RFID Based Shopping Trolley Project

The main objective of RFID based shopping trolley Project is to implement an RFID based security system to improve the speed of purchase. Recent years there are lot of changes occurred in terms of economic growth, living conditions, and global markets.

RFID Based Shopping Trolley Project Looks like:

In order fulfill these needs technology had come forward in implementing several automatic identification technologies and had caused a revolution in proving the quality of services. radio frequency identification technology is considered as the boon for the present day market in proving automatic identification facilities that helps in handling the goods and materials effectively.

RFID technology identifies the objects virtually unlike the bar code technologies, the phenomenon lies in the function of RFID tags in transforming data from the antenna i.e. coil to the reader.

By using RFID based shopping cart system project the security levels are increased, once the product is placed o the system it generates the summary of the inventory including the price value. And if any unbilled product is taken from the user it will alerts making continuous beep sound. The main components of this project are RFID tag, RFID reader, micro controller, driver circuit, alarm and relay. The block diagram representation is as shown in the below circuit.

Download RFID Based Shopping Trolley Project Report

RFID principles:

The RFID devices are mainly divided into two classes one is active and the other is passive. Active tags require a power source while the passive tag requires no batteries or external maintenance. The tag has of three parts namely antenna, a semi conductor chip attached to the antenna and encapsulation.

ECG Monitoring System Project

n this “ECG Monitoring System Project Report”, we presented a portable tele monitoring ECG based on Zigbee wireless communication module. The monitoring terminal will process the ECG signals and transfer it to the control system by means of Zigbee link.

Need of ECG Tele monitoring System:

  • In order to understand the patient condition effectively in remote locations.
  • Increasing efficiency in rescuing.
  • Monitoring the patient condition any tine and anywhere.
  • In order to achieve Medical device communication standards in storing the physiological information of the patient in previous conditions.
  • Utilizing telecommunication technology in medical diagnosis i.e. tele medicine.
  • Allowing a facility of healthcare to be administered outside a hospital.

System description:

The proposed Telemetry ECG Monitoring System had portable ECG terminal and the health monitoring center, the monitoring center is connected to the ECG by means of Zigbee communication module. And based on the signals from the ECG the patient gets treatment.

PIC MCU (Microcontroller Unit):

  The PIC16F877 is a low power high performance micro controller used in this project. The pin configuration and features of the micro controller is clearly explained in the below sections.

Download ECG Monitoring System Project Report

PCB fabrication:

The PCB fabrication involves the following process. Preparing a layout – copper clad sheet is cut – make relevant hole for terminals on the printed circuit board – cleaning – creating copper area using paints and acid resist inks – placing the components at the terminal holes – remove the un wanted materials – connect the wires at the pins – verification and testing.

Laser Torch Based Communication System

In  Laser Torch Based Communication System project we implemented a new generation “laser torch-based voice Transmitter and receiver” which is a good replacement for the present day communication systems.

Starting from the optical fiber communication wireless communication had taken several modifications recently laser based communication is gaining much attention in the field of space research and satellite communications.

Laser based voice transmitter and receiver:

Key points:

  • Laser torch acts as a carrier for the voice signal to be transmitted.
  • It is a wireless open channel system
  • Ability to transmit voice signals up to 500 meters.

Figure: block diagram representation of Laser Torch Based Communication System.

Condenser MIC:

Capacitor based electrostatic microphone, is a most sensitive for the low amplitude signals also. Its main function is to convert the audio signal into electrical signal. These are ideal for high volume work.

Youtube video link to view circuit diagram, block diagram.


Transmitter section:

The transmitter section is comprised of pre amplifier, operational amplifier, and heat sink for absorption of noise in the signal, VR, and laser diode.

Laser torch:

The laser torch acts as a medium for the laser. And it can transmit wavelength of range 780nm – 920nm.

Download Laser Torch Based Communication System Project Report 

Receiving section:

The receiver section of the laser communication system has photo detector for sensing the laser light, Audio amplifier for better audibility, common emitter amplifier and a loud speaker i.e. transducer.

Non Volatile Memory Technology Symposium

In our project non volatile memory technology symposium (OUM); we presented solution for the limitations facing by the modern day digital memory devices. Ovonics Unified Memory (OUM) is the most advanced technology which had unique abilities in proving High endurance, low power, nonvolatile RAM with high speed facilities.

Non Volatile Memory Technology Symposium

OUM is a non-volatile memory which stores memory by using chalcogenide materials. This material comes under VI elements of the modern periodic elements. It is an alloy consists of germanium, antimony, and tellurium used for the storage of data in memory devices.

Next generation memory devices:

Apart from many more memory technologies the semi conductor technologies are gaining enormous attention in providing reduced cost/bit storage devices. The mechanism in these OUM devices is a reversible structural phase-change mechanism from the amorphous phase to a crystalline phase in a thin-film chalcogenide alloy material. OUM technology implements the conventional CMOS process to form the thin-film memory element.

Data writing mechanism:

Primarily the alloy is heated up to its melting point and rapidly cooled for getting amorphous substance and to get crystalline substrate it get heated below the melting point and make to settle down the crystalline particles for 50ns, And then programmed the programming is done in OUM devices by electrically Altering the structure i.e. amorphous or crystalline, of a small volume of chalcogenide alloy. The memory state of the cell is determined by reading the resistance.

Download Non Volatile Memory Technology Symposium Report

Remote Controlled Fan Regulator Project Report

In this paper the remote controlled fan regulator project gives a better solution in order to access the electrical appliances in very quick time. Recently micro controller based automation strategies creating tremendous changes in this particular field.

Remote Controlled Fan Regulator

In present day industrial automation wireless technologies are playing a vital role in appliance control. Up to now they were several technologies were evolved in order to reduce the human efforts and controlling time.

The remote controlled fan regulator circuit diagram is shown below which consists of following major components.

About the circuit:

The circuit mainly consists of two sections one the transmitter section and the receiver section, the remote controller sends the infra red radiation beam at the transmitter section and the infra red sensor at the receiver end receives the regulated signal and then regulates the speed of the rotating fan at regular intervals at considerable rate of speed and good accuracy.

Youtube video link to view circuit diagram, block diagram.


Block diagram representation:

The prototype circuit consists of infra red receiver module with an infra red receiver which is capable of receiving signals up to 38 KHz. And an accurate pulse is derived from a mono stable multi vibrator, counter circuit with the power supply circuit, and the triac is driven by the opto isolator which is used to alter the analog and digital signals.

Download Remote Controlled Fan Regulator Project Report