数值分析全部课程设计,有了这让你的数值分析实验报告无忧.
Numerical analysis of a full course of design, with the numerical analysis of this so you lab report worries. (2010-06-30, C/C++, 722KB, 下载18次)
介绍一种利用卫星接收机接收的时间信号, 经单片机接收处理后进行自动校时的
数显时钟的设计
Introduction of a satellite receiver to receive time signal processing by the MCU after receiving automatic error correction design digital display clock (2010-06-16, C/C++, 131KB, 下载17次)
摘要
电能表作为用电量的测量工具广泛的应用于各种场合。在电能表校表系统中,需要的最基本的输入信号源是高精度双路正弦信号源,并要求可对其频率、相位、幅值进行调节,来对电能表进行校准。
基于单片机的程控信号源设计，运用数字调相、数字调幅和数字调频等技术，要求实现相位、幅度、频率的高精度程控调节。本文设计了一种利用锁相环频率合成技术和数字波形合成技术组成的程控低频正弦波信号发生器，并给出了调幅、调频、调相的实用电路，频率调节通过改变8253计数器的分频系数来实现；相位调节由51单片机预置计数器的计数初值来完成，幅度的调整通过改变DAC1210II的参考电压来实现，使频率分辨率达0.01Hz,相位调节精度达0.1°，并介绍电路中的主要芯的功能及使用。输出正弦波频率和幅值的精度高，稳定性好，失真度低，电路简单、可靠、便于程控。
关键词：数字合成信号源；程控；调幅；调频；移相；
Abstract
Meter consumption as the size of the measurement tool is widely used in various occasions. In single-phase power meter verify system, the most basic needs of the input signal is the source of two-way high-precision sine signal source, and may request its frequency, phase, amplitude in a certain step to adjust to the imitate of the actual electricity load with a right meter calibration.
Design of the programmable signal supply controlled source，which based on the MCU，including digital phase adjustment，distal amplitude adjustment，digital frequency adjustment etc．The system should achieve high quality digital adjustment of phase, amplitude and frequency. This paper describes the use of a PLL frequency synthesizer technology, and digital wave form synthesis technology consisting of program-controlled low-frequency sine wave signal issued devices, and applies the amplitude， frequency， phase of practical circuit. Frequency can be adjusted through a change in the 8253 counter-frequ (2010-06-05, C/C++, 373KB, 下载32次)
摘要
温度测量仪表是工业生产中常用的一种测量装置。对于配用热电偶的二次测温仪表,传统的检定方法是采用逐盘转动电位差计进行平衡读数, 然后查热电偶分度表求出误差,检定过程比较复杂。为了简化检定操作,方便现场检定,我们设计了新型的适用于mV 型测温仪表的检定仪。该检定仪利用AT89C51单片机, 将各种常用热电偶分度表固化在检定仪的EPROM 中,将毫伏发生器、调节器、显示器等组成一体, 具有操作简便、读数准确、功能强、重量轻、体积小等优点, 操作人员不必再查找热电偶分度表。该检定仪设有电势正负转换开关, 为具有零位补偿的测温仪表的零位检定与修理提供了方便，通过不同的按键，该仪表可以选择不同的热电偶分度号，进行校零和进入不同的工作状态。所以该型检定仪是一种非常适宜于现场使用的仪器。
关键词：检定仪；单片机；热电偶；线性化
Abstract
The temperature meter is one of the commonly used measuring devices in the industrial production. The traditional calibration method for going with the thermocouple’s temperature meter is looking up the thermocouple indexing table to extract the error after a balance reading through the plate rotation potentiometer. Obviously, the process of calibrating is too complex. In order to simplify the operations of the calibration and make the scene calibration more convenient, we have designed a new calibrator which is suitable for the mV temperature meter’s calibration. Such calibrator uses a AT89C51 single-chip computer to solidify each kind of commonly used thermocouple indexing table in the calibrator s EPROM, then the millivolt generator, the regulator, the monitor and so on will compose a body, which has the advantage of simple operation, accurate reading, strong function, light weight, small volume and so on. And the operators do not need to look up the thermocouple indexing (2010-06-05, C/C++, 218KB, 下载32次)
ADE7878校表常数及实际电参数计算方法V3.0
ADE7878 (2010-06-03, C/C++, 87KB, 下载219次)
圖像處理與視覺，一本非常好的書，很多的學校與單位都在當成參考書目，一般都是英文版，中文本是很難的的。
Image Processing, Analysis and Machine Vision (2010-05-27, C/C++, 41823KB, 下载41次)
本程序对初学者非常好的1602校时数字时钟
School for beginners in 1602 when the digital clock (2010-05-24, C/C++, 16KB, 下载23次)
DUT系列数据采集模块将温度传感器（热电阻，热电偶等）的输出信号或电流、电压直接转换成数字量，通过RS-485总线及标准通信协议将数据传送给主机。在模块上由89C51单片机管理模块自动工作，通道转换、ADC启动、采集数据、参比端补偿（热电偶）、引线电阻补偿（热电阻）、数字校零、非线性校正和数据处理等，均由单片机完成，主机仅在需要数据时，发送读取数据命令，模块给出已经线性化了的温度的数字量。通讯协议兼容台湾研华ADAM4000系列和松下PLC的通讯协议，可以与大多数组态软件直接连接，不需要额外的驱动程序，技术人员不需要有温度检测专门知识和编程能力即可使用。本产品主要用于各种现场的数据采集和控制系统。
