EP0391566A1 - Alarmsystem - Google Patents
Alarmsystem Download PDFInfo
- Publication number
- EP0391566A1 EP0391566A1 EP90302919A EP90302919A EP0391566A1 EP 0391566 A1 EP0391566 A1 EP 0391566A1 EP 90302919 A EP90302919 A EP 90302919A EP 90302919 A EP90302919 A EP 90302919A EP 0391566 A1 EP0391566 A1 EP 0391566A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- alarm
- connection device
- audible
- power connection
- alarm system
- 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.)
- Withdrawn
Links
Images
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
- G08B25/01—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 invention relates to alarm systems.
- the first type is the old fashioned type which has a simple control panel, and a number of detectors and door and window contacts, all connected together by wires. Although such systems are relatively cheap, an extensive amount of wiring has to be carried out, which is a messy and time consuming job, requiring a skilled operator, not just to produce a neat, finished job, but from the safety point of view, because of the high power levels involved.
- the second known general type is the wireless system, which does not require as much wiring, but tends to fall in the top price category, putting it outside the reach of many household budgets.
- these known wireless systems reduce the amount of wiring involved, a certain amount of sophisticated, high power, wiring is nevertheless required, and a skilled operator is still required to neatly and safely install the system.
- the invention solves the problem of providing an alarm system which can be quickly, neatly and safely installed, using an unskilled operator.
- an alarm system comprises at least one audible alarm, at least one detector, at least one control unit which communicates with the alarm in a remote, wireless manner, and is arranged to be hand held, and at least one power connection device for supplying power to the alarm, the power connection device including a step down transformer which enables the alarm and the power connection device to be interconnected by wiring which carries low voltage and can therefore be installed safely by an unskilled person.
- the alarm preferably comprises a siren, but any other audible alarm, such as a bell may be used.
- the audible alarm is arranged in a housing, for example, for mounting on the outside of a building, the housing also enclosing control circuitry for the system.
- the control circuitry preferably includes logic circuitry.
- the control circuitry preferably includes a battery charger for charging a back-up battery unit for use in the event of mains failure.
- the back-up battery unit is also positioned within the housing.
- the control circuitry preferably includes a secondary audible sounder to give a user of this system audible signals relating to the status of the system.
- first audible signal to indicate when the system has been switched on
- second, different audible signal to indicate when the system has been switched off.
- the control circuitry may include a tone generator for generating tones used by the secondary audible sounder.
- the control circuitry may include timing circuitry to control the pattern of sounds produced by the secondary audible sounder.
- the control circuitry preferably includes at least one tamper switch which sets off the alarm if the housing is tampered with.
- the control circuitry preferably includes a resetting circuit which re-sets the alarm after it has been sounding for a pre-determined time, for example ten to twenty minutes.
- the control circuitry preferably includes receiving means to receive signals from the detector and control unit.
- the signals are radio wave signals.
- the detector may comprise a passive infra-red volumetric detector sensitive to body heat and movement.
- each detector may be arranged to communicate with the alarm in a remote, wireless manner.
- detectors such as door switches, window switches and pressure pads.
- the control unit may have an on/off push button arranged so that pushing the button once activates the alarm system and pushing the button a second time then de-activates the system.
- the on/off switch may be such that if the alarm is sounding, pressing the button switches the alarm off.
- the power connection device may comprise a three pin plug for plugging into a conventional three pin socket, the step down transformer being incorporated in the plug.
- the plug includes a second secondary audible sounder to give an audible indication as to the status of the system, to a user positioned within a building.
- the plug may also have an outlet for sending a signal to an auto-dialler telephone unit.
- an alarm system comprises at least one audible alarm, at least one detector, and at least one control unit which communicates with the alarm in a remote, wireless manner, and is arranged to be hand held, thus avoiding the need for a wall mounted control panel.
- an alarm system comprises at least one audible alarm for mounting at one location (e.g. outside a building) and at least one power connection device for positioning at a second location (e.g. at a mains supply socket inside the building), the power connection device including a step down transformer which enables the alarm and power connection device to be interconnected by wiring which carries low voltage and can therefore be installed safely by an unskilled person.
