Sampling - in parallel with different rates

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• inflation with different rates per year

  what I'm doing wrong here
  try to get the compound inflation 20 years (from 2001) where the inflation rate is increasing every year.
  
  Miss me something basic, my swollen amt is coming nothing when I use
  
  inflated_amt [iteration_number + 1] = inflated_amt [iteration_number] * (1 + inflation_rt [cv ()])
  
  If I change
  
  inflated_amt [iteration_number + 2] = inflated_amt [iteration_number + 1] * (1 + inflation_rt [cv ()])
  I'm close, but miss me my first year (2001)
  
  in any case, here's my query
  
  with
  inflation_table as
  (select level j, level + yr 2000, level * inflation_rt.01)
  of the double
  connect by level < 21),
  base_amount_table as
  (select level * 10 base_amt from dual connect by level < 3)
  
  Select yr, inflation_rt, base_amt, inflated_amt
  to inflation_table, base_amount_table
  model update return lines
  partition (base_amt)
  (j) dimension
  measures (inflation_rt, year, base_amt inflated_amt)
  iterate rules (20)
  (
  
  inflated_amt [iteration_number + 1] = inflated_amt [iteration_number] * (1 + inflation_rt [cv ()])
  )
  
  Published by: pollywog on March 25, 2010 12:51

  In fact, you probably need this:

  with inflation_table as (
                           select  level j,
                                   level + 2000 yr,
                                   level * .01 inflation_rt
                             from  dual
                             connect by level < 21
                           ),
      base_amount_table as (
                            select  level * 10 base_amt
                              from  dual
                              connect by level < 3
                           )
  select  yr,
          inflation_rt,
          base_amt,
          inflated_amt
    from  inflation_table,
          base_amount_table
    model
      partition by(base_amt)
      dimension by(j)
      measures(inflation_rt,yr,base_amt inflated_amt)
      rules
      (
       inflated_amt[1] = inflated_amt[cv()] * (1 + inflation_rt[cv()]),
       inflated_amt[j > 1] order by j = inflated_amt[cv() - 1] * (1 + inflation_rt[cv()])
      )
  /
  
          YR INFLATION_RT   BASE_AMT INFLATED_AMT
  ---------- ------------ ---------- ------------
        2001          .01         20         20.2
        2002          .02         20       20.604
        2003          .03         20     21.22212
        2004          .04         20   22.0710048
        2005          .05         20    23.174555
        2006          .06         20   24.5650283
        2007          .07         20   26.2845803
        2008          .08         20   28.3873468
        2009          .09         20    30.942208
        2010           .1         20   34.0364288
        2011          .11         20   37.7804359
  
          YR INFLATION_RT   BASE_AMT INFLATED_AMT
  ---------- ------------ ---------- ------------
        2012          .12         20   42.3140882
        2013          .13         20   47.8149197
        2014          .14         20   54.5090085
        2015          .15         20   62.6853597
        2016          .16         20   72.7150173
        2017          .17         20   85.0765702
        2018          .18         20   100.390353
        2019          .19         20    119.46452
        2020           .2         20   143.357424
        2001          .01         10         10.1
        2002          .02         10       10.302
  
          YR INFLATION_RT   BASE_AMT INFLATED_AMT
  ---------- ------------ ---------- ------------
        2003          .03         10     10.61106
        2004          .04         10   11.0355024
        2005          .05         10   11.5872775
        2006          .06         10   12.2825142
        2007          .07         10   13.1422902
        2008          .08         10   14.1936734
        2009          .09         10    15.471104
        2010           .1         10   17.0182144
        2011          .11         10    18.890218
        2012          .12         10   21.1570441
        2013          .13         10   23.9074598
  
          YR INFLATION_RT   BASE_AMT INFLATED_AMT
  ---------- ------------ ---------- ------------
        2014          .14         10   27.2545042
        2015          .15         10   31.3426799
        2016          .16         10   36.3575086
        2017          .17         10   42.5382851
        2018          .18         10   50.1951764
        2019          .19         10     59.73226
        2020           .2         10   71.6787119
  
  40 rows selected.
  
  SQL> 
  

  SY.

  Published by: Solomon Yakobson, March 25, 2010 13:12

• acquisition of data with different sampling rates high

  I have a few questions on the use of the OMB-DAQ-3005 with different sampling rates high.

