WO2012025517A1 - Réseau de sécurité, système de réseau de sécurité et procédé d'envoi de signaux d'avertissement d'alarme dans un réseau de sécurité - Google Patents

Réseau de sécurité, système de réseau de sécurité et procédé d'envoi de signaux d'avertissement d'alarme dans un réseau de sécurité Download PDF

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Publication number
WO2012025517A1
WO2012025517A1 PCT/EP2011/064446 EP2011064446W WO2012025517A1 WO 2012025517 A1 WO2012025517 A1 WO 2012025517A1 EP 2011064446 W EP2011064446 W EP 2011064446W WO 2012025517 A1 WO2012025517 A1 WO 2012025517A1
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WO
WIPO (PCT)
Prior art keywords
alarm
network
alarm system
message
security
Prior art date
Application number
PCT/EP2011/064446
Other languages
English (en)
Inventor
Kim Enevoldsen
Original Assignee
Makisa Holding Aps
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 Makisa Holding Aps filed Critical Makisa Holding Aps
Publication of WO2012025517A1 publication Critical patent/WO2012025517A1/fr

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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
    • 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
    • G08B25/003—Address allocation methods and details
    • 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
    • G08B25/007—Details of data content structure of message packets; data protocols
    • 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

Definitions

  • the present invention relates to a security network and a method of forwarding alarm warning signals in a security network, and more particularly to a security network having a number of alarm systems located at different locations and communicating with each other.
  • the invention also relates to a security network system comprising several security networks.
  • Alarm sensors generating a warning signal in an abnormal situation such as the occurrence of a burglary, a fire, etc... are positioned in private houses, apartments, offices, etc... .
  • the warning signal contains information defining both the nature and the location of the abnormal situation.
  • the known sensors may be directly linked to one telephone to reach a security company. Wth such known alarm systems the respond time from an alarm sensor generates a warning signal to a representative for the security company reaches the location of the alarm system can be quite long.
  • the warning signal generated by the alarm sensor may not reach the security company.
  • a security network may be used as a neighbor security network.
  • a security network comprising four or more alarm systems being located at different locations, wherein each alarm system comprises security control circuitry being operatively coupled to communication circuitry, and wherein the alarm systems are communicatively networked with each other through signalling via said communication circuitries to form a security network in which the alarm systems communicates with each other.
  • the alarm systems being networked together may communicate directly with each other by transmitting a message simultaneously from a transmitting alarm system to the remaining alarm systems of the network.
  • a message may be broadcasted or transmitted directly from a transmitting alarm system to the remaining alarm systems of the network.
  • alarm systems being networked together are connected in a ring network, and one or more messages may be forwarded from one alarm system to another in the ring network, such as a token or token like message in a token like ring network.
  • the alarm systems are communicatively networked with each other through a computer network such as the Internet.
  • the alarm systems may be communicatively networked by peer- to-peer networking.
  • the communication circuitry comprises wireless communication circuitry
  • the alarm systems are
  • communication may comprise broadcasting of messages between alarm systems of a network.
  • each alarm system of a network has a unique unit identifier, unitJD, and wherein each alarm system of the network stores the unit identifiers of all the alarm systems of the network.
  • the control and communication circuitry is arranged for transmitting messages and/or status messages to the other alarm systems of the network and for receiving messages and/or status messages transmitted from the other alarm systems.
  • transmitted messages may hold information identifying the alarm system transmitting the message.
  • the control and communication circuitry of the alarm systems are arranged for transmitting the status messages frequently and/or regularly.
  • the status messages may be transmitted regularly within predetermined time intervals.
  • the control circuitry keeps a status record for each of the other alarm systems of the network, each said status record holding information regarding status messages received from the corresponding alarm system of the network.
  • each alarm system of the network may have a unique unit identifier, unitJD, and each status record may store the unit identifier of the corresponding alarm system.
  • the status record further includes the unit identifier of the alarm system itself.
  • control circuit for each alarm system of the network, is arranged for issuing a warning signal via the communication circuitry to the other alarm systems of the network when a status message has not been received within a predetermined period of time from an alarm system being part of the security network.
  • the alarm system further comprises one or more alarm devices for raising an alarm, said alarm devices being coupled to or communicating with the control circuitry of the alarm system.
  • the control circuitry of an alarm system having alarm devices may be arranged for forwarding an activation signal to one or more of the alarm devices of the alarm system upon issuing the warning signal.
  • the alarm system further comprises one or more alarm triggering devices communicatively coupled to the control circuitry of the alarm system.
  • the alarm triggering device(s) may be communicating with the control circuitry by wireless communication.
  • the alarm triggering device(s) may comprise one or more alarm sensors and/or a panic button/device.
  • the control circuitry of said alarm system when an alarm triggering device of an alarm system is triggered, the control circuitry of said alarm system is activated to transmit a warning signal via the communication circuitry to the other alarm systems of the network. It is preferred that when an alarm triggering device of an alarm system is triggered, the control circuitry of said alarm system is activated to forward an activation signal to one or more of the alarm devices of said alarm system.
  • control circuitry for each of the alarm systems of the network, the control circuitry is activated to forward an activation signal to one or more of the alarm devices of the alarm system, when said alarm system receives a warning signal from another alarm system of the network.
  • a method of networking four or more alarm systems to form a security network wherein the alarm systems are located at different locations within communication range with each other and each alarm system comprises security control circuitry being operatively coupled to communication circuitry, wherein the alarm systems are communicatively networked with each other through signalling via said communication circuitries to communicate directly with each other, and wherein for each alarm system of the network, the control and communication circuitry is arranged for transmitting status messages to the other alarm systems of the network and for receiving status messages transmitted from the other alarm systems, said method comprising:
  • the alarm systems are located at different locations within communication range with each other and each alarm system comprises security control circuitry being operatively coupled to communication circuitry, wherein the alarm systems are communicatively networked with each other through signalling via said communication circuitries to communicate with each other, and wherein for each alarm system of the network, the control and communication circuitry is arranged for transmitting status messages to the other alarm systems of the network and for receiving status messages transmitted from the other alarm systems, said method comprising:
  • the methods of the first aspect of the invention further comprises the step of:
  • the communication circuitry comprises wireless communication circuitry, and that the alarm systems are communicatively networked with each through wireless communication.
  • communication may comprise broadcasting of messages between alarm systems of a network.
  • a message may be broadcasted or transmitted directly from a transmitting alarm system to the remaining alarm systems of the network.
  • the alarm systems may also be networked together in a ring or token like network, and a message may be and one or more messages may be forwarded from one alarm system to another in the ring network, such as a token or token like message.
  • each alarm system of the network keeps a status record for each of the other alarm systems of the network, each said status record holding information regarding status messages received from the corresponding alarm system of the network.
  • each alarm system of the network may have a unique unit identifier, unitJD, and each status record may store the unit identifier of the corresponding alarm system.
  • the alarm system further comprises one or more alarm devices for raising an alarm, said alarm devices being coupled to or communicating with the control circuitry of the alarm system.
  • the control circuitry of the detecting alarm system may forward an activation signal to one or more of the alarm devices of said detecting alarm system when a warning signal is transmitted.
  • control circuitry forwards an activation signal to one or more of the alarm devices of the alarm system, when said alarm system receives a warning signal from another alarm system of the network.
  • the alarm system further comprises one or more alarm triggering devices communicatively coupled to the control circuitry of the alarm system.
  • the alarm triggering device(s) may be communicating with the control circuitry by wireless communication.
  • the alarm triggering device(s) may comprise one or more alarm sensors and/or a panic button/device. It is preferred that when an alarm triggering device of an alarm system is triggered, the control circuitry of said alarm system transmits a warning signal via the communication circuitry to the other alarm systems of the network. It is also preferred that when an alarm triggering device of an alarm system is triggered, the control circuitry of said alarm system forwards an activation signal to one or more of the alarm devices of said alarm system.
