Chinese Journal of Sensors and Actuators 

About: Chinese Journal of Sensors and Actuators is an academic journal. The journal publishes majorly in the area(s): Wireless sensor network & Key distribution in wireless sensor networks. It has an ISSN identifier of 1004-1699. Over the lifetime, 1542 publications have been published receiving 3626 citations.

Analysis of Distance Measurement Based on RSSI

Abstract: Wireless Sensor Networks,a novel technology about acquiring and processing information,have been proposed for a multitude of diverse applications.Range-based localization must measure distances between neighboring nodes.Received signal strength indication(RSSI),featuring low communication overhead and low complexity,is our basis of localization on the energy constrained sensor nodes.We first analyze the theory of distance measurement based on RSSI,and then validate that RSSI behavior is reproducible and suffers moderate but well-defined variations as a consequence of dynamic factors.Therefore,it can be concluded that RSSI is applicable,if we only take some measurements such as weight and mean value to eliminate the dynamic factors.The experiments show that measurement error is 2 meters within 15 meter.

Forest Fire Detection System Based on Wireless Sensor Network

Abstract: Wireless sensor network(WSN)is a new research field of information sciencesThis paper presents a forest fire detection system frame based on WSN and its implementation scheme,then discusses some key problems,which focuses on the forest fire forecast modeling,WSN nodes deployment,WSN nodes and forest fire positioning,wireless communication control protocol

Research and Improvement of LEACH for Wireless Sensor Networks

Abstract: Wireless sensor network′s data transmission from routing protocol, it is the network foundation. As WSN is a resource-constrained network, in particular, the limited energy, it must maintain smaller router information and reduce the energy consumption as much as possible. We introduced wireless sensor networks from its architecture、the protocol stack, network-level analysis. On the basis of full understanding of routing protocol, we analyzed low-energy adaptive clustering hierarchy (LEACH) and made improvement programs on it. Both of the algorithms were emulated in OPNET. Simulation results show the effectiveness of the improved algorithm and prove the improved algorithm is much better than LEACH in energy consumption and lifetime.

Survey on Key Technology of WSN-Based Wetland Water Quality Remote Real-Time Monitoring System

Abstract: A survey of the up-to-date methods and technologies of wetland water quality monitoring is presentedThis paper proposed the system frame of WSN-based wetland water quality remote real-time monitoring system,then discussed some key problems,which focuses on soft-sensing technology of turbidity based on intensity of underwater natural light,algorithm of nodes deployment of 3-D WSN for wetland water quality monitoring,algorithm of nodes health diagnosis,and algorithm of in-network aggregation node election of each subnet

Modified Weighted Centroid Localization Algorithm Based on RSSI for WSN

Abstract: Based on Received Signal Strength Indicator(RSSI),a modified weighted centroid localization algorithm is presented.Different from the former method,the sum of the reciprocal of each measured distance will be taken as the weight,instead of the reciprocal of sum.We also introduce a modified coefficient,which reduces the phenomenon of information drown,and the precision of localization is improved.The simulation result shows that the modified weighted centroid localization algorithm can provide an extra maximum precision gain of 17.83 %,compared with the former method.