Category: Electronics Abstracts

B.tech electronics and electrical final year and third year students can select best electronic project with full project report for free download. Students can find latest electronics abstracts for mini and major projects. Project reports helps students to get over view for implementing project.

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Wireless Data Transfer Using RF Communication Project Report

Introduction to wireless data transfer:

To meet the present day technology needs, data transfers at higher speeds are to be achieved which is possible by RF communication. Wireless Data Transfer Using RF Communication Project Report elaborates the working model of RF communication techniques for data transfer. In this we find transmitter section and encoder and decoder are used for the processing of original data.

AT89C52 microcontroller is used for monitoring of the components. The programming part is designed using keil software. The transfer from the  pc to controller is done using max 232 cable.

Working process:

The data is transmitted serially from pc to the controller is done using max232 cables. The encoder, encodes the data and is transmitted by using a RF transmitted from  the transmitter circuit. The transmitted data is caught hold at the receiver circuit and is receiver circuit and is decoded by using the decoder and the decode data Can be seen in the LCD.

The circuit works on the +5v RPS. We will use TX433 and RX433, for transmission and reception of the RF signals. The software part is programmed in keil software depending upon the program the microcontroller works.

The AT89C52 micro controller has reusable flash memories which are an added advantage. The operating frequency of transmitter and receiver of RF module is about 433mhz.

 

Applications and Future-scope:

The technology has growing applications for transfer of data in banks and industries and companies. The use of RF transmission the data transfer rates are low and in the ongoing process we can achieve higher data rates by employing data compression techniques.

Download Wireless Data Transfer Using RF Communication Project Report.

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Un interruptible Power Supply Project Circuit

Introduction to uninterruptable power supply:

Un interruptible Power Supply Project is an electrical appliance which provides an emergency power to the main power supply when a breakdown occurs. Depending upon the requirement the ups are designed for low voltage and high voltage equipments. The main aim of the UPS is to provide a short duration of power supply so that the intended device can properly shutdown.

Working process:

The ups employs a double conversion method in which ac power coming from the grid is converted to DC current and at the same time it is passed through a rechargeable battery. When the breakdown occurs the battery power is supplied to the main power supply. Sometimes these are provided with diesel generators for longer duration of power supply. The time taken for the offline or standby ups to switch to battery power supply is around 25milli seconds.

Types of UPS:

We also use line iterative ups to overcome the under voltage break downs and over voltage surges. The line iterative ups are mainly useful for conserving the limited battery power. The online ups are similar to that of line iterative ups , but it has less voltage fluctuations and larger battery time for hours together, these rare mainly used in industries. The other type is hybrid topology or double conversion which switches to double conversion mode without using the battery power when the voltage fluctuations are beyond the limit. The rotary ups are used in industries where the power values are about 10000 watts. The ups acts as a power source during the time of power failures thus protecting device from shutting down in working mode.

Download Un uninterrupted Power Supply Project Circuit and Report.

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Regulated Power Supply Using LM317 Project Report

Introduction:

This paper mainly emphasis on the working of LM317 regulated power supply. LM317 can be the best option for providing protection to the complicated complex circuits. LM317 is a three terminal adjustable voltage regulator. This type of voltage regulators have output voltage in the range of  1.2 to 5.7volts and output current in the range of 0.1 to 1.5amperes. It has a capacity to develop a reference voltage of 1.25volts between the a adjustable terminal and output.

Regulated Power Supply Circuit design Using LM317:

The 230V AC coming from the grids is fed to step down transformer through a on off switch and 500ma fuse. The 30v AC output coming from transformer is converted to DC current by using Bridge rectifier. To eliminate the remaining AC components we need to filter  it by using 2200mf capacitor and the capacitor output is fed to LM317 regulator , where the voltage is adjustable in between 1.2 to 30volts, which is varied by using a 5k potentiometer. To protect the circuit from reverse currents a feedback is given by using a diode. By the addition of diodes and capacitors it acts as a protective circuit.

Future scope:

There are certain future prospects, one of them is noise effect of the circuit which is to be overcome so that we can get an error free output voltage. Thus we can conclude that by completely we can design a highly efficient power supply which gives protection to complex circuits from getting damaged.

Download Regulated Power Supply Using LM317 Project Report.

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Laser Guided Appliance Control Project Report

Introduction to laser guided appliance control:

In today’s growing technological developments there are  many available techniques for controlling appliances. In Laser Guided Appliance Control Project Report we will use laser diodes for controlling of appliance. The controlling of the appliance is possible by light intervention method. In this a automatic door opening system is designed which works on a laser. The output of this device is fed to relay which connects dc motor which opens the gate.

