Research And Application Of Mobile Object Location In Airport Terminal Area Based On Internet Of Things

With the development of communication technology and automation,the level of intelligence is increasing.In the wisdom and the background of economic globalization,the development of science and technology and social progress makes the competition between airports to provide services from opportunity and orderly transformation needs to provide more effective and comfortable,intelligent customer experience.It needs that the airport to change its existing mode of service and take the main services at the airport as its core.To optimize the waiting experience and equipment management,this will not only enhance the competitiveness of the airport,but also be more conducive to the improvement of airport service evaluation.Real time positioning of mobile service equipment and terminal personnel is an effective way to improve airport service.Airport terminal location is a typical indoor location.With the airport intelligent propulsion and persons in airport lounge area easy to miss the flight,the airport should establish a more accurate positioning mechanism to enhance the level of service.At present,the most popular GPS positioning technology is mainly used for outdoor positioning.When it is used indoors,the attenuation of the signal is serious because of occlusion.Moreover,the indoor positioning technology is often disturbed and the positioning accuracy is not enough.Based on the analysis of the specific environment of airport terminal area,this paper applies ZigBee technology and PSO-BP algorithm to wireless location.According to the actual requirements of airport mobile equipment and terminal personnel positioning,a positioning solution based on ZigBee network is proposed.Based on the ZigBee positioning technology,the research and development of location module and algorithm are carried out.1)firstly,the theoretical basis of airport terminal location and the actual location demand of airport terminal area is analyzed.The airport ground moving object positioning architecture based on ZigBee technology is designed.Thetechnical features of ZigBee meet the actual needs of airport mobile equipment and personnel positioning.In hardware,CC2530 chip is used to develop the node in the positioning structure of airport terminal area.At the software level,the ZigBee network protocol is studied.2)the location algorithm of airport terminal sensing network is studied.The basic principle of location algorithm is analyzed.Because the airport terminal area is large,the distribution of mobile equipment and terminal personnel is complex.The airport environment has great influence on the wireless signal.Through the research of signal propagation model,RSSI positioning algorithm is selected.PSO-BP algorithm is used to optimize the performance of the algorithm and the positioning process of the algorithm is illustrated.BP neural network belongs to self-learning network.In the past BP network,the most commonly used method is to adjust the weights through gradient information.But it is easy to fall into local extremum.Particle swarm optimization is applied to BP networks.By using the optimized particle swarm algorithm,the characteristics of group parallel search are searched for the appropriate initial weights and thresholds of BP networks.3)finally,on the basis of the research of airport terminal area Internet of things positioning platform and wireless node positioning intelligent algorithm,the application of airport terminal location is studied.It shows that the research has good practical effect in the optimization of airport terminal area location technology and anti-jamming.It can reduce the interference of environment and other factors on positioning results.In recent years,positioning technology has been developing.Although the positioning structure studied in this paper has done a great deal of work in performance and effectiveness,it still needs to be improved.For example,node power consumption,location speed,effective organization of network,increase of interface function,location method and so on need to be promoted.