Laporan ini adalah mengenai penambahbaikan reka bentuk dan fabrikasi roda untuk
mesin melontar bola. Pada zaman ini, Internet of Thing (IoT) adalah salah satu perkataan
yang biasa di sebut di dalam lingkaran teknologi. Hal ini kerana, teknologi inilah yang
diguna pada hari ini. Di sebabkan inilah kenapa mesin melontar bola ini harus
ditambahbaikan dengan teknologi IoT. Mesin melontar bola boleh digunakan di dalam
banyak sukan seperti sofbol, besbol, kriket dan banyak lagi. Sebagai contoh, di dalam
sukan kriket, si pembaling bola di panggil sebagai bowler. Dalam aplikasi ini, mesin
melontar bola di gunakan di dalam latihan memukul. Di Malaysia, tiada pengeluar mesin
melontar bola yang berlesen. Jadi, mesin ini haruslah di bangunkan dan ditambahbaik
selari dengan teknologi yang sedang membangun. Terdapat tiga objektif utama di dalam
projek ini. Pertama ialah untuk menambahbaik mesin melontar bola supaya boleh di
kawal hanya melalui internet. Mesin ini ada doa roda yang dikawal oleh Arduino Mega.
Cytron WiFi modul diguna untuk menghantar dan menerima data melalui internet.
Keduanya ialah untuk menambah sensor ultrasonic untuk mengesan sebarang halangan
di hadapan mesin yang sedang beroperasi. Ketiga ialah untuk membina alat kawalan yang
baru menggantikan alat kawalan sebelumnya yang telah rosak. Bagi mendapatkan
keputusan, prototaip telah menjalani beberapa ujian seperti halaju awal bola, jenis
putaran bola, perjalanan jarak dengan bola, arus yang dihasilkan oleh motor apabila bola
ditembak dan lain-lain. Pemerhatian dan data telah dijadualkan dan graf telah dilakar
untuk mendapatkan persamaan yang berkaitan. Keputusannya, keselamatan mesin telah
berjaya ditambahbaik. Mesin akan berhenti secara perlahan apabila sensor ultrasonic
mengesan gangguan di hadapan mesin. Halaju bola dibandingkan dengan halaju
tangential dengan peratusan. Untuk kelajuan perlahan, sederhana dan laju, peratusannya
ialah 72.88%, 64.09%, 48.15% mengikut turutan.
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This report is about the Improvement of Roller Design and Fabrication for a Ball
Throwing Machine. Nowadays, Internet of Things (IoT) are one of the most common
buzzwords in technology circles right now. This is because the technologies are in use
today. So, that is why this ball throwing machine should be improved with IoT
technologies. Ball throwing machine can be used in many sport games such as softball,
baseball, cricket and many more. For example, in cricket games, the one who throw the
balls is called as bowler. In this application, the ball throwing machine is used in batting
training. In Malaysia, there are no registered cricket bowling machine manufacturers
available. So, this machine should be developed and improves in technologies that are
being advanced. There are three main objectives of this project. First is to improve the
ball throwing machine, so that it can be controlled through the internet. This machine
consists of two wheels that controlled by Arduino Mega. Cytron WiFi module is used to
transmit and receive data through the internets. Second is to improve the safety part of
the machine by adding ultrasonic ranger to detect any interference in front of the
operating machine. Third is to build a new controller for the ball throwing machine as the
previous controller was broken. To get the result, the prototype had undergone some tests
such as the initial velocity of the ball, type of ball spin, distance travel by the ball, current
drawn from the motor when the ball shot out and many others. The observation and data
were tabulated and the related graphs were sketched to obtain related equations. As the
result, the safety part has successfully improved. The machine will slowly stop if the
ultrasonic sensor detect interference in front of the operating machine. The ball velocity
is then compared to the tangential velocity by percentage. For slow, medium and fast
speed, the percentage are 72.88%, 64.09% and 48.15% respectively.
Improvement of a ball throwing machine / Muhammad Nursyafiq Ismail