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ABSTRACT
A Development of a Golf Ball Trajectory Simulator Using ARM Cortex-M3 Processor
by Lee, Hee-Jin
Advisor : Prof. Cha, Dong-Hyuk, Ph.D.
Course for Knowledg-based Technology
(Robotics and Intelligent Control System)
Graduate School of Knowledge-based
Technology and Energy
Korea Polytechnic University
The purpose of this paper is a development of a golf ball trajectory simulator which considers the non-linear characteristics of the trajectory and the limited initial condition data.
The golf ball trajectory has non-linear characteristics which are determined by the various factors such as the initial impact conditions, the dimple of a golf ball, and so on. and sensors can provides limited initial impact condition data such as club speed, angle of club path, launching angle, etc. so, novel motion equation is designed with considering these limited impact conditions.
To consider the non-linear characteristics of the golf ball trajectory, novel drag force coefficient model with can comply the data measured in real world has been proposed. and new drag force coefficient model is applied to motion equation of golf ball.
The golf ball trajectory simulator system which implements the proposed simulator in hardware is consist of microcontroller board and simulation software. The microcontroller board is designed with a ARM Cortex-M3 based STM32F103 microprocessor. The simulation software is developed with the novel drag force coefficient model, and the results are shown on a android 3D Graphics application which runs on a smartphone using android operating system.
The validity of the novel drag force coefficient model has been verified through a series of study which compares the simulation results to the real data measured in the actual world.
A Development of a Golf Ball Trajectory Simulator Using ARM Cortex-M3 Processor
by Lee, Hee-Jin
Advisor : Prof. Cha, Dong-Hyuk, Ph.D.
Course for Knowledg-based Technology
(Robotics and Intelligent Control System)
Graduate School of Knowledge-based
Technology and Energy
Korea Polytechnic University
The purpose of this paper is a development of a golf ball trajectory simulator which considers the non-linear characteristics of the trajectory and the limited initial condition data.
The golf ball trajectory has non-linear characteristics which are determined by the various factors such as the initial impact conditions, the dimple of a golf ball, and so on. and sensors can provides limited initial impact condition data such as club speed, angle of club path, launching angle, etc. so, novel motion equation is designed with considering these limited impact conditions.
To consider the non-linear characteristics of the golf ball trajectory, novel drag force coefficient model with can comply the data measured in real world has been proposed. and new drag force coefficient model is applied to motion equation of golf ball.
The golf ball trajectory simulator system which implements the proposed simulator in hardware is consist of microcontroller board and simulation software. The microcontroller board is designed with a ARM Cortex-M3 based STM32F103 microprocessor. The simulation software is developed with the novel drag force coefficient model, and the results are shown on a android 3D Graphics application which runs on a smartphone using android operating system.
The validity of the novel drag force coefficient model has been verified through a series of study which compares the simulation results to the real data measured in the actual world.
목차
목 차목 차----------------------------------------------------------------------ⅰ표 목 차---------------------------------------------------------------------ⅱ그림목차---------------------------------------------------------------------ⅳ국문요약---------------------------------------------------------------------ⅶ제 1 장 서 론---------------------------------------------------------------------11.1 연구 동기 및 목적-------------------------------------------------------11.2 논문 구성----------------------------------------------------------------------4제 2 장 골프공의 비행 궤적 모델링-----------------------------52.1 골프공의 운동방정식---------------------------------------------------52.1.1 항력과 양력----------------------------------------------------------------72.1.2 골프공의 회전-------------------------------------------------------------82.2 골프공의 비행조건-----------------------------------------------------112.2.1 초기 타격 조건----------------------------------------------------------112.2.2 골프공의 회전-----------------------------------------------------------132.2.3 항력계수 모델-----------------------------------------------------------142.3 비행 궤적 시뮬레이션 윈도우 프로그램-------------------19제 3 장 비행 궤적 시뮬레이터 설계---------------------------213.1 STM32F103을 이용한 MCU 보드 설계---------------------213.1.1 STM32F103의 특징-----------------------------------------------------213.1.2 MCU 보드의 구성 요소 및 설계---------------------------------253.1.3 I/O 보드의 구성 요소 및 설계------------------------------------303.2 골프공의 비행 궤적 시뮬레이션 프로그램---------------343.3 시뮬레이션 결과 출력 프로그램-------------------------------363.3.1 블루투스 통신 모듈----------------------------------------------------373.3.2 데이터 파일 관리 모듈-----------------------------------------------433.3.3 OpenGL ES를 이용한 비행 궤적 출력 모듈-----------------46제 4 장 비행 궤적 시뮬레이션 실험 및 결과-----------524.1 윈도우 비행 궤적 시뮬레이션 프로그램 실험----------524.2 MCU 보드 비행 궤적 시뮬레이션 프로그램 실험---544.3 실험결과 및 고찰-------------------------------------------------------56제 5 장 결론-----------------------------------------------------------------------65참고문헌--------------------------------------------------------------------------------67ABSTRACT----------------------------------------------------------------------------69부 록---------------------------------------------------------------------------------------71감사의 글-------------------------------------------------------------------------------76
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