Research On Interactive Design Of Vehicle Warning Signal Based On Situational Awareness

With the development of computer technology and vehicle information technology,more and more complex traffic road environment and driving task operation.In order to cope with this situation,technology is used to provide users with good assistance and information experience,and make driving trip better.It is of good significance to study the relationship between warning system and users,especially the interaction of warning signals The method of situational awareness is to continuously solve and build a good experience between warning signals and users.This paper makes an in-depth study on the related issues involved in the vehicle warning signal system in driving situations,mainly including the combing of typical risk situations,the audio-visual characteristics of users in driving situations,the characteristics of the differences between users' perception of risk situations and actual risks,the design and evaluation of the audio-visual components of warning signals,the visual evaluation and advantages of warning signals in situations Change.First of all,this paper discusses and sums up the relevant development history,working principle and warning signal of the warning system,and puts forward the constituent elements of the warning signal and the safety elements concerned by users.This paper expounds the basic human-computer physiological and psychological elements of the interaction between warning signals and users,and explores the method of situational awareness based on the methodology of interaction design.The methods of interaction design,typical scenes and image scale are also summarized.Through combing typical scenes,typical user portraits and main driving tasks,the main characteristics of various elements in driving situations are clarified.On this basis,the user's vision,sight and hearing in driving scenes are experimentally explored,and the user's audio-visual characteristics in driving situations are extracted.According to the principle of "user centered in situations",the above two characteristics are taken,The design goal of warning signal is summarized.Secondly,the risk factors in driving situations are classified into active driving risk and non-active driving risk factors,and the differences between the perceived risk level and the objective risk level of users in driving situations under various risk factors are discussed.The warning signal is to make up for this difference,and guide driving behavior to reduce risk.The researcher constructs the mathematical relationship between the factors of users' perception of risk degree,and proposes that users can get correct perception of risk degree without any warning signal,which is the most ideal driving situation.On this basis,the intervention principle of warning signal in users' perception of risk is proposed.Thirdly,based on the risk factors of different degrees in the driving situation,and the basic principles of risk perception and risk resolution in the driving situation,the image scale evaluation model is extracted.The language description,graphics,text,color,animation and sound signals in the audio-visual signals are explored in the form of workshops It is necessary to conduct unit evaluation,and finally conduct expert video evaluation on the composite form of the signal,deduce the final result of the interactive form of the warning signal,and build the evaluation system of all levels of the warning signal in this process.Integrating the design system of situational awareness involved in the research,the specific design methods are given.Finally,based on the research results and related literature,the paper constructs the interactive design suggestions of warning signal system under high,medium and low risk driving situations.