基于MSP430单片机的电子艾灸盒设计

Design of the Electronic Moxibustion Apparatus Based on MSP430 Microcontroller Unit

目的为解决现有艾灸器具无法实时监测调节温度,易造成病人烫伤,无法获得最佳艾灸疗效等问题,提出了基于MSP430F149单片机的电子艾灸盒的设计。方法通过键盘输入预设温度,由MSP430 F149单片机控制DS18B20温度传感器读取实时测量温度,根据测量温度与预设温度比较结果控制步进电机旋转以调节筛网的高度,最终达到闭环监测调节温度的目的。结果根据实际测量艾灸温度,依据相对误差公式,计算相对误差为1.69%,相对误差较小,说明电子艾灸盒可较好的控制艾灸温度。结论多次实验证明,该设计能够实时监测并有效控制艾灸温度,大大降低病人烫伤的风险。

Objective Considering that the current moxibustion apparatus cannot adjust the temperature for the real-time monitoring,which easily lead to patient burns and inadequate moxibustion curative effect,we proposed the design of electronic moxibustion apparatus based on MSP430F149.Methods First of all,we preset the temperature with a keyboard and get a real-time temperature with the DS18B20temperature sensor controlled by the MSP430F149.Then,we compared the measured temperature with the preset temperature.In the following,based on the comparison above,we regulated the level of the screen by manipulating the rotation of the stepper motor.Finally,we got the closed-loop temperature control.Results Through calculating the relative error with the relative error formula according to the actual measured moxibustion temperature,we knew that the relative error was1.69%,which indicating that the electronic moxibustion apparatus could control and adjust the temperature well.Conclusion After a series of experiments,the design has been proved to be able to monitor and control the temperature,and can reduce the risk of burning.