浅谈电动叉车坐姿状态感知系统的设计方案

针对现有电动叉车“坐姿状态感知系统”功能设计中缺少意外状态下对货叉架下降运行的保护,结合电动叉车各项动作的原理分析,总结了货叉架下降运行不需要启动油泵的特殊性,设计了在多路换向阀回油管路加装电磁阀结合继电器零位控制,实现“坐姿状态感知系统”功能的设计方案,与重新设计多路换向阀结构形式相比,方案可实现对生产成本的有效控制且便于实施。

基于边缘计算技术的5G网络状态感知系统设计与分析

5G网络在实现业态重塑和推进产业升级的同时,对网络状态的稳定性、可靠性提出了较高的要求,进而催生了对5G网络适时、精准的状态感知与故障预警需求。5G网络具有高速低延时、大规模接入的特性,但受网络中心及网络边缘接入设备计算及能量资源限制,无法实现及时反馈和精确预警。基于边缘计算技术能够弥补终端及网络中心算力不足并保持5G网络特性的优势,文中结合边缘计算技术设计一种探针式网络状态感知系统,给出其功能构架、网络部署及工作流程。系统采用类分布式部署方式,将探针植入采集对象,同时收集端到端网络状态特征数据及设备自身状态数据,经边缘服务器预处理再回传分析中心进行网络状态分析,实现对5G网络状态的全方位感知分析。结果表明,所设计系统可以支持多种应用场景,并在其中发挥积极增益的作用。

避雷器全状态感知系统的研制

根据输电线路避雷器的特点,提出了避雷器的全状态感知系统,并采用非接触式传感器在线监测避雷器,有效降低避雷器的剩余电压,提高系统的可靠性和稳定性。除了对避雷器进行基本的漏电流监控外,还对工作电流进行了波形记录分析,以便更全面地了解避雷器的工作状态。研究结果对提高全网的故障预防和事故分析能力具有重要的积极意义,有利于提高输电线路的防雷水平,降低输电线路的雷击次数,具有很好的应用价值和市场前景。

牵引变电设备状态感知与分析系统方案研究

牵引供电系统正在向智能化、数据化、自动化的方向发展,而牵引供电系统的在线监测数据相对单一,缺乏对各类设备信息中有效数据的综合应用及分析。本文通过研究状态感知与分析技术,结合牵引变电关键设备故障特点及原因,提出牵引变电设备状态感知与分析系统设计方案,并对该方案进行现场验证,实现对牵引变电设备运行状态实时诊断评估、故障预警及诊断分析,提高了牵引变电设备运行的质量。

泰州大桥钢桥面铺装十年养护总结与评价

泰州大桥作为国家级重大工程,是世界首座千米级三塔悬索桥。主跨2×1 080 m,钢桥面铺装采用“下层浇注+上层环氧”的刚柔复合型铺装方案,其结构体系为桥梁技术前沿的突破性创新,系世界首创,具有“三塔两跨悬索桥型、钢箱梁结构超长、交通量较大、重型车比例高、桥位区雨量充沛、相对湿度大”等独有的工程特点。泰州大桥超长超柔钢桥面结构也对运营维养提出了新挑战,系大桥建设的“八大技术难点”之一。大桥在钢桥面铺装养护运营阶段做了大量卓有成效的研究与实践工作,取得了丰硕成果,建立了桥面系服役状态感知系统,摸清了铺装性能衰变规律,并定期开展洒水控温和治超,促进日常管养的成效明显。此外,还开展了人工步检及专业化检测工作,实现检测全面覆盖,开发了适用于刚柔复合型铺装长期服役的耐久性保存和提升的关键技术,实现高品质耐久性服役。

Simplified Echo-State-Network Based Services Awareness for High-Speed Passive Optical Network

With the challenge from services diversity grows greatly,the service-oriented supporting ability is required to current high-speed passive optical network(PON) .Aimed to enhance the quality of service(Qo S) brought by diversified-services,this paper proposes an Simplified Echo State Network(SESN) Based Services Awareness scheme in High-Speed PON(Passive Optical Network) .In this proposed scheme,the ring topology is adopted in the reservoir of SESN to reduce the complexity of original Echo State Network,and system dynamics equation is introduced to keep the accuracy of SESN.According to the network architecture of 10G-EPON,a SESN Master is running in the OLT and a number of SESN Agents work in ONUs.The SESN Master plays the main function of service-awareness from the total view of various kinds services in 10G-EPON system,by fully SESN training.Then,the reservoir information of well-trained SESN in OLT will be broadcasted to all ONUs and those SESN Agents working in ONUs are allowed to conducts independent service-awareness function.Thus,resources allocation and transport policy are both determined just only in ONUs.Simulation results show that the proposed mechanism is able to better supporting ability for multiple services.

Echo-state-network classification based multi-services awareness in high-speed optical passive networks

With the challenge of great growing of services diversity,service-oriented supporting ability is required by current high-speed passive optical network( PON). Aimed at enhancing the quality of service( Qo S) brought by diversified-services,this study proposes an echo state network( ESN)based multi-service awareness mechanism in 10-Gigabite ethernet passive optical network( 10GEPON). In the proposed approach,distributed architecture is adopted to realize this ESN based multi-service awareness. According to the network architecture of 10G-EPON,where a main ESN is running in OLT and a number of ESN agents works in ONUs. The main-ESN plays the main function of service-awareness from the total view of various kinds of services in 10G-EPON system,by full ESN training. Then,the reservoir information of well-trained ESN in OLT will be broadcasted to all ONUs and those ESN agents working in ONUs are allowed to conduct independent service-awareness function. Thus,resources allocation and transport policy are both determined only in ONUs. Simulation results show that the proposed mechanism is able to better support the ability of multiple services.

智能巡检技术在输变电中的应用

阐述输变电智能巡检技术的特点,探讨输变电智能巡检技术的应用并进行展望,包括变电设备智能巡检、地理信息系统、物联网状态感知系统、环境监测系统、不停电检修技术的应用。