Automatic Nail Decorating Nozzle Protection With Redundant User Sensing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional nail decorating machines lack comprehensive safety protection mechanisms, particularly for human users, and existing collision detection devices are inadequate to prevent damage during operations.
Innovation Solution
A safety protection device with multiple sensors and modules, including computer vision, soft contact sensors, and emergency stop buttons, to manage and control nail decorating processes, ensuring user safety through real-time detection and protective actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional collision detection devices with hard materials and springs are used, then the printing nozzle is protected from damage due to collision, but only a certain degree of damage to printing workpieces is acceptable and user safety is not ensured
Solution Approach 1:
The safety protection system is divided into multiple independent detection modules: hard material collision detection device, soft contact sensor, and computer vision module. Each module operates independently to detect different aspects of potential hazards, providing comprehensive protection without relying on a single detection mechanism.
Solution Approach 2:
The patent implements nested protection mechanisms where the soft contact sensor is integrated within the print carriage structure, and the computer vision module monitors the entire workspace. Multiple detection layers are nested at different levels (contact level, proximity level, and visual monitoring level) to provide redundant safety protection.
2Device complexity
If simple collision detection devices are used, then the device complexity is low, but the safety protection level for users is insufficient
Solution Approach 1:
The patent replaces traditional purely mechanical collision detection with a hybrid system that incorporates soft contact sensors (electromechanical) and computer vision modules (optical-electronic). This substitution enables more sophisticated safety monitoring while maintaining reasonable device complexity through modular integration.
Solution Approach 2:
The computer vision module serves multiple functions: it monitors user safety, tracks print carriage position, and detects abnormal situations. The main control module integrates multiple detection inputs and coordinates various protection actions, demonstrating multi-functionality that reduces overall system complexity despite enhanced safety capabilities.
3Reliability
If multiple independent protection devices are deployed, then redundant protection is provided to prevent single sensor failure, but the device complexity increases
Solution Approach 1:
The patent merges multiple detection functions into integrated modules. The main control module consolidates inputs from the hard material collision detection device, soft contact sensor, and computer vision module, coordinating their operations centrally. This merging reduces the complexity of managing multiple independent protection devices while maintaining redundant protection capabilities.
Data Source
AI summary
A safety protection method for a fully automatic nail decorating, including: starting an arm detection device for a cabin door and a detection device for a hand slot, to perform a first protection action when a user is detected by either of them; starting a protection device for a printing nozzle, to perform a second protection action when a sensor is contacted with any position of a palm of the user, where the protection device includes the sensor; starting the arm detection device for the cabin door and the detection device for the hand slot, to perform a third protection action when the palm of the user is detected by either of them; and ending a nail decorating process and closing the cabin door, when the palm of the user is not detected by the arm detection device for the cabin door and the detection device for the hand slot.