四旋翼飞行器实验室PX4FLOW光流传感器的安装说明，以及调试，适合新手入门。
Four rotor aircraft laboratory PX4FLOW optical flow sensor installation instructions, and debug, suitable for beginners entry. (2015-12-16, WORD, 3269KB, 下载117次)
校园网络规划，包括设计文档以及思科模拟器的pkt文件，非常详细。
Campus network planning, including the design document and the CISCO simulator pkt file, very detailed. (2015-06-18, WORD, 855KB, 下载134次)
本文设计了一种非接触测量体温计。该体温计利用GE公司的红外热电堆温度传感器ZTP-101L实现对温度信号的非接触测量。微弱的电压信号放大采用低失调、低漂移、高精度的集成仪用运算放大器AD620。模数转换用自带ADC的16位单片机MSP430F149。本文从硬件技术和软件方法上详细阐述了该仪器的实现手段
Design a non-contact measurement thermometer. ZTP-101L, the thermometer using GE infrared thermopile temperature sensor, non-contact measurement of temperature signal. Integrated instrument weak voltage signal amplification with low offset, low drift, high-precision operational amplifier AD620. Analog-to-digital converter with their own 16-bit microcontroller ADC the MSP430F149. This article from the elaborate means of achieving the instrument hardware and software methods (2013-01-19, WORD, 411KB, 下载98次)
卡西欧计算器
9750gii升级为9860gii升级包（完整os和升级工具）
Casio Calculator 9750gii upgrade for 9860gii upgrade package (full os and upgrade tools) (2012-05-27, WORD, 1349KB, 下载6次)
本文介绍了基于PCI接口的500 MHz高速数据采集系统的设计。该系统采用高速FPGA和大容量存储器对高速采集后的海量数据进行缓冲和存储，通过PCI接I=l电路实现和主机的通信。另外还详细介绍了PLX公司的一款先进的总线控制PCI9054的特性、总线操作方式和DMA操作等功能，及其在PCI接口电路中的具体应用，从而提供了一种简便而高效的PCI接口电路实现方法。
This article describes a design based on the PCI interface, 500 MHz high-speed data acquisition system.The system uses high-speed FPGA and high-capacity memory buffering and storage of vast amounts of data in high-speed acquisition, and then I = l The circuit and the host communication through PCI. Also details the PCI9054 of PLX an advanced bus control function of the characteristics of bus operation and DMA operation, and its specific application in the PCI interface circuit, which provides a simple and efficient PCI interface circuit implementation. (2012-04-19, WORD, 253KB, 下载50次)
维纳滤波器的原理及实现,有详细的推导过程
Principle and realization of the Wiener filter, a detailed derivation (2012-04-08, WORD, 108KB, 下载16次)
是一本有关单片机应用与实践的实验操作书，是单片机爱好者入门的操作的好例子，并包含源程序和相应的电路图
主要内容：
1.实验电路板介绍，功能及特点
2. MCS-51单片机及其开发系统（仿真器）的认识， MCS-51 I/O引脚输入/输出，外中断实验，LED显示与定时中断，I/O口扩展与定时器T2中断，I/O扩展与键盘接口电路，并行通信及MCS-51与并行打印机接口，点对点串行通信，I2C总线，PCF8536使用，无线解码，LCD的使用，SPI的通信，ISD4000系列语音芯片的使用
