Moving Target Tracking in Three Dimensional Space with Wireless Sensor Network

With the constant enlargement of the range of application of wireless sensor network, extending wireless sensor network’ life cycle has attracted more and more attention under the circumstances of limited node energy. On account of three-dimensional space background for the environmental monitoring of high buildings, this thesis put forward an improved energy-saving optimum algorithm of LEACH: improving probability of high-energy node elected as cluster head during cluster head election; selecting a network with the minimum communication cost. The simulation experiment indicates that under the layout of three-dimensional space, improving algorithm makes the load of wireless sensor network more balancing, and extending network’ life cycle. what’ s more, simulation result, in a way, serves as theoretical basis for a further study on the life cycle of wireless sensor network.

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Three-Dimensional Wireless Sensor Network Localization Algorithm Based on DV-Hop

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.155-156.445 ◽

2012 ◽

Vol 155-156 ◽

pp. 445-449

Author(s):

Fu Cai Wan ◽

Yu Ji Shen

Keyword(s):

Wireless Sensor Network ◽

Sensor Network ◽

Dimensional Space ◽

Average Distance ◽

Three Dimensional ◽

Wireless Sensor ◽

Localization Algorithm ◽

External Anchor ◽

Anchor Nodes ◽

Improved Algorithm

Node positioning technology in wireless sensor network plays an important role in the whole network, and a lot of scholars engage in this field. According to the background that wireless sensor network is applied in Three-Dimensional space, an improved algorithm is proposed in this paper. The algorithm makes the average distance of each hop more rational through choosing the external anchor nodes. After the achievement of the unknown nodes positioning, initial positioning location would be corrected in order to get a higher positioning accuracy. Simulation results show that the accuracy of the improved algorithm is 13% higher than the traditional DV-Hop algorithm.

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An Extraction Method of Volleyball Spiking Trajectory and Teaching Based on Wireless Sensor Network

Security and Communication Networks ◽

10.1155/2021/9966994 ◽

2021 ◽

Vol 2021 ◽

pp. 1-11

Author(s):

Meifang Wang ◽

Zhange Liang

Keyword(s):

Wireless Sensor Network ◽

Sensor Network ◽

Extraction Method ◽

Teaching Method ◽

Dimensional Space ◽

Three Dimensional ◽

Wireless Sensor ◽

Data Link ◽

Speed Error ◽

Spatial Coordinates

It is helpful to analyze volleyball spiking technology and improve spiking quality to extract volleyball spiking trajectory. This article studies the extraction method and teaching method of volleyball spiking trajectory based on a wireless sensor network. The acceleration sensor and gyroscope sensor are used to collect the spiking action state information of volleyball players. The collected information is transmitted to the PC terminal through the wireless sensor network, including physical layer, data link layer, network layer, transmission layer, and application layer, using the LEACH clustering routing protocol algorithm. In the PC terminal, the feedback filtering method is used to preprocess the received information and calculate the integral of each sensor node’s acceleration, connecting the spatial coordinates of each time to obtain the upper limb trajectory in three-dimensional space and realize the trajectory extraction of volleyball spike action. The experimental results show that the position error is less than 0.01 m and the speed error is less than 0.15 m/s. The application of this method in volleyball teaching can effectively improve the quality of volleyball teaching.

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