HOME SECURITY SURVEILLANCE SYSTEM

摘要

A home security surveillance system has a plurality of terminal detectors one of which functions as a master, and the other function as a slave to constitute an in-house alarm network. The in-house network is linked to a server on the side of a service provider to transmit an aid-requesting signal through a gateway unit upon detection of a hazardous condition at each of the terminals. Upon detecting a hazardous condition, each slave transmits a hazard signal through a first communication network to the master which responds to transmit the aid-requesting signal. The aid-requesting signal is transmitted through a second communication network which has a communication protocol different from the first communication network such that the server can receive the aid-requesting signal either from the master or the slave for fail-safe acknowledgement of the hazard condition detected in the customer's home.