Driving assist system and vehicle-mounted apparatus

一种车载装置、驾驶支援的技术,应用在车载装置,驾驶支援系统领域,能够解决不能驾驶者提供恰当的信息、不能驾驶者提示有效的信息、帧丢失等问题

Inactive Publication Date: 2008-09-03
FUJITSU LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the deterioration of communication conditions, there is a problem that it may not be possible to provide appropriate information to the driver
As a specific example, there are cases where the image captured by the camera and the position of other vehicles detected by the sensor are displayed differently from reality due to communication delays
In addition, because the radio waves are blocked or reflected by other vehicles around the own vehicle, information such as encoding errors may be lost, resulting in abnormal states such as image display confusion, frame loss, and temporary stop
In addition, depending on the weather, surrounding brightness, etc., the clarity of the image and the detection accuracy may decrease.
The information prompted in these states not only fails to prompt the driver with effective information, but also causes the driver to make mistakes in judgment, which may reduce safety.

Method used

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  • Driving assist system and vehicle-mounted apparatus
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  • Driving assist system and vehicle-mounted apparatus

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0023] FIG. 1 is an explanatory diagram schematically showing an example of a driving assistance system according to a first embodiment. 1 is a vehicle, and the vehicle 1 is equipped with an in-vehicle device 10 such as a device for a car navigation system, and the in-vehicle device 10 communicates with a roadside device 20 installed on the side of the road on which the vehicle 1 travels.

[0024] The roadside device 20 is installed near the road on which the vehicle 1 travels, especially near an intersection. The roadside device 20 detects various conditions such as the position of a vehicle approaching an intersection, weather, and brightness. The roadside device 20 also acquires the status based on the image captured by the camera. In addition, the roadside device 20 transmits traffic condition information indicating these conditions. The vehicle-mounted device 10 supports the driving of the driver of the vehicle 1 by performing various output processes based on the recei...

no. 2 approach

[0054] The second embodiment is an embodiment in which, in the first embodiment, reliability information indicating reliability is added to the traffic condition information transmitted from the roadside device and transmitted. The various units included in the driving assistance system of the second embodiment and the configurations of the various units are the same as those of the first embodiment, and therefore, the same reference numerals as those of the first embodiment are assigned and descriptions thereof are omitted.

[0055] The roadside device 20 of the second embodiment includes a situation detection unit 26 that detects surrounding conditions as described in the first embodiment. The situation detecting unit is a rain sensor for detecting a rainfall situation, a brightness sensor for detecting surrounding brightness, and the like. The roadside apparatus transmits reliability information indicating the reliability based on the conditions detected by the condition de...

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PUM

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Abstract

There is provided a driving assist system and a vehicle device, which outputs the driving assist information based on the traffic circumstance information irrespective of the received condition and the like, wherein the traffic circumstance information is the information transmitted from the road side apparatus to the vehicle-mounted apparatus. The vehicle-mounted apparatus (10) maintaining the required allowance for executing the following units including an image display unit for displaying the image, a vehicle position display unit for displaying the vehicle position and a vehicle presence display unit for displaying the presence of the vehicle. The vehicle-mounted apparatus (10) also selects a display unit for satisfying the above condition related to the validity of the vehicle presence display unit derivative from the traffic circumstance. The vehicle-mounted apparatus (10) also outputs the driving assist information.

Description

technical field [0001] The present invention relates to a driving support system and a vehicle-mounted device used in the driving support system. The driving support system includes a vehicle-mounted device mounted on a vehicle and a roadside device installed on a road side. The roadside device acquires traffic conditions and The traffic condition information indicating the acquired traffic condition is transmitted to the in-vehicle device, and the in-vehicle device outputs driving assistance information for assisting driving based on the received traffic condition information. Background technique [0002] A road-vehicle communication in which a road-side device is installed on the side of the road on which the vehicle travels and communicates with an on-vehicle device mounted on the vehicle, and a driving support system using the above-mentioned road-vehicle communication have been proposed (for example, refer to Patent Document 1). In the Advanced Cruise Highway System (A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/00G08G1/0962G08G1/123
CPCG08G1/164G08G1/09675G08G1/096783
Inventor 池田拓郎福冈俊之北川英志奥山镜子宫田亮介
Owner FUJITSU LTD
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