The performance improvement chart real time

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• Make a graph that is customized by using the motion of the instrument and in real time

  I am very new to LabVIEW and I need to make a graph or a table with the data being the movement of a device and the x data in real time.  I know how to get the position of the instrument information and how to put in real time for the x axis, but I have no idea how to wire those things in a graph, what type of graph to use, or what other screws I need for the y - data.  I have attached the page I'm working on that... It's kind of just a meli melo of things I thought that may be useful, but I obviously need help.  Thanks in advance.

  Have you so far in your VI, it seems you will ask some data on the location of your device on each iteration of the loop.  In this case, you can use a waveform diagram in the while loop to display these points.  Each new point will be added to the table as they come.  You can do this by writing values to the table as you reach them inside the while loop.  This link should also be able to clear up some confusion about the differences between the tables and charts in LabVIEW.

• How do to accumulate data acquired in the table for a real-time XY graph plotting

  I have current and voltage values which I would like to draw the graph XY.

  Problem is that these are 1 d signals.

  1. Please tell me how I can earn these value in table, so I can have my XY trace.

  2. is there another way to plot in time real graphic XY of the acquired values.

  (I use NI 9205 analog module. I can see real-time signals i.e. time vs current and voltage time vs on my front.

  I need voltage vs current values in real time).

  You can help.

  Thank you.

  Try something like this...

  Notes:

  • If you simulate "as soon as possible", you put a period inside the loop.
  • As the table grows forever, you will be eventually run out of memory.
  • Since the x and y of the simulation is at the same frequency, all points will be on the same line.

• display of the work plan in real time for mobile devices?

  I do my design in illustrator before exporting all the assets for use in mobile applications. Is there a way to get the work plan to display on my mobile device in real time? As it is now, I have to save the artboard as an image and put it on my phone to see what it looks like.

  Hi Mike,.

  The answer would be 'no', at the present time. You are already one of the workarounds.

  Thank you

  OM

• All measure the performance improved after defragmentation?

  Hi people,
  
  After a table to reorganize (such as changing the movement of the table, index rebuild).
  You have a certain how much improved the performance of database?
  
  TKS

  mantovam wrote:
  Hi people,

  After a table to reorganize (such as changing the movement of the table, index rebuild).
  You have a certain how much improved the performance of database?

  TKS

  Also read this article by Jonathan Lewis.
  http://jonathanlewis.WordPress.com/2010/07/19/fragmentation-3/

• Is the reference monitor in real time?

  I never asked this before, but is the reference in real-time monitor?

  The behavior I get is...

  frames to update when I rub

  shows the color changes

  freezes when I plate the SEQ

  He always did, but I was wondering what he could play simultaneously with the following. Its video composite value now.

  Unfortunately, you can't direct the program playback and screens of reference at the same time.  It's a design flaw, in my opinion, which greatly limits the usefulness of the reference monitor.  Please tell Adobe you want to correct.

  https://www.Adobe.com/cfusion/mmForm/index.cfm?name=wishform

• Reference to the parallelism - improve update tree times

  Hello Experts!

  I have a big problem, and I do not know how to solve.

  I have a huge tree, nodes rely on 40-50.

  I have an array of object, each object is a node in the tree. I want to update the State of the tree with the objects, but it takes so long.

  I got an idea, please take a look at the image as an attachment.

  Dividing the table obj with pieces more small, all for loop can run in parallel (?) and in the vi run time update contains the procedure to update the tree.

  Each VI update time run works on tree reference and sub-table of parameters. Why this term method of operation is the same, when I share the entire table?

  Can you suggest me any solution to improve the tree update time?

  Thans in advance!

  My problem is solved!

  Postpone the update of the Panel! I like it

• I need to display the CPU load of the controller under Veristand real-time on a copycat.

  But one did not find a canal system (or equivalent) with these data.

  I have a controller with 8 processor cores (RMC8355), so I need to have the CPU 8 charges.

