1、 I 基于单片机的温度控制系统设计基于单片机的温度控制系统设计 摘摘 要要 随着国民经济的发展，人们需要对各中加热炉、热处理炉、反 应炉和锅炉中温度进行监测和控制。采用单片机来对他们控制不仅 具有控制方便，简单和灵活性大等优点，而且可以大幅度提高被控 温度的技术指标，从而能够大大的提高产品的质量和数量。 本设计采用无 ROM 的 8031 作为主控制芯片。8031 的接口电路 有 8155、2764。8155 用于键盘/LED 显示器接口，2764 可作为 8031 的外部 ROM 存储器。 其中温度控制电路是通过可控硅调功器实现的。 双向可控硅管和加热丝串联接在交流 220V，50HZ 交流
2、试点回路，在 给定周期内，8031 只要改变可控硅管的接通时间便可改变加热丝功 率，以达到调节温度的目的。 关键字：温度控制；接口电路；可控硅 II DESIGN OF TEMPERATURE CONTROL SYSTEM BASED ON SCM ABSTRACT Along with national economy development, the people need to each heating furnace、the heat-treatment furnace、in the reactor and the boiler the temperature carry on the
3、 monitor and the control. Not only uses the monolithic integrated circuit to come to them to control has the control to be convenient, simple and flexibility big and so on merits, moreover may enhance large scale is accused the temperature technical specification, thus can big enhance the product th
4、e quality and quantity. This design uses non-ROM 8031 to take the master control chip. 8031 connection electric circuits have 8155、 2764.8155 uses in the keyboard /LED monitor connection, 2764 may take 8031 exterior ROM memories,one temperature-control circuit is adjusts the merit realization through the silicon-controlled rectifier. The bidirectional silicon-controlled rectifier tube and the heater series connection in exchange 220V,50HZ exchange city electricity return route, in assigns
