GB2206719A - Combined stand alone intruder and fire control system - Google Patents

Abstract

A combined intruder and fire control system which is fully automatic or manual system which is self contained in one unit. The intruder system can either with its own self contained sensor or with remote sensors detect the presence of an intruder, trigger off a device both audible and visual and send a signal to a remote point. The fire control system receives signals from remote detection sensors and monitors the signals to the British Standard procedure. It also gives an audible alarm and a visual signal on receipt of the confirmed detection. The system then automatically discharges an extinguishant medium, in the form of Halon 1301. The system has the facility of being manually operated or automatic and can trigger remote device to transmit appropriate signals. The system is powered by batteries that are maintained by a mains supply. The system is in itself a total intruder and fire control system that is contained in one cabinet. <IMAGE>

Description

AUTOMATIC SINGLE MODULE STAND ALONE PIECE OF EQUIPMENT FOR INTRUDER AND FIRE MONITORING DETECTION ALARM AND EXTINGUISHER USING HALON GAS TECHNICAL FIELD This invention relates to an automatic single module stand alone piece of equipment for intruder detection and alarm and fire monitorinv. detection, alarm and extinguishing using Halon as.

BACKGROUND Surveillance and protection of valuables, prooertv. and @ersonnel against both intruders, and fire under one svstem for single zones or areas is not currently covered.

Historicallv. intruder and surveillance svstems have been the perogative of electricians and have generally worked on a 12 volt electrical svstem. @oing into an alarm state on open circuit.

Passive infra red detectors were then introduced. Thev generally operate on a closed circuit. constant monitoring principle. The intruder alarm panels and equipment are covered bV British Standard 4737.

Statisticallv, premises and prcoertv are more prone to incidents of theft and vandalism than damage bv fire. The insurance damage claim costs are reverscd and the cost of rebuilding and replacing complete premises and property are considerablv hither with fire oripinated claims.

There is now the prevalence of vandals and thieves scttinz fire to the premises to destrov evidence or as an act of sheer vandalism.

Fire protection has historically been controlled bv fire officers and insurance company 5 surveyors recommending protoction to the orooertv bv extinguishers. These range from sand buckets to full sprinkler svstems. As technolog@ has progressed.the extinguishing media have chanped. The latest technclcpv uses Halon gases. These precautions have also been covered bv law in many instances where the public and working oersonnel are invloved. Specifications for these svstems are aeneraliv drawn up bv qualified fire officers and consultants. These fire protection installations are generally verv complex and require building into the premises.

and involve quite considerable structural and enoinecrinp works.

The regulations on the equipment and operations of the detection system, alarm system and extinguishing cvcle are verv stringent and are covered bv British Standards B5 3116 : Part 4 : 1994 and BS 5839 : Part 1 : 1980 and BS 5306 : Section 5.1. : 1982 and also 85 6266 : 1982.

Therefore the cost of the equipment for fire detection, alarm,and extiguishant release is correspondingl@ higher than for intruder systems. Halon gas is expensive and therefore the accidental release with the accom@anving penalties of evacuation must be more stringently prevented.

Fire protection control and extinguishant systems are operated bv a 24 volt suDply and work on a closed circuit constant monitoring system.

The two factions of the alarm industry Ci.e. Fire and Security), have each maintained their own territory and have not considered any scrious venture to incorporate dual svstems. Statistically the fire installations of combined alarm and extinguishing equipment have been performed bV the larper national companies.

The fire alarm only and security intruder alarm systems are generally covered bv the smaller local companies.

The market place has tended to polarise towards the laser companies installinp total concept svstems in multi zone premises. The bottom end of the market is covered bv individual small alarm companies installinp alarm onlv and intruder protection as a separate unit. This leaves the fire protection cover as purely by hand operated extinguishers.

The problem with this condition is that fire protection is only available as and when the premises are occupied, and the personnel are available and capable of taking immediate steps.

The other disadvantape is that the extinguishing medium could well be water or foam. The use of water or foam creates another drawback, in that the protected area has now been deluped with a contaminatinv liquid with the consequential lon term damage and results.

With the advent of micro chip technolopy in the controls and detection equipment and the advanced low tonicity Halogen 1301 gases, it is possible to combine the intruder and total fir cover in one system.

Consequently there is a distinct gap in the market which covers the single erea or zone of premises or property for both total fire and intruder protection. This invention is designed to fill that gap .

The applications for use could be :- single office workinp area.

small workshoo, private collection stored at home. art galler@.

museum, remote installation of equipment, Ministry of Defence installation, radio studio, control room, small single area shop, computer room, electronic data processing area, garage. kitchen, cash office, booking office, work area using flammable products, doctors surperies, drup stores, dentists surperies, mobile display trailers or vehicles, exhibitions in demountable buildings or marquees, remote stores, inside aircraft on the pround, marine vessels, marine craft, vaults and strong rooms.

This invention was designed to give fire and intruder cover to a market which has been by-passed bv the larder equipment and not covered by the smaller, simpler equipment.

This invention has been specifically designed to conform to all the relevant British Standards and using all the latest technology and materials available.

