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Unbalance energy consumption is an inherent problem in wireless sensor networks characterized by multi-hop routing and many-to-one traffic pattern. Uneven energy dissipation can waste a lot of energy and cost. In this paper, a new deployment strategy of WSN that gathers several means is proposed to minimize cost. The regular hexagonal cell architecture is employed to build network that satisfies the...
A mobile terminal voting system based on android platform is presented and implemented to solve the problems of traditional voting and e-voting system in this paper. Joining the static-password mechanism and the dynamic-password mechanism, a double identity authentication scheme is presented based on the symmetric algorithm, which conquers challenge-response protocol weakness. It achieves double identity...
This paper proposes a method, which makes use of the band-pass property of the wavelet transform, combining the wavelet analysis with autocorrelation function to extract melody characters from the humming signal. After the wavelet transform, the humming signal is weighed, and then combined with auto-correlation function for signal analysis. The weighted factors in the design, gives full consideration...
On the basis of the characteristic of traffic simulation technique, which is intuitionistic, exact, agile and can be tested repetitively, this paper deal with the relation between the Intelligent Speed Adaptation (ISA) and the driving safety. Different percentage of ISA vehicles and their speed distribution were constructed to simulate the traffic flow based on Vissim. Velocities of vehicles in different...
The problems existing in the product design process were analyzed. Applying artificial intelligence theory and technology to the product design field is discussed and one frame of a product design expert system is proposed. According to procedure of product design, the expert system for product design consists of three modules: the information and the data compilation, the assistance innovation design,...
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