  For our application, we have 8 analog inputs. Which two are a quick response and should be sampled frequently.  We have an encoder quadrature (CPR 1000 running at 1800 rpm).  We plan to sample X 4 encoder.  For the analog inputs for the quick response, we want to trigger a sample of each pulse or each a few pulses, thus creating a timestamp with the position of the encoder with respect to position index as well as two fast analog inputs.  We have data correlating the analog inputs with the position of the encoder.   Other analog inputs, we want to measure relatively slowly (for example once every 5 dry or similar).

  How can I go on the configuration of the two (or more) sampling rates different wherein I can taste entered at different frequencies?  Also, is there a way to reset the encoder count after outbreak of the index as I have the position of the encoder with respect to the index?

  Maybe you'll find someone here who uses the OMB-DAQ-3005, but this forum is really more designed for LabVIEW programming issues.

  I've never used the OMB-DAQ-3005, but out of curiosity, I took a glance at the Manual of OMB-DAQ-3005.  The answer to both your questions are:

  1. you cannot run a hardware DQA Multiplex (like this one) at independent rates by channel.

  2. the OMB-DAQ-3005 supports an Index Z feature to reset the counter - look for documentation on how to configure any software interface you are using.  If you get stuck, you can try to discover media appropriate for instrument channel.

  Best regards

• Synchronization of the inputs and outputs with different sampling frequencies

  I'm relatively new to LabView. I have a NOR-myDAQ, and I am trying to accomplish the following:

  Square wave output 10 kHz, duty cycle 50%.

  Input sampling frequency of 200 kHz, synchronized with the output that I get 20 analog input samples by square wave, and I know what samples align with the high and low output of my square wave.

  So far, I used a counter to create the square wave of 10 kHz, display on a digital output line. I tried to pull the document according to (http://www.ni.com/white-paper/4322/en), but I'm not sure how sample at a different rate than my clock pulse. It seems that this example is intended rather to taste one entry by analog clock pulse. There may be a way to create a faster clock (200 kHz) in the software and use that to synchronize the analog input collection as well as a slower 10 kHz output generation square wave?

  I eventually have to use the analog inputs to obtain data and an analog output to write the data channel, so I need the impetus of the square wave at the exit on a digital PIN.

  How could anyone do this in LabView?

  Hi Eric,.

  All subsystems (, AO, CTR) derive from the STC3 clocks so they don't drift, but in order to align your sample clock HAVE with pulse train that you generate on the counter, you'll want to trigger a task out of the other. I would like to start by a few examples taken from the example Finder > Input and Output material > DAQmx. You can trigger GOT off the train of impulses, start by Gen digital Pulse Train-keep -you probably already use a VI like this to generate 10 k pulse train. AI, start with an example like Acq Cont & chart voltage-Ext Clk - Dig Start.vi-you'll want to use the internal clock so just remove the control of the "Source of the clock" and it uses the internal clock. From there, simply set the "Source of the command" either be the PFI line generates the meter, or ' //Ctr0InternalOutput '-assuming that you are using the counter 0. You'll want to make sure that the start of the task HAVE faced the task of counter I is ready to trigger off the first impulse. They should be aligned at this point.

  For debugging, you can use DAQmx export Signal to export the sample clock - you can then brought the train line and the PFI pulse to make sure that they are aligned.

  Hope this helps,

  Andrew S

• Displays a text ("sample application") Logo and Description ("this is a sample application") with different font size

  Hello

  
  

  I use the universal theme of apex 5.0 and tries to display logo text ("sample application") and description ("This is a sample application") with different font size.

  
  

  Type of logo - text

  Logo - sample application - this is a sample application.

  I want to display the description in the smallest font size, so I changed the Logo below

  Logo - < span style = "" are-size: 3.8 rem; ' > Sample App </span > - < span style = "" Dimensions are: 1.8 rem; "> this is a sample application </span >" "

  But I have following problem.

  1 - the font size for both is the same (why the size is not different?, because I gave the size of different font within the span tag)

  2 - the text of the whole logo whose description is displayed twice.

  -Once in place of the actual logo and

  -the second on the left upper tree navigation. (just below the text of the actual logo)

  I tried to use the logo attribute, but what makes the whole logo & its description with the same size. I need size of different font for both, so it is unusable.

