1、 毕毕 业业 设设 计计 题题 目：目： 多回路智能温控仪多回路智能温控仪 院院 系：系： 电气与电子工程学院电气与电子工程学院 姓姓 名：名： 指导教师：指导教师： 系系 主主 任：任： 2014 年年 6 月月 19 日日 I 多回路智能多回路智能温控仪温控仪 摘摘 要要 随着单片机技术的飞速发展，单片机在各个领域得到了广泛的应用。本设计的多回 路温控仪是应用于对粮库的温度控制，粮食是人类生存的必需品，而温度是保存好粮食 的先决条件。粮库一般较大，测量点会很多。因此需要对多点的温度进行巡回检测，鉴 于此目的，本论文针对粮仓设计了多回路温控仪。 本设计采用 AT89C51 为主控制芯片，以
2、AD590 为温度传感器，通过 ADC0809 采集 了各个温度点的温度，利用 LCD1602 液晶显示器形象直观的显示出测量的温度值，再通 过单片机对于电机及加热丝的控制将粮仓温度控制在保存粮食最佳的温度 5 到 15，以 实现多路温度显示、报警、控制等功能。本文在确定法设计方案基础上，着重论述了系 统的软硬件设计，并且描述了系统电路设计、硬件设计框图及所使用各种芯片功能和特 性且通过 PROTEUS 软件仿真出了该系统，本设计设计简单，抗干扰能力强，可广泛的应 用于各种温度控制系统。 关键词关键词: : AT89C51; AD590; ADC0809; 温度控制 II Based On 5
3、1 Single-Chip Multi-loop Temperature Controller Abstract With the rapid development of chip technology, the microcontroller in various fields has been widely used. The design of the multi-loop temperature controller is used in temperature control applications for grain storage, food is a necessity f
4、or human survival, and the temperature is a prerequisite for saving good food. Grain generally larger, measuring a number of points will be. Hence the need for multi-point temperature tour detection, in view of this, the thesis granary multi-loop temperature controller is designed. This design uses
5、AT89C51 main control chip to AD590 temperature sensor, temperature collected by ADC0809 each temperature point, the use of visual image LCD1602 LCD display shows the measured temperature, and then through the microcontroller for motor control of the heating wire Granary optimum temperature control i
6、n stored grain temperature , in order to achieve multi-channel temperature display, alarm and control functions. In this paper, the design is determined on the basis of law, focuses on the hardware design of the system, and describes the system circuit design, hardware design diagram and the use of various functions and features of the chip, and by PROTEUS software simulation of the system. Keywords: AT89C51; AD590; AD
