n present power system, the engineers face variety of challenges in planning, construction and operation. In some of the problems, the engineers need to use managerial talents. In system design or upgrading the entire system into automatic control instead of slow response of human operator, the engineers need to exercise more technical knowledge and experience. It is principally the engi- neer’s ability to achieve the success in all respect and provide the reliable and uninterrupted ServiCE to the customers. This chapter covers some important areas of the traditional power system that helps engineers to overcome the challenges. It emphasizes the characteristics of the various components of a power system such as generation, transmission, distribution, protection and SCADA system. During normal operating conditions and disturbances, the acquired knowledge will pro- vide the engineers the ability to analyse the performance of the complex system and execute future improvement
上传时间: 2020-06-07
上传用户:shancjb
API方式: 首选要在jx01移动代理服务器中进行如下配置 系统管理-->接口管理-->短信接口模块增加如下配置信息 接口编码: 接口名称: 接口类型: DB接口 API接口 WEB ServiCE接口 SOCKET接口 通信能力: 短信 WAP 业务类型: CRM应用 SCM应用 ERP应用 OA应用 EMAIL应用 行业应用 其它应用 业务代码: IMMF 短信子码: 22 23 24 手机指令: 短号支持: 启用 关闭 回执要求: 支持回执 不支持回执 登录用户: 登录密码: 接口状态: 运行状态 调试状态 暂停(失效)状态 失效日期: (不设置表示永久生效) 其中,接口编码,必须唯一系统内部识别码;接口名称:用于开发人员识别项目;短信子码:会加上特服号作为号码发送到用户手机上;登录用户:对于API开发中会用到;登录密码:同上API开发中会用到;接口状态:运行就是正常运行时使用,调试状态用于开发模式.
上传时间: 2021-07-27
上传用户:风云
以AT89S52单片机为控制核心,采用电容降压技术,Buck电路拓扑,PWM驱动模块和功率器件散热设计,通过高速的数据采集、主功率输入输出模块和控制模块,设计一种新型智能车载充电器.在充电过程中,通过负脉冲瞬间放电实现对铅酸蓄电池的再生修复,提高电池的有效容量,延长使用寿命.该充电器体积小、速度快、效率高、可靠性好.With AT89S52 single chip computer as the control core,a new type of intelligent car-carried charger was designed by using capacitance step-down technology,Buck circuit topology,PWM driving module and power device heat dissipation design,through high-speed data acquisition,main power input and output module and control module.In the charging process,the regeneration and repair of lead-acid batteries are realized by instantaneous discharge of negative pulse,which improves the effective capacity of batteries and prolongs their ServiCE life.The charger has the advantages of small size,fast speed,high efficiency and good reliability.
标签: 车载充电器
上传时间: 2022-03-27
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锂电池BMS管理技术是移动机器人的关键技术,本文设计了基于bq76PL455、STM32F103的锂电池管理系统,实现了电池组电压、电流、过压、过流等状态监测;系统配置均衡电路,电池充电过程中若出现电池单体电压不平衡现象,会触发均衡电路,进而提高电池的安全性,延长使用寿命。Lithium battery BMS management technology is the key technology of mobile robot.The lithium battery management system based on bq76PL455 and STM32F103 is proposed to realize the monitoring of battery pack voltage,current,overvoltage and overcurrent.The system is equipped with equalization circuit.When the battery cell voltage imbalance occurs,the equalization circuit is triggered to improve the safety and ServiCE life of the battery.
