Two-dimensional plane positioning method and device, projection control method and device, and mobile phone
A two-dimensional plane and positioning device technology, applied in the field of positioning, can solve the problems of high cost and slow calculation speed, and achieve the effect of improving positioning efficiency and simple calculation method
Inactive Publication Date: 2019-04-05
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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Problems solved by technology
[0003] In the existing technology, the positioning of the target point on the two-dimensional plane often has a process load and takes up a lot of computing resources, resulting in slow operation speed and high cost.
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[0064] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0065]It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embod...
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The invention provides a two-dimensional plane positioning method and device, a projection control method and device, and a mobile phone. The positioning device comprises: a first ranging unit, configured to measure a first distance between a target point and the first ranging unit, wherein the target point is located on a two-dimensional plane; a second ranging unit, configured to measure a second distance between the target point and the second ranging unit; a modeling unit, configured to establish a plane coordinate system on the two-dimensional plane, determine a first coordinate of a first projection point projected by the first ranging unit on the plane coordinate system, and further determine a second coordinate of a second projection point projected by the second ranging unit on the plane coordinate system; and a calculation unit, configured to determine a third coordinate of the target point on the plane coordinate system according to the first coordinate, the second coordinate, the first distance and the second distance, wherein a connecting line between a first projection device and a second projection device is parallel to the two-dimensional plane, and the distance between the connecting line and the two-dimensional plane is not greater than a preset distance, so that the positioning efficiency is improved.
Description
technical field [0001] The invention relates to the field of positioning, in particular to a two-dimensional plane positioning method and device, a projection control method and device, and a mobile phone. Background technique [0002] In the existing technology, projection technology is widely used in various aspects. For example, the physical keyboard can be omitted by projecting the keyboard, but to realize the projection keyboard, it is necessary to locate the point clicked by the user, that is, it is necessary to try the target in the two-dimensional plane. The location of the point, and then determine the instruction input by the user according to the button corresponding to the coordinate of the positioned target point. [0003] In the prior art, the positioning of the target point on the two-dimensional plane is often process-loaded and takes up a large amount of computing resources, resulting in slow computing speed and high cost. [0004] Therefore, it is an urgen...
Claims
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Login to View More IPC IPC(8): G01C21/20G01S15/08G01S17/08
CPCG01C21/20G01S15/08G01S17/08
Inventor 陈济洲陈灿坚覃广志
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI