To provide a preceding vehicle detection system with solar light protection.SOLUTION: A preceding vehicle detection system disclosed in the present description is composed of: a light source device which is fitted to a preceding vehicle; and a detector which is fitted to a subsequent vehicle. The light source device includes at least two infrared light sources which are fitted to the preceding vehicle in such a manner as to be viewed from the subsequent vehicle. The detector includes: one camera which photographs an area in front of the subsequent vehicle; and a computer which calculates a direction and a distance of the preceding vehicle from the at least two infrared light sources on the image, which has been photographed with the camera, to the camera. The detector includes at least one of the following (1) and (2): (1) a light attenuation filter with lower transmittance of a visible light region than the transmittance of an infrared region is fitted to the camera; and (2) the upper limit of an angle of view of the camera is directed more downward than a horizontal direction.SELECTED DRAWING: Figure 2

    【課題】本明細書は、太陽光対策を施した先行車検知システムを提供する。【解決手段】本明細書が開示する先行車検知システムは、先行車に取り付けられている光源装置と、後続車に取り付けられている検知装置で構成される。光源装置は、後続車から見えるように先行車に取り付けられている少なくとも2個の赤外光源を備える。検知装置は、後続車の前方を撮影する唯一のカメラと、カメラが撮影した画像上の少なくとも2個の赤外光源からカメラに対する先行車の方向と距離を算出するコンピュータを備える。検知装置は、次の(1)と(2)の少なくとも一方の特徴を備える。(1)可視光領域の透過率が赤外領域の透過率よりも低い減光フィルタがカメラに取り付けられている。(2)カメラの画角の上限が水平方向よりも下を向いている。【選択図】図2


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    Title :

    PRECEDING VEHICLE DETECTION SYSTEM


    Additional title:

    先行車検知システム


    Contributors:

    Publication date :

    2023-06-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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