ZIGBEE BASED ASSET MANAGEMENT SYSTEM
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ZIGBEE BASED ASSET MANAGEMENT SYSTEM
INTRODUCTION:
This project is based on VTU syllabus. The proposed system is based on ATMEL 89S52 µ-controller, which is in our syllabus.
For doing this project we use some of the software like
 Embedded C for programming the application software to the microcontroller.
 Protel schematic software is used for designing the circuit diagram for this project.
 Express PCB software is used for designing the PCB for this project.
(Since PCB making is a big process and involves lot of machineries, which are expensive. So we are going to outsource this to the manufacture.)
ABSTRACT:
Nowadays it is difficult to manage the asset for example the vehicles in the showroom, when it has been sold or when it has arrived for service etc. By using zigbee it will be easy to handle such types of problems and the aim of this project is to maintain asset using zigbee.
TECHNOLOGY USED: Zigbee wireless technology.
PERCENTAGE OF SOFTWARE AND HARDWARE USED:
Embedded C: 40%
Visual Basics: 10%
Hardware: 50%
COMPONENTS USED:
 Power Supply 5V DC - 7805
 Micro controller - AT89S52-Atmel (Atmel.Com)
 External EEPROM memory - AT24C02/4/8/16/32A
 LCD - (Liquid crystal display) 2 x16
 Real Time Clock (RTC) - DS1307 (Dallas.Com)
 Serial Communication - MAX 232
 Buzzer - Freq-1 to 18 kHz (5v-12Vdc)
 Zigbee module
SOFTWARES USED:
 Embedded C
 Visual Basics
WORKING PRINCIPLE:
We consider a car showroom in this project in a showroom there will be no. of new cars to be sold and there will be many other cars which will be coming for service to the showroom. Each and every car will be installed with zigbee module which can be addressed by a unique code or name and the module consists of microcontroller LCD, RTC, memory to save the data and zigbee to communicate with the main server that is a system which has VB in it and a zigbee connected via serial port. When-ever a new vehicle is sold in the showroom and the zigbee module leaves with the vehicle and when it goes out of the showroom the main system enters the time, date owners name etc.And when ever a car comes to the showroom for a service, automatically the time and every details of that vehicle will be stored in the main system and it will be displayed to the car owner when ever he wants through LCD.
COMPONENT APPLICATIONS:
Power Supply:

The microcontroller and other devices get power supply from AC to DC adapter through voltage regulator. The adapter output voltage will be 12V DC non-regulated. The 7805 voltage regulators are used to convert 12 V to 5VDC.
Vital role of power supply in ‘Zigbee based asset management system’
The adapter output voltage will be 12V DC non-regulated. The 7805/7812 voltage regulators are used to convert 12 V to 5V/12V DC.
Microcontroller:
The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry- standard 80C51 instruction set and pin out.
Features
8K Bytes of In-System Programmable (ISP) Flash Memory
Endurance: 1000 Write/Erase Cycles
4.0V to 5.5V Operating Range
256 x 8-bit Internal RAM
32 Programmable I/O Lines
Full Duplex UART Serial Channel
Fully Static Operation: 0 Hz to 33 MHz
Vital role of Micro controller-AT89S52 in ‘Zigbee based asset management system’ is used to Control all the operation.
RS 232 CONVERTER (MAX 232N) Serial Port:
RS-232Protocol

RS-232 was created for one purpose, to interface between Data Terminal Equipment (DTE) and Data Communications Equipment (DCE) employing serial binary data interchange. So as stated the DTE is the terminal or computer and the DCE is the modem or other communications device.
RS-232 pin-outs for IBM compatible computers are shown below. There are two configurations that are typically used: one for a 9-pin connector and the other for a 25-pin connector.
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