Implementation of state space model with constant disturbance in mathscript and simulation

I am new to LabVIEW and now I am doing a project realizing heater control in 8 rooms.
I have realized the state space model in the form x(k+1)=x(k)+u(k) using mathscript (using c_to_d) and feed it into control and simulation loop for simulation.
My problem is, in my project, I have to consider the disturbance from the other rooms. So the statespace model changed to be x(k+1)=x(k)+u(k)+E*d, where E is the matrix concerning the disturbance and d is the vector of disturbance. How could I implement the disturbance and discretize the new model in mathscript and which function to choose for the simulation. Discrete state space stochastic model?
Appreciate your kind help.

Hello, state space models in LabVIEW most of the time are being implemented by utilizing mathscript syntax
in addition with some functions of the LabVIEW Control Design and Simulation Module.
There´s a couple of nice tutorials for control design with these tools which I´d like to point you to as a first step.
http://www.ni.com/white-paper/6368/en/
http://www.ni.com/white-paper/6368/en/
http://www.ni.com/white-paper/6435/en/
http://home.hit.no/~hansha/documents/lab/Lab%20Work/MathScript/MathScript%20Lab%20-%20Part%20II.pdf
regards
Marco Brauner AES NIG

Similar Messages

Plot a state-space model

Hi!
I'm currently doing a project and I'm stuck and am in need for some help.
I've done a state-space model that I'm using for this project. I've used Matlab (with and without simulink) to simulate this model and to plot its behaviour. But when I want to do this in LabVIEW, i get stuck.
I dont want to use Mathscript 'cause then it would be using Matlab.
Does anybody have some ideas of how I can simulate and plot my state-space model from the matrix parameters that i have?
Look at the attachment, I want to plot x.
Solved!
Go to Solution.
Attachments:
State-Space Model.png ‏11 KB

We have so many different ways to do this. Try to look at the following shipping examples:
C:\Program Files (x86)\National Instruments\LabVIEW 2011\examples\Control and Simulation\Control Design\Model Construction\CDEx Creating SS Model from String Matrix.vi
C:\Program Files (x86)\National Instruments\LabVIEW 2011\examples\Control and Simulation\Control Design\Model Construction\CDEx Rendering State-Space Equations.vi
C:\Program Files (x86)\National Instruments\LabVIEW 2011\examples\Control and Simulation\Control Design\Time Analysis\CDEx Time Domain Analysis.vi
C:\Program Files (x86)\National Instruments\LabVIEW 2011\examples\Control and Simulation\Simulation\Continuous Linear\SimEx state space.vi
They show how you can use the product to create a State-Space (SS) model, show the rendered model on the front panel, do a linear simulation of a model and implement the state-space model in the Control and Simulation Loop, respectively.
Notice also that we have an extensive amount of examples available for you. Hope this helps...
Barp - Control and Simulation Group - LabVIEW R&D - National Instruments

I have a state space model of a complex system. can anyone help me for implementing MPC and e-MPC control for the same?????

Hi everyone. I am new to the forums, so let me be as mprecise as possible. i know the basic functionalities of Labview with MPC block etc. However, i dont know how to go ahead with implementing MPC control for a system whose state space model i possess. can anyone help me out?? the problem is that i dont even know the approach or the starting point..

This happens if you remove a program manually, but still have the registry keys to load files from this program.<br />
You can use the MSConfig program or the Autoruns utility to see which software and services are getting started.
*http://technet.microsoft.com/en-us/sysinternals/bb963902.aspx
You can use registry editor and do a search (Ctrl+D) for imesh to see if you can locate the registry key(s) that launches this program on a reboot.
Try to ask advice at a Windows oriented forum if you can't fix this.
* http://www.bleepingcomputer.com/forums/ - BleepingComputer.com - Computer Help Forums
* http://windowssecrets.com/forums/ Windows Secrets Lounge

My iPad is an older model with version 5.1.1 and it will not install a new version. Is there anything I can do. Some apps require a new version?

MY iPadnurses version 5.1.1 and I cannot install a new version. What can I do besides buying a new I pad?

Nothing

Vector Space Model implementation

Hi,
Does anybody know where I can find a java implementation of "vector space model"? Or simply a java program to extract keywords from an HTML page?
Actually I don't know if this is the write forum to pose this question!
Edited by: Marziye on May 28, 2008 10:55 PM

You can take a look at the Apache Lucene project. It should be possible to extract keywords from documents with it. Anyway, it is not that hard to implement the vector space model yourself!

Discrete state-space representation in FPGA

Hello all,
My aim is to simulate a discrete state-space model is the cRIO FPGA (in order to use an observer).
I am currently trying to simulate it on my computer without using the discrete state-space VI from the Control Design and Simulation toolbox (because there is not state-space model VI for the FPGA). However my discrete state-space model representation does not work.
There is below the continuous state-space model:
Then I obtained the discretized model (using the zero-order-hold and t=0.01s):
Below is the discretized state-space model I designed (in order to design a similar model in the FPGA):
Here is the discrete state-space VI I'm using to compare the results:
The graph plots the state X1, which is infinitely increasing. However it should look like a first order, as you can see:
I understand why the state X1 is increasing like this, I know I'm missing something (integration saturation ?).
Thanks in advance
Regards!
PS: Does somebody know if implenting other controller than the PID is doable in the cRIO FPGA? I also asking myself about matrix inversion if I want to use the Kalman gain in my observer.
PS2: I apologize for my disorganized/unclear Labview files, I'm beginning with it.
Solved!
Go to Solution.
Attachments:
SS Discret Simulation.vi ‏544 KB
SS Discret Model.vi ‏21 KB

