Abstract: A sensor controller, which controls a first optical sensor and a second optical sensor respectively having beam irradiation ranges, shifted from each other, for scanning a substantially front direction and a substantially side direction of a vehicle. The sensor controller: determines when an abnormality occurs in either the first optical sensor or the second optical sensor; identifies an abnormal sensor in which abnormality has occurred and a normal sensor that maintains normality; and controls a beam pattern in a beam irradiation range of the normal sensor to have a degeneration pattern with a high density in a region overlapping a beam irradiation range of the abnormal sensor.

Abstract: An error estimation device includes an error prediction unit and a determination unit. The error prediction unit is configured to predict a bias error occurring in an inertial sensor mounted in a vehicle. The determination unit is configured to determine whether the bias error needs to be repredicted by the error prediction unit based on a reflection distance image acquired by an optical sensor in a rolling shutter mode and an outside light image acquired by an external camera in a global shutter mode.

Abstract: A synchronization device includes a synchronization prediction unit, a change amount calculation unit, an image estimation unit, a difference extraction unit, and a determination unit. The synchronization prediction unit is configured to predict a synchronization error time between a radar sensor and an external camera. The change amount calculation unit is configured to calculate a change amount of the reflected wave image in a shutter frame of the external camera. The image estimation unit is configured to estimate the reflected wave image for a synchronization timing that is shifted from a start timing of the shutter frame by the synchronization error time. The difference extraction unit is configured to extract a difference by comparing the reflected wave image for the synchronization timing with the outside light image. The determination unit configured is to determine, based on the difference, whether to return to a step of predicting the synchronization error time.

Abstract: An error estimation device includes an error prediction unit and a determination unit. The error prediction unit is configured to predict a bias error occurring in an inertial sensor mounted in a vehicle. The determination unit is configured to determine whether the bias error needs to be repredicted by the error prediction unit based on a reflection distance image acquired by an optical sensor in a rolling shutter mode and an outside light image acquired by an external camera in a global shutter mode.

Abstract: A sensor controller, which controls a first optical sensor and a second optical sensor respectively having beam irradiation ranges, shifted from each other, for scanning a substantially front direction and a substantially side direction of a vehicle. The sensor controller: determines when an abnormality occurs in either the first optical sensor or the second optical sensor; identifies an abnormal sensor in which abnormality has occurred and a normal sensor that maintains normality; and controls a beam pattern in a beam irradiation range of the normal sensor to have a degeneration pattern with a high density in a region overlapping a beam irradiation range of the abnormal sensor.