Fault-Tolerant Surround View Monitoring Using Backup Camera Feeds
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Solution Overview
Problem
Existing surround view monitoring systems for vehicles fail to provide a continuous omnidirectional view when one or more cameras are disabled, posing a safety risk during driving or parking.
Innovation Solution
A fault-tolerant surround view monitoring apparatus that utilizes images from adjacent SVM cameras and built-in cameras to generate and display a surround view image, even if one or more SVM cameras fail, without requiring additional hardware configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional cameras are added to ensure omnidirectional view coverage, then the reliability of the surround view system is improved, but the device complexity and cost increase
Solution Approach 1:
The built-in cam, originally designed for dashcam functionality, is made multi-functional by enabling it to serve as a backup for front and rear SVM cameras. The controller detects failures and dynamically switches to using built-in cam images, allowing one component to perform multiple roles and eliminating the need for additional dedicated backup cameras.
Solution Approach 2:
The system uses its own existing built-in cam component to compensate for SVM camera failures, rather than requiring external additional hardware. The built-in cam serves the dual purpose of its original function plus providing backup capability for the surround view system, making the system self-sufficient.
2Measurement precision
If the system uses only SVM cameras for surround view, then the image quality is improved, but the system reliability deteriorates when cameras fail
Solution Approach 1:
The system prepares backup image sources (built-in cam) in advance for potential SVM camera failures. The controller continuously monitors SVM camera status and has pre-established alternative image sources ready to compensate when failures occur, ensuring continuous surround view functionality without interruption.
Solution Approach 2:
The controller acts as an intermediary that selectively combines images from SVM cameras and built-in cam based on system status. When SVM cameras fail, the controller mediates by substituting built-in cam images into the surround view composition, maintaining system functionality despite component failures.
3Reliability
If the system switches to built-in cam images when SVM cameras fail, then the reliability is improved, but the ease of operation deteriorates due to complex switching logic
Solution Approach 1:
The system performs automatic failure detection and switching without requiring driver intervention. The controller autonomously monitors SVM camera status, detects failures, and switches to built-in cam images automatically, maintaining simple operation for the driver while ensuring continuous surround view functionality.
Solution Approach 2:
The controller continuously monitors the operational status of SVM cameras and uses this feedback to automatically determine when to switch between SVM camera images and built-in cam images. This closed-loop monitoring and automatic response simplifies operation by eliminating manual intervention while ensuring reliable surround view availability.
Data Source
AI summary
A surround view monitoring apparatus with fault tolerance and an operating method thereof. The surround view monitoring apparatus includes a plurality of SVM cameras, a SVM controller and an SVM display. The plurality of SVM cameras are configured to capture surrounding areas of a vehicle. The SVM controller is configured to determine whether at least one of the plurality of SVM cameras has failed and to generate a surround view image based on images captured by the plurality of SVM cameras. The SVM display is configured to display the generated surround view image.