摘要
锂电池供电的便携式GPS定位终端,其待机时间是影响产品实际应用的一个主要因素。采用MEMS加速度计作为运动检测开关,在后台辨别目标体的动静状态,决定系统CPU工作的工作状态,合理配置GPS、GSM各模块的工作模式,优化整个的节电工作状态,可延长终端待机时长。
Standby time is an important factor that affects the application of GPS terminal set,with lithium-ion battery.A MEMS accel-erometer is used as a motion activated switch.It detects the state of target.According the state,the working modes of CPU,GPS and GSM module are set.The power save mode is optimized,and GPS terminal set can work for a longer time.
出处
《单片机与嵌入式系统应用》
2014年第6期54-56,60,共4页
Microcontrollers & Embedded Systems
关键词
MEMS加速度计
GPS定位终端
低功耗
MEMS accelerometer
GPS positioning terminal
low power consumption
