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US 2024/0175971 A1Published application
Method of generating direction vector of particle, and apparatus and method for estimating indoor location based thereon
AssigneeElectronics and Telecommunications Research Institute
InventorsMyung In JI, Ju Il JEON, Young Su CHO, Kyeong Soo HAN
Life of this patent
Estimating the term…
Abstract
Provided is a method of generating direction vectors of particles. The method includes calculating, by a processor, a center of gravity of the particles on the basis of characteristic values of one or more particles in a cluster including the particles, and generating, by the processor, direction vectors of the particles on the basis of the center of gravity.
Claims15
An apparatus for estimating an indoor location, comprising:
- an interface unit configured to receive a positioning infrastructure measurement value and a radio map database (DB) which is referred to by one or more particles in a cluster including the particles;
- and
- a processor configured to calculate characteristic values of the particles on the basis of the positioning infrastructure measurement values and the radio map DB which is referred to by the particles, calculate a center of gravity of the particles using the characteristic values, calculate direction vectors of the particles on the basis of the center of gravity, and then estimate an indoor location of a terminal by performing resampling on the particle according to the direction vector of each particle.
A method of estimating an indoor location, comprising:
- receiving, by an interface unit, positioning infrastructure measurement values and a radio map database (DB) which is referred to by a plurality of particles in a cluster including the particles;
- calculating, by a processor, characteristic values of the particles on the basis of the positioning infrastructure measurement values and the radio map DB which is referred to by the particles, calculating a center of gravity of the particles using the characteristic values, and calculating direction vectors of the particles on the basis of the center of gravity;
- and
- estimating, by the processor, an indoor location of a terminal by performing resampling on the particle according to the direction vector of each particle.
1 more element
A method of generating direction vectors of particles, comprising:
- calculating, by a processor, a center of gravity of the particles on the basis of characteristic values of one or more particles in a cluster including the particles;
- and
- generating, by the processor, direction vectors of the particles on the basis of the center of gravity.
Dependencies are inferred from the claim text.