Xiaomi officially launched its air-to-air charging technology, leading everyone into the true wireless era ahead of schedule. Through air charging piles, 5W charging can be achieved within several meters. Not only can it charge multiple devices, but it can also be charged while playing, even if it is blocked by foreign objects.
Air charging technology mainly includes two core technologies: spatial positioning and air energy transmission: first, the air charging pile needs to accurately detect the location of the mobile phone, and then send millimeter waves to the location in beamforming. Through the built-in antenna array of the mobile phone, the sent millimeter waves are received and converted into electrical energy, thereby realizing the air charging function.
According to the official introduction: Xiaomi’s self-developed air charging system*** has 17 technical patents, which is a demonstration of Xiaomi’s technical strength. Up to now, Xiaomi’s air charging technology can achieve 5W long-distance charging of a single device within a radius of several meters. It also supports charging multiple devices at the same time (each device supports 5W), and it will not be affected when blocked by foreign objects or when using a mobile phone.
Xiaomi’s air charging technology not only brings true wireless charging technology, but also opens up a new space for mobile phone wireless charging technology. As this technology continues to mature, air charging technology will become a standard feature of future smartphones. By that time, air charging technology will be more mature: higher power, longer distance, lower cost and lower selling price. Thinking of Wuhan’s wireless charging street lights, the future is endless.
In addition to smartphones, smart homes and smart wearable devices will also support air charging technology. Air charging technology makes the living room wireless, allowing smart homes and smart wearable devices to officially enter the era of true wireless charging. By that time, you no longer have to worry about finding a smart watch/ring charger. Xiaoai speakers can move freely and be online 24 hours a day. This is what smart homes should be like in the future.
Mobile phones consume electricity quickly and have large battery capacity. When charging a mobile phone, the most critical factor that has the greatest impact on the experience must be the charging speed. The charging speed is determined by the power. The low charging efficiency has undoubtedly become a barrier. One of the main obstacles between air charging and mobile phones.
Another major challenge in air-charging a mobile phone is that the mobile phone may be constantly moving, so the accurate positioning of the mobile phone becomes very critical. More accurate positioning can also significantly improve charging efficiency and avoid energy waste.
In addition to technical difficulties, in fact, during the early development of air charging, there were many doubts about the technology, some of which focused on whether it would affect human health.
In the early years, many people even believed that mobile phone signals and WiFi signals would produce radiation to the body and affect health, but in fact these radio waves are almost harmless to the human body.
For example, millimeter waves are different from alpha, gamma and beta rays. They do not produce chemical reactions on the irradiated objects, and thus do not cause any DNA changes in the objects. And there is currently no experimental data showing that millimeter wave radiation will have a negative impact on human health.
The air charging technology launched by Xiaomi today is more conceptual. The commercial use of air charging technology in the field of smartphones still needs to solve a series of issues including safety, regulations, cost, etc. It is conservatively estimated that it will take several years.