Methods and systems for monitoring posture with alerts and analytics generated by a smart seat cover

• US 9,795,322 B1
• Filed: 04/17/2017
• Issued: 10/24/2017
• Est. Priority Date: 10/14/2016
• Status: Active Grant

• Current Assignee: Calcey Technologies (Pvt) Ltd.
• Original Assignee: Right Posture Pte., Ltd.
• Inventors: Karunaratne, Mangalanath Wickramanayake, Mendis, Rashmi Suganda, Kudagoda, Sasanka Ushani, Madapatha, Ganidu Ashen, Uswatta, Uswatta Liyanage Mudith Jayanuwan, Mahathma Arachchi, Asela Indika
• Primary Examiner(s): HINDENBURG, MAX F
• Application Number:
  US15/489,699
• Time in Patent Office: 190 Days
• CPC Class Codes: A47C 7/62 Accessories for chairs
• CPC Class Codes: A47C 7/72 Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
• CPC Class Codes: A47C 7/723 with display screens
• CPC Class Codes: A47C 7/727 with speakers
• CPC Class Codes: A61B 2560/0223 of calibration, e.g. protocols for calibrating sensors
• CPC Class Codes: A61B 5/1116 Determining posture transitions
• CPC Class Codes: A61B 5/6891 Furniture
• CPC Class Codes: A61B 5/7271 Specific aspects of physiological measurement analysis A61B5/316, A61B5/349 and A61B5/374 take precedence
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence

Abstract

Disclosed are methods and systems for monitoring and correcting sitting posture of a user and for discouraging sedentary behavior. The system comprises a processor, a portable seat cover with embedded pressure sensors and an angle sensor, a notification device, and a non-transitory storage medium for storing program code. The program code, when executed by the processor, causes the processor to initiate an idleness timer to count how long the user has been sitting, monitor the user'"'"'s sitting posture by receiving real-time sensor measurements; identify a sitting posture by applying a posture identification rule, generate a posture correction notification through the notification device if the identified sitting posture is not ergonomically correct, determine whether a sedentary threshold has been reached and generate a stand notification if the sedentary threshold has been reached. Embodiments of the present invention help improve sitting posture and reduce sedentary behavior to minimize associated adverse health effects.

Claims

1. A system for monitoring and correcting sitting posture of a user, and for discouraging sedentary behavior of the user, comprising:

a processor operatively connected to a clock;

a portable seat cover comprising a backrest portion and a seat portion, adapted for attachment to a chair;

a plurality of sensors embedded in the portable seat cover and each operatively connected to the processor, including at least three pressure sensors embedded in the backrest portion for monitoring shoulder and lower back positions of the user, at least one angle sensor embedded in the backrest portion for monitoring an inclination of the backrest portion relative to the seat portion, and at least two pressure sensors embedded in the seat portion for monitoring leg positions of the user;

a notification device attached to the portable seat cover and operatively connected to the processor;

a non-transitory physical storage medium for storing program code and operatively connected to the processor, the program code when executed by the processor causes the processor to;

initiate an idleness timer to count how long the user has been sitting, wherein the idleness timer is activated when the user sits on the seat portion of the portable seat cover, and deactivated when the user stands up from sitting on the seat portion of the portable seat cover;

monitor the user'"'"'s sitting posture by receiving, at discrete intervals in real-time, a first plurality of sensor measurement values from the plurality of sensors;

identify a sitting posture of the user by applying a posture identification rule to the first plurality of sensor measurement values, wherein the posture identification rule is based on the user'"'"'s weight;

determine whether the sitting posture is ergonomically correct by identifying a category that the sitting posture belongs to;

in response to determining that the sitting posture is not ergonomically correct, generate a posture correction notification through the notification device to alert the user to correct the sitting posture;

determine whether a sedentary threshold has been reached by comparing the idleness timer to the sedentary threshold;

in response to determining that the sedentary threshold has been reached, generate a stand notification through the notification device to alert the user to stand up;

initiate a stand timer to count how long the user has been standing, wherein the stand timer is activated when the user stands up from sitting on the seat portion of the portable seat cover, and deactivated when the user sits on the seat portion of the portable seat cover;

determine whether the user has stood up in response to the stand notification;

in response to determining that the user has not stood up in response to the stand notification, reduce the idleness timer by a predetermined amount of time;

in response to determining that the user has stood up in response to the stand notification, pause the idleness timer until the user is seated again, increase the stand timer by the amount of time the user stood, and determine whether a standing time threshold has been reached by comparing the stand timer to the standing time threshold;

in response to determining that the standing time threshold has been reached, reset the idleness timer and the stand timer; and

in response to determining that the standing time threshold has not been reached, reduce the idleness timer by a predetermined amount of time and reset the stand timer.

2. The system of claim 1, wherein the plurality of sensors comprises at least four pressure sensors embedded in the seat portion for monitoring leg positions of the user.

