International Journal of Engineering Trends and Technology (IJETT) – Volume22 Number3- April2015
Multi Tasking Weapon Robot
Santosh kumar Kanchipati#1, Grace Mercy Matta*2, Bharat Murali Ayyapureddi#3
#
M. Tech, M. Tech (Ph.D), M. Tech & Electronic & Instrumentation Department& GITAM University, Gandhi Nagar Campus,
Rushikonda, Visakhapatnam-530045, Andhrapradesh, INDIA
Abstract— Robotics is Ocean of technology which is well
developed in the present generation to have the basic needs
and replacement of human for structural, constructional
and to meet the branch of technology which is existed up to
the invention. So we proposed a application based robotics
which is called Military Surveillances Robot (MSR).Itself
about creating an army of humanoids but utilization of
robotics technology for fighting terror and defending the
nation. Thus, military robots need not be humanoids or they
not necessarily need to carry weapons, they are just those
Robots that can help the armed forces. The opportunities
offered by these technologies are boundless to have 4
application which is shown below One is flame producer,
stopping the flame with water, heavy stroke gun and
controlled via Android.
II. SYSTEM ANALYSIS
The main Objective of the MSR is controlled with the basic
block Representation which is shown below. This type of robot
is to utilize in rescue operation also where heavy fire structure.
A. Block Diagram
Keywords— Bluetooth, Serial Communication, Arduino,
Relay
I. INTRODUCTION
The vision of robot army isn’t a present day concept. The
introduction of military robots is dated back from 1898 by the
introduction of radio boats by Nicola Tesla. It was visualized by
many visionaries in the last century. They were used by
Germans and Russians in Second World War. Russians used
Teletanks and Goliath was used by Germans. The Teletanks
were equipped with DT machine guns, flamethrowers and. The
use of Goliath which is a mobile landmine in World War II by
the Third Reich's forces also marked as a turning point in the
history of military robots. And today the development in this
technology is well demonstrated by military robots in
Afghanistan and Iraq. In this scenario the robot is operated with
Android Mobile to make defend like human to against people.
Where Human’s life place a important role we give this robots
to make more valuable life. With a flamethrower a mechanical
incendiary device designed to project a long, controllable stream
of fire. They were used in the prototype lab’s to understand
much and far better using Mosquito Hit as a gas for the project
to throw the fire. Using ball bearing mechanism with dc motor
as pushing source as a front which is explained below. Heavy
Homemade solenoid to store the gas and release the factor in
terms of Pressure scale indicator (PSI) to dial up.
Some flamethrowers project a stream of ignited flammable
liquid; some project a long gas flame
That is well applied here with replacement of Cartridge. To
develop the app we used eclipse software to make the app
controlled via serial communication.
ISSN: 2231-5381
Fig1.Block diagram
Fig2.Android App
The source for entire robot is Android device to control the
main characteristic principle in form signal representation via
ASCII characters. The above Block diagram aims that the
communication from android mobile will transmit through
master Bluetooth app and Bluetooth slave that is HC-05 module
is to receive the transmitted ASCII and given to the controller
so the controller justifies the work done to happen and relay
triggers as per the need to happen. The voltage for entire system
is 12v 1.2Ah is added for entire receiver station.
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International Journal of Engineering Trends and Technology (IJETT) – Volume22 Number3- April2015
Generally, the Bluetooth of HC-03/HC-05 is recommended for
the user.
B. Hardware required





Android Device
Arduino Board
HC-05 Bluetooth module
Relay Board
Battery 12v 1.2Ah
C. Software Requirement
 Arduino
 Eclipse
1) Android Device: Android is a mobile operating system
(OS) based on the Linux kernel and currently developed by
Google. With a user interface based on direct manipulation,
Android is designed primarily for touch screen mobile devices
such as smart phones and tablet computers, with specialized user
interfaces for televisions (Android TV), cars (Android Auto),
and wrist watches (Android Wear). The OS uses touch inputs
that loosely correspond to real-world actions, like swiping,
tapping, pinching, and reverse pinching to manipulate on-screen
objects, and a virtual keyboard. Despite being primarily
designed for touch screen input, it also has been used in game
consoles, digital cameras, regular PCs (e.g. the HP Slate 21) and
other electronics.
2) HC-05: Bluetooth Serial module’s operation doesn’t need
drive, and can communicate with the other Bluetooth device
who has the serial. But communication between two Bluetooth
modules requires at least two conditions:
 The communication must be between master and
slave.
 The password must be correct.
HC-03
3) Arduino:
The master for robot is Arduino because of decision maker
and controller depending upon the user defined commands to
make it prompt with conditional depending upon the ASCII
standards by using communication called serial
communication or UART.
