EP1244081A1 - Method of radio communication in an alarm system - Google Patents
Method of radio communication in an alarm system Download PDFInfo
- Publication number
- EP1244081A1 EP1244081A1 EP02006120A EP02006120A EP1244081A1 EP 1244081 A1 EP1244081 A1 EP 1244081A1 EP 02006120 A EP02006120 A EP 02006120A EP 02006120 A EP02006120 A EP 02006120A EP 1244081 A1 EP1244081 A1 EP 1244081A1
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- Prior art keywords
- station
- main station
- radio transmission
- detection system
- hazard detection
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- 238000000034 method Methods 0.000 title claims description 31
- 230000005540 biological transmission Effects 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims description 25
- 230000010287 polarization Effects 0.000 claims description 2
- 238000005562 fading Methods 0.000 description 8
- 230000002457 bidirectional effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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Classifications
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- 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
- G08B25/009—Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
-
- 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
Definitions
- the invention relates to a method for radio transmission in a hazard detection system with a main station and several slave stations, the main station and the slave station each have a transmitting and receiving device.
- the hazard detection systems include signaling sensors as secondary stations, the one in the event of a detected danger (fire, burglary) Hazard notification via a radio link to a control center or main station (which also includes repeaters should transmit) in the further to eliminate the danger Measures (alerting the fire department or the police) be initiated.
- the signal sensors each include a transmitting and receiving device and are intended for use self-sufficient in inadequate places, i.e. with a Battery operated.
- EP 0 911 775 is a hazard detection system and a method for radio transmission in such a system known which is bidirectional and its components are designed to save energy. Disorders in one Such systems can be safely recognized in less than 100 s fading holes lead to unnecessary Fault messages.
- DE 199 20 128 A1 describes a portable emergency call system with a satellite-based tracking device and therefore functional federated, mobile telecommunication facility known in which a central data center for permanent interactive connection with the currently active Blocks of different target objects is set up, the blocks each having a mutual data transfer enabling communication module are an indirect link between a target object associated module with the data center including another building block of another target object as a host function.
- a partial solution is achieved by increasing the sensitivity Recipient. This reduces the likelihood of interference but never disappears completely. That leaves In large systems in particular, there is always a certain probability of failure.
- Such a fading hole is between a main station and a slave station recognized as part of a routine check, the slave station can then via the other slave station report to the main station that this - the main station not directly reaching - slave station still functional is and communication via the other slave station he follows.
- the slave station sends its data for so long over the further secondary station to the main station, as long the direct connection to the main station is disturbed.
- a detour can not only be done once, but continuously use for communication between main and secondary station.
- Claim 5 provided in an advantageous manner that the secondary station in this case at a specified time the main station sends a message that the integrity check was faulty, according to which the main station redirection triggers via the other slave station.
- Another easy to implement method according to claim 10 is that at the location of the recipient and or the transmitter is switched to another antenna, which according to claim 11 by more than half the wavelength of the original antenna staggered, according to claim 12 by a different orientation than the original one Antenna or according to claim 13 by a compared to the first Antenna rotated polarization direction marked is.
- An additional change in the spreading conditions between sender and receiver can be according to the procedure the advantageous embodiment of the method according to claim 16 achieve by changing the frequency of transmission becomes. This changes the ways of the waves a little and these are interfered differently. A variation within the 2 MHz wide SRD band (868 MHz to 870 MHz) is sufficient to move the phase by more than 10 ° to push.
- the frequency change method can additionally according to claim 16 for detour transmission via additional substations, as also according to claim 17 in addition to the detour via further substations and in addition to influencing the Antenna may be provided.
- FIG. 1 shows how a main station M, for example the center of a hazard detection system, with a total four slave stations S1, S2, S3 and S4 communicated.
- the secondary stations S1, S2, S3 and S4 can for example Intrusion or fire detection sensors include.
- the main station M can thus take the detour via the additional slave station S2 with the unreachable one Slave station S1 communicate and exchange data.
- the substation S1 is therefore not considered to be disturbed in the main station M. characterized.
- the number of fault messages can thus be reduced reduce significantly.
- the secondary station S1 next to a first antenna 1 has a further antenna 3, which in designated example spatially offset and perpendicular to the first Antenna 1 is arranged. If now the communication between the first antenna 1 and the antenna 2 of the main station M is disturbed, which in turn is due to the dotted connection is shown, so in the secondary station S1 on the further antenna 3 can be switched, which then the communication with the antenna 2 of the main station M.
- the further antenna also at the main station M can be arranged and can be controlled accordingly not only the antennas assigned to the respective stations alternately, but also operated simultaneously, whereby the conditions of dispersion change even more flexibly to let.
- FIG. 3 shows how the secondary station S1 and the Main station M does not communicate with each other via a first frequency F1 can communicate, which in turn by the dotted line is shown while communicating via a second Frequency S2 is easily possible.
- a frequency change can be provided, for example, when the communication is disturbed with the first frequency S1, but it can also a continuous frequency change at predetermined time intervals be provided.
- the detour circuit via another substation, the change the antennas and the frequency change can now do so combined that if one of the ways doesn't work, one of the others is automatically applied.
- the communication between the main station and the slave station disturbed differently can be.
- the main station receives in the frame the integrity check at the given time none Signal from the slave, then try the master and slave communicate with each other on a different frequency. If communication via frequency change is unsuccessful, then the main station can communicate through the diversion trigger via the additional slave station.
- the main station receives the signal received from the slave station for integrity checking and sends your acknowledgment signal, which is not from the secondary station Will be received.
- the substation try to reach the main station in another way while the main station assumes communication be properly completed.
- there is a Extra time slot is provided in which a slave station that has not received an acknowledgment signal and no other communication could set up a telegram with the main station transmitted to the main station. This receives this Telegram in the time slot provided for this, thus learns that the integrity check was not completed and can initiate additional measures, such as communication via another secondary station.
