Pada masa kini, pergerakan menegak dan mendatar kamera semakin digunakan
dalam aplikasi robotik dan penglihatan mesin. Bagi projek ini, pergerakan menegak dan
mendatar kamera dibina berdasarkan dua motor servo. Satu motor servo digunakan
untuk pergerakan menegak manakala motor servo yang satu lagi digunakan untuk
pergerakan mendatar. Peranti pedal permainan dan komputer telah digunakan untuk
mengawal pergerakan menegak dan mendatar. Bagi projek ini, dua mikropengawal
telah digunakan. Satu mikropengawal digunakan untuk menerima isyarat daripada
peranti pedal permainan dan komputer. Selepas itu, isyarat akan dihantar ke
mikropengawal lain di lokasi kamera. Mikropengawal di lokasi kamera disambung
kepada duo motor servo untuk melaksanakan pergerakan menegak dan mendatar. Dua
mikropengawal berkomunikasi dengan menggunakan sepasang RF penerima dan
penghantar tanpa wayar. Kamera yang digunakan dalam projek ini adalah kamera tanpa
wayar bersama dengan penerimanya. Kamera tanpa wayar dipasangkan di atas motor
servo manakala penerima disambungkan kepada Altera DE2-70. Altera DE2-70
digunakan untuk memperoleh imej dan memaparkan imej melalui VGA ke monitor.
NiosII pemproses dari Altera DE2-70 digunakan untuk menangkap imej dan
meningkatkan kontras imej. Akhirnya, imej disimpan sebagai fail bitmap di dalam
komputer. Kesimpulannya, sistem pergerakan menegak dan mendatar kamera berjaya
dibina dan boleh digunakan dalam aplikasi robotic dan penglihatan mesin.
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Nowadays, tilt and pan cameras have been increasingly implemented in robotic
and machine vision applications. In this project, a tilt and pan system was developed
based on two servo motors. One of the servo motors is used to perform the tilt motion
while the other servo motor is used for the pan motion. The thumb joystick and
computer is used to control the motion of the tilt and pan. In this project, there are two
microcontrollers to be used. One of the microcontrollers is responsible to receive the
signals from the joystick and computer. After that, the signals are transmitted to another
microcontroller located at camera location. The microcontroller located at the camera
location is connected with two servo motors to perform tilt and pan motion. The
communications between the microcontrollers is implemented through a pair of wireless
RF transmitter and receiver. The camera used in this project is a wireless camera comes
along with the receiver. The wireless camera is mounted on the servo motor while the
receiver is connected to the Altera DE2-70 board. The Altera DE2-70 board is used to
acquire and display the images on monitor through VGA interface. The NiosII
processor from Altera DE2-70 board is used to capture the images and enhance the
contrast of the images. At the end, the image is saved as a bitmap file in the computer.
In conclusion, the tilt and pan system was successfully developed and can be applied in
robotic or machine vision application.
Remote control of tilt and pan camera using microcontroller and fpga / Tiew Weng Khai