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課程設(shè)計(jì) 溫度自動(dòng)控制系統(tǒng) 共18頁，8680字
摘 要：結(jié)合自動(dòng)控制原理、傳感器技術(shù)和半導(dǎo)體制冷片控制技術(shù)，介紹了基于MSP430F149的溫度自動(dòng)控制系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)。本系統(tǒng)以TI公司的MSP430F149單片機(jī)為控制核心，結(jié)合溫度傳感器檢測(cè)模塊、半導(dǎo)體驅(qū)動(dòng)模塊、半導(dǎo)體制冷片調(diào)控模塊、液晶屏顯示模塊等，利用PID控制算法對(duì)封閉木盒內(nèi)的溫度狀態(tài)進(jìn)行動(dòng)態(tài)調(diào)控，從而實(shí)現(xiàn)盒內(nèi)溫度與設(shè)定值相等。其中，通過鍵盤設(shè)定所需溫度值，控制核心通過讀取溫度傳感器獲得的溫度值并結(jié)合改進(jìn)型的變參數(shù)PID控制算法，通過半導(dǎo)體驅(qū)動(dòng)模塊對(duì)半導(dǎo)體制冷片調(diào)控模塊進(jìn)行控制。此外，系統(tǒng)可以對(duì)制冷片的工作模式（制冷或制熱狀態(tài)）進(jìn)行光顯示，并且在液晶屏上實(shí)時(shí)顯示溫度調(diào)節(jié)過程的曲線，具有良好的人機(jī)交互性能。
關(guān)鍵詞：自動(dòng)控制；MSP430F149單片機(jī)；溫度傳感器；PID算法
Abstract: Combined with automatic control theory, sensor technology and semiconductor refrigeration technology, the design and realization of the temperature automatic control system based on MSP430F149 MCU is introduced. This system consists of the processing core module which based on MSP430F149 MCU, the sensor detection module, the semiconductor driver module, the semiconductor refrigeration module and the LCD display module. Moreover, in order to adjust the temperature in the box equal to the setting value, the PID algorithm is utilized to perform the dynamic adjust for the temperature. After the startup of the system, the temperature value can be set by keyboard, and the sensor can get the temperature value in the box and send the data to the processing core module. And then, a novel multi-parameter PID algorithm is utilized to control the performance of the semiconductor driver module. With the effect of the semiconductor driver module, the temperature in the box can finally be adjusted by the semiconductor refrigeration module according to the setting value. In addition, the work condition of the semiconductor refrigeration module can be displayed by the light, furthermore, the realtime shown of the temperature change can also be perform by the LCD display to improve the capability of the human computer interaction.
Keywords: Automatic control; MSP430F149 MCU; Temperature sensor; PID algorithm
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