Home Appliance Controller Priority Assignment for Simultaneous Signals

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Solution Overview

Problem

Home appliances lack the ability to effectively prioritize control rights when multiple control requests are made, leading to user convenience and operational stability issues, especially in scenarios where remote and local control signals are simultaneously received.

Innovation Solution

A home appliance system that includes a communication unit to receive remote control signals, an input unit for local user inputs, and a controller to assign priority based on the timing of local key inputs relative to remote control signal reception, distinguishing between remotely controllable and uncontrollable items depending on the mobile terminal's network location.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the home appliance accepts both remote control signals and local key inputs, then user convenience is improved, but control conflict and operational instability occur when both signals are received simultaneously

Engineering Contradiction:
Improveuser convenienceVSAvoidoperational stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The controller preemptively resolves potential control conflicts by establishing priority rules before simultaneous signals are received. When a remote control signal is detected, the system preliminarily determines whether a local key input will occur within a predetermined time window, and pre-establishes the priority hierarchy to prevent operational conflicts.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The system performs preliminary timing analysis by measuring the time difference between remote control signal reception and local key input. This preliminary action allows the controller to determine in advance which signal should take priority, avoiding the need for complex real-time decision-making when conflicts occur.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If remote control rights are provided to mobile terminals outside the internal network, then accessibility is improved, but security and control stability deteriorate

Engineering Contradiction:
ImproveaccessibilityVSAvoidcontrol stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system applies different control rights and functionalities based on the mobile terminal's network location. Terminals inside the internal network receive full control rights, while terminals outside the network receive limited or restricted control rights, creating localized quality differences in access permissions.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The control rights are dynamically adjusted based on the terminal's network status. The system continuously monitors whether a terminal is connected to the internal network and dynamically grants or restricts control rights accordingly, allowing flexible adaptation to different usage scenarios.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9307069B2Home appliance, mobile terminal, and operation method thereof
Publication Date: 2016.04.05 LG ELECTRONICS INC
  • US9307069B2 patent drawing
  • US9307069B2 patent drawing
  • US9307069B2 patent drawing

AI summary

A home appliance, a mobile terminal, and an operation method thereof are disclosed. The home appliance includes a communication unit to receive a remote control signal from a mobile terminal, an input unit to receive a user input signal from a local key, and a controller to assign priority to the user input signal according to the input of the local key and to control an operation of the home appliance corresponding to the user input signal when a time difference between input of the local key and reception of the remote control signal is within a predetermined time. When a plurality of control rights is requested, the home appliance may assign priority to any one of the requested control rights.