Patent ID: 7213061
Filing Date: 2007-05-01
Classification: H04L

Abstract:
1. A control system, comprising: a plurality of control area networks; a control network portal coupled between the Internet and said plurality of control area networks, wherein the control network portal is operable to receive requests from the Internet and to service the received requests; a plurality of devices included in each of said control area networks, each of the plurality of devices included in a particular control area network being operable to perform a specified work task; and a plurality of master controllers, each master controller coupled to a different control area network, the master controller coupled to said particular control area network being operable to send commands to control each of said plurality of associated devices included in said particular control area network in performing their respective work tasks, the control network portal including an Internet appliance server coupled to the Internet and operable to pass command messages between the Internet and the master controllers of respective control area networks.