An integrated lighting control and threat detection system is provided. Once one of the threat detectors determines that a hazardous condition exists, it transmits a threat message to the lighting control system. The lighting control system then operates to turn on illumination within the dwelling to...http://www.google.com.hk/patents/US7362220?utm_source=gb-gplus-share專利 US7362220 - System and method for providing controlled illumination during detected hazardous conditions
