A DEPLOY ABLE SHIELD SYSTEM

Field of the Invention

The present invention relates to security barriers and in particular to a deplorable shield system, and a system therefor.

Background

Sensitive sites such as government buildings, embassies, military sites, storage centres, airports, ports and prominent resident buildings are known targets for sabotage, trespass and the like.

Such sensitive sites are often protected by security guard, closed circuit camera security system and the like.

However, certain sites cannot be adequatel protected especially on account of aesthetic or public access requirements where barriers and the like would prove unsightly or inconvenient.

The present invention seeks to provide a deplovable shield system and deplovable shield module therefor which will overcome or substantially ameliorate, at least some of the deficiencies of the prior art, or to at least provide an alternative and/provide a second line of defence in some case.

It is to be understood that, if any prior art information is referred to herein, such reference does not constitute an admission that the information forms part of the common general knowledge i the art, in Australia or any other country.

Summary of the invention

According to one aspect, there is provided a deplovable shield system comprising a deplovable shield, wherein, in use, the shield Is adapted for movement in a substantially vertical direction between a sto ed configuration and a deployed configuration in which it restricts access to a restricted zone.

in one embodiment, the shield is configured to be substantially hidden from view in its stowed configuration.

in one embodiment, when in. the deployed configuration, the shield extends substantially vertically from the base .

In one embodiment, in use, the shield is adapted to deploy along a plane.

in one embodiment, the shield is substantially flexible.

In one embodiment, the shield comprises a flexible material.

In one embodiment, the flexible material comprises ballistics resistant material.

In one embodiment, the shield comprises netting.

In one embodiment, the shield is substantially rigid.

In one embodiment, the shield comprises a plurality of shield members.

in one embodiment, the shield members are plate like.

In one embodiment, the shield members are planar. in one embodiment, the shield members are curved,

in one embodiment;, the shield members are concertinaed.

In one embodiment, the shield members are interleaved.

ϊο one embodiment, the shield members are coupled to -each other in a telescopic manner.

In one embodiment, the shield members comprise apertures.

In one embodiment, the shield comprises a transparent portion.

In one embodiment, the depioyable shield system further comprises an actuator adapted to deploy the shield in use.

in one embodiment, the. actuator comprises a potential to kinetic energy converter.

in one embodiment, the potenti al to kinetic energy converter comprises at. least one of a spring and an elastic hand.

In one embodiment, the actuator is a powered actuator.

In one embodiment, the depioyable shield system further comprises a power supply opetably coupled to the actuator.

In one embodiment, the power supply provided pressurised gas.

In one embodiment, the pressurised gas comprises at least one of carbon dioxide and nitrogen, in one embodiment, the power supply provides pressurised hydraulic fluid,

in one embodiment, the. power supply is an electric power supply,

in one embodiment, the power supply comprises an electric motor.

In one embodiment, the depioyable shield system further comprises a mechanism adapted to maintain the shield in the deployed configuration.

In one embodiment, the mechanism comprises a mechanical interlock.

In one embodiment, the depioyable shield system further comprises a housing adapted to at least partially house the shield when the shield is in the stowed configuration.

In one embodiment, the housing is adapted for concealment. in a further aspect, the invention may he said to consist in a depioyable shield module for restricting access to a restricted zone, the shield module comprising

a base;

a shield extendable upwardly from the base from a stowed position to a deployed position.

In one embodiment, the shield module comprises a deployment mechanism configured for moving the shield from its stowed position to its deployed position.

In one embodiment, the shield is movable between its stowed position and deployed position.

in one embodiment, the deployment mechanism is configured for moving the shield from its deployed position, to its stowed position.

in one embodiment, the shield module comprises a controller for controlling movement of the shield b the deployment mechanism. in one embodiment, the contmller is configured to actuate movement of the shield by the deployment mechanism, in .response to a signal received from a sensor.

In one embodiment, the shield comprises a plurality of shield members.

la one embodiment, the shield defines a wall

In one embodiment, the shield members are coupled to each other in a telescoping manner.

In one embodiment, the shield module comprises a sensor.

In one embodiment, the sensor is one or more selected from

a sound sensing de vice

a pressure sensing device

a light sensing device

a strain gauge

In one embodiment, the deployment mechanism comprises an energy storage device.

In one embodiment, the energy storage device is a potential energy storage device.

In. one embodiment, the potential energy storage device comprises a spring.

in one embodiment, the deployment mechanism comprises a pressurised fluid storage reservoir.

In one embodiment, the deployment mechanism comprises a hydraulic mechanism.

in one embodiment, the hydraulic .mechanism comprises a hydraulic ram.

in one embodiment, the hydraulic mechanism comprises a hydraulic power pack.

In one embodiment, the hydraulic power pack comprises a hydraulic pump and hydraulic iluid storage tank.

I» one embodiment, the deployment mechanism comprises a rack and pinion device.

In one embodiment, the rack and pinion device comprises a prime mover.

In one embodiment, the prime mover comprises one or more selected from an electric motor, an internal combustion engine and a hydraulic motor.

in one. embodiment, the shield module is configured for connection to an electrical power source, in one embodiment, the shield module comprise a power source,

in one embodiment, the power source is a battery pack.

In one embodiment, the rack and pinion device comprises one or more ^' selected from

a belt drive

a chain drive

in one embodiment, the base comprises a housing for housing the shield.

In. one embodiment, the shield module compr es a lid.

In one embodiment, the lid is scalable against the housing.

In one embodiment, the housing is configured for being recei ved within a recess in the ground.

in one embodiment, the lid is configured and dimensioned for supporting the weight of a vehicle when the housing is received into a recess in the ground.

