Alarm Lock with Dual-Mode Trigger for False Alarm Prevention

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Solution Overview

Problem

Existing locks with integrated alarms often activate unintentionally when the locking member is in the locked position, posing a problem during transportation or in situations where the alarm's operation is undesirable.

Innovation Solution

A lock with a dual-mode alarm trigger that allows the locking member to be in the locked position while the alarm is intentionally rendered inoperative, utilizing a control circuit and sensor systems to manage the alarm's activation and deactivation based on specific conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the alarm is activated when the locking member is locked to the body, then security monitoring is improved, but false alarm activation occurs during transportation

Engineering Contradiction:
Improvealarm activation reliabilityVSAvoidfalse alarm during transportation
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The alarm trigger system transitions from a static single-mode design to a dynamic dual-mode design, allowing the alarm trigger to operate differently based on the operational context. The system can switch between first mode (alarm activation) and second mode (alarm deactivation) depending on whether the lock is in use or being transported, thereby adapting to different operational requirements and preventing false alarms during transportation while maintaining security monitoring during actual use.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The alarm trigger's operational parameters are changed by introducing a second mode of operation. In the first mode, the trigger activates the alarm when the locking member is locked; in the second mode, the trigger renders the alarm inoperative even when locked. This parameter change allows the system to differentiate between legitimate security events and transportation conditions, resolving the contradiction between security monitoring and false alarm prevention.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If the alarm trigger operates automatically when the locking member is locked, then security alert function is improved, but operational flexibility is reduced

Engineering Contradiction:
Improveautomatic alarm functionVSAvoidalarm operation control flexibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The alarm trigger system transitions from a static single-mode design to a dynamic dual-mode design, allowing the alarm trigger to operate differently based on the operational context. The system can switch between first mode (alarm activation) and second mode (alarm deactivation) depending on whether the lock is in use or being transported, thereby adapting to different operational requirements and preventing false alarms during transportation while maintaining security monitoring during actual use.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The alarm trigger is designed with multi-functionality, serving dual purposes: in the first mode it acts as a security alarm activator, and in the second mode it acts as an alarm suppressor during transportation. This universal design allows a single component to perform multiple functions, enhancing operational flexibility without requiring separate systems for different operational scenarios.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS8680996B2Alarm lock
Publication Date: 2014.03.25 XENA IP HLDG
  • US8680996B2 patent drawing
  • US8680996B2 patent drawing
  • US8680996B2 patent drawing

AI summary

A lock has a body holding a locking member that can be locked to or released from the body by, for example, operation of a key. The lock includes an alarm that is triggered by the locking of the locking member. If, however, the lock is unlocked and relocked within a predetermined time interval, the alarm is disarmed. In this way, the lock can remain locked but with the alarm disarmed. The signals that cause the alarm to arm and disarm can be produced in any convenient way.