INSTALLATION AND COMMISSIONING OF 6RA70 DIGITAL DC DRIVE FOR INDUSTRIAL MACHINE TOOL APPLICATIONS (BHEL PROJECT)

ABSTRACT

                   In industrial applications, machine tools make use of motors for axis feeds and spindle rotation applications. Generally, DC motors are used for this purpose. The speed of these motors is controlled in conventional methods i.e. Ward-Leonard system, multiple voltage control method, rheostatic control method etc. However, these methods are analog in nature and are obsolete now which offer a number of limitations like less reliability, less stability, less maintainability, poor system response etc. These limitations result in more cycle time of production and less productivity. These can be overcome by replacing the conventional methods with microprocessor controlled digital DC Drives. This project gives such an application for DC motor speed control (for axis feed and spindle rotation) on many of the machines at BHEL, Hyderabad. Some of the advantages for using such drives for various purposes are discussed at the end of the project.

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SIMULATION OF VARIABLE LENGTH FFT PROCESSOR USING VERILOG

Abstract

   In this project we have implemented an efficient variable length FFT Processor suitable for multi-mode and multi-standard OFDM (Orthogonal Frequency Division Multiplexing) Communication systems.  

           

            The FFT Processor is based on radix – 4 DIF FFT algorithm and also supports non-power-of-4 FFT computation. The design contains an efficient processing element (PE), which can execute radix - 4 butterfly (BF) operations, as well as radix – 2 butterfly operations. Moreover, in order to achieve high performance variable-length FFT operations and data accesses, an efficient variable-length address generator has been designed. The design has the merits of low complexity and high speed performance.

            The designs consider seven different FFT lengths including 64, 256, 512, 1024, 2048, 4096, and 8192 points, which cover all the required FFT lengths by 802.11a, 802.16a, DAB, DVB-T, VDSL and ADSL. The proposed FFT processor was implemented using verilog.

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SIMULATION AND SYNTHESIS OF AN EFFICIENT 32 BIT LOSSLESS COMPRESSION METHOD USING VHDL

 Abstract: 

With  the  increase  in  silicon  densities,  it  is  becoming  feasible  for  multiple compression systems to be implemented in parallel onto a single chip. A 32-BITsystem with  distributed memory  architecture  is  based  on  having  multiple  data compression  and decompression  engines  working  independently  on  different  data  at  the  same  time.  This data is stored in memory distributed to each processor. The objective of the project is to design a lossless parallel data compression system which operates in high-speed to achieve high compression rate.  By using Parallel architecture of compressors, the data compression rates are significantly improved. Also inherent scalability of parallel architecture is possible. The  main  parts  of  the  system  are  the  two  Xmatchpro  based  data compressors  in parallel  and  the  control  blocks  providing  control  signals  for  the  Data  compressors, allowing appropriate control of the routing of data into and from the system. Each Data compressor can process four bytes of data into and from a block of data every clock cycle.  The  data  entering  the  system  needs  to  be  clocked  in  at  a  rate  of  4n bytes every clock cycle, where n is the number of compressors in the system. This is to ensure that adequate data is present for all compressors to process rather than being in an idle state. 

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SIMULATION & SYNTHESIS OF DIGITAL FM RECEIVER PROJECT

Abstract

The design of the All Digital FM Receiver circuit in this project uses Phase Locked Loop (PLL) as the main core. The task of the PLL is to maintain coherence between the input (modulated) signal frequency, iω and the respective output frequency, oω via phase comparison. This self-correcting ability of the system also allows the PLL to track the frequency changes of the input signal once it is locked.

Frequency modulated input signal is assumed as a series of numerical values (digital signal) via 8-bit of analog to digital conversion (ADC) circuit. The FM Receiver gets the 8 bit signal every clock cycle and outputs the demodulated signal.

In the new architecture we propose improvement of the new architecture of digital FM demodulator. This work enhances signal quality, system clock frequency, and superior than well known PLL technique today.

The All Digital FM Receiver circuit is designed using VHDL, then simulated and synthesized using Modelsim SE 6.3f simulator and Xilinx ISE 9.2i, respectively. FPGA implementation also provided, here we use Spartan 3E device. 

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SIMULATION AND SYNTHESIS OF ADVANCE ENCRYPTION STANDARD ALGORITHM

ABSTRACT

This paper presents a high speed, fully pipelined FPGA implementation of AES Encryption and Decryption (acronym for Advance Encryption Standard, also known as Rijndael Algorithm).The implementation of AES has been made both in sequential and pipeline architectures and we are able to compare the results as an area time trade-off. In sequential architecture, the design occupies 2744 CLB slices and achieved a throughput of 258.5 Mbits/s and there is no use of extra memory resources like FPGA BRAMs. On the other hand, our pipeline design occupies a total of 2136 CLB slices and achieved a throughput of 2868 Mbits/s. Both designs were realized on VirtexE family of devices (XCV812). The performance figures achieved by our implementations are not only efficient in terms of throughput but also area occupied by them are among the most economical reported up-to-date.

