Reduced Order (Luenberger) Observer in Control Systems

Hello,
I am trying to implement a simulation of a control system (in state space formalism) in which one of the strategies is to estimate various states and build a Luenberger (reduced/minimum order) observer. First I should simulate the continuous time model, and then discretize it in order to implement later in real time module.
Although I have already done a full order observer using the Control, Design and Simulation Module, I have no idea how to build a reduced order observer. Anyone could provide some ideas?
Best regards,
Javi.

It is like I do not have all of the state variables fully accesible to meassure and feedback, and I have to estimate the ones that I cannot meassure with enough accuracy. Thus, in the theory, there is a way to construct a minimum order observer to estimate these variables and feedback them with the meassured ones.
I have checked the help of the Control, Design & Simulation manual and says something like you have to implement the usual observer structure (If I am understood that well) and state the variables you cannot access putting some zero value at their place in a diagonal matrix... but I am not totally sure about if that
is the correct way to do it.
Another way I am thinking is to construct the state space or the transfer function of the observer model and try to implement the block diagram that appears
in the theory part.
Also I am going to check the minreal command.
Thanks and best regards!

Similar Messages

Need help with control system that reduces a flat output signal every time a certain input exceeds given value

I'm having difficulty setting up a closed loop control system that reduces one of my voltage outputs (connected to a high voltage system) by 30% every time a measured voltage exceeds a certain threshold value. I'm using a USB 6229 DAQ. I've been trying to create a waveform that looks like a DC signal, but the only waveforms that I can seem to manipulate while my VI is running are the stock waveform types. Also, I've tried to use a formula node or conditional structure to update the output value every time the measured voltage exceeds a given value, but everything I do reinitializes the output value every time it runs or won't store the previous signal value. I'm using LabVIEW 8.6 and don't have the PID or similar express VI's. I've attached the mess I've got working right now. Can anyone help? I'm really stuck!
Thanks!
Attachments:
HiV step down.vi ‏40 KB
output control.vi ‏100 KB

I'm sorry it's such a mess; I'm still pretty new at this. These are both little driver programs for a larger overall control program.
Output control is meant to send a flat signal to the DAQ whose value can be manipulated while the VI is running. I have the second activated segment merely to check the values being output. I didn't realize I attached a version with a meaningless control...I had a control where the user would put in the stating voltage (the high voltage source has a 1V-100V setting for external control). I've attached this slightly different but equally dysfunctional version. Ideally, I would have liked something like the analog signal generator vi to come with an input wiring for offset on the DC signal. Most of the code was diabled because it is copied from an example; it is largely rubbish. I initially used the DAQ Assistant, but when things weren't working out I switched to putting in each step manually to try to troubleshoot.
As far as HiV step down is concerned, I've tried something different with a nested case structure (if that's the right terminology?), and I've attached that file. I think this problem has been solved, but you never know!
Attachments:
output control slightly different.vi ‏100 KB
HiV step down w case structures.vi ‏44 KB

First order control system for proportional valves

I am working on a proportional valve control program. We have four gas lines and it is desired to send four different gases through a combustion chamber sequentially. The close time for each valve is determined by the pressure measurement inside the combustion chamber. For instance, firstly, we let the nitrogen gas flows to the chamber, and the pressure inside the of it reaches 5 bars, we closed the nitrogen valve, and open the argon gas valve, and hold it opened until the pressure is reached at 15 bars inside the chamber and so on.
I was thinking on utilizing PID for control of these valves, however, one author from my institute said that you can not do this with a PID program, you can do that with a first order control system. Because in the system, it is not allowable to gases exceed their set points (set pressure values). PID controls the system with osilations around set point and after it provides the set value, but in this case, we are not allowed to exceed the set point (we may reach the set point slowly and asymptotically, but never exceed it).
I have not background on controlling hence I need your help. Could I do that with Labview? Is there a first order system control module in Control & Simulation Toolkit? And also where can I find examples, tutorials, etc. -if there are- about first order system controlling? Thanks in advance.
Egemen