Hi,
I think the problem might be caused by rounding errors in your A and B matrices. Have you tried getting it to display the values with greater precision?
Matlab calculates those values as: A = [0.995, 0.009925; 0 0.99], B = [2.488e-5; 0.004975]
Regards,
Ian

Control and design applying ramp input and plotting polar coordinates state space

Hi
I am trying to do a fairly simple state space task with Control Design and Simulation toolbox, however I am quite new at using this toolbox and need some help :-)
I want to simulate a MIMO system of a 2-DOF robot arm. The robot arm consists of two links, the first link can rotate arround its origo at its end, and the next link moves inside the first link, in and out.
So the two outputs is define as
r (radius), which is the distance to the end-effector of the robot, and
theta, which is the angular postion of the robot arm
FYI, the two inputs are the currents send to the two motors controlling each link.
I have set up A, B, C and D matrices in the attached VI file and putted it inside a simulation loop.
Now I need help :-)
I want to simulate the system when a ramp input is applied to the two inputs and plot the two outputs in a polar graph to show the end-effectors position when the system is just "let loose". The result should be a spiral (this is verified in MATLAB simulink).
So please, I need help setting up the VI to do the above, can anyone help?
Best regards
Simon
MSc. Eng.
Message Edited by SCMAJA on 10-16-2009 11:21 AM
LabVIEW 8.6 / 2009 / 2010
Vision Development Module 8.6 / 2009 / 2010
VBAI 3.6 / 2010
Attachments:
2 DOF robot with ramp input, polar coordinates plot, state space.vi ‏49 KB

Hello Simon,
The error comes from your Ramp Input. Since your system is MIMO, you would need to feed in a vector input to the system.
I've changed your VI and attached here~!
Andy Chang
National Instruments
LabVIEW Control Design and Simulation
Attachments:
MIMO Robot VI.vi ‏76 KB

Advice/Recommendation please? How to best handle big models with various schemas?

Hi
Using DM 3.3.0.747.
We have several bespoke applications, each using its own data model in separate schemas. They do share various entities/tables which are made available in a shared schema. There are references to these shared tables, etc. (e.g. foreign keys)
We want to embark on a process to reverse engineer and then maintain these applications' schemas in Data Modeller.
I would really like your views on how to best approach this. The main concern is that the bigger the design (or more models/sub-views) the slower actions like saving and loading it becomes. Once you also have it version controlled more time is added onto saving and synchronising with the sub-version repository and between team members.
The thinking is to primarily have each application (and hence its own schema) in separate designs (projects), but include tables from the shared/core schema as needed. Would this be a good/recommended approach?
How does one address potential changes made (differences introduced) that may conflict between these separate designs?
e.g. in physical model the schema becomes a user that has permissions, etc. and that same user may be in multiple designs. Each design is version controlled, but in the end only exists once in the database. If each design is synch'ed with the database, DDL generated and executed, this can cause one design to add permissions, etc. that the second DDL from the second design removes or replaces with its own?
I hope my question/scenario is clear enough. If not, please revert to me for more clarification.
Thank you & Regards

Hi Hans,
I think it's better to use DM 4.0 and have everything in one design.
1) You can import all schemas you need into one design (one relational model). Save that design - important to do it before using "remote objects" approach
2) Use "Create new models based on schema names" wizard available in context menu for relational model in browser. Wizard will create new relational model for each schema in originating model and create there tables and views that
belong to that schema. All objects in originating model become read-only "remote objects".
If table (in new model) has a foreign key that refer table in another schema (now that table is moved to another new model) then "remote object" presentation is created for referred table.
At the end you'll have one large model with read-only remote objects and set of relational models that keep the track of foreign keys between tables in different schemas in database.
You can keep the originating model (the large one) in order to have global picture or delete it.
Properties from physical model are also transferred to new models in DM 4.0.
3) Check "Show 'Select relational models' dialog" in "Preferences>Data Modeler" - upon "open design" that will bring up dialog allowing to select which model to be loaded. The choice is persisted and
applied next time you open design (no need to see that dialog again if no change in what to be loaded).
4) For each model you can create "DDL generation" configuration (one or more) and exclude remote object from generation in DDL. Permissions should be maintained in model where table is editable and where DDL for that table will be generated.
The thinking is to primarily have each application (and hence its own schema) in separate designs (projects), but include tables from the shared/core schema as needed.
I won't recommend it. I know it's possible to have remote object in another design but you'll face following problems:
1) You cannot use design level domains and definitions in data types model
2) Remote object from another design are sensible to location of that remote design. You need to maintain the same directory structure everywhere designs (all related) are checked out and they need all to be checked out before dependent design to be open
3) You need to add remote objects manually while wizard described above will do it for you in the scope of one design
The main concern is that the bigger the design (or more models/sub-views) the slower actions like saving and loading it becomes.
The number of models shouldn't be a problem with support of "Select relational models" dialog. Subviews will impact loading if only they are large and are visible when "save" is used.
Total number of objects in model doesn't impact "save' operation - only modified objects are saved.
Yes, there is overhead for versioned designs - one more reason to move to DM 4.0 - SVN client 1.7 is used there.
Philip