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Alarm Systems (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren zur Funkübertragung in einem Gefahrenmeldesystem mit einer Hauptstation und mehreren Nebenstationen, wobei die Hauptstation und die Nebenstation jeweils eine Sende- und Empfangseinrichtung aufweisen.The invention relates to a method for radio transmission in a hazard detection system with a main station and several slave stations, the main station and the slave station each have a transmitting and receiving device.
Gefahrenmeldesysteme, bei denen Meldungen über Funk übertragen werden, bieten dem Anwender viele Vorteile. Die Gefahrenmeldesysteme umfassen dabei Meldesensoren als Nebenstationen, die im Fall einer detektierten Gefahr (Brand, Einbruch) eine Gefahrenmeldung über eine Funkverbindung an eine Zentrale oder Hauptstation (worunter auch Repeater verstanden werden sollen) übermitteln, in der zur Beseitigung der Gefahr weitere Maßnahmen (Alarmierung der Feuerwehr bzw. der Polizei) eingeleitet werden. Die Meldesensoren umfassen dabei jeweils eine Sende- und Empfangseinrichtung und sollen für einen Einsatz an unzulänglichen Orten möglichst autark, d.h. mit einer Batterie, betrieben werden.Hazard detection systems in which messages are transmitted via radio offer the user many advantages. The hazard detection systems include signaling sensors as secondary stations, the one in the event of a detected danger (fire, burglary) Hazard notification via a radio link to a control center or main station (which also includes repeaters should transmit) in the further to eliminate the danger Measures (alerting the fire department or the police) be initiated. The signal sensors each include a transmitting and receiving device and are intended for use self-sufficient in inadequate places, i.e. with a Battery operated.
Aus EP 0 911 775 ist beispielsweise ein Gefahrenmeldesystem und ein Verfahren zur Funkübertragung in einem solchen System bekannt, welches bidirektional aufgebaut ist und dessen Komponenten energiesparend ausgelegt sind. Störungen in einem solchen System können in weniger als 100 s sicher erkannt werden, allerdings führen sog. Fading-Löcher zu unnötigen Störungsmeldungen.EP 0 911 775, for example, is a hazard detection system and a method for radio transmission in such a system known which is bidirectional and its components are designed to save energy. Disorders in one Such systems can be safely recognized in less than 100 s fading holes lead to unnecessary Fault messages.
Für kleine Anlagen sind diese Phänomene fast bedeutungslos. Zum einen gilt für sie eine Vorschrift, die statt 100 s vier Stunden zuläßt. Zum anderen stört es nicht sehr, wenn bei zum Beispiel drei Meldern im System alle drei Jahre eine von selbst vorübergehende Störung, wie sie bei Fading-Löchern auftritt, vorhanden ist. These phenomena are almost meaningless for small plants. On the one hand, one rule applies to them, four instead of 100 s Hours. On the other hand, it doesn't really bother if at Example three detectors in the system one every three years even temporary disruption, as is the case with fading holes occurs, is present.
Aus DE 199 20 128 A1 ist ein tragbares Notrufsystem mit einer satellitengestützten Ortungseinrichtung und einer damit funktionell zusammengeschlossenen, mobilen Telekommunikationseinrichtung bekannt, bei welchem ein zentrales Rechenzentrum zur permanenten interaktiven Verbindung mit den jeweils aktiven Bausteinen unterschiedlicher Zielobjekte eingerichtet ist, wobei die Bausteine jeweils mit einem eine gegenseitige Datenübertagung ermöglichenden Kommunikationsmodul versehen sind, um eine mittelbare Verbindung zwischen einem dem Zielobjekt zugeordneten Baustein mit dem Rechenzentrum unter Einbeziehung eines weiteren Bausteins eines anderen Zielobjekts als Host-Funktion herzustellen.DE 199 20 128 A1 describes a portable emergency call system with a satellite-based tracking device and therefore functional federated, mobile telecommunication facility known in which a central data center for permanent interactive connection with the currently active Blocks of different target objects is set up, the blocks each having a mutual data transfer enabling communication module are an indirect link between a target object associated module with the data center including another building block of another target object as a host function.
Eine Teillösung wird erzielt durch eine Steigerung der Empfindlichkeit des Empfängers. Damit sinkt die Störungswahrscheinlichkeit ab, verschwindet aber nie ganz. Somit verbleibt gerade bei großen Anlagen immer eine bestimmte Störungswahrscheinlichkeit.A partial solution is achieved by increasing the sensitivity Recipient. This reduces the likelihood of interference but never disappears completely. That leaves In large systems in particular, there is always a certain probability of failure.
Eine weitere Lösung des Problems besteht darin, die Empfangsstationen zu verdoppeln oder zu verdreifachen. Diese, als Empfänger- oder Raumdiversity bezeichnete Variante ist ohne Zweifel wirkungsvoll. Sie zieht jedoch einen erheblichen Aufwand nach sich und kommt deshalb nur in Frage, wenn die Geräte- und Montagekosten von untergeordneter Bedeutung sind.Another solution to the problem is the receiving stations to double or triple. This, as Variant designated receiver or room diversity is without Doubt effective. However, it takes a lot of effort and therefore only comes into question if the device and assembly costs are of minor importance.
Aus DE 195 39 312 A1 ist ein Verfahren zur Erhöhung der Übertragungssicherheit bei Funkalarmanlagen bekannt, welches vorsieht, daß in fest vorgegebenen Zeitabständen spezielle Datentelegramme als Statusmeldung von Außeneinheiten an Zentraleinheiten gesendet werden sowie daß ein Mehrwegeempfang durch eine räumlich versetzte Positionierung der Antennen einer Einheit beseitigt wird.DE 195 39 312 A1 describes a method for increasing transmission security known for radio alarm systems, which provides that special data telegrams at predetermined intervals as status message from outdoor units to central units be sent as well as that a multipath reception by a spatially offset positioning of the antennas Unity is eliminated.
