Patent ID: 9207083
Filing Date: 2015-12-08
Classification: G01C

Abstract:
1. A computer-implemented navigation method for tracking a second electronic device using a first electronic device, the first electronic device comprising a first global positioning system (GPS), and the second electronic device comprising a second GPS, the method comprising: receiving position information of the second electronic device; acquiring position information of the first electronic device from the first GPS; calculating a distance between the first electronic device and the second electronic device according to the position information of the first electronic device and the second electronic device; choosing a navigation map according to the position information of the first electronic device and the second electronic device; marking a position of the second electronic device on the navigation map; starting to track the second electronic device when the distance is greater than a threshold value; directing the first electronic device to track the second electronic device according to the marked position on the navigation map; and stopping tracking the second electronic device when the distance is less than the threshold value.