In one embodiment, the lid is secured or securable to the lop of the shield operationally. in one embodiment, the housing is waterproof..

In a further aspect, the Invention may he said to consist in a em loy ble shield system for restricting access to a restricted ¾ ne in an emergency, the deploy &Me shield system comprising a shield module comprising

a base, and

a shield extendable upwardly from the base from a stowed position to a deployed position;

a controller configured for

receiving an actuation instruction, and

actuating- movement of the shield from its stowed position to a deployed position.

In one embodiment, the actuation instruction is received from a sensor.

In one embodiment, the actuation instruction is received from a remote terminal.

In one embodiment, the step of actuating movement of the shield is by actuating movement of a prime mover.

In one embodiment, the step of actuating movement of the shield is by actuating release of stored potential energy in a potential energ storage device.

in one embodiment, the step of actuating movement of the shield is by actuating movement of a hydraulic niechani sm.

In one embodiment, the step of actuating movement of the shield is by actuating a. valve to allow stored pressurised fluid to move the shield.

In one embodiment, the shield module is a shield module as described above. Other aspects of the invention are also disclosed.

Other aspects of the invention may become apparent from the following description which is given, by way of example onl and with reference to the accompanying drawings.

As used herein the term and/or" means "and" or "or\ or both,

As used herein "(s) ^*s following a noun means the plural and/or singular forms of the noun.

The term, "comprising" as used in this specification and claims] means "consisting at least in part of. When interpreting statements in this specification [and claims] which include that term, the features- prefaced by that term in each statement, ail need to be present but other features can also be present, Related terms such as "comprise" and "comprised" are to be interpreted i n the same manner.

The entire disclosures of all applications, patents and publications, cited above and below, if any, are hereby incorporated by reference.

To those, skilled in the art to which the invention relates, many changes in construction and widely differing embodiments and applications of the invention will, suggest themselves without departing from the scope of the invention as defined in the appended claims. The disclosures and the descriptions herein are purely illustrative and are no intended to be in any sense limiting. Brief Description of the Drawings

Notwithstanding any other forms which may fall within the scope of the present invention, a preferred embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings in which :

Fig. I shows a computing device for controlling the deployabie shield system in accordance with an embodiment of the present invention;

Fig. 2 shows a defence system for deploying one or more deployabie shields in accordance with another embodiment of the present invention: and

Pigs 3 to 9 show differing views of a deployabie shield module in accordance with embodiments of the present invention.

Detailed Description of Preferred Embodiments

it should be noted in the following description that like or the same reference numerals in different embodiments denote the same or similar features.

In the ensuing description, there will be described a deployabie shield module adapted for use in various security applications. As will become apparent from the description below, the shield is adapted to remain stowed when not in use. but during emergency situations and the like, the deployabie shield module is adapted to deploy a shield to create a defensi ve wall as a line of defence against armed combatants, terrorists, rioters, projectiles and the like.

Generally, the deployabie shield module as described herein is suited for protecting sensitive sites including government buildings, embassies, military sites, storage centres, airoorts and ports and prominent resident buildings, in such application, permanent security barriers are not aesthetic. In this manner, and as will be described in further detail below, the deployabie shield module is adapted for being configured in a stowed configuration so as to be unobtrusive and even concealed in certain embodiments yet able to deploy a shield quickly during an emergency situation.

In certain embodiments, the deployabie shield module may be either partially or entirely subsumed beneath the ground surface, for example by being at least partially received and hidden within a recess, slot or trench. Where the deployabie shield module is entirely subsumed beneath the ground surface, the deployabie shield module preferably comprises a top plate which, is adapted to lie flush with the ground surface, such as a pavement or the like.

As will also be described in further detail below, the deployabie shield is primarily adapted for preventing the access of unauthorised persons to sensitive sites. However, the deployabie shield can have an application in shielding property or people against bullets, shrapnel and the like. Yet further, the deployabie shield module can be adapted to prevent or at least hinder large objects such as vehicles, light aircraft and the like. In certain embodiments,, the deployabie shield module may be adapted for use as a second line of defence such as intruders, assailants or the like to ^' breach an existing securit barrier. 8

Computing device 100

In certain embodiments as shown, the control, operation and control of the deplovable shield is preferably eoinputer-comxoikd, especially where control of the deplovable shield is required to be conducted in an automated manner. As such, referring to figure 1 , there is described a computing device 100 adapted for at least controlling the deployment of the deplovable shield module.

In particular, the steps of detecting an emergency situation, and the subsequent deployment of the deployable shield can be implemented as computer program code instructions executable by the computing device 100. The computer program code instructions are preferably divided into one or more computer program code instruction libraries, such as dynamic link libraries (DLL,), wherein each of the libraries performs a one or more steps of the method. Additionally, a subset of the one or more of the libraries .may perform graphical user intertace task relating to the steps of the method.

It should be noted that the computing device 100 may take on differing embodiments depending on the application. For example, in one embodiment, the deployable shield module can comprise a computing device 100 such as a low-power embedded computing device so as to control the deployment of the shield. n other embodiments, the computing devic 100 can be used to remotely activate the deployable shield, which remote activation can take the form of manual or automated activation. Specifically, in the embodiment is shown, it is envisaged that the computing device 100 is operabiy coupled to one or more deployable shield modules either directly or via a wired or wireless computer network or the like.

