Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DATA TRANSMISSION METHOD, DEVICE AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/153786
Kind Code:
A1
Abstract:
The present invention provides a data transmission method, device and system. Said method comprises: within a detection period, receiving a first pilot signal sent by an unmanned aerial vehicle, the first pilot signal being a downlink signal that modulates a useful signal on preset candidate frequency points, and the preset candidate frequency points comprising: frequency points located within the same frequency band and/or within different frequency bands; determining, according to the first pilot signal, a downlink operating frequency point from the preset candidate frequency points; sending a first feedback signal to the unmanned aerial vehicle, the first feedback signal comprising information about the downlink operating frequency point; and receiving downlink data which is sent by the unmanned aerial vehicle and modulated on the downlink operating frequency point. Therefore, frequency point detection in the same frequency band and/or across frequency bands is implemented, so as to select an optimal preset candidate frequency point as an operating frequency point, enabling the transmission between the unmanned aerial vehicle and the remote controller to be more stable, reducing interference of external signals, improving the quality of data transmission between the unmanned aerial vehicle and the ground.

Inventors:
HU, Xiaojun (9th Floor, Building B1 Zhiyuan, No.1001, Xueyuan Road, Xili Street, Nansha, Shenzhen Guangdong 5, 518055, CN)
LIU, Hong (9th Floor, Building B1 Zhiyuan, No.1001, Xueyuan Road, Xili Street, Nansha, Shenzhen Guangdong 5, 518055, CN)
Application Number:
CN2018/110616
Publication Date:
August 15, 2019
Filing Date:
October 17, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
AUTEL ROBOTICS CO., LTD. (9th Floor, Building B1 Zhiyuan, No.1001, Xueyuan Road, Xili Street, Nansha, Shenzhen Guangdong 5, 518055, CN)
International Classes:
H04L5/00; H04W72/04
Foreign References:
CN107634816A2018-01-26
CN108390748A2018-08-10
CN103178927A2013-06-26
CN102740409A2012-10-17
CN103167585A2013-06-19
Attorney, Agent or Firm:
AFD CHINA INTELLECTUAL PROPERTY LAW OFFICE (Suite B 1601A, 8 Xue Qing Rd. Haidian, Beijing 2, 100192, CN)
Download PDF: