"real" RMS

Hi all
I use SCXI-1000 and module SCXI 1313,1125...
I want to measure "RMS" current, from square signal. I use DAQ Assistant, from which I get out voltage and current! All working, tested with constant DC.
I tried in this way:
But RMS Value is incorrect(I know that, because I measure with TRUE RMS MULTIMETER.....). The signal is square and look's like this:
Any ideas or "hint's".

robinson wrote:
Voltage is from 0-16V, "RMS" give values about 8-12, which is incorrect, it must be about 50-70mA...(don't look at signal picture, it's just "example").
robinson wrote:
From 'statistics' I get 'RMS' output , which I connect into DC-RMS, and soo one, from that I can see value of signal(look at RMS value,DC avarage, RMS avarage...), so why I will need additional indicator, if I see value from that...
You know, we try to be professional and polite on this forum. We really try. Sometimes, though, we read responses like this which simply make our head shake. in disbelief.
You know what the difference is between voltage and current, right? If so, how in the world can you say that a VOLTAGE between 0 and 16V with an RMS value "about" 8-12 (whatever "about" is supposed to mean in engineering terms) should actually be 50-70 mA??? That's simply inane. If you are getting a voltage which is proportial to a current then you obviously have to perform the same proportianal calculation to convert the voltage to a current!
Also, the "RMS" output of the Statistics Express VI IS the RMS value. Why are you trying to calculate the RMS value of an RMS value? We cannot "look at RMS value,DC avarage, RMS avarage". We don't have your VI, and you're not showing the front panel. Look at the picture you posted. Do you see the values of "RMS value,DC avarage, RMS avarage" anywhere on that picture?
EDIT: It seems that Dennis pretty much said the same thing at the time I was posting.

Similar Messages

How to calculate rms voltage, rms current and frequency from real time data?

Hello,
I need to calculate the real time rms voltage, rms current and frequency of the received voltage and current graphs using visa read. Actually am trying to monitor the voltage and current parameters of AC load, in this case, am using a set of 4 light bulbs at the moment. Expected frequency is 50 Hz, and rms voltage close to 240v AC, current about 1A.
Attached is the vi picture of what I have been able to achieve so far, courtesy of labview forums. But I need to finally finish this vi by calculating the Vrms, Irms and frequecy. The front panel shows the voltage (Chart V) and current (Chart I) after scaling. Chart VI represents ADC value 0 ~ 1023 of received data. Aray V & I show the binary bits received up to 10 bits of useful data from ADC. Each sine wave from ADC is sampled at 25 samples for the ADC conversion, and sampling frequency of 1.28kH.
I have tried using the RMS vi, but seems I don't know how to configure it correctly to get desired results. Also when I make changes like switching of one of the bulbs so that their is current change, I need to refresh the SERIAL port first before changes show up on the VI. Any ideas on how to improve on this are highly appreciated.
Otherwise, I would appreciate if somebody helps me MODIFY my VI to read the rms values and frequency from received data. This is the last piece of my project, I do appreciate all the help rendered. Am currently using labview labview 2014, student version!
Gavin.
Attachments:
Test_revised1.vi ‏39 KB
Test_frontpanel.png ‏196 KB
Test_blockdiagram.png ‏187 KB

hello,
note that peak voltage (Vpeak) is (240 * 1.414) = 399 V and peak current about 1.414 if intended rms current is 1A.
Gavin.

How to measure and plot RMS value of real time data?

hi
i need to measure and plot real time RMS value of EMG voltage. I made a VI. But I dont know why it didn't work. Can anyone please help me out? My VI is attached in 2013 and 2011 both version. One sample data is also attached. Thanks at advance.
Solved!
Go to Solution.
Attachments:
RMS.vi ‏47 KB
RMS_2011.vi ‏41 KB
Sample Data.docx ‏20 KB

You seem to select EMG voltage vs Angle(Z-axis). Is that really what you want? More resasonable would seem e.g. EMG voltage vs. time.
If you want to process the 3D (xyz data), you probably need to add some more math). Why are you taking the absolute value? RMS does not care about the sign anyway, right?
They you are trying an XY graph with a single point, because your Y value is only a single number. You need an equal number of points for Y.
Here's a quick modification that graph EMG(mV) vs. time(ms) and takes the RMS of the EMG data. See if this gives you some ideas.
Please provide more information what you want to do with the angles.
LabVIEW Champion . Do more with less code and in less time .
Attachments:
RMS_MOD.vi ‏18 KB

