10-04-2010, 11:42 PM
[attachment=3139]
MICROCONTROLLER BASED FIRE FIGHTING ROBOT
ABSTRACT
IN OUR PROJECT WE DESIGNED A PROTOTYPE TO DETECT FIRE AND EXTINGUISH THE FIRE WITH THE HELP OF WATER SPRINKLER
PROJECT OVER VIEW
BLOCK DIAGRAM
WATER
SPRINKLLER
Project Explanation
BRAIN OF THE PROJECT IS MICROCONTROLLER.
IT INTERFACE WITH SMOKE DETECTOR AND OUTPUT.
DETECTOR GIVES SIGNAL TO PORT3 OF MC.
IT PERFORM 4 ACTIONS.
POWER SUPPLY
Power supply types
Linear power supply.
simple design that becomes increasingly bulky and heavy for high current devices .
switching power supply.
It is usually more efficient, but will be more complex.
LINEAR POWER SUPPLY
TRANSFORMER
RECTIFIER
CAPACITORS
LED
RPS
AT89S52 MC
Architecture “ 8051 based
8-bit Microcontroller
8K Bytes In-System Programmable Flash
Features
Fully Static Operation: 0 Hz to 33 MHz
4.0V to 5.5V Operating Range
256 x 8-bit Internal RAM
Full Duplex UART Serial Channel
Fast Programming Time
Eight Interrupt Sources
Dual Data Pointer
Three 16-bit Timer/Counters
Description
The AT89S52 is a powerful microcontroller which provides a highly-flexible and cost-effective
solution to many embedded control applications.
The device is manufactured using Atmelâ„¢s high-density nonvolatile memory technology and is
compatible with the industry - standard 80C51 instruction set and pin out.
PIN CONFIGURATION
PIN DESCRIPTION
VCC
GND
Port 0
Port 1
Port 2
Port 3
RST
ALE/PROG
PSEN
EA/VPP
XTAL1,XTAL2
SMOKE DETECTOR
Make “ MOSDESIGN SEMICONDUCTOR CORP.
This device can be used in conjunction with an infrared photoelectric chamber to sense scattered
light from smoke particles.
FEATURES
Interconnect up to 50 detectors.
Piezoelectric horn driver.
Power-on reset.
Built-in circuits to reduce false triggering.
6V to 12V operating voltage range.
ESD-Protection circuitry on all pins.
Temporal horn pattern.
PIN CONFIGURATION
LIGHT EMITING DIODE
FUNCTION
LED IS A SEMI CONDUCTOR DIODE THAT EMITS LIGHT WHEN AN ELECTRIC CURRENT IS APPLIED IN FORWARD
DIRECTION OF THE DEVICE.
TECHNOLOGY
DC MOTOR
