[单片机开发] dianzizhong
功能全面的数字电子钟，proteus模拟实现，带有闹铃、校时等功能
Full-featured digital electronic clock, proteus simulation, with alarm, time ajustment and other functions (2011-06-19, Others, 30KB, 下载16次)
[单片机开发] clock
在EWB环境下搭建数字钟；有“时”，“分”，“秒”（23小时59分59秒）显示且有校时功能的电子钟；
中小规模集成电路组成的电子钟
EWB environment built in digital clock a " when" , " sub" , " second" (23 hours 59 minutes 59 seconds) shows a timing function and an electronic clock small and medium scale integrated circuits composed of clock (2011-06-10, Others, 848KB, 下载11次)
[GPS编程] system
GPS与北斗双模授时的压控晶振校频系统设计
GPS and Compass mode voltage-controlled crystal oscillator timing and frequency calibration system (2011-03-29, Others, 334KB, 下载21次)
[单片机开发] clock
clk： 标准时钟信号，本例中，其频率为4Hz；
clk_1k： 产生闹铃音、报时音的时钟信号，本例中其频率为1024Hz；
mode： 功能控制信号；为0：计时功能；
为1：闹钟功能；
为2：手动校时功能；
turn： 接按键，在手动校时功能时，选择是调整小时，还是分钟；
若长时间按住该键，还可使秒信号清零，用于精确调时；
change： 接按键，手动调整时，每按一次，计数器加1；
如果长按，则连续快速加1，用于快速调时和定时；
hour,min,sec ：此三信号分别输出并显示时、分、秒信号，
皆采用BCD码计数，分别驱动6个数码管显示时间；
alert： 输出到扬声器的信号，用于产生闹铃音和报时音；
闹铃音为持续20秒的急促的"嘀嘀嘀"音，若按住"change"键，
则可屏蔽该音；整点报时音为"嘀嘀嘀嘀-嘟"四短一长音；
LD_alert： 接发光二极管，指示是否设置了闹钟功能；
LD_hour： 接发光二极管，指示当前调整的是小时信号；
LD_min： 接发光二极管，指示当前调整的是分钟信号。
If long press, the continuous rapid plus 1 for quick adjustment and timing,
Hour-by-hour, min, SEC: this three signal output and display when respectively, minutes and seconds signal,
All USES BCD counter, respectively driven six digital pipe display time,
Where the signal to the speaker: output, used to produce make primitive and strike the sound,
Make businessis about for lasts 20 seconds the urgent "di di di" sound, if hold "information" key,
Then can shield the sound, Integral point to announce the sound as "di di di di- du" four short a drawl,
LD_alert: connect the light emitting diode, instruction set the alarm clock function whether
LD_hour: connect the light emitting diode, instructions, the current is to adjust the hour signal,
LD_min: connect the light emitting diode, instructions, the current is to adjust the minutes signal. (2011-03-04, Others, 2KB, 下载1次)
[单片机开发] RTC
①在6个不带锁存器的数码管上，实现时钟的动态显示；
②当时钟显示不准时，实现时钟的实时校时功能；
③实现在数码管上、电脑上同步显示实时时钟信号
① In the six non-digital pipe latches, dynamic display of the clock ② When the clock display are not allowed to achieve real-time clock when the function of the school ③ implemented in digital, the computer displays real-time clock synchronization (2010-11-01, Others, 8KB, 下载4次)
[RFID编程] 060115
就餐比较集中的学校基本上采用非接触式RFID卡组成的现场前台系统与微机后台管理系统相结合的形式。AT88RF020使用频率在13.56MHz的低端非接触式射频卡芯片,它遵循O/IEC14443TypeB协议。本文着重介绍AT88RF020的特点及工作原理,并对其在学校就餐管理中的应用及管理系统作相应介绍,同时也给出部分程序代码。由AT88RF020射频芯片组成的现场前台系统使用方便,价格低廉。
School meals are concentrated basically composed of non-contact RFID card systems and microcomputer front-site management system back in the form of a combination. AT88RF020 low-end frequency in the 13.56MHz contactless IC card chip, it follows O/IEC14443TypeB agreement. This article focuses on the characteristics and working principle of AT88RF020 and dining in the school management for its application and management system for the appropriate description, but also give part of the program code. AT88RF020 RF chips by the prospects of the system easy to use site, low prices. (2010-11-01, Others, 119KB, 下载3次)
