Parking Camera Recording Control for EV Charging and Battery Drain
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Solution Overview
Problem
Dashboard cameras in electric vehicles face challenges in maintaining continuous parking monitoring without draining the vehicle's battery, as existing systems either consume too much power or fail to record events effectively during charging.
Innovation Solution
A recording control device that switches between first and second parking recording modes based on the vehicle's power supply state, optimizing power usage by recording only when necessary and saving data before and after event detection during charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the dashboard camera keeps shooting while the vehicle is parked, then event detection capability is improved, but battery consumption increases and cruising distance is reduced
Solution Approach 1:
The system dynamically adjusts the recording mode based on the vehicle's power supply state. When charging is detected, the system switches to continuous recording with pre-event and post-event capture. When not charging, it transitions to event-triggered recording, thereby optimizing battery consumption while maintaining event detection capability across different operational states
Solution Approach 2:
The recording control unit changes the recording parameters (continuous vs. event-triggered) based on the power supply state. This parameter change allows the system to adapt its energy consumption profile to match the available power supply conditions, resolving the contradiction between event detection reliability and battery consumption
2Reliability
If the dashboard camera keeps shooting while the vehicle is parked, then event capture is improved, but vehicle range is reduced
Solution Approach 1:
The system dynamically switches between recording modes based on charging state detection. During charging periods, continuous recording with extended capture windows is enabled. During non-charging periods, the system reverts to event-triggered recording, thereby preserving vehicle range while maintaining event capture capability when needed
3Use of energy by moving object
If event-triggered recording is used during charging, then power consumption is reduced, but event detection capability is compromised
Solution Approach 1:
The system dynamically adapts its recording behavior based on the detected power supply state. When charging is detected, it enables continuous recording with pre-event and post-event capture to ensure complete event documentation. When not charging, it uses event-triggered recording to minimize power consumption, thus resolving the contradiction between power consumption and event detection capability
Data Source
AI summary
A recording control device includes a parking detection unit configured to detect a vehicle being parked; an event detection unit configured to detect an event related to the vehicle; a power supply state detection unit configured to detect a state of a power supply of the vehicle; and a recording control unit configured to, when the vehicle is parked, based on the state of the power supply of the vehicle, switch between first parking recording and second parking recording to be executed. The first parking recording is of starting recording the imaging data in response to detection of an event and saving the recorded imaging data as event recording data. The second parking recording is of keeping recording imaging data acquired from a camera and, in response to detection of an event, saving imaging data before and after detection of the event from the imaging data as event recording data.