As such, in these embodiments, die computing device 100 may take the form of an mobile actuation device for use by an operator in deploying the deployable shield, a sensor device adapted to automate the detection of an emergency situation or even a computing device 100 within a control centre, or any combination of these. The device 100 comprises semiconductor memory 1.10 comprising volatile memory such as random access memory (RAM) or read only memory (ROM). The memory 100 may comprise either RAM or ROM or a combination of RAM and ROM,

The device 100 comprises a computer program code storage medium reader 130 for reading the computer program: code instructions from computer program code storage media 120. The storage media 120 may be optical media such as CD-ROM disks, magnetic media such as floppy disks and tape cassettes or flash media such as USB memory sticks.

The device further comprises I O interface 1 0 for communicating with one or more peripheral devices. The I/O interface 140 may offer both serial and parallel interface connectivity. For example, the I/O interface 140 may comprise a Small Computer System interface (SCSI), Universal Serial Bus (USB) or similar I/O interface for interfacing with the storage medium reader 130. The I/O interface 140 may also communicate with one or more human input devices (HID) 160 such as keyboards, pointing devices, joysticks and the like. The I/O interface 140 may also comprise a computer to computer interface, such as a .Recommended Standard 232 (R.S-232) interface, for interfacing the device .100 with one or more personal computer (PC) devices 1.90. The I/O interface .140 may also comprise an audio Interface for communicate audio signals to one or more audio devices 1050, such as a speaker or a buzzer.

The device 100 also comprises a network interface .170 for communicating with one or more computer networks 180. The network 180 may be a wired network, such as a wired Ethernet' ^M network or a wireless network, such as a Biuetooth ^iM network or IEEE 802.11 network. The network 1 0 may be a local area network (LAN), such as a home or office computer network, or a wide area network (WAN), such as the Internet or private WAN.

The device 100 comprises an arithmetic logic unit or processor 1000 for performing the computer program code instructions. The processor 1000 may he a reduced instruction set computer (RISC) or complex instruction, set computer (CISC) processor or the like. The device 1.00 further comprises a storage device 1030, such as a magnetic disk hard drive or a solid state disk drive.

Computer program code instructions can be loaded into- the storage device 1030 from the storage media 120 using the storage medium reader 130 or from the network 180 using network interface 170. During the bootstrap phase, an operating system and one or more software applications are loaded from the storage device 1030 into the memory 1 10. During the fetch-decode-execute cycle, the processor 1000 fetches computer program code instructions from memory 1 10, decodes the instructions into machine code, executes the instructions nd stores one or more intermediate results in memory 00.

In this manner, the instructions stored in the memory 1 10, when retrieved and executed by the processor 1000, can configure the c nfuting device 100 as a special-purpose machine that may perform the functions described herein.

The device 100 also comprises a video interface 1010 for conveying video signals to a display device 1020, such as a liquid crystal display (LCD), cathode-ray tube (CRT), touch sensitive display screen, or similar display device.

The device 100 also comprises a communication bus subsystem 150 for interconnecting the various devices described above. The- bus subsystem 150 may offer parallel connectivity such as Industry Standard Architecture (ISA), conventional Peripheral Component. Interconnect ( CI) and the like or serial connectivity such as PCI Express (PCle), Serial Advanced Technolog Attachment (Serial ATA) and the like.

Furthermore, the I/O interface 140 is operably coupled to the deployable shield actuator 1 15 adapted for deploying the shield. For example, the deployable shield actuator 1.50 preferably comprises a high current switch for the -purposes of controlling hydraulic rams, electric motors and the like when deploying the deployable shield. The computing device 100 can be operably coupled to the deployable shield actuator 115 in differing ways including voltage threshold, current loop, digital control and the like. It should be noted that the deployable shield actuator 150 cam be located remotely from the computing device 100, especially where the computing device 100 i adapted to control deployabie shield modules in other locations, or where the computing device 100 is adapted to control multiple deplovable shield systems.

Defence system 200

Turning now to figure 2, there is shown an exemplary defence system 200. It should be noted that the topology depicted in figure 2 is exemplary only and departures and variations thereto may be made within the purposive scope of the embodiments described herein.

While the deplovable shield system can comprise a number of self-contained and discrete deplovable shield modules, in certain embodiments, one or more deplovabl shields can be controlled across a data network in the manner shown in figure 2 .

Specifically, the defence system 200 comprises one or more deployabie shield modules 300. Each deplovable shield module 300 is adapted to deploy a deployabie shield when actuated.

Now, specifically with .reference to figure 2, there will now be described the deployment of the shields of the deplovable shield module 300 in automated and manual manners.

Specifically, in one embodiment, the defence system 200 comprises a sensor 230 for sensin an emergency situation, it should be noted that the sensor 230 may be located away from the deployabie shield modul 300, proxmially located or provided integrally therein. Furthermore, the sensor 250 can be directly operabJy coupled to the deplo abie shield module 300 or alternatively coupled to the deployabie shield module 300 via computer network 180.

In use, the sensor 200 is adapted to sense an emergency situation so as to cause the deployment of the deployabie shield of the deployabie shield module 300. It should be noted that, the sensor 230 may take on differing embodiments depending on the application.

It is envisaged that the sensor will preferably send signal to the controller, which will compare the sensor signal to a predetermined threshold level, to determine whether the shield should be deployed, if the threshold level is met or surpassed, for example if a noise above a certain decibel level is sensed, or a flash of light above a certain intensity or in a certain frequency range is sensed, the controller will actuate the deployment of the shield to its deployed position.

