Design and Implementation of Unique National Identity Card Using RFID Technology-Electronics ProjectsPosted: March 8, 2012
The objective of this work is to design and implement centralized RFID based National Identity card management system using embedded microcontroller. In this electronics projects, the use of RFID (Radio Frequency Identification) technology can be employed for not only bringing down the costs but also facilitate automating and streamlining applicant identification processes in the following systems – Medical information , Passport Information Driving License Ration Card Information Voter ID Information.. The system implements an RFID reader interfaced with an embedded microcontroller to PC. The RFID system manages the details of the applicant like name, address, personal details, business/academic details etc for all the following applications Medical information, Passport Information Driving License Ration Card Information Voter ID Information. By this way the user can maintain a single RFID tag for all possible applications.
Electronics Projects Specifications
PC Interface : RS232
Embedded Processor : AT89C52
Embedded Firmware : Embedded ‘C’ – Keil IDE.
PCB : Trax Maker
Sensor : RFID Tag / Reader
Application Software : Visual Studio
Project Learning Outcome
- Embedded System Basics
- Microcontroller programming
- Firmware Development
- Hardware Design and Trouble Shooting
- Application Software Design
- PCB Fabrication
Renewable energy solutions are becoming increasingly popular. Photovoltaic (solar) systems are but one example. Maximizing power output from a solar system is desirable to increase efficiency. In order to maximize power output from solar panels, one needs to keep the panels aligne with the sun. As such, a means of tracking the sun is required. This is definitely a more cost effective solution than purchasing additional solar panels. It has been estimated that the yield from solar panels can be increased by 30 to 60 percent by utilizing a tracking system instead of a stationary array. In this electronics projects paper, a prototype for a microcontroller-based multi-function solar tracking system is described, which will keep the solar panels aligned with the sun in order to maximize efficiency. The maximum power point tracking (MPPT) data can be transmitted in real time to other solar systems in need of this data.
v 89C51 Microcontroller.
v Power Supply.
v ADC unit.
v DC MOTOR.
v SOLAR PANNEL
v Embedded C.
v KEIL Compiler.
PERFORMANCE OF POWER LINE COMMUNICATION SYSTEMS WITH NOISE REDUCTION SCHEME FOR SMART GRID APPLICATIONS-Electronics ProjectsPosted: March 8, 2012
X10 protocol is meant for data communication over the power line which carries 230V, 50 Hz Ac supply. Here we are going to use the power line in the industry for data acquisition purpose. This is an improvement of data communication over the power line.
X10 is an international and open industry standard for communication among electronic devices used for home automation, also known as domotics. It primarily uses power line wiring for signaling and control, where the signals involve brief radio frequency bursts representing digital information.Whether using power line or radio communications, packets transmitted using the X10 control protocol consist of a four bit house code followed by one or more four bit unit code, finally followed by a four bit command.
In this paper, we propose clipping scheme and equalizer as methods to reduce the effects of impulsive noise and channel attenuation in power line communication (PLC) system. Clipping is cutting off the amplitude of the received signal over threshold level without its phase change in order to reduce noise effects. The equalizer compensates for effects of PLC channel. The performance is evaluated in terms of bit error rate (BER). From simulation results, it is confirmed that the proposed clipping scheme has slightly better performance than conventional PLC system. The results of the paper can be applied to PLC systems for smart grid.
The device is a hardware interface that allows control data communication over the power line. Its purpose is that of translating the serial output provided by some digital service, like a microcontroller, into a coded pulse train that is suitable for being transmitted over the usual domestic power lines. Conversely, the interface is able to extract such messages from the power line and to convert them into serial streams that the connected digital device can read. The interface therefore acts like a modem, allowing the employment of the common electrical supply network of a building as a local area network.
When coupled with a programmable digital device, such as a microprocessor or a microcontroller, the device allows the realization of “intelligent” and “communicative” equipments that can interact with similar objects over a domestic network, without the need of installing a dedicating wiring. Typical applications are in the field of Home and Building Automation (management of surveillance and alarm systems, home appliances automation, AMR (Automatic Meter Reader), Home automation control, Security and surveillance, General-purpose isolated transceiver.
The innovative feature of these devices is that they transmit data on the power line, using the concept of conveyed wave (zero crossing).We use an 8051 based microcontroller the at89c51 for the transmitter and the receiver. From a keypad on the transmitter the relay section on the receiver can be controlled.
- 565 Tone Generator
- 555 Timer
- LM386 Amplifier
- Power Supply.
- UM91214 DTMF Encoder s
- UMC 8870 DTMF Decoder
- Isolation Transformer