基于STC89C52的车内滞留儿童预警系统设计

Design of Early Warning System for Stranded Children in Car Based on Single Chip Microcom‐puter

STC89C52微控制器用于预警系统,可实时跟踪温度和二氧化碳浓度,实现趋势可视化。收集温度数据时,使用数字温度传感器DS18B20测量现场环境温度,使用SGP30二氧化碳传感器实时跟踪二氧化碳含量。信号经处理并发送至微控制器后,LCD1602液晶显示器会显示当前的温度和二氧化碳浓度读数。用户可通过按键设定温度和二氧化碳浓度值,从而实现整体式汽车环境监测。本系统价格低廉,性能可靠。

The interior environment monitoring system of STC89C52 single chip microcomputer is introduced to monitor the real-time temperature and carbon dioxide concentration of the field environment,and its change trend is directly reflected.The digital temperature sensor DS18B20 is used to collect the field ambient temperature,and the Li SGP30 carbon dioxide sensor is used to monitor the carbon dioxide concentration in real time.After sending the signal to the single chip computer,the LCD1602 displays the real-time temperature and carbon dioxide concentration value,which realizes the real-time monitoring process of temperature and carbon dioxide concentration.The system has low cost and reliable operation,and the user can realize the environment monitoring by setting the temperature value and the carbon dioxide concentration value.