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Rotation angle detection device and method

A technology of rotation angle detection and rotation vector, which is applied to measuring devices, instruments, optical devices, etc., can solve problems such as inability to detect at any angle, and achieve the effect of overcoming limitations

Active Publication Date: 2015-03-04
UHDEVICE ELECTRONICS JIANGSU CO LTD
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to provide a rotation angle detection method, which uses image processing technology to detect the rotation angle, so as to solve the problem that any angle cannot be detected in the prior art

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Embodiment Construction

[0029] The specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0030] see figure 1 As shown, it is a schematic diagram of the distribution of an image sensor array implementing the rotation angle detection device of the present invention. The image sensor array is divided into a plurality of image sensor blocks, which are distributed in a ring shape to form a sensor ring. And during implementation, multiple (such as K) sensor rings can be provided, and these image sensor rings are arranged concentrically, and each sensor ring then includes N image sensor blocks, and each frame of the image thus formed is composed of K* It consists of N pixels. Of course, in actual implementation, the image sensor block may be a smaller image sensor array, and the pixel value of the image sensor block is obtained by obtaining the average value of the pixels of the image sensor array.

[0031] exist figure 1 In the illustrated...

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Abstract

The invention discloses a rotation angle detection device and method. The method comprises the following steps of: dividing an image sensor array into a plurality of image sensor blocks and annularly distributing the image sensor blocks to form a sensor ring, extracting pixel values of all the image sensor blocks of the sensor ring to form an annular image frame, carrying out rotation displacement processing on the annular image frames of an original image frame and a current image frame to obtain a comparing frame, and determining a rotation vector through the relevant operation of the comparing frame, thus realizing rotation angle detection by utilizing an image processing technology. The limitations of a conventional rotation detection device are overcome, and the application of the rotation detection device on a portable electronic device is benefited, so that a user can realize the rotation operation of a controlled object at any angle.

Description

technical field [0001] The invention relates to a detecting device and a detecting method, in particular to a device and a method for detecting a rotation angle. Background technique [0002] The detection of the current rotation angle is mostly detected by the rotation sensor, and the rotation sensor also detects the magnitude of the mechanical deformation or the mechanical force, or judges the rotation angle through the change of the capacitance or resistance value. This method has shortcomings. The components are large in size and difficult to install on some portable electronic devices. In the existing portable electronic devices, the rotation angle of the picture is usually fixed, that is, MEMS devices such as gravity sensors usually sense the direction of the electronic device. Accordingly, the picture is converted between the horizontal screen and the vertical screen display mode accordingly, that is, only a 90-degree transformation is performed, which cannot be appli...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/26
Inventor 刘建
Owner UHDEVICE ELECTRONICS JIANGSU CO LTD
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