Area security system
First Claim
1. A personal monitor for attachment to the limb of a person and having a size appropriately related thereto, comprising a molded outer small housing for abutting attachment to the person, a transmitting unit within said housing including a programmable memory establishing a transmission circuitry and an antenna adapted to transmit radio frequency signals, said transmitting unit having circuit contacts exposed on diametrically opposite side walls of said housing, an elongated strap member having opposite free ends, said housing having a first and second tubular opening including said opposite side walls for receiving of said free ends of said strap member, said tubular openings including clip members movable between a release position for insertion of said free ends and an engaged position securing said strap in abutting engagement with said housing side walls and said contacts, said strap member having at least one conductor embedded therein and spaced in accordance with said contacts and interconnecting with said contacts and thereby completing said transmission circuitry, a locking unit within said tubular openings and said clip members to secure said free ends of said strap member in engagement with said contacts, and said transmitting unit including a unique transmitter operable in response to release of said locking means to transmit a unique alarm signal.
1 Assignment
0 Petitions
Accused Products
Abstract
A security system for monitoring movement of persons in a secured area including set openings which includes area and opening monitors, tag units and an alarm system. The tag unit has special end clamp members which securely clamp an attachment strap to a housing for attaching the unit to a person. Tampering with the connection creates an alarm state. The tag unit includes a dual transmitter continuously transmitting very low frequency (VLF) signal and transmitting a very high frequency (VHF or UHF) signal only if the tag unit is tampered with. The opening monitor includes VLF receivers responsive to a VLF signal and transmitting an alarm signal to an opening alarm system to prevent unauthorized exit. Authorized personnel have a deactivation unit for timed receiver disabling for moving the person through the opening. The UHF transmitter is activated upon unauthorized tampering with the attached tag. A bank response alarm includes a plurality of distributed VHF or UHF receivers which responds to the VHF or UHF signal of any tag unit. A deactivation control is provided to authorized personnel to permit attachment and removal of the tag unit. Other interlocks may be provided including visual and/or audible alarms, tag identification and, data recording.
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Citations
14 Claims
- 1. A personal monitor for attachment to the limb of a person and having a size appropriately related thereto, comprising a molded outer small housing for abutting attachment to the person, a transmitting unit within said housing including a programmable memory establishing a transmission circuitry and an antenna adapted to transmit radio frequency signals, said transmitting unit having circuit contacts exposed on diametrically opposite side walls of said housing, an elongated strap member having opposite free ends, said housing having a first and second tubular opening including said opposite side walls for receiving of said free ends of said strap member, said tubular openings including clip members movable between a release position for insertion of said free ends and an engaged position securing said strap in abutting engagement with said housing side walls and said contacts, said strap member having at least one conductor embedded therein and spaced in accordance with said contacts and interconnecting with said contacts and thereby completing said transmission circuitry, a locking unit within said tubular openings and said clip members to secure said free ends of said strap member in engagement with said contacts, and said transmitting unit including a unique transmitter operable in response to release of said locking means to transmit a unique alarm signal.
- 6. A monitoring security system for monitoring movement of a person with respect to a secured area, comprising a tag unit including a housing and a mounting strap unit for attaching of the housing to a limb of the person, a transmitter unit within said housing and including a first frequency transmitter transmitting a first signal having very low frequency and a second frequency transmitter transmitting a second signal having a very high frequency, said strap unit and housing having interlocking circuitry connections between the housing and the strap unit and operable to activate said first transmitter to transmit a first signal having a selected very low frequency signal encoded to a particular transmitter unit and interconnected to the second transmitter to activate the second transmitter in response to removal of the strap unit with respect to said housing, at least one first receiver responsive to said first signal and located adjacent selected exit/entrance opening to the restricted area, a plurality of second receivers responsive to said second signal and adapted to be distributed throughout the area to be secured, a low frequency controller coupled to said first receiver for establishing alarm conditions in the presence of the first transmitter in any tag unit within the secured area, a high frequency controller connected to said second receivers and each being responsive to receiving of said second signal within a select area adjacent said second receivers to establish an alarm condition, each of said low frequency and high frequency controllers including an alarm response circuitry, and each including a processor encoded to said first signal and to said second signal respectively and assigned within a secured area and operable to activate said alarm response circuitry, each of said low frequency and high frequency controllers including a by-pass unit operable to de-activate the alarm response circuitry of the respective controller for a predetermined by-pass interval and thereby to allow controlled removal of said housing and the exit and entry with respect to the secured area, and a deactivation unit for selectively deactivating said by-pass unit of said low frequency and high frequency controllers.
Specification