Retrofit Power Failure Indicator for Magnetic Locks
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Solution Overview
Problem
Existing electromagnetic locking systems become inoperable and unlocked during power failures, requiring complex and costly microprocessor-based systems with additional wiring for power monitoring, which is inefficient and not easily retrofittable.
Innovation Solution
A power monitoring device that can be retrofitted onto existing electromagnetic locking systems, using a DPDT relay and rechargeable capacitor to detect power failures and activate indicators such as LEDs and buzzers, with the option to trigger alarms or cameras, and automatically reset upon power restoration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If microprocessor-based systems are used for power monitoring, then power failure detection capability is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces microprocessor-based electronic systems with an electro-mechanical relay system. The relay uses electromagnetic actuation to detect power failures and trigger indicators, eliminating the need for complex microprocessor circuitry while maintaining reliable power failure detection capability.
Solution Approach 2:
The patent employs simple, inexpensive electro-mechanical components (relays, LEDs, buzzers) instead of expensive microprocessors. These components are cost-effective and can be easily replaced if needed, reducing overall system cost while achieving the same power monitoring function.
2Reliability
If microprocessor-based systems with separate wiring are used, then power monitoring functionality is improved, but ease of installation deteriorates
Solution Approach 1:
The power monitoring device is designed to be universally compatible with existing electromagnetic locking systems. It can be retrofitted without requiring separate wiring harnesses or modifications to the lock mechanism, as it utilizes the existing power circuitry to detect failures and trigger indicators.
Solution Approach 2:
The patent introduces a standalone power monitoring device that acts as an intermediary between the existing locking system and the power source. This device monitors power conditions and triggers indicators without requiring direct integration into the lock mechanism or separate wiring, simplifying installation.
3Ease of manufacture
If existing power mains are used to power the monitoring device, then ease of installation is improved, but device complexity increases
Solution Approach 1:
The monitoring device is designed to draw power from the existing power mains that already supply the electromagnetic locking system. This eliminates the need for separate power wiring while the device provides multiple functions: power failure detection, indicator control, and alarm triggering.
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
Enables efficient power failure detection and indication in electromagnetic locking systems, allowing for activation of signaling devices and automatic reset, reducing the need for extensive system overhauls or separate power sources, while being cost-effective and easily integratable.
Implementation Method 1
using a DPDT relay and rechargeable capacitor to detect power failures
Implementation Method 2
using a DPDT relay and rechargeable capacitor to detect power failures
Implementation Method 3
activate indicators such as LEDs and buzzers
Implementation Method 4
activate indicators such as LEDs and buzzers
Data Source
AI summary
An electrical lock monitoring device which can be retrofitted onto an existing electrical lock control system. The device can be powered by the existing power mains for the electrical lock control system. In the event of a power failure, an indicator is activated to advise users of a power failure. The device can be electrically connected to trigger an alarm, camera, siren, or other devices. Once the power has been restored, the device is automatically reset.