Branch-lane entry judging system
First Claim
1. A branch-lane entry judging system comprising:
- traffic-line detecting means configured to detect traffic lines on right and left sides of a vehicle;
length and width detecting means configured to detect lengths and widths, in a traveling direction of the vehicle on a real space, of the traffic lines detected by the traffic-line detecting means;
lane-type judging means configured to judge types of the traffic lines and judge a type of a lane in which the vehicle is running, on the basis of a result of detection performed by the length and width detecting means;
branch-lane detecting means configured to detect the existence of a branch lane when detecting, on the basis of the result of detection performed by the length and width detecting means, that one of the traffic lines changes from a solid line to a broken line having a predetermined length and a predetermined width, the branch lane existing near the changed traffic line;
branch-lane entry judging means configured to judge that the vehicle will enter the branch lane when the vehicle moves toward the branch lane, or when a directional indicator is operated toward the branch lane;
control means configured to output a deceleration signal for decelerating the vehicle when;
the length and width detecting means detects that both the traffic lines on the right and left sides of the vehicle have changed to solid lines,while a predetermined time passes or while the vehicle runs by a predetermined distance,after the branch-lane entry judging means judges that the vehicle will enter the branch lane; and
history holding means configured to hold a sampling period history, said history including data representative of a traffic line status in a previous sampling period,wherein the system is configured to judge, with reference to the history held by the history holding means, that the one of the traffic lines changes from a solid line to a broken line.
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Accused Products
Abstract
A branch-lane entry judging system includes a traffic-line detecting means for detecting traffic lines on right and left sides of a vehicle, a length and width detecting means for detecting lengths and widths of the traffic lines in a real space, a lane-type judging means for judging types of the traffic lines and a type of a lane in which the vehicle is running, a branch-lane detecting means for detecting a branch lane when one of the traffic lines changes from a solid line to a broken line having a predetermined length and a predetermined width, the branch lane existing near the changed traffic line, and a branch-lane entry judging means for judging that the vehicle will enter the branch lane when the vehicle moves toward the branch lane or a directional indicator is operated toward the branch lane while the branch lane is detected.
12 Citations
23 Claims
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1. A branch-lane entry judging system comprising:
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traffic-line detecting means configured to detect traffic lines on right and left sides of a vehicle; length and width detecting means configured to detect lengths and widths, in a traveling direction of the vehicle on a real space, of the traffic lines detected by the traffic-line detecting means; lane-type judging means configured to judge types of the traffic lines and judge a type of a lane in which the vehicle is running, on the basis of a result of detection performed by the length and width detecting means; branch-lane detecting means configured to detect the existence of a branch lane when detecting, on the basis of the result of detection performed by the length and width detecting means, that one of the traffic lines changes from a solid line to a broken line having a predetermined length and a predetermined width, the branch lane existing near the changed traffic line; branch-lane entry judging means configured to judge that the vehicle will enter the branch lane when the vehicle moves toward the branch lane, or when a directional indicator is operated toward the branch lane; control means configured to output a deceleration signal for decelerating the vehicle when; the length and width detecting means detects that both the traffic lines on the right and left sides of the vehicle have changed to solid lines, while a predetermined time passes or while the vehicle runs by a predetermined distance, after the branch-lane entry judging means judges that the vehicle will enter the branch lane; and history holding means configured to hold a sampling period history, said history including data representative of a traffic line status in a previous sampling period, wherein the system is configured to judge, with reference to the history held by the history holding means, that the one of the traffic lines changes from a solid line to a broken line. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 16, 18, 23)
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10. A branch-lane entry judging system comprising:
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traffic-line detecting means configured to detect traffic lines on right and left sides of a vehicle; length and width detecting means configured to detect lengths and widths, in a traveling direction of the vehicle on a real space, of the traffic lines detected by the traffic-line detecting means; lane-type judging means configured to judge types of the traffic lines and judge a type of a lane in which the vehicle is running, on the basis of a result of detection performed by the length and width detecting means; branch-lane detecting means configured to detect the existence of a branch lane when detecting, on the basis of the result of detection performed by the length and width detecting means, that one of the traffic lines changes from a solid line to a broken line having a predetermined length and a predetermined width, the branch lane existing near the changed traffic line; branch-lane entry judging means configured to judge that the vehicle will enter the branch lane when the vehicle moves toward the branch lane, or when a directional indicator is operated toward the branch lane; control means configured to output an acceleration-prohibiting signal for prohibiting acceleration of the vehicle when the branch-lane entry judging means judges that the vehicle will enter the branch lane; and history holding means configured to hold a sampling period history, said history including data representative of a traffic line status in a previous sampling period, wherein the system is configured to judge, with reference to the history held by the history holding means, that the one of the traffic lines changes from a solid line to a broken line, the control means is configured to stop output of the acceleration-prohibiting signal when; the length and width detecting means detects that the one of the traffic lines is a broken line having the predetermined length and the predetermined width, while a predetermined time passes or the vehicle runs by a predetermined distance, after the branch-lane entry judging means judges that the vehicle will enter the branch lane, and the control means is configured to output a signal for a constant-speed running control of the vehicle when the output of a deceleration signal or the acceleration-prohibiting signal is stopped. - View Dependent Claims (19)
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15. A branch-lane entry judging system comprising:
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traffic-line detecting means configured to detect traffic lines on right and left sides of a vehicle; length and width detecting means configured to detect lengths and widths, in a traveling direction of the vehicle on a real space, of the traffic lines detected by the traffic-line detecting means; lane-type judging means configured to judge types of the traffic lines and judge a type of a lane in which the vehicle is running, on the basis of a result of detection performed by the length and width detecting means; branch-lane detecting means configured to detect the existence of a branch lane when detecting, on the basis of the result of detection performed by the length and width detecting means, that one of the traffic lines changes from a solid line to a broken line having a predetermined length and a predetermined width, the branch lane existing near the changed traffic line; branch-lane entry judging means configured to judge that the vehicle will enter the branch lane when the vehicle moves toward the branch lane, or when a directional indicator is operated toward the branch lane; control means configured to output an acceleration-prohibiting signal for prohibiting acceleration of the vehicle when the branch-lane entry judging means judges that the vehicle will enter the branch lane; and history holding means configured to hold a sampling period history, said history including data representative of a traffic line status in a previous sampling period, wherein the system is configured to judge, with reference to the history held by the history holding means, that the one of the traffic lines changes from a solid line to a broken line, and the control means is configured to output a signal for a constant-speed running control of the vehicle when the directional indicator is operated in a direction opposite the branch lane. - View Dependent Claims (20, 22)
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17. A branch-lane entry judging system comprising:
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traffic-line detecting means configured to detect traffic lines on right and left sides of a vehicle; length and width detecting means configured to detect lengths and widths, in a traveling direction of the vehicle, on a real space, of the traffic lines detected by the traffic-line detecting means; lane-type judging means configured to judge types of the traffic lines and judge a type of a lane in which the vehicle is running, on the basis of a result of detection performed by the length and width detecting means; history holding means configured to hold a sampling period history, said history including data representative of a traffic line status in a previous sampling period; branch-lane detecting means configured to detect the existence of a branch lane when detecting that one of the traffic lines changes from a solid line to a broken line having a predetermined length and a predetermined width by reference to the history held by the history holding means, the branch lane existing near the changed traffic line; and branch-lane entry judging means configured to judge that the vehicle will enter the branch lane when the vehicle moves toward the branch lane, or when a directional indicator is operated toward the branch lane. - View Dependent Claims (21)
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Specification