Design And Implementation Of Car Voice Assistant Based On Android

After years of development,voice interaction is no longer the narrow concept of the interactive way.The battle for in-vehicle voice interactive platforms has proceeded to the stage of incandesce in recent years.All enterprises are trying to enter the Internet of Vehicles market.We have seen vicissitudes in the global automotive voice market.International giants such as Amazon,Nuance and Google,as well as domestic well-known manufacturers such as Iflytek,Baidu,Speech and Unisound,have worked together to promote the comprehensive upgrade of car voice interaction from the traditional command mode and natural mode to active dialogue mode through cooperation with major car companies across the world.For Didi,online taxi-hailing service acts as one of the major businesses.Therefore,the key lies in ensuring the driver's experience and safety.Considering the particularity of the work and interactive pain points such as unsmooth interactions caused by traditional interactions,I analyze some of the functions of the car voice assistant and conduct a complete design,that is the voice recognition module which is used to accurately identify the user's needs and transmit the correct recognition result to the semantic understanding interface,thus ensuring the smooth operation of the user's voice interaction.The speech synthesis module is used to play the text fed back by the machine through personalized speech.I am mainly responsible for invoking the results of semantic understanding and giving corresponding feedback to the user according to the logic of business feedback and the integrated language conversion system.The navigation module is mainly used to implement basic functions such as path planning,positioning,and map zooming through voice interaction.The music module is mainly to realize such music-related functions as song playing,collection and control through voice interaction;the information query module is mainly to realize the weather and stock inquiry at the specified time and place;the recording module in the itinerary is mainly used to assist the enterprise security and compliance through the related functions of the car voice assistance.The paper first expounds the source and background of the project,introduces the research status of the car voice assistant and the mature cases of the industry,and then introduces the related technologies used in the project,including the MVP framework,the Android system architecture,and the data storage of the Android platform.The paper provides an overview of the requirements of each functional point in the requirements analysis phase,and introduces the functional and non-functional requirements of the system through illustrations.Next,this paper disintegrates the project module during the system design phase and analyzes the technical architecture and data structure of the system.Then,this paper gives a detailed description of each function point and its internal logic combined with the module and the timing diagram,and in the detailed design and implementation phase of the system.At present,this car voice assistant has been officially launched,and the above functions can be used normally to meet the needs of enterprises and customers and they are in constant improvement and optimization.