Mobile node positioning method based on speed sampling zone in wireless sensor network

The invention provides a mobile node positioning method in a wireless sensor network to construct a node motion model. The Newton interpolation method is used for roughly obtaining node motion tracks and assuming a maximum moving speed and a minimum moving speed aiming at node moving speed. With the...

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Bibliographic Details
Main Authors SHEN ZHIFA, SHANG FENGJUN, XU KE
Format Patent
LanguageChinese
English
Published 21.08.2013
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
WIRELESS COMMUNICATIONS NETWORKS
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Summary:The invention provides a mobile node positioning method in a wireless sensor network to construct a node motion model. The Newton interpolation method is used for roughly obtaining node motion tracks and assuming a maximum moving speed and a minimum moving speed aiming at node moving speed. With the assumed speed interval, a sampling zone is narrowed as much as possible, finally, node position filtration is carried out, positions where nodes can impossibly exist are eliminated, and therefore the possible range of the nodes and prediction workload are further reduced. Through node motion model construction, node motion prediction is carried out, the positions where the nodes can impossibly exist are eliminated, the positioning error rate is lowered, and therefore positioning precision of nodes to be positioned is improved.
Bibliography:Application Number: CN20121584490