*********************************** TECHNICAL DESCRIPTION According to the present invention. there is provided a rigid metal cabinet in the form of a box, the front of which of which is in panels which act as doors for access, doors with control panels mounted therein and panels which have mounting facilities and monitoring windows therein and panels with facilities thereon for devices for monitoring. sounding, illuminating and discharging of gas.

The present invention provides for plums and sockets for the connection of power, remote sensing devices,and remote signalling to or from other devices in the intruder or fire monitoring function.

The lowest section of the invention cabinet provides for the housing therein of the cylinder of Halon gas incorporating the Fas oressure monitoring device. actuatin, device and the outlet discharge pipe connection. other with the restraining devices.

The invention cabinet houses a suitable mounting shelf and restraining device for the standby emergency batterv equipment.

The invention cabinet houses suitable mounting brackets for the electronic printed circuit boards and anciJ liary electrical equipment for servicing the controls.

The invention cabinet has mounted on the front face thereon a control panel for the overall manual controlling system.

The invention cabinet has a panel for the mountie of the intruder sensing device.

The invention cabinet has mounting devices to give audible warning for the operation of either or both the intruder or the fire monitoring capability of the invention.

The invention cabinet has mounting devices to give a visual illuminated warning for the operation of either or both the intruder or the fire monitoring capability of the invention.

The invention cabinet contains intcrnallv all the necessary connection wiring for the operation of the invention The invention cabinet is equipped with devices which are suitably positioned to monitor any unauthorised tapering or interferance and are so connected to give both visual and audible warning of their operation.

The invention cabinet is equipped with a suitably designed and positioned discharge nozzle to elect the Halon gas from the cylinder through an internal pipe within the invention cabinet.

***************************** A specific embodiment of the invention will now be described by waV of example with reference to the accomoanvin drawing in which : Figure 1 shows in perspective a part sectioned view of the invention without remote sensors in connection to the invention.

Referring to the drawing the invention is housed in a cabinct 1 with anti-tamper devices attached thereto and the statutory label indicatinp the eouioment discharges Halon gas.

The Halon gas is housed in a cylinder 2 to which is attached a means of displaying the pressure of the contents and an actuating mechanism for electronicallv releasing the content of the cylinder.

A pipe 3 of suitable dimensions to comply with the British Standards is attached to the cylinder 2 and connects it to the ejector nozzle 10.

Electronic connectors 4 are mounted in a suitable position to receive plugs or sochets for the transmission and reception of signals.

The main control panel 5 covers the in service use facilities of the invention and dis@lavs illuminated signals to denote mode of operation, status, faults, warnings indications of actuation.

The sounders cover 6 houses the audible means of warning and alarm bv various tones and sounds in multiple cptions selectable to suit the operational site.

The beacons ? and 8 are pulsating light of differing colours to denote which aspect of the invention has been actuated. for example the red beacon would denote a fire has been detected and either blue or white wouid denote an intruder has been detected.

The intruder detector 9 could be of a passive infra red or ultrsonic t vpe or both together depending on the particular site or field of operation.

The operation sequence of the invention conforms to the relevant British Standards as follows: BS 4737 Part 1 BS 3116 Part 4 BS 5839 Part 1 BS 5306 Section 5:1 BS 6266

Claims (12)

1. CLAI@S 1 A combined stand alone intruder detection and alarm s@@@em tog@ther with a fire detection. monitoring alarm and extinguishing system.
2. 2 A combined system as claimed in Claim 1 wherein the invention is housed in one metal cabinet or composite material cabinet ir which the normal opeiational equipment is housed.
3. 3 A combined system as claimed in Claim 1 or Claim 2 wherein the extinguishing medium, viz. Halon 1301 is contained in the same cabinet as in Claim 2.
4. 4 A combined system as claimed in Claim 1, or Claim 2, or Claim 3 wherein the electronic circuits to perform the functions are housed in the same cabinet.
5. 5 A combined system as claimed. in any preceding claim wherein t he funetional and operation controls are housed in the cabinet and are operated from the same cabinet either as an intruder monitoring and alarm device o: in a fire detection, monitoring, alarm and extinguishing device.
6. 6 A combined system as claimed in any preceding claim wherein the visual and audible warning device are housed in the same L:aL0i net
7. 7 A combined system as claimed in any precading claim wherein a device for detecting the presence of an intruder is inc@rporated in the cabin@t.
8. 8 A combined system as claimed in any preceding claim wherein additional devices are connected to the system to extend.

   the field of detection of an Intrusion.
9. 9 A combined system as claimed in any preceding claim where in input point 5 are provided to receive signal @ from detectors, viz smoke photoelectronic or ionisation or fixed point heat or rate of rise detectors and are duly monitored and processed in accordance with the relevant British Standard operating procedures as specified in BS 3116 Part 4 BS 5839 Part 1 BS 5306 Section 5:1 BS 6266
10. 10 A combined system as claimed in any preceding claim wherein the extinguishing medium viz: Halon 1301 gas is released through an ejection nozzle which is incorporated as a component part of the cabinet.
11. 11 A combined system as described herein with reference to Figure 1 of the accompanying drawing.
12. 12 A combined system as illustrated in the picture marked Appendix A accompanying.