EP0032593A2 - Installation d'alarme, de sécurité et de surveillance - Google Patents

Installation d'alarme, de sécurité et de surveillance Download PDF

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Publication number
EP0032593A2
EP0032593A2 EP80108235A EP80108235A EP0032593A2 EP 0032593 A2 EP0032593 A2 EP 0032593A2 EP 80108235 A EP80108235 A EP 80108235A EP 80108235 A EP80108235 A EP 80108235A EP 0032593 A2 EP0032593 A2 EP 0032593A2
Authority
EP
European Patent Office
Prior art keywords
alarm
security
monitoring system
sensors
circuit
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.)
Ceased
Application number
EP80108235A
Other languages
German (de)
English (en)
Other versions
EP0032593A3 (fr
Inventor
Hans Günther STADELMAYR
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0032593A2 publication Critical patent/EP0032593A2/fr
Publication of EP0032593A3 publication Critical patent/EP0032593A3/fr
Ceased legal-status Critical Current

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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
    • G08B29/18—Prevention or correction of operating errors
    • G08B29/183—Single detectors using dual technologies
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
    • 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
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/04—Monitoring of the detection circuits
    • G08B29/046—Monitoring of the detection circuits prevention of tampering with detection circuits
    • 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 invention relates to an alarm, security and monitoring system with several sensors installed in a room according to the preamble of the main claim.
  • a monitoring or alarm system is known from DE OS 2 331 328, with two sensors installed in a room, which respond to at least two different physical phenomena that occur inevitably with each alarm event and detect the same monitoring zone, both sensors working according to the Doppler principle work.
  • increased security is achieved compared to conventional commercial alarm systems. Nevertheless, there is still considerable susceptibility to sabotage and a large error rate.
  • the invention is therefore based on the object of providing an alarm, security and monitoring system in which the known susceptibility to faults, such as e.g. Failures, false alarms, sabotage possibilities are almost completely excluded.
  • This object is achieved in that at least three sensors are provided which respond to different physical phenomena that occur inevitably with each alarm event or react differently to the same physical phenomenon or in two or more different ways and detect the same monitoring zone, and that the sensors work together according to the majority principle.
  • Interaction based on the majority principle is understood here to mean that an alarm is only issued if more than half of all sensors or sensors and combined sensor pairs operating according to the Doppler principle send an alarm message to the transmission channel or to several transmission channels towards the central station or Submit evaluation unit.
  • the measure described above ensures that the failure of a sensor or its possible influencing or bypassing does not impair the effectiveness of the system.
  • three or more sensors are used which respond to three or more different physical phenomena. It has proven to be particularly advantageous if at least two of the sensors work according to the Doppler principle and if they are arranged at an angle to one another, an orthogonal arrangement generally providing the best results.
  • the individual sensors acting according to the Doppler principle are linked via an OR circuit.
  • a pair of sensors working according to the Doppler principle, of which the individual sensors are connected in an OR circuit is linked with another sensor and / or another sensor pair working according to the Doppler principle, the individual sensors of which are connected in an OR circuit, via AND- Circuit.
  • lateral inhibition coined by the Bekesy Nobel Prize winner, is understood to mean the mutual inhibition of parallel links, as found in the field of communications technology.
  • the alarm, security and monitoring system is to be designed to be mobile it is possible to design the signal paths using a combination of the power network, radio and own wiring.
  • the safety of the system is further increased if, at the end of each signal path, a circuit which responds to faults and triggers an alarm is provided.
  • the independent signal paths can be formed in a simple manner from devices for utilizing several different signal transmission frequency bandwidths or different pulse sequences on the same medium. It is also expedient to use continuous radio as monitored idle activity over the radio path, the coded-modulated fault message then triggering the alarm.
  • Arming / disarming or switching on / off are particularly sensitive areas of the alarm system, since these must be installed outside the monitored area.
  • Corresponding considerations also apply to the coding of the control center, which expediently takes place via an external unit that has no direct connection path to the control center.
  • galvanic isolation into them, which is expediently effected via a relay circuit.
  • each individual channel to report interference with each other channel using a special device.
  • coincidence protection circuits it is prevented that different response times of the sensors, different transition and transmission times of different channels and different processing times of any intermediate elements endanger the coincidence of the alarm signals, so that under certain circumstances no alarm is triggered even if an alarm is present.
  • the installation of the systems is facilitated by the fact that different types of sensors are integrated in one housing.
  • a surveillance zone for example a room, is indicated with the dashed frame 1.
  • Four sensors 2-5 are arranged in the monitoring zone 1, the sensor 2 being an ultrasound sensor, the sensors 3, 4 infrared sensors and the sensor 5 being a microwave sensor.
  • the sensors are each connected to detectors 6 - 9 via three separate transmission channels K 1 - K 3.
  • the channels K 1 - K 3 can be part of an existing line system, a cable network specially installed for the alarm system, a radio transmission path or a line network.
  • the different lines indicate that three channels K 1, K 2 and K 3 are separate transmission paths.
  • detectors 6, 7 and 9 are lateral inhibitors, each designated LI, which effect the mutual monitoring of the channels supplied to these detectors.
