The Research Of Multi-Screen Interactive System In Smart Classroom

In recent years, with the rapid development of new information technologies, such as internet of things, cloud computing, human-computer interaction, and the continuous promotion and deepening of the new mode of teaching, such as heuristic teaching, participatory teaching, inquiry teaching and etc, based on the function of traditional multimedia classroom and taped classroom, integration of advanced human-computer interaction, intelligent sensing, cloud integrated teaching platform and other functions of a new generation of interactive smart classroom has become the focus of research for academics and industry. Multi-screen interaction as the core part of human-computer interaction in smart classroom, is an important research content in smart classroom.This thesis has deeply researched multi-screen interactive system in smart classroom and aimed at creating an environment of multi-screen interaction, which combines multi-touch screens, computers and mobile terminal devices organically, to provide an smart learning environment.Firstly, the thesis introduced the conception of smart classroom and multi-screen interactive technology, and analyzed multi-screen interactive system and the research status of it at home and abroad. It also briefly introduced the project and research significance of the multi-screen interactive system in smart classroom.After that, on the basis of research, combined with the characteristics of the new mode of teaching, the author analyzed the user demands and technical feasibility in detail, and proposed the general frame of multi-screen interactive system based on touch screens and mobile terminal devices, and further elaborated the components and functions of core modules in the system, including multi-screen display module and touch controller module. Touch controller module as the core part of multi-screen interactive system, is an important research content of this thesis. The thesis made a deep study of the working principle and the communication mechanism of this module, including USB device enumeration, USB standard requests, USB device driver, Gadget driver and etc.Then, based on the above research results, according to the specific application requirements in a smart classroom, the thesis designed and implemented a case of multi-screen interactive system, focused on the research and development of modules of multi-screen display, touch controller, USB HID device driver. And it made the function and performance tests in the actual scene in smart classroom, the test results manifested the system has easy operation, interactivity, sharability, and could meet the demands of users.Finally, the thesis has concluded the completed work, analyzed the aspects which need to be improved, and discussed the application prospect and development direction of multi-screen interactive systems in education field in the future.This thesis has described the research of multi-screen interactive system in smart classroom in detail, especially from the point of multi-screen interaction, which can provide some guidance to the design of human-computer interaction in smart classrooms in the future.