摘要:
There is provided an apparatus for generating an indoor magnetic field map for a building (100), the 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 (100), wherein the indicated magnetic field vector represents magnitude and direction of the earth's magnetic field (208) affected by the local structures of the building (100), and to generate the indoor magnetic field map for at least part of the building (100) on the basis of at least the acquired information and the floor plan.
摘要:
There is provided an apparatus configured to perform operations comprising: acquiring motion data sets from the plurality of mobile devices; estimating route models of the travelled routes on the basis of the motion data sets; generating EMF fingerprints for the travelled routes by associating the acquired EMF data sets with corresponding points of the route models; and determining the locations of the routes with respect to each other on the basis of at least one of the following: the EMF fingerprints and the route models.
摘要:
There is provided an apparatus for generating an indoor magnetic field map for a building (100), the 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 (100), wherein the indicated magnetic field vector represents magnitude and direction of the earth's magnetic field (208) affected by the local structures of the building (100), and to generate the indoor magnetic field map for at least part of the building (100) on the basis of at least the acquired information and the floor plan.
摘要:
There is provided a solution comprising detecting that a positioning device (400) is within a predetermined control area (402A, 402B) associated with a building (100), acquiring a first sequence (420) of magnetic field measurements carried out by the positioning device (400), wherein the first sequence (420) represents at least one of the magnitude and the direction of Earth's magnetic field (208); determining that an operational environment of the positioning de-vice (400) has changed between an indoor environment and an outdoor environment when a at least one predetermined criterion with respect to the first sequence (420) is met; and causing actuation of a predetermined software function in or with respect to the positioning device (400) when the operational environment of the positioning device (400) has changed.
摘要:
There is provided an apparatus for generating an indoor magnetic field map for a building (100), the 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 (100), wherein the indicated magnetic field vector represents magnitude and direction of the earth's magnetic field (208) affected by the local structures of the building (100), and to generate the indoor magnetic field map for at least part of the building (100) on the basis of at least the acquired information and the floor plan.
摘要:
There is provided a solution comprising detecting that a positioning device (400) is within a predetermined control area (402A, 402B) associated with a building (100), acquiring a first sequence (420) of magnetic field measurements carried out by the positioning device (400), wherein the first sequence (420) represents at least one of the magnitude and the direction of Earth's magnetic field (208); determining that an operational environment of the positioning de-vice (400) has changed between an indoor environment and an outdoor environment when a at least one predetermined criterion with respect to the first sequence (420) is met; and causing actuation of a predetermined software function in or with respect to the positioning device (400) when the operational environment of the positioning device (400) has changed.