ACE- From one real server to another VIP

Hi,
I have a problem with ACE;
We have multiple serverfarms configured in the ACE module based on the application and different VIPs related to it. We are running the ACE in bridging mode. Now the requirement is from one serverfarm real server wants communicate to the VIP of the second serverfarm...Is this possible..???? Wil some NATing help in this situation. Below is the configuration.
======================
/* Style Definitions */
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-priority:99;
mso-style-qformat:yes;
mso-style-parent:"";
mso-padding-alt:0in 5.4pt 0in 5.4pt;
mso-para-margin:0in;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-ascii-font-family:Calibri;
mso-ascii-theme-font:minor-latin;
mso-fareast-font-family:"Times New Roman";
mso-fareast-theme-font:minor-fareast;
mso-hansi-font-family:Calibri;
mso-hansi-theme-font:minor-latin;
mso-bidi-font-family:"Times New Roman";
mso-bidi-theme-font:minor-bidi;}
access-list LAN_Traffic remark For all IP Traffic
access-list LAN_Traffic line 10 extended permit ip any any
access-list LAN_Traffic line 20 extended permit icmp any any
probe http PORTAL_HTTP
passdetect interval 20
passdetect count 2
request method get url http://portal
expect status 0 600
probe http RMS_HTTP
request method get url /_wmcs
expect status 0 600
rserver host PORTAL1
ip address 172.22.11.241
inservice
rserver host PORTAL2
ip address 172.22.11.243
rserver host QGLRSPW1
inservice
rserver host RMS01
ip address 172.22.10.12
inservice
rserver host RMS02
ip address 172.22.10.8
inservice
serverfarm host PORTAL
failaction purge
probe PORTAL_HTTP
rserver PORTAL1
    inservice
rserver PORTAL2
    inservice
serverfarm host RMS
failaction purge
probe RMS_HTTP
rserver RMS01
    inservice
rserver RMS02
    inservice
class-map match-any PORTAL
2 match virtual-address 172.22.10.166 tcp any
class-map match-any RMS
2 match virtual-address 172.22.10.52 tcp eq www
3 match virtual-address 172.22.10.52 tcp eq https
policy-map type loadbalance first-match RMS-POLICY
class class-default
    serverfarm RMS
policy-map type loadbalance first-match PORTAL-POLICY
class class-default
    serverfarm PORTAL
policy-map multi-match SFARM-LB-POLICY
class RMS
    loadbalance vip inservice
    loadbalance policy RMS-POLICY
    loadbalance vip icmp-reply active
class PORTAL
    loadbalance vip inservice
    loadbalance policy PORTAL-POLICY
    loadbalance vip icmp-reply active
interface vlan 800
description ACE Client Interface
bridge-group 1
mac-sticky enable
service-policy input SFARM-LB-POLICY
no shutdown
interface vlan 898
description ACE Server Interface
bridge-group 1
mac-sticky enable
no shutdown
interface bvi 1
ip address 172.22.11.151 255.255.252.0
alias 172.22.11.153 255.255.252.0
peer ip address 172.22.11.152 255.255.252.0
description Bridge Group for 800 and 898 Interfaces
no shutdown
ip route 0.0.0.0 0.0.0.0 172.22.8.17
===================================
Pleae help..Thanks in advance

Hello!
Well yes it would work. BUT...you have to change your config a bit. First you need to apply your accesslist to both interfaces, or the ACE will reject it, because it is acting as a firewall by default. And second you have to apply the policymap to both interfaces as well or you put the policymap globally on the ACE.

