EP1477951A2 - Verfahren und Einrichtung zur Funktionsüberwachung von Funkübertragungswegen in einem Gefahrenmeldesystem - Google Patents
Verfahren und Einrichtung zur Funktionsüberwachung von Funkübertragungswegen in einem Gefahrenmeldesystem Download PDFInfo
- Publication number
- EP1477951A2 EP1477951A2 EP04101551A EP04101551A EP1477951A2 EP 1477951 A2 EP1477951 A2 EP 1477951A2 EP 04101551 A EP04101551 A EP 04101551A EP 04101551 A EP04101551 A EP 04101551A EP 1477951 A2 EP1477951 A2 EP 1477951A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- level
- time intervals
- participant
- partner
- subscriber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- 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
- G08B29/20—Calibration, including self-calibrating arrangements
- G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components
-
- 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
- G08B29/02—Monitoring continuously signalling or alarm systems
- G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults
-
- 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
- G08B29/12—Checking intermittently signalling or alarm 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
- G08B29/18—Prevention or correction of operating errors
- G08B29/20—Calibration, including self-calibrating arrangements
Definitions
- the invention relates to a method and a device for Function monitoring of radio transmission paths in a hazard detection system with a head office and a plurality of Participants, each having a transmitting and a receiving device exhibit.
- DE 195 39 312 A1 also discloses a method for increasing the transmission security in radio alarm systems is known, which provides that at predetermined intervals special data telegrams as status reports from branch offices to be sent to the central unit, causing problems through multi-path reception due to a spatially offset Positioning of several antennas can be eliminated.
- the EP 1244081 A1 has also been proposed which Impairment caused by so-called fading holes Interference can occur by avoiding that data exchange using different intermediate stations can be done via different radio paths if necessary. Through this so-called routing via intermediate stations but also causes significant radio traffic, if at least every 100 seconds to comply with the standard Data exchange with the headquarters takes place. That also affects negatively on energy consumption. The from the batteries Coming energy is very expensive and does not pollute the environment irrelevant.
- large detector networks are suffocating on their own data traffic for line monitoring.
- the aim of the present invention is therefore to provide a reliable Function monitoring of the transmission paths in one To ensure the danger alarm system, but at the same time the to reduce the required radio traffic and thus the Reduce energy consumption.
- the invention takes advantage of the knowledge that for Function monitoring of the transmission paths not every time Data exchange with the head office must be carried out. Rather, the invention is based on the consideration that a Radio transmission between two points is always guaranteed is when there is sufficient useful field strength at the location of the receiver is available if the level of others continues Services or jammers small compared to your own received useful signal and finally if none Overlays trigger the received signal.
- the first according to the invention then occurs when an error signal exceeds a predetermined Minimum time that was continuously available can still be provided that the participant tries again over a telegram traffic the head office or the specified To reach partner participants.
- the comparison signal level relevant for fault detection can in one embodiment of the invention Represent the mean of the last level measurements; the also includes a statistical evaluation of the reception level on.
- the first time intervals for measuring the noise level are significantly shorter than those in the standard (e.g. 100 seconds) required intervals for fault reporting and preferably on the order of 1 second, during the second intervals for refreshing the comparison signal levels can be much larger than the ge named standard value and for example in the order of 15 minutes.
- Figure 1 shows the influencing variables that a radio transmission can generally prevent.
- a transmitter S emits a signal with a specific transmission power SL
- the receiver E can only receive this signal if it arrives with a sufficient field strength.
- an interferer ST near the receiver E, whose interference level decreases with increasing distance, so must be ensured be that the interference level in the area of the receiver E is lower than the signal level of the transmitter arriving there S.
- FIG. 2 A situation is indicated in FIG. 2 in which a jammer ST is in the vicinity of a subscriber T sender station.
- the transmission power SL of the subscriber T and the interference power STL of the interferer ST are shown schematically on the one hand, the decrease in level being indicated by the attenuation with increasing distance from the respective transmitter by lightening sections.
- transmission is still possible at least in the direction from the transmitter to the control center (one-sided transmission interference). This is the situation that is essentially taken into account in the invention.
