hopeelise
Hi all,

I'm having some real trouble with inserting lap beacons on a dataset.

I want to compare two drivers times, however one driver's laps didn't always record as he was passing another car when passing the lap beacon.

I have looked at the data and found a significant dip in one of the damper pots which represents the end of a lap. I have tried to offset the data and overlay it with the other driver, then manually insert a lap beacon but the laptimes just aren't feasible. It seems as though I can get a realistic first lap time, but when I then offset any further data it all goes a bit pear shaped.

Is there an easier way to do this or does anyone have any experience doing this?

Any help would be much appreciated,
Hope
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Mark_F
Hi Hope,

Please follow the guide attached to this post.  This should at least give you a starting point.  If you still have questions after attempting the recommendations in the article, please let us know and we will be happy to assist.

Thank you,
Mark

M272, 2JZ, EJ25 Power!

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hopeelise
Thanks for the attached file Mark.

The problem I have is that I don't have any times to insert a second lap beacon (this data is just from a test day). So how do I go about inserting 8 lap beacons in this instance?

Thanks,
Hope
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Mark_F
Hope,

Instead of basing upon lap times or artifacts, you could then overlay the data in distance based mode and then put the distance the same as your other dataset for a lap, or the average of their lap distances, or you could overlay and select where it would align with the other lap marker.

If you have at least one or two beacons in there, that would give you at least a set reference that you know is true.  You could then work either backwards or forwards from that point by inserting the beacon based upon distance.

To toggle between distance and time in an Time/Distance graph, you can either right click and change the mode, or press 'D' while the display is active.  
If you have the two datasets overlayed, you should start to see the pattern.

Screenshot1.jpg 


I like to put up the complete outing from the good dataset.  Then I like to insert a beacon into the second dataset.  I added the damper traces to assist with ensuring they were aligned from various pit out locations:

Screen Shot 2.jpg 


Next either by using the navigator display(top of picture), or by double clicking to select the regions (laps), in the good dataset, I select laps 2-last lap.Then on the bad dataset, I select the second /newly created "lap" and then have the beginning of that lap align with the beginning of lap two from the other dataset.  You can then see the beacon on the good dataset.  click at that exact point.  Then swap to the other dataset by clicking a channel (in this case blue) on the right hand side.  This will allow you to then right click on the cursor point you created and insert another lap marker:

Screenshot3.jpg 


I will then have a dataset with two complete laps (an out and a beacon to beacon lap).  I then take the last lap (laps 3-end) and do the same thing with aligning the next beacon.
Screenshot 4.jpg 

Then i repeat by selecting the "last" lap in the bad dataset and continue to match the beacons up by flipping back and forth.  You can do a bit of offsetting if your drivers' lines differ enough to manipulate the results.

I would not be surprised if there is a need for a little bit of adjustment.  The above data is sourced from F1 drivers.  Their repeat-ability is machine like.  Then again, was this data from when the machines ran the cars?


Please let us know if the above is confusing.  I realize it may seem quite wordy, but I guarantee there is a solution there.

Have a great day,
Mark

M272, 2JZ, EJ25 Power!

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