Research on Smart-phone Based Active Safety Warning Technology

Vehicle active safety systems have been proved effective for saving lives and reducing traffic accident.However,these systems were more expensive and less widespread than smart-phones,the multi-sensor functions and information processing ability inside the cell phone were greatly improved for further application.Firstly,the parameters and functions for these sensors are introduced in this study.Then,the framework of smart-phone based active safety system is proposed.The function for safety warning system is designed using forward collision warning,lane departure warning system as examples,and is well explained.The field experiment using two typically smart-phone system and professional system was conduct for function and accuracy analysis finally.The results indicate that the accuracy of smartphone based system was acceptable;the high-equipped smart-phones can realize even more active safety warning function.