Design And Implementation Of Intelligent Multimedia Digital Explanation System Based On The Embedded System

The development of communication technology better off people's way of life tremendously. Tourism which mainly includes amusement and tour will be paid more and more attention, so will the exhibition halls, museums, culture education exhibition halls and products trade which mainly include scientific information and culture information. The electrification, intelligentization and visualization of visit and tourism service are the destination of improving service level from all position.The conventional manual explanation not only need lots of people and resource, but also cannot guarantee the quality of explanation, especially when there are lots of people and several narrators are talking at the same time, and most of the visitors cannot hear or understand the explanation. Because of the defect of conventional explanation and the urged need for electronic guided products, this article suggests a kind of based on embedded designed scheme of wireless intelligent multimedia digital playing system, and accomplishes the development of system sample by the designing of software and hardware, it mainly includes:First, the architecture of this system is proposed according to the requirement analysis. It is composed with two parts: wireless ID code transmitter and wireless intelligent multimedia playing handset. Then main chips were selected for the system. Finally, ARM9 S3C2440A made by SAMSUNG and wireless chip CYWUSB6934 was determined.Second, the hardware of wireless intelligent multimedia explanation handset which control core was S3C2440A was designed. Every unit circuit of handset and transmitter were completed as well.Third, the wireless intelligent multimedia digital explanation system is based on the embedded ARM-Linux system and Qtopia GUI platform. The building of the software platform was researched. Boot process of bootloader, kernel architecture of Linux and YAFFS file system were described. It focused on the development process of SPI driver. And then the GUI system was analyzed and transplanted. Meanwhile, the intelligent playing function and manual function were implemented. At last, the system performance evaluation which was examined by the SPI driver testing, performance testing and intelligent playing was given. Test results show that the system can meet the requirements of the various performance indicators.