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The example they gave about inside building navigation does kinda make sense. Imagine firefighters with this device in their boots. They all get to the fire and
by SpikeDad 9y ago
The example they gave about inside building navigation does kinda make sense. Imagine firefighters with this device in their boots. They all get to the fire and press a snyc button (or click their heels three times) and their device gets the current position from the GPS in their fire truck.
Now they can be accurately (well sort of) tracked inside the building without requiring sky access for GPS.
- mhb 9y agoThey don't necessarily need GPS at all if they just want to be able to get back to a starting point.
- jtuente 9y agoThere will need to be an adjustment made to account for running vs walking, since the foot does not necessarily rest for the same 100ms period while running. Granted, if the sensors are simply measuring the "stillness" of the foot planting, then calculation adjustments should only be limited by the reset period/accuracy of the sensors.
- londons_explore 9y agoThe time period of stillness isn't important for this technique.
- mirashii 9y agoIt is, for a few reasons. For one, you need to be able to detect the period of stillness, and so how certainly you can detect that time window is a function of how long it is. Second, you need to be able to make a number of measurements from your IMU during the downtime. If you have an IMU that works at 20Hz and your period if stillness is 100ms, then you know you can get a measurement in. If your period of stillness is 10ms, then you can't.