Dynamic clustering mechanism-based target tracking method for wireless sensor network

A wireless sensor and target tracking technology, applied in the field of target tracking, can solve problems such as complex calculations, high information acquisition, and no consideration of energy factors
CN102123473AInactive Publication Date: 2011-07-13SHANDONG UNIV
3 Cites 50 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2011-07-13
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a dynamic clustering mechanism-based target tracking method for a wireless sensor network. In the method, an initial cluster head is formed by a method for broadcasting the END values of nodes in a region; the residual energy of the nodes and distances from the nodes to a target are considered at the same time; in the process of selecting the nodes which participate in target tracking, the condition of the residual energy of the nodes is considered, and only the nodes that the received signal strength indicator (RSSI) signal strength of a received target is more than a certain threshold value are selected to participate in the tracking; the concept of a temporary cluster head is introduced into dynamic clustering adjustment, so that the target is not lost in the process of establishing a next cluster; and the target is tracked by a least square method so as to perform curve fitting on the track of the target. Based on a cluster head selecting mechanism with RSSI strength, factors such as a clustering algorithm, the residual energy of the nodes, the RSSI signal strength of the target and the like are considered, so that tracking precision is ensured, energy consumption is reduced, and the service life of the network is prolonged.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field

[0001] The invention relates to a target tracking method used in a wireless sensor network, and belongs to the technical field of target tracking. Background technique

[0002] Wireless sensor network is used to measure and control the environment, and one of the important applications is target tracking. Due to the small size and low price of sensor nodes, and the random deployment of sensor networks, which are self-organizing, robust and concealed, sensor networks are very suitable for the location and tracking of moving targets. On the other hand, wireless sensor networks have strict limitations on the battery energy and computing power of network nodes, a large number of nodes and high-density deployment, and complex network topology changes, which make relevant research extremely challenging.

[0003] Many scholars at home and abroad have conducted in-depth research on single target tracking by wireless sensors, and have proposed many target tracking algorithm...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More