EP0362797B1 - Procédé pour un fonctionnement économique en énergie de détecteurs de danger dans un dispositif de détection de danger - Google Patents

Procédé pour un fonctionnement économique en énergie de détecteurs de danger dans un dispositif de détection de danger Download PDF

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Publication number
EP0362797B1
EP0362797B1 EP89118338A EP89118338A EP0362797B1 EP 0362797 B1 EP0362797 B1 EP 0362797B1 EP 89118338 A EP89118338 A EP 89118338A EP 89118338 A EP89118338 A EP 89118338A EP 0362797 B1 EP0362797 B1 EP 0362797B1
Authority
EP
European Patent Office
Prior art keywords
detector
time
voltage
detectors
microcomputer
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.)
Expired - Lifetime
Application number
EP89118338A
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German (de)
English (en)
Other versions
EP0362797A3 (fr
EP0362797B2 (fr
EP0362797A2 (fr
Inventor
Klaus Kaiser
Peer Dr.-Ing. Thilo
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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.)
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Publication date
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Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0362797A2 publication Critical patent/EP0362797A2/fr
Publication of EP0362797A3 publication Critical patent/EP0362797A3/fr
Application granted granted Critical
Publication of EP0362797B1 publication Critical patent/EP0362797B1/fr
Publication of EP0362797B2 publication Critical patent/EP0362797B2/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
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/005—Alarm systems in which substations are interrogated in succession by a central station with substations connected in series, e.g. cascade

Definitions

  • the invention relates to a method for energy-saving operation of hazard detectors in a hazard detection system according to the preamble of claim 1.
  • Such a hazard detection system is known from DE-PS 25 33 382.
  • the individual detectors are connected in a chain to the detection line.
  • the measured values of the individual detectors are queried cyclically from the control center and sent to the central evaluation device in order to obtain differentiated fault or alarm messages from the analog values to be linked.
  • all detectors are separated from the detection line by a voltage change and then switched on again in a predetermined order in such a way that each detector, after a time delay corresponding to its measured value, by means of a switching transistor arranged in one of the wires of the detection line, additionally the following detectors turns on.
  • the respective detector address is derived from the number of previous increases in line current and the analog measured value from the length of the relevant switching delays.
  • the detectors are operated from their energy stores during this time. After the query, the energy stores are recharged during the so-called rest period with increased line voltage.
  • Hazard detectors increasingly require high-quality sensors and transmission technology. Instead of a collective address, individual addressing is required, as is the case with the hazard alarm system described above.
  • Control commands can also be transmitted from the control center to the individual detectors, which are received by the individual detectors, as is already known from DE-PS 25 33 354.
  • the data received and reported by the individual detectors can also be transmitted in the form of pulse telegrams within certain time windows.
  • CMOS complementary metal-oxide-semiconductor
  • special sensors e.g. to operate the measuring part of an optical scattered light smoke detector in a pulsed manner, as described in EP - 125 485 - AI.
  • the possibility of completely or partially separating the necessary energy e.g. to be supplied via a separate line, which also increases the complexity and the costs of a hazard detection system.
  • the object of the invention is to provide, while avoiding the disadvantages described above, a method for the energy-saving operation of hazard detectors in a hazard detection system, which allows a relatively simple and reliable switching on and off of a microcomputer.
  • switching criteria are used for switching the microcomputer on and off in the respective detector, which are specific to a hazard detection system and already exist, i.e. which are used and designed in a special way for this.
  • each detector receives a certain voltage (an activation voltage) which switches on the microcomputer, but only activates the detector after a predetermined start-up time. Then the data traffic takes place with the head office, i.e. the detector receives and sends (reports) signals. The microcomputer is then switched off by switching to the next detector.
  • the connection voltage is expediently formed by the interrogation voltage.
  • the method according to the invention modifies the known chain modulation in such a way that each detector initially remains inactive for a predetermined start-up time after the application of the interrogation voltage processes its data traffic with the control center in a certain reception time and response time and then switches through to the next detector.
  • the microcomputer of each detector can start up with the specified start-up time. When switching to the next detector, the microcomputer is switched off again. The microcomputer is switched on for an optimally short time and consequently less energy is consumed on average.
