Mobile device, location estimation method, and computer-readable recording medium
First Claim
1. A mobile device comprising:
- a processor configured to execute a process including;
transmitting a radio wave intensity state to a first base station device having strongest radio wave intensity among a plurality of base station devices present at a location communicable with the mobile device, the radio wave intensity state including, for each of the plurality of base station devices, identifier of the base station device, radio wave intensity which is measured between the mobile device and the base station device and location information indicating a location of the mobile device which measures the radio wave intensity;
acquiring, from the first base station device, a first radio wave intensity state which the first base station device receives and stores from the mobile device and other mobile devices;
by referring to the acquired first radio wave intensity state, first estimating a center of a circle as the location of the first base station device, the circle passing through each location of mobile devices having an identifier of the first base station device;
by referring to the acquired first radio wave intensity state, second estimating, for each of neighboring base station devices in the vicinity of the first base station device, a center of a circle as the location of the neighboring base station device, the circle passing through each of the location of mobile devices having the identifier of a neighboring base station device;
generating a circle in which a distance between the mobile device and the first base station device estimated by using the radio wave intensity is set as a radius and in which the estimated location of the first base station device is set as a center;
generating, for each of the neighboring base station devices, a circle in which a distance between the mobile device and the neighboring base station device estimated by using the radio wave intensity is set as a radius and in which the estimated location of the neighboring base station device is set as a center; and
third estimating a location of the mobile device by using an algorithm selected based on the number of the generated circles and a location relation between the generated circles.
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Accused Products
Abstract
A mobile device estimates includes a processor configured to execute a process. The process includes first estimating a location of each of a plurality of base station devices present at a location communicable with the mobile device. The process includes generating a circle a radius of which is a distance between the mobile device and the base station device estimated by using radio wave intensity from the base station device, around the location of the base station device estimated at the first estimating, for each of the base station devices. The process includes second estimating a location of the mobile device by using algorithm selected based on the number of the circles of the base station devices generated at the generating and a location relation between the circles.
4 Citations
9 Claims
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1. A mobile device comprising:
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a processor configured to execute a process including; transmitting a radio wave intensity state to a first base station device having strongest radio wave intensity among a plurality of base station devices present at a location communicable with the mobile device, the radio wave intensity state including, for each of the plurality of base station devices, identifier of the base station device, radio wave intensity which is measured between the mobile device and the base station device and location information indicating a location of the mobile device which measures the radio wave intensity; acquiring, from the first base station device, a first radio wave intensity state which the first base station device receives and stores from the mobile device and other mobile devices; by referring to the acquired first radio wave intensity state, first estimating a center of a circle as the location of the first base station device, the circle passing through each location of mobile devices having an identifier of the first base station device; by referring to the acquired first radio wave intensity state, second estimating, for each of neighboring base station devices in the vicinity of the first base station device, a center of a circle as the location of the neighboring base station device, the circle passing through each of the location of mobile devices having the identifier of a neighboring base station device; generating a circle in which a distance between the mobile device and the first base station device estimated by using the radio wave intensity is set as a radius and in which the estimated location of the first base station device is set as a center; generating, for each of the neighboring base station devices, a circle in which a distance between the mobile device and the neighboring base station device estimated by using the radio wave intensity is set as a radius and in which the estimated location of the neighboring base station device is set as a center; and third estimating a location of the mobile device by using an algorithm selected based on the number of the generated circles and a location relation between the generated circles. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A location estimation method comprising:
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transmitting a radio wave intensity state to a first base station device having strongest radio wave intensity among a plurality of base station devices present at a location communicable with the mobile device, the radio wave intensity state including, for each of the plurality of base station devices, identifier of the base station device, radio wave intensity which is measured between the mobile device and the base station device and location information indicating a location of the mobile device which measures the radio wave intensity, using a processor; acquiring, from the first base station device, a first radio wave intensity state which the first base station device receives and stores from the mobile device and other mobile devices, using the processor; by referring to the acquired first radio wave intensity state, estimating a center of a circle as the location of the first base station device, the circle passing through each location of mobile devices having an identifier of the first base station device, using the processor; by referring to the acquired first radio wave intensity state, estimating, for each of neighboring base station devices in the vicinity of the first base station device, a center of a circle as the location of the neighboring base station device, the circle passing through each of the location of mobile devices having the identifier of a neighboring base station device, using the processor; generating a circle in which a distance between the mobile device and the first base station device estimated by using the radio wave intensity is set as a radius and in which the estimated location of the first base station device is set as a center, using the processor; generating, for each of the neighboring base station devices, a circle in which a distance between the mobile device and the neighboring base station device estimated by using the radio wave intensity is set as a radius and in which the estimated location of the neighboring base station device is set as a center, using the processor; and estimating a location of the mobile device by using an algorithm selected based on the number of the generated circles and a location relation between the generated circles, using the processor.
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9. A non-transitory computer-readable recording medium having stored therein a location estimation program that causes a mobile device to execute a process comprising:
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transmitting a radio wave intensity state to a first base station device having strongest radio wave intensity among a plurality of base station devices present at a location communicable with the mobile device, the radio wave intensity state including, for each of the plurality of base station devices, identifier of the base station device, radio wave intensity which is measured between the mobile device and the base station device and location information indicating a location of the mobile device which measures the radio wave intensity; acquiring, from the first base station device, a first radio wave intensity state which the first base station device receives and stores from the mobile device and other mobile devices; by referring to the acquired first radio wave intensity state, estimating a center of a circle as the location of the first base station device, the circle passing through each location of mobile devices having an identifier of the first base station device; by referring to the acquired first radio wave intensity state, estimating, for each of neighboring base station devices in the vicinity of the first base station device, a center of a circle as the location of the neighboring base station device, the circle passing through each of the location of mobile devices having the identifier of a neighboring base station device; generating a circle in which a distance between the mobile device and the first base station device estimated by using the radio wave intensity is set as a radius and in which the estimated location of the first base station device is set as a center; generating, for each of the neighboring base station devices, a circle in which a distance between the mobile device and the neighboring base station device estimated by using the radio wave intensity is set as a radius and in which the estimated location of the neighboring base station device is set as a center; and estimating a location of the mobile device by using an algorithm selected based on the number of the generated circles and a location relation between the generated circles, using the processor.
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Specification