EP3477611B1 - Detection and alert device for alarm system and alarm system comprising same - Google Patents
Detection and alert device for alarm system and alarm system comprising same Download PDFInfo
- Publication number
- EP3477611B1 EP3477611B1 EP18202689.8A EP18202689A EP3477611B1 EP 3477611 B1 EP3477611 B1 EP 3477611B1 EP 18202689 A EP18202689 A EP 18202689A EP 3477611 B1 EP3477611 B1 EP 3477611B1
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- European Patent Office
- Prior art keywords
- detection
- radio
- intrusion
- interference
- ism
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- 238000001514 detection method Methods 0.000 title claims description 70
- 238000004891 communication Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 239000004509 smoke generator Substances 0.000 claims description 5
- 238000002604 ultrasonography Methods 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 22
- 238000012544 monitoring process Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 241001080024 Telles Species 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/20—Countermeasures against jamming
- H04K3/22—Countermeasures against jamming including jamming detection and monitoring
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/20—Countermeasures against jamming
- H04K3/22—Countermeasures against jamming including jamming detection and monitoring
- H04K3/224—Countermeasures against jamming including jamming detection and monitoring with countermeasures at transmission and/or reception of the jammed signal, e.g. stopping operation of transmitter or receiver, nulling or enhancing transmitted power in direction of or at frequency of jammer
- H04K3/226—Selection of non-jammed channel for communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K3/00—Jamming of communication; Counter-measures
- H04K3/80—Jamming or countermeasure characterized by its function
- H04K3/88—Jamming or countermeasure characterized by its function related to allowing or preventing alarm transmission
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
- G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems
- G08B13/1618—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means
-
- 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
- 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
- G08B13/194—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 image scanning and comparing systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B15/00—Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives
- G08B15/02—Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives with smoke, gas, or coloured or odorous powder or liquid
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K2203/00—Jamming of communication; Countermeasures
- H04K2203/10—Jamming or countermeasure used for a particular application
- H04K2203/16—Jamming or countermeasure used for a particular application for telephony
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K2203/00—Jamming of communication; Countermeasures
- H04K2203/10—Jamming or countermeasure used for a particular application
- H04K2203/18—Jamming or countermeasure used for a particular application for wireless local area networks or WLAN
Definitions
- the present invention relates to alarm systems protecting premises and proposes a detection and warning device intended to reinforce their security.
- a large part of the effectiveness of an alarm system lies in its ability to quickly scare away an intruder who has broken into premises such as offices, industrial or commercial premises or even secure habitats so as not to leave them time to commit theft or damage.
- alarm systems are increasingly systems where the various sensors and the alarm center which manages them and which is in charge of transmitting the alarms to a center.
- monitoring stations communicate by radio, which introduces a major security vulnerability.
- radio jammers capable of rendering this type of alarm system inoperative by not only cutting communications between the sensors and the alarm system of the alarm system on the ISM frequency bands, which are dedicated to short-range transmissions for industrial, scientific, medical, domestic or similar applications as defined for example in Europe in table 1 of EN 55011 but also by cutting the GSM link to the central monitoring station by saturating the GSM receiver of the alarm center.
- the document FR 2 700 873 A1 discloses a detection and warning device for an alarm system according to the preamble of claim 1.
- the documents US 2016/0240074 A1 and US 2016/0330069 A1 disclose the use of communications by a respectively LPWAN and Ultra Narrow Band network, in the event of interference detection.
- the present invention aims to propose a device adapted firstly to maintain communication with a remote monitoring center and to allow the immediate activation of the deterrent device (s) in the event of detection of radio interference and intrusion.
- the present invention mainly proposes a detection and warning device according to claim 1.
- the invention further relates to an alarm system comprising at least one detection device of the invention connected by ISM means to a local alarm center.
- the detection and warning device being connected with a deterrent device, the method preferably comprises a step of starting up the deterrent device directly by the detection device upon detection by the device for detecting an intrusion and jamming.
- the detection of radio interference includes a time delay suitable for filtering out parasitic interference.
- the main object of the detection device of the present invention is to remedy the security breach linked to the loss of communication of an alarm center with its sensors and with a remote monitoring center during radio jamming.
- the actions that the device of the invention can perform in such a case are to instantly activate the deterrent system and send an alert to the central monitoring station if, when it is armed, it detects radio jamming with or without intrusion. .
- the example of figure 1B differs from that of the figure 1A in that the radio module 6, which comprises a reception component 62 and a transmission component 61, performs the ISM transmission / reception functions, the interference monitoring function by scanning its reception part in addition to the transmission periods / reception of ISM frames.
