Electronic Lock for Rollup Door with Solenoid Actuation
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Solution Overview
Problem
Conventional rollup door locking systems rely on externally accessible locks that can be cut by thieves, and require additional locks for tenant access control, leading to security and key management issues.
Innovation Solution
An electronic locking apparatus with a striker plate, latch assembly, and control system that allows remote control of locking and unlocking through a programmable logic controller, user interface, and memory storage device, eliminating the need for external locks and providing secure access management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional manual locking system with external locks is used, then the door can be locked and unlocked manually, but the locks are accessible by anyone from outside and can be cut by a bolt cutter
Solution Approach 1:
The patent removes the external lock component entirely from the system. The locking mechanism is extracted from the traditional external key-operated lock and replaced with an internal electronic solenoid-actuated system that is not accessible from outside the door, eliminating the vulnerability to external cutting or manipulation.
Solution Approach 2:
The patent replaces the mechanical key-operated locking system with an electronic control system using a solenoid motor. The manual key lock mechanism is substituted with an electronically actuated solenoid that can be controlled remotely through a microprocessor and user interface, transitioning from purely mechanical operation to electronic control.
2Reliability
If additional locks are added to prevent tenant access when rent is unpaid, then access control is improved, but the tenant can still cut the facility's lock with a bolt cutter
Solution Approach 1:
The patent creates a universal electronic locking system that serves multiple functions: it controls access for paying tenants, prevents access for non-paying tenants, and provides remote monitoring capabilities. The single electronic lock system replaces the need for multiple separate locks, as it can be programmatically controlled to grant or deny access based on tenant status.
Solution Approach 2:
The patent replaces multiple mechanical locks with a single electronic locking system controlled by a microprocessor. The mechanical complexity of installing and managing multiple locks is substituted with electronic control logic that can manage access rights programmatically, reducing physical device complexity while improving access control capabilities.
3Reliability
If a combination or key lock is used, then the door can be locked securely, but the system requires external access and key management
Solution Approach 1:
The patent replaces the mechanical key and combination lock system with an electronic interface system. Instead of physical keys or combination dials, users interact with an electronic user interface that can accept various forms of authentication (keypad entry, cards, or other electronic identifiers), eliminating the need for physical key management and combination memorization.
Solution Approach 2:
The patent enables users to independently manage their own access through the electronic user interface. Tenants can enter their own access codes or use their assigned credentials without requiring facility staff to physically provide or replace keys, allowing them to self-manage their access rights and eliminating key distribution logistics.
4Reliability
If an electronic locking apparatus with remote control is implemented, then security is enhanced and external locks are eliminated, but the device complexity increases
Solution Approach 1:
The patent combines multiple functions into a single integrated electronic locking apparatus. The solenoid motor, microprocessor control, user interface, and locking mechanism are merged into one unified system rather than separate components. This integration reduces overall system complexity by eliminating the need for separate external locks, key management systems, and manual control mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances security by enabling remote access control and eliminating the need for external locks, providing a more reliable access system than traditional combination or key locks, while allowing facility managers to monitor and manage access effectively.
Implementation Method 1
The latch assembly also includes a solenoid associated with a piston which is connected to the release catch and can cause the release catch to pivot positions
Data Source
AI summary
An electronic locking apparatus for a rollup door, including a striker plate and a locking apparatus having a housing; a U-shaped trigger latch pivotably mounted to the housing having a notch and a spring; and a release catch pivotably mounted to the housing, a tab which can engage the notch and a spring. A solenoid is associated with a piston, which is connected to the release catch and can cause the release catch to pivot positions. Also included is a control assembly including a processor, user interface and memory storage device. A user can enter access information into the user interface, which causes the processor to actuate the solenoid, which moves the piston and causes the release catch to pivot. The release catch tab engages or disengages from the trigger latch tab to pivot and release or retain the striker plate.