  • a security network system comprising at least two wireless security networks, wherein each network comprises two or more alarm systems being located at different locations, wherein each security network is uniquely identified, and wherein all alarm system of a selected security network are communicatively networked with each other through wireless communication. It is preferred that each alarm system of each network holds information identifying the network to which the alarm system is part of, and it is preferred that
  • each security network has a unique network identifier.
  • part of or all the security networks communicate within different wireless transmission frequencies, with the transmission frequency of a security network thereby uniquely identifying the security network.
  • part of or all the security networks communicate within the same wireless transmission frequency, and a security network is identified by a unique network identifier being stored in the alarm systems being part of the security network.
  • a security network is identified by a unique network identifier being stored in the alarm systems being part of the security network.
  • each alarm system has a unique unit identifier, and that each alarm system of a security network stores the unit identifiers of all the alarm systems being part of said network.
  • each alarm system of a network comprises security control circuitry being operatively coupled to wireless communication circuitry, and that the alarm systems being part of the same security network are communicatively networked with each other through signalling via said wireless communication circuitries to form a security network in which the alarm systems communicates directly with each other two by two.
  • each security network comprises four or more alarm systems.
  • the alarm systems being networked together
  • alarm systems of the same network communicates directly with each other by transmitting a message simultaneously from the transmitting alarm system to the remaining alarm systems of the network. It is preferred that alarm systems being networked together are also connected in a ring network. It is also preferred that a message is broadcasted or transmitted directly from a transmitting alarm system to the remaining alarm systems of the network. Thus, communication between alarm systems of the same network may comprise
  • broadcasting of messages between the alarm systems of the network may also comprise forwarding of a ring or token like message from one alarm system to another.
  • control and communication circuitry of an alarm system of a network is arranged for transmitting messages and/or status messages to the other alarm systems being part of the same network and for receiving messages and/or status messages transmitted from these other alarm systems.
  • transmitted messages may hold information identifying the network to which the transmitting alarm system is part of, and transmitted messages may hold information identifying the alarm system transmitting the message.
  • the status messages may be transmitted frequently and/or regularly, and the status messages may be transmitted regularly within predetermined time intervals.
  • the control circuitry keeps a status record for each of the other alarm systems of the network, each said status record holding information regarding status messages received from the corresponding alarm system of the network.
  • each status record may store the unit identifier of the corresponding alarm system.
  • the status record further includes the unit identifier of the alarm system itself. It is also preferred that for each alarm system, the status record further includes information regarding the unique network identifier of the network to which the alarm system belongs.
  • control circuit of an alarm system issues a warning signal via the communication circuitry to the other alarm systems being part of the same network when a status message has not been received from an alarm system being part of the network within a predetermined period of time.
  • one or more alarm systems of network further comprise one or more alarm devices for raising an alarm, said alarm devices being coupled to or communicating with the control circuitry of said alarm system. It is preferred that the control circuitry of the alarm system forwards an activation signal to one or more of the alarm devices of the alarm system upon issuing the warning signal. It is also within embodiments of the second aspect of the invention that one or more alarm systems of a network further comprise one or more alarm triggering devices communicatively coupled to the control circuitry of the alarm system.
  • the alarm triggering device(s) may be communicating with the control circuitry by wireless communication.
  • the alarm triggering device(s) may comprise one or more alarm sensors and/or a panic button/device.
  • the control circuitry of said alarm system may be activated to transmit a warning signal via the communication circuitry to the other alarm systems being part of the same network.
  • the control circuitry of said alarm system may be activated to forward an activation signal to one or more of the alarm devices of the alarm system.
  • the control circuitry of the receiving alarm system is activated to forward an activation signal to one or more of the alarm devices of the receiving alarm system.
  • At least one selected alarm system comprises circuitry for determining active security networks being within communication range of said alarm system.
  • the selected alarm system having circuitry for determining networks being within communication range is adapted for communicating through wireless communication with alarm systems being part of a security network being within range.
  • the alarm systems being part of a security network may be identified by unit identifiers stored by an alarm system of said network and communicated to the selected alarm system.
  • the alarm system having circuitry for determining networks being in communication range comprises a user interface outputting or displaying the security networks being in range, and further comprises circuitry for selecting one of said security networks being within range based on a user input.
  • the wireless security networks being part of the security network systems of the second aspect of the invention are selected from the wireless security networks according to the first aspect of the invention.
  • a third aspect of the invention there is provided a method of forwarding alarm warning signals representing an alarm condition in an alarm system being part of a security network comprising four or more alarm systems, wherein the alarm systems are located at different locations and are communicatively networked with each other, said method comprising:
  • a broadcast alarm transmission process being a broadcast of an alarm warning message from a first alarm system, which is the alarm system experiencing the alarm condition, to the remaining alarm systems being part of the security network.
  • the method of the third aspect of the invention further comprises a successive alarm transmission process being a transmission of an alarm warning message initiated from the first alarm system and then successively transmitted from one alarm system to another alarm system through the network of alarm systems.
  • a successive alarm transmission process being a transmission of an alarm warning message initiated from the first alarm system and then successively transmitted from one alarm system to another alarm system through the network of alarm systems.
  • the alarm systems of the network may be arranged for transmitting messages from one alarm system to another in a ring or circle like transmission network, such as in a token-ring network, and the alarm warning message transmitted by the successive alarm transmission process may be transmitted as a message from one alarm system to another alarm system through the circle like transmission network.
  • the method of the third aspect of the invention may further comprise:
  • a direct alarm transmission process being a transmission of an alarm warning message in turn directly from the first alarm system to each or at least part of the remaining alarm system of the network.
  • the alarm warning message transmitted by the successive alarm transmission process is transmitted as a message from one alarm system to another alarm system through the transmission network until being received by the first alarm system originally transmitting the alarm warning message.
  • one or more status messages may successively be transmitted from one alarm system to another alarm system through the transmission network.
  • a status message may be transmitted as a message from one alarm system to another alarm system through the ring or circle like transmission network.
  • the status message may be a token or token like message.
  • the alarm warning message transmitted by the successive alarm transmission process may be added as an alarm message to a status message being transmitted by the first alarm system.
  • a fourth aspect of the invention there is provided a method of transmitting one or more status messages in a security network comprising four or more alarm systems, wherein the alarm systems are located at different locations and are communicatively networked to each other in at least a ring or circular like topology, said method comprising:
  • the ring topology communication network may be a token ring or token ring like communication network
  • the status message is a token or token like message.
  • each alarm system of the security network has a unique unit identifier, unitJD, and that each alarm system stores the unit identifiers of all the alarm systems of the network.
  • a transmitted status message holds information identifying the alarm system
  • a transmitted status message holds information identifying the alarm system receiving the status message.
  • a status message may hold origin data identifying the transmitter, and further hold destination data identifying the receiver.
  • a status message holds data identifying the issuance of the status message, such as an issuance number. It is also preferred that a status message holds presence data representing active alarm systems having received/transmitted the status message and further representing non-active alarm systems, which have not received/transmitted the status message. It is within one or more embodiments of the third and fourth aspects of the invention that an alarm system receiving a status message checks if the message identifies the receiving alarm system as the receiver, and if not, then the status message is discarded by the receiving alarm system.
