Appliance Port Activity Detection for Pay-Per-Use Tampering

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Solution Overview

Problem

Commercial appliances with pay-per-use systems are vulnerable to tampering, as users may attempt to access and use features without authorization, leading to potential financial losses and maintenance issues.

Innovation Solution

Incorporating a wireless communication module and external communication port that connects to a remote server, allowing for real-time monitoring and assessment of port activity, enabling the adjustment of operating parameters to prevent unauthorized use and financial transactions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If pay-per-use systems are implemented in commercial appliances, then revenue generation capability is improved, but vulnerability to tampering increases

Engineering Contradiction:
Improverevenue generation capabilityVSAvoidvulnerability to tampering
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary actions by detecting port activity before unauthorized use can occur, transmitting notifications to remote servers in advance, and assessing the activity beforehand to prevent financial loss. The controller monitors communication ports for tampering attempts before they can exploit the pay-per-use system.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by continuously monitoring port activity, transmitting notifications to remote servers, receiving assessments of the activity, and adjusting operating parameters based on this feedback loop. This closed-loop system enables real-time detection and response to tampering attempts.

Inventive Principle:
Principle #23Feedback

2Reliability

If monitoring and control systems are added to prevent tampering, then security against unauthorized use is improved, but device complexity increases

Engineering Contradiction:
Improvesecurity against unauthorized useVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system uses an intermediary approach by introducing a wireless communication module and remote server as mediators between the appliance and the user/environment. The controller acts as an intermediary that monitors port activity and communicates with remote servers, distributing the security functionality across multiple components rather than concentrating complexity in one place.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11790121B2System and method for detecting appliance tampering
Publication Date: 2023.10.17 HAIER US APPLIANCE SOLUTIONS INC
  • US11790121B2 patent drawing
  • US11790121B2 patent drawing
  • US11790121B2 patent drawing

AI summary

An appliance includes an external communication port, such as an RJ45 port, and a wireless communication module in wireless communication with a remote server through an external network. A controller is configured to detect port activity at the external communication port, e.g., by detecting a plug-in or data transfer, transmit a notification of the port activity to the remote server using the wireless communication module, receive an activity assessment, e.g., such as an activity approval or disapproval, from the remote server, and adjust at least one operating parameter of the appliance in response to the activity assessment.