基于數(shù)據(jù)融合技術(shù)的室內(nèi)定位系統(tǒng)研究
[Abstract]:At present, there are two kinds of technologies available in outdoor positioning technology in our country: GPS and Beidou, but there are not many practical technologies that can be used in indoor positioning. With the development of Internet of things technology, the demand for accurate indoor positioning has been put forward in many different fields, including the navigation of shopping malls, the tracking of items, the positioning of students in schools, and so on. Under this demand, outdoor positioning technology can not provide enough accurate positioning data, and indoor positioning technology must be used to complete the positioning. The general cost of professional indoor positioning system is high, so it is difficult to control the application cost in the case of large indoor layout. In order to solve the above contradictions, the research on low-cost indoor positioning technology has been favored by many researchers in recent years. This paper relies on Changchun Science and Technology Planning Project "Research on accurate location and dredging system of trapped people in High-rise Building Rescue" and Changchun Science and Technology Plan Project "key Technology of Intelligent Building Information Integration based on Internet of things" and Application platform construction, An indoor positioning system based on inertial system and ZigBee positioning system is designed and implemented. On the basis of ZigBee positioning technology, in order to improve the positioning accuracy of ZigBee positioning, the inertial system is increased. By integrating the data of inertial system and the data of ZigBee positioning system, more accurate positioning results are obtained. High positioning accuracy is obtained under the condition of low cost arrangement. After testing, the indoor positioning system designed in this paper can greatly improve the poor positioning accuracy of a single ZigBee indoor positioning system. Through Kalman filter combined with inertial data measured by inertial system and indoor positioning data based on RSSI, the accuracy of the original indoor positioning system based on ZigBee is improved from about 2 meters to between 50 centimeters. It greatly improves the positioning effect and has certain application value and research value.
【學(xué)位授予單位】:吉林建筑大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2017
【分類號(hào)】:TN92
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本文編號(hào):2482057
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