Vehicle-Specific Speed Limit Notification From Road Sign Recognition
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Solution Overview
Problem
In areas where speed limits displayed on road signs do not account for vehicle attributes, drivers are often notified of incorrect speed limits, leading to potential violations and safety issues.
Innovation Solution
An information providing apparatus equipped with an electronic control unit that acquires image-recognized traffic regulations through image recognition, combines this with vehicle information and positional data, and notifies the driver of the appropriate speed limit based on their vehicle's attributes and current location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the speed limit from the road sign is displayed on the display, then the driver is notified of the speed limit, but the driver is notified of the wrong speed limit when the road sign does not target some vehicles
Solution Approach 1:
The notification system is segmented into multiple components: image recognition unit for detecting road signs, vehicle attribute acquisition unit for obtaining vehicle information, speed limit determination unit for calculating appropriate speed limits based on both road signs and vehicle attributes, and notification unit for displaying the determined speed limit. This segmentation allows each component to handle specific tasks, ensuring accurate speed limit notification tailored to the vehicle's attributes.
Solution Approach 2:
The system changes the parameter of speed limit notification from a fixed value displayed on road signs to a dynamic value determined by combining road sign information with vehicle attribute information. The speed limit determination unit adjusts the notified speed limit based on vehicle-specific parameters such as vehicle type, weight, or other attributes, ensuring the notification reflects the actual applicable speed limit for the specific vehicle.
2Device complexity
If the road sign displays only one representative traffic regulation, then the road sign installation is simple, but the driver is notified of the traffic regulation not to be applied to the vehicle
Solution Approach 1:
The notification system acts as an intermediary between the simple road sign and the driver. The image recognition unit detects the road sign, the vehicle attribute acquisition unit obtains vehicle information, and the speed limit determination unit processes both inputs to determine the appropriate speed limit for the specific vehicle. This intermediary processing ensures that the driver receives accurate, vehicle-specific traffic regulation notifications without requiring complex multi-message road signs.
Solution Approach 2:
The system replaces the mechanical approach of displaying multiple different road signs for different vehicle types with an electronic information processing system. Instead of installing physically different road signs for different vehicles, the system uses image recognition to capture the road sign, processes the information electronically along with vehicle attributes, and generates the appropriate notification. This substitution maintains simple road sign installation while achieving accurate, vehicle-specific notifications.
Data Source
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AI summary
An information providing apparatus (10) notifies an operator of an own vehicle (100) of an applied traffic regulation to be applied to the own vehicle (100). The information providing apparatus (100) acquires an image-recognized traffic regulation by an image recognition of recognizing a captured image of a view ahead of the own vehicle (100). The image-recognized traffic regulation is displayed in a road sign captured in the captured image and is to be applied to vehicles travelling in a traffic lane where the own vehicle (100) is travelling. The information providing apparatus (10) acquires positional information on a current position of the own vehicle (100), acquires the applied traffic regulation based on the positional information, the image-recognized traffic regulation, and vehicle information on an attribute of the own vehicle (100), and notifies the operator of the own vehicle (100) of the acquired applied traffic regulation.