  • the start-up time for the microcomputer is obtained in a special way without having to provide a separate start-up time for each detector. All that is required is a first start-up time for the microcomputer of the first detector. After this start-up time, the first detector switches directly to the second detector. In the subsequent reception and transmission time of the first detector, the data communication between the first detector and the control center takes place. This reception and response time is also the start-up time for the microcomputer of the second detector. This process continues until the last detector. This procedure considerably reduces the time required and thus extends the available rest period in which the energy storage devices of the detectors are charged. This allows an increase in the sampling rate and / or an increased energy supply.
  • a plurality of detectors M1 to Mn are connected to a central station Z here, for example, only on one reporting primary line ML.
  • the line current IL flows on the signal line ML and the line voltage UL is present, which can be switched to different values (FIG. 1).
  • the detector M shown in FIG. 2 has, in addition to the switching transistor T switched on in the one line of the detection line ML, the logic logic VL, which represents the heart of the detector and is formed by a microcomputer.
  • the logic logic serves the actual sensor part.
  • the logic logic VL is acted upon by the voltage measuring device MU, which monitors the line voltage UL and outputs switching signals to the logic logic VL in accordance with the line voltage applied.
  • This logic logic causes signals to a control device ST and also signals for switching DS of the switching transistor T so that the following detector is connected to the line voltage.
  • Fig. 3 shows how the individual detectors are switched on in sequence.
  • the line voltage UL is plotted against the time t for the detectors M1 to M3.
  • the rest voltage UR is present on the detection line ML.
  • An interrogation cycle then begins with the separation of the line from the line voltage UL, i.e. the starting voltage US, which is preferably equal to zero, is applied for the starting time ts.
  • the interrogation voltage UA is preferably below the value of the quiescent voltage UR. It is shown for the detector M2 that it only receives the interrogation voltage UA after the DS of the first detector M1 has been switched through. The same applies to detector M3.
  • the data transmission to the detector is generally done by modulating the line voltage UL in the control center, while data transmission to the control center is done by modulating the line current IL in the detector.
  • FIG. 4 shows the profile of the line voltage UL over time t at the input of the detectors M1, M2 and M3.
  • the open circuit voltage UR is applied for the rest time tr.
  • the application of the interrogation voltage UA which is also the switch-on voltage UAN for the microcomputer, is applied to the first detector, which is activated after the start-up time tan and thus receives receive signals E1 from the control center for the receive time te and then response signals A1 in time Ta can report to the headquarters.
  • the detector M1 then switches to detector M2 through (DS).
  • the detector M2 is in turn activated within the start-up time tan and then begins data traffic to the control center.
  • the third detector is then switched through. If the primary signal line ML is queried, the open circuit voltage UR is applied to the signal line. With the respective switching through DS to the next detector, the microcomputer of the detector in question is switched off again, so that the microcomputer only requires energy for an optimally short time.
  • Fig. 5 is a voltage diagram for three detectors, another embodiment of the Invention according to the procedure. All that is required is a single start-up time for all detectors on a line, which advantageously reduces the polling time per detector. This can increase the number of detectors that can be connected and / or speed up the query. In any case, the respective microcomputer is only switched on for a short time. When the interrogation voltage UA is applied, the microcomputer of the first detector starts up. During this time, the detector receives received signals EO from the control center and could then report an AO response to the control center. Neither is possible because the microcomputer is still starting up and is therefore not functional.
  • the functionality is only awakened during the response time ta0, so that the first detector can receive and process the receive signal E1 intended for it only after this start-up time tan1.
  • detector M1 switches through to detector M2 (DS).
  • the start-up time tan2 runs for the second detector M2, which then switches through to the third detector M3 (DS) as soon as it receives the data E2 from the control center.
  • each detector switches through to the next detector immediately upon receipt of the first signals from the control center . This process is repeated in the same way for the other detectors on the line, until after the last detector has been processed, the line is again connected to the rest voltage.
  • the received signals can be carried out in part with the voltage level which corresponds to the quiescent voltage, as a result of which the time required for energy supply is advantageously shortened and the number of detectors that can be connected is increased and / or the query is accelerated.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)

