The advancement in 5G technology has emerged as an enabler across a wide range of industries advancement in recent years, especially for those requiring low tolerance in latency for high-speed data transmission. With a primary focus on Human-Robot Interaction (HRI), this paper proposes an intuitive and user-friendly design on mobile robot tele-operation system to exploit 5G's advantages. Unlike traditional remote control with limited signal range and single-direction command control, our design demonstrates an interactive approach for 5G tele-operation, empowering an active and instant two-way interaction between pilots and robots with the aids of control, visual, audible, and haptic cues, to minimize incident rate.

In-building cross-floor delivery has always been a common daily task for business, but its robot-oriented automation has never been a popular convention due to the high infrastructural or developmental cost and the difficulties of having physical elevator-ride for common robots. This paper thus aims to contribute a universal robot-oriented elevator-ride workflow that adopts different visual and audible human-like touchpoints to achieve automated robot-elevator interaction, while ensuring the physical safety and emotional security of surrounding pedestrians and elevator passengers. Investigating the handling for potential elevator-ride scenarios and observing the interactions between humans and the robot under the influence of such human-like touchpoints, this paper offers empirical suggestions as to how in-building travel of robots can be pedestrians and passengers friendly.