EP0212106B1 - Méthode de transmission de valeurs de mesure - Google Patents

Méthode de transmission de valeurs de mesure Download PDF

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Publication number
EP0212106B1
EP0212106B1 EP86107772A EP86107772A EP0212106B1 EP 0212106 B1 EP0212106 B1 EP 0212106B1 EP 86107772 A EP86107772 A EP 86107772A EP 86107772 A EP86107772 A EP 86107772A EP 0212106 B1 EP0212106 B1 EP 0212106B1
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EP
European Patent Office
Prior art keywords
signal
monitoring
monitoring points
line
points
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
EP86107772A
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German (de)
English (en)
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EP0212106A1 (fr
Inventor
Dieter Schupp
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.)
Cerberus AG
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Cerberus AG
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Publication date
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Priority to AT86107772T priority Critical patent/ATE51723T1/de
Publication of EP0212106A1 publication Critical patent/EP0212106A1/fr
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Publication of EP0212106B1 publication Critical patent/EP0212106B1/fr
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR 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 the transmission of measured values in a monitoring system for protecting buildings according to the preamble of claim 1 (a method of this type is specified in EP-A 0 093 872).
  • measuring points are distributed in extensive objects and connected to a signal center via a signal line.
  • the measuring point it is becoming increasingly important to know the exact origin of the measured values in order to satisfy the needs of intelligent signal processing, i.e. the measuring point must be identifiable.
  • the object of the invention is to provide a method for transmitting measured values in a transmission system and a device for carrying out the method, which avoids the disadvantages mentioned above, and in particular to create a transmission system which, with little installation effort, reliably identifies the measuring points which Maintaining their synchronization to a defined time grid and the transmission of their measured values to a signaling center enables identical measuring points which are connected in a chain to the signaling center to be used.
  • a further object of the invention is to design the measuring points in such a way that they can be controlled from both sides by the signaling center via signal lines arranged in a loop.
  • the method according to the invention avoids a major disadvantage of the chain indexing method, namely that the measuring points further away from the signaling center receive neither supply voltage nor signal for a long time.
  • the origin of the signals arriving from the measuring points in the signal center i.e. Identification is possible using two methods: firstly by counting the commands sent and secondly by the measuring point address, provided that a cycle with special commands for setting an individual address in the address memory of a measuring point has been used.
  • Identification is possible using two methods: firstly by counting the commands sent and secondly by the measuring point address, provided that a cycle with special commands for setting an individual address in the address memory of a measuring point has been used.
  • the measured values can now be transmitted as described in DE-AS 2,533,382, i.e. the switching elements are actuated with each polling cycle. However, the transmission can also be carried out as in a parallel transmission system, the switching elements remaining closed.
  • Fig. 1 shows the structure of a conventional monitoring system according to the chain advance principle.
  • One or more signal lines L emanate from a signal center Z, to each of which a number of measuring points MS are connected.
  • the measuring points MSm essentially contain, in addition to the measuring sensors and transducers, a signal receiver, a sequence control, a signal generator and a switching element Sm.
  • a timing element begins to run in the measuring point MS1.
  • the switching element S1 closes and applies the line voltage to the second measuring point MS2, where a timer also starts to run again. In this way, all switches of the measuring points MSm of a signal line L close one after the other.
  • This process can be repeated periodically, so that all measuring points MS of a line are queried cyclically. After the line voltage is applied to a measuring point Msm or when the relevant switching element Sm is closed, the measured value of the measuring sensor M can be transmitted to the signal center Z.
  • Storage capacitors located in the measuring points ensure the energy supply to the measuring point during any system-related voltage interruptions.
  • each signal line L consists of a two-wire line to which all measuring points MS of a signal line L are connected in parallel.
  • Each measuring point MS is characterized by a fixed address Am. By sending this characteristic address Am, the signal center Z can call up any measuring point MSm and, for example, cause it to deliver its measured value.
  • the address signals can consist, for example, of a digital pulse sequence, a specific voltage, frequency or tone sequence, or of any combination of these elements.
  • the measuring point MS can be a fire detector, e.g. B. an ionization detector, an optical smoke detector, a temperature detector or a flame detector, or a monitoring device in an intrusion protection system, e.g. a passive infrared detector, an ultrasonic detector or a noise detector, or any measuring point in a transmission system.
  • a fire detector e.g. B. an ionization detector, an optical smoke detector, a temperature detector or a flame detector, or a monitoring device in an intrusion protection system, e.g. a passive infrared detector, an ultrasonic detector or a noise detector, or any measuring point in a transmission system.
