Server device and door control device
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Solution Overview
Problem
Existing door unlock systems require user permission for unlocking, which is not feasible when receiving packages from third parties without prior notification.
Innovation Solution
A server device and door control device system that allows a courier to unlock a door without user permission by using a service number, such as a package tracking number, for authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user permission is required for door unlocking, then security is improved, but delivery convenience deteriorates when receiving packages from third parties without prior notification
Solution Approach 1:
The patent introduces a courier identification device as an intermediary that carries service identification information. This mediator enables the door control device to verify courier identity without requiring direct user permission, thus maintaining security while improving delivery convenience. The service identification information acts as a trusted intermediary credential that bridges the gap between security requirements and delivery needs.
Solution Approach 2:
The system performs preliminary authentication by verifying the service identification information before the actual delivery action. The door control device checks the courier's credentials in advance, and upon successful verification, automatically unlocks the door. This preliminary verification action eliminates the need for real-time user permission during delivery, resolving the contradiction between security and convenience.
2Ease of operation
If advance user notification is required, then user control is improved, but delivery efficiency deteriorates
Solution Approach 1:
The door control device performs self-service by automatically verifying courier credentials and unlocking the door without requiring user intervention. The system uses pre-stored service identification information to autonomously make the unlocking decision, eliminating the need for advance user notification while maintaining appropriate control through cryptographic verification mechanisms.
Solution Approach 2:
The system implements feedback through the verification process where the door control device receives service identification information, validates it against stored credentials, and automatically responds with door unlocking. This closed-loop feedback mechanism enables efficient delivery by eliminating manual notification steps while maintaining security through automated verification feedback.
3Reliability
If manual permission process is used, then security control is improved, but time consumption increases
Solution Approach 1:
The patent replaces the mechanical manual permission process with an automated electronic verification system. The door control device uses cryptographic verification of service identification information to substitute for manual user authorization. This substitution dramatically reduces unlocking time while maintaining security control through automated credential verification rather than manual intervention.
Data Source
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AI summary
It is intended to enable a service provider such as a courier to unlock a door without a permission of a user. A server device 12, which is capable of communicating with a door control device 10 that controls locking and unlocking of a door installed at an entrance of a multifamily residential, includes: storage means 70 that stores, for each user, a service number set by a service provider; request reception means 72 that receives, from the door control device 10, an unlock request including a device ID and the service number; authentication means 74 that executes an authentication based on information included in the unlock request and information stored in the storage means 70; and unlock instruction means 78 that transmits an unlock instruction to the door control device 10, when the authentication is succeeded.