Is a microcomputer application and practice of the experimental operation of the book, is a single chip lovers a good example of the operation started, and includes source code and the corresponding circuit main elements: 1. Experimental circuit board description, features and characteristics 2. MCS-51 SCM and development system (simulator) knowledge, MCS-51 I/O pin input/output, and interrupt test, LED display and timer interrupt, I/O port expansion and Timer T2 interrupt, I/O expansion and keyboard interface circuit, parallel communication, and MCS-51 and parallel printer interface, point to point serial communication, I2C bus, PCF8536 use, wireless decoding, LCD use, SPI communication, ISD4000 series voice chips use (2010-07-21, WORD, 1245KB, 下载19次)
基于单片机的智能低压电动机综合保护器的研究——硬件设计
Based on microprocessor integrated low voltage motor protection device studies- hardware design (2010-05-12, WORD, 176KB, 下载96次)
容栅传感器的协议和51程序,是汇编程序，这个网站很烦
Capacitive sensor protocols and 51 procedures, assembler (2010-01-26, WORD, 23KB, 下载17次)
三轴加速度传感器的应用,详尽说明计步器的算法原理
3D acceleration sensor of the PDF, a detailed description of the algorithm pedometer. (2009-07-20, WORD, 192KB, 下载664次)
光电耦合器的几个应用实例，用PROTEUS软件进行仿真验证和分析。
Optocoupler several application examples, the PROTEUS simulation software and analysis. (2009-07-01, WORD, 16KB, 下载72次)
SNMP操作手册，目 录
一 SNMP协议概述 2
1 什么是SNMP协议 2
2 SNMP版本 3
3 SNMP的基本操作 4
4 网管站和代理 5
5 ASN.1和SMI 5
6 SNMP报文 7
6.1 SNMP的5种协议数据单元 7
7 管理变量的表示 11
8 SNMP的运行过程 11
8.1 GETREQUEST PDU 12
8.2 GETNEXTREQUEST PDU 12
8.3 GETRESPONSE PDU 14
8.4 SETREQUEST PDU 14
8.5 TRAP PDU 14
9 SNMP MIB编译器的功能 15
二 SNMP操作实例 17
1 说明 17
2 SNMPV1测试 17
3 SNMPV2测试 21
4 SNMPV3测试 26
4.1 基于“NOAUTHNOPRIV”的安全模式的SNMPV3测试 26
4.2 基于“AUTHNOPRIV”的安全模式的SNMPV3测试 32
4.3 基于“AUTHPRIV”的安全模式的SNMPV3测试 37
SNMP Operation Manual, directory SNMP protocol outlined in 21 1 What is the SNMP protocol 22 SNMP version of the basic operation 33 SNMP management stations and 44 agents 55 ASN.1 and SMI 56 SNMP Message 5 of 76.1 SNMP Protocol Data Unit 77 management variables 118 SNMP express running process 118.1 GETREQUEST PDU 128.2 GETNEXTREQUEST PDU 128.3 GETRESPONSE PDU 148.4 SETREQUEST PDU 148.5 TRAP PDU 149 SNMP MIB compiler for SNMP operation features 15 two examples of 171 test 172 SNMPV1 note 173 SNMPV2 test 264.1 based on 214 SNMPV3 test (2008-04-11, WORD, 1062KB, 下载512次)
