DESIGN OF DRIVE, DUST CLEANING, AND POWER SUPPLY SUBSYSTEMS ON HVAC MAINTENANCE ROBOT SYSTEM

• Main Author: Wijaya, Fadhil
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/43018
• Institution: Institut Teknologi Bandung

HVAC systems has two main problems, namely dust and leakage problem. The current solution for dust problem is to clean manually by human, so it can not be cleaned thoroughly to the middle of the HVAC systems. Even though, according to research the middle of the HVAC is the most containing dust. The current solution for leakage problem is to check every point on HVAC systems, so service provider must open the ceiling of the building to look for leakage position. Based on the problems, we create Maintenance Robot of HVAC Systems. The robot has several main functions such as automatic movement on HVAC systems, dust cleaning, leakage detection, mapping, displaying the map and leakage position on the application. The robotic system requires drive subsystem that uses a mini gearbox dc motor controlled by a closed loop controller with a differential steering approach, dust cleaning subsystem that uses sponge with wiping mechanism pushed by movement of robots on HVAC systems, and power supply subsystem uses Lipo batteries, dc-dc buck converters, and regulators. The test results show that the robot dimension is 20.86 cm x 17.24 cm x 9.34 cm and the robot mass is 915.1 grams so that the robot can operate in the 10 cm x 30 cm HVAC systems, robot can turn, stop, and move forward in the middle of the HVAC, and orientation adjustment, robot do the movement of cleaning dust that reaches most of HVAC surface with the remaining dust 2.5 g/m2, power supply subsystem must be removable, rechargeable, and portable with 8 volts, 5 volts, and 3.3 volts voltage level, robot is able to operate in the HVAC systems for 2 hours 10 minutes and can travel up to 538 meters.