| 基于STC89C52的自动水温控制系统设计与实现 |
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| 引用本文： | 李昌禄,李海宾,李希茜. 基于STC89C52的自动水温控制系统设计与实现[J]. 实验科学与技术, 2014, 12(5): 25-27 |
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| 作者姓名： | 李昌禄 李海宾 李希茜 |
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| 作者单位： | 天津大学电气电子实验中心,天津,300072 |
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| 摘 要： | 文中以单片机STC89C52为控制核心,单线数字温度传感器DS18B20构成前置信号采集电路,固体继电器SSR构成后向控制电路,根据分段控制的思想简化复杂的增量型数字PID算法,对加热系统的水温进行控制。目标温度可在30℃~80℃范围内任意设定,静态误差小于1℃。经过实验测试,系统运行稳定,控制效果良好。
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| 关 键 词： | 水温控制 STC89C52单片机 DS18B20温度传感器 PID算法 |
Circuit Design and Implementation of Water Temperature Control System Based on STC89C52 |
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| LI Changlu,LI Haibin,LI Xixi. Circuit Design and Implementation of Water Temperature Control System Based on STC89C52[J]. Experiment Science & Technology, 2014, 12(5): 25-27 |
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| Authors: | LI Changlu LI Haibin LI Xixi |
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| Affiliation: | ( Experimental Center of Electrical and Electronic Technology, Tianjin University, Tianjin 300072, China) |
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| Abstract: | The system takes the STC89C52 SCM as its controlling core. Its hardware mainly consists of two parts. The single digital temperature sensor DS18B20 constitutes a pre -signal acquisition circuit, while the back controlling circuit is mainly composed of the SSR solid - state relay. The system controls the temperature of the water with an arithmetic named Proportion - Integra - Derivative （PID）. The temperature can be discretionarily set in the work region, which is from 30℃ to 80℃. In our system the static error can be limited in 1 centigrade. Through experiment analysis, the system works stably and controls well. |
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| Keywords: | temperature control STC89C52 single chip DS18B20 temperature sensor PID controlling arithmetic |
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