what you are trying to do can be done with PID, but you would need to tune it to avoid overshot. But, most importantly, the use of the closed-loop PID will guarantee that your system will follow the setpoint, which can be a ramp going from the 0 to 100 % of the valve. The ramp on setpoint is a typical control technique to avoid overshoot of the system.
Now, if you look in the PID palette under Control and Simulation, you will see the function called "Lead-Lag". This function is a 'first order' system and you can define a pole and a zero for your system. If your objective is just make the change smooth, you can make the Lead-Lag to work as a "Lag" (make the lead zero) and apply to your system. here is an example:
C:\Program Files (x86)\National Instruments\LabVIEW 2014\examples\control\PID\Simulation - Lead-Lag.vi
If you need something more complicated than Lead-Lag, than I would you advice to use the LabVIEW Control Design and Simulation Module. There you can really develop more advanced controllers, like higher order filters or Model Predictive Control. But this also requires you to have a better knowledge of control theory...
Barp - Control and Simulation Group - LabVIEW R&D - National Instruments

Budgeting and control system

friends,
we implemented fi, co, mm, sd, pp and project systems. we want to implement budgeting and control system. what is the exact flow of BCS in between these modules,
regards,

Hi,
Prepare Funds Management Installation
When implementing the Funds Management Government component, you should take care to carry out the individual steps in a particular order. You enter the required preconfigurations and functions at different points in the SAP System.
So when implementing Funds Management, you should observe the following sequence:
1. You use the "Enterprise Structure" to create company codes, FM areas, and controlling areas. For more information, see the Enterprise structure IMG in sections:
a) "Define, Copy, Delete, Check Company Code"
b) "Maintain FM Area"
c) "Define, Copy, Delete, Check Controlling Area"
2. You then assign an FM area to each company code and controlling area relevant to Funds Management.
For more information, see sections:
a) Assign company code to FM area
b) Assign controlling area to FM area
3. You create your G/L accounts in the General Ledger Accounting menu. For more information, read the chapter: Create G/L accounts in the G/L accounting IMG (FI-GL) under G/L account master records.
4. Use Financial Accounting customizing to maintain the field status definition groups. These determine which fields in the account can accept input, must be maintained, or are hidden, when you are entering business transactions. For more information, read: "Maintain field status variants" in the Financial Accounting Basic Settings.
Note that the additional account assignments "Commitment item", "Funds center" and "Fund" will only accept input if you mark the relevant fields as required or optional entries. This applies, however, only to G/L accounts whose commitment items are assigned with the 30 such as a revenue account. G/L accounts whose commitment items are assigned with a transaction other than 30 should have the error hidden.
If you want to reference earmarked funds when posting a payment, you must define the additional account assignment "Earmarked funds" as a required or optional entry.
5. Likewise, for Materials Management purchase requisition and purchase order postings which do not go into stock, you must flag the "Commitment item", "Funds center" and "Fund" fields as required or optional entries in order to be able to make entries in them. You can find more information in the Purchasing IMG in section "Maintain account assignment types" .
6. If you want to integrate inventory management with Funds Management, there are different ways of controlling this, depending on the warehouse concept you chose. For more information, go to the Funds Management IMG and read sections Make Other Settings and Integration with Inventory Management.
7. If you want to integrate Assets Accounting, you must go to the Funds Management implementation guide and flag as budget relevant the transaction types for the individual transactions (acquisitions and retirements). You can find more information in the IMG Funds Management Government in the section Flag Transaction Types as Budget Relevant.
8. If you want to integrate Payroll Accounting with Funds Management, you must define funds centers and funds for the individual Infotypes. For more information, see the Funds Management IMG Funds Management Government in the section "Define Start Date for HR Integration (Without HR Commitments Scenario 2)".
9. If you want to integrate Travel Management with Funds Management, the "funds center", "commitment item" and "fund" fields must be ready to accept input when you post in Travel Expense Accounting. You enter these settings in the Travel Management IMG Dialogue and settlement control -> Screen layout for trip data input -> Set up variable construction for account assignment objects.
10. You switch to the Funds Management application menu, create your master data (commitment items, funds centers and funds) and then define your account assignment derivation.
For more information on account assignment derivation in Funds Management, see component Funds Management (PSM-FM) under Account Assignment Derivation as well as section Define Account Assignment Derivation.
For more information on creating master data, see the component Master data in the componentFunds Management (PSM-FM).
11. You can then subsequently make the remaining settings via the Funds Management implementation guide. For more information, read the following chapters.
Further notes
The Funds Management application component can not be used simultaneously with the components Cash Budget Management and/or Project Cash Management if you use year-dependent master data in Funds Management.
If you want to use Funds Management with Cash Budget Management and/or Project Cash Management you must note that Cash Budget Management and Project Cash Management only process 10 character commitment items.
Regards,
Eli

