Nowadays, smart phones continue to develop, and smart phones have become common consumer goods in people's daily lives. New mobile phones are constantly being introduced, and people are changing their phones faster and faster. You must have heard the concepts of quad-core and octa-core processors, soft light dual-camera, tens of millions of pixels, full-screen mobile phones, etc., which have become your selection criteria. But among the smart phones, there may be some very small but important accessories you may not have heard of, and they are easy to be overlooked, such as gyroscopes. Here is an answer to the gyroscope in the mobile phone for everyone.
What is a gyroscope
The gyroscope mentioned here, also called angular velocity sensor, is a device developed and researched for device sensing and maintaining direction based on the theory of conservation of angular momentum. Simply put, a gyroscope is a device upgraded from an acceleration sensor. The acceleration sensor can only detect and sense the linear motion that occurs on a certain axis. It measures the angular velocity of rotation when the physical quantity is deflected or tilted, and then completes the identification of the direction and the calculation of the angular velocity. On a mobile phone, it is impossible to measure or reconstruct a complete 3D motion with only an accelerometer. If the rotating motion cannot be detected, the G-sensor can only detect the linear motion in the axial direction. But the gyroscope can make a good measurement of the movement of rotation and deflection, so that the actual movement of the user can be accurately analyzed and judged. Finally, according to this action, and then carry out the corresponding operation on the mobile phone.
What is the role of gyroscope in mobile phones
In fact, the concept of gyroscope originated from the French physicist Lyon. Fukou was inspired by the study of the rotation of the earth in 1850 and came out with the study of valves. In the mobile phone industry, Apple’s godfather, Steve, was the first to use gyroscopes in the mobile phone field. Jobs.
At present, the most successful application of gyroscopes in consumer products is to use Wii Motion Plus as a somatosensory gamepad to control the game. As long as the player holds the Wii MoTIon Plus controller, they can control the game video on the screen through their own actions, play table tennis, tennis and other sports games, or turn the controller, you can play video games of driving. Secondly, it is the air mouse (flying mouse). By moving the mouse in the air, the cursor on the screen can be controlled to move up and down and left and right flexibly.
mobile game. Through the gyroscope, the mobile phone is tilted slightly, or the mobile phone is deflection angle and other actions to complete the task direction and visual deflection in the game, such as Need for Speed ​​and PlayerUnknown's Battlegrounds.
Mobile phone location map navigation. We all use mobile phone maps for positioning or navigation for vehicles. The mobile phone can calculate the current location based on the previously located location and the movement speed, time and direction detected by the gyroscope to achieve the purpose of temporary positioning.
Video stabilization. The gyroscope can measure the turning angle of the phone to help the camera anti-shake. Generally speaking, when you press the shutter, the gyroscope detects the angle of the phone shake, and then calculates the distance that the lens module needs to compensate based on the angle. Let the lens move in the reverse direction to offset the shaking of the mobile phone, so as to realize the absolute stillness of the lens at the moment of shooting, and reduce the damage caused by the shaking to the video through software technology.
Does the phone have a gyroscope?
Today's mobile phones have integrated the technology of gyroscopes. Gyroscopes have become a standard configuration of smart phones, and the cost of equipping a mobile phone gyroscope is about 10 yuan.
Although the gyroscope is a very inconspicuous accessory, we have long been accustomed to its role in our mobile phones. Every smart phone is an integration of many technologies. It is precisely because of the application of these technologies that we have the convenience brought to us by smart phones today.
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