DRIVER ASSISTANCE DEVICE AND DRIVER ASSISTANCE SYSTEM INCLUDING DRIVER ASSISTANCE DEVICE

Based on image information captured by a camera sensor, a deviation degree determination unit determines the degree of deviation when a situation occurs in which a vehicle V deviates from its lane. Vibration pattern information according to the degree of deviation is transmitted to the wearable device, and a vibration device contained in the wearable device is vibrated according to the vibration pattern information. As a result, the vibration device can be vibrated in a vibration pattern according to the degree of deviation from the lane without making the driver feel annoyed and making passengers feel uncomfortable.