EP1528521A1 - Système pour la surveillance d'une pluralité de zones - Google Patents
Système pour la surveillance d'une pluralité de zones Download PDFInfo
- Publication number
- EP1528521A1 EP1528521A1 EP04292388A EP04292388A EP1528521A1 EP 1528521 A1 EP1528521 A1 EP 1528521A1 EP 04292388 A EP04292388 A EP 04292388A EP 04292388 A EP04292388 A EP 04292388A EP 1528521 A1 EP1528521 A1 EP 1528521A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- detection
- computers
- computer
- detection devices
- zones
- 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
- G08B29/16—Security signalling or alarm systems, e.g. redundant systems
Definitions
- the present invention relates to a system for monitoring of a plurality of zones.
- a system for monitoring of a plurality of zones is particularly suitable for being implemented for centralized detection in a plurality of zones, in particular on board an aircraft, so that, subsequently, the invention will be more specifically described in connection with such an application.
- the aircraft are equipped with a centralized system of monitoring said zones comprising electrical detection devices respectively arranged in said areas, as well as means for processing the detection signals emitted by said devices detecting means and alarm means actuated by said processing means, said processing and alarm means being arranged in the vicinity or in the cockpit, that is, at a remote location said detection devices.
- Detection devices include fire detectors known types, for example pneumatic or thermoresistive (more particularly negative temperature coefficient), arranged in pairs to detection redundancy purposes.
- each detection device comprises only two output channels and, in each pair of detectors, one of said detectors is connected to one of said channels while the other detector is connected to the other channel.
- said output channels are independent of each other and in case of a plurality n of detector pairs in a detection device (n being an integer different from 0), there are n detectors connected in parallel and connected to an output channel and n detectors, also mounted in parallel, but connected to the other exit.
- said processing means are constituted by a set of individual calculators, each of which is associated with a monitored area and receives the information conveyed by the two channels independent of the detection device disposed in said zone. So, said calculator associated with a zone can constantly compare the information it receives from said two independent channels, and in particular when one of the channels carries fire information in the area considered, said associated computer can verify this information by comparing with those transmitted through the other channel and determine whether it should not transmitting an alarm signal to said alarm means.
- each calculator of the processing means comprises two elementary calculators independent (cards) electrically isolated from each other, which in complicates the structure and increases the cost.
- the object of the present invention is to remedy these drawbacks and it relates to a monitoring system architecture allowing to significantly reduce the number of said elementary calculators, while providing the same security of detection.
- each first and second calculator can be connected to several detection devices and that links exist between said first and second calculators, the number of calculators means for processing the detection signals can be reduced.
- each first and second calculator is connected to only one output channel of a sensing device and is isolated from the other channel of out of the latter by said electrically isolated connections, its structure can be simple and not double with internal electrical insulation, as in the prior art. So if the number of zones to monitor is equal to six as in the previous example, the number elementary calculators of the signal processing means of detection can be reduced to four, instead of the previous twelve.
- Said electrically insulating connections may be hertzian, magnetic or other. However, preferably, they are optical and can be materialized by optical fibers and components Optoelectronic. They can be discrete or digital.
- no first (or second) calculator is connected exactly to the same set of detection devices than a second (or first) calculator.
- each first (or second) computer can communicate, through said electrically insulating links, with each two second (or first) calculators.
- the system according to the present invention is intended the detection of fire in non-pressurized areas of an aircraft four-engine, it is advantageous that none of said first and second calculators is connected to more than two associated detection devices each to an engine. Thus, a simple malfunction of the system can not affect more than one engine.
- Figure 1 illustrates an application of the monitoring system according to the invention to fire detection in non-pressurized areas of a plane.
- Figure 2 shows the block diagram of a detection system fire known for the aircraft of Figure 1.
- FIG. 3 shows the block diagram of the detection system in accordance with the present invention for the aircraft of FIG.
- each of these six zones ZM1, ZM2, ZM3, ZM4, ZAP and ZLG is arranged a corresponding fire detection device DZM1, DZM2, DZM3, DZM4, DZAP and DZLG, respectively.
- Each fire detection device DZM1 to DZM4, DZAP and DZLG has a first and a second output channel respectively references ZM1A and ZM1B; ZM2A and ZM2B; ZM3A and ZM3B; ZM4A and ZM4B; ZAPA and ZAPB; and ZLGA and ZLGB.
