EP1510988A2 - Procédé et canal de communication pour la transmission simultanée de plusieurs flux d'informations ainsi que système de signalisation de danger - Google Patents

Procédé et canal de communication pour la transmission simultanée de plusieurs flux d'informations ainsi que système de signalisation de danger Download PDF

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Publication number
EP1510988A2
EP1510988A2 EP04019141A EP04019141A EP1510988A2 EP 1510988 A2 EP1510988 A2 EP 1510988A2 EP 04019141 A EP04019141 A EP 04019141A EP 04019141 A EP04019141 A EP 04019141A EP 1510988 A2 EP1510988 A2 EP 1510988A2
Authority
EP
European Patent Office
Prior art keywords
transmission
circuit means
frequency band
frequency
khz
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
Application number
EP04019141A
Other languages
German (de)
English (en)
Other versions
EP1510988A3 (fr
EP1510988B1 (fr
Inventor
Walter Vollenweider
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 AG
Original Assignee
Siemens Schweiz AG
Siemens AG
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
Priority claimed from EP03018546A external-priority patent/EP1508885A1/fr
Application filed by Siemens Schweiz AG, Siemens AG filed Critical Siemens Schweiz AG
Priority to EP20040019141 priority Critical patent/EP1510988B1/fr
Priority to EP08102958A priority patent/EP1930860A1/fr
Publication of EP1510988A2 publication Critical patent/EP1510988A2/fr
Publication of EP1510988A3 publication Critical patent/EP1510988A3/fr
Application granted granted Critical
Publication of EP1510988B1 publication Critical patent/EP1510988B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G08B25/04—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 a single signalling line, e.g. in a closed loop
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G08B25/08—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 communication transmission lines
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/16—Security signalling or alarm systems, e.g. redundant systems

