水利水电技术（中英文）2024，Vol.55Issue(7)：125-133,9.DOI:10.13928/j.cnki.wrahe.2024.07.011
基于动态变频和实时过滤技术的泥石流泥位预警方法及应用
A method and application of debris flow and mud level warning based on dynamic frequency conversion and real time filtering technology
摘要
Abstract
[Objective]The existing automated monitoring equipment for mud level is limited by fixed frequency and monitoring errors,making it difficult to meet the real-time and accurate warning needs of debris flow based on mud level changes.Therefore,it is necessary to improve the collection and filtering method of existing monitoring equipment to improve the timely and accurate acquisition of mud level height by mud level monitoring equipment.[Methods]Taking a mudslide ditch in Linzhi City,Tibet as an example,by analyzing the characteristics of common mudslide mud level monitoring data,we propose a mud level monitoring method with dynamic variable frequency monitoring technology for the problem of fixed frequency,and improve the real-time error filtering method based on the least squares method to realize the real-time filtration and timely discrimination of mud level data of mudslides.[Results]The result show that the error fluctuation of mud level monitoring data after using dynamic frequency con-version and real-time filtering processing is significantly reduced,and the acquisition of key data is superior to conventional mud level monitoring equipment in terms of time.[Conclusion]The result indicate that using dynamic frequency conversion technolo-gy can detect mud level changes earlier,and the filtered key data can be basically retained,which has won time for early warning of debris flows.The research result can provide scientific and reliable technical reference for monitoring and warning of mud level in debris flows.关键词
泥石流/泥位监测/动态变频/实时过滤/风险评估/影响因素Key words
debris flow/mud level monitoring/dynamic frequency conversion/real time filtering/risk assessment/influence factor分类
天文与地球科学引用本文复制引用
亓星,方敏,曹汝亮..基于动态变频和实时过滤技术的泥石流泥位预警方法及应用[J].水利水电技术（中英文）,2024,55(7):125-133,9.基金项目
四川省科技厅重点研发项目(21ZDYF2842) （21ZDYF2842）
地质灾害防治与地质环境保护国家重点实验室开放基金(SKLGP2022K008) （SKLGP2022K008）
中国博士后科学基金面上项目(2023MD744136) （2023MD744136）
