Route-free navigation algorithm and system applying satellite positioning

A technology for route navigation and application of satellites, applied in the field of satellite navigation, can solve problems such as lack of navigation capabilities, and achieve the effect of saving later maintenance and upgrade costs

Active Publication Date: 2022-07-08
GLOBALTOUR GROUP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All of the above technical solutions partially or completely rely on the existing proven paths, and also lack navigation capabilities in the face of application scenarios with no recorded paths at all.

Method used

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  • Route-free navigation algorithm and system applying satellite positioning
  • Route-free navigation algorithm and system applying satellite positioning
  • Route-free navigation algorithm and system applying satellite positioning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] as attached figure 1 As shown, a pathless navigation algorithm using satellite positioning, the navigation algorithm includes the following steps:

[0046] S1: Determine the coordinates of the starting point and target point of the moving subject through the satellite positioning system, and determine the action ability of the moving subject;

[0047] S2: Plan the scope of action that may be covered;

[0048] S3: Perform grid division on the action range, and record the latitude and longitude coordinates of the vertices of each divided grid;

[0049] S4: Determine the surface features within the action range through satellite remote sensing images, and determine multiple grids suitable for the moving subject within the action range based on the surface features of the multiple grids;

[0050] S5: Track the real-time position of the moving subject through a satellite positioning system, and perform short-distance planning of a temporary path inside the grid of the real...

Embodiment 2

[0093] This embodiment should be understood as including at least all the features of any one of the foregoing embodiments, and further improved on the basis thereof;

[0094] Further, satellite remote sensing images have certain defects, such as insufficient resolution, general classification accuracy of surface features by spectral characteristics, etc. Therefore, in this embodiment, the ground information acquisition module provided on the moving subject is included to analyze the surface features. data for further collection and analysis;

[0095] In one embodiment, the ground information acquisition module includes a scanning device configured with a laser radar, and further judges and analyzes the environment around the moving subject, including combining and analyzing the data of the ground information acquisition module and the satellite information acquisition module;

[0096] as attached Figure 5 As shown in the figure, in order to use the lidar scanning device, af...

Embodiment 3

[0103] This embodiment should be understood as including at least all the features of any one of the foregoing embodiments, and further improved on the basis thereof;

[0104] In order to further analyze and obtain more accurate surface features, the ground information acquisition module includes using an RGB image sensor to obtain current ground information, and establishes a surface feature analysis model through a deep learning method, so that the surface feature analysis model can be combined with satellite remote sensing. Map image data to achieve more accurate classification of surface features;

[0105] Among them, the preliminary classification of surface features can be divided into seven categories, including: grass, soil, rock, ice, shallow water, asphalt roads, large obstacles, and includes mixed types in the seven categories;

[0106] Further, it includes further subdivision of the above seven types of land types, such as green grassland, dry grassland, loose sand...

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Abstract

The invention relates to a path-free navigation algorithm and system applying satellite positioning. The system comprises the following steps: acquiring the action capability of a mobile subject by a navigation system so as to ensure that an acquired navigation path is suitable for the action of the mobile subject; secondly, a satellite information processing module analyzes ground features on the basis of satellite remote sensing images and cooperates with a ground information acquisition module arranged on the mobile body to analyze the short-distance ground in real time, and multiple action intervals suitable for the mobile body are determined; a plurality of optimized line segment models are further obtained through iteration of a random sampling consistency algorithm in the action interval, so that multiple segments of short-distance paths capable of being continuously connected are formed, meanwhile, the proper moving speed is calculated, and the moving subject is guided to move towards the target point. Through the navigation system, immediate navigation calculation and temporary navigation path planning are realized in an open environment without planning a navigation path, and a solution under a path-free navigation condition is considered from a macroscopic perspective.

Description

technical field [0001] The invention relates to the technical field of satellite navigation. Specifically, it relates to a pathless navigation algorithm and system using satellite positioning. Background technique [0002] As human beings develop and utilize the earth's land more and more frequently, the coverage has increased significantly in recent years, and people's demand for mobile traffic planning on unknown land has also increased significantly. However, it is unrealistic to carry out route planning in most areas with unbuilt roads or immature road systems, and with the continuous development of dirt roads, the known routes will quickly fail, thus wasting a lot of time and manpower for planning navigation routes. cost. With the improvement of satellite positioning technology and the development of computer graphics computing technology in recent years, the use of satellite positioning and the navigation function of unplanned route areas has become a solution for pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/34G01S19/39G01S19/42G01C21/28G06V20/13G06V10/44G06V10/764G06V10/82G06N3/04G06N3/08
CPCG01C21/3446G01C21/3407G01C21/28G01S19/39G01S19/42G06N3/08G06N3/045G06F18/241
Inventor 张卫平丁烨岑全向荣丁园
Owner GLOBALTOUR GROUP LTD
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