Identity-Verified Refrigeration Box Door Control for Secure Delivery
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Solution Overview
Problem
Existing mobile refrigerators and heating boxes lack an automatic door opening and closing mechanism to ensure food safety during delivery and prevent spoilage due to user forgetfulness, and there is a risk of theft and poisoning when left unattended.
Innovation Solution
A method for automatically opening and closing the door of a refrigeration or heating box using user identity recognition, employing various sensors and a logic control unit to verify user authorization before allowing access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual door operation is used, then device complexity is low, but reliability of food safety is poor due to forgetfulness and theft risks
Solution Approach 1:
The refrigeration box performs door opening and closing operations automatically without requiring user manual operation. The control system detects user approach and automatically opens the door, then closes it after a set time or when the user leaves, making the system serve itself by eliminating the need for manual door management.
Solution Approach 2:
The manual mechanical door operation is replaced with an automated control system that uses sensors to detect user presence and triggers motor-driven door opening and closing mechanisms. This substitutes the purely mechanical manual system with an automated electromechanical system.
2Ease of operation
If automatic door opening is implemented, then ease of operation is improved, but device complexity increases due to sensor and control systems
Solution Approach 1:
The system automatically detects user presence and performs door opening operations without requiring users to manually operate buttons, handles, or locks. The refrigeration box serves itself by autonomously responding to user approach and providing convenient access.
Solution Approach 2:
Sensor systems act as intermediaries between the user and the door mechanism. The sensors detect user presence and transmit this information to the control system, which then activates the door opening mechanism, providing an indirect automated interface that enhances convenience.
3Reliability
If door remains closed for security, then reliability of food safety is improved, but ease of operation deteriorates due to access restrictions
Solution Approach 1:
The control system autonomously manages door security by detecting authorized users through sensor input and automatically granting access by opening the door. Authorized users simply approach the box, and the system itself handles the authentication and door opening without requiring manual intervention.
Solution Approach 2:
The door state dynamically changes from closed to open based on real-time sensor detection of authorized users. The system transitions between secure closed state and accessible open state automatically, providing adaptive security that maintains protection while enabling convenient authorized access.
Data Source
AI summary
A method of automatically opening and closing a door body of a refrigeration or heating box by recognizing a user identity, including: S1, obtaining, by a logic control unit of the refrigeration or heating box, user identity information based on information from an external sensor; S2, recognizing and determining, by the logic control unit, the user identity information to obtain a recognition result; in response to the recognition result being that the user identity information is not authorized, displaying, by a display screen of the refrigeration or heating box, an error prompt; and S3, in response to the recognition result being that the user identity information is authorized, opening, by a control circuit system of the refrigeration or heating box, the door body.