Line laser module and self-moving device
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Solution Overview
Problem
Current cleaning robots lack an efficient and modular sensing system for obstacle detection and navigation, particularly in navigating back to charging piles, which affects their autonomous operation and maintenance convenience.
Innovation Solution
A linear laser module integrated with a camera apparatus, linear laser emitters, and a return-to-pile positioning apparatus, allowing for modular design and assembly, enables the robot to detect obstacles and navigate to charging piles using infrared signals, while adjustable laser emitters enhance field-of-view alignment with the camera.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If sensing components are integrated into a modular linear laser module, then ease of repair and maintenance is improved, but device complexity increases
Solution Approach 1:
The sensing system is segmented into a standalone linear laser module that can be independently removed and replaced. This module contains the camera apparatus, linear laser emitter, and return-to-pile positioning apparatus, allowing maintenance without disassembling the entire robot system.
Solution Approach 2:
The linear laser module serves multiple functions simultaneously: obstacle detection via camera, distance measurement via linear laser emitter, and charging pile positioning via infrared receiver. This multi-functional integration reduces the number of separate components needed.
2Measurement precision
If linear laser emitter and camera are coordinated for obstacle detection, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The camera apparatus and linear laser emitter are merged into a single coordinated sensing system within the linear laser module. The laser provides structured lighting that enhances the camera's ability to measure distance and detect obstacles with higher precision.
Solution Approach 2:
The linear laser emitter acts as an intermediary that projects a visible reference pattern onto obstacles, which the camera then captures. This intermediary laser pattern enables more accurate depth calculation and obstacle characterization than camera alone.
3Reliability
If return-to-pile positioning apparatus is integrated into the module, then navigation reliability is improved, but device complexity increases
Solution Approach 1:
The return-to-pile positioning apparatus uses the same infrared reception capability for both obstacle detection assistance and charging pile navigation. This multi-functional use of infrared sensing improves reliability without requiring completely separate navigation hardware.
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
Enhances the robot's ability to autonomously navigate and detect obstacles, improves charging efficiency, and simplifies maintenance by integrating sensing components into a modular system, ensuring reliable operation and easy repair.
Implementation Method 1
at least one linear laser emitter, disposed on both sides of the camera apparatus and configured to emit a laser having a linear projection
Implementation Method 2
a return-to-pile positioning apparatus, for receiving a first infrared signal emitted by a charging pile
Implementation Method 3
an optical filter, disposed in front of the camera apparatus and configured to only allow infrared light to enter the camera apparatus
Data Source
AI summary
A linear laser module and a self-moving device are provided. The linear laser module is applied for the self-moving device, and includes: a camera apparatus for acquiring an ambient image; at least one linear laser emitter, disposed on both sides of the camera apparatus, and configured to emit a laser having a linear projection, the camera apparatus working in coordination with the at least one linear laser emitter; and a return-to-pile positioning apparatus for receiving a first infrared signal emitted by a charging pile. Thereby, a sensing component communicatively connected to the charging pile, and a sensing component for measuring a road condition in front of a device body, are integrated into the linear laser module, thereby allowing a modular design of a sensing system, which is convenient for assembly and repair.