EP4302472A1 - Système de communication vocale d'urgence (evc) - Google Patents

Système de communication vocale d'urgence (evc)

Info

Publication number
EP4302472A1
EP4302472A1 EP22714501.8A EP22714501A EP4302472A1 EP 4302472 A1 EP4302472 A1 EP 4302472A1 EP 22714501 A EP22714501 A EP 22714501A EP 4302472 A1 EP4302472 A1 EP 4302472A1
Authority
EP
European Patent Office
Prior art keywords
outstations
evc
loop
evc system
connection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22714501.8A
Other languages
German (de)
English (en)
Inventor
Anthony Morgan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baldwin Boxall Communications Ltd
Original Assignee
Baldwin Boxall Communications Ltd
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 Baldwin Boxall Communications Ltd filed Critical Baldwin Boxall Communications Ltd
Publication of EP4302472A1 publication Critical patent/EP4302472A1/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
    • 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
    • G08B25/04—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 a single signalling line, e.g. in a closed loop
    • 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
    • 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
    • G08B25/08—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 communication transmission lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/005—Alarm systems in which substations are interrogated in succession by a central station with substations connected in series, e.g. cascade
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/006—Alarm systems in which substations are interrogated in succession by a central station with substations connected to an individual line, e.g. star configuration

Definitions

  • the present invention relates to an emergency voice communication (EVC) and fire telephone system able to support outstations connected to control panels either via 2 core radial connections and/or via a 2 core fault tolerant loop containing multiple outstations.
  • EMC emergency voice communication
  • the present invention seeks to provide an alternative device which preferably addresses one or more of the problems presented by prior art arrangements.
  • an emergency voice communication (EVC) system which comprises at least one termination point (TP) to which outstations are connected, wherein the outstations are connected to interchangeable zone boards located within the termination point where first zone boards allow connection of outstations in a loop and second zone boards allow radial outstation connections.
  • TP termination point
  • the EVC system comprises a series of termination points (TP).
  • first outstations are connected in a loop to a zone board and second outstations are connected radially to a zone board.
  • outstations are connected both radially and in a loop.
  • the zone boards are separate.
  • connection between zone boards and outstations is via a 2 core cable connection.
  • the cable comprises two copper cores.
  • the cable carries power, control and audio data.
  • the cable comprises no more than two cores.
  • the cable comprises a plurality of cores, but only two cores are connected between a zone board and an outstation.
  • the two cores connected carry power, control and audio data.
  • polarity of the connection between zone boards and outstations is not significant. This provides the advantage that the connection can be connected with reverse polarity.
  • outstations are configurable by the end user to be connected as a loop or radially. This provides the advantage of reducing the amount of spare units that will need to be held in order to maintain installed systems.
  • outstations are as described in BS5839-9, Type A or Type B.
  • disabled toilet alarm systems are connected to first or second outstations or to a specialised unit designed for connection of disabled toilet alarms only.
  • the disabled toilet alarm systems are BS8300 compliant.
  • termination points comprise a user interface (TPUI) or no user interface (TP) to allow communication with connected outstations.
  • TPUI user interface
  • TP no user interface
  • a standalone user interface is provided which can be connected to a termination point.
  • communication to outstations connected to a termination point without a user interface is possible via a user interface fitted / connected to another termination point.
  • termination points can be connected together via a fault tolerant loop.
  • the fault tolerant loop comprises a wired network utilising either copper, fibre or both.
  • connection utilises Orthogonal Frequency Division Multiplexing (OFDM) Narrowband Power Line Communication (PLC) modems.
  • OFDM Orthogonal Frequency Division Multiplexing
  • PLC Narrowband Power Line Communication
  • audio compression is used. This provides the advantage of reducing the bit rate required so that Narrowband PLC modems can be used. This is considered to be innovative as Narrowband PLC has not been used in this way before for EVC audio transmission applications.
  • Narrowband PLC allows for longer loop lengths than other communication methods, a reduced number of conductors and also allows for the connections to be made polarity insensitive. This reduces the amount of additional equipment required for some large installations as repeaters are not required and reduces the amount of failures / faults due to incorrect installation.
  • outstations configured for loop connection have the ability to sense short circuit and open circuit conditions present in the loop.
  • each outstation has the ability to break the loop in order to mitigate the consequences of a shorted connection.
  • a fault is indicated at a user interface.
  • FIG. 1 shows a diagram of an embodiment of a termination point (TP) and connected outstations according to the invention.
  • Figure 2 shows a diagram of termination points connected together via a fault tolerant loop wired network.
  • the invention provides a device having features of a combination of two or more, three or more, or four or more of the aspects described herein.
  • a device in accordance with the invention comprises all aspects of the invention.
  • an outstation is interpreted to have the meaning as described in BS5839-9, Type A or Type B.
  • an outstation is a unit, located at a strategic point in a building or building complex, that allows two- way voice conversation with a master station.
  • a Type A outstation is an outstation using a telephone-style handset for voice communication, so that the user's mouth and ear can be as close as possible to the microphone and ear-piece, respectively.
  • a Type B outstation is an outstation using an intercom-style fixed microphone and adjacent loudspeaker, normally mounted on a wall or other vertical surface.
  • the term "master station” or “termination point” is interpreted to have the meaning as described in BS5839-9.
  • a master station is a control unit located at a central control point which controls an EVC system.
  • EVC system is interpreted to have the meaning as described in BS5839-9.
  • an EVC system is a system that allows voice communication in either direction between a central control point and a number of other points throughout a building or building complex, particularly in a fire emergency situation.
  • the invention provides a system wherein multiple outstations are connected to an emergency voice communication system.
  • communication and power transfer is provided which allows outstations to be connected to a control system utilizing both loop and radial connection methods simultaneously on one system. Connections to outstations are made utilizing 2 core cables, where the polarity is not important regardless of the connection method used. This provides the advantage that using the most suitable connection method significantly reduces the amount of cable required.
  • an embodiment of the invention comprises an EVC system which includes a termination point (TP) (7) to which outstations (2, 3, 4, 5) are connected.
  • Outstations (2, 3, 4, 5) are connected to interchangeable zone boards (8, 9) located within the termination point (7) where first zone boards (9) allow connection of outstations (2, 3) in a loop and second zone boards (8) allow radial outstation connections to outstations (4, 5).
  • An EVC system contains at least one master station (7).
  • the EVC system is controlled from a master station (7) located at a central control point such as a fire control centre or security room or, if there is no manned control centre, at a main fire and rescue service access point.
  • a master station (7) is expected to be permanently manned in an emergency. In a fire emergency situation, control might be taken over by a fire officer.
  • a master station (7) In a large building or complex, there may be more than one point from which evacuation or other emergency situations can be controlled. It may then be appropriate for a master station (7) to be installed at each such location. Where more than one master station (7) is installed in a building or complex, one master station (7) needs to have overall control of the EVC system at any given time, the remainder of the "master stations" (7) effectively becoming repeaters.
  • a master station (7) communicates with a number of outstations (2, 3, 4, 5) throughout a building or complex. It needs to be powered from the normal low voltage electricity supply in a building or complex, but has a secondary power supply comprising a battery which is kept fully charged.
  • a master station (7) is able to receive calls from all outstations (2, 3, 4, 5). Where required, it also has a facility to call each individual outstation (2, 3, 4, 5), group of outstations or all outstations. As a minimum, a master station (7) will has a telephone- style handset or microphone and loudspeaker for voice communication purposes, controls for making calls to, and receiving calls from, outstations, indicators to identify incoming calls, and fault and status indicators. Under the control of the master station (7), a "conferencing" facility may be available for a limited number of outstations (2, 3, 4, 5). In a complex of different buildings, it may be desirable to have a voice communication link (10, 11) between a master station (7) in one building and master stations (7) in other buildings.
  • Outstations (2, 3, 4, 5) are configurable by the end user to be either wired as loop (2, 3) or radial (4, 5) outstations.
  • BS8300 compliant disabled toilet alarm systems (1, 6) can connected to first (2, 3) or second outstations (4, 5) or to a specialised unit designed for connection of disabled toilet alarms only.
  • Termination points (7) comprise a user interface (TPUI) or no user interface (TP) to allow communication with connected outstations (2, 3, 4, 5).
  • TPUI user interface
  • TP no user interface
  • a standalone user interface (12) can be provided which can be connected to a termination point (7).
  • communication to outstations (2, 3, 4, 5) connected to a termination point (7) without a user interface will be possible via the user interface fitted / connected to another termination point (7).
  • Termination points (7) can be connected together via a fault tolerant loop.
  • the fault tolerant loop comprises a wired network utilising either copper, fibre or both.
  • connection method between termination points (7) and outstations (2, 3, 4, 5) is via a 2 core copper cable (10, 11) connection which carries power, control and audio data.
  • connection (10, 11) between termination points (7) is not significant.
  • connection method utilises Orthogonal Frequency Division Multiplexing (OFDM) Narrowband Power Line Communication (PLC) modems.
  • OFDM Orthogonal Frequency Division Multiplexing
  • PLC Narrowband Power Line Communication
  • audio compression is used.
  • Outstations (2, 3) configured for loop connection have the ability to sense short circuit and open circuit conditions present in the loop. Each outstation (2, 3) has the ability to break the loop in order to mitigate the consequences of a shorted connection. In use, when this occurs a fault is indicated at the user interface (12).

