NC Operating Panel Face Authentication for Operator Access Control
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Solution Overview
Problem
Existing personal identification systems for machining center NC operation panels are insecure due to risks of lost or stolen IC tags and cumbersome password-based authentication, which can lead to unauthorized operations.
Innovation Solution
A machining center NC operation panel with a face authentication system that uses an imaging device to capture and verify an operator's face image, linking it to pre-registered face data to restrict operations based on stored work information, allowing only authorized tasks to be performed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If IC tags are used for operator identification, then identification speed is improved, but security deteriorates due to risks of tags being lost, stolen or used by others
Solution Approach 1:
The patent uses face image data as a biometric copy of the operator's physical characteristics instead of physical IC tags. The imaging device captures the operator's face and compares it with pre-registered face image data, creating a digital replica for authentication that cannot be lost or stolen like physical tags.
Solution Approach 2:
The patent replaces the mechanical IC tag system with an optical imaging system. Instead of using physical tags that can be lost or stolen, the system uses an imaging device to capture and process facial features, substituting a mechanical identification method with an optical and computational approach.
2Reliability
If passwords are used for operator identification, then security is improved, but ease of operation deteriorates due to manual input requirements and potential input errors
Solution Approach 1:
The patent enables self-service authentication where the operator simply needs to present their face to the imaging device. The system automatically captures, processes, and verifies the facial data without requiring the operator to manually input any information, making the process both secure and convenient.
Solution Approach 2:
The patent replaces manual keyboard input with automated optical recognition. Instead of requiring operators to type passwords which can lead to input errors, the system uses an imaging device to automatically capture and verify facial features, eliminating the manual input step entirely.
3Reliability
If manual password input is required, then security verification is improved, but productivity deteriorates due to time-consuming authentication processes
Solution Approach 1:
The patent uses facial features as a biometric copy that can be rapidly captured and verified. The imaging device takes a picture of the operator's face and immediately compares it with pre-registered data, providing both high accuracy and fast authentication without the time-consuming nature of manual password entry.
Data Source
AI summary
A machining center NC operation panel is provided which can serve as a personal authentication system capable of simply and reliably identifying operators and implementing appropriate operational restrictions. The operation panel is provided with an imaging device mounted on its front or on a manual pulse generator for at-hand operation connected to the operation panel. In the operation panel: a storage unit stores an operator list allocated with work information prepared for each of the pre-registered operators, the work information including operations which the operators are respectively allowed to perform at a machine tool main body and restricted operations which the operators are not respectively allowed to perform, and a face image file holding a group of face image data on the operators registered in the operator list; and a control unit includes a face authentication processing unit which searches for and identifies an operator by checking operator face image data obtained from the imaging device against the group of face image data held in the face image file and a work information processing unit which obtains, from the operator list, work information associated with the identified operator and has, based on the obtained work information, a function of displaying work items the identified operator is allowed to perform in the display part.