Specifically, in one embodiment, the sensor 230 may be a trip sensor such as a line of sight a laser sensor, In this manner, should an unauthorised person trip the trip sensor, the deployabie shield module 300 may be deployed. For example, around sensitive government buildings or the like, a plurality of perimeter trip sensors 230 may be deployed. The trip sensors 230 may be adapted to deploy the shield of the deplovable shield module- 300 should a trip beam be interrupted between the hours of 8 PM and 6 AM in the morning.

In one embodiment, a sensor device 230 could include a sound sensor adapted to actuate movement of the shield to its deployed position if a sound as detected above a certain decibel level.

In another embodiment, a sensor device 230 could include pressure sensor adapted to actuate movement of the shield to its deployed position if air pressure above a threshold limit is detected. in yet another embodiment,, a sensor device 230 can include a switch act atable by a person, which is adapted to actuate movement of the shield to its deployed position if the switch is triggered or actuated by a person. In other embodiments, other sensors 230 can be employed, including proximity sensors such as pressure sensors, laser and. acoustic proximity sensors and the like. Furthermore, the sensor 230 can be an audio sensor adapted to actuate the deployment of the shield, to its deployed position when sensing differing audio cues, such as sound of explosions, shouting, gunfire and theike.

in a yet further embodiment, the sensor 230 may be more sophisticated in comprising image recogiiition technique wherein video feed from one or more CCTV caiiieras is processed through an image processor to detect unauthorised, suspicious acti vity, or the face detection of wanted persons so a to cause the deployment of the shield of the depioyable shield module 300.

It should be noted that the sensor 230 is generally employed where automated deployment of the shield, of the depioyable shield module 230 as required. However in other embodiments, the deployment of the shield of the depioyable shield module 300 can be manually activated so as to be deployed by a human or other animal. Specifically, in one embodiment the defence system 200 comprises an actuator 2.10 adapted for actuation by an operator to deplo the depioyable shield module. Specifically, attendant security guards make be provided with wireless radio transmitters devices so as to be able to deploy the shields at their discretion.

in other embodiments, the defence system. 200 comprises a centralised control centre 210 wherefrom. various depioyable shield modules 300 are controllable from a centralised environment.

Depioyable shield module 300

Referring now to figure 3, 4, 5, 6 and 7, there are shown differing views of the depioyable shield module 300 in accordance with various, embodiments.

Specifically, figure 3 and figure 4 show a cutaway lateral elevation view of the depioyable shield module 300 wherein figure 3 shows the depioyable shield module 300 in. a stowed configuration and figure 4 shows the depioyable shield module 300 in a deployed configuration.

Specifically now referring to figure 3, wherein the depioyable shield module 300 is shown in the stowed configuration it is apparent that the depioyable shield module 300 is generall .fastened by way of fastener 310 to existing structure 305 or the like for securement and rigidit purposes. As is apparent, the depioyable shield module 300 is shown fastened to an existing low wall structure 305. As alluded to above, in one embodiment the design requirement for the depioyable shield module 300 is to ^' be aesthetically pleasing and not visually obtrusive so as to allow the deployment of the depioyable shield module 300 around existing government buildings and the like, in this regard, it is envisaged that the shield module 300 can be secured or fastened to either side of the existing low wall structure 305. in the embodiments shown in figure 3. while the deployable shield module 300 is visually apparent, in certain embodiments the deployable shield module 300 is adapted to be camouflaged or concealed so as to he inconspicuous. For example, in other embodiments, the deployable shield module 300 may be concealed beneath a flowerbed or within a flowerpot, within an existing wall structure 305 or the like. Furthermore, in the embodiment shown in figure 3, the deployable shield module 300 is shown above ground but it should be appreciated that the deployable shield module 300 can also be located completely or at least partially beneath ground level.

it should also be noted mat in certain embodiments, the deployable shield module 300 can be adapted for portability so as to advantageously allow for rapid deploymen in emergency situations, in this manner, the deployable shield modules 300 can be transported in the back of a police vehicle or the like for removal and deployment at strategic locations.

However, referring to the specific embodiment provided in figure 3, the deployable shield module 300 comprises a housing 325 within which the componentry described in further detail below is housed. Generally, the housing 325 is preferably weatherproof, watertight and the like. Furthermore, the housing 325 is preferabl substantially rigid and manufactured from steel or a suitably protective material, such as carbon fibre, evlar or the like.

The housing 325 comprises a lid 315 that allows the deployable shield module 300 to deploy. The lid 315 is preferably fastened onto the housing in a snap-fit type configuration, or in another embodiment it. is envisaged that the lid 315 can be pivotably attached to the housing 325, for example with hinges (not shown).

The shield module 300 comprises a deployable shield 335 housed within the housing 325, The deployable shield 335 is movable between a stowed position, shown in figure 3, and a deployed position, shown in figure 4, and preferably defines a continuous barrier that extends laterall and vertically, which restricts access to a restricted zone behind the shield. As is apparent, when in the deployed configuration, the shield 335 extends upwardly so as to present a security barrier that is configured for stopping or at least dispersing the energy of ingress of potential security risks, such as intruders, unauthorised vehicles, gunfire, thrown items such as stones and Molotov cocktails, and the like. It is also envisaged that the deployable shield module 300 will be generally configured to be heat resistant, in order to resist explosions and/or fires on at least one side of the shield 335.it is further envisaged that in alternative embodiments (not shown,), the shield 335 could comprise additional mechanisms and/or arrangements for preventing movement of personnel over the top of the shield. Such additional features could include electric and/or barbed wire barriers that configured to deploy transversely from the shield 335, as the shield 335 extends upwardly to its deployed position. Such transverse deployment of the personnel barriers could be carried out in a pivoting or sliding manner. It is generally understood that when the shield 335 is in its deployed position, the shield module 300 and defence system. 200 may be said to be in their deployed configuration. Similarly, when the shield 335 is in its stowed position, the shield module 300 and defence system 200 may be said to be in their stowed configuration.

