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POOL-mechanism-based cluster regulation algorithm for target tracking in WSN (Wireless Sensor Network)

A technology for target tracking and algorithm adjustment. It is used in advanced technology, sustainable buildings, climate sustainability, etc., and can solve problems such as energy holes and excessive energy consumption.

Inactive Publication Date: 2012-04-04
SHANDONG UNIV
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Problems solved by technology

[0003] In the traditional target tracking algorithm, when the target moves slowly or is close to stationary, the cluster head node acts as the cluster head for a long time, the energy consumption is too fast, and the energy hole is formed. The present invention proposes a cluster head pool (POOL) mechanism based cluster adjustment algorithm

Method used

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  • POOL-mechanism-based cluster regulation algorithm for target tracking in WSN (Wireless Sensor Network)
  • POOL-mechanism-based cluster regulation algorithm for target tracking in WSN (Wireless Sensor Network)
  • POOL-mechanism-based cluster regulation algorithm for target tracking in WSN (Wireless Sensor Network)

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Embodiment 1

[0048] Embodiment 1: a kind of WSN target tracking cluster adjustment algorithm based on POOL mechanism, such as Figure 1 to Figure 5 As shown, it is achieved by the following way:

[0049] 1. Track the establishment of clusters

[0050] In order to save energy, all nodes of the wireless sensor network are in a dormant state when there is no target tracking. When the target is close, multiple sensor nodes near the target detect the target signal at the same time, when the node detects the signal energy intensity (RSSI) value of the target is greater than RSSI 0 When , it is judged that the target enters the tracking range, and these nodes form a set They form a tracking cluster together, and participate in the process of setting up a tracking cluster and selecting a cluster head; the RSSI value received by a node is smaller than the RSSI 0 , or no target signal is detected, the node will continue to remain dormant.

[0051] The detected target signal RSSI value is greate...

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Abstract

A POOL-mechanism-based cluster regulation algorithm for target tracking in WSN (Wireless Sensor Network) belongs to the technical field of wireless sensor networks and is used for target tracking in a wireless sensor network. In the traditional algorithm for target tracking, when the target moves slowly or is in the process of approximating stillness, a cluster head node consumes energy too quickly for serving as the cluster head for a long time, so that energy hole is caused easily. The algorithm provides a cluster head rotation mechanism based on a POOL mechanism; during the process of tracking a target with a variable motion in the wireless sensor network, a threshold value is set at the time when a tracking node serves as the cluster head, and when the set time is up, another node is selected from a POOL (a cluster head pool) to serve as a new cluster head according to the factors such as surplus energy, the RSSI (Received Signal Strength Indication) aparts from a target node, and the like. During the process of variable motion of the target, the structure of the POOL and the data update unceasingly. The mechanism ensures smooth transfer of the cluster head and can reduce energy consumption and prolong the service life of the network while ensuring the tracking accuracy.

Description

technical field [0001] The invention relates to a WSN target tracking cluster adjustment algorithm based on a POOL mechanism, and belongs to the technical field of wireless sensor networks. Background technique [0002] Wireless sensor network (WSN) is composed of a large number of sensor nodes with small size, low cost, perception, communication and data processing capabilities. It has the characteristics of self-organization and good concealment. It is very suitable for positioning and track. WSN is powered by batteries. Once deployed, it is difficult to replace batteries. Therefore, energy limitation is one of the important characteristics of WSN. How to reduce network energy consumption is a key issue that must be considered and solved when designing a target tracking system. In fact, network energy consumption Equilibrium and target tracking accuracy are the two main research problems of target tracking algorithms in wireless sensor networks. Due to the large number a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02H04W84/18
CPCY02B60/50Y02D30/70
Inventor 陈曙杜联柱
Owner SHANDONG UNIV
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