Bang Won Lee, Yongin-si, South Korea.
Assigned to Atlab Inc., Yongin-si, South Korea.

Filed: 6/13/24
Issued: 7/1/25

A sensor device for a diaper, the sensor device comprising: a first protective layer; at least one pad positioned on an upper part of at least a part of the first protective layer; a flexible body layer positioned on upper parts of the at least one pad; a shield plate layer positioned on an upper part of at least a part of the flexible body layer; a second protective layer positioned on upper parts of at least a part of the shield plate layer and at least a part of the flexible body layer; and a printed circuit board layer positioned on an upper part of at least a part of the second protective layer or at least a part of the flexible body layer, wherein the sensor device is attached to an outer side of the diaper, wherein the at least one pad is provided in a plural, and wherein when measuring a change in capacitance value by using at least one of the at least one pad, a measuring power voltage is applied to a corresponding pad and a ground voltage is applied to remaining pads excluding the corresponding pad.