INDOORATLAS OY Patent applications |
Patent application number | Title | Published |
20160135012 | APPLYING INDOOR MAGNETIC FIELDS FOR ACQUIRING MOVEMENT INFORMATION - An apparatus caused at least to acquire information indicating first indoor magnetic field vectors measured by a first portable device inside a building; generate a first indoor magnetic field sequence, IMFS, on the basis of the first indoor magnetic field vectors; acquire information indicating second indoor magnetic field vectors measured by a second portable device inside the building; generate a second IMFS on the basis of the second indoor magnetic field vectors, wherein the first and the second IMFSs represent at least one of the magnitude and the direction of the Earth's magnetic field; perform a comparison between at least part of the first IMFS and at least part of the second IMFS; and acquire information on the relative movement of the first portable device with respect to the second portable device inside the building on the basis of the comparison result. | 05-12-2016 |
20150260524 | UTILIZING MAGNETIC FIELD BASED NAVIGATION - There is provided a solution comprising detecting that a positioning device is within a predetermined control area associated with a building, acquiring a first sequence of magnetic field measurements carried out by the positioning device, wherein the first sequence represents at least one of the magnitude and the direction of Earth's magnetic field; determining that an operational environment of the positioning de-vice has changed between an indoor environment and an outdoor environment when a at least one predetermined criterion with respect to the first sequence is met; and causing actuation of a predetermined software function in or with respect to the positioning device when the operational environment of the positioning device has changed. | 09-17-2015 |
20140357305 | ORIENTATION OF MOBILE DEVICE MEASURING EARTH'S MAGNETIC FIELD INDOORS - There is provided an apparatus configured to: acquire Earth's magnetic field, EMF, measurement results indicating the EMF measured by a mobile device in a building, wherein the EMF measurements are performed by the mobile device in an unknown three-dimensional orientation in a three-dimensional coordinate system of a person carrying the mobile device along a movement direction of the person; acquire motion data of the mobile device, wherein the motion data is measured by at least one inertial measurement unit comprised in the mobile device; determine at least one angle estimate of a difference between the three-dimensional orientation of the mobile device and at least one dominant movement direction on the basis of at least one feature related to the at least one dominant movement direction of the mobile device; and adjust the acquired EMF measurement results on the basis of the determined at least one angle estimate. | 12-04-2014 |
20140286534 | GENERATING MAGNETIC FIELD MAP FOR INDOOR POSITIONING - Disclosed is an apparatus caused to acquire information indicating a measured magnetic field vector and information relating to an uncertainty measure of the measured magnetic field vector in at least one known location inside the building, wherein the indicated magnetic field vector represents magnitude and direction of the earth's magnetic field affected by the local structures of the building, and to generate the indoor magnetic field map for at least part of the building on the basis of at least the acquired information and the floor plan. | 09-25-2014 |
20130310069 | UTILIZING MAGNETIC FIELD BASED NAVIGATION - There is provided a solution comprising detecting that a positioning device is within a predetermined control area associated with a building, acquiring a first sequence of magnetic field measurements carried out by the positioning device, wherein the first sequence represents at least one of the magnitude and the direction of Earth's magnetic field; determining that an operational environment of the positioning de-vice has changed between an indoor environment and an outdoor environment when a at least one predetermined criterion with respect to the first sequence is met; and causing actuation of a predetermined software function in or with respect to the positioning device when the operational environment of the positioning device has changed. | 11-21-2013 |
20130179075 | INDOOR MAGNETIC FIELD BASED LOCATION DISCOVERY - There is provided an apparatus, wherein the apparatus is caused to acquire a location estimate of a positioning device that is to determine its location inside a building, wherein the location estimate is acquired on the basis of an indoor non-magnetic field based location discovery system; access an indoor Earth's magnetic field, EMF, map of plurality of buildings, wherein the indoor EMF map represents at least one of magnitude and direction of the Earth's magnetic field affected by the local structures of a corresponding building; and select a part of the indoor EMF map on the basis of the location estimate of the positioning device, wherein the selected part of the indoor magnetic field map includes the indoor EMF map for the area in which the positioning device currently is. | 07-11-2013 |
20130179074 | UTILIZING MAGNETIC FIELD BASED NAVIGATION - There is provided a solution comprising detecting that a positioning device is within a predetermined control area associated with a building, acquiring a first sequence of magnetic field measurements carried out by the positioning device, wherein the first sequence represents at least one of the magnitude and the direction of Earth's magnetic field; determining that an operational environment of the positioning de-vice has changed between an indoor environment and an outdoor environment when a at least one predetermined criterion with respect to the first sequence is met; and causing actuation of a predetermined software function in or with respect to the positioning device when the operational environment of the positioning device has changed. | 07-11-2013 |
20130177208 | GENERATING MAGNETIC FIELD MAP FOR INDOOR POSITIONING - There is provided an apparatus caused to acquire information indicating a measured magnetic field vector and information relating to an uncertainty measure of the measured magnetic field vector in at least one known location inside the building, wherein the indicated magnetic field vector represents magnitude and direction of the earth's magnetic field affected by the local structures of the building, and to generate the indoor magnetic field map for at least part of the building on the basis of at least the acquired information and the floor plan. | 07-11-2013 |