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. http://www.ijettjournal.org Page 138 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. ISSN: 2231-5381 Fig: 3:Bluetooth Pin diagram Fig 4: Bluetooth Communication with Arduino http://www.ijettjournal.org Page 139 International Journal of Engineering Trends and Technology (IJETT) – Volume22 Number3- April2015 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. ISSN: 2231-5381 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: http://www.ijettjournal.org Page 140 International Journal of Engineering Trends and Technology (IJETT) – Volume22 Number3- April2015 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. ISSN: 2231-5381 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 http://www.ijettjournal.org Page 141 International Journal of Engineering Trends and Technology (IJETT) – Volume22 Number3- April2015 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. ISSN: 2231-5381 http://www.ijettjournal.org Page 142