3. The system of claim 1, wherein the stand notification comprises an action selected from the group consisting of making the seat uncomfortable to sit in, and generating a reminder alert for display on a user device.

4. The system of claim 1, wherein the posture correction notification comprises actions selected from the group consisting of poking the user at one or more locations on the portable seat cover, vibrating a portion of the portable seat cover, generating a reminder alert for display on a user device, generating sitting posture information for display on the user device, and sending a notification to the user device.

5. The system of claim 1, wherein the program code when executed by the processor, further causes the processor to:

receive height and weight information of the user; and

calibrate the system by;

instructing the user to sit in a calibration posture, and

receiving a plurality of calibration sensor measurement values from the plurality of sensors, wherein the posture identification rule is based on the plurality of calibration sensor measurement values.

6. The system of claim 1, wherein the program code when executed by the processor, further causes the processor to:

generate, for display on a user device, sitting posture information based on the first plurality of sensor measurement values, wherein the sitting posture information indicates whether one or more sensors are measuring values within an ergonomic range;

receive a second plurality of sensor measurement values from the plurality of sensors;

determine whether a posture change has occurred by comparing the second plurality of sensor measurement values to the first plurality of sensor measurement values; and

in response to determining that a posture change has occurred, generate, for display on a user device, updated sitting posture information based on the second plurality of sensor measurement values.

7. The system of claim 1, wherein the program code when executed by the processor, further causes the processor to:

timestamp the first plurality of sensor measurement values and the identified sitting posture; and

send the timestamped first plurality of sensor measurement values and/or the timestamped sitting posture to a user device, wherein the user device later uploads the time stamped first plurality of sensor measurements values and/or the timestamped sitting posture to a cloud server, when an upload connection becomes available.

8. The system of claim 1, further comprising a user device having access to the processor, wherein the user device performs a social gamification function selected from the group consisting of causing the processor to generate a posture correction notification in response to receiving a poke request from a friend, updating a posture challenge score according to the sitting posture, uploading timestamped historical posture data received from the processor to a community database, and causing the processor to update the sedentary threshold based on a group goal or a peer-to-peer goal received from the community database.

9. The system of claim 1, wherein the program code when executed by the processor, further causes the processor to identify a stress level of the user based on sitting posture movement patterns.

10. A method for monitoring and correcting sitting posture of a user, and for discouraging sedentary behavior of the user, comprising:

initiating an idleness timer to count how long the user has been sitting,

wherein the idleness timer is activated when the user sits on a seat portion of a portable seat cover, and deactivated when the user stands up from sitting on the seat portion of the portable seat cover,

wherein the portable seat cover comprises a backrest portion and a seat portion, adapted for attachment to a chair,

wherein the portable seat cover comprises a plurality of embedded sensors each operatively connected to a processor, including at least three pressure sensors embedded in the backrest portion for monitoring shoulder and lower back positions of the user, at least one angle sensor embedded in the backrest portion for monitoring an inclination of the backrest portion relative to the seat portion, and at least two pressure sensors embedded in the seat portion for monitoring leg positions of the user;

monitoring the user'"'"'s sitting posture by receiving, at discrete intervals in real-time, a first plurality of sensor measurement values from the plurality of sensors;

identifying a sitting posture of the user by applying a posture identification rule to the first plurality of sensor measurement values, wherein the posture identification rule is based on the user'"'"'s weight;

determining whether the sitting posture is ergonomically correct by identifying a category that the sitting posture belongs to;

in response to determining that the sitting posture is not ergonomically correct, generating a posture correction notification through the notification device to alert the user to correct the sitting posture;

determining whether a sedentary threshold has been reached by comparing the idleness timer to the sedentary threshold;

in response to determining that the sedentary threshold has been reached, generating a stand notification through the notification device to alert the user to stand up;

initiating a stand timer to count how long the user has been standing, wherein the stand timer is activated when the user stands up from sitting on the seat portion of the portable seat cover, and deactivated when the user sits on the seat portion of the portable seat cover;

determining whether the user has stood up in response to the stand notification;

in response to determining that the user has not stood up in response to the stand notification, reducing the idleness timer by a predetermined amount of time;

in response to determining that the user has stood up in response to the stand notification, pausing the idleness timer until the user is seated again, increasing the stand timer by the amount of time the user stood, and determining whether a standing time threshold has been reached by comparing the stand timer to the standing time threshold;

in response to determining that the standing time threshold has been reached, resetting the idleness timer and the stand timer; and

in response to determining that the standing time threshold has not been reached, reducing the idleness timer by a predetermined amount of time and reset the stand timer.

11. The method of claim 10, wherein the plurality of sensors comprises at least four pressure sensors embedded in the seat portion for monitoring leg positions of the user.

12. The method of claim 10, wherein the posture correction notification comprises an action selected from the group consisting of poking the user at one or more locations on the portable seat cover, vibrating a portion of the portable seat cover, generating a reminder alert for display on a user device, generating sitting posture information for display on the user device, and sending a notification to the user device.

