动态高压触点PSO优化VMD用于压力信号解读和预测供水网络中的压力信号
1College of Engineering Science and Technology, Shanghai Ocean University, Shanghai 201306, China.
Entropy (Basel, Switzerland)
|November 26, 2025
概括
这项研究引入了一种新的Dynamic Hyperbolic Tangent PSO优化变量模式分解 (DHTPSO-VMD) 方法,以有效地消除城市供水数据. 这种先进的技术可以提高智能水资源管理系统的预测准确度.
科学领域:
- 工程 工程师 工程师 工程师
- 计算机科学 计算机科学
- 环境科学 环境科学
背景情况:
- 城市供水网络面临着严重的噪音干扰,降低了数据驱动预测模型的性能.
- 像变化模式分解 (VMD) 等传统的无声化方法通常需要经验参数调整,并与识别噪声占主导地位的组件作斗争.
研究的目的:
- 为提议一个新的染框架,Dynamic Hyperbolic Tangent PSO-optimized VMD (DHTPSO-VMD),以提高城市供水网络的数据质量.
- 改进VMD的自动参数选择,准确识别和删除与噪音相关的内在模式函数 (IMF).
主要方法:
- 开发了动态高压触角粒子集群优化 (DHTPSO) 算法,用于VMD中的自适应参数调整,避免局部最佳.
- 实施了使用变异贡献率 (VCR) 和相关系数度量 (CCM) 的双重标准选策略,以过噪音占主导地位的IMF.
- 使用来自中国江省城市供水网络的压力数据验证了DHTPSO-VMD方法.
主要成果:
- 在无声化方面,DHTPSO-VMD显著超过了基准方法 (PSO-VMD,EMD,SABO-VMD,GWO-VMD),显示了信号与噪声比 (SNR),平均绝对误差 (MAE) 和平均平方误差 (MSE) 的改进.
- 使用DHTPSO-VMD预处理数据的Informer模型进行预测实验,实现了高预测准确度 (R2 = 0.948924).
结论:
- 拟议的DHTPSO-VMD框架提供了一个强大的,自动化的解决方案,用于消除城市供水网络中的复杂信号.
- 这种方法提高了数据驱动预测模型的准确性,对于智能供水管理来说非常有价值.
相关概念视频
Pressure Variation in a Fluid at Rest
721
In a fluid at rest, the pressure at any point beneath the fluid surface depends solely on the depth, not on the container's shape or size. This principle, known as hydrostatic pressure, arises because, in stationary fluids, there is no acceleration, meaning the forces within the fluid balance out. Only vertical forces, caused by the weight of the fluid above, contribute to pressure changes with depth.
When measuring pressure at two different levels within the fluid, the difference in...
When measuring pressure at two different levels within the fluid, the difference in...
721
Uniform Depth Channel Flow: Problem Solving
420
To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...
420
Pressure of Fluids
21.4K
There are many examples of pressure in fluids in everyday life, such as in relation to blood (high or low blood pressure) and in relation to weather (high- and low-pressure weather systems). A given force can have a significantly different effect, depending on the area over which the force is exerted. For instance, a force applied to an area of 1 mm2 has a pressure that is 100 times greater than the same force applied to an area of 1 cm2. That's why a sharp needle is able to poke through...
21.4K
Uniform Depth Channel Flow
522
Uniform depth channel flow keeps fluid depth consistent along channels such as irrigation canals. In natural channels, such as rivers, approximate uniform flow is often assumed. This condition occurs when the channel’s bottom slope matches the energy slope, balancing potential energy lost from gravity with head loss due to shear stress. This balance prevents depth changes along the channel length, resulting in a steady, uniform flow.Uniform flow in open channels with a constant cross-section...
522
Rapidly Varying Flow
406
Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...
406
Pipe Flowrate Measurement: Problem Solving
798
A spray tank system is engineered to uniformly distribute a pest-control liquid across plants by using a pressurized mechanism. The tank, pressurized to 150 kPa, holds the pesticide at a height of 0.80 meters. Liquid flows from the tank through a 1.9 meter pipe with a diameter of 0.015 meters, angled at 0.698 radians, ultimately reaching a 0.007 meter nozzle that sprays the pesticide. Accurate calculation of the system's flow rate is crucial to ensure uniform application, and this is achieved...
798


