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| Development of a Water-cooled Temperature Control Experimental System with Human-Machine Interaction |
Zhiyu XU1( ), Zhiliang WU2, Youling YU1() |
1. School of Electronics and Information Engineering, Tongji University, Shanghai 201804, China
2. Lehrstuhl für Steuerungs- und Regelungstechnik, Technische Universit?t München, Munich 80333, Germany |
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Abstract The water-cooling unit is a device which utilizes water-circulation to accelerate the cooling process of CPU. This paper develops the “iWater” experimental system, and applies it to control temperature and realize real-time human-machine interaction. The closed-loop control mechanism is utilized. PTC ceramic plays the role of heat source; DS18B20 digital thermometer provides temperature feedback; STM32 MCU performs PID strategy and generates PWM command to H-bridge driver. Since the speed of water-cooling unit is controlled by applying a variable voltage, the temperature is regulated as constant. Multiple functions of human-machine interface are integrated. The infrared remote control is applied to set temperature reference, control strategy, and various parameters. TFT-LCD is adopted for on-spot display of temperature waveforms. The experimental data are transmitted via the USART channel, and the temperature trajectory is plotted in the VisualScope of host computer. A prototype is developed and test results validate the effectiveness of this “iWater” experimental system.
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Received: 18 September 2016
Published: 10 July 2017
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2017, Vol. 36 