  Attribute logo - style = "" are-size: 3.8 rem; ""

  Really appreaciate help.

  Thank you

  Deepak

  DeepakJ wrote:

  I use the universal theme of apex 5.0 and tries to display the text of the logo ("sample application") and description ("this is a sample application") with different font size.

  
  

  Type of logo - text

  Logo - sample application - this is a sample application.

  I want to display the description in the smallest font size, so I changed the Logo below

  Logo - application example - This is an example of application.

  But I have following problem.

  1 - the font size for both is the same (why the size is not different?, because I gave the size of different font within the span tag)

  Cannot reproduce. Using the code above results in different format text as expected. (He looks terrible IMO)

  2 - the text of the whole logo whose description is displayed twice.

  -Once in place of the actual logo and

  -the second on the left upper tree navigation. (just below the text of the actual logo)

  Including HTML tags in text in the 5.0/theme 42 APEX logos results in this behavior. I consider this as a bug as (a) it says nowhere that it is not possible to do so; (b) the text of the logo is not HTML - or attribute-escaped when used in the page.

  See How to avoid to show the logo on the navigation bar to get an explanation of the underlying cause and a workaround to allow the common use cases include the text and a picture in the logo. This particular solution is of no use here. The solution to this problem requires a custom with the theme the theme roller style sheet, which is the preferred way and support to customize and extend the universal theme.

  • Click the Thème Roller on the developer toolbar.
  • Expand the CSS custom section.
  • Add this style custom rule:

  .t-Header-logo a span {
    font-size: 3.8rem;
  }
  .t-Header-logo a span:after {
    font-size: 1.8rem;
    content: " - This is a sample application.";
  }
  

  • The page will automatically preview changes.
  • Click on record under and type a name for the style of custom theme.
  • Topic close Roller
  • I hope that decide that it is not a good idea and cancel the mods.

• How to structure the DMA buffer for SMU 6341 DAQ card for analog output with different frequencies on each channel

  I use the outgoing/incoming analog DDK with the DAQ 6341 SMU map.

  The examples, for example aoex5, show a single timer (method outTimerHelper::loadUI), but the example shows the DMA loaded with same size of vector data.

  There is a comment in the outTimerHelper:call rogramUpdateCount, which implies that memory sizes different pad per channel can be used.

  (the comment is: switching between the sizes of the various buffers is not used)

  Nobody knows what should be the format the DMA buffer for data from multiple channels with different frequencies?

  For example, we want a0 with a sinusoid at 1 kHz and a1 with a sine wave of 1.5 Khz.  What looks like the DMA buffer?

  With the same frequency for each channel, the data are interleaved, for example (ao0 #0, ao1 #0; ao0 ao1 #1, #1,...), but when the frequencies for each channel is different, what the stamp looks like?

  Hello Kenstern,

  Data are always intertwined since each card has only a single timing for each subsystem engine.

  To AO, you must specify the number of samples that will be released to the AO. You also specify the number of channels. Because he didn't is that a single engine timing for AO, each AO will be channel will be updated at the same time to update clock tick. Data will be interlaced exactly as shown in the example because each channel AO needs output at each tick of the clock to update. The data itself can change depending on the frequency you want to copy.

  kenstern wrote:

  For example, we want a0 with a sinusoid at 1 kHz and a1 with a sine wave of 1.5 Khz.  What looks like the DMA buffer?

  With the same frequency for each channel, the data are interleaved, for example (ao0 #0, ao1 #0; ao0 ao1 #1, #1,...), but when the frequencies for each channel is different, what the stamp looks like?

  In your example, you must come with an update rate that works for the two waveforms (sine waves of 1 and 1.5 KHz). To get a good representation of a sine wave, you need to update more than 10 x faster than your fastest frequency... I would recommend x 100 if possible.

  Update frequency: 150 KHz

  Channels: 2

  Then create you stamps that include complete cycles of each wave you want to produce based on the frequency of update. These buffers must also be of the same size.

  Buffer 1: Contains data for the sine wave of 1 KHz, 300 points 2 cycles of sine wave

  Buffer 2: Contains data for the sine wave of 1.5 KHz, 300 points, 3 cycles of sine wave

  You can Interleave them as before. When the data are performed through the ADC, they are out different sine waves, even if the AO channels are updated at the same speed.

