returntobase

Returntobase is a term used across multiple fields to denote the action of directing a unit, agent, or device back to its base or home location. In video games and simulations, RTB is an automated command that orders units to retreat to a base, port, or safe zone, often to resupply, repair, or bank resources. It is commonly employed for both AI-controlled units and player-initiated strategies, occurring when a mission is complete, when health or resources are low, or when strategic withdrawal is required.

In robotics and automation, return-to-base refers to a control policy for autonomous agents that navigate to a docking station or charging base. Triggers include low battery, completion of a task, loss of connectivity, or operator command. Implementations rely on sensors, localization, and map data to reach the base safely, and may use GPS, SLAM-based maps, or beacon cues to guide the approach and docking.

In unmanned aerial systems, RTB is a standard safety feature. Drones autonomously route to a base coordinate or home point under low power, poor signal, or after mission completion. RTB behavior may adapt to environmental conditions, airspace restrictions, and battery state to ensure a safe return.

In software engineering, returntobase can be a function name or a state in a program representing the transition to a base state, often within a mission-management or fleet-control framework. The term is sometimes abbreviated RTB or RTBH, and is related to concepts such as return-to-home and docking.