Establishment of Coordinate Relationship with Accelerometer
Xiaojie Zong, Xiangji Wen, Tiezhu Zhang · Advances in intelligent systems research/Advances in Intelligent Systems Research · 2015
Driving status recognition, driving route tracking and traffic flow detection application, and so on, are strict with the smartphone orientation.In order to achieve a good performance, we should learn its orientation in advance.In this paper, we propose a new approach to estimate the smartphone orientation by detecting the vehicle starting action.Instead of compass, we utilize the accelerometer to obtain coordinate relationship between smartphone and vehicle.In this way, we can overcome the environment impact, because the compass is essential to the environment and can't achieve a high accuracy.Comparing with previous work, our approach reduces the requirement for starting period.Upon data processing, for example, action recognition, data filtering and parameter optimization, the experiment result shows a good performance, for example, high sensitivity and accuracy.