Registering with the WebEx Data Center and the Cisco WebEx Node Management System

Dear guys, ...
Please help,
i want to implement to webex node ASR1000, i have read in "Configuring the Cisco Webex Node for ASR 100.pdf", there is prerequisites to implement it, that is "Registering with the WebEx Data Center and the Cisco WebEx Node Management System"
Can someone tell how to "Registering with the WebEx Data Center and the Cisco WebEx Node Management System"
Are there any step by step documentation to "Registering with the WebEx Data Center and the Cisco WebEx Node Management System"?
Thank you
BR

You should have received a PAK Key with your order. Go to Cisco licensing and enter the PAK Key as this will start the process. Once the PAK Key is validated a screen will be displayed to enter your request for ASR 100 integration. It normally takes a few days to a couple of weeks to get the information back from WebEx needed to configure your ASR.
If you did not get a PAK Key contact your WebEx rep to get the process started to integrate your ASR to your WebEx site.
Hope this helps
John

Forecast model K (Constant with smoothing factor adjustment)

Hi All,
i am using forecast model K in materail master. I would like to know the system calculation on forecast value?
For Example:
Consumption qty maintained in material master for last 3 months.
Period          Total consumption
04.2011     100
03.2011     150
02.2011     200
When i am using Forecast model K, system is calculating as follows,
Period       Orig. HV   Corr. HV   Ex-post FV     Orig. FV
M 02.2011          200        200
M 03.2011          150        150        200
M 04.2011          100        100        155
M 05.2011                                                           106
05.2011     Forecast value is 106, Basic value is 105.500, Error total is -105 and MAD is 27.
I would like to know the system calculation of these value. Particularly Basic value and MAD.
And also the difference between Forcast Model D and K if possible.
When i am using Forecast model D, system is calculating as follows,
Period       Orig. HV   Corr. HV   Ex-post FV Orig. FV
M 02.2011          200        200
M 03.2011          150        150        200
M 04.2011          100        100        190
M 05.2011                                           172
Basic value 172.000,         MAD 38,         Error total -140
Thanks in advance,
Babu

MODEL K:
Constant Model with First-Order Exponential Smoothing
The constant model with first-order exponential smoothing is derived as in formula (5). A simple transformation gives the basic formula for exponential smoothing as shown in (6).
To determine the basic value, you only require the basic value from the preceding period, the last past consumption value and the alpha smoothing factor. The smoothing factor weights the most recent consumption values more than the less recent ones, so that they have a stronger influence on the forecast.
The forecast value is the basic value for the last period for which historical data is avaialble, that is the last ex-post period.
where k> n
How quickly the forecast reacts to a change in consumption pattern depends on what value you give the smoothing factor. If you set alpha to be 0, the new average is equal to the old one and the basic value calculated previously remains; that is, the forecast does not react to current consumption data. If you give alpha the value 1, the new average equals the last consumption value.
The most common values for alpha lie between 0.1 and 0.5. An alpha value of 0.5 weights past consumption values as follows:
1st historical value : 50%
2nd historical value : 25%
3rd historical value : 12.5%
4th historical value : 6.25%
and so on.
The weightings of past consumption data can be changed by one single parameter. Therefore, it is relatively easy to respond to changes in the time series.
The constant model of first-order exponential smoothing derived above is applicable to time series that do not have trend-like patterns or seasonal-like variations.
MODEL D:
I think that simple constant model is just a normal average.

Macbook Pro late 2012 model with intel processor and 4G of RAM. I upgraded to Yosemite and now my system is so slow.   I do not have a backup to revert to because of insufficient space. Do I need to upgrade RAM or do I have to reinstall Mtn Lion?

I have a Macbook Pro late 2012 model with intel processor and 4G of RAM. I upgraded to Yosemite and now my system is so slow.   I do not have a backup to revert to because of insufficient space. I have ordered a 1T external drive to do a backup now. What can I do to improve my system performance?   Do I need to upgrade RAM or do I have to reinstall Mtn Lion?

I have a Macbook Pro late 2012 model with intel processor and 4G of RAM. I upgraded to Yosemite and now my system is so slow.   I do not have a backup to revert to because of insufficient space. I have ordered a 1T external drive to do a backup now. What can I do to improve my system performance?   Do I need to upgrade RAM or do I have to reinstall Mtn Lion?

Enums with constant-specific method implementation

Just faced the following problem. I have a persistent class with one of the fields of it is enum with constant-specific method implementation:
@Persistent
public class Message
   static public enum Type
       DEFAULT
           @Override
           public String getDescription() { return "Some description"; }
       public abstract String getDescription();
   private Type type;
}When I try to store the record, I get the exception:
java.lang.IllegalArgumentException: Class could not be loaded or is not persistent: messages.Message$Type$1The problem seem to be in that compiler creates a separate class, namely Message$Type$1.class for the DEFAULT instance and this class is not known by BDB..
If I remove the constant-specific method from enum, everything's working fine (as the ..$1.class is not created by compiler).. Except the fact that I'd like to have constant-specific methods there..
Any ideas on this? Maybe it's a bad idea to create constant-specific methods if it means that each constant would get own class file (and they would bloat the storage routines)?

