WO2017072559A1 - Alarm system and alarm transmitter - Google Patents

Alarm system and alarm transmitter Download PDF

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Publication number
WO2017072559A1
WO2017072559A1 PCT/IB2015/058401 IB2015058401W WO2017072559A1 WO 2017072559 A1 WO2017072559 A1 WO 2017072559A1 IB 2015058401 W IB2015058401 W IB 2015058401W WO 2017072559 A1 WO2017072559 A1 WO 2017072559A1
Authority
WO
WIPO (PCT)
Prior art keywords
alarm
transmitters
transmitter
messages
monitoring station
Prior art date
Application number
PCT/IB2015/058401
Other languages
French (fr)
Inventor
Krzysztof Stalewski
Piotr Stanislaw RESZCZYK
Original Assignee
Ebs Sp. Z O.O.
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 Ebs Sp. Z O.O. filed Critical Ebs Sp. Z O.O.
Priority to PCT/IB2015/058401 priority Critical patent/WO2017072559A1/en
Publication of WO2017072559A1 publication Critical patent/WO2017072559A1/en

Links

Classifications

    • 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
    • G08B25/009—Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
    • 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
    • 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
    • H04K3/222—Countermeasures against jamming including jamming detection and monitoring wherein jamming detection includes detecting the absence or impossibility of intelligible communication on at least one channel
    • 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
    • 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
    • G08B25/004—Alarm propagated along alternative communication path or using alternative communication medium according to a hierarchy of available ways to communicate, e.g. if Wi-Fi not available use GSM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K2203/00—Jamming of communication; Countermeasures
    • H04K2203/30—Jamming or countermeasure characterized by the infrastructure components
    • H04K2203/32—Jamming or countermeasure characterized by the infrastructure components including a particular configuration of antennas