  • an alarm system receiving a status message validates the issuance data of the message, and if the message is issued before a previously received status message, then the newly received status message is discarded.
  • each alarm system of the network keeps a status record for all the other alarm systems of the network, each said status record holding information related to status messages transmitted to the corresponding alarm system of the network.
  • an alarm system may issue an alarm warning message together with the transmission of a status message, when a status record indicates that another alarm system of the network has not received/ transmitted a valid status message within a predetermined period of warning time.
  • each status record comprises a timer, and that an alarm system receiving a status message resets the timers of all status records corresponding to an active alarm system as indicated by the presence data of the status message, while timers corresponding to non-active alarm systems keep running.
  • the predetermined period of warning time may be defined by the setting of the timers of the status records, and an alarm warning message may be issued when a timer runs out.
  • the presence data of a status message comprises a number of bits corresponding to the number of alarm systems, and that a bit is set to 1 , when the corresponding alarm system is active or present, and that a bit is set to 0, when the corresponding alarm system is non-active or non-present by having not received/transmitted the status message.
  • the delay in time may be a predefined delay, such as in the range of 2-10 seconds, such as about 5 seconds.
  • each or at least part of the alarm systems have circuitry for forwarding a receipt acknowledge message to an alarm system transmitting a status message, and that when a status message is transmitted from a first alarm system to a second alarm system and no acknowledgement of reception is received from the second alarm system, then the first alarm system updates the status message by notifying in the status message that the second alarm system has not received the status message, and then transmits the status message to the next alarm system in the ring or circle like transmission network.
  • the alarm systems are communicatively networked with each other through wireless communication.
  • a security network comprising four or more alarm systems, wherein the alarm systems are located at different locations and are communicatively networked with each other for broadcasting a broadcast message from one alarm system to the other alarm systems of the network, and further being communicatively networked to each other in a ring or circular like topology for successively transmitting a ring message from one alarm system to another alarm system through the security network.
  • the alarm systems may further be communicatively networked with each other for directly transmitting a direct message in turn from one alarm system to each or at least part of the remaining alarm system of the network. It is preferred that the alarm systems are
  • each or at least part of the alarm systems have circuitry for receiving a transmitted message and for forwarding a receipt acknowledge message to the alarm system transmitting the message.
  • each or at least part of the alarm system comprises: one or more alarm devices for detecting an alarm condition; and circuitry for broadcasting an alarm message as a broadcast message or signal to the other alarm systems of the network upon an alarm condition being detected by an alarm device.
  • each or at least part of the alarm systems may further comprise circuitry for initiating the transmission of an alarm message as a ring message from one alarm system to another upon an alarm condition being detected by an alarm device.
  • each or at least part of the alarm systems may further comprise circuitry for transmitting an alarm message as a direct message in turn to each or at least part of the other alarm systems of the network upon an alarm condition being detected by an alarm device.
  • one or more status messages are transmitted as one or more ring messages from one alarm system to another alarm system through the ring or circle like transmission network.
  • the status message(s) may be a token or token like message.
  • An alarm system comprising circuitry for initiating the transmission of an alarm message as a ring message may further comprise circuitry for adding the alarm message to a status message being transmitted by the alarm system.
  • a security network comprising four or more alarm systems, wherein the alarm systems are located at different locations and are communicatively networked to each other in at least a ring or circular like topology, wherein each alarm system comprises circuitry for generating a status message, and for transmitting the status message to another alarm system within the ring like communication network, and further for receiving a status message from an alarm system within the ring like network. It is preferred that a generated status message is transmitted as a ring message from one alarm system to another alarm system through the security network.
  • the ring topology communication network may be a token ring or token ring like communication network, and the status message may be a token or token like message. It is preferred that the alarm systems are
  • each alarm system of the security network has a unique unit identifier, unitJD, and that each alarm system stores the unit identifiers of all the alarm systems of the network.
  • a transmitted status message holds information identifying the alarm system transmitting the status message.
  • a transmitted status message may also hold information identifying the alarm system receiving the status message.
  • a status message may hold origin data identifying the transmitter, and further hold destination data identifying the receiver.
  • a status message holds data identifying the issuance of the status message, such as an issuance number. It is also preferred that a status message holds presence data representing active alarm systems having received/transmitted the status message and further representing non-active alarm systems, which have not received/transmitted the status message.
  • an alarm system comprises circuitry for checking or validating if a received status message identifies the receiving alarm system as the receiver or not. It is preferred that an alarm system comprises circuitry for validating the issuance data of a received status.
  • each alarm system of the network keeps a status record for all the other alarm systems of the network, each said status record holding information related to status messages transmitted to the corresponding alarm system of the network.
  • an alarm system may comprise circuitry for issuing an alarm warning message together with the transmission of a status message, when a status record indicates that another alarm system of the network has not received/ transmitted a valid status message within a predetermined period of warning time.
  • each status record comprises a timer, and an alarm system receiving a status message may be adapted to reset the timers of all status records corresponding to an active alarm system as indicated by the presence data of the status message, while keeping timers
  • the predetermined period of warning time may be defined by the setting of the timers of the status records, and wherein an alarm warning message is issued when a timer runs out.
  • the presence data of a status message comprises a number of bits corresponding to the number of alarm systems, and that a bit is set to 1 , when the corresponding alarm system is active or present, and that a bit is set to 0, when the corresponding alarm system is non-active or non-present by having not received/transmitted the status message.
  • alarm system comprises circuitry for delaying further transmission of a received status message.
  • the delay in time may be a predefined delay, such as in the range of 2-10 seconds, such as about 5 seconds.
  • each or at least part of the alarm systems have circuitry for receiving a transmitted message and for forwarding a receipt acknowledge message to the alarm system transmitting the message, and that when a status message is transmitted from a first alarm system to a second alarm system and no acknowledgement of reception is received from the second alarm system, the first alarm system comprises circuitry for updating the status message by notifying in the status message that the second alarm system has not received the status message, and further comprises circuitry for transmitting the status message to the next alarm system in the ring or circle like transmission network.
  • the security network further comprises a central server and that the network alarm systems are communicatively networked with each other through wireless communication, and that at least one of the network alarm systems comprises a GSM modem adapted for establishing communication between the central server and the network alarm systems. It is preferred that at least two of the network alarm systems comprises a GSM modem adapted for establishing communication between the central server and the network alarm systems. It is also preferred that an alarm system comprising a GSM modem is adapted for forwarding a message received from another alarm system via the GSM modem to the server.
  • a wireless security network and/or alarm system being part of a security network according to the third, fourth, fifth or sixth aspects of the invention is/are selected from the wireless security networks and/or alarm systems according to the first aspect of the invention.
  • a seventh aspect of the invention there is provided a method of connecting a new alarm system to a security network in a security network system comprising at least two wireless security networks, wherein each security network comprises two or more alarm systems being located at different locations and being communicatively networked with each other through wireless communication at a communication channel or frequency selected from a predetermined number of communication channels or frequencies, said method comprising:
  • the method further comprises selecting a security network based on the network information received with the response messages, and connecting the new alarm system to the selected security network.
