本文關(guān)鍵詞：基于Android的無線GPS定位系統(tǒng)設(shè)計　出處：《東南大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

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【摘要】：在我國城鎮(zhèn)化、工業(yè)化高速發(fā)展的階段,土地利用方式全面調(diào)整,土地使用權(quán)限變更頻繁。為了及時準(zhǔn)確掌握土地利用情況,需要一種高效的土地實地核查技術(shù)作為這一進(jìn)程的重要保障。隨著GPS技術(shù)在大地測繪領(lǐng)域的推廣,越來越多的基于Windows Mobile系統(tǒng)的GPS手持機(jī)被應(yīng)用于大地測繪、土地核查等工作中,但是這些GPS手持機(jī)在系統(tǒng)功能、定位精度等方面急需改善以滿足日益改變的需要。在智能手機(jī)迅速普及的4G時代,Android以其更為優(yōu)越的系統(tǒng)功能和性能,迅速成為最主流的移動操作系統(tǒng)平臺之一。因此,設(shè)計一款基于Android平臺的GPS定位系統(tǒng)具有很大的現(xiàn)實意義。本文根據(jù)土地核查領(lǐng)域?qū)PS的應(yīng)用需求設(shè)計了一種基于Android的無線GPS定位系統(tǒng)。首先闡述了基于Android系統(tǒng)的GPS驅(qū)動移植,主要完成了Android系統(tǒng)下GPS的JNI、HAL和Linux內(nèi)核驅(qū)動的移植；然后完成了解析GPS定位數(shù)據(jù)的程序設(shè)計,實現(xiàn)了單點定位功能；其次將基于VRS技術(shù)的CORS系統(tǒng)與RTK技術(shù)結(jié)合,根據(jù)Ntrip協(xié)議實現(xiàn)了GPS實時差分定位功能；最后本文完成靜態(tài)已知點的檢測和基線相對長度檢測來對單點定位和差分定位的精度進(jìn)行測試,通過對測試數(shù)據(jù)的處理與分析,表明本系統(tǒng)單點定位的誤差峰值為+1.434m,精度達(dá)到米級(1m-10m), CORS網(wǎng)絡(luò)差分定位在經(jīng)度方向上的誤差跳躍不超過9cm,緯度方向上的誤差跳躍不超過6cm,精度達(dá)到厘米級(1cm-10cm),達(dá)到了預(yù)定的功能要求和性能指標(biāo)。本文設(shè)計的基于Android的無線GPS定位系統(tǒng)能夠應(yīng)用于土地地理信息實地核查領(lǐng)域,可以大大提高土地核查工作中地理信息數(shù)據(jù)采集工作的效率,并且能夠保證采集到的地理數(shù)據(jù)的精度,從而能夠為土地監(jiān)管提供強(qiáng)有力的數(shù)據(jù)支撐,有助于提高土地資源利用率,具有一定的工程應(yīng)用價值。
[Abstract]:In the stage of rapid development of urbanization and industrialization in China, the land use mode is adjusted comprehensively and the land use authority is changed frequently. In order to grasp the land use situation accurately and timely. An efficient land field verification technology is needed as an important guarantee of this process. With the popularization of GPS technology in the field of geodetic mapping. More and more GPS handsets based on Windows Mobile system are used in geodetic mapping, land verification and so on, but these GPS handsets function in the system. Positioning accuracy and other aspects need to be improved to meet the ever-changing needs. In the 4G era of the rapid spread of smartphones Android has more superior system functions and performance. Rapidly becoming one of the most popular mobile operating system platforms. It is of great practical significance to design a GPS positioning system based on Android platform. According to the application requirements of GPS in the field of land verification, a wireless G based on Android is designed in this paper. PS positioning system. Firstly, the GPS driver transplantation based on Android system is introduced. The transplanting of JNIHAL and Linux kernel driver of GPS in Android system is completed. Then the program design of analyzing GPS positioning data is completed, and the function of single point positioning is realized. Secondly, the CORS system based on VRS technology is combined with RTK technology, and the real-time differential location function of GPS is realized according to Ntrip protocol. Finally, this paper completes the static known point detection and baseline relative length detection to test the accuracy of single point positioning and differential positioning, through the processing and analysis of test data. The results show that the error peak value of single point positioning is 1.434m, the precision is 1m-10mg, and the error jump of CORS network differential positioning in longitude direction is not more than 9cm. The error jump in the latitude direction does not exceed 6 cm, and the precision reaches 1 cm ~ 10 cm in centimeter order). The wireless GPS positioning system based on Android can be applied to the field verification of land geographic information. It can greatly improve the efficiency of geographic information data collection in the land verification work, and can ensure the accuracy of the collected geographic data, thus providing a strong data support for land supervision. It is helpful to improve the utilization rate of land resources and has certain engineering application value.
【學(xué)位授予單位】：東南大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：P228.4;TP316

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本文編號：1380405