However, should be noted that while in preferred embodiments described herein wherein the shield 335 is adapted to -extend vertically upwardly, in other embodiments shield 335 can be deployed m other directions also. For example, the shield 335 may extend an inclined angle especially an angle inclined towards the expected direction of an unauthorised person 345 so as to make it more difficult for the unauthorised person 345 to attempt to climb over the shield 335.

in other embodiments also, the shield 335 may extend laterally such as where the deployable shield module 300 is deployed atop a wall or at the upper edge of a building structure or the like, in this manner, the shield 335 extends laterally so as to prevent unauthorised person. 345 from climbing over the wall, building or the like.

Also, while in the embodiment shown in the figures, the deployable shield module 300 includes a single shield 335 that defines a single shield wall, in other embodiments, the deployable shield module 300 can include .more than one deployable shield 335 that defines more .than one shield wall when in its deployed configuration.

Specifically, in one embodiment, the deployable shield .module 300 can comprise two telescoping shields 335 wherein each of the shields 335 is inclined outwardly at an angle to the vertical so as to increase the difficulty of unauthorised person 345 attempting to climb over each of the shields 335 from either direction. Similarly, where the deployable shield module 300 is deployed on top of a wail, each of the two shield 335 can extend outwardly and laterally from the- wall so as to prevent unauthorised person 345 from climbing over the wall from either direction of the wall. However, in the preferred embodiments shown, the deployable shield module 300 comprises a single shield 335. In the embodiments shown in the accompanying figures, each shield 335 comprises a plurality of interleaved, telescoping shield members. Each shield member is adapted to slide with respect to adjacent shield members when transitioning between the deployed configuration and the stowed configuration.

However, it should be noted that in other embodiments differing types of deployable shield mechanisms may be employed. For example, in one embodiment, the shield 335 can take on a concertina arrangement such as by comprisin a series of breadthwise orientated fold lines so as to allow the shield 335 to fold in a concertina manner when in the stowed configuration, in other embodiments, the shield 335 may be roiled about a spool, much like an automatic garage door, in other embodiments, other mechanical arrangements may be employed for allowing the shield 335 to extend and retract.

It should be noted that the shield 335 need not necessarily extend and retract, along a plane. For example, in one embodiment the shield may be fixed but rotatabie about a point. For example, the shield may be laid across a. pavement surface or the like when in the stowed configuration wherein. during deployment, the shield simpl lifts upwards by being rotated about a pivot point of the deployabie shield module 300 so as to raise upwardly in this maimer.

Referring now to the properties of the shield 335, in a preferred embodiment, and making specific reference to figure 5, there is shown the shield 335 taking the form of a mesh such as a mesh formed from metal sheeting, intertwined wire or the like. However, in other embodiments, differing materials and configurations may be employed as the case may be. Generally, in the selection, of the material for the shield 335, the material may be suited for .the purpose of the shield 335 which may include, purposes including preventing climbing thereover, physical resilience to lateral forces, resistance to ballistics and the like.

Specifically, in the embodiment presented, metal mesh is employed so as to provide lightweight yet strong construction.

In other embodiments, it may also be advantageous to provide a substantially see-through shield so as to, for example allow security personnel to view authorised persons on the other side of the shield .335. In this regard, the above-mentioned metal mesh may be used which is substantially transparen Alternatively, a transparent or translucent material such as polycarbonate or (he like may equally be employed.

in another embodiment, it may be advantageous to provide an impact resistant barrier. For such an application, it is envisaged that an ultraviolet radiation resistant plastic tank can be provided, that is tillable with water, and which can absorb energy from impacts from large objects such as vehicles. The shield 335 could also comprise a precast concrete wall, or could be composed of steel or aluminium sheeting.

in one embodiment the deployabie shield module 300 is adapted to substantially prevent unauthorised persons from climbing over the shield 335, in this manner, the shield 335 can be provided with a slipper surface, such, as by being coated with Teflon, lubricant or the like so as to reduce friction. Furthermore, a surface of the shield 335 can be adapted to be as smooth as possible so as to be devoid of leverage points or the like which an unauthorised person 345 may attempt to use in climbing over the shield 335. For example, where an interleaved or telescoping shield 335 is employed comprising a plurality of interleaved shield members, the uppermost, interleaved shield members are located outwards towards an outer face of the shield 335 to thereby overhang the undermost interleaved shield members, so as to remove ledges that can be used for the purpose of climbing over the shield. Incidentally, whereas in the embodiment shown in figures 3 and 4 there is shown, the unauthorised person 345 to the righ of the deployabie shield module 300 such is for illustration purposes only, whereas the configuration of the deployabie shield module 300 as provided in the drawings is adapted to deter unauthorised person 345 from the left hand side of the deployabie shield module 300.

in certain embodiments, so as to prevent, unauthorised persons 345 from climbing over the shield 335, the deployabie shield module 300 can comprise lateral deterrents such laterally extending protrusions such as spikes, electrification and the like. h one embodiment the deployable shield module 300 comprises air bags 320 which, are adapted to inflate so as to extend outwardly so as to either create a barrier to an unauthorised person 345 attempting to climb over the shield 345 or push against the unauthorised, person 345, in the latter manner, the deployable shield .module 300 can comprise one or more sensors or the like configured for determining whether or not an unauthorised person 345 is attempting to climb over the shield 335, and actuate the deployment of the airbags 320 in accordance with a signal received from, the sensor.

in other embodiments, as alluded to above, the. shield 335 ma advantageously be adapted for ballistics proofing, so as to prevent or deflect ballistics including bullets, shrapnel and the like. In this manner, the shield 335 may be sufficiently thickened to withstand such. Additionally, the shield 335 may be provided with impact energy absorption material and reinforced with, materials including polycarbonate, Kevlar and the like.