  • each measuring point MS there is a directionally symmetrical (bilateral) switching element S which connects the two input / output terminals 1 and 2 to one another.
  • a sensor M, a transducer W, a control unit KE, an address memory AR and a command memory BS are provided in module B.
  • the state of the switching element S is controlled by the control unit KE, which also contains means for signal detection.
  • the measuring points are connected to one another and to the signal center Z via terminals 1 and 3A on the one hand and terminals 2 and 3B on the other hand, as shown in FIG. 4.
  • the measuring points MS can be supplied with current from both sides, i.e. the signal lines can be connected to terminals 1 and 3A as well as to terminals 2 and 3B of the measuring point MS, which simplifies and increases the safety during assembly.
  • the control unit KE also contains a line short-circuit detector for the left and right connection terminal. If a short circuit is detected, opening the switching element S prevents the voltage at the terminal which is not short-circuited from dropping below the necessary operating voltage. This makes it possible to maintain the operation of all measuring points MS up to the line short.
  • the measuring points MS are symmetrical with regard to the connection terminals, i.e. interchangeable.
  • a preferred embodiment of the method according to the invention provides that the signal line L is returned from the last measuring point MS back to the signal center.
  • the measuring point MS can now be monitored from two sides. This, in conjunction with the short-circuit detector mentioned, makes it possible to fully maintain the data traffic from and to the measuring points MS in the event of a line short-circuit or interruption, while simultaneously reporting the line fault. It is of great importance in this connection that the location of the line disturbance can easily be determined by the method according to the invention. This is a particular advantage because it is well known that finding line faults is very time consuming and time consuming.
  • FIG. 4 shows an embodiment of a transmission system according to the invention with measuring points MS which are controlled from the signal center Z. are.
  • all measuring points MSm are distributed over one or more signal lines L.
  • the measuring points MS are constructed in accordance with FIG. 3, that is to say they contain a directionally symmetrical (bilateral) switching element S which can switch through the line signal arriving at one input / output terminal K1 to the other input / output terminal K2 and insert changes into the switched line signal and into the Modules B each have a measuring sensor M, a transducer W, a control unit KE, an address memory AR for storing the individual measuring point address and a command memory BS for storing the commands.
  • the changes inserted into the line signal by the switching element S are referred to as "markings".
  • the marking is noticeable in the line going out from the measuring point MS as a current voltage interruption, which indicates to subsequent measuring points MS that the information coming from the signaling center Z may not be evaluated and may only be used for synchronization purposes.
  • all switching elements S are conductive, so that all measuring points MS can synchronize with the synchronization information contained in the line signal.
  • a reset command before the start of a cycle for querying measured values brings all m measuring points MS into a neutral state, which leads to all switching elements S, controlled by the associated control unit KE, at a defined point in time within the time frame given by the synchronization information, by means of a short time Open a current voltage interruption as a marking in the outgoing line signal, whereby all m - 1 measuring points following the first measuring point MS1 receive a signal with a marking, which they use exclusively for synchronization. Since the measuring points run synchronously, the voltage interruption is always impressed at the same point in time within the defined time grid, which allows the information to be transmitted without interference at the other times.
  • the first measuring point MS1 is the only one to receive a line signal without marking, which means that it is the only one to evaluate the signal, execute the corresponding command, respond, then no commands except the reset command and no longer inserting a mark by switching the switching element S on continuously leaves.
  • the continuous switching on of the switching element S has the consequence that from now on the line signal coming from the signal center Z reaches the subsequent measuring point MS2 without marking, which means that after evaluation it executes the corresponding command, responds, then also only accepts the reset command and the associated one Switching element S switches on continuously. This has the effect that the next but one measuring point MS2 also becomes active because it receives a line signal without marking.
  • the cycle continues until the described process has been carried out in succession at all measuring points MS present in the signal line L. After completion of the cycle, a reset command is sent to all measuring points MS to go into the neutral state and to reinsert their mark by briefly opening the switching element S. A new cycle can then be started.
  • each measuring point MS receives an identification that distinguishes it from the other measuring points.
  • This type of addressing avoids any manipulation at the measuring points themselves and allows both the advantages of the parallel system and those of the derailleur system to be exploited without having their disadvantages.
  • the addresses can be re-entered in the register at any time.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Claims (9)

