Autonomous Guided Vehicles with Wi-Fi Localization for Smart Factory

The autonomous guided vehicle is an important key technology in the smart factory to transfer products or materials within the factory. The significant ability of the AGVs robot is localization, consisting of two types: local and global. Using only local localization may face the problem of losing the robot location track. Consequently, the global localization technique can be applied to eliminate that problem. Wi-Fi technology is one of the interesting technologies to apply in global localization. The Wi-Fi signals can be distributed in various sizes of buildings. Using the existing Wi-Fi devices leads to cost reduction and increases flexibility. Thus, this paper proposes the Wi-Fi technology applied in the AGV robot global localization. Received signal strength indication (RSSI) with trilateration method was utilized to determine the AGV robot location. The proposed approach provides an average positioning error of 2.4 m. For this system, Wi-Fi localization can be located the robot location appropriately.