基于单片机制冷机的温控设计.doc

论文题目 本科毕业设计（论文） PAGE 2 PAGE I 摘 要 制冷机是我国目前各行业技术改造和进行设备引进所急需的配套设备，也是提高产品质量，企业升级的重要设备。而传统的测控方法由于从测量到显示采用模拟方式，数据采集速度慢，不具备实时性，抗干扰能力差。测量精度完全依赖于硬件特性。自单片机问世以来，与其相关的测控仪器也应运而生，尤其是数字测试技术与单片机的结合。单片机技术更是以其高效率，高精度，多功能的优势逐渐取代传统的测控方法。 本文就是利用单片机来控制制冷机从而达到控制温度的目的。在本设计中采用温度传感器AD590可实现温度采集，经A/D转换器ADC0809实现模拟-数字转换，然后送入单片机来实现整个设计的要求，可以实现时间，温度，故障代码显示等功能。本系统具有高精度，高灵敏性，高可靠性等特点。可以高速采集数据，具有实时性，并且具有很强的抗干扰能力和自动循环及自动诊断能力。 关键词：制冷机，AT89C51，AD590，温度控制 制冷机的温控设计 榆林学院本科毕业设计（论文） PAGE IV PAGE II ABSTRACT Efrigeration plane our country every profession and trade technological transformation carry on corollary equipment that equipments introducing need badly at present, Improve product quality , the important equipment which enterprises upgraded too. And the traditional one observes and controls the method and adopt the simulation way from measurement to showing, the data are gathered slowly, does not possess real-time character , anti-interference ability is bad. Measure the precision and totally rely on with the characteristic of the hardware. Since the one-chip computer comes out , arise at the historic moment too instead of relevant observing and controlling the instrument, especially the figure tests the combination of the one-chip computer of technology. The technology of the one-chip computer is with its high efficiency even more, high accuracy, the multi-functional advantage replaces the traditional method of observing and controlling gradually. This text utilize one-chip computer control refrigeration plane to purpose to achieve temperature control. Utilize temperature sensor AD590 to realize temperature is gathered in this design. Realized simulation- the figure is changed by converter ADC0809 of A/D. Give it comes to be whole without being realized demand that design to one-chip computer,can time, temperature now not real, such functions as the trouble code shows.This system has high accuracy, high sensitivity, such characteristics as high dependability ,etc.. Can gather the data at a hig