[处理器开发] DigitalClocks
时间以12小时为一个周期；
能显示时、分、秒；
具有校时功能，可以分别对时及分进行单独校时，使其校正到标准时间；计时过程具有报时功能，当时间到达整点前10秒进行蜂鸣报时；
digital clocks (2010-07-02, Others, 1121KB, 下载4次)
[单片机开发] shuzi
设计一个采用数字电路实现,对时,分,秒.数字显示的计时装置,周期为24小时，显示满刻度为23时59分59秒，并具有校时功能和报时功能的数字电子钟。电路主要采用中规模集成电路.本系统的设计电路由脉冲逻辑电路模块、时钟脉冲模块、时钟译码显示电路模块、整电报时模块、校时模块等部分组成。采用电池作电源，采用低功耗的芯片及液晶显示器，发生器使用石英晶振、计数振荡器CD4060及双D触发器74LS74，计数器采用同步双十进制计数器74LS160，锁存译码器是74LS248，整电报时电路用74LS74，74LS32及扬声器构成。
Design a digital circuit, on the hours, minutes, seconds. Figures show that the timing device, 24-hour period, indicating full scale is 23:59:59 and the time with school functions and timekeeping functions of digital electronic clock. Scale integrated circuits used in the main circuit. The design of this system by the pulse logic circuit module, clock module, the clock display circuit decoding module, when the entire cable module, the campus module components. Using a battery powered, low-power chips and liquid crystal display generator using a quartz crystal oscillator, count of CD4060 oscillator and two D flip-flop 74LS74, two-decimal counter synchronous counter 74LS160, latch decoder is the 74LS248, the whole When telegraph circuits 74LS74, 74LS32 and loudspeaker (2010-06-13, Others, 439KB, 下载125次)
[网络编程] Computer_Networks_A_Systems_Approach
本书是计算机网络方面的经典畅销教科书，凝聚了两位顶尖网络专家几十年的理论研究、实践经验和大量第一手资料，自出版以来已经成为网络课程主流教材，被哈佛大学、斯坦福大学、卡内基一梅隆大学、康奈尔大学、普林斯顿大学、威斯康星大学、普度大学、得克萨斯大学、芝加哥大学等众多名校采用。
第4版秉承了前3版的特点，通过丰富的、基于实例的指导，来帮助读者理解计算机网络及其构件。全书的重点在于“为什么这样设计网络”——不仅详细叙述当今网络系统的组成，而且还阐述关键技术和协议如何在实际应用中发挥作用，从而解决具体的问题。
本书与传统网络教材最大的不同在于，不是按照OSI层次机械地介绍计算机网络，而是采用“系统方法”，将网络看成是交互式的复杂系统。每章开头都给出一些启发式的问题。引导学生或专业人员用新学到的知识来解决实际问题；同时，在每章的最后还会补充一些新的工具和资源，帮助读者巩固和加深所学知识，全面理解复杂网络及其应用的工作原理和工作方式。
When the first edition of this book was published in 1996, it was a novelty to be able to order merchandise on the Internet, and a company that advertised its domain name was considered cutting edge. Today, Internet commerce is a fact of life, and ".com" stocks have gone through an entire boom and bust cycle.A host of new technologies ranging from optical switches to wireless networks are now becoming mainstream. It seems the only predictable thing about the Internet is constant change. . . (2010-05-22, Others, 3195KB, 下载14次)
[GIS/地图编程] 3Dschool
校园三维景观建模及其飞行漫游的实现，以AUTOCAD格式的施工设计图为基础，利用三维可视地理信息系统软件Imagis2.3，通过数据的预处理、三维建模、纹理映射，建立了福建师范大学新校区理工楼群模型，并就有关技术问题进行了讨论。
Three-dimensional modeling and flight school to roam the landscape to achieve, to AUTOCAD format picture shows the basic construction design, using three-dimensional visualization of geographic information systems software Imagis2.3, through data pre-processing, 3D modeling, texture mapping, set up in Fujian Polytechnic University campus buildings in the new model, and on the technical issues were discussed. (2010-05-04, Others, 538KB, 下载5次)
[模式识别(视觉/语音等)] FaceRec_part4
