摘要
分析了煤矿井下传感器的频率信号在传输过程中受干扰的主要原因,重点阐述了井下监控分站频率信号采集电路的抗干扰设计方案。该方案在硬件上采用动态阈值和静态阈值相结合的方法去除干扰信号,在软件上采用滑动滤波算法筛选异常信号。实际应用结果验证了该方案的可行性及有效性。
The paper analyzed main causes of interference in frequency signal transmission of underground sensors of coal mine, and focused on anti-interference design scheme of frequency signal acquisition circuit of underground monitoring substation. The scheme combines dynamic threshold and static threshold to remove interference signal in hardware, and uses sliding filtering algorithm to filtrate abnormal signal in software. The practical application results verify feasibility and effectiveness of the design Scheme.
出处
《工矿自动化》
北大核心
2015年第4期99-101,共3页
Journal Of Mine Automation
基金
工信部2014年物联网发展专项资金项目(114001114
114001214)
中煤科工集团重庆研究院有限公司一般项目(CQ1516)
关键词
监控分站
信号采集
电磁干扰
滑动滤波
信号耦合
monitoring substation
signal acquisition
electromagnetic interference
s|iding filter
signal coupling