  • the network selection process may comprise a presentation of at least part of the network information to a user, which user then selects the security network.
  • the new alarm system may broadcast one or more search messages at a first selected channel or frequency; and awaits response messages from alarm systems at said first selected channel or frequency, and the new alarm system may further broadcast one or more search messages at a second selected channel or frequency; and awaits response messages from alarm systems at said second selected channel or frequency.
  • the new alarm system broadcasts one or more search messages at each of the predetermined communication channels or frequencies.
  • each security network has a unique network identifier
  • each alarm system of a network holds information of the corresponding network's unique identifier allowing communication between alarm systems of the same network, and that each or at least part of the alarm systems of a network further holds a no-network identifier being different to the network identifiers, thereby allowing communication with alarm systems outside the security networks and/or with alarm systems of another security network.
  • the broadcasted scan messages may hold the no-network identifier.
  • a security network system comprising at least two wireless security networks, wherein each network comprises two or more alarm systems being located at different locations, wherein each security network is uniquely identified, and wherein all alarm system of a selected security network are communicatively networked with each other through wireless communication.
  • Each alarm system of each network may hold information identifying the network to which the alarm system is part of, and each security network may have a unique network identifier.
  • a security network is identified by a unique network identifier being stored in the alarm systems being part of the security network.
  • each or at least part of the alarm systems of a network further holds a no-network identifier being different to the network identifiers, thereby allowing communication with alarm systems outside the security networks and/or with alarm systems of another security network.
  • a security network system comprising at least two wireless security networks, wherein each security network has a unique network identifier and comprises two or more alarm systems being located at different locations and being communicatively networked with each other through wireless communication, wherein each alarm system of a network holds information of the corresponding network's unique identifier allowing communication between alarm systems of the same network; and
  • each or at least part of the alarm systems of a network further holds a no- network identifier being different to the network identifiers, thereby allowing
  • At least part of the security networks communicate within different wireless transmission frequencies.
  • all the security networks may communicate within different wireless transmission frequencies, and the transmission frequency of a security network may thereby uniquely identifying the security network.
  • at least part of the security networks communicate within the same wireless transmission frequency, and that a security network is identified by a unique network identifier being stored in the alarm systems being part of the security network.
  • all the security networks may communicate within the same wireless transmission frequency, and a security network may be identified by a unique network identifier being stored in the alarm systems being part of the security network
  • each alarm system has a unique unit identifier, and that each alarm system of a security network stores the unit identifiers of all the alarm systems being part of said network.
  • the alarm systems are communicatively networked with each other for broadcasting a broadcast message from one alarm system to the other alarm systems of the network. It is preferred that for some or for each of the security networks, the alarm systems are communicatively networked to each other in a ring or circular like topology for successively transmitting a ring message from one alarm system to another alarm system through the security network.
  • he security network system further comprises a central server, and that for each of the security networks, at least one of the network alarm systems comprises a GSM modem adapted for establishing communication between the central server and the alarm systems of the corresponding network.
  • at least two of the network alarm systems comprises a GSM modem adapted for establishing communication between the central server and the alarm systems of the corresponding network.
  • an alarm system comprising a GSM modem is adapted for forwarding a message received from another alarm system of the same network via the GSM modem to the server.
  • the wireless security networks being part of a security network system according to the eighth or ninth aspects of the invention may be selected from the wireless security networks according to the fifth or sixth aspects of the invention. It should also be understood that it is within one or more embodiments of the systems of the eighth and ninth aspects of the invention that the wireless security networks being part of a security network system according to the eighth or ninth aspects of the invention may be selected from the wireless security network systems according to the second aspects of the invention.
  • a security network comprising four or more alarm systems being located at different locations and being communicatively networked with each other through wireless communication for transmitting messages from one alarm system to another, wherein the security network further comprises a central server, and wherein at least one of the network alarm systems comprises a GSM modem adapted for establishing communication between the central server and the network alarm systems.
  • the network alarm systems comprises a GSM modem adapted for establishing communication between the central server and the network alarm systems.
  • the alarm systems are communicatively networked with each other for broadcasting a broadcast message from one alarm system to the other alarm systems of the network. It is also preferred that the alarm systems are communicatively networked to each other in a ring or circular like topology for successively transmitting a ring message from one alarm system to another alarm system through the security network.
  • An alarm system comprising a GSM modem may be adapted for forwarding a message received from another alarm system via the GSM modem to the server.
  • the wireless security networks being part of the security network of the tenth aspect of the invention are selected from the wireless security networks according to the first aspect of the invention.
  • Fig. 1 is a block diagram showing an alarm system for use in a security network according to an embodiment of the invention
  • Fig. 2 is a block diagram giving more details of a base unit being part of the alarm system of Fig. 1 ,
  • Fig. 3 illustrates a security network system with two security networks according to an embodiment of the invention
  • Fig. 4 is a table illustrating communication commands used by the alarm systems of a security network according to an embodiment of the invention
  • Fig. 5 is a flowchart illustrating the connection of an alarm system to a security network according to an embodiment of the invention
  • Fig. 6 is a flowchart illustrating the disconnection of an alarm system from a security network according to an embodiment of the invention
  • Fig. 7 is a flowchart illustrating forwarding of status messages between alarm systems being part of a security network according to an embodiment of the invention
  • Fig. 8 is a flowchart illustrating start of an alarm signal according to an embodiment of the invention.
  • Fig. 9 is a flowchart illustrating cancelling of an alarm signal according to an embodiment of the invention
  • Fig. 10 is a flowchart illustrating acknowledge of command received according to an embodiment of the invention
  • Fig. 1 1 is a flowchart illustrating possible commands and corresponding actions performed by an alarm system being part of a security network according to an embodiment of the invention
  • Figs. 12 and 13 are diagrams illustrating communication of status messages between alarm systems being part of a security network according to a first embodiment of the invention
  • Figs. 14-16 are diagrams illustrating communication of status messages between alarm systems being part of a security network according to a second embodiment of the invention
  • Figs. 17a,b,c are diagrams illustrating forwarding of an alarm signal according to an embodiment of the invention
  • Figs. 18a,b are diagrams illustrating communication between an alarm system searching for a security network and alarm systems being part of a security network according to an embodiment of the invention
  • Figs. 19a,b are diagrams illustrating the use of different transmission channels for different security networks according to an embodiment of the invention
  • Fig. 20 is a diagram illustrating communication between a central server and a alarm systems of a security network according to an embodiment of the invention
  • Figs. 21 a, b are diagrams illustrating communication of alarm messages between alarm systems being part of a security network according to an embodiment of the invention.
  • Fig. 1 is a block diagram showing an alarm system 100 for use in a security network according to an embodiment of the invention.
  • the security network comprises a number of alarm systems 100 which are located at different locations, see also Fig. 3.
  • the alarm systems 100 of the security network are communicatively networked with each other to form a security network in which the alarm systems 100 communicates with each other, where a message may be broadcasted or transmitted from the transmitting alarm system 100 to one or more of the remaining alarm systems 100 of the network, see also Figs. 12-17 and Fig. 21.
  • the alarm systems 100 being members of the same network may communicate directly with each other whereby a message may be transmitted simultaneously from the sender to the other members of the network, Figs.
  • the alarm systems 100 being members of the same network may also or alternatively be connected in a ring network , such as a token or token like network, whereby a message may be transmitted successively from one alarm system to another alarm system of the network, Figs. 14-17.
