Ultrasonic Technology Provides for Control of Lighting

A novel application of ultrasonic technology is the control of lighting within a space. Using this technology, a sensing device may be designed that will detect the motion of a person and control lighting, achieving significant energy cost avoidance without sacrificing the quality of ilumination. The design of a commercially successful ultrasonic lighting control system is described. Reasons for selecting ultrasonic technology over other motion-sensing methods, as well as significant differences from intrusion detection systems, are discussed. Applications to existing building wiring systems pre illustrated with an explanation of the significance of each. Data accumulated from several gstallations of this system are presented to verify tie actual energy reduction achieved using this ultrasonic system. The use of this system is justified as an alternative to conventional wall switches for control of lighting and other occupancy related loads in new and remodeled spaces because of its demonstrated energy management (cost avoidance) capabilities.