本文研究论述了基于S3C2410 LCD控制器的Linux驱动程序设计与实现，介绍了S3C2410的LCD控制器的数据和控制管脚，并给出了LCD的控制流程和LCD的控制器设置规则，参照TFT-LCD LQ092Y3DG01的逻辑要求和时序要求设计了其驱动电路，设置了主要LCD寄存器；论述了在嵌入式Linux中基于FrameBuffer机制的LCD驱动程序的实现方法。主要研究了Linux帧缓冲设备驱动程序框架，详细分析了帧缓冲设备驱动程序层次结构、核心功能模块和数据结构，设计了FrameBuffer的处理机制以及底层驱动的接口函数针对具体的LCD面板如何在嵌入式Linux中编写帧缓冲设备的驱动程序。最后在FrameBuffer机制的基础上，基于三星公司S3C2410处理器的开发平台系统地开发了嵌入式Linux下的LCD显示驱动程序，实现了简单的嵌入式GUI图形API的设计，并在LQ092Y3DG01上显示了清晰稳定的图像和汉字。测试表明该驱动通用性好，能驱动大部分的LCD；可移植性强，经过少许修改即可应用在其他嵌入式系统中，是S3C2410驱动LCD的一套较佳的解决方案 (2007-08-17, WORD, 151KB, 下载602次)
http://www.pudn.com/Download/item/id/320300.html
基于MCS-51单片机的数字钟设计
[摘要] III
[ABSTRACT] IV
引言 1
1绪论 2
1.1 集成电路 2
1.2 主要技术的背景 2
1.2.1 发展历史 2
1.2.2 现状 3
1.2.3 发展趋势 3
2器件简介 4
2.1 LED显示器 4
2.1.1 LED显示器的结构 4
2.1.2 LED的接线形式 5
2.2 AT89C52简介 5
2.2.1 AT89C52主要性能参数： 5
2.2.2 AT89C52单片机的功能特性概述： 6
2.3 DS1302芯片 9
2.3.1 DS1302的性能特性： 9
2.3.2 DS1302数据操作原理 10
2.4 74LS164－八位移位寄存器 14
2.4.1 74LS64简介 14
2.4.2 74LS164逻辑介绍： 15
3硬件电路 17
3.1 线路的设计 17
3.1.1 电源转换模块 18
3.1.2 主控制模块 18
3.1.3 显示模块 19
3.1.4 键盘接口设计 20
3.2 电路图的绘制 20
3.3 电路板的焊接 20
3.4 打开电源前应注意的问题 20
4软件设计部分 21
4.1 阳历程序的设计 21
4.2 时间调整程序设计 21
4.3 阴历程序设计 23
5调试 28
6小结 29
7致谢 30
8参考文献 31
9附录 32
based on MCS-51 microcontroller design of the digital clock III [Abstract] [ABSTRACT] IV INTRODUCTION Introduction 2 1 1 2 1.2 1.1 IC main technical background history 1.2.1 2 2 1.2. 1.2.3 Situation 2 3 3 2 trends Device Profile 4 2.1 4 LED Displays 2.1.1 LED Display The structure of the four 2.1.2 Connection form LED 5 2.2 5 2.2.1 Introduction AT89C52 AT8 9C52 main performance parameters : 5 2.2.2 AT89C52 outlined in the functional properties : 6 2.3 9 2.3.1 Chip DS1302 DS1302 performance characteristics : 9 2.3.2 DS1302 data operation principle 10 2.4 74LS164-8 shift register 14 74LS64 14 2.4.1 Introduction 2.4.2 74LS164 logic presentations : 15 3 17 3.1 hardware circuit design lines 17 Power Conversion Module 3.1.1 3.1.2 Main Control 18 Module Module 18 3.1.3 3.1.4 keyboard interface 19 (2007-05-18, WORD, 223KB, 下载558次)
本文介绍了如何使用RTL8019+51内核单片机来实现嵌入式Web服务器，文章包括硬件电路设计、协议的实现、调试的方法、程序的调度。本文对于进行轻量级TCP/IP协议开发的设计人员有很强的指导意义。本文所述Web服务器的源代码请参考本人上传的“TcpIpOn8051.rar”。
This paper describes how to use the RTL8019 51 MCU kernel to achieve Embedded Web server, The article includes hardware circuit design, the realization of the agreement, testing methods, and procedures of scheduling. This article about a lightweight TCP/IP protocol development of the design staff has a strong guiding significance. This paper described the Web server source code reference, I uploaded "TcpIpOn8051.rar." (2007-01-31, WORD, 2604KB, 下载730次)
关于如何实现Gabor小波变换的文章,对于想亲自动手实现Gabor小波变换的朋友非常有用.
