一种新的超低功耗轮胎监控数据采集系统设计

摘要

An ultra-low power data acquisition in direct-type tire pressure monitoring system (TPMS) is designed. The collector uses MSP430F149 as MCU and ATA5749 as wireless transmission module, the wake-up circuit of the collector is given. Finally, the software processes of data system are given by interrupt. The wake-up circuit can provide small charge for battery module, the way can delay the battery life of the collection module.%设计了一种直接式轮胎压力监视系统(TPMS)中的超低功耗数据采集器.该采集器以MSP430-F149单片机作为数据采集模块的主控MCU,以ATA5749作为采集器的无RF发送IC,并设计了采集模块的唤醒电路；最后以中断唤醒的方式设计了数据系统的软件工作过程；并且在唤醒信号处理的同时提供了对电池的微小充电,延迟采集器电池寿命.