上传时间: 2022-04-02
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本章首先介绍论文的研究背景,先介绍无线Mesh网络,提出无线Mesh网络的特点与应用场景,然后从网络管理技术发展的角度,引出无线Mesh网络的管理技术。接着分析无线Mesh网络系统的研究现状,从无线Mesh网络的组网技术发展到相应的管理技术的发展。通过分析现阶段的发展瓶颈,引出论文的研究内容和创新点。最后介绍论文的组织结构安排。1.1研究背景1.1.1无线Mesh网技术无线Mesh网络(Wireless Mesh Network,WMN)7是一种新型动态自组织自配置的无线网络,它结合了无线局域网与移动自组网的特点,支持宽带和高速多媒体业务,近年来得到越来越多的重视和发展。它具有不同于传统网络的特点,在提高网络覆盖率、增加网络容量、减少前期投资方面具有很大优势。网络中的节点能够自动地建立无线多跳网络,被称为廉价的“最后一公里”宽带接入方案.在传统的无线局域网中,客户端通过AP(Access Point)接入点,利用无线链路来访问网络,这样形成的接入关系叫BSS(Basic ServiCE Set)用户相互通信依赖于这个固定的接入点AP,这样的网络是一种单跳的网络.而在无线Mesh网络中,一个Mesh节点既可以提供AP功能,又能提供各节点之间相互连接的功能,每个节点都是一个对等的结构,可以直接进行通信
上传时间: 2022-06-23
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RFID(Radio Frequency Identification)中间件的设计与系统的多个层相关,如RFID电子标签的数据采集、标签数据管理、RFID系统安全等。对于不同层,不同的设计和实现被具体应用所采纳。然而,以这种方法设计出来的中间件就会缺乏一致性和灵活性,设计者不能够以一个统一的框架设计RFID中间件。面向服务的RFID中间件架构SOA(ServiCE-oriented Architecture)是一种用于RFID各个应用领域软件开发的框架,它是一种以服务为中心的包含运行环境、编程架构风格在内的一套新的分布式软件系统构造方法和环境。使用SOA开发RFID中间件,能很好地改善软件设计中的整体性、灵活性和统一性。SOA是RFID中间件设计的基础,本文针对RFID中间件设计中存在的一些问题,如EPC编码的自动解析、RFID读写器的接入、RFID标签数据的交换或共享、RFID系统安全等,提出了面向服务的RFID中间件平台架构。本文用SOA的设计原则建立RFID中间件的软件构架,然后通过系统集成服务的方式——查询服务、调用服务和提供服务清晰地定义出RFID读写器管理服务、标签信息服务、RFID安全服务等。使其适合于不同的RFID应用,并且根据EPCglobal 标准实现EPC编码的自动解析,这样不仅有助于在不同平台间RFID标签数据的交换和集成,而且对于不同的应用降低了构建RFID系统的难度。
标签: rfid
上传时间: 2022-06-25
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1. General Description BL-M3362NS1 product is designed base on Broadcom BCM43362 chipset. It operates at 2.4GHz band and supports IEEE802.11b/g/n 1T1Rwith wireless data rate up to 72.2Mbps. It supports IEEE802.11isafety protocol, along with IEEE802.11e standard ServiCE quality. It supports standard interfaces SDIOV2.0(50 MHz,4-bit and1-bit) and generic SPI(up to 50 MHz), Integrated ARM Cortex?-M3 CPUwith on-chip memory enables running IEEE802.11 firmware that can be field-upgraded with future features.2. The range of applying Imaging platforms(printers, digital still cameras, digital picture frames)Consumer electronic devices(DTV, DVDplayers, Blu-ray players. etc.)Gaming platforms Carinformation MiFi/Mobile Routes Smart PAD Set-TopBoxes
标签: wifi
上传时间: 2022-07-04
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PrefaceDuring the past years, there has been a quickly rising interest in radio access technologies for providingmobile as well as nomadic and fixed ServiCEs for voice, video, and data. The difference indesign, implementation, and use between telecom and datacom technologies is also becoming moreblurred. One example is cellular technologies from the telecom world being used for broadband dataand wireless LAN from