- an interferer ST becomes active in the vicinity of a transmitter, that is to say a participant in the hazard reporting system, its interference level can be so high that the participant in question can no longer receive the lower signal levels from the control center or from other partner participants. Conversely, however, it is possible that the subscriber can still send messages to the central office Z or to his partner subscribers with his transmission power.
- an interference level P ST1 arrives that is greater than the signal level P z arriving from the control center.
- the transmission level P T1 is so great that it still arrives at the central location with the size P T2 , while the interference level there is significantly lower than P ST2 .
- subscriber T detects a disturbance by comparing the disturbance level P ST1 with the signal level P z from the control center and sends a fault message to the control center, this call for help can be recognized there, since the disturbance level is already lower than the signal at its location is.
- the interference field strength exceeds the reception threshold at the location of the control center, the control center itself would recognize the fault status.
- each participant has to do with several other partner participants who are acting as intermediate stations.
- This constellation is indicated in FIG.
- the Participant T1 can go directly to head office Z communicate the route R1. But if this route R1 fails, because the radio range is too short or because of a disturbance occurs, so the radio traffic over the participant T2 or take an alternative route R2 or R3 via the participant T3. If the head office detects this by means of appropriate routine messages, that a participant no longer has enough alternative routes for in the event of a fault, this can be considered a fault evaluated and reported.
- the mechanism according to the invention for detecting faults in a subscriber is shown in a block diagram in FIG.
- Two level measuring devices are present in the receiver of the subscriber T1, a noise level measuring device MRP and a signal level measuring device MSP.
- the measurement of the noise level or interference level via the MRP device takes place at short time intervals, for example every second, and the measured value P ST is fed to a comparison device VP.
- This comparison device is also supplied with the memory values from a level memory SPP, which has stored the last measured signal levels of the different partner participants in individual memories.
- level values P z from the control center and P T2 to P T4 from the partner subscribers T2 to T4 are stored.
- the measured interference level P ST1 is compared in the comparison device VP with each of the stored signal levels. As soon as one of the signal levels P z , P T2 etc. is greater than the interference level (including a safety distance), an error signal SF is generated. This is fed to a time evaluation ZB. If the error signal SF is present for a predetermined minimum time, an error message STM is sent to the control center.
- the stored level values of the head office or partner participants in the level memory SPP are at certain time intervals updated by using the signal level measuring device MSP evaluates the incoming routine signals become. This is done at larger intervals, for example every 15 minutes.
- the time relationships in the fault detection according to FIG. 5 are plotted in FIG. 6.
- the measurement of the noise level or interference level P ST takes place at short time intervals TA1, for example every second.
- the signal levels P z , P T2 to P T4 are interrogated at larger time intervals TA2, for example every 15 minutes.
- the fault detection time ie the time that an error signal must be present in order to initiate a fault message, is referred to as TA3. This is, for example, 100 seconds.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Mobile Radio Communication Systems (AREA)
- Transmitters (AREA)
- Alarm Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
Description
- eine Messeinrichtung, um den Störungspegel in vorgegebenen ersten Zeitabständen zu messen,
- eine Speichereinrichtung, um mindestens einen Vergleichs-Signalpegel zu speichern,
- eine Vergleichseinrichtung, um den jeweils gemessenen Störungspegel mit den mindestens einen gespeicherten Vergleichs-Signalpegel zu vergleichen und ein Fehlersignal zu erzeugen, wenn der Störungspegel alle Vergleichs-Signalpegel übersteigt, und
- eine Verzögerungseinrichtung, welche ein über eine vorgegebene Zeitdauer anstehendes Fehlersignal in eine Störungsmeldung umsetzt.
