Imaging Apparatus Battery Level Adaptive Control

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Solution Overview

Problem

Conventional imaging apparatuses driven by batteries face challenges in extending drive time due to insufficient power consumption reduction, especially when dealing with large amounts of image data, leading to inadequate battery life.

Innovation Solution

The imaging apparatus includes a remaining battery level detection unit and a control unit that adjusts the data amount, resolution, and processing volume of image data capture by controlling the solid-state imaging element, such as reducing the number of pixels, bit depth, and frame rate, and employing adaptive compression and voltage control based on battery level.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If the number of encoded images is reduced to decrease processing volume and power consumption, then the drive time can be extended, but the frame rate of the encoded moving image decreases

Engineering Contradiction:
Improvedrive timeVSAvoidframe rate
Core Design Contradiction:
Duration of action of moving objectVSProductivity

Solution Approach 1:

The patent applies dynamics by making the imaging parameters adjustable and changeable based on battery status. The control unit dynamically changes the number of captured images, resolution, and other parameters according to the remaining battery level, transforming a static system into a dynamic one that adapts to changing energy conditions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes by modifying multiple imaging parameters including the number of captured images, resolution (number of pixels), compression ratios, and frame rates. These parameter adjustments are made in response to battery status to optimize the balance between drive time and output quality.

Inventive Principle:
Principle #35Parameter changes

2Duration of action of moving object

If the processing volume of encoding processing is reduced to decrease power consumption, then the drive time can be extended, but the amount of individual image data remains large causing insufficient power consumption reduction

Engineering Contradiction:
Improvedrive timeVSAvoidpower consumption
Core Design Contradiction:
Duration of action of moving objectVSLoss of energy

Solution Approach 1:

The patent applies preliminary action by reducing the data amount at the capture stage itself, rather than relying solely on subsequent encoding processing. The control unit preemptively adjusts the number of pixels, resolution, and captured image count before encoding occurs, thereby reducing the total processing volume and power consumption from the source.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent implements comprehensive parameter changes affecting both capture and encoding stages. Parameters such as number of pixels, resolution, compression ratios, and frame rates are adjusted based on battery status to achieve sufficient power consumption reduction throughout the entire imaging pipeline.

Inventive Principle:
Principle #35Parameter changes

3Loss of energy

If the resolution of image data is reduced to decrease data amount, then the power consumption can be reduced, but the image quality deteriorates

Engineering Contradiction:
Improvepower consumptionVSAvoidimage quality
Core Design Contradiction:
Loss of energyVSManufacturing precision

Solution Approach 1:

The patent applies dynamics by making resolution adjustable based on battery status. Rather than using a fixed low resolution, the system dynamically changes the number of pixels and resolution levels according to remaining battery level, allowing high image quality when energy is abundant and lower quality when energy is scarce.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes in resolution by adjusting the number of pixels and image dimensions based on battery status. This allows the system to optimize the balance between power consumption and image quality by changing resolution parameters in response to energy conditions.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11399147B2Imaging apparatus, and imaging apparatus control method
Publication Date: 2022.07.26 SONY SEMICON SOLUTIONS CORP
  • US11399147B2 patent drawing
  • US11399147B2 patent drawing
  • US11399147B2 patent drawing

AI summary

To extend drive time in an imaging apparatus driven by a battery.The imaging apparatus includes a remaining battery level detection unit, a solid-state imaging element, and a control unit. In the imaging apparatus, the remaining battery level detection unit detects a remaining battery level of the battery. Furthermore, in the imaging apparatus, the solid-state imaging element captures image data. Moreover, in the imaging apparatus, the control unit controls the solid-state imaging element to capture image data so that the lower the remaining battery level measured by a remaining battery level measurement unit, the smaller the data amount of the image data to be captured in synchronization with a predetermined synchronization signal.