Serial Used for communication between the Arduino board
and a computer or other devices. All Arduino boards have at
least one serial port (also known as a UART or USART):
Serial. It communicates on digital pins 0 (RX) and 1 (TX) as
well as with the computer via USB. Thus, if you use these
functions, you cannot also use pins 0 and 1 for digital input or
output. You can use the Arduino environment's built-in serial
monitor to communicate with an Arduino board. Click the
serial monitor button in the toolbar and select the same baud
rate used in the call to begin().The Arduino Mega has three
additional serial ports: Serial1 on pins 19 (RX) and 18 (TX),
Serial2 on pins 17 (RX) and 16 (TX), Serial3 on pins 15 (RX)
and 14 (TX). To use these pins to communicate with your
personal computer, you will need an additional USB-to-serial
adaptor, as they are not connected to the Mega's USB-toserial adaptor. To use
HC -05
However, the two conditions are not sufficient conditions.
There are also some other conditions basing on different device
model. The Bluetooth serial module named even number is
compatible with each other; The slave module is also
compatible with each other. In other word, the function of HC04 and HC-06, HC-03 and HC-05 are mutually compatible with
each other. HC-04 and HC-06 are former version that user can’t
reset the work mode (master or slave). and only a few AT
commands and functions can be used, like reset the name of
Bluetooth (only the slaver), reset the password, reset the baud
rate and check the version number. The command set of HC-03
and HC-05 are more flexible than HC-04 and HC-06’s.
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Fig: 3:Bluetooth Pin diagram
Fig 4: Bluetooth Communication with Arduino
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them to communicate with an external TTL serial device,
connect the TX pin to your device's RX pin, the RX to your
device's TX pin, and the ground of your Mega to your
device's ground. (Don't connect these pins directly to an
RS232 serial port; they operate at +/- 12V and can damage
your Arduino board.)
D. Design of the Robot
The robot is completely designed with wood for harder
movement to make more flexibility and PCB used for soldering
the Relay.
A.Relay Boards:
A relay is an electrically operated switch.
Many relays use an electromagnet to mechanically operate a
switch, but other operating principles are also used, such as
solid-state relays. Relays are used where it is necessary to
control a circuit by a low-power signal (with complete electrical
isolation between control and controlled circuits), or where
several circuits must be controlled by one signal. The first relays
were used in long distance telegraph circuits as amplifiers: they
repeated the signal coming in from one circuit and retransmitted it on another circuit. Relays were used extensively in
telephone exchanges and early computers to perform logical
operations.
A type of relay that can handle the high power required
to directly control an electric motor or other loads is called a
contractor. Solid-state relays control power circuits with no
moving parts, instead using a semiconductor device to perform
switching. Relays with calibrated operating characteristics and
sometimes multiple operating coils are used to protect electrical
circuits from overload or faults; in modern electric power
systems these functions are performed by digital instruments
still called "protective relays".
The relay in the picture also has a wire connecting the armature
to the yoke. This ensures continuity of the circuit between the
moving contacts on the armature, and the circuit track on the
printed circuit board (PCB) via the yoke, which is soldered to
the PCB.
Fig6: Relay Board
B. Mosquito Hit:
Mosquito hit is used to kill some insects but it is
very hot in liquids which provide the flammable when you keep
fire in front of the spraying tip. So we used this to produce fire
when we control through mobile and
Fig7: Hit for Producing Fire
Fig5:
Relay Circuit diagram
A simple electromagnetic relay consists of a coil of wire
wrapped around a soft iron core, an iron yoke which provides a
low reluctance path for magnetic flux, a movable iron armature,
and one or more sets of contacts (there are two in the relay
pictured). The armature is hinged to the yoke and mechanically
linked to one or more sets of moving contacts. It is held in place
by a spring so that when the relay is de-energized there is an air
gap in the magnetic circuit.
In this condition, one of the two sets of contacts in the relay
pictured is closed, and the other set is open. Other relays may
have more or fewer sets of contacts depending on their function.
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Fire occurs naturally as a result of volcanic activity,
meteorites, and lightning strikes. Many animals are aware of fire
and adapt their behaviour to it. Plants, too, have adapted to the
natural occurrence of fire (see Fire ecology). Thus, humans
encountered and were aware of fire, and later its beneficial uses,
long before they could make fire on demand. The first and
easiest way to make a fire would have been to use the hot ashes
or burning wood from a forest or grass fire, and then to keep the
fire or coals going for as long as possible by adding more wood
and plant materials many times each day.
C. Cycle Pump:
A bicycle pump is a type of positive-displacement pump
specifically designed for inflating bicycle tires. It has a
connection or adapter for use with one or both of the two most
common types of valves used on bicycles, Schrader or Presta. A
third type of valve called the Woods valve exists, but tubes with
these valves can be filled using a Presta pump.
