EP0964375A1 - Elektronisches Überwachungsmodul für Schutz- und/oder Überwachungssystem - Google Patents

Elektronisches Überwachungsmodul für Schutz- und/oder Überwachungssystem Download PDF

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Publication number
EP0964375A1
EP0964375A1 EP99420123A EP99420123A EP0964375A1 EP 0964375 A1 EP0964375 A1 EP 0964375A1 EP 99420123 A EP99420123 A EP 99420123A EP 99420123 A EP99420123 A EP 99420123A EP 0964375 A1 EP0964375 A1 EP 0964375A1
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EP
European Patent Office
Prior art keywords
signal
monitoring module
communication
monitoring
transducer
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Withdrawn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
EP99420123A
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English (en)
French (fr)
Inventor
Philippe Lebourg
Alain Duborper
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.)
S2E Management
Original Assignee
S2E Management
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 S2E Management filed Critical S2E Management
Publication of EP0964375A1 publication Critical patent/EP0964375A1/de
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
    • G08B1/08—Systems for signalling characterised solely by the form of transmission of the signal using electric transmission ; transformation of alarm signals to electrical signals from a different medium, e.g. transmission of an electric alarm signal upon detection of an audible alarm signal

Definitions

  • the present invention relates to an electronic module for monitoring, more particularly designed for monitoring vibrations sound and / or mechanical, and suitable for protection and surveillance, for example against fire or for the safety of people, especially in premises.
  • the invention aims to remedy these drawbacks of systems with detectors, and it therefore aims to provide means that allow to put autonomous detectors into communication with a central surveillance, the means proposed being simple and reliable.
  • the invention provides a device, called a module monitoring, which is directly associated with a stand-alone type detector known, and who is able to recognize sound vibrations and / or emitted by this autonomous detector, in the event of detection of a fault or other situation to report.
  • the signals thus received and identified are formatted to be issued, following a protocol of defined transmission, to a remote monitoring center which, naturally, can also be put in communication with other monitoring modules produced and operating according to the same principle, associated with other autonomous detectors.
  • the monitoring module is fixed for example by gluing on the associated autonomous detector.
  • a monitoring module is externally presenting as a small box, can thus equip a stand-alone detector already in place, or a detector newly installed standalone.
  • the proximity of the module of surveillance relative to the autonomous detector allows him to "listen" permanently this autonomous detector, for example by means of a piezoelectric type transducer, monitoring module identifying only the vibrations of the cover of the element to be monitored having reaches a sufficient level, thus carrying out a first filtering mechanical, eliminating mechanical signals surrounding.
  • the electrical signal delivered by the transducer is then shaped by the amplification means, intended to increase the amplitude of the initial signal. This signal should also be processed in a way to eliminate any parasitic "noise" more completely.
  • the means for processing the electrical signal from the transducer include a bandpass filter interposed between the means amplification and means of communication. This filter eliminates noise ambient, and transmits only the frequencies corresponding to those of sound and / or mechanical vibrations expected from the autonomous detector.
  • the power supply means of the module surveillance, object of the invention are advantageously carried out under the form of an autonomous power supply, which makes this module entirely autonomous vis-à-vis the surrounding systems, such as the detector.
  • this autonomous power supply itself includes a device automatic monitoring, intended to transmit to the central monitoring a signal indicating a power supply fault on the module concerned.
  • the invention thus provides a simple and reliable, which makes it possible to transform a set of autonomous detectors into an "interconnected" system, in which all of these detectors are communication with a central monitoring station, which is common to them.
  • the monitoring module is associated with a autonomous detector schematized in 1, which in known manner generates sound and / or mechanical vibrations to signal a detected fault, such as than the presence of smoke or toxic gas.
  • the module surveillance designated as a whole by reference 2, is fixed directly on the autonomous detector 1, for example by gluing.
  • the monitoring module 2 comprises a transducer 3, capable of convert sound and / or mechanical vibrations from the detector autonomous 1, in an electrical signal; it can be a transducer electrodynamics, electrets, piezodynamics, etc.
  • the transducer 3 is connected to the input of a chain electronic amplification, which may include at least one operational amplifier 4, or any other known means electronic amplification, including in particular active components of the like transistors.
  • the output of amplifier 4, or the like, is connected to the input an electronic bandpass filter 5, which has the function of leaving pass a certain frequency band, eliminating the others frequencies.
  • the frequency band thus authorized corresponds to that of sound and / or mechanical vibrations in which the detector autonomous 1 transmits its signals.
  • the calibration of filter 5 on the frequency concerned can either be carried out and locked in production, either adjustable on site, by the installer or the user of the monitoring 2, by means of suitable components such as potentiometer and switches, as symbolized in 6.
  • Filter 5 as well defined allows an elimination of the ambient noise, therefore of the risks of catch taking into account untimely sound and / or mechanical vibrations, do not not corresponding to an emission from the autonomous detector 1 and not being therefore not significant of a defect.
  • the output of the bandpass filter 5 is connected to a communication, which can in particular be an electrical wireless communication, by radio, symbolized in 7, of the modulation type frequency or amplitude modulation, or an electronic "wired" communication 8.
  • the amplified and filtered electrical signal from the bandpass filter 5, is applied to the communication device 7 or 8, which then emits a corresponding signal of predefined form by a channel of wireless transmission 9 or over a transmission line 10, such as current loop, towards a central monitoring station 11, located at distance, which is able to pick up and identify this signal.
  • the output of the filter 5 is also connected to a light indicator 12, in particular in the form of light-emitting diode, provided on the module monitoring 2 to provide a visual indication of operation, the light indicator 12 illuminating in particular upon detection of vibrations and / or when a signal is emitted by the communication 7 or 8.
  • a light indicator 12 in particular in the form of light-emitting diode
  • Monitoring module 2 still has a power supply autonomous electric 13, connected to its various components.
  • the power supply 13 has its own monitoring device automatic 14, which constantly checks whether the energy level electrical power is sufficient to ensure correct operation of module 2.
  • the monitoring device 14 In the event of detection, by the monitoring device 14, an unavailability or insufficiency of the electrical supply 13, a specific signal indicating this fault is emitted, and transmitted to the central surveillance 11.
  • FIG 2 in which the elements common to those of the Figure 1 are designated by the same reference numerals, shows a another embodiment of the monitoring module 2.
  • This includes always a transducer 3 and amplification means 4.
  • the output of these are connected to an input of an electronic microcontroller 15, integrating I / O, active and / or read only memory functions and digital processing.
  • an electronic microcontroller integrating I / O, active and / or read only memory functions and digital processing.
  • MICROCHIP PIC 12C509 a microcontroller commercially available under the name MICROCHIP PIC 12C509, or equivalent.
  • the microcontroller 15 makes it possible to carry out, initially, a learning or recognition phase of the signal delivered by the amplification means 4, during the emission of sound vibrations and / or mechanical by the autonomous detector 1.
  • This phase can be fully automatic, or initialized by the installer or the user, for example by pressing a push button or another interfacing unit accessible to the installer or the user.
  • the sentence learning allows the microcontroller 15 to analyze the amplified signal, received amplification means 4, and to memorize the characteristics essentials of this signal.
  • the microcontroller 15 performs a comparison automatic signal from amplification means 4 with the signal memorized in the learning phase. In case of coincidence of the two signals, defined by a certain correlation rate (the signals not being necessarily completely identical), the microcontroller 15 determines the need to communicate fault or alarm information, transmitted here again via the communication unit 7 or 8 to the remote monitoring center 11.
  • the microcontroller 15 plays here, in a way, the role of the filter 5 of the first embodiment, by eliminating the signals which do not correspond to the characteristic signal of fault, recorded in the learning phase.
  • the microcontroller 15 has still other functions. In particular, it is related to the monitoring device 14 of the power supply 13, to identify any supply fault and trigger the corresponding warning signal.
  • the microcontroller 15 can still be connected to a test push button 16, usable by the installer or user to check that the device is working properly 7 or 8 communication transmitting a signal to the central monitoring 11, this without making use of the autonomous detector 1.
  • a test push button 16 usable by the installer or user to check that the device is working properly 7 or 8 communication transmitting a signal to the central monitoring 11, this without making use of the autonomous detector 1.
  • the light indicator 12 lights up to indicate a correct transmission.
  • While a single monitoring module 2 has been described so far it is clear that a practical installation will generally include a plurality of such monitoring modules, respectively ensuring the connection between a plurality of autonomous detectors 1, placed at various locations, and a central monitoring unit 11 common to all these detectors.
  • a plurality of autonomous detectors 1 are thus set up communication with a single central monitoring station 11, the nature of the information transmitted from the monitoring modules 2 respective to said central 11 must be adapted to the software protocols and physical reception of this plant, and must also allow, by a addressing system, identification of each transmitter module 2, or of the minus the location of the area from which the signal is emitted fault indicator.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
EP99420123A 1998-06-12 1999-05-25 Elektronisches Überwachungsmodul für Schutz- und/oder Überwachungssystem Withdrawn EP0964375A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9807601A FR2779857B1 (fr) 1998-06-12 1998-06-12 Module electronique de surveillance pour systeme de protection et/ou de surveillance contre l'incendie
FR9807601 1998-06-12

