Hello,
I use RaceChrono for a long time and i like it very much. But since i have upgraded to pro version it seems to work slow on ODB data. I use the same android smartphone, the same ODB device and the same gps receiver. i have tried all different ODB settings, i have removed unnecessary channels but it wont be as fast as before. I have made a screenshot to show what i mean. you can see the speed from gps and ODB. The ODB speed looks like stairs, and all the other ODB data would be slow too. But at recording time ist say about 4 fps. I don't know how to solve the problem. Hope you have some ideas or suggestions for me.
Screenshot
https://www.dropbox.com/sh/gjl36ip7w3mi6kz/AAChe5kbwOTjOkaHbdvH0t5Yaregards Gerhard
Comments
RaceChrono Pro and Free has same OBD-II code so it's not that. But I did make some changes to it during the summer. Also are sessions of both of the screenshots recorded with same setup OBD-II reader + Vehicle?
Please turn on RaceChrono > Settings > Expert settings > Save device output. Then run a new session with OBD-II connected to the car. You need to drive around a bit to capture some changes on the speed. Then you should have device_output_*.obd file in the new session's folder. Email that to tracks(at)racechrono.com so I can see what's wrong.
Please use default expert settings for OBD-II, which are Protocol: 0, Slow channels - Unchecked and minimum delays.
PS: Yes the same setup ODB-II reader and vehicle ... i can send you more data if you need
regards Gerhard
Could you do me a favour, please log another session with only the speed channel enabled. The log you sent me gives me a clue what could be wrong, but it's still inconclusive.
with the refresh rate.
https://www.dropbox.com/sh/gjl36ip7w3mi6kz/AAChe5kbwOTjOkaHbdvH0t5Ya
regards Gerhard
regards Gerhard
Screenshot:
https://www.dropbox.com/sh/gjl36ip7w3mi6kz/AAChe5kbwOTjOkaHbdvH0t5Ya#lh:null-2014-10-14 19.01.14.png
regards Gerhard
Notice the "stairs" appear with the normal 1 km/h resolution as well in similar conditions. It would require decimal values to appear smooth at every situation.