Es ist daher die Aufgabe der Erfindung, ein Verfahren zur Funkübertragung in Gefahrenmeldesystemen anzugeben, welches kostengünstig arbeitet und dennoch die Störungsquote wegen des Auftretens von Fading-Löchern reduziert.It is therefore the object of the invention to provide a method for Radio transmission in hazard detection systems indicate which works inexpensively and still because of the failure rate the occurrence of fading holes is reduced.
Die Aufgabe wird erfindungsgemäß gelöst durch ein Verfahren
mit den Merkmalen des Anspruchs 1.The object is achieved according to the invention by a method
with the features of
In der Regel beeinträchtigen Fading-Löcher nur die Kommunikation zwischen zwei Sende- und Empfangseinrichtungen. Ist nun die Kommunikation zwischen einer Hauptstation und einer Nebenstation gestört, so sind in der Regel die Kommunikationen zwischen der Hauptstation und anderen Nebenstationen wie auch zwischen einzelnen Nebenstationen untereinander dennoch problemlos möglich. In diesem Fall kann eine Nebenstation daher ihre Daten über eine weitere Nebenstation an die Hauptstation senden.Usually fading holes only affect communication between two transmitting and receiving devices. Is now the communication between a master station and a slave station communications are usually disturbed between the main station and other slave stations as well between individual substations with each other without problems possible. In this case, a slave station can their data to the main station via another slave station send.
Dabei wird ein solches Fading-Loch zwischen einer Hauptstation und einer Nebenstation im Rahmen einer Routineprüfung erkannt, die Nebenstation kann dann über die weitere Nebenstation an die Hauptstation melden, daß diese - die Hauptstation nicht direkt erreichende - Nebenstation nach wie vor funktionsfähig ist und eine Kommunikation über die weitere Nebenstation erfolgt.Such a fading hole is between a main station and a slave station recognized as part of a routine check, the slave station can then via the other slave station report to the main station that this - the main station not directly reaching - slave station still functional is and communication via the other slave station he follows.
Gemäß Anspruch 2 wird eine solche, nicht direkt, aber über
Umwege erreichbare Nebenstation als nicht gestört geführt, so
daß sich die Anzahl der Störungsmeldungen entscheidend reduzieren
läßt.According to
Versuchen die Hauptstation und die nicht erreichbare Nebenstation
in vorgegebenen Zeitabständen wieder, die direkte
Funkübertragung aufzunehmen, so ist gemäß Anspruch 3 in vorteilhafter
Weise sichergestellt, daß erneut auftretende Fading-Löcher
dann flexible überwunden werden können.Try the main station and the unreachable slave station
at predetermined intervals again, the direct one
To record radio transmission, it is advantageous according to
Nach Anspruch 4 sendet die Nebenstation ihre Daten so lange über die weitere Nebenstation an die Hauptstation, so lange die direkte Verbindung zur Hauptstation gestört ist. Dadurch läßt sich ein solcher Umweg nicht nur einmalig, sondern ständig zur Kommunikation zwischen Haupt- und Nebenstation verwenden.According to claim 4, the slave station sends its data for so long over the further secondary station to the main station, as long the direct connection to the main station is disturbed. Thereby such a detour can not only be done once, but continuously use for communication between main and secondary station.
Bei einer gestörten Übertragung zwischen Haupt- und Nebenstation erhält die Nebenstation bei einer Integritäts-Überprüfung kein Quittungssignal. Sollte die Hauptstation das Quittungssignal aber dennoch ausgesendet haben, ist in der Hauptstation der Fehler nicht erkannt worden. Daher ist gemäß Anspruch 5 in vorteilhafter Weise vorgesehen, dass die Nebenstation in diesem Fall zu einem festgesetzten Zeitpunkt an die Hauptstation eine Meldung sendet, dass die Integritäts-Überprüfung fehlerhaft war, wonach die Hauptstation die Umleitung über die weitere Nebenstation auslöst.In the event of a faulty transmission between the main and secondary station receives the slave station during an integrity check no acknowledgment signal. Should the main station do that Having sent out the acknowledgment signal is in the Main station of the error was not recognized. Therefore, according to Claim 5 provided in an advantageous manner that the secondary station in this case at a specified time the main station sends a message that the integrity check was faulty, according to which the main station redirection triggers via the other slave station.
Sollte die Kommunikation zwischen der Haupt- und der Nebenstation nicht über einen Umweg über eine weitere Nebenstation erreicht werden können, so ist gemäß Anspruch 6 in vorteilhafter Weise vorgesehen, daß die Sende- und/oder Empfangsantennen der Haupt- und/oder der nicht erreichbaren Nebenstation beeinflußt werden, da sich dadurch die Ausbreitungsverhältnisse zwischen Haupt- und nicht erreichbarer Nebenstation verändern und somit ein Fading-Loch überwunden werden kann. Vor allem in Gebäude, wo es keine Sichtverbindungen zwischen Haupt- und Nebenstation gibt, gewinnen Reflexionen einen entscheidenden Einfluß. Diese immer mehrfach auftretenden Reflexionen führen dazu, daß sich deren Signale am Ort der Empfangsantenne so interferieren, daß sich diese auslöschen. Ändern sich nun am Sender oder am Empfänger die Phasenverhältnisse, so ändern sich die Ausbreitungswege, d.h. die Länge der einzelnen Umwege durch Reflexionen. Daraus resultieren dann andere Empfangspegel.Should the communication between the main and the slave station not via a detour via another secondary station can be achieved, it is advantageous according to claim 6 Way provided that the transmitting and / or receiving antennas the main and / or the unreachable slave station be influenced, as this affects the spreading conditions between main and unreachable secondary station change and thus a fading hole can be overcome. Especially in buildings where there is no line of sight between Main and secondary station there, reflections gain a decisive one Influence. These reflections, which always appear repeatedly cause their signals to be at the location of the receiving antenna so interfere that they cancel each other out. To change the phase relationships on the transmitter or receiver this is how the paths of propagation change, i.e. the length of the individual detours through reflections. Result from it then other reception levels.
