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基于GPS的輸油管道異常位移監(jiān)測算法的研究

發(fā)布時間:2018-04-20 02:15

  本文選題:輸油管道 + GPS ; 參考:《中國石油大學(華東)》2013年碩士論文


【摘要】:輸油管道是石油、天然氣的主要運輸渠道,承擔著能源運輸的重大責任。管道遍布全國各地,,其安全形勢將是管道公司、各級政府部門、社會各階層關注的焦點。然而由于地質災害或是人為破壞,輸油管道出現沉降、移位甚至斷裂的情況時有發(fā)生,對輸油管道的異常位移監(jiān)測就顯得非常必要。 GPS作為一種全新的現代空間定位技術,已經在許多的測量領域取代傳統(tǒng)的光學和電子測量方法,變形監(jiān)測領域也不例外。GPS變形監(jiān)測的實現可以減輕外業(yè)工作量,大大提高工作效率[1];贕PS的這些優(yōu)點,本文考慮將GPS測量技術應用在輸油管道位移監(jiān)測領域。 本文使用GPS靜態(tài)相對定位的方法定位輸油管道的位置,闡明了靜態(tài)相對定位方法的原理,分析了輸油管道異常位移監(jiān)測中各種誤差對靜態(tài)相對定位的影響。本文還對靜態(tài)相對定位在位移監(jiān)測應用中的關鍵技術進行了研究,給出了一種能夠比較準確探測觀測值整周跳變及粗差的方法,對整周模糊度確定的問題進行了研究,給出了一種能夠快速搜索整周模糊度的方法。本文給出了從觀測數據處理到最終定位輸油管道位置的完整的算法,并編程實現了這些算法。本文使用了IGS觀測站的觀測數據來檢驗定位結果,誤差分析以及與精確坐標的對比都驗證了該算法的準確性和有效性。
[Abstract]:Oil pipeline is the main transportation channel of oil and natural gas, which bears the great responsibility of energy transportation. Pipeline all over the country, its safety situation will be pipeline companies, government departments at all levels, all sectors of society focus. However, due to geological hazards or man-made damage, oil pipeline subsidence, displacement and even fracture occur from time to time, the abnormal displacement monitoring of oil pipeline is very necessary. As a new modern space positioning technology, GPS has replaced the traditional optical and electronic measurement methods in many fields of measurement, and the realization of deformation monitoring in the field of deformation monitoring can reduce the workload of field work. Greatly improve working efficiency [1]. Based on these advantages of GPS, this paper considers the application of GPS measurement technology in the field of oil pipeline displacement monitoring. In this paper, the GPS static relative positioning method is used to locate the oil pipeline, the principle of the static relative positioning method is expounded, and the influence of various errors on the static relative positioning in the abnormal displacement monitoring of the oil pipeline is analyzed. This paper also studies the key technology of static relative positioning in the application of displacement monitoring, gives a method that can accurately detect the whole cycle jump and gross error of observation value, and studies the problem of determining the ambiguity of whole cycle. In this paper, a method for fast searching for integer ambiguity is presented. In this paper, the complete algorithms from the observation data processing to the final location of the oil pipeline are presented, and these algorithms are implemented by programming. In this paper, the accuracy and validity of the algorithm are verified by using the observation data of the IGS station to verify the localization results, error analysis and comparison with the exact coordinates.
【學位授予單位】:中國石油大學(華東)
【學位級別】:碩士
【學位授予年份】:2013
【分類號】:TE973.6;P228.4

【參考文獻】

相關期刊論文 前3條

1 孔巧麗;歐吉坤;柴艷菊;;星載GPS相位非差觀測粗差和周跳的探測與修復[J];大地測量與地球動力學;2005年04期

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