Design of multipath temperature system based on 8051F020

Temperature measurement system is widely used in key industries at home and abroad such as aerospace, industry, agriculture, green energy, information and communication technology, etc.. We always need to measure multi-path temperature signal. This system aims to collect multi-path temperature by using advanced high-speed SCM 8051F020 and 18B20 based on 1-wire bus protocol, together with NS-LM94022 temperature sensor . It actualizes the storage of temperature and time on 24c64 while power supply fails by using IC which is based on SMBUS serial bus interrupt. By setting the limits of alarm temperature, it actualizes the alarm of light and sound, and the function of temperature broadcast.