Unmanned air vehicle with autonomous air traffic control communications capability

Patent metadata

Field	Value
Publication number	US-9401758-B2
Application number	US-201414306344-A
Country	US
Kind code	B2
Filing date	Jun 17, 2014
Priority date	Jun 17, 2014
Publication date	Jul 26, 2016
Grant date	Jul 26, 2016

Abstract

An exemplary method is implemented by an unmanned air vehicle (UAV) for providing voice communications to an air traffic control (ATC) station. Two-way first voice communications are supported with a human operator at a control station that is in control of the UAV over a digital radio frequency (RF) link. Two-way second voice communications are supported with a controller at the ATC station over an analog RF link. The first and second voice communications are coupled to each other so that two-way voice communications are provided between the human operator and the controller. A determination is made that the first communications with the human operator is not operative. Based on this determination, autonomous voice announcements of flight parameters of the UAV are generated, and transmitted via the analog radio frequency link to the ATC station.

First claim

I claim:

1. A method implemented by an unmanned air vehicle (UAV) for providing voice communications to an air traffic control (ATC) station comprising the steps of:
supporting two-way first voice communications with a human operator at a control station that is in control of the UAV over a digital radio frequency (RF) link and two-way second voice communications with a controller at the ATC station over an analog RF link;
coupling the first and second voice communications to each other so that two-way voice communications are provided between the human operator and the controller; determining that the first communications with the human operator is not operative;
based on said determination, generating autonomous voice announcements of flight parameters of the UAV, and transmitting the autonomous voice announcements via the analog radio frequency link to the ATC station;
determining that the first communications with the human operator, which was not operative, has now become operative; and
ceasing the generation of autonomous voice announcements of flight parameters of the UAV based on the first communications with the human operator now being operative.

2. The method of claim 1 wherein the step of determining comprises sensing that the digital RF link is not operative.

3. The method of claim 2 wherein the autonomous voice announcements generated by the UAV are based on current flight parameters autonomously determined by the UAV in combination with information about a predetermined flight plan stored in memory of the UAV which controls the flight of the UAV upon the digital RF link becoming inoperative.

4. The method of claim 1 further comprising the steps of:
determining a sequence of words to be used for one autonomous voice announcement where the words are stored in memory of the UAV in character format; and
converting the words in the sequence of words from character format to a waveform format suitable for transmission over the analog RF link.

5. The method of claim 1 wherein the two-way first voice communications is with the human operator at an earth-based control center station that is not at the same location as the ATC.

6. A method implemented by an unmanned air vehicle (UAV) for providing voice communications to an air traffic control (ATC) station comprising the steps of:
supporting two-way first voice communications with a human operator at a control station that is in control of the UAV over a digital radio frequency (RF) link and two-way second voice communications with a controller at the ATC station over an analog RF link;
coupling the first and second voice communications to each other so that two-way voice communications are provided between the human operator and the controller;
determining that the first communications with the human operator is not operative by sensing that the first voice communications received from the human operator are not being coupled to the second voice communications to be transmitted to the ATC station; and
based on said determination, generating autonomous voice announcements of flight parameters of the UAV, and transmitting the autonomous voice announcements via the analog radio frequency link to the ATC station.

7. A computer program product, comprising a tangible non-transitory medium having a computer readable program code embodied therein, said computer readable program code adapted to be executed by a computer in an unmanned air vehicle (UAV) to implement a method for providing voice communications to an air traffic control (ATC) station, said method comprising;
supporting two-way first voice communications with a human operator at a control station that is in control of the UAV over a digital radio frequency (RF) link and two-way second voice communications with a controller at the ATC station over an analog RF link;
coupling the first and second voice communications to each other so that two-way voice communications are provided between the human operator and the controller;
determining that the first communications with the human operator is not operative;
based on said determination, generating autonomous voice announcements of flight parameters of the UAV, and transmitting the autonomous voice announcements via the analog radio frequency link to the ATC station;
determining that the first communications with the human operator, which was not operative, has now become operative; and
ceasing the generation of autonomous voice announcements of flight parameters of the UAV based on the first communications with the human operator now being operative.

8. The computer program product of claim 7 wherein the step of determining comprises sensing that the digital RF link is not operative.

9. The computer program product of claim 8 wherein the autonomous voice announcements generated by the UAV are based on current flight parameters autonomously determined by the UAV in combination with information about a predetermined flight plan stored in memory of the UAV which controls the flight of the UAV upon the digital RF link becoming inoperative.

10. The computer program product of claim 7 wherein the method further comprises the steps of:
determining a sequence of words to be used for one autonomous voice announcement where the words are stored in memory of the UAV in character format; and
converting the words in the sequence of words from character format to a waveform format suitable for transmission over the analog RF link.

11. A computer program product, comprising a tangible non-transitory medium having a computer readable program code embodied therein, said computer readable program code adapted to be executed by a computer in an unmanned air vehicle (UAV) to implement a method for providing voice communications to an air traffic control (ATC) station, said method comprising:
supporting two-way first voice communications with a human operator at a control station that is in control of the UAV over a digital radio frequency (RF) link and two-way second voice communications with a controller at the ATC station over an analog RF link;
coupling the first and second voice communications to each other so that two-way voice communications are provided between the human operator and the controller;
determining that the first communications with the human operator is not operative by sensing that the first voice communications received from the human operator are not being coupled to the second voice communications to be transmitted to the ATC station; and
based on said determination, generating autonomous voice announcements of flight parameters of the UAV, and transmitting the autonomous voice announcements via the analog radio frequency link to the ATC station.

12. An unmanned air vehicle (UAV) that provides voice communications to an air traffic control (ATC) station comprising:
a digital radio frequency (RF) transceiver that supports two-way first voice communications with a human operator at a control station that is in control of the UAV over a digital radio frequency (RF) link;
an analog voice transceiver that supports two-way second voice communications with a controller at the ATC station over an analog RF link;
a voice pass through transmission gate couples the first and second voice communications to each other so that two-way voice communications are provided between the human operator and the controller;
a computer controlled system manager that controls the operation of the UAV;
a sensor mechanism provides an input to the computer controlled system manager that determines, based on the input, that the first communications with the human operator is not operative;
based on said deter

Assignees

• Northrop Grumman Systems Corp

Inventors

• Bosworth Craig S

Classifications

• G08G5/58

  for emergency situations, e.g. hijacking or bird strikes · CPC title

• G08G5/57

  for unmanned aircraft · CPC title

• G08G5/55

  for a single aircraft · CPC title

• G08G5/26

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

• H04B7/18502

  Airborne stations · CPC title