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基于北斗的相對位移測量方法在滑坡監測中的設計與實(shí)現
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延安大學(xué)物理與電子信息學(xué)院

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國家自然科學(xué)基金(62141107);研究生教育創(chuàng )新計劃(YCX2024089)


Design and Implementation of Beidou-based Relative Displacement Measurement Method in Landslide Monitoring
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    摘要:

    滑坡的相對位移測量是滑坡監測預警的重中之重,針對測量中實(shí)時(shí)連續監測難、測量精度不穩定等問(wèn)題,采用了一種基于北斗導航定位數據的相對位移測量方法,應用卡爾曼濾波平滑測量過(guò)程中的噪聲保證數據穩定連續,使用導航數據處理軟件RTKLIB中的RTKNAVI工具對定位數據進(jìn)行RTK處理提高定位精度,解算出滑坡相對位移量;并在所介紹測量方法的依據下設計了測量設備硬件平臺,對設備進(jìn)行了模擬滑坡測量試驗,結果表明:依據此方法優(yōu)化設計的測量設備定位精度在水平方向精度為5mm,垂直方向精度為1.5cm,相對位移測量精度在4mm內,滑坡傾角測量精度達到0.01°,數據平均有效率為96.97%,測量過(guò)程穩定連續,能夠滿(mǎn)足滑坡監測中的相對位移測量需要,且該方法可以用來(lái)監測滑坡的單次和累積位移量,將位移量與角度變化量相結合可以很好反映滑坡前兆與趨勢,為滑坡監測預警提供可靠判據。

    Abstract:

    Relative seismic measurement of landslides is the top priority in landslide monitoring and early warning. In order to solve the problems of difficulty in real-time continuous monitoring and unstable measurement accuracy, a relative seismic measurement method based on Beidou navigation and positioning data is adopted, and Kalman-assisted smoothing is applied. The noise during the measurement process ensures that the data is stable and continuous. The RTKNAVI tool in the navigation data processing software RTKLIB is used to perform RTK processing on the positioning data to improve the positioning accuracy and calculate the relative displacement of the landslide. The measurement method is designed based on the introduction of the measurement method. Equipment hardware platform, a simulated landslide measurement test was conducted on the equipment. The results show that the positioning accuracy of the measurement equipment optimized using this method is 5mm in the horizontal direction, 1.5cm in the vertical direction, the relative bearing measurement accuracy is within 4mm, and the landslide inclination angle measurement The accuracy reaches 0.01°, the average effective data meets 96.97%, and the measurement process is stable and continuous, which can meet the needs of relative seismic measurement in landslide monitoring. This method can be used to monitor the single and cumulative earthquake volume of landslides, and combine the seismic volume with the angle change. The combination can well reflect the precursors and trends of landslides and provide reliable judgment basis for landslide monitoring and early warning.

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孫勝浩,曹新亮,吳佳輝.基于北斗的相對位移測量方法在滑坡監測中的設計與實(shí)現計算機測量與控制[J].,2024,32(12):57-66.

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  • 收稿日期:2024-06-23
  • 最后修改日期:2024-07-31
  • 錄用日期:2024-08-02
  • 在線(xiàn)發(fā)布日期: 2024-12-24
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