Definitions

  • the invention is in the field of transmitting a plurality of information streams via a common transmission medium.
  • the transmission capacity is particularly easy to increase if the available bandwidth of the transmission medium by the original transmission system is not complete is exploited. For example, a telephone line between headquarters and Participants a usable bandwidth of some 100 kHz. Analog telephony used but only the range between 300 Hz and 3.4 kHz. The reason is that on the one hand despite this limited frequency range, a sufficiently good voice quality is achieved, and on the other hand the continuing transmission channels between the central stations have lower bandwidth than the specified few 100 kHz. This for phone calls Unnecessary transmission capacity can be used for various additional services be used. For example, in Switzerland a long time ago the high-frequency telephone claim introduced. On a normal telephone line are above the Voice band several broadcast channels in amplitude modulation. With similar Methods are also transmitted additional voice channels or the charge information.
  • the transmission characteristic within the additional frequency range is in many cases not as balanced as one would wish. For example, for certain Frequencies will be a very strong attenuation. To a digital transmission in these difficult frequencies was to be thought of as sufficiently powerful and affordable digital signal processing equipment became available. For example, can the receiver an adaptive digital filter are connected upstream, the frequency response of the Inverse of the frequency response of the line is. The resulting overall frequency response is then reasonably straight, so that the digital data transmission is possible. Such procedures are used for example in ISDN (Integrated Services Digital Network). ISDN is a Standard, which is widely used in telephony today. Also a transmission according to the ISDN standard does not fully occupy the available frequency band. So are the lowest frequencies and in particular the frequency 0 Hz is not used.
  • the invention is now intended to provide a network for the transmission of information which is particularly suitable for the needs of safety technology, in the is known for such transfers of information special requirements consist. So there are norms that require the transmission of safety-related data regardless of the transfer of any other data, so that Security-relevant data is usually routed via separate transmission lines become. But there are also facilities that provide such data over a regular telephone line to lead. However, for safety-relevant data, the frequency range is around 50 kHz used while the phone calls continue in the frequency range between 300 Hz and 3.4 kHz are performed. It should also be remembered that for several years security-related Data may also be transmitted via radio channels, but radio channels naturally not completely separated.
  • the invention relates to a transmission network for a security alarm system, with a individual components of this system connecting electrical line, which for the mutually uninfluenced and independent transmission of at least two streams of information is trained.
  • the transmission network according to the invention is characterized in order to ensure the independence of the transfer of at least two Information streams
  • first circuit means for coupling signals into a first Transmission channel in a first frequency band with a lower limit frequency of at least 1 kHz and second circuit means for coupling signals in a second Transmission channel in a second frequency band with one below the lower limit frequency the first frequency band lying upper limit frequency are provided, wherein the said circuit means have a suitable filter characteristic, and that in first transmission channel information transfer of any kind and in the second transmission channel an information transmission by means of digital transmission technology takes place.
  • the invention is based on the recognition that the required independence of the transmission safety-relevant data from the transmission of other data in a simple manner can be achieved that the transmission of safety-related data in one separate frequency band takes place.
  • the security-relevant data are in the second sub-band, So in the frequency range below, for example, 10 kHz using digital transmission technology transfer.
  • the inventive method differs from all Hitherto known method in that so far in the second subband only analog Techniques are used.
  • a first preferred embodiment of the transmission network according to the invention characterized in that provided for the first transmission channel circuit means are substantially high-pass characteristic, and that for the second Transmission channel circuit means are provided, which are essentially a low-pass characteristic exhibit.
  • a second preferred embodiment of the transmission network according to the invention characterized in that the lower limit frequency of the first frequency band approximately 100 kHz and the upper limit frequency of the second frequency band is about 10 kHz.
  • a third preferred embodiment of the transmission network according to the invention characterized in that said first circuit means are connected in series with the line switched capacitors included.
  • a fourth preferred embodiment of the transmission network according to the invention characterized in that said second circuit means are in series with the line included switched inductors.
  • the invention further relates to a hazard alarm system with a central, arranged distributed Danger detectors and ancillary equipment and with a central office with the distributed Component connecting detector line, which for the mutually uninfluenced and independent transmission of at least two information streams is formed.
  • the inventive alarm system is characterized in that to ensure the independence of the transmission of the at least two information streams Coupling members and first circuit means for separating a first frequency band with a lower limit frequency of at least 1 kHz and second circuit means for Separation of a second frequency band with one below the lower limit frequency of first frequency band lying upper limit frequency are provided, and that in the first Frequency band information transmission of any kind and in the second frequency band one Information transmission with means of digital transmission technology takes place.
  • a first preferred embodiment of the inventive hazard alarm system is characterized in that said second circuit means is connected between the center and the detector line are provided and series inductors connected to the signaling line have, said second circuit means constructively formed as part of the center could be.
  • the two transmission channels shown in FIG. 1 are designed such that a mutually uninfluenced and independent transmission of two information streams can take place.
  • reference numerals 8, 9 designate two security devices of a security system, for example, a hazard detection system.
  • the security devices for example, the Central 8 and a detector 9 of the security system are, are by a detector line 1 connected line connected.
  • the control panel records the signals from the detector via the detector line1 Detector and performs control functions.
  • the Detector line 1 also serve to power the detectors.
  • the transmission channel between the safety devices 8, 9 does not need a line, but can basically by be formed any transmission medium, for example in the case of a radio link between the security devices 8, 9 through a radio channel.
  • the communication between the security devices 8, 9 takes place in the second frequency band FB2 of the transmission network.
  • Such accessories 2, 3 can, for example, cameras for monitoring escape routes (see EP-A-1 046 146) or peripherally distributed loudspeakers of an electroacoustic emergency warning system (see EP-A-1 111 565). Because of the high demands on safety the transmission of safety-relevant delivered by the security devices 8, 9 Information, so far was the information of the accessories 2, 3 not on the detector line 1 transferred. By the separation of the total in the transmission network exploitable frequency range in two non-overlapping sub-frequency bands FB1 and FB2 can now also the information of the accessories 2, 3 on the existing Transmission network, in the present case so via the detector line 1, to be transmitted.
  • These coupling networks comprise first circuit means provided according to the invention for the first frequency band FB1, which essentially have a high-pass characteristic, and second circuit means provided for the second frequency band FB2, which essentially have a low-pass characteristic.
  • the first circuit means are formed for example by simultaneously formed as a transformer transverse coils 4 and 5 longitudinal capacitors for the separation of the information provided for the additional devices 2.3 provided first frequency band FB1 with the lower limit frequency f u, for example, 100 kHz.
  • the second circuit means are formed by longitudinal coils 6 and transverse capacitors 7 for the separation of the intended for the safety-related information second frequency band FB2 with the upper limit frequency f o, for example, 10kHz.
  • Fig. 3 shows a first embodiment of a security system, which also is fully functional upon interruption of the loop.
  • the Detector line 1 is connected to a central station 8, which all necessary circuit means contains sufficient to separate signals in the first frequency range.
  • To the detector line 1 are detectors 9, 10 and accessories 2, 3 with the respective necessary circuit means (see Fig. 2) turned on.
  • the detectors 9, 10 transmit their information in the second Frequency range and the accessories 2, 3 transmit their information in the first Frequency range.
  • the detector line 1 is not interrupted and forms one from the output of the control panel 8 way and back to that returning closed double loop. But it can occur that the detector line 1 is interrupted, for example, at a point 11. Then can the center 8 continue with the detector 9 via the top and with the detector 10 via operate the lower branch of the detector line 1, whereas a direct communication between the additional devices 2, 3 is no longer possible without additional precautions. So that too Accessories 2, 3 can continue to communicate with each other, are between the two branches of the Detection line in the region of their connected to the central 8 ends two coupling capacitors 12 inserted, whereby the two mentioned branches of the reporting line 1 for higher frequencies connected to each other.
  • one of the interruption of the Loop-shaped detector line 1 fully functional security system with additional devices 2, 3
  • the coupling capacitors 12 (FIG. 3) are replaced by a transformer 13, which has higher frequency Tensions from one of the two mentioned branches of the split detection line in coupled to the other.
  • Series capacitors 14 may be provided.
  • one of the interruptions of the Loop-shaped detector line 1 fully functional security system with additional devices 2, 3
  • the coupling capacitors 12 of the embodiment of Fig. 3 are not present.
  • the center 8 does not need all the more in the embodiment of FIG Separation of higher-frequency signals in the first frequency range required second Circuit means included; instead of the longitudinal coils 6 (Fig. 2) is a transformer 15 with four Windings provided which the four longitudinal coils 6 of the embodiment of FIG. 2 replace.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Alarm Systems (AREA)
  • Transmitters (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
EP20040019141 2003-08-18 2004-08-12 Procédé et canal de communication pour la transmission simultanée de plusieurs flux d'informations ainsi que système de signalisation de danger Expired - Lifetime EP1510988B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP20040019141 EP1510988B1 (fr) 2003-08-18 2004-08-12 Procédé et canal de communication pour la transmission simultanée de plusieurs flux d'informations ainsi que système de signalisation de danger
EP08102958A EP1930860A1 (fr) 2003-08-18 2004-08-12 Réseau de transmission pour la transmission de plusieurs flux d'informations et installation d'alerte de danger

