Based On Bluetooth Technology, Data Transmission And Realization

As a telecommunication protocol, Bluetooth wireless technology ensures communication compatibility worldwide. It provides an open-standard of wireless interface and control software with a low-cost, low-power consumption solution. Because of the process of developing Bluetooth is very complicated, an easy solution based on Host Controller Interface(HCI) is put forward and two schemes are introduced to improve the performance of Bluetooth system.This thesis first researches the developing solution based on HCI of Bluetooth. HCI protocol is introduced at length. A detailed analysis on the design of HCI hardware and software is given, and two developing solutions based on HCI is then provided. The point-to-point wireless data transmission system is designed, then it's detailed block diagram and operating theory is given. The paper introduces how to constitute the system using MCU and Bluetooth module. It also introduces main chip's operating theory which is used in this system. The process of initializing Bluetooth equipment, inquiring and requesting create a connection to other Bluetooth equipments, data transmission and disconnection is analyzed in detail. At last author gave a software flow chart.Finally this paper proposes an adaptive frequency hopping (AFH) scheme and an adaptive segmentation scheme to improve the performance of Bluetooth system. It respectively explains the operating theory of two schemes . The performance of system is simulated and evaluated after adopting the two improved schemes .The simulation results prove that the proposed schemes greatly improve the performance of system.