Design Of Intelligent Car Assisant System Based On ARM And Linux

Intelligent vehicle assistant system provides a variety of services to owner, including temperature detection, vehicle-mounted voice call, anti-theft alarm, visual reversing, multimedia play, games, etc. It greatly promotes the performance of atuomobile, makes car safer and more easy park. Nowadays, all kinds of embedded processor have following characteristic:high performance, high integration, low-cost, low power consumption, which are the direction of electronic application technology. The processor integrates abundant of control interface. Meanwhile, it effectively reduces the cost and difficulty of design. Embedded processor is a feasible and practical solution to intelligent vehicle assistant.The system adopts S3C2440of Samsung as processor. This chip has the characteristic of high process speed and abundant resources, which meet the design requirement. In order to realize plenty of functions, the system expands several function modules. Temperature detection module adopts commenly used DS18B20as sensor. Message warning module is composed of ME3000wireless module from ZTE. Vehicle-mounted voice call module also includes speech synthesis chip XF-S3011of KEDAXUNFEI corporation. XF-S3011is a cost-effective Chinese speech synthesis chip. It integrates speech synthesis into a single processor through a serial port receives and synthetizes text. CCD camera with USB interface is used in the visual reversing module.The system uses embedded Linux as operating system, and uses embedded Qt graphical user interface library as development tool to compile graphical user interface. The software part of system is divided into system software and application software development. System software is composed of some parts, including Bootloader, Linux kernel, root file system transplantation, establishment of cross-compiler environment and device driver development. Application software development is composed of following parts: temperature detection program, vehicle-mounted voice call program, visual reversing program and relevant interface program.Intelligent vehicle assistant system provides a more comfortable and safe driving environment. It is of great significance in the field of automobile electronic.