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A method and device for unmanned aerial vehicle positioning for search and rescue scenarios

A search and rescue, positioning method technology, applied in the direction of positioning, wireless communication, radio wave measurement system, etc., to avoid the limitation of ground terrain and reduce the cost of hardware

Active Publication Date: 2022-07-19
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the Chinese patent with publication number CN112558111A and public announcement date of 2021.03.26 - a method and device for positioning UAVs uses two known test points to correct the multi-anchor positioning results of UAVs , but still requires multiple base stations to realize the positioning of the UAV

Method used

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  • A method and device for unmanned aerial vehicle positioning for search and rescue scenarios
  • A method and device for unmanned aerial vehicle positioning for search and rescue scenarios
  • A method and device for unmanned aerial vehicle positioning for search and rescue scenarios

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Experimental program
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Effect test

Embodiment 1

[0038] The invention relates to the field of unmanned aerial vehicles and positioning, in particular to a method and equipment for unmanned aerial vehicle positioning oriented to search and rescue scenarios. The invention utilizes the movement of the unmanned aerial vehicle, combined with the base station ranging and positioning process, and based on the Euclidean geometry theory, realizes the positioning of the rescuers with lower calculation and communication costs.

[0039] like figure 1 As shown, the method for locating an unmanned aerial vehicle for a search and rescue scenario according to Embodiment 1 of the present invention includes the following steps.

[0040] S1. After the rescuer releases the drone, the drone lifts vertically to a certain height, hovers, and uses the altitude measurement module to obtain altitude information.

[0041] The hovering altitude of the drone can be the altitude determined by the rescuer through the control device, or the altitude speci...

Embodiment 2

[0063] image 3 It is a schematic structural diagram of the unmanned aerial vehicle equipment oriented to the search and rescue scene of the present invention, including:

[0064] The altitude measurement module is used to measure the altitude information of the drone and store it in the storage module, so as to determine the projection plane and ensure that it is on the same horizontal plane when moving. It can be based on various methods, for example, the air pressure can be measured by an air pressure sensor, and then the altitude information can be obtained.

[0065] The communication module is connected to the storage module, obtains measurement data from the storage module, communicates and exchanges information with the base station, obtains measurement data such as mutual height information and the final positioning result and stores them in the storage module.

[0066] The ranging module is used to measure the distance between the base station and the UAV and store i...

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Abstract

The invention discloses an unmanned aerial vehicle positioning method and equipment for search and rescue scenarios, and relates to the field of unmanned aerial vehicles and positioning. The UAV is equipped with a height measurement module, a communication module, a ranging module, a moving distance measurement module, an angle measurement module, a storage module and a calculation module. The positioning method includes the following steps: firstly, the drone lifts off into the air, and the height measurement module is used to obtain the height information, and the projection plane is determined accordingly; then the distance measurement process is performed to obtain the distance information from the base station to the drone; and then the current position is used as the origin. , establish a virtual coordinate system, and move forward along the positive axis; stop moving after a certain distance, use the moving distance measurement module to measure the forward distance, and perform the ranging process to the base station; then select a new direction, and then move forward in the new direction; forward After a certain distance, stop moving, measure the forward distance, and perform the ranging process to the base station; finally, according to the measured information, calculate and determine the starting position of the UAV.

Description

technical field [0001] The invention relates to the field of unmanned aerial vehicles and positioning, in particular to a method and equipment for unmanned aerial vehicle positioning oriented to search and rescue scenarios. Background technique [0002] In disaster-stricken areas, such as disaster areas caused by various natural disasters or man-made wars, infrastructure is often damaged and public services are lacking. In this scenario, the rapid and accurate positioning of rescuers will help improve the number of trapped people. The probability of survival is of great significance. [0003] At present, the common positioning methods include the method based on the Global Navigation Satellite System (GNSS), the method of multi-anchor point positioning, and the method of single anchor point positioning. The GNSS-based method uses satellite systems such as Beidou Navigation Satellite System or Global Positioning System to receive satellite broadcast signals to achieve positi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W64/00H04W4/90H04W4/40G01S5/02
CPCH04W64/006H04W4/90H04W4/40G01S5/02585Y02D30/70
Inventor 童飞丁波文
Owner SOUTHEAST UNIV
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