摘要
针对大量的施工接缝平整度检测信号,如何高效地进行信号处理和分析,是当前的研究难点。为提高沥青混合料路面的安全性,提出了一种施工接缝平整度检测方法。以最小二乘积算法为检测关键算法,考虑到路面施工检测属于户外工作,检测点数据可能会受到环境温度、噪声或其它因素影响,建立巴特沃斯滤波器,取5个邻近点作为测试点并组成序列,对序列中各个点均加权,计算加权后每个点的因子变化,查找峰值和低谷值利用滑动平均化实行平滑处理。利用接缝平整度状态变化与时间和空间之间的线性关联关系,采用最小二乘积算法构建平整度随时间和空间变化的方程组,求得唯一解作为判定依据,设定一个接缝平整度的标准值,计算初步检测待定集合中与上述数值存在关联关系的数据,通过对比实现有效检测。仿真结果表明,所提方法的信号处理效果较好,检测精准度较高,不易受环境影响,适应性较强。
How to efficiently process and analyze a large number of detection signals of construction joints is currently a research difficulty.In order to improve the safety of asphalt mixture pavement,this article presented a method of detecting the flatness of construction joints.First of all,we used the least squares algorithm as the key detection algorithm.Because road construction detection belongs to outdoor work and the data of detection points may be affected by environmental temperature,noise,or other factors,we constructed a Butterworth filter.Moreover,we selected five adjacent points as test points,and then created a sequence including these points.Furthermore,each point in the sequence was weighted,and then we calculated the factor changes of each point.Meanwhile,we searched for peak and valley values and smoothed them by using moving average.In addition,we used the changes in joint flatness status and the linear correlation between time and space,as well as the least squares algorithm to construct a system of equations for the variation of flatness over time and space,thus calculating the unique solution as the judgment basis.Finally,we set a standard value for joint flatness,and calculated the data related to the value in the preliminary test set.Thus,effective detection was achieved through comparison.Simulation results show that the proposed method has good signal processing performance and high detection accuracy.And the method is not easily affected by the environment and has strong adaptability.
作者
鞠达
黄子珍
JU Da;HUANG Zi-zhen(Chengxian College,Southeast University,Nanjing Jiangsu 210088,China;Research Institute,Southeast University,Jiangsu Nanjing Jiangsu 211189,China)
出处
《计算机仿真》
2024年第8期252-255,267,共5页
Computer Simulation
基金
2021年东南大学成贤学院青年教师科研发展基金(z0032)。
关键词
沥青混合料路面
施工接缝
平整度检测
最小二乘积算法
巴特沃斯滤波器
Asphalt mixture pavement
Construction joints
Detection of road surface roughness
Least squares algorithm
Butterworth filter