Also, as alluded to above, whereas in one embodiment of the deployable shield module 300 is adapted for preventing unauthorised persons 345 from climbing over the shield 335, in alternative of additional, embodiments the deployable shield module 300 may be adapted to withstand lateral forces so as to be able to withstand a group of rioters, or even driven vehicles, light aircraft and the like. In this embodiment, the deployable shield module 300 can be provided with a steadfast base including a base having a wide footprint so as to withstand lateral forces, in addition, the base can be weighted, or secured to and immovable or sturdy object, such as a wail or foundation.. Additionally, in another embodiment (not shown), .during the deployment of the shield 335, obliquely orientated supports (not shown) can be provided, which supports are adapted to laterally support the shield 335. Such supports are envisaged as being rigid braces, "guy ropes" and the like. These obliquely orientated supports can be adapted to deploy as the shield 335 rises into the deployed position.

Now, there will be discussed various mechanisms for the mechanical deployment of the shield 335. In a first embodiment, the deployable shield module 300 comprises a potential to kinetic energy converter so as to raise the shield 335 using stored potential energy. In addition, the deployable shield module 300 can include a mechanism for storing potential energy. For example, the deployable shield module 300 can be provided with a spring mechanism (not shown). The spring mechanism biases the shield to move to its deployed position, and is held from moving to its deployed position by a holding mechanism. When the holding mechanism, is released, the spring mechanism causes the shield 335 to move into its deployed position, at the relevant time. Alternatively, other mechanism such as stretched resilient member, such as an elastic band with appropriate pulleys and the like may be adapted to raise the shield 335 into the deployed position.

Advantages of using such potential energy include the rapid deployment of the shield 335, especially in situations where rapid deployment is required. Once is the deployed position, the shield 335 may be configured again into the stowed configuration by tensioning the spring, elastic hand or the like- again. Such may be achieved by placing pressure on top of the lid 315 of the deployable shield module 300, or by using a mechanical winch or the like. In another embodiment, stored high-pressure fluid such as compressed air could cause the movement of the shield 335 to its deployed position, it is envisaged that suc stored high-pressure fluid would be stored in a pressure vessel associated with the shield module 300. The shield module could further comprise a compressor and valve arrangement for releasing the fluid pressure holding the- shield 335 in its deployed position, to thereby allow the shield 335 to he moved to its stowed position again, it should be noted that once in the deployed configuration, the deployable shield module 300 can comprise a locking mechanism (not shown) t prevent the collapsing of the shield 335, for example by unauthorised personnel 345 applying pressure to the top of the deployable shield module 300. In one embodiment, the lateral edges of the shield 335are provided with a toothed track and a ratchet arrangement configured for preventing the collapsing of the shield 235. Once deployed in its deployed configuration, the deployable shield module 300 can be adapted such that the shield 335 can only be collapsed again by an authorised person having a key or specialised tool, configured for disengaging the toothed track, or releasing the ratchet arrangement.

in other embodiments, the deployment of the shield 335 can be deployed through using a powered actuator. Specifically, referring again to figure 3, the deployable shield module 300 comprises a hydraulic ram actuator 340. Specifically, re-iemng to figure 4, there are- shown hydraulic rams 340 in the extended position, which hydraulic rams are mechanically coupled to the shield 335 so as to deploy the shield 335, The advantages provided through the use of the hydraulic rams included being- able to deploy even while pressure is being applied to the top of the deployable shield module 300 such as where rioters or the like are climbing over the deployable shield module 300 while the deployable shield module 300 is deployed. Furthermore, hydraulic rams are advantageously suited for the lifting of especially heavy shield members.

It should be noted that while in the embodiments, the hydraulic rams 340 are shown orientated vertically, in other embodiments the hydraulic rams can act horizontally on appropriate levers or the like to raise the shield 335. For example, a short throw hydraulic rara can act on a scissor type lever mechanism in raising the shield 335.

In certain embodiments, especially where the rapid deployment of the shield 335 is required, the hydraulic rams 340 can be pressurised using pressurised gas from a pressurised gas container, such as a carbon dioxide or nitrogen gas container. Alternatively, conventional liquid pressurisation can be employed.

it should be .noted that in other embodiments other powered actuators may be employed as the case may be to raise the shield 335. These other embodiments include the use of electric motors, electromagnets, or any other actuator that is suitably engineered therefor. in the embodiments where a powered actuator is. employed, the deployable shield module 300 can comprise an integral power supply such as the above-mentioned pressurised gas container, battery or the like. Alternatively, the deployable shield module 300 may be adapted to draw power from a power supply such as an adjacent electric power supply.

The deployable shield module 300 further comprises shrouds 330 about the actuators 340. for preventing tampering with the actuators 340. Specifically, referring to figure 5, there is shown the. shrouds 330 comprising telescopic members adapted to extend with the extension of the actuator 340. Referring to figure 6, there is shown a top view of the deployable shield module 300, wherein it is apparent that, the actuator 340 resides, within the shrouds 330. it is envisaged that the shrouds. 330 can be integrally .formed with the shield members as a wall formation.