In der vorteilhaften Ausgestaltung des Verfahrens nach Anspruch 7 wird dazu die Richtcharakteristik von mindestens einer der Antennen verändert. In the advantageous embodiment of the method according to claim 7 is the directional characteristic of at least one the antennas changed.
Dies kann in einfacher Weise durch Zu- oder Abschalten einzelnen Antennenteile gemäß Anspruch 8, oder durch Variation der Abgleichelemente der Antenne gemäß Anspruch 9 geschehen.This can be done easily by switching individual on or off Antenna parts according to claim 8, or by variation the adjustment elements of the antenna happen according to claim 9.
Ein weiteres einfach zu realisierendes Verfahren gemäß Anspruch 10 besteht darin, daß am Ort des Empfängers und oder des Senders auf eine weitere Antenne umgeschaltet wird, die gemäß Anspruch 11 um mehr als die Hälfte der Wellenlänge von der ursprünglichen Antenne versetzt angeordnet, gemäß Anspruch 12 durch eine andere Ausrichtung als die ursprüngliche Antenne oder gemäß Anspruch 13 durch eine gegenüber der ersten Antenne gedrehte Polarisationsrichtung gekennzeichnet ist.Another easy to implement method according to claim 10 is that at the location of the recipient and or the transmitter is switched to another antenna, which according to claim 11 by more than half the wavelength of the original antenna staggered, according to claim 12 by a different orientation than the original one Antenna or according to claim 13 by a compared to the first Antenna rotated polarization direction marked is.
Besonders gravierend sind die Veränderungen der Ausbreitungsverhältnisse, wenn die weitere Antenne gemäß Anspruch 14 im wesentlichen senkrecht zur ursprünglichen Antenne ausgerichtet ist.The changes in the spreading conditions are particularly serious, if the further antenna according to claim 14 in aligned substantially perpendicular to the original antenna is.
Da eine Frequenzänderung häufig die effektivste Methode ist, eine Verbindung zwischen Haupt- und Nebenstation herzustellen, ist es gemäß Anspruch 15 in vorteilhafter Weise vorgesehen, zunächst die Frequenz der Übertragung zwischen Hauptund Nebenstation zu verändern und erst bei einem Fehlschlagen dieser Methode die Umleitung über eine weitere Nebenstation einzusetzen.Since frequency change is often the most effective method, establish a connection between the main and secondary station, it is advantageously provided according to claim 15, first the frequency of the transmission between main and Change substation and only if it fails this method, the diversion via another secondary station use.
Eine zusätzliche Veränderung der Ausbreitungsverhältnisse zwischen Sender und Empfänger läßt sich gemäß Verfahren gemäß der vorteilhaften Ausgestaltung des Verfahrens nach Anspruch 16 dadurch erzielen, daß die Frequenz der Übertragung geändert wird. Dadurch verändern sich die Wege der Wellen etwas und diese werden anders interferiert. Eine Variation innerhalb des 2 MHz breiten SRD-Bandes (868 MHz bis 870 MHz) reicht aus, um die Phase um mehr als 10° auf dem Übertragungsweg zu schieben. An additional change in the spreading conditions between sender and receiver can be according to the procedure the advantageous embodiment of the method according to claim 16 achieve by changing the frequency of transmission becomes. This changes the ways of the waves a little and these are interfered differently. A variation within the 2 MHz wide SRD band (868 MHz to 870 MHz) is sufficient to move the phase by more than 10 ° to push.
Das Frequenzänderungsverfahren kann gemäß Anspruch 16 zusätzlich zur Umwegübertragung über weitere Nebenstationen, als auch gemäß Anspruch 17 zusätzlich zur Umwegübertragung über weitere Nebenstationen und zusätzlich zur Beeinflussung der Antenne vorgesehen sein.The frequency change method can additionally according to claim 16 for detour transmission via additional substations, as also according to claim 17 in addition to the detour via further substations and in addition to influencing the Antenna may be provided.
Um von vornherein den Einfluß der Frequenzveränderung zu nutzen, ist es ebenfalls sinnvoll, die Frequenz der Übertragung in vorgegebenen Zeitabständen zu verändern gemäß Anspruch 18, ohne vorher auf das Auftreten von Fading-Löchern zu warten.In order to use the influence of the frequency change from the start, it also makes sense to change the frequency of the transmission to change at predetermined time intervals according to claim 18, without waiting for fading holes to appear.
Anhand der in den Figuren dargestellten Ausführungsbeispiele
wird die Erfindung näher erläutert. Dabei zeigt
In Figur 1 ist dargestellt, wie eine Hauptstation M, beispielsweise die Zentrale eines Gefahrenmeldesystems, mit insgesamt vier Nebenstationen S1, S2, S3 und S4 kommuniziert. Die Nebenstationen S1, S2, S3 und S4 können dabei beispielsweise Intrusions- oder Brandmeldesensoren umfassen. Die Hauptstation M und die Nebenstationen S bis S4 weisen dabei jeweils nicht dargestellte Sende- und Empfangseinrichtungen auf, die eine drahtlose Kommunikation zunächst zwischen Hauptstation M und den Nebenstationen S1 bis S4 gewährleisten. Ist nun die Kommunikation zwischen einer Hauptstation M und der Nebenstation S1 gestört, was schematisch in Figur 1 durch eine gepunktete Verbindung zwischen der Nebenstation S1 und der Hauptstation M dargestellt ist, so kommuniziert die Nebenstation S1 ihre Daten an die weitere Nebenstation S2 und diese übermittelt die Daten der Nebenstation S1 dann an die Hauptstation M. Die Hauptstation M kann somit über den Umweg über die weitere Nebenstation S2 mit der nicht erreichbaren Nebenstation S1 kommunizieren und Daten austauschen. Die Nebenstation S1 ist daher in der Hauptstation M nicht als gestört gekennzeichnet. Somit läßt sich die Anzahl der Störungsmeldungen entscheidend reduzieren.FIG. 1 shows how a main station M, for example the center of a hazard detection system, with a total four slave stations S1, S2, S3 and S4 communicated. The secondary stations S1, S2, S3 and S4 can for example Intrusion or fire detection sensors include. The Main station M and the secondary stations S to S4 point transmitting and receiving devices, each not shown on that wireless communication initially between Ensure main station M and the secondary stations S1 to S4. Is the communication between a main station M and the secondary station S1, which is shown schematically in FIG. 1 through a dotted connection between the secondary station S1 and the main station M is shown, the communicates Secondary station S1 to the further secondary station S2 and this then transmits the data of the secondary station S1 to the Main station M. The main station M can thus take the detour via the additional slave station S2 with the unreachable one Slave station S1 communicate and exchange data. The substation S1 is therefore not considered to be disturbed in the main station M. characterized. The number of fault messages can thus be reduced reduce significantly.
