The Research And Implementation Of Vehicle Networking Voice Service Terminal

With the rapid development of science and technology in today’s society, the mobile communication technology is more and more mature. Human-computer interaction techniques have got constant attention in the car industry. With the popularization and application of 3G technology and rapid development of mobile internet technology, more and more In-Car products emerge as the times require. Therefore, the conception and design of a In-Car voice terminal with embedded system and mobile communication platform has important practical value.This project is aimed at developing a vehicle terminal voice product. During the experiment, TQ2440 development board is the main hardware platform, the Linux operating system is the software development environment, the related data and files are transferred by 3G channel.The main work of this thesis includes writing and debugging of the client, the debugging of 3G module, OSS programming, interface design of the touch screen. The client is builded in the Linux environment using socket network programming to communicate with the server. Files can be transferred by the communication. The online music system is based on the connection to download and play the specific track. The OSS programming knowledge is used to write program to control the sound card. By this, the development board can complete the recording and playing of the sound. On this basis, the point-to-point voice message system and vehicle group voice function is designed and completed. Finally, the touch screen of TQ2440 development board is used to develop a simple user interface, each module of the voice terminal system is unified on it.After the test in the actual vehicular environment, all functions of the vehicle networking voice service terminal is completed finally, and the expected effect in the scheme is achieved.