  • a majority circuit 10 designated M is provided, which carries out an evaluation of the signals fed through the corresponding channels K 1, K 2 and K 3 according to the majority principle and then the detector 8 via a channel K 4 controls.
  • the detector 8 and the majority circuit 10 are accommodated in a common housing 11 indicated by dash-dotted lines, which is specially secured against sabotage by means of a structure-borne sound detector (not shown in more detail).
  • the majority circuit 12 From the detectors 6, 7 and 8, three separate channels K 1 ', K 2' and K 3 'lead to a majority circuit 12, in which another channel K 5 also leads, which leads from the detector 9.
  • the majority circuit 12 As indicated by reference numerals 12a, 12b and 12c, first carries out an evaluation according to the majority principle, after which the overall evaluation takes place, i.e. it is checked whether the majority of detectors 6 - 9 have reported an alarm.
  • the reference numeral 13 indicates on the one hand that the detector 9 and the majority circuit 12 are integrated in an optionally secured housing, and on the other hand the fact that the detector 9 is preferred over each of the other detectors 6-8 in the majority assessment. (Instead of preferential treatment, which corresponds to a majority guarantee, a disadvantage could also be provided for this detector, which would correspond to a minority guarantee.)
  • three mutually independent channels K 6, K 7 and K 8 lead to the evaluation unit 14, which can be the control center, for example.
  • the channels K 6 -K 8 are monitored via a lateral inhibition circuit 15 in the control center 14.
  • Channels K 9, K 10 and K 11 lead from the control center 14 to various alarm transmitters 16-19, the mutual channel monitoring in the alarm transmitters 16 and 18 by means of a lateral inhibitor 16a, 18a, in the alarm transmitters 17 and 19 is effected by means of majority circuits 17b and 19b.
  • the system is switched on and off via an arming / disarming S / US 20, which is attached separately from the control center and is connected to it via independent channels K 12 - K 14.
  • the channels K 12 - K 14 initially lead to a transmitter 21, which then controls the center 14 via channels K 12'-K 14 '. This measure ensures that the control center cannot be located and cannot be destroyed from the switch-on and switch-off unit 20.
  • a coding station 22 also interacts with the control center 14 and is connected to a relay station 24 via channels K 15, K 16, K 17 and possibly a majority circuit 23, which acts on the control center via a channel K 18.
  • the relay station 24 causes a galvanic separation between the coding station 22 and the control center 14 and thus also prevents possible destruction from the coding station.
  • the sensors 4 and 5 are excited, as indicated by a small star inside the box. In contrast, sensors 2 and 3 are not excited.
  • the sensors 4 and 5 therefore send signals via their associated channels K 1 - K 3 to the majority circuit 10 or the detector 9, the channel K 1 between the sensor 4 and the majority circuit 10 being disturbed in the case shown. This is indicated by the absence of a corresponding arrow on this channel in the drawing, while the arrows in the other channels show that a signal is being transmitted.
  • the majority circuit 10 triggers the detector 8 via the channel K 4, which in turn sends an alarm message to the majority circuit via the channels K 1 'and K 2' 12 passes on.
  • the channel K 3 ' is also disturbed in this case for reasons not specified.
  • the detector 9 also sends a signal to the majority circuit 12 via the channel K 5.
  • the majority circuit 12 now determines that no signal has been supplied by the internal majority circuits 12a and 12b, but that a corresponding signal is present from the internal majority circuit 12c and also from the detector 9 via the channel K 5. Since the detector 9 is preferred by the circuit 13, the majority circuit 12 makes the decision that an alarm is present and forwards this decision via the channels K 6 -K 8 to the control center 14, which triggers alarm transmitters 16 - 19 via channels K 9-K 11.
  • a disturbance in the transmission channel K 10 leading to the alarm transmitter 16 and in the transmission channel K 11 leading to the alarm transmitter 19 has no effect, since the lateral inhibition circuit 16a or the majority circuit 19 still ascertain with certainty that an alarm is present.
  • FIG. 2 schematically shows the arrangement and linking of a plurality of sensors attached for monitoring an area 25.
  • sensors are two pairs of sensors based on the Doppler principle, the first pair of sensors combined in a common housing 26, which consists of an ultrasonic sensor 27 and a microwave sensor 28, and the second pair of sensors, which consist of an ultrasonic sensor 29 and a microwave sensor 30, which are set up separately from each other.
  • the sensor pairs formed from the sensors 27, 28 and 29, 30 are arranged orthogonally to one another with respect to their radiation and reception directions.
  • An infrared sensor 31 is arranged between the two pairs of sensors and at an angle to them.
  • the sensors are connected to one another in an AND or OR circuit, as is shown by the corresponding symbols in Fig. 2 is shown.
  • the ultrasonic sensor 27 and the microwave sensor 28 of the first pair of sensors are connected to one another in an AND circuit.
  • the link between the microwave sensor 30 and the ultrasonic sensor 27, or, as indicated by the dashed line, the microwave sensor 28 takes place via an OR circuit.
  • the link between the ultrasound sensor 29 and the microwave sensor 28 or, as indicated by the broken line, the ultrasound sensor 27 is made by means of an OR circuit.
  • the individual wiring and the interconnection with the control center are not shown for reasons of clarity.
  • the sensor types described in the figures are only examples, so it is of course also possible to use capacitive detectors, structure-borne sound detectors, glass breakage sensors, video cameras, reed and double reed contacts, etc. in addition to the ultrasonic sensors mentioned, the microwave sensors and the infrared sensors be.
  • the alarm devices can be optical and acoustic devices, such as flashing signals and sirens, or telephone or radio dialing devices.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Alarm Systems (AREA)
  • Burglar Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
EP80108235A 1980-01-16 1980-12-29 Installation d'alarme, de sécurité et de surveillance Ceased EP0032593A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3001452 1980-01-16
DE19803001452 DE3001452A1 (de) 1980-01-16 1980-01-16 Alarm-, sicherungs- und ueberwachungsanlage