Sndpeek. real-time audio visualization

Homepage:
http://soundlab.cs.princeton.edu/software/sndpeek/
Screens:
http://soundlab.cs.princeton.edu/images/sndpeek.jpg
http://soundlab.cs.princeton.edu/images/sndpeek6.jpg
http://soundlab.cs.princeton.edu/images/sndpeek2.jpg
http://soundlab.cs.princeton.edu/images/sndpeek3.jpg
sndpeek is just what it sounds (and looks) like:
* real-time 3D animated display/playback
* can use mic-input or wav/aiff/snd/raw/mat file (with playback)
* time-domain waveform
* FFT magnitude spectrum
* 3D waterfall plot
* lissajous! (interchannel correlation)
* rotatable and scalable display
* freeze frame! (for didactic purposes)
* real-time spectral feature extraction (centroid, rms, flux, rolloff)
* available on MacOS X, Linux, and Windows under GPL
* part of the sndtools distribution.
i have the intention to make the PKGBUILD, but it has no ./configure and its default is to install on /usr/local/
# Contributor: Your Name <[email protected]>
pkgname=sndpeek
pkgver=1.3
pkgrel=1
pkgdesc="real-time audio visualization "
url="http://soundlab.cs.princeton.edu/software/sndpeek/"
arch=('i686' 'x86_64')
license=('GPL')
depends=(libsndfile)
provides=(sndpeek)
source=(http://soundlab.cs.princeton.edu/software/sndpeek/files/$pkgname-$pkgver.tgz)
md5sums=('0ad03fa135bf819fb5971fde015526b4')
build() {
cd $srcdir/$pkgname-$pkgver
./configure --prefix=/usr
make || return 1
make DESTDIR=$pkgdir install || return 1

well changed the PKGBUILD a little... but still got errors...
# Contributor: Leandro Chescotta <[email protected]>
pkgname=sndpeek
pkgver=1.3
pkgrel=1
pkgdesc="real-time audio visualization"
arch=('i686' 'x86_64')
url="http://soundlab.cs.princeton.edu/software/sndpeek/"
license=('GPL')
depends=('libsndfile')
source=(http://soundlab.cs.princeton.edu/software/sndpeek/files/$pkgname-$pkgver.tgz)
md5sums=('0ad03fa135bf819fb5971fde015526b4')
build() {
cd $srcdir/$pkgname-$pkgver/src/sndpeek
./configure --prefix=/usr
make linux-alsa || return 1
make DESTDIR=$pkgdir install || return 1
output:
[aleyscha@aleyscha 51 sndpeek 22:15]$ makepkg -f
==> Making package: sndpeek 1.3-1 i686 (Fri May 15 22:15:45 ART 2009)
==> Checking Runtime Dependencies...
==> Checking Buildtime Dependencies...
==> Retrieving Sources...
-> Found sndpeek-1.3.tgz in build dir
==> Validating source files with md5sums...
sndpeek-1.3.tgz ... Passed
==> Extracting Sources...
-> bsdtar -x -f sndpeek-1.3.tgz
==> Removing existing pkg/ directory...
==> Entering fakeroot environment...
==> Starting build()...
PKGBUILD: line 16: ./configure: No such file or directory
make -f makefile.alsa
make[1]: Entering directory `/home/aleyscha/bin/arch_packages/sndpeek/src/sndpeek-1.3/src/sndpeek'
gcc -D__LINUX_ALSA__ -D__LITTLE_ENDIAN__ -I../marsyas/ -O3 -c chuck_fft.c
gcc -D__LINUX_ALSA__ -D__LITTLE_ENDIAN__ -I../marsyas/ -O3 -c RtAudio.cpp
RtAudio.cpp: In member function 'void RtApi::openStream(int, int, int, int, RtAudioFormat, int, int*, int)':
RtAudio.cpp:234: error: 'sprintf' was not declared in this scope
RtAudio.cpp:239: error: 'sprintf' was not declared in this scope
RtAudio.cpp:244: error: 'sprintf' was not declared in this scope
RtAudio.cpp:250: error: 'sprintf' was not declared in this scope
RtAudio.cpp:257: error: 'sprintf' was not declared in this scope
RtAudio.cpp:339: error: 'sprintf' was not declared in this scope
RtAudio.cpp:341: error: 'sprintf' was not declared in this scope
RtAudio.cpp: In member function 'RtAudioDeviceInfo RtApi::getDeviceInfo(int)':
RtAudio.cpp:355: error: 'sprintf' was not declared in this scope
make[1]: *** [RtAudio.o] Error 1
make[1]: Leaving directory `/home/aleyscha/bin/arch_packages/sndpeek/src/sndpeek-1.3/src/sndpeek'
make: [linux-alsa] Error 2 (ignored)
cp /usr/local/bin/; chmod 755 /usr/local/bin/
cp: missing destination file operand after `/usr/local/bin/'
Try `cp --help' for more information.
==> Tidying install...
-> Compressing man pages...
-> Stripping debugging symbols from binaries and libraries...
==> Creating package...
-> Generating .PKGINFO file...
-> Compressing package...
==> Leaving fakeroot environment.
==> Finished making: sndpeek 1.3-1 i686 (Fri May 15 22:15:50 ART 2009)
Press any key to continue...
[aleyscha@aleyscha 52 sndpeek 22:15]$