  Does anyone have a solution?

  Thank you

  The custom device available on the addons page System Monitor will allow you to get this information and much more than the tracks in your system definition.

  

• Creating a Clone of VI in the real-time platform

  Hello

  I wanted to create a clone of VI in time real LV on cRIO-9022 controller. I changed the properties to run VI and selected pre allocated incoming running clone.

  But I'm unable to generate the clone like this.

  I read from here, "you can configure LabVIEW to allocate or share a VI clones reentrant clone shared within a structure ofloop delayed or Timed Sequence" .

  My question is how can we create a clone of screws in the RT platform? clones are limited to Timed loops only?

  I use LV 2013, cRIO-9022, chassis NI 9114

  Thank you

  Thibault

  Hello

  I got it, it was similar to what you do on a normal LabVIEW VI. I expect a change in the name of VI in CloneXXXX.vi, but in real time, I think that you do not have this indication.

  As he had no name and when I try to open the instances of these real-time clone live all were directed to the real VI itself, so I thought that it did not work.

  but I think that it how it is in real time.

  I did a test using the simple addition of numbers using clones and it works very well.

  If you do not get the clone of instance names when you open the front door and we cannot highlight the real-time performance clone VI

  I think it's obvious.

  Thank you

  Thibault

• Update of the pixel in real-time data

  Hello

  I look at the options for the implementation of a real-time filter feature in photoshop, and I would like some opinions on implementation strategies.

  Basically, I want to update the contents of a layer (lets call it B) when the user draws another layer (lets call it only A), such that the contents of the layer B is a function of a.

  This task will be possible using the functionality exposed by the Photoshop SDK?

  Cordially Toke

  Theoretically, it could be doable, assuming that the tool used to change events appropriate b triggers (only not all tools, unfortunately) AND your A layer updates can be performed without disrupting the work of user b. What you need to do in this case is to implement a plug-in automation based on the earpiece of the SDK samples that would monitor events. At the event you determine the layer to activate it in your code C++ and if B then update has. The problematic part here would be whether you would be able to change the current layer in a way that is not interrupting the work of user b (for example, you probably wouldn't occur a change b to change the current layer to A, which would cause the focus jump to A and then go back) and it would depend of the type of changes you want to.

  It would in any case, the branch, I would like to take here.

  HTH

  Ivar

• Trying to update channels in real time while controlling the Agilent 34970

  Hi all

  I got Aussie help on these forums and I hope that someone will be able to point me in the right direction with this problem. I'm still fairly new to LabVIEW please bear with me.

  I work with the LabVIEW driver for the Agilent 34970 connected on a GPIB-ENET 100/1000. The device was detected and works very well. The reason why I am writing today, what I'm trying to update the list channels in real-time. Currently I need to stop the whole process in order to modify the list of channels, but due to the nature of the tests we will occur, it is important that I can add more channels I want without interrupting the ongoing trials.

  I searched the forums and tried to change control of chain of channel for "Update of the value while typing" and "limit to the only line." The motivation behind the change of the latter was so that I could change the channel list and use the ENTER key to run. I also tried to create a while loop with shift registers but construction ws so clumsy that it does no more.

  I am sure that the change must take place as soon as the control of the chain, but is not certain since the pint is so he can reset which channels to scan and which appears lower in the VI. I have attached the VI I work with; It is a slightly modified version only Advanced Scan example of the driver.

  Thank you in advance,

  Yusif

  You might have added a registry to shift, but you're not actually compare anything. You compare the value of the control to the value of the data coming from the shift register to see if it has changed. If so, change the scan list.

  If you need to have a delay after you change the scan list, then you must add the delay within the business structure that calls the VI to reconfigure the scan list. You can use the late VI period causes the delay occur after you set up the analysis using the wires of the error to force the order of execution.

  P.S. Your naming scheme for screw means that you probably use a source code control system. If so, you would be well served by taking the time to discover the source control systems and installing a. It is very easy, and he has had several discussions in the LabVIEW forum on recommendations of source code control systems.