- the radio module 6 which comprises a reception component 62 and a transmission component 61, performs the ISM transmission / reception functions, the interference monitoring function by scanning its reception part in addition to the transmission periods / reception of ISM frames.
- the radio module 4 of the figure 1A or 6 of the figure 1B is suitable for transmitting a low bit rate type frame by radio to an LPWAN network.
- a low-speed network suitable for the invention is the ultra-narrow band "Ultra Narrow Band modulation" network developed by the company SIGFOX which operates in the ISM band and which makes it possible to transmit messages with a speed of the order of 100 bits per second over long distances with great robustness against noise and in particular interference.
- Another example is the network using a protocol and a medium according to the LoRa standard which is also suitable for the present application.
- the device can also be programmed to use the networks known under the names Nwave, Ingénu or Weightless.
- Low-speed LPWAN network transmission takes place in the event of detection of radio jamming with or without intrusion. It should be noted that the jamming devices capable of being used against alarm systems affect the receivers of these systems by saturating them.
- the jamming therefore affects the alarm center but not the device of the invention in its LPWAN operating mode where it only has a one-way transmitter function.
- the remote network receiver is not affected by the jammer used to disturb the alarm center and possibly the GSM telephones.
- the jammers used to disrupt alarm systems have an action zone of a few meters, or even a few tens of meters.
- the reception of the information transmitted by the device of the invention is always possible by the remote receivers of the LPWAN networks.
- the figure 2 represents a traditional alarm system architecture to which the device of the invention is added.
- the alarm system comprises sensors 11A, 11B, 11C, 11D, a control unit 15, a deterrent device 12, siren, smoke generator or vocal message diffuser, for example, and the device of the invention 10.
- the various sensors, deterrent device and device of the invention dialogue bidirectionally with the control unit according to a traditional established protocol.
- the central 15 is for its part regularly in bidirectional connection by the GSM network with a monitoring center 100 as known in the field.
- the figure 3 represents the same system whose elements are disturbed by a jammer device 60 which disturbs the receivers of the components 10, 11, 12, 15 of the alarm system and thereby breaks the bidirectional links both between the sensors, the deterrent device and the power station between the power station and the monitoring center 100.
- the device 10 of the invention is still able to send one or more unidirectional frames to the antennas 70 of the LPWAN network which retransmits the information to the monitoring center 100.
- the device 10 can either be offered as a stand-alone product and in this case it is packaged in a small box, powered by battery or possibly battery and solar sensor and having an interface for controlling an external device, siren, smoke generator , voice message generator, or it is directly integrated into the deterrent device.
- the operation of the device is as follows. If the device, while armed, detects radio jamming, it sends a radio jamming alarm over the LPWAN network to the monitoring center of the monitoring company and / or the owner of the installation or any other person in charge. responsible for monitoring the room and, if it detects an intrusion in addition, it will trigger the deterrent device that it controls (Siren, smoke generator, voice deterrent, etc.)
- the detection and alarm device being connected, by wire or infrared to avoid any radio interference, to the deterrent device or integrated into this device, the software of the device triggers a step of starting up the device. deterrent directly by the detection and alarm device of the invention.
- the monitoring center will apply the instructions (call from the owner or the site manager, call from the police, etc.) and the deterrent device will cycle, siren for a determined time, or broadcast smoke or voicemail messages.
- the jamming detection is carried out for example by means of a timed loop comprising a succession of confirmation detections of the presence of jamming to eliminate false detections such as interference due to starting of electric motors, fault of 'two-wheel interference suppression or other incidental interference interference.
- the device of the invention which must be distinct from the local alarm center, the destruction of which is generally the priority target of burglars using jammers, can be hidden so as not to be spotted and continue to transmit in the event that the control unit is destroyed.
- the device of the invention can for example be arranged so as to monitor access to the central unit.
- the received LF signals are converted by an analog / digital converter 301 of the processing means 3 in order to be processed according to the operating mode of the device.
- the transmitted LF signals come from a digital / analog converter 302 of the processing means 3.
- switches are controlled by the processing means as a function of the program phase carried out.
- the processing means scan the output of converter 303 to detect prolonged saturation of the output of the receiver.
- the module of the figure 4 can be dedicated to transmissions / receptions, a simple annex receiver module used for the detection of interference.
- the detection and warning device of the invention can be integrated into an item of equipment of the alarm system other than the central unit, such as a device. of deterrence.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
- Burglar Alarm Systems (AREA)
Description
La présente invention se rapporte aux systèmes d'alarme protégeant des locaux et propose un dispositif de détection et d'alerte destiné à en renforcer la sécurité.The present invention relates to alarm systems protecting premises and proposes a detection and warning device intended to reinforce their security.