Hi Mikhail,
I recreated the problem here and you're right, constant-specific methods aren't working. This isn't something we thought about, to be honest, or tested.
Just based on an initial quick look I see that for the compiler generated class, the Class.isEnum method returns false, which is why we don't recognize this as an enum and eventually why we throw the exception you're seeing. But assuming that we can identify the class as an enum (that shouldn't be too difficult) I don't know what other problems we will run into in trying to support this.
For now I think the best thing is to avoid using the constant-specific methods. I have opened a ticket (#18357) so that we'll remember to look into this in more detail and see whether it can be supported in the future.
If we are able to support it, then I'm hoping that we won't to store extra metadata for constants that have methods. In other words, I'm hoping that we won't have to add any extra storage or processing overhead.
--mark

LOAD VILLA MODEL WITH TEXTURES

HI FOR ALL
FIRST I HAVE A PROBLEM IN MY GRADUATION PROJECT I WANT TO LOAD A 3D VILLA MODELS WITH TEXTURES
I LOADED MODELS BUT TEXTURES DID NOT APPEAR PLEASE CAN ANY ONE HELP ME
SECOND I WANT TO PUT THE JAVA 3D APPLET ON A WEBSITE HOW CAN I PUT THE J3D APPLET IN HTML DOC ??

This is my appleT
{code */
public class OnAppletView extends Applet {
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//        String objUrl="";
//         Connection conn=null;
//          String UserName="root";
//          String Password="password";
//          String Url="jdbc:mysql://localhost/City";
//                ResultSet rs=null;
//                try
//          Class.forName("com.mysql.jdbc.Driver").newInstance();
//          conn=DriverManager.getConnection(Url,UserName,Password);
//          System.out.println("Database connection established");
//          Statement s=conn.createStatement();
//          s.executeQuery("select url from resources where obj1='villa' ");
//          rs=s.getResultSet();
//                if(rs!=null)
//              try
//              while(rs.next())
//                   objUrl=rs.getString(1);
//                        System.out.println("objjjj"+objUrl);
//          catch (Exception e) {
//                    // TODO: handle exception
//               e.printStackTrace();
//          s.close();
//          conn.close();
//          System.out.println("DB Connection terminated");
//          catch (Exception e) {
//               e.printStackTrace();
// Create the root of the branch graph
TransformGroup vpTrans = null;
BranchGroup objRoot = new BranchGroup();
ObjectFile f = new ObjectFile(ObjectFile.RESIZE | ObjectFile.TRIANGULATE | ObjectFile.STRIPIFY );
Scene s = null;
try {
// f.setBaseUrl( new URL("file:///"));
// s = f.load(new URL("file:///C:/Users/Mido/Desktop/ObjectLoader/villa1/villa1.obj"));
// f.setBaseUrl(new URL("file:///C:/Users/Mido/Desktop/OBJ-Models/Unterstand&Carport/"));
// s = f.load(new URL("file:///C:/Users/Mido/Desktop/OBJ-Models/house/casa1/casa1.obj"));
f.setBasePath("C:\\Users\\Mido\\Desktop\\NewVilla\\");
s = f.load("C:\\Users\\Mido\\Desktop\\NewVilla\\House02b.obj");
} catch (FileNotFoundException e) {
System.err.println(e);
System.exit(1);
} catch (ParsingErrorException e) {
System.err.println(e);
System.exit(1);
} catch (IncorrectFormatException e) {
System.err.println(e);
System.exit(1);
/// objRoot.addChild(s.getSceneGroup());
Vector3f translate = new Vector3f();
Transform3D T3D = new Transform3D();
TransformGroup TG = null;
SharedGroup share = new SharedGroup();
share.addChild(s.getSceneGroup());
float[][] position = {{0.0f, -0.1f, -3.0f},
{6.0f, -0.1f, 0.0f},
{6.0f, -0.1f, 6.0f},
{3.0f, -0.1f, -10.0f},
{13.0f, -0.1f, -30.0f},
{-13.0f, -0.1f, 30.0f},
{-13.0f, -0.1f, 23.0f},
{13.0f, -0.1f, 3.0f}};
for (int i = 0; i < position.length; i++) {
translate.set(position);
T3D.setTranslation(translate);
TG = new TransformGroup(T3D);
TG.addChild(new Link(share));
objRoot.addChild(TG);
vpTrans = su.getViewingPlatform().getViewPlatformTransform();
translate.set(0.0f, 0.3f, 0.0f);
T3D.setTranslation(translate);
vpTrans.setTransform(T3D);
KeyNavigatorBehavior keyNavBeh = new KeyNavigatorBehavior(vpTrans);
keyNavBeh.setSchedulingBounds(new BoundingSphere(new Point3d(), 1000.0));
objRoot.addChild(keyNavBeh);
objRoot.compile();
return objRoot;
} // end of CreateSceneGraph method of KeyNavigatorApp
public void init() {
// TODO start asynchronous download of heavy resources
setLayout(new BorderLayout());
GraphicsConfiguration config =
SimpleUniverse.getPreferredConfiguration();
Canvas3D canvas3D = new Canvas3D(config);
add("Center", canvas3D);
// SimpleUniverse is a Convenience Utility class
SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
BranchGroup scene=null;
try {
scene = createSceneGraph(simpleU);
} catch (MalformedURLException ex) {
Logger.getLogger(OnAppletView.class.getName()).log(Level.SEVERE, null, ex);
// LIGHT
AmbientLight ambientLight = new AmbientLight(new Color3f(Color.black));
ambientLight.setInfluencingBounds(new BoundingSphere(new Point3d(), 100.0));
DirectionalLight directionalLight = new DirectionalLight(new Color3f(Color.WHITE), new Vector3f(0.0f, 0.0f, -1.0f));
directionalLight.setInfluencingBounds(new BoundingSphere(new Point3d(), 100.0));
BranchGroup lightingBG = new BranchGroup();
lightingBG.addChild(ambientLight);
lightingBG.addChild(directionalLight);
PlatformGeometry platformGeometry = new PlatformGeometry();
platformGeometry.addChild(lightingBG);
simpleU.getViewingPlatform().setPlatformGeometry(platformGeometry);
//END OF LIGHT
// This will move the ViewPlatform back a bit so the
// objects in the scene can be viewed.
simpleU.getViewingPlatform().setNominalViewingTransform();
// TO INTERACT WITH MOUSE
// OrbitBehavior orbitBehavior = new OrbitBehavior(canvas3D , OrbitBehavior.REVERSE_ALL);
// orbitBehavior.setBoundsAutoCompute(true);
// orbitBehavior.setSchedulingBounds(new BoundingSphere(new Point3d() , 100.0));
// simpleU.getViewingPlatform().setViewPlatformBehavior(orbitBehavior);
simpleU.addBranchGraph(scene);
// TODO overwrite start(), stop() and destroy() methods
i wanT To implemenT a collision detection to prevent the viewer to walk through the wall what can i do ? there is a class ??

