The Research For Model Of Feedback System In Classroom Based On Bluetooth

It becomes a hot issue that constructing a future classroom which embodying the principles of education and information technology. The arm of this research is developing a feedback system based on bluetooth in the future classroom. How to promote convenient and effective communication between teacher and students, at the same time, to meet the demands among students? The answer is the feedback system of classroom.Compared with other Short-range wireless technology, the bluetooth technology is more appropriate in the feedback system of classroom. Firstly, this thesis focuses on the bluetooth 2.0 protocol, especially on the protocol of Baseband and L2CAP. The research of SPP can provide good reference for designing the model of the feedback system in classroom.The article presents two models of the feedback system in classroom for different teaching modes. It describes the polling algorithm of the bluetooth MAC layer. The algorithm of ERR-PS and RLRR-P is designed for the two models of the feedback system respectively.The developing of system software is based on J2ME platform(mobile interactive device) and C++ platform(micro-computer server). The research implements the point to point feedback system for interactive device and server in class, including the controlling module and information transceiver module. In addition, simulating the image data transmission in interactive multi-device.