Design And Realization Of Embedded Bluetooth Advertising System Based On S3C2440A

In recent years, the advancing technology in microelectronic technology and embedded technology field greatly promotes the continuously popularization and rapid development of various communication equipment. Also various electronic products have entered people’s lives and play an important part in life. The emergence and development of Bluetooth technology greatly promote and broaden the field of wireless communication applications, so people can easily get various data files they want to search by easily using Bluetooth wireless communication technology. Bluetooth technology has been widely used in many electronic terminal, such as mobile phones, PDAS, notebook computers, Tablet PC, PSP. A variety of digital media content which are sent to personal mobile terminal by using Embedded Bluetooth technology would bring the advertising effect and likely grow up great commercial value. At present, Bluetooth technology is in a rapidly growing popularity and rapid development stage. In future, more and more Bluetooth devices will be integrated into electronic devices. Bluetooth information services will also be put into use in more fields. Bluetooth technology will also cause a new way of media.The article focuses on the technical principles of the Bluetooth technology, microprocessor S3C2440A platform based on ARM9, the construction of the embedded software and hardware platform supporting for the Bluetooth technology, and the development of applications on Bluetooth advertising system. Firstly, it aims introducing the basic knowledge of Bluetooth, and makes a meticulous analysis about the Bluetooth protocol, especially the protocol OBEX in Bluetooth application protocol. Then, detailedly describe how to build the hardware and software platform into the system development, and explain in detail how to establish the S3C2440A platform hardware and Linux cross compile environment, how to configure, compile and transplant the embedded Linux system, and how to transplant Bluez Bluetooth protocol on S3C2440A platform. Also Bluetooth development platform has been successfully set up in embedded systems in the work. And it can test Bluetooth devices in the embedded platform, develop the application of Bluetooth devices. From this, it gives the design thought about Bluetooth advertising system. Finally, it introduces Qt--the popular cross-platform c++graphical user interface library and tells the development environment and application Qt/Embedded, and design an interactive friendly control interface by using the Qt designer.By analyzing the communication principle of Bluetooth protocol and basing on technology characteristics on how Bluetooth technology in embedded systems sends files to the mobile terminal equipment, the article presents with what Bluetooth advertising system can be realized by using Bluetooth technology in the embedded platform. Also it explains how to design it and analyze the key technology to make the system run successfully. In the work, it analyzes the automatic search Bluetooth devices, the found OPUSH service, the channel sending the file and on automatically sending files. It not only gives the relevant program and the renderings on how they run, but also gives the corresponding analysis. The database is added to the embedded Bluetooth advertising system. It can help well record and view the status of advertising. The design basing on the embedded development platform can present the good Qt GUI interface and provide with corresponding test.The test proves that the system can support spreading a variety of advertising media files and can transfer fastest within the scope which can transfer. Qt GUI interface implements the simple control of Bluetooth. Because of well-operate interface surface, it exactly conforms to the trend of the development of embedded systems today. The design and implementation of the embedded Bluetooth advertising system cater to the catered to the trend of the development of the Fifth Media". Therefore, it has a good prospect. In addition, it can help develop the embedded technology basing on Bluetooth technology.