Referring to figure 7, there is shown the -support structure 330 comprising cross braces 705 adapted to further brace the deployable shield module 300. It is envisaged that such cross bracing will act to prevent actuators 340 being palled apart or pushed together.

In. a preferred embodiment, the deployable shield module 300 is modular and comprises connecting formations for securely connecting to an adjacent similar deployable shield module 300. In this manner, a number of deployable shield module 300 may be co-located to form a barrier line, perimeter or the like, in being modular, each deployable shield module 300 can comprise laterally located complementary mechanical interlock members (not shown) adapted to mate with and secure adjacent complementary mechanical interlock members of an adjacent deployable shield module 300. When provided in this manner, the plurality of deployable shield module 300 can be adapted to share a power suppl or the like wherein a centralised energy source or power system, such as a pressure vessel referred to above, is provided to pressurise actuators 340 of a plurality of deployable shield modules 300.

It should be noted that in certain embodiments, the deployable shield module 300 can comprise lighting so as to illuminate a region about the deployable shield module 300. Such illumination may assist the. vision of security personnel or other response mechanism or assist to blind intruders or a mob of people.

In a yet further embodiment, the deployable shield module 300 may comprise high-voltage electrification not dissimilar to that employed by an electric fence so as to further deter intruders making contact with the deployable shield module 300. In this regard, it is envisaged that the shield module 300 will be adapted for connection to a power source for electrification of the -shield 335, and each shield module 300 can be provided with a transformer arrangement for stepping up the voltage of the power source.

Referring to figure 8, there is shown exemplary dimensions for the deployable shield module 300. Specifically, as is apparent fr m the figure, in the stowed configuration, the deployable shield module 300 is substantially 1000 mm high, 400 mm. deep and 1.500 millimetres wide in its stowed position. The housing is preferably composed of 1.5 mm thick steel plate. Furthermore, referring to figure 9, there is shown an exemplar measurements for the depioyable shield module 300 when the depioyable shield module 300 is in the deployed configuration. As is apparent the depioyable shield module 300 is preferably configured and dimensioned to attain a height of 2900mm in. height when deployed.

In one embodiment, the depioyable shield module 300 Is adapted to deploy in less than live seconds, and preferably within one second. When it comes to retracting, timin is not a essential as during deployment and therefore the depioyable shield module 300 can be adapted to retract to the stowed configuration in less than 5 minutes, and preferably within 60 seconds.

It should be noted that the. above measurements are exemplary only and variations thereto may be made depending on the application.

it is further envisaged that, where the shield module 300 is disposed within a trench or hole in the ground, the shield module 300 can include a drainage system for draining water from, the housing. Further, it is envisaged that the shield module 300 be provided with seals (not shown) configured for sealing around the edges of the lid 31.5 and against the housing 325, to prevent water ingress into the housing.

Interpretation

Wireless:

The invention may be embodied using devices conforming to other network -standards and for other applications, including, for -example ther WLA standards and other wireless standards. Applications that can be accommodated include IEEE 802.11 wireless LANs and links, and wireless Ethernet

In the context of this document, the term "wireless" and its derivatives may be used to describe circuits, devices, systems, methods, techniques, communications channels, etc., that may communicate data through the use of modulated electromagnetic radiation through a non-solid medium. The term, does not imply that the associated devices do not contain any wires, although in some embodiments they might not in the context, of this document, the term "wired" and its derivatives may be used to describe circuits, devices, systems, methods, techniques, communications channels, etc.. that may communicate data through the use of modulated electromagnetic radiation through a solid medium. The term does not imply that the associated, devices- are coupled by electrically conducti e wires.

Processes:

Unless specifically stated otherwise, as apparent from the following discussions, it is appreciated that throughout the specification discussions utilizing terms such as "processing", "computing", "calculating", "determining", "analysing" or the like, refer to the action and/or processes of a computer or computing system, or similar electronic computing device, that manipulate and/or transform data represented as physical, such as electronic, quantities into other data similarly represented as physical quantities.

Processor:

In a similar manner., the term "processor" may refer to any device or portion of a device that processes electronic data, e.g., from registers and or memory to transform that electronic data into other electronic data that, e.g., may be stored in registers and/or memory. A "computer" or a "computing device" or a "computing machine" or a "computing platform" may include one or more processors, The methodologies described herein are, in one embodiment, pertbrraable by one or more processors that accept computer-readable (also called machine-readable) code containing a set of instructions that when executed by one or more of the processors carry out at least one of the methods described herein. Any processor capable of executing a set of instructions (sequential or otherwise) that specify actions to be taken are included. Thus, one example is a typical processing system that includes one or more processors. The processing system further may include a memory subsystem including main RAM and/or a static RAM, and/or ROM. Computer-Readable Medium:

Furthermore, a computer-readable carrier medium may form, or be included in a computer program product. A computer program product can be stored on a computer usable carrier medium, the computer program product comprising a computer readable program means for causing a processor to perform a method as described herein.

Networked or Multiple Processors:

In alternative embodiments, the one or more processors operate as a standalone device or ma be connected, e.g., networked to other processors), in a networked deployment, the one or more processors may operate in the capacity of a server or a client machine in server-client network environment, or as a peer machine is a peer-to-peer or distributed network environment. The one or more processors may form a web appliance, a network router, switch or bridge, or any machine capable of executi ng a set of instructions (sequential or otherwise) that specify actions to be taken by that machine.

Note that while some diagramfs) only show(s) a single processor and a single memory that carries the computer-readable code, those in the art will understand that many of the components described above are included, but not explicitly shown or described in order not to obscure the inventive aspect. For example, while only a single machine is illustrated, the term "machine" shall also be taken to include any collection of machines that, individually or jointly execute a set (or multiple sets) of instructions to perform any one or more of the methodologies discussed herein.

