IN-VEHICLE SENSOR SYSTEM, AND DATA GENERATION METHOD FOR IN-VEHICLE SENSOR SYSTEM

Provided is an in-vehicle sensor system capable of maintaining an equivalent level of precision before and after replacement of a surrounding sensor. An in-vehicle sensor system (1) includes: a surrounding sensor including: a casing (11) removably mounted to a vehicle body; a detector (12) supported by the casing (11) and configured to output detection data; and a first storage storing first data corresponding to a deviation of actual position and posture of the detector (12) with respect to the casing (11) from predetermined normal design position and posture; a second storage (21) provided separately from the surrounding sensor and fixed to the vehicle body, and configured to store second data corresponding to a deviation of actual position and posture of the casing (11) with respect to the vehicle body from predetermined normal design position and posture; and a corrector (13) configured to correct the detection data output from the detector (12) based on the first data and the second data.