Vehicle Record-Play Control Device Narrowing View Angle
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Solution Overview
Problem
Existing on-vehicle record-and-replay devices capture video data with a wide field of view, making it difficult to accurately check event status due to small object sizes when replayed.
Innovation Solution
The device replays event recording data with a narrower angle of view, specifically up to 90 degrees horizontally and 50 degrees vertically, with enlargement in the event detection direction, allowing for better object recognition and event status verification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If video data is captured with a wide field of view (100 degrees or larger horizontally or 360 degrees around the vehicle), then the coverage range around the vehicle is expanded, but the captured objects appear in small sizes making it difficult to check event status
Solution Approach 1:
The patent applies dimensionality change by switching between two different angle of view dimensions: a first angle of view (100 degrees or larger horizontally or 360 degrees) for wide coverage, and a second angle of view (narrower than the first) for detailed object inspection. This allows the system to navigate between different viewing dimensions to resolve the contradiction between coverage area and object visibility.
Solution Approach 2:
The system dynamically switches between the first and second angle of views based on operational needs. The display control unit changes the angle of view from the first wide angle to the second narrower angle when detailed event status checking is required, making the transition adaptive and dynamic rather than static.
2Measurement precision
If video data is captured with a narrow angle of view, then captured objects appear in larger sizes for better recognition, but the coverage range around the vehicle is reduced
Solution Approach 1:
The patent utilizes dimensionality change by maintaining two distinct angle of view modes: a narrow second angle of view for detailed object inspection and a wide first angle of view for comprehensive coverage. The system can switch between these dimensional perspectives depending on whether the priority is object visibility or coverage area.
Solution Approach 2:
The system employs dynamic switching between narrow and wide angle of views based on the operational context. When event status checking is prioritized, the system transitions to the narrow angle of view; when comprehensive monitoring is needed, it switches to the wide angle of view, creating a dynamic adaptation to different operational requirements.
Data Source
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AI summary
An event status is appropriately checked. A record-and-replay control device 100 includes a video data acquiring unit 120 configured to acquire video data, an event detecting unit 127 configured to detect an event with respect to a vehicle, an event detection direction acquiring unit 129 configured to acquire an event detection direction with respect to the vehicle, a recording control unit 123 configured to store, when the event detecting unit 127 detects an event, video data caused by the detected event as event recording data with the first angle of view, a replay control unit 124 configured to replay the event recording data stored in the recording control unit 123, and a display control unit 126 configured to cause a display unit 240 to display the event recording data replayed by the replay control unit 124, by adopting a second angle of view with enlargement in the event detection direction detected by the event detection direction acquiring unit 129.