Rear-Seat Camera Display Control for Occupant Visibility in Vehicles
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Solution Overview
Problem
Drivers have difficulty recognizing rear-seat occupants due to limited visibility through conventional rear-view mirrors and rear cameras, which primarily focus on road situations rather than occupant observation.
Innovation Solution
A vehicle system incorporating rear and rear-seat cameras, microphones, and a controller to selectively display rear and rear-seat images, including face recognition and audio data processing, to enhance occupant visibility in the rear seats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a conventional rear-view mirror or rear camera is used to display the rear road situation, then the driver can observe the rear road, but the driver cannot easily recognize rear-seat occupants due to the limited visual field and focus on road situations
Solution Approach 1:
The system divides the monitoring function into two separate camera systems: a rear camera for road situation monitoring and rear-seat cameras for occupant observation. This segmentation allows each camera to be optimized for its specific function, with rear-seat cameras positioned and angled specifically to capture occupant images, thereby resolving the contradiction between road observation and occupant visibility.
Solution Approach 2:
The controller acts as an intermediary that processes images from multiple cameras and selectively displays them on the electronic room mirror. When occupant recognition is needed, the controller switches the display to show rear-seat camera images, mediating between the road monitoring function and occupant observation function to ensure both can be performed effectively.
2Loss of information
If the electronic room mirror displays only the rear image, then the road situation can be monitored, but the occupant observation capability is insufficient
Solution Approach 1:
The electronic room mirror is designed with multi-functionality, serving both as a road situation display and an occupant observation device. By integrating the rear-seat camera system with the existing electronic room mirror, the system achieves dual functionality without requiring separate dedicated displays, thereby reducing overall device complexity while improving occupant detection.
Solution Approach 2:
The system merges the road monitoring function (rear camera) and occupant observation function (rear-seat cameras) into a single integrated display system. The controller manages both camera inputs and selectively displays them on the same electronic room mirror, combining multiple functions into one system to avoid the complexity of multiple separate systems.
3Ease of operation
If rear-seat cameras are added to capture occupant images, then occupant visibility improves, but the system complexity increases
Solution Approach 1:
The system dynamically switches between displaying rear camera images and rear-seat camera images based on the driver's needs. The controller can selectively activate and display from the rear-seat cameras only when occupant observation is required, rather than continuously operating all cameras, thereby reducing the effective complexity while maintaining observation capability when needed.
Data Source
AI summary
A vehicle, which includes a display and enables a driver to easily observe an occupant in a rear seat, includes a rear camera configured to acquire a rear image and having a visual field directed toward a rear side of the vehicle, a display part configured to display the rear image, at least one rear-seat camera configured to acquire at least one rear-seat image and each having a visual field directed toward the rear seat of the vehicle, and a controller configured to control the display part to display all the rear image and the at least one rear-seat image on the basis that a preset condition is satisfied.