单片机控制豆浆机设计.doc

单片机控制的豆浆机设计 摘 要 本文介绍的智能豆浆机系统由AT89C52系列单片机、DS18B20温度传感器、加热电路、防溢电路、打浆电路、报警电路等组成，豆浆生产完全自动化。其工作过程是：先将黄豆放入豆浆机内，内倒入适量的水，装好机头。接上电源，指示灯LED亮起，处于待命状态。按下功能键开始加热，当温度达到80℃左右时，停止加热；电机运转，将黄豆粉碎，而后电机停转，又开始加热，直到豆浆第一次沸腾，停止加热，进入防溢延煮过程，防溢延煮后，发出报警声，提示豆浆已做好。若缺水，则关闭加热器和电机，并发出报警声，直到关闭电源，加水后才能继续使用。豆浆生产的工序包括打浆、煮浆、防溢延煮，而三个工序又密切配合，使生产的豆浆味道更好，不同的豆浆种类，打浆和煮浆的时间和次数都不一样。磨浆前进行预加热，既可以提高工作效率，又缩短煮浆的时间，防止磨浆后煮浆时间过长易造成糊锅现象。 关键词：豆浆机，控制系统，单片机，稳压电源，温度传感器 THE DESIGN OF SOYBEAN MILK MACHINE CONTROLLED BY SINGLE-CHIP MICROCOMPUTER ABSTRACT This article describes the system consists of Intelligent Soymilk AT89C52 series microcontroller, DS18B20 temperature sensor, heating circuit, anti-overflow circuit, beating circuits, alarm circuits and other components, milk production and fully automated. The working process is: first soybeans into soybean milk machine, the inside into the amount of water, install a good nose. Connect the power, LED indicator lights on standby. Press the function key to start the heating, when the temperature reaches about 80 ℃, stop heating; motor is running, the soybean crush, and then the motor stopped, they began to heat until boiling milk for the first time, stop heating, cooking process extended into the spill, extension of boiled anti-overflow, an alarm sound, suggesting that soy milk is ready. If the water, turn off the heater and motor, and the alarm will sound until the power off, add water to continue using. Milk production process, including beating, boiling syrup, anti-boiled overflow extension, while the three processes and closely with them to the production of milk taste better, different types of milk, beating and cooking time and number of pulp is not the same. Pre-heating before the refiner, can enhance the work efficiency, and shorten the cooking time of slurry to prevent the long cooking time, after grinding the paste pot could easily lead to the phomenon. KEY WORDS: soybean milk machine，control system，series microcontroller，power supple，temperature sensor 目　录 TOC