Fingerprint data pre-process method for improving localization model
AssigneeInternational Business Machines Corporation
InventorsMasayuki Murata, Daisuke Sato
Life of this patent
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Abstract
Provided is a computer-implemented method including acquiring a first pieces of observation data that include a position of a mobile object and a received signal strength of a wireless signal observed by the mobile object; and correcting each position of the mobile object included in each piece of observation data of the first pieces of observation data using one position of the mobile object at a time before the received signal strength included in the piece of observation data is observed.
Claims25
A computer-implemented method comprising:
- acquiring a first plurality of pieces of observation data that each include a position of a mobile object and a received signal strength of a wireless signal observed by the mobile object;
- and
- correcting each position of the mobile object included in each piece of observation data of the first plurality of pieces of observation data using at least one position of the mobile object at a time before the received signal strength included in the piece of observation data is observed.
A computer-implemented method comprising:
- acquiring a received signal strength distribution that includes a received signal strength of a wireless signal at each of a plurality of positions;
- and
- generating a received signal strength distribution in which a distribution of the plurality of positions included in the received signal strength distribution have been made uniform, by extracting each received signal strength corresponding to some of the positions among the plurality of positions from the received signal strength distribution.
A computer program product for generating a received signal strength distribution, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a device to cause the device to perform operations comprising:
- acquiring a first plurality of pieces of observation data that each include a position of a mobile object and a received signal strength of a wireless signal observed by the mobile object;
- and
- correcting each position of the mobile object included in each piece of observation data of the first plurality of pieces of observation data using at least one position of the mobile object at time before the received signal strength included in the piece of observation data is observed.
A computer program product for generating a received signal strength distribution, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a device to cause the device to perform operations comprising:
- acquiring a received signal strength distribution that includes a received signal strength of a wireless signal at each of a plurality of positions;
- and
- generating a received signal strength distribution in which a distribution of the plurality of positions included in the received signal strength distribution have been made uniform, by extracting each received signal strength corresponding to some of the positions among the plurality of positions from the received signal strength distribution.
An apparatus comprising:
- an acquiring section that acquires first plurality of pieces of observation data that each include a position of a mobile object and a received signal strength of a wireless signal observed by the mobile object;
- and
- a correcting section that corrects each position of the mobile object included in each piece of observation data of the first plurality of pieces of observation data using at least one position of the mobile object at time before the received signal strength included in the piece of observation data is observed.
Dependencies are inferred from the claim text.