1. Procédé pour transmettre des valeurs de mesure dans un système de contrôle utilisé pour la protection de bâtiments et comportant des points de mesure (MS), qui contiennent un capteur de mesure (M), un convertisseur de signaux (W) et un élément de coupure (S) commandé par une unité de contrôle (KE), et qui, pour la transmission de signaux, sont raccordés selon un montage itératif, par l'intermédiaire de lignes (L) de transmission de signaux, à un premier couple de bornes (K1) d'un central (Z) de traitement des signaux, dans lequel les signaux sont combinés pour l'obtention de signalisations différenciées de perturbations ou d'alarmes, caractérisé par le fait que les éléments de coupure (S), qui sont présents dans les points de mesure (MS), sont conducteurs lors de la mise en service, ce qui a pour effet que le signal circulant dans la ligne (L) de transmission de signaux parvient à tous les points de mesure (MS) et permet à ces derniers de synchroniser sur l'information de synchronisation contenue dans le signal de ligne, que tous les points de mesure (MS) sont placés dans un état neutre au moyen d'une instruction de remise à l'état initial délivrée par le central (Z) de traitement des signaux, que sous l'effet d'une instruction de commande de l'unité de contrôle (KE), l'élément de coupure (S) associé est ouvert pendant un bref intervalle de temps à un instant déterminé pendant la trame temporelle définie par l'information de synchronisation et que, sous l'effet de cette interruption de la tension, tous les points de mesure (MS) reçoivent, à l'exception du premier, un marquage indiquant que le signal de ligne reçu est utilisé uniquement pour la synchronisation et non pour l'évaluation, et que le premier point de mesure (MS1) évalue seul le signal, exécute l'instruction correspondante, délivre la réponse et ensuite ferme l'élément de coupure (S1) de façon permanente, ce qui a pour effet que le point de mesure (MS2) suivant reçoit un signal de ligne sans marquage et par conséquent évalue pour sa part le signal, exécute l'instruction correspondante, délivre une réponse et ensuite ferme également de façon permanente l'élément de coupure (S2) associé, de sorte que le processus peut se répéter dans les autres points de mesure (MSm) jusqu'à ce que le cycle se termine au niveau du dernier point de mesure (MSm), et qu'un nouveau cycle est déclenché par une impulsion de remise à l'état initial, à l'aide de laquelle tous les points de mesure (MS) sont ramenés à l'état neutre.
2. Procédé suivant la revendication 1, caractérisé par le fait que des mémoires d'adresses (AR), qui sont présentes dans les points de mesure (MS), sont occupées selon une séquence prédéterminée, à partir du central (Z) de traitement des signaux, par des instructions appropriées possédant les adresses des points de mesure (MS).
3. Procédé suivant la revendication 2, caractérisé par le fait que tout d'abord la mémoire d'adresses (AR), qui est située dans le point de mesure (MS) le plus proche du central (Z) de traitement des signaux, est occupée par l'adresse associée au point de mesure (MS).
4. Procédé suivant la revendication 2, caractérisé par le fait que tout d'abord la mémoire d'adresses (AR), qui est située dans le point de mesure (MS) le plus éloigné du central (Z) de traitement des signaux, est occupée par l'adresse associée du point de mesure (MS).
5. Procédé suivant l'une des revendications 1 à 4, caractérisé par le fait que les points de mesure (MS) possèdent une symétrie directionnelle (sont bilatéraux) en rapport avec leur raccordement aux lignes (L) de transmission de signaux.
6. Procédé suivant la revendication 5, caractérisé par le fait que les lignes (L) de transmission de signaux reviennent du dernier point de mesure (MS) à des seconds couples de bornes (K2) du central (Z) de traitement des signaux, et que les points de mesure (MS) peuvent être commandés par le central (Z) de traitement des signaux, aussi bien par l'intermédiaire du couple de bornes (K1) que par l'intermédiaire du couple de bornes (K2).
7. Procédé suivant l'une des revendications 1 à 6, caractérisé par le fait qu'après l'occupation des mémoires d'adresses (AR) de tous les points de mesure (MS) d'une ligne (L) de transmission de signaux, tous les éléments de coupure (S) sont fermés et par conséquent tous les points de mesure (MS) de la ligne (L) de transmission de signaux sont raccordés au parallèle au central (Z) de traitement des signaux.
8. Procédé suivant l'une des revendications 1 à 7, caractérisé par le fait que les unités de contrôle (KE) présentes dans les points de mesure (MS) peuvent identifier un court-circuit des couples de bornes (1, 3A) ou (2, 3B), par l'intermédiaire desquels les points de mesure (MS) sont reliés à la ligne (L) de transmission de signaux.
9. Procédé suivant l'une des revendications 1 à 8, caractérisé par le fait que les points de mesure (MS) contiennent des capteurs de mesure (M) servant à détecter des phénomènes d'incendie ou des produits secondaires dûs à un incendie, à déceler des gaz ou des vapeurs nocives ou à déceler la présence d'intrus dans une pièce à contrôler.
EP86107772A 1985-07-10 1986-06-06 Méthode de transmission de valeurs de mesure Expired - Lifetime EP0212106B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86107772T ATE51723T1 (de) 1985-07-10 1986-06-06 Verfahren zur uebertragung von messwerten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2967/85 1985-07-10
CH2967/85A CH668496A5 (de) 1985-07-10 1985-07-10 Verfahren zur uebertragung von messwerten in einem ueberwachungssystem.