Persistence of data in J2ME mobile device using RMS

Hi. Just want to ensure that RMS can let us store some values in the mobile device. I'm using emulator to try this out. Everytime i close the emulator, the data stored in the RecordStore's gone. How about in real mobile device?
For some reasons, my jad and jar can't be installed in my Nokia 6210. It keeps giving me "Invalid Jar file" error.
So, my main question is whether RMS really stores the value in the mobile device and can be retrieved everytime that MIDlet app's run again.
The other question is why is it that my jar can't be installed in my Nokia 6210? I just built it with NetBean with J2ME and it could be run on the emulator perfectly.
Thanks a lot.

Hi. For the installation to my phone, i have solved it by changing my app's MIDP version 2.1 to 2.0.
For the persistence of data part, i changed the Storage->"Storage Root Directory" to "\save" in Preferences of SJWTK and re-run my app on the emulator and my phone. However, it seems that the record store's data is not persisted. So, i assume it has something to do with my code. My code is as below. Can anyone give me some clues on what i have done wrong? Thanks.
public TheConstructor(MIDlet midlet, Form form, int partnerId){
     try
      // The second parameter indicates that the record store
      // should be created if it does not exist
        rs = RecordStore.openRecordStore(REC_STORE_NAME, true );
        if (rs.getNumRecords() == 0) {
            RecordIdParam = getAdsParam();
            if (clientIdParam.length > 0) {
                clientId = RecordIdParam;
                writeRecord(RecordIdParam);
                readRecords();
                closeRecStore(); // Close record sto
        else {
            readRecords();
            closeRecStore(); // Close
     catch (Exception e)
      db(e.toString());
private void db(String str)
    System.err.println("Msg: " + str);
public void closeRecStore()
    try
      rs.closeRecordStore();
    catch (Exception e)
      db(e.toString());
   public void writeRecord(String str)
    byte[] rec = str.getBytes();
    try
      rs.addRecord(rec, 0, rec.length);
    catch (Exception e)
      db(e.toString());
public void readRecords()
    try
      // Intentionally make this too small to test code below
      byte[] recData = new byte[5];
      int len;
      System.out.println("num of records is " + rs.getNumRecords());
      for (int i = 1; i <= rs.getNumRecords(); i++)
        if (rs.getRecordSize(i) > recData.length)
          recData = new byte[rs.getRecordSize(i)];
        len = rs.getRecord(i, recData, 0);
        RecordIdParam = recData;
    catch (Exception e)
      db(e.toString());
}

Frequency Response Function & FFT & Inverse FFT (problem of unit Volts-RMS)

