Design And Realization Of Classroom Network Real-time Record And Broadcast System In Universities And Colleges

This paper is a research about the classroom network real-time record and broadcastsystem in universities and colleges. First, the research background and significance isdiscussed and the overseas and domestic research status are analyzed. Then, threerepresentative network record and broadcast products in the market are analyzed andcompared from the aspects of basic structure, functional characteristics, key technologiesand technical parameters after the theoretical foundations and related technology of thedesign and realization of network record and broadcast system are analyzed. Theadvantages and disadvantages of those three products are pointed out. Next, a demandanalysis is carried out for the network record and broadcast system of universities andcolleges. Taking the author’s university as an example, key technologies are selected bycombing the practical demands to put forward the general scheme for the classroomnetwork record and broadcast system in the author’s university,4point centralized-controlnetwork record and broadcast system, including two types as “blackboard-writing type”and “courseware type”. Meanwhile, based on the above research, a network record andbroadcast system model is put forward. Moreover, based on this model, the detailed designschemes of those two type record and broadcast systems as “blackboard-writing type” and“courseware type” are put forward. Finally, it is the realization stage of the system. Takingthe4point centralized-control network record and broadcast system in the author’suniversity as an example, the following aspects as detailed design scheme, selection ofmain equipment, site selection and transformation of record and broadcast classroom,system construction and system debugging are introduced in details.Finally, a conclusion is made for the whole research. The disadvantages in the projectresearch are found out and the future research direction of network record and broadcastsystem is put forward. Though the research in this paper is based on the author’s university,it can also provide certain references for other universities in researching and buildingclassroom network real-time record and broadcast system.