基于TDC-GP22的室內(nèi)定位系統(tǒng)設(shè)計(jì)
[Abstract]:Indoor positioning technology has high practical value and is a promising research topic. In addition to the problem of balance among basic cost, positioning accuracy and universality, the existing indoor positioning techniques and schemes are difficult to achieve satisfactory positioning accuracy and reliability. While perfecting the existing positioning technology, exploring new positioning scheme is also a new way for us to study. Aiming at the problem of indoor positioning, this paper presents a design scheme of TDOA (Time Difference of Arrival) indoor positioning system without clock synchronization. The system is based on warehousing and handling robot, with the help of radio communication circuit, A high precision time-digital converter (TDC-GP22) is used to measure the propagation delay difference between the radio transmitter and the auxiliary node of the robot. The hyperbolic positioning method is used to estimate the relative coordinate position of the target. This paper firstly introduces the background and present situation of indoor positioning technology, compares the advantages and disadvantages of existing indoor positioning techniques and localization algorithms, and expounds the research process of time measurement methods and methods in principle. The results show that the existing digital time measurement methods and measurement accuracy are sufficient for indoor positioning. Secondly, the design scheme of indoor positioning system based on TDC-GP22 is put forward, mainly from two aspects of hardware layout and software system design. The hardware is explained from the aspects of chip selection and circuit design, and the software mainly explains the bottom driver of each module and the upper application design. The working mode and software driver design of time-digital converter (TDC-GP22) are introduced in detail. Then, the TDOA moveout algorithm is discussed, and the initial target location is estimated by the Chan algorithm, which combines the Chan algorithm and Taylor expansion algorithm. The obtained initial solution is then calculated iteratively by Taylor expansion method to obtain more accurate positioning coordinates. Finally, the system is debugged, the basic function of the system is tested, and the one-dimensional ranging experiment and the two-dimensional positioning (LOS) experiment are measured respectively. First, closed circuit experiments are carried out in two-dimensional plane experiments, and then open circuit experiments are carried out in simple and complex environments. The results are compared by Chan algorithm, Taylor expansion method and the algorithm combined with the two algorithms. The experimental results show that the error of the indoor positioning system can reach less than 1m when the positioning results are ideal under the LOS two-dimensional plane of simple environment and the combination of Chan algorithm and Taylor expansion method.
【學(xué)位授予單位】:南京理工大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TN92
【相似文獻(xiàn)】
相關(guān)期刊論文 前10條
1 趙軍;李鴻斌;王智;;無線網(wǎng)絡(luò)室內(nèi)定位系統(tǒng)研究[J];信息與控制;2008年04期
2 梁韻基;周興社;於志文;倪紅波;;普適環(huán)境室內(nèi)定位系統(tǒng)研究[J];計(jì)算機(jī)科學(xué);2010年03期
3 汪苑;林錦國;;幾種常用室內(nèi)定位技術(shù)的探討[J];中國儀器儀表;2011年02期
4 王麗英;;導(dǎo)航發(fā)展的新熱點(diǎn)——室內(nèi)定位[J];今日電子;2011年12期
5 ;衛(wèi)星信號易被干擾 室內(nèi)定位技術(shù)解析[J];金卡工程;2012年07期
6 李振;姚以鵬;;大型公共場館智能室內(nèi)定位導(dǎo)游系統(tǒng)的技術(shù)研究[J];廣東科技;2013年12期
7 袁飛;;淺談室內(nèi)定位與機(jī)場旅客個(gè)性化服務(wù)[J];中國科技信息;2014年08期
8 張玉梅;康曉霞;;救援隊(duì)員室內(nèi)定位技術(shù)分析[J];消防科學(xué)與技術(shù);2012年06期
9 楊華;劉軍發(fā);陳益強(qiáng);;一種基于多終端動(dòng)態(tài)協(xié)同的室內(nèi)定位方法[J];計(jì)算機(jī)應(yīng)用研究;2012年07期
10 胡天琨;葉建芳;;基于手持設(shè)備的室內(nèi)定位系統(tǒng)設(shè)計(jì)與實(shí)現(xiàn)[J];微型機(jī)與應(yīng)用;2012年13期
相關(guān)會議論文 前8條
1 張立立;鐘耳順;;無線室內(nèi)定位技術(shù)[A];中國地理信息系統(tǒng)協(xié)會第八屆年會論文集[C];2004年
2 郭明濤;李文元;龔福春;;室內(nèi)定位方法分析[A];2007北京地區(qū)高校研究生學(xué)術(shù)交流會通信與信息技術(shù)會議論文集(下冊)[C];2008年
3 郭旭斌;葉長城;王憶文;李輝;;基于無線傳感器網(wǎng)絡(luò)的室內(nèi)定位系統(tǒng)[A];第十五屆計(jì)算機(jī)工程與工藝年會暨第一屆微處理器技術(shù)論壇論文集(A輯)[C];2011年
4 房秉毅;李熹;;超寬帶室內(nèi)定位系統(tǒng)研究[A];2005年全國超寬帶無線通信技術(shù)學(xué)術(shù)會議論文集[C];2005年
5 高雪晨;蔣泰;曹林峰;;基于RFID的室內(nèi)定位系統(tǒng)設(shè)計(jì)[A];廣西計(jì)算機(jī)學(xué)會2012年學(xué)術(shù)年會論文集[C];2012年
6 徐勁松;盧曉春;邊玉敬;;基于UWB的室內(nèi)定位系統(tǒng)設(shè)計(jì)與仿真[A];2009全國時(shí)間頻率學(xué)術(shù)會議論文集[C];2009年
7 雷地球;羅海勇;劉曉明;;一種基于WiFi的室內(nèi)定位系統(tǒng)設(shè)計(jì)與實(shí)現(xiàn)[A];第六屆和諧人機(jī)環(huán)境聯(lián)合學(xué)術(shù)會議(HHME2010)、第19屆全國多媒體學(xué)術(shù)會議(NCMT2010)、第6屆全國人機(jī)交互學(xué)術(shù)會議(CHCI2010)、第5屆全國普適計(jì)算學(xué)術(shù)會議(PCC2010)論文集[C];2010年
8 胡斌;宋娜娜;;基于航位推測技術(shù)的消防人員室內(nèi)定位系統(tǒng)研究[A];2014中國消防協(xié)會科學(xué)技術(shù)年會論文集[C];2014年
相關(guān)重要報(bào)紙文章 前10條
1 本報(bào)記者 馬靜t,
本文編號:2169720
本文鏈接:http://sikaile.net/kejilunwen/xinxigongchenglunwen/2169720.html