基于51单片机的智能食物变质报警器的设计与实现

Design and implementation of an intelligent alarm for food deterioration based on the 51 single- chip microcomputer

介绍了一种自主设计的智能食品变质报警系统.系统由AT89C51单片机、MQ-137氨气浓度传感器、警报装置和电源组成.单片机通过MQ-137传感器实时采集监控区域的氨气浓度,当采集到的数据超过报警阈值时,警铃响起同时红色指示灯闪烁.经测试,报警系统反应迅速、报警准确、价格低廉,具有很高的实用价值.

This paper introduces the design of an autonomous intelligent food spoilage alarm system. The system consists of AT89C51,MQ- 137 ammonia concentration sensor,alarm device and the power supply.Through MQ- 137 sensors SCM collects the real- time monitoring area of ammonia concentration,when the collected data is more than alarm threshold,the alarm bells begins to ring and the red light is flashing at the same time. Through the test,the alarm system is quick,and the alarm is accurate,with low cost,which has the very high practical value.