【摘要】：大壩一旦出現安全隱患，會對人民的生命財產安全帶來威脅。如果發(fā)生事故，則會帶來不可挽回的巨大災害及損失。因此對大壩采取安全監(jiān)測措施極為重要。隨著大壩安全監(jiān)測不斷向自動化監(jiān)測方向發(fā)展，對安全監(jiān)測自動化測量儀的需求就顯得尤為突出。 本文基于激光掃描原理，設計了一種自動測量引張線儀，對大壩安全監(jiān)測中的一項重要的監(jiān)測指標，即水平位移進行自動化監(jiān)測。針對常用的幾種引張線儀，從工作原理及特性進行全方位比較，提出了引張線儀的一種新的實現方法。 以激光二極管發(fā)射的激光作為光源，以光電二極管作為光信號接收器接收位置信息，并進行光電轉換及二值化處理，以STM32F107為主控制器，進行數據采集計算，得到水平位移數據，并自動保存測量結果于控制器片內FLASH中。 基于Cortex-M3內核的STM32F107控制器，移植了μC/OS-Ⅱ嵌入式操作系統(tǒng)，采用μC/GUI多任務圖形用戶接口，通過TFTLCD觸摸顯示屏進行人機交互操作，實現實時時間設置及顯示，機器號廊道號設置及顯示，手動測量及自動測量任務，USB數據下載任務，，以及通過RS485通訊接口與上位機通訊等各項任務的實現與任務調度。 根據大壩安全監(jiān)測的需求分析，提出了引張線儀的總體方案，詳細闡述了基于激光掃描原理的引張線儀的實現原理，給出了硬件設計與軟件實現，進行了誤差及穩(wěn)定性實驗，符合行業(yè)標準，實現了體積小、自動化、成本低的目的。
[Abstract]:Once the dam has hidden danger, it will threaten the safety of people's life and property. If an accident occurs, it will bring irreparable huge disasters and losses. Therefore, it is very important to take safety monitoring measures for dams. With the continuous development of dam safety monitoring towards automatic monitoring, the demand for automatic safety monitoring instrument is particularly prominent. Based on the principle of laser scanning, this paper designs an automatic measuring and drawing line instrument, which can automatically monitor the horizontal displacement, which is an important monitoring index in dam safety monitoring. In this paper, a new realization method of tensioning wire instrument is put forward by comparing the working principle and characteristic of several kinds of tensioning wire instruments in common use. The laser emitted by the laser diode is used as the light source, the photodiode as the light signal receiver to receive the position information, and the photoelectric conversion and binary processing are carried out. The data are collected and calculated with STM32F107 as the main controller, and the horizontal displacement data are obtained. And automatically save the measurement results in the controller chip FLASH. The 渭 C / OS- 鈪

本文編號：2301718