Smart Education Solutions

Application of wireless presentation system in smart education

Awind wireless presentation/screen sharing/same screen software and hardware solutions integrate mainstream projection protocols such as Airplay and DLNA, and integrate with self-developed wireless network (Wireless), multimedia audio and video (Multimedia), embedded system (Embedded System), Windows/ WinCE/Mac complements the MirrorOp wireless transmission screen capture technology of Microsoft’s new operating system Vist (Win Vista), and is compatible with various platforms such as Windows, Android, ios, Linux, etc. Interconnected screen projection, multi-channel simultaneous projection, two-way reverse control, interactive collaboration and other functions between large screens, splicing screens and TVs. Build a set of internationally leading high-quality audio-visual IT products and wireless display solutions.

At present, Awind wireless presentation system software and hardware products have reached cooperation with a number of domestic large-scale system integrators, and are used in smart classrooms in the education industry, office scenes in government units, video conferencing hardware support, training speeches, smart homes, large-screen games for game manufacturers, Home appliance manufacturers TV projection and many other fields.

The application of wireless presentation system in teaching

Just because the screen sharing technology has real-time transmission of screen mirroring, audio and video data transmission, and multi-screen control, teachers can control all screens with one key during teaching, which can realize teaching on the same screen, teaching on different screens, multi-screen interaction, and one-key projection. , multi-screen broadcasting, handwritten annotation, collaborative work, and loop playback of teaching content to adapt to teaching modes such as group discussions. Many educators have already applied it to classroom teaching and training. First, they will build the wireless network environment required for screen projection technology in the classroom or venue. After successful connection, they will integrate the mobile device with the multimedia system in the classroom or venue to form a new mobile teaching platform. The screen of the mobile device Various functions can be performed. Teachers are free from the constraints of the podium and can move freely to form interactive teaching.

  1. As an extended screen

Extended screen is the most basic function of presentation system technology. It allows lecturers to be not limited to the sharing screen of the multimedia system in the classroom, but can also add mobile, tablet, or even another computer as an extended screen to enrich the sources and forms of presentations. For example, if teachers need to demonstrate documents, photos, videos and other content in mobile devices, they no longer need physical copies, and can be displayed directly through screen sharing technology.

  1. As an electronic whiteboard

Most of the existing classroom multimedia systems, such as projectors, LED displays, and LCD TVs, do not support touch-screen operations, while the screens of mobile phones, tablets, and other devices are high-definition multi-touch screens. Set up to be a powerful handheld electronic whiteboard. Teachers can freely write and draw on mobile devices, which is similar to using a large screen as an electronic whiteboard, and this “electronic whiteboard” can also be freely carried to support the functions of the electronic whiteboard.

  1. As a video booth

Now, many multimedia teaching systems in classrooms support the function of video booths. Especially in experimental classes, the application of video booths in teaching is very rich, which can bring students a more intuitive and vivid experience. However, the existing video booths have problems such as expensive equipment, complicated operation, and limited use of connecting cables. Teachers can only display on the podium and cannot take into account every student. Smartphones are much more convenient to use. Relying on screen projection technology, smartphone cameras can be integrated into classroom multimedia systems and become mobile video booths. This method can also save money and reduce maintenance difficulty.

At present, the camera pixels of smartphones generally reach more than 10 million pixels, and the resolution is relatively high. Moreover, with the support of related mobile APPs, it can also achieve 3D, panoramic, fill light, special effects, camera conversion and other optimized shooting functions. Using the screen projection technology, the pictures taken by the mobile phone can be displayed on the large classroom screen in real time, which can be used for case analysis and work display. function to improve teaching efficiency.

  1. As a wireless remote control

In addition to transmitting audio and video data and real-time images, screen sharing technology can also transmit mouse and keyboard signals. Using smart devices as a wireless pointer, it can remotely control classroom computers and large screens, and remotely play PPT and mouse on the computer. Controls the function of the left and right buttons. With the help of wireless network and screen projection technology, teachers can control the computer arbitrarily only by making corresponding settings on the mobile phone. In this way, the smartphone is both a wireless mouse and a page turner, serving multiple purposes with one stone.

  1. Collaborative Teaching

A teaching team composed of a number of teachers, jointly develop a teaching plan, and arrange students in the most appropriate teaching environment according to their respective strengths, division of labor and cooperation, and an organizational form of jointly completing a (or a class) teaching task. According to the nature of teaching activities, the methods of combined class teaching, divided class teaching, group study and individual guidance are adopted respectively. Co-class teaching is to give instructions, that is, the teacher prompts the content of the teaching materials, learning methods, and necessary experiments. Group teaching is to conduct discussions and organize and analyze the content of teaching materials. Individual guidance means that teachers prompt learning problems and guide the direction of activities based on students’ existing knowledge and abilities, and students conduct independent research and self-select materials.  content_copy  share

Problems and countermeasures of popularizing the teaching of wireless screen sharing technology

Although the wireless presentation system technology is so amazing and easy to use, we found that it is mostly used in training or entertainment occasions. Not many people really enter the smart classroom teaching. Only a few teachers who love learning and tossing will try to use it. There are three possible reasons for this.

  1. The problem of ideology

Thoughts determine actions. If you don’t keep up with your thinking, you won’t be able to face these new technologies and new ideas with the correct mentality, and the same is true of screen sharing technology. Many leaders hold an attitude of disapproval of modern educational technology, believing that these are “grandfather” things and should draw a clear line. Because I don’t understand it, I feel uneasy, so I don’t do it. Of course, including some teachers, they also turn a blind eye to new technologies. This has also become the first barrier for new technologies such as screen sharing to enter the classroom.

  1. Software technical problems

The principle of screen sharing technology is not complicated, and there are many related protocols and ways, but there are not many software that are really easy to use. Apple users are better, and the built-in AirPlay is relatively simple, which can cast both pictures and sound, but Apple devices are relatively expensive after all. Android devices are more troublesome, especially devices below Android 5.0. Since the system has not released the system permission to capture the screen, the user must obtain the ROOT permission before the screen can be projected. Since Android 5.0, Google has provided developers with the corresponding interface for screenshots, so ROOT is not required. In addition, most Android screen projection software does not support sound data projection, which is one of the main reasons for the unsatisfactory Android screen projection effect.

  1. Network environment problems

After all, there are many inconveniences in the way of hardware connection, and wireless connection is still the first choice for teachers. However, most classrooms now do not have wireless network coverage, and even a wired network may not necessarily achieve “class communication”. Based on the above situation, we recommend that qualified schools rebuild the school network, install wireless APs in each classroom, and use the real-name authentication method to log in and use. If the multimedia equipment in the classroom is “computer + projector or computer + TV”, you can install the corresponding wireless screen sharing software on the computer, such as Apple Screen Recorder and AirPlay. If it is an all-in-one machine, in addition to installing the above software, you can also use screen mirroring software (such as Mirrorop). In this way, teachers can easily connect their mobile phones to TVs, computers, and all-in-one computers to realize screen projection no matter which classroom they go to.

The concept of leaders and teachers cannot be changed overnight, but many people of insight have already tasted the fruits of using modern educational technology to promote the success of education and teaching. Many grass-roots teachers have also become Internet celebrity teachers because of their daring to try and practice. We have reason to believe that soon more educators will join the ranks of researching and practicing new technologies.

At present, Awind wireless presentation system software and hardware products have reached cooperation with a number of domestic large-scale system integrators, and are used in smart classrooms in the education industry, office scenes in government units, video conferencing hardware support, training speeches, smart homes, large-screen games for game manufacturers, Home appliance manufacturers TV projection and many other fields.

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