浅谈温控电动喷灌的研制 毕业论文.doc

　　浅谈温控电动喷灌的研制 毕业论文 浅谈温控电动喷灌的研制 毕业论文导读：......................................125.3测量结果........................................................................................................126设计总结..................................................................................................................13浅谈温控电动喷灌的研制 毕业论文(2)导读：地，花坛，林地等需要温度控制和湿度调节于一体的情况为前提，在经济，直观，实用的基础上实现温度控制喷灌，以求达到精确感应温度，控制温度的目的。延伸来讲，更可以用之控制田地，花坛，林园等的湿度，这对于合理利用水资源，有着相当不错的效果。相对于传统的浇灌，手动的喷灌，温控电动喷灌都有着明显的优势。而此次选择温控电动喷灌 . 16 附录A .......................................................................................................................... 17 附录B .......................................................................................................................... 18 附录C .......................................................................................................................... 18 附录D ............................................................................................................................................. 19 温控电动喷灌系统设计 摘要 本设计是以AT89S52 单片机为控制核心的温控系统。该系统由温度传感器18B20对温度进行采集并传送给单片机，温度实时控制采用增量型PID算法，通过脉宽调制控制电动喷头的开关，然后通过电控喷头向外喷水，达到温度控制喷灌，然后利用喷灌调节温度的系统循环需求。该系统具有温度超调量小、调节时间短、静态误差小、测量精确、恒定温度与设定温度偏差小等优点，且采用键盘控制1602液晶显示，控制方便、显示直观。同时该系统操作容易，性价比高的特点。 关键词 温度控制;增量型PID算法;超调量;调节时间 The Design of Temperature-control Electric Sprinkling Irrigation Device Abstract This design is the core of AT89S52 SCM control system for control. This system consists of the temperature sensor of temperature 18B20 collection and send it to the microcontroller, temperature real-time control adopts PID algorithm increment, through the pulse odulation control electric shoperature control system of irrigation adjust temperature cycle demand. The system has a temperature small overshoots and short setting time, static error is smaller, measurement precision, constant temperature and setting temperature deviation adopted, and the advantages of small keyboard control 1602 LCD display, control