中文摘要：

针对现有空中无线鼠标存在通信距离短、电池供电局限性等问题，采用通信距离更长的2．4GHz无线传输模块以及可循环充电利用的锂电池对空中无线鼠标系统进行了改进；同时系统接收端采用USB设备通信，将大容量存储设备与鼠标设备熬合复用，并实现二者功能的任意切换，从而提高了该鼠标系统适应实际应用环境的能力；本系统采用多传感器信息融合技术，对三轴陀螺仪和三轴加速度计的数据进行实时采集，将采集到的数据传送给STM32微控制器，用于计算鼠标的位移、角度、角速度等参数；利用无线传输模块将数据发送到接收端完成与计算机的通信，控制电脑并完成鼠标的功能，同时USB设备的接收端可免插拔切换为U盘模式；从而实现基于MEMS技术的多媒体空中无线鼠标的智能化和多功能化。

英文摘要：

The air wireless mouse system adopted much longer communication distance 2.4 GHz wireless transmission module and a rechargeable lithium battery is improved, in order to solve the existing problem of wireless air mouse, such as the shorter communication distance, the limitations of battery--powered and so on. It is well--adapted to the practical application environments that the receiver through the USB protocol can be reused as the massive storage device. The air wireless mouse system is adopted multi--sensor data fusion technolo gy. Firstly, the real--time collected data through the three axis gyro and three axis accelerometer is transmitted to the STM32 microcontroller, used to calculate the mouse displacement, angle, angular velocity and other parameters. These datas will be sent to the receiver by wireless transmission module to achieve communication with the computer, which is controlled to perform the function of the mouse, the re ceiver of the USB device can be switched to plug--free U disk mode, The multimedia wireless air mouse achieve an intelligent and multi functional task based on MEMS technology.