摘要
针对传统激光信号监控系统的容易受到外界噪声干扰,监控效果较差等问题,设计了激光传感信号远程监控系统。采用多通道采样方法对激光传感信号进行采集,以小波降噪技术对采集到的激光信号进行滤波处理,将处理后的激光传感信号进行集成处理,采用向量量化技术实现激光传感信号的特征提取和离散化信息识别,提取激光信号的波长直方图,根据直方图的差异性进行监控异常报警,报警模块采用声光报警模式。采用DSP高速信号处理芯片作为核心处理器,完成激光传感信号的远程监控系统硬件设计。通过验证分析,所设计激光传感信号远程监控系统监控的效果好,传输延迟较低,输出信噪比较高,具有较好的监控质量。
Aiming at the problems of traditional laser signal monitoring system which is easily interfered by external noise and poor monitoring effect,a remote monitoring system for laser sensing signals is designed.The multichan-nel sampling method is used to collect laser sensing signals,and the collected laser signals are filtered by wavelet denoising technology,the processed laser sensing signals are integrated,and the vector sensing technology is used to realize the feature extraction and discretization information recognition of laser sensing signals.The wavelength histogram of laser signal is extracted,the abnormal alarm is monitored according to the histogram difference,and the sound and light alarm mode is adopted by alarm module.The DSP high-speed signal processing chip is used as core processor to complete hardware design of the remote sensing system of laser sensing signal.Through verification analysis,the designed remote monitoring system of laser sensing signal has good monitoring effect,low transmission delay,high output signal-to-noise ratio and good monitoring quality.
作者
戎成
闵勇
谢之鑫
RONG Cheng;MIN Yong;XIE Zhixin(Zhejiang Scientific Research Institute of Transport,Hangzhou 311305,China;Zhejiang University of Technology,Hangzhou 310023,China;Xinjiang Vocational&Technical College of Communications,Urumchi 831401,China)
出处
《激光杂志》
北大核心
2020年第6期165-170,共6页
Laser Journal
基金
浙江交通运输厅科研计划项目(No.2018047)。
关键词
向量量化技术
激光传感信号
远程监控系统
滤波处理
离散化信息识别
vector quantification technique
laser sensing signal
remote monitoring system
filter processing
discrete information recognition