Une grande partie de l'efficacité d'un système d'alarme réside dans sa capacité à faire fuir rapidement un intrus qui aurait pénétré par effraction dans des locaux tels que bureaux, locaux industriels ou commerciaux ou encore habitats sécurisés afin de ne pas lui laisser le temps de commettre un vol ou des dégradations.A large part of the effectiveness of an alarm system lies in its ability to quickly scare away an intruder who has broken into premises such as offices, industrial or commercial premises or even secure habitats so as not to leave them time to commit theft or damage.
Pour des raisons de cout et de facilité d'installation les systèmes d'alarme sont de plus en plus des systèmes où les différents capteurs et la centrale d'alarme qui en effectue la gestion et qui est en charge de transmettre les alarmes à un centre de surveillance distant communiquent par radio, ce qui introduit une faille de sécurité importante.For reasons of cost and ease of installation, alarm systems are increasingly systems where the various sensors and the alarm center which manages them and which is in charge of transmitting the alarms to a center. monitoring stations communicate by radio, which introduces a major security vulnerability.
En effet il existe des brouilleurs radios capables de rendre inopérants ce type de systèmes d'alarmes en coupant non seulement les communications entre les capteurs et la centrale d'alarme du système d'alarme sur les bandes de fréquences ISM, qui sont dédiées à des transmissions à courte portée pour des applications industrielles, scientifiques, médicales, domestiques ou similaires telles que définies par exemple en Europe au tableau 1 de l'EN 55011 mais aussi en coupant la liaison GSM vers le centre de télésurveillance en saturant le récepteur GSM de la centrale d'alarme.Indeed, there are radio jammers capable of rendering this type of alarm system inoperative by not only cutting communications between the sensors and the alarm system of the alarm system on the ISM frequency bands, which are dedicated to short-range transmissions for industrial, scientific, medical, domestic or similar applications as defined for example in Europe in table 1 of EN 55011 but also by cutting the GSM link to the central monitoring station by saturating the GSM receiver of the alarm center.
Les systèmes de dissuasion courants tels que sirène, dispositif de diffusion de messages vocaux, générateur de fumée ou autres étant reliés et mis en marche par la centrale d'alarme qui communiquent avec cette dernière par radio deviennent eux aussi inopérants, le brouillage radio entrainant dans le meilleur des cas un message sur la console du télé-surveillant indiquant une perte de connexion avec la centrale d'alarme mais souvent au bout de plusieurs heures et sans autre indication sur l'origine du problèmeCommon deterrent systems such as siren, voice message broadcasting device, smoke generator or others being connected and activated by the alarm control panel which communicate with the latter by radio also become inoperative, with radio interference resulting in in the best case, a message on the remote monitor's console indicating a loss of connection with the alarm center but often after several hours and without further indication of the source of the problem
Le document
Au vu de cette situation, la présente invention vise à proposer un dispositif adapté en premier lieu à conserver une communication avec un centre de télésurveillance distant et à permettre la mise en marche immédiate du ou des dispositifs de dissuasion en cas de détection de brouillage radio et d'intrusion.In view of this situation, the present invention aims to propose a device adapted firstly to maintain communication with a remote monitoring center and to allow the immediate activation of the deterrent device (s) in the event of detection of radio interference and intrusion.
Pour ce faire la présente invention propose principalement un dispositif de détection et d'alerte selon la revendication 1.To do this, the present invention mainly proposes a detection and warning device according to
L'invention concerne en outre un système d'alarme comportant au moins un dispositif de détection de l'invention relié par les moyens ISM à une centrale d'alarme locale.The invention further relates to an alarm system comprising at least one detection device of the invention connected by ISM means to a local alarm center.
L'invention propose par ailleurs un procédé de mise en œuvre du dispositif de détection et d'alerte qui comporte:
- une étape de mise en fonction du dispositif de détection;
- une étape de veille dans laquelle le dispositif de détection scrute le dispositif de détection d'intrusion et le premier module radio en vue de détecter des évènements intrusion et/ou brouillage radio;
- sur détection d'une intrusion sans détection de brouillage, une étape de communication ISM avec une centrale d'alarme locale qui gère le système d'alarme et qui prend en charge la gestion de l'intrusion;
- sur détection d'un brouillage radio sans détection d'intrusion, une étape de transmission de l'information brouillage à un centre de télésurveillance distant par liaison monodirectionnelle LPWAN;
- sur détection d'une intrusion et d'un brouillage radio, une étape de transmission de l'information intrusion et brouillage à un centre de télésurveillance distant par liaison monodirectionnelle LPWAN et de mise en route du dispositif de dissuasion directement par le dispositif de détection.