Definitions

  • the subject of the invention is an alarm system and an alarm transmitter used in security systems for properties, buildings or open areas.
  • the invention is applied in security, monitoring and surveillance systems using radio communication.
  • Prior art knows alarm systems using radio communication, in particular groups of alarm sensors and transmitters interoperating with a base station.
  • Known systems use the architecture consisting of small alarm sensors and transmitters communicating with a central base station responsible for connection with a remote alarm centre, which monitors a number of such locations and is responsible for taking appropriate action in the event of an alarm signal received from any of them, e.g. for sending an intervention patrol to a given area.
  • the publication EP2581891A2 discloses a wireless alarm device network comprising a group of alarm devices, each having a processor, a wireless communication interface and a condition sensor. According to prior art, these devices communicate with one another wirelessly by sending messages, and in a learning mode, in a monitored cluster of devices, automatically register signal strengths from individual devices. A device recognises another device as being in the same cluster if the strength of the received signal exceeds the adopted threshold value. Each device is able to monitor other devices in its cluster and to generate an alarm if any device in its cluster stops sending messages. In the solution according to prior art, the devices in a given cluster either generate alarms (indicating abnormal cluster condition by activating warning devices) or send signals to the monitoring device responsible for communication with the outside world, e.g. a remote dispatch centre.
  • a cluster of alarm devices is vulnerable to an attack that targets a monitoring device collecting signals from alarm devices.
  • the essence of the invention is an alarm system comprising a group of alarm transmitters equipped with multi-channel communication modules and alarm sensors, characterised in that the alarm transmitters are connected so as to send alarm messages to a remote monitoring station and to the other alarm transmitters.
  • the transmitters are adapted to transmit alarm messages to the monitoring station and/or to the other transmitters in the event of detecting an initialising signal from the alarm sensors, and the transmitters are adapted to transmit alarm messages to the monitoring station either directly or through other alarm transmitters in the event of loss of a direct connection with the monitoring station or another transmitter in at least one of the communication channels.
  • the system is further characterised in that the alarm transmitters are equipped with communication modules from a group of modules supporting GSM, GPRS, ETH, PSTN technologies, wherein the communication modules communicate via TCP/IP, text messages (SMS) or messages sent in the sound channel within the PSTN network.
  • the alarm transmitters are equipped with communication modules from a group of modules supporting GSM, GPRS, ETH, PSTN technologies, wherein the communication modules communicate via TCP/IP, text messages (SMS) or messages sent in the sound channel within the PSTN network.
  • the system is characterised in that the alarm transmitters are equipped with double communication channels, in particular using a set of two antennas placed at different locations.
  • the system is characterised in that each transmitter is further equipped with a dedicated radio communication module for communication with other alarm transmitters.
  • the essence of the invention is an alarm transmitter equipped with multi-channel communication modules and alarm sensors, characterised in that the multi-channel communication module enables sending alarm messages to the remote monitoring station and to the other alarm transmitters.
  • the multi-channel communication module makes it possible to send alarm messages to the monitoring station and/or to the other transmitters in the event of detecting an initialising signal from the alarm sensors, and the multi-channel communication module makes it possible to send alarm messages to the monitoring station either directly or through other alarm transmitters in the event of loss of a direct connection with the control panel or another transmitter in at least one of the communication channels.
  • the transmitter is characterised in that it is equipped with a communication module from a group of modules supporting GSM, GPRS, ETH, PSTN technologies, wherein the communication modules communicate via TCP/IP, text messages (SMS) or messages sent in the sound channel within the PSTN network.
  • a communication module from a group of modules supporting GSM, GPRS, ETH, PSTN technologies, wherein the communication modules communicate via TCP/IP, text messages (SMS) or messages sent in the sound channel within the PSTN network.
  • the transmitter is characterised in that it is equipped with double communication channels, in particular using a set of two antennas placed at different locations.
  • the transmitter is characterised in that it is further equipped with a dedicated radio communication module for communication with other alarm transmitters.
  • Both the entire system and its transmitters according to the invention are characterised by high resistance to interference and low susceptibility to attacks from the outside because, in order to effectively block the ability to send alarm signals to the remote dispatch centre, all communication channels in all transmitters within the system according to the invention would have to be blocked, which would be extremely difficult in the case of transmitters scattered across a considerable area.
