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Lou X.-C.,Fair Friend Institute of Electromechanics | Yu X.,De Zhou Vocational and Technical College
Applied Mechanics and Materials

Wireless sensor network coverage control is studied under conditions to ensure quality of service, in order to maximize network coverage, covering the use and application of the algorithm optimization strategy, contribute to the effective control of the network node energy and improve the perceived quality of service network lifetime extension of time. This paper presents an improved genetic algorithm to optimize the network effective coverage of the target, achieved through the coverage control algorithm crossover and mutation operation and a detailed analysis of the impact of sensing radius of coverage performance. Simulation results show that the algorithm is effective coverage reaches more than 85%, can effectively achieve wireless sensor network coverage optimization. © (2014) Trans Tech Publications, Switzerland. Source

Guo X.,Fair Friend Institute of Electromechanics
Communications in Computer and Information Science

With the limited resources, it is difficult for wireless sensor network to achieve a long time, continuous, high-speed acquisition of multimedia information and a real-time, reliable transmission of high-volume sampling data. This article proposed the novel data acquisition strategy based on compressed sensing theory, which can perfectly achieve the long time, real-time, reliable transmission of high-volume multimedia data in wireless sensor network. Reasonable experiments were designed to verify the effectiveness of the algorithms, and the experiment results show that: the proposed multimedia signal acquisition strategy is reasonable, practicable, and more suitable for the wireless multimedia sensor networks. © 2012 Springer-Verlag. Source

Yang A.,Fair Friend Institute of Electromechanics | Jin Y.,Shanghai JiaoTong University
Zhongguo Jixie Gongcheng/China Mechanical Engineering

A 1:50 scale model and the corresponding anti-seismic isolator of a quayside container crane were developed herein. A hammering modal test and a series of seismic shaking table tests were successively carried out to obtain the dynamic characteristics and the seismic responses of this 1:50 scale model with and without anti-seismic isolator. The experimental results indicate that the crane itself has relatively high earthquake-resistance capacity and overall stability, and can satisfy the seismic design requirements. When the anti-seismic isolator is used, the bending strain and acceleration responses at different nodes are significantly reduced. It shows that the design of this anti-seismic isolator is accurate and rational, and has a good isolation effect. Source

Han A.,China Jiliang University | Guo X.,Fair Friend Institute of Electromechanics | Liao Z.,China Jiliang University | Chen Z.,China Jiliang University | Han J.,China Jiliang University
Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering

In order to improve the effectiveness of the existing classification methods of pests, a novel classification method of pests was presented by using compressed sensing theory. In the proposed method, a large number of the representative training samples of pests were used to construct the training samples matrix, and then the sparse decomposition representation of the testing samples of pests was obtained by solving the l1-norm optimization problem, which had distinct class information and could be used for the different species of pest classification directly. The 12 species of stored-grain pests and the 110 species of common pests were separately classified by the proposed method, and the classification precision reached around 92.9418%, 98.2877%, 78.8651% and 61.5938% respectively under 4 kinds of different experimental conditions. The experimental results indicated that the application of compressed sensing theory in the classification of pests was practical and feasible. Source

Guo X.H.,Fair Friend Institute of Electromechanics
Applied Mechanics and Materials

In order to improve the performance of the network control system based on the wireless sensor networks, a multi-hopping wireless communication and their effect on network time-varying delay is analyzed, and a new stabilizing controller is proposed based on the a client-server model in this paper. Using of the linear matrix inequality and switched control system theory to obtain the stabilizing conditions of the close loop control system and give the output feedback controller design approach. Preliminary experimentation indicates the rationality and effectiveness of the proposed control algorithm. © (2013) Trans Tech Publications, Switzerland. Source

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