SURFACE VEHICLE TRANSPONDER

• US 20080186221A1
• Filed: 02/07/2007
• Published: 08/07/2008
• Est. Priority Date: 02/07/2007
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Poe, John J., Conner, Kevin J.
• Granted Patent: US 7,479,919 B2
• Time in Patent Office: Days
• US Class Current: 342/30
• CPC Class Codes: G08G 1/207 with respect to certain areas, e.g. forbidden or allowed areas with possible alerting when inside or outside boundaries
• CPC Class Codes: G08G 5/0082 for monitoring traffic from a ground station 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

Systems and methods for alerting surrounding aircraft if a ground-based unit is a threat. One example system is located on a ground-based unit. The system includes a position sensor that senses position of the ground-based unit, a memory that stores predefined threat zone information, a transmitter that transmits a predefined transponder signal, and a processor in data communication with the position sensor, the memory, and the transmitter. The processor instructs the transmitter to transmit the transponder signal based on the threat zone information and the sensed position of the ground-based unit.

Claims

1. A transponder system located on a ground-based unit for alerting surrounding aircraft if the ground-based unit is a threat, the system comprising:

a position sensor configured to sense position of the ground-based unit;

a memory configured to store predefined threat zone information;

a transmitter configured to transmit a predefined transponder signal; and

a processor in data communication with the position sensor, the memory, and the transmitter, the processor configured to instruct the transmitter to transmit the transponder signal based on the threat zone information and the sensed position of the ground-based unit.

2. The system of claim 1, further comprising at least one of a power source distinct from a power source of the ground-based unit or a power source that is the power source of the ground-based unit.

3. The system of claim 1, wherein the ground-based unit is a surface vehicle.

4. The system of claim 3, wherein the threat zone information includes at least one of a runway or a taxiway.

5. The system of claim 3, wherein the processor instructs the transmitter to transmit the transponder signal if the sensed position indicates that the surface vehicle is within a predefined threat zone based on the stored predefined threat zone information.

6. The system of claim 3, wherein the transponder signal includes at least one of surface vehicle location, surface vehicle speed, direction of travel of the surface vehicle, or a unique identifier of the surface vehicle.

7. The system of claim 6, wherein the transmitter is instructed to transmit a transponder signal if the processor determines that the vehicle speed and direction of travel indicate that the surface vehicle will enter a threat zone within a threshold period of time.

8. The system of claim 6, wherein the transmitter is instructed to discontinue transmission of a transponder signal if the processor determines that the vehicle speed and direction of travel indicate that the surface vehicle will exit a threat zone within a threshold period of time.

9. The system of claim 1, wherein the ground-based unit is not a vehicle.

10. A method for alerting surrounding aircraft if the ground-based unit is a threat, the system comprising:

sensing position of the ground-based unit; and

instructing a transmitter to transmit a predefined transponder signal based on previously stored threat zone information and the sensed position of the ground-based unit.

11. The system method of claim 10, further comprising at least one of a power source distinct from a power source of the ground-based unit or a power source that is the power source of the ground-based unit.

12. The method of claim 10, wherein the ground-based unit is a surface vehicle.

13. The method of claim 12, wherein the threat zone information includes at least one of a runway or a taxiway.

14. The method of claim 12, wherein instructing comprises instructing the transmitter to transmit the transponder signal if the sensed position indicates that the surface vehicle is within a predefined threat zone based on the stored predefined threat zone information.

15. The method of claim 12, wherein the transponder signal includes at least one of surface vehicle location, surface vehicle speed, direction of travel of the surface vehicle, or a unique identifier of the surface vehicle.

16. The method of claim 15, wherein instructing comprises instructing the transmitter to transmit a transponder signal if the processor determines that the vehicle speed and direction of travel indicate that the surface vehicle will enter a threat zone within a threshold period of time.

17. The method of claim 15, wherein instructing comprises instructing the transmitter to discontinue transmission of a transponder signal if the processor determines that the vehicle speed and direction of travel indicate that the surface vehicle will exit a threat zone within a threshold period of time.

18. The method of claim 10, wherein the ground-based unit is not a vehicle.