the datacom world being used for voice-over IP.Today, the most widespread radio access technology for mobile communication is digital cellular,with the number of users passing 5 billion by 2010, which is more than half of the world’s population.It has emerged from early deployments of an expensive voice ServiCE for a few car-borne users,to today’s widespread use of mobile-communication devices that provide a range of mobile ServiCEsand often include camera, MP3 player, and PDA functions. With this widespread use and increasinginterest in mobile communication, a continuing evolution ahead is foreseen.This book describes LTE, developed in 3GPP (Third Generation Partnership Project) and providingtrue 4G broadband mobile access, starting from the first version in release 8 and through the continuingevolution to release 10, the latest version of LTE. Release 10, also known as LTE-Advanced,is of particular interest as it is the major technology approved by the ITU as fulfilling the IMTAdvancedrequirements. The description in this book is based on LTE release 10 and thus provides acomplete description of the LTE-Advanced radio access from the bottom up.Chapter 1 gives the background to LTE and its evolution, looking also at the different standardsbodies and organizations involved in the process of defining 4G. It also gives a discussion of the reasonsand driving forces behind the evolution.Chapters 2–6 provide a deeper insight into some of the technologies that are part of LTE and itsevolution. Because of its generic nature, these chapters can be used as a background not only for LTEas described in this book, but also for readers who want to understand the technology behind othersystems, such as WCDMA/HSPA, WiMAX, and CDMA2000.Chapters 7–17 constitute the main part of the book. As a start, an introductory technical overviewof LTE is given, where the most important technology components are introduced based onthe generic technologies described in previous chapters. The following chapters provide a detaileddescription of the protocol structure, the downlink and uplink transmission schemes, and the associatedmechanisms for scheduling, retransmission and interference handling. Broadcast operation andrelaying are also described. This is followed by a discussion of the spectrum flexibility and the associated
上传时间: 2022-07-08
