BODY MOVEMENT DETECTION DEVICE AND DISPLAY CONTROL METHOD OF BODY MOVEMENT DETECTION DEVICE

• US 20120274554A1
• Filed: 07/05/2012
• Published: 11/01/2012
• Est. Priority Date: 03/01/2010
• Status: Abandoned Application

• Current Assignee: Omron Healthcare Company Limited (Omron Corporation)
• Original Assignee: Omron Healthcare Company Limited (Omron Corporation)
• Inventors: KINOSHITA, Shigeo, TAKEISHI, Naoki
• Application Number:
  US13/542,338
• Publication Number:
  US 20120274554A1
• Time in Patent Office: Days
• US Class Current: 345/156
• CPC Class Codes: A61B 2562/0219 Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches
• CPC Class Codes: A61B 5/1118 Determining activity level
• CPC Class Codes: A61B 5/1123 Discriminating type of movement, e.g. walking or running A61B5/1116, A61B5/112 take precedence
• CPC Class Codes: A61B 5/681 Wristwatch-type devices
• CPC Class Codes: A61B 5/7445 Display arrangements, e.g. multiple display units

Abstract

A body movement detection device is provided with a main body unit, a display unit provided to the main body unit, a control unit, and a detection unit that detects acceleration of the main body unit, and the control unit includes a discriminating unit for discriminating a movement state of a user wearing the main body unit based on the acceleration detected by the detection unit, and a display control unit for switching a display state of the display unit based on discrimination of the movement state by the discriminating unit. Display can thereby be automatically switched to display appropriate to the state of physical activity.

Claims

1. A body movement detection device comprising:

a main body unit;

a display unit provided to the main body unit;

a control unit; and

a detection unit that detects acceleration of the main body unit,

wherein the control unit includes;

discriminating unit that discriminates a movement state of a user wearing the main body unit, based on the acceleration detected by the detection unit;

display control unit that switches a display state of the display unit based on discrimination of the movement state by the discriminating unit; and

posture detecting unit that detects a change by the user to a prescribed posture for viewing the display unit, based on the acceleration detected by the detection unit, and

the discriminating mean unit discriminates that the movement state has changed, when a change to the prescribed posture is detected by the posture detecting unit, and

the display control unit switches the display state of the display unit in a case where it is discriminated by the discriminating unit that the movement state has changed.

2. The body movement detection device according to claim 1,

wherein the posture detecting unit further detects a change from the prescribed posture to another posture, based on the acceleration detected by the detection unit unit, and

the display control unit further switches the display state to a non-display state when a change to the other posture is detected by the posture detecting unit.

3. The body movement detection device according to claim 1,

wherein the detection unit further detects acceleration in a direction in which an influence of gravitational acceleration is greater when the user is in the prescribed posture than when the user is in another posture, and

the posture detecting unit detects a change to the prescribed posture, when the acceleration detected by the detection unit satisfies a condition enabling it to be judged that the influence of gravitational acceleration is greater.

4. The body movement detection device according to claim 1,

wherein the detection unit detects acceleration in two or three axis directions, and

the posture detecting unit detects a change to the prescribed posture, when a condition enabling it to be judged that a representative value of combined acceleration obtained by combining the acceleration in the two or three axis directions detected by the detection unit is less than a prescribed value is satisfied.

5. The body movement detection device according to claim 1,

wherein the display control unit switches the display state of the display unit to a display state appropriate to the movement state discriminated by the discriminating unit.

6. The body movement detection device according to claim 5,

wherein the movement state is a state of physical activity,

the discriminating unit discriminates a running state, a walking state or a stopped state as the state of physical activity, and

the display control unit switches to display suitable for when the user is running in a case where the state of physical activity discriminated by the discriminating unit is the running state, switches to display suitable for when the user is walking in a case where the state of physical activity discriminated by the discriminating unit is the walking state, and switches to display suitable for when the user has stopped in a case where the state of physical activity discriminated by the discriminating unit is the stopped state.

7. The body movement detection device according to claim 1,

wherein the discriminating unit discriminates the movement state, according to a waveform of the acceleration.

8. A display control method for switching a display state of a display unit of a body movement detection device that includes a main body unit, the display unit which is provided to the main body unit, a control unit and a detection unit that detects acceleration of the main body unit, comprising the steps of:

the control unit discriminating a movement state of a user wearing the main body unit, based on the acceleration detected by the detection unit;

the control unit switching the display state of the display unit, based on discrimination of the movement state; and

detecting a change by the user to a prescribed posture for viewing the display unit, based on the acceleration detected by the detection unit,

wherein the step of discriminating the movement state includes the step of discriminating that the movement state has changed, when a change to the prescribed posture is detected, and

the step of switching the display state includes the step of switching the display state of the display unit in a case where it is discriminated that the movement state changed.