Mobile navigation to a moving destination

摘要

A source device can navigate towards a moving destination target device, such as when two mobile phones are moving towards each other. The source device can receive an initial position of the target and a route to the target. As the source device and target device simultaneously move, the route can be updated. For example, if a distance of movement exceeds a threshold (e.g., 1 mile) the route can be updated. In another embodiment, a target device can switch between position tracking devices so as to provide less accurate position information, but save power, or provide high accuracy position information at the cost of higher power consumption. Generally, the switching between position tracking devices and the frequency at which the route to the destination point can be based on the distance apart between the source device and target device.

主权项

1. A method of navigating to a moving client device, comprising:
receiving a position of a target device that is itself moving; displaying, on a source device, the position of the target device on a map together with a first route from the source device to the target device; and while the source device is moving towards the target device, displaying on the source device, an updated second route, different than the first route, from the source device to the target device; further including obtaining the position of the target device using a low-power, low-accuracy, first position tracking device, and switching to a second higher power, and higher accuracy second position tracking device when the source device is within a predetermined distance from the target client device.