Patent ID: 8483262
Filing Date: 2013-07-09
Classification: G08B

Abstract:
1. A system for monitoring and distinguishing events along a perimeter, said system comprising: at least one piezoelectric cable, said at least one piezoelectric cable defining a perimeter bounding an area, said at least one piezoelectric cable being provided for generating electrical signals in response to mechanical stress; a processing system in electrical communication with said at least one piezoelectric cable, and processing system for sequencing operation of said system, said processing system for detecting an event in response to electrical signals generated by said at least one piezoelectric cable; a power supple for providing power to said system; a conducting wire in electrical communication with said processing system, said conducting wire being disposed substantially about the perimeter, said conducting wire being provided for broadcasting and electromagnetic signal; a processing device selected from the group consisting of a computer, logic components, a microcontroller, and a microprocessor; said processing device for sequencing the operation of said processing system; a signal generator in electrical communication with said processing device, said signal generator for generating a signal using input from said processing device; a transmitter in electrical communication with said signal generator, said transmitter for broadcasting an electromagnetic signal through said conducting wire; and a gateway circuit in electrical communication with said transmitter, said gateway circuit in electrical communication with said processing device and with said conducting wire, said gateway circuit for controlling access to said conducting wire such that transmitted electromagnetic signals are not distorted by interference from other transmitted electromagnetic signals.