- a step of activating the detection device;
- a standby step in which the detection device scans the intrusion detection device and the first radio module with a view to detecting intrusion and / or radio jamming events;
- on detection of an intrusion without detection of jamming, an ISM communication step with a local alarm center which manages the alarm system and which takes charge of the management of the intrusion;
- on detection of radio jamming without intrusion detection, a step of transmitting the jamming information to a remote monitoring center by a one-way LPWAN link;
- on detection of an intrusion and of a radio jamming, a step of transmission of the intrusion and jamming information to a remote monitoring center by one-way LPWAN link and the activation of the deterrent device directly by the detection device.
Le dispositif de détection et d'alerte étant relié avec un dispositif de dissuasion, le procédé comporte préférablement une étape de mise en route du dispositif de dissuasion directement par le dispositif de détection sur détection par le dispositif de détection d'une intrusion et d'un brouillage.The detection and warning device being connected with a deterrent device, the method preferably comprises a step of starting up the deterrent device directly by the detection device upon detection by the device for detecting an intrusion and jamming.
Préférablement, la détection d'un brouillage radio comporte une temporisation adaptée à filtrer les brouillages parasites.Preferably, the detection of radio interference includes a time delay suitable for filtering out parasitic interference.
D'autres caractéristiques et avantages de l'invention seront apparents à la lecture de la description qui suit d'un exemple non limitatif de réalisation de l'invention en référence aux dessins qui représentent:
- aux
figures 1A et 1B : deux exemples de réalisation d'un dispositif de l'invention; - en
figure 2 : un exemple de schéma de système d'alarme équipé du dispositif de l'invention fonctionnant normalement en l'absence de brouillage; - en
figure 3 : le système d'alarme de lafigure 2 en présence d'un brouillage; - en
figure 4 : un schéma de module radio applicable à l'invention.
- to the
figures 1A and 1B : two embodiments of a device of the invention; - in
figure 2 : an example of a diagram of an alarm system equipped with the device of the invention operating normally in the absence of interference; - in
figure 3 : the alarm system of thefigure 2 in the presence of interference; - in
figure 4 : a diagram of a radio module applicable to the invention.
Le dispositif de détection de la présente invention a objet principal de palier à la faille de sécurité liée à la perte de communication d'une centrale d'alarme avec ses capteurs et avec un centre de télésurveillance lors d'un brouillage radio.The main object of the detection device of the present invention is to remedy the security breach linked to the loss of communication of an alarm center with its sensors and with a remote monitoring center during radio jamming.
Les actions que peut réaliser le dispositif de l'invention dans un tel cas sont mettre instantanément en marche le système de dissuasion et en envoyer une alerte au centre de télésurveillance si, lorsqu'il est armé, il détecte un brouillage radio avec ou non intrusion.The actions that the device of the invention can perform in such a case are to instantly activate the deterrent system and send an alert to the central monitoring station if, when it is armed, it detects radio jamming with or without intrusion. .
Le dispositif de détection et d'alerte 10 tel que décrit à la
- d'un détecteur de
mouvement 1 soit à infrarouge soit à ultrason, soit un double capteur infrarouge-ultrason pour une plus grande fiabilité; d'un composant radio 2 permettant de détecter les brouillages sur la bande ISM et GSM;d'un module radio 4 pourvu d'un composant d'émission et de réception, adapté d'une part à fonctionner sur la bande ISM du système d'alarme et comportant pour ce faire les protocoles de transmission adaptés à transmettre une trame de signal d'alerte vers la centrale d'alarme locale du système en mode normal, mais adapté d'autre part en mode de transmission monodirectionnel sur une bande de fréquences ISM telle que la bande 868 MHz en Europe et 902 MHz aux USA adaptée aux réseaux de transmission bas débit LPWAN en anglais "Low Power Wide Area Network" c'est à dire des réseaux étendus basse puissance externes au système d'alarme;- de
moyens 3 de traitement T, moyens de calcul C et moyens de mémorisation M comme un calculateur à base de microcontrôleur pourvu de moyens de conversion analogique/numérique et numérique/analogique, réalisant un traitement du signal fourni par le détecteur de présence et par le composant radio de détection de brouillage ainsi qu'un pilotage du module radio émetteur/récepteur pour transmettre des alarmes selon le contexte; - de moyens d'alimentation électrique 5.
