Patent ID: 7561019

Claim:
A home security system for performing state monitoring or operation of household equipment modules installed in a house, the home security system comprising: a portable device comprising: a first transmission portion to transmit M-series data using wireless signals in a predetermined interval to the household equipment modules; a first storage portion to store an identifier of the portable device and an identifier of a household equipment module; a first reception portion to receive household equipment identifiers responded to the M-series data respectively from the household equipment modules; a first comparison portion to compare the household equipment device identifier received by said first reception portion with the household equipment device identifier stored in the first storage portion; and a second transmission portion to transmit when the result of comparison by the first comparison portion indicates that one of the received household equipment device identifiers and the household equipment device identifier stored in the first storage portion coincide, the identifier of the portable device stored in said first storage portion and a command for the household equipment module of the received identifier by using wireless signals; and each of the household equipment modules installed in the house comprising: a second storage portion to store the household equipment device identifier and an identifier of the portable device; a second reception portion to receive and determine the M-series data transmitted M-series data has a relation with the household equipment device a third transmission portion to transmit the household equipment device identifier stored in said second storage portion, responsively to the received and determined M series data, a third reception portion to receive the portable device identifier and the command transmitted from the portable device, a second comparison portion to compare the portable device identifier received by the third reception portion with said portable device identifier stored in said second storage portion, and an execution portion which, when the result of comparison by said second comparison portion indicates that the two portable device identifiers coincide, executes the command received by said third reception portion.