Several basic types are available:
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 Floor models or track pumps
 Frame mounted
 Compact or mini
 Foot operated
 Double action
In its most basic form, a bicycle pump functions via a handoperated piston. During the up-stroke, this piston draws air
through a one-way valve into the pump from the outside. During
the down-stroke, the piston then displaces the air from the pump
into the bicycle tire. Most floor pumps, also commonly called
track pumps, have a built in pressure gauge to indicate tire
pressure. Electrically-operated pumps intended to inflate car
tires (as available in most service stations) can in principle be
used to inflate a bicycle tire if the right type of connection is
available. Some such pumps are designed to cut off before a
suitable pressure (much higher for a bicycle than a car tire), and
will much underinflated the tire. Others may not cut off, but
deliver a high rate of flow to fill the larger car tire, with a risk of
overinflating and bursting a bicycle tire unless it is stopped with
split-second timing.
This pump is utilised here to store the air as shown in Fig:
because we need to open with highest PSI to make the bullet to
push faster in this process we need pushing forces called air. So
depending upon this constraint we utilised it for GUN.
Fig9: Submersible Pump
The coco cola bottle is utilised for storing the water and the
submersible motor has two ports Inlet and outlet. Inlet is used to
insert into the bottle to make the water flow through it. When
motor starts rotating it send the water through outlet.
Fig10: 12V Submersible motor
The submersible pumps used in ESP installations are
multistage centrifugal pumps operating in a vertical position.
Although their constructional and operational features
underwent a continuous evolution over the years, their basic
operational principle remained the same. Produced liquids, after
being subjected to great centrifugal forces caused by the high
rotational speed of the impeller, lose their kinetic energy in the
diffuser where a conversion of kinetic to pressure energy takes
place. This is the main operational mechanism of radial and
mixed flow pumps.
Fig8: AIR pump
Fig8: Air Storage with Seal
D. Submersible Motor:
A submersible pump is a type of hermetically sealed pump
device that operates by pushing, rather than pulling, water
during its pumping process. It is able to function in this manner
because, like the name suggests, the pump is fully submerged in
the liquid to be pumped.
Here the purpose of utilising the 12v DC submersible motor
is to stop the fire where ever we require via android control.
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E. DC Motors:
A DC motor relies on the fact that like magnet poles repels
and unlike magnetic poles attracts each other. A coil of wire
with a current running through it generates a electromagnetic
field aligned with the centre of the coil. By switching the current
on or off in a coil its magnet field can be switched on or off or
by switching the direction of the current in the coil the direction
of the generated magnetic field can be switched 180°. A simple
DC motor typically has a stationary set of magnets in the stator
and an armature with a series of two or more windings of wire
wrapped in insulated stack slots around iron pole pieces (called
stack teeth) with the ends of the wires terminating on a
commutator. The armature includes the mounting bearings that
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keep it in the centre of the motor and the power shaft of the
motor and the commentator connections. The winding in the
armature continues to loop all the way around the armature and
uses either single or parallel conductors (wires), and can circle
several times around the stack teeth. The total amount of current
sent to the coil, the coil's size and what it's wrapped around
dictate the strength of the electromagnetic field created. To keep
up with the fast pace of changing technology an upward
compatibility requirement will ensure that the latest in sensors,
motors, processors, and batteries will work without major
modification
ACKNOWLEDGMENT
I would like to express my special thanks of gratitude to my
teacher (Grace Mercy Mam),who gave me the golden
opportunity to do this wonderful project on the topic (Multi
Tasking Weapon Robot), which also helped me in doing a lot of
Research and I came to know about so many new things I am
really thankful to them.
REFERENCES
[1] ANGELO, J. A. (2007): Robotics: a reference guide to the
new technology. Libraries Unlimited. Santa Barbara,
United States. ISBN: 1573563374
[2] SICILIANO, B. & KHATIB, O. (Eds) (2008): Handbook
of Robotics. Springer-Verlag. Berlin, Germany. ISBN 9783-540-29838-0
[3] SINGER, P. W. (2009): Wired for War. The Penguin Press.
New York, United States. ISBN 978-1-5942-0198-1.
[4] WILLIAMSON, M. (2006): Spacecraft technology: the
early years. IET. Herts, United Kingdom. ISBN:
0863415539
[5] Wiki for understanding how to interface with android
http://en.wikipedia.org/wiki/Android_%28robot%29
Fig11: Side shaft DC motor.
Motor Specifications are 6kgTorque300rpm and voltage of
12v DC, Current is 1.2ah
F. Overall Diagram:
Fig12: Components Utilised
Bullets
III. CONCLUSIONS
The primary mission for such vehicles is mine clearing
operations. He believes that current robotic insertion technology
has advanced sufficiently enough that modifying existing
vehicles with teleportation has the least acquisition risk, puts a
capability into the hands of the user today, and has the greatest
potential to field future robotic technology. These systems are
greatly sought after by the Army Corps.
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