Infrared Control System with Sound Feedback for Automatic Device Pairing
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Solution Overview
Problem
Conventional infrared remote controls are unidirectional, requiring manual scanning and user verification of control codes, lacking automatic feedback mechanisms to determine if a target device responds to the transmitted codes.
Innovation Solution
An infrared remote control system incorporating a sound sensor and processing unit that transmits an initial infrared control code and monitors environment sounds to determine if the target device responds, automatically recording the corresponding control code set and device relationship.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual scanning and user verification method is used, then the infrared remote control can establish control code relationships, but the operation process is complex and time-consuming
Solution Approach 1:
The patent introduces automatic feedback mechanisms through sound sensors and infrared receivers that detect whether the target device responds to transmitted control codes. The system automatically adjusts and records the correct control code based on the feedback signal, eliminating the need for manual verification and significantly reducing the time required to establish control code relationships.
Solution Approach 2:
The infrared remote control system performs self-learning by automatically scanning control codes and verifying device responses without user intervention. The processing unit autonomously records the relationship between control codes and target devices, making the system self-sufficient in establishing control relationships.
2Extent of automation
If automatic feedback mechanism is introduced, then the determination of target device response becomes automated, but the device complexity increases
Solution Approach 1:
The patent makes existing components perform multiple functions. The sound sensor not only detects ambient sound but also specifically detects the response sound of the target device. The infrared receiver not only receives control codes but also verifies device responses. This multi-functionality reduces the need for additional dedicated components, thereby limiting the increase in device complexity.
Solution Approach 2:
The patent uses sound as an intermediary feedback mechanism to indicate whether the target device has responded to the infrared control code. Instead of requiring direct electronic communication between the remote control and target device, the sound feedback serves as a simple mediator that confirms device response, simplifying the automation process.
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 automatic determination of target device responses to infrared control codes, streamlining the process of establishing control code relationships and enhancing user interaction with devices.
Implementation Method 1
the processing unit monitors an environment sound via the sound sensor and determines whether the target device responds to the first infrared control code
Data Source
AI summary
An infrared control system and an operation method thereof are provided. The infrared control system includes a sound sensor, an infrared transmitter and a processing unit. In an initialization period, the processing unit controls the infrared transmitter to transmit a first infrared control code of a first control code set to a target device, and monitors an environment sound via the sound sensor to determine whether the target device responds to the first infrared control code. If the processing unit determines that the target device responds to the first infrared control code according to environment sound, the processing unit records a relationship between the first control code set and the target device.