Hello everyone,
I am currently working on a VI in order to compare two analog signals : the first one corresponds to the output signal (my reference) which is sent by my data acquisition card to a shaker and the second one corresponds to the input signal recorded by an accelerometer fixed on the same shaker. The final goal of the VI is to correct the analog output signal by using the analog input recorded signal in order to have the vibrations on the shaker which corresponds to what we really want.
To summary, I have a problem of unit with the Volts-RMS...
So this is my method for the VI :
First, I have to calculate the Frequency Response Function between the two analog signals (output and input). For it, I use the " Frequency Response Function (Real-Im).vi " which returns the complex values of the FRF in Volts-RMS (but I don't want to use this unit).
Then, I want to calculate the FFT of the analog output signal (my reference). There are two different blocs which can be used : " FFT Spectrum (Real-Im).vi " and " FFT.vi ".
The " FFT Spectrum (Real-Im).vi " returns the FFT complex values of the signal in Volts-RMS and the " FFT.vi " returns the FFT complex values in Volts (or say me if I am wrong, thank you). I really would like to use the second one because of the unit.
Then, I divide the FFT just calculated with the Frequency Response Function calculated just before.
For the end, I calculate the inverse FFT of that with the " Inverse FFT.vi " which use the complex values with the same unit than for the " FFT.vi ".
I don't want to use the Volts-RMS unit because I absolutly want to use the blocs " FFT.vi " and " Inverse FFT.vi ".
The problem is that I don't find a bloc which use the same unit for the Frequency Response Function. The " Frequency Response Function (Real-Im).vi " returns only the complex values in Volts-RMS unit. Maybe it is possible to convert it correctly? Or maybe there is an other bloc which can be used in order to calculate the Frequency Response Function with the same init than for the FFT and Inverse FFT ? Because I can't mix everything for the moment...
Thank you for your help,
Best regards,
Sebastien

Hello Preston,
No, I have not use the Sound and Vibration toolkit. I have only used the signal processing toolkit with the two toolboxes " Waveform measurement " and " Transforms ".
But I think that what I have done for the moment in my VI is correct (I have finished the complete VI). But I am not sure of the units (Volts, Volts-RMS...) and I would like to understand.
I have tried with the Sound and Vibration toolkit for the frequency response function (because you say me that it deals with all the unit conversion) and I can obtain the same results than with the " Frequency Response Function.vi " of the toolbox " Waveform measurement ".
But I would like to understand the units (see my previous post please). For example, for the FFT (the result is a complex), why sometimes it is in Volts, sometimes it is in Volts-RMS ? Is it possible to convert it ? How ?
If you want, I can attach on the forum my VI and that will maybe help you to explain me. Maybe it will help other people interested.
And if someone else can give me other precisions or advices about it, do not hesitate.
Thank you for your help,
Sebastien

Save real-time data

Hello!
I'm at the begin with LabView. I'd like to verify my signal with an
oscilloscope. After this, when i active a light, the power of this
signal must be save. I have found the oscilloscope VI. I'm tring to
modify it in order to save, when it's necessary, this power. How can i
get the power from a waveform signal and save it continuosly (i.e. in
"real-time mode") in a file?
thank you for the help and sorry for my english...
Andrea

Hello Andrea:
The simplest way to save Oscilloscope data is with the Wave File tools. The oscilloscope data will be in the form of a 1D array. I assume you know what the impedance of the load is that you're measuring the power at. If you do, the power is simply E^2/R. For RMS power, be sure to divide E by 2.82. A more direct way, if you also have a CURRENT sample available is to multiply E*I. I've attached a very simple oscilloscope/data save.vi
Hope this helps. Lots of luck!
Chutla
Eric P. Nichols
P.O. Box 56235
North Pole, AK 99705
Attachments:
Simple_O-scope.vi ‏19 KB

AD RMS Philosophy.

Hi everyone, how do people work with RMS in the real world?
I’m going to make the presumption that in a company you can’t guarantee people not to steal documents. You can only make it more difficult for people to steal documents. When I say steal I mean that a person that has permission to a document,
simply copies-mails, drop box, etc, this documents to someone outside the company without authorization to read this document.
Assuming this let’s get to the point.
I have a client who has thousands of documents that are stored of lots of files shares. Inside these file shares there are many folders and subfolders and many of these subfolders have inheritance disabled.
The client wants to protect every existing document and new documents, so that if the documents leave the company, these will be RMS protected.
One simple way to do this is with File Server Resource Manager and File Management Tasks. With these tools you could apply a RMS policy template to the existing files and new files under a certain folder. Not sure of the performance impact
on the file servers for thousands of files. The policy template would have the read, edit,save permisions plus the NTFS permissions (the combination of most restrictive would win). Inside the company the users would work as usual. If someone manages to bypass
company’s protection and steal a document, it would be useless because it has RMS and the RMS server is not published to the internet.
Would this be a correct approach?
Any suggestions greatly appreciated.
Regards,
Ivan Mckenzie

