基于石英传感器的动态称重数据处理算法研究

通过对以石英晶体传感器为称重单元的动态称重系统称重信号中干扰信号的分析,得出其称重信号中存在大量干扰信号,包括高频噪声和低频噪声,此外车辆行驶时自身振动、轴型、行驶速度以及加速度都会影响动态称重精度.针对以上问题,提出先利用小波变换算法对称重数据进行滤波预处理,然后再经过EEMD算法以及信号重构算法进一步处理.将以上信号处理算法通过仿真以及运用于现场,能够使称重数据误差控制在2%以内,达到了良好的称重效果.

Research on dynamic weighing data processing algorithm based on Quartz Sensor

Through the analysis of interference signal in quartz crystal sensor weighing system for weighing unit weighing signal,interference signal that a large number of the weighing signal,including high frequency noise and low frequency noise,in addition when the vehicle vibration,its axis type,speed and acceleration will affect the dynamic weighing accuracy.In view of the above problems,the paper puts forward that the wavelet transform algorithm is used to preprocess the weighing data,and then the EEMD algorithm and the signal reconstruction algorithm are used to deal with the problem.The above signal processing algorithm is simulated and applied to the field,so that the error control of the weighing data is less than 2%,and the result is good.