本文選題：GPS + 基線解算��； 參考：《蘭州交通大學》2013年碩士論文

【摘要】：高精度形變監(jiān)測具有兩個方面的意義：一是在實際應用上,可以及時發(fā)現工程建筑和地質結構上可能出現的隱患和變動問題,及早的做出應對措施；二是在科學上,對一些理論的可行性驗證,進一步深入理解形變的基礎原理,并為工程上建立準確的預測機制提供可靠地理論依據和方法�；贕PS的衛(wèi)星定位技術已經廣泛應用于各種生產領域,且具有精度高、連續(xù)性好、全天候、實時性的特點,還可以在環(huán)境惡劣有人值守比較困難的情況下,進行無人監(jiān)測,因此而成為當今主要的監(jiān)測手段。 本文即是基于GPS衛(wèi)星定位技術,設計并實現一種高精度的形變監(jiān)測系統(tǒng)。文章首先對系統(tǒng)的理論依據做了介紹和仿真,主要是在Gamit基線解算的基礎上,同時采用迭代卡爾曼濾波對接收的數據和基線解算值進行不斷地預測,并與實際數據相比較,達到最優(yōu)的估計值。從而在相對定位的基線解算過程中得到高精度的監(jiān)測點的形變量,達到對監(jiān)測點的形變量做出動態(tài)預警監(jiān)測。 其次,在系統(tǒng)功能上主要是針對流動站和基準站的設計。在流動站上,采用EM9170工控開發(fā)板與GPS模塊,負責接收監(jiān)測點的GPS數據,使用編程語言自動獲取解算需要的數據和衛(wèi)星信息,并將接收的數據通過無線網橋發(fā)送給基準站；基準站上則由ENC5146和GPS模塊組成,基準站上除采集GPS衛(wèi)星數據外,同時它也要負責將流動站傳輸來的數據和本身采集的數據組合進行基線解算,這是系統(tǒng)的核心功能,之后它會將解算數據等相關信息通過公網GPRS傳送到遠端的監(jiān)測服務器上。流動站和基準站的功能通過VS2008進行編寫,此外并對相應的數據庫進行設計。 最后本文根據系統(tǒng)在蘭州窯街電力鐵塔項目的實際應用,使用所得數據進行分析,判斷誤差達到高精度毫米級要求,同時驗證了本系統(tǒng)在實際應用中的可靠性和穩(wěn)定性,具有廣泛的實際應用前景。 本論文的創(chuàng)新點在于以開源的Gamit解算為原型,通過Gamit解算模型的改進和迭代卡爾曼濾波的綜合運用設計解算算法,然后以此理論算法為依據設計高精度形變監(jiān)測系統(tǒng),并在實際中得到應用。
[Abstract]:The high precision deformation monitoring has two aspects significance: first, in the practical application, may discover the hidden danger and the change question which the engineering building and the geological structure may appear in time, makes the countermeasure as soon as possible; second, is in the scientific aspect, To verify the feasibility of some theories, we can further understand the basic principles of deformation and provide a reliable theoretical basis and method for the establishment of an accurate prediction mechanism in engineering. Satellite positioning technology based on GPS has been widely used in various fields of production, and has the characteristics of high precision, good continuity, all-weather, real-time. As a result, it has become the main monitoring means. Based on GPS satellite positioning technology, a high precision deformation monitoring system is designed and implemented in this paper. This paper first introduces and simulates the theoretical basis of the system, mainly on the basis of the Gamit baseline solution, at the same time, using iterative Kalman filter to continuously predict the received data and the baseline solution, and compare with the actual data. An optimal estimate is reached. Thus, the shape variables of the monitoring points with high accuracy are obtained during the calculation of the relative positioning baselines, and the dynamic early warning monitoring of the shape variables of the monitoring points is achieved. Secondly, the system function is mainly aimed at the design of mobile station and reference station. In the mobile station, EM9170 industrial control development board and GPS module are used to receive the GPS data from the monitoring point, and the data and satellite information are automatically obtained by programming language, and the received data are sent to the reference station through the wireless network bridge. The datum station is composed of ENC5146 and GPS modules. In addition to collecting GPS satellite data, it is also responsible for the baseline calculation of the data transmitted from the mobile station and the data collected by itself, which is the core function of the system. It will then calculate the data and other related information via the public network GPRS to the remote monitoring server. The functions of mobile station and reference station are written by VS2008, and the corresponding database is designed. Finally, according to the practical application of the system in Lanzhou Yaojie electric power tower project, using the obtained data to analyze, the judgment error reaches the requirement of high precision millimeter, and the reliability and stability of the system in the practical application are verified at the same time. It has a wide range of practical application prospects. The innovation of this paper is that the open-source Gamit solution is used as the prototype, the improved Gamit solution model and the integrated application of iterative Kalman filter are used to design the algorithm, and then the high-precision deformation monitoring system is designed based on the theoretical algorithm. And it is applied in practice.
【學位授予單位】：蘭州交通大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：TP274;P228.4

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本文編號：1876648