Hi Ivan,
I am not sure about the term "steal documents".
RMS is first of all a way to protect documents regardless if they are in motion or stored on a disk, regardless if the data is in a email , or on a thumb drive. The protection always "travels" with. So that helps honest people to stay honest and a great
way to bring security policies to life. Where it does not help if someone makes a screenshot with a smartphone etc.
You might think again about the whole in the company and remote thing, because you if users send out emails the data is outside of the companies network. One other thing with Exchange and Outlook RMS has also a pre-licensing, what allows users to read emails
they have just received before they left the office on the road. So you would have to disable all this (I call it a convenience feature).
Regards,
Lutz

RMS installation error: JDBC-thin client oracle/jdbc/driver/T2CConnection.getLibraryVersionNumber()

Trying to Install RMS application 13.2.2 and I get past the pre-installation checks and when I get to the Data Source details and enter the data source details with the check box checked to validate the schema/Test Data Source I get the following error:
Error Connecting to database URL jdbc:oracle:oci:@rmsdbtst as user rms13 java.lang.Exception:UnsatisfiedLinkError encountered when using the Oracle driver. Please check that the library path is set up properly or switch to the JDBC thin client oracle/jdbc/driver/T2CConnection.getLibraryVersioNumber()
Checks performed:
RMS Application code location and directory contents:
[oracle@test-rms-app application]$ pwd
/binary_files/STAGING_DIR/rms/application
[oracle@test-rms-app application]$ ls -ltr
total 144
-rw-r--r-- 1 oracle oinstall   272 Dec 7 2010 version.properties
-rw-r--r-- 1 oracle oinstall   405 Jan 16 2011 expected-object-counts.properties
-rw-r--r-- 1 oracle oinstall   892 May 13 2011 ant.install.properties.sample
-rw-r--r-- 1 oracle oinstall 64004 Jun 6 2011 build.xml
drwxr-xr-x 9 oracle oinstall 4096 Jun 16 2011 rms13
drwxr-xr-x 3 oracle oinstall 4096 Jun 16 2011 installer-resources
drwxr-xr-x 3 oracle oinstall 4096 Jun 16 2011 antinstall
drwxr-xr-x 2 oracle oinstall 4096 Jun 16 2011 ant-ext
drwxr-xr-x 5 oracle oinstall 4096 Jun 16 2011 ant
-rw-r--r-- 1 oracle oinstall 11324 Dec 18 09:18 antinstall-config.xml.ORIG
-rwxr-xr-x 1 oracle oinstall 4249 Dec 18 10:01 install.sh
drwxr-xr-x 4 oracle oinstall 4096 Dec 18 10:06 common
-rw-r--r-- 1 oracle oinstall 16244 Dec 19 10:37 antinstall-config.xml
-rw-r--r-- 1 oracle oinstall   689 Dec 19 10:37 ant.install.log
[oracle@test-rms-app application]$
Application installation:
[oracle@test-rms-app application]$ ./install.sh
THIS IS the driver directory
Verified $ORACLE_SID.
Verified SQL*Plus exists.
Verified write permissions.
Verified formsweb.cfg read permissions.
Verified Registry.dat read permissions.
Verified Java version 1.4.2.x or greater. Java version - 1.6.0
Verified Tk2Motif.rgb settings.
Verified frmcmp_batch.sh status.