• 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

• Several channels with different frequencies

  Hello

  I use card NI USB-6221.

  The C API using, I need to generate 6 digital output channels, with frequencies of diffrenet and Heavy duty.

  To be more precise, the 2 are totally identical, but I need them to be reversed, and the other 4 are similar to another, but should be shifted in time (I.e. There is a delay between each of the channels).

  I used the 2 channels of CO that the USB-6221 takes charge for the first two signals, and it works very well (the two signals are synchronized and are reversed).

  Now I need an additional 4 channels for the other vague square.

  I saw an articale NOR by JohnP web site with the title:

  Generate multiple channels of digital output with different frequencies and Heavy Duty

  The following example shows how to create and generate a digital with the non-regeneration wave form so that you can change the frequency and the duty cycle on the fly with the M Series DAQ hardware X.  The example uses output digital rather than counters to achieve this, so if you need more output than the available counters, it would be a good option (Note: on the materials of the M series an external sample clock must be provided, this may be caused by one of the counters if you want).

  that seems to be exactly what I need, but the examples are for LabView which I did not.

  Can someone explain how to do this with the C functions?

  Best regards

  Danny.

  Hey Danny,

  The important thing to note is that you can clock of arbitrary digital waveform (up to 1 MHz on the 6221).  The real data acquisition programming is pretty easy once you have the waveform.  My Example LV used LabVIEW Base generating function VIand then converted to a digital waveform to generate the signal from each channel.

  The functions of LV helped tremendously with to achieve the waveforms to be updated on the fly (the basic function generator keeps track of phase for you).

  If you do not need to be updated on the fly, then the construction of the waveform in C should not be too bad.  For example:

  P0.0 [1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0] * 1

  P0.1 [0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 0 0 0 0] * 2

  P0.2 [0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1] * 4

  P0.3 [1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1] * 8

  [9 9 9 9 9 3 3 3 3 3 6 6 6 6 6 12 12 12 12 12]

  The table above U8 would give you 4 output waveform of 50% duty cycle at Fs/20, shifted 90 degrees to eachother.  The lines would be p0.0 by p0.3 (the bit rate of the U8 corresponds to what line goes high).

  Best regards

• Save the file text at different rates

  Hi all

  I'm kinda new to LabView, so perhaps this question is trivial, but gives me a lot of pain.

  I want to permanently save a string given at two different rates; in the example provided these rates are every 500 ms and ms 50, in two different (one for each rate) text files. I tried to use while loops structured for this purpose. When I use one, it works fine, but when I use both at the same time, it seems that Labview limited both paths at the lowest speed, which in this case is obviously 500ms, and eventually get two accurate files with the string saved to 500 ms period.

  How can I make it work?

  Thanks in advance.

  Your loops the two stops after one iteration. Maybe you should keep them until you want to stop the running program. Add a stop appropriate to each condition.

  (Looks like you are using "continuous operation" where the program begins again once the code is complete. Do not! It's just a debugging tool. Use the ordinary execution.)

• Sampling frequency for two different routes for acquisition of data USB-6009

  Hello

  I use a box USB-6009 and incorporating the "daq assistant" to change the sampling frequency.  I'm trying to find a way to set the sampling frequency to two unique values for the two separate channels.  I tried implementing two assistants daq and different for each channel sampling frequency setting, although it does not work.  Is it possible to set the sampling frequency for all channels, and then reduce the rate for another channel - or an alternative?  I would be recognizing any input on this matter, thank you!

  -Anthony

  All tasks on a DAQ card using the sample clock should use the same clock.  Therefore, you cannot have two tasks on the same sample of DAQ card at different rates.

  Alternatives would be:

  1. to combine all channels in a single task and to accept additional data

  2 get an additional DAQ card to use at the same time

• Judgment of multiple while loop running at different rates to stop using the single Boolean stop button

  Hello

  I'm on the block diagram of 4 loops, do different tasks. They are independent of each other, but need to see the unique front panel - some of the wonders of labview!

