US Patent No. 10,973,103

PRESENCE AND DIRECTIONAL MOTION DETECTION


Patent No. 10,973,103
Issue Date April 06, 2021
Title Presence And Directional Motion Detection
Inventorship Shigefumi Honjo, Mountain View, CA (US)
Jung Hong, Mountain View, CA (US)
Andrew Goldenson, Belmont, CA (US)
Lawrence Chang, Palo Alto, CA (US)
Marci Meingast, San Francisco, CA (US)
Adam Cutbill, Mountain View, CA (US)
Amber Volmering, Newark, CA (US)
Jeffrey Yu, San Francisco, CA (US)
Anurag Gupta, San Jose, CA (US)
Assignee GOOGLE LLC, Mountain View, CA (US)

Claim of US Patent No. 10,973,103

1. A computer-implemented system for presence and directional motion detection comprising:sensors in a structure of a smart home environment, each sensor configured to detect motion in the structure and generate a signal; and
and a hub computing device configured to receive signals from a sensor of the sensors, the sensor positioned in the structure, generate an indication of directional motion based on the signals from the sensor, wherein the indication of directional motion is generated without using signals from additional sensors, in response to the indication of directional motion, generate a control signal for a device in the structure and send the control signal to the device in the structure to be implemented by the device, receive signals from sensors in the structure, identify at least one substructure of the structure based on at least one pattern of motion determined based on the signals from the sensors, and update a map of the structure based on the at least one identified substructure and the location of one or of the sensors whose signals were used to determine the at least one pattern of motion, receive signals from sensors in the structure, receive context data comprising at least the time of day, identify at least one pattern of motion based on the context data and directional motion determined from the signals from the sensors, and update a model of motion patterns with the at least one identified pattern of motion, receive additional signals from the sensors in the structure, receive additional context data comprising at least the time of day, and determine if the additional context data and directional motion determined from the additional signals corresponds to at least one pattern of motion in the model of motion patterns or diverges from the patterns of motion in the model of motion patterns, receive sensor counts from sensors in the structures, the sensors counts comprising counts that are incremented when a sensor detects a person passing in front of the sensor in a first direction and decremented when the sensor detects a person passing in front of the sensor in a second direction, collate sensor counts from sensors that monitor entryways to the same rooms to generate room counts, wherein the room count for a room is the summation of sensor counts from sensors that monitor entryways to that room, generate a second control signal for the device in the structure based on at least one of the room counts, send the second control signal to the device in the structure to be implemented by the device.