提升机位置跟踪系统可用工作在红外波段的激光,测量″调制光波″往返于被测距离上相位差的方法来测定距离.由于信号中含有噪声,因此通过小波变换来实现提升机测距信号的信号处理,利用信号和噪声在不同尺度的小波变换下呈现特性相反,采用阈值方法消除噪声,重构真实信号.该系统能极其准确地显示提升机的实际位置,提高了距离测量的精度.通过MATLAB软件进行仿真,实现了激光位置跟踪信号的数据处理,以及对提升机位置和速度的数字化控制.

The Tracking system can measure the traveling distance with the laser working in infra-red wave band by measuring the phase difference with modulated light wave shuttling the measured distance. Since noise contained signal process of the hoist's distance measuring is realized by wavelet transform. Based on different properties of noise and the signal working in different scale, noise can be eliminated by consulting the threshold value, after that real signal will be reconfigured. This system can improve the precision of distance measure by showing the hoist's real location exactly. Date process of laser location-tracking signal can be realized by the simulating of MATLAB software. All in ail, this system can realize digital control of the riser's location and speed.