Systems, methods, and devices for utilizing radar with smart devices

Patent metadata

Field	Value
Publication number	US-11272335-B2
Application number	US-202017002655-A
Country	US
Kind code	B2
Filing date	Aug 25, 2020
Priority date	May 13, 2016
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

The various implementations described herein include methods, devices, and systems for determining locations of an electronic device. In one aspect, a method is performed at a computing system having one or more processors and memory. The method includes obtaining device identification information for the electronic device; broadcasting a request based on the device identification information that the electronic device be enabled to transmit or reflect location information using a radar technique; receiving a signal from the electronic device, the signal indicating a location of the electronic device using a radar technique; and determining the location of the electronic device based on the received signal.

First claim

What is claimed is:

1. A method for determining information associated with an electronic device, comprising:
at a computing system having one or more processors and memory:
transmitting a request identifying the electronic device that the electronic device transmit via a radar channel;
receiving a radar signal transmitted by the electronic device via the radar channel; and
determining, from the radar signal, at least one of a location or a movement of the electronic device.

2. The method of claim 1 , wherein the electronic device comprises a radar tag, wherein the radar tag comprises:
a first component configured to communicate with the computing system via a wireless communication protocol; and
a second component configured to convey the radar signal to the computing system.

3. The method of claim 1 , further comprising, at the computing system:
obtaining information identifying the electronic device.

4. The method of claim 1 , wherein the computing system comprises at least one of:
a camera;
a hub device;
a smart thermostat;
a smart security device;
an entryway interface device; or
a smart hazard detector.

5. The method of claim 1 , further comprising, at the computing system:
transmitting an additional request that a second electronic device not transmit via an additional radar channel.

6. The method of claim 1 , wherein the radar signal transmitted by the electronic device comprises one or more of:
a single tone on a radar band;
an amplification of a received radio signal;
a modulation of the received radio signal; or
a pulse on the radar band.

7. The method of claim 1 , further comprising, at the computing system:
transmitting an additional request identifying a second electronic device that the second electronic device transmit via an additional radar channel;
receiving an additional radar signal transmitted by the additional electronic device via the additional radar channel; and
determining, from the additional radar signal, at least one of a location or a movement of the second electronic device.

8. The method of claim 1 , further comprising, at the computing system:
after determining the at least one of the location or the movement of the electronic device, monitoring the at least one of the location or the movement of the electronic device.

9. The method of claim 8 , wherein monitoring the at least one of the location or the movement of the electronic device comprises:
receiving a second radar signal transmitted by the electronic device; and
determining, based on the second radar signal, whether the at least one of the location or the movement of the electronic device has changed.

10. The method of claim 1 , further comprising, at the computing system:
after determining the at least one of the location or the movement of the electronic device and in accordance with a determination that the electronic device is affixed to a wall, disregarding detected activity beyond the electronic device.

11. The method of claim 1 , further comprising, at the computing system:
obtaining information regarding an object to which the electronic device is affixed; and
monitoring movement of the object by utilizing the information regarding the object and the determined at least one of the location or the movement of the electronic device.

12. A method at an electronic device having one or more controllers and memory, the method comprising:
receiving, from a control device, a request to transmit via a radar channel, the request identifying the electronic device;
and
causing a radar signal to be transmitted via the radar channel, the radar signal received by the control device and indicating at least one of a location or a movement of the electronic device.

13. The method of claim 12 , further comprising:
receiving a signal from the control device; and
wherein causing the radar signal to be transmitted comprises modulating and reflecting the received signal such that a preset phantom velocity is present in the reflected signal.

14. The method of claim 12 , further comprising:
prior to receiving the request to transmit via the radar channel, operating in a low power mode; and
after receiving the request to transmit via the radar channel, operating in a radar mode, wherein operating in the radar mode consumes more power than operating in the low power mode.

15. An electronic device comprising:
a communication module for communicating with a control device;
a radar transceiver;
a memory; and
a processor interfaced with the communication module, the radar transceiver, and the memory, and configured to:
receive, from the control device via the communication module, a request to transmit a set of radar signals via the radar transceiver, the request identifying the electronic device, and
cause the radar transceiver to transmit the set of radar signals, the set of radar signals received by the control device and indicating at least one of a location or a movement of the electronic device.

16. The electronic device of claim 15 , wherein the processor is further configured to:
determine that the request to transmit the set of radar signals via the radar transceiver was intended for the electronic device.

17. The electronic device of claim 15 , wherein the request comprises a command to enable radar communication, and wherein the processor enables the radar transceiver.

18. The electronic device of claim 15 , further comprising:
an energy storage component configured to selectively provide power to the electronic device.

19. The electronic device of claim 18 , wherein the energy storage component is one of: a capacitor, a battery, or circuitry configured to harvest energy from signals received via at least one of the communication module or the radar transceiver.

20. The electronic device of claim 15 , further comprising at least one of:
a modulator configured to modulate radio waves received via the radar transceiver; or
a signal generator configured to generate radio waves at a particular frequency.

Assignees

• Google Llc

Inventors

• Marschalkowski Eric
• Silverstein Brian
• Sherry Eden
• Goldenson Andrew

Classifications

• H04W8/005

  Discovery of network devices, e.g. terminals · CPC title

• G01S13/42

  Simultaneous measurement of distance and other co-ordinates (indirect measurement G01S13/46) · CPC title

• G01S13/58

  Velocity or trajectory determination systems; Sense-of-movement determination systems · CPC title

• G01S13/56

  for presence detection {(presence detection using near field arrangements G01V3/00, e.g. G01V3/08, G01V3/12; burglar, theft or intruder alarms with electrical actuation G08B13/22 - G08B13/26)} · CPC title

• H04W4/029

  Location-based management or tracking services · CPC title