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP03018546A EP1508885A1 (fr) 2003-08-18 2003-08-18 Procédé et canal de communication pour la transmission simultanée de plusieurs flux d'informations par un moyen de communication commun, ainsi que système de signalisation de danger
EP03018546 2003-08-18
CH14432003 2003-08-25
CH144303 2003-08-25
EP20040019141 EP1510988B1 (fr) 2003-08-18 2004-08-12 Procédé et canal de communication pour la transmission simultanée de plusieurs flux d'informations ainsi que système de signalisation de danger

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP08102958A Division EP1930860A1 (fr) 2003-08-18 2004-08-12 Réseau de transmission pour la transmission de plusieurs flux d'informations et installation d'alerte de danger

Publications (3)

Publication Number Publication Date
EP1510988A2 true EP1510988A2 (fr) 2005-03-02
EP1510988A3 EP1510988A3 (fr) 2007-08-29
EP1510988B1 EP1510988B1 (fr) 2009-03-11

Family

ID=34108253

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20040019141 Expired - Lifetime EP1510988B1 (fr) 2003-08-18 2004-08-12 Procédé et canal de communication pour la transmission simultanée de plusieurs flux d'informations ainsi que système de signalisation de danger
EP08102958A Withdrawn EP1930860A1 (fr) 2003-08-18 2004-08-12 Réseau de transmission pour la transmission de plusieurs flux d'informations et installation d'alerte de danger

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08102958A Withdrawn EP1930860A1 (fr) 2003-08-18 2004-08-12 Réseau de transmission pour la transmission de plusieurs flux d'informations et installation d'alerte de danger

Country Status (1)

Country Link
EP (2) EP1510988B1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1711033A3 (fr) * 2005-04-05 2009-09-16 Siemens Aktiengesellschaft Installation destinée à l'émission et réception d'informations acoustiques dans un véhicule, en particulier un véhicule ferroviaire destiné au transport de passagers
EP2899708A1 (fr) * 2014-01-28 2015-07-29 Siemens Schweiz AG Combinaison de bus pour système de gestion de danger

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6519325B1 (en) 2000-04-18 2003-02-11 Digital Security Controls Ltd. Control panel with DSL bypass circuit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4511886A (en) * 1983-06-01 1985-04-16 Micron International, Ltd. Electronic security and surveillance system
US4703312A (en) * 1986-08-22 1987-10-27 Audiosone, Inc. Voice-override alarm system
EP0503122B1 (fr) * 1991-03-14 1995-12-13 Siemens Aktiengesellschaft Arrangement pour commuter des lignes primaires en cas de perturbations
DE19523980C1 (de) * 1995-06-30 1997-01-02 Nca Mikroelektronic Gmbh Verfahren zur Überwachung von Objekten über eine Datenfernübertragungsleitung
AU764012B2 (en) 1998-09-09 2003-08-07 Siemens Aktiengesellschaft Fire alarm and fire alarm system
DE59910356D1 (de) 1999-12-23 2004-09-30 Siemens Building Tech Ag Kommunikationssystem für ein Gebäude

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6519325B1 (en) 2000-04-18 2003-02-11 Digital Security Controls Ltd. Control panel with DSL bypass circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1711033A3 (fr) * 2005-04-05 2009-09-16 Siemens Aktiengesellschaft Installation destinée à l'émission et réception d'informations acoustiques dans un véhicule, en particulier un véhicule ferroviaire destiné au transport de passagers
EP2899708A1 (fr) * 2014-01-28 2015-07-29 Siemens Schweiz AG Combinaison de bus pour système de gestion de danger
CN104809852A (zh) * 2014-01-28 2015-07-29 西门子瑞士有限公司 用于危险管理系统的总线的组合
CN104809852B (zh) * 2014-01-28 2018-07-10 西门子瑞士有限公司 用于危险管理系统的总线的组合
US10282336B2 (en) 2014-01-28 2019-05-07 Siemens Schweiz Ag Combination of buses for a hazard management system, hazard management system, and method of operating the hazard management system

Also Published As

Publication number Publication date
EP1510988A3 (fr) 2007-08-29
EP1930860A1 (fr) 2008-06-11
EP1510988B1 (fr) 2009-03-11

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