Security method for vehicle safe driving support system

• US 20040145495A1
• Filed: 02/27/2003
• Published: 07/29/2004
• Est. Priority Date: 01/27/2003
• Status: Active Grant

• Current Assignee: National Institute For Land and Infrastructure Management Ministry of Land Infrastructure and Transportation
• Original Assignee: National Institute For Land and Infrastructure Management Ministry of Land Infrastructure and Transportation
• Inventors: Komada, Makio, Ishizaka, Makoto, Suzuki, Masateru, Maeda, Masato, Kurata, Ryoichi
• Granted Patent: US 6,922,136 B2
• Time in Patent Office: Days
• US Class Current: 340/905
• CPC Class Codes: G08G 1/164 Centralised systems, e.g. external to vehicles

Abstract

The security method for a vehicle safe driving system according to this invention is providing drivers to notice information for safe driving, when a sensor does not detect any danger when there is a danger on the road, when there are some limits in the system operations, or when a portion of the system does not work.

Claims

1. A security method of safe driving assist system for road vehicles by providing information from a roadside system to vehicles and drivers, wherein, for instance, when a sensor does not detect the dangerous situation when a dangerous situation exists on a road, when the work of the system is limited, or when a part of the system does not work, the notice information indicating that the system can not work accurately is provided to vehicles and drivers for safe driving.

2. The system security method according to claim 1, wherein the three types of information enabling drivers to understand the road situations:

namely at least information of existence of a dangerous situation, notice information for drivers to make safe driving because of possibility of a dangerous situation, and information indicating that the system can not provide information are presented on a rode side message board and/or an information display unit in each vehicle.

3. The system security method according to claim 1, wherein said the roadside system provides the information indicating specific dangers to the site where the roadside system is installed via a roadside message board and/or an information display unit in each vehicle.