【摘 要】
:
In order to achieve the specific goal of a smart grid,the concept of electricity Internet of Things(eIoT)has been proposed to assist the monitoring and inspecti
【机 构】
:
State Grid Zhejiang Hangzhou Xiaoshan District Power Supply Co.,Ltd,Hangzhou,Zhejiang,311202,China;Z
论文部分内容阅读
In order to achieve the specific goal of a smart grid,the concept of electricity Internet of Things(eIoT)has been proposed to assist the monitoring and inspection of power transmission line state and optimize the asset utili-zation.The long power transmission line and the complex field operation environment urge the introduction of drones into the eIoT for fast power transmission line inspection,data collection from sensors for further big data analysis,adaptive control of power line voltage,etc.Additionally,drones can also act as a central communication control or relay point to serve the data exchange among sensors,drones and power transmission line maintenance personnel in the scenario where the conventional mobile communication service is not available.However,the fast mobility of drones may affect the signal transmission and position estimation performance,which may further deteriorate the networking performance.In order to solve this problem,a mobility compensation method is proposed,which includes the steps of frequency offset estimation and relative velocity calculation.Through the Monte Carlo simulations,the proposed algorithm shows favorable gains compared with the conventional ones.
其他文献
With the rapid development of the Internet of Things(IoT),Location-Based Services(LBS)are becoming more and more popular.However,for the users being served,how to protect their location privacy has become a growing concern.This has led to great difficulty
食品安全是重大的民生问题,建设职业化检查员队伍开展食品安全职业检查是保障食品安全的重要手段。本文结合目前食品安全监管实际情况,以广西食品安全职业检查试点情况为例,通过分析广西在试点食品安全职业检查过程中取得的成效及存在的问题,有针对性地提出了建设职业化检查员队伍开展食品安全职业检查对策建议。
随着人们生活条件和质量安全意识的不断提升,食品安全问题引起了人们的高度关注。为保障食品质量安全,认真做好食品检测工作具有重要的现实意义。基于此,本文分析了食品检测对行业和产业发展的影响,提出了食品安全背景下提升食品检测水平的对策。
当前,以航空航天为代表的高端装备领域对耐高温金属材料制造及应用有着巨大的需求,且航空航天等高端装备面临严酷的力/热载荷条件与重量约束,对设计和选材都提出了更高的要求
糖尿病作为胰岛细胞受损的代谢性疾病,虽然不具有致命性,但其并发症会严重损害身体健康,影响患者生活质量。本文在简述糖尿病患者饮食选择原则的基础上,阐述木糖醇、甜菊糖苷、山药多糖和雪莲果多糖4种代糖剂在人体内的代谢机理,并列举这几种代糖剂在不同饮食中的应用,为生产糖尿病专用饮食企业和消费者预控糖尿病提供一定的参考。
Software-Defined Networking(SDN)is an emerging architecture that enables a computer network to be intelligently and centrally controlled via software applications.It can help manage the whole network environment in a consistent and holistic way,without th
摊贩经济肩负着激发城市的活力与便利当地居民日常生活的责任。其中食品摊贩占流动摊贩总数的40%,因人们对食品安全问题越来越重视。本文针对食品摊贩特殊性详细分析了其存在的问题,并对食品摊贩管理措施进行了探究,以期能够为相关人员提供参考。
目的探讨神经肌肉电刺激结合耳穴刺激及吞咽训练治疗脑卒中吞咽障碍患者的效果。方法选择2018年1月至2020年6月我院收治的脑卒中吞咽障碍患者50例,随机分为两组各25例。对照组采用神经肌肉电刺激治疗,观察组在此基础上采用耳穴刺激与吞咽训练。对比两组的治疗效果及治疗前后的吞咽功能。结果观察组的治疗总有效率明显高于对照组(P<0.05)。治疗前,两组的SSA、VFSS评分比较无统计学差异(P>0.05);治疗后,观察组的SSA评分低于对照组,VFSS评分高于对照组(P<0.05)。结论对脑卒
随着生活水平的不断提升,人们越来越关注食品安全。本文针对食品安全快速检测技术的价值及当前我国食品安全现状进行详细分析,探究出食品安全快速检测技术的应用途径,为我国食品检测技术的发展提供参考。
The Extended Kalman Filter(EKF)has received abundant attention with the growing demands for robotic localization.The EKF algorithm is more realistic in non-linear systems,which has an autonomous white noise in both the system and the estimation model.Also