Augmented reality positioning method based on real-time dynamic carrier phase difference technology
A carrier phase difference and augmented reality technology, applied in satellite radio beacon positioning systems, radio wave measurement systems, measurement devices, etc., can solve the problems of insufficient time for superposition, poor coordinates between the virtual world and the real world, and poor integration and other issues to achieve the effect of enhancing the coordinates
Active Publication Date: 2020-04-10
以见科技(上海)有限公司
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Problems solved by technology
However, at present, there are still problems such as insufficient timeliness and accuracy of superimposition between the virtual world and the real world, especially outdoors, because the current GPS positioning technology has a certain delay, and the GPS positioning accuracy of mobile devices is not high, which makes real-time monitoring impossible. Positioning will also lead to a direct difference in coordinates between the virtual world and the real world, resulting in their inability to be well integrated, and even after the coordinates are synchronized, the superposition accuracy is not high, which brings a very unfriendly experience to users
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[0023] The present invention will be further described below in conjunction with embodiment:
[0024] see figure 2 , the general process of this embodiment is as follows: the RTK position is consistent with the position of the mobile device, and the position of the real object that needs to be superimposed by AR is determined;
[0025] Then the mobile device is turned on, and the camera space Cartesian coordinate system is established; the RKT device is turned on, and the BLH coordinates (coordinates in the earth coordinate system) of the mobile device are obtained in real time; at the same time, the BLH coordinates (coordinates in the earth coordinate system) of the real object are obtained;
[0026] Then interpolate and optimize the BLH coordinates of the mobile device and the BLH coordinates of the real object; then convert the optimized BLH coordinates into the coordinates of the space Cartesian coordinate system (world coordinate system);
[0027] At the same time, the ...
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The invention discloses an augmented reality positioning method based on a real-time dynamic carrier phase difference technology. The method comprises the following steps: S1, RTK technology and optimization: S1.1, equipment composition; S1.2, obtaining positioning point GPS information given by the RTK, processing the positioning point GPS information obtained by the RTK, and obtaining coordinates of the positioning point in a geodetic coordinate system; S2, converting the geodetic coordinate system into a space rectangular coordinate system; S3, unifying a space rectangular coordinate systemand a world coordinate system in AR; and S4, overlapping the AR images at the real position. According to the invention, high-precision superposition of an augmented reality scene (virtual world) anda real scene can be realized, and real-time synchronization of coordinates of the augmented reality scene and the real world can be realized in the whole process.
Description
technical field [0001] The invention relates to a positioning technology, in particular to an augmented reality positioning method based on real-time dynamic carrier phase difference technology. Background technique [0002] Augmented Reality (AR for short) is a technology that calculates the position and angle of camera images in real time and adds corresponding images, videos, and 3D models. The goal of this technology is to integrate the virtual world with reality on the screen. The world is overlaid for further interaction. [0003] At present, this technology has achieved relatively mature development, which is mainly reflected in various AR glasses, AR helmets and other products. However, at present, there are still problems such as insufficient timeliness and accuracy of superimposition between the virtual world and the real world, especially outdoors, because the current GPS positioning technology has a certain delay, and the GPS positioning accuracy of mobile devic...
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IPC IPC(8): G01S19/44G01S19/41
CPCG01S19/41G01S19/44
Inventor 罗锋蒋童张勋
Owner 以见科技(上海)有限公司