WARNING: Oracle Enterprise Linux not detected. Some components may not install properly.
Verified $DISPLAY - 172.16.129.82:0.0.
This installer will ask for your "My Oracle Support" credentials.
Preparing installer. This may take a few moments.
Your internet connection type is: NONE
Integrating My Oracle Support into the product installer workflow...
     [move] Moving 1 file to /binary_files/STAGING_DIR/rms/application
Installer preparation complete.
MW_HOME=/u01/app/oracle/Middleware/NewMiddleware1034
ORACLE_HOME=/u01/app/oracle/Middleware/NewMiddleware1034/as_1
ORACLE_INSTANCE=/u01/app/oracle/Middleware/NewMiddleware1034/asinst_1
DOMAIN_HOME=/u01/app/oracle/Middleware/NewMiddleware1034/user_projects/domains/rmsClassDomain
WLS_INSTANCE=WLS_FORMS
ORACLE_SID=rmsdbtst
JAVA_HOME=/u01/app/oracle/jrockit-jdk1.6.0_45-R28.2.7-4.1.0
Launching installer...
To make sure I have connectivity from the app server to the database (on a database server) here are the steps followed:
[oracle@test-rms-app application]$ tnsping rmsdbtst
TNS Ping Utility for Linux: Version 11.1.0.7.0 - Production on 19-DEC-2013 10:41:40
Copyright (c) 1997, 2008, Oracle. All rights reserved.
Used parameter files:
Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = test-rms-db.vonmaur.vmc)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SID = rmsdbtst)))
OK (0 msec)
[oracle@test-rms-app application]$
[oracle@test-rms-app application]$ sqlplus rms13@rmsdbtst
SQL*Plus: Release 11.1.0.7.0 - Production on Thu Dec 19 10:46:18 2013
Copyright (c) 1982, 2008, Oracle. All rights reserved.
Enter password:
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@test-rms-app application]$
[oracle@test-rms-app application]$ ping test-rms-db
PING test-rms-db.vonmaur.vmc (192.168.1.140) 56(84) bytes of data.
64 bytes from test-rms-db.vonmaur.vmc (192.168.1.140): icmp_seq=1 ttl=64 time=0.599 ms
64 bytes from test-rms-db.vonmaur.vmc (192.168.1.140): icmp_seq=2 ttl=64 time=0.168 ms
64 bytes from test-rms-db.vonmaur.vmc (192.168.1.140): icmp_seq=3 ttl=64 time=0.132 ms
64 bytes from test-rms-db.vonmaur.vmc (192.168.1.140): icmp_seq=4 ttl=64 time=0.158 ms
64 bytes from test-rms-db.vonmaur.vmc (192.168.1.140): icmp_seq=5 ttl=64 time=0.135 ms
--- test-rms-db.vonmaur.vmc ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4001ms
rtt min/avg/max/mdev = 0.132/0.238/0.599/0.181 ms
[oracle@test-rms-app application]$
[oracle@test-rms-app application]$ uname -a
Linux test-rms-app.vonmaur.vmc 2.6.18-128.el5 #1 SMP Wed Jan 21 08:45:05 EST 2009 x86_64 x86_64 x86_64 GNU/Linux
[oracle@test-rms-app application]$
[oracle@test-rms-app application]$ cat /etc/*-release
Enterprise Linux Enterprise Linux Server release 5.3 (Carthage)
Red Hat Enterprise Linux Server release 5.3 (Tikanga)
[oracle@test-rms-app application]$
The database is created and all the batch file scripts have been successfully deployed. Now working on the application server. The Weblogic server is installed and 11g forms and reports are installed successfully.
Any help would be helpful.
Thanks,
Ram.

