A controller is provided for an environmental management system. The system includes a transceiver for transmitting signals to and receiving signals from at least one environmental sensor or actuator over a network and a processor for interpreting received signals and generating signals to be transmitted...http://www.google.com.tw/patents/US20060229746?utm_source=gb-gplus-share專利 US20060229746 - Modular controller for an environmental management system