  • a ring network such as a token or token like network
  • the network comprises at least four alarm systems 100, and the alarm systems may be communicatively networked by a so-called peer- to-peer networking.
  • the alarm systems 100 may be networked together by different means, and in one embodiment of the invention, the alarm systems are communicatively networked with each other through a computer network such as the Internet. In another embodiment of the invention, which is the preferred embodiment, the alarm systems 100 are communicatively networked with each through wireless communication.
  • the alarm system 100 shown in Fig. 1 has a base unit 101 , to be discussed in more details in connection with Fig. 2, a number of alarm triggering or sensor devices 102 and a number of alarm devices 103 for raising an alarm.
  • the base unit 101 has control and communication circuitry, and the alarm triggering devices 102 are communicating with the base unit 101 through wireless communication 104, and the base unit 101 is also communicating with the alarm devices through wireless communication 105.
  • an alert signal is forwarded to the base unit 101 , which again may forward an activation signal to one or more of the alarm devices 103 to raise an alarm signal.
  • the communication circuitry of the base unit 101 is also adapted for wireless communication 106 with the other alarm systems being part of the security network, and when the base unit 101 receives an alert signal from one of the sensors or triggering devices 102, a warning signal or alarm command may be transmitted from the base unit 101 to the other base units of the alarm systems of the network.
  • the alarm triggering devices 102 may be alarm sensors such as intrusion/burglar detectors, such as motion detectors such as door/window detectors for detecting opening of a door/window.
  • the alarm triggering devices 102 may also comprise or be a panic button which can be activated by a person pushing or pressing the button.
  • Other alarm triggering devices or detectors may be used such as smoke/fire detectors, a carbon-monoxide detector, a water detector and a gas detector.
  • the alarm detectors 102 wirelessly transmit an alert message to the base unit 101 upon detecting an alarm condition.
  • a remote control (not shown) is used to operate the alarm system 100. In this way the user may, for instance, arm or disarm the alarm system 100.
  • the alarm devices 103 for raising an alarm may include an audible alarm device, a visual alarm device, a device for forwarding SMS messages to pre-programmed mobile phone numbers, and a device for calling one or more pre-programmed telephone numbers.
  • Fig. 2 is a block diagram giving more details of the base unit 101 being part of the alarm system 100 of Fig. 1.
  • the base unit 101 comprises a central processing unit, CPU, 201 , a display module 202, a data entry module 203, a wireless receiver/transmitter module 204, and a power supply module 205.
  • the display module 202 may be an alphanumeric display, such as a LED or LCD display, with 30 characters or more in order to be capable of showing names and addresses.
  • the display should preferably be able to show more than one line of text, and the display may be used to assist the user in navigating through menus, entering data, and to display messages (status, names and addresses for other network members, alarm messages, battery operation etc).
  • the display may have control LEDs for showing status for the system (Power, Online, Battery condition etc).
  • the display module 202 must have interfaces to the user for navigating, to the data entry module 203, and further have interface to the CPU 201.
  • the data entry module 203 may be an alphanumeric keyboard for entering names and addresses or a numeric keypad with text input (like phone) or step-up / step down buttons to select characters.
  • the data entry module 203 may also have command buttons for easy access to key commands such as "Panic" (set alarm) or "Stop alarm”.
  • the data entry module 203 may be used for entering user inputs, e.g. commands, data (name, address), and for navigating through user menu.
  • the data entry module interfaces to the display module 203 and to the CPU 201.
  • the wireless receiver / transmitter module 204 comprises wireless communication circuitry, such as RF circuitry.
  • the wireless module 204 serves to transmit and receive messages from the base units of the other alarm systems 100 of the network, and further functions to receive trigger or alert signals from the sensors/triggering devices 102 and to forward activation or de-activation signals to the alarm devices 103.
  • the wireless module 204 has interfaces to the wireless sensors 102, the wireless alarm devices 103, the CPU 201 , and the other base units 101 in the network.
  • the power supply module 205 has power supply circuitry for supplying the base unit 101 with mains power, and back-up battery and battery charging circuitry.
  • the power supply module thus serves to provide the base unit 101 with mains power, keep the backup battery charged and switch between mains and battery operation.
  • the power supply module interfaces to mains power and to the base unit 101.
  • the CPU module 201 forms the control circuitry of the base unit 101 and contains hardware and software for controlling all operational functions and communications (send/receive) of the base unit.
  • the CPU module also contains data for the network, such as names and addresses of the members of the network, unique identifiers of the alarm systems 100 of the network, and identification of the network of which the alarm system 100 is part of.
  • the CPU module 201 contains a microcontroller with RAM, ROM, IO and ALU and non-volatile memory for storing data.
  • the CPU module 201 interfaces to the display module 202, the data entry module 203, the wireless receiver / transmitter module 204, and the power supply module 205.
  • Fig. 3 illustrates a security network system with two security networks 301 , 303 according to an embodiment of the invention.
  • the first network 301 has 6 alarm systems at 6 different locations 302a-302f
  • the second network 303 has 4 alarm systems at 4 different locations 304a-304d.
  • the two alarm systems of 302c and 302f are located so as to be in communication range with both the first network 301 and the second network 303, but here they have been set up to be members of the first network 301.
  • the present invention also covers security network systems with more than two security networks.
  • an alarm system may be located so as to be in communication range with several networks, but it it preferred that the alarm system is only connected to or member of a single security network. Communication protocol
  • Commands may be sent out simultaneously to all units in the network or as a ring message or token travelling around a ring or token like unit network.
  • the communication protocol may allow commands to be sent by any alarm system of the network asynchronously at random times.
  • a receiving alarm system of the network may return all commands with an
  • - Acknowledge may be sent to all alarm systems of the network or to the transmitting alarm system.
  • the network is identified by an ID.
  • Fig. 4 is a table illustrating control commands, which may be used for the
  • Network_request Join_network, Leave_network, l_am_alive, Alarm, and Acknowledge.
  • the first command of Fig. 4 is the Network _request command. This command may be initiated by a user when an alarm system is not yet connected to a security network.
  • a network may be in communication range to the alarm system, then at least one or more alarm systems and preferably all the alarm systems being part of this network should be in
  • a mapping of this network is performed, which includes an identification of the alarm systems being member of the network, and may further include an exchange of communication signals or messages with all the identified members of the network.
  • All alarm systems being member of a security network store data identifying the members of the network, and these data can be transferred from an alarm system being member of the network to the searching alarm system.
  • the second command of Fig. 4 is a Join_network command.
  • the join_network command is issued, and the new alarm system connects to the network, during which connection action the new alarm system is identified to all the alarm systems being member of the network and these alarm systems are updated with the identifier, Unit-ID, of the new alarm system.
  • the new alarm system is also updated with the identifiers, Unit-ID, of the members of the alarm system. It is preferred that each security network has a network identifier, NetworkJD, and the network identifier is also stored in all alarm systems being part of the corresponding network.
  • an" l_am_alive” command may be given by the CPU module, and such a command may be given at regular intervals.
  • the "l_am_alive” command may activate the alarm system to transmit a status message, which may include name and address and/or Unit-ID of the transmitting alarm system.
  • This status message is received by all the other members of the network, and each member of the network stores a status record for all the other members of the network.
  • the corresponding status record is updated.
  • status messages are transmitted at predetermined, regular intervals, which may be every minute, or every 30 or 15 seconds, and if a status message for one of the alarm systems is not received by another alarm system of the network within this predetermined interval, then an alarm will be issued by the alarm system(s) not receiving such status message.
  • status messages are transmitted as token like messages in a ring shaped communication network, where a receiving alarm system may wait a predetermined time, such as 5 seconds, in order not to overload the network, before transmitting a status message to the following alarm system.
  • a receiving alarm system may wait a predetermined time, such as 5 seconds, in order not to overload the network, before transmitting a status message to the following alarm system.
  • One or more status messages may be travelling round the network. If one of the alarm systems has not transmitted a status message within a predetermined period of time, such as one minute or 30 sec, then an alarm may be issued by the alarm system notifying from a received status message that the not-transmitting alarm system is missing.
  • an alarm command or warning signal is issued or transmitted.
