Wearable device and control method, and smart control system

Patent metadata

Field	Value
Publication number	US-11054917-B2
Application number	US-201715563596-A
Country	US
Kind code	B2
Filing date	May 24, 2017
Priority date	May 31, 2016
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

A method for controlling a wearable device is disclosed. The method includes a step of determining a wearing state of the wearable device based on a positional change of the wearable device. The wearable device can be an annular wearable device worn by surrounding a body part of a wearer, and primarily includes an operation control portion, which is configured to determine a wearing state of the wearable device on the wearer. The wearing state of the wearable device can include a wearing direction of the wearable device, and whether the wearable device is worn on the left arm or the right arm of the wearer. The wearable device can be controlled by certain movements of the wearer, and thus involves no operation interface. A smart control system is also disclosed.

First claim

The invention claimed is:

1. A method for controlling an annular wearable device worn by surrounding an arm of a wearer, comprising:
providing the annular wearable device, the annular wearable device having a display, an operation control portion, and an attachment means configured to affix the annular wearable device around the arm of the wearer;
determining whether the annular wearable device is worn on a left arm or a right arm of the wearer based on a relative positional change in a three-dimensional space consisting of a first direction, a second direction, and a third direction, wherein:
the first direction resides along a first axis which is parallel to an extending direction of the annular wearable device and is parallel to a tangent line of a curved surface of the annular wearable device, the display being provided in a plane parallel to the tangent line;
the second direction resides along a second axis which is perpendicular to the first direction and is parallel to a longitudinal axis of the annular wearable device; and
the third direction resides along a third axis which is perpendicular to both of the first and the second direction extending radially outward from the curved surface; and

wherein said step of determining whether the annular wearable device is worn on a left arm or a right arm comprises:
detecting an acceleration value along the second direction when the wearer is swing the arm with the annular wearable device, and
determining a pointing direction of the second direction wherein
if the acceleration value is positive, a direction being defined as being opposing to a fingertip of the wearer is determined, or
if the acceleration value is negative, a direction being defined as pointing to the fingertip of the wearer is determined;

determining a first rotation direction of a first plane formed by the first direction and the third direction having the second direction as a rotation axis upon detecting that the first plane is rotating around the second direction, and a second rotation direction of a second plane formed by the first direction and the second direction having the third direction as a rotation axis upon detecting that the second plane is rotating around the third direction; and
determining whether the annular wearable device is worn on the left arm or the right arm of the wearer based on the pointing direction of the second direction, the first rotation direction of the first plane, and the second rotation direction of the second plane;

wherein the determining a first rotation direction of a first plane formed by the first direction and the third direction having the second direction as a rotation axis upon detecting that the first plane is rotating around the second direction, and a second rotation direction of a second plane formed by the first direction and the second direction having the third direction as a rotation axis upon detecting that the second plane is rotating around the third direction comprises:
detecting a first rotation angle of the first plane and a second rotation angle of the second plane; and
determining that:
the first rotation direction of the first plane is counter-clockwise relative to the display when viewed from the third direction responsive to that the first rotation angle is larger than a first preset positive value, or clockwise relative to the display when viewed from the third direction responsive to that the first rotation angle is smaller than a negative value of the first preset positive value; and
the second rotation direction of the second plane is counter-clockwise relative to the display when viewed from the third direction responsive to that the second rotation angle is larger than a second preset positive value, or clockwise relative to the display when viewed from the third direction responsive to that the second rotation angle is smaller than a negative value of the second preset positive value;

determining a desired display orientation aligned with the first direction, wherein the determination of the display orientation is made based on a comparison between a rotation about the first rotation direction and the second rotation direction;
reorienting the desired display orientation to be arranged in a positive or negative direction along the first direction in accordance with the determination of the desired display orientation.

2. The method of claim 1 , the determining a wearing state of the annular wearable device based on a positional change thereof comprises:
determining the wearing state of the annular wearable device based on a relative positional change in a three-dimensional space consisting of a first direction, a second direction, and a third direction, wherein:
the first direction is parallel to an extending direction of the annular wearable device and is parallel to a surface of the annular wearable device;
the second direction is perpendicular to the first direction and is parallel to the surface of the annular wearable device; and
the third direction is perpendicular to the surface of the annular wearable device.

3. The method of claim 2 , wherein the first direction is along a tangent line of a display panel of the annular wearable device.

4. The method of claim 1 , wherein at least one of the first rotation direction of the first plane and the second rotation direction of the second plane is detected by a three-axis gyro sensor.

5. The method of claim 1 , wherein the determining whether the annular wearable device is worn on the left arm or the right arm of the wearer based on the pointing direction of the second direction, the first rotation direction of the first plane, and the second rotation direction of the second plane comprises:
responsive to that the third direction is in a direction opposing to the wearer, determining:
that the annular wearable device is worn on the right arm of the wearer, responsive to that the second direction is in the direction pointing to the fingertip, the first rotation direction is clockwise relative to the display when viewed from the third direction, and the second rotation direction is counter-clockwise relative to the display when viewed from the third direction, or responsive to that the second direction is in the direction opposing to the fingertip, the first rotation direction is counter-clockwise relative to the display when viewed from the third direction, and the second rotation direction is counter-clockwise relative to the display when viewed from the third direction; or
that the annular wearable device is worn on the left arm of the wearer, responsive to that the second direction is in the direction pointing to the fingertip, the first rotation direction is counter-clockwise relative to the display when viewed from the third direction, and the second rotation direction is clockwise relative to the display when viewed from the third direction, or responsive to that the second direction is in the direction opposing to the fingertip, the first rotation direction is clockwise relative to the display when viewed from the third direction, and the second rotation direction is clockwise relative to the display when viewed from the third direction;

or responsive to that the third direction is in a direction pointing to the wearer, determining:
that the annular wearable device is worn on the right arm of the wearer, responsive to that the second direction is in the direction pointing to the fingertip, the first rotation direction is clockwise relative to the display when viewed from the third direction, and the second rotation direction is clockwise relative to the display when viewed from the third direction, or responsive to that the second direction is in the direction opposing to the fingertip, the first rotation direction is counter-clockwise relative to

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Multimedia Technology Co Ltd

Inventors

• Ye Hongna
• Liu Miao
• Zou Bin

Classifications

• G06V40/107

  Static hand or arm · CPC title

• G06F3/014 Primary

  Hand-worn input/output arrangements, e.g. data gloves · CPC title

• G06F3/0383

  Signal control means within the pointing device · CPC title

• G06F1/1694

  the I/O peripheral being a single or a set of motion sensors for pointer control or gesture input obtained by sensing movements of the portable computer · CPC title

• G06F3/0487

  using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser · CPC title