Sign up for an Award
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
Let's imagine. After finishing busy day, You arrive in front of your house and try to get in but the digital door-lock doesn't work. You can see the sign there is not enough battery and even the sign isn't clear due to low battery.
There is a tiny mark of lightning on doorknob. If you look closely, the mark is placed on switch where you grab and turn with a thumb and index finger.
Therefore I suggest a door-lock system ‘ER(Electronic Resuscitation)' which can produce electricity urgently when the digital door-lock is no longer working because of no battery.
Daegu, South Korea