  • An alarm command or warning signal may also be issued when an alarm systems has detected that another alarm system of the network has not issued a status message within the predetermined interval.
  • the alarm command or warning signal may hold information of the ID of the sender and information of the type of sensor/triggering device 102, which rises the alarm. In case of the alarm command being issued due to no status message received, then the alarm command or warning signal holds information of the sender ID and the ID of the alarm system not transmitting status messages.
  • the alarm command/warning signal makes it possible for the receiving alarm systems to identify the sender and to identify the alarm type, which makes it possible for the receiving alarm systems to choose between different alarm actions.
  • the alarm command can be used for issuing alarm start/activating commands, but the alarm command may also be used for forwarding alarm stop commands.
  • the acknowledge command is used when an alarm system of the network has received a command or message.
  • Alarm systems of the network may return all commands with an acknowledge, so that the sender knows if a receiving alarm system have received the command.
  • the alarm system may ensure that the user is guided. E.g. if the user tries to connect to a network without having entered own name and address he is asked to do so.
  • the alarm system 100 is armed or disarmed for burglar alarm operation. This function may act like other alarm system, i.e. PIN code controlled, timer controlled etc.
  • the user sets up his own system to identify himself for the other members of the network.
  • the alarm system 100 scans for active networks in the neighborhood.
  • the alarm system 100 connects to a network. If several networks are active the user will choose which one to connect to.
  • the system disconnects from the network (permanently).
  • the alarm system 100 performs a system test where sensors and alarm devices are tested without alarming the network. This should be assisted by the user and may be performed by a technician.
  • the system powers off and signals its (temporary) absence to the network.
  • the panic buttons may be active.
  • the alarm system 100 is communicating with the network. It sends and receives commands and messages.
  • Sent messages The alarm system 100 transmits "I am alive" status messages telling the network that the alarm system 100 is online. In case of an alarm an alarm command or warning signal is sent. Received messages: These could be messages from other alarm systems in the network telling that a new member has connected, that a member has disconnected (permanently or temporary). It could be the "I am alive” message from other alarm systems. And it could of cause be an alarm command.
  • the alarm may be send to the network indicating the type of alarm and the name/address of the unit.
  • Figs. 5-1 1 are flowcharts illustrating actions taken by issuance of different commands.
  • Fig. 5 is a flowchart illustrating the connection of a new alarm system 100 to a security network.
  • the unit is connected for the first time. Initiate "initial set-up" or "scan for network”.
  • the function "scan for network” is activated - 502.
  • the unit sends request to the network - 503.
  • the unit identifies one or more active network:
  • the alarm system sends connect command join_network to the other alarm system in the network - 51 1.
  • Fig. 6 is a flowchart illustrating the disconnection of a connected alarm system 100 from a security network.
  • the alarm system sends Leave_network command to the other alarm systems in the network - 603.
  • Fig. 7 is a flowchart illustrating forwarding and check of status messages between alarm systems being part of a security network according to an embodiment of the invention.
  • the status is send automatically and regularly.
  • the unit send an l_am_alive command - 702.
  • the unit checks that all other units are alive - 703, 704.
  • Fig. 8 is a flowchart illustrating start of an alarm command.
  • An alarm is recognized by an alarm system of the network.
  • the alarm system knows what triggered the alarm. Function
  • the alarm system sends an alarm command - 802.
  • Fig. 9 is a flowchart illustrating cancelling of an alarm signal.
  • the user cancels the alarm, or a timeout - 902.
  • the alarm system sends an alarm_stop command - 903.
  • Fig. 10 is a flowchart illustrating send acknowledge of command received.
  • the alarm system receives a command.
  • the alarm systems sends an acknowledge - 1002.
  • Fig. 1 1 is a flowchart giving an overview of commands and corresponding actions performed by an alarm system being part of a security network according to an embodiment of the invention.
  • the alarm system receives a command - 1102.
  • the alarm system parses (interpret) the command and perform the relevant action.
  • the commands may be as described in connection with the table of Fig. 4:
  • Join_network - 1104 which may include the action of adding the ID and name and address of the new alarm system to the members of the network - 1105, see also the flowchart of Fig. 5;
  • Leave_network - 1106 which may include the action of removing the alarm system from the network - 1107, see also the flowchart of Fig. 6;
  • l_am_alive - 1108 which may include the action of forwarding a status message and checking status messages received, including log of time of receipt of status message and log of name and address of sender - 11009, see also the flowchart of Fig. 7;
  • Alarm - 11 10 which may take a decision 1 11 1 of stop alarm - 11 12, or start alarm, where the alarm may be an audible or visible alarm 1 113, and where there may be a timeout of for example 5 min. - 11 14 for the alarm, see also the flowcharts of Figs. 9 and 8.
  • An alarm system sends an l_am_alive status message to the network frequently and regularly.
  • the alarm system receives l_am_alive status messages from other alarm systems in the network
  • the alarm system checks status for all other alarm systems in the network and issues alarm if an alarm system has stopped sending l_am_alive status messages.
  • Figs. 12 and 13 are diagrams illustrating communication of status messages between alarm systems being part of the same security network according to a first embodiment of the invention.
  • the alarm system 1201 transmits a status message
  • the message may contain information of which network the transmitting alarm system 1201 belongs to and identifies the alarm system 1201.
  • the transmission of the status message may be repeated frequently and regularly during normal operation.
  • the alarm system 1201 receives a status message from another alarm system 1204 of the network.
  • the alarm system 1201 recognizes the message as coming from an alarm system 1204 in the same network as alarm system 1201 is part of.
  • Alarm system 1201 holds a status record for alarm system 1204, which status record may include a counter or timer, and alarm system 1201 updates or resets the status record for alarm system 1204, in case the status record include a counter or timer, this counter or timer may be reset, meaning that "alarm system 1204 has been reporting l_am_alive 0 seconds ago".
  • Alarm system 1202 checks status records for all other alarm systems 1202-1207 in the network, and If the status record or counter/timer for an alarm system in the network exceeds a pre-defined time since receipt of status message, an alarm or warning message is sent to the network . Multiple networks allowed
  • the present invention also covers a security network system comprising two or more security networks, where the security networks may be networks as described above.
  • a security network should be geographically limited to keep an "neighbor watch" intact. Therefore it makes no sense to just keep on extending an existing network with more units. New networks should be created instead. In areas where two active networks are within reach of an alarm system there may be a need for the alarm system to be able to distinguish between the networks and to let the user choose which network he/she wants to join.
  • each network is identified by a unique identifier.
  • the networks can function on either the same wireless transmission frequency or on different frequencies, and each alarm system of a network can scan for active networks being in range.
  • the alarm system may scan the allowed frequencies and receive messages from other alarm systems.
  • the network transmission frequency may be used as identifier for the network.
  • the alarm systems scan the network frequency and receives messages from other alarm systems, where the network they belong to is identified by a network ID included in a received message.
  • the scanning alarm system may then be connected to a specific network, decided by the user.
  • a specific network decided by the user.
  • only messages from other alarm systems belonging to the chosen network are received/reacted upon. It is possible to scan for networks and change between networks at any time.
  • Figs. 14-16 are diagrams illustrating communication of status messages between alarm systems being part of a security network according to a second embodiment of the invention.
  • the security network 1400 comprising five alarm systems 1401-1405, which are communicatively networked to each other in at least a ring or circular like topology.
  • Each alarm system 1401-1405 comprises circuitry for generating a message or status message 1406, and for transmitting the message or status message 1406 to another alarm system within the ring like communication network as indicated by the arrows between the alarm systems 1401-4105, and further for receiving a message or status message from an alarm system within the ring like network 1400.
  • the ring topology communication network 1400 is a token ring or token ring like communication network 1400, and the message or status message is a token or token like message 1406.
  • the token like message or status message 1406 comprises a series of bits, which may include 8 bits of origin 1407 for identifying the alarm system transmitting the message and 8 bits of destination 1408 for identifying the alarm system intended to receive the message, see also Fig. 15a.
  • the unit or alarm system checks whether the destination 1408 is its own ID number. Otherwise the token is discarded.
  • a delay is used before passing on the token 1406.
  • the receiving unit or alarm system waits a predetermined period of time, such as approx 5 seconds, before updating the new token 1406 and passing it on.