Control Systems Engineer

Control Systems Engineer
Seattle Safety – Kent, WA 98032
Seattle Safety is looking for a qualified individual to fill an opening for Control Systems Engineer. Seattle Safety designs, manufactures, and installs advanced crash test sled systems that are used in automotive and aeronautical industries. The duties of the Control Systems Engineer include:
• Experience designing, testing, and optimizing industrial automation and control systems utilizing modern and classic control methodologies such as PID. Experience with neural networks.
• Strong background in mathematics, physics, and signal analysis.
• Electrical / Electronic design experience including automation.
• Design, troubleshoot, and test software written in LabVIEW 8.6 & 2012 and C.
• Help customers diagnosing electrical, software, and mechanical problems with their systems. This will sometimes involve working odd hours for customers on the other side of the planet.
• Support installations of crash test equipment at on-site locations worldwide.
• Provide round the clock technical support for team members locally and abroad in subject matters concerning performance, installation, and maintenance of software and data acquisition hardware.
• Prepare and maintain software flowcharts, layouts, and diagrams as needed to demonstrate solutions to outside staff.
• Work with current team members to restructure existing crash test software.
• Supports all aspects of software application design, development, testing, deployment, and support.
• Perform software testing at a unit and integration level to ensure expected behavior.
• Comment code clearly and consistently throughout the development process.
• Maintain professional relationships with suppliers and vendors in order to keep up with industry developments.
• Candidates must be located in the US, the northwest would be ideal.
Furthermore, the ideal candidate would possess the following skills:
• Advanced or expert knowledge of LabVIEW.
• Advanced or expert knowledge of C.
• Expert knowledge of industrial controls.
• Familiarity with a minimum one low-level programming language (C#, VB, Ladder, etc)
• Familiarity with data acquisition concepts and hardware.
• Discipline and organization with respect to software maintenance and version management. Experience with source configuration management tools a plus (CVS, ClearCase, Perforce, etc.)
• Experience with sophisticated feedback control systems.
• BSEE, BS Physics, and BSME are preferred but not required depending on experience.
• Ability to work both alone and with colleagues to solve problems and to weigh the merits of differing approaches.
Pay is commensurate with skills and qualifications of the applicant.

Dear Sir/Mam,
I’m particularly interested in the position of Control System Engineer, which relates strongly to my more than six years of experience in designing various applications for testing and automation. I am Certified LabVIEW Associate Developer & prepared for CLD also. Currently I am leading a team for the project for Machine Automation and remote diagnostics, and I believe I meet all the essential criteria of the position. My work at my current organization has been rewarding and productive. However, I wish to expand my career further, into the application designing and development role. The position also has a definite correlation with my practical knowledge and experience. You’ll see from my CV that I have been deeply involved in designing and development of various applications based on Programming techniques, hardware and network designing. I feel that I am well qualified to make an effective and useful contribution to design good application which will be market acceptable.
I’m enthusiastic about the chance to participate in a meaningful role with an industry leader in the field.
Thank you for your consideration of my application. Please contact me should you require any further information,
Yours sincerely,
Mohit Monga
Mohit Monga
Attachments:
Mohit Monga_CV.doc ‏159 KB

Recent graduated Control-Systems (embedded) enginneer, with experience in France/lebanon/Switzerland Looking for a Job With Labview

