Method, information processing device and system
AssigneeKabushiki Kaisha Toshiba
InventorGurusanthosh Pabbisetty
Life of this patent
Estimating the term…
Abstract
According to one embodiment, a method includes receiving a first wireless signal transmitted from a first wireless device, receiving a second wireless signal transmitted from a second wireless device, and estimating a range of a propagation loss index corresponding to a space between the first wireless device and an information processing device based on a strength of the first wireless signal at the time of reception, a strength of the second wireless signal at the time of reception, and a distance between the first wireless device and the second wireless device. The propagation loss index is used to convert the strength of the first wireless signal into the distance between the first wireless device and the information processing device.
Claims13
A method executed by an information processing device to obtain a distance between the information processing device and a first wireless device which is installed in a known location and with which the first wireless device can wirelessly communicate, the method comprising:
- receiving a first wireless signal transmitted from the first wireless device;
- receiving a second wireless signal transmitted from at least one second wireless device installed in a known location different from the first wireless device;
- and
- estimating a range of a propagation loss index corresponding to a space between the first wireless device and the information processing device based on a strength of the first wireless signal at the time of reception, a strength of the second wireless signal at the time of reception, and a distance between the first wireless device and the second wireless device, wherein the propagation loss index is used to convert the strength of the first wireless signal at the time of reception into the distance between the first wireless device and the information processing device.
An information processing device which can wirelessly communicate with a first wireless device installed in a known location, the information processing device comprising:
- a memory;
- a receiver which receives a first wireless signal transmitted from the first wireless device, and a second wireless signal transmitted from at least one second wireless device installed in a known location different from the first wireless device;
- a hardware processor which, under control of a program stored in the memory, is configured to execute processes comprising:
- a measurement process which measures a strength of the first wireless signal at the time of reception and a strength of the second wireless signal at the time of reception;
- and
- an estimation process which estimates a range of a propagation loss index corresponding to a space between the first wireless device and the information processing device based on the strength of the first wireless signal at the time of reception, the strength of the second wireless signal at the time of reception, and a distance between the first wireless device and the second wireless device,
- wherein the propagation loss index is used to convert the strength of the first wireless signal at the time of reception into a distance between the first wireless device and the information processing device.
Dependencies are inferred from the claim text.