on how to achieve Gabor wavelet transform article, want to personally get involved to achieve Gabor wavelet transform friends very useful. (2006-11-14, WORD, 54KB, 下载505次)
飞行控制系统方案。整个系统由传感器组、飞控计算机、任务管理计算机、舵机、表决电路等主要部件和电源、外总线、通信设备、地面站等辅助设备组成。无人机、起落架、发动机、任务设备、燃油系统、环控系统等是被监控对象。其中，关键传感器采用相似或者非相似三余度；飞控计算机采用“主备备”式三余度飞控机算机；舵机采用二余度电动舵机；表决逻辑由高可靠性单余度数字逻辑电路和双路开关实现。
Flight Control System program. The entire system is composed of sensors, the flight control computer, task management computer, steering gear, the division circuit components and the main power source, Foreign bus, communications equipment, ground support equipment components. UAV, landing gear, engine, mission equipment, fuel systems, environmental control systems are monitoring targets. Among them, critical sensor similar to three or similar non- I; The flight control computer "equitable preparations," I was three-flight control machine; Rudder I was using two electric steering; vote by the logic of high-reliability and redundancy digital logic circuit and a two-way switch. (2006-11-12, WORD, 566KB, 下载636次)
这是一个好的建模学习资料,赶快下载吧,
数学建模十大算法 ( 包含:蒙特卡罗算法、数据拟合、参数估计、
插值等数据处理算法、线性规划、整数规划、多元规划、二次规划等规划类问题、
图论算法、动态规划、回溯搜索、分治算法、分支定界等计算机算法、
最优化理论的三大非经典算法：模拟退火法、神经网络、遗传算法、
网格算法和穷举法、一些连续离散化方法、数值分析算法、图象处理算法）
This a good model to study the information, download it quickly, mathematical modeling algorithm 10 (includes : Monte Carlo algorithm, data fitting, parameter estimation, interpolation of data-processing algorithms, linear programming, integer programming, diversity planning, Quadratic Programming category of zoning, graph-theoretical algorithms, dynamic programming, retroactive search, the partition algorithm, branch-and-bound algorithm computer, most optimization theory of the three non-classical algorithm : simulated annealing, neural networks, genetic algorithms, mesh algorithms and exhaustive, some consecutive discrete method, numerical analysis algorithms, image processing algorithm) (2006-06-01, WORD, 5790KB, 下载4564次)
射频RF读卡器的设计电路（印制板和原理图）
RF circuit design of the slots (PCB and schematic) (2006-03-22, WORD, 80KB, 下载597次)
华为 Quidway 系列多协议路由器，支持 PPP、FR、X25、SLIP、HDLC 等网络协议，用户可通过各种广域网线路接入 Internet 及互联互访。 路由器内置安全防火墙、NAT、RADIUS 安全认证，以及 CALL BACK 等多项互联安全防护功能；并通过 CA 认证协议的验证和 IPSec 隧道协议，在 Internet 上构建安全可靠的网络通道，基于硬件的数据加密，将保密数据加密后在隧道上传输，加密数据有可靠的保密性但牺牲了效率；非保密数据可以通过一般性安全处理在隧道上传输，保证较高的转发速率。硬件加密的算法采用专门的芯片（经过国家相关部门批准）进行加密，密钥长度大于 128 位，并提供高强度的一次一密功能。配合完全自主知识产权的软硬件平台，提供网络的安全互联和数据的安全传输的安全解决方案。 而 "备份中心"的可靠性备份解决方案，实现多种线路之间的任意备份和业务分担，为网络提供业界最坚固的保护屏障，保证网络的可靠运行。
Huawei Quidway series of multi-protocol routers to support PPP, FR, X25, SLIP, HDLC and other network protocols, users can through various WAN lines and Internet access to the Internet visits. Built-in security firewall router, NAT, RADIUS authentication, and a number of other CALL BACK Internet security protection functions; And through CA and validation of the agreement IPSec agreement on the Internet to establish a secure and reliable network access, hardware-based data encryption, data encryption confidentiality the tunnels on the Tunnel, a reliable data encryption confidentiality expense of efficiency; non-confidential data can be handled through the general security on the transmission tunnel to ensure a higher rate of transponders. Hardware encryption algorithm using specialized chi (2005-03-19, WORD, 80KB, 下载836次)