由于本人最近研究人脸识别，收集的一些名校的博士硕士论文，全部是08年到09年的，具有很大的参考价值，如需要图像处理模式识别类的材料，请联系shuqin87@163.com
Because I study of face recognition has recently collected a number of prestigious doctoral master' s thesis, all of 2008 to 2009, and has great reference value, such as the need for image processing, pattern recognition type of material, please contact shuqin87 @ 163. com (2009-09-20, Others, 18629KB, 下载19次)
[模式识别(视觉/语音等)] FaceRec_part3
由于本人最近研究人脸识别，收集的一些名校的博士硕士论文，全部是08年到09年的，具有很大的参考价值，如需要图像处理模式识别类的材料，请联系shuqin87@163.com
Because I study of face recognition has recently collected a number of prestigious doctoral master' s thesis, all of 2008 to 2009, and has great reference value, such as the need for image processing, pattern recognition type of material, please contact shuqin87 @ 163. com (2009-09-20, Others, 24702KB, 下载12次)
[模式识别(视觉/语音等)] FaceRec_part2
由于本人最近研究人脸识别，收集的一些名校的博士硕士论文，全部是08年到09年的，具有很大的参考价值，如需要图像处理模式识别类的材料，请联系shuqin87@163.com
Because I study of face recognition has recently collected a number of prestigious doctoral master' s thesis, all of 2008 to 2009, and has great reference value, such as the need for image processing, pattern recognition type of material, please contact shuqin87 @ 163. com (2009-09-18, Others, 23750KB, 下载26次)
[其他书籍] WIRELESS_COMMUNICATIONS
本书是由Standford大学教授Andrea Goldsmith毕生所著的经典教材。现在仍为美国各大院校的通信工程专业必修课教材之一。
This book is written by Professor Andrea Goldsmith, Standford University for his life, and it is a classic textbook. Now it is one of the textbook for most of the institutions in the United States as the compulsory reading for communication engineering major. (2009-08-25, Others, 3188KB, 下载2次)
[认证考试资料] TestInsideCCNA640-802v14(252Q)
思科CCNA认证考试必备，一书在手，考试无忧，官方保证考过。
Cisco CCNA certification exam required, a book in hand, worry-free examinations, official test too. (2009-06-01, Others, 9411KB, 下载11次)
[企业管理] glxtxb
论文管理系统校版，绝对值得你的期待。希望大家有东西多多共享。
School version of paper management system is absolutely worthy of your expectations. Hope that we have shared many things. (2009-05-22, Others, 4794KB, 下载28次)
[单片机开发] digclock
有关数字钟的，实现校时报时功能，有源程序和波形图
failed to translate (2009-05-10, Others, 334KB, 下载4次)
[其他] jisuanjiwangluo
校园计算机网络已成为学校办学的基础设施和必备条件.公众信息电脑公司立足中国,服务教育.以开发教育软件和网络集成为主,推进教育教学信息化和现代化为主要经营方向的综合型企业. 经过广泛的市场调研,针对中等学校办学特点和应用需求,我公司开发出"中等学校千兆校园网整体解决方案".该方案以千兆主干网络为基础平台,以校园网应用为主线,以实现广泛的教育资源共享,提高教育教学的现代化水平为目的,为建设信息化学校提供了一个完整的解决方案.
校园网的信息点覆盖整个校园，教室、办公室和宿舍等地方都是十分开放的，很多人都可以自由出入这些地方，任何一个人都可以利用这些地方的信息点，通过便携连接到学校办公内部网，这将对校园网造成巨大安全隐患。全网接入采用统一认证技术，保证了只有合法授权的用户才能使用内部或外部网络，而且还能对网络的使用情况进行了审计 。
err (2008-12-31, Others, 83KB, 下载6次)
[文章/文档] 1
1.中国近代制度化教育兴起的标志是清朝末年的“废科举，兴学校”
2.六艺：礼，乐，射，御，书，数
1. China s modern symbol of the emergence of institutionalized education is the end of the Qing Dynasty s waste Keju, Hing School 2. The six arts: ritual, music, archery,御, books, a few (2008-12-10, Others, 3KB, 下载5次)
[教育系统应用] shuzizhong
基于matlab实现的可定时数字钟，带有校时功能，是我们的电子课程设计题目。
Matlab based on the realization of regular digital clock, with a school function, it is our e-course design topics. (2008-12-08, Others, 267KB, 下载2次)