基于CC3200的无线运动传感器节点研制及功耗优化

Wireless Motion Sensor Node Based on CC3200 and Optimization of Power Consumption

研制了一套无线运动传感器节点,不仅能采集加速度、角速度和磁场强度信号,可稳定地记录使用者各部位的运动信息,而且功耗低、待机时间长。设计缓冲采样方式,利用了CC3200电源管理技术、中断唤醒机制和状态机转换机制,基于选择低功耗的微处理器、优化软件设计等从硬件和软件两个方面对无线运动传感器节点进行了功耗优化。结果表明:功耗优化后,在同等电池容量下,所研制节点设备理论使用时间从13小时提高到32小时,可用于长时间监测运动障碍患者的连续运动症状。

This paper developes a set of wireless motion sensor nodes.It can not only collect the signal of acceleration,angular velocity and magnetic field strength,can be stably record the the movement information of user parts,but also has low power consumption and long standby time.It designs the mode of buffer sampling and use the CC3200 power management technology,interrupt wake mechanism and state machine conversion mechanism.