Increasing the efficiency of Sumo Robots using different algorithms and unique DAF-manufactured structures  

Published: 2021-07-07 00:01:51
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 AbstractThe paper introduces the Robot sumo that has taken the world stage by surprise as a friendly type of fight similar to the famous sport; sumo. The article then explains the nature and kind of rules that exist and are recognizable during a robot sumo fight. Also, there competitive advantages that give a competitive edge to any two robots are discussed intensely in the paper. The methodology applied, the participant who helped create robot A and Rob B for this fight are credited and acknowledged for their contribution. The article then further states the procedure for construction of both the robots in length as well as the statement the material used for their development respectively. In the fight, robot B emerged victorious due to the advantage it had over the robot regarding torque, speed, the design, as well as the programming that greatly increase its strength and agility in the battle ring.IntroductionThere have been people who have been using robots in spectators sports such as in the Battlebots. However, there has been the rise of Robot Sumo, which is different from the original fighting bots. Robot sumo has the same objective as the parent game sumo, where the opponent robot isn’t allowed to destroy the opponents or to turn them into a heap of pile junk, bit the push the robot out of the ring. It is this execution of this process by the robots that make the sports fun and entertaining to watch.According to Wyffels et al., (2011), another exciting thing about this robots fight in the Robot sumo is that the robots are completely autonomous and not controlled by humans. The robots duke it out because they want and not because they are told to duke it out. The robots are fitted with many sensors, whose objective is to detect the opponent as well as creatively created mechanical arms, lifts, and sheer brute force to accomplish their goals. The robots are however built differently to withstand different pressures, whereas as some are created fast to zipping around aiming for the killing blow, some are slow and able to resist continually being pushed by the faster robots constantly. Although robot sumo seems like an informal sport, there has been extensive rules that have been set up objectively to govern the fight ranging from the ring size and the type of jamming and flammable materials.The rule of this game is quite where the winner is determined when the first robot flips the second robot out of the rig and the remaining robot wins. Sumo ring is typically four feet in the distance across including a two-inch outskirt situated on the ring’s fringe. The surface of the ring, nonetheless, is smooth plywood that is painted level dark and sits about one and a half inches off the ground level. The two robots fighting are usually set around ten Lego studs separated also an equivalent separation from the rings inside. A robot is thought to be vanquished when both of its units is handicapped or expelled from the ring, or part of the robots tumbles off the edge and thus touching the floor. In a competition, there are two points given for a win, one for a draw and zero for loss. There are no changes in programming that should be conducted during the match, and use of flying competes in the fights.According to Do et al., (2016), one of the significant factors that determine the winning of the robot is the tires if the two robots are entirely matched. Whereas better tires have a better grip on the surface of the ring and shove better unless they are severely underpowered, narrow, worn tires spell disaster since they can push around easily (Benavidez et al., 2012). Also, another significant element is the scoop or arm that are usually designed to shift the opponent off their weight reducing the grip of the opponent’s robot and increasing the scooper’s grip. Choosing the color of the robots is a crucial factor because, for example, dark robots cannot be easily seen by infrared, however, these sensors increases the chance to efficiently fight in contacting the mobile robots and hence attack effectively. Finally, the slick encased robes are usually slippery accordingly provide difficult time for the opponent to have a grip.MethodParticipants Dr. Max (team coach) (his mission was supervising us, encouraging us, and solve any technical issues)Mr. Adel (art and design teacher) (he solved some designing issues of the robot regarding the stabilization of the body and the wheels)Mr. Ansar (workshop owner) (I gave a 3d design of the robot to him and Ansar made the metallic model)MaterialsWe made two robots A&BRobot A2 LEGO EV3 brains8 LEGO NXT motors12 LEGO Gear with 40 teeth12 LEGO Gear with 24 Teeth 2 LEGO EV3 ultrasonic sensors2 LEGO EV3 color sensorsOne metallic blade12 cablesTwo lego ev3 batteriesRobot B :ArduPRO Robot Controller (With Arduino Nano)2 QTR1A Contrast (Edge) Sensor5 Mz80 Infrared SensorCytron SmartDriveDuo Smart Dual Channel 10A Motor Driver4 DC 12V 300RPM Geared Motor High Torque 37GB-550 Gear Reducer MotorPROFuse 3S 11.11V high-quality Li-PO battery 1750mAh 25CFour silicon wheelsWiresBladeThe metallic body9V battery ENERGIZERScrewsProceduresAccording to the competition construction of a robot needs to be of specified dimensions of the minimum width of 20 cm, and the maximum length of 20 cm but the height isn’t defined. Also, it is vital to consider the shape of the robot as well as the weight that should not exceed their kilograms. For the construction of robot A, the first step is the construction of was to draw a 3-D image of the design. Then the attachment of both the sides, bottoms and the servos, then attaching the battery and lower ramp using Velcro. Then the wheels are screwed in place, and spacers added electronic mounts. The next step us to assemble