Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for judging hydraulic state of water supply network
The invention relates to a method for judging the hydraulic state of a water supply network. The method comprises the steps that first-order difference is conducted on pressure signals collected by pressure monitoring points, time window division is conducted on the pressure difference signals delta ni, a measuring point pressure difference window is generated, KPSS inspection is conducted on the measuring point pressure difference window, and the p value of the corresponding window is recorded; dividing the hydraulic state at the measuring point according to the value of p, finding a time period corresponding to the measuring point pressure difference window in the original pressure signal of the measuring point for the measuring point pressure difference window with the value of p greater than 0.05, dividing the part into a steady-state working condition, and classifying the rest into a transient working condition. The characteristic that KPSS detection is sensitive to stability detection of time sequence data is fully utilized, pressure sudden change signals are recognized, working condition division of hydraulic transient caused by pressure disturbance events including normal water inlet valve opening and closing, pump set starting and stopping switching and abnormal pipe explosion is achieved, the obvious pressure fluctuation time period can be divided, and the working condition division efficiency is improved. And some small-range pressure abrupt changes can be divided out, and convenience is provided for further analysis of a water supply pipe network.
本申请涉及一种供水管网水力状态判别方法，包括压力监测点采集的压力信号进行一阶差分，对压力差信号Δni进行时间窗口划分，生成测点压力差窗口，对测点压力差窗口进行KPSS检验，记录对应窗口的p值；根据p值对测点处水力状态进行划分，对于p值大于0.05的测点压力差窗口，在测点原压力信号中找到与之对应的时段，将该部分划分为稳态工况，剩余的归为瞬态工况。本申请充分利用了KPSS检验对时序数据平稳性检测的灵敏特点，识别压力突变信号，实现包括正常的进水阀门启闭、泵组启停切换和异常爆管在内的压力扰动事件引起水力瞬变的工况划分，不仅能划分出明显的压力波动时间段，还能将一些小范围的压力突变划分出来，为进一步的供水管网分析提供了便利。
Method for judging hydraulic state of water supply network
The invention relates to a method for judging the hydraulic state of a water supply network. The method comprises the steps that first-order difference is conducted on pressure signals collected by pressure monitoring points, time window division is conducted on the pressure difference signals delta ni, a measuring point pressure difference window is generated, KPSS inspection is conducted on the measuring point pressure difference window, and the p value of the corresponding window is recorded; dividing the hydraulic state at the measuring point according to the value of p, finding a time period corresponding to the measuring point pressure difference window in the original pressure signal of the measuring point for the measuring point pressure difference window with the value of p greater than 0.05, dividing the part into a steady-state working condition, and classifying the rest into a transient working condition. The characteristic that KPSS detection is sensitive to stability detection of time sequence data is fully utilized, pressure sudden change signals are recognized, working condition division of hydraulic transient caused by pressure disturbance events including normal water inlet valve opening and closing, pump set starting and stopping switching and abnormal pipe explosion is achieved, the obvious pressure fluctuation time period can be divided, and the working condition division efficiency is improved. And some small-range pressure abrupt changes can be divided out, and convenience is provided for further analysis of a water supply pipe network.
本申请涉及一种供水管网水力状态判别方法，包括压力监测点采集的压力信号进行一阶差分，对压力差信号Δni进行时间窗口划分，生成测点压力差窗口，对测点压力差窗口进行KPSS检验，记录对应窗口的p值；根据p值对测点处水力状态进行划分，对于p值大于0.05的测点压力差窗口，在测点原压力信号中找到与之对应的时段，将该部分划分为稳态工况，剩余的归为瞬态工况。本申请充分利用了KPSS检验对时序数据平稳性检测的灵敏特点，识别压力突变信号，实现包括正常的进水阀门启闭、泵组启停切换和异常爆管在内的压力扰动事件引起水力瞬变的工况划分，不仅能划分出明显的压力波动时间段，还能将一些小范围的压力突变划分出来，为进一步的供水管网分析提供了便利。
Method for judging hydraulic state of water supply network
一种供水管网水力状态判别方法
CHE BINBIN (Autor:in) / JIN BO (Autor:in)
27.06.2023
Patent
Elektronische Ressource
Chinesisch
Method for judging abnormity of gate hydraulic system
| Europäisches Patentamt | 2023
| ASCE | 2016