Electrical Apparatus Control for Variable Remote Lockout Timing

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Solution Overview

Problem

Existing remote control systems for electrical apparatuses, such as air conditioners, often inconvenience users by prohibiting remote control for a fixed time interval after manual operation, leading to safety concerns and user discomfort.

Innovation Solution

A control system that allows remote control while maintaining safety by setting a time interval for prohibiting remote operation based on the contents of the command signal, allowing the electrical apparatus to discard command signals during this interval, even if received from an operation terminal outside the predetermined transmission area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a fixed time interval for prohibiting remote operation is imposed after manual switching, then safety is maintained, but user convenience deteriorates

Engineering Contradiction:
ImprovesafetyVSAvoiduser convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent applies dynamics by making the prohibition time interval variable rather than fixed. The control device determines the prohibition duration based on the specific operation content executed by the remote controller, allowing the system to adapt the safety interval dynamically to match the operational context, thereby improving user convenience while maintaining safety.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of prohibition time from a constant fixed value to a variable value determined by operation contents. By adjusting the prohibition interval parameter according to different operation types and scenarios, the system resolves the contradiction between safety requirements and user convenience.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If remote control is forbidden across-the-board for a fixed time interval, then unintended control changes are prevented, but operational flexibility is reduced

Engineering Contradiction:
Improvecontrol accuracyVSAvoidoperational flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent applies local quality by implementing differentiated prohibition strategies for different operation contents. Instead of a uniform across-the-board prohibition, the system selectively applies prohibition intervals based on specific operation types, allowing operational flexibility in scenarios where it is safe while maintaining control accuracy where needed.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system dynamically adjusts the prohibition interval based on the specific operation content, enabling the control mechanism to adapt its behavior to different operational contexts. This dynamic approach maintains control accuracy while preserving operational flexibility.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS10269237B2Control system, control method, electrical apparatus, control device, and program
Publication Date: 2019.04.23 MITSUBISHI ELECTRIC CORP
  • US10269237B2 patent drawing
  • US10269237B2 patent drawing
  • US10269237B2 patent drawing

AI summary

Upon receiving a command signal transmitted from a remote controller (100), based on contents of the received command signal, a setter of an electrical apparatus sets a time interval for prohibition of operation from an operation terminal. During the time interval set by the setter, an operation controller of the electrical apparatus does not control based on the received command signal, even if a command signal transmitted from the operation terminal is received via a HEMS controller.