AUTOMATIC FIRE DETECTING AND FIRE FIGHTING ROBOT
This invention relates to the development in a robotic system for automatic fire detecting and fire
fighting, build to fight fire at difficult and in accessible locations without endangering human life, it is
a self controlled robotic system with independent decision making ability.
The present invention relates to a "robot" specifically used for detecting and fighting fire at
inaccessible locations, mainly designed for ships, submarines and other sensitive locations.
The present invention Automatic fire detecting and fire fighting robot describes a robotic system,
which composes of a fire detecting unit comprising of video camera and sensors, which acts as an
input unit to the system. The on board embedded system acts as a processing unit which processes the
inputs of sensors and accordingly activates water or foam type extinguisher housed in fire fighting
assembly. The fire fighting assembly comprising of water and foam type extinguisher constitutes the
output unit which is used for fighting fire.
As per previous arts of fire fighting robotic systems, that are used to fight fire have source of supply of
fire extinguishing liquid from outside, they have to be controlled manually resulting in dependency of
external source in form of human commands. These system required external supply of fire
extinguishing liquid and instructions making them less reliable and giving chance for errors to creep.
New approaches taken were to deal with problem of external supply of fire extinguishing liquid as a
result robots were provided with fire extinguishing liquids, thus reducing there dependency on external
sburce. The u.s patent no 7,182,144B2 was an attempt to solve the problem regarding external supply
of fire extinguishing liquid. It catered about this problem, but nothing was done in direction of
independent decision making ability of the robot. It was controlled manually using mobile or wireless
communication. This robot still depends on external instruction from human, as a result it becomes
less reliable due to human errors. The objective of present invention is to increase the decision making
ability of Automatic fire detecting and fire fighting robot resulting in reduced external dependency for
instructions. So that it can fight fire as soon as it is detected by it.
On the other hand various other fire fighting systems have been developed, these system mainly uses
sprinklers located at fixed positions, which are operated as soon as fire is detected either automatically
or manually. Although these types of system are very simple, they suffer with the problem of being
fixed and cannot be mobilized if required. Fire fighting has always been a high risk affair with many
developments in place, it still largely depends on human interactions.
Automatic fire detecting and fire fighting robot has been developed with the aim of reducing risk
involved, and making fire fighting possible at location which are inaccessible by fire fighters. The
present invention comprises of a robot with fire detecting unit, fire fighting assembly, mobilizing unit
and a processing unit which controls the robotic system. The fire detecting unit houses smoke detector,
infra red detector, temperature sensor and a video camera. Fire fighting assembly comprises of water

type extinguisher and foam type extinguisher, which are used depending on type of fire. Mobilizing
unit comprises of two sets of tyre assembly which provides mobility to the robot, the tyres are
specially designed to provide maximum stability to robot while moving on track. The processing unit
comprises of an embedded system which controls the robot and updates the control room with
different inputs received through fire detecting unit.
In the present invention robot moves on a fixed track keeping strict vigilance on the area under
surveillance for fire. The embedded system in the processing unit is programmed according to the
priority of the objects under surveillance, this means the place with highest risk of fire is given
maximum surveillance time i.e. the robot spends more time keeping watch on it. While on the
surveillance duty the robot senses the fire using sensors on fire detecting unit the robot instantly moves
to the spot activating alarm at control room and giving video footages of fire. It uses one of the fire
extinguishers in the fire fighting assembly for extinguishing fire depending on the type of fire,
maintaining a safe distance from it. The robot is controlled by embedded system which is programmed
to handle all possible conditions arising in the surveillance area
Brief description of drawing:
The system is described using these drawings:
Fig 1 Line diagram of the complete system, showing in block fire detecting unit, fire fighting
assembly, mobilizing unit, processing unit and control room.
Fig 2 Different views of mobilizing unit elevation, plan and side view
Fig 3 Elevation of the complete robotic system.
Detailed description of the preferred embodiments:
The present invention Automatic fire detecting and fire fighting robot describes a robotic system
which comprises of fire detecting unit comprising of fire detecting sensors namely smoke detector,
infra red detector, temperature sensor and a video camera, which acts as an input unit to the processing
unit to the system. The onboard embedded system act as a processing unit which processes the input of
sensors and accordingly activates the fire fighting assembly. The foam and water type extinguisher
forms the fire fighting assembly, it acts as an output unit and is used for fighting fire.
With reference to the detailed description of the described drawings, the overall line diagram of the
system is indicated in the entry figure (1), by reference character (1). it shows the overall line diagram
of the system comprising of the processing unit (9) which controls and monitors the activities of the
robotic system and feeds the control room (10) with all the data. There is a fire detecting unit (11)
which houses different sensors- temperature sensor (3), smoke detector (4), infra red detector (5), and

