Hybrid IR RF Remote Control Pairing for Display Devices
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Solution Overview
Problem
Complex remote control devices for image display devices with multiple functions lead to user inconvenience due to the need for various commands, and existing pairing methods are limited by distance and communication standards, making seamless pairing and operation challenging.
Innovation Solution
An image display device and remote control system that utilize both Infrared (IR) and Radio Frequency (RF) communication standards for pairing, allowing the remote control to transmit signals based on the highest reception sensitivity and least noise, with a 3D remote controller that can switch between IR and RF modes for efficient command input and pairing, and a GUI for user-guided pairing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a remote control device uses multiple communication standards (IR and RF) to support diverse functions, then the adaptability and versatility of the remote control improve, but the device complexity increases
Solution Approach 1:
The remote control device is designed to support both IR and RF communication standards, enabling it to control multiple types of electronic devices (TVs, set-top boxes, audio equipment) using a single universal remote. This multi-functionality approach allows the remote to adapt to different communication protocols and device types without requiring separate specialized remotes for each device category.
Solution Approach 2:
The remote control device dynamically switches between IR and RF communication modes based on the target device type and pairing status. The system can transition from IR-based initial pairing to RF-based continuous operation, optimizing performance and reducing complexity by using the appropriate communication standard for each operational phase.
2Ease of operation
If the remote control device pairs automatically with the image display device, then the ease of operation improves, but the reliability of pairing may deteriorate due to distance and noise factors
Solution Approach 1:
The system performs preliminary pairing actions using IR communication before establishing RF communication. The IR-based preliminary pairing occurs when the remote is held close to the device, ensuring reliable initial connection. After successful IR pairing, the system then establishes RF communication for continued operation, separating the pairing and operation phases to ensure reliability at each stage.
Solution Approach 2:
IR communication serves as an intermediary mechanism during the pairing process. The system uses IR signals as a reliable mediator to establish initial pairing when the remote is close to the device, then transitions to RF communication for ongoing operation. This intermediary approach ensures reliable pairing while enabling subsequent wireless operation over greater distances.
3Ease of operation
If the remote control uses RF communication for all operations, then the ease of operation and distance capability improve, but the loss of information increases due to noise and interference
Solution Approach 1:
The system periodically switches between IR and RF communication modes based on operational requirements. IR communication is used periodically for initial pairing and confirmation, while RF communication is used for continuous operation. This periodic alternation allows the system to leverage the noise-resistant properties of IR for critical pairing operations while maintaining the convenience of RF for regular use.
Solution Approach 2:
The system uses IR communication as a cushioning mechanism during the pairing process to protect against RF noise and interference. By establishing initial pairing through the more noise-resistant IR channel when the remote is close to the device, the system creates a reliable foundation before transitioning to RF communication, cushioning against potential information loss during the pairing phase.
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
Enables efficient and user-friendly pairing of the remote control with the image display device, allowing for seamless operation across different frequency channels and communication standards, reducing user complexity and improving pairing reliability.
Implementation Method 1
an infrared module for receiving an infrared signal from the remote control device
Implementation Method 2
a radio frequency module for transmitting and receiving a radio frequency signal
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
An image display device and method may be provided for pairing with a remote control device for transmitting a command to the image display device. Upon power-on, the image display device may be paired with the remote control device. When the image display device is power-on, a guide screen may be displayed to indicate how to pair the image display device with the remote control device. A user may easily pair the remote control device with the image display device through the pairing guide screen.