Camera-Based Driver Assistance for Direction-Aware Collision Braking
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Solution Overview
Problem
Existing driver assistance systems may malfunction due to erroneous information from vehicle components, leading to ineffective collision avoidance and warning systems.
Innovation Solution
A driver assistance apparatus and method that utilizes a camera and controller to process image data, identify obstructing objects, predict collisions, determine the vehicle's direction of movement, and control the braking system accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driver assistance apparatus relies on information from vehicle components (engine, transmission, braking device, steering device), then the system can obtain driving status information, but the system may malfunction when erroneous information is received from these components
Solution Approach 1:
The patent introduces an image processing system as an intermediary to verify the authenticity of driving status information. The camera captures images of the road environment, and the controller analyzes these images to determine whether the vehicle is truly moving forward or backward by detecting the movement direction of road markings and objects. This intermediary verification mechanism prevents malfunction caused by erroneous information from vehicle components.
2Measurement precision
If the system uses image data to identify vehicle movement direction, then the system can accurately determine forward or backward movement, but the device complexity increases due to additional camera and image processing requirements
Solution Approach 1:
The patent makes the camera serve multiple functions: it not only captures images for movement direction detection but also identifies obstacles in the vehicle's path. The image processing algorithm simultaneously performs multiple tasks including determining forward/backward movement by analyzing road marking movement, detecting obstacles, and providing collision warnings. This multi-functionality reduces the need for separate sensors and systems.
Solution Approach 2:
The system uses the camera to capture images that serve itself by providing all necessary information for movement direction detection. The controller processes the captured images to automatically determine whether the vehicle is moving forward or backward without requiring additional dedicated sensors or complex external verification systems.
Data Source
AI summary
An apparatus for assisting driving of a host vehicle includes a camera mounted to the host vehicle and having a field of view outside of the host vehicle, the camera configured to obtain image data; and a controller configured to process the image data, identify at least one object obstructing the host vehicle's driving based on the image data, predict a collision with the at least one object, identify whether the host vehicle is moving forward or backward based on the image data and control a braking device of the host vehicle to brake the host vehicle depending on whether the host vehicle is moving forward or backward.