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Wrong-way travel warning device and wrong-way travel warning method

一种警告装置、可能性的技术，应用在测量装置、运输和包装、导航等方向，能够解决驾驶者发出警告等问题

Inactive Publication Date: 2010-06-30
TOYOTA JIDOSHA KK +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the methods described in Patent Documents 1 and 4, the reverse direction is not detected before the vehicle travels in the reverse direction, so there is a problem that it is difficult to issue a warning to the driver before the reverse direction or before the start of the reverse direction.
In addition, when a U-turn is detected as described in Patent Document 2 or 3, the vehicle has already reversed to the reverse direction when the U-turn is detected, so it is difficult to warn the driver before the reverse direction or before starting the reverse direction.

Method used

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  • Wrong-way travel warning device and wrong-way travel warning method
  • Wrong-way travel warning device and wrong-way travel warning method
  • Wrong-way travel warning device and wrong-way travel warning method

Examples

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Embodiment 1

[0039] The reverse traffic warning device 100 of this embodiment detects the turning angle based on the vehicle length direction when the vehicle speed becomes below a predetermined value on the arterial road of an expressway, and detects that the turning angle has reached a predetermined value (for example, about 90 degrees). situation, so as to detect the possibility that the vehicle has the wrong direction. The arterial roads of expressways are constructed so that U-turns are not possible, so it is better to minimize the possibility of U-turns. Therefore, when the turning angle exceeds a predetermined value while the vehicle speed is equal to or less than a predetermined value on an arterial road of an expressway, it is possible to reliably detect that the vehicle may be traveling in the wrong direction on the expressway.

[0040] On the expressway, there are ramps for entering, etc., and / or sideways, separation lanes or merging lanes used to separate / merge with ordinary ro...

Embodiment 2

[0066] In this embodiment, a wrong-way warning device 100 that detects the possibility of wrong-way traffic by processing an image captured by a rear camera (back camera) 26 will be described. On an expressway, lane markings for dividing traffic lanes are marked on the road surface, and the lane markings have a linear shape parallel to the traffic lanes. Therefore, it is considered that the vehicle length direction of the own vehicle and the lane dividing line must pass through a state at right angles before the host vehicle makes a U-turn and starts to go backwards. By monitoring the angle of the lane dividing line captured by the rear camera 26, The fact that there is a possibility of retrograde can be detected.

[0067] Figure 5 A block diagram of the reverse traffic warning device 100 of this embodiment is shown. exist Figure 5 in, right with figure 1 The same symbols are assigned to the same structural parts and their explanations are omitted. The reverse traffic w...

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Abstract

Provided is a wrong-way travel warning device (100) comprising: speed detection means (21) for detecting the speed of a driver's own vehicle; means (24) for detecting the position of the driver's own vehicle; angle detection means (22) for detecting the angle with respect to lane markings in the longitudinal direction of the driver's own vehicle when the speed of the driver's own vehicle is below a prescribed value; and warning means (32, 25) for warning the occupants of the vehicle when the angle has substantially reached 90 DEG if the driver's own vehicle is travelling on the main carriageway of the motorway.

Description

technical field [0001] The present invention relates to a reverse-travel warning device and a reverse-travel warning method that may issue a warning when the direction of travel is determined to be reverse-traveled on a road. Background technique [0002] Although the driver wants to drive on the lane in the determined direction of travel, when there are multiple lanes on one side, etc., the driver intends to make a U-turn and drive on the opposite lane, but sometimes drives ahead on the wrong lane. Regarding this point, a navigation device has been proposed that detects the wrong direction and issues a warning to the vehicle occupant (for example, refer to Patent Document 1). Patent Document 1 discloses a navigation device that stores information on forbidden roads in a database and issues a warning to the driver when the vehicle is traveling in a direction opposite to the forward direction of the forbidden road. . [0003] In addition, a U-turn detection device for dete...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/00G08G1/0969G08G1/16
CPCG01C21/3658G01C21/3697G08G1/167B62D15/029G08G1/075G01C21/26G08G1/16G08G1/056G08G1/166
Inventor 古仲大辅中村正树中尾功一石川知章三浦直人吉田真树勘场基辉鹤见洁
Owner TOYOTA JIDOSHA KK
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