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Coverage control method of wireless sensor network

A wireless sensor and control method technology, applied in wireless communication, network topology, network planning and other directions, can solve the problems of complex calculation, high network cost, large network traffic, etc., to prolong the survival time, improve the coverage, the topology structure Flexible and variable effects

Inactive Publication Date: 2012-10-17
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0008] The disadvantages of the above-mentioned technical solution 2 are: all sensor nodes in this solution are mobile nodes, the network cost is high, the calculation of the magnitude and direction of the virtual force is complicated, and all nodes move at the same time, resulting in a huge network traffic

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  • Coverage control method of wireless sensor network
  • Coverage control method of wireless sensor network
  • Coverage control method of wireless sensor network

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Embodiment Construction

[0052] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0053] The present invention provides a coverage control method of a wireless sensor network based on target tracking, pre-deploying static nodes according to historical data, cooperating with movable nodes, adjusting the position of movable nodes to achieve effective coverage of the predicted area, the method includes step 101 ~105:

[0054] 101) Calculate the hotspot area set, and the initial value is an empty set. Hotspots refer to high-density areas, and the algorithm can calculate the set of high-density areas from the historical trajectory of the monitored target's movement. Algorithm flow chart see figure 2 , including steps 201~206:

[0055] 201) Trajectory me...

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Abstract

The invention discloses a coverage control method of a wireless sensor network, relating to the technical field of wireless sensor networks. The coverage control method comprises the steps of: 101, determining a hot spot region set according to a historical movement track of a to-be-monitored target; 102, configuring a static node in the determined hot spot region set, and randomly configuring a movable node; 103, after the target to be monitored enters a to-be-monitored region, predicting a region of the to-be-monitored target, possibly occurring in future; 104, detecting whether the predicted region is covered, if the predicted region is covered, ending, and if not, continuously executing the step 105; and 105, completely covering the predicted region by mobilizing the movable node. According to the invention, through predicting and regulating positions of the nodes, when no target passes through, the to-be-monitored region is partially covered, and the predicted region is effectively covered after the target occurs, thus the coverage degree of the to-be-monitored target is greatly improved, a topological structure is flexible and variable, and the network survival time is effectively prolonged.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to a coverage control method of a wireless sensor network. Background technique [0002] Network coverage is one of the basic issues of wireless sensor networks, that is, how to deploy sensor network nodes to maximize network coverage while ensuring a certain quality of service (QoS). The measurement of network coverage can enable us to know whether there are monitoring and communication blind spots, and understand the coverage of wireless sensor networks in the monitored area, so as to readjust the distribution of sensor nodes or guide the improvement measures that can be taken when adding sensor nodes in the future. More broadly, we can also adjust the density of network coverage, set hotspots for important areas in the monitored area, and deploy more sensor nodes to ensure the reliability of measurement data. [0003] At present, most coverage control algorithms...

Claims

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Application Information

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IPC IPC(8): H04W16/18H04W84/18
Inventor 邱雪松高志鹏金梦王智立熊翱芮兰兰亓峰
Owner BEIJING UNIV OF POSTS & TELECOMM
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