Design Of Indoor Location Service System Based On Bluetooth Beacon

With the development of science and technology and the improvement of people’s living quality,location service has become an essential part of more and more people’s lives.Location service system is divided into outdoor location service system and indoor location service system.GPS global positioning system after 20 years of development has been very mature,can provide a wide range of high-precision outdoor location services,and widely used in the world.With the rapid development and popularization of the mobile terminal,the indoor location service technology has developed rapidly in recent years.Indoor positioning technology is divided into multiple,according to the needs of different positioning can choose different positioning technology.2013 Apple Corp has launched a Bluetooth iBeacon protocol based on Bluetooth,Bluetooth 4 low-power indoor positioning has become a hot spot in the field of indoor positioning.The indoor positioning method based on Bluetooth 4 has the advantages of low power consumption,low cost,high precision and easy deployment.Therefore,the indoor location service system using Bluetooth beacons(need to accept equipment support 4)to complete the positioning.Because the iBeacon positioning scheme is implemented on the IOS platform,this paper designs a set of indoor location service system based on Android platform.The main contents of this paper are as follows: firstly,the distribution of RSSI signal is analyzed.According to the distribution of RSSI signal,the RSSI signal propagation model is established.Then using the method of RSSI ranging to locate the test,after the test found that the positioning accuracy of RSSI ranging method is not suitable for the use of the system.Then the method of fingerprint location is used to complete the system design.The fingerprint positioning system includes fingerprint database,positioning algorithm,cloud server and server four parts.The traditional Bluetooth fingerprint localization system only considers a location area,and it needs to set up a number of fingerprint database when it comes to the localization.The design of fingerprint positioning system combined with KMeans clustering algorithm to achieve the localization of the region,to make up for the shortcomings of the traditional Bluetooth fingerprint positioning system.Finally,the system is tested,and the system has certain application value.