Airport Express (Model with 802.11G +54MBPS Mac/PC and Set Up Issues

Hi,
We have a 4 Mac and 1 PC Household. Cable Internet Service by Roadrunner.Cable model (owned) connected to a D-Link 802.11G wi fi router (by ethernet from cable modem)in the family room , then out to a Imac (the half moon base and LCD screen with a airport card also in the family room and the closet computer to the D-Link
router, (we did add a D-Link antenna to the router ? about 10 months ago (a D-Link ANT24-0700 (Version 1.2)and a HP 4 in 1 printer attached via USB to the Imac
,a eMac 1.25 ghz 1Gb ram with airpot card also connected wirelessly (no printer attached on the same floor but in a ajoinging room about 20 feet from the Router, and another eMac 1.0 Ghz 1Gb ram with airport card in the upstairs part of our house (a bedroom) and no issue with Internet connection (it has a Epson 3in 1 printer attached via USB, and a MacBook Pro with 802.11N wireless card in side , bought for a Christmas/Birthday Present and also for college.It to has no issues with the Internet where ever it may be in the house. Our sole PC a HP tower with a added D-Link WDA -2320 Range Booster Desktop Adapter (802.11G) and we added a D-Link Antenna same model as the other a ANT24-0700 to help with Internet access which it did as well as adding some ram to increase page loading time etc. It does not have a printer attached. I will get to the Topic Area now
The Airport Express. I was not involved in the set-up as I was laid up due to a bad back and post major knee surgery , But I always (especially recently) wondered why the light was amber and blinking. I read through the manual and also
Apple.com support and MacFixit.com (which is under construction and moved to part of Cnet.com)and then went to the Airport Express Discussion area (sorry for being so wordy) I need a Twitter account to post!) We have a network name for the D-Link and the computers all were added and it also supports a Xbox 360, a Sony PlayStation 3 and a Nintendo Wi (in online use without issue) but..
A network was also as it appears to myself) for the Airport Express and under the half moon bars showing connection strenght (there is our D-Link network "phoenix" with security protection WPA2 I believe) as I have set up the router, We had a Apple Base station prior that was ? 802.11B (a half moon white unit) still have it in the box ) So for normal daily use, checking e-mail and internet use all of the computers use the "phoenix" or D-Link supported Router 802.11G
and The other network calld Apple Network with numbers and letters after it (and hopefully security) password is unknown , The Airport Express is set up connected via USB to a HP B&W laser printer which has saved quite a bit of money on ink, To utilize that printer you must switch from "phoenix" The D-Link router network to the Apple Network (followed by letters and numbers) The Imac and the eMac in the family room and a ajoing room (after switching to the Apple Network
can than print to the lasr printer. The eMac upstairs and the HP Windows XP Professional software can not print to the laser printer (yet the HP PC shows it as a individual network and a strong signal, equal to the Internet connection from the D-Link, and the eMac (after switching under the half moon (not the proper name I am sure) to get to the Apple Network to print , it will not print, yet it shows a 5 bar signal, same as the D-Link connection. I do believe we have two seperate networks (but do not understand why the two Mac's in the family room can print to the laser printer by simply switching networks and then file and print. ** One other 9probaly major item is that it states to set up the Airport Express with a Mac With OSX 10.4 or later (at the time of set up, we had the Imac and two eMac's all running Panther OSX 10.3.9 9which they continue to have installed) We obtained the HP Tower and Monitor and HP 4in 1 printer ust before Christmas in 2008 and the MacBook Pro in Mid December 2009 (current model and running Snow Leopard 10.6. The HP Tower runs Windows Xp Professional (Service Pack 3) so the MacBook Pro which is much more mobile , could be used to do the set-up, or the HP Tower coulf be moved temprarily, I do recall if Router changes (at least with The D-Link You need to be connected by Ethernet to the Mac
that would be doing the set up/configuration of the router (and it runs OSX 10.3.9 and is a older Mac (with 80Gb Hard drive that is partioned for OS9 and OSX as well , it is under a Ghz processor wise and less than 1 Gb of ram as the last ram slot required a seal to be broken and 256mb of ram (?) could be added
it has 768 mb of ram but knock on wood running well. We use Lacie external drives
on the Imac and both eMac's and need to get external drives for the HP PC as well as the Mac Book Pro (15" screen)
I apoogize if I repeated myself, and rambled but I wanted to (in one post) to explain our set up and network configuration
Questions
1) if indeed it is that the two networks is true and a set yp that is not correct
can the Airport Express be configured without opening up the router (when ever that happens it seems one computer is unable to get online and each time its a differnt one a Mac or veen the PC
The PC under My Computer and Networks clearly shows the wto distinct and seperate netwoks with strong signals and the distance is not far (it is through a floor as the other emac and the PC are upstairs and cabling by ethernet is not a option
2) If I need to open the router would I add the Airport Express as a client as if it was one of the computers or gaming systems on the network? (adding the Mac adress or IP address (not sure how you find the Mac address) and its been while since the router was opened up for any additions or work on it.
3) would it be on the same channel as the router or not ?
4) Hopefully with proper configuration the light will stay on (and green) on the A/E and the eMac and HP PC will be able to print to the laser printer. Currentlt
when anything needs printed from the PC its put on a Flasg Drive and plugged in tothe Imac and the the Apple Network is selected and data printed, The eMac upstairs has the option of using the attached Epson 3 in one or doing the Flash stick work around.
I would be verya appreciative if some one took a look at the set up above and advised me of what is right, what is not right* and what to do to fix things up
I would imagine after proper set up, delete the Apple Network from the PC and eMac upstairs and ? all of the computers as we should have one base station (the D-link and the spoke (the A/E connected by UBS to the A/E (it may be ethernet but the cable connection from the A/E to the HP laser printer is correct (the rest of the A/E set up ... Please , tell me where it is and where it should be
and ? any idea why we can print to the laser printer down stairs and not up stairs ? it did mention printer set up with Panther as possible, page 43 of themanual we have un chaper 5 Tips and Troubleshooting (under whn your printer isn't responding) (we do not have the interfereance listed in the manual,
our phones are land line, one 900 mghz and the others 5.8 ghz
It is possible to move the A/E and laser printer if that would help the two computers (desktops) upstairs) bt the distance is way less than 150 but their is a floor and ? duct work (metal ) but I think here is a place to stop typing and let some of the experts on the discussion forums take a look.
one lst note (as the lap top will be going off to college in the fall (runnning Snow Leopard, and the other 3 Mac's run Panther OSX 10.3.9 should the HP PC windows Xp Professional be the computer to set up the air port express and the Airport Utility proram installed & would this conflict with the current Router (set up by a Macc running OSX 10.3.9 (Panther) i.e (should both set ups be on the same computer?) but actually aThe D-Link is OSX10.3.9 compatible (and 802.11G) and set up requires ethernet connection to a Mac (You type in the numbers and . etc and password as administror and you are in, or should the admin be on the same cpmpuer for the router and A/E ?
(and considering a Airport Extreme Base Station as well as dual frequency simulataneus and 802.11N (for the laptop now) and future, or wait. The 802.11
in theory would broadcast farther..?? even if computers had 802.11b(our Mac Desk tops and the PC 802.11B card
Thanks Again!!!
Many, Many Thanks
amnienttales

