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Unread 30-04-2012, 10:39
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FRC #0011 (MORT - Team 11)
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Re: Intermittent connection on field only

Quote:
Originally Posted by Al Skierkiewicz View Post
Okay Brian,
Since you don't know me or my skill set, let me explain. My real job is troubleshooting electronic failures down to the component level. A position at which I excel. I know that power can be a definitive issue with many problems that exist and I know both how to diagnose those issues, and how to correct them when they fail or are designed improperly. Power supply noise in digital systems is nothing compared to the noise generated in analog audio systems where microphone levels are in the -60 to -90 dBm (that's millwatt for those who are wondering) range, can require as little 4 microamps from the power supply and where noise is considered bad when it is only 20 db above the theoretical noise floor. I have been telling you for weeks that power is not the issue you have deemed it to be but you have failed to believe me or the others in this forum that are trying to get you to accept that fact. While there are problems (and they have yet to be diagnosed), power is not the greatest of these. How can you even think that those people who are researching every possible failure point have not considered looking at the power supply first? So to borrow from others, stop muddying the waters, perform your tests and bring us real data that can be duplicated in the lab or field and actually correlates to failures of the robot wireless link. Until that time I will only respond to others seeking real answers.
Your professional credentials have nothing to do with this Al. Nothing at all. You are not testing each and every robot personally.

You know very well that I can't test a competition field environment without a competition field. So you're telling people that I should basically test something you are insuring can not be tested.

Furthermore, each and every robot on that field is wired differently. Your argument that you've tested this out fully simply can not be true. You have only tested the ones you've tested. So your lots are smaller and the results are always rushed because you most often do those tests on team's robots when you access them during a competition and you only test the ones that do not work. Worse you don't have a complete tool set to test on the field during the matches.

The point again, for all to read, is not that all issues are power quality issues. The point is that when you do have power quality issues you are effectively putting those teams at a disadvantage. I fully admit...again and again in this topic there are more problems than merely the power quality.

The only thing I offered was a way to help identify and remove those power quality issues when they exist I left the rest to you to figure out.

Note: this next part was posted before Al edited his post.

So far as this not being a real issue...you prove once again that Team 11 and other teams finding bad power supply components feeding the D-Link AP is not considered a real problem. It's not a real problem why? Perhaps because Team 11 and these other teams weren't on the Einstein field? Going to be hard to get to that field when our not so 'real' problems get in the way.

Last edited by techhelpbb : 30-04-2012 at 12:31.