Research On Intelligent Helmet Based On VRV Safety Protection

With the continuous development of economy,the number of car ownership continues to rise,which improves the overall convenience of transportation,but at the same time,the number of traffic accidents is also increasing.In the accident,two wheeled vehicle drivers belong to VRU(Vulnerable Road User)group,that is,vulnerable road users,who are seriously injured and even life-threatening.The traditional helmet can only protect the head in the event of an accident,and can not reduce the occurrence of traffic accidents.In order to achieve better protection for VRU groups,it is necessary to prevent accidents before they occur.When traffic accidents may occur,braking shall be taken in time to avoid traffic accidents,reduce personnel injury in accidents,ensure smooth traffic operation and ensure social stability.The research purpose of this paper is to combine the traditional helmet with intelligent technology to form an intelligent helmet,provide corresponding information for two wheeled vehicles and vehicles in relevant road scenes,take measures in advance to avoid traffic accidents,solve the serious problem of VRU group injury in the event of accidents,protect drivers and improve traffic operation efficiency.The intelligent helmet system studied in this paper is a complex system with multi-function cross integration,including communication technology,control technology,positioning technology and other fields.The research in this paper mainly adopts the method of combining software and hardware,and uses the simulation software to carry out the simulation experiment.Finally,the road test is designed to verify the function of the intelligent helmet system.The system is mainly divided into helmet end and automobile end.In order to better realize the interconnection of information,v2 x technology is mainly applied to improve the perception ability in various complex environments.For the relevant functions that the intelligent helmet needs to realize,the positioning technology selects RTK sub meter positioning technology for positioning,which has high positioning accuracy.The communication technology adopts PC5 communication protocol,selects the hardware according to the specific requirements,debugs the hardware,and then designs the software of the intelligent helmet system to realize information exchange.Conduct joint simulation in the simulation software MATLAB and prescan,combined with the relevant scene regulations in Euro NCAP,conduct scene modeling,set relevant parameters,establish control strategy model,run simulation,view relevant simulation animation,extract simulation data,and analyze the results.Under the actual road condition,select the road for test according to the simulation scenario I condition,obtain the relevant test data,compare with the simulation results,analyze the implementation effect of relevant functions,and analyze the results accordingly.The intelligent helmet system studied in this paper carries out different levels of early warning for drivers according to the relative distance between two wheeled vehicles and vehicles,which is convenient for drivers to take corresponding actions in time to avoid traffic accidents,plays a protective role for VRU groups,has certain practicability and value,and has certain practical significance for the study of traffic accident collision between two wheeled vehicles and four wheeled vehicles.In the future development and application,combined with relevant policies,the system can reduce the injury rate of VRU group and be widely used.