Claims (4)

1. Procédé pour faire fonctionner, d'une manière économisant l'énergie, des avertisseurs de danger dans une installation de signalisation de danger qui fonctionne selon le système de signalisation d'impulsions basé sur le principe de la synchronisation en chaîne, comportant un central (Z) possédant plusieurs lignes primaires de signalisation (ML) à deux conducteurs, auxquelles sont raccordés en chaîne une multiplicité de transmetteurs (Mn), qui sont commandés régulièrement de façon cyclique à partir du central (Z) et dont les valeurs de mesure analogiques respectives sont interrogées, chaque transmetteur (Mn) comportant un dispositif de mesure de transmission (MU), qui contrôle la tension de ligne appliquée (UL), un circuit logique combinatoire (VL) branché en aval et auquel est associé une partie (S) du capteur, un dispositif de commande (St) branché en aval, un accumulateur d'énergie (C) et un transistor d'interconnexion (T), l'unité logique combinatoire (VL) étant formée essentiellement par un micro-ordinateur qui, en fonction de critères déterminés de commutation (UAN, DS) qui sont spécifiques à l'installation de signalisation de danger, est commuté dans un état de repos permettant une économie de courant et est réactivé, un temps nécessaire de démarrage (tan) pour le micro-ordinateur étant garanti,
caractérisé par le fait
que lors de l'interrogation cyclique successive, chaque transmetteur (Mn) reçoit une tension déterminée (tension de raccordement UAN), qui active le micro-ordinateur, mais active le transmetteur considéré, uniquement après une durée de démarrage prédéterminée (tan) du transmetteur considéré, qu'après l'écoulement de la durée de démarrage (tan), il se produit un trafic d'échange de données avec le central (Z), auquel cas pour la réception (E1.E2,...), il est prévu respectivement un temps de réponse déterminé (te) et, pour la réponse (signalisation) (A1,A2,...), il est prévu respectivement un temps de réponse déterminé (te), et qu'ensuite, le micro-ordinateur est débranché lors de l'interconnexion (DS) établie avec le transmetteur immédiatement suivant.
2. Procédé pour faire fonctionner, d'une manière économisant l'énergie, des avertisseurs de danger dans une installation de signalisation de danger qui fonctionne selon le système de signalisation d'impulsions basé sur le principe de la synchronisation en chaîne, comportant un central (Z) possédant plusieurs lignes primaires de signalisation (ML) à deux conducteurs, auxquelles sont raccordés en chaîne une multiplicité de transmetteurs (Mn), qui sont commandés régulièrement de façon cyclique à partir du central (Z) et dont les valeurs de mesure analogiques respectives sont interrogées, chaque transmetteur (Mn) comportant un dispositif de mesure de transmission (MU), qui contrôle la tension de ligne appliquée (UL), un circuit logique combinatoire (VL) branché en aval et auquel est associé une partie (S) du capteur, un dispositif de commande (St) branché en aval, un accumulateur d'énergie (C) et un transistor d'interconnexion (T), l'unité logique combinatoire (VL) étant formée essentiellement par un micro-ordinateur qui, en fonction de critères déterminés de commutation (UAN, DS), qui sont spécifiques à l'installation de signalisation de danger, est commuté dans un état de repos permettant une économie de courant et réactivé, un temps nécessaire de démarrage (tan) pour le micro-ordinateur étant garanti, caractérisé par le fait que lors de l'interrogation cyclique avec application de la tension d'interrogation (UA), le micro-ordinateur du transmetteur respectif est activé, qu'il est prévu un premier temps de réception de réponse (te0 et ta0), qui forme la durée de démarrage (tant) pour le premier transmetteur (M1), qu'après cette durée de démarrage (tan1), le premier transmetteur (M1) reçoit, pendant la durée de réception (te1), des données (E1) à partir du central (Z) et, pendant la durée de réponse (ta1), envoie des données (A1) au central, et, lors de la réception des données de réception, réalise une interconnexion directe (DS) sur le second transmetteur (M2), ce qui a pour effet que le micro-ordinateur du second transmetteur est activé, que le temps de réception et de réponse (te1 et ta1) du premier transmetteur (M1) réduit simultanément la durée de démarrage (tan2) pour le micro-ordinateur du second transmetteur (M2), et que ce processus se répète jusqu'au dernier transmetteur d'une ligne de transmetteurs (ML).
3. Procédé suivant la revendication 1 ou 2, caaractérisé par le fait que la tension de commutation (UAN) est égale à la tension d'interrogation (UA).
4. Procédé suivant la revendication 1 ou 2, caractérisé par le fait que les signaux de réception (E0, E1, ...) possèdent partiellement le niveau de tension, qui correspond à la tension de repos.
EP89118338A 1988-10-06 1989-10-03 Procédé pour un fonctionnement économique en énergie de détecteurs de danger dans un dispositif de détection de danger Expired - Lifetime EP0362797B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3834043 1988-10-06
DE3834043 1988-10-06

Publications (4)

Publication Number Publication Date
EP0362797A2 EP0362797A2 (fr) 1990-04-11
EP0362797A3 EP0362797A3 (fr) 1991-01-16
EP0362797B1 true EP0362797B1 (fr) 1994-12-28
EP0362797B2 EP0362797B2 (fr) 2000-05-17

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ID=6364534

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EP89118338A Expired - Lifetime EP0362797B2 (fr) 1988-10-06 1989-10-03 Procédé pour un fonctionnement économique en énergie de détecteurs de danger dans un dispositif de détection de danger

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EP (1) EP0362797B2 (fr)
AT (1) ATE116464T1 (fr)
DE (1) DE58908831D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4030298A1 (de) * 1990-09-25 1992-03-26 Siemens Ag Gefahrenmeldeanlage
DE102009050692B4 (de) * 2009-10-26 2011-12-01 Phoenix Contact Gmbh & Co. Kg Sicherheits-Kommunikationssystem zur Signalisierung von Systemzuständen
DE102011018630B4 (de) * 2011-04-21 2013-02-07 Phoenix Contact Gmbh & Co. Kg Sicherheits-Kommunikationssystem zur Signalisierung von Systemzuständen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131991B (en) * 1982-11-12 1986-05-29 Robert Philp Telemetry and like signaling systems
DE3313137A1 (de) * 1983-04-12 1984-10-18 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur stoersignalunterdrueckung in optischen rauchmeldern
KR910008738B1 (ko) * 1987-02-20 1991-10-19 닛본 덴기 가부시기가이샤 밧데리 절약 채널 스캔 기능을 갖고 있는 휴대용 무선 송수신기

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EP0362797A3 (fr) 1991-01-16
EP0362797B2 (fr) 2000-05-17
DE58908831D1 (de) 1995-02-09
ATE116464T1 (de) 1995-01-15
EP0362797A2 (fr) 1990-04-11

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