基于滑动滤波的消防水系统状态监测方法

A state monitoring method of fire water supply system based on sliding filter

针对城市消防给水系统状态的监测问题,分析水压数据波动原因,比较常用数字滤波方法,选用滑动滤波法处理水压数据。介绍滑动滤波器用于水压传感器的作用原理和实现方法。理论分析了滤波器窗口宽度、门限值以及采样频率等因素对水压状态转移判断的影响,通过原型系统进行了算法验证。结果表明,该方法可及时准确地获取消防给水系统中"欠压"、"正常"和"超压"等状态信息,为消防救援作战指挥提供可靠的信息保障。

Against the problem of urban fire water supply system state monitoring, the reasons of water pressure data wave were an- alyzed, and common digital filtering methods were compared, to choose sliding filtering method to handle the data. The principleand implementation of sliding filter for hydraulic pressure sensor were introduced.The influence of filter window width, threshold and sampling frequency on the judgment of hydraulic pressure state transfer were theoretically analyzed.The algorithm was verified by the prototype system. The results showed that the method can ob- tain the state information of ＂under-pressure＂, ＂normal＂ and ＂over-pressure＂ in the fire water supply system timely and accu- rately,which provides a reliable information guarantee for fire res cue operation command.