Patent ID: 7642950

Claim:
A radar device, comprising: transmitting means for transmitting an electromagnetic wave; receiving means for receiving the electromagnetic wave reflected by a target object of the transmission electromagnetic wave; target object measuring means for measuring at least a distance between the radar device and the target object on the basis of the transmission electromagnetic wave and the reception electromagnetic wave; transmission output control means for performing one of stopping and reducing a transmission output of said transmitting means under a predetermined condition; and transmission output control function abnormality determining means for determining that said transmission output control means is abnormal upon receiving the reception of an electromagnetic wave having an intensity exceeding a predetermined threshold value even at the time of one of stop and reduction of the transmission output, wherein said transmission output control function abnormality determining means determines that said transmission output control means is abnormal in a case where a distance between the radar device and the target object exceeds a predetermined threshold value in one of the transmission output stop state and the transmission output reduction state.