【摘要】：基于位置的服務(wù)(LBS),伴隨著移動(dòng)互聯(lián)網(wǎng)而產(chǎn)生。自誕生以來,迅速深入人們生活的方方面面。簽到、地圖、周邊生活服務(wù)的搜索等應(yīng)用層出不窮,而這一切的基礎(chǔ)就是精準(zhǔn)定位技術(shù)。目前,室內(nèi)定位研究最多的就是基于射頻或者傳感器的定位,室外定位主要以GPS定位為主。但是,這些定位技術(shù)都是局限于一個(gè)特定環(huán)境或者范圍,如何在綜合多源定位信息的基礎(chǔ)上,尋求一種較普適性的定位技術(shù),是一個(gè)非常值得研究的熱門課題。 本文在當(dāng)前室內(nèi)外定位的基礎(chǔ)上,提出了基于多源信息融合的移動(dòng)定位技術(shù)。即通過卡爾曼濾波技術(shù),將GPS定位信息、慣性傳感器定位信息、基站定位信息和道路信息進(jìn)行融合,融合的條件是實(shí)時(shí)檢測GPS信號是否發(fā)生漂移和時(shí)間戳原則。該優(yōu)化算法,首先,一定程度上緩解了慣性傳感器定位的累積誤差,使得慣性傳感器更好的發(fā)揮其自主導(dǎo)航能力；其次,能有效解決GPS漂移,在沒有網(wǎng)絡(luò)或者GPS信號弱的環(huán)境(如深山,隧道、樓區(qū)等)下,也能做到一定程度的定位；最后,初步實(shí)現(xiàn)了室內(nèi)、室外的無縫切換,也降低了GPS長時(shí)間定位耗能問題。本文提出的移動(dòng)定位技術(shù),通過了實(shí)驗(yàn)測試,達(dá)到了上述目標(biāo),說明本文的設(shè)計(jì)思想和理念是可行的。
[Abstract]:The location-based service (LBS), comes along with the mobile internet. Since its birth, it has rapidly penetrated into all aspects of people's lives. Applications such as check-in, maps, and search for peripheral life services are endless, and all are based on precision positioning technology. At present, indoor positioning research is based on RF or sensor positioning, outdoor positioning is mainly based on GPS. However, these localization techniques are confined to a specific environment or scope. How to find a more general location technology based on the synthesis of multi-source location information is a hot topic worth studying. In this paper, based on the current indoor and outdoor positioning, a mobile location technology based on multi-source information fusion is proposed. That is, through Kalman filtering technology, GPS location information, inertial sensor location information, base station location information and road information are fused. The condition of fusion is real-time detection of GPS signal drift and timestamp principle. The optimization algorithm, firstly, alleviates the cumulative error of inertial sensor positioning to a certain extent, and makes inertial sensor better play its autonomous navigation ability; Secondly, can effectively solve the GPS drift, in the absence of network or GPS signal weak environment (such as mountains, tunnels, buildings, etc.), can also achieve a certain degree of positioning; Finally, the seamless switching between indoor and outdoor is realized preliminarily, and the problem of energy consumption for long time positioning of GPS is also reduced. The mobile positioning technology proposed in this paper has passed the experimental test and achieved the above goal, which shows that the design idea and idea of this paper are feasible.
【學(xué)位授予單位】：北京郵電大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TN929.5;P228.4

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本文編號：2359334