- a
motion detector 1 either infrared or ultrasound, or a double infrared-ultrasound sensor for greater reliability; - a
radio component 2 making it possible to detect interference on the ISM and GSM band; - a
radio module 4 provided with a transmission and reception component, adapted on the one hand to operate on the ISM band of the alarm system and comprising for this purpose the transmission protocols adapted to transmit a signal frame alert to the local alarm center of the system in normal mode, but also suitable for unidirectional transmission mode on an ISM frequency band such as the 868 MHz band in Europe and 902 MHz in the USA suitable for LPWAN low speed transmission in English "Low Power Wide Area Network", that is to say low power wide area networks external to the alarm system; - processing means 3 T, calculation means C and storage means M such as a microcontroller-based computer provided with analog / digital and digital / analog conversion, processing the signal supplied by the presence detector and by the jamming detection radio component as well as controlling the transmitter / receiver radio module to transmit alarms according to the context;
- power supply means 5.
L'exemple de la
Le module radio 4 de la
Sur un tel réseau, la transmission se fait en mode monodirectionnel par une transmission radio généralement à faible débit. Un exemple de réseau bas débit approprié à l'invention est le réseau à bande ultra étroite "Ultra Narrow Band modulation" développé par la société SIGFOX qui opère dans la bande ISM et qui permet de transmettre des messages avec un débit de l'ordre de 100 bits par secondes sur de longues distances avec une grande robustesse contre le bruit et en particulier le brouillage.On such a network, transmission takes place in unidirectional mode by generally low-speed radio transmission. An example of a low-speed network suitable for the invention is the ultra-narrow band "Ultra Narrow Band modulation" network developed by the company SIGFOX which operates in the ISM band and which makes it possible to transmit messages with a speed of the order of 100 bits per second over long distances with great robustness against noise and in particular interference.
Un autre exemple est le réseau utilisant un protocole et un support selon la norme LoRa qui est aussi adapté à la présente application. De même, le dispositif peut aussi être programmé pour utiliser les réseaux connus sous les appellations Nwave, Ingénu ou Weightless.Another example is the network using a protocol and a medium according to the LoRa standard which is also suitable for the present application. Likewise, the device can also be programmed to use the networks known under the names Nwave, Ingénu or Weightless.
La transmission bas débit réseau LPWAN se fait en cas de détection de brouillage radio avec ou sans intrusion. Il est à noter que les dispositifs de brouillage susceptibles d'être employés contre les systèmes d'alarme affectent les récepteurs de ces systèmes en les saturant.Low-speed LPWAN network transmission takes place in the event of detection of radio jamming with or without intrusion. It should be noted that the jamming devices capable of being used against alarm systems affect the receivers of these systems by saturating them.
Le brouillage affecte donc la centrale d'alarme mais pas le dispositif de l'invention dans son mode de fonctionnement LPWAN où il n'a qu'une fonction d'émetteur monodirectionnel. De même, le récepteur distant du réseau n'est pas affecté par le brouilleur utilisé pour perturber la centrale d'alarme et éventuellement les téléphones GSM. En effet, les brouilleurs utilisés pour perturber des systèmes d'alarme ont une zone d'action de quelques mètres, voir quelques dizaines de mètres. De ce fait, la réception de l'information émise par le dispositif de l'invention est toujours possible par les récepteurs distants des réseaux LPWAN.The jamming therefore affects the alarm center but not the device of the invention in its LPWAN operating mode where it only has a one-way transmitter function. Likewise, the remote network receiver is not affected by the jammer used to disturb the alarm center and possibly the GSM telephones. Indeed, the jammers used to disrupt alarm systems have an action zone of a few meters, or even a few tens of meters. As a result, the reception of the information transmitted by the device of the invention is always possible by the remote receivers of the LPWAN networks.