  Now, I want to have a unique stop button which will in fact be a back button to return to the main screen by stopping all four loops on the block diagram. I used the stop button (switch released) with local variable to stop the three other loops. He stops the vi but it is not a good stop vi to stop properly and the grid on the performance of the front panel. Now all loops run also at different rates, so it is not necessary that all loops are stopped immediately when one of the loop is stopped. Can't really think of a better way. All the ideas!

  Kind regards

  Austin

  Variables local is ok in this case, but you will need to keep the control in switching mode (no lock).

  A better solution would be to have all the loops as a structure of event all listening value stop change. Or have the Stop value change event generate a user defined output event or similar.

  /Y

• Consolidation of entities with different COA

  Hello
  
  I would like to ask if HFM supports the consolidation of entities with different COA. For example, if the child entity has COST that differs from the COA parent, how the consolidation process will look like?
  
  Thank you
  Ahmed

  Hello
  In general, it is not a good practice to have multiple modes of action in a single application of HFM. The most common practice is to have a single certificate for all entities and use FDM to the COST of each entity of the ACO group mapping.

  However, if you follow the multiple COA in a single application path, HFM can be customized to do this. However, this means a lot of custom code in the rules, a high rate of bug, a complexity, a very long time to implement, a populated account dimension and minimum maintainability. To get an idea, over rules of building custom, the code must handle each account separately to proportionalize the amount to another account in the ACO group, which looks like to do the mapping in the consolidation instead of FDM rules.

  Just try to eliminate the need for multiple certificates of authenticity.

  -Kostas

• Compositions of understanding with different pace

  Hey everybody,

  I work with AVCHD video with a rate of 25.

  If she drops my film in a new composition after affects sets all

  up automatically.

  I would now like to what is happening to my avchd clip if I change the frame rate

  of my compostion of 25-24. What excatly is happening on the frame

  missing? AE just get rid of it?

  Does make a difference if I just changed my settings from 25 to 24 model

  or if I drop my comp 25 in a new one with 24.

  She thinks the opposite, if I change my rate of 25 to 50,

  Does this mean that AE double the frames of my files?

  In general, the changes have no impact on the speed of my images?

  I'm looking forward to your reply. Very much appreciated.

  Best,

  Alex

  PS: this indictment for first Pro as well?

  When you create a layer in a composition, and this layer is based on a video footage item, the composition of cheques to each frame of the composition to see (example) the element sequence data. If there is not a single image of the data of the element of film that aligns exactly with the framework of the composition, then the composition of the samples of executives of the images of each side and executes one of several things: it can simply choose one of the two frames, or it can simply mix together, or he can do something much smarter and try to reconstruct the image that would have existed between the two frames. What he does depends on what interpolation setting you use.

  When you use a piece of film that has a rate that is higher than your publication and the two rates are relatively high, you don't need to worry about this at all, because the default settings tend to work perfectly.

  To summarize, the cadence of the right composition changing how often the composition samples data of the image of the film element. It does nothing for the point sequences mmee and does not affect how fast the video of this film playing in a layer.

  To interpret a film as being another frequency, or to comply with an element of film at a frame rate, you use the dialog box interpret footage.

  For more information, see "Frame rate".

• Yosemite: Why 'Shares and Permissions' displays 2 all users with different privileges?

  Some folders and files inside my user folder sharing and permissions like this:

  

  I can remove the user from "search...". "(a user who has been deleted and no longer exists) but I don't know what to do on both"all"users with different permissions. I can't delete the one with custom privileges. Help!

  Solved by Leroy Douglas. See What are these custom privileges?

• Photos with different apple id: s

  Any way to sort photos taken with various apple id: s in photos for mac? I have three different iPhones that has been moved from parents to children. Is there anyway to sort images with different apple id: s? I heard that there is way to sort different (smart folder) with the model of phone, but this is not enough cause phones were used earlier by the parents. And I want to use only a single library of pictures, so the different IDs: s for mac is not the solution. It would be nice to get this functionality.

  You can use smart albums with a combination of constraints: the model of the iPhone and the date rank when the iPhone has been used by a person in particular. If the iPhone has been in use you make in the years 2012 and 2013 creates a smart album that will check for the ipHone and the date range.  Then announces a keyword "Photo by Me" of all the photos in this album. Do the same for the other ranges of iPhones and date and assign the photographer as a key word.

  If you keep marking new imports with a keyword of photographer then you can create smart albums for every photographer.