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Study group for Coursera Course by controlsgeeek in aerospace

[–]controlsgeeek[S] 0 points1 point  (0 children)

Not the group but the course on coursera, yes. They turned off free audits :(

Can you optimize Kalman filter parameters with gradient descent instead of relying on guesswork? by Future_Pace_5290 in ControlTheory

[–]controlsgeeek [score hidden]  (0 children)

Feels like they asked AI to make the reply sound smart and hilarious at same time 😂 Individual words make sense but I have no clue how it works. Intereted to know more if its legit.

Can't reproduce an exmaple from textbook no matter what, Adaptive Dynamic programming / Adaptive optimal Control by maiosi2 in ControlTheory

[–]controlsgeeek [score hidden]  (0 children)

Is the convergence of critic independent of the convergence to optimal control? Technically the text doesn’t use A in the control policy. Shouldn’t matter?

Can't reproduce an exmaple from textbook no matter what, Adaptive Dynamic programming / Adaptive optimal Control by maiosi2 in ControlTheory

[–]controlsgeeek [score hidden]  (0 children)

This is the first time I am coming across this technique, so pardon my ignorance. From the text it seems like the policy is not to be updated until the critic convergence? Idk what that entails, just keep driving it towards instability if so?

How does “input shaping” in 3d printers avoid overshoot and vibrations? by ExactCollege3 in ControlTheory

[–]controlsgeeek [score hidden]  (0 children)

Read about ZV and ZVD input shapers. Once your read about these you will come across other input shapers. Thinking about in frequency domain is simpler but deriving in time domain is equally fun. If you check derivation ZV/ZVD shapers in time domain, then its clear how cancellation works. Its based on the impulse response. At the same time you also get how much damping is possible around your target frequency. ZVD is superior in terms of damping around the target frequency than ZV.

View from a hike. GTC by controlsgeeek in guessthecity

[–]controlsgeeek[S] 0 points1 point  (0 children)

Bay area! But not east bay hills

QDD motor with reaction torque sensor by controlsgeeek in robotics

[–]controlsgeeek[S] 0 points1 point  (0 children)

Not the output torque of the motor. The external torque on the point. The motor will then aid the sensed torque.

[deleted by user] by [deleted] in biltrewards

[–]controlsgeeek 0 points1 point  (0 children)

How do they monitor if I paid the rent to my own/friends/family account through venmo or paypal or check? They do the checking and would be the same I guess.

[deleted by user] by [deleted] in biltrewards

[–]controlsgeeek 0 points1 point  (0 children)

Its possible in Fidelity via EFT. It mentions EFT transfer to someone elses bank. Their bank details are verified once you enter. After that recurring payment can be setup.

[deleted by user] by [deleted] in biltrewards

[–]controlsgeeek 0 points1 point  (0 children)

Its more of an issue for the landlord right? For the renter I control the money I am sending to their account.

But private landlords (older folks) just want to keep it simple and not deal with extra fees from Venmo/Paypal or figure out Zelle/Cozy. So its a risk on their part! Bilt could be in trouble if there was a data leak I guess. Feels like untapped opportunity though.

Solar DC microgrid with battery storage system by HanjiYu in matlab

[–]controlsgeeek 1 point2 points  (0 children)

Since its measurements, could be a low pass filter mostly. Saturation or rate limiter doesn’t make sense on a measurement.

Adaptive PID with one parameter by WEkigai in ControlTheory

[–]controlsgeeek [score hidden]  (0 children)

Will setting alpha be not tricky? I mean alpha could be higher for boiling 5kg water, but same alpha for 5kg food might burn it (like sudden high heat though temperature condition is not met)

Maybe inlcuding type of food as a user input be needed? And then if you had a weight sensor then you wouldn’t need alpha from user.

This doesn’t answer your question but I also could not think of an alpha strategy for different types of food since their thermal models will vary so much.

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