WO1996036952A1 - Systeme de communication - Google Patents

Systeme de communication Download PDF

Info

Publication number
WO1996036952A1
WO1996036952A1 PCT/NZ1996/000044 NZ9600044W WO9636952A1 WO 1996036952 A1 WO1996036952 A1 WO 1996036952A1 NZ 9600044 W NZ9600044 W NZ 9600044W WO 9636952 A1 WO9636952 A1 WO 9636952A1
Authority
WO
WIPO (PCT)
Prior art keywords
alarm
network
transceiver
router
location
Prior art date
Application number
PCT/NZ1996/000044
Other languages
English (en)
Inventor
Kevin Murray Johnson
Original Assignee
Spectral Investments Limited
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 Spectral Investments Limited filed Critical Spectral Investments Limited
Priority to AU58471/96A priority Critical patent/AU5847196A/en
Publication of WO1996036952A1 publication Critical patent/WO1996036952A1/fr

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
    • G08B27/003—Signalling to neighbouring houses
    • 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
    • G08B25/06—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 power transmission lines

Definitions

  • This invention relates to a communication system.
  • This monitoring system is also ineffective in some instances when a burglary or other alarming condition is not obviously apparent to someone outside the household.
  • a burglar may stealthily enter and rob a property, or a fire may start and consume most of a household before anyone is aware of what is happening.
  • This system provides information to all members of the network. There is no selective communication from one node to another where a node may transmit only to other nodes it selects for reception. This means that if this system was used for a neighbourhood watch scheme all neighbours would be notified whether they wanted to be or not. This non- selectiveness can lead to casual responses to an alarm as each neighbour may assume another is reacting to the alarm.
  • US Patent No. 4429299 Kabat which describes a communication system operating over an AC power line.
  • a central unit polls slave units with an addressed signal requesting status information.
  • the slave unit then transmits the requested information on receipt of the correct addressed signal.
  • this device does not facilitate the types of communication required by the users. Data may be gathered by a central unit from other units but not distributed. The area of operation of this network is limited to one structure only. This is not suitable for communicating between structures/households, some of which can be separated by large distances.
  • US Patent No. 4400688 Johnson describes a means for communicating over an electric power line in the direction of a load on the power line to the source of power for the power line. Several loads may communicate back to the power source, placing signals on the power distribution line at the same time.
  • the specification does not describe a true broadcast system where a transmitted signal such as alarm may be sent to several receivers at the same time.
  • a transmission may only be received by the power source as it is the only point in this system capable of receiving a signal.
  • the types of communication this system is capable of are limited, with the power source being the only element capable of receiving signals, this source element also unable to transmit signals of its own.
  • the communication system described is not a true network communication system as remote locations may not communicate with each other, one remote station (say a house) being incapable of broadcasting a signal to be received by many other remote stations (such as a neighbour's house). Signals must be initiated by the master position to be acknowledged and acted upon by the remote positions.
  • US Patent No. 4815106 Propp describes a power line communication system specifically designed for local area computer networks. Two or more computers linked together on the same phase power distribution line may communicate freely with each other.
  • the area of operation for this network is limited to the one common phase of the power distribution network for local area.
  • a method of operating an alarm network including the components of, one or more sensors situated at- a first location, a first transceiver situated at the first location, a router connected to the first transceiver, multiple transceivers situated at locations distant to the first location, the multiple transceivers being connected to the router, the method of operating an alarm network characterised by the steps of:
  • the sensor may be any device capable of detecting an alarm condition.
  • the sensor may detect motion of an intruder, the interruption of a security perimeter, emergency conditions such as fire or floods, or the sensor may be a user operated device such as a panic button, or any other suitable device.
  • the connection between the network components is made along a pre-existing network having a primary function other than transmitting alarm signals. This makes for an efficient use of resources as there is no requirement to set up a dedicated line or to separately maintain same. Obviously, considerable cost and time savings would be involved.
  • the pre ⁇ existing network is a power distribution network.
  • the network may be cable, fibre- octic links, or any other network which allows operation of an alarm network as previously described.
  • One advantage is that a power distribution network enables a single alarm signal to be placed on the network that can be received by a number of predetermined locations.
  • Power distribution networks are not serial systems and are never “engaged” - unlike telephone lines.
  • the present invention can be used with respect to any locations, it is envisaged that preferred embodiments of the present invention have the locations as being households which form part of neighbourhood watch group.
