DINT for INS Testing via Truth Data Conversion
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Solution Overview
Problem
Existing Inertial Navigation System (INS) testing systems are time-consuming and expensive, requiring costly large-scale flight test environments to simulate and test dynamic conditions, lacking the ability to quickly and easily analyze devices under multiple input conditions.
Innovation Solution
The implementation of a Dynamically Integrated Navigation Tester (DINT) that includes a truth data conversion module and synchronization module, allowing for real-time conversion and transmission of user-defined navigation data to an INS module, and optionally interfacing with a satellite simulator or real-time GPS data source, enabling dynamic testing without specialized equipment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional INS testing systems are used with satellite simulators and large-scale flight test environments, then testing capability is provided, but the system becomes time-consuming and expensive
Solution Approach 1:
The patent creates a virtual copy of the INS system (the DINT) that replicates the same navigation processing functions. This virtual instance can be tested under multiple dynamic conditions simultaneously without requiring physical flight test environments, thereby reducing testing time while maintaining reliability
Solution Approach 2:
The system enables dynamic testing by allowing the DINT to receive real-time truth data from GPS sources and convert it to navigation data streams that can be dynamically adjusted. This dynamic data conversion capability allows testing under varying conditions without requiring physical reconfiguration of flight test environments
2Reliability
If conventional INS testing systems are used with satellite simulators and large-scale flight test environments, then testing capability is provided, but the cost increases significantly
Solution Approach 1:
By creating a virtual copy (DINT) of the INS system that runs on standard computing platforms, the patent eliminates the need for expensive physical flight test equipment and large-scale test facilities, significantly reducing testing costs while maintaining full testing capability
Solution Approach 2:
The patent replaces mechanical flight test platforms and physical satellite simulators with a software-based virtual system. The DINT uses computational algorithms to simulate navigation processing, substituting expensive mechanical test equipment with affordable software running on standard hardware
3Reliability
If conventional INS testing systems are used, then testing is possible, but the system lacks ability to quickly analyze devices under multiple input conditions
Solution Approach 1:
The DINT is designed as a universal testing platform that can accept multiple types of input data (GPS truth data, simulated navigation data, various sensor inputs) and convert them to appropriate navigation data streams. This multi-functional capability allows a single system to test under diverse conditions without requiring specialized equipment for each test scenario
Solution Approach 2:
The system dynamically adapts to different test conditions by receiving real-time truth data from various sources (GPS, external memory devices) and converting it to appropriate navigation data streams. This dynamic data conversion enables quick analysis under multiple input conditions by simply changing the input data source rather than reconfiguring the test system
Data Source
AI summary
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.