Wireless sensor network target tracking method for energy conservation

A wireless sensor and target tracking technology, applied in network topology, wireless communication, reducing energy consumption, etc.

Active Publication Date: 2013-12-25
上海圣剑科技发展有限公司
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Problems solved by technology

It can be seen that the dynamic switching of network topology is random. Therefore, under the condition of ensuring the accuracy of network tracking, quantitatively analyze the impact of dynamic changes of topology on the overall performance of the network and determine the highest switching frequency to ensure the normal operation of the tracking network. The design, deployment and practical application of the system are of great significance, but the existing methods cannot solve the above problems

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  • Wireless sensor network target tracking method for energy conservation
  • Wireless sensor network target tracking method for energy conservation
  • Wireless sensor network target tracking method for energy conservation

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Embodiment Construction

[0024] In order to illustrate the solutions and advantages of the present invention more intuitively, the technical solutions of the present invention will be further described below in conjunction with the drawings and embodiments.

[0025] 1 Determine the number of nodes in the wireless sensor network according to the established requirements, establish the target database on each sensor node and complete the deployment of the nodes. Each node obtains its own location information and establishes its neighbor node list to build a target tracking network.

[0026] Below, consider a tracking network containing n sensor nodes, with an n-order directed graph Indicates its network topology, δ={1, 2,...,n} is the set of all sensor nodes, edge cut set weighted adjacency matrix is a non-negative adjacent element, and the edge of the directed graph π is represented by (i, j). If adjacent elements It means that node i can receive the information sent by node j, namely Conve...

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Abstract

The invention discloses a specific scheme of wireless sensor network target tracking for energy conservation, which is used for accurately tracking the state of a target under the conditions of energy consumption constraint, topology switching and the like. The working mode of each node in a network is dynamically planned according to the energy consumption of each node and changes of the external condition, so that a net topology is dynamically switched to reduce the network energy consumption. Each node in a tracking network tracks the state information of a target in real time by acquiring target data and performing information exchange with neighbor nodes. By adopting the specific scheme of wireless sensor network target tracking, the influence of dynamic changes of a network topological structure on the overall performance of the tracking network can be quantitatively analyzed, the highest switching frequency for guaranteeing normal work of the tracking network is determined, and on the premise of ensuring the network overall survival time, the robustness and tracking accuracy of the tracking network are improved, and a specific deployment scheme of a network system is provided.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to an energy-saving-oriented wireless sensor network target tracking method. Background technique [0002] A wireless sensor network is a large-scale distributed network that collects, processes and transmits monitoring information within the network coverage in a self-organizing manner, consisting of a large number of deployed stationary or mobile wireless sensor nodes. Moving object tracking is an important application field of wireless sensor network, in which energy-saving efficiency and robustness of the network are the key indicators to ensure the tracking effect. [0003] Restricted by the network's own structure and working environment, sensor nodes generally use their own disposable power supply for power supply. Energy consumption will directly affect the service life of nodes and the overall survival time of the network. Therefore, in practical applications...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W84/18H04W64/00
CPCY02D30/70
Inventor 张丹凌荣耀张文安俞立
Owner 上海圣剑科技发展有限公司
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