An A-to-N mark monitoring system based on wireless sensor network

The A-to-N mark(aids to navigation mark) is an important composing part of the transportation safe guarantee system at sea. For the safety of sail, it is very important that the sea navigation marks are insured accurate position and working normally, so they should be controlled and managed effectively. In this paper, a new monitoring system based on the Zigbee wireless sensor network is showed. According to the Xiamen-Kinmen route,the Zigbee wireless sensor network communication model focuses on the physical layer, MAC layer, and the basic network layer is established. Its performance such as the multi-hop network packet loss rate, delay, throughput and energy consumption is analysed by the NS2 simulation software. The simulation results show that when in the case of low network load, the packet loss rate of the Zigbee wireless sensor networks is very low; end-to-end delay is low and increases steadily with the hops, so you can strictly control the delay; as a result of the use of super-frame structure, nodes can turn off the transceiver at the Non-active area to reduce energy consumption. Applying in practice show that the monitoring system can satisfy for the need of the management of the sea A-to-N marks, has a good ratio of performance and price, and is being popularized application.