synchronizing tasks

[Philippe Bruyant]

Hello experts,
I am using LV 7 Express and WinXP. I acquire images using 6 network video cameras. Using a while loop, the data (mjpg streams obtained using TCP Read VI)are constantly downloaded, but not saved untill I decide to. For sake of synchronization, when I click a "Start saving" button, I would like to start writing the data to disk exactly at the same time for all streams. I have the feeling that some synchronization VIs would be appropriate for this job, but I don't know which ones to use: Notifiers, semaphores, Queues, Rendez-vous, occurences. What would be best?
Thanks!
Phil

[Bush-Man]

Hi Philippe,

From my experience, You should use the Occurences. They are easy to use and are very fast, so your collected images will be saved togther at once.

It's like a triger that you fire, for collecting the images to the disk.

Q: Are all the acquire images are at one while loop ? If not, the Occurence sulotion will be more powerfull.

Hope it Helps...

[Philippe Bruyant]

Hi Bush-Man
Thanks for the reply. I am going to learn how to use the
occurences.
Each camera has its own while loop.
Phil