Circuit description and working:

A laser pointer or a laser diode can be used for the generation of laser light. The overflow currents coming to the laser are controlled by a combination of resistor and diode. A photo transistor is used which works in forward and reverse bias according to laser light intervention.  An IC(dd4538) is used around which a monostable mutivibrator is built which generates a high going pulse. The photo transistor will be in forward bias as lomg as the light falls on the transistor , if the light beam is interrupted the transistor goes to reverse bias condition.  The  ic calculates the interrupted time and then generate the signal pulse which drives the relay of the motor to open the door. A peizo electric buzzer is connected to the circuit which gives an alarm when the door opens. The laser bam has to be fixed in such a way that it falls continuously on the photo transistor.

Applications and advantages:

This type of devices can be used for designing security alarm systems. These can be used for design of home automation devices. The devices can also be designed by employing sensors, but the cost becomes high and it has some drawbacks.  The laser works effectively in giving responses but the light beam should be protected from disturbances due to external factors. 

Download Laser Guided Appliance Control Project Report.

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Wireless Controlling For Robot Using RF Project Report

Wireless Controlling For Robot Project Introduction:

The proposed work is to design a system for wireless controlling for robotic machines Using RF in industries. In this we are using RF communication for wireless transmission. Because the signals does not get disturbed due to interfaces and noise components , which is important factor for sending signals , otherwise wise if delay occur in the transmission lot of damage may happen. A 89C52 micro controller is used for monitoring the  entire process. A wireless camera is provided so that the user can look the moments and accordingly he can give messages.

Circuit design ;

The design consists of an receiver unit and a transmitter unit. The transmitter unit consists of an AT89C52 microcontroller to which RF transmitter is connected and LCD is connected to see what is given. At the receiver unit a AT89C52 microcontroller is connected to which wireless camera and LCD and L293 drivers are connected to which motors are connected. The microcontroller is programmed using embedded c and entire process is done on keil software.

Working process:

Suppose if the user sends a message to move forward the message gets transmitted from transmitter unit and is received in the receiver unit , the microcontroller process the received message and give respective signal pulse to the relay drives which make the motors move according to the given message and user can see whether the message is performed or not.

Applications:

This type of system is very useful in industries, for monitoring the devices and persons can control the robot by sitting at any place. There are a very minute chances of going wrong due to bugs , if it happens the microcontroller automatically reboots .

Download Wireless Controlling For Robot Using RF Project Report.

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Insulation and Manufacturing Process Of 500mw Turbo Generator Bars Project Report

Introduction to Turbo generator:

A turbo generator converts the mechanical energy into electrical energy. A turbo generator is a turbine which is directly connected to electric generator for generation of electricity. Here the turbine is driven with an electric generator. The mechanical motion is created in the turbine by using heat , water vapor or nuclear power, the created mechanical motion is fed to the shaft of the turbo generator and this converts the mechanical energy to electrical energy.

Insulation and manufacturing process of turbo generators:

The turbo generator consists of coils which are made of copper. As the no of coils increases the speed of the turbo generator increases. The 500mw turbo generator consists of 42 coils. The coils are insulated by using nomex paper. This is supplied with a pressure of 480 tons. A exciter is of two different lengths are present . A hydro generator winding section is present in the generator which consists of permanent magnet generators. It is used as a exciter for the magnet. The turbo generator rotor  is filled with hydrogen gas which prevents the coils from decaying. The turbo generator operates at a frequency of 50hz. The rotor present inside the turbo generator rotates with a speed of 3000rpm. A certain number of tests like mechanical test and load test ,bearing test, OC test are performed before the turbo generator is released , in order to know output efficiency. The 500mv generator has a stator voltage of 21kv.

Areas of implementation:

The turbo generators are used in generation of power in power plants. It can be used in different kind of power plants like coal or nuclear or wind or hydro. Because the mechanical energy generate from any source is driven into turbo generator to generate electricity.

Download Insulation and Manufacturing Process Of 500mw Turbo Generator Bars Project Report, pdf,ppt.

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Water Level Indicator Minor Project

Introduction:

Water Level Indicator Minor Project aims at designing a water level indicator. A circuit is designed in such away that it indicates the level of water in the tank and gives an alarm when it is full. A CD4066 bilateral switch is connected to led to indicate water level. Certain no of electric probes are placed in the tank at certain heights for water level indication. When the water touches the electric probe the respective probe led glows. The alarm is produced by an peizo electric buzzer , which is connected to the last electric probe.

