摘要
古塔倾斜变形检测存在着成本较高、全面性不足和长期监测难度较大等问题,导致了古塔加固保护缺乏立项依据,古塔倾斜监测系统的开发与模型验证是促进古塔加固保护立项的基础和依据。文章以宝严寺塔为主要研究对象,基于数字图像识别技术,围绕古塔倾斜监测的关键问题,推导了倾斜检测的数学计算模型,编制了塔轮廓数字图像识别程序,开发了一套古塔监测软硬件系统,并进行了模型试验。结果表明:古塔倾斜监测系统对于塔类倾斜的检测准确度>99.5%,与传统全站仪测试方法的检测结果差值为0.14°;技术经济评价显示所提出的系统能够减少成本>85%,且随着监测周期和频率的提高,成本低的优势将更加明显。
At present,there are big problems of high costs of detection,lack of integrity and difficulty of long-term monitoring in the detection of tilting deformation of the ancient tower tilt monitoring system development and model verification for ancient pagoda which leads to the lack of the ancient tower protection to build the basis of the project. In terms of this problem,according to the digital image recognition technology,around the key problem of Pagoda tilt monitoring,this paper deduces the mathematical model of the tilt detection,compiles the digital image recognition program of the contour of the tower,develops a set of hardware and software system to detect the ancient tower,and carries on the model test. Based on this,the field tilt detection of the Bao-Yan Temple Tower has been measured. The results show that the developed system technology is feasible and can form a set of information systems for long-term monitoring of the ancient pagoda. In addition,the model test results show that the detection accuracy of the tower tilt exceeds 99. 5%. By contrast,the test results of the traditional total station test method differ by 0. 14 °. By comparing the technical and economic evaluation of the both,it shows that the proposed system can reduce the cost by more than 85%. With the increase of monitoring period and frequency,this advantage will become more obvious.
出处
《山东建筑大学学报》
2017年第6期595-600,共6页
Journal of Shandong Jianzhu University
基金
国家自然科学基金项目(51579226)
关键词
古塔
监测系统
数字图像
倾斜
ancient pagoda
monitoring system
digital image
tilt