Publications (2)

Publication Number Publication Date
EP0212106A1 EP0212106A1 (fr) 1987-03-04
EP0212106B1 true EP0212106B1 (fr) 1990-04-04

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EP86107772A Expired - Lifetime EP0212106B1 (fr) 1985-07-10 1986-06-06 Méthode de transmission de valeurs de mesure

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EP (1) EP0212106B1 (fr)
AT (1) ATE51723T1 (fr)
BR (1) BR8603217A (fr)
CH (1) CH668496A5 (fr)
DE (1) DE3670164D1 (fr)
NO (1) NO862686L (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19940700C2 (de) * 1999-08-27 2003-05-08 Job Lizenz Gmbh & Co Kg Verfahren und Vorrichtung zur automatischen Zuweisung von Melderadressen bei einer Gefahrenmeldeanlage

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10342044A1 (de) * 2003-09-11 2005-04-07 Robert Bosch Gmbh Sensor, Steuergerät und Verfahren zum Betrieb von an ein Steuergerät angeschlossenen Sensoren
DE102004037227A1 (de) * 2004-07-30 2006-02-16 Sick Maihak Gmbh Verfahren und Vorrichtung zur Adressierung von Teilnehmern eines Bussystems
ITMO20040267A1 (it) * 2004-10-11 2005-01-11 Meta System Spa ''metodo e sistema di indirizzamento automatico di una pluralita' di elementi comunicanti per mezzo di un unico bus.''.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765016A (en) * 1971-05-24 1973-10-09 Oak Electro Netics Corp Security system including means for polling the premises to be protected
FR2214385A5 (fr) * 1973-01-16 1974-08-09 Honeywell Bull Soc Ind
DE3008450C2 (de) * 1980-03-05 1986-09-18 Georg Prof. Dr. 8012 Ottobrunn Färber Sequentielles Übertragungssystem zum adressenlosen Anschließen mehrerer Teilnehmer an eine Zentrale
BE892272A (fr) * 1982-02-25 1982-06-16 Cifco S A Procede de telemesure, telesignalisation et telecommande applicable en particulier a la detection d'incendie et d'intrusion et a l'eclairage
CH664637A5 (de) * 1982-04-28 1988-03-15 Cerberus Ag Verfahren zur uebertragung von messwerten in einem ueberwachungssystem.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19940700C2 (de) * 1999-08-27 2003-05-08 Job Lizenz Gmbh & Co Kg Verfahren und Vorrichtung zur automatischen Zuweisung von Melderadressen bei einer Gefahrenmeldeanlage

Also Published As

Publication number Publication date
CH668496A5 (de) 1988-12-30
EP0212106A1 (fr) 1987-03-04
NO862686L (no) 1987-01-12
DE3670164D1 (de) 1990-05-10
NO862686D0 (no) 1986-07-02
BR8603217A (pt) 1987-02-24
ATE51723T1 (de) 1990-04-15

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