How to save daq data-in(from 2 channels) in 2-D arrey?

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  Mr President.

  How to save the data in table 1 d to Excel at all times, so that all the data of the first scan must be placed first thought and all the data from the second analysis must be placed on the second Board and continue on the street...

  Sy@m...

  Hi Sy@m

  Here is a vi that might give you a few ideas to try:

• How to save the data in a form called?

  Hi all.

  I have two froms.like FORM A and FORM b.

  I have a button on the FORM B.

  When I click on this button, FORM B and FORM data should be store in the database...

  I wrote something like this in the form B

  when_button_pressed->

  commit_form;

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  commit;

  Here, my problem is when I click on save button only saved FORM B, FORM A not memorizing the data in the database.

  Please help me and tell me where the error...

  Post edited by: N.B.Babu

  I guess that the modules form a calls B with OPEN_FORM module (..., SESSION), IE. Module B works in the new session of database

  (by the way, the database connection is the same, because the connection to a database can go several database sessions).

  Your code cannot save the data in the two sessions of database:

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• How to save the data of different rates in a single VI?

  Hello

  I tried to acquire 2-channel measurement of voltage at 10 kHz and analyze data, finally to save the data to both 1 kHz and 1 Hz. What I did is this loop of producer/consumer use to do the work of recording at different rates. I have queued all the data in the main loop, and then removed the data and write it to the file in other loops. I added "wait = 1 ms' a consumer loop for recording data at 1 kHz (loop of fast logging) and added" wait = 1000ms' in another loop to get the slow 1 Hz (logging loop) data record.

  My problem is that the data record works fine in the case of 1 Hz, but it does not work for the case of 1 kHz. Although the time-out period defined as 1ms, the interval between two samples in the loop of fast data recording is about 100ms.  Subsequently, 1ms, 10ms, 100ms, 150ms tried in this loop to see what intervals are in these cases. I found that the intervals are same as assigned in the timeout greater than 100 ms, but if the time-out is set to 1ms or 10ms, the intervals are again around 100ms.

  My question is - why I can't reach data record 1 kHz using loop of consumers/producers, while the same way works for the case of 1 Hz?

  Thank you very much

  Hao

  You are sampling at 10 kHz and you want to back up your data "as if you sampled at 1 kHz and 1 Hz", if I understand correctly.  I also understand that you use the design of producer/consumer model to help with this (a good idea).

  I'm assuming that the producer 'product' a segment of data at a time, to say the value of a second of data or a 2 x 10000 I16 (assuming a 16-bit integer A/D) table you put into a queue and wait for the consumer.

  If you have data at 10 kHz, how do you get representations to 1 kHz or 1 Hz?  There are (at least) two possibilities - average data over the interval of proper time, or (re) sample data.  The good thing is that you can handle the situation 1 kHz and 1 Hz, essentially at the same time and in the same processing loop.  I'll discuss the case 1 kHz - with the assumptions I made, the case of 1 Hz becomes almost trivial.  I'll discuss treatment also just one channel, as it is similarly almost trivial to go from 1 to N-channel.

  If you have 1 second of data sampled at 10 kHz, and will "reduce" 1 second of data sampled at 1 kHz.  Note that you have 10 samples for each data point that you want in the end.  The "Averaging" method said "Replace all 10 points in the average of these 10 points", while "resampling" method said "replace 10 points with, say, the first point, ignoring the others.  An easy way to do this is to use the Reshape feature to transform an array of 10 x 1000 elements of your array of 10000 items 1-D 2D.  Now, you can use a loop FOR an average of 10 items or simply extract the first.  [This is where almost everyone, including me, a mistake - when you put a 10 x 1000 2D array in a loop, you get 10 iterations of 1000 items and we want 1000 iterations of 10 items.]  Oops, what to do?  [Simple - converts 2D array before sending in the loop FOR.]

  So when you have processed your 10,000 points and got both 1000 samples "1 kHz" and 1 "1 Hz" sample, you write each of them in their respective folder and wait for the next item in the queue of the consumer.  Consumer focus on the queue loop, it will automatically 'block', waiting for the producer of the 'feed' some data.  Note that the producer generates data once per second, producing 10000 points for the consumer in the process, but the time to deal with these points and perform the required disk i/o should take only a few milliseconds (certainly not more than 100, even if writing to a floppy!), so you don't have much time to do other interesting things (such as display data).

  Bob Schor

• How to save table data to save to PDF using php?

  Hello

  I have a load of data loading into a table of data in mysql table. Since I create a "save data" button to save the data in the table in pdf format. can someone help me how to save it and show me a few steps. Here is my code for the table:

  <?php
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    $username = "root";
    $password = "pass";
    $dbname = "ses";
     
     
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    if ($conn->connect_error) {
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    }
     
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    $result = $conn->query($sql);
    ?>
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    </tr>";
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  and here is the HTML for the button:

  can someone help me?

  Thank you

  Look at the script on the FPDF under 'Scripts' site below

  2002-12-25

  Olivier

  Table with MySQL

  First you must download the file of fpdf.php since the site under the downloads"" section.

  Copy the first block of coding 'Source' from the example script and save it under-mysql_table.php

  Next copy the second code block and insert it into a new document in DW, modify the code as shown in red below and save it as pdf_output.php - make sure that the paths to include the mysql_table.php and the (fpdf.php file which is included in the mysql_table.php file) are correct.

  Also change the connection to your database in the code below.

  require('mysql_table.php');

  class PDF extends PDF_MySQL_Table
  {
  function Header()
  {
    //Title
    $this->SetFont('Arial','',18);
    $this->Cell(0,6,'Database Data',0,1,'C');
    $this->Ln(10);
    //Ensure table header is output
    parent::Header();
  }
  }

  //Connect to database
  mysql_connect('server','login','password');
  mysql_select_db('db');

  $pdf=new PDF();
$pdf->AddPage();
//First table: put all columns automatically
$pdf->Table('SELECT No, Calon, ID, Jurusan, Undi FROM candidates order by Undi desc');
$pdf->Output();
?>

  If you have set up properly and navigate to - pdf_output.php - it should produce a pdf of the extracted data in your database.

  A draw back is it uses mysql and mysqli - which is not an immediate problem, as long as you do not mix mysql and mysqli - as this is a stand alone page, it should be ok. (and of course as long as your server still supports the mysql extension)

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