EP1901253A1 - Procédé destiné à la transmission radio dans un système de détection des dangers - Google Patents

Procédé destiné à la transmission radio dans un système de détection des dangers Download PDF

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Publication number
EP1901253A1
EP1901253A1 EP06120818A EP06120818A EP1901253A1 EP 1901253 A1 EP1901253 A1 EP 1901253A1 EP 06120818 A EP06120818 A EP 06120818A EP 06120818 A EP06120818 A EP 06120818A EP 1901253 A1 EP1901253 A1 EP 1901253A1
Authority
EP
European Patent Office
Prior art keywords
subscriber
subscribers
detection system
serving
participants
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.)
Withdrawn
Application number
EP06120818A
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German (de)
English (en)
Inventor
Faouzi Derbel
Karlheinz Schreyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Building Technologies HVAC Products GmbH
Siemens Building Technology Fire and Security Products GmbH and Co OHG
Original Assignee
Siemens Building Technologies HVAC Products GmbH
Siemens Building Technology Fire and Security Products GmbH and Co OHG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Building Technologies HVAC Products GmbH, Siemens Building Technology Fire and Security Products GmbH and Co OHG filed Critical Siemens Building Technologies HVAC Products GmbH
Priority to EP06120818A priority Critical patent/EP1901253A1/fr
Priority to PCT/EP2007/058392 priority patent/WO2008034676A1/fr
Publication of EP1901253A1 publication Critical patent/EP1901253A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/009—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
    • G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
    • G08B19/005—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow combined burglary and fire alarm 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
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/007—Details of data content structure of message packets; data protocols

Definitions

  • the invention relates to a method for radio transmission in a hazard detection system.
  • Radio-based danger detection systems comprise in a radio cell signaling sensors as participants of the danger detection system, which in the case of a detected danger (fire, burglary) transmit a danger message via a radio link to a central office.
  • the transmission can be done directly to a central office (then the danger detection system has only one radio cell) or serving as intermediate stations participants of the danger detection system (so-called "cluster heads").
  • cluster heads At the headquarters, further measures (alerting the fire brigade or the police) can be initiated to eliminate the danger.
  • the alarm sensors comprise a transmitting and receiving device and should be as self-sufficient for use in inadequate locations, that is to be operated with a battery and not by a cable connection to a power grid.
  • the components of the alarm sensor must be designed as energy-efficient as possible, and the components should only be switched on at certain times and not be constantly in operation.
  • the battery life should be greater than five years.
  • other subscribers, such as control panels should be able to communicate with the control center or with intermediate stations via a radio transmission and are therefore designed to save energy as the alarm sensors accordingly.
  • the hazard detection system is to be designed synchronously, since in this case the transmitters and receivers remain switched on only at certain predefined times.
  • the radio cells are often relatively small (about 10 participants).
  • the possibly required connection of the intermediate stations with the main center are realized, for example, via conventional wiring. Due to the resulting large number of radio cells can hardly be spoken by a wireless system.
  • the time available for a radio cell having 30, 50 or 100 subscribers is usually divided into two time domains during radio transmission, wherein a system integrity of the radio cell is checked in a first time range and an exchange of data between the subscribers in a second time range and the intermediate station takes place.
  • System integrity checks are also to be understood to mean system organizational measures in the broader sense, such as the registration and logoff of subscribers, the transfer of new possible routes, the search for new subscribers, the determination and transmission of call quality, etc.
  • the participants communicate directly or via other serving as a stopover participants with the center and it is set over a period extending and cyclically repeating time schedule.
  • Each of the participants, including the serving as a stopover participants a different time slot is assigned within the time period within which the participants send a message integrity.
  • the term integrity message is used here by way of example and can also include system-relevant messages, such as for subscribing to and from subscribers, for transmitting new routes, for determining or transmitting the connection quality.
  • the permanently assigned time slot defines a physical address of the subscribers, which can then be used in the hazard alarm system.
