As we all know, Huawei's multi-screen collaboration function is one of the differences between Huawei and other digital products, and there are also cracks on Huawei's multi-screen collaboration function on the Internet.

First, Huawei's unique technology.

First, the principle of Huawei multi-screen collaboration

Huawei's multi-screen collaboration uses a number of technologies. According to Zhao Ge's data in August, Huawei's multi-screen collaborative pairing uses NFC logo, uses Bluetooth to provide simple connection, and then negotiates WIFI parameters for data connection.

In data and image transmission, rtsp streaming media technology and Huawei patented video coding H265 technology are adopted. In terms of hardware, the principle of cross-screen synchronization is realized by HEVC converter.

B. Huawei's multi-screen collaboration is innovative.

In Huawei's multi-screen collaboration, firstly, the devices are planned, so that NFC tags can record each other's information, such as Bluetooth protocol, address and password. The mobile phone can quickly connect by reading this NFC information. Without this NFC function, when we connect, we need to find Bluetooth first, then pair up, and then start the protocol to build a small wifi together, which takes a long time, has many tasks and is troublesome to operate.

After establishing the connection with the other party, Huawei also reformed the protocol and data connection mode of the air interface connection layer, which increased the bandwidth and made the picture more synchronous.

C, Huawei's profound technology

Huawei's multi-screen collaboration can also achieve multi-screen collaboration on two devices, such as computers and tablets. This feature requires the ability and technology to make changes at the operating system level. We know that Huawei has replaced the bottom layer of Android a little bit, and Huawei is the main technical contributor of the wifi Association, and has a number of patented technologies in video, so Huawei has the ability and level to develop high-level and distinctive multi-screen collaboration.

Second, Xiaomi's multi-screen collaboration.

These days, Xiaomi 1 1 was released by mobile phone, and I only watched it for less than ten minutes. After the meeting, there suddenly appeared an overwhelming praise on Xiaomi's multi-screen collaboration on the Internet, and some Xiaomi of Huawei also had favorable comments. This is because Huawei's multi-screen collaboration is not only technology accumulation, but also uses many patented technologies, such as wifi+ and video h265. This is the moat of Huawei. So I found some information to explain it to you.

A, scan code connection

According to the video of netizens, we need to download an APP on the computer and scan the code to connect. This software is called intelligent interconnection. Through this software, two devices use the network to establish a special communication channel, which can be played on the other device through the principle of screen projection when operating on the mobile phone.

If the other device is a smart watch, how to install such a big APP, and Huawei has already realized the display of the mobile phone map on the smart watch.

B. The status of Xiaomi's multi-screen collaboration

According to Zhao Ge's thinking, Huawei changed the protocol from the data layer and the bottom layer of OS. If other software wants to realize this multi-screen collaboration function, it only needs to add a Huawei standard data interface to the software, and any software can realize it.

Xiaomi's multi-screen collaboration needs to rewrite the code itself in any APP. Compared with the two, Huawei's approach is once and for all.

C. What did Xiaomi learn from Huawei?

A: I understand the rudiment of this function, that is, visually and psychologically, users have the function of multi-screen collaboration. In reality, there is still a considerable gap in application. Not to mention the hardware part, the software part alone can realize Huawei's speed, and it needs to start from the middle layer of Android. Google will never allow any Android vendor to intervene in the middle tier, even if it asks Qualcomm to mediate, it will not agree. Needless to say, Huawei has also made outstanding contributions to the in-depth research of liux.

Third, who has multi-screen collaboration technology?

I found the multi-screen collaboration of two brands on the Internet, and suddenly found that Xiaomi is very familiar with this multi-screen collaboration. Isn't this the screenshot demonstration function of 360 mobile assistant? So, I quickly downloaded this software, and through the mobile assistant, I quickly realized the multi-screen collaboration of OPPPO mobile phone, and unlike Xiaomi, it must be Xiaomi brand, and I can do whatever I want.

A.OPPO mobile phone establishes connection.

First, download mobile assistants on computers and OPPO phones. Open the developer option function of the mobile phone, in addition to the data cable, there is also the same scan code connection as Xiaomi.

B, open the demonstration function of the mobile assistant.

Open the phone settings in advance-developer options-allow USB debugging.

Next, click the demo function on the computer, so that the screen of the mobile phone can be projected on the computer, and you can operate the mobile phone by clicking the screen of the mobile phone on the computer screen with the mouse.

C. See how to make OPPO mobile phones have multi-screen collaboration through small videos.

Fourth, personal speculation.

Xiaomi originally wanted to make rice noodles conform to Huawei's ideas, but because of technology or patent or time constraints, he only learned Huawei's ideas and made fans feel like catching up with Huawei through APP. In fact, I secretly learned 360 mobile phone connection technology. By learning some functions of mobile assistants, we can meet the slogan of multi-screen collaboration.

Therefore, personal guess is just a guess. If the guess is incorrect, please give an example to discuss.

Personally, everyone always thinks that Xiaomi is learning from Huawei, but in fact he is transplanting or learning or imitating some functions of 360. Of course, it is foreseeable that what is realized by software can't be said to be a chicken rib, but the bandwidth is definitely insufficient. Of course, fans have enough of these functions and still don't understand Huawei's advanced technology.

Finally, post a Huawei NFC map made by yourself to pay tribute to Huawei's contribution to high technology.