Camera device and cleaning robot

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Solution Overview

Problem

The existing binocular camera systems in cleaning robots face challenges with inaccurate positioning due to vibrations, which require disassembly for adjustments, making maintenance and repair inconvenient.

Innovation Solution

The camera apparatus features a mounting bracket with elastic connecting parts that allow for adjustable interference fit, enabling easy calibration and maintenance by using a ring structure around the mounting groove, allowing for precise adjustment of the optical axis distance without violent disassembly.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the binocular camera is fixed onto the mounting bracket through clearance fit and pasting, then the mounting process is simple and convenient, but the distance between optical axes changes due to vibration, resulting in inaccurate positioning

Engineering Contradiction:
Improvemounting convenienceVSAvoidpositioning accuracy
Core Design Contradiction:
Ease of manufactureVSMeasurement precision

Solution Approach 1:

The mounting structure transitions from a static clearance fit to a dynamic interference fit with elastic connecting parts. The elastic parts allow the camera to be firmly held while accommodating minor dimensional variations, maintaining both mounting convenience and positioning accuracy under vibration conditions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The fit type between camera and mounting groove changes from clearance fit to interference fit. This parameter change increases the connection strength and stability, preventing the distance between optical axes from changing due to vibration, thereby improving positioning accuracy while maintaining ease of manufacture through the adjustable elastic connecting parts.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If the distance between optical axes is adjusted by violent disassembly, then the optical axis distance can be corrected, but the maintenance and repair process becomes extremely inconvenient

Engineering Contradiction:
Improveoptical axis distance accuracyVSAvoidmaintenance convenience
Core Design Contradiction:
Measurement precisionVSEase of repair

Solution Approach 1:

The mounting structure allows dynamic adjustment of the camera position through the elastic connecting parts. The adjustable thickness of the elastic parts enables optical axis distance correction without violent disassembly, maintaining positioning accuracy while greatly improving maintenance convenience.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The mounting bracket is segmented into multiple components including the mounting groove, elastic connecting parts, and camera mounting interface. This segmentation allows the camera to be easily removed and repositioned by adjusting the elastic parts, enabling optical axis distance correction without violent disassembly of the entire assembly.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If the camera is in clearance fit with the mounting groove, then the mounting is easy, but the camera position is unstable under vibration

Engineering Contradiction:
Improvemounting easeVSAvoidcamera position stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The fit type parameter changes from clearance fit to interference fit, fundamentally altering the interaction between the camera and mounting groove. This change provides stable camera positioning under vibration while maintaining ease of operation through the adjustable elastic connecting parts that accommodate dimensional variations.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The elastic connecting parts act as intermediaries between the mounting groove and the camera. These parts provide a stable connection under vibration while allowing for easy mounting and adjustment, mediating between the requirements for mounting ease and position stability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution provides a camera system with improved shockproof performance and stability, allowing for easy adjustment and replacement of camera positions, facilitating maintenance and reducing the risk of inaccurate positioning due to vibrations.

Implementation Method 1

the camera is in interference fit with the mounting groove through the elastic connecting part, so that the camera is connected to the mounting groove under the action of an elastic force generated by the elastic connecting part due to squeezing and deformation

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentUS20220408995A1Camera device and cleaning robot
Publication Date: 2022.12.29 BEIJING ROCKROBO TECH CO LTD
  • US20220408995A1 patent drawing
  • US20220408995A1 patent drawing
  • US20220408995A1 patent drawing

AI summary

A cleaning robot includes a machine body, a perception system, a control system, and a driving system; the perception system includes a laser distance sensor and a camera; the laser distance sensor is located on a top surface of the cleaning robot; and the camera is mounted on the cleaning robot through a mounting bracket, and a field of view of the camera includes a traveling direction of the cleaning robot. The camera apparatus is applied to the cleaning robot, and provides good shockproof performance and good stability. In addition, when a distance between optical axes of two cameras changes, the camera can be replaced and calibrated at any time, facilitating maintenance and repair.