  • the fixed assignment between subscriber and time slot also remains after a reorganization of the cell, such as a change in the routes used for the transmission, received. This ensures that at a higher level the assignment of the subscribers to the time slots remains known and communication with the subscribers by the central station is made possible.
  • the recipients serving as an intermediate station subscribers are turned on in time slots, which is assigned to the subscriber who uses this subscriber as an intermediate station.
  • the power consumption of serving as an intermediate station subscriber can be reduced because the receiver is turned on only for the fixed time slots.
  • the time span available for the transmission is divided into a first part in which the integrity messages are transmitted and into a second part in which a general data exchange takes place.
  • the system integrity is regularly determined and on the other hand, there is always the possibility to transmit data within a cycle.
  • serving as an intermediate station first collects the integrity messages from participants who use this as a stopover, then a group integrity message is determined from these integrity messages and together with the own integrity message to the central office or to another as an intermediate station serving subscriber.
  • a group integrity message is determined from these integrity messages and together with the own integrity message to the central office or to another as an intermediate station serving subscriber.
  • the subscribers or all subscribers are made aware of the respective time slots to which the subscribers send their respective integrity messages. This is known at all times in the danger detection system, when the individual participants send out their integrity messages, which, for example, allows a simple reorganization of the hazard detection system.
  • participant participants transfer its tasks of forwarding system integrity messages or data to the central office or another intermediate station to another of the participants, for example, change the propagation conditions in the danger detection system , so that now a previously used way over several intermediate stations to be replaced by another way through other intermediate stations.
  • change could result, for example, from a "fading" effect that may occur or from installation of additional subscribers allowing for new communication paths with better communication conditions.
  • a particularly simple embodiment of the method results from the lifelong assignment of the time slot to the individual subscriber according to claim 9. This always ensures that receiving participants know the time slot for the transmission of the integrity message of the individual participants.
  • This list can be easily exchanged between the participants in case of reorganization of the danger detection system, so that another participant can take over the tasks of this participant.
  • all participants can use the second part of the time span for the data exchange. This ensures that each participant can transmit a message to the center within the time span, which must be transmitted quickly, for example, in an emergency situation.
  • a hazard detection system 1 is shown schematically, which comprises a central Z and a total of three groups (or "radio cells” or “cluster") C1, C2, C3 of subscribers.
  • the first group C1 in this case has a total of six participants 15, 16, 17, 18, 19, 20, and serving as an intermediate station 7,
  • the second group C2 includes another six participants 21, 23, 24, 25, 26, 27 and another serving as a stopover station 22,
  • the third group includes additional six participants 28, 29, 30, 31, 32, 33 and serving as an additional intermediate station 34.
  • serving as intermediate stations participants 7, 22, 34 the same Structure like the other participants in the groups C1, C2 and C3 have. It is therefore not absolutely necessary to use specially trained "routers” or “repeaters” as an intermediate station, but it is also possible, for example, to use alarm sensors as an intermediate station.
  • the transmission now takes place within the danger detection system 1 in such a way that - as shown in FIG. 2 - a time sequence 100 cyclically repeats with a time interval 101 and thereby the time interval 101 (for example according to EN 54 100s) into a first part 102 ("system channel”). ) for the transmission of system integrity messages and a second part 103 ("data channel") for the transmission of data.
  • the first part shown is divided into time slots 110, the first time slot 201 being assigned to a first subscriber, the second time slot 202 to a second subscriber, the third time slot to a third subscriber and so on.
  • the individual participants receive a physical address within the hazard detection system. This assignment and thus the physical address is retained for the lifetime of the participants.
  • FIG. 4b Not shown in FIG. 2 but shown in FIG. 4b is an exemplary embodiment in which the first part 102 and the second part 103 are subdivided in sections to the time period 101, so that data transmission is connected to a transmission of a first number of system integrity messages , then a second number of system health messages, and so on.
  • the respective intermediate station can switch on its receiver for this time slot and switch it off again after receipt of the integrity message.
  • electrical energy can thus be saved and it is possible for the subscribers 7, 22, 34 to be self-sufficient, for example with a battery, over a longer period of time , for example, five years to operate.