13. The method of claim 10, further comprising:

generating, for display on a user device, sitting posture information based on the first plurality of sensor measurement values, wherein the sitting posture information indicates whether one or more sensors are measuring values within an ergonomic range;

receiving a second plurality of sensor measurement values from the plurality of sensors;

determining whether a posture change has occurred by comparing the second plurality of sensor measurement values to the first plurality of sensor measurement values; and

in response to determining that a posture change has occurred, generating, for display on a user device, updated sitting posture information based on the second plurality of sensor measurement values.

14. The method of claim 10, further comprising a gamification functions selected from the group consisting of:

causing the processor to generate a posture correction notification in response to receiving a poke request from a friend,

updating a posture challenge score according to the sitting posture,

uploading timestamped historical posture data to a community database, and

updating the sedentary threshold based on a group goal or a peer-to-peer goal received from the community database.

15. A non-transitory computer-readable storage medium for monitoring and correcting sitting posture of a user, and for discouraging sedentary behavior of the user, the storage medium comprising program code stored thereon, that when executed by a processor, causes the processor to:

initiate an idleness timer to count how long the user has been sitting,

wherein the idleness timer is activated when the user sits on the seat portion of a portable seat cover, and deactivated when the user stands up from sitting on the seat portion of the portable seat cover,

wherein the portable seat cover comprises a backrest portion and a seat portion, adapted for attachment to a chair,

wherein the portable seat cover comprises a plurality of embedded sensors each having access to a processor, including at least three pressure sensors embedded in the backrest portion for monitoring shoulder and lower back positions of the user, at least one angle sensor embedded in the backrest portion for monitoring an inclination of the backrest portion relative to the seat portion, and at least two pressure sensors embedded in the seat portion for monitoring leg positions of the user;

monitor the user'"'"'s sitting posture by receiving, at discrete intervals in real-time, a first plurality of sensor measurement values from the plurality of sensors;

identify a sitting posture of the user by applying a posture identification rule to the first plurality of sensor measurement values, wherein the posture identification rule is based on the user'"'"'s weight;

determine whether the sitting posture is ergonomically correct by identifying a category that the sitting posture belongs to;

in response to determining that the sitting posture is not ergonomically correct, generate a posture correction notification through the notification device to alert the user to correct the sitting posture;

determine whether a sedentary threshold has been reached by comparing the idleness timer to the sedentary threshold;

in response to determining that the sedentary threshold has been reached, generate a stand notification through the notification device to alert the user to stand up;

initiate a stand timer to count how long the user has been standing, wherein the stand timer is activated when the user stands up from sitting on the seat portion of the portable seat cover, and deactivated when the user sits on the seat portion of the portable seat cover;

determine whether the user has stood up in response to the stand notification;

in response to determining that the user has not stood up in response to the stand notification, reduce the idleness timer by a predetermined amount of time;

in response to determining that the user has stood up in response to the stand notification, pause the idleness timer until the user is seated again, increase the stand timer by the amount of time the user stood, and determine whether a standing time threshold has been reached by comparing the stand timer to the standing time threshold;

in response to determining that the standing time threshold has been reached, reset the idleness timer and the stand timer;

in response to determining that the standing time threshold has not been reached, reduce the idleness timer by a predetermined amount of time and reset the stand timer;

initiate a stand timer to count how long the user has been standing, wherein the stand timer is activated when the user stands up from sitting on the seat, and deactivated when the user sits on the seat;

determine whether the user has stood up in response to the stand notification;

in response to determining that the user has not stood up in response to the stand notification, reduce the idleness timer by a predetermined amount of time;

in response to determining that the user has stood up in response to the stand notification, pause the idleness timer until the user is seated again, increase the stand timer by the amount of time the user stood, and determine whether a standing time threshold has been reached by comparing the stand timer to the standing time threshold;

in response to determining that the standing time threshold has been reached, reset the idleness timer and the stand timer; and

in response to determining that the standing time threshold has not been reached, reduce the idleness timer by a predetermined amount of time and reset the stand timer.

16. The non-transitory computer-readable storage medium of claim 15, wherein the posture correction notification comprises an action selected from the group consisting of poking the user at one or more locations on the portable seat cover, vibrating a portion of the portable seat cover, generating a reminder alert for display on a user device, generating sitting posture information for display on the user device, and sending a notification to the user device.

17. The non-transitory computer-readable storage medium of claim 15, the storage medium further comprising program code that when executed by a processor, causes the processor to:

generate, for display on a user device, sitting posture information based on the first plurality of sensor measurement values, wherein the sitting posture information indicates whether one or more sensors are measuring values within an ergonomic range;

receive a second plurality of sensor measurement values from the plurality of sensors;

determine whether a posture change has occurred by comparing the second plurality of sensor measurement values to the first plurality of sensor measurement values; and

in response to determining that a posture change has occurred, generate, for display on a user device, updated sitting posture information based on the second plurality of sensor measurement values.