  • Fig. 1 illustrates an alarm system according to an advantageous embodiment of the invention, consisting of three alarm transmitters according to the invention
  • Fig. 2 illustrates an alarm system according to an advantageous embodiment of the invention during an attack from the outside.
  • Fig. 1 illustrates a system according to an advantageous embodiment of the invention, consisting of three alarm transmitters 10, 11 , 12 connected together to form the alarm system 1.
  • the alarm transmitters preferably use all available communication channels to transmit messages to the remote dispatch centre 300.
  • Transmitters 10, 11 , 12 according to the invention use a GPRS, GSM, LTE wireless communication mode and an ETH, PSTN wired communication mode.
  • the transmitters 10, 11 , 12 also communicate with one another through a dedicated radio channel.
  • the alarm transmitters 10, 11 , 12 communicate with a remote dispatch centre 300 via TCP/IP using an Ethernet connection, via TCP/IP using GPRS, text messages (SMS) or using the public PSTN network.
  • the transmitter uses the priority logic of each channel and selects the fastest/most reliable route of transmission at a given time.
  • the communication with the monitoring station may be double encrypted, with the identifying key being sent through a transmission channel other than the one used to transmit data.
  • the alarm transmitter comprises a multi-antenna module and two SIM cards, using two antennas in the event of a failure/jamming of one of them and offering a possibility of using two SIM cards should the zero credit balance be reached for data transmission or should the card be unexpectedly deactivated by the network operator.
  • the first alarm transmitter 10 is equipped with a sensor 101
  • the second alarm transmitter 11 is equipped with a sensor 111
  • the third alarm transmitter 12 is equipped with a sensor 121.
  • Alarm sensors may be any known sensors dedicated to security systems, including among others motion detectors, temperature change detectors, ultrasound sensors, etc.
  • the sensors connected to the alarm transmitters 10, 11 , 12 may be smoke detectors or detectors used to detect harmful substances or gases, condition sensors, level sensors, etc.
  • each of the alarm transmitters 10, 11, 12 forming the alarm system 1 together with the other transmitters has the ability to transmit an alarm message to the monitoring station 300 and to the other emergency transmitters forming the system.
  • An alarm signal may be generated based on the analysis of a signal from a sensor connected to a given alarm transmitter or based on a message received from another transmitter, or in the case of interrupted connection with another associated alarm transmitter.
  • An advantageous feature of the system is its modularity and multi-channel communication between the system 1 and the monitoring station 300.
  • a single monitoring station may handle a number of alarm systems and it may be placed in any location unknown to the system users.
  • Expansion of the system by adding another transmitter 10, 11 , 12 according to the invention results in higher security and provides additional communication channels between the system 1 and the dispatch centre 300.
  • the arrangement of alarm transmitters over a large area also raises the system resistance to attacks from the outside, aimed at deactivating the system.
  • the alarm transmitters according to the invention 10, 11 , 12 preferably have at least two independent channels for mobile communication with a mobile network represented in the figure by groups of base stations 40, 41 , 42, 43, preferably belonging to independent operators. Furthermore, the transmitters 10, 11 , 12 may establish a direct connection via a local Ethernet infrastructure 200 and Ethernet cable lines 201 or alternatively via a Wi-Fi network (not shown) and via a local telephone infrastructure comprising a PBX 210 and cable connections 211. Furthermore, it is advantageous if the transmitters 10, 11 , 12 are equipped with dedicated radio communication lines 30, 31 , 32, which maintain the ability to exchange alarm messages should other communication channels be disrupted.
  • Fig. 2 shows a situation in which the system 1 is under attack.
  • the attackers have cut the communication lines 20 and 21 and jammed the mobile network using a transmitter 540.
  • the jamming range is presented in fig. 2 as dotted circles.
  • the alarm transmitter 12 is beyond the range of the jamming transmitter 540, so even if the cable connection channels 20, 21 are cut off, the transmitter is able to send an alarm message to the dispatch centre by communicating with the mobile network base station 42 working in its location.
  • the system according to the invention may preferably communicate with more than one dispatch centre placed in a different location than the first dispatch centre. Communication between each of the transmitters 10, 11 , 12 and the dispatch centre is implemented across multiple channels, thus providing resistance to external factors, including an attack aimed at cutting the system 1 off from the dispatch centre.
  • the system 1 and the multi-channel alarm transmitter 10, 11 , 12 form a solution that ensures a high degree of protection for a building by making the attack very difficult and requiring the attackers to use considerable technical measures which are supposed to discourage attacks and attempts at penetrating the building.
  • monitoring station receiver for connection with a GPRS, GSM, LTE mobile network