Additional Embodiments:

Thus, one embodiment of each of the methods described herein is in the form of a computer-readable carrier medium carrying a set of instructions, e.g., a computer program that, are for execution on one or more processors. Thus, as will be appreciated by those skilled in the art, embodiments of the present invention may be embodied as a method, an apparatus such as a special purpose apparatus, an apparatus .such as a data processing system, or a computer-readable carrier medium. The computer- readable carrier medium carries computer readable code including a set of instructions that when executed on one or more processors cause a processor or processors to implement a method. Accordingly, aspects of the present invention may take the form of a method, an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of carrier medium (e.g., a computer program product on a computer-readable .storage medium) carrying computer-readable program code embodied in the medium..

Carrier Medium:

The software may further be transmitted or received over a network, via a network interface device. While the carrier medium is shown in an example embodiment to be a single medium, the term "carrier medium" should be taken to include a single medium or multiple media (e.g., a centralized or distributed database, and or associated caches and servers) that store the one or more sets of instructions. The term "carrier medium" shall also be taken to include any medium that is capable of storing, encoding or carrying a set of instructions for execution by one or more of the processors and that cause the one or more processors to perform any one or more of the methodologies of the present invention, A carrier medium may take many forms, including but not limited to, non-volatile media, volatile media, and transmission media. implementation;

ft will be understood thai the steps of methods discussed are performed in one embodiment by an appropriate processor (or processors) of a processing (i.e., computer) system executing instructions (computer-readable code) stored in storage. It will also be understood that the invention is not limited to any particular implementation or programming technique and that the invention may be implemented using any appropriate techniques for impleme ting the functionality described herein. The invention is not limited to any particular programming language or operating system.

Means For Carrying out a Method or Function

Furthermore, some of the embodiments are described herein as a method or combination of elements of a method that can be implemented by a processor of a processor device, computer system, or by other means of carrying out the function. Thus, a processor with the necessary instructions for carrying out such a method or element, of a method forms a means for carrying out the method or element of a method. Furthermore, an element described herein of an apparatus embodiment is an example of a means for carrying out the functio performed by the element for the purpose of caixyi.n.g out the invention.

Connected

Similarly, it is to be noticed that the term connected, when used in the claims, should not be interpreted as- being limitative to direct connections only. Thus, the scope of the expression a device A connected to a device B should not be limited to devices or systems wherein an output of device A is directly connected to an input of device B. It means that there exists a path between an output of A and an input of B which may be- a path including other devices or means. "Connected" may mean that two or more elements are either in direct physical ^' or electrical contact, or that two or more elements are not in direct contact with each other but yet still co-operate or interact with each other.

Embodiments:

Reference throughout, this specification to "one embodiment." or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of the phrases "in one embodiment" or "in an embodimetif in various places throughout this specification are not necessarily all referring to the same embodiment, but may. Furthermore, the particular features, structures or characteristics may he combined in any suitable manner, as would be apparent to one of ordinary skill in the art from this disclosure, in one or more embodiments.

Similarly it should be appreciated that in the above description of example embodinaents of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof tor the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus,, the claims following the Detailed Description of Specific Embodiments are hereby expressly incorporated into this Detailed Description of Specific Embodiments, with, each claim standing on its own as a separate embodiment of this invention.

Furthermore, while some embodiments described herein include some but not other features included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention, and form different embodiments, as would be understood by those in the art, For example, in the following claims, any of the claimed embodiments can be used in any combination.

Different Instances of Objects

As used herein, unless otherwise specified the use of the ordinal adjectives ""first", "second", "third", etc., to describe a common object, merely indicate that different instances of like objects are being referred to, and are not intended to imply that the objects so described mast be in. a given, sequence, either temporally, spatially, in ranking, or in any other manner.

Specific Details

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In other instances, well-known methods, structures and techniques have not been shown in detail in. order not to obscure an understanding of this description.

Terminology

In describing the preferred embodiment of the invention illustrated in the drawings, specific terminology will be resorted to for the sake of clarity. However, the invention is not intended to be limited to the specific terms so selected, and it is to be understood that each specific term includes all. technical equivalents which operate in a similar manner to accomplish a similar technical purpose. Terms such as "forward", "rearward", "radially", "peripherally", "upwardly", "downwardly", and the like are used as words of convenience to provide reference points and are not to be construed as limiting terms. Comprising and Including

In the claims which follow and in th preceding description of the invention, except where the context requires otherwise due to express language or necessary implication, the word "comprise" or variations such as "comprises" or "comprising" are used in. an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention.

Any one of the terms: including or which includes or that includes as used herein is also an open term that also means including at least the elements/features that follow the term, but not excluding others, Thus, including is synonymous with and means comprising.

Scope of Invention

Thus, while there has been, described what are believed to be the preferred embodiments of the invention, those skilled in the art will recognize that other and further modifications may be made thereto without departing from the spirit of the invention, and it is intended to claim all such changes and modifications as fail within the scope of the invention. For example, any formulas given above are merely representative of procedure that may be used. Functionality may be added or deleted from the block diagrams and operations may be interchanged among functional blocks. Steps may be added or deleted to methods described within the scope of the present invention.

Although the invention has been described with reference to specific examples, it. will be appreciated by those skilled in the art that the invention may be embodied in many other forms.

Industrial Applicability

It is apparent from the above, that the arrangements described -are applicable to the security industries.