Working circuit design:

The entire circuit is designed on a bread board for the purpose of reusability, which is not possible with an soldiered board. Certain number of probes are connected to CD4066 bilateral switch and to this led is connected, when the water touches the probe the respective probe glows and at same time alarm blows. A 6V AC current is supplied to the probes, so that when the switch touches the probe it makes the switch on/off. The power supplied to the electric probe should be monitored because excess flow of current may cause electrolysis.

Applications and Future scope:

This is an effective system for knowing the level of water in the tank. This project can also be successfully implemented in minor and major projects for knowing the level of water. Instead of employing electric probes for knowing the level of water  we can also use the signaling method. The level of water is known by the time taken by the signal to come back.

Download Water Level Indicator Minor Project.

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Electronic Locker System Electronics Project Report

Introduction to Electronic locker system:

The aim of Electronic Locker System Electronics Project project is to provide effective security measures for the users. Here the user can open their respective lockers by the specified user id and password. The equipment of this system consists of barcode reader for identification of id cards and host computer is installed which monitors the entire system. The host computer is fed with the database of the users, so that when users enter their id’s it checks the details and allot the lockers.

Brief into the working:

The drop bolts are placed in the locker an a electronic switching device (Relay drivers) are connected to these bolts. The signals from the host computer to the these switching devices are carried out with an RS232 cable. First bar coder identifies the id cards and displays a screen for entering the user id and after this process it sends a signal to the switching device so that the specified locker bolt drops. As we find many lockers the signal is sent to the respective locker with a multiplexer. The entire system runs with a 12v dc power supply. The system is provided with back-up power supply to avoid break downs.

Applications and Future scope:

These type are lockers are very useful in providing security, and these lockers are controlled automatically which reduces man power. But the is a drawback that an person can open the lockers by giving the user id and password , as the system does not know whether is a right person or not. This can be overcome by making the authentication process with finger print scanner or an eye scanner, where these is no possibility of manipulating. Thus we can conclude that electronic locker systems are very useful in the modern days.

Download Electronic Locker System Electronics Project Report.

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Automated Multistoried Car Parking System Project Report

Automated Multistoried Car Parking System Project Introduction :

The best solution for today’s parking problems is automated multistoried car parking system which can be used in big companies and shopping malls where parking is provided in the floors. The main objective of this project is to make a effective use of the limited parking space and provide the exact location of the parking space for the drivers. The entire process is run on a 8051 microcontroller.

Working idea:

A display is providing in floors to know the count of the cars, so that the space can be allotted for the incoming vehicles. A lift is also available for carrying to the respective floors. A LED indicator is provide to the floors to know whether the lift is busy or free. A floor is reserved for VIP’s and they can come by entering their specified id. The microcontroller checks the id and the lift directly takes the vehicle to the respective VIP floor. A sensor is placed in each floor so that it senses the cars coming down and passes the information to the microcontroller. The microcontroller process the information and provides the lift . The information of the lift can be seen in the displays placed in the respective floors. When the lift is free it stops in the particular floor where the car is waiting. The working of the lift controlled by a stepper motor which is acts accordingly to the message given by the IC555 timer. The IC555 timer gets the message from the microcontroller.

Areas of implementation:

This working model can be effectively used in multi storied parking places where it is difficult for the human beings to monitor. This model can effectively work in such places and the vehicle owners do not go waste of time . There is a very unique situation where the remote system goes wrong.

Download Automated Multistoried Car Parking System Project Report.

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Remote Monitoring and Control project ECE Project Report

Remote Monitoring and Control project Introduction:

Remote Monitoring and Control project explains about the need of remote monitoring is that the administrator must have complete information of the process ongoing in a client system. So the concept involved is monitoring a system activity from anywhere with the use of internet. This is an application software which works simultaneously on both the systems. The application software captures the screen shots o the client system and passes it to the administrator. The TCP protocols are used for communication in between the client and the administrator system.

Working:

Sockets which are the main components used for the record oriented data flow. First the authentication process is made so as to maintain the id of each user. Data events are programmed for a sequential flow of communication. The captured screen is send to admin in the form of bitmap. The data is sent by using WSA send option and received by using WSA receive option. The keyboard and mouse events are programmed so as to make the instruction executed on the end system given by the admin. The total software program is written using c language. The end systems communication is maintained by network protocols. The GUI of the software is created using visual c++.

Applications and Future scope:

These are mainly used in network administration system for having a control and information of the end system. This software can run on multiple systems bust as the number increases the processing speed of the data gets reduced. This is to be overcome by employing certain data compression techniques in between the end systems.

Download Remote Monitoring and Control project ECE Project Report.