Claims (13)
- Verfahren zur Funktionsüberwachung von Funkübertragungswegen in einem Gefahrenmeldesystem mit einer Zentrale (Z) und einer Mehrzahl von Teilnehmern (T1, T2, T3, T4), welche alle jeweils eine Sende- und eine Empfangseinrichtung aufweisen, gekennzeichnet durch folgende Schritte:a) bei jedem Teilnehmer (T1 bis T4) wird in vorgegebenen kurzen, ersten Zeitabständen (TA1) der im Empfänger ankommende Störungspegel (PST) gemessen und mit mindestens einem gespeicherten Vergleichs-Signalpegel (PZ, PT1....4) verglichen,b) von jedem Teilnehmer werden in vorgegebenen zweiten Zeitabständen (TA2), die ein Vielfaches der ersten Zeitabstände (TA1) betragen, jeweils die von der Zentrale (Z) und/oder mindestens einem als Zwischenstation zur Zentrale dienenden Partner-Teilnehmer (T2, T3, T4) ankommenden Signalpegel gemessen, und die gemessenen Signalpegel oder daraus abgeleitete Werte werden als Vergleichs-Signalpegel (Pz, PT2 bis PT4) gespeichert,c) in dem jeweiligen Teilnehmer (T1, T2, T3, T4) wird ein Fehlersignal (SF) erzeugt, wenn nicht wenigstens ein Vergleichs-Signalpegel signifikant größer als der aktuell gemessene Störungspegel (PST) ist undd) aus dem Fehlersignal (SF) wird eine Störungsmeldung (STM) erzeugt und in Richtung zur Zentrale gesendet, wenn es über eine vorgegebene Mindestzeit (TA3), die ein Mehrfaches des ersten Zeitabstandes (TA1) beträgt, ohne Unterbrechung vorhanden war.
- Verfahren nach Anspruch 1,
dadurch gekennzeichnet, dass ein Teilnehmer (T1) vor Absendung der Störungsmeldung (STM) versucht, über einen Telegrammverkehr die Zentrale (Z) bzw. den vorgegebenen Partner-Teilnehmer (T2, T3, T4) zu erreichen. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass jeder Teilnehmer (T1) im Schritt b) von allen in Funkreichweite befindlichen Partner-Teilnehmern (T2, T3, T4) den ankommenden Signalpegel misst und für jeden Partner-Teilnehmer einen daraus abgeleiteten Vergleichs-Signalpegel (PT2, PT3, PT4) speichert. - Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass die Vergleichs-Signalpegel (Pz, PT2, PT3, PT4) jeweils aus mehreren hintereinander gemessenen Signalpegeln abgeleitet werden. - Verfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass jeder Teilnehmer (T1 bis T4) einschließlich der Zentrale (Z) in den vorgegebenen zweiten Zeitabständen (TA2) jeweils ein Routine-Telegramm aussendet, um allen in Funkreichweite befindlichen Partner-Teilnehmern eine Pegelmessung zu ermöglichen. - Verfahren nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass die ersten Zeitabstände (TA1) gemäß Merkmal a) des Anspruchs 1 kürzer und dass die zweiten Zeitabstände (TA2) gemäß Merkmal b) des Anspruchs 1 um ein Vielfaches länger sind als die in einer Normvorschrift für eine Störungsanzeige vorgegebenen Zeitabstände. - Verfahren nach Anspruch 6,
dadurch gekennzeichnet, dass die ersten Zeitabstände (TA1) in der Größenordnung von 1 Sekunde und die zweiten Zeitabstände (TA2) in der Größenordnung von mehr als 10 Minuten liegen. - Verfahren nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass jeder Teilnehmer (T1, T2, T3, T4) in regelmäßigen Routine-Meldungen an die Zentrale (Z) jeweils eine Liste aller von ihm erreichbaren Partner-Teilnehmer sendet und dass die Zentrale (Z) eine Fehlermeldung erzeugt, wenn ein Teilnehmer nur über einen einzigen Funkweg zur Zentrale verfügt. - Verfahren nach einem der Ansprüche 1 bis 8,
