ABSTRACT on military applications.They can be used to explore

ABSTRACT  Robotsare getting one of the most essential equipment in our daily life with thedeveloping of artificial intelligence.

Robots are so beneficial in many areathat is making our life easier.They can work in any environment,adding to theirflexibility.Robots eliminate dangerous jobs for humans because they are capableof working in hazardous environments. The implementation of advanced roboticsin the military and NASA has changed the landscape of national defense andspace exploration.

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Referrig to this information mentioned before  we decided to design sumo robot.Sumo robot isdeveloped for tournaments.Besides being used in tournaments,there are alsoareas that can be used in daily life especially on military applications.They canbe used to explore small or dangerous terrain, or even perform everyday taskson its own like vacuuming an entire house.As a team we have worked on a the designof this robot from many different angles like mechanical, electrical and coding.                            INTRODUCTION  Withthe developments of artificial intelligence,robots and similar structures arebecoming the cornerstone of our daily life.Robots are being used aroundworld.

Through the century robots changed the structure of society and allowedfor safer conditions for labor.In addition,the implementation of advancedrobotics in the military and NASA has changed the landscape of national defenseamd space exploration.Robots have also been influential in the media andprofitable for toy manufacturers.In this project we designed is a sumo robot.Sumorobot is a competition where two opposing autonomous robots try to push eachother out of a ring,like sumo-wrestlers.

There are many engineering challengesin designing these robots,like avoiding the edge of the ring,detectingopponents,and using mechanical mechanisms to gain an advantage over theopponent. Although this robot is developed to compete in a tournament, thetechnology can be used for unlimited applications. For example, the robot canbe used to explore small or dangerous terrain, or even perform everyday taskson its own like vacuuming an entire house.We have worked on the design of thisrobot from many different angles like mechanical, electrical and coding.Besidesthe engineering speacilists project taught how to work together as a teamespecially on problem solving awareness and decision.                  PROJECTOBJECTIVE Toachieve the goal of this poject,there are some objectives that should be done: a)Investigatea suitable microcontroller to be used in sumo robot.

 b)Identifysuitable sensor and implement it on sumo robot. c)Developa algorithm to control sumo robot based on data it received  from sensor. d)Studya suitable material and design for sumo robot.          COMPONENTS    Oneof the most important problem was about the project is choosing a suitablemicrocontroller and sensors to be used in the project.Besides the components,algorithm of  the programming part wasalso very important.       Basic materiallist1)Lithium Polymer Battery2)D80NK Sensor 3)Reducerdc moto4)D18NK Sensor5)ArdunioUno6)MotorDrivers        Ardunio UNO  Ardunio is themain components  of our project. Arduino is anopen-source electronics prototyping platform based on flexible, easy-to-usehardware and software.Arduino hardware is an open-source circuit board with amicroprocessor and input/output (I/O) pins for communication and controllingphysical objects (LED, servos, buttons, etc.

). The board will typically bepowered via USB or an external power supply which in turn allows it to powerother hardware and sensors.  The Arduino integrated development environment(IDE) allows you to write code, compile it, and then upload it to your Arduinofor stand alone use in prototyping and projects.      Motor Driver Motor drivers are essential for the enginechoice. If you use big motors, also you have to use big, powerful motorcontroller. Roboclaw or Dimension Engineering motor controllers are rightdecisions. But how will you choose your motor driver? Here are some tips.

It should deliver continuously 25A at least. It should work in high voltage for motors. (For instance, if you have 24V motor Maxon’s it needs to be driven in 30-36V) Easy to interface.   Lithium polymerbattery:    Lithium Polymer batteries (henceforth referred to as “LiPo”batteries), are a newer type of battery now used in many consumer electronicsdevices. They have been gaining in popularity in the radio control industryover the last few years, and are now the most popular choice for anyone lookingfor long run times and high power. LiPo batteries offer a wide array of benefits. But each usermust decide if the benefits outweigh the drawbacks.

