Universal Remote Control via Wi-Fi to RF Signal Conversion

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Solution Overview

Problem

Conventional methods for remotely controlling electrical appliances require multiple remote controls, which are cumbersome to manage, and do not leverage Wi-Fi technology for enhanced convenience.

Innovation Solution

A method that converts Wi-Fi signals into RF signals to control multiple electrical appliances by using a repeater that communicates with each appliance through RF, allowing a single remote control device to manage multiple appliances via unique ID codes and operating commands.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a remote control is paired with each electrical appliance through RF control module, then each appliance can be controlled wirelessly, but the number of remote controls increases with the number of appliances making management burdensome

Engineering Contradiction:
Improvewireless control capabilityVSAvoidnumber of remote controls
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent creates a universal remote control system where a single remote control device can control multiple different electrical appliances through Wi-Fi network communication. The remote control device sends control commands via Wi-Fi signals to a repeater, which then distributes them to the target appliances, eliminating the need for multiple appliance-specific remote controls while maintaining wireless control functionality for each device.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent introduces a repeater as an intermediary device that receives control commands from the remote control device via Wi-Fi signals and converts them into appropriate RF signals or network messages to control the target electrical appliances. This mediator enables communication between the universal remote control and various appliances without requiring direct pairing between each remote and appliance.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If conventional RF remote control is used for each appliance, then wireless control is achieved, but Wi-Fi technology cannot be leveraged for enhanced convenience and network-based control

Engineering Contradiction:
Improvecontrol system flexibilityVSAvoidoperational convenience
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent changes the communication parameter from traditional RF remote control signals to Wi-Fi network signals. The remote control device communicates with appliances through Wi-Fi protocols and network messages instead of conventional RF infrared or radio signals, enabling integration with existing Wi-Fi networks and smart home ecosystems, thereby enhancing operational convenience and adaptability.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If multiple remote controls are used to control different appliances, then each appliance can be controlled independently, but the complexity of managing multiple remote controls increases

Engineering Contradiction:
Improveindependent appliance controlVSAvoidremote control management
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent merges the functionality of multiple appliance-specific remote controls into a single universal remote control device. This single device can control multiple different electrical appliances through Wi-Fi network communication, combining the independent control capability of multiple remotes into one unified interface, thereby reducing management complexity while maintaining independent control of each appliance.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS9418541B2Method of remotely controlling electrical appliances
Publication Date: 2016.08.16 GRAND MATE
  • US9418541B2 patent drawing
  • US9418541B2 patent drawing
  • US9418541B2 patent drawing

AI summary

A method of remotely controlling electrical appliances includes the steps of: inputting ID codes of a plurality of electrical appliances into a remote control device; selecting one of the electrical appliances and a corresponding operating command on the remote control device; generating a Wi-Fi signal to carry the first packet; transmitting the Wi-Fi signal to a repeater; converting the first packet carried thereby into a second packet; generating a RF signal to carry the second packet; transmitting the RF signal to the electrical appliances; comparing a ID code kept in a second ID code field of the second packet to the ID codes of the electrical appliances. Finally, the electrical appliance which has the matched ID code performs an operation according to an operating command in a second data field of the second packet.