Publications (1)

Publication Number Publication Date
EP0964375A1 true EP0964375A1 (de) 1999-12-15

Family

ID=9527469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99420123A Withdrawn EP0964375A1 (de) 1998-06-12 1999-05-25 Elektronisches Überwachungsmodul für Schutz- und/oder Überwachungssystem

Country Status (3)

Country Link
EP (1) EP0964375A1 (de)
CA (1) CA2273426A1 (de)
FR (1) FR2779857B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005069238A1 (en) * 2003-12-22 2005-07-28 Dunstan Walter Runciman Alarm device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044351A (en) * 1974-06-24 1977-08-23 Walter Kidde & Company, Inc. System monitor with innate line security ability
DE3410225A1 (de) * 1984-03-16 1985-09-19 Bezet-Werk Hermann Buchholz Gmbh, 1000 Berlin Vorrichtung zum anzeigen eines akustischen rufzeichens, insbesondere eines telefonrufs
US5012223A (en) * 1990-02-23 1991-04-30 Black & Decker, Inc. Sound activated device and method
GB2268300A (en) * 1992-07-01 1994-01-05 William Francis S Chittleburgh Alarm systems

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044351A (en) * 1974-06-24 1977-08-23 Walter Kidde & Company, Inc. System monitor with innate line security ability
DE3410225A1 (de) * 1984-03-16 1985-09-19 Bezet-Werk Hermann Buchholz Gmbh, 1000 Berlin Vorrichtung zum anzeigen eines akustischen rufzeichens, insbesondere eines telefonrufs
US5012223A (en) * 1990-02-23 1991-04-30 Black & Decker, Inc. Sound activated device and method
GB2268300A (en) * 1992-07-01 1994-01-05 William Francis S Chittleburgh Alarm systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005069238A1 (en) * 2003-12-22 2005-07-28 Dunstan Walter Runciman Alarm device

Also Published As

Publication number Publication date
FR2779857A1 (fr) 1999-12-17
FR2779857B1 (fr) 2001-01-05
CA2273426A1 (fr) 1999-12-12

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