  • the token like status message 1406 further may have two times 8 bits count 1409, which include an 8 bit increment counter 141 1 , and 8 bit of unit ID 1412, see also Fig. 15b.
  • 8 bits count 1409 which include an 8 bit increment counter 141 1 , and 8 bit of unit ID 1412, see also Fig. 15b.
  • the value of the 8 bit increment counter 1411 is compared to that of the last received and accepted token 1406. If the value of the counter 14011 is equal to or greater than the last count, then this token 1406 is accepted as valid, and its data is valid. If the value is less, then the token 1406 must be older than at least one other token on the net. The token is then discarded.
  • a timer is started, and when it expires, a new token 1406 may be constructed with a count value constructed from the internally maintained 8 bit increment counter 1411 and the 8 bit Unit ID 1412 representing the ID of the unit or alarm system constructing the new token 1406. If a valid token arrives before the recovery timer expires, the timer is stopped. The expiry time of the recovery timer may be calculated from the network setup: the time a token 1406 takes to make a best case round trip + a jitter value.
  • the jitter value ensures that token recovery will not happen simultaneously in the units or alarm systems 1401-1405. This might provoke too many discards of tokens 1406.
  • the token like status message 1406 may also have a series of data bits 1401 , which may be up to 20 bits, see also Fig. 15c.
  • a token is recovered, all units or alarm systems 1401-1405 are assumed missing, except the recovering unit itself.
  • the data 1410 is a status of the units or alarm systems 1401-1405 on the network 1400. If the n'th bit is set to 1 , the n'th unit is present. Every unit 1401-1405 monitors all other units on the network 1400. The unit or alarm system maintains a timer for all units 1401-1405, which timer triggers a keep alive alarm when it expires. Every time a valid token 1406 arrives, the unit or alarm system 1401-1405 resets the timer of the units that are present. Each unit 1401-1405 keeps the data from the last valid token 1406. When the token 1406 is passed on, the network status is passed along. Each unit is represented by 1 bit in the data 1410, 1 for present, 0 for missing.
  • Each timer may represent a status record for the corresponding unit or alarm system, where the timer holds information about how long time has expired since the corresponding unit has received or transmitted a status messages.
  • Figs. 16a-16c illustrate an unsuccessful delivery of a token 1406 from a first unit or alarm system A to a second unit or alarm system B, where the token is then
  • the unit A When the unit A tries to pass the token 1406 on unsuccessfully, the receiving unit B's status bit is set to 0, and the sender A will try the next unit C on the network 1400. The next unit C will then be passed a token where the original receiver B is missing. If the unit B has not announced it presence at a passing status message 1406 within a specified time, a keep alive alarm will go off.
  • each alarm system 1401-1405 has a unique unit identifier, unitJD, and each alarm system 1401-1405 stores the unit identifiers of all the alarm systems 1401-1405 of the network 1400.
  • a transmitted status message 1406 holds information identifying 1407 the alarm system transmitting the status message 1406, and further holds information identifying the alarm system 1408 receiving the status message.
  • a status message 1406 also holds data identifying the issuance of the status message, such as an issuance number or count given by the increment counter 141 1.
  • the token 1406 may be appended with the alarm data of the active alarm, i.e. user information and alarm type.
  • Figs. 17a-17c are diagrams illustrating forwarding of an alarm signal 1413 according to an embodiment of the invention.
  • the alarm data 1413 is added to the token 1406 each time a unit 1401-1405, which has received the alarm signal 1413, generates or passes on the token 1406, see Fig. 17a.
  • the unit receiving the token 1406 with the appended alarm data 1413 will then pass on the token and alarm data, 1406 and 1413, to the next unit or alarm system in the ring network 1400, see Fig. 17b.
  • the unit or alarm system which previously has sent the alarm 1413, receives the alarm 1413 again in a token 1406, then the alarm may be removed from the token 1406 before the token 1406 is passed on again, see Fig. 17c. Thus, only necessary data should be sent.
  • Fig. 18a is a diagram illustrating communication between an alarm system 1801 searching for a security network and alarm systems 1802-1806 being part of a security network according to an embodiment of the invention.
  • a new unit 1801 is asked to search for nets by the new user.
  • the unit 1801 will then start broadcasting a PING package to all units 1802-1806 in its vicinity.
  • the content of the PING package is illustrated in Fig. 18b.
  • Origin 1808 is a random value in the range 32-255 to avoid collision with existing routing table
  • Destination 1809 is a fixed value of 255, to indicate it is a broadcast
  • No connection 1810 is a fixed value of 255, to avoid collision with existing network identifiers, Net IDs or NetworkJDs.
  • Type 181 1 is a fixed value to distinguish the packet type as a PING signal in this case.
  • the Data 1812 is not part of the broadcasted PING package but part of the response 1807. If a unit 1802-1806 is within receiving distance, and the unit 1802-1806 is connected to a security network, it will send a PING response 1807 back to the pinging unit 1801.
  • the PING response 1807 has the content: Origin 1808 is the ID of the responding unit, Destination 1809 is the ID of the pinging unit 1801 , No connection 1810 is 255, as before for the broadcasted PING signal, Type 1811 is a fixed value to distinguish the packet type as a PING response, and Data 1812 is the contact info for the admin, e.g. the phone number.
  • Origin 1808 is the ID of the responding unit
  • Destination 1809 is the ID of the pinging unit 1801
  • No connection 1810 is 255, as before for the broadcasted PING signal
  • Type 1811 is a fixed value to distinguish the packet type as a PING response
  • Data 1812 is the contact info for the admin, e.g. the phone number.
  • the data received from the PING responses at the new unit 1801 is then used for displaying the list of found security networks, and the contact info for the various networks.
  • the networks may communicate on different communication channels or frequencies. And if different networks are communicating at the same channel or frequency, then the networks are distinguished by a unique network identifier, NetworkJD. However, it is preferred that all networks have a unique network identifier.
  • the new unit or alarm system 1801 will have to perform a scanning process, in which the new alarm system 1801 broadcasts the PING signal at a number of the
  • predetermined communication channels or frequencies being the channels of frequencies which are allowed for the security network system.
  • 10 different channels or sub-frequencies are allowed and may be used.
  • the new unit 1801 will receive one or more response messages from alarm systems 1802-1806 being part of a security network and having received the broadcasted PING signal.
  • the PING response messages are communicated at the same channel or frequency as the corresponding broadcasted PING signal, and the PING responses hold information of the network to which the responding alarm system 1802-1806 belongs.
  • the unit 1801 may be adapted for presenting the received network information to a user, which user then selects the security network. It is to be noted that when each security network has a unique network identifier, then each alarm system 1802-1806 of a network holds information of the corresponding network's unique identifier, which allows communication between alarm systems of the same network. But in order for the alarm systems of a network to communicate with alarm system outside the network, such as the new alarm system 1801 , then the alarm systems further holds a no-network identifier being different to the network identifiers.
  • the No connection 1810 has a fixed value of 255, to avoid collision with existing network identifiers, NetworkJDs, and thereby functions as the no-network identifier.
  • interference can occur, which may cause loss of transmission messages or packets.
  • the networks can operate on different sub-channels. This is illustrated in Figs. 19a and 19b, where the two networks of Fig. 19a are operating on the same channel, sub-channel 0, and interfering with each other, while the network of Fig. 19b is operating at another channel, sub-channel 1 , to thereby avoid interference with the networks of Fig. 19a.
  • Fig. 20 is a diagram illustrating communication between a central server 2001 and alarm systems 2002-2006 of a security network 2000 according to an embodiment of the invention.
  • the units 2002-2006 communicate to the central server 2001 by communicating to one or more units 2002, 2003 having a GSM Modem. To ensure redundancy, it is preferred that two or more units 2002, 2003 have a GSM modem.
  • the network 2000 optimizes utilization of these modems 2002, 2003 by having the units 2004-2006 communicating to the units 2002 or 2003 in order to communicate to the central server 2001.
  • the alarm systems 2002-2006 may be communicatively networked with each other for broadcasting a broadcast message from one alarm system to the other alarm systems 2002-2006 of the network 2000, and they may be communicatively networked to each other in a ring or circular like topology for successively transmitting a ring message from one alarm system to another alarm system 2002-2006 through the security network 2000.
  • Figs. 21 a, b are diagrams illustrating communication of alarm messages between alarm systems being part of a security network according to an embodiment of the invention.
  • the unit 2101 will broadcast an alarm message or signal 2106, and units 2102-2105 receiving the alarm will relay the broadcast.
  • the alarm broadcast of Fig. 21a aims to notify as many units or alarm systems 2102-2105 of the network as possible in the first try.
  • the broadcast process does not return any info on number of units 2102-2105 receiving the alarm 2106.
  • the broadcasting unit 2101 will transmit the alarm message or signal to each unit specifically, that is to 2102 as indicated by 1 , to 2103 as indicated by 2, 2104 as indicated by 3, and 2105 as indicated by 4.
  • the units 2102-2104 receiving this alarm message may return a receipt acknowledge.
  • the system aims to optimize the number of receiving units 2102-2105 in the network.

