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Visual positioning and navigation method, device and terminal

A technology of visual positioning and navigation methods, applied in the field of Internet of Things, can solve problems such as map blind spots, map building errors, and large amount of calculation, and achieve the goal of reducing calculation amount, improving recognition efficiency and reliability, and low-cost indoor positioning and navigation experience Effect

Active Publication Date: 2022-03-18
CHINA TELECOM CORP LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Compared with lidar navigation, the cost of hardware is greatly reduced by using VSLAM technology. However, VSLAM technology requires a large amount of calculation, and the interior is easily affected by changes in furniture and furnishings. When the home structure is complex, it is easy to form map blind spots or map building errors.

Method used

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  • Visual positioning and navigation method, device and terminal
  • Visual positioning and navigation method, device and terminal
  • Visual positioning and navigation method, device and terminal

Examples

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Embodiment Construction

[0026] The present disclosure will be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments of the present disclosure are illustrated. The following will clearly and completely describe the technical solutions in the embodiments of the present disclosure with reference to the accompanying drawings in the embodiments of the present disclosure. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. Based on the embodiments in the present disclosure, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present disclosure.

[0027] The "first", "second" and so on in the following are only used to describe the difference, and have no other special meanings.

[0028] figure 1 It is a schematic flow chart of an embodiment of the visual positioning and navigation method according to t...

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Abstract

The present invention provides a visual positioning and navigation method, device, and terminal, wherein the method includes: establishing a key path based on key points and route information between key points, and obtaining key point contour features associated with key points; obtaining key paths The surrounding map information of the surrounding locations, including: the outline features of the surrounding locations, and the displacement information between the key locations; during positioning and navigation, the key locations adjacent to the current location are determined based on the outline features of the key locations, and the key locations are determined according to the surrounding map information and key locations. Location determines the location information for the current location. The method, device and terminal of the present invention can carry out manual intervention pre-learning training on key locations and paths, effectively reduce the amount of global graphic feature matching calculations, improve recognition efficiency and reliability, and provide users with accurate and low-cost indoor positioning navigation experience.

Description

technical field [0001] The present invention relates to the technical field of the Internet of Things, in particular to a visual positioning and navigation method, device and terminal. Background technique [0002] Home service robots have a wide range of applications and can complete services that are beneficial to humans. At present, home service robots are more and more used in homes. Household service robots such as sweeping robots need high-precision indoor positioning and navigation so that they can accurately reach the designated location and move according to the planned path. At present, in the navigation of home service robots, the visual real-time positioning and mapping technology VSLAM is used to build an indoor map based on the image information collected by the learning subsystem and the location of the terminal, and then realize positioning and navigation according to the current visual image and map-associated image feature matching . Compared with lidar n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05D1/00G05D1/02
Inventor 梁宇杰
Owner CHINA TELECOM CORP LTD
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