  • the first location may be a household but some of the multiple distant locations may be other households or even security firms, emergency services and the like.
  • the transceiver may be a unit separate from the sensors having processing means capable of receiving signals from the sensors and processing these signals into a form actionable by a router.
  • the componentry within the transceiver may include an appropriate micro processor.
  • the transceiver may also include peripheral devices such as displays, key pads, visual and audible alarm units and so forth.
  • the transceiver is included into an existing device at the location.
  • the transceiver is incorporated into a power meter.
  • a power meter is a device that is situated on a power distribution network and usually contained with a household. The primary function of a power meter is to monitor energy consumption.
  • the power meter could incorporate a number of additional functions such as pre ⁇ processing of information relating to energy consumption, making the power meter user friendly by providing information to the householder, have payment options incorporated, and the transmission of information back to the electricity supplier.
  • the power meter can have multiple uses and therefore provide more value for money.
  • the alarm signal may be processed into a form by the transceiver having a number of components to make the processed signal actionable by the router.
  • the transceiver may receive notification from a sensor that an alarm condition has been met. This information may be transmitted to the router along with the location of the transceiver so that the router recognises that alarm condition has been met at a certain household.
  • the sensors may transmit to the transceiver a particular type of alarm condition. This information may also be passed from the transceiver to the router.
  • the alarm signal from the sensor to the transceiver cannot be readily transmitted along the lines forming part of alarm network system from the transceiver to the router. Therefore, in preferred embodiments the function of the transceiver is to process the actual format of the alarm signal received from sensors into a form that can be readily transmitted to and recognised by the router across the alarm network.
  • This change in form may constitute applying a communication protocol into which can be incorporated in error checking, noise elimination and any other features required in a communication system.
  • the router may come in a variety of forms.
  • the router is a stand alone unit connected to the network.
  • the router is connected to the network in such a position that it can receive signals from the transceivers and redirect those signals to multiple transceivers over the network.
  • a preferred embodiment of the present invention has the router associated with or forming part of a power distribution transformer.
  • the function of the router can be to process the signal received from the transceiver into a format (for example, a format that takes into account phase separation) which is receivable by the multiple transceivers in other households on the power distribution network.
  • a format for example, a format that takes into account phase separation
  • the router may also communicate to other routers, either using substantially a similar system to that described in relation to transceivers, or through using another broadcast facility, such as radio transmission.
  • the router may also communicate to a central control centre.
  • This central control centre may be used to send an alarm signal to a security monitoring company or via a telephone link to contact some one outside the local power distribution network.
  • the transceiver may contain a list of all parties to be notified for a particular alarm signal and send the relevant information to the router, or possibly direct to a household if a household is on the same phase line.
  • the router has a distribution list either in addition to or preferably instead of the list held at the original household.
  • the distribution list may contain identification codes which are effectively addresses of the multiple transceivers to which a signal is intended to be received by.
  • the identification code to be included with the formatted signal is determined by matching the address of the original alarm signal from the first transceiver. For example, any alarm signal emanating from a certain household may be matched on a distribution list with multiple transceivers/households which will receive notification of that alarm signal.
  • only certain households may be notified according to the type of alarm signal received from a certain address. For example, all relevant households may be notified if a panic button is pressed, but only some may be notified if there is an intruder alert.
  • the multiple transceivers may receive all addresses from where alarm signals originate and use selection criteria (within the form of distribution list or otherwise) to determine whether to action the receipt of the signal or how to action same.
  • the selection criteria has a primary function of recognising if an identification code sent by the router corresponds to that transceiver.
  • the transceiver recognises that the received signal is relevant, then additional selection criteria can be used to determine what action can be taken in relation to the signal received.
  • the action taken may merely be alerting the householders that a member of the neighbourhood watch has an alarm condition.
  • the action taken may be to identify the address at which there is an alarm condition or even the type of alarm condition.
  • multiple transceivers may be connected to one or more sensors and operate over the alarm network in the same manner as the first transceiver.
