Wireless sensor network for berth supervision in marinas

In this paper a berth supervision system for marinas is presented. Berth occupancy is detected using wireless ultrasonic sensor nodes installed on every berth. ZigBee RFID tags installed on each boat are used for its identification. RFID readers installed along marina wharfs route tag messages to a central computer. Prototype system is implemented using Atmel ZigBee development kits and Atmel Bitcloud stack. Power consumption and large scale network support are analysed and tested. System functionality was successfully demonstrated in a marina field test. Estimated run times of the boat tag and the berth sensor node are over two, and three years, respectively.