SYSTEM, APPARATUS, AND METHOD USING ADS-B AND TCAS DATA FOR DETERMINING NAVIGATION SOLUTIONS FOR A VEHICLE

• US 20180061252A1
• Filed: 08/24/2016
• Published: 03/01/2018
• Est. Priority Date: 08/24/2016
• Status: Active Grant

• Current Assignee: The Boeing Co.
• Original Assignee: The Boeing Co.
• Inventors: Feng, Gang, Kim, Geun I.
• Granted Patent: US 10,134,294 B2
• Time in Patent Office: Days
• CPC Class Codes: G01S 13/878 Combination of several spaced transmitters or receivers of known location for determining the position of a transponder or a reflector G01S13/874 takes precedence
• CPC Class Codes: G01S 13/933 of aircraft or spacecraft
• CPC Class Codes: G01S 19/48 by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
• CPC Class Codes: G01S 5/0072 Transmission between mobile stations, e.g. anti-collision systems
• CPC Class Codes: G08G 5/0008 with other aircraft
• CPC Class Codes: G08G 5/0078 for monitoring traffic from the aircraft radar or analogous systems specially adapted for traffic control G01S13/91
• CPC Class Codes: G08G 5/045 Navigation or guidance aids, e.g. determination of anti-collision manoeuvers radar or analogous systems specially adapted for anti-collision between aircraft G01S13/933

Abstract

A system using automatic dependent surveillance-broadcast (ADS-B) data and traffic alert and collision avoidance system (TCAS) data for determining navigation solutions for a vehicle is provided. The system has a communal position system (CPS) with a CPS sensor located in the vehicle. The CPS sensor receives ADS-B data and TCAS data from each of one or more proximate vehicles. The system further has a computer system coupled to the CPS. The computer system is configured to perform the steps of: checking the ADS-B data and the TCAS data for data reasonableness; performing data synchronization of the ADS-B data and the TCAS data; and computing a CPS position and a position accuracy based on the ADS-B data and the TCAS data. The navigation solutions include an alternate navigation solution, an independent navigation solution, and a complementary navigation solution.

Claims

1. A system using automatic dependent surveillance-broadcast (ADS-B) data and traffic alert and collision avoidance system (TCAS) data for determining one or more navigation solutions for a vehicle, the system comprising:

a communal position system (CPS) comprising;

a communal position system (CPS) sensor located in the vehicle, the CPS sensor configured to receive automatic dependent surveillance-broadcast (ADS-B) data and traffic alert and collision avoidance system (TCAS) data from each of one or more proximate vehicles;

a computer system coupled to the CPS, the computer system configured to perform the steps of;

checking the ADS-B data and the TCAS data for data reasonableness;

performing data synchronization of the ADS-B data and the TCAS data; and

computing a communal position system (CPS) position and a position accuracy based on the ADS-B data and the TCAS data,

wherein the CPS is used in determining one or more navigation solutions for the vehicle, the one or more navigation solutions comprising one or more of, an alternate navigation solution, an independent navigation solution, and a complementary navigation solution.

2. The system of claim 1 wherein the CPS is integrated in one of, a flight management computer (FMC) in the vehicle, a global positioning system (GPS) in the vehicle, and a traffic alert and collision avoidance system (TCAS) in the vehicle.

3. The system of claim 1 wherein the automatic dependent surveillance-broadcast (ADS-B) data for each of the one or more proximate vehicles comprises one or more of, identification information for each proximate vehicle, a latitude for each proximate vehicle, a longitude for each proximate vehicle, a position navigation integrity category (NIC) for each proximate vehicle, a barometric altitude for each proximate vehicle, a global navigation satellite system (GNSS) height for each proximate vehicle, a plurality of velocities for each proximate vehicle, and a navigation accuracy category for velocity (NACv) for each proximate vehicle.

4. The system of claim 1 wherein the traffic alert and collision avoidance system (TCAS) data for each of the one or more proximate vehicles comprises one or more of, identification information for each proximate vehicle, a slant range for each proximate vehicle, a bearing for each proximate vehicle, and a relative altitude for each proximate vehicle.

5. The system of claim 4 wherein the data reasonableness for the slant range and the bearing is checked using a last known position of each of the one or more proximate vehicles propagated to real-time and the ADS-B data.

6. The system of claim 1 wherein the data synchronization takes into account a data latency due to a transmission and a computation of the ADS-B data and the TCAS data.

7. The system of claim 1 wherein the alternate navigation solution is used when one or more position sensors on the vehicle experiences one of, being non-operational, signal jamming, and interference.

8. The system of claim 1 wherein the independent navigation solution is used for cross-checking and integrity monitoring of one or more position sensors on the vehicle.

9. The system of claim 1 wherein the complementary navigation solution is used when the ADS-B data and the TCAS data from the one or more proximate vehicles is integrated into a global positioning system (GPS), and the one or more proximate vehicles function as additional satellites providing additional range measurements, to improve a satellite-receiver geometry.

10. The system of claim 1 wherein the vehicle is a host vehicle comprising an air vehicle, including one of, an aircraft, an unmanned air vehicle, a satellite, a glider, a rotorcraft, and a missile.