Please check MOS Notes:
FAQ: RWMS 13.2 Installation and Configuration (Doc ID 1307639.1)

RMS performance testing using HP Loadrunner

Hi,
We are currently planning on how to do our performance testing of Oracle Retail. We are planning to use HP Loadrunner and use different virtual users for Java, GUI, webservices and database requests. Have anyone here done performance testing in RMS using HP Loadrunner and what kind of setup did you use?
Any tips would be greatly appreciated.
Best regards,
Gustav

Hi Gustav
How is your performance testing of Oracle Retail ? Did you get good results ?
I need to start a RMS/RPM performance testing project and I would like to know how to implement an appropriated structure . Any informations about servers , protocols , tools used to simulate a real production environment would be very appreciated.
Thanks & Regards,
Roberto

Exception throw by RMS

Hi all,
I was programing j2me by using: NetBean + Sun wireless Toolkit. When running on emularor, my app perfomce very good. But when I deploy on real device(e.g Samsung B7330 using window mobile) I got so much errors.
So I google and find out: J2ME SDK 3.0 intergrating debug on real device. I setup enviroments and run some sample application, they run smooth. But when I run my app, I got an exception when I try to open RMS
javax.microedition.rms.RecordStoreException: error opening record store fileHere my code:
public void saveProfile() {
        byte[] data = toByteArray();
        try {
            rs = RecordStore.openRecordStore("kunkunProfile", true);
            for (RecordEnumeration e = rs.enumerateRecords(null, null, false); e.hasNextElement();) {
                int id = e.nextRecordId();
                rs.deleteRecord(id);
            rs.addRecord(data, 0, data.length);
            rs.closeRecordStore();
        } catch (Exception ex) {
            System.out.println("Exception in OpenRecordStore..." + ex.getMessage());
            try {
                rs.addRecord(data, 0, data.length);
                rs.closeRecordStore();
            } catch (Exception e) {
            ex.printStackTrace();
    }Can anyone help me?
Sorry for my english, I not good English.

Note: This thread was originally posted in the [Java Programming|http://forums.sun.com/forum.jspa?forumID=31] forum, but moved to this forum for closer topic alignment.

How to use DAQ to control Mindstorms NXT in real time?

I have a project in which I must use a a biosignal to control a Lego robot in real time. My group is using a DAQ to read an EMG signal into the computer. We are trying to use the RMS of this signal to control the power of the Servo motors that drive the robot. However, the DAQ assistant can not be loaded into the NXT (the error message says something about password protection).
Is there any way to read the RMS from another vi and feed it into the vi that is loaded into the NXT?
In general terms, what I would like to do is use the root mean square of a biosignal read by a DAQ to control the power of the Servo motors, in real time.
Any help would be greatly appreciated.
Attachments:
Master File.vi ‏65 KB

You won't be able to run DAQmx VIs on the NXT. The error message is misleading -- the problem is that the DAQ VIs weren't written to run in the NXT's virtual machine.
Instead, you should create two separate VIs. The first VI will run completely on the PC, will acquire the EMG signal, and then pass messages to the NXT over Bluetooth indicating how much power the motors should get.
The second VI will run completely on the NXT, will read messages from one of the Bluetooth mailboxes, and then feed that power value into a motor control VI.
If Bluetooth is not an option for you, you could use just one VI running on the PC, and use the NXT direct command VIs to set motor power over USB. (The drawback is that your NXT is now tethered to the computer.)
James Blair
NI R&D

FFT RMS or Peak?

Hi,
I've got a sine wave signal that oscillates about the zero axis in the negitave and positive. It is measuring wave height about the static water level in an water wave tank. I am calculating the FFT but the amplitude is lower than the wave height in the time domain. Does this mean that I'm calculating it wrong? I don't know wheather I should be using the FFT Peak or RMS? I assumed that the FFT amplitude should give me the same amplitude as the time domain.
Any advice would be greatly appreciated.
Thank you,
Donners
Solved!
Go to Solution.

Donners,
It can get complicated but I suspect that what you are seeing is a result of the frequency of the waves not matching exactly the frequency bins of the FFT. For example suppose that df = 1 Hz. Then each element of the FFT array represents the energy in a "bin" one hertz wide centered on integer frequencies. For a wave with most of its energy at 7.3 Hz the FFT will likely have non-zero values for both the 7 and 8 Hz bins. In real systems with noise and slight frequency variations it is not uncomon for the data to be spread over 10 or 20 bins. To get the fundamental amplitude of the signal you would need to combine the energy in all those bins. Since the FFT produces a complex output, the phase component also needs to be considered. Non-sinusoidal waveshapes mean that some of the energy is in harmonics. A narrow square pulse can have a quite large amplitude yet still have no large spectral components.
The short answer is that generally there is no easy way to get precise correlation between the peak amplitude in the time domain and the amplitude of the spectral components in the freqeuency domain.
Lynn

RMS help

Hi forumers,
i am a newbie to j2me stuffs. I would like to develop an application (for nokia emulators) to backup the emulator sms and address book. I have downloaded the wireless tookit. But the emulator don't seems to emulate like a real phone i can save sms and add contacts.
Secondly, i am thinking "how" can i retrieve the sms and contacts in the RMS of the emulator.
Thanks for reading ; )

Hi,
Not all phones supports access to PhoneBook and SMS. If ur device manufacturer supports access to PhoneBook only then u will be access the data. By default SMS and PhoneBook data are not stored in RMS
Regards,
Prabhu.

"real" RMS

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