基于TCP/IP的嵌入式智能蓄电池巡检系统的设计

蓄电池巡检仪能同时对蓄电池组各节电池进行实时监控,全面获取蓄电池状态信息.系统地阐述了一种基于TCP/IP通信的嵌入式智能蓄电池巡检系统的设计,该巡检系统的上位机是基于LabVIEW软件开发的人机交换界面,下位机采用嵌入式uClinux操作系统,上下位机通过以太网通讯.重点介绍了整个系统的结构、检测原理、硬件电路和开发流程.     

蓄电池组中单节电池失效的检测及更换

蓄电池组供电能力不足一般多是蓄电池组中单节电池失效造成的。如果不能及时检测出该单节电池,就会导致蓄电池整组报废。检测、替换失效电池是电池组维护的主要工作,文中提供了一种快捷高效的检测、更换失效电池的方法。     

基于监控系统的蓄电池容量检测的研究

在现有的动力及环境监控系统基础上,利用从开关电源采集到的蓄电池组放电电压和放电电流,提出了一种蓄电池容量检测算法。该算法得到的蓄电池性能分析报表及预警信息,可用于指导蓄电池日常的维护工作,提高蓄电池维护工作的效率。     

利用在线阻抗监测分析技术提高蓄电池的维护与管理

1 目前蓄电池维护工作存在的主要问题及改进要求 阀控铅酸蓄电池组（以下简称蓄电池）是通信系统中应用最广泛的备用电源蓄电池。有效的监控和科学的维护对于保证蓄电池组的稳定运行至关重要,及时发现和解决蓄电池系统中的隐患,提高蓄电池组的安全性是维护工作的重点,通过科学的指导,降低蓄电池维护强度和成本是维护工作所追求的目标。     

基站蓄电池差异化维护的必要性

蓄电池的使用寿命和实际容量与温度、均浮充电压等因素密切相关。文中着重分析了影响基站蓄电池使用寿命的主要原因,阐述了如何对基站阀控式蓄电池进行精细化管理延长蓄电池使用寿命,重点对直流中高频开关电源以及蓄电池组的使用配置、维护以及检测等精细化管理相关问题进行探讨。     

电池组全在线放充电维护设备的应用

本文通过描述传统中心机房蓄电池组维护方式存在的隐患和"蓄电池组全在线放充电安全节能维护系统设备FBI"的突出维护功能.向大家分享使用"蓄电池组全在线放充电安全节能维护系统设备FBI"进行中心机房蓄电池组维护的工作过程和感受.     

广电干线网机房蓄电池组的维护和保养

近年来,随着广电安全播出要求的不断提高,蓄电池组越来越多地应用到机房交、直流供电系统中,特别是在影响较大的中心机房和传输干线机房,蓄电池组已经成为保障网络安全播出的必备设施。由于以往对 “免维护”概念的误解,许多蓄电池组还远远未达到规定的使用年限就已经不得不报废处理,不但造成了资金上的浪费,并且对于发挥蓄电池组的后备电源作用,保障网络安全都带来很大威胁。本文试图从广电干线网蓄电池组使用特点和维护条件出发,结合蓄电池组维护技术、管理的最新发展动态,提出适合广电系统特点的蓄电池组维护和保养方案。希望能为各地干…     

基站蓄电池的维护问题及对策

1 基站蓄电池组的维护现状 基站电源包括开关电源和蓄电池组,电源的正常工作受开关电源和蓄电池两方面影响.目前,基站的开关电源大多采用多整流器并联输出的方式,蓄电池由各营业部门进行管理维护,大多数维护人员没有电池维护的专业知识,也没有专用设备、相应的专业标准,维护人员对电池的维护基本上是按"免维护"办理,工作内容就是记录蓄电池组电压和清扫灰尘.     

蓄电池组智能维护仪的设计及实现

在通信备用电源系统的维护中,对蓄电池组的维护管理占据非常重要的位置。讲述了采用微控制器AT89S52进行蓄电池组智能维护仪的设计和实现方法。首先讲解了系统总体框架结构的设计方法,然后重点阐述了主控制板块功能的实现过程。实践证明,该蓄电池组智能维护仪使用方便、性能可靠。     

延长阀控蓄电池使用寿命的几点探讨

本文通过讨论阀控铅酸蓄电池失效成因，针对局站后备蓄电池维护中存在的薄弱环节，结合通信局站蓄电池运维特点，从预防性维护角度出发，提出针对性的维护要点，落实到蓄电池维护计划中，以期提高后备蓄电池组的稳定性、可靠性。蓄电池使用寿命的延长，达到建设集约型企业和倡导环保理念，取得环保社会效益。     