Abstract

An alarm system comprising a group of alarm transmitters equipped with multi-channel communication modules and alarm sensors, characterised in that the alarm transmitters are connected so as to send alarm messages to a remote monitoring station and to the other alarm transmitters, wherein the transmitters are adapted to sending alarm messages to the monitoring station and/or to the other transmitters in the event of detecting an initialising signal from the alarm sensors, and the transmitters are adapted to sending alarm messages to the monitoring station either directly or through other alarm transmitters in the event of loss of a direct connection with the monitoring station or another transmitter in at least one of the communication channels.

Description

ALARM SYSTEM AND ALARM TRANSMITTER
The subject of the invention is an alarm system and an alarm transmitter used in security systems for properties, buildings or open areas.
The invention is applied in security, monitoring and surveillance systems using radio communication.
Prior art knows alarm systems using radio communication, in particular groups of alarm sensors and transmitters interoperating with a base station. Known systems use the architecture consisting of small alarm sensors and transmitters communicating with a central base station responsible for connection with a remote alarm centre, which monitors a number of such locations and is responsible for taking appropriate action in the event of an alarm signal received from any of them, e.g. for sending an intervention patrol to a given area.
The primary purpose of such alarm systems is to supervise the largest area possible. To this end, a network of scattered sensors is used, distributed in such a way as to ensure coverage of either all or key areas of a given location.
Systems with a central base station responsible for communication with an alarm centre are susceptible to all sorts of activities aimed at their deactivation.
The publication EP2581891A2 discloses a wireless alarm device network comprising a group of alarm devices, each having a processor, a wireless communication interface and a condition sensor. According to prior art, these devices communicate with one another wirelessly by sending messages, and in a learning mode, in a monitored cluster of devices, automatically register signal strengths from individual devices. A device recognises another device as being in the same cluster if the strength of the received signal exceeds the adopted threshold value. Each device is able to monitor other devices in its cluster and to generate an alarm if any device in its cluster stops sending messages. In the solution according to prior art, the devices in a given cluster either generate alarms (indicating abnormal cluster condition by activating warning devices) or send signals to the monitoring device responsible for communication with the outside world, e.g. a remote dispatch centre.
A cluster of alarm devices is vulnerable to an attack that targets a monitoring device collecting signals from alarm devices. The essence of the invention is an alarm system comprising a group of alarm transmitters equipped with multi-channel communication modules and alarm sensors, characterised in that the alarm transmitters are connected so as to send alarm messages to a remote monitoring station and to the other alarm transmitters. The transmitters are adapted to transmit alarm messages to the monitoring station and/or to the other transmitters in the event of detecting an initialising signal from the alarm sensors, and the transmitters are adapted to transmit alarm messages to the monitoring station either directly or through other alarm transmitters in the event of loss of a direct connection with the monitoring station or another transmitter in at least one of the communication channels.
According to the invention, the system is further characterised in that the alarm transmitters are equipped with communication modules from a group of modules supporting GSM, GPRS, ETH, PSTN technologies, wherein the communication modules communicate via TCP/IP, text messages (SMS) or messages sent in the sound channel within the PSTN network.
According to the invention, the system is characterised in that the alarm transmitters are equipped with double communication channels, in particular using a set of two antennas placed at different locations. According to the invention, the system is characterised in that each transmitter is further equipped with a dedicated radio communication module for communication with other alarm transmitters.
Furthermore, the essence of the invention is an alarm transmitter equipped with multi-channel communication modules and alarm sensors, characterised in that the multi-channel communication module enables sending alarm messages to the remote monitoring station and to the other alarm transmitters. The multi-channel communication module makes it possible to send alarm messages to the monitoring station and/or to the other transmitters in the event of detecting an initialising signal from the alarm sensors, and the multi-channel communication module makes it possible to send alarm messages to the monitoring station either directly or through other alarm transmitters in the event of loss of a direct connection with the control panel or another transmitter in at least one of the communication channels. According to the invention, the transmitter is characterised in that it is equipped with a communication module from a group of modules supporting GSM, GPRS, ETH, PSTN technologies, wherein the communication modules communicate via TCP/IP, text messages (SMS) or messages sent in the sound channel within the PSTN network.
According to the invention, the transmitter is characterised in that it is equipped with double communication channels, in particular using a set of two antennas placed at different locations.
According to the invention, the transmitter is characterised in that it is further equipped with a dedicated radio communication module for communication with other alarm transmitters.
Both the entire system and its transmitters according to the invention are characterised by high resistance to interference and low susceptibility to attacks from the outside because, in order to effectively block the ability to send alarm signals to the remote dispatch centre, all communication channels in all transmitters within the system according to the invention would have to be blocked, which would be extremely difficult in the case of transmitters scattered across a considerable area.
The subject of the invention has been shown in greater detail in an advantageous embodiment in the drawing in which:
