| 摘要 |
A home automation system comprises a number of sub-systems for controlling various aspects of a house, such as a security sub-system (50), and HVAC sub-system (70), a lighting control sub-system, and an entertainment sub-system. The network comprises a host computer (20) connected through a host interface (24) to a plurality of nodes (25-30). The network is in a free form topology and employ asynchronous communication. The host computer (20) polls each node on the network to determine system configuration and to perform a diagnostic check on the system. The messages that are transmitted between the nodes are comprised of a source address, a destination address that uniquely indentifies the location of each piece of hardware on the system, a message type field, and a data length segment. Each hardware device has a mirror image software object in the host computer to which messages are directed. |