dadurch gekennzeichnet, dass alle Teilnehmer (T1, T2, T3, T4) entsprechend der Anzahl ihrer notwendigen Zwischenstationen für eine Verbindung zu der Zentrale (Z) bestimmten Kommunikationsebenen zugeordnet werden und dass jeder Teilnehmer überprüft, welcher Weg mit den wenigsten Zwischenstationen zur Zentrale führt. - Einrichtung zur Funktionsüberwachung von Funkübertragungswegen in einem Gefahrenmeldesystem mit einer Zentrale (Z) und einer Mehrzahl von Teilnehmern (T1, T2, T3, T4), welche jeweils eine Sende- und eine Empfangseinrichtung aufweisen,
dadurch gekennzeichnet, dass jeder Teilnehmer aufweist:eine Messeinrichtung (MRP), um den Störungspegel (PST) in vorgegebenen ersten Zeitabständen (TA1) zu messen,eine Speichereinrichtung (SPP), um mindestens einen Vergleichs-Signalpegel (Pz, PT2, PT3, PT4) zu speichern,eine Vergleichseinrichtung (VP), um den jeweils gemessenen Störungspegel (PST) mit dem mindestens einen gespeicherten Vergleichs-Signalpegel (PZ, PT1...4) zu vergleichen und ein Fehlersignal (SF) zu erzeugen, wenn der Störungspegel (PST) alle Vergleichs-Signalpegel (Pz, PT2 bis PT4) übersteigt, undeine Verzögerungseinrichtung (ZB), welche ein über eine vorgegebene Zeitdauer (TA3) anstehendes Fehlersignal (SF) in eine Störungsmeldung (ST) umsetzt. - Einrichtung nach Anspruch 10,
dadurch gekennzeichnet, dass jeder Teilnehmer zusätzlich eine Messeinrichtung (MSP) aufweist, um die Signalpegel aller in Funkreichweite befindlichen Partner-Teilnehmer (T2, T3, T4) einschließlich der Zentrale (Z) in vorgegebenen zweiten Zeitabständen (TA2) zu messen und aus den Messwerten Vergleichs-Signalpegel (Pz, PT2 PT3,PT4) abzuleiten. - Einrichtung nach Anspruch 10 oder 11,
dadurch gekennzeichnet, dass jeder Teilnehmer für jeden ihm zugeordneten, in seiner Funkreichweite befindlichen Partner-Teilnehmer (T2, T3, T4) einen Speicher für einen zugeordneten Vergleichs-Signalpegel (Pz, PT2 PT3,PT4) besitzt. - Verfahren nach einem der Ansprüche 10 bis 12,
dadurch gekennzeichnet, dass zumindest ein Teil der Teilnehmer eine Diebstahlsicherung aufweist, welche eine Meldung auslöst, sobald der Teilnehmer von seiner vorgegebenen Position entfernt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10321204A DE10321204B3 (de) | 2003-05-12 | 2003-05-12 | Verfahren und Einrichtung zur Funktionsüberwachung von Funkübertragungswegen in einem Gefahrenmeldesystem |
DE10321204 | 2003-05-12 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1477951A2 true EP1477951A2 (de) | 2004-11-17 |
EP1477951A3 EP1477951A3 (de) | 2006-03-01 |
EP1477951B1 EP1477951B1 (de) | 2006-11-02 |
Family
ID=33016342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04101551A Expired - Lifetime EP1477951B1 (de) | 2003-05-12 | 2004-04-15 | Verfahren und Einrichtung zur Funktionsüberwachung von Funkübertragungswegen in einem Gefahrenmeldesystem |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1477951B1 (de) |
AT (1) | ATE344515T1 (de) |
DE (2) | DE10321204B3 (de) |
DK (1) | DK1477951T3 (de) |
ES (1) | ES2276221T3 (de) |
PT (1) | PT1477951E (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012131191A1 (fr) * | 2011-03-31 | 2012-10-04 | Finsecur | Dispositif de declenchement d'alarme pour un systeme de securite |
WO2012131189A1 (fr) * | 2011-03-31 | 2012-10-04 | Finsécur | Dispositif de déclenchement d' alarme pour un systeme de sécurité et procède d'installation d'un dispositif de déclenchement d' alarme |
FR2973544A1 (fr) * | 2011-03-31 | 2012-10-05 | Finsecur | Dispositif de declenchement d'alarme pour un systeme de securite |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5029334A (en) * | 1989-03-21 | 1991-07-02 | Asea Brown Boveri Ltd. | Process for transferring data packets |
