System Design of Home Bus System for a Single House

We first proposed in 1983 a plan for standardization of in-house information distribution networks called Home Bus System (HBS) to realize effective Home Automation (HA) in the world. In the HBS, digital data of base-band, and audio- visual information of broad-band are transmitted on a single coaxial cable by frequency-division multiplex. In order to realize economical HA, a standard protocol for HBS was established and standardized interface LSI was developed. This LSI is incorporated into various equipment made by different manufacturers and usefulness of the HBS was verified by system experiments undertaken in two model houses. In this paper, the system design and model house experiments based on a revised new HBS proposal are presented.