• difference between the real time module and module fpga

  Hi experts,

  I was wondering if someone could tell me the difference between the FPGA and the module in real time (in short).

  My understanding is that the FPGA module facilitates code LV that can then be designed for the specific advice of RIO, I have used this a bit in the past.

  The real time module, I'm a little more unsure about, all I know is that it allows the creation of a 'real time' i.e. deterministic environment.

  My request is this: I wish I had several control loops running on two tables of RIO, with the host PC mainly used for recording data and user interface. I see that I have no need of RT on the host (Win XP should be good).

  Do I need the RT module?

  You are right.  In the scenario you describe, you won't need to LabVIEW RT. LabVIEW RT is used to create a deterministic execution on specific targets for intel such as the PXI-8106 and PXI-8108.  You can still use strings and floating point on RT.

• calculation of the SNR/CRADLE to the real-time signal

  Hello everyone,

  I need to calculate SNR or BER of the signal received in real time. I use USRP 2920.

  Hey IrfanRazzaq,

  You may be better to post this question in the USRP forum:

  http://forums.NI.com/T5/USRP-software-radio/BD-p/500

  I also want to point you to these forum posts that deal with this issue:

  http://forums.NI.com/T5/USRP-software-radio/example-VI-for-calculating-ber-of-the-USRP/m-p/3048995

  http://forums.NI.com/T5/USRP-software-radio/USRP-for-bit-error-rate-measurements-using-packet-based-...

  There is also a VI in the modulation called MT toolkit calculate BER that takes a signal and a desired profile and returns the BER

• Get the frequency of a graph in real time of the waveform trace

  Hello

  I want to get the frequency of the graphics path in real time. The data comes from a connected to an Arduino UNO ADXL345. I use LINX to read data.

  I separated given x, y, z in order to plot separately and later to get their respective frequencies as well.

  Here is an excerpt of my VI as well as the front panel.

  

  I used a the Measurment file for each axes entry so I have a copy of the data.

  Before posting, I tried the LabView Spectral tutorial first. But it's different from what I want to happen because you know the exact frequency in this tutorial.

  I have also attached my VI.

  Thank you!

  If all you want is to know the spectral content of a signal in the time domain, there are a number of examples show how to do it. I would start by looking at the functions of the FFT.

  Mike...

• I can load the speed in real time?

  Hi, guys.

  I'm working on my project now. Right now I use PCI 7344, UMI-7764, AC/DC motor sevro, their amplifiers and the camera of the UAB.

  I try to repair the braiding point machine to weave leadership x. usually the Plait point oscillates around a point in x direction.

  At first, I need to get the position of the point using cam USB, I've done braiding. The positions I got the cam of the UAB is in real-time.

  Then, I need your comments the position of the motion control loop. I intend to use the position to calculate the speed that responded to the questionnaire, which is real-time, too.

  Engine going this speed. Thus, it is supposed to get that engine will decrease or increase depending on the weaving point moving.

  I don't know if we can do it. I have yet found the relative position.

  Anyway, thanks in advance. Any idea and the idea is really appreciated.

  Guangli

  Guangli,

  as the camera of feedback is coming from a USB camera and with the during the calculations necessary to analyze the images, the behavior of your system in real-time is probably not very tight. Delays and jitter of the additional movement control operations are probably in the same order of magnitude as the delays and jitter, introduced by processing the image. If it's okay with you, can do the following:

  1. Load a maximum travel speed and acceleration/deceleration of the values for the axis
  2. With "Load Velocity override", you can pass the speed between 0 and 100%. Transitions of value axis a velocity to the adjacent spire to the value of the acceleration that you defined before.
  3. If you need change the direction of travel, you need to use 'Load speed' and 'Motion to start. " This operation is much longer that a speed of loading a substitute value, but in general you should not call this sequence too frequently.

  I hope this helps.

  Jochen Klier

  National Instruments