Vehicle Camera Recording Control During Power Outage

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Solution Overview

Problem

Existing recording control systems for vehicles equipped with multiple cameras lack effective solutions for managing power supply disruptions, leading to incomplete or lost image data during power outages.

Innovation Solution

A recording control apparatus that includes a captured image acquisition unit, an auxiliary power unit, an electric power supply source switching unit, an electric energy acquisition unit, a recording control unit, a degree-of-importance determination unit, and a recordable duration time calculation unit, which prioritizes and extends the recording time of the most important image files using auxiliary power when the main power is cut off, ensuring critical data is preserved.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If image recording continues during power outage using auxiliary power, then critical image data is preserved, but auxiliary electric energy is consumed faster

Engineering Contradiction:

Improveimage data preservationVSAvoidauxiliary electric energy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system applies different recording strategies to different image files based on their importance. Critical images (front and rear cameras) continue recording with extended duration using auxiliary power, while less critical images (side cameras) have their recording stopped or duration reduced. This selective approach preserves the most important data while conserving limited auxiliary energy resources.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The system dynamically changes the recording duration parameter based on power availability and image importance. During power outages, the recording duration for critical images is extended beyond normal limits by utilizing auxiliary power, while the duration for non-critical images is reduced or stopped. This parameter adjustment resolves the contradiction between data preservation and energy consumption.

Inventive Principle:

Principle #35Parameter changes

2Duration of action of moving object

If recording duration is extended for all image files during power outage, then more complete data is captured, but auxiliary electric energy is depleted too quickly

Engineering Contradiction:

Improverecording durationVSAvoidauxiliary electric energy consumption

Core Design Contradiction:

Duration of action of moving objectVSUse of energy by moving object

Solution Approach 1:

Instead of uniformly extending recording duration for all image files, the system applies extended duration selectively only to critical image files (front and rear cameras) while maintaining normal or reduced duration for non-critical files (side cameras). This localized approach achieves the goal of capturing complete critical data without depleting auxiliary energy too quickly.

Inventive Principle:

Principle #3Local quality

3Reliability

If multiple image files are recorded simultaneously during power outage, then comprehensive coverage is achieved, but auxiliary electric energy is consumed at higher rate

Engineering Contradiction:

Improvedata completenessVSAvoidauxiliary electric energy consumption rate

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system prioritizes recording continuity for critical image files (front and rear cameras) while stopping or reducing recording for non-critical image files (side cameras) during power outages. This selective recording strategy ensures comprehensive coverage of critical data while reducing the overall energy consumption rate to match available auxiliary power.

Inventive Principle:

Principle #3Local quality

4Use of energy by moving object

If recording is stopped for non-critical images during power outage, then auxiliary electric energy is conserved, but less complete data is captured

Engineering Contradiction:

Improveauxiliary electric energy conservationVSAvoidimage data completeness

Core Design Contradiction:

Use of energy by moving objectVSLoss of information

Solution Approach 1:

The system accepts partial data loss for non-critical image files (side cameras) while preserving complete data for critical image files (front and rear cameras). This differentiated approach conserves auxiliary energy by stopping non-critical recording while maintaining data completeness for the most important images, resolving the contradiction between energy conservation and data completeness.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS11700447B2Recording control apparatus for plurality of images, recording control method for plurality of images, and non-transitory computer readable medium storing plurality of images

Publication Date: 2023.07.11 JVC KENWOOD CORP

AI summary

An image recording apparatus includes a recording control unit that records a captured image acquired by the camera image acquisition unit in an image file for each of front cameras, and the degree-of-importance determination unit that determines a degree of importance of each of the plurality of image files. The recording control unit continues to record the captured image in a first image file, and executes close processing on the first image file at a timing based on a recordable duration time during which the captured image is continuously recorded in the first image file as an image file having the highest degree of importance when an electric power supply from a main power unit is cut off and the electric power supply source is switched by an electric power supply source switching unit.