主要内容包括箱式变电站的发展应用，箱式变电站的结构分类，以及箱式变电站一次系统设计及其设备选型，二次系统设计，以及箱式变电站的智能监控系统。10KV箱式变电站的设计高压侧额定电压为10KV，低压侧额定电压为0.4KV，主变压器容量为1 600KVA。主接线采用单母线分段接线。 (2022-04-16, WORD, 175KB, 下载0次)
http://www.pudn.com/Download/item/id/1650084360376427.html
区别于一般的最大功率示踪算法，采用占空比扰动法优化输出，比扰动观察法效果更好
Different from the general maximum power tracing algorithm, using the duty cycle disturbance method to optimize the output is better than the disturbance observation method (2020-03-28, WORD, 3003KB, 下载0次)
S7-200plc掉电数据保持的存储器件，数据保持的方法，EEPROM写入次数的统计，S7-200CPU内部数据的工作顺序。
S7-200 PLC power down data retention memory device, data retention method, EEPROM write times statistics, S7-200 CPU internal data work order. (2020-01-02, WORD, 33KB, 下载0次)
介绍一种单总线的网络设计,由于多个DS18B20组成的网络设计
introduce a design of 1-wire BUS (2017-09-07, WORD, 175KB, 下载1次)
嵌入式QT实验报告,Appchooser应用程序选择器,4， 引入了动画框架，利用Qt Animation实现动画状态机
Embedded QT lab report, Appchooser application selector 4, the introduction of animation frames, use Qt Animation animated state machine (2016-10-14, WORD, 73KB, 下载1次)
本方案通过对现有网吧的现状，对网吧经营者与用户的需求分析，根据项目设计的原则，从系统总体方案设计，其中包括网络干线、支线的构建，网络的拓扑图，网吧中路由器、交换机以及各种设备的选型。
软件方面对于系统的实现，我们采用无盘BXP3.11技术下的无盘XP系统，其中概述了无盘系统的概念，无盘系统的分类，无盘系统的特征，详细介绍了无盘BXP3.11的安装方法与注意事项。在软件实现方面还包含了网吧服务器系统的说明，介绍了网吧游戏服务器系统、网吧视频点播系统、网吧计费系统的选择与建设。在网吧的经营中，安全很重要，在这方面我们需要选择较好的软件去保护好系统。其后，我们结合网吧的需求与解决方案，在综合布线中把整个网吧的软硬件系统衔接起来。在方案的最后，我们把网吧的各种工程报价列举出来，方便经营者能够有比较好的参考点。
The programme through the existing Internet cafes, the status of the Internet cafe operators and users needs analysis, the design of the principles of the general design of programmes, including network link, extension of construction, the network of topography, Internet cafes, router, switch and equipment of the election. Software for the system, we adopt disk BXP 3.11 technology, no disk XP System, which outlines the disk system, there is no system of classification, there is no system of identity, detailed information on the disk BXP 3.11 installation methods and attention. The software for also includes the Internet cafes server system on the Internet cafes game server system, Internet cafes Video on Demand system, Internet cafes billing system of choice and construction. In the business, Internet cafes, safety is very important, in this regard, we need to choose a better system software to protect. After that, we combine Internet cafes needs and solutions, in a structured cabling (2010-02-08, WORD, 224KB, 下载58次)
PLC好学吗？有的人说好学，更多的人说难学。我的看法是入门易，深造难。入门易，总有它易的方法。很多人都买了有关PLC的书，如果从头看起的话，我想八成学不成了。因为抽象与空洞占据了整个脑子，一句话晕！
学这东东要有可编程控制器和简易编程器才好，若无，一句话，学不会。因为无法验证对与错。如何学，我的做法是直奔主题
PLC to learn it? Some people say that to learn, more difficult to learn that. My view is that entry is easier to study hard. Easy entry, there is always easy to approach it. Many people have bought a book on the PLC, if people could see that, I would like to learn not to become八成. As abstract and empty to occupy the entire brain, a word halo! Dongdong must learn this simple programmable logic controller and programmer to do, and if not, a word, the school will not. Could not be verified because of right and wrong. How to learn, I went straight to the theme of the approach is (2009-07-08, WORD, 349KB, 下载6次)
介绍了新型变压器油色谱在线监测系统的关键技术。带微孔的聚四氟乙烯膜使渗透速度大大提高，仅用两天时间可完成油气分离；带延迟毛细管的复合色谱柱达到了理想的分离度；新型热线型气敏传感器灵敏且对数线性度好；整套装置的分布式控制技术工作可靠、体积小、易维护。
Introduced a new type of transformer oil chromatography-line monitoring system of key technologies. With microporous PTFE membrane so that the seepage rate greatly increased, just two days to complete the separation of oil and gas with delayed capillary column of the composite reached a satisfactory degree of separation new hotline-based gas sensor sensitive to the number and linearity package devices reliable distributed control technology, small size, easy to maintain. (2009-07-08, WORD, 98KB, 下载15次)
