Method and apparatus for minimizing power consumption in a navigation system

• US 9,188,451 B2
• Filed: 02/28/2013
• Issued: 11/17/2015
• Est. Priority Date: 02/28/2013
• Status: Active Grant

• Current Assignee: HERE Global B.V. (Nokia Corporation)
• Original Assignee: HERE Global B.V. (Nokia Corporation)
• Inventors: Magnusson, Birgir, Tuukkanen, Marko Tapio
• Primary Examiner(s): Tarcza, Thomas
• Assistant Examiner(s): EVANS, GARRETT F
• Application Number:
  US13/781,077
• Publication Number:
  US 20140244156A1
• Time in Patent Office: 992 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: G01C 21/30 Map- or contour-matching
• CPC Class Codes: G01C 21/34 Route searching; Route guidance

Abstract

An approach is provided for providing mechanisms to minimize power consumption in a navigation system while allowing for various levels of functionality and accuracy. A device may process telematics information and/or sensor information associated with at least one vehicle to determine an estimated location of the vehicle. Then the device may cause a comparison of the estimated location against available mapping data. Further, the device may determine whether to determine a sensed location of the vehicle via one or more location sensors based, at least in part, on the comparison.

Claims

1. A method comprising:

processing, by an apparatus, sensor information from one or more sensors associated with at least one vehicle to determine an estimated location of the vehicle, while one or more other sensors are deactivated, wherein the one or more sensors are attached to the at least one vehicle, and the one or more other sensors include at least one global positioning system receiver built in at least one mobile user device;

comparing, by the apparatus, the estimated location against mapping data to determine a deviation of the estimated location with reference to the mapping data; and

updating, by the apparatus, a location of the vehicle via activating the one or more other sensors when the deviation meets a threshold value.

2. The method of claim 1, wherein the apparatus further processes telematics information associated with the at least one vehicle to determine the estimated location of the vehicle, and the telematics information indicates, at least in part, a location of the vehicle, a movement of the vehicle, a status of the vehicle, or a combination thereof, and wherein the one or more sensors include one or more vehicle diagnostic sensors, one or more vehicle information sensors, or a combination thereof.

3. The method of claim 1, wherein the estimated location of the vehicle is determined based, at least in part, on a vehicle location history, a user history, or a combination thereof, without real-time location data received from a source external to the vehicle, and

the deviation indicates an inaccuracy of the estimated location with reference to the mapping data.

4. The method of claim 3, further comprising:

causing, at least in part, an activation of the one or more other sensors based, at least in part, on the deviation,

wherein the one or more sensors include one or more magnetometers, one or more accelerometers, one or more odometer sensors, one or more steering control sensors, one or more speedometers, or a combination thereof.

5. The method of claim 4, wherein the activation of the one or more other sensors is further based, at least in part, on a travel route, a destination, a threshold associated with the deviation, or a combination thereof.

6. The method of claim 4, wherein the activation of the one or more other sensors is based, at least in part, on a power level associated with the vehicle, one or more devices associated with the vehicle, or a combination thereof.

7. The method of claim 1, wherein the location of the vehicle is updated by the one or more other sensors based, at least in part, on data from a satellite-based navigation system, a network-assisted navigation system, one or more sensors external to the vehicle, or a combination thereof.

8. The method of claim 1, further comprising:

determining directional information of the vehicle based, at least in part, on data from one or more sensors associated with a steering control of the vehicle, while the one or more other sensors are deactivated; and

updating the estimated location based, at least in part, on the directional information.

9. The method of claim 1, wherein the mapping data is available via an in-vehicle system, via one or more devices in the vehicle, via one or more service providers, via one or more content providers, or a combination thereof, while the one or more other sensors are deactivated.

10. The method of claim 1, wherein the estimated location is determined based, at least in part, on the vehicle location history, a user history, or a combination thereof, while the one or more other sensors are deactivated.

11. An apparatus comprising:

at least one processor; and

at least one memory including computer program code for one or more programs,

the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following,

process sensor information from one or more sensors associated with at least one vehicle to determine an estimated location of the vehicle, while one or more other sensors are deactivated, wherein the one or more sensors are attached to the at least one vehicle, and the one or more other sensors include at least one global positioning system receiver built in the at least one mobile user device;

compare the estimated location against mapping data to determine a deviation of the estimated location with reference to the mapping data; and

update a location of the vehicle via activating the one or more other sensors when the deviation meets a threshold value.

12. The apparatus of claim 11, wherein the apparatus further processes telematics information associated with the at least one vehicle to determine the estimated location of the vehicle, and the telematics information indicates, at least in part, a location of the vehicle, a movement of the vehicle, a status of the vehicle, or a combination thereof.

13. The apparatus of claim 11, wherein the deviation indicates an inaccuracy of the estimated location with reference to the mapping data of the estimated location with reference to the mapping data.

14. The apparatus of claim 13, wherein the apparatus is further caused to:

cause, at least in part, an activation of the one or more other sensors based, at least in part, on the deviation.

15. The apparatus of claim 14, wherein the apparatus is further caused to:

determine a travel route based, at least in part, on a user input; and

cause, at least in part, the activation of the one or more other sensors based, at least in part, on a travel route, a destination, a threshold associated with the deviation, or a combination thereof.

16. The apparatus of claim 14, wherein the activation of the one or more other sensors is based, at least in part, on a power level associated with the vehicle, one or more devices associated with the vehicle, or a combination thereof.

17. The apparatus of claim 11, wherein the location of the vehicle is updated by the one or more other sensors based, at least in part, on data from a satellite-based navigation system, a network-assisted navigation system, one or more sensors external to the vehicle, or a combination thereof.

18. The apparatus of claim 11, wherein the apparatus is further caused to:

determine directional information of the vehicle based, at least in part, on data from one or more sensors associated with a steering control of the vehicle; and

cause, at least in part, an update to the estimated location based, at least in part, on the directional information.

19. The apparatus of claim 11, wherein the mapping data is available via an in-vehicle system, via one or more devices in the vehicle, via one or more service providers, via one or more content providers, or a combination thereof.

20. The apparatus of claim 11, wherein the estimated location is based, at least in part, on the vehicle location history, a user history, or a combination thereof.