Onboard Camera Drive Assist for Priority-Based Collision Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing drive assist devices rely on communication devices installed on roads, limiting their effectiveness on roads without such infrastructure, and thus fail to provide appropriate assistance in various road conditions.
Innovation Solution
A drive assist device that uses an on-board camera to acquire and recognize road information, determining priority relations between roads and providing assistance to the vehicle based on this information, eliminating the need for roadside communication devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If communication devices are installed on roads to provide drive assistance, then the reliability of collision prevention is improved, but the adaptability to different road conditions deteriorates because the system cannot be used on roads without communication devices
Solution Approach 1:
The drive assist device uses its own onboard camera to capture and recognize road information independently, without relying on external communication devices. The system processes images locally to determine road priority relations and provides assistance, making the system self-sufficient and adaptable to any road condition where cameras can capture images.
Solution Approach 2:
The patent replaces the communication-based system with an image recognition-based system. Instead of using communication devices to transmit road information, the system uses onboard cameras to capture images and recognizes road information (such as road signs and markings) through image processing, thereby eliminating the need for roadside communication infrastructure.
2Measurement precision
If communication devices are used to acquire road information, then the measurement precision of road conditions is improved, but the device complexity increases due to requirements for communication infrastructure
Solution Approach 1:
The patent extracts the road information acquisition function from the communication device and relocates it to the onboard camera system. The camera captures images containing road information, and the image recognition unit processes these images locally to extract necessary road data, eliminating the need for complex communication infrastructure while maintaining measurement precision.
Solution Approach 2:
Instead of receiving road information through communication devices, the system creates a visual copy of the road environment through camera imaging. The image recognition unit then processes this visual copy to extract road information, effectively replacing the communication-based information acquisition with an image-based approach that reduces system complexity.
3Adaptability or versatility
If onboard camera and image recognition are used to determine road priority, then the adaptability to various road conditions is improved, but the measurement precision of road information may deteriorate compared to communication device data
Solution Approach 1:
The system performs preliminary actions by capturing images of road signs and markings in advance and recognizing road information from these images before making driving decisions. The image recognition unit processes the captured images to determine road priority relations, ensuring accurate measurement of road conditions while maintaining adaptability to various road environments.
Solution Approach 2:
The system uses feedback from image recognition results to continuously improve road information accuracy. The recognition unit processes captured images and provides feedback on detected road signs and markings, which are then used to determine road priority relations. This feedback mechanism ensures that the system maintains high measurement precision while adapting to different road conditions.
Data Source
AI summary
A drive assist device includes: an acquisition unit that acquires a captured image from an on-board camera; a recognition unit that recognizes road information of roads around a host vehicle on the basis of the captured image; a determination unit that determines, on the basis of the road information recognized by the recognition unit, a priority relation between a present road in which the host vehicle is running and an intersecting road that meets the present road; and an assist unit that executes, in response to the determination unit determining that the present road does not have priority over the intersecting road, drive assistance for the host vehicle when the host vehicle enters a place where the present road meets the intersecting road.