 Advantages of Lithium Polymer batteries :·        Much lighter weight,and can be made in almost any size or shape.·        Much highercapacities, allowing them to hold much more power.·        Much higher dischargerates, meaning they pack more punch. D80NK Sensor  Software Requirement Code part that we use in a project is: const int ort_sensor=7;const int sag_sensor = 8;const int sol_sensor=6; const int sag_arti=4;const int sag_eksi=5;const int sol_arti=2;const int sol_eksi=3;const int baslatma=10;  int sol_durum;int sag_durum;int ort_durum; void setup() {  pinMode(2,OUTPUT);  pinMode(3,OUTPUT);  pinMode(4,OUTPUT);  pinMode(5,OUTPUT);   pinMode(6,INPUT);  pinMode(7,INPUT);  pinMode(8,INPUT); } void loop() { sol_durum=digitalRead(sol_sensor); sag_durum=digitalRead(sag_sensor); ort_durum=digitalRead(ort_sensor);         if(digitalRead(baslatma)==1) {        if   (ort_durum==LOW) {       digitalWrite(sag_arti,HIGH);        digitalWrite(sag_eksi,LOW);       digitalWrite(sol_arti,LOW);       digitalWrite(sol_eksi,HIGH);}else if(sag_durum==LOW)    {       digitalWrite(sag_arti,LOW);       digitalWrite(sag_eksi,HIGH);       digitalWrite(sol_arti,LOW);        digitalWrite(sol_eksi,HIGH);    }else if(sol_durum==LOW)    {       digitalWrite(sag_arti,HIGH);       digitalWrite(sag_eksi,LOW);       digitalWrite(sol_arti,HIGH);       digitalWrite(sol_eksi,LOW);    } else     {       digitalWrite(sag_arti,LOW);       digitalWrite(sag_eksi,HIGH);       digitalWrite(sol_arti,HIGH);       digitalWrite(sol_eksi,LOW);                 }    }    }      Working  Our Sumo Robot will move in the horizontally, and we need toprogramme our arduino according to this object.We use 3 D80NK sensor.Theyprovide us the position of the obstacle.These sensors determine that and,digital signal is sent to the arduino, from arduino to the motor driver andmotors.

Thus, our motors change their rotating, and our robot move to theobstacle.Firstfully, we programme the arduino, using pins on the arduino wemake the connections of the motor driver, and we connected the sensors to thearduino to get signal, finally we connected the motors.                            Conclusion Therobot responds “intelligently” to stimulus from the environment. It responds tofrontal impact by pushing back against its opponent, attempts to dodge when itsenses impact from the side or back, and above all else reacts to borderdetection events by trying to stay in the ring.So the purpose we mentioned atthe begining of the project accomplished.Further improvements could be made byadding colour or temperature sensor.So that our sumo robots could be used indifferent areas.

And adding heat and color sensivity make our robots more usefulin daily life.       .                          References 1)” K SV ­ Sumovore Mini­Sumo « Products « Solarbotics.” Solarbotics.http://www.solarbotics.

com/products/k_sv/ (accessed April 11, 2010). 2)”SumoBot V2 | NXTCentral.com.” NXTCentral ­ Lego NXT Mindstorms Projects, Photos and News. Web. 11 Apr. 2010. 

nxtcentral.com/2008/02/25/sumobot­v2/>. 3)”SumoBot v2 | NXTCentral.

com.” NXTCentral ­ Lego NXT Mindstorms Projects, Photos and News. http://www.

nxtcentral.com/2008/02/25/sumobot­v2/ (accessed April 11, 2010). 4)”Building a 5 Volt Power Supply, Microcontroller Beginner Kit.” Electronic Tutorials, Electronic Kits, Electronic Tutorials, Electronic Hobby Kits, Electronic Kit, Electronic Hobby Projects. http://www.electronicsteacher.

com/tutorial/building­a­5­volt­power­supply.php (accessed April 11, 2010). 5)”Image of SN754410N, quad half­H bridge”.” limor. http://www.

ladyada.net/wiki/partselector/ic (accessed April 11, 2010).