Publications (2)

Publication Number Publication Date
EP0032593A2 true EP0032593A2 (fr) 1981-07-29
EP0032593A3 EP0032593A3 (fr) 1982-02-03

Family

ID=6092208

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80108235A Ceased EP0032593A3 (fr) 1980-01-16 1980-12-29 Installation d'alarme, de sécurité et de surveillance

Country Status (4)

Country Link
US (1) US4401976A (fr)
EP (1) EP0032593A3 (fr)
JP (1) JPS56105592A (fr)
DE (1) DE3001452A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573893A1 (fr) * 1984-11-23 1986-05-30 Baldach Patricia Procede et dispositifs pour declencher une alarme ou un automatisme en evitant des declenchements intempestifs
EP0255812A2 (fr) * 1986-08-08 1988-02-10 ELKRON S.p.A. Dispositif de surveillance avec des composants détecteurs à infrarouge et à radiofréquence
EP0367402B1 (fr) * 1988-09-29 1994-08-10 C & K Systems, Inc. Procédé et système de détection d'intrusion

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DE3811912A1 (de) * 1988-04-09 1989-11-09 Telefunken Electronic Gmbh Sicherungsgeraet mit einem hf-empfaenger
US4833450A (en) * 1988-04-15 1989-05-23 Napco Security Systems, Inc. Fault detection in combination intrusion detection systems
US4857912A (en) * 1988-07-27 1989-08-15 The United States Of America As Represented By The Secretary Of The Navy Intelligent security assessment system
US5181010A (en) * 1988-08-04 1993-01-19 Chick James S Automotive security system with discrimination between tampering and attack
EP0374331A1 (fr) * 1988-12-19 1990-06-27 Equipement Industriel Normand Dispositif de sécurité pour un organe distributeur relié à un élément totalisateur de produit distribué
US5058032A (en) * 1989-10-23 1991-10-15 Autotrol Corporation Apparatus and method for monitoring a water treatment system
US5239459A (en) * 1990-02-05 1993-08-24 General Research Corporation Automated assessment processor for physical security system
US5122628A (en) * 1990-05-25 1992-06-16 Fike Corporation Sudden pressure rise detector
US5144661A (en) * 1991-02-11 1992-09-01 Robert Shamosh Security protection system and method
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WO1979000902A1 (fr) * 1978-04-07 1979-11-15 H Stadelmayr Dispositif d'alarme partiellement amovible avec protection contre le non-fonctionnement, la panne, le sabotage et la fausse alarme

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573893A1 (fr) * 1984-11-23 1986-05-30 Baldach Patricia Procede et dispositifs pour declencher une alarme ou un automatisme en evitant des declenchements intempestifs
EP0255812A2 (fr) * 1986-08-08 1988-02-10 ELKRON S.p.A. Dispositif de surveillance avec des composants détecteurs à infrarouge et à radiofréquence
EP0255812A3 (fr) * 1986-08-08 1989-10-18 ELKRON S.p.A. Dispositif de surveillance avec des composants détecteurs à infrarouge et à radiofréquence
EP0367402B1 (fr) * 1988-09-29 1994-08-10 C & K Systems, Inc. Procédé et système de détection d'intrusion

Also Published As

Publication number Publication date
DE3001452A1 (de) 1981-07-23
US4401976A (en) 1983-08-30
JPS56105592A (en) 1981-08-22
EP0032593A3 (fr) 1982-02-03

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