EP0811959A1 (de) * | 1996-06-07 | 1997-12-10 | GRUNDIG Aktiengesellschaft | Funkgesteuerte Gefahrenmeldeanlage mit Unterzentralen und sicherer Datenkommunikation zwischen den einzelnen Komponenten |
DE19904358A1 (de) * | 1999-02-04 | 2000-08-10 | Abb Research Ltd | Verfahren zum Datenaustausch über ein dezentrales Netzwerk |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19539312A1 (de) * | 1995-10-23 | 1997-04-24 | Grundig Emv | Verfahren zur Erhöhung der Übertragungssicherheit bei Funkalarmanlagen |
EP0911775B1 (de) * | 1997-09-30 | 2003-12-10 | Siemens Aktiengesellschaft | Verfahren zur Funkübertragung in einem Gefahrenmeldesystem |
DE19952657A1 (de) * | 1999-11-02 | 2001-05-03 | Andy Barnekow | Anordnung zur Signalübermittlung an und von beweglichen Objekten |
DE10114313C2 (de) * | 2001-03-23 | 2003-12-04 | Siemens Gebaeudesicherheit Gmb | Verfahren zur Funkübertragung in einem Gefahrenmeldesystem |
-
2003
- 2003-05-12 DE DE10321204A patent/DE10321204B3/de not_active Expired - Fee Related
-
2004
- 2004-04-15 PT PT04101551T patent/PT1477951E/pt unknown
- 2004-04-15 DK DK04101551T patent/DK1477951T3/da active
- 2004-04-15 EP EP04101551A patent/EP1477951B1/de not_active Expired - Lifetime
- 2004-04-15 DE DE502004001876T patent/DE502004001876D1/de not_active Expired - Lifetime
- 2004-04-15 AT AT04101551T patent/ATE344515T1/de active
- 2004-04-15 ES ES04101551T patent/ES2276221T3/es not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5029334A (en) * | 1989-03-21 | 1991-07-02 | Asea Brown Boveri Ltd. | Process for transferring data packets |
EP0811959A1 (de) * | 1996-06-07 | 1997-12-10 | GRUNDIG Aktiengesellschaft | Funkgesteuerte Gefahrenmeldeanlage mit Unterzentralen und sicherer Datenkommunikation zwischen den einzelnen Komponenten |
DE19904358A1 (de) * | 1999-02-04 | 2000-08-10 | Abb Research Ltd | Verfahren zum Datenaustausch über ein dezentrales Netzwerk |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012131191A1 (fr) * | 2011-03-31 | 2012-10-04 | Finsecur | Dispositif de declenchement d'alarme pour un systeme de securite |
WO2012131189A1 (fr) * | 2011-03-31 | 2012-10-04 | Finsécur | Dispositif de déclenchement d' alarme pour un systeme de sécurité et procède d'installation d'un dispositif de déclenchement d' alarme |
FR2973546A1 (fr) * | 2011-03-31 | 2012-10-05 | Finsecur | Dispositif de declenchement d'alarme pour un systeme de securite |
FR2973544A1 (fr) * | 2011-03-31 | 2012-10-05 | Finsecur | Dispositif de declenchement d'alarme pour un systeme de securite |
FR2973545A1 (fr) * | 2011-03-31 | 2012-10-05 | Finsecur | Dispositif de declenchement d'alarme pour un systeme de securite et procede d'installation d'un dispositif de declenchement d'alarme |
WO2012131190A3 (fr) * | 2011-03-31 | 2012-12-20 | Finsécur | Dispositif de declenchement d'alarme pour un systeme de securite |
US9467358B2 (en) | 2011-03-31 | 2016-10-11 | Finsecur | Alarm triggering device for a security system |
US9466206B2 (en) | 2011-03-31 | 2016-10-11 | Finsecur | Alarm triggering device for a security system and method for installing an alarm triggering device |
Also Published As
Publication number | Publication date |
---|---|
PT1477951E (pt) | 2007-02-28 |
DE502004001876D1 (de) | 2006-12-14 |
EP1477951A3 (de) | 2006-03-01 |
ATE344515T1 (de) | 2006-11-15 |
DE10321204B3 (de) | 2005-01-13 |
DK1477951T3 (da) | 2007-02-19 |
ES2276221T3 (es) | 2007-06-16 |
EP1477951B1 (de) | 2006-11-02 |
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