The function of collecting photos and files through face-to-face science popularization on WeChat public account does not consume data, does not require adding friends, and transfers original photos and paintings.

Today, the "WeChat Pai" public account published an article to popularize the "face-to-face photo and document collection" function in WeChat. Officials said that this function is quite "scummy". It focuses on only doing business, leaving no contact information, and leaving as soon as it is done.

Simply put,Users do not need to add friends or consume data, and can realize the original quality transmission of pictures, videos and files between different system devices.

So, how does this function realize "air feeding"?

According to reports, sending files through regular chat is more like the "express delivery mode": the user first uploads the content to the WeChat server, and then the server forwards it to friends. After the friend receives the file, the message is sent back to the server, and the server displays it on your WeChat interface.

The entire process has a long path and many links, which is not only time-consuming but also consumes network traffic.

The face-to-face collection of photos and documents falls into the "face-to-face mode."

If the mobile phone system is the same: After scanning the QR code, a temporary exclusive channel is established through "Wi-Fi point-to-point direct connection" technology for direct transmission.

If the mobile phone system is different:After scanning the code, WeChat will "build your own hotspot" to build a channel and complete the transmission.

WeChat stated that regardless of whether the systems are the same,The content is transmitted through exclusive channels and does not go through the Internet or servers, so it consumes no traffic at all.

In terms of security, this function also provides double protection:

The first is the "temporary password". Scanning the QR code face-to-face will generate a one-time voucher. Only two devices scanning each other can establish a connection and see the transmission content;

The transmission content is fully encrypted.Even if the signal is intercepted, only garbled characters can be seen.

Overall, collecting photos and files face-to-face takes into account efficiency, convenience and security. There is no need to add friends, no data consumption, and no system selection. It is especially practical in scenarios where content needs to be transferred quickly.