VR education: Can you enter the classroom and realize real lessons? Micro vision cool to do good!

“We had heard that Mr. Xu was going to give us a VR class and we were very excited! Do you know what VR is? It is a kind of high-tech glasses. When you put on it, it turns the imaginary things into real things. We also called it the 'virtual world.' When we hadn't yet entered the classroom, we were especially looking forward to it and we couldn't wait to feel it. After we entered the classroom, the students spontaneously made amazing sounds. Some students said, 'Wow, This is VR ah! 'Some students also said: 'This is high-tech?' Some students eyed the 'big glasses' on the table, and wondered how this thing ah?

Some time ago, Beijing Microvision Cool Technology Co., Ltd. (hereinafter referred to as “Microview Cool”) received such a letter from Peixian Elementary School students in Beijing. The students wore VR glasses under the command of the teacher, in an orderly manner. Virtually flying to a particular star in the solar system, immersively observing the sun and every planet, students have virtually mastered the required teaching knowledge. After having attended a VR class organized by Weishiku United School, the student students expressed such emotion.

“Began to use, Xu teacher let us wear 'big glasses', I fear for breaking this expensive and expensive thing, carefully put on his head. I am in the classroom? I clearly walked into a courtyard. I Left-kick and right-kick, they stood in the courtyard; I took a look and looked down, and there were door lions, pillars, flowers and grass in my eyes, and I could reach out with my hand. This was incredible! The realistic virtual scene put me in a position Among them, completely intoxicated."

The “VR Classroom” where students are immersed is supported by the “IES Immersive Classroom” system independently developed by Weishi Cool. Weishiku is the professional R&D organization for VR education software in China and the first domestic company to have virtual reality (VR). ) The hi-tech enterprise that is systematically applied to teaching is technically committed to creating a real VR classroom. Each set of VR glasses provided by Weishiku can be controlled both centrally and independently. The teacher can control student VR glasses according to the needs of teaching and control VR teaching content at any time; it also allows students to learn independently, and VR classes allow them to learn. Become more intuitive, vivid, interesting and efficient. And also has an exclusive one-button control function, the teacher's system platform can control all students learning a key, the entire process can be monitored to prevent students from desertion; a key statistics data for all VR glasses, a key to print classroom learning results, timely adjustment of teaching strategies.
“A class will soon be classed, and we are still full of meaning. This VR class can not be allowed to make it invisible to see, had to let me sigh: technology is power!” As experienced the micro-vision cool VR classroom The students said that in the 21st century, science and technology are the primary productive forces, and Weishi as an emerging technology company. The VR education development model it explored in the education field represents, to some extent, the future direction of education, with VR technology. With the progress made, people's acceptance of VR education is getting higher and higher. We believe that the prospects for the development of VR education will become better and better.

HDMI Input

HDMI, known as High Definition Multimedia Interface, is mainly used for transmitting HD audio and video signals.


There are three types of data transmitted by HDMI TMDS (plus Hsync and Vsync count as four) :

1.Preamble (control information) is mainly used to control the Data to be transmitted next, namely Data Island or Video Data

2.Data Island, all kinds of packet information, including audio packet, image packet, etc

3.Video Data, Video pixel Data. HDMI can transmit pixel Data in RGB and YUV formats

4. And Hsync and Vsync


HDMI Source device (HDMI HPD) will monitor the Hotplug port of the sink device. If the Hotplug is High, it will prove that the device can work, and then read DCC; if it is low, it will prove that the device is disconnected.


The HDMI Sink device should notify the source device that EDID has been changed by pulling the Hotplug down, and the source device will read the new EDID again after the Hotplug is pulled up, which should be more than 100ms.


HDMI provides that the EDID can be read by DCC when the 5V pin of HDMI is powered on, that is, the Hotplug needs to be high, and some Hotplug is directly connected to the 5V


TMDS Clock is the Pixel Clock, the Clock frequency used for a Pixel point. Through TMDS Clock CLK pins transmitted to the receiver, but the receiver is not clear for what TMDS Clock frequency of the sender sent, so you need to through the Phy (Phy is analog to digital conversion section, is different from the ADC, Phy is don't know the sampling frequency, the need to lock frequency and phase lock, detect the exact input frequency) to lock.

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