DUT Series data acquisition module temperature sensor (RTD, thermocouples) De Shuchuxinhao or the current, voltage directly into Shuzi amount, via RS-485 bus, and data transfer standard communication agreement Ji Zhu Ji. 89C51 microcontroller in the module by the management module automatically, channel conversion, ADC start, collecting data, reference junction compensation (TC), lead resistance compensation (thermal resistance), digital calibration, linear calibration and data processing by the MCU to complete, the host only needs the data to send read data command, the module has been given a linear temperature of the digital. Communication protocol compatible with Advantech ADAM4000 series and the Panasonic PLC s communication protocol, can be directly connected with most of the configuration software, no additional drivers, technicians do not have temperature sensing capabilities and programming expertise to use. This product is mainly used for a variety of field data acquisition a (2010-05-10, C/C++, 3463KB, 下载106次)
这是一个游戏综合程序。情节是男学生在网络聊天时候认识一女生，然后男生在学校中寻找女生离开网络的原因。 程序来自《c游戏编程从入门到精通》
This is a game integrated program. Plot is the male students in the network know when a girl chat, then boys in the school girls to leave the network to find the reason. Program from the " c game programming from entry to master" (2010-05-09, C/C++, 429KB, 下载2次)
基于89c51的电子时钟设计，可对时，分，秒分别进行校时，复位等功能。
89c51 based design of electronic clock, may hours, minutes, seconds, school respectively, the reset function. (2010-05-09, C/C++, 1KB, 下载4次)
这是四川大学 2009年校赛初赛的题目 可以给小菜做一下 其实还是有点难度的
This is a school of Sichuan University in 2009 the subject of the preliminary round game to the side dishes can do something a little bit difficult but it is still (2010-05-03, C/C++, 1KB, 下载2次)
一个单片机全面检测软件，硬件为无忧开发网里面的ELITE_III
A microcontroller-round detection software (2010-03-27, C/C++, 113KB, 下载4次)
Microsoft Techniques for Developing Bug-free C
Programs
Steve Maguire 著
姜静波 佟金荣 译
麦中凡 校
电子工业出版社
Microsoft Techniques for Developing Bug-free C Programs Steve Maguire Tong Jin-Rong Jiang Jingbo the translation of Mai in the school where the Electronics Industry Press (2010-03-24, C/C++, 166KB, 下载1次)
这个学期在学校的作业，小游戏 贪吃蛇。C语言编辑
snake (2010-03-16, C/C++, 32KB, 下载3次)
本项目设计采用了6位数码管显示电路，在设计6位LED显示时，为了简化电路，降低成本，采用动态显示的方式，6个LED显示器共用一个8位的I/O，6位LED数码管的位选线分别由相应的P2.0--P2.5控制，而将其相应的段选线并联在一起，由一个8位的I/O口控制，即P0。译码显示电路将“时”，“分”，“秒”计数器的输出状态经显示译码器译码，通过6位LED七段显示器显示出来。达到定时电路时根据计时系统的输出状态产生的一个脉冲信号，然后去触发蜂鸣器发生器来实现闹铃。校时电路是用来对“时”，“分”，“秒”显示数字进行校对调整的。压缩文件中的仿真文件可以用Proteus查看。
The project was designed with six digital tube display circuit, in the design of six LED display, in order to simplify the circuit, reduce costs, dynamic display mode, 6 LED displays share one 8-bit I/O, 6 Wei LED Digital Choice of line pipe by the corresponding P2.0- P2.5 control, whereas the corresponding segment of its alignment parallel together by an 8-bit I/O port control, that is, P0. Decode display circuit will be "time", "sub", "seconds" counter output state by the display decoder decoding, through the six LED seven-segment display is displayed. To achieve timing circuit timing system according to the output of the state generated by a pulse signal, and then to trigger generator to achieve the alarm buzzer. The school when the circuit is used to "time", "sub", "seconds" display figures proofreading adjusted. Compressed file in the simulation files can be used Proteus view (2010-03-08, C/C++, 21KB, 下载12次)
基于DL-645规约实现单相电表校表功能的源代码程序。
DL-645 based on the Statute of the table for single-phase meter function of the source code of the school program. (2010-03-08, C/C++, 3KB, 下载90次)
基于stc89c52实现具有校时模式、定时模式，能够显示月、日、星期等功能的电子钟。
When the realization of the school-based stc89c52 mode, timing mode, can display month, day, week, and other functions of the electronic clock. (2009-12-17, C/C++, 8KB, 下载5次)
包含了HCS08系列单片机的编程实例，如ADC,CAN,PWM,SPI,SCI,一般应用都包含全了，开发无忧
HCS08 series microcontroller includes programming examples, such as ADC, CAN, PWM, SPI, SCI, include all general application, and development of worry-free (2009-10-28, C/C++, 3602KB, 下载452次)
用c语言写的一个校运会管理程序，功能比较完善。文件存储方式！
Using c language written in a management program for school athletic meets and functions have improved. File storage mode! (2009-09-15, C/C++, 137KB, 下载6次)
这个是linux下ntp服务的源代码，版本是4.2.4p7，包括server和client。
This is the linux source code under the ntp service, version 4.2.4p7, including the server and client. (2009-08-31, C/C++, 3303KB, 下载246次)