Inertial navigation unit protocol converter

a protocol converter and navigation unit technology, applied in the direction of navigation instruments, instruments, process and machine control, etc., can solve the problems of not being able to provide the nmea-0183 sentence provided by the protocol converter, and not being specifically designed

Inactive Publication Date: 2009-02-26
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of these converters are specifically designed to utilize the wide variety of parameters available from the Litton LTN-92 Inertial Navigation System (INS), used on the P-3 aircraft, which is manufactured by Litton Industries, Incorporated.
None of the NMEA-0183 sentences provided by these protocol converters are capable of providing pointing information that is used to indicate the location of an object relative to the P-3 aircraft.

Method used

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  • Inertial navigation unit protocol converter
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  • Inertial navigation unit protocol converter

Examples

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Embodiment Construction

[0022]Referring to FIG. 1, the INU_Convert program is a protocol conversion program that translates the ARINC-429 avionics protocol to the National Marine Electronics Association 0183 (NMEA-0183) protocol. This program was developed to run on computers utilizing the Windows 2000 and Windows XP operating systems. This program is comprised of two files, the program executable file, “INU_Convert.exe”, and the program initialization file, “INU_Convert.ini”. The initialization file is a text file that contains data used to establish the initial communications ports and parameters used in the protocol conversion.

[0023]The INU_Convert program was developed for the CEI-520A-44 interface board manufactured by Condor Engineering. This interface board interfaces to the PCI bus of computer 20 (FIG. 1) and supports up to four input and four output ARINC-429 channels.

[0024]The board installation is accomplished utilizing software and following the instructions provided by the manufacturer, Condor...

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Abstract

A protocol converter that translates the ARINC-429 protocol output of an Inertial Navigation System to the National Marine Electronics Association 0183 protocol. The protocol converter includes an ARINC-429 interface board with cable and software operating in a computer with at least one serial communications port. The software includes a protocol conversion program which is capable of outputting the NMEA-0183 protocol to as many as four serial communications ports simultaneously.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates generally to the field of protocol converters. More specifically, the present invention relates to a protocol converter for use with an inertial navigation unit on the P-3 aircraft.[0003]2. Description of the Prior Art[0004]The Department of Homeland Security utilizes airborne surveillance operations to monitor illegal activities which have an impact on national security. These activities include drug trafficking, illegal immigration, and terrorist activities.[0005]Many ride-along sensor units often deployed with a surveillance P-3 aircraft require the implementation the National Marine Electronics Association 0183 (NMEA-0183) serial navigation data format. Future proposed components for geospatial video recording and reproduction also require the ability to utilize this format. There is currently an immediate need to provide aircraft navigation data in real time to produce a coherent video...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G01C23/00
CPCG01C21/16H04L69/08H04L63/30G01C21/166
Inventor HOULBERG, CHRISTIAN LAURITZ
Owner THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
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