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Totally integrated smart energy system through data acquisition via remote location

World Academy of Science, engineering and technology 2009年 38卷 1174-1177页

作者： Qadri, Muhammad Tahir Khan, M. Nawaz Irshad Department of Electronic Engineering Sir Syed University Of Engineering and Technology Karachi Pakistan

This paper discusses the approach of real-time controlling of the energy management system using the data acquisition tool of LabVIEW. The main idea of this inspiration was to interface the Station (PC) with the system and publish the data on internet using LabVIEW. In this venture, controlling and switching of 3 phase AC loads are effectively and efficiently done. The phases are also sensed through devices. In case of any failure the attached generator starts functioning automatically. The computer sends command to the system and system responds to the request. The modern feature is to access and control the system world-wide using world wide web (internet). This controlling can be done at any time from anywhere to effectively use the energy especially in developing countries where energy management is a big problem. In this system totally integrated devices are used to operate via remote location. © 2009 ***.

关键词： Data acquisition

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Analytical Study of MC-CDMA-TCM over Multi-path Rayleigh Fading Channels

Analytical Study of MC-CDMA-TCM over Multi-path Rayleigh Fad...

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International Conference on Computer engineering and Applications（ICCEA 2009）

作者： Samreen Amir Muhammad Asif Department of Electronic Engineering Sir Syed University of Engineering and Technology

The exponential growth of multimedia users demand fast data rates and reliable transmission which leads us towards fourth generation(4G) wireless *** recent years,the adaptive modulation based multi-carrier code division multiple access(MC-CDMA) systems captured maximum *** this paper MC-CDMA-TCM is tested over wireless fading *** objective of this research is to perform an analytical study of the MC-CDMA-TCM system to achieve theoretical BER curve.A conclusion is drawn on the basis of the outcomes of research which favors the system for better performance over Rayleigh fading channel but the increasing design complexity limits the system to use very high constellation orders.

关键词： MC-CDMA,Rayleigh fading channel

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Automated Profile Vehicle Using GSM Modem,GPS and Media Processor DM642

Automated Profile Vehicle Using GSM Modem,GPS and Media Proc...

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International Conference on Computer engineering and Applications（ICCEA 2009）

作者： Muhammad Tahir Qadri syed Shafi-Uddin Qadri Rafia Khalid M.Yasir Khan Department of Electronic Engineering Sir Syed University of Engineering & Technology

This paper discusses the implementation of the embedded system design to control automobile peripherals automatically through voice recognition *** user profile will be stored in the system which carries specific settings for the *** the user wishes to drive the car,system will activate the personal settings by recognizing the user's voice which includes setting of the side and rear mirrors and seat *** real time snapshot of the driver is also taken using DM642 media processor and displayed on the LCD screen with available profile *** smart car can also be remotely locked or unlocked using GSM *** feature of navigation and tracking of car using GPS module is also included in the *** system takes latitude and longitude positions from GPS and sends to the PC using GSM *** real time location of the car is further displayed on the map on PC.

关键词： Embedded Systems,Voice Recognition Systems,GPS,GSM Modem,Media Processor.

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System level designing of FSO link through LED and NRZ modulation scheme by using different filters

System level designing of FSO link through LED and NRZ modul...

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Mediterrannean Microwave Symposium (MMS)

作者： Naveed Ahmed M. Irfan Anis Farhan Department of Electronics Engineering Sir Syed University of Engineering and Technology Karachi Pakistan

Free space optics (FSO) communication provides an attractive solution to bridge the gap between the existing fiber optics infrastructure and the end user. This paper investigates the system level design link of FSO by using different filters for the reduction of noise and timing error. The use of FSO links has been proposed as a solution to the connectivity bottleneck problem which has arisen from the ever increasing demand for high bandwidth in different network topology. Transmitter consist of NRZ modulating LED with a wavelength of 1550 nm and using positive intrinsic negative type photodiode as a receiver, the link range is 450 meters. The result shows the response of timing error, zero crossing distortion and SNR by using different filters.

关键词： Light emitting diodes Optical signal processing Optical fiber filters Optical noise Optical transmitters Timing Optical distortion Optical filters Optical modulation Optical receivers

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Techniques for SPWM using LUTs on low-cost microcontrollers

Techniques for SPWM using LUTs on low-cost microcontrollers

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International Colloquium on Signal Processing & Its Applications, CSPA

作者： M. Irfan Anis Naveed Ahmed Muhammad Tahir Qadri Mubeen sirhindi Department of Electronics Engineering Sir Syed University of Engineering and Technology Karachi Pakistan

This paper examines the techniques which can be used to generate sinusoidal pulse width modulation (SPWM) utilizing minimal resources of a low-end microcontroller. Different techniques are evaluated, bit-banging look-up table (LUT) routines are advocated for certain purposes, programming algorithms are considered for efficiency, and methods of harmonic suppression are reflected upon. Finally, feedback methods are considered and a practical application is presented. This paper is targeted towards inverter and motor drives operating in H-bridge configuration. Microcontroller based voltage source inverters.

关键词： Table lookup Microcontrollers Pulse width modulation Pulse width modulation inverters Pulse generation Space vector pulse width modulation Harmonics suppression Feedback Motor drives Voltage

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Real Time Defense Communicator Using Video Processing, Bluetooth and GPS

Real Time Defense Communicator Using Video Processing, Bluet...

