Shape Memory Material Lock for Tamper-Resistant Tracking
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Solution Overview
Problem
Current tracking devices and container caps lack effective tamper-proof mechanisms, particularly for securing individuals and controlling access to medicine containers, as they can be easily released or opened without authorization.
Innovation Solution
A tracking device and tamper-resistant container cap utilizing a shape memory material component integrated with a locking mechanism, which changes length or shape in response to electrical current, allowing secure latching and unlocking based on predetermined criteria, and a two-way communication device for real-time monitoring and alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional locking mechanism is used in tracking devices and container caps, then the device can be manufactured with simple structure, but the security against unauthorized release or opening is insufficient
Solution Approach 1:
The patent applies shape memory materials that change their physical state (shape/length) in response to temperature changes. The locking mechanism utilizes this parameter change to transition between locked and unlocked states, providing secure locking without complex mechanical structures. The shape memory component expands or contracts based on temperature to engage or disengage the locking latch.
Solution Approach 2:
The invention employs phase transition properties of shape memory materials, where the material undergoes a phase change from austenite to martensite structure in response to temperature changes. This phase transition enables the locking mechanism to automatically secure or release based on temperature conditions, enhancing security while maintaining structural simplicity.
2Reliability
If a shape memory material component is added to the locking mechanism, then the security and tamper-proof capability are improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent replaces traditional mechanical locking mechanisms with a shape memory material-based system. Instead of using complex springs, latches, and actuators, the invention uses the inherent shape memory properties of the material to provide locking and unlocking functions, simplifying the overall device structure while enhancing tamper-proof capability.
Solution Approach 2:
The shape memory locking mechanism is designed to be self-regulating, where the material automatically responds to temperature changes to engage or disengage the lock without requiring external control systems. This self-service characteristic reduces the need for additional control mechanisms and simplifies manufacturing.
3Ease of operation
If electrical current is supplied to heat the shape memory material, then the locking mechanism can be unlocked, but energy consumption increases
Solution Approach 1:
The patent implements periodic or intermittent heating cycles to activate the shape memory material for unlocking, rather than continuous heating. The electrical circuit is configured to supply power in controlled periods, allowing the material to undergo phase transition for unlocking while minimizing overall energy consumption during the locked state.
Solution Approach 2:
The system utilizes controlled temperature parameter changes through selective electrical heating to activate the shape memory material only when unlocking is required. The electrical circuit monitors and controls power supply to the shape memory component, ensuring energy is consumed only during necessary state transitions rather than continuous operation.
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
The solution provides enhanced security by preventing unauthorized release or opening, while enabling secure tracking and monitoring through real-time communication, ensuring the safety of individuals and controlled access to containers.
Implementation Method 1
a shape memory material component connected to the latch; an electrical circuit for controlling the power source to heat the shape memory material component to cause the shape memory material component to change from a first length and/or first shape to a second length and/or second shape during supply of power
Implementation Method 2
an electrical circuit for controlling the power source to heat the shape memory material component to cause the shape memory material component to change from a first length and/or first shape to a second length and/or second shape during supply of power
Data Source
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AI summary
Tracking device embodiments, comprising: portable housing with a locking mechanism; band latched about a wrist; tampering detection device to detect tampering with the band, comprising: power source; latch configured to latch one end of the band within the housing; a shape memory material component connected to the latch; an electrical circuit for controlling the power source to heat the shape memory material component to cause the shape memory material component to change from a first length/shape to a second length/shape during supply of power to perform a locking function; a timer; two-way network communication device; a tracking element; tampering signal generation circuit. In embodiments, a tamper resistant container cap, comprises: cap housing releasably lockable to an open end of a container and a locking mechanism using a shape memory material component.