Timeline for Calculate speed from accelerometer
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Jul 30, 2015 at 10:54 | comment | added | Simone | Because 1g does not produce any "visible" velocity, but as said above, the accelerometer can't distinguish between gravity and other accelerations. So you subtract 1g knowing that any other acceleration seen apart from that one will have produced an actual velocity pointing in some direction: if the acceleration measured is less than 9.8, then the velocity is negative so pointing towards the floor, if it's more than 9.8 it will be a positive velocity pointing towards the ceiling/sky. (Conventionally the 1g vector points from the floor to the ceiling). hope i've been clear enough! | |
| Jul 29, 2015 at 16:19 | review | Late answers | |||
| Jul 29, 2015 at 16:24 | |||||
| Jul 29, 2015 at 16:09 | comment | added | Kyle Kanos | Why do you need to subtract 1g? | |
| Jul 29, 2015 at 16:01 | review | First posts | |||
| Jul 29, 2015 at 16:09 | |||||
| Jul 29, 2015 at 16:00 | history | answered | Simone | CC BY-SA 3.0 |