All domestic regional security system

摘要

[Problem] In the system according to local residents participation, nationwide in the all of the local residents watch the owner of the transmitter in a single transmitter, to provide a security system that support. And A transmitter for transmitting the weak radio wave that reaches about several 100m from 10m, and is constituted by a specific a device the position of the transmitter by a signal emitted from the plurality of receivers and the receiver and switch on the transmitter Multiple receivers to detect the signal and sends it to the device, each of which specifies the position when the is a domestic whole security system characterized in that to determine the position of the transmitter from the plurality of the receiver position. .BACKGROUND