Research And Application Of Airport Positioning Technology Based On Coverage Conditions

With the sudden development of wireless communication technique and civil aviation,China’s airport construction is expanding.There are increasingly serious problems that passengers can’t reach the target quickly and the management of mobile devices is chaotic.The requirement of location service for airport coverage conditions is increasing.Based on this,to ease the work pressure of airport workers and enhance the service level of passengers,it is urgent to study the indoor positioning technology suitable for the airport environment to meet the positioning needs of passengers.This paper carries out the optimization research of airport indoor location technology and positioning algorithm,develops the airport indoor positioning system and tests its function.Firstly,this paper analyzes the scene characteristics of the airport coverage conditions,considers the positioning difficulties of random disturb environment and NLOS in the airport,and designs the indoor positioning technology based on Bluetooth signal propagation model in combination with the advantages and disadvantages of indoor positioning technology and algorithm.Secondly,in order to improve the stability of Bluetooth RSSI data and reduce the impact of positioning difficulties on positioning accuracy,the indoor positioning algorithm is optimized from three aspects: improved Bluetooth RSSI data filtering algorithm,airport adaptive signal propagation model and quadrilateral weighted centroid positioning algorithm.And experiments are carried out to verify the optimization effect of the enhance algorithm.Furthermore,for the airport management personnel,an airport indoor positioning system based on B/S structure is designed and developed to realize the positioning management of mobile devices,employees and passengers in the terminal building.Finally,the function of the real-time positioning monitoring and path tracking function are tested,verify the positioning precision of the system can meet the request of indoor positioning at the airport.