DYNAMICALLY INTEGRATED NAVIGATION TESTER

• US 20170328715A1
• Filed: 05/12/2016
• Published: 11/16/2017
• Est. Priority Date: 05/12/2016
• Status: Active Grant

• Current Assignee: Honeywell International Inc.
• Original Assignee: Honeywell International Inc.
• Inventors: Oven, James B., Merritt, Ross, Matthews, Christopher Jay, Snyder, Scott
• Granted Patent: US 9,989,365 B2
• Time in Patent Office: Days
• CPC Class Codes: G01C 21/188 for accumulated errors, e.g. by coupling inertial systems with absolute positioning systems
• CPC Class Codes: G01C 25/005 initial alignment, calibration or starting-up of inertial devices
• CPC Class Codes: G01S 19/13 Receivers
• CPC Class Codes: G09B 9/006 for locating or ranging of objects

Abstract

An Inertial Navigation System (INS) testing system includes a Unit Under Test (UUT) with an INS module, a DAT tool configured to provide command and control functions to a user, and a Dynamically Integrated Navigation Tester (DINT) in communication with the UUT and the DAT tool. The DINT includes a truth data conversion module configured to receive truth data and convert it to navigation data suitable for transmission to the UUT. The INS testing system advantageously allow a user to interface with a UUT while providing user-specified dynamic inputs from the DINT with the truth data selected by the user.

Claims

1. An Inertial Navigation System (INS) testing system comprising:

a Unit Under Test (UUT) comprising an INS module;

a DAT tool configured to provide command and control functions to a user; and

a Dynamically Integrated Navigation Tester (DINT) in communication with the UUT and the DAT tool, the DINT comprising a truth data conversion module and a synchronization module,

wherein the truth data conversion module is configured to receive truth data and convert it to navigation data suitable for transmission to the UUT.

2. The INS testing system of claim 1, further comprising a satellite simulator in communication with the UUT and the DINT.

3. The INS testing system of claim 1, further comprising a real-time GPS data source in communication with the UUT and the DINT.

4. The INS testing system of claim 3, wherein the real-time GPS data source comprises an Embedded GPS/IMU (EGI) or an Attitude Heading Reference System (AHRS).

5. The INS testing system of claim 1, wherein the UUT further comprises a GPS.

6. The INS testing system of claim 1, wherein the DINT further comprises an interface for receiving truth data from an external memory device.

7. The INS testing system of claim 1, wherein the DINT comprises a modified version of the UUT.

8. The INS testing system of claim 1, wherein inertial data is provided by the UUT.

9. A Dynamically Integrated Navigation Tester (DINT) comprising:

a synchronization module; and

a truth data conversion module in communication with the synchronization module,

wherein the truth data conversion module is configured to receive truth reference data and convert it to navigation data suitable for transmission to a Unit Under Test (UUT) comprising an Inertial Navigation System (INS) module,

wherein the truth data conversion module is configured to receive command and control signals from a DAT tool and transmit corresponding command and control signals to the UUT.

10. The DINT of claim 9, wherein the DINT is in communication with a satellite simulator.

11. The DINT of claim 9, wherein the DINT is configured to receive truth reference data from an external memory device.

12. The DINT of claim 11, wherein the external memory device comprises a flash drive.

13. The DINT of claim 9, wherein the DINT is configured to receive truth reference data from a real-time GPS data source.

14. The DINT of claim 13, wherein the real-time GPS data source comprises an Embedded GPS/IMU (EGI) or an Attitude Heading Reference System (AHRS).

15. The DINT of claim 9, wherein the UUT further comprises a GPS.

16. The DINT of claim 9, wherein the DINT comprises a modified version of the UUT.

17. A method of performing an Inertial Navigation System (INS) test, comprising:

receiving command and control signals from a user at a Dynamically Integrated Navigation Tester (DINT);

receiving truth data at the DINT;

converting the truth data to navigation data suitable for transmission to a Unit Under Test (UUT) comprising an INS module; and

transmitting the navigation data to the UUT.

18. The method of claim 17, further comprising synchronizing one or more timing signals with a satellite simulator.

19. The method of claim 17, wherein the truth data is received from an external memory device.

20. The method of claim 17, wherein the truth data is received from a real-time GPS data source.