#4炉炉膛压力变送器在A级检修前频繁出现堵灰现象，运行中仪表班与自动班的变送器每周都要进行清灰，有时会出现一天吹2-3次的情况，不仅检修人员维护工作量大，并且每次清灰，为了防止炉膛压力保护动作(MFT跳闸)，每次都要退除炉膛压力保护
# 4 furnace furnace pressure transmitter in the A-level maintenance Clogging former frequent phenomenon, running classes and automatic meter transmitter classes every week for cleaning, sometimes 2-3 times a day blowing the situation, not only the maintenance staff to maintain a heavy workload, and each time cleaning, in order to prevent action to protect the furnace pressure (MFT tripping), every time the furnace back pressure in addition to the protection of (2009-04-30, WORD, 652KB, 下载2次)
U盘读写器设计，包括CBW，CSW，UFI。
U disk reader designs, including CBW, CSW, UFI. (2009-01-21, WORD, 87KB, 下载60次)
基带无源EOC的应用说明，是利用了有线电视信号使用54～860MHz高端频率，以太网的基带数据信号使用0～42MHz的低端频率，故两者可以在同一根电缆中传输，结合RF有线电视技术与数据以太网数据传输技术，把以太网的数据基带信号通过合路器馈送到原电视网的分配电缆上，与电视信号一起送至用户。在用户端，通过分离器将电视信号与数据信号分离开来，分别送入各自的终端设备，如电视信号送入电视机，数据信号送入计算机，实现了电视和数据信号在原电视网入户电缆上的合路、传输、分配、分离。
err (2008-12-11, WORD, 8KB, 下载19次)
无论是体系结构还是指令集，大家或多或少都应该对X86汇编有些了解，而对于嵌入式领域已被广泛采用的ARM 处理器，了解的可能并不多。
Whether it is architecture or instruction set, we should be more or less a compilation of the X86, some understanding, and for the field of embedded has been widely used in ARM processors, may not be more understanding. (2008-09-20, WORD, 23KB, 下载3次)
watchdog,中文名称叫做“看门狗”，全称watchdog timer,从字面上我们可以知道其实它属于一种定时器。
watchdog, the Chinese name called watchdog , the full name of watchdog timer, literally a matter of fact we can know that it belongs to a timer. (2008-09-20, WORD, 7KB, 下载7次)
本系统要实现的主要功能有：
1． 用户申请注册功能。用户通过申请可以得到一个自己命名的信箱，容量大小为10M。
2． 用户忘记密码处理功能。用户忘记密码可以通过注册时设置的密码提示问题来重设密码。
3． 用户收邮件功能。它包括SMTP收邮件、POP3取邮件和WWW读邮件三种方式。
4． 用户发邮件功能。它包括SMTP发邮件、WWW直接发送邮件、暗送邮件、抄送邮件、定时发送邮件。
5． 用户信件处理功能。系统初始设置4个文件夹来分类处理信件：收件箱、发件箱、草稿箱和垃圾箱。用户还可以自己建立新的文件夹。信件在各个信箱之间可以相互移动。
6． 用户查找功能。用户可以使用查找功能通过查找信件主题或信件内容来找到自己需要的信件。
7． 用户信箱配置设置。它包括个人资料更改、密码更改、参数设置、POP3服务器设置、过滤器设置、自动转信、定时发信、签名设置。
8． 管理员管理用户和信箱邮件功能。包括输入（增删改）、查询、统计、报表。系统性能参数设置。
9． 广播功能。它用于公司定期向一定的用户发送信息，由于一般的用户数有一定数量，所以必须用数据库管。
err (2008-06-26, WORD, 83KB, 下载14次)
从介绍DVCC8086十六位微型机的硬件组成开始，讨论了十六位微机实验系统的输入输出的相关内容。描述DVCC8086十六位微型机本身的所有资源，同时也对本设计中使用的输入输出设备开关量、数码管显示器、与输入输出相关的接口芯片及其驱动程序进行了详细的讲解。最后给出了一个具体的输入输出的应用,以此来了解如何进行一个完整的输入输出系统的设计。
From 16 DVCC8086 introduce microcomputer hardware components began to discuss the experimental system microcomputer 16 input and output of relevant content. Description DVCC8086 16 microcomputer itself all the resources, but also on the design used in the volume of input and output device switches, digital tube display, and input-output interface chip and its associated drivers carried out a detailed explanation. Finally given a specific input-output applications, in order to learn how to conduct a complete input-output system design. (2008-03-29, WORD, 87KB, 下载4次)
基于FPGA的串行通信UART控制器，采用VHDL语言编写，包含多个子模块。
在ISE或FPGA的其它开发环境下新建一个工程，然后将文档中的各个模块程序添加进去，即可运行仿真。源程序已经过本人的仿真验证。
FPGA-based UART serial communication controller, using VHDL language, includes a number of sub-module. ISE FPGA or in the other developing a new environment, then documentation of the various modules of procedures added to it, will be running simulation. I have been the source of the simulation. (2006-09-10, WORD, 14KB, 下载428次)
這是一篇介紹藍芽收發器IC測試的相關文章,蠻有用的文章
introduced Bluetooth transceiver IC test of the article, the article is quite (2006-09-04, WORD, 88KB, 下载15次)
常用电脑硬件技术术语 包括cpu显卡，内存，主板，显示器，modem，扫描仪，打印机等多方面详细介绍，适合初学者
commonly used technical terms of computer hardware, including graphics cpu, memory, motherboards, monitors, modems, scanners, printers, etc. many details, suitable for beginners (2005-04-28, WORD, 44KB, 下载23次)