  • serving as an intermediate station participants 7, 22, 34 are freely arranged within the danger detection system 1 and it is possible to make the arrangement on the basis of meaningful transmission paths and not solely on the availability of wired electrical energy.
  • the participants of the hazard detection system 1 lists are kept, showing which other participants communicate with the individual participants.
  • the function of the subscriber is listed, that is to say, for example, "subscribers" for subscribers who do not serve as intermediaries, or "clusterheads" for a subscribing subscriber.
  • subordinate subscribers are listed, ie those subscribers who use a serving as a stopover participants for communication.
  • the list of serving as an intermediate station of the second group C2 subscriber 22 the other participants 21, 23, 24, 25, 26, 27 of the second group C2 listed, while the lists of the other two participants 25, 27 at this point no entry have, since these do not act as a stopover.
  • the list may contain an entry about a possibly present subgroup, as in the example the third group C3, whose serving as an intermediate station 34 uses the serving as an intermediate station of the second group participants 22 as another intermediate station on the way to the center Z.
  • This serving as a third party intermediate station 34 is included with all participants 28, 29, 30, 31, 32, 33 of the third group C3 in the list of serving as an intermediate station of the second group C2 participants 22. Also serving as an intermediate station for the communication of serving as an intermediate station of the second group C2 subscriber 22 to the central Z serving subscriber 7 of the first group (ie, the "parent intermediate station") is included in the list.
  • the lists of the other participants 25, 27 of the second group C2 which are likewise shown, apart from the function, only the higher-level subscriber for the route to the central station Z, in the example, the subscriber 22 serving as an intermediate station for the second group C2, are listed.
  • the serving as an intermediate station of the third group participants 34 collects the integrity messages of the other participants 28, 29, 30, 31, 32, 33 of the third group C3, determines a total integrity of the third group C3 and transmits them in its fixed time slot as the intermediate station of the The second group C2 serving subscriber 22.
  • This collects the integrity messages of existing in the second group C2 further participants 21, 23, 24, 25, 26, 27, determines a group integrity of the second group C2 and transmits them together with the group integrity of the third group C3 in the this serving as an intermediate station of the second group participants 22 time slot assigned to the subscriber 7, which serves as an intermediate station in the first group C1.
  • This moves accordingly and therefore transmits information about the overall integrity of the hazard detection system to the center Z in the time slot, which is permanently assigned to him. In this way, the radio traffic can be limited in the danger detection system, since not every single integrity message of all individual participants must first be transmitted to the control center via all possible intermediate stations, but a collection of integrity messages takes place.
  • the hazard detection system 1 is shown after a successful reorganization.
  • a reorganization is necessary, for example, if the propagation conditions in a group C1, C2, C3 have changed, so that now other transmission paths than the originally provided transmission paths with regard to signal attenuation, transmission rate etc. are more favorable.
  • the reorganization has proceeded so that now another participant of the second group C2, namely the participant 25, the role of the intermediate station of the originally serving as a stopover participants 22nd take over.
  • the lists of subscribers shown in FIG. 3 are also adapted.
  • the function of the subscriber 22 originally serving as an intermediate station is now only a subscriber, while the function of the subscriber 25, now serving as an intermediate station, is now an intermediate station or "cluster head".
  • the list of the subordinate subscribers of the second group C2 and the list of the third group C3 as a subgroup is now in the list of the subscriber 25 now serving as an intermediate station.
  • the higher-level subscriber for the former intermediate station 22 is now the new intermediate station 25, and the The higher-level subscriber for the new intermediate station 22 is now the subscriber 7 serving as intermediate station for the first group.
  • the higher-level subscriber has now changed from the original intermediate station 22 to the new intermediate station 25.
  • FIG. 4 a another danger notification system 50, which includes a number of subscribers T 0,..., T 13, is shown for explaining the switching on and off of the receivers.