the ultrasonic and color sensors then adding the upper ramp, before attaching electronics, and attaching Velcro for scanners. Finally, the top components are put in place.For the second robot B, one of its main components is the ArduPRO Robot Controller which acts as the motherboard linking and controlling all the parts of the robot. According to Bagnall (2014), the first step in making this robot is to solder all the electronic system that is used to control the motors together so that they will communicate with each other effectively. The next process is attaching the wheels on to the shaft towards the motors and ensuring that it is tightly fixed. Then the base of the robot is attached ensuring that everything fits together wholly and cleanly. The following step is to attach the back and battery support as well as the front ramp support taking into consideration that they are secured into the place. The next step is to connect the electronics such as the batteries and the wires, before making the wedge of the robot. Finally, the battery and the top of the ramp is fixed and the controller fixes conducted to ensure that the robot moves around quickly.The two robots are then programmed as below:When the program begins, the robot will wait 5 seconds later the two arms will drop with the blade, after that, it will move straight 20cm then the robot will start rotating until the Ultrasonic sensors detect the opponent, after that the robot will attack the opponent and strike it by the blade from dawn. If the robot reaches the white line, the light sensors will command the robot to turn back to avoid the corner.The structures of the robots regarding it components and body shape greatly determined how well a robot performs in a fight. When installed with motors of different types, two different robots will have different revolutions per minute influencing its speed increasing it prey instincts. Also, these motors have the different torque that gives different strengths to any two robots possessing two different motors. Torque determines that strength of the robot and how effectively a robot will attack another robot in the first instances by overcoming friction (Liu and Zhang, 2004). Also, the type of intelligence system will determine the number of strategies that robots will be able to be programmed in, during a fight. For example, Arduino used in robot B can be programmed to run three different strategies at a go, unlike robot A which can only a single programmed at a go, giving a competitive advantage to the robot B. Robot (B) has three different strategies it must be chosen before the match. The first strategy goes straight to the opponent; the second goes right The attack on the opponent, the third go left the attack the opponent. Due to the five IR sensor no need for rotating to find the opponent the robot will directly find it and Attack. In all strategies, the robot moves back when it sees the white ring of the match table.ResultsThe results of a sumo fight between the two robots A and B produced the expected win the robot B. The success is a contribution of various factors such as the strengths, speed, and torque of the robot B with regards to robot A. Whereas robot B is fitted with the, Cytron SmartDriveDuo Smart Dual Channel 10A Motor Driverand 4 DC 12V 300RPM Geared Motor High Torque 37GB-550 Gear Reducer Motor, robot A is equipped with 8 LEGO NXT motors. The motors in the robot B are much stronger regarding torque and the revolutions per minutes providing making robot B stronger and faster than robot A.For robot A, the measured torque is 220.4 N/cm with an 88.5 rpm hence determining its speed, and also the programming strategy of this robot allows only one approach at a time. The advantage robot B has over robot A is indicated in the number of rpm and torque that is 300 and 220 N/m, making the robot b faster, stronger and agiler than robot A in the sumo robotics. Also, another advantage is that, unlike the robot A, robot B can be programmed with three different strategies of fighting, giving it a competitive edge in the fight.It is with the advantage that robot B possesses over robot A regarding torque, rpm, and agility that gave robot B a win over the robot A. Robot B is much stronger as a result of the direct impacts of these advantages, which give it a competitive edge on the battle ring.Discussion(ROBOT B) Emerged victorious because of the different three strategies along with the speed and high torque. Also, robot (B) won because of the top features of the body and the policies that were used in programming the robot won all competitions quickly and without spending any efforts.However, Robot A similarly had great features and successful programming, but the robot couldn’t win the match with the robot (b) because robot B is much stronger than a robot (A). But in the end, robot (A) won the national competition with the 3rd place.ReferencesBagnall, B. (2014). Maximum LEGO EV3: Building Robots with Java Brains. Variant Press.Benavidez, P., Gleinser, C., Jaimes, A., Labrado, J., Riojas, C., Jamshidi, M., & Endowed, L. B. (2012, June). Design of semi-autonomous robots for competitive robotics. In World Automation Congress (WAC), 2012 (pp. 1-6). IEEE.Do, H. M., Kim, G. H., Choi, T. Y., Kim, D. H., & Son, Y. (2016, August). Development of simulation model for modular and reconfigurable robots. In Ubiquitous Robots and Ambient Intelligence (URAI), 2016 13th International Conference on(pp. 138-139). IEEE.Liu, J., & Zhang, S. (2004). Multi-phase sumo maneuver learning. Robotica, 22(1), 61-75.Miles, P. (2002). Robot Sumo: The Official Guide. McGraw-Hill, Inc.Wyffels, F., Bruneel, K., Kindermans, P. J., D’Haene, M., Woestyn, P., Bertels, P., & Schrauwen, B. (2011). Robot competitions trick students into learning. In Proceedings of the 2nd International Conference on Robotics in Education, Rio(pp. 47-52).

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