The queue from table question

I had a recent application where I wanted to take 100 samples of something then get the RMS of the dara. This is happening in a loop, and until the end of the program. Very basic stuff.

  • Method of the QUEUE:
  • Get queues with max 100 items.
  • Queue data (data arrive on every 50mS).
  • Get the status of the queue when the number of items is 100...
  • ... Empty the queue and get all the items (which of course will be a prison guard) and use the RMS funtion.
  • Repeat

---------------------

  • TABLE method:
  • Initialize the array with 100 elements of the DBL 9999.99 (it is a value that can only happen in the data)
  • Insert data in the table to help replace a subset of table
  • When 100 index isn't 9999.99, then...
  • ... Put the table in the RMS function, then re - initialize the full array of the 9999.99
  • Repeat

My questions are, who should be faster, including better management of memory?

Thank you!

Why not just use the RMS PtByPt VI. In this way, you don't need to store data at all? This may require that marginally more calculation, but will require less memory.

If you insist on the pad, I'd probably go with the table for simplicity. I think you can simplify your system to determine when to treat well. No reason to have all these 9999.99 is here.

Chris

Tags: NI Software

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