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Jingchao Li


Northwestern Polytechnical University

Last seen: 3 months ago Active since 2020

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Question


Simulink and Simscape models built in 2021a do not work properly in 2021b
I built a bipedal robot locomotion control model using Simulink and Simscape in 2021a. When I ran this model in 2021b, the resul...

6 months ago | 1 answer | 0

1

answer

Answered
How to calculate robot center of mass Jacobian matrix in Simulink?
Use 'center of mass' function and matlab system block.

6 months ago | 0

| accepted

Question


How to calculate robot center of mass Jacobian matrix in Simulink?
We can use the Get Jacobian module to calculate the Jacobian of the robot geometry, but how to calculate the Jacobian of the cen...

6 months ago | 1 answer | 0

1

answer

Question


How to co-simulate Simscape multibody and unreal engine?
I have built a biped robot model in Simscape multibody, and now I want to use the unreal engine to simulate the vision and radar...

12 months ago | 1 answer | 0

1

answer

Question


How to calculate the centroid angular momentum of multiple rigid bodies in Simscape Multibody?
How to calculate the centroid angular momentum of multiple rigid bodies in Simscape Multibody?

1 year ago | 1 answer | 0

1

answer

Question


How to calculate the common center of mass position of multiple rigid bodies in Simscape Multibody?
How to calculate the common center of mass position of multiple rigid bodies in Simscape Multibody? I think it is possible to g...

2 years ago | 2 answers | 0

2

answers

Answered
How to solve the discontinuity of MPC controller output?
hen I use the discrete derivation module, the problem is solved

2 years ago | 0

| accepted

Question


How to solve the discontinuity of MPC controller output?
In simulink, I used the MPC toolbox to obtain the control value calculated by MPC with a sampling period of 0.05s. In the follo...

2 years ago | 2 answers | 0

2

answers

Question


When using Simulink Desktop real-time external mode, there is a serious delay and mismatch between the data sent by UDP to the FPGA hardware and the data received by UDP.
I sent a sine signal to the FPGA hardware through the packet output module, and at the same time the FPGA hardware sent the sign...

2 years ago | 0 answers | 2

0

answers

Answered
In the process of reinforcement learning training, the training was terminated erroneously because the data dimensions did not match.
When I go back to the 2019b version to run, no error is reported

2 years ago | 0

Question


In the process of reinforcement learning training, the training was terminated erroneously because the data dimensions did not match.
I am trying to transfer the "Training with Reinforcement Learning" from the sample program "Train a Humanoid Walker" to another ...

2 years ago | 2 answers | 0

2

answers