I am currently recently graduated from the University of Technology in Belfort-Montbeliard (France).
Master’s grade of “Electrical and control systems engineering”.
I am currently looking for a job in automation, control systems and electronic domain (I prefere LabView Developpement)
Salim DARWICHE
1 rue antonin artaud
31320 castanet tolosan
Tel: 0033.6.85485107
Email : [email protected]
Nationalities :
- French
- Lebanese
Date and place of birth:
April 18, 1986
Toulouse,
France
Education
2009
Master in Electrical and Control Systems Engineering
Option Embedded
systems
University of technology of Belfort-Montbliard france
2006 University
Diploma in Industrial and Maintenance Engineering
DUT Degree Equivalent to 3 years of
technical studies
Institute of technology of Saida
Lebanon
Experience
February
July 2009 Galley-Technologies (Neuchatel-Switzerland)
Mission:
Development of
Labview Modules for Pharmaceutics and Robotics
industries
Realization(s):
Communication and data-Analyse Software using
TCP/IP:
- Development of a software (Labview Programming) that would permit data
transfer between many pharmaceutical ovens, in order to analyse all production cycle, and test
the conformity of the final products.
5 Axis robot simulation software:
Concept and development of simulation tool for a robot working cycle
September 2007
February 2008 Valeo VSS (Paris France)
Mission:
Qualification and management of
automobile electronic components
Qualification of specific electronic components
Making sure that all electronics components will be qualified on time before the
Start-of-Project
- Discussion between me, Valeo supplier and Valeo Project Manager in order
to grant Valeo quality standard Specifications or to approve supplier deviations.
Management of electronic qualification documents on Valeo ePLM system.
- Participating to
daily quality reviews meetings and brainstorming in order to apply a PDCA (plan Do Check
Act)
Management of Valeo DSA products under IMDS Base
- Management and
declaration of Valeo Division Systems Access products under IMDS base (international Material
data systems)
- Creating MDS sheets then sending them to Automobile
Constructors.
February June 2006 United-Group Machinery
(Beirut-Lebanon)
Mission:
Renovating a bag-filling
machine
Realization(s):
Mechanical system
- Drawing all parts of
the machine (3D), assembly and motion using Autodesk Inventor.
- Unmount, replacing bad
parts then assembly of the machine.
- Integrating of a weigher machine to the top of the
bag-filling machine.
Control system
-Removing old control system and
integrating a PLC and a control panel
-Programming the PLC (Delta type) with Ladder
diagram.
Knowledge
Languages
French
and Arabic: Native languages.
English: fluent, TOEIC 890/990 Test of English for
International Communication.
Spanish: Intermediate.
Automation
- Labview,
Matlab Simulink
-Programming DSP Controller TMS320LF2407.
-Programming in languages:
assembler, C.
- PLC Programming (Crouzet, Delta, tlmcanique, Moller) -Ladder, List,
Grafcet-
-Controlled systems: Continuous aspect
Electronics
-Programming in
VHDL.
-Programming of PIC 16F87X.
-Simulation (Simplorer, Circuit maker, Electronic
Workbench, Proteus, Kicad).
Electrical
- Machines D.C. current, synchronous,
asynchronous, electrical supply networks.
Various
- CAD: AutoCAD, Autodesk
Inventor, Mastercam, Programming of machines with numerical control CNC (languages Num, Fanuc,
Fagor).
-CAM: Ms-Project (Gantt, Pert, Kanban)
Message Edité par salimo le 11-04-2009 04:35 PM
~~~~~~~~~~~~~~~~~~Looking for a LABVIEW JOB (In EUROPE)>~~~~~~~~~~~~~~~~~~
**The Best Way To Predict**The**Future Is To Invent It**
Attachments:
CV_Salim_Darwiche_S_12_10_09.doc ‏77 KB
CV_SalimDARWICHE_EN_S.doc ‏229 KB

Message Edité par salimo le 11-04-2009 04:36 PM
~~~~~~~~~~~~~~~~~~Looking for a LABVIEW JOB (In EUROPE)>~~~~~~~~~~~~~~~~~~
**The Best Way To Predict**The**Future Is To Invent It**

Integrating with external access control system

Hi,
I am new at the network but have read a lot recently about the above subject as much as I could. However, I am a bit mixed up at something. I understand in order to update SAP HR module with employees time and attendance logs I need to interface with a certified PDC interface => (SAP ECC - PLANT DATA COLLECTION - TIME & ATTENDANCE AND EMPLOYEE EXPENDITURES (HR-PDC)
I wish to develop a system that updates the the SAP HR with employee attendance logs. In addition I also wish enroll new employees into my access control system database by polling the SAP HR database.
Now my question is if I use .NET connector:
1. Does the connector it include functions that can help with the above requirements?
2. Is the use of PDC interface here still a must?
Thanks

For time management with the help of transaction pt80 you can download the information about employees with the help of idoc. And there are some programs a.k.a connectors that link access control systems and SAP so that you do not hire the same employee in the access control problem. You hire the employee in SAP and SAP sends the information (HR Minimaster DATA) to the related program.
It is also do the same thing for the employees who resign. I mean if an employee is fired or resigned from the company than it is sent to the related system.
These can be found under PDC integrated systems. You can find information about the systems from Ecohub. http://ecohub.sap.com/
I hope this answer will help.