In Figur 2 ist dargestellt, daß die Nebenstation S1 neben einer
ersten Antenne 1 eine weitere Antenne 3 aufweist, die im
bezeichneten Beispiel räumlich versetzt und senkrecht zur ersten
Antenne 1 angeordnet ist. Falls nun die Kommunikation
zwischen der ersten Antenne 1 und der Antenne 2 der Hauptstation
M gestört ist, was wiederum durch die gepunktete Verbindung
dargestellt ist, so kann in der Nebenstation S1 auf die
weitere Antenne 3 umgeschaltet werden, die dann die Kommunikation
mit der Antenne 2 der Hauptstation M ermöglicht. Natürlich
kann die weitere Antenne auch an der Hauptstation M
angeordnet sein und durch eine entsprechende Steuerung können
die den jeweiligen Stationen zugeordneten Antennen nicht nur
wechselweise, sondern auch gleichzeitig betrieben werden, wodurch
sich die Ausbreitungsbedingungen noch flexibler verändern
lassen.In Figure 2 it is shown that the secondary station S1 next to a
In Figur 3 ist dargestellt, wie die Nebenstation S1 und die Hauptstation M über eine erste Frequenz F1 nicht miteinander kommunizieren können, was wiederum durch die gepunktete Linie dargestellt ist, während die Kommunikation über eine zweite Frequenz S2 problemlos möglich ist. Ein solcher Frequenzwechsel kann beispielsweise vorgesehen sein, wenn die Kommunikation mit der ersten Frequenz S1 gestört ist, aber es kann auch eine in vorgegebenen Zeitabständen kontinuierliche Frequenzänderung vorgesehen sein.FIG. 3 shows how the secondary station S1 and the Main station M does not communicate with each other via a first frequency F1 can communicate, which in turn by the dotted line is shown while communicating via a second Frequency S2 is easily possible. Such a frequency change can be provided, for example, when the communication is disturbed with the first frequency S1, but it can also a continuous frequency change at predetermined time intervals be provided.
Die Umwegschaltung über eine weitere Nebenstation, die Änderung der Antennen sowie die Frequenzänderung können nun so kombiniert werden, daß, falls einer der Wege nicht funktioniert, automatisch einer der anderen angewendet wird. Bei bidirektionalen Systemen ist es empfehlenswert, zunächst einen Frequenzwechsel vorzunehmen. Nutzt dieser Frequenzwechsel nichts, dann sollte der Umweg über die weitere Nebenstation gewählt werden, um die Ausbreitungsverhältnisse der anderen Kommunikationen zwischen der Hauptstation M und den weiteren Nebenstationen S2, S3 und S4 nicht zu beeinflussen.The detour circuit via another substation, the change the antennas and the frequency change can now do so combined that if one of the ways doesn't work, one of the others is automatically applied. With bidirectional Systems, it is recommended to start with one Frequency change. Use this frequency change nothing, then the detour should go to the other substation be chosen to the spreading ratios of others Communications between the main station M and the others Secondary stations S2, S3 and S4 not to be influenced.
Zusätzlich ist zu beachten, dass die Kommunikation zwischen der Hauptstation und der Nebenstation unterschiedlich gestört sein kann. Empfängt die Hauptstation beispielsweise im Rahmen der Integritäts-Überprüfung zum vorgegebenen Zeitpunkt kein Signal von der Nebenstation, dann versuchen Haupt- und Nebenstation auf einer anderen Frequenz miteinander zu kommunizieren. Gelingt eine Kommunikation über Frequenzwechsel nicht, dann kann die Hauptstation die Kommunikation über die Umleitung über die weitere Nebenstation auslösen.It should also be noted that the communication between the main station and the slave station disturbed differently can be. For example, the main station receives in the frame the integrity check at the given time none Signal from the slave, then try the master and slave communicate with each other on a different frequency. If communication via frequency change is unsuccessful, then the main station can communicate through the diversion trigger via the additional slave station.
Schwieriger ist der Fall, dass die Hauptstation das Signal von der Nebenstation zur Integritäts-Überprüfung empfängt und ihr Quittungssignal aussendet, welches nicht von der Nebenstation empfangen wird. In diesem Fall wird die Nebenstation versuchen, die Hauptstation auf einem anderen Weg zu erreichen, während die Hauptstation davon ausgeht, die Kommunikatio sei ordnungsgemäß abgeschlossen. Für diesen Fall ist ein Extra-Zeitschlitz vorgesehen, in dem eine Nebenstation, die kein Quittungssignal empfangen hat und auch sonst keine Kommunikation mit der Hauptstation aufbauen konnte, ein Telegramm an die Hauptstation übermittelt. Diese empfängt dieses Telegramm im dafür vorgesehenen Zeitschlitz, erfährt somit, dass die Integritäts-Überprüfung nicht abgeschlossen war und kann zusätzliche Maßnahmen einleiten, beispielsweise die Kommunikation über eine weitere Nebenstation.More difficult is the case that the main station receives the signal received from the slave station for integrity checking and sends your acknowledgment signal, which is not from the secondary station Will be received. In this case the substation try to reach the main station in another way while the main station assumes communication be properly completed. In this case there is a Extra time slot is provided in which a slave station that has not received an acknowledgment signal and no other communication could set up a telegram with the main station transmitted to the main station. This receives this Telegram in the time slot provided for this, thus learns that the integrity check was not completed and can initiate additional measures, such as communication via another secondary station.