La
Le système d'alarme comporte des capteurs 11A, 11B, 11C, 11D, une centrale 15, un dispositif de dissuasion 12, sirène, générateur de fumée ou diffuseur de messages vocaux par exemple et le dispositif de l'invention 10.The alarm system comprises
Les différents capteurs, dispositif de dissuasion et dispositif de l'invention dialoguent de manière bidirectionnelle avec la centrale selon un protocole établi traditionnel. La centrale 15 est pour sa part régulièrement en liaison bidirectionnelle par le réseau GSM avec un centre de surveillance 100 comme connu dans le domaine.The various sensors, deterrent device and device of the invention dialogue bidirectionally with the control unit according to a traditional established protocol. The central 15 is for its part regularly in bidirectional connection by the GSM network with a
La
Dans cette configuration, le dispositif 10 de l'invention est toujours en mesure d'envoyer une ou plusieurs trames monodirectionnelles vers les antennes 70 du réseau LPWAN qui retransmet l'information au centre de surveillance 100.In this configuration, the
Le dispositif 10 peut être soit proposé sous forme de produit autonome et dans ce cas il est conditionné dans un petit boitier, alimenté par pile ou éventuellement batterie et capteur solaire et disposant d'une interface pour piloter un dispositif extérieur, Sirène, générateur de fumée, générateur de message vocaux, soit il est directement intégré dans le dispositif de dissuasion.The
Le fonctionnement du dispositif est le suivant. Si le dispositif, alors qu'il est armé, détecte un brouillage radio il envoie sur le réseau LPWAN une alarme brouillage radio à destination du centre de surveillance de la société de télésurveillance et/ou du propriétaire de l'installation ou tout autre personne en charge de la surveillance du local et, si il détecte en plus une intrusion il va déclencher le dispositif de dissuasion qu'il pilote (Sirène, générateur de fumée, dissuadeur vocal, ...)The operation of the device is as follows. If the device, while armed, detects radio jamming, it sends a radio jamming alarm over the LPWAN network to the monitoring center of the monitoring company and / or the owner of the installation or any other person in charge. responsible for monitoring the room and, if it detects an intrusion in addition, it will trigger the deterrent device that it controls (Siren, smoke generator, voice deterrent, etc.)
Les moyens de traitement et de calcul sont programmés pour fonctionner selon le processus suivant lorsque le dispositif est armé en mode de surveillance une fois mis en fonction:
- réalisation d'une étape de veille dans laquelle le dispositif de détection scrute le dispositif de détection d'intrusion et le premier module radio en vue de détecter des évènements intrusion et/ou brouillage radio sous la forme d'une boucle logicielle incluant aussi un dialogue périodique avec la centrale d'alarme;
- sur détection d'une intrusion sans détection de brouillage, démarrage d'une étape de communication ISM avec une centrale d'alarme locale qui gère le système d'alarme et qui prend en charge la gestion de l'intrusion;
- sur détection d'un brouillage radio, sans détection d'intrusion, une étape de transmission de l'information brouillage à un centre de télésurveillance distant par liaison monodirectionnelle LPWAN pour l'informer d'une situation à risque et déclencher une réaction appropriée
- sur détection d'une intrusion et d'un brouillage radio prolongé, une étape de transmission de l'information intrusion et brouillage à un centre de télésurveillance distant par liaison monodirectionnelle LPWAN pour informer de l'intrusion avec brouillage.
- performing a standby step in which the detection device scans the intrusion detection device and the first radio module with a view to detecting intrusion and / or radio jamming events in the form of a software loop also including a dialogue periodically with the alarm center;
- on detection of an intrusion without detection of jamming, start of an ISM communication step with a local alarm center which manages the alarm system and which takes charge of the management of the intrusion;
- on detection of radio jamming, without intrusion detection, a step of transmitting the jamming information to a remote monitoring station by one-way LPWAN link to inform it of a risk situation and trigger an appropriate reaction
- on detection of an intrusion and of a prolonged radio jamming, a step of transmission of the intrusion and jamming information to a remote monitoring center by one-way LPWAN link to inform of the intrusion with jamming.
Dans ce dernier cas, le dispositif de détection et d'alarme étant relié, de manière filaire ou infrarouge pour éviter tout brouillage radio, au dispositif de dissuasion ou intégré à ce dispositif, le logiciel du dispositif déclenche une étape de mise en route du dispositif de dissuasion directement par le dispositif de détection et d'alarme de l'invention.In the latter case, the detection and alarm device being connected, by wire or infrared to avoid any radio interference, to the deterrent device or integrated into this device, the software of the device triggers a step of starting up the device. deterrent directly by the detection and alarm device of the invention.
Une fois l'alarme déclenchée le centre de télésurveillance appliquera les consignes (Appel du propriétaire ou du responsable du site, appel des forces de police, ...) et le dispositif de dissuasion déroulera son cycle, sirène pendant un temps déterminé, ou émission de fumée ou émission de messages vocaux.Once the alarm is triggered, the monitoring center will apply the instructions (call from the owner or the site manager, call from the police, etc.) and the deterrent device will cycle, siren for a determined time, or broadcast smoke or voicemail messages.
Il est à noter que la détection de brouillage est réalisée par exemple au moyen d'une boucle temporisée comportant une succession de détections de confirmation de présence de brouillage pour éliminer les fausses détections telles que les brouillages dus à des démarrages de moteurs électriques, défaut d'antiparasitage de deux roues ou autres brouillages parasites fortuits.It should be noted that the jamming detection is carried out for example by means of a timed loop comprising a succession of confirmation detections of the presence of jamming to eliminate false detections such as interference due to starting of electric motors, fault of 'two-wheel interference suppression or other incidental interference interference.
