Having problem using Fuzzy Logic Controller

[chai0036]

Hi to all,

I'm having alot of problems with the Fuzzy controller.

I cannot understand how to use the fuzzy controller in the labview. It looks like it is totally different from my understanding of fuzzy control.

Isn't there suppose to be a place where i can input my fuzzy control rules and also my so call input signal?

By the way, the system I'm trying to build is a fuzzy control SNP delivery system. The version of my labView is 8.5

Hope to get a reply soon.

Thank you.

[Barp]

Hello,

Yes, you can enter your rules in the Fuzzy Editor. To do that, you have to go to menu "Tools>>Control Design and Simulation>>Fuzzy Logic Controller Design".

After you created you rules and define the membership functions, you have to save the data to a file and, in your code, you have to use the "Load Fuzzy Controller.vi" to load into a LabVIEW diagram. This VI generates a cluster that you have to wire to Controller Data.

The input of the controller is called "in1". You have up to 4 inputs with this controler.

For more information, the Toolkit ships with a detailed manual that describes how Fuzzy works in LabVIEW, which we unfortunately call "PID_User_Manual.pdf".You can find in" C:\Program Files\National Instruments\LabVIEW 8.5\manuals".

Also, there are some examples that shows how to use Fuzzy in LabVIEW.

Hope this helps!

[chai0036]

Thanks for the reply. I'm now trying out with the Fuzzy controller. Thanks!!

[Bruno_Cesar]

Hello all

The PID and Fuzzy Logic Toolkit 2009 was completely redesigned.

There are new API VIs and a more intuitive user interface for creating controllers.

You can create MIMO controllers with unlimited inputs and outputs, and also modify the controller on-the-fly.

Check it out the new features and let us know your needs on Fuzzy control.

LabVIEW PID and Fuzzy Logic Toolkit User Manual

Regards,

Bruno Cesar

National Instruments