Download - vensoft technologies safety of valuable items using zigbee and mems sensor

VENSOFT Technologies www.ieeedeveloperslabs.in Email: [email protected] Contact: 9448847874


SAFETY OF VALUABLE ITEMS USING ZIGBEE ANDMEMS SENSOR

ABSTRACT:

The main objective of this project is to develop an embedded system based anti

theft alarm based on MEMS sensor and zigbee technology. This project is implemented

on an avr based Atmega16 developed board interfaced with MEMS, Buzzer and LCD for

display purpose. Micro electromechanical systems (MEMS) is the technology of the very

small, and merges at the nano-scale into nano- electromechanical systems (NEMS) and

nanotechnology.

MEMS are also referred to as micro-machines or Micro Systems Technology -

MST. MEMS are made up of components between 1 to 100 micrometers in size and

MEMS devices generally range in size from 20 micrometers to a millimeter. They usually

consist of a central unit that processes data, the microprocessor and several components

that interact with the outside such as micro sensors. Due to MEMS large surface area to

volume ratio, surface effects such as electrostatics and wetting dominate volume effects

such as inertia or thermal mass.

This property is used to detect any motion or change in acceleration due to gravity

or simply called G force. The system needs to be secured and at the same time, should be

protective for valuable items such that no body can try to theft our valuable items. The

present project deals with designing an activation system for the protection of valuable

items by checking the change in G force. If motion or change is detected the protection

system is activated. The system uses a compact circuitry build around flash version of

amega16 micro controller with a non volatile memory Programs are developed

andcompiled using avr studoi4 tool. Isp is used to dump the code into micro controller.

This project uses regulated 5v, 750ma power supply. 7805 three terminal voltageregulator is used for voltage regulation. Bridge type full wave rectifier is used to rectifythe ac output of secondary of 230/18v step down transformer.



BLOCK DIAGRAM: TRANSMITTER

POWER SUPPLY:

MICROCONTROLLER

LCD DISPLAYMEMS

SENSOR

ZIGBEE

MAX232

ALARAM

STEPDOWN

T/F

RECTIFIER FILTER VOLTAGEREGULATOR

ADC



BLOCK DIAGRAME: RECEIVER

PC MAX232 ZIGBEE



SOFTWARE:

EMBEDDED ‘C’

RIDE TO WRITE CODE

ISP TO BURN THE CHIP

KEIL COMPILER.

HARDWARE:

Atmel BASED OUR OWN DEVELOPED BOARD

POWER SUPPLY

MEMS SENSOR

ADC

LCD DISPLAY

BUZZER

MAX 232

ZIGBEE PROTOCAL



ADVANTAGES:

Safe and secure Easy to use We can communicate base station up to 100 meters.

APPLICATIONS:

Apartments Industries& companies Security places