Abstract
Node location is of great significance as a supporting technology of wireless sensor network (WSN). The information without position would be greatly devalued. So this paper is about location algorithm for nodes of ship-borne WSN based on research on structure of ship and work environment of ship-borne WSN. The whole location process consists of two steps: one is location algorithm among cabins (LAAC), and the other one is location algorithm in the cabin (LAIC). LAAC refers to location with the topology of ship-borne WSN. We can learn which cabin the node lies in. LAIC refers to location based on received signal strength indication (RSSI), we can get distance relationship between nodes by RSSI, and then obtain the specific location by solving this distance relationship. In the last part, this paper verifies the designed location algorithm by experimenting on “A” ship. Experiments show that the location algorithm designed by this paper is feasible.
Highlights
wireless sensor network (WSN) has been widely used in many fields, the study of ship-borne WSN is still in its infancy
If crew cannot attain the position of nodes, emergency measures would be delayed in case of an alarm, so to save time in taking emergency measures, it is necessary to get the position of WSN nodes; that is to say, we should design location algorithm for ship-borne WSN and find out which cabin the node lies in and the specific position within the cabin
By analyzing the characteristics of ship-borne WSN, this paper has designed and verified location algorithm for nodes of ship-borne WSN, which consists of location algorithm among cabins (LAAC) and location algorithm in the cabin (LAIC), and to test the location algorithm, we experimented on the “A” ship
Summary
WSN has been widely used in many fields, the study of ship-borne WSN is still in its infancy. The research for ship-borne WSN mainly contains two aspects: first, some researchers have studied the communication of WSN on shipboard [1, 2]; second, some researchers have proposed the idea of using WSN to monitor work environment on shipboard [3,4,5]. If crew cannot attain the position of nodes, emergency measures would be delayed in case of an alarm, so to save time in taking emergency measures, it is necessary to get the position of WSN nodes; that is to say, we should design location algorithm for ship-borne WSN and find out which cabin the node lies in and the specific position within the cabin
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