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eeworm.com VIP专区 单片机源码系列 56资源包含以下内容:1. LAB2000P单片机仿真实验系统.pdf2. MCS-51单片机主要应用特性.pdf3. 基于AD8337的自动增益调节电路的设计.pdf4. KEI1 UV2单片机开发环境的使用.pdf5. MCS51系列单片机双机并行互连的实现方法.pdf6. UBA2028在调光CFL系统中的应用介绍.pdf7. 基于C8051F的OLED控制电路的设计.pdf8. MCS-51系列单片机指令系统表数据传送类指令.pdf9. LPC2210使用指南.pdf10. 基于IDT75K62100芯片的硬件控制库设计.pdf11. 内置三极管和高频震荡器的8位单片机芯片MC10P12XX.pdf12. LJD-SY-5200单片机实验系统实验指导书.pdf13. 基于upc1658c的宽频带放大器的设计.pdf14. 最新超低成本的8位5V单片机系列使嵌入式设计.pdf15. LJD-51-XB+多功能单片机控制系统用户手册.pdf16. 基于nRF24Z1的CD音质无线耳机的设计.pdf17. LINUX和WINDIWS服务器的统一管理初探.pdf18. 基于SPCE061A的声控MP3播放器设计.pdf19. 一种基于微机的记录仪硬件设计.pdf20. 基于nRF24E1的无线讲解系统的设计.pdf21. 基于82C54的测时设备研制.pdf22. MAX275在电力线载波技术中的应用.pdf23. 海洋要素测量系统的控制存储电路设计.pdf24. 基于PIC16F877的电磁调速器控制系统.pdf25. 基于Infineon单片机的CAN网关研究.pdf26. 无线小型微功耗寻物系统的设计与实现.pdf27. 一种新型的异步电动机软起动器.pdf28. 基于单片机的便携式空气净化器.pdf29. 多级数字光圈控制器的设计和实现.pdf30. 基于C8051的光缆性能试验机的设计.pdf31. AD9859芯片资料.pdf32. C8051F040在曳引及制动性能检测系统中的应用.pdf33. 基于AD9859的扫频信号发生器的设计.pdf34. 医用充气式保温毯控制系统设计及仿真.pdf35. 数字式电子调速器动态特性的研究.pdf36. 基于PIC单片机的TCD1702C数据采集系统.pdf37. PCI9052在PCI适配卡设计中研究与应用.pdf38. 旋风预热器教研平台的设计与实现.pdf39. 一种基于单片机电压采样的功率因数在线检测.pdf40. 基于AVR与DDS技术的超声波电源研制.pdf41. VxWorks在AT91RM9200上的BSP设计.pdf42. 《单片机原理与应用》教学大纲.pdf43. FET430PIF自制资料.rar44. 单片机系统中红外通信接口的设计.pdf45. MSP430 USB JTAG自制资料.rar46. 单片机电路.pdf47. HT48RB8八位USB型OTP单片机.pdf48. ARM_Evaluator_7T原理图.rar49. 基于单片机的多数据采集系统的设计.pdf50. HT48R70A-1/HT48C70-1输入/输出型八位单片.pdf51. AVR Studio 4.12 ServiCE Pack 4.rar52. 几种有特色的单片机.ppt53. HT48RU80/HT48CU80输入/输出型八位单片机.pdf54. 51单片机游戏程序包括图纸.rar55. 关于Si4432的无线射频收发系统设计.pdf56. HT47R20 8位R-F型OTP单片机.pdf57. c51bus 51单片机的各种接口总线程序包.rar58. ADV7183B详细资料.pdf59. 多功能数字采访机的研究.pdf60. PLC在永磁无刷直流电机伺服系统中的应用.pdf61. 基于单片机SPMC75的模拟全自动洗衣机的设计.pdf62. HT46R23/HT46C23 A/D型八位单片机.pdf63. 单片机开发环境的使用.pdf64. 基于凌阳SPCE061A单片机的音控小车的设计.pdf65. 基于单片机的移动存储卡接口设计.pdf66. 超声波金丝球焊线机焊接压力控制系统设计.pdf67. 基于单片机的提花机控制系统设计.pdf68. SPMC65系列单片机集成开发环境FortisIDE使用说明.pdf69. FX-TXXXXC256A系列TFTLCD控制器与单片机的接.pdf70. 基于LabVIEW的血铅分析仪开发.pdf71. µPSD 3200系列多功能单片机实验系统.pdf72. 单片机和嵌入式LINUX开发的那点事儿.pdf73. 单片机实验指导书(济南大学).pdf74. HAMPIC F84-2IN1单片机实验板说明书.pdf75. 单片机实验指导书叙述.pdf76. McuPlayer的EMC单片机学习笔记.pdf77. 基于单片机的智能充电控制器的设计与应用.pdf78. 基于单片机的恒温控制系统.pdf79. EDAM8515A AVR单片机开发系统使用详解.pdf80. DAB基带芯片解析.pdf81. Neuron芯片与MCS-251系列单片机串行通信的实现.pdf82. ARM单片机开发调试方法.pdf83. 使用单片机制作多路输入电压表.pdf84. 单片机控制不良导体导热系数实验仪的研制.pdf85. DVCC系列单片机仿真实验系统.pdf86. 单片机技术在物理实验中的应用.pdf87. 单片机原理与应用(禹定臣).pdf88. 《单片机原理及应用》课程设计任务书.pdf89. 单片机原理及实用技术--凌阳16位单片机原理及应用.pdf90. 超力电子单片机抗干扰器.pdf91. 8位OTP单片机芯片BM35P02.pdf92. 单片机用TTL/RS-485/RS-422转换器.pdf93. 单片机系统综合训练指导书.pdf94. 8位MASK单片机芯片BL3502S.pdf95. 基于单片机的超低频任意函数信号发生器.pdf96. C8051F单片机产品技术要点.pdf97. 4位MASK LCD型单片机芯片BL2456.pdf98. ATtiny15/L单片机原理及其应用.pdf99. C8051F020片上系统(SOC)单片机小系统板简介.pdf100. 用单片机控制步进电机.pdf
上传时间: 2013-07-03
上传用户:eeworm
安装eVC4和ServiCE Pack(最终版本为SP4) 3. 安装SDK 4. 安装WINCE 5.0. 注意事项 1. 安装WinCE 5.0 with Platform Builder 需要系统里面已经安装
标签: 机械设计
上传时间: 2013-04-15
上传用户:eeworm