Claims (18)
jede Nebenstation (S1, S2, S3, S4) versucht, Daten über Funk direkt an die Hauptstation (M) zu senden,
falls die direkte Funkübertragung zwischen der Hauptstation (M) und einer der Nebenstationen (S1) gestört ist, diese -die Hauptstation (M) nicht direkt erreichende - Nebenstation (S1) ihre Daten an eine weitere Nebenstation (S2) sendet
und diese Daten von dieser weiteren Nebenstation (S2) an die Hauptstation (M) übermittelt werden,
wobei die Hauptstation (M) und die Nebenstationen (S1, S2, S3, S4) in vorgegebenen zeitlichen Abständen miteinander im Rahmen einer Integritäts-Überprüfung versuchen, miteinander zu kommunizieren,
dass die die Hauptstation (M) nicht direkt erreichende Nebenstation (S1), für die die Integritäts-Überprüfung nicht funktioniert hat, über die weitere Nebenstation (S2) an die Hauptstation (M) meldet, dass sie funktionsfähig ist und eine Kommunikation über die weitere Nebenstation (S2) zu erfolgen hat.Method for radio transmission in a hazard detection system with a main station (M) and several secondary stations (S1, S2, S3, S4), the main station (M) and the secondary stations (S1, S2, S3, S4) each having a transmitting and receiving device , in which
Each slave station (S1, S2, S3, S4) tries to send data via radio directly to the main station (M),
if the direct radio transmission between the main station (M) and one of the secondary stations (S1) is disturbed, this secondary station (S1), which does not directly reach the main station (M), sends its data to a further secondary station (S2)
and this data is transmitted from this further secondary station (S2) to the main station (M),
the main station (M) and the secondary stations (S1, S2, S3, S4) attempt to communicate with one another at predetermined time intervals as part of an integrity check,
that the secondary station (S1) not directly reaching the main station (M), for which the integrity check did not work, reports to the main station (M) via the further secondary station (S2) that it is functional and communication via the further Secondary station (S2) has to be done.
dadurch gekennzeichnet, dass die Hauptstation (M) die die Hauptstation (M) nicht direkt erreichende Nebenstation (S1) als nicht gestört führt. Method for radio transmission in a hazard detection system according to claim 1,
characterized in that the main station (M) leads the secondary station (S1) not directly reaching the main station (M) as not disturbed.
dadurch gekennzeichnet, dass die Hauptstation (M) und die die Hauptstation (M) nicht direkt erreichende Nebenstation (S1) in vorgegebenen Zeitabständen versuchen, die direkte Funkübertragung wieder aufzunehmen.Method for radio transmission in a hazard detection system according to one of claims 1 or 2,
characterized in that the main station (M) and the secondary station (S1) not directly reaching the main station (M) attempt at predetermined time intervals to resume direct radio transmission.
dadurch gekennzeichnet, dass die die Hauptstation (M) nicht erreichende Nebenstation (S1) ihre Daten solange über die weitere Nebenstation (S2) an die Hauptstation (M) sendet, solange die direkte Verbindung zur Hauptstation (M) gestört ist.Method for radio transmission in a hazard detection system according to claim 3,
characterized in that the secondary station (S1) not reaching the main station (M) sends its data to the main station (M) via the further secondary station (S2) as long as the direct connection to the main station (M) is disturbed.
dadurch gekennzeichnet, dass jede Nebenstation (S1, S2, S3, S4) zu einem vorgegebenen Zeitpunkt ein Integritäts-Überprüfungstelegramm an die Hauptstation (M) sendet und eine vorgegebene Zeit auf den Empfang eines Quittungssignals von der Hauptstation (M) wartet,
dass im Falle eines Nichtempfangs des Quittungssignals durch die betroffene - die Hauptstation (M) nicht direkt erreichende - Nebenstation (S1) zu einem späteren festgelegten Zeitpunkt ein Störungstelegramm an die Hauptstation (M) gesendet wird,
dass die Hauptstation (M) nach dem Empfang des Störungstelegramms die Kommunikation mit der die Hauptstation (M) nicht direkt erreichende Nebenstation (S1) über die weitere Nebenstation (S2) startet. Method for radio transmission in a hazard detection system according to one of claims 1 to 4,
characterized in that each slave station (S1, S2, S3, S4) sends an integrity check telegram to the main station (M) at a predetermined time and waits for a predetermined time for the receipt of an acknowledgment signal from the main station (M),
that if the acknowledgment signal is not received by the affected secondary station (S1) which does not directly reach the main station (M), a fault telegram is sent to the main station (M) at a later specified time,
that the main station (M) starts receiving communication with the secondary station (S1) not directly reaching the main station (M) via the further secondary station (S2) after receiving the fault telegram.
dadurch gekennzeichnet, dass Sende- und/oder Empfangseigenschaften von Antennen (1,2,3) der Sende- und Empfangseinrichtungen der Hauptstation (M) und/oder der die Hauptstation (M) nicht direkt erreichenden Nebenstation (S1) beeinflusst werden, falls keine Funkübertragung über die weitere Nebenstation (S2) an die Hauptstation (M) erfolgt.Method for radio transmission in a hazard detection system according to one of claims 1 to 5,
characterized in that the transmission and / or reception properties of antennas (1, 2, 3) of the transmission and reception devices of the main station (M) and / or the secondary station (S1) not directly reaching the main station (M) are influenced, if none Radio transmission via the additional secondary station (S2) to the main station (M).
