Vision protection method and system thereof

1. A vision care method for eyesight protection of a viewer of a computer including a display, a detector oriented towards a viewer in front of the display, the detector comprising a camera communicating with a facial recognition module, and a control module coupled to the detector and the display, the method comprising:

(a) detecting, by the control module, a viewer in front of the display using the detector;

(b) initiating, by the control module, a working mode wherein the display presents working information to the viewer, the control module triggers a timer counting down a predetermined working time period for the working mode, and the control module monitors:

i) a sitting posture of the viewer; and

ii) an eye blinking rate of the viewer via images from the camera analyzed by the facial recognition module;

(c) during the working mode, when the eye blinking rate of the viewer falls below a blinking threshold or an improper sitting height of the viewer is detected by the control module, presenting a warning on the display;

(d) after the predetermined working time has lapsed, switching the working mode of the computer to a resting mode for protecting the viewer from excessive usage of the computer by interrupting display of working information on the display so as to ensure the viewer to rest eyes thereof for a predetermined resting time;

(e) switching the computer from the resting mode back to the working mode to resume the display of working information on the display after the predetermined resting time has elapsed; and

(f) repeating the above steps (b) to (e) to form a loop continuously until the viewer terminates operating the computer so as to ensure the viewer opportunities to have intermittent rests of eyes thereof.

2. The method, as recited in claim 1 , wherein the eye blinking rate is detected by:

capturing a plurality of eye images of the viewer in the working mode from the camera;

determining, by the facial recognition module, whether the sclera and/or corneal light reflex of the viewer is shown in the eye images; and

when the sclera and/or corneal light reflex of the viewer is not shown in the eye images, counting viewer blinks.

3. The method, as recited in claim 2 , wherein the detector monitors only one eye of the viewer.

4. The method of claim 1 , further comprising:

detecting a working distance of the viewer from the display to ensure that a proper distance is kept between the viewer and the display; and

when the working distance falls outside a predetermined threshold, presenting a warning on the display.

5. The method of claim 1 , wherein, during the working mode, the method further comprises:

detecting a working distance of the viewer from the display to ensure that a proper distance is kept between the viewer and the display; and

when the working distance falls outside a predetermined threshold, presenting a warning on the display.

6. A method for eyesight protection of a viewer of a computer including a display, a detector comprising a camera oriented towards a viewer in front of the display and communicating with a facial recognition module, and a control module coupled to the detector and the display, the method comprising:

(a) detecting, by the control module, a viewer in front of the display;

(b) initiating, by the control module, a working mode wherein:

i) the display presents working information to the viewer;

ii) the control module triggers a timer counting down a predetermined working time period for the working mode; and

iii) the control module monitors a plurality of parameters of the viewer using the camera and the facial recognition module, the parameters comprising:

1) monitoring a sitting height of the viewer;

2) monitoring a working distance of the viewer from the display; and

3) monitoring a blinking rate of an eye of the viewer; and

iv) the control module monitors ambient light intensity using the detector;

(c) during the working mode, when the control module determines that any of the parameters or the ambient light intensity fall outside a predetermined threshold, presenting a warning on the display;

(d) after the predetermined working time has lapsed, switching the working mode of the electronic device to a resting mode for protecting the viewer from excessive usage of the computer; and

(e) switching the computer from the resting mode back to the working mode to resume the display of working information on the display after the predetermined resting time has elapsed.

7. The method of claim 6 , wherein, when the electronic device is switched from the working mode to the resting mode, the display of working information on the display is interrupted by the control module.

8. The method of claim 6 , wherein switching the working mode of the electronic device to the resting mode comprises interrupting display of working information on the display.

9. The method of claim 6 , wherein switching the electronic device to the resting mode comprises one of:

i) idling the electronic device for the predetermined resting time period; and

ii) freezing the display on a final image from the working mode for the predetermined resting time period.

10. The method of claim 6 , further comprising repeating steps (b) to (e) to form a loop continuously until the viewer terminates operating the electronic device so as to provide the viewer opportunities to have intermittent rest of the viewer's eyes.

11. The method of claim 10 , wherein steps (b) to (e) are repeated until the control module determines that:

i) the control module determines that the viewer halts operating use of the electronic device; or

ii) the viewer has shut the electronic device down.

12. The method of claim 6 , wherein, during the working mode, the control module monitors ambient light intensity of the electronic device, such that when the ambient light intensity is detected below a preset ambient light threshold, a warning is presented on the display.

13. The method of claim 6 , wherein, during the working mode, the control module analyzes images from the camera to detect the sitting posture of the viewer, and wherein, when the control module detects an improper sitting posture of the viewer, a warning is presented on the display.

14. A system for eyesight protection of a viewer of a computer, comprising:

a display;

a detector comprising a camera mounted relative to the display for imaging a viewer in front of the display;

a facial recognition module for analyzing images from the camera;

a control module coupled to the display, the detector, and the facial recognition module to:

(a) detect a viewer in front of the display;

(b) initiate a working mode wherein:

i) the display presents working information to the viewer;

ii) the control module triggers a timer counting down a predetermined working time period for the working mode; and

iii) the control module monitors a plurality of parameters of of the viewer using the camera and the facial recognition module, the parameters comprising:

1) a sitting height of the viewer;

2) a working distance of the viewer from the display; and

3) a blinking rate of the eye of the viewer; and

iv) the control module monitors ambient light intensity using the detector;

(c) during the working mode, if the control module determines that any of the parameters or the ambient light intensity falls outside a predetermined threshold, a warning is presented on the display;

(d) after the predetermined working time has lapsed, switch the working mode of the computer to a resting mode for protecting the viewer from excessive usage of the computer; and

(e) switch the computer from the resting mode back to the working mode to resume the display of working information on the display after the predetermined resting time has elapsed.

15. The system of claim 14 , wherein the camera is built-in the electronic device along with the display.

16. The system of claim 14 , wherein, the control module is further configured to interrupt display of working information on the display when the electronic device is switched from the working mode to the resting mode.

17. The system of claim 14 , wherein the control module is configured to repeat steps (b) to (e) until the control module determines that the viewer halts operating use of the electronic device, or the viewer has shut the electronic device down.

18. The system of claim 14 , wherein, during the working mode, when the ambient light intensity is detected below a preset ambient light threshold, a warning is presented on the display.