公开(公告)号：US5874904A

公开(公告)日：1999-02-23

申请号：US908588

申请日：1997-08-08

申请人： Takehide Hirabayashi ,  Hideo Shimizu ,  Taichi Tanigawa ,  Akihiko Okabe ,  Takayuki Usuda

发明人： Takehide Hirabayashi ,  Hideo Shimizu ,  Taichi Tanigawa ,  Akihiko Okabe ,  Takayuki Usuda

IPC分类号： G01C3/06 ,  B60R21/00 ,  B60W30/00 ,  G01S11/12 ,  G01S17/89 ,  G01S17/93 ,  G06T1/00 ,  G06T7/00 ,  G08G1/16

CPC分类号： G06T7/0075 ,  G01S11/12

摘要： An inter-vehicle distance to a preceding or following vehicle is reliably determined by using a simple processing, to alert the following vehicle to approach a dangerous range. The distance measurement apparatus includes a pair of light-receiving devices disposed on image-forming surfaces of lenses and having sensor lines and measurement windows on each sensor line at a certain interval, a distance detection device, a white line detection device and a vehicle detection device. The distance detection device detects distances at points, the coordinates of which are specified by the sensor line numbers and measurement window addresses. By using the detection results, the white line detection device detects a sensor line in which a white line on a road surface is present. By using the detection results obtained from the distance detection device relating to the sensor lines in which the white line is not present, the vehicle detection device checks a presence of a vehicle and outputs information on the inter-vehicle distance and the direction of the vehicle. The following vehicle may be alerted by flashing the brake lights.

摘要翻译： 通过使用简单的处理可靠地确定与前一车辆或后续车辆的车辆间距离，以警告后续车辆接近危险范围。 距离测量装置包括一对光接收装置，其设置在透镜的图像形成表面上，并且在一定间隔的每个传感器线上具有传感器线和测量窗口，距离检测装置，白线检测装置和车辆检测 设备。 距离检测装置检测点处的距离，其坐标由传感器行号和测量窗口地址指定。 通过使用检测结果，白线检测装置检测出存在路面上的白线的传感器线。 通过使用与不存在白线的传感器线相关的距离检测装置获得的检测结果，车辆检测装置检查车辆的存在并输出车辆间距离和车辆方向的信息 。 可以通过闪烁刹车灯来警告以下车辆。