针对RN8209新型电表计量芯片的校表软件，使用DLT645-2007通讯协议
RN8209 for new electricity metering chip calibration software, communications protocols using DLT645-2007 (2016-04-12, Visual C++, 498KB, 下载52次)
涵普校表台国网校表软件
适用于涵普单相、三相校表台，电表通信规约和校表流程可按需求修改。
Han Wang Xiao Pu calibration station States Han Pu table software for single-phase, three-phase calibration equipment, meter calibration process communication protocol and can demand changes. (2014-05-05, C#, 1917KB, 下载51次)
水泥厂的10路斗式配料程序，包括校称，除皮，缺料报警，卡料报警。在水泥厂使用很多。
The 10-way bucket cement batching procedures, including the school said that, in addition to skin, Queliao alarm, alarm card material. In the cement plants use a lot. (2010-01-03, DOS, 10KB, 下载50次)
自己以MSP430F149硬件开发板为依托c语言
写的定时时钟程序，可以实现准确时钟和智能校表功能
themselves to MSP430F149 hardware development board based on the C language to write regularly clock procedures, can achieve accurate clock and smart school function table (2006-06-04, C/C++, 2KB, 下载48次)
本程序是我校研制的75千瓦变频器完整程序，十分珍贵，调试已通过。方便大家学习使用.
This program is developed by our school 75 kw inverter complete procedures, is very precious, debugging has passed.Help you learn to use. (2015-11-30, C/C++, 1023KB, 下载43次)
VB写的智能电表校表程序，非常适合VB研发或者初学者，里面的通信很详细
VB to write smart meter calibration procedures, is ideal for beginners or VB development, which is very detailed communication (2011-10-05, Visual Basic, 166KB, 下载36次)
数电课程设计：电子时钟
设计一个数字电子钟,要求:
1. 时间以12或24小时为一个周期；
2. 正常显示时、分、秒；
3. 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；
4. 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；
5. 为了保证计时的稳定及准确须由晶体振荡器提供表针时间基准信号。
6. 完成闹钟功能。
Curriculum design for digital circuits: design of a digital electronic clock electronic clock, requires: 1. Time to 12 or 24 hours for a period 2. Normal display hours, minutes and seconds 3. Juyou timing function, respectively, and sub-time separate school, it corrected to standard time 4. timekeeping process has timekeeping function, the whole point when time reaches 10 seconds before the buzzer timekeeping 5. In order to ensure a stable and accurate timing by the time the crystal oscillator Biaozhen reference signal. 6. Complete the alarm clock function. (2011-05-30, Visual C++, 148KB, 下载36次)
GPS电波钟，51单片机完成GPS校时+电波校时，当GPS无信号时自动进行电波校时。
The GPS clock radio, 51 single-chip GPS school the+ airwaves school when no GPS signal automatically airwaves school. (2012-06-14, C/C++, 5KB, 下载35次)
电子闹钟
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
err (2008-12-08, VHDL, 2KB, 下载34次)
任务：设计并制作一个以单片机为核心的温度测控系统
设计要求：
①. 被测温度范围为0—100℃。温度测量误差范围小于5℃，能进行当前环境温度调校。
②. 测试问题通过4位LED数码管显示。
③. 温度下限 L为30℃，上限 H为50℃。当温度≥50℃时，模拟发光二极管全亮。当温度≤30℃时，模拟发光二极管全灭。当30℃≤温度≤50℃时，输出占空比=（H-t）/（H-L）。
④. 发挥部分：可按键设定温度下限值和上限值。
Task: Design and production of a microcontroller as the core temperature control system
Design requirements:
①. Measured temperature range of 0-100 ℃. Temperature measurement error less than 5 ℃, the temperature can be adjusted the current environment.
②. Test questions by four LED digital display.
③. L minimum temperature of 30 ℃, maximum H was 50 ℃. When the temperature ≥ 50 ℃, the simulation of all light emitting diodes. When the temperature ≤ 30 ℃, the simulation of light-emitting diode Quanmie. When 30 ℃ ≤ temperature ≤ 50 ℃, the output duty cycle = (Ht)/(HL).
④. To play a part: You can set the temperature button and the upper limit of the lower limit. (2010-05-07, C++ Builder, 1989KB, 下载33次)
飞思卡尔电磁组程序,a车校赛可跑，简单实用，适合初学者
Freescale electromagnetic group program (2013-06-13, Visual C++, 3KB, 下载33次)
本文件夹包含浙江大学信电系暑期电子设计培训时以及校赛时的几个项目的代码，包括波形发生器，集成运算放大器，简易数字显示声音信号采集测量仪的设计，数码管红外遥控显示，温度测量PWM模拟控制LED等。采用的单片机为凌阳SP061A单片机。
This folder contains a letter, Zhejiang University, Department of Electrical Electronic Design training in the summer and school event, when the time code for several projects, including waveform generator, integrated operational amplifier, simple digital display audio signal acquisition measuring instrument design, digital control infrared remote control display, temperature measurement PWM analog control LED and so on. Sunplus SP061A used for the microcontroller MCU. (2009-08-26, C/C++, 707KB, 下载33次)
数字系统设计报告，多功能电子钟，显示年月日星期时分秒，及校时等功能
Digital system design report, multi-functional electronic bell, show date when the minutes and seconds a week, and school functions when (2009-01-02, VHDL, 131KB, 下载33次)
71M6453程序代码 ，是3相智能电表源程序，有CE核，程序，有校表程序。稍微修改，可以变成一点校正
71M6453 program code, the source code is a three-phase smart meters, have CE core, procedures, calibration procedures. Slightly modified, can be turned into a one correction (2014-11-03, C/C++, 6894KB, 下载33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)
摘 要
本设计采用单片机（89S52芯片）为系统的控制核心。整个设计采用了模块化的设计思想，包括直流稳压电源模块、LED数码管显示模块、自动校零电路模块、采样电路模块、测量电路模块。
This system regards the request of the topic, adopting 80C51 for controlling core, (2009-08-26, WORD, 339KB, 下载31次)
用stm32实现的温度采集，使用芯片内部热敏电阻
Stm32 achieved using temperature acquisition, use chip thermistor (2015-08-13, C/C++, 3926KB, 下载29次)
多功能数字钟 能进行正常的时、分、秒计时功能, 分别由6个数码管显示24小时、60分钟、60秒钟的计数器显示。
2. 能利用实验系统上的按键实现“校时”“校分”功能：
3. 能利用扬声器做整点报时
VHDL (2009-10-23, VHDL, 1000KB, 下载29次)
可以用来参考RRN8302B校表设计，基于51系列单片机，可参考使用
Can be used for reference RRN8302B calibration design,Based on 51 series MCU, it can be used for reference. (2019-07-24, C/C++, 74KB, 下载28次)