Parking Video Recording Control for Event-Priority Overwrite
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Solution Overview
Problem
Existing dashboard camera systems save unnecessary video data during parking, leading to potential loss of relevant event data due to overwriting and inefficiencies in data management.
Innovation Solution
A recording control system that prioritizes recording and preserving video data during parking by detecting moving objects and events, ensuring critical data is not overwritten, and managing storage efficiently based on event relevance and object proximity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If video data is recorded upon detection of moving objects during parking, then the quantity of recorded video data increases, but the reliability of preserving relevant event data decreases due to unnecessary overwriting
Solution Approach 1:
The patent segments video data into two categories: event-related data (marked with event flags) and non-event data. This segmentation allows the system to apply different overwriting rules to different segments, preventing event data from being overwritten while allowing non-event data to be overwritten when storage is full.
Solution Approach 2:
The patent applies different quality characteristics to different portions of recorded data by marking event-related video data with special flags. This local quality differentiation enables the system to prioritize preservation of specific data portions (event data) over others (non-event data) when managing storage capacity.
2Quantity of substance
If all detected moving object video data is saved, then the quantity of recorded data increases, but the loss of relevant event data increases due to unnecessary overwriting of older recordings
Solution Approach 1:
The patent performs preliminary marking of video data with event flags at the time of recording. This preliminary action identifies and protects relevant event data before overwriting occurs, ensuring that such data is preserved even when storage capacity is exceeded.
Solution Approach 2:
The patent uses event detection flags as feedback mechanisms to inform the overwriting control system which data should be protected. This feedback loop ensures that event-related video data is continuously identified and protected from overwriting throughout the recording period.
3Device complexity
If video data is overwritten in order during parking recording, then the device complexity is reduced, but the reliability of preserving critical event data decreases
Solution Approach 1:
The patent changes the parameter of data priority by introducing event flags that mark certain video data as high-priority. This parameter change transforms the overwriting logic from simple chronological ordering to priority-based selection, protecting event data while maintaining relatively simple control mechanisms.
Data Source
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AI summary
A recording control device (100) includes: a photographic data acquisition unit (120) that acquires photographic data from a camera that photographs a periphery of a vehicle; a moving object detection unit (130) that detects a moving object from the photographic data acquired by the photographic data acquisition unit (120) while the vehicle is parked; and a recording control unit (123) that correlates detection information of the moving object with the photographic data, records the correlated information in a recording unit (20) as a data file that is capable of being overwritten, and when overwriting of the data file in the recording unit (20) becomes necessary, performs the overwriting by reducing the priority of overwriting on the data file in which the moving object is detected.