Intelligent Door Knob Mechanical Energy Transmission Control
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Solution Overview
Problem
Conventional door lock systems, particularly those with deadbolts, are susceptible to unauthorized access due to manual operation requirements and lack of electronic control redundancy, leading to potential unauthorized entry and theft, especially in settings like motel and hotel rooms where key-actuated deadbolts are not standard.
Innovation Solution
An intelligent door knob system that integrates a mechanism to control the transmission of displacement or rotational mechanical energy, coupled with an energy source and wireless communication, allowing manual operation and authorization through a mobile device, enabling secure and independent electronic and manual lock operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual operation of deadbolt is required for effective locking, then security against unauthorized access is improved, but ease of operation deteriorates and risk of forgetting to lock increases
Solution Approach 1:
The door closing mechanism automatically actuates the deadbolt to the locked position without requiring manual intervention. The system serves itself by using the door's closing motion to trigger the locking action, eliminating the need for users to remember to manually lock the deadbolt while maintaining security.
Solution Approach 2:
The deadbolt is automatically extended to the locked position as the door closes, performing the locking action in advance before the user needs to enter or exit. This preliminary automatic locking ensures security is established before any potential unauthorized access attempt.
2Device complexity
If manual actuation of deadbolt is required, then device complexity is reduced, but reliability deteriorates due to human error in actuation
Solution Approach 1:
The system automatically performs the deadbolt actuation function using the door's closing motion as the trigger, making the system self-sufficient and eliminating dependence on human memory or action. This maintains mechanical simplicity while dramatically improving reliability by removing the human error factor.
3Ease of operation
If electronic control system is added for automatic deadbolt actuation, then ease of operation is improved and reliability against human error increases, but device complexity increases
Solution Approach 1:
The patent replaces complex electronic control systems with a purely mechanical actuation mechanism. The door closing motion mechanically triggers the deadbolt extension through linkages and cam mechanisms, achieving automatic operation without electronics, thereby improving ease of operation while minimizing device complexity.
4Ease of operation
If latch mechanism alone is used for door locking, then ease of operation is maintained, but security deteriorates due to susceptibility to unauthorized depression-release
Solution Approach 1:
The system merges the latch mechanism with an independently actuated deadbolt mechanism. The latch provides ease of operation for frequent door openings, while the deadbolt provides enhanced security against forced entry and unauthorized manipulation. Both mechanisms work together to satisfy opposing requirements.
Solution Approach 2:
The locking system is segmented into two independent functions: the latch for frequent operation and the deadbolt for security. Each mechanism can be actuated independently, allowing the latch to remain easily operable while the deadbolt provides robust security that cannot be easily compromised by card-type elements or pry bars.
Data Source
AI summary
A door lock system includes a knob and an apparatus that controls transmission of displacement or rotational mechanical energy. A bolt is coupled to a door, an input rod and an output rod. At least one of an interior or exterior knob is coupled to the bolt and the apparatus that controls transmission of displacement or rotational mechanical energy. An energy source is coupled to the apparatus that controls transmission of displacement or rotational mechanical energy. The mobile device provides authorization to engage the apparatus that controls transmission of displacement or rotational mechanical energy and allows a door user to manually open the door.