Patent ID: 8493197

Claim:
A load sensing device, which includes a load detecting device adapted to a seat and outputting a load signal in response to a strain generated at the load detecting device and which detects a load applied to the seat on the basis of the load signal outputted from the load detecting device, the load sensing device comprising; a determining means determining whether the seat is in an occupied state or in a vacant state on the basis of a magnitude relationship between the detected load and a threshold value; a collision detecting means detecting a shock generated when a vehicle collides; and a memorizing means storing therein a diagnosis information indicating a necessity of a zero-point adjustment of the load detecting device to be executed in a case where the seat is determined to be in the occupied state by the determining means when the shock is detected by the collision detecting means, and indicating that the zero-point adjustment does not need to be executed in a case where the seat is determined to be in the vacant state by the determining means when the shock is detected by the collision detecting means.