Rotatable Camera Assembly for Adjustable Refrigerator Imaging

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Solution Overview

Problem

Conventional refrigerator appliances with built-in cameras lack versatility as they have a fixed orientation, leading to inefficient imaging and user dissatisfaction due to inability to adjust the field of view or monitor specific regions within the chilled chamber.

Innovation Solution

A rotatable camera assembly within the refrigerator that can be manually or automatically adjusted by the user to change its field of view, allowing for focused imaging of desired areas within the chilled chamber, coupled with a controller to obtain and modify images based on the camera's position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed orientation camera is used in the refrigerator appliance, then the device complexity is reduced and manufacturing is simplified, but the adaptability and versatility of the imaging system deteriorates

Engineering Contradiction:
Improvefield of view adjustmentVSAvoidcamera assembly structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The camera assembly is made rotatable about a pivot axis, transforming it from a static fixed-orientation device to a dynamic adjustable one. The rotation mechanism allows the camera to change its field of view between different positions (e.g., first position for overall chamber view, second position for focused shelf view), resolving the contradiction between adaptability and complexity by introducing controlled motion without excessive mechanical complexity

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The single rotatable camera assembly serves multiple imaging functions by adjusting its orientation. It can capture wide-angle views of the entire chilled chamber, focused views of specific shelves or regions, and intermediate angles, replacing what would otherwise require multiple fixed cameras. This multi-functionality improves adaptability while avoiding the complexity of multiple camera systems

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If a fixed orientation camera is used, then the device structure is simplified, but the imaging precision and relevance to user needs deteriorates

Engineering Contradiction:
Improveimaging focus accuracyVSAvoidcamera positioning mechanism
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The camera assembly can be rotated to specific positions (first position, second position) to achieve focused imaging of desired regions. This dynamic positioning allows the system to capture precise views of specific shelves or items when needed, improving imaging precision without requiring complex automated positioning mechanisms

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system includes a controller that automatically crops and processes images based on the camera's detected position. This self-service approach refines the focused views without adding mechanical complexity, as the image processing software automatically adjusts the field of view based on where the camera is pointing, achieving precision through intelligence rather than mechanics

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If a rotatable camera assembly with image cropping is implemented, then the adaptability and user satisfaction improve, but the processing time and computational resources increase

Engineering Contradiction:
Improvecustomizable field of viewVSAvoidimage processing time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The controller detects the camera position and pre-determines the appropriate crop region based on the known field of view characteristics for each position. By having pre-programmed knowledge of what each camera position should capture, the system can quickly crop and process images without requiring complex real-time analysis, reducing processing time while maintaining adaptability

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system creates cropped copies of the full images to generate the focused views. Rather than processing multiple full-resolution images from multiple cameras, it efficiently generates the needed focused views by cropping appropriate regions from the single camera's output, reducing computational overhead while providing customized views

Inventive Principle:
Principle #26Copying

Data Source

PatentUS12063456B2Adjustable camera assembly in a refrigerator appliance
Publication Date: 2024.08.13 HAIER US APPLIANCE SOLUTIONS INC
  • US12063456B2 patent drawing
  • US12063456B2 patent drawing
  • US12063456B2 patent drawing

AI summary

A refrigerator appliance is provided including a cabinet defining a chilled chamber, a door rotatably hinged to the cabinet to provide selective access to the chilled chamber, and a camera assembly positioned within the chilled chamber and being rotatable between a first position and a second position. A controller is configured to obtain one or more images using the camera assembly, determine a position of the camera assembly, and generate a modified image by cropping the one or more images based on a field of view associated with the position of the camera assembly.