基于快速传输海量存储的电能质量监测系统

根据对传统电能质量采集装置的分析和研究,文中提出了基于CAN总线的电能质量监测及数据存储系统的设计方案。该装置主要针对数据的大量和可靠性传输,设计了一种基于CAN总线的快速数据传输平台,有效地实现了基站与上位机系统之间的数据通信;同时利用U盘读写模块,使装置外扩了大容量移动硬盘,实现了数据的海量存储。另外,给出了数据采集、锁相倍频、数据通信等模块电路。测试表明,各项指标达到设计要求,方案有效可行。     

微机控制蓄电池监测系统¹

本文介绍了微机控制分布式蓄电池监测系统的设计。它用在对工业蓄电池的电压和环境温度进行实时监测，在PIC16C73A控制下，把测量结果通过RS－485通讯口传送给主机，然后由主机判断电池电压，温度等参数是否正常，以防止因电池故障而导致的系统瘫痪。     

Poly(2,5-Dihydroxy-1,4-Benzoquinonyl Sulfide) As an Efficient Cathode for High-Performance Aqueous Zinc–Organic Batteries

Aqueous rechargeable zinc-ion batteries (ZIBs) have attracted considerable attention as a promising candidate for low-cost and high-safety electrochemical energy storage. However, the advancement of ZIBs is strongly hindered by the sluggish ionic diffusion and structural instability of inorganic metal oxide cathode materials during the Zn²⁺ insertion/extraction. To address these issues, a new organic host material, poly(2,5-dihydroxy-1,4-benzoquinonyl sulfide) (PDBS), has been designed and applied for zinc ion storage due to its elastic structural factors (tunable space and soft lattice). The aqueous Zn-organic batteries based on the PDBS cathode show outstanding cycling stability and rate capability. The coordination moieties (O and S) display the strong electron donor character during the discharging process and can act as the coordination arms to host Zn²⁺. Also, under the electrochemical environment, the malleable polymer structure of PDBS permits the rotation and bending of polymer chains to facilitate the insertion/extraction of Zn²⁺, manifesting the superiority and uniqueness of organic electrode materials in the polyvalent cation storage. Finally, quasi-solid-state batteries based on aqueous gel electrolyte demonstrate highly stable capacity under different bending conditions.     

基于C8051F040单片机的CAN总线系统设计

本设计是基于带有CAN控制器的C8051F040单片机的CAN总线的数据控制系统,通过USB口,实现了两个CAN节点与上位机之间的数据传输。CAN节点是基于C8051F040单片机设计而成的温度采集系统并且可以接收上位机传来的数据。上位机软件是基于VB语言设计而成的与CAN节点交互的接口,主要实现了接收温度数据并通过图表实时显示,与发送数据到CAN节点的功能。本设计对于研究和了解CAN多节点间的通信和控制的应用有着重要的意义。     

A 3D Hybrid of Chemically Coupled Nickel Sulfide and Hollow Carbon Spheres for High Performance Lithium–Sulfur Batteries

Lithium–sulfur batteries are a promising next‐generation energy storage device owing to their high theoretical capacity and the low cost and abundance of sulfur. However, the low conductivity and loss of active sulfur material during operation greatly limit the rating capabilities and cycling stability of lithium–sulfur batteries. In this work, a unique sulfur host hybrid material comprising nanosized nickel sulfide (NiS) uniformly distributed on 3D carbon hollow spheres (C‐HS) is fabricated using an in situ thermal reduction and sulfidation method. In the hybrid material, the nanosized NiS provides a high adsorption capability for polysulfides and the C‐HS serves as a physical confinement for polysulfides and also a 3D electron transfer pathway. Moreover, NiS has strong chemical coupling with the C‐HS, favoring fast charge transfer and redox kinetics of the sulfur electrode. With a sulfur loading of up to 2.3 mg cm^?2, the hybrid material‐based lithium–sulfur batteries offer a capacity decay as low as 0.013% per cycle and a capacity of 695 mA h g^?1 at 0.5 C after 300 cycles. This unique 3D hybrid material with strong chemical coupling provides a promising sulfur host for high performance lithium–sulfur batteries.     

