qt使用实例

AT89C51+液晶显示屏，按输入字符输出相应的显示，源代码为C语言编写，希望对大家有帮助。(The LCD of AT89C51+ screen display output according to the input character, the source code is written in C language, we hope to help.)

我们设计的异步电机变频调速器以TMS320F28035芯片为控制核心，通过输出三相PWM波控制智能功率模块IPM驱动三相异步电机。我们使用空间矢量SVPWM算法，并对其进行了优化。采用异步电机无传感器测速算法省去了昂贵的光电编码器，大大节省了成本。同时开创性的研发了自动根据运行环境调节的自适应变频算法，使我们的变频调速器可以在电网条件恶劣的乡村山区工作，由此该变频器已被一家民用水泵生产企业预订。(We design the asynchronous motor frequency conversion governor with TMS320F28035 chip as the control core, and output three-phase PWM wave to control the intelligent power module IPM to drive the three-phase asynchronous motor. We use space vector SVPWM algorithm and optimize it. The sensorless speed measurement algorithm of asynchronous motor eliminates the expensive photoelectric encoder and greatly saves the cost. At the same time, pioneering research automatic conversion algorithm based on adaptive adjustment of the operating environment, we can make VVVF in power grid conditions of rural area, thus the inverter has been a civil pump manufacturer reservation.)

美国天宝公司TGO软件的GPS网平差程序的核心源代码,GPS软件开发必备(Trimbles TGO software for GPS network adjustment program source code, GPS software development, an essential)

简单的图形展示工具 给大家一个简单的思路(Simple graphical presentation tool to give us a simple idea)

ip地址数据库格式，便于开发使用,很清晰.(ip address database format to facilitate development and use, very clear.)

说明：  软件工程需求分析案例：中国外轮理货总公司OA系统用户需求说明书 中远信息科技有限公司 2007年3月 (Software engineering requirements analysis cases: China Ocean Shipping Corporation tally OA system user requirements specification COSCO Information Technology Co., Ltd. in March 2007)

超市进销存管理系统的源码。基于.NET平台，用到了SQL语言。(Purchase, Sales and Inventory Management System supermarket source. Based on. NET platform, use the SQL language.)

基于matlab的ofdm系统仿真源程序 qpsk调制与qam调制(matlab ofdm)

一个用于客户端和服务器端的客户端的简单程序，C#(one for the client and the server-client simple procedure, C#)

单片机控制数字电位器x9313的编程。本编程结合运算放大器设置成一个可调电源，通过单片机控制电位器的阻值修改电位器两端电压从而达到数控电源的效果。电压值可通过单片机外界LCD显示。(Programming of digital potentiometer X9313 controlled by mcu. This program is combined with operational amplifier set into an adjustable power supply, through the MCU control potentiometer resistance, modify potentiometer voltage at the end, so as to achieve the effect of numerical control power supply.Voltage value can be displayed by external LCD of mcu.)