Patent ID: 9086879
Filing Date: 2015-07-21
Classification: B60R,G06F,G07C

Abstract:
1. A method for conserving power in a remote device, comprising: receiving, at the remote device, a first signal emitted by a vehicle; evaluating motion data from the remote device to determine a movement status of the remote device, wherein the evaluating is performed in response to receiving the first signal; and transitioning a first wireless communication module of the remote device from a low power mode to an active mode, when the motion data indicates that the remote device is moving; establishing a communication connection between the first wireless communication module and a second wireless communication module of the vehicle, wherein the communication connection is established when the vehicle determines: wherein the determining that the remote device is approaching the vehicle comprises: obtaining a plurality of triangulated positions of the remote device and associated time values using a plurality of antennas on the vehicle; determining a distance from the vehicle for each of the plurality of triangulated positions; and evaluating the distance from the vehicle for each of the plurality of triangulated positions at each of the associated time values.