- each of said fire detection devices is constituted pairs of fire detectors, each having a dA detector and a dB detector jointly monitoring the same location of the area corresponding, for redundancy purposes.
- each zone ZM1 to ZM4 ZAP and ZLG is associated with calculator FDUM1 to FDUM4, FDUAP and FDULG, respectively, connected to the first and second channels of the detection device DZM1 to DZM4, DZAP and corresponding DZLG.
- each of these individual calculators receives the state of each of the detectors dA and dB of the detection device associated and determines, by comparison of said states, whether there exists or no fire in the corresponding area.
- said calculators FDUM1 to FDUM4, FDUAP and FDULG must have two electrically insulated parts, as is suggested in Figure 2 by the dashed score lines.
- said calculators FDUM1 to FDUM4, FDUAP and FDULG After processing the information received on their two channels, said calculators FDUM1 to FDUM4, FDUAP and FDULG transmit the result of their monitoring to a FWS alarm system.
- detectors DZM1 through DZM4, DZAP and DZLG are located in the areas they monitor, calculators FDUM1 to FDUM4, FDUA and FDLG and the FWS alarm system are located in the BA avionics bay, in the vicinity or in the cockpit (see Figure 1). There are therefore L lines of great length (not shown in Figure 1 for the sake of clarity) traveling the aircraft 1 between said detectors and said calculators.
- the FDU calculation unit comprises four computers C1A, C2B, C3A and C4B, for example under the form of electronic cards.
- each of the computers C1 A, C2B, C3A and C4B receiving directly a information of one of the channels of one of the detectors DZM1 to DZM4, DZAP, DZLG can bring this information closer to the one conveyed by the other channel said detector and received by another computer to determine whether or not to send an alarm signal to the alarm system FWS and / or any other local alarm device (not shown), by example that arranged on the ceiling of the cockpit.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
- Fire Alarms (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Emergency Alarm Devices (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
Description
- des dispositifs de détection, dont chacun d'eux est disposé dans l'une desdites zones à surveiller et comporte un premier et un second canal de sortie, chaque dispositif de détection comportant au moins une paire de détecteurs associés à des fins de redondance de détection, un détecteur de chaque paire étant relié au premier canal de sortie correspondant alors que l'autre détecteur de ladite paire est relié au second canal de sortie dudit dispositif de détection ;
- des moyens de traitement des signaux de détection émis par lesdits dispositifs de détection ; et
- des moyens d'alarme actionnés par lesdits moyens de traitement des signaux de détection,
- en ce que lesdits moyens de traitement des signaux de détection
comportent :
- des premiers calculateurs dont chacun d'eux est relié à des premiers canaux de dispositifs de détection, de façon que chaque premier canal soit relié une fois et une seule à un premier calculateur, et
- des seconds calculateurs dont chacun d'eux est relié à des seconds canaux de dispositifs de détection, de façon que chaque second canal soit relié une fois et une seule à un second calculateur ; et
- en ce que des liaisons électriquement isolantes sont prévues entre lesdits premiers et seconds calculateurs, de façon qu'un premier calculateur et un second calculateur reliés à un même dispositif de détection puissent communiquer entre eux.
- deux premiers calculateurs, chacun relié à trois dispositifs de détection ; et
- deux seconds calculateurs, dont chacun d'eux est également relié à trois dispositifs de détection.
- des quatre zones ZM1, ZM2, ZM3 et ZM4 correspondant respectivement aux quatre moteurs M1, M2, M3 et M4 ;
- de la zone ZAP correspondant à l'emplacement de la source de puissance auxiliaire APU ; et
- de la zone ZLG correspondant à la case du train d'atterrissage principal LG.
- tous les détecteurs dA sont reliés en parallèle sur le premier canal ZM1A à ZM4A, ZAPA ou ZLGA correspondant ; et
- tous les détecteurs dB sont reliés en parallèle sur le second canal ZM1B à ZM4B, ZAPB ou ZLGB correspondant.
