US 2013/0311084 A1Published application

Method and device for indoor positioning

AssigneeSenionLab AB

InventorsCHRISTIAN LUNDQUIST, Per Skoglar, Fredik Gustafsson

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Abstract

The present invention relates to a method for positioning a user inside a building, wherein the user has a user carried device and the device is provided with a direction sensor and a movement sensor. The method includes providing the user carried device with a vector map of the building, wherein the vector map includes vectors and nodes representing possible movement paths for the user in the building; determining a starting point in the vector map, receiving movement information from the movement sensor, receiving direction information from the direction sensor, receiving a magnetic field map at the user carried device, wherein the magnetic field is detectable by the user carried device, and estimating a new position of the user based on the vector map, the movement information, the direction information and the property map.

Claims14

Dependent claims

A method for positioning a user inside a building, wherein the user has a user carried device and the user carried device is provided with a direction sensor and a movement sensor, the method comprising the steps of;

providing the user carried device with a vector map of the building, wherein the vector map comprises vectors and nodes representing possible movement paths for the user in the building,
determining at the user carried device a starting point in the vector map representing a first position of the user,
receiving movement information at the user carried device from the movement sensor regarding movement of the user in the building,
receiving direction information at the user carried device from the direction sensor regarding the direction of the movement of the user,
receiving a property map at the user carried device comprising a map of magnetic field variations in the building, wherein the magnetic field is detectable by the user carried device, and
estimating at the user carried device a new position of the user based on the vector map, the movement information, the direction information and the property map.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/949,020Filed 23 Jul 2013
Priority: 9 Feb 2011
Published: 21 Nov 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

G01C 21/206
Instruments for performing navigational calculations: specially adapted for indoor navigation
G01C 21/005
Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00: with correlation of navigation data from several sources,…
G01C 21/16
Executed aboard the object being navigated; Dead reckoning: by integrating acceleration or speed, i.e. inertial navigation
G01C 21/20
Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00: instruments for performing navigational calculations

Family

Application12/929,690Continuation · filed 9 Feb 2011
Application13/949,020Continuation
US 2012/0203453 A1Published application
US 8,498,811 B2Related patent
US 9,020,752 B2Related patent
US 2013/0311084 A1This patent

From the US filing history. Foreign family members aren’t listed.