  • the subscribers T0,..., T13 represent, for example, message sensors, for example for the detection of fires or intrusions, and the subscribers T0,..., T13 are linked for data transmission such that a first subscriber T0 is connected to a second subscriber T1, with a third party T2, with a sixth party T5 and communicates with a twelfth subscriber T11.
  • the sixth subscriber T5 serves as an intermediate station for a seventh subscriber T7 for communication with the first subscriber T0.
  • the twelfth subscriber T11 serves as an intermediate station for the communication of a thirteenth subscriber T12 and a fourteenth subscriber T13 with the first subscriber T0.
  • the third subscriber T2 serves as an intermediate station for a fourth subscriber T3, a fifth subscriber T4 and an eighth subscriber T7 for their communication with the first subscriber T0.
  • the eighth subscriber T7 also serves as an intermediate station for the communication of a ninth subscriber T8, a tenth subscriber T9 and an eleventh subscriber T10 for their communication with the third subscriber T2, and in this way also for communication with the first subscriber T0 ,
  • a table is schematically illustrated for a part of the subscribers T0,..., T13.
  • the first column lists the participants who should receive health messages from the participants listed in the first row of the table.
  • the subscribers T0,..., T13 are all assigned to fixed time slots, for example the second subscriber T1 to the first time slot 201, the third subscriber T2 to the second time slot 202, the fourth subscriber T3 to the third time slot 203, etc.
  • the time slots 201, 202, 203, 205, 206, 207 are for example 1.5s long.
  • the table shows the times at which the receivers of the subscribers arranged in the first column are to be switched on in order to receive the integrity messages of the subscribers assigned to them according to the structure shown in FIG.
  • the first subscriber TO knows, for example, that he / she is from the subscribers communicating with it, ie the second subscriber T1, the third subscriber T2, the sixth subscriber T5 and the twelfth subscriber T11 must receive an integrity message and switches to the correspondingly assigned time slots his receiver, in the example given during the first time slot 201 for the Receiving the integrity message from the second subscriber T1, during the second time slot 202 for receiving the integrity message from the third party T2, during the sixth time slot 206 for communicating with the sixth party T5, etc. After receiving the corresponding integrity message or after expiration of the corresponding Time slot, the receiver can be switched off again.
  • FIG. 4 b shows an example in which the first part 102 of the time span 101, that is to say the part 102 for the transmission of the integrity messages, and the second part 102 of the time span 101 for the data transmission, split the entire time period 101 in such a way that three time slots 201, 202, 203 for the transmission of the integrity messages, then a time slot 204 for data transmission, then another three time slots 205, 206, 207 for integrity messages, then a further time slot 208 are provided for the data transmission, etc.
  • a participant willing to send can notify in his integrity message an indication of a desired data transmission, so that the participating intermediate stations can adjust to this and a priority can be assigned for the transmission of the data.
  • FIG. 5 as an example of a state-of-the-art hazard reporting system 300, it is schematically illustrated how a series of detectors 301 assigned to individual radio cells 302 transmit their data to a "gateway" 303 in the individual radio cell.
  • the "gateways" 303 are connected to a central Z wired.
  • a danger detection system 400 is shown in FIG. 6, which has further detectors 401 in further radio cells 402.
