In-Vehicle Monitor Abnormality Detection and Display Switching
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Solution Overview
Problem
Existing in-vehicle Camera Monitor Systems (CMS) do not adequately address abnormalities in both cameras and monitors, leading to a lack of visibility and reliability when an issue occurs with the monitor displaying the rear side of a vehicle.
Innovation Solution
An in-vehicle information processing device and system that includes multiple cameras and monitors, with a control unit capable of detecting abnormalities in monitors and cameras, switching image display from a faulty monitor to a secondary monitor, and generating alert information to ensure continuous rear-side visibility and prompt notification of issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single monitor is used to display the rear side image, then the device structure is simple, but the reliability deteriorates when the monitor malfunctions
Solution Approach 1:
The system changes the operational state of the monitor from normal to abnormal, and automatically switches the image output from the first monitor to the second monitor when abnormality is detected, thereby maintaining reliability without requiring permanent dual-monitor configuration
Solution Approach 2:
The system performs preliminary actions by detecting monitor abnormalities and switching to backup display before the malfunction completely disables the rear-view function, ensuring continuous operation and maintaining reliability
2Reliability
If monitor abnormality detection and switching function is added, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The control unit performs multiple functions: it controls the cameras, manages both monitors, detects abnormalities, and executes switching operations. This multi-functionality reduces the need for separate dedicated components, thereby improving reliability without proportionally increasing device complexity
Solution Approach 2:
The system implements feedback by detecting monitor abnormality states and automatically responding with switching actions. This closed-loop control improves reliability through automatic error correction without requiring complex manual intervention systems
3Loss of information
If alert information is generated and displayed, then the information completeness is improved, but the device complexity increases
Solution Approach 1:
The control unit that already manages camera and monitor operations is extended to generate and display alert information. This multi-functional approach ensures complete information feedback about system status without adding separate alert generation hardware, thereby reducing the impact of increased complexity
Data Source
AI summary
An in-vehicle information processing device according to an embodiment of the present technology includes a control unit. The control unit detects presence or absence of an abnormality of a first monitor that displays a first image captured by a first camera among a plurality of cameras that capture an image of a predetermined region including a rear side of a vehicle, and switches, when detecting the abnormality of the first monitor, from a first mode in which the first image is displayed on the first monitor to a second mode in which the first image is displayed on a second monitor different from the first monitor.