High-resolution and accurate rainfall monitoring is of great importance to many applications, including meteorology, hydrology, and flood monitoring. In recent years, microwave backhaul links from wireless communication networks have been suggested for rainfall monitoring purposes, complementing the existing monitoring systems. With the advances in microwave technology, new microwave backhaul solutions have been proposed and applied for 5G networks. Examples of the latest microwave technology include E-band (71–76 and 81–86 GHz) links, multi-band boosters, and line-of-sight multiple-input multiple-output (LOS-MIMO) backhaul links. They all rely on millimeter-wave (mmWave) technology, which is the fastest small-cell backhaul solution. In this paper, we will study the rain attenuation characteristics of these new microwave backhaul techniques at different mmWave frequencies and link lengths. We will also study the potential of using these new microwave solutions for rainfall monitoring. Preliminary results indicate that all the test mmWave links can be very effective for estimating the path-averaged rain rates. The correlation between the mmWave link measurement-derived rain rate and the local rain gauge is in the range of 0.8 to 0.9, showing a great potential to use these links for precipitation and flood monitoring in urban areas.

The competition between countries around the world is becoming more and more intense, and it is the biggest problem facing enterprises to continuously improve production efficiency and control cost management. Among them, the processing and manufacturing industry applies the intelligent Internet of Things technology, and the intelligent Internet of Things technology has realized the reduction of operating costs. The intelligent Internet of Things technology is an important part of the processing and manufacturing management. This technology provides support for enterprises to use intelligent and automated processing tools. The technology efficiently completes various business operations, saves the cost of processing and manufacturing, and improves processing efficiency and product value. At the same time, this technology is also the focus of higher vocational teaching. The author gives a brief overview of the intelligent Internet of things technology, and then the author analyzes the application and exploration of intelligent Internet of things technology in processing and manufacturing. This article has certain reference significance for the industry.

Abstract-The pressure correction method based on N-S equation, using the split SIMPLE algorithm, the crosswind conditions of pantograph's aerodynamic characteristics numerically simulation analyzed. The results show that with the wind direction increasing, the pantograph's aerodynamic load is nonlinear, the lift coefficient increases with the increase of wind angle; at the same time as the wind speed increases, the slope of lift coefficient increases; pantograph overturning moment, cornering coefficient increase as wind direction angle increases. The lateral force coefficient increases monotonically with wind direction angle increases; to flow around the contact wire and slide, slide bracket, forming a large area in the rear of the slide wake zone near the leeward side, small scale in the slide and contact line vortex accounted for the major part, while the two slide end and separate the vortex interaction support And the results can provide a basis for improving stability and safety of the pantograph of the crosswind.