Fig. 1 illustrates an alarm system according to an advantageous embodiment of the invention, consisting of three alarm transmitters according to the invention; Fig. 2 illustrates an alarm system according to an advantageous embodiment of the invention during an attack from the outside.
Fig. 1 illustrates a system according to an advantageous embodiment of the invention, consisting of three alarm transmitters 10, 11 , 12 connected together to form the alarm system 1. The alarm transmitters preferably use all available communication channels to transmit messages to the remote dispatch centre 300. Transmitters 10, 11 , 12 according to the invention use a GPRS, GSM, LTE wireless communication mode and an ETH, PSTN wired communication mode. Preferably, the transmitters 10, 11 , 12 also communicate with one another through a dedicated radio channel.
The alarm transmitters 10, 11 , 12 communicate with a remote dispatch centre 300 via TCP/IP using an Ethernet connection, via TCP/IP using GPRS, text messages (SMS) or using the public PSTN network. The transmitter uses the priority logic of each channel and selects the fastest/most reliable route of transmission at a given time. The communication with the monitoring station may be double encrypted, with the identifying key being sent through a transmission channel other than the one used to transmit data.
Preferably, the alarm transmitter comprises a multi-antenna module and two SIM cards, using two antennas in the event of a failure/jamming of one of them and offering a possibility of using two SIM cards should the zero credit balance be reached for data transmission or should the card be unexpectedly deactivated by the network operator.
In the system according to the invention shown in fig. 1 , the first alarm transmitter 10 is equipped with a sensor 101 , the second alarm transmitter 11 is equipped with a sensor 111 , and the third alarm transmitter 12 is equipped with a sensor 121. Alarm sensors may be any known sensors dedicated to security systems, including among others motion detectors, temperature change detectors, ultrasound sensors, etc. Furthermore, the sensors connected to the alarm transmitters 10, 11 , 12 may be smoke detectors or detectors used to detect harmful substances or gases, condition sensors, level sensors, etc.
In the alarm system 1 , each of the alarm transmitters 10, 11, 12 forming the alarm system 1 together with the other transmitters has the ability to transmit an alarm message to the monitoring station 300 and to the other emergency transmitters forming the system. An alarm signal may be generated based on the analysis of a signal from a sensor connected to a given alarm transmitter or based on a message received from another transmitter, or in the case of interrupted connection with another associated alarm transmitter.
An advantageous feature of the system is its modularity and multi-channel communication between the system 1 and the monitoring station 300. A single monitoring station may handle a number of alarm systems and it may be placed in any location unknown to the system users.
Expansion of the system by adding another transmitter 10, 11 , 12 according to the invention results in higher security and provides additional communication channels between the system 1 and the dispatch centre 300. The arrangement of alarm transmitters over a large area also raises the system resistance to attacks from the outside, aimed at deactivating the system.
The alarm transmitters according to the invention 10, 11 , 12 preferably have at least two independent channels for mobile communication with a mobile network represented in the figure by groups of base stations 40, 41 , 42, 43, preferably belonging to independent operators. Furthermore, the transmitters 10, 11 , 12 may establish a direct connection via a local Ethernet infrastructure 200 and Ethernet cable lines 201 or alternatively via a Wi-Fi network (not shown) and via a local telephone infrastructure comprising a PBX 210 and cable connections 211. Furthermore, it is advantageous if the transmitters 10, 11 , 12 are equipped with dedicated radio communication lines 30, 31 , 32, which maintain the ability to exchange alarm messages should other communication channels be disrupted.
Fig. 2 shows a situation in which the system 1 is under attack. The attackers have cut the communication lines 20 and 21 and jammed the mobile network using a transmitter 540. The jamming range is presented in fig. 2 as dotted circles.
In the case shown in fig. 2, the alarm transmitter 12 is beyond the range of the jamming transmitter 540, so even if the cable connection channels 20, 21 are cut off, the transmitter is able to send an alarm message to the dispatch centre by communicating with the mobile network base station 42 working in its location.
The system according to the invention may preferably communicate with more than one dispatch centre placed in a different location than the first dispatch centre. Communication between each of the transmitters 10, 11 , 12 and the dispatch centre is implemented across multiple channels, thus providing resistance to external factors, including an attack aimed at cutting the system 1 off from the dispatch centre.
The system 1 and the multi-channel alarm transmitter 10, 11 , 12 form a solution that ensures a high degree of protection for a building by making the attack very difficult and requiring the attackers to use considerable technical measures which are supposed to discourage attacks and attempts at penetrating the building.
List of designations
I alarm system
10 first alarm transmitter
I I second alarm transmitter
12 third alarm transmitter
101 sensor of the first alarm transmitter
I I I sensor of the second alarm transmitter
121 sensor of the third alarm transmitter
20 external Ethernet communication line
21 external PTSN telephone line
200 Ethernet network infrastructure devices
210 PSTN telephone infrastructure devices
201 internal Ethernet communication line
211 internal PTSN telephone line
30 dedicated radio connection between the first and the second alarm transmitter
31 dedicated radio connection between the second and the third alarm transmitter
32 dedicated radio connection between the first and the third alarm transmitter
300 monitoring station
310 monitoring station receiver for connection with a GPRS, GSM, LTE mobile network
40, 41 , 42, 43 GPRS, GSM, LTE mobile network base stations
520 interference in the infrastructure that causes interrupted communication via Ethernet
521 interference in the infrastructure that causes interrupted communication via the PSTN telephone line
540 transmitter jamming the GPRS, GSM, LTE mobile network

