We are thinking on whether it is possible to implement odometer in Over Under as if we drive over obstacles, how will it be possible to compensate for it in the algorithms. Also, is there any known way of making odometer reliable in such situations (not getting stuck on the field or the obstacles), or is it not worth it and we should get the GPS field strips and units instead (they are quite expensive though). Many thanks!
There is no way you can track position reliably while going over the middle pipe on the floor. If you have a sideways tracker (perpendicular to the direction of travel) it will probably get stuck as well. The probable solution here is to use a pneumatically actuated tracking system with resets after going over the middle bar. (Or, more likely, just not going over the middle bar in programming skills.
I’m curious as to the purpose of tracking after crossing the barrier. I don’t believe it can be crossed in auton, and there’s not really any tasks that need auto assist this year… unless you plan on something crazy with the match loads, but a simple wall jig could outdo anything a sensor could offer in that case.
Our school does fundraising for world’s every year, and that is a great time to work on getting extra funds for parts, but I guess that would be a little late this year. I would recommend looking into robotics grants or sponsorships, because there are tons of companies out there looking to support robotics. For example, Roseburg Lumber, in Oregon, visits FRC competitions to hire students and hand out literal thousands of dollars in money simply for students to consider them as a job option.
Grants and sponsorships go for paying for parts in general, and I would consider the gps sensor worth it, although you should know that we have had a few burn out and had to get them replaced by Vex, creating serious wait time where you aren’t really sure what to do. Overall, in terms of robotics applying to the real world, the gps sensor provides good experience in actual application of robotics, so in that sense, yes, it’s very much worth it of you have the opportunity to consider it. It will probably also improve your competitive game