| 摘要 |
A device for automatically adjusting the hardness of an air bed based on front or side lying comprises: a mattress body having at least one air cushion, wherein the air cushion has an air inlet/outlet; gravity sensors traverse positioned in the mattress body; a cylindrical member, which one end is connected with the air inlet/outlet; an inflation/deflation device connected with the other end of the cylindrical member, wherein the other end is not connected with the air cushion; and a control device electrically connected with the inflation/deflation device and the air cushion previously stores the predetermining values of front lying and side lying, the gravity sensors are triggered to send signals to the control device while the user lies on, the control device determines the result of front lying or side lying based on the triggering amount and drives the inflation/deflation device to inflate/deflate the air cushion.
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