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Hello sir. I miss your lectures

Woow, so cool. I love i

top class work! i am very grateful for this, thank you.

this is by far the most direct and interesting lecture about system identification a self taught control engineer could have!

I don't fully understand what the benefit is to having the last 2 samples in integral calculation. Isn't the area from t-1 to t-2 already represented in previous integral? Why not just do Ts((e(t)+e(t-1))/2)+previous integral? Wouldn't that also give you the integral? I know this video is quite old but I hope that you might still read the comments and are willing to explain this a bit more.

Thanks nice explained

Hello Dr.James, Can you please explain why have you used Y =y(3:N)', Why do you start from the Third row. Also If I have a 2input and 2 output system what will be the changes i have to cosider? Especially with respect to the lines 22 and 24?

Can you explain why it stops when the rear sensor sees an "obstacle" while the wheel is rotating forward? What is the purpose of that? (Seems like a programming error. For example: if you ride a bike too close behind the car, the car brake checks the biker?)

Thank you for this video. I'd ask, how to simulate or model a system if the sampling time T_adc is multipied system sampling time T_s? Lets say, a system samples motor speed with T_s and current with 4+T_s. I have no idea, how to write equations.

It is very powerful❤

Could you explain how to do it

Can I know plant of system?

Great video! I have a question regarding the proportional (kp), integral (ki), and derivative (kd) gains in 17:30. Are these gains the same as those used in the continuous-time domain?

Thank you very much! It helped me a lot for my thesis!!

Can i get full video of this ..

Amazing. Simple and clear. Direct to the point.

good

Can I get full video🎉🎉🎉

thank you Dr James your video really helped me

I find the fact that the pole location on the z plane is a function of sample interval in this lecture. From the mapping I find, if the value of Ts(sampling interval) mulitply wn(undamped oscillation frequency) is bigger than pi, the discrete system will be unstable. Is the statement is right? Professor.

Professor, for example 2, the discrete feedback system is divergent when controller kp is 25， because the eigenvalues of system are z1=-4.0226,z2=-0.4692. While, the continuous system is stable and works well.😀

For a beginner of learning discrete control, the lecture is concrete and easy to understand. Thank you for sharing!

HELLO SIR can we convert an existing arx model to transfer function model ?

i used a pi controller to control a simple first order system, and i used pso algorithme the find best pi parameters, but the simulation stop in the begining and show this message : Derivative of state '1' in block 'robot_simple_control/Transfer Fcn' at time 9.2 is not finite. The simulation will be stopped. There may be a singularity in the solution. If not, try reducing the step size (either by reducing the fixed step size or by tightening the error tolerances)

Hi Dr, are you able to assist students with Matlab and assimilating?

how do we determine the units of gain K and tau?

What I’d find very useful would be to take a simple situation such as a tank with a level controller (liquid system) or a tank with a pressure control (gas system) and derive a differential equation to model tank filling, transform it into the Laplace domain and create a transfer function. Then use the transfer function in Simulink together with a PID controller to simulate upsets and system responses. That would provide the building blocks for many real world situations with process plants with the tools to analyse many practical situations.

At last a practical application that makes sense!

can you provide me any playlist for transfer function of electrical and mechanical system?

إخواني وأخواتي بالله يأهل ياعباد الله الصالحين نحنا بنات أيتام أولاد صغار طالبي العون والمساعدة منكم وجه الله تعالى والله مهجرين من بلدنا مالنا معين من بعد الله أمي مريضه محتاجه دواء حتى تأمين صحي قطعو عنها اناشدكم بالله محمد رسول إلى من لديه الرحمة يشفق علينا الأيام الصعبة والقاصية التي تمر بنا أناشدك بالله

إخواني وأخواتي بالله يأهل ياعباد الله الصالحين نحنا بنات أيتام أولاد صغار طالبي العون والمساعدة منكم وجه الله تعالى والله مهجرين من بلدنا مالنا معين من بعد الله أمي مريضه محتاجه دواء حتى تأمين صحي قطعو عنها اناشدكم بالله محمد رسول إلى من لديه الرحمة يشفق علينا الأيام الصعبة والقاصية التي تمر بنا أناشدك بالله

Sir is the output of temperature sensor signal in this case an AC or DC?

Very helpful, thanks.

Thank you sir, this was extremely helpful. would you please send the matlab code?

Hey James, how would I set the led to be on for a certain period of time and off for a certain period of time?

thank you

Harold is a nice python library for control system design and analysis for both SISO and MIMO systems. import harold import numpy as np import matplotlib.pyplot as plt def arx_sim(a, b, u, t, dt=1.0): den = [1] + [-i for i in a] num = b Gz = harold.Transfer(num,den,dt) y, t = harold.simulate_linear_system(Gz, u, t) return y.flatten(), t def arx_step(a, b, t, dt=1.0): u = np.ones(len(t)) return arx_sim(a, b, u, t, dt) def arx_impulse(a, b, t, dt=1.0): u = np.zeros(len(t)) u[0] = 1 return arx_sim(a, b, u, t, dt) num = [1, 2] den = [1, 1, 2] dt =0.01 G = harold.Transfer(num,den) Gz = harold.discretize(G,dt,'tustin') denz = Gz.den.flatten() a = list(-1*denz[1:]) b = list(Gz.num.flatten()) tss = 20 t = np.arange(0,tss,dt) y, t = arx_step(a, b, t, dt) plt.plot(t,y) plt.show()

I could code an ARX model by just watching your video 🧡 Thank you

This video was very helpful to me ,thanks❤️

Hi James, can you explain the reason why you picked this combination of values for R&C? I am trying to understand how to derive the design of a low pass filter for these types of IC sensors - I cant get my head around what I should be using as my cut-off frequency?

Thank you sir!

Very helpful and clear explanation! Thanks!

your channel is so good mister... save me from project deadline.. thankyou so much. greetings from Indonesia

can u tell me where is the controller part/block controller?

Plz give me the name of book

What software are you using to display this?

May you please provide a link to slides?

Great vid🔥🔥🔥

Awesome