- le calculateur C 1 A est relié aux premiers canaux ZM1A, ZM4A et ZAPA des détecteurs DZM1, DZM4 et DZAP, respectivement ;
- le calculateur C2B est relié aux seconds canaux ZM1 B, ZM2B et ZAPB des détecteurs DZM 1, DZM2 et DZAP, respectivement ;
- le calculateur C3A est relié aux premiers canaux ZM2A, ZM3A et ZLGA des détecteurs DZM2, DZM3 et DZLG, respectivement ; et
- le calculateur C4B est relié aux seconds canaux ZM3B, ZM4B et ZLGB des détecteurs DZM3, DZM4 et DZLG, respectivement.
- le calculateur C1A peut communiquer avec les calculateurs C2B et C4B ;
- le calculateur C2B peut communiquer avec les calculateurs C1A et C3A ;
- le calculateur C3A peut communiquer avec les calculateurs C2B et C4B ; et
- le calculateur C4B peut communiquer avec les calculateurs C1A et C3A.
Claims (6)
- Système pour la surveillance d'une pluralité de zones (ZM1 à ZM4, ZAP, ZLG), comportant :des dispositifs de détection (DZM1 à DZM4, DZAP, DZLG), dont chacun d'eux est disposé dans l'une desdites zones à surveiller et comporte un premier (ZM1A à ZM4A, ZAPA, ZLGA) et un second (ZM1B à ZM4B, ZAPB, ZLGB) canal de sortie, chaque dispositif de détection comportant au moins une paire de détecteurs (dA, dB) associés à des fins de redondance de détection, un détecteur (dA) de chaque paire étant relié au premier canal de sortie correspondant alors que l'autre détecteur (dB) de ladite paire est relié au second canal de sortie dudit dispositif de détection ;des moyens de traitement (FDU) des signaux de détection émis par lesdits dispositifs de détection ; etdes moyens d'alarme (FWS) actionnés par lesdits moyens de traitement des signaux de détection,en ce que lesdits moyens de traitement des signaux de détection (FDU) comportent :des premiers calculateurs (C1A, C3A) dont chacun d'eux est relié à des premiers canaux de dispositifs de détection, de façon que chaque premier canal soit relié une fois et une seule à un premier calculateur, etdes seconds calculateurs (C2B, C4B) dont chacun d'eux est relié à des seconds canaux de dispositifs de détection, de façon que chaque second canal soit relié une fois et une seule à un second calculateur ; eten ce que des liaisons électriquement isolantes (3) sont prévues entre lesdits premiers (C1A, C2A) et seconds (C2B, C4B) calculateurs, de façon qu'un premier calculateur et un second calculateur reliés à un même dispositif de détection puissent communiquer entre eux.
- Système selon la revendication 1,
caractérisé en ce que lesdites liaisons électriquement isolantes (3) sont optiques. - Système selon l'une des revendications 1 ou 2,
caractérisé en ce qu'aucun premier (ou second) calculateur n'est relié exactement au même ensemble de dispositifs de détection qu'un second (ou premier) calculateur. - Système selon l'une des revendications 1 à 3, pour la surveillance de six zones,
caractérisé en ce qu'il comporte :deux premiers calculateurs (C1A, C3A), chacun relié à trois dispositifs de détection ; etdeux seconds calculateurs (C2B, C4B), dont chacun d'eux est également relié à trois dispositifs de détection. - Système selon les revendications 3 et 4,
caractérisé en ce que chaque premier (ou second) calculateur communique, par l'intermédiaire desdites liaisons électriquement isolantes (3), avec chacun des deux seconds (ou premiers) calculateurs. - Système selon l'une des revendications 1 à 5, destiné à la détection de feu dans des zones non pressurisées d'un aéronef quadrimoteur (1 ),
caractérisé en ce qu'aucun desdits premiers et seconds calculateurs n'est relié à plus de deux dispositifs de détection (DZM1 à DZM4) associés chacun à un moteur.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0312853 | 2003-11-03 | ||
FR0312853A FR2861881B1 (fr) | 2003-11-03 | 2003-11-03 | Systeme pour la surveillance d'une pluralite de zones |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1528521A1 true EP1528521A1 (fr) | 2005-05-04 |
