Research On The Technology For Personnel Localization In Straw Burning

Straw burning has become a common social phenomenon in the annual summerand autumn, and it carried environmental pollution and harm to human health.Especially around the trees and poles in the villages, once the fire happened,theconsequence is hardly worthy of belief. The air visibility and visible range is reducedbecause of the smoke produced by burning. And it affects the normal operation ofrailway and highway directly, brings a great threat to the personal safety and leads toaccident easily. So that get the specific location of the straw burning timely andaccurately is very important.Before the ZigBee technology and the IEEE802.15.4protocol appear, Satelliteremote sensing and3S technology was used in the area on the monitoring of strawburning.The relevant government departments get the straw burning place, time andthe distribution range of details through the remote sensing monitoringinformation,then take corresponding measures when they understand the specificsituation.ZigBee technology has become a new method for the straw burningdetection and location, and it has great advantage compared with3S technology interms of cost control. Based on this, this paper adopts ZigBee wireless communicationtechnology for the design and research of positioning system straw burning.At first，I introduce the current situation of straw burning control and supervisionand compare several wireless communication means, then analyze the existencequestion of existing localization system,considered from the environment andtechnological development angle, choose the ZigBee technology as the straw burninglocalization system’s solution.Next, Through the comparison of several common ZigBee networking mode, Iuse the cluster tree into wireless location network in the monitoring area. In order todesign the gateway, reference node and the monitoring node, I selected the CC2530soc system as the construction of network hardware.Once more, I compared with several kinds localization method based on thewireless sensor network, and selected the localization algorithm based on RSSI torealize personnel localization, and researched TI’s Z-Stack structure and eachagreement and its operational mechanism deeply. Refer to the Z-Stack, I completedthesoftware programming design of mesh network and the gateway, the reference nodeand the blind node’s personnel localization function and correspondence design between the gateway and the PC.Finally, I carry on the localization function test of the positioning system, andanalyze the influence on the positioning error and positioning accuracy in condition ofdifferent node radius and reference node ratio.The simulation results show that theperformance of improved DV-Hop algorithms has obvious advantages compared tooriginal DV-Hop, improved DV-Hop algorithms can reduce the positioning error andcan improve the accuracy of the positioning system.