As we all know, the distance of watching TV is related to eye health: the closer you are to the TV, the stronger the contraction force of the rectus muscle in the eye, and the easier it is to cause visual fatigue, especially children due to lack of self-control, will unconsciously be close to the TV . If the TV is equipped with a tof camera human proximity detection solution, once it detects that the human body enters a certain range, it will automatically dim or turn off the display backlight and issue a warning to remind users to stay away from the TV and protect their eyesight.
One or more tof cameras are installed on the smart TV to detect the distance of moving objects that are approaching from multiple angles, so as to respond accordingly. Then smart TV will remind us to protect our eyesight.
In addition to human proximity detection, the tof camera can also be used with the camera of the smart TV to achieve autofocus. At present, there are two mainstream camera focusing schemes. One is the focusing scheme based on CCD semiconductor imaging devices, which uses the principle of light reflection from objects. The light reflected from the object is received by the sensor CCD on the camera, and processed by computer to drive the electric focusing. device to focus. As the pixels of the camera get higher and higher, the focusing time will be longer and longer. The other is the focusing scheme of ranging. Using tof camera, the focusing distance can be directly given, which improves the focusing speed. Compared with other focusing schemes, the speed is faster and the cost is lower.
The development of smart home has expanded the application market of sensors, and tof camera has a wider range of application scenarios and can be used in many daily home appliances to further upgrade the smart home industry and help the intelligentization of home appliances.