William Boyd Jr.
Hello again,
D-Link Router is model DGL-4300 (along with a D-Link ANT24-0700 Omnidirectional
7dbi Antenna . Our Cable Internet ISP (Roadrunner) provides consumers with dynamic ISP address's . All Mac's have Airport Cards and The Hp Tower XW4550 has a D-Link Rangebooster G Desktop Adapter WDA-2320 (also with a D-Link ANT24-0700 Omnidirectional 7 dbi Antenna (the PC OS is Win XP Pro Service Pack 3) The 3 desktop Mac's run OSX Panther 10.3.9 , The 15" MacBook Pro OS is OSX 10.6 Snow
Leopard (not sure what is after the .6 (right now) D-Link's website is
http://www.dlink.com , I have configured this router multiple times in the past.
also added as clients on the network (Utilizing the D-Link Router) are a X-Box 360, Sony Play Station PS3, and a Nintendo Wii all of which have on line ability
and enables online video game play with any one online.
As mentioned prior the Airport Port Express is Model A1084 Part No. M9447OLL/A
which is USB conected to a HP LaseJet B&W , model 1020 and some how the two computers near it can switch to the Airport Express Network from the D-Link Router based Network and print wirelessly to the A/E connected LaserJetPrinter
I realize I will need to reconfigure the D-Link Router and add the A/E as a client. I will try first to use the Airport Utility and see if I can do anything
Utilizing it (adding it to the D-Link network, I think its unlikely but worth a try but* the password is unknown but I have a few guess's as to what it may be.
I do have the necessary admin and network paswwords to cconfigure the D-Link Router,
1) * If the the A/E Utility experiment fails and I need to re-configure the router * do I need to (as per the Airport Express Set Up Guide (Use a Mac with OSX 10.4 or later or a PC with Win Xp Home or Professional (have a desk top PC that has the specs) and The Mac Book Pro meets the Mac Spec's)
If I can not get a password to work on the A/E I would reset it using the reset button
And before plugging in the A/E , connect the appropraite cables in our case a USB cable to the LaserJet Printer then plug in the A/E
2) I would then connect by Ethernet from Either the Mac Laptop or The PC to the D-Link router (if not the router will not set-up correctly)
3) The one question that puzzles me is that we are not using the A/E as a base
but a client
in two sections(Using Airport Express , connecting a Printer via USB
and use Airprt Utility to create a new network or join a new newWireless computers using Mac OSX 10.2.7 (Tiger) or later or a PC with Windows XP and it then goes in to the steps of ising the printer for both a Mac and a PC (using Bonjour on the CD that came with the A/E (this appears to contradict needing to use Mac OSx 10.4 or a PC with Win Xp set the A/E up for use as a printer
(joiing a new network or existig one)
And in Chapter 5 Tips and Roubleshooting= Your Airport Express Status Light Flashes amber & Your Printer is not responding (it is flashing amber and the printer does not respond to the two computers upsstairs (one Mac running OSX 10.3.9 & One PC running WinXp and its states to make sure the printer is selected
in the Printer list o client computers, to do this on a Mac using OSX 10.3 or later , open Printer Set Up Utility and follow steps and if a PC with Windows XP , Open Printers and faxes and then follow steps
in Closing ? can I configure the A/E Utility with a Mac using 10.3.9 as above or
? Per Chapter 1 Getting Started use a Mac with OSX 10.4 or later or a PC with Windows Xp Home or Professional
Perhaps I am taking the tips and trouble shooting and Printer Set up out of context or does the getting Started Computer specs contradict them or are they
for use if the A/E was going to be a Base Station and not a client..
Will keep at it,
ambienttales

