Breakaway Cable with Coiled Spring for POS Terminal
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Solution Overview
Problem
Existing handheld POS terminals face challenges in secure and efficient transaction processing, particularly in drive-through settings, due to security risks and hardware durability issues when requiring PIN entry or contactless payment handling, leading to potential damage or loss during use.
Innovation Solution
A handheld POS terminal connected via a wired cable system with a plug-in connector that separates safely if pulled, featuring a coiled spring section for shock absorption and an alarm/GPS tracker for loss prevention, ensuring secure and durable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a handheld POS terminal is used in drive-through transactions, then transaction efficiency is improved, but the terminal is exposed to damage from weather and vandalism
Solution Approach 1:
The cable is divided into two separate sections that can be disconnected, allowing the terminal to be detached from the base unit when not in use or during drive-through transactions, thereby protecting the terminal from weather and vandalism while maintaining operational efficiency
Solution Approach 2:
A breakaway cable with a connector acts as an intermediary between the terminal and base unit, enabling the terminal to be safely detached and reattached while preventing damage from excessive force or environmental factors
2Reliability
If the cable pull-out force is increased to prevent unauthorized removal, then security is improved, but the cable connections may be damaged
Solution Approach 1:
The cable connector is designed with a specific pull-out force parameter that falls within an optimal range - strong enough to prevent casual unauthorized removal but weak enough to avoid damaging the cable connections, achieving security without compromising durability
3Strength
If the cable pull-out force is decreased to prevent damage, then cable durability is improved, but the terminal may be accidentally separated
Solution Approach 1:
The pull-out force is optimized to a specific range that balances accidental separation risk with connection stability, ensuring the terminal remains securely attached during normal use while preventing damage from excessive force
4Reliability
If a rigid cable is used to maintain connection stability, then connection reliability is improved, but shock absorption capability is reduced
Solution Approach 1:
A coiled spring section is incorporated into the cable to provide shock absorption capability, cushioning the terminal against drops and impacts while maintaining connection stability through the spring's elastic properties
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 enables secure, efficient, and durable transaction processing by preventing damage from drops and unauthorized removal, while ensuring customer security and reducing hardware exposure to weather and vandalism.
Implementation Method 1
The illustrative cable also includes a coiled section, which acts as a spring. If the POS terminal is dropped, the coiled section brings the POS terminal gently to a stop before it hits the ground.
Data Source
AI summary
A handheld POS terminal is provided, which is wired to a secure base unit by a cable consisting of two pieces that are joined together by a plug-in connector. The plug-in connector has a pull-out force necessary to separate the connector that is greater than the weight of the POS terminal but less than the force necessary to damage the cable connections at the POS terminal or at the base unit. The cable may also include a coiled section, which acts as a spring, so that if the POS terminal is dropped, the coiled section brings the POS terminal gently to a stop before it hits the ground. If a customer drives away with the POS terminal still in the car, the cable will separate at the plug-in connector, preventing damage to the POS terminal.