How to save the data in table 1 d to Excel in continuous
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...
Here is a vi that might give you a few ideas to try:
Tags: NI Software
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
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).
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
go_form ("c\user\babu\FORM A.fmx");
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:
commit_form; -This saves the data only from module B (because A module work in diferent database session).
go_form ("c\user\babu\FORM A.fmx"); -Now you in module A.
commit; -This has no effect, you are now on the module to a.
Run a program that reads data recorders seconds and displays a trace on the screen.
What I want, is that when I press a button, the program will ask for a file name and begins to record data to the file, and continues to do this as long as the button is pressed.
When I press the button again, the program asks the name of the file again, so I can select a new file to write.
I've included a simplified version of my program that works by asking the file name at the beginning.
How can I change the program it starts a new file every time that the key again.
I changed the example that I gave you to LV8.0, but I have never used the option 'Save for the previous version' before, so I don't know if it will work.
I have combined the start and stop of recording in a single button (just change the text to all what you need) and I used the 'value' property to pass the path between cases. The path can be formatted as you have in your version, don't forget to use the string conversion function filepath.
Just in case where it doesn't work on your version of LV I've attached a screenshot of the block diagram.
Hope this helps, let me know if you have more problems with this.
is it possible to save data in an application just with qml?
for example, I want to record some settings that the user has set.
or an array of integers.
or is it still possible to use sqlite?
I could be completely wrong, but QSettings should work for you.
The sample application QSettings is the spaceship one.
QSettings is no longer usable in C++
but this seems to be the only way to do
Any that offered little help on how to save the data in a portrait. As a result of my attachment all my datas saved az a tables!
And also, I'll be glad if you told me that I can add text in front of my data as an outamaticlly to explain?
Any suggestions would be greatly appreciated! Thank you very much!
First convert your string numbers using decimal channel number. Once your numbers have the appearance of a string, you can format the text with them. If finally, you can use concatenate strings to concatenate (add all channels) your number in the string with another text format:
This code would create the following string:
Then, you can save your all channels on a line using the same method as above.
I tried to draw a wave and save the data to excel. Now, I want to control the writing-data-to - spreadsheet.vi to save data when I want which means that the vi records nothing until I have send a command to it. How can I make this happen or do I need any other screws?
Maybe this wat you are trying to do... Let me know if it helps...
(Kudos are always welcome)
Hello, I would like someone to help me with a problem I have in my program.
What makes the program is, for each iteration, take the data in 'table iter' and recorded in "table of output." But in the second iteration instead of storing the results of the first iteration offer me '1' in the first five lines.
How can I solve this problem?
Thank you, Jaime
Please make the change mentioned in the attachments.
Thank you and best regards,
all my data records on the local disk c, how to share the data with the other drive, local drive d.
1. what type of drive is D? Is - this another partition on the same disk?
2 Windows operating system you are using?
You can change the location of the disk to save the data in the d: instead of C: and check if it helps.
a. navigate to the location (username) C:\Users\.
b. right click on the folder that you want to change the location, and then select Properties.
c. click on the location tab and change the location to D: drive.
d. click on apply and Ok.
I have called DEMO table there image stored as a BLOB. now my requirement is to know how to read the data of BLOB and saved in the file system. is there a procedure
to read the blob object and stored in the file system. pls suggest me with an example.
HI - don't know what version you have, but have a read through this:
Hoek link is to import the blobs in the db, it is export, to a file.
When I use write on worksheet to record data, I must determine whether to save data or not before running the program, is there a way I can run the program and then decide whether to save the data, which means I can have a 'save' botton After runing the program, when I shoot, I can record data, otherwise, it is not. Thank you.
I make a program reads the value of the probe via serial port... but I don't know how I can record this data in excel file... I open the example in the labview example, but I don't want to like this... becaue I use a while loop in my program that cause opened "multi" excel file... . How can I solve this problem?
You need to think about what you want to do, not how you want to do. I'll make a few assumptions here - adopt to your notebook loads "real."
I guess you want to take a series of readings from a device (sensor, serial port). I suppose you take multiple readings, perhaps their display on a table or chart, for a certain period of time. Once you have a set of data, you want to save all the data in an Excel file.
If this scenario is correct, there are three distinct phases to this task - implemented the data collection (open the serial port, manage the interactions of the user according to the needs), data collection (and potentially produce tables or graphs) and save the data. Note that only step 2, collect data, involves a repetitive action appropriate for a while loop. Once you have all the data, you can then open an Excel report, use something like Excel table easy to put the Table in the report or chart Excel easy to put a chart in the report and save the report in evidence, save the report.
If you are using a relatively recent version of LabVIEW (2010 or later), the new generation Excel report screws are pretty easy to use.
I am acquiring data from an oscilloscope.
Wen I save the data in a text file to aid wite spreadsheet string, all the displayed voltage values r first, then values of time... in addition to its delimited by tabs
How can I view it like the r of time values in a single column and the voltyage of the r-values in the other column
I don't know what is exactly the format that you found. I think you should try to use the function Array transpose (from the palette of function table) before you pass the array to write to string of spread sheet function or directly loyal to Terminal son transposes on writing worksheet function and see if you get the desired results.
PS. : Share your code would be appreciated.
(Kudos are always welcome, mark it as a solution if it is the only)
Hi all, I am a newbie to LabView. Now, I'm trying to store data (plots) of the Analyzer of spectrum of Agilent E4446A (SA). I was modifying the sample program (called Agilent PSA series ESA acquire Trace) of the driver of VISA. But I got stuck at the end of the program (I have attached the photos). When the SA have the plot of exact spectrum shown in the window "Waveform of the Trace" in the front panel, I don't know how to set up the program so that it stores the plot of the screen in format worksheet automatically. What I'm doing at the moment is manually, right-click in the waveform trace window and select "export". It's too slow to follow a few quick evolution results of SA. I was also trying to change the output of the function "Mark read" in his library of drivers. The production cluster (pink line) consists of the flow of three initial data (double) X, X increment (double) and Trace (table 1). I can not connect this cluster of data to 'Write in a file as' vi more, it's about the only life-saving method, that I worked with... I really want to learn how to automatically save the data in the format spreadsheet out of the plot.
Thanks a lot for your help!
I make a flex Application Adobe AIR with SQLITE database, what I want save the Date in the following format DD/MM/YYYY text but in my TABLE, I gave the data type is DATE.
It store the value as this Sun Dec 2 00:00:00 GMT + 0530 2012 I want to store the value in MM/DD/YYYY. How to do this?
looking for a useful suggession.
See you soon,.
Oops, didn't check my email several days who have not noticed your answer
not to get a Flash Builder in my desktop
But it should be:
private var Totaldays:int;
TotalDays = Math.Floor (Math.abs (date1. valueOf() -date2. valueOf()) / (24 * 60 * 60 * 1000))
Beware of the date1.valueOf () returns the number of milliseconds since midnight January 1, 1970
If you really want Totaldays to become a chain, then:
TotalDays =String (Math.floor (Math.abs (date1. valueOf() -date2. valueOf()) / (24 * 60 * 60 * 1000)))
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