dadurch gekennzeichnet, dass die Richtcharakteristik von mindestens einer der Antennen (1,2,3) verändert wird.Method for radio transmission in a hazard detection system according to claim 6,
characterized in that the directional characteristic of at least one of the antennas (1,2,3) is changed.
dadurch gekennzeichnet, dass die Veränderung der Richtcharakteristik durch Zu- oder Abschalten einzelner Antennenteile (1,2,3) erreicht wird.Method for radio transmission in a hazard detection system according to claim 7,
characterized in that the change in the directional characteristic is achieved by switching individual antenna parts (1, 2, 3) on or off.
dadurch gekennzeichnet, dass die Veränderung der Richtcharakteristik durch Variation der Abgleichelemente der Antenne (1,2,3) geschieht.Method for radio transmission in a hazard detection system according to claim 7,
characterized in that the change in the directional characteristic takes place by varying the adjustment elements of the antenna (1, 2, 3).
dadurch gekennzeichnet, dass am Ort des Empfängers und/oder des Senders auf eine weitere Antenne (3) umgeschaltet wird. Method for radio transmission in a hazard detection system according to claim 6,
characterized in that a switch is made to a further antenna (3) at the location of the receiver and / or the transmitter.
dadurch gekennzeichnet, dass die weitere Antenne (3) räumlich um mehr als die Hälfte der Wellenlänge von der ursprünglichen Antenne (1) versetzt angeordnet wird.Method for radio transmission in a hazard detection system according to claim 10,
characterized in that the further antenna (3) is spatially offset by more than half the wavelength from the original antenna (1).
dadurch gekennzeichnet, dass die weitere Antenne (3) in eine andere Richtung weist als die ursprüngliche Antenne (1).Method for radio transmission in a hazard detection system according to claim 10,
characterized in that the further antenna (3) points in a different direction than the original antenna (1).
dadurch gekennzeichnet, dass die weitere Antenne (3) eine gegenüber der ersten Antenne (1) gedrehte Polarisationsrichtung aufweist.Method for radio transmission in a hazard detection system according to claim 10,
characterized in that the further antenna (3) has a polarization direction rotated with respect to the first antenna (1).
dadurch gekennzeichnet, dass die weitere Antenne (3) im wesentlichen senkrecht zur ursprünglichen Antenne (1) ausgerichtet wird.Method for radio transmission in a hazard detection system according to one of claims 10 to 13,
characterized in that the further antenna (3) is aligned substantially perpendicular to the original antenna (1).
dadurch gekennzeichnet, dass zunächst versucht wird, die Übertragung zwischen der Nebenstation (S1) und der Hauptstation (M) durch Frequenzwechsel über eine vorgegebene Anzahl von Frequenzkanälen herzustellen, bevor die Umleitung über die weitere Nebenstation (S2) eingeleitet wird. Method for radio transmission in a hazard detection system according to one of claims 1 to 5,
characterized in that an attempt is first made to establish the transmission between the secondary station (S1) and the main station (M) by changing the frequency over a predetermined number of frequency channels before the diversion is initiated via the further secondary station (S2).
dadurch gekennzeichnet, dass die Frequenz der Übertragung von einer ersten Frequenz (f1) auf eine zweite Frequenz (f2) geändert wird, falls mit der ersten Frequenz (f1) keine Übertragung über die weitere Nebenstation (S1) erfolgt.Method for radio transmission in a hazard detection system according to one of claims 6 to 14,
characterized in that the frequency of the transmission is changed from a first frequency (f1) to a second frequency (f2) if there is no transmission via the further slave station (S1) with the first frequency (f1).
dadurch gekennzeichnet, dass die Frequenz der Übertragung von einer ersten Frequenz (f1) auf eine zweite Frequenz (f2) geändert wird, falls mit der ersten Frequenz (f1) weder eine Übertragung über die weitere Nebenstation (S1) noch über die Beeinflussung der Antenne (1,2,3) erfolgt.Method for radio transmission in a hazard detection system according to one of claims 6 to 16,
characterized in that the frequency of the transmission is changed from a first frequency (f1) to a second frequency (f2) if, with the first frequency (f1), neither a transmission via the further secondary station (S1) nor via the influence of the antenna ( 1,2,3).
