Mux/Demux for physical signals

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Christian 2020-6-17

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https://ww2.mathworks.cn/matlabcentral/answers/549810-mux-demux-for-physical-signals

评论： wwmathchat 2021-12-3

Hi!

Given a physical signal vector, how can I split up the vector into its components? That would be something like Mux/Demux for physical Signals.

Example:

inVector = {[1, 2, 3], 'm'};

outScalar = {1, 'm'};

outVector = {[2,3], 'm'};

What I could do ist to use PS-Simulink-Converter → demux (→ Mux foroutVector) → Simulink-PS-Converter. But in this case I get an error creating a composite component of it.

Probably I could create a custom component for splittin the signals up, but that seems a bit cumbersome to me.

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Answer 1

Joel Van Sickel 2020-8-5

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Hello Christian,

you are unfortunately correct in that you must create your own mux and demux blocks for simscape physical signals. There is a simscape bus, but it only works for standard bi-direction physical connections, and does not support physical signals. If you have the simscape electrical toolbox, it does have some prebuilt mux and demux options built in for the converters.

Regards,

Joel

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Christian 2020-8-10

This is not the answer I wanted to hear ;-)

Thank you anyway. So I don't need any further research for this.

wwmathchat 2021-12-3

Did you figure out how to make a mux, Christian? As far as I can tell, it's not possible to make a mux/demux custom component with variable input/output size in simscape because for loops are not allowed for input and output definitions.

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