  • the present invention in preferred embodiments may consist of standard alarm system within the house having sensors connected to transceivers incorporated into power meters which then connect to a router (or routers) which broadcast the alarm signal to like power meters and other households.
  • a neighbourhood watch system can be readily set up which is linked to the predetermined locations. A person may wish to notify certain neighbours or relatives when an alarm occurs.
  • the neighbours and relatives chosen can only receive an alarm signal if they agree to same.
  • each household can elect whether it will receive or react to codes sent by the alarm household.
  • a neighbourhood may have an irresponsible householder with a continually triggering system. Only households willing to take on the responsibility for monitoring that householder's alarm may do so, while the rest of the neighbourhood may lock that householder's code out. This selective monitoring is an important aspect of the present invention as it encourages co-operation between households to set up a security network or "neighbourhood watch".
  • One advantage of having the distribution list only at a router is that the distribution information only needs to be entered and updated at the one station. This is in preference to updating information at each household on the alarm network.
  • the major advantage in the present invention is that it provides added value to existing systems at minimal cost.
  • the present invention uses an existing network obviating the need to install a dedicated network.
  • the present invention also can be used with existing household components such as a power meter, to make it easier for an electricity supply authority to justify the installation of an expensive power meter into a household, as it can contain added features such as a security system.
  • the present invention also can provide an alternative to the existing alarm control stations presently required in normal household alarm networks.
  • a further advantage of the present invention is that it provides a rapid broadcast system that allows pre-determined destinations to the notified of an alarm, the location and possibly even the type of alarm condition.
  • messages may be sent sequentially to each transceiver which effectively provides a result equivalent to broadcasting to all transceivers.
  • the alarm network including the components of, one or more sensors situated a first location, a first transceiver situated at the first location, multiple transceivers situated at locations distant to the first location, the multiple transceivers being connected to the first transceiver, the method of operating an alarm network characterised by the steps of:
  • Figure 1 illustrates a block diagram of the communication system according to one aspect of the present invention
  • Figure 2 illustrates one means by which a household can be connected to a power supply line.
  • transceivers 1 - 9 are connected to a router 10 via three phase power lines A, B and C.
  • A, B and C phase power lines
  • power companies try to even the load on each phase power line and therefore the distribution of transceivers on the phase power lines as illustrated is common.
  • the router 10 is located at distribution transformer. As the router 10 is connected to each of the phase power lines A, B and C, the router 10 can receive signals to and from each of the transceivers 1 - 9. Therefore, it is also possible for the router 10 to receive a signal from transceiver 1 on a phase power line A and relay the appropriate signal to say transceiver 4 on the phase power line B.
  • the signal relayed may be the same signal as transmitted from transceiver 1, or may be a different signal which is either calculated or looked up by the router 10 in response to the signal from the transceiver 1.
  • transceivers 1 to 3 may communicate with each other without requiring the router 10 as these transceivers share the same phase power lines. The situation is the same for transceivers 4 to 6 which share power supply line B and transceivers 7 to 9 which share the power supply line C.
  • the router 10 has a radio transmitter 11 which enables the router 10 to communicate with similar routers 12 and 13 or a central control station 14.
  • routers 12 and 13 may also communicate to transceivers (not shown) connected to them using similar methods as described previously.
  • the central control station 14 may be the control room electrical utility or an alarm company. It should be seen that this networking enables the emission of a single alarm signal from a household to be transmitted to a number of predetermined locations whether nearby or at a considerable distance.
  • FIG. 2 With reference to Figure 2 there is illustrated an alternatively configured embodiment of this invention. This figure illustrates a method of configuring three separate sensors associated with a transceiver included in a power meter.
  • a message is sent from the sensor to the backup unit via the twisted pair network.
  • the backup unit determines if an alarm should be generated according to the systems configuration and current state. When an alarm is generated, a message is sent from the backup unit to both the control unit and the meter (again via the twisted pair network) detailing the nature of the alarm.
  • the meter upon receiving this alarm message over the twisted pair communications network, generates a new message which describes the location and nature of the alarm and then broadcasts this onto the power line.
  • the power meter Upon receiving an emergency message via the power line network, the power meter determines if the message is for its location. If so, then the power meter sends the location and nature of the alarm to the control unit which then turns on its buzzer for a time to indicate that an alarm has occurred. The meter also informs the sensors which then flash a LED to indicate that the alarm is not located on the premises.

