US 11,226,392 B1 · Estimating user risk based on wireless location determination

Abstract

Disclosed are embodiments for estimating risk associated with a user of a wireless device. In some embodiments, the risk relates to a risk of infection by a contagious disease. For example, in some embodiments, the contagious disease is Coronavirus 2019. In some embodiments, locations of multiple wireless devices are estimated based on signal strengths of signals associated with the devices. Neighboring devices are identified based on highest probability regions of the devices that are determined based on associated signals. A measure of proximity to other devices is then determined based on probabilities that each device is located in neighboring regions. The risk is then based on the measure of proximity. In some embodiments, a risk of a first user associated with a first wireless device is based, in part, on a risk of a second user within a proximity of the first user.

Claims20

Dependent claims

A method performed by hardware processing circuitry, comprising:

determining, based on wireless signals associated with a first wireless device, a first location probability surface, the first location probability surface defining a first plurality of probabilities that the first wireless device is located in a first plurality of corresponding regions;
determining, based on wireless signals associated with a second wireless device, a second location probability surface, the second probability surface defining a second plurality of probabilities that the second wireless device is located in a second plurality of corresponding regions;
multiplying a first probability associated with a first region of the first plurality of regions with a second probability associated with a second region of the second plurality of regions;
determining, based on the multiplying, a third probability that the first wireless device and the second wireless device are within a threshold distance of each other;
determining a measure of proximity between the first wireless device and the second wireless device based on the third probability;
and
determining a first risk of infection of a first user associated with the first wireless device based on the measure of proximity.

4 more elements

A system, comprising:

hardware processing circuitry;
and
one or more hardware memories storing instructions that when executed configure the hardware processing circuitry to perform operations comprising:
determining, based on wireless signals associated with a first wireless device, a first location probability surface, the first location probability surface defining a first plurality of probabilities that the first wireless device is located in a first plurality of corresponding regions;
determining, based on wireless signals associated with a second wireless device, a second location probability surface, the second probability surface defining a second plurality of probabilities that the second wireless device is located in a second plurality of corresponding regions;
multiplying a first probability associated with a first region of the first plurality of regions with a second probability associated with a second region of the second plurality of regions;
determining, based on the multiplying, a third probability that the first wireless device and the second wireless device are within a threshold distance of each other;
determining, a measure of proximity between the first wireless device and the second wireless device based on the third probability;
and
determining a first risk of infection of a first user associated with the first wireless device based on the measure of proximity.

7 more elements

Dependencies are inferred from the claim text.

Estimating user risk based on wireless location determination

Life of this patent

Estimating user risk based on wireless location determination

Life of this patent

Abstract

Claims20