Robot Trapping Detection Using Mechanical Displacement Sensing
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Solution Overview
Problem
Conventional sweeping robots often fail to detect when they are trapped in small spaces due to limitations in their sensor systems, which prevents effective communication of this issue to users.
Innovation Solution
A robot trapping detecting device that utilizes a shaft body to drive a convex body to rotate, causing a binding body to move up and down, and a sensing body to detect displacement changes in a linked component, determining whether the robot has stopped moving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sensors are disposed around the robot to sense obstacles, then obstacle avoidance function is achieved, but the robot cannot detect when it is trapped in small spaces
Solution Approach 1:
The patent replaces conventional optical/electronic sensors with a mechanical sensing system. A sensed body is pivotally connected to the driving module through supporting and linking components, allowing mechanical displacement to occur when the robot is trapped. This mechanical system converts the trapping condition into measurable physical displacement that can be detected by a sensing body, providing reliable trapping detection without requiring complex sensor arrays.
Solution Approach 2:
The patent introduces a sensed body as an intermediary element between the driving module and the detection system. The sensed body is disposed on the linking component and experiences displacement when the robot encounters obstacles in narrow spaces. This intermediary mechanically transmits the trapping condition from the driving wheels through the shaft body and convex portions to the detection mechanism, enabling reliable detection of trapped states.
2Loss of information
If the robot enters a small space and is trapped, then conventional sensors fail to sense the trapping condition, but the robot needs to communicate this issue to users
Solution Approach 1:
The patent implements a feedback mechanism where the sensing body continuously monitors the position of the sensed body through a sensing space. When the robot is trapped, the mechanical linkage causes the sensed body to displace, and the sensing body detects this displacement and transmits the trapping information back to the control system and ultimately to the user. This feedback loop ensures that trapping conditions are reliably detected and communicated, preventing information loss.
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
Effectively detects when a robot is trapped by sensing displacement changes, allowing for timely user notification and troubleshooting actions.
Implementation Method 1
the sensing body is a Hall sensor
Data Source
AI summary
A robot trapping detecting device, mainly uses a shaft body to drive a convex body to rotate, and a convex portion is disposed around the convex body, so when a binding surface of a binding body is touched to the convex body and the convex body is rotated to the disposing position of the convex portion, the binding body is driven upward, and then, when the convex body is rotated to a position other than the disposing position of the convex portion, the binding body is driven downward, so that a sensed body disposed on a linking component is driven up and down by the linking component, and a sensing body senses a displacement change of the sensed body to determine whether a robot has stopped moving.