation de risques sans fils et procédé

Country Status (3)

Country Link
EP (2) EP0834846B1 (fr)
AT (2) ATE168209T1 (fr)
DE (1) DE19506385C2 (fr)

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GB2331415A (en) * 1997-10-28 1999-05-19 Atl Monitors Limited Radio communications system
DE19757235C2 (de) * 1997-12-22 2000-01-05 Honeywell Ag Leitsystem für ein Gebäude bzw. für einen oder mehrere Räume eines Gebäudes
FR2787905A1 (fr) * 1998-12-23 2000-06-30 Cedi Securite Installation de communication asynchrone multifrequence
DE10000412A1 (de) * 2000-01-07 2001-07-26 Kremser Peter Fa Rauchmelder
DE10028333B4 (de) * 2000-06-05 2007-01-11 Gärtner, Erich Sicherheits-Funk-Schaltungsanordnung für ein Abluftsystem
FR2816430B1 (fr) 2000-11-06 2006-06-16 Atral Dispositif et procede de surveillance et/ou d'alarme multi-frequences
US6665385B2 (en) 2001-04-23 2003-12-16 Cardionet, Inc. Medical monitoring system having multipath communications capability
US6664893B1 (en) 2001-04-23 2003-12-16 Cardionet, Inc. Method for controlling access to medical monitoring device service
US6694177B2 (en) 2001-04-23 2004-02-17 Cardionet, Inc. Control of data transmission between a remote monitoring unit and a central unit
SE523429C2 (sv) 2001-04-23 2004-04-20 Jokab Safety Ab Säkerhetsslinga för övervakning av olika säkerhetsgivare
US20050119580A1 (en) 2001-04-23 2005-06-02 Eveland Doug C. Controlling access to a medical monitoring system
US6801137B2 (en) * 2001-04-23 2004-10-05 Cardionet, Inc. Bidirectional communication between a sensor unit and a monitor unit in patient monitoring
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DE10208451A1 (de) * 2002-02-27 2003-09-04 Bremicker Soehne Kg A Fenster-/Türschloss
FR2852134B1 (fr) * 2003-03-04 2005-06-10 Dispositif emetteur-recepteur de securite notamment pour systemes de transport de personnes
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Also Published As

Publication number Publication date
ATE212464T1 (de) 2002-02-15
EP0834846B1 (fr) 2002-01-23
EP0729124A1 (fr) 1996-08-28
EP0834846A2 (fr) 1998-04-08
ATE168209T1 (de) 1998-07-15
EP0834846A3 (fr) 1998-08-05
DE19506385C1 (de) 1996-10-10
DE19506385C2 (de) 2002-03-07

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