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

Un système EVC comprend au moins un point de terminaison (TP) auquel des stations extérieures sont connectées. Les stations extérieures sont connectées à des secteurs interchangeables situées à l'intérieur d'un point de terminaison où des premiers secteurs permettent la connexion de postes éloignés dans une boucle et des seconds secteurs permettent des connexions de postes éloignés radiales.
EP22714501.8A 2021-03-05 2022-03-04 Système de communication vocale d'urgence (evc) Pending EP4302472A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2103139.8A GB2605125A (en) 2021-03-05 2021-03-05 Emergency voice communication system
PCT/GB2022/050576 WO2022185070A1 (fr) 2021-03-05 2022-03-04 Système de communication vocale d'urgence (evc)

Publications (1)

Publication Number Publication Date
EP4302472A1 true EP4302472A1 (fr) 2024-01-10

Family

ID=75472671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22714501.8A Pending EP4302472A1 (fr) 2021-03-05 2022-03-04 Système de communication vocale d'urgence (evc)

Country Status (3)

Country Link
EP (1) EP4302472A1 (fr)
GB (1) GB2605125A (fr)
WO (1) WO2022185070A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6998962B2 (en) * 2000-04-14 2006-02-14 Current Technologies, Llc Power line communication apparatus and method of using the same
JP5346513B2 (ja) * 2008-07-22 2013-11-20 京楽産業．株式会社 ポーリング通信システム
GB2471860B (en) * 2009-07-14 2011-12-07 Apollo Fire Detectors Ltd Signal and devices for wired networks
JP5984029B1 (ja) * 2015-12-24 2016-09-06 パナソニックＩｐマネジメント株式会社 ドアホンシステムおよび通信制御方法
GB2581349A (en) * 2019-02-12 2020-08-19 Johnson Controls Fire Prot Lp Voice alarm device

Also Published As

Publication number Publication date
WO2022185070A1 (fr) 2022-09-09
GB2605125A (en) 2022-09-28
GB202103139D0 (en) 2021-04-21

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