Cisco Wireless Control System need wireless Lan Controller ?

Cisco Wireless Control System need wireless Lan Controller , for Rogue detection

Hi Joao,
The WCS is used in conjuntion with the WLC (Wireless Lan Controller) for Rogue Detection. It is not a must for this function but more of an add-on :)
The Cisco WCS is an optional network component that works in conjunction with Cisco Aironet Lightweight Access Points, Cisco wireless LAN controllers and the Cisco Wireless Location Appliance.
From this doc;
http://www.cisco.com/en/US/products/ps6305/index.html
Overview of WCS
The Cisco Wireless Control System (WCS) is a Cisco Unified Wireless Network Solution management tool that adds to the capabilities of the web user interface and command line interface (CLI), moving from individual controllers to a network of controllers. WCS includes the same configuration, performance monitoring, security, fault management, and accounting options used at the controller level and adds a graphical view of multiple controllers and managed access points.
WCS runs on Windows 2003 and Red Hat Enterprise Linux ES 4.0 and AS 4.0 servers. On both Windows and Linux, WCS can run as a normal application or as a service, which runs continuously and resumes running after a reboot.
The WCS user interface enables operators to control all permitted Cisco Unified Wireless Network Solution configuration, monitoring, and control functions through Internet Explorer 6.0 or later. Operator permissions are defined by the administrator using the WCS user interface Administration menu, which enables the administrator to manage user accounts and schedule periodic maintenance tasks.
WCS simplifies controller configuration and monitoring while reducing data entry errors with the Cisco Unified Wireless Network Controller autodiscovery algorithm. WCS uses the industry-standard SNMP protocol to communicate with the controllers.
From this good doc;
http://www.cisco.com/en/US/products/ps6305/products_configuration_guide_chapter09186a00806b7270.html#wp1131195
Detect and Locate Rogue Access Points
From this WCS doc;
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_tech_note09186a00806f070a.shtml#new5
Rogue Detection under Unified Wireless Networks
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_white_paper09186a0080722d8c.shtml
Hope this helps!
Rob

Budget and budget control system

what is the differnce between budget and budget control system. is it possible in sap each po (purchase order) wise budget.if its possible in sap please provide config steps.

Hi, guy
In SAP, we can use IO, PS, FM to make the budget. The budget control system is a sub-module of FM. If you want to get some config step, please kindly refer SAP Best Practises.

Budget Control System in SAP

Hi,
I want active Budgeting Control system in SAP. Please let me know how I can activate, from first step to last step. Please help me.
Thanks & Regards,
Hemant Maurya

Hi,
For activating Budgeting
In OKKP activate the Order management active for the budgeting in orders
Commitment mangement active for the commit manaement active.
Activate which all the area you want budgeting,Ex Projects,Sales order,costing object.
Define Budget profile in OKOB.
IN KOAB maintain the assignmnet of budget profile to order types.
IN KOAO activate the commit management check box against the order types.
Define the tolerance limit for the budgeting.
Maintain number range in OK11.
Now create any internal order & assign budget in KO22 transaction,check the same.
Regards,
Raj.