a video camera (2). In case of fire, fire detecting unit (11) acts as an input to processing unit (9) and
control room (10). There is a fire fighting assembly (12) which fights fire as and when instructed with
foam and water type extinguisher (7, 8), which are used depending on type of fire as instructed by
processing unit (9). The mobilizing unit (13) is used to move robot on a predefined track as and when
instructed in forward and backward direction, it consists of a tyre assembly (8), two front and two rear
wheels the tyre assembly has specially designed tyres as shown in Fig 2. The Fig 2 shows different
vjiews of tyre assembly showing specially design tyres (20) to provide maximum stability while
moving on its track. The processing unit controls the mobilizing unit such that robotic system spends
more time in the area of higher priority i.e. is place with higher fire risk, as pre feeded in the
processing unit i.e. it slows down the speed of tyre assembly in higher priority zone, making the
robotic system spend more time in the higher priority area. All activities of the robotic system are
continuously monitored from the control room (10).
The robotic system with reference to Fig 3, as shown in it continuously moves on track keeping a strict
vigilance on the area under surveillance using its fire detecting unit (32) mounted on both forward and
aft end of robotic system, while on vigilance if the robotic system detects a fire using its fire detecting
unit (32). As soon as fire sensors send a signal to the processing unit (35) it in turns on the camera and
notifies the control room, and in turn checks for signals from other sensors. If there is no response
from the control room in stipulates time period it takes up its own decision, depending on the reading
from other sensors in fire detecting unit (32). In case there is a. reporting from other sensors in fire
detecting unit (32) the processing unit (35) decides which would be the best fire fighting extinguisher
-r water type (33) or foam type (34) extinguisher, in fire fighting assembly. In case there is no
reporting from other sensors in fire detecting unit (32) robotic system activates the foam type
extinguisher (34) in fire fighting assembly and raises a alarm at control room. In case the robotic
system decides to use water type extinguisher (33), it simultaneously switches on the motor to fetch
water in the water storage tank (28) of the robotic system. The robotic system continues to fight fire
util the sensors in the fire detecting unit (32) shows that fire has been extinguished or there is an
external interruption from control room, to shut down fire fighting assembly.

We claim,
1. Automatic fire detecting and fire fighting robot comprising:-
a robotic system comprising of mobilizing unit, fire detecting unit, fire fighting assembly and
a processing unit;
mobilizing unit consists of two sets of tyres powered by two different motors;
a fire detecting unit which houses a set of fire detecting sensors on forward and aft part of the
robotic system, so as to keep a strict vigilance in forward and aft part;
a fire fighting assembly houses two types of fire extinguisher water type and foam type fire
extinguisher, one of the fire extinguisher is used depending on the type of fire as the input
given by fire detecting unit to the processing unit.
2. Automatic fire detecting and fire fighting robot as claimed in claim 1, comprising said
mobilizing unit, is where in the said mobilizing unit is used to provide mobility to the robot,
consists of two sets of tyres to give maximum stability to the robot while on track, both tyre
sets are independently driven by two individual motors.
3. Automatic fire detecting and fire fighting robot as claimed in claim 1, comprising of a fire
detecting unit, where in the said fire detecting unit which houses a set of sensors, temperature
sensors, smoke detector infra red detector and a video camera, a fire detecting unit is placed
on each forward and aft position of the robotic system, which helps the robotic system in
deciding which fire fighting assembly to be used forward or aft and what type of the fire
extinguisher to be used.
4. Automatic fire detecting and fire fighting robot as claimed in claim 1, comprising of a fire
fighting assembly, where in the said fire fighting assembly have two types of fire
extinguishers, water type and foam type fire extinguisher, which are used to fight fire
depending on type of fire they have their jet opening on both forward and aft of the robotic
system, to fight fire in both directions simultaneously.
5. Automatic fire detecting and fire fighting robot as claimed in claim 1 and 4, comprising of a
fire fighting assembly, where in the said fire fighting assembly consists of two fire
extinguisher, which are able to fight fire without external supply of fire extinguishing liquid
making it independent of external dependency for fighting fire.
6. Automatic fire detecting and fire fighting robot, as here in described with reference to the
accompanying drawings.

Automatic fire detecting and fire fighting robot, mainly for automatically detecting and
fighting fire at area under surveillance. The robotic system constitutes of fire detecting unit
(11), fire fighting assembly (12), mobilizing unit (13) and a processing unit (9). The fire
detecting unit (11) detects fire through different sensors (3, 4, 5) and a video camera (2). It
provides input to the processing unit (9) on the robotic system, in case any one of the sensors
gives the signal of fire to the processing unit (9), processing unit in turn activates the fire
fighting assembly (12). The fire fighting assembly (12) is used to fight fire using one of the
two fire extinguishers, it has a water type extinguisher (6) and a foam type extinguisher ( ),
which are used depending on the input from fire detecting unit (11) to the processing unit (9).
The mobilizing unit (13) provides mobility to the robotic system. It consists of a tyre
assembly (8), which is made up of two sets of specially designed tyres, which provide
maximum stability to the robotic system while moving on the track. The mobilizing unit (13)
is controlled by the processing unit (9). The processing unit (9) controls all parts of the
robotic system, it consists of an embedded system (1) along with driver circuit. Embedded
system is programmed to handle all possible conditions arising in the surveillance area. The
driver circuits controls the activity of different parts of the robotic system as programmed.