Claims

Claims
1. An alarm system comprising:
a group of alarm transmitters (10, 11 , 12) equipped with multi-channel communication modules and alarm sensors (101 , 111 , 121);
characterised in that
the alarm transmitters (10, 11 , 12) are connected so as to transmit alarm messages to the remote monitoring station (300) and to the other alarm transmitters (10, 11 , 12), wherein
the transmitters (10, 11 , 12) are adapted to transmit alarm messages to the monitoring station (300) and/or to the other alarm transmitters (10, 11 , 12) in the event of detecting an initialising signal from the alarm sensors (101 , 111 , 121), and
the transmitters (10, 11 , 12) are adapted to sending alarm messages to the monitoring station (300) either directly or through other alarm transmitters (10, 11 , 12) in the event of loss of a direct connection with the monitoring station (300) or another transmitter (10, 11 , 12) in at least one of the communication channels.
2. The system as claimed in claim 1 , characterised in that the alarm transmitters (10, 11 , 12) are equipped with communication modules from a group of modules supporting GSM, GPRS, ETH, PSTN technologies, wherein the communication modules communicate via TCP/IP, text messages (SMS) or messages sent in the sound channel within the PSTN network.
3. The system as claimed in claim 1 or 2, characterised in that the alarm transmitters (10, 11 , 12) are equipped with double communication channels, in particular using a set of two antennas placed at different locations.
4. The system as claimed in any of the claims from 1 to 3, characterised in that each transmitter (10, 11 , 12) is further equipped with a dedicated radio communication module for communication with other alarm transmitters.
5. The alarm transmitter (10, 11 , 12) equipped with multi-channel communication modules and alarm sensors (101 , 111 , 121);
characterised in that
the multi-channel communication module enables sending alarm messages to the remote monitoring station (300) and to the other alarm transmitters (10, 11 , 12), wherein the multi-channel communication module allows sending alarm messages to the monitoring station (300) and/or to the other alarm transmitters (10, 11 , 12) in the event of detecting an initialising signal from the alarm sensors (101 , 111 , 121), and the multi-channel communication module allows sending alarm messages to the monitoring station (300) either directly or through other alarm transmitters (10, 11 , 12) in the event of loss of a direct connection with the monitoring station (300) or another alarm transmitter (10, 11 , 12) in at least one of the communication channels.
6. The transmitter as claimed in claim 5, characterised in that it is equipped with a communication module from a group of modules supporting GSM, GPRS, ETH, PSTN technologies, wherein the communication modules communicate via TCP/IP, text messages (SMS) or messages sent in the sound channel within the PSTN network.
7. The transmitter as claimed in claim 5 or 6, characterised in that it is equipped with double communication channels, in particular using a set of two antennas placed at different locations.
8. The transmitter as claimed in any of the claims from 5 to 7, characterised in that it is further equipped with a dedicated radio communication module for communication with other alarm transmitters.
PCT/IB2015/058401 2015-10-30 2015-10-30 Alarm system and alarm transmitter WO2017072559A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2015/058401 WO2017072559A1 (en) 2015-10-30 2015-10-30 Alarm system and alarm transmitter

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Application Number Priority Date Filing Date Title
PCT/IB2015/058401 WO2017072559A1 (en) 2015-10-30 2015-10-30 Alarm system and alarm transmitter

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Publication Number Publication Date
WO2017072559A1 true WO2017072559A1 (en) 2017-05-04

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19539312A1 (en) * 1995-10-23 1997-04-24 Grundig Emv Procedure for increasing the transmission security in radio alarm systems
WO2008004251A2 (en) * 2006-07-03 2008-01-10 Tanla Solutions Limited Home security system using an ad-hoc wireless mesh and method thereof
US20130033377A1 (en) * 2010-04-16 2013-02-07 Winrich Hoseit Fire detector for monitoring a room by means of a combination of smoke density measurement and temperature measurement
EP2581891A2 (en) 2011-10-12 2013-04-17 E.I. Technology Limited A low current RF alarm device mesh network

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19539312A1 (en) * 1995-10-23 1997-04-24 Grundig Emv Procedure for increasing the transmission security in radio alarm systems
WO2008004251A2 (en) * 2006-07-03 2008-01-10 Tanla Solutions Limited Home security system using an ad-hoc wireless mesh and method thereof
US20130033377A1 (en) * 2010-04-16 2013-02-07 Winrich Hoseit Fire detector for monitoring a room by means of a combination of smoke density measurement and temperature measurement
EP2581891A2 (en) 2011-10-12 2013-04-17 E.I. Technology Limited A low current RF alarm device mesh network

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