摘要：Due to the influence of the groundwater level,the internal humidity of the subgrade changes and the stability of the subgrade is affected. The main purpose of this paper is to obtain a reliable model of subgrade soil water content variation under the action of dry-wet cycle through sensor readings. Thus,an indoor soil column model test system is designed,and the readings of the sensors are used to determine the changing law of moisture field in the subgrade soil. The sensor readings indicate that the water content gradually decreases along the height of the soil column,and the water in the upper part of the soil column continuously loses,while the water in the lower part migrates upward to supplement. With the increase of dry-wet cycle index,the water holding capacity of soil decreases,and the soil surface gradually cracks and tends to rupture.

摘要：近年来随着智能网联技术的发展,人们的生活正在进入“互联网+”的时代。当人们的物质生活逐渐丰富起来后,原有的家居生活方式也随着物联网技术的革新逐步迈进了智能家居的时代。当前,科学技术正以前所未有的速度向全面集成化与智能化方向迈进,这一趋势在家庭用电管理的智能化控制方面尤为显著。针对电气自动化控制系统的优化,引入人工智能技术成为了一项重要策略。因此本文将介绍电气自动化控制与信息网络融合,以智能家居来颠覆传统家居生活方式,通过具体的实例来构建现代智能家居系统的控制方式,展示新时代的智慧生活。

摘要：特征提取是旋转机械故障分类中一个很重要的问题。为解决该问题,提出一种利用时域中已有的无量纲指标和遗传程序设计对旋转机械多类故障进行新无量纲指标提取的方法。实验结果表明,新无量纲指标比传统的无量纲指标具有更好的故障分类能力,能够对旋转机械故障进行准确分类。