Creation of Space failes with the following error

SR- 3-6660108191
Ver-11.1.1.6
In customer production environment when they attempting to creat a space from WebCenter, they receive the following:
Creation of space SteveSpace4_11January2013 failed with errors : WCS#2013.01.11.08.47.28: Errors were encountered in creating space. The main error is - Unable to grant permission SteveSpace4_11January2013. You may want to delete the current space if it is visible in your lists. Contact the administrator if the problem persists.
In Spaces logs-
<Jan 11, 2013 9:44:37 AM CST> <Warning> <oracle.webcenter.spaces> <BEA-000000> <Ignorable Exception in Create GS
oracle.webcenter.spaces.operations.GroupSpaceOpsIgnorableException: Granting of Role Moderator partially succeeded for identity MCCORMICK.STEPHEN.J.1251888201-0001. Granting permissions for Discussions failed.
     at oracle.webcenter.spaces.internal.model.operations.GroupSpaceOpsSecurityRoleMappingHandlerPlugin.duringCreateGroupSpace(GroupSpaceOpsSecurityRoleMappingHandlerPlugin.java:631)
     at oracle.webcenter.spaces.internal.model.SpacesManagerImpl$2.run(SpacesManagerImpl.java:1414)
     at oracle.webcenter.concurrent.RunnableTask.call(RunnableTask.java:44)
     at oracle.webcenter.concurrent.Submission$2.run(Submission.java:484)
     at java.security.AccessController.doPrivileged(Native Method)
     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
     at oracle.webcenter.concurrent.Submission.runAsPrivileged(Submission.java:498)
     at oracle.webcenter.concurrent.Submission.run(Submission.java:424)
     at oracle.webcenter.concurrent.Submission$SubmissionFutureTask.run(Submission.java:888)
     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
     at java.util.concurrent.FutureTask.run(FutureTask.java:138)
     at oracle.webcenter.concurrent.ModifiedThreadPoolExecutor$Worker.runTask(ModifiedThreadPoolExecutor.java:657)
     at oracle.webcenter.concurrent.ModifiedThreadPoolExecutor$Worker.run(ModifiedThreadPoolExecutor.java:682)
     at java.lang.Thread.run(Thread.java:662)
Caused By: oracle.webcenter.webcenterapp.security.WCSecurityRoleMappingException: Granting of Role Moderator partially succeeded for identity MCCORMICK.STEPHEN.J.1251888201-0001. Granting permissions for Discussions failed.
     at oracle.webcenter.security.rolemapping.RoleManager.processServiceUsers(RoleManager.java:757)
     at oracle.webcenter.security.rolemapping.RoleManager.processUsers(RoleManager.java:378)
Jan 11, 2013 9:44:37 AM CST> <Warning> <oracle.webcenter.spaces> <BEA-000000> <Exiting createGroupSpaceInternal>
<Jan 11, 2013 9:44:37 AM CST> <Error> <oracle.webcenter.spaces> <BEA-000000> <Creation of space SteveSpace7_11January2013 completed with warnings : WCS#2013.01.11.09.44.37: Space created with the following warning(s) : Issues were faced
while provisioning the service(s) - Announcements. Check the space services settings page if these services have been provisioned.>
<Jan 11, 2013 9:44:37 AM CST> <Error> <oracle.webcenter.spaces> <BEA-000000> <The exception occured during space creation for spaceName = SteveSpace7_11January2013due to =>
<Jan 11, 2013 9:44:37 AM CST> <Error> <oracle.webcenter.spaces> <BEA-000000> <
oracle.webcenter.spaces.SpacesException: Space created with the following warning(s) : Issues were faced while provisioning the service(s) - Announcements. Check the space services settings page if these services have been provisioned.
     at oracle.webcenter.spaces.internal.model.SpacesManagerImpl.createGroupSpaceInternal(SpacesManagerImpl.java:1865)
     at oracle.webcenter.spaces.internal.model.SpacesManagerImpl.access$200(SpacesManagerImpl.java:225)
     at oracle.webcenter.spaces.internal.model.SpacesManagerImpl$1.run(SpacesManagerImpl.java:553)
     at java.security.AccessController.doPrivileged(Native Method)
     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:259)
     at oracle.security.jps.internal.jaas.AccActionExecutor.execute(AccActionExecutor.java:65)
     at oracle.security.jps.internal.jaas.CascadeActionExecutor$SubjectPrivilegedAction.run(Cascade
In Diagnostic logs:
