Huang Daoping

Energy Efficient Routing Protocol Based on Residual Energy and Energy Consumption Rate for Heterogeneous Wireless Sensor Networks

This paper investigates a heterogeneous sensor network with two different types of nodes possessing same initial energy but sending different length data packet to base station. It is found that conventional routing protocols can not finely adapt the network model we proposed, therefore, an energy efficient routing protocol based on residual energy and energy consumption rate (REECR) is proposed. Simulation results show that the algorithm proposed balances the energy consumption better compared with conventional routing protocols and achieves an obvious improvement on the network lifetime.

Adaptive statistic process monitoring with a modified PCA

In this paper, we propose a modified adaptive PCA method for process monitoring. The basic idea of our approach is to use the modified PCA to adaptively extract the essential feature components that drive a process and combine them with process monitoring techniques. The Combined Index chart, which puts SPE statistic and T2 statistic together, is presented as online monitoring chart and then contribution plot of this statistical quality is also considered for fault identification. The proposed monitoring method was applied to fault detection and identification in a wastewater treatment plant (WWTP). The simulation results clearly show the power and advantages of the modified PCA monitoring in comparison to classical PCA monitoring

SPN Modeling for GDCS Task Scheduling

Reasonable and fault-tolerance scheduling mechanism is the key factor of effective use the grid resource and guarantee the implement of applicable task. For Grid-based Distributed Control System (GDCS), this paper introduces the two-level task scheduling system frame: System scheduler sorts all upload tasks by functions or attributes, then assigns local area scheduler to dispatch tasks to resource nodes, and handles fault-tolerance dynamically during the process of task. Considering two types subtask of complete independence and non complete independence of GDCS, establishes a fault-tolerance mechanism model by Stochastic Petri Nets (SPN) for local areas scheduler, describes the complete independent subtask dispatching and allocating policies, and proposes a dynamic scheduling train of thought of non complete independent subtask.