Method for detecting rotation angle of mobile terminal and camera thereof

Abstract

The invention discloses a detection device and a detection method of angled rotation of a camera of a mobile terminal. The detection device comprises a shell, a rotary camera component and a connecting piece used for connecting the shell and the rotary camera component, wherein a hall sensor is arranged on the shell, a magnet is arranged on the rotary camera component, the hall sensor and the magnet are arranged in parallel from top to bottom, the hall sensor is electrically connected to a signal processing circuit, the hall sensor is a digital hall sensor, setting of magnetic poles of the magnet is as follows: the pole S is upward and the pole N is downward. The connecting piece comprises a rotating shaft and an electric motor, one end of the rotary camera component and one end of the shell are connected through the rotating shaft, the other end of the rotary camera component and the other end of the shell are electrically connected through the electric motor. Quantized digital values are output by the digital hall sensor, and the output digital values are monotone increasing or monotone decreasing curves. According to the detection device and the detection method, a front camera and a back camera can be switched, the position of the rotary camera component is restored at a new call, a rotating angle is accurately detected, and the strong magnetic disturbance is effectively avoided.

Description

technical field [0001] The present invention relates to the field of mobile terminals, and more particularly, to a method for detecting a rotation angle of a mobile terminal and a camera thereof. Background technique [0002] With the development of science and technology, mobile terminals, especially mobile phones, have increasingly become an indispensable daily necessities for people, and some mobile phones are equipped with rotating cameras. How to detect the rotation of the rotating camera has become the key for engineers to develop mobile phones. [0003] At present, rotation detection is widely used in automotive electronics, but not in portable terminals, and the accuracy required for general applications is not high. Therefore, the implementation method is generally relatively simple. In addition to the consideration of cost and consistency, structural limit is generally used. For example, when the rotating part rotates to a fixed angle, the structure sticks out a po...

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Problems solved by technology

However, the detection of an angle is far from meeting people's needs for t

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