The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 2023
Filed:
Aug. 07, 2020
Autel Robotics Co., Ltd., Guangdong, CN;
Xiaojun Hu, Guangdong, CN;
Hong Liu, Guangdong, CN;
AUTEL ROBOTICS CO., LTD., Guangdong, CN;
Abstract
The present invention provides a data transmission method, apparatus and system. The method includes: in a detection period, receiving a first pilot signal sent by an unmanned aerial vehicle (UAV), the first pilot signal being a downlink signal obtained by modulating a useful signal at a preset candidate frequency, and the preset candidate frequency including a frequency in a same frequency band and/or different frequency bands; determining a downlink operating frequency from the preset candidate frequency according to the first pilot signal; sending a first feedback signal to the UAV, the first feedback signal including information about the downlink operating frequency; and receiving downlink data sent by the UAV and modulated at the downlink operating frequency. In this way, frequency detection in a same frequency band and/or across frequency bands is implemented to select an optimal preset candidate frequency as an operating frequency, so that data transmission between a UAV and a remote control is more stable, interference from an external signal is reduced, and quality of data transmission between the UAV and a ground end is improved.