Route Guidance Apparatus Main Sub Device Coordination

The patent merges multiple independent navigation devices into a coordinated system where one device acts as a main device and others as sub devices. The sub devices transmit their location information to the main device, which then provides unified route guidance to all devices. This consolidation eliminates the need for separate voice communications between each device pair, improving both communication efficiency and safety by centralizing the guidance function.

The main navigation device serves as an intermediary between the sub devices and the route guidance system. Instead of each sub device communicating independently with external systems or with each other, all communications are routed through the main device, which receives location information from sub devices and distributes appropriate guidance information back to them. This intermediary role streamlines communication and reduces conflicts.

The navigation system automatically determines the location relationship between devices and assigns main or sub device roles without requiring manual configuration or complex user intervention. The devices self-organize into a hierarchical structure based on their relative positions, with the system autonomously managing the complexity of coordination while keeping individual device operations simple.

The system dynamically adjusts the roles of navigation devices based on their changing location relationships. As devices move relative to each other, the system automatically reevaluates and reassigns main or sub device status to maintain optimal coordination. This dynamic adaptation allows the system to handle complex spatial relationships without requiring complex fixed operational procedures from users.