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)

Abstract

Cette invention se rapporte à un système de diffusion d'alarme qui fonctionne de la façon suivante. Les composants de ce système sont un ou plusieurs capteurs placés à un premier endroit, un premier émetteur/récepteur situé sur ce premier endroit, un dispositif d'acheminement connecté au premier émetteur/récepteur, ainsi que plusieurs émetteurs/récepteurs placés à des endroits distants dudit premier endroit. Le procédé de fonctionnement d'un tel système d'alarme est le suivant: (a) au moins un capteur situé au premier endroit transmet un signal d'alarme indiquant un état d'alerte au premier émetteur/récepteur se trouvant au premier endroit; (b) le premier émetteur/récepteur traite ce signal d'alarme sous une forme activable par le dispositif d'acheminement; (c) le premier émetteur/récepteur transmet le signal ainsi traité au dispositif d'acheminement; (d) le dispositif d'acheminement diffuse un signal indiquant un état d'alerte au niveau du premier endroit sous un format recevable par les émetteurs/récepteurs multiples aux endroits distants du premier endroit; et (e) ces émetteurs/récepteurs multiples utilisent des critères de sélection pour déterminer quelle action est réquise en relation avec le signal reçu.
PCT/NZ1996/000044 1995-05-18 1996-05-16 Systeme de communication WO1996036952A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU58471/96A AU5847196A (en) 1995-05-18 1996-05-16 Communication system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NZ272154 1995-05-18
NZ27215495 1995-05-18
NZ280431 1995-11-08
NZ28043195 1995-11-08

Publications (1)

Publication Number Publication Date
WO1996036952A1 true WO1996036952A1 (fr) 1996-11-21

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ID=26651465

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NZ1996/000044 WO1996036952A1 (fr) 1995-05-18 1996-05-16 Systeme de communication

Country Status (2)

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AU (1) AU5847196A (fr)
WO (1) WO1996036952A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0852367A2 (fr) * 1997-01-04 1998-07-08 Siemens Measurements Limited Système de sécurité
WO2002001531A1 (fr) * 2000-06-28 2002-01-03 Globala Trygghetsbolaget Ab Systeme pour services d'alarme
ITUA20163235A1 (it) * 2016-05-06 2017-11-06 Scudomatica Srl Sistema di Allarmi Antintrusione Multipli.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0102229A1 (fr) * 1982-08-27 1984-03-07 Monicell Limited Système d'alarme

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0102229A1 (fr) * 1982-08-27 1984-03-07 Monicell Limited Système d'alarme

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0852367A2 (fr) * 1997-01-04 1998-07-08 Siemens Measurements Limited Système de sécurité
EP0852367A3 (fr) * 1997-01-04 2000-01-12 Siemens Measurements Limited Système de sécurité
WO2002001531A1 (fr) * 2000-06-28 2002-01-03 Globala Trygghetsbolaget Ab Systeme pour services d'alarme
ITUA20163235A1 (it) * 2016-05-06 2017-11-06 Scudomatica Srl Sistema di Allarmi Antintrusione Multipli.

Also Published As

Publication number Publication date
AU5847196A (en) 1996-11-29

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