Automatic UVC sterilization Robot


  • Pradya Prempraneerach ผู้ช่วยศาสตราจารย์ ภาควิชาวิศวกรรมเครื่องกล คณะวิศวกรรมศาสตร์ มหาวิทยาลัยธรรมศาสตร์ (ศูนย์รังสิต)
  • Chalermkiat Angsuwattana สำเร็จศึกษา หลักสูตรวิศวกรรมศาสตรบัณฑิต สาขาวิชาวิศวกรรมเครื่องกล มหาวิทยาลัยธรรมศาสตร์ (ศูนย์รังสิต)
  • Peeraphon Junlamonton สำเร็จศึกษา หลักสูตรวิศวกรรมศาสตรบัณฑิต สาขาวิชาวิศวกรรมเครื่องกล มหาวิทยาลัยธรรมศาสตร์ (ศูนย์รังสิต)


Autonomous robot, Wall following motion, UVC sterilization


Due to recent pandemic of COVID-19 virus, our research team finds a way to reduce transmission of virus-infection in public areas using UVC irradiance, which can kill viruses effectively. Our research team design and construct autonomous robot, equipped with four 15-watt UVC lamps. This developed 4-wheel robot, driven by 2 back-wheels, can be controlled in 3 different modes using: 1) a radio remote control or 2) smart phone/computer through wi-fi web server, so users can view forward live-stream image from robot or 3) a wall-following autonomous navigation (or Wall keeping mode) using a PD controller so that a distance between robot and wall, measured by 2 ultrasonic sensors, is maintained within 20-40 cm. Then, UVC lamps, which provide USC irradiance between 0.70-0.24 mW/cm2 for a distance range of 26-50 cm, turns on for sterilizing areas at level of doorknob and elevator buttons within 12.5-18 sec to prevent spread of virus in buildings due to user contact.


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