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Rescue method and control method after GPS signal loss of flight device

A GPS signal and flight device technology, applied in three-dimensional position/course control, vehicle position/route/altitude control, measurement devices, etc., can solve problems such as poor communication quality, lost navigation, and lack of emergency handling

Active Publication Date: 2020-02-11
一飞智控(天津)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method lacks the handling of emergencies, and does not take into account the occurrence of poor communication quality, etc. In places where GPS signals are poor or missing, the phenomenon of getting lost may even occur

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A rescue method after the GPS signal loss of the flying device, comprising the following steps,

[0035] 1) The rescue flight device receives a rescue signal, and the rescue signal includes target GPS information,

[0036] 2) The rescue aircraft actively searches for the faulty flight device before or after arriving at the target GPS information,

[0037] 3) After the faulty flying device is found, the estimated GPS information of the faulty flying device is generated and sent out through the fusion of its own GPS information and the spatial distance of the two,

[0038] 4) The rescue flight device executes the flight, generates and transmits deduced GPS information in real time.

[0039] Wherein, after the step 3), the step of receiving and executing the flight route is also included. That is, after the preliminary search is completed and the basic judgment is established, the flight mission can be regenerated from the background according to the actual situation, su...

Embodiment 2

[0043] A method for controlling a flight device after a GPS signal is lost, comprising the following steps,

[0044] 1) When the controller of the operational flight device receives a GPS module failure or no GPS signal, it immediately controls the operational flight device to hover, for example, it can maintain the hovering state according to the combination of barometer and inertial navigation;

[0045] 2) The controller sends out the fault signal and the target GPS information before interference through the wireless link,

[0046] 3) The controller receives the presumed GPS information transmitted through the wireless data communication link in real time and executes the flight mission as the GPS information application. Wherein, the flight mission is to continue to execute the previous flight mission or to receive a new flight mission after GPS failure or no GPS signal.

[0047] Through the mode of the master aircraft, the operational flight device is the slave aircraft,...

Embodiment 3

[0050] A method for controlling a flight device after a GPS signal is lost, comprising the following steps,

[0051] 1) Immediately after the GPS signal loss of the operational flight device, the hovering state will be maintained, and at the same time, an alarm message will be sent to the rescue flight device directly or through the background, and the target GPS information before being interfered will be sent.

[0052] 2) The rescue flight device receives the alarm information and the flight device immediately responds to the alarm and searches according to the target GPS information,

[0053] 3) After the operational flying device is found, the rescue flying device hovers,

[0054] 4) After fusing its own GPS information with the space distance, it generates estimated GPS information and transmits it to the operational flight device through a wireless data communication link,

[0055] 5) The operational flight device uses the deduced GPS information as GPS information and ...

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PUM

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Abstract

The invention discloses a rescue method and a control method after GPS signal loss of a flight device. The rescue method after GPS signal loss of the flight device comprises the following steps: 1) arescue flight device receives a rescue signal, wherein the rescue signal comprises target GPS information; 2) a rescue aircraft actively searches a faulty flight device before or after arriving at thetarget GPS information; 3) after searching the faulty flight device, the GPS information of the faulty flight device and the spatial distance between the faulty flight device and the rescue aircraftare fused to generate and send estimated GPS information of the faulty flight device; and 4) the rescue flight device performs flight, and generates and sends the estimated GPS information in real time. According to the rescue method disclosed by the invention, when the operation flight device cannot continue to operate due to a GPS fault, the coverage of a visual system or a radar is fully utilized, the rescue operation flight device is used to generate the estimated GPS information according to the spatial distance, and the estimated GPS information is used as a flight reference in sequence,so that the rescue method is especially suitable for a specific area.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicle control, and in particular relates to a rescue method and a control method after the GPS signal of a flying device is lost. Background technique [0002] Small civilian drones have shown explosive growth. The small civilian drone industry has the characteristics of rapid development, good market prospects, and wide application fields. At present, the communication methods of small UAVs mainly use WIFI or radio frequency. According to the increase of communication distance, the power of control information transmission will become larger, and the bandwidth of communication link will also be limited. Therefore, in the case of unstable network transmission, ensuring the reliability of UAV communication, and even in the more extreme scenario of UAV communication interruption, how to restore communication with the remote end has always been the focus of research in the UAV field. and d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/17G05D1/10
CPCG01S19/17G05D1/101
Inventor 吴冲杨广龙胡庆杨继成申小明
Owner 一飞智控(天津)科技有限公司