[2013-01-11T09:44:06.053-06:00] [WC_Spaces2] [WARNING] [] [oracle.webcenter.webcenterapp] [tid: pool-1-daemon-thread-4] [userId: MCCORMICK.STEPHEN.J.1251888201-0001] [ecid: 0000mii9Zr1Bt1G5uz4EyX00051O0005OU,0:1:3:290:26] [APP: webcenter#11.1.1.4.0] [URI: /webcenter/faces/oracle/webcenter/webcenterapp/view/pages/admin/WebCenterAdmin-Communities.jspx] grantRoleForRoleMappedServices : warning : serviceId :oracle.webcenter.collab.forum
[2013-01-11T09:44:06.058-06:00] [WC_Spaces2] [WARNING] [] [oracle.webcenter.webcenterapp] [tid: pool-1-daemon-thread-4] [userId: MCCORMICK.STEPHEN.J.1251888201-0001] [ecid: 0000mii9Zr1Bt1G5uz4EyX00051O0005OU,0:1:3:290:26] [APP: webcenter#11.1.1.4.0] [URI: /webcenter/faces/oracle/webcenter/webcenterapp/view/pages/admin/WebCenterAdmin-Communities.jspx] [[
oracle.webcenter.security.rolemapping.RoleMappingException: The Role Mapping provider encountered an exception while performing security role mapping for service oracle.webcenter.collab.forum.
     at oracle.webcenter.security.rolemapping.RoleManager.processServiceUsers(RoleManager.java:757)
     at oracle.webcenter.security.rolemapping.RoleManager.processUsers(RoleManager.java:378)
     at oracle.webcenter.security.rolemapping.RoleManager.addUsers(RoleManager.java:243)
     at oracle.webcenter.webcenterapp.internal.model.security.WCSecurityManagerImpl$5.run(WCSecurityManagerImpl.java:1313)
     at oracle.webcenter.concurrent.RunnableTask.call(RunnableTask.java:44)
     at oracle.webcenter.concurrent.Submission$2.run(Submission.java:484)
     at java.security.AccessController.doPrivileged(Native Method)
     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
     at oracle.webcenter.concurrent.Submission.runAsPrivileged(Submission.java:498)
     at oracle.webcenter.concurrent.Submission.run(Submission.java:424)
     at oracle.webcenter.concurrent.Submission$SubmissionFutureTask.run(Submission.java:888)
     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
     at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
     at java.util.concurrent.FutureTask.run(FutureTask.java:138)
     at oracle.webcenter.concurrent.ModifiedThreadPoolExecutor$Worker.runTask(ModifiedThreadPoolExecutor.java:657)
     at oracle.webcenter.concurrent.ModifiedThreadPoolExecutor$Worker.run(ModifiedThreadPoolExecutor.java:682)
     at java.lang.Thread.run(Thread.java:662)
Caused by: oracle.webcenter.security.rolemapping.spi.RoleMappingSPIException: javax.xml.soap.SOAPException: javax.xml.soap.SOAPException: Bad response: 400 Bad Request
     at oracle.webcenter.collab.share.security.DefaultRoleMapper.addUsers(DefaultRoleMapper.java:78)
This looks like the user dont have permissions to create the space, but even Admin user weblogic also geting the same error.
Please may I know how to debug this and where to see for the permissions.
Thanks!!

Hi,
Please follow steps, may be your issue will be resolved.
Steps:
1.Create the Discussions administrator user using the DefaultAuthenticator provider as indicated here:
Oracle Fusion Middleware Administrator's Guide for Oracle WebCenter
11g Release 1 (11.1.1)
23 Managing Security
23.3.4.1 Migrating the WebCenter Discussions Server to use an External LDAP
The Discussions Administrator user must exist in the external LDAP and also you need to create the user using the DefaultAuthenticator provider in the embedded LDAP.The username in the embedded LDAP must match the username in the External LDAP.
Review all steps from the above section of the documentation to be sure you performed all the steps.
2.Grant WebCenter Spaces Administrator Role to the Discussions Administrator user as indicated here:
Oracle Fusion Middleware Administrator's Guide for Oracle WebCenter
23.3 Configuring the Identity Store
23.3.5 Granting the WebCenter Spaces Administrator Role to a WebCenter Spaces User
23.3.5.1 Granting the WebCenter Spaces Administrator Role Using Fusion Middleware Control
3.Restart the WLS_Spaces and WLS_Services Managed Servers.
If this helps please mark.
Regards,
Kishore

Implementation of state space model with constant disturbance in mathscript and simulation

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