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Non-visible laser calibrating indoor positioning navigation method and system

An indoor positioning and navigation method technology, applied in navigation, mapping and navigation, radio wave measurement systems and other directions, can solve the problems of weak anti-interference ability, difficult maintenance, and high cost, and achieve strong anti-interference ability, easy maintenance, and low cost. Effect

Active Publication Date: 2017-05-31
XIAN KISSFUTURE NETWORK TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a non-visible laser calibration indoor positioning and navigation method and system, which solves the technical problems of low precision, high cost, weak anti-interference ability and difficult maintenance of the existing positioning system

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  • Non-visible laser calibrating indoor positioning navigation method and system
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  • Non-visible laser calibrating indoor positioning navigation method and system

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Embodiment Construction

[0044] The invention will be further described below in conjunction with the accompanying drawings.

[0045] Principle of the present invention:

[0046] The present invention is based on the principle of visual perspective, and obtains the size and deformation of the graphics emitted by the laser calibration device by calculating the camera on the positioning module and deduces the distance and angle of the positioning module relative to the positioning graphics, and then obtains the nearest laser calibration device Combined with the positioning data in the navigation system, the actual coordinates of the positioning point are calculated.

[0047] Such as figure 1 As shown, in the present invention, priority is given to using an infrared fisheye camera (greater than or equal to a viewing angle of 180 degrees) to achieve the maximum range of recognition, but it does not rule out the use of a wide-angle or ordinary camera with a smaller viewing angle in a specific environment....

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Abstract

The invention provides a non-visible laser calibrating indoor positioning navigation method and a system, in order to solve the technical problems of low precision, high cost, weak anti-jamming capability and difficulty in maintenance of the present positioning system. At least one laser calibrator is used for sending a reference image to a roof or wall; the laser calibrator is used for emitting non-visible laser; a camera of a to-be-positioned device on the ground is used for generating the reference image into an imaged image; an elevation angle and a rotation angle of the center of the camera relative to positioning points p1 and p2 in the reference image can be reversely calculated according to the imaging position and distance of the positioning point; the elevation angle and the rotation angle of the center of the camera relative to each positioning point can be calculated; a three-dimensional coordinate of the center of the camera is calculated according to the elevation angle and the rotation angle of the center of the camera relative to each positioning point, so that the to-be-positioned device can be positioned or navigated. The system has the advantages of high precision, low cost, strong anti-jamming capability and convenience in maintenance.

Description

technical field [0001] The present invention relates to an indoor positioning method and system, in particular to an indoor positioning method and system suitable for VR / AR systems Background technique [0002] The existing high-precision indoor positioning system adopts the following two positioning principles: SLAM technology or ultra-wideband technology. But it has the following disadvantages: [0003] 1. High cost: the cost of the depth camera used in SLAM technology and the base station used in ultra-wideband technology remain high [0004] 3. Weak anti-interference ability. SLAM is to identify the environment, but when the environment structure changes, SLAM technology cannot match the two, and the electromagnetic waves used by ultra-wideband technology will also be interfered by other devices, causing position accuracy to fluctuate [0005] 4. Not easy to maintain. SLAM technology requires the environment to remain unchanged, while ultra-wideband technology requir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/00G01C1/00G01C15/00G01S11/12
CPCG01C1/00G01C15/008G01C21/005G01S11/12
Inventor 林莹王璐
Owner XIAN KISSFUTURE NETWORK TECH CO LTD