Low‐Overpotential Li–O2 Batteries Based on TFSI Intercalated Co–Ti Layered Double Oxides

Lithium–oxygen batteries with an exceptionally high theoretical energy density have triggered worldwide interest in energy storage system. The research focus of lithium–oxygen batteries lies in the development of catalytic materials with excellent cycling stability and high bifunctional catalytic activity in oxygen reduction and oxygen evolution reactions. Here, a hierarchically porous flower‐like cobalt–titanium layered double oxide on nickel foam with intercalated anions of bistrifluoromethane sulfonamide (TFSI) is designed and prepared. When used as a binder‐free cathode for lithium–oxygen batteries, this material exhibits low polarization (initial polarization of 0.45 V) and superior cycling stability (80 cycles at a current density of 100 mA g^?1 at full discharge/charge). The high electrochemical performance of the cathode material is attributed to the good dispersion of binary elements in its host layer and good compatibility with lithium bistrifluoromethane sulfonamide electrolyte induced by intercalated guest anions of TFSI within its interlayer. This work provides a novel strategy for the fabrication of binder‐free cathodes based on layered double oxides for high‐performance lithium–oxygen batteries.     

基于CH341的USB—CAN适配器设计

为便捷上位机访问工业现场CAN总线,提出了一种便携式即插即用的USB-CAN适配器设计方案。该适配器采用CH341作为USB总线转接芯片,直接把USB总线协议转化为并口协议;选用SJ『A1000芯片作为CAN控制器,支持CAN2．0B协议,以适应不同的CAN总线需求。系统从USB端口取电,且无需MCU／DSP介入,简化了电路结构;利用CH341主动并口功能,经相应的控制时序逻辑转换,上位机即可驱动SJA1000,进行CAN总线访问。该适配器支持上位机自主配置,灵活强,可靠性高。经实验测试,适配器支持访问不同的CAN总线网,速率可达1Mb／s。     

基于CAN总线的仓库温湿度监控系统的设计

为了提高仓库监控系统的可靠性和传输距离,设计了基于CAN总线的仓库监控系统。系统采用分布式网络结构,主要分为上位机和下位机两部分。上位机主要完成了EPP并口协议的CAN通讯适配器的设计以及仓库人机界面的软件设计;下位机主要完成了CAN节点和温、湿度等参数的传感器选型和对温、湿度等参数控制器的设计。设计的系统满足对大库区的环境参数实时检测的要求。     

A Self-Sodiophilic Carbon Host Promotes the Cyclability of Sodium Anode

Benefiting from abundant resource reserves and considerable theoretical capacity, sodium (Na) metal is a strong anode candidate for low-cost, large-scale energy storage applications. However, extensive volume change and mossy/dendritic growth during Na electrodeposition have impeded the practical application of Na metal batteries. Herein, a self-sodiophilic carbon host, lignin-derived carbon nanofiber (LCNF), is reported to accommodate Na metal through an infiltration method. Na metal is completely encapsulated in the 3D space of the LCNF host, where the strong interaction between LCNF and Na metal is mediated by the self-sodiophilic sites. The resulting LCNF@Na electrode delivers good cycling stability with a low voltage hysteresis and a dendrite-free morphology in commercial carbonate-based electrolytes. When interfaced with O3-NaNi_0.33Mn_0.33Fe_0.33O₂ and P2-Na_0.7Ni_0.33Mn_0.55Fe_0.1Ti_0.02O₂ cathodes in full cell Na metal batteries, the LCNF@Na electrode enables high capacity retentions, long cycle life, and good rate capability. Even in a “lean” Na anode environment, the full cells can still deliver good electrochemical performance. The overall stable battery performance, based on a self-sodiophilic, biomass-derived carbon host, illuminates a promising path towards enabling low-cost Na metal batteries.     

Halide Perovskite Materials for Energy Storage Applications

Halide perovskites, traditionally a solar‐cell material that exhibits superior energy conversion properties, have recently been deployed in energy storage systems such as lithium‐ion batteries and photorechargeable batteries. Here, recent progress in halide perovskite‐based energy storage systems is presented, focusing on halide perovskite lithium‐ion batteries and halide perovskite photorechargeable batteries. Halide‐perovskite‐based supercapacitors and photosupercapacitors are also discussed. The photorechargeable batteries and photorechargeable supercapacitors employ solar energy to photocharge the battery; this saves energy and improves device portability. These lightweight, integrated halide perovskite‐based systems, which are pertinent to electric vehicles and portable electronic devices, are reviewed in detail. Suggestions on future research into the design of halide‐perovskite‐based energy storage materials are also given. This review provides a foundation for the development of integrated lightweight energy conversion and storage materials.