User detection apparatus, systems, and methods

Patent metadata

Field	Value
Publication number	US-10656691-B2
Application number	US-201715647021-A
Country	US
Kind code	B2
Filing date	Jul 11, 2017
Priority date	Jul 12, 2016
Publication date	May 19, 2020
Grant date	May 19, 2020

Abstract

A user detection apparatus includes a processor for an information handling device and a memory that stores code executable by the processor. The code is executable by the processor to detect a user in a user space that is proximate to the information handling device in response to an airflow being detected in the user space and, in response to detecting the user, resume or begin operations in the information handling device.

First claim

What is claimed is:

1. An apparatus, comprising:
a processor of an information handling device; and
a memory that stores code executable by the processor to:
detect movement of air molecules in a user space that is proximate to the information handling device,
determine whether one of a user and an airflow device caused the movement of air molecules within the user space based on one or more characteristics of the movement of air molecules that correspond with a human or an airflow device,
in response to determining that the user caused the movement of air molecules within the user space, one of:
resume operations in the information handling device, and
begin operations in the information handling device, and

in response to determining that the airflow device caused the movement of air molecules within the user space, maintain the information handling device in a standby state.

2. The apparatus of claim 1 , wherein the code is further executable by the processor to:
determine a presence of the user in the user space in response to detecting a first temperature in a first direction within the user space being lower than a second temperature detected in a second direction within the user space at a same time, the first temperature being lower as a result of the user causing the movement of air molecules by moving within the user space.

3. The apparatus of claim 1 , further comprising:
a plurality of temperature sensor elements coupled to the processor,
wherein the movement of air molecules is detected in response to a temperature difference detected by a first temperature sensor element and a second temperature sensor element.

4. The apparatus of claim 3 , further comprising:
a heat generation element that heats air in the user space,
wherein:
the heat generation element, the first temperature sensor element, and the second temperature sensor element are disposed on a sensor plane in the user space, and
the temperature difference includes a difference in temperature in a first direction and a second direction along the sensor plane.

5. The apparatus of claim 4 , wherein:
the sensor plane is a two-dimensional plane;
the first temperature sensor element is disposed along a horizontal axis in a first direction; and
the second temperature sensor element is disposed along one of a second direction along the horizontal axis and a third direction along a vertical axis.

6. The apparatus of claim 4 , further comprising:
a third temperature sensor element disposed on the sensor plane,
wherein:
the sensor plane is a three-dimensional plane,
the first temperature sensor element is disposed along a horizontal axis in a direction,
the second temperature sensor element is disposed along a different direction along the horizontal axis, and
the third temperature sensor element is disposed along a vertical axis.

7. The apparatus of claim 6 , wherein the code is further executable by the processor to:
determine that a different movement of air molecules detected in a predetermined direction within the user space is noise; and
in response to detecting the noise, determine that the airflow device caused the different movement of air molecules.

8. The apparatus of claim 6 , wherein the code is further executable by the processor to:
determine that a different movement of air molecules detected in a vertical direction within the user space is noise; and
in response to detecting the noise, determine that the airflow device caused the different movement of air molecules.

9. The apparatus of claim 5 , wherein the code is further executable by the processor to:
determine that a different movement of air molecules detected in a predetermined direction within the user space is noise; and
in response to detecting the noise, determine that the airflow device caused the different movement of air molecules.

10. The apparatus of claim 3 , wherein the code is further executable by the processor to:
detect a tilt of the plurality of sensors along a sensor plane; and
in response to detecting the tilt:
measure an amount of the tilt, and
correct a first flow rate vector based on the tilted sensor plane to a second flow rate vector,
wherein:
the movement of air molecules is based on the second flow rate vector, and
the second flow rate vector is based on the sensor plane being horizontal.

11. The apparatus of claim 1 , further comprising:
a plurality of temperature sensor elements coupled to the processor,
wherein the code is further executable by the processor to detect the movement of air molecules in response to a temperature difference detected by a first plurality of temperature sensor elements and a second plurality of temperature sensor elements.

12. The apparatus of claim 10 , wherein the code is further executable by the processor to:
calculate a flow rate vector from the temperature difference detected by the first plurality of temperature sensor elements and the second plurality of temperature sensor elements.

13. A method, comprising:
detecting, by use of a processor, movement of air molecules within a user space that is proximate to an information handling device;
determining whether one of a user and an airflow device caused the movement of air molecules within the user space based on one or more characteristics of the movement of air molecules that correspond with a human or an airflow device;
in response to determining that the user caused the movement of air molecules within the user space, one of:
resuming operations in the information handling device, and
beginning operations in the information handling device; and

in response to determining that the airflow device caused the movement of air molecules within the user space, maintaining the information handling device in a standby state.

14. The method of claim 13 , further comprising:
determining a presence of the user in response to detecting a first temperature in a first direction within the user space being lower than a second temperature detected in a second direction within the user space at a same time, the first temperature being lower as a result of the user causing the movement of air molecules by moving within the user space.

15. The method of claim 13 , further comprising:
detecting the movement of air molecules in response to a temperature difference detected by a plurality of temperature sensor elements.

16. The method of claim 15 , further comprising:
calculating a flow rate vector from the temperature difference detected by a first temperature sensor element and a second temperature sensor element; and
in response to the flow rate vector being from a predetermined direction, determining that the movement of air molecules is noise and the user is not present within the user space.

17. A program product comprising a computer-readable storage medium that stores code executable by a processor, the executable code comprising code to perform:
detecting, by use of a processor, movement of air molecules within a user space that is proximate to an information handling device;
determining whether one of a user and an airflow device caused the movement of air molecules within the user space based on one or more characteristics of the movement of air molecules that correspond with a human or an airflow device;
in response to determining that the user caused the movement of air molecules within the user space, one of:
resuming operations in the information handling device, and
beginning operations in the information handling device; and

in resp

Assignees

• Lenovo Singapore Pte Ltd

Inventors

• Kosugi Kazuhiro
• Sugai Yuhsaku
• Yoshiyama Noritoshi

Classifications

• G01P13/006 Primary

  by using thermal variables · CPC title

• G06F1/206 Primary

  comprising thermal management · CPC title

• G05B15/02

  electric · CPC title

• G08B13/181

  using active radiation detection systems · CPC title

• G01V9/005

  by thermal methods, e.g. after generation of heat by chemical reactions · CPC title