A Home Automation System

A Home Automation (HA) System based on the Home Bus system has been developed. The system has a multi-layered hierachical structure and is composed of four subsystems (the Room Monitor Control Subsystem, the Telephone Subsystem, the Tele-control Subsystem and the In-house Video Control Subsystem). The HA system has both three inner-subsystem communication codes and one inter-subsystem communication code. The former are optimized for each subsystem and the latter enables the HA system to have efficiently combined applications. A compact (48.6 x 31 x 4 mm) communication control module which interfaces household appliances with the Home Bus has also been developed as one of the key parts for the system.