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  • Alarm Systems (AREA)

Abstract

L'invention porte sur un réseau de sécurité et sur un procédé d'envoi de signaux d'avertissement d'alarme dans un réseau de sécurité, la sécurité comprenant quatre systèmes d'alarme ou davantage situés à différents emplacements. Les systèmes d'alarme sont mis en réseau en communication les uns avec les autres pour former le réseau de sécurité, et les systèmes d'alarme peuvent-être mis en réseau en communication les uns avec les autres par l'intermédiaire d'une communication sans fil. L'invention porte également sur un système de réseau de sécurité comprenant au moins deux réseaux de sécurité sans fil, chaque réseau comprenant deux systèmes d'alarme ou davantage situés à différents emplacements, chaque réseau de sécurité étant identifié de manière unique, et tous les systèmes d'alarme d'un réseau de sécurité sélectionné étant mis en réseau en communication les uns avec les autres par l'intermédiaire d'une communication sans fil.
PCT/EP2011/064446 2010-08-23 2011-08-23 Réseau de sécurité, système de réseau de sécurité et procédé d'envoi de signaux d'avertissement d'alarme dans un réseau de sécurité WO2012025517A1 (fr)

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DKPA201000737 2010-08-23
DKPA201000737 2010-08-23

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WO2012025517A1 true WO2012025517A1 (fr) 2012-03-01

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PCT/EP2011/064446 WO2012025517A1 (fr) 2010-08-23 2011-08-23 Réseau de sécurité, système de réseau de sécurité et procédé d'envoi de signaux d'avertissement d'alarme dans un réseau de sécurité

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015166254A1 (fr) * 2014-04-29 2015-11-05 Cook George Michael Unité d'alarme
NO20161779A1 (en) * 2016-11-10 2018-05-11 Sfty As Safety detector and system for multi dwelling units and the like

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792946A (en) * 1987-04-07 1988-12-20 Spectrum Electronics, Inc. Wireless local area network for use in neighborhoods
US20030134598A1 (en) * 2002-01-15 2003-07-17 Gerry Sendrowicz Communication nodes for use with a wireless ad-hoc communication network
US20070063837A1 (en) * 2005-09-20 2007-03-22 Vulano Group, Inc. Self-configuring emergency event alarm network
US20070090944A1 (en) * 2005-10-25 2007-04-26 Du Breuil Thomas L Home-monitoring system
US20070133356A1 (en) * 2005-12-08 2007-06-14 Zip Alarm Inc. Alarm system with a plurality of interactive alarm units
EP1903523A1 (fr) * 2006-09-21 2008-03-26 E.I. Technology Limited Systèmes d'alarme

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4792946A (en) * 1987-04-07 1988-12-20 Spectrum Electronics, Inc. Wireless local area network for use in neighborhoods
US20030134598A1 (en) * 2002-01-15 2003-07-17 Gerry Sendrowicz Communication nodes for use with a wireless ad-hoc communication network
US20070063837A1 (en) * 2005-09-20 2007-03-22 Vulano Group, Inc. Self-configuring emergency event alarm network
US20070090944A1 (en) * 2005-10-25 2007-04-26 Du Breuil Thomas L Home-monitoring system
US20070133356A1 (en) * 2005-12-08 2007-06-14 Zip Alarm Inc. Alarm system with a plurality of interactive alarm units
EP1903523A1 (fr) * 2006-09-21 2008-03-26 E.I. Technology Limited Systèmes d'alarme

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015166254A1 (fr) * 2014-04-29 2015-11-05 Cook George Michael Unité d'alarme
US20170053520A1 (en) * 2014-04-29 2017-02-23 Cook Foundation Holdings Ltd. Alarm unit
NO20161779A1 (en) * 2016-11-10 2018-05-11 Sfty As Safety detector and system for multi dwelling units and the like
NO342364B1 (en) * 2016-11-10 2018-05-14 Sfty As Safety detector and system for multi dwelling units and the like
WO2018088912A3 (fr) * 2016-11-10 2018-12-20 Sfty As Détecteur de sécurité et système pour unités d'habitation multiples et analogues

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