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High precision positioning navigation system and method

A positioning and navigation, high-precision technology, applied in the field of positioning and navigation, can solve the problems of collision, low operation efficiency of take-off and landing field, inaccurate position information, etc., to achieve reliable position information, improve operation efficiency, and overcome the effects of low positioning accuracy.

Inactive Publication Date: 2018-11-06
SF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the outdoor positioning of UAVs mainly relies on GPS, and the positioning accuracy of civil GPS is several meters. Therefore, when UAVs are used on a large scale, the operating efficiency of the landing field is too low; and if the GPS is blocked, the positioning accuracy will drop. When drones are used on a large scale, there is a risk of collision due to inaccurate position information

Method used

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  • High precision positioning navigation system and method

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0054] This embodiment relates to a high-precision positioning and navigation system, which includes:

[0055] first positioning module,

[0056] The second positioning module,

[0057] The inertial measurement module is used in conjunction with the first positioning module to form the first navigation mode, used in conjunction with the second positioning module to form the second navigation mode, and used in conjunction with the first positioning module and the second positioning module to form the third navigation mode; as well as

[0058] control module;

[0059] The control module can control the positioning and navigation system to switch among the first navigation mode, the third navigation mode, and the second navigation mode according to the height and position information of the object to be navigated for positioning and navigation.

[0060] In the positioning and navigation system, the first positioning module is used in conjunction with the inertial measurement m...

Embodiment approach 2

[0088] This embodiment relates to a high-precision positioning and navigation method, which includes the following steps:

[0089] Obtain the approximate height and position information of the object to be navigated;

[0090] According to the approximate height and position information of the object to be navigated, determine the spatial field where the object to be navigated is located, and start and / or switch to the corresponding navigation mode for positioning and navigation;

[0091] among them, including

[0092] Judging whether the object to be navigated is located at the first spatial position, if so, starting and / or switching to the first navigation mode;

[0093] Judging whether the object to be navigated is located at the second spatial position, if so, starting and / or switching to the second navigation mode;

[0094] Judging whether the object to be navigated is located in the third spatial position, if so, starting and / or switching to the third navigation mode. ...

Embodiment approach 3

[0127] This embodiment relates to an aircraft, on which the high-precision positioning and navigation system described in Embodiment 1 is installed, and the aircraft is positioned and navigated according to the high-precision positioning and navigation method described in Embodiment 2.

[0128] The above-mentioned aircraft is preferably an unmanned aerial vehicle. For detailed descriptions of the above positioning and navigation system and positioning and navigation method, refer to Embodiment 1 and Embodiment 2 respectively, and repeated descriptions are omitted here.

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Abstract

The invention relates to a high precision positioning navigation system and method. The system includes a first positioning module, a second positioning module, and an inertial measurement module, theinertial measurement module cooperates with the first positioning module to form a first navigation mode, and cooperates with the second positioning module to form a second navigation mode, and the first positioning module and the second positioning module is used in combination to form a third navigation mode; and a control module; the control module is capable of controlling the positioning navigation system to switch among the first navigation mode, the third navigation mode and the second navigation mode to locate and navigate according to the height and position information of the objectto be navigated. The positioning navigation system has different positioning navigation modes, and can be adjusted to an appropriate navigation mode according to the height of the object.

Description

technical field [0001] The invention relates to the field of positioning and navigation, in particular to a high-precision positioning and navigation system and method. Background technique [0002] With the rapid development of modern information technology, the application of drones has penetrated into various industry scenarios such as security monitoring, power inspection, and intelligent maintenance. Ensuring the precise take-off and landing of UAVs is the prerequisite for safe flight. Therefore, UAVs must have three functions of perception, cognition and action. Among them, realizing the perception of the environment is a necessary condition for autonomous flight of UAVs. Due to the complexity of the flight process of the UAV and the uncontrollable factors in the flight environment, the precise positioning of the UAV plays a decisive role in stabilizing the flight. [0003] Under the large-scale application in the industry, the take-off and landing site of drones usua...

Claims

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Application Information

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IPC IPC(8): G01C21/16G01S19/47
CPCG01C21/165G01S19/47
Inventor 陈娟
Owner SF TECH