  • the detectors 401 report their data to another "gateway" 403 in the respective further radio cell 402 and the "gateways" 403 transmit the detector data wirelessly to each other and to the center Z.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
EP06120818A 2006-09-18 2006-09-18 Procédé destiné à la transmission radio dans un système de détection des dangers Withdrawn EP1901253A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06120818A EP1901253A1 (fr) 2006-09-18 2006-09-18 Procédé destiné à la transmission radio dans un système de détection des dangers
PCT/EP2007/058392 WO2008034676A1 (fr) 2006-09-18 2007-08-14 Procédé de radiotransmission dans un système avertisseur de danger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06120818A EP1901253A1 (fr) 2006-09-18 2006-09-18 Procédé destiné à la transmission radio dans un système de détection des dangers

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EP1901253A1 true EP1901253A1 (fr) 2008-03-19

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2433440A1 (fr) * 2009-05-22 2012-03-28 Mueller International, LLC Dispositifs, systèmes et procédés de surveillance d'infrastructures
US9934670B2 (en) 2008-10-27 2018-04-03 Mueller International, Llc Infrastructure monitoring system and method
US10180414B2 (en) 2013-03-15 2019-01-15 Mueller International, Llc Systems for measuring properties of water in a water distribution system
CN109741583A (zh) * 2017-12-31 2019-05-10 湖南汇博电子科技股份有限公司 火灾应急设备控制方法、装置、系统及可读存储介质
US11041839B2 (en) 2015-06-05 2021-06-22 Mueller International, Llc Distribution system monitoring
US11725366B2 (en) 2020-07-16 2023-08-15 Mueller International, Llc Remote-operated flushing system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19548650A1 (de) * 1995-12-14 1997-06-19 Funkwerk Dabendorf Gmbh Verfahren zum Betrieb eines mobilen, funkgesteuerten Alarmsystems
EP0911775A2 (fr) * 1997-09-30 1999-04-28 Siemens Aktiengesellschaft Procédé de transmission radio dans un système de signalisation d'alarmes
US20040054921A1 (en) * 2001-10-02 2004-03-18 Land H. Bruce Integrated monitoring and damage assessment system
EP1628273A1 (fr) * 2004-08-16 2006-02-22 Siemens Aktiengesellschaft Procédé pour la mise en service de systèmes de signalisation de danger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19548650A1 (de) * 1995-12-14 1997-06-19 Funkwerk Dabendorf Gmbh Verfahren zum Betrieb eines mobilen, funkgesteuerten Alarmsystems
EP0911775A2 (fr) * 1997-09-30 1999-04-28 Siemens Aktiengesellschaft Procédé de transmission radio dans un système de signalisation d'alarmes
US20040054921A1 (en) * 2001-10-02 2004-03-18 Land H. Bruce Integrated monitoring and damage assessment system
EP1628273A1 (fr) * 2004-08-16 2006-02-22 Siemens Aktiengesellschaft Procédé pour la mise en service de systèmes de signalisation de danger

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9934670B2 (en) 2008-10-27 2018-04-03 Mueller International, Llc Infrastructure monitoring system and method
US10262518B2 (en) 2008-10-27 2019-04-16 Mueller International Llc Method of disseminating monitoring information relating to contamination and corrosion within an infrastructure
EP2433440A1 (fr) * 2009-05-22 2012-03-28 Mueller International, LLC Dispositifs, systèmes et procédés de surveillance d'infrastructures
US9799204B2 (en) 2009-05-22 2017-10-24 Mueller International, Llc Infrastructure monitoring system and method and particularly as related to fire hydrants and water distribution
EP2433440B1 (fr) * 2009-05-22 2018-07-25 Mueller International, LLC Dispositifs, systèmes et procédés de surveillance d'infrastructures
EP3422319A1 (fr) * 2009-05-22 2019-01-02 Mueller International, LLC Dispositifs, systèmes et procédés de surveillance d'infrastructure
US10203315B2 (en) 2013-03-15 2019-02-12 Mueller International Llc Systems for measuring properties of water in a water distribution system
US10180414B2 (en) 2013-03-15 2019-01-15 Mueller International, Llc Systems for measuring properties of water in a water distribution system
US11255835B2 (en) 2013-03-15 2022-02-22 Mueller International, Llc Systems for measuring properties of water in a water distribution system
US11307190B2 (en) 2013-03-15 2022-04-19 Mueller International, Llc Systems for measuring properties of water in a water distribution system
US11041839B2 (en) 2015-06-05 2021-06-22 Mueller International, Llc Distribution system monitoring
CN109741583A (zh) * 2017-12-31 2019-05-10 湖南汇博电子科技股份有限公司 火灾应急设备控制方法、装置、系统及可读存储介质
US11725366B2 (en) 2020-07-16 2023-08-15 Mueller International, Llc Remote-operated flushing system

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