Method and apparatus for efficiently using a battery in a smartphone having a navigation system

A method for efficiently using a battery in a smartphone while operating a navigation system therein comprising managing different location sensors in the navigation system comprising:

• means for generating a route based on an address or a location entered by a driver;
• means for dividing the route into more than one route segment;
• means for determining route complexity in each route segment;
• means for determining geographical nature of the address or location entered by the driver;
• and
• means for automatically switching a current location sensor to another location sensor in the navigation system when the route complexity or geographical nature changes, to maximize the usage of the battery in the smartphone.

A smartphone comprising:

• a memory device;
• a control unit;
• and
• a navigation system comprising:
• location sensors with different location accuracies;
• a route generating unit to generate a route based on an address or a location entered by a driver;
• a route dividing unit to divide said route into different route segments;
• a route complexity determining unit to determine complexity of each route segment;
• wherein the control unit is configured to switch a current location sensor to another location sensor in the navigation system when the route complexity or geographical nature changes, to maximize the usage of the battery in the smartphone.