Node Localization Algorithm of Wireless Sensor Networks in Coalmine Safety
Jing Di · Jisuanji fangzhen · 2011
Research underground coal mine safety issues.Since the coal mine underground tunnel is long and narrow,the wireless communication condition is poor,and the signal multipath effect is obvious.,causing larger positioning errors in traditional wireless sensor nodes localization method.A nodes localization method was proposed based on the wireless sensor RSSI and centroid localization method.Radio wave propagation loss model was analyzed,the loci RSSI value between anchoring nodes and localization nodes was used to determine weights and increase the adaptability of the method to the environment and positioning accuracy.The experimental results show that the effect of proposed method is more precise than the traditional wireless sensor node location method under the same experiment environment and can meet the requirements of underground person position.