dadurch gekennzeichnet, dass die Frequenz der Übertragung in vorgegebenen Zeitabständen von einer ersten Frequenz (f1) auf eine zweite Frequenz (f2) verändert wird.Method for radio transmission in a hazard detection system according to one of claims 1 to 17,
characterized in that the frequency of the transmission is changed at predetermined time intervals from a first frequency (f1) to a second frequency (f2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10114313 | 2001-03-23 | ||
| DE10114313A DE10114313C2 (en) | 2001-03-23 | 2001-03-23 | Procedure for radio transmission in a hazard detection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1244081A1 true EP1244081A1 (en) | 2002-09-25 |
| EP1244081B1 EP1244081B1 (en) | 2003-12-17 |
Family
ID=7678737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02006120A Expired - Lifetime EP1244081B1 (en) | 2001-03-23 | 2002-03-18 | Method of radio communication in an alarm system |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1244081B1 (en) |
| AT (1) | ATE256906T1 (en) |
| DE (2) | DE10114313C2 (en) |
| ES (1) | ES2213128T3 (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2855298A1 (en) * | 2003-05-19 | 2004-11-26 | Cedom | Wireless alarm system for domestic application, has device that is out of range of wireless coverage zone of central control system and within range of coverage zone of alarm or intrusion detection device |
| FR2855297A1 (en) * | 2003-05-19 | 2004-11-26 | Cedom | Wireless alarm system for use in e.g. building, has control system and intrusion detecting device operating on common frequency and each having reception and transmission units so that control system units exchange messages |
| DE10321204B3 (en) * | 2003-05-12 | 2005-01-13 | Siemens Ag | Method and device for monitoring the function of radio transmission paths in a hazard detection system |
| WO2005071634A2 (en) * | 2004-01-27 | 2005-08-04 | Richard Turner | Method and apparatus for detection and tracking of objects within a defined area |
| EP1630760A1 (en) | 2004-08-11 | 2006-03-01 | Siemens Aktiengesellschaft | Method for radio transmission in an alarm signalling system |
| WO2006072619A2 (en) * | 2005-01-10 | 2006-07-13 | Securite Communications | Surveillance device and installation in particular for domestic property |
| EP1710765A1 (en) * | 2005-04-07 | 2006-10-11 | Siemens Schweiz AG | Radio hazard signalling system |
| EP2015270A1 (en) * | 2007-07-02 | 2009-01-14 | Siemens S.A.S. | Addressing device for smoke detectors |
| WO2010097963A1 (en) * | 2009-02-27 | 2010-09-02 | Panasonic Electric Works Co., Ltd. | Home security surveillance system |
| WO2012021599A1 (en) * | 2010-08-10 | 2012-02-16 | Robert Bosch Gmbh | Method of alarm handling in wireless sensor networks |
| CN112435452A (en) * | 2020-11-16 | 2021-03-02 | 福建科立讯通信有限公司 | Multi-alarm-condition concurrent alarm dispatching method and system based on mobile cellular data network |
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| US7483403B2 (en) | 2002-01-10 | 2009-01-27 | Robert Bosch Gmbh | Protocol for reliable, self-organizing, low-power wireless network for security and building automation systems |
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- 2002-03-18 ES ES02006120T patent/ES2213128T3/en not_active Expired - Lifetime
- 2002-03-18 DE DE50200142T patent/DE50200142D1/en not_active Expired - Lifetime
- 2002-03-18 EP EP02006120A patent/EP1244081B1/en not_active Expired - Lifetime
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| US4792946A (en) * | 1987-04-07 | 1988-12-20 | Spectrum Electronics, Inc. | Wireless local area network for use in neighborhoods |
| EP0811959A1 (en) * | 1996-06-07 | 1997-12-10 | GRUNDIG Aktiengesellschaft | Radio controlled alarm system with substations and safe data transmission |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10321204B3 (en) * | 2003-05-12 | 2005-01-13 | Siemens Ag | Method and device for monitoring the function of radio transmission paths in a hazard detection system |
| FR2855297A1 (en) * | 2003-05-19 | 2004-11-26 | Cedom | Wireless alarm system for use in e.g. building, has control system and intrusion detecting device operating on common frequency and each having reception and transmission units so that control system units exchange messages |
| FR2855298A1 (en) * | 2003-05-19 | 2004-11-26 | Cedom | Wireless alarm system for domestic application, has device that is out of range of wireless coverage zone of central control system and within range of coverage zone of alarm or intrusion detection device |
| US7671718B2 (en) | 2004-01-27 | 2010-03-02 | Turner Richard H | Method and apparatus for detection and tracking of objects within a defined area |
| WO2005071634A2 (en) * | 2004-01-27 | 2005-08-04 | Richard Turner | Method and apparatus for detection and tracking of objects within a defined area |
| CN101027700B (en) * | 2004-01-27 | 2012-03-21 | 理查德·特纳 | Method and apparatus for detection and tracking of objects within a defined area |
| WO2005071634A3 (en) * | 2004-01-27 | 2006-08-17 | Richard Turner | Method and apparatus for detection and tracking of objects within a defined area |
| EP2259240A1 (en) * | 2004-01-27 | 2010-12-08 | Richard Harry Turner | Method and apparatus for detection and tracking of objects within a defined area |
| US7692530B2 (en) | 2004-01-27 | 2010-04-06 | Turner Richard H | Identification and tracking of information stored on radio frequency identification devices |
| EP1630760A1 (en) | 2004-08-11 | 2006-03-01 | Siemens Aktiengesellschaft | Method for radio transmission in an alarm signalling system |
| WO2006072619A2 (en) * | 2005-01-10 | 2006-07-13 | Securite Communications | Surveillance device and installation in particular for domestic property |
| WO2006072619A3 (en) * | 2005-01-10 | 2006-11-02 | Securite Comm | Surveillance device and installation in particular for domestic property |
| FR2880721A1 (en) * | 2005-01-10 | 2006-07-14 | Securite Comm Sa | MONITORING DEVICE AND INSTALLATION, IN PARTICULAR FOR REAL PROPERTY |
| WO2006106037A1 (en) * | 2005-04-07 | 2006-10-12 | Siemens Schweiz Ag | Radio danger warning system |
| EP1710765A1 (en) * | 2005-04-07 | 2006-10-11 | Siemens Schweiz AG | Radio hazard signalling system |
| EP2015270A1 (en) * | 2007-07-02 | 2009-01-14 | Siemens S.A.S. | Addressing device for smoke detectors |
| WO2010097963A1 (en) * | 2009-02-27 | 2010-09-02 | Panasonic Electric Works Co., Ltd. | Home security surveillance system |
| WO2012021599A1 (en) * | 2010-08-10 | 2012-02-16 | Robert Bosch Gmbh | Method of alarm handling in wireless sensor networks |
| US8686849B2 (en) | 2010-08-10 | 2014-04-01 | Robert Bosch Gmbh | Method of alarm handling in wireless sensor networks |
| CN112435452A (en) * | 2020-11-16 | 2021-03-02 | 福建科立讯通信有限公司 | Multi-alarm-condition concurrent alarm dispatching method and system based on mobile cellular data network |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10114313A1 (en) | 2003-05-15 |
| DE50200142D1 (en) | 2004-01-29 |
| EP1244081B1 (en) | 2003-12-17 |
| ATE256906T1 (en) | 2004-01-15 |
| DE10114313C2 (en) | 2003-12-04 |
| ES2213128T3 (en) | 2004-08-16 |
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