- an alarm system comprises at least one audible alarm arranged in a housing, and at least one device for sending an actuation signal to the alarm in a remote, wireless manner, the control circuitry for the alarm system being arranged in the alarm housing.
- FIG. 1 is a diagrammatic block diagram of the embodiment of alarm system according to the invention.
- the system simply comprises an alarm housing 10, a three pin plug unit 11, a compact remote hand set 12 with just two control buttons 13 and 14, and any desired number of remote operating detectors, three of these detectors, 15, 16 and 17, being shown in the figure.
- Each of the passive, infra-red volumetric detectors comprises a conventional unit, known in itself, but arranged, when it senses body heat and movement, to send an actuation signal, in the form of a radio signal, from an aerial 18 on the detector, to a receiving aerial 19 on control circuitry 20 housed within the housing 10.
- Signals received by the aerial 19 are picked up by a narrow band receiver 21, and the resultant signal is de-coded by de-coders 22 and passed to a logic circuit 23.
- the logic circuit 23 is connected via a driver unit 24 to a siren 25.
- housing 10 which also houses the siren 25.
- the housing 10 is simply connected by four core bell wire 26 to the plug unit 11.
- a device 27 for providing a regulated power supply Built into the plug unit 11 is a device 27 for providing a regulated power supply, and this device 27 includes a step down transformer so that the power carried by the wire 26 is of low, safe levels.
- the plug unit 11 also contains an audible sounder 28 and an auto-dialler outlet 29, which will be described in more detail later.
- the alarm system requires minimal wiring to instal the system.
- the only hard-wired connection is between the housing 10 and the plug unit 11, and this wiring is simple, low power, bell wiring.
- the housing 10 is mounted on the outside of the building and it is only necessary to drill a single hole through the wall of the building to take the wiring 26.
- This wiring is inobtrusive and can be easily clipped or otherwise secured in position in a neat manner, even by an unskilled person. Even if the wiring is accidentally damaged, it is unlikely that an accident will result, because of the low power carried by the wiring.
- the detectors such as 15, 16 and 17 are simply screwed onto wall locations in any desired area which is to be monitored for intruders. There is no need to interconnect the detectors with the rest of the alarm system by means of wires, and there is no need to instal a special, wall mounted control panel.
- the compact hand set 12 can be then carried around freely by a user of the system, and this hand set is all that is necessary to control the system.
- the hand set 12 can be used either inside the building, for example to set the system at night, or outside the building, when leaving the building unoccupied.
- the hand set 12 transmits control signals, in the form of radio signals, from an aerial 30 to the receiving aerial 19 of the control circuitry 20 positioned within the housing 10.
- the audible sounder 28 emits a special pattern of audible tones to let the user know that this system has been set.
- This pattern of tones is created by a tone generator 31 and timing circuitry 32 associated with the logic circuitry 23.
- the housing 10 includes a second audible sounder 33 which repeats the tones of the audible sounder 28, so that a user of the system hears the pattern of tones, regardless of whether the user is inside or outside the building at the time.
- any unauthorised movement within any of the monitored areas causes a signal to be transmitted from one of the aerials 18 to the aerial 19. This causes the logic circuitry to set off the siren 25.
- the logic circuitry 23 is connected to an automatic re-setting circuit 34, which re-sets the system after the siren has been sounding for from 10 to 20 minutes.
- the system can be deactivated by pressing the button 13 a second time. This causes the audible sounders 28 and 33 to produce a different pattern of tones to indicate to the user that the system has been deactivated.
- the control circuitry includes a battery charger 35 and the back-up battery 36, to provide power for the system in the event of mains failure.
- a regulator unit 37 within the control circuitry provides a stable DC output, free from fluctuations of the mains supply, to be used by the internal circuitry, and also to trickle charge the back-up battery 36, via the charger 35, when mains supply is available.
- the second button 14 on the hand set 12 is a "panic" button. If this button is pressed at any time, for example in the event of an accident or a sudden intrusion, the siren 25 will sound for the full period of 10 to 20 minutes, unless the button 13 is subsequently depressed.
- the control circuitry 20 is also provided with at least one tamper switch 38, for example in the form of a trembler switch, this switch being arranged to close if the housing 10 is tampered with, thus setting off the siren 25.
