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People always lock the car subconsciously after getting off,but when they disturbed by something , the action might be forgotten and lead to anxiety.
The design of Key on Key solve the problem well.After user pressing the button of Key on Key, the inner core will rotate either clockwise or anticlockwise around the central axis and then the channel which is between the inner core and chipped key ring will open or close, and the status display lamp changes. Therefore, Key On Key 's state can clearly show it if the car door is locking or not.
Hunan University Of Science and
Hunan University Of Science
Hunan XiangTan, China
Yin JinLi HaodongXu HaihaoLi Ying