LabView Control System Engineer Job Opening - Seattle

LabView Control System Engineer Job Opening - Seattle
Seattle Safety is looking for a qualified individual to fill an
opening for Software Controls Engineer. Seattle Safety designs,
manufactures, and installs advanced crash test sled systems that are
used in automotive and aeronautical industries. The duties of the
Controls Engineer include:
Maintain existing control software code base, written in LabVIEW (including the Real-Time Module).
Improve existing software based on requirements and requests from customers and colleagues.
Troubleshoot and repair any functional software bugs that may arise.
Continuously investigate opportunities for system improvement through new or alternative hardware or software approaches.
Support installations of crash test equipment at on-site locations worldwide.
Provide technical support for team members locally and abroad
in subject matters concerning performance, installation, and
maintenance of software and data acquisition hardware.
Maintain professional relationships with suppliers and vendors in order to keep up with industry developments.
Furthermore, the ideal candidate would possess the following skills:
Beginner-to-intermediate knowledge of LabVIEW.
Passing understanding of binary logic.
Familiarity with at least one low-level programming language (Assembly, C, COBOL, etc)
Ability to analyze empirical data against theoretical predictions to enhance and improve mathematical model of system.
Familiarity with data acquisition concepts and hardware.
Ability to troubleshoot electrical and electronic systems at the module and equipment level.
Discipline and organization with respect to software
maintenance and version management. Experience with source
configuration management tools a plus (CVS, ClearCase, Perforce, etc.)
Experience with sophisticated high-speed feedback control systems
General skills in areas such as frequency domain analysis,
systems analysis, digital filtering, and both linear and non-linear
signal processing.
BSCS, BSEE, or BSCmpE are preferred but not required depending on experience.
Ability to work both alone and with colleagues to solve problems and to weigh the merits of differing approaches.
Pay is commensurate with skills and qualifications of the applicant.
Contact:
Seattle Safety
John Covey
(253)395-4321
822 3rd Ave S
Kent, WA 98032
[email protected]

Dear Sir / Madam,
I am an experienced engineering professional skilled in Post Silicon Validation by Automating using LabVIEW, Power Measurements, Jitter Measurement & Analysis, Audio Characterizations, Silicon Validation Test Cases, Multi-Channel Data acquisition and Triggering using NI DAQ Cards, Control Systems, Serial Communications using VISA and Serial I/O Interface, Code Native Interfaces, Call Library functions to interface with third party and custom dlls, ATMEL and PIC Micro Controller programming, Temperature Controllers like Honeywell, ESPEC-641, TestEquity 115, Hand held terminal programming to drive servo motors, C/C++/VB Programming for developing embedded applications.
Good experience on Windows API, protocol implementations, ARM11 & ARM7TDMI on-chip programming using Register Map and Pinout Specs using C/C++ Metrowerks Code Warrior and MULTI-ICE for ARM Debugger.
Looking for L1/H1 Job
Thank you for your time and consideration.
Please find an attachment of my resume in MS-Word format.
Sincerely yours,
K.Sowjanya. B.Tech
Message Edited by Support on 04-04-2008 08:39 AM

High-Level LabView Control System Engineer Job Opening - Seattle

High-Level LabView Control System Engineer Job Opening - Seattle
Seattle Safety is looking for a qualified individual to fill an opening for Senior Software Controls Engineer. Seattle Safety designs, manufactures, and installs advanced crash test sled systems that are used in automotive and aeronautical industries. The duties of the Controls Engineer include:
Maintain existing control software code base, written in LabVIEW (including the Real-Time Module).
Improve existing software based on requirements and requests from customers and colleagues.
Troubleshoot and repair any functional software bugs that may arise.
Continuously investigate opportunities for system improvement through new or alternative hardware or software approaches.
Support installations of crash test equipment at on-site locations worldwide.
Provide technical support for team members locally and abroad in subject matters concerning performance, installation, and maintenance of software and data acquisition hardware.
Maintain professional relationships with suppliers and vendors in order to keep up with industry developments.
Furthermore, the ideal candidate would possess the following skills:
Intermediate-to-advanced knowledge of LabVIEW.
Ability to analyze empirical data against theoretical predictions to enhance and improve mathematical model of system.
Familiarity with data acquisition concepts and hardware.
Ability to troubleshoot electrical and electronic systems at the module and equipment level.
Discipline and organization with respect to software maintenance and version management. Experience with source configuration management tools a plus (CVS, ClearCase, Perforce, etc.)
Experience with sophisticated high-speed feedback control systems
General skills in areas such as frequency domain analysis, systems analysis, digital filtering, and both linear and non-linear signal processing.
BSEE, BSME or BS Physics may be a good fit, but not limited to these areas.
Ability to work both alone and with colleagues to solve problems and to weigh the merits of differing approaches.
Pay is commensurate with skills and qualifications of the applicant.
Contact:
Seattle Safety
Tom Wittmann
(253)395-4321
1222 6th Av N
Kent, WA 98032
[email protected]
Attachments:
ServoSled Brochure.pdf ‏1215 KB

