Factory Personnel Location System Based On UWB Research And Implementation

With the development of Internet information technology and the rapid development of wireless communication technology,people in the society begin to have a great demand for wireless location technology.Outdoor positioning technology such as GPS,the beidou system has long been a household name,but the influence of the indoor environment is complex,outdoor positioning technology can't meet the requirements of indoor positioning,especially in some factories,airport,railway station and coal plants inside large buildings,outdoor positioning technology of signals is affected by complex structures lead to weaken,leading to unable to pinpoint.In order to solve this difficult problem,some research institutes have begun to study some wireless indoor location technology.Some mature technologies,such as bluetooth technology,radio frequency identification technology and other positioning technologies,have a common disadvantage,that is,the positioning error is unstable,will be blocked by the long distance,isolation and other factors will lead to inaccurate positioning.Along with the development of the technology constantly,there is a kind of indoor positioning technology stand out in the middle,and that of uwb technology,relative to other industry by using indoor positioning scheme for ultra wideband key using no carrier communication technology,relying on the narrow pulse mode to realize the data transfer,this method can significantly increase communication bandwidth,so as to ensure that can obtain a more ideal data,in order to help the follow-up precise positioning,in the field of high precision of ranging and location is under a lot of attention.The current positioning system is relatively rare,most has the transport is relatively short,high power consumption and location accuracy,smaller for such practical problems,this article is based on detailed research positioning scheme and algorithm of multiple perspectives,selected to time plan,and to effectively use it to uwb positioning scenario,the basis of the positioning demand plan to discuss with factory,and developed on the basis of the pulse uwb positioning products,to ensure that the relevant label conform to the requirements of basic power and precision.The main research work of this paper is as follows:(1)In combination with the actual complex environment of the factory,the positioning algorithm may have inaccurate positioning accuracy.Based on the problem of large errors in the positioning system,this paper combined with the idea of tabu-search algorithm,proposed to improve the particle swarm optimization algorithm,the improved TS-PSO hybrid algorithm can realize the effective positioning of personnel,through data comparison with the commonly used positioning algorithm,verified that THE TS-PSO hybrid algorithm can effectively improve the positioning accuracy.(2)In the factory personnel positioning system,in order to improve the transmission efficiency of the signal and reduce the loss,this paper adopts the three-side positioning method for positioning,and lets the personnel walk around in the coverage area of the positioning base station wearing the positioning tag,and carries out test experiments.Through experimental verification,this method effectively improves the signal transmission.(3)Based on Ultra Wide Band(UWB)technology and combined with TS-PSO hybrid algorithm,the UWB factory personnel positioning system is designed and implemented,and the system functions mainly include: historical track playback,alarm processing,attendance record,etc.The system can satisfy the factory and other enterprises to carry on the high-precision indoor positioning function to the staff,through the experimental test of the system,verified the feasibility and practicability of the personnel positioning system.