Safe Lock State Detection Using Latch-Actuated Sensors
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Solution Overview
Problem
Existing safes and locking systems lack an effective method to accurately detect and confirm the locked or unlocked state, which can lead to security vulnerabilities and user confusion.
Innovation Solution
A lock engagement detection system that uses sensors and solenoids to determine the position of live action deadbolts and a latch, sending signals to a control unit to indicate whether the safe is locked or unlocked, and includes a user interface for access credentials and manual override options.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lock engagement detection system is implemented to accurately detect the locked or unlocked state, then security and reliability are improved, but device complexity increases due to additional sensors and control units
Solution Approach 1:
The system utilizes the existing latch mechanism's own movement to actuate the sensor. As the latch extends or retracts during normal locking operation, it directly triggers the sensor without requiring separate actuation mechanisms. This self-service approach allows the system to detect lock state using existing mechanical movements, avoiding additional complexity while improving reliability
Solution Approach 2:
A sensor is introduced as an intermediary element that translates the mechanical position of the latch into detectable signals. The sensor acts as a mediator between the mechanical locking mechanism and the control system, enabling accurate state detection without requiring complex direct measurement methods. This intermediary approach simplifies the overall system by providing a dedicated, simple detection point
2Measurement precision
If the lock engagement sensor is activated after the live action deadbolts and latch are engaged, then measurement precision of the locked state is improved, but loss of time occurs during the detection sequence
Solution Approach 1:
The sensor is pre-positioned and pre-configured to detect the latch position at the moment of engagement. Rather than requiring a separate detection sequence after locking, the system is prepared in advance to immediately register the locked state when the latch reaches its engaged position. This preliminary preparation eliminates time loss while maintaining precision
Solution Approach 2:
The detection process occurs continuously during the locking action itself, not as a separate subsequent step. As the latch moves into the engaged position, the sensor continuously monitors and immediately detects the state change. This continuous detection during the useful action of locking eliminates idle time while ensuring accurate measurement of the locked state
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
Ensures accurate detection of the safe's state, enhancing security by preventing unauthorized access and providing clear status indicators, while allowing secure and convenient operation.
Implementation Method 1
Upon receipt of the appropriate access credentials, a solenoid may disengage (e.g. retract) the latch thereby allowing a user to move the handle and unlock the safe.
Data Source
AI summary
Systems and methods to indicate whether a safe is locked or unlocked.