Le dispositif de l'invention, qui doit être distinct de la centrale d'alarme locale dont la destruction est en général la cible prioritaire des cambrioleurs utilisant des brouilleurs, peut être caché pour ne pas être repéré et continuer d'émettre dans le cas où la centrale serait détruite. En particulier le dispositif de l'invention peut par exemple être disposé de façon à surveiller l'accès à la centrale.The device of the invention, which must be distinct from the local alarm center, the destruction of which is generally the priority target of burglars using jammers, can be hidden so as not to be spotted and continue to transmit in the event that the control unit is destroyed. In particular, the device of the invention can for example be arranged so as to monitor access to the central unit.
La
- un premier commutateur émission/
réception 201 séparant une voie de réception avec un filtre passe bandeRF 202, un amplificateur faible bruit 203 et une voie d'émission avec un amplificateur de puissance 204 et un driver (pilote) 205; - un deuxième commutateur émission/réception recevant ou alimentant une partie commune à l'émission/réception avec un passe bande
RF 207,un mélangeur 209 sur lequel arrive un signal issu d'un synthétiseur de fréquenceRF 208, un passe bande sur fréquence intermédiaire 210; - un troisième commutateur 211 alimentant une partie de réception pourvue d'un amplificateur fréquence intermédiaire 212,
un mélangeur 214, sur lequel arrive un signal émis parun générateur FI 216, et un filtre passe basBF 217 et recevant un signal d'une partie d'émission pourvue d'un amplificateurFI 213,un mélangeur 215 et un filtre passe bandeFI 218.
- a first transmit / receive
switch 201 separating a receive channel with anRF bandpass filter 202, alow noise amplifier 203 and a transmit channel with apower amplifier 204 and adriver 205; - a second transmit / receive switch receiving or supplying a common part for transmission / reception with an
RF band pass 207, amixer 209 on which arrives a signal from anRF frequency synthesizer 208, a band pass onintermediate frequency 210 ; - a
third switch 211 supplying a receiving part provided with anintermediate frequency amplifier 212, amixer 214, on which arrives a signal emitted by an IFgenerator 216, and a lowpass filter LF 217 and receiving a signal from a part of 'emission provided with an IFamplifier 213, amixer 215 and anIF bandpass filter 218.
Les signaux BF reçus sont convertis par un convertisseur analogique/numérique 301 des moyens de traitement 3 pour être traités selon le mode de fonctionnement du dispositif.The received LF signals are converted by an analog /
Les signaux BF émis sont issus d'un convertisseur numérique/analogique 302 des moyens de traitement 3.The transmitted LF signals come from a digital /
De même la commande des commutateurs est faite par les moyens de traitement en fonction de la phase de programme réalisée.Likewise, the switches are controlled by the processing means as a function of the program phase carried out.
Dans le cas où un tel module est utilisé pour détecter les brouillages, les moyens de traitement scrutent la sortie du convertisseur 303 pour détecter une saturation prolongée de la sortie du récepteur.In the case where such a module is used to detect interference, the processing means scan the output of converter 303 to detect prolonged saturation of the output of the receiver.
Comme vu précédemment, le module de la
L'invention n'est pas limitée aux exemples représentés et notamment comme dit plus haut, le dispositif de détection et d'alerte de l'invention peut être intégré dans un équipement du système d'alarme autre que la centrale tel qu'un dispositif de dissuasion.The invention is not limited to the examples shown and in particular as said above, the detection and warning device of the invention can be integrated into an item of equipment of the alarm system other than the central unit, such as a device. of deterrence.
Claims (11)
- A detection and warning device (10) for an alarm system, the device (10) including:- at least one intrusion detection device (1),- a radio component (2, 62) for detecting interference on the ISM and GSM bands,- processing means, calculation means and storage means (3), configured to perform a processing of the signal provided by the intrusion detection device and the interference detection radio component in order to detect an intrusion and/or a radio interference,- a radio module (4, 6) including an ISM receiving radio component (42, 62),- power supply means,characterised in that- the radio module (4, 6) further includes an ISM and LPWAN emitting radio component (41, 61) which is configured to transmit either an alert signal to a local alarm center in ISM band upon intrusion detection without radio interference, or an alert signal to a remote telemonitoring center through an LPWAN network in unidirectional mode in the case of radio interference detection with or without intrusion detection;- and in that the device (10) is integrated into a deterrent device (12) or is connected in a wired or infrared manner to a deterrent device, and includes means for activating the deterrent device in the case of intrusion detection with radio interference.
