Sweeping robot
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Solution Overview
Problem
Existing sweeping robots rely on non-contact sensors, such as infrared sensors, which are inaccurate for detecting diffusible dirt like pet excrement, leading to poor detection judgment.
Innovation Solution
The implementation of a contact-type detection electrode on a sweeping robot that changes capacitance, resistance, or impedance upon contact with diffusible dirt, allowing for more accurate detection through changes in current in a detection circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If non-contact sensors are used for detection, then the robot can avoid direct contact with dirt, but detection accuracy deteriorates
Solution Approach 1:
The detection system is segmented into multiple independent detection electrodes arranged in arrays. Each electrode independently detects capacitance changes when contacting diffusible dirt, and the system integrates signals from multiple electrodes to achieve accurate detection while maintaining the ability to avoid contamination through controlled response actions.
Solution Approach 2:
The detection electrodes are positioned at the front of the robot body, ahead of the cleaning components. This preliminary positioning allows the electrodes to detect diffusible dirt before the robot's cleaning mechanisms encounter it, enabling advance response actions that prevent contamination of the robot's rear portions and driving components.
2Measurement precision
If contact-type detection electrode is placed at the front, then detection accuracy improves, but robot contamination risk increases
Solution Approach 1:
The contact-type detection electrodes are strategically positioned at the front of the robot body, ahead of the cleaning components and driving wheels. This preliminary positioning enables the electrodes to make contact with diffusible dirt first, triggering detection signals that allow the robot to respond before contamination reaches critical components, thus maintaining both high detection accuracy and minimal contamination risk.
Solution Approach 2:
The system implements real-time feedback through detection circuits that immediately respond to capacitance changes in the detection electrodes. When diffusible dirt contacts the front-positioned electrodes, the system receives immediate feedback signals and executes response actions (such as adjusting cleaning operations or navigation) to prevent contamination before it affects the robot's main body and driving components.
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 significantly improves the accuracy of dirt detection, enabling the sweeping robot to make more precise judgments and avoid contamination, thus maintaining cleanliness.
Implementation Method 1
a capacitance, a resistance, or an impedance of the contact-type detection electrode changes, such that current in a detection circuit where it is located changes
Implementation Method 2
a capacitance, a resistance, or an impedance of the contact-type detection electrode changes
Data Source
Figure 1~2
Figure 3~4
AI summary
Disclosed by the present invention is a sweeping robot, wherein the sweeping robot comprises: a base plate and a contact-type detection electrode; the contact-type detection electrode is mounted at a front portion of the base plate. When the contact-type detection electrode makes contact with dirt that may be dispersed, the resistance, capacitance or impedance of the contact-type detection electrode changes. The technical solution of the present invention is helpful in improving the detection accuracy of a sweeping robot.