数字式MEMS加速度传感器在车载导航中的应用

Application of MEMS Accelerometer with Digital Output in Vehicle Navigation

提出一种基于数字式MEMS加速度传感器ADXL202JE,设计了应用此传感器来判断车辆是否位于高架上的全数字式装置。分析了整个系统硬件的特点,结合实际测量结果,设计了相应的软件算法,并进一步论述了提高测量精度的方法,最后通过实际车载实验验证了设计的正确性。

The digital instrument to judge whether the vehicle is on the overhead road is developed based on the dual axis MEMS accelerometer with digital output ADXL202JE. The features of system's hardware are introduced. According to the practical measurement, arithmetic is designed. Moreover the techniques of precision enhancement are studied. The experiments on vehicle indicate that the design is feasible.