Dear Sir / Madam,
I am an experienced engineering professional skilled in Post Silicon Validation by Automating using LabVIEW, Power Measurements, Jitter Measurement & Analysis, Audio Characterizations, Silicon Validation Test Cases, Multi-Channel Data acquisition and Triggering using NI DAQ Cards, Control Systems, Serial Communications using VISA and Serial I/O Interface, Code Native Interfaces, Call Library functions to interface with third party and custom dlls, ATMEL and PIC Micro Controller programming, Temperature Controllers like Honeywell, ESPEC-641, TestEquity 115, Hand held terminal programming to drive servo motors, C/C++/VB Programming for developing embedded applications.
Good experience on Windows API, protocol implementations, ARM11 & ARM7TDMI on-chip programming using Register Map and Pinout Specs using C/C++ Metrowerks Code Warrior and MULTI-ICE for ARM Debugger.
Looking for L1/H1 Job
Thank you for your time and consideration.
Please find an attachment of my resume in MS-Word format.
Sincerely yours,
K.Sowjanya. B.Tech
Message Edited by Support on 04-04-2008 08:39 AM

Budgetry Control System

Hi
We have a requirement for mapping Budget for different Expenses for various Cost Centers. The system should do a availibility check for the budgets. However, the system just gives a variance between planned and actual data in system. How can the same be mapped .
Regards
Vaibhav

Hi,
Yes. What u said is Passive budgetary control in Controlling. If you want active BCS, you need to go for a workaround where along with cost center, a statistical internal order shall also be utilised to capture the costs. Then the statistical order shall have availability control to give warning and error message if the plan value exceeds.
If you want fullfledged BCS, you need to implement Funds Management where you can have Gl level you can Availability control. If you need more inputs, let me know.
Trust this helps much!
Cheers!

Budget Control System Configuration

Hi,
Please let me know how to configer Purchasing Budget, Overheads budget, sales budget, production budget and capital budget.
Regards
SAPCO

Dear NRSAPCO,
We can create budget either for cost centers or internal orders, generally. But if you wants to get more as Budgetory control system u must go to Fund management.
Even in Cost center budgeting u can only create Budgets and at the end of the period u can get Actual Vs budgetted figures report. but u cont get any "Trigger" if u r actual figure (of a cost center) exceeds Budget figure.
Where as in internal order u get get this trigger and u need to create subsequent budget (increasing the amont of budget) to get entry posted.
Thank you

Can i use NI-7358 to implement a hybrid position force/torque control system?

Hello!
I have a manipulator with 5 joints. I will use the NI-7358 motion control card to control them. In my application i also want to implement a force control system by using a force/torque sensor.
Question:
Is it possible to use the NI-7358 to implement a force/torque control system? Can i use the analog input channel of the NI-7358 as the force feedback? How is the torque exactly controlled with this card? Do I need buy other hardware to realize the hybrid force/position control?
Thanks a lot!
WLAN

wlan wrote:
thank you Jochen, i have two ways to get the torque values for each axis: 1. by using a force-sensor on each axis. (direct, very precise) 2. by using the Jacobian of my manipulator structure to calculate the torques (indirect, not precise, maybe correction needed) do u mean i must use option "1" as feedback (hardware dependent)? (JK:
yes, that's the only option with the 7358. The other option will
require the use of another approch like LV RT or LV FPGA as discussed
before) how can i increase or reduce the torque when i use the force-feedback and the NI PCI-7358? (JK:
please refer to the document about analog feedback that I have attached
to my first answer. With analog feedback you can set torque values
exactly the same way as you set target positions).
still a question: the motors that i am using are: Motor: 3x Faulhaber 3564 024B DC-Servomotor 2x
Faulhaber 2036 012B DC-Servomotor Encoder: 1x HEDM 5500 B14 can i use the Faulhaber BLD 5606 http://www.faulhaber.de/zip_pdf/produkte/kat_2000/10_steuerungen/dBLD5603_06.pdf Motor Driver with the NI PCI-7358 together (with UMI)?
(JK:
The PDF doesn't contain a schematic of the pinout but telling from the
table this combination should work. Please make sure that you limit the
output voltage of the 7358 to +-5 V as this is the voltage input range
for the command input of the BLD 5606. This can be done in MAX)
Can u take a look? Thanks for your help! WLAN

Reduced Order (Luenberger) Observer in Control Systems

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