Monitoring method and system

Patent metadata

Field	Value
Publication number	US-11610496-B2
Application number	US-202016894832-A
Country	US
Kind code	B2
Filing date	Jun 7, 2020
Priority date	Mar 21, 2017
Publication date	Mar 21, 2023
Grant date	Mar 21, 2023

Abstract

A method for monitoring an unmanned aerial vehicle (UAV) includes a processor generating a datagram based on monitoring data for a UAV-detector communication between the UAV and one or more detectors. The monitoring data indicates at least one of a location of the UAV or a location of a control station in communication with the UAV. The method further includes the processor encrypting working data for a UAV-control station communication between the UAV and the control station using an encryption key known to the control station but now known to the one or more detectors, and a transmitter transmitting the datagram along with encrypted working data. The datagram is to be received by the one or more detectors and the encrypted working data is to be received and deciphered by the control station using the encryption key.

First claim

What is claimed is:

1. A method for monitoring an unmanned aerial vehicle (UAV), comprising:
generating, by a processor, a datagram based on monitoring data for a UAV-detector communication between the UAV and one or more detectors, the monitoring data indicating at least one of a location of the UAV or a location of a control station in communication with the UAV, wherein the datagram comprises a plurality of sub-datagrams;
encrypting, by the processor, working data for a UAV-control station communication between the UAV and the control station using an encryption key known to the control station but not known to the one or more detectors; and
transmitting, by a transmitter, the datagram along with encrypted working data, wherein:
the datagram is to be received by the one or more detectors and the encrypted working data is to be received and deciphered by the control station using the encryption key,
each sub-datagram of the datagram is transmitted cyclically with at least one of fixed time intervals or variable time intervals,
at least a portion of the encrypted working data is transmitted in a neighboring subframe between two consecutive sub-datagrams of the datagram, and
a guard interval is provided between one of the two consecutive sub-datagrams and the neighboring subframe to avoid transmission interference between the UAV-detector communication and the UAV-control station communication.

2. The method of claim 1 , wherein each sub-datagram of the datagram comprises an index indicating a sequence or order of the plurality of sub-datagrams for the one or more detectors to reconstruct or decipher the datagram.

3. The method of claim 2 , wherein the encryption key is a first encryption key, the method further comprising:
encrypting, by the processor, the datagram using a second encryption key known to the one or more detectors, wherein encrypted datagram is to be received and deciphered by the one or more detectors using the second encryption key or the index.

4. The method of claim 1 , wherein the UAV-detector communication and the UAV-control station communication comprise at least one of a different working frequency band, modulation scheme, coding scheme, data format, or communication protocol.

5. The method of claim 1 , wherein the monitoring data comprises at least one of a UAV identifier, a user identifier, a type of the UAV, or an identifier of the control station.

6. The method of claim 5 , further comprising:
determining, by a monitoring server, a risk level by retrieving pre-stored risk information associated with the UAV based on the monitoring data.

7. The method of claim 1 , further comprising:
determining, by a monitoring server, a risk level associated with the UAV based on a distance between the UAV and the one or more detectors or a number of UAVs detected by the one or more detectors within a monitored area.

8. A system for monitoring an unmanned aerial vehicle (UAV), comprising:
a processor configured to:
generate a datagram based on monitoring data for a UAV-detector communication between the UAV and one or more detectors, the monitoring data indicating at least one of a location of the UAV or a location of a control station in communication with the UAV, wherein the datagram comprises a plurality of sub-datagrams; and
encrypt working data for a UAV-control station communication between the UAV and the control station using an encryption key known to the control station but not known to the one or more detectors; and

a transmitter configured to:
transmit the datagram along with encrypted working data, wherein:
the datagram is to be received by the one or more detectors and the encrypted working data is to be received and deciphered by the control station using the encryption key,
each sub-datagram of the datagram is transmitted cyclically with at least one of fixed time intervals or variable time intervals,
at least a portion of the encrypted working data is transmitted in a neighboring subframe between two consecutive sub-datagrams of the datagram, and
a guard interval is provided between one of the two consecutive sub-datagrams and the neighboring subframe to avoid transmission interference between the UAV-detector communication and the UAV-control station communication.

9. The system of claim 8 , wherein each sub-datagram of the datagram comprises an index indicating a sequence or order of the plurality of sub-datagrams for the one or more detectors to reconstruct or decipher the datagram.

10. The system of claim 9 , wherein the encryption key is a first encryption key, wherein the processor is further configured to:
encrypt the datagram using a second encryption key known to the one or more detectors, wherein encrypted datagram is to be received and deciphered by the one or more detectors using the second encryption key or the index.

11. The system of claim 8 , further comprising:
a monitoring server configured to:
determine a risk level by retrieving pre-stored risk information associated with the UAV based on the monitoring data, wherein the monitoring data comprises at least one of a UAV identifier, a user identifier, a type of the UAV, or an identifier of the control station;
determine the risk level associated with the UAV based on a distance between the UAV and the one or more detectors; or
determine the risk level based on a number of UAVs detected by the one or more detectors within the monitored area.

12. A non-transitory computer-readable storage device storing content that, when executed by one or more processors, causes the one or more processors to perform actions comprising:
generating a datagram based on monitoring data for a UAV-detector communication between an unmanned aerial vehicle (UAV) and one or more detectors, the monitoring data indicating at least one of a location of the UAV or a location of a control station in communication with the UAV, wherein the datagram comprises a plurality of sub-datagrams;
encrypting working data for a UAV-control station communication between the UAV and the control station using an encryption key known to the control station but not known to the one or more detectors; and
transmitting the datagram along with encrypted working data, wherein:
the datagram is to be received by the one or more detectors and the encrypted working data is to be received and deciphered by the control station using the encryption key,
each sub-datagram of the datagram is transmitted cyclically with at least one of fixed time intervals or variable time intervals,
at least a portion of the encrypted working data is transmitted in a neighboring subframe between two consecutive sub-datagrams of the datagram, and
a guard interval is provided between one of the two consecutive sub-datagrams and the neighboring subframe to avoid transmission interference between the UAV-detector communication and the UAV-control station communication.

13. A vehicle, comprising:
a processor that at least partially controls one or more motions of the vehicle, configured to:
generate a datagram based on monitoring data for a vehicle-detector communication between the vehicle and one or more detectors, the monitoring data indicating at least one of a location of the vehicle or a location of a control station in communication with the vehicle, wherein the datagram comprises a plurality of sub-datagrams; and
encrypt working data for a vehicle-control station communication between the vehicle and the control station using an encryption key known to the control station but not known to the one or more detectors; and

a transmitter configured to:
transmit the datagram along with enc

Assignees

• Sz Dji Technology Co Ltd

Inventors

• Gong Ming
• Yang Bingzhen
• You Zhongqian
• Zhan Guohao
• Xie Peng
• Zhong Xiaohang
• Wang Naibo
• Lin Xingsen
• Rao Xiongbin
• Deng Renqin
• Chen Wenyue
• Wang Mingyu

Classifications

• G08G5/53 Primary

  for cruising · CPC title

• G08G5/26 Primary

  Transmission of traffic-related information between aircraft and ground stations · CPC title

• G08G5/727

  from a ground station · CPC title

• G08G5/55

  for a single aircraft · CPC title

• G08G5/25 Primary

  Transmission of traffic-related information between aircraft · CPC title