本系统主要以沈阳黄页业务管理为基本要求，主要功能包括：1. 业务员及业务经理权限的设定。2. 业务员部门的划分。3. 业务员在线录入信息。4. 企业公告版。5....

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

33个毕业论文,每个都带有详细的设计方案,还附带部分程序源码,对那些未毕业设计发愁的同学很有帮助,拿去看吧,不用愁了-33 thesis, each with a detailed design, source code is also attached to some of the procedures, designed for those who did not worry about the students graduating from helpful, look away, do not worry about the ...

helicopter modle paper from nu

Relay driving basics you can use it as a good reference

Dopod 838官方拆机及维修手册,很详细的说明，照着他一步一步拆，很简单的，我的手机坏了就是照他拆了修的。-Dopod 838 official TBM Break-down and maintenance manual, a very detailed explanation, he told a step-by-step demolition very simple, I had a bad cell phone as he was taking off the surface.

移动MISC平台接口规范。包括短信和其他业务的订购关系以及其他内容。-the Standard of ChinaMobile Misc System. It include the ordering relations of sms and other product and other content.

TI的TMS320F2812有一个弊病就是所提供的ADC转换模块的AD转换不准确，本文档提供了其官方的矫正方案。-TI"s TMS320F2812 a malady is provided by the ADC conversion module to the AD for inaccurate, the document provides a corrective its official program.

plc梯形图算法,语句表和梯形图的互译,WWW.CHINA-PLC.COM/BBS提供-plc ladder algorithm, the statement tables and ladder diagram of Translation, provide WWW.CHINA-PLC.COM/BBS

S3C2443 Power Management

嵌入式WEB服务器的设计！！对嵌入式网卡开发有参考价值！-The design of embedded WEB server! ! Development of embedded network adapter reference value!