Hi!
We are trying to control in real time the frequency of a vibration motor with a voltage signal proportional to EMG activation.
Our EMG sends data to a LAN port and we read them in Labview using the UDP Read function.
We created a VI which reads data from UDP connection, parses the header and does the decoding (according to the data type of our EMG device, TMSi Porti).
Every sample read from UDP port is passed to the Matlab script node which implements a Bayesian filter which returns a value (MAP) used to control the vibration frequency.
The problem is that this operation is extremely slow...(about 15 seconds!!) and we need it to be real time!
We tried also a simple MA filter and the delay is reduced to around 2 sec, so we think that the major problem is in the Matlab script node.
We wonder if this delay is due to the call of an external code (Matlab) or to the complexity of the Matlab code itself.
Do you know how to improve the performance of this VI?
Thank you!
Serena
