Ocean wireless sensor network positioning method

Abstract

The invention provides an ocean wireless sensor network positioning method. The method includes the steps that multiple node combinations are deployed in the ocean, each node combination comprises a water surface node and an ocean floor node, wherein the water surface nodes float on the water surface, the ocean floor nodes are connected with the water surface nodes, deployed and fixed to the ocean floor, and the partial water surface nodes are provided with GPS positioning devices; the water surface nodes provided with the GPS positioning devices obtain position information at different time and send the position information to the ocean nodes connected with the water surface nodes; the positions of the ocean floor nodes are obtained through calculation based on the geometric principle according to the received position information of the water surface nodes at different time, and the ocean floor nodes connected with the water surface nodes provided with the GPS positioning devices are positioned. The algorithm cost is low, and positioning efficiency is high.

Description

technical field [0001] The invention relates to marine wireless sensor technology, in particular to a positioning method for marine wireless sensor networks. Background technique [0002] A wireless sensor network (Wireless Sensor Networks, WSN) is an Ad- hoc network, because this kind of network has strong adaptability, easy deployment, easy management, and the ability to monitor the deployed environment at a small scale and close range, it can obtain the monitoring information we need, and can be applied to military affairs, environmental monitoring and protection, and object tracking , health care, community security, intelligent transportation, smart city and other fields, so it has developed rapidly. [0003] With the development of wireless sensor networks, wireless sensor networks can be deployed in complex and variable ocean environments to realize real-time monitoring of the ocean. The marine wireless sensor network generally includes the network part deployed on ...

AI Technical Summary

Problems solved by technology

However, for the underwater environment, especially for the deep sea environment, it is very difficult to accurately deploy the anchor node on the seabed

This uncertainty in the location of anchor nodes has an impact on localization algorithms that rely on underwater anchor nodes

For another example, when the nodes are deployed on the sea, it is generally necessary to deploy the nodes on the buoys, so these nodes will fluctuate randomly with the wave fluctuations, and these random fluctuations make those methods suitable for locating land nodes ineffective. Applied at sea

Images