1. RF CONTROLLED
FIRE FIGHTING ROBOT

2. CONTENTS
OBJECTIVES
TECHNOLOGY/IDEA
BLOCK DIAGRAM
DESCRIPTION
ADVANTAGES
DISADVANTAGES
APPLICATIONS
CONCLUSION
FUTURE SCOPE

3. OBJECTIVES

This project deals with RF controlled Robot.

It is used as fire extinguisher i.e. it sprinkles water on to fire

It is a prototype for the “path finder” which was sent to mars
in 1998

This was a great achievement which detected the secrets of
MARS

This can be moved forward and reverse direction using
geared motors and can take sharp turnings.

When the robot is moving on a surface the system produces
a beep sound when metal is detected.

4. TECHNOLOGY/IDEA

RF robot can also be used as fire extinguisher i.e. it sprinkles
water on to fire

RF is a frequency or rate of oscillation within the range of
3Hz -300GHz

The RF modules used here are STT-433 MHz Transmitter, STR-
433 MHz Receiver, HT12E RF Encoder and HT12D RF Decoder.

The switches are interfaced to the RF transmitter through RF
Encoder.

If a switch is pressed then the motor gets switched on which in turn
switches on water sprinkler

5. TECHNOLOGY/IDEA

The encoder will continuously read the status of the switches,
passes the data to RF transmitter and transmitter will
transmits the data

This data will be received by the RF receiver

As the TX requires a encoder, the RX also needs a decoder

This project uses 9V battery

This project uses AT89S52 MCU as its controller.

6. BLOCK DIAGRAM(TX)

7. BLOCK DIAGRAM(RX)

8. DESCRIPTION

RF transmitter The transmitter used is STT 433
MHz
It has 4 pins
Antenna
Vcc
Data
GND

9. DESCRIPTION

RF receiver The receiver used is STR
433MHz
It has 8 pins
Antenna
Gnd(3)
Vcc(2)
Data(2)

10. KIT WORKING SNAPS

12. ADVANTAGES
No line of sight
Not blocked by common materials. It can pass through solids
Longer range
Not sensitive to light
Not sensitive to weather conditions

13. DISADVANTAGES
 Communication devices mostly use similar frequency so
interference occurs if address is not specified.
 High cost.
 Data rate transmission is lower than wired transmission.
 It cannot be work beyond limit

14. APPLICATIONS
Industries are using RF solutions
for monitoring, control , process, inventory tracking,
data links and bar code reading devices.
Consumer products
electronic toys, home security, gate and garage
door openers, Intercom, fire and safety systems, and
irrigation controllers.
Medical products
patient call and monitoring, handicap assistance
device, surgery Communication system, remote
patient data logging and ECG monitor.

15. CONCLUSIONS
This Project presents a firefighting robot using
RF communication and it is designed and
implemented with Atmel 89S52 MCU in embedded
system domain. Experimental work has been carried
out carefully. The result shows that higher efficiency
is indeed achieved using the embedded system. The
proposed method is verified to be highly beneficial
for the security purpose and industrial purpose.

16. FUTURE SCOPE
The practical application domains where robotic
technology is most likely to be used are
Civil defence
Search and rescue, Fire fighting
Domestic services
like cleaning , arranging
Security/surveillance
patrol, observation etc.
War machines
Exploration(oceans,space,deserts etc.)

18. QUERIES