GB2340641A - Secured premises intruder alarm - Google Patents

Abstract

An electronic receiver of RF modulation analogue/digital signal, is adapted to be connected to a key-ring and will be automatically activated by an RF service provider, who linked by telephone to a premises alarm, has received warning of intrusion onto such premises. On activation the alarm will sound a clearly audible high frequency intermittent tone and will feature flashing LED. This promises all proprietors and key-holders an effortlessly portable, and unrestricted immediate warning of intrusion at secured premises wherever they may be, and hence direct control to those who are most motivated to act to protect a disturbed building, the owners themselves.

Description

SECUM PREWSES UrRUDER AL,. 2340641 This mvn relates to an om reMver of RF

modulation AWogue signal, which when activated by a service provider m response to warning of unwanted intrusion onto secured prentse, will alert the owner by sounding a tone and flashing a red light.

There are currently many secured premises, alarm systems in exist which will alert of unwanted intrusion. The first ople, A Being the traditional siren or bell alarm which is attached to properties externally which wig sound when activated and alert those in the immediate vicinity that there is an unwanted intruder on the premises. It is also poswaffile to be at of an intrusion onto soxwred premises by, B. Companies which when alerted by a telephone link to a burglar alarm system employ manpower to contact keyholders or police who will attend the scene of the on. Also a less well known invention, C. Facilitates the automatic dialling of up to four telephone, mobile and memge pager numbers in the event of an acdvated alarm triggering a coon telephone Em. M of the examples cited however prove disadvantageous in one respect or er.

For instance, r to the first option, A, the security of a home or business is dependent upon the interest and goodwill of those who are in the immediate vicinity to the sounding alarm. Home or business owners who are not on the premisu may only discover that they have had intruders m th& reum and if the goodwill of their immediate neighbours has not prevailed, it is likely that most of valuable contents will have left with the intruders as the alarm has continued to sound unacknowledged. The second option B., is dependent on the vigilance of paid shift workers who may not share the same motivation to act to protect prop as their owners. Linked to this option, nominated key-holders and police may be busy elsewhere and unavailable, as may be the owners of the premises themselves if not at a designated address. The 1 option C, does better to promise to inform of a le intrusion. However the success of the system depends on an owner, relative or key-holder being in contact with an installed or mobile telephone, or mcmge pager, so that they may be alerted, The fb form of communication restricting movement and the latter two options for m the population both umecessary and bulky.

This invention promises proprietors an effbrtlesdy portable and unrestricted immediate warning of intrusion at secured premises, and hence direct control to those who are most motivated to act to protect a disturbed buildin& the owners themselves, Existing technology as described previously currently anows a telephone line to be linked to a burglar alarm s which will wd and send a signal to a service provider. In the event that the service provider receives telephone transirtission that an has been activated, this Proposed mvention will receive a signal transmitted from the service pro m response to that information, and wig alert the owner of tbe premises, wherever he or she may be, of the possible intrusion by sounding a high frequency intermittent tone and flashing LED. Mirtually no conscious egort wig be required by proprietors to carry the receiver, or to remember to take the alum out on leaving the premises. Both points being due to its proposed small dimensions but most inventively its attachment to. a key ring facilitates its ewe portability. It can be as that most people automatically take their keys and carry them with them, whenever and after they lock up and leave such pren-ds%. On being alerted by the alarm, secured premises owners could choose if possible, to attend the dig premises themselm. They may cad a neighbourhood watch contact a relative or fliend, or inform the police directly. This invention offiers proprietors peace of mind and direct control to take action wherever they may be, should unwanted intrusion occur.

1 1-1 1 - The receiver will be housed in a lightweight, compact plastic casing. it will feature a robustly designed hole at the outer edge through which a metal ring will pass, which will facilitate its attachment to a key- fing. The unit will alw feature a depressed onloff nvitch which win allow the unit to be switched into reception mode or switched off without being inadvertently switched to the contrary by handling or carriage of the keys. The unit will also house a small. battery and a removable part of the casing to allow the battery to be replaced when necessary. Its internal electronics will fiteffitate the unit's reception of RF modulation analoguedigital telecommunications signal and subsequent output of a high frequency interminent tone and flashing LED. The facility fbr both tone and flashing LED to activate simultam usly will allow both able bodied and disabled or blind) to be alerted of possible intrusion.

Preferably the LED will feature on both sides of the receiver and possibly at the opposite end to the key ringend. This will make clearly visible to those py sighted or deaf individuals that the alarm has been activated should the position of the receiver within a bunch of keys obscure the flashing LED signal. Also the frequency and volume of the alarm tone would be set so as to be audible at a reasonable distance, and in the event that the receiver has been placed in a handbag, pocket or is inside a car perhaps attached to car ignition keys as the vehicle is moving. This technology however is not new and can be witnessed in most tclexwmnunications apparatus alr for instance in message pagers and mobile telephones.

A drawing of the proposed invention (Figure 1), not to scale, is ofiTed. What ffillows is an explanation of the features described, 1. Relates to the end of the unit being designed into a robust hole. It is proposed that this feature will possibly be formed as an extension o and moulded of the entire cuing itself. This would be to ensure its durability.

2. Is the metal ring which passes through the hole which will be created so as to be attached securely to a key ring.

3. Represents the depr on/off switch so as to facilitate the units reception or switching off in the event that the alarm has sounded or that the receiver does not need to be in use.

4. Shows the LED which will flash intermittently. The site of the LED at this time however is only proposed and although technologically available subject to future design.

5. Portrays the existence of the receivers facility to emit an intermittent alarm tone. Once this feature is also technolodgicafly available and subject to fie design.

6. Finally relates to the removable section of casing which will facilitate the insertion and removal of the battery when required.

7. Receiver housed in a durable plastic case.

1 3 ' CLAEWS 1. A key-ring receiver of RF Modulation analogue/digital sigrW comprising an audible tone output and flashing LED to alert the carrier of its acn, the receiver being designed to facilitate its easy handling and adapted to ensure its attachment to a key ring.

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