Test Stand Data Management Using Geo-Coordinate Alignment
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Solution Overview
Problem
Existing methods for comparing and analyzing test run data from vehicles are hindered by the difficulty in synchronizing and managing one-dimensional path-time profiles, leading to temporal or spatial divergences and making it challenging to set up and compare comparable test runs.
Innovation Solution
Storing and retrieving measurement data in relation to geographic coordinates allows for a three-dimensional trajectory, enabling direct comparison and visualization of test runs using geo-coordinates, with the option to record and play back video and audio data synchronized with the test run.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If measurement data is managed synchronously in terms of time, distance or angles, then data can be organized systematically, but data from different test runs becomes difficult to compare due to temporal or spatial divergences
Solution Approach 1:
The patent transitions from one-dimensional time or distance synchronization to a two-dimensional approach by introducing geographic coordinates (latitude, longitude) as a spatial reference system. This allows measurement data from different test runs to be aligned and compared based on their geographic positions rather than temporal sequences, eliminating the problem of temporal or spatial divergences while maintaining systematic organization.
2Ease of operation
If a one-dimensional profile v=v(x) or v=v(t) is used to characterize the test track, then the route can be controlled on the test bench, but direct comparison of measurement data from different test runs is not possible
Solution Approach 1:
The patent merges the one-dimensional speed profile approach with two-dimensional geographic coordinate information. By combining the velocity data v=v(x) with precise latitude and longitude coordinates, the system maintains the simplicity of one-dimensional control while adding spatial context that enables direct comparison of measurement data from different test runs through geographic alignment.
3Adaptability or versatility
If test runs are conducted with different driver profiles, then various driving characteristics can be tested, but temporal or spatial divergence occurs making comparison difficult
Solution Approach 1:
The patent introduces geographic coordinates as an intermediary reference system that mediates between different driver profiles and test run data. Instead of trying to align data based on time or distance which varies with driving style, the geographic coordinate system serves as a common reference frame that allows direct comparison of measurement data regardless of how differently the routes were driven.
Data Source
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AI summary
The aim of the invention is to allow measurement results from test runs to be superimposed and compared in a substantially more effective, faster, and improved manner. This is achieved in that a virtual route (A*-B*) is read from a data storage unit (4), wherein the virtual route (A*-B*) is stored as a sequence of geo-coordinates (P) and corresponding data (D) on the vehicle (1*), a driver, and/or an area surrounding the vehicle (1*), said data relating to the geo-coordinates (P), and used to carry out the test run for the virtual vehicle (1*). Measured data (M) of the virtual vehicle (1*) is detected and stored in relation to the geo-coordinates (P) during the test run.