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Coverage issue in directional sensor networks (DSNs) is different from traditional omni-directional wireless sensor networks (WSNs) due to the limited angle of view and adjustable working direction. This paper sets up a model of monitoring area and a model of sensing area according to the unique characteristics of directional sensor and then derives an optimization model for area coverage ratio maximization...
To diagnose the specific reasons that lead to deterioration of controller performance and improve the diagnostic accuracy, a performance diagnosis method based on eigenvector subspace K-mean clustering is proposed. Firstly, the number of standard deterioration performance subspace with different degrees of deterioration information is increased on the basis of the eigenvector subspace distance diagnosis...
It is an urgent need to find an objective way to estimate the degree of fatigue of employees. In this study, we designed a monitoring and estimation system for the degree of fatigue. This paper explains a long-term pedaling experiment that we use it to explore the possibility to use only the time sequence data of head movement during pealing to estimate the fatigue. While we show the possibility for...
In this paper, we will propose a Cooperative Power and Contention control MAC (CPC-MAC) protocol in Cognitive Radio Ad Hoc Networks to solve the multichannel hidden terminal Primary User (PU) problem by build appropriate number of monitor nodes in suitable positions. There are two functions in this mechanism. First, secondary user (SU) transmitter sends the RTS frame including transmission power to...
Due to the unique features such as high humidity and high salinity within marine environments, marine concrete corrosion is a severe problem and efficient monitoring methods are needed. However, commonly used methods, such as break examination, requires destructive testing of the structure and are not able to monitor corrosion online. In this paper, we present a new corrosion monitoring method for...
This paper presents a predictive control strategy named as generalized predictive control with closed-loop model identification for burn-through point (BTP) in sintering process. The closed-loop model identification method describes the dynamic characteristics of sintering process. Based on the model, the BTP generalized predictive control model predicts BTP accurately and computes the strand velocity...
The efficiency and the effect of fault diagnosis are increasingly important for electric locomotive. However, due to the complexity of the locomotive system configuration and the locomotive inferior running condition, it is much difficult to realize the fault diagnosis system on electric locomotive. In this paper, a multi-objective fault diagnosis algorithm based on multi-agent is proposed. It considers...
Telemedicine system has become as a major research topic due to the increase of aging population and chronic diseases. Patients usually transfer their test results to the hospitals or doctors through telemedicine system. The purpose of this report is to combine the current medical equipments and services with and the most recent network technology. Through telemedicine system, patients will have more...
This study proposes a multi-agent based architecture to support the intelligent home environment (IHE) control with an assistive user interface. The architecture is composed of six different agents (including assistive user interface, broke, appliance control, security surveillance, environmental monitoring, and communication agents) and an IHE controller. They interact in coordination and cooperation...
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