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Wireless sensor networks (WSNs) typically consist of sensor nodes and gateways that operate on devices with limited resources. As a result, WSNs require bandwidth-efficient and energy-efficient application protocols for data transmission. Message Queue Telemetry Transport (MQTT) and Constrained Application Protocol (CoAP) are two such protocols proposed for(More)
With respect to the limitation of the image recognition method by single BP neural network, a new method based on multiple BP neural networks with D-S theory is proposed. By using this method to synthesize each image recognition result of single BP neural network, we can improve the performance of the image recognition. The results of the computer(More)
Interactive genetic algorithms (IGAs) are effective methods to solve an optimization problem with implicit indices. Whereas it requires direct evaluation of user for each individual and the fact limits the population size for user fatigue problem. While, in general to solve many problems with genetic algorithm, it is desirable to maintain the population(More)
In this paper, we propose an improvement on LEACH (Low Energy Adaptive Clustering Hierarchy) protocol in order to monitor the large-scale environment longer and stably with wireless sensor networks. Since being proposed, the LEACH protocol has been regard as a perfect routing protocol of wireless sensor networks (WSNs) while the system was used to monitor(More)
Based on introduction of the background and the limitations of present prediction methods for gas outburst in coal mines, this paper focuses on introducing a new decision-making approach to coal and gas outburst prediction with multi-sensor information fusion. Two of the multi-sensor information fusion methods, neural network and the Dempster-Shafter(More)
In this paper, Lyapunov stability and strong passivity are defined for nonlinear descriptor systems. The new concepts facilitate the formulation of the relationship between the stability and passivity of nonlinear descriptor systems. ALyapunov stability theoremwhich describes a sufficient condition for the systems to be globally asymptotically stable and of(More)
This paper considers the stabilization bound problem for singularly perturbed systems (SPSs) subject to actuator saturation. A state feedback stabilization controller design method is proposed and a basin of attraction depending on the singular perturbation parameter is constructed, which facilitates the formulation of the convex optimization problem for(More)