EP1528521B1 EP1528521B1 (fr) | 2009-09-02 |
Family
ID=34400903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04292388A Expired - Lifetime EP1528521B1 (fr) | 2003-11-03 | 2004-10-08 | Système pour la surveillance d'une pluralité de zones |
Country Status (6)
Country | Link |
---|---|
US (1) | US7161499B2 (fr) |
EP (1) | EP1528521B1 (fr) |
AT (1) | ATE441912T1 (fr) |
CA (1) | CA2482497C (fr) |
DE (1) | DE602004022906D1 (fr) |
FR (1) | FR2861881B1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102176269A (zh) * | 2011-02-15 | 2011-09-07 | 中国航空工业集团公司西安飞机设计研究所 | 一种飞机发动机舱火警探测系统告警逻辑设计方法 |
CN105007994B (zh) | 2013-03-06 | 2018-05-15 | 庞巴迪公司 | 在灭火剂管道与飞行器货舱之间的接口 |
CN115503970A (zh) * | 2022-10-11 | 2022-12-23 | 中国航空工业集团公司西安飞机设计研究所 | 一种火警探测系统逻辑判断方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4195286A (en) * | 1978-01-06 | 1980-03-25 | American District Telegraph Company | Alarm system having improved false alarm rate and detection reliability |
US4279395A (en) * | 1978-12-21 | 1981-07-21 | Wabco Westinghouse Compagnia Italiana Segnali S.P.A. | Speed control apparatus for railroad trains |
US4305556A (en) * | 1978-06-10 | 1981-12-15 | Westinghouse Brake & Signal Co. Ltd. | Railway control signal dynamic output interlocking systems |
FR2524674A1 (fr) * | 1982-03-31 | 1983-10-07 | Tokyo Shibaura Electric Co | Dispositif de detection d'anomalies |
US4641243A (en) * | 1983-06-28 | 1987-02-03 | Siemens Aktiengesellschaft | Computer-controlled interlocking system for a railway installation |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6333690B1 (en) * | 1995-03-29 | 2001-12-25 | Medical Tracking Systems | Wide area multipurpose tracking system |
US7034690B2 (en) * | 1999-02-09 | 2006-04-25 | Hill-Rom Services, Inc. | Infant monitoring system and method |
US6972676B1 (en) * | 1999-09-01 | 2005-12-06 | Nettalon Security Systems, Inc. | Method and apparatus for remotely monitoring a site |
US6373389B1 (en) * | 2000-04-21 | 2002-04-16 | Usm Systems, Ltd. | Event driven information system |
US7019644B2 (en) * | 2003-02-04 | 2006-03-28 | Barrie Robert P | Mobile object monitoring system |
-
2003
- 2003-11-03 FR FR0312853A patent/FR2861881B1/fr not_active Expired - Fee Related
-
2004
- 2004-10-08 EP EP04292388A patent/EP1528521B1/fr not_active Expired - Lifetime
- 2004-10-08 DE DE602004022906T patent/DE602004022906D1/de not_active Expired - Lifetime
- 2004-10-08 AT AT04292388T patent/ATE441912T1/de not_active IP Right Cessation
- 2004-10-18 CA CA2482497A patent/CA2482497C/fr not_active Expired - Fee Related
- 2004-11-01 US US10/976,805 patent/US7161499B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4195286A (en) * | 1978-01-06 | 1980-03-25 | American District Telegraph Company | Alarm system having improved false alarm rate and detection reliability |
US4305556A (en) * | 1978-06-10 | 1981-12-15 | Westinghouse Brake & Signal Co. Ltd. | Railway control signal dynamic output interlocking systems |
US4279395A (en) * | 1978-12-21 | 1981-07-21 | Wabco Westinghouse Compagnia Italiana Segnali S.P.A. | Speed control apparatus for railroad trains |
FR2524674A1 (fr) * | 1982-03-31 | 1983-10-07 | Tokyo Shibaura Electric Co | Dispositif de detection d'anomalies |
US4641243A (en) * | 1983-06-28 | 1987-02-03 | Siemens Aktiengesellschaft | Computer-controlled interlocking system for a railway installation |
Also Published As
Publication number | Publication date |
---|---|
EP1528521B1 (fr) | 2009-09-02 |
US7161499B2 (en) | 2007-01-09 |
FR2861881A1 (fr) | 2005-05-06 |
CA2482497C (fr) | 2012-09-25 |
FR2861881B1 (fr) | 2006-01-20 |
ATE441912T1 (de) | 2009-09-15 |
US20050168335A1 (en) | 2005-08-04 |
DE602004022906D1 (de) | 2009-10-15 |
CA2482497A1 (fr) | 2005-05-03 |
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