- tamper switch 38 for example in the form of a trembler switch, this switch being arranged to close if the housing 10 is tampered with, thus setting off the siren 25.
- the auto-dialler outlet 29 in the plug unit 11 provides an output signal to an optional extra in the form of a telephone auto-dialler unit (not shown). If this optional extra is connected to the outlet 29 and a telephone, then if the siren 25 is set off, the unit will automatically dial a selected telephone number, for example 999.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8907830 | 1989-04-07 | ||
GB898907830A GB8907830D0 (en) | 1989-04-07 | 1989-04-07 | Alarm systems |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0391566A1 true EP0391566A1 (de) | 1990-10-10 |
Family
ID=10654605
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90302919A Withdrawn EP0391566A1 (de) | 1989-04-07 | 1990-03-19 | Alarmsystem |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0391566A1 (de) |
GB (1) | GB8907830D0 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2260401A (en) * | 1991-08-10 | 1993-04-14 | Christopher Newton | Security systems |
EP0675469A1 (de) * | 1994-03-24 | 1995-10-04 | Baumer Holding AG | Funkalarm-Sicherheitssystem |
EP2439709A1 (de) * | 2010-10-05 | 2012-04-11 | Cooper Security Limited | Alarmanlage mit Signalübertragungsmitteln im Stromversorgungsgehäuse |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2913266A1 (de) * | 1979-04-03 | 1980-10-16 | Ecotron Ges Fuer Elektronische | Verfahren zur drahtlosen ueberwachung von objekten, insbesondere von gebaeuden |
US4581606A (en) * | 1982-08-30 | 1986-04-08 | Isotec Industries Limited | Central monitor for home security system |
GB2186404A (en) * | 1986-02-06 | 1987-08-12 | Notifier Co | Security system with signal accuracy checking |
US4737770A (en) * | 1986-03-10 | 1988-04-12 | Interactive Technologies, Inc. | Security system with programmable sensor and user data input transmitters |
US4772876A (en) * | 1986-10-10 | 1988-09-20 | Zenith Electronics Corporation | Remote security transmitter address programmer |
US4825457A (en) * | 1988-04-25 | 1989-04-25 | Lebowitz Mayer M | Cellular network data transmission system |
-
1989
- 1989-04-07 GB GB898907830A patent/GB8907830D0/en active Pending
-
1990
- 1990-03-19 EP EP90302919A patent/EP0391566A1/de not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2913266A1 (de) * | 1979-04-03 | 1980-10-16 | Ecotron Ges Fuer Elektronische | Verfahren zur drahtlosen ueberwachung von objekten, insbesondere von gebaeuden |
US4581606A (en) * | 1982-08-30 | 1986-04-08 | Isotec Industries Limited | Central monitor for home security system |
GB2186404A (en) * | 1986-02-06 | 1987-08-12 | Notifier Co | Security system with signal accuracy checking |
US4737770A (en) * | 1986-03-10 | 1988-04-12 | Interactive Technologies, Inc. | Security system with programmable sensor and user data input transmitters |
US4772876A (en) * | 1986-10-10 | 1988-09-20 | Zenith Electronics Corporation | Remote security transmitter address programmer |
US4825457A (en) * | 1988-04-25 | 1989-04-25 | Lebowitz Mayer M | Cellular network data transmission system |
Non-Patent Citations (1)
Title |
---|
FUNKSCHAU * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2260401A (en) * | 1991-08-10 | 1993-04-14 | Christopher Newton | Security systems |
EP0675469A1 (de) * | 1994-03-24 | 1995-10-04 | Baumer Holding AG | Funkalarm-Sicherheitssystem |
US5774050A (en) * | 1994-03-24 | 1998-06-30 | Baumer Holding Ag | Radio alarm security system |
EP2439709A1 (de) * | 2010-10-05 | 2012-04-11 | Cooper Security Limited | Alarmanlage mit Signalübertragungsmitteln im Stromversorgungsgehäuse |
GB2484462B (en) * | 2010-10-05 | 2016-05-25 | Cooper Security Ltd | Power supply |
Also Published As
Publication number | Publication date |
---|---|
GB8907830D0 (en) | 1989-05-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19910405 |
|
17Q | First examination report despatched |
Effective date: 19930901 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19940112 |