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This system uses a special transducer to pick up vibrations as you drive along a road. Potholes, speedbumps and different road textures will have varying effects on the suspension system, all of which is recorded into a continuous sound file.
The audio is time-stretched to compensate for measured
road speed, then fed into a modified 'Shazam'-like service to identify the melody of the pothole fingerprint.
Some roads may take many minutes, others only a few seconds. Feeding in other basic data (compass, inclination) may improve the results.
That may be an upgrade for the latest release of ...
Radar_20Controlled_...20Response_20System
[normzone, Jan 06 2017]
High-Precision Localization Using Ground Texture
https://microgps.cs.princeton.edu/
This paper was first published nine months after Pothole Fingerpints. Coincidence? I think not. [mitxela, Sep 07 2021]
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How wide is the transducer ? |
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The width of a tire, two tires, the car, the lane , or several lanes ? |
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Does optical, sound, tire movement power the transducer ? |
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Could someone in New York simulate driving in Paris ? |
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The pothole incrementally changes shape with each tyre that passes through it |
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I was actually envisioning a piezo pickup attached to one of the wheel bearings, or maybe a linear position sensor on a shock absorber. But a dedicated scanner would make setup and calibration easier. |
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// simulate driving in Paris // |
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That is an interesting one. Indeed the collected database of road surface bumps could be played back for casual listening, to provide comfort for travellers who miss their home potholes. |
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// The pothole incrementally changes shape // |
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That shouldn't matter too much, it's more the spacing/rhythm that's important. |
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I think temperature would affect road tones. |
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"I love Paris potholes in the springtime..." |
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The problem with this idea is that a single cyclist could completely throw the system. |
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// The pothole incrementally changes shape with each tyre
that passes through it // |
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The system adjusts its fingerprint slightly with every
recording received (after matching). |
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