AES has a fixed block size of 128 bits and a key size of 128, 192 or 256 bits, whereas Rijndael can be specified with key and block sizes in any multiple of 32 bits, with a minimum of 128 bits and a maximum of 256 bits. AES operates on a 4×4 array of bytes, termed the state. For encryption, each round of AES (except the last round) consists of four stages. a) SubBytes - a non-linear substitution step where each byte is replaced with another according to a lookup table (known as S Box). b) ShiftRows - a transposition step where each row of the state is shifted cyclically a certain number of steps. c) MixColumns - a mixing operation which operates on the columns of the state, combining the four bytes in each column using a linear transformation. d) AddRoundKey - each byte of the state is combined with the round key; each round key is derived from the cipher key using a key schedule.

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Security integrated system based on wireless access protocol for industrial applications with SMS Alert System using GSM Modem

ABSTRACT:

Security is primary concern for every one. This Project describes a design of effective security alarm system that can monitor an industry with eight different sensors. Unauthorized access, Fire accident, wall braking, IR detection, and fire detection can be monitored by the status of each individual sensor and is indicated with an LED. This LED shows whether the sensor has been activated and whether the wiring to the sensor is in order. Obviously, this burglar alarm also has an input to 'arm' the alarm, a tamper input and a couple of outputs to control a siren and Auto dialing system. The alarm is also fitted with a so-called 'panic button'.

The burglar alarm is built around the AT89C51 micro controller from Atmel. This micro controller provides all the functionality of the burglar alarm. It also takes care of filtering of the signals at the inputs. Only after an input has remained unchanged for 30 milliseconds, is this new signal level passed on for processing by the micro controller program. This time can be varied by adopting small changes in the source code.

A maximum of 8 sensors can be connected to the burglar alarm. A power supply voltage of +5 VDC is available for each sensor at the corresponding wiring terminals. Eight LEDs indicate the status of the corresponding sensors. When the alarm has been activated, the LED of the sensor that caused the alarm will light up, or flash in the event of a cable failure.

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ieee projects for ece, project for ece

TITLE:

REALTIME OBJECT DETECTION FOR UNMANNED AERIAL VEICHELE BASED ON FPGA VISION PROCESSING SYSTEM

ABSTARCT

  

   Unmanned Aerial Vehicles (UAV’s) are becoming more predominant in modern reconnaissance in both military and civilian applications. Object identification and tracking are typical elements of most missions [1]. While large and expensive UAV’s operate in many theatres, there is a need for local intelligence gathering using small, low cost and often disposable UAV platforms. In many situations it may not be practical or desirable for the UAV to be relaying information to the ground via radio link. Similarly, waiting upon ground based control for instruction may also limit the usefulness of a UAV. While ground based control is common, full autonomy allows a UAV to operate beyond the range of human intervention. In such cases, the UAV must be capable of making decisions for itself based on information gained from its surroundings.

                This paper discusses the development of a vision processing system for a low-cost UAV with a total flying weight of under 3kg. The system has currently been tested using simulated and real aerial footage with a mission to detect the presence of cars and land vehicles in the field of view. Experiments were conducted using actual FPGA based hardware.

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ieee projects for ece, project for ece

Title:

parking gate by ir

ABSTRACT

           

            Wireless communication, as the term implies, allows information to be exchanged between two devices without the use of wire or cable. A wireless keyboard sends information to the computer without the use of a keyboard cable; a cellular telephone sends information to another telephone without the use of a telephone cable. Changing television channels, opening and closing a garage door, and transferring a file from one computer to another can all be accomplished using wireless technology. In all such cases, information is being transmitted and received using electromagnetic energy, also referred to as electromagnetic radiation. One of the most familiar sources of electromagnetic radiation is the sun.

            In this project the InfraRed is used to control the parking gate. An InfraRed transmitter is installed in the owner’s car and a receiver is installed on the parking gate. When the owner reaches home, InfraRed transmission and reception will be detected by the microcontroller and it gives the appropriate command to open the gates automatically so the Car can enter the building without any involvement of physical action of human being to open the gates.

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ieee projects for ece, project for ece

Title:

MICROCONTROLLER BASED AUTOMATION

  

ABSTRACT

At homes, there will be various appliances to be operated according to our requirements and also based on the device’s constraints. For these purposes, a person should be employed to monitor the status of the loads. But there may be chances that the person may forget to operate these loads. And also it is not an easy task for a person to operate these loads manually as these loads run with high currents and high power consumption. This project gives the best solution for electrical power wastage. Also the manual operation is completely eliminated. This project does this application using wireless concept. One of wireless communication system is RF (Radio frequency) communication system as it is very cheap and very easy   to implement. 

The loads like lights, motors, heaters, power controlling system and also current through the loads can be controlled in this project. We can control all loads at a time from one place (control room) without connecting any physical wire between loads and control room.

IR remote acts as the transmitter in this project. When a button is pressed in the remote, the signal will be passed and received by the IR receiver TSOP Receiver. This signal is sent to the microcontroller which decodes the signal and performs the corresponding action in accordance with the button pressed in the remote. For example, if number 1 is pressed in the remote, the load will be switched on/off according to the user requirement. The other tasks will be performed in the similar fashion using IR.

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