Collision avoidance apparatus, collision avoidance system, and driving support method

摘要

In a collision avoidance apparatus (1), a first information acquisition unit (7) generates first information that includes the position, speed and advancement direction of a first mobile body, and obtains first information from a first information transmitting unit (1) having a transmitting function. A second information acquisition unit (9) obtains second information that includes the position, speed and advancement direction of a second mobile body. A first mobile body prediction unit (11) predicts positions (P₁) of the first mobile body at future time points T, based on the first information, and a second mobile body prediction unit (13) predicts the positions (P₂) of the second mobile body at the time points T, based on the second information. A judgement unit (15) judges whether or not the positions (P₁) of the first mobile body and the positions (P₂) of the second mobile body satisfy predetermined conditions, and if the conditions are satisfied, a signal outputting unit (17) outputs a signal which is specific to that case.