Overview

Online live teaching can present the educational process many times, which is beneficial to study and test of distance education. At present, online live broadcast teaching has been upgraded to a “face-to-face” mode. Online live teaching has changed the “human-machine” interaction of distance learning into “person-person” interaction, changing from “non-real-time” to “real-time”, allowing information to flow quickly and to promote the formation and accumulation of knowledge and solve the problem of the separation of "teaching" and "learning" in traditional distance learning.

Introduction

1.General plan

All recording and interactive applications will complete user requests through cloud servers and networks: direct viewing of existing teacher’s videos, real-time viewing of lectures. The computer or video terminal in each classroom is logged in to the server, and the video of all classrooms is transmitted to the server through the network, enable the communication with the classmates and teachers of other classrooms.

2.Introduction

(1) Equipment

The remote interactive and live teaching is carried out through the online platform. The lecture room and the listening classroom can interact to form a one-to-N teaching mode. At the same time, the process can be recorded and edited after the class. The recorded courses will be placed on the platform for students and teachers who are not involved to learn. And improve the application effect of distance learning. The supporting equipment are as follows:

1. Recording and broadcasting host: The recording and broadcasting system integrates functions such as recording, live broadcasting, on-demand broadcasting, navigation, management, storage, video and audio coding, etc. into one host.

2. central controller: central controller connected to the recording and broadcasting system equipment and other multimedia and equipment, using microprocessor communication technology, system integration technology, and touch operation technology, to operate various functions according to users.

3. camera: shooting teacher, blackboard, students, etc., can be divided into panoramic shooting, teacher tracking shooting, student tracking shooting and teacher close-ups.

4. pickup: collecting students’ voice according to the size of the classroom area

5. interactive display: display teacher + student sub-screen+学生分画面

6. audio processor: pickup processor, echo cancellation, noise cancellation processing.

7. active speakers: play teacher’s voice, courseware audio, student audio.

8. touch machine: board, play courseware, etc.

9. touch tablet: class control, interaction, etc.

(2) Program content

The online live broadcast teaching system uses computer and network to carry out long-distance lectures, realizing the interactive image, sounds and teachings in different places, and realizes the goal that the traditional distance education cannot reach. This has made distance teaching enter a new stage of development. It no longer limited to the non-interactive education mode of multimedia, but bring the interaction of remote teachers and students, and face-to-face visual communication.

Through the online live teaching system, the main classroom and the listening classroom are connected to realize real-time interaction with each other. The listening classroom can receive the audio, video and teaching materials of the teacher, and the lecture classroom can receive the audio and video of the students. During the class, everyone can ask questions and answer questions in real time which truly realize the “face-to-face” Q&A.

The picture at the lecture classroom:

The pictures at the listening classroom:

In the process of live interactive teaching, administrators or teaching assistants can observe the interactive teaching courses that are being broadcast live through the online live teaching platform, without affecting the normal course. During the process of viewing, text comments can be made online to facilitate the development of various teaching and research activities.

1, audio and video interaction

Students and teacher can receive video and audio from each other. The high-quality video and audio interaction makes the classroom communication more clear and smooth.

2, courseware recording and sharing

To carry out distance learning, resources is the key of it. Courseware is one of the most important resources and knowledge. The online live teaching platform is mainly used for recording and playing the courseware. Using the online live teaching platform, teachers can record the multimedia such as screens, videos, sounds, and textbooks in real time. Once the courseware has been integrated to form a complete course/material to be published to the platform repository, it can be played on demand.

Through the realization of the above education mode, online live teaching is not only limited to resources and teachers. After research on distance education, we will satisfy and realize schools, teachers, students and even with parents' deeper expectations and needs for distance education, our education solution will be able to solve the “loneness” of remote students and to active remote classroom atmosphere.