Print Email Facebook Twitter Indoor Granular Presence Sensing and Control Messaging with an Ultrasonic Circular Array Sensor Title Indoor Granular Presence Sensing and Control Messaging with an Ultrasonic Circular Array Sensor Author Naghibzadeh, S. Contributor Leus, G. (mentor) Faculty Electrical Engineering, Mathematics and Computer Science Department Circuits and systems Programme Telecommunications Date 2014-07-16 Abstract Providing automated granular control of lighting, along with user-driven control, results in an energy-efficient smart lighting system design while catering to personal occupant preferences. Two functional ingredients in such a system are: (i) sensing that provides granular information on occupant location, and (ii) a communication system to transmit control messages from a user. We consider an ultrasonic circular array sensor that provides the dual functionality of granular occupant sensing and a communication receiver for user control transmissions. A ceiling-mounted sensor configuration with a co-located ultrasonic transmitter and array receiver is considered. Algorithms for localization and tracking of an occupant in an indoor environment is presented.The resulting occupant location and tracks may be used for energy-efficient lighting. In addition, a user may control lighting by sending messages at a near-ultrasonic frequency through a mobile device, which are processed by the receiver array, and used to adapt a requested parameter of the lighting system. The proposed sensing and messaging solution is tested in an indoor office space with an 8-element receiver array sensor prototype. The efficacy of both systems is evaluated empirically and through simulations. Subject localization To reference this document use: http://resolver.tudelft.nl/uuid:4f915b5c-2ff4-4b48-aba7-ae8983212e28 Embargo date 2014-08-01 Part of collection Student theses Document type master thesis Rights (c) 2014 Naghibzadeh, S. Files PDF MSc_Naghibzadeh.pdf 2.86 MB Close viewer /islandora/object/uuid:4f915b5c-2ff4-4b48-aba7-ae8983212e28/datastream/OBJ/view