11. An apparatus for using automatic dependent surveillance-broadcast (ADS-B) data and traffic alert and collision avoidance system (TCAS) data for determining one or more navigation solutions for a vehicle, the apparatus comprising:

a communal position system (CPS) sensor located in the vehicle, the CPS sensor configured to receive automatic dependent surveillance-broadcast (ADS-B) data and traffic alert and collision avoidance system (TCAS) data from each of one or more proximate vehicles, the CPS sensor used to determine one or more navigation solutions for the vehicle, the one or more navigation solutions comprising one or more of, an alternate navigation solution, an independent navigation solution, and a complementary navigation solution,

wherein the CPS sensor is coupled to a computer system configured to perform the steps of;

checking the ADS-B data and the TCAS data for data reasonableness;

performing data synchronization of the ADS-B data and the TCAS data; and

computing a communal position system (CPS) position and a position accuracy based on the ADS-B data and the TCAS data.

12. The apparatus of claim 11 wherein the CPS sensor is integrated in one of, a flight management computer (FMC) in the vehicle, a global positioning system (GPS) in the vehicle, and a traffic alert and collision avoidance system (TCAS) in the vehicle.

13. The apparatus of claim 11 wherein the CPS sensor receives ADS-B data comprising one or more of, identification information for each proximate vehicle, a latitude for each proximate vehicle, a longitude for each proximate vehicle, a position navigation integrity category (NIC) for each proximate vehicle, a barometric altitude for each proximate vehicle, a global navigation satellite system (GNSS) height for each proximate vehicle, a plurality of velocities for each proximate vehicle, and a navigation accuracy category for velocity (NACv) for each proximate vehicle, and wherein the CPS sensor receives TCAS data comprising one or more of, identification information for each proximate vehicle, a slant range for each proximate vehicle, a bearing for each proximate vehicle, and a relative altitude for each proximate vehicle.

14. A computer implemented method for using automatic dependent surveillance-broadcast (ADS-B) data and traffic alert and collision avoidance system (TCAS) data for determining one or more navigation solutions for a vehicle, the method comprising the steps of:

receiving, by a communal position system (CPS) in the vehicle, automatic dependent surveillance-broadcast (ADS-B) data and traffic alert and collision avoidance system (TCAS) data, from each of one or more proximate vehicles;

conducting a data reasonableness check of the ADS-B data and the TCAS data using a computer system coupled to the CPS;

rejecting the ADS-B data and the TCAS data, if the data reasonableness check does not pass;

performing, with the computer system, a data synchronization of the ADS-B data and the TCAS data, if the data reasonableness check passes, the data synchronization taking into account a data latency due to a transmission and a computation of the ADS-B data and the TCAS data; and

computing, with the computer system, a communal position system (CPS) position and a position accuracy based on the ADS-B data and the TCAS data, and determining one or more navigation solutions for the vehicle, the one or more navigation solutions comprising one or more of, an alternate navigation solution, an independent navigation solution, and a complementary navigation solution.

15. The method of claim 14 further comprising integrating the CPS in one of, a flight management computer (FMC) in the vehicle, a global positioning system (GPS) in the vehicle, and a traffic alert and collision avoidance system (TCAS) in the vehicle.

16. The method of claim 14 wherein the receiving the ADS-B data from each of the one or more proximate vehicles comprises receiving the ADS-B data comprising one or more of, identification information for each proximate vehicle, a latitude for each proximate vehicle, a longitude for each proximate vehicle, a position navigation integrity category (NIC) for each proximate vehicle, a barometric altitude for each proximate vehicle, a global navigation satellite system (GNSS) height for each proximate vehicle, a plurality of velocities for each proximate vehicle, and a navigation accuracy category for velocity (NACv) for each proximate vehicle.

17. The method of claim 14 wherein the receiving the TCAS data from each of the one or more proximate vehicles comprises receiving the TCAS data comprising one or more of, identification information for each proximate vehicle, a slant range for each proximate vehicle, a bearing for each proximate vehicle, and a relative altitude for each proximate vehicle.

18. The method of claim 17 wherein conducting the data reasonableness check of the ADS-B data and the TCAS data comprises checking the data reasonableness for the slant range and the bearing using a last known position of each of the one or more proximate vehicles propagated to real-time and the ADS-B data.

19. The method of claim 14 wherein the receiving by the vehicle, of the ADS-B data and the TCAS data, comprises receiving the ADS-B data and the TCAS data from one proximate vehicle having TCAS data comprising a slant range, a bearing, and a relative altitude, and having ADS-B data comprising a latitude, a longitude, and a barometric altitude.

20. The method of claim 14 wherein the receiving by the vehicle, of the ADS-B data and the TCAS data, comprises receiving the ADS-B data and the TCAS data from three proximate vehicles each proximate vehicle having TCAS data comprising a slant range, and having ADS-B data comprising a latitude, a longitude, and a barometric altitude.

21. The method of claim 14 wherein the method is performed in one of, an air-based location, and a ground-based location.