| 摘要 |
There is provided an apparatus, comprising: at least one processor and at least one memory including a computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus at least to: perform a set of Earth's magnetic field, EMF, measurements inside a building, wherein each EMF measurement result represents at least one of a magnitude and a direction of the EMF in the building;;store the set of EMF measurement results off-line into a memory buffer coupled to the apparatus; and upon detecting a predefined triggering condition, cause a transfer of the stored set of EMF measurement results to a database entity. |
| 主权项 |
1. A system comprising:
a mobile apparatus comprising at least one first processor and at least one first memory including a first computer program code; and a database entity in a network, the database entity comprising at least one second processor and at least one second memory including a second computer program code, wherein the at least one first memory and the first computer program code of the mobile apparatus are configured, with the at least one first processor of the mobile apparatus, to cause the mobile apparatus at least to:
perform a set of Earth's magnetic field (EMF) measurements inside a building, wherein each EMF measurement result represents at least one of a magnitude and a direction of the EMF in the building;store the set of the EMF measurement results off-line into a memory buffer coupled to the mobile apparatus; andupon detecting a predefined triggering condition, cause a transfer of the stored set of the EMF measurement results to the database entity, wherein the at least one second memory and the second computer program code of the database entity are configured, with the at least one second processor of the database entity, to cause the database entity at least to:
store an indoor EMF data representing at least one of magnitude and direction of the EMF in the building;cause a reception of the stored set of the EMF measurement results from the mobile apparatus, wherein each EMF measurement result of the set represents at least one of the magnitude and the direction of the EMF in the building and is determined and stored by the mobile apparatus moving in the building;compare the received stored set of the EMF measurement results to the stored indoor EMF data;determine, on the basis of the comparison, information about movements of the person associated with the mobile apparatus;cause a reception of a set of stored inertial measurement results from the mobile apparatus, wherein each inertial measurement result is determined and stored by the mobile apparatus in the building and represents at least one of the following with respect to the movement of the mobile apparatus: velocity, acceleration, orientation, distance travelled, stride-related information; andapply the received set of inertial measurement results for the determination of the information about movements of the person associated with the mobile apparatus. |