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International Conference on Signal Processing Systems, ICSPS

作者： Muhammad Tahir Qadri Muhammad Tayyab Department of Electronic Engineering Sir Syed University of Engineering & Technology Karachi Pakistan

The main idea of this work is to detect, place and explode mines and target killing of objects using real time video processing at country's border. For this purpose a Robo Car is designed. The theme is implemented for the armed forces to make them more equipped and advanced. The heart of the system is a PIC micro-controller (PIC16F877). It controls the whole system and sends data to the Personal Computer (PC). The wireless video camera is also connected with the PC for real time video processing. The PC also controls the placement, detection and explosion of the mines through stepper and DC motors connected with the Robo Car. The Global Positioning System (GPS) is also used to find the exact location of the car.

关键词： Bluetooth Global Positioning System Landmine detection Cameras Weapons Real time systems Object detection Image processing Computer displays Mathematical model

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Automatic Number Plate Recognition System for Vehicle Identification Using Optical Character Recognition

Automatic Number Plate Recognition System for Vehicle Identi...

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International Conference on Education technology and Computer, ICETC

作者： Muhammad Tahir Qadri Muhammad Asif Department of Electronic Engineering Sir Syed University of Engineering and Technology Karachi Pakistan

Automatic number plate recognition (ANPR) is an image processing technology which uses number (license) plate to identify the vehicle. The objective is to design an efficient automatic authorized vehicle identification system by using the vehicle number plate. The system is implemented on the entrance for security control of a highly restricted area like military zones or area around top government offices e.g. Parliament, Supreme Court etc. The developed system first detects the vehicle and then captures the vehicle image. Vehicle number plate region is extracted using the image segmentation in an image. Optical character recognition technique is used for the character recognition. The resulting data is then used to compare with the records on a database so as to come up with the specific information like the vehiclepsilas owner, place of registration, address, etc. The system is implemented and simulated in Matlab, and it performance is tested on real image. It is observed from the experiment that the developed system successfully detects and recognize the vehicle number plate on real images.

关键词： Character recognition Optical character recognition software Vehicle detection Image recognition Image processing Licenses Security Automatic control Control systems Government

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Design and performance analysis of OCDMA systems using different filters

Design and performance analysis of OCDMA systems using diffe...

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Mediterrannean Microwave Symposium (MMS)

作者： M. Irfan Anis Naveed Ahmed Saifuddin Department of Electronics Engineering Sir Syed University of Engineering and Technology Karachi Pakistan

OCDMA combines the large bandwidth of the fiber medium with the flexibility of the CDMA technique to achieve high speed connectivity. This paper presents the simulation module for OCDMA transmission and reception and demonstrates key function of simulation environment through representing schemes for various systems parameters. The proposed network permits high no of users to communicate with high data rate then the conventional OCDMA system. Analysis and Simulation confirm that the system constructed via this method is of minimum distortion and BER and will outclass the conventional OCDMA system.

关键词： Performance analysis Band pass filters Magnetic separation Insertion loss Attenuation Cutoff frequency Design optimization Matched filters Microwave filters Microstrip

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Medium Access and Flow Management in IEEE 802.11 and 802.11e WLANS

Medium Access and Flow Management in IEEE 802.11 and 802.11e...

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International Conference on Advanced Computer Control, ICACC

作者： Ammar Abbas Ibrahim M. Hussain Tauseef Mubeen Department of Computer Engineering Sir Syed University of Engineering and Technology Karachi Pakistan

With the increasing demand of multimedia services over internet and local area networks, techniques to provide better data rate, low latency and low packet loss have also emerged. For this reason, IEEE has introduced a standard for local area networks known as IEEE 802.11e. In this paper, we provide a comparative analysis of basic and new standard in terms of medium access technique and management of multiple flows. NS2 is used as a simulation tool and different traffic types like CBR, VBR and FTP are used to completely analyze the performance differences between two standards. The enhanced standard is found better in protecting and providing less delay in medium access to high priority flows.

关键词： Wireless LAN Local area networks Delay IP networks Web and internet services Analytical models Telecommunication traffic Traffic control Performance analysis Protection

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Voice Controlled Wheelchair Using DSK TMS320C6711

Voice Controlled Wheelchair Using DSK TMS320C6711

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International Conference on Signal Acquisition and Processing, ICSAP

作者： Muhammad Tahir Qadri syed Ashfaque Ahmed Department of Electronics Engineering Sir Syed University of Engineering and Technology Karachi Pakistan

The main idea of this inspiration is to process analog voice signal. The theme is implemented for the parallelized persons by voice activated wheelchair through speech processing using digital signal processor (DSP). The Texas Instruments TMS320C6711 DSP starter kit (DSK) is connected with the wheelchair for processing of the voice signal. The DSK calculates the energy, zero crossing and standard deviation of the spoken word. It also generates different desired analog signals according to the spoken words which further amplified and converted into digital. These digital signals are used to operate the stepper motor. Five words are recognized which are forward, reverse, left, right and stop. The results at the end show the efficiency of the system.

关键词： Wheelchairs Digital signal processing Speech recognition Mathematical model Signal processing Application software Humans Microphones Speech processing Digital signal processors

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