Bunyarittikit, Suphat

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Bunyarittikit, Suphat
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suphat.bu@kmitl.ac.th

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    Item type:Publication,
    Generative Design Process for Alternative Creation of Architectural Design: Application of Willis Tower Shading Analysis Case Study
    (2023-01-01)
    Suphavarophas, Phattranis
    ;
    Keonil, Nuchnapang
    ;
    Bunyarittikit, Suphat
    Generative design is a type of popular computational design providing a simple alternative design that is important instance to architectural design. This study aimed to examine generative design process to better understanding, and building an instruction set by repeat experiment methodology through case study. Willis Tower Shading Analysis was applied using variables that cause differences design options of nine sorted tubes alternate automation tower of 30-, 60- and 90-meters height. Forty-five design options were generated from generative design process, selected variables used in design options including building area, shadow area, neighbor building overshadowing and park overshadowing. It was found that generative design was a quick, modest and practical process that was easy for appropriate analysis. Additionally, input data and instruction for generating multiple output design options could be set for selecting of an option and the process could be reversed for designers required options.
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    Item type:Publication,
    Wireless Automated Exhibition System: Convenient Mobility at Low Cost
    (2025-01-01)
    Hirunwijitporn, Nirumol
    ;
    Jongchanachavawat, Wirote
    ;
    Bunyarittikit, Suphat
    ;
    Mingmuang, Noppon
    ;
    Roopkom, Ittipat
    The application of wireless automatic exhibition system for event promotion facilitates the organization of exhibition-related activities by enabling automated control of exhibition displays. This system eliminates the need for allocating personnel to monitor the exhibition, thus reducing the cost of hiring exhibition attendants. From this research, it is possible to create a low-cost wireless automatic exhibition display system that is convenient for use in various events and exhibitions, especially when there are numerous booths involved. The system utilizes infrared sensors to detect visitors within a range of 90 cm, enabling accurate visitor counting. Once the desired number of visitors is reached, the exhibition will be displayed immediately. Additionally, the system can detect exiting visitors while the exhibition is ongoing. When the specified visitor count is met, the exhibition display will stop instantly. Due to these features, this wireless automatic exhibition system is affordable, easily portable, and suitable for various events and exhibitions. It is user-friendly and convenient for deployment.
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    Item type:Publication,
    A Low-Cost Obstacle Avoidance System Prototype for Autonomous Wheelchairs Using a Servo-Mounted Ultrasonic Sensor
    (2026-01-01)
    Jongchanachavawat, Wirote
    ;
    Mingmuang, Noppon
    ;
    Ployjirapas, Chayut
    ;
    Nanan, Kwanchai
    ;
    Oiumekha, Kamonwan
    This research presents the development of a low-cost obstacle avoidance prototype designed for mobile robotic applications, with a potential use case in autonomous wheelchairs. The system utilizes a single ultrasonic sensor mounted on a servo motor to perform multi-directional distance scanning, allowing the robot to detect and avoid obstacles in real time. An Arduino-based control algorithm interprets distance measurements at four predefined angles (30°, 60°, 120°, and 150°), enabling the robot to make navigation decisions including forward movement, turns, and retreating actions. The system was tested under various conditions: with obstacles in front, in front-left, and in all directions (front, left, and right). Results showed a 100% success rate in the simple frontal obstacle scenario, 80% in the front-left obstacle case, and 60% in the most complex environment with obstacles on three sides. The primary cause of failure was the sensor’s limitation in detecting very close objects (less than 2 cm). The findings confirm the feasibility of implementing this single-sensor approach in low-cost assistive mobility devices. The prototype demonstrates effective navigation capabilities and provides a practical foundation for future development of intelligent obstacle-avoidance systems for autonomous wheelchairs.