中国某电信公司电子商务平台分为两层：支撑层和业务层，支撑层为电子商务业务的开展提供支撑功能，包括认证系统、支付系统、移动终端安全系统以及整个电子商务业务的计费和...

程序开发规则范例文件,程序开发员必读保典-Examples of documents the development of rules of procedures, procedures developers must-read Yasunori

这个个系统是学生管理系统。利用SDK做界面，用双向链表做排序，功能简单，但是思路清晰，有不到指出多原谅-systems is the Student Management System. Do use SDK interface, so with two-way linked list, in order of functions simple, but clear ideas that are not more forgiving

Touch Panel Controller for CAR DVD with Sunplus

USB摄像头电路图片,电路简单,大家可以-circuit USB camera photographs, a simple circuit, we can try

此文详细介绍了h.264种熵编码算法的优化设计，取材比较前沿，内容新颖。-article details the h.264 types of entropy coding algorithm optimization of the design, drawing more forward, as novel.

摘要】 本文介绍了以AT89S51单片机为核心的温度控制器的设计,在该设计中采用高精度的温度传感器AD590对电热锅炉的温度进行实时精确测量,用超低温漂移高精度运算放大器OP07将温度-电压信号进行放大,再送入12位的AD574A进行AD转换,从而实现自动检测,实时显示及越限报警。控制部分采用PID算法,实时更新PWM控制输出参数,控制可控硅的通断时间,最终实现对炉温的高精度控制。 【关键词】 水温控制系统 PID控制单片机 温度控制是工业生产过程中经常遇到的过程控制,有些工艺过程对其温度的控制效果直接影响着产品的质量,因而设计一种较为理想的温度控制系统是非常有价值的。 一 系统设计方案的论证与比较 根据题目要求,电热锅炉温度控制系统由核心处理模块、温度采集模块、键盘显示模块、及控制执行模块等组成。-Abstract This paper introduces the single-chip AT89S51 temperature controller at the core of the design, in the design of high-precision temperature sensor AD590 temperature of the heating boiler accurate measurement of real-time, using ultra-low temperature drift, high-precision operational amplifier OP07 temperature Part of the use of PID control algorithms, real-time PWM control output parameter update and control the on-off Thyristor time, finally achieve the high-precision control of temperature. 【Key Words】 temperature control system PID control of single-chip Temperature control is the process of ind

programa en C/MPLAB en el que la puerta B está configurada como salida y conectada a unos LED que se encienden en funcion de lo que sale por ahí se hace uso también del puerto serie disponible en proteus-programa en C/MPLAB en el que la puerta B está configurada como salida y conectada a unos LED que se encienden en funcion de lo que sale por ahí se hace uso también del puerto serie disponible en proteus

依靠强大的专业开发团队、PHILIPS 半导体的领先技术与国际 CiA 协会、ODVA 协会的支持，我们致力于发展 中国的 CAN 产品与应用事业。至现在，我们已成功开发出一系列 CAN-bus 教学、接口、工具、应用产品，能够为客 户提供从“芯片”、“工具”、“模块”、“方案”等各个方面的服务，涉及 CAN-bus 多个行业与应用领域。我们自主开 发的数个型号产品已经领先于国外技术水平，并已投入广泛的实际应用。 CAN-bus 专 用 芯 片 -Rely on a strong professional development team, PHILIPS leading semiconductor technology and international CiA Association, ODVA Association, we are committed to the development of China

This folder contains two simple functions (zerocross and energy) to compute STE and STZCR. The script zcr_ste_so.m uses these two and other functions (included) to compute the STE and STZCR of the word so . See the respective function help for more details.-This folder contains two simple functions (zerocross and energy) to compute STE and STZCR. The script zcr_ste_so.m uses these two and other functions (included) to compute the STE and STZCR of the word so . See the respective function help for more details.

The development of a data acquisition card based on USB bus is introduced in this article.It first describes the configuration and principle of this card in the part of hardware design,and then the application program and device driver in the part of software design.Data acquisition program in firmware is also discussed.Finally,this data acquisition card is tested and evaluated in a program developed by Lab Windows CVI,which shows that this car is stable and reliable