- The detection and warning device (10) for an alarm system according to claim 1, for which the interference detection radio component is the ISM receiving radio component (62) of the radio module.
- The detection and warning device (10) for an alarm system according to claim 1, for which the radio module (4) includes an ISM receiving radio component (42) which is distinct from the interference detection radio component (2).
- The detection and warning device according to claim 1, 2 or 3, characterised in that the intrusion detection device (1) includes a movement detector.
- The detection and warning device according to claim 4, characterised in that the movement detector includes at least one of an infrared sensor, an ultrasound sensor or a camera.
- The detection and warning device according to any of the preceding claims, characterised in that the intrusion detection device (1) includes a door leaf sensor.
- The detection and warning device according to one of the preceding claims 8, characterised in that the deterrent device (12) includes at least one of a siren, a smoke generator, a voice message broadcasting device.
- An alarm system including a detection and warning device according to any of the preceding claims, for which the LPWAN network is connected to a telemonitoring center (100).
- The alarm system including at least one detection and warning device according to any of the preceding claims, for which the device is connected by the ISM means to a local alarm center (15).
- A method for implementing a detection and warning device according to one of claims 1 to 7, characterised in that it includes:- a step of operating the detection device;- a standby step in which the detection device scans the intrusion detection device and the first radio receiver component in order to detect intrusion and/or radio interference events;- upon detection of an intrusion without interference detection, an ISM communication step with a local alarm center which manages the alarm system and which supports managing the intrusion;- upon detection of a radio interference without intrusion detection, a step of transmitting the interference information to a remote telemonitoring center by LPWAN unidirectional connection;- upon detection of an intrusion and a radio interference, a step of transmitting the intrusion and interference information to a remote telemonitoring center by LPWAN unidirectional connection and starting-up the deterrent device directly by the detection device.
- The method according to claim 10, for which the detection of a radio interference includes a time delay adapted to filter the spurious interferences.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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FR1760092A FR3073070B1 (en) | 2017-10-26 | 2017-10-26 | DETECTION AND ALERT DEVICE FOR ALARM SYSTEM AND ALARM SYSTEM COMPRISING IT |
Publications (2)
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EP3477611A1 EP3477611A1 (en) | 2019-05-01 |
EP3477611B1 true EP3477611B1 (en) | 2021-07-14 |
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EP18202689.8A Active EP3477611B1 (en) | 2017-10-26 | 2018-10-25 | Detection and alert device for alarm system and alarm system comprising same |
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EP (1) | EP3477611B1 (en) |
ES (1) | ES2894274T3 (en) |
FR (1) | FR3073070B1 (en) |
PT (1) | PT3477611T (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3137785A1 (en) | 2022-07-05 | 2024-01-12 | Telecom Design | Device for detecting jamming and transmitting an alarm on a scrambled NB-IoT network |
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US20220393785A1 (en) * | 2021-06-08 | 2022-12-08 | Arlo Technologies, Inc. | Radio Frequency Jamming or Interference Detection and Mitigation in an Electronic Monitoring System |
Family Cites Families (4)
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FR2700873B1 (en) * | 1993-01-26 | 1995-04-07 | Edouard Bouquin Paul | Anti-jamming radio anti-jamming device for intrusion monitoring systems. |
GB2457102A (en) * | 2008-02-04 | 2009-08-05 | George Schaar | Wireless intruder alarm with pressure sensor within double glazing unit |
US10127797B2 (en) * | 2015-02-17 | 2018-11-13 | Honeywell International Inc. | Alternative inexpensive cloud-based mass market alarm system with alarm monitoring and reporting |
EP3091519B1 (en) * | 2015-05-08 | 2019-07-24 | Verisure Sàrl | Jamming detection method and device |
-
2017
- 2017-10-26 FR FR1760092A patent/FR3073070B1/en active Active
-
2018
- 2018-10-25 PT PT182026898T patent/PT3477611T/en unknown
- 2018-10-25 EP EP18202689.8A patent/EP3477611B1/en active Active
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Publication number | Priority date | Publication date | Assignee | Title |
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FR3137785A1 (en) | 2022-07-05 | 2024-01-12 | Telecom Design | Device for detecting jamming and transmitting an alarm on a scrambled NB-IoT network |
Also Published As
Publication number | Publication date |
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PT3477611T (en) | 2021-10-19 |
ES2894274T3 (en) | 2022-02-14 |
EP3477611A1 (en) | 2019-05-01 |
FR3073070A1 (en) | 2019-05-03 |
FR3073070B1 (en) | 2023-05-05 |
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