Continuous Sound Signal Processing for Noise-Resistant Load Control

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Solution Overview

Problem

Existing sound-controlled electronic lighting devices can only recognize simple sound signals and fail to identify required signals in noisy environments, limiting their ability to provide long-term sound control.

Innovation Solution

A sound control device comprising a sound control component, a sound control processing component, a CPU processing device, and a load, which collects and processes continuous sound control signals to control the load effectively, using amplifiers and low-pass filters to focus on intermediate-frequency signals and ignore high-frequency noise.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If sound control devices use simple sound signal recognition, then the device structure is simple, but the device cannot identify required sound signals in noisy environments

Engineering Contradiction:

Improvesound signal recognition accuracyVSAvoidsignal processing complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the sound signal processing into multiple frequency bands using band-pass filters, allowing the system to analyze different frequency components separately. This enables selective enhancement of relevant sound signals while filtering out noise in other frequency ranges, thereby improving recognition accuracy without requiring overly complex processing of the entire signal spectrum.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent changes the frequency response parameters of the system by using multiple band-pass filters with different center frequencies and bandwidths. This allows the system to adaptively emphasize different frequency ranges based on the characteristics of the desired sound signals, improving recognition accuracy in noisy environments by tuning the frequency parameters to match the target signals.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If sound control devices process all frequency signals equally, then the processing is simple, but the device cannot distinguish between useful sound signals and noise

Engineering Contradiction:

Improvesound signal identification accuracyVSAvoidfrequency selection complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies local quality by assigning different processing characteristics to different frequency bands. Each band-pass filter is tuned to specific frequency ranges where useful sound signals are expected, giving those frequency components enhanced processing while other frequency ranges are attenuated. This localized frequency-domain processing improves signal identification by making the system selectively sensitive to relevant frequency regions.

Inventive Principle:

Principle #3Local quality

3Duration of action of moving object

If sound control devices respond to all sound signals, then the response is comprehensive, but the device cannot provide long-term stable sound control

Engineering Contradiction:

Improvesound control durationVSAvoidsound control stability

Core Design Contradiction:

Duration of action of moving objectVSReliability

Solution Approach 1:

The patent performs preliminary frequency selection and signal enhancement through band-pass filtering before the main sound control processing. By pre-processing the sound signals to extract and enhance relevant frequency components while suppressing noise, the system establishes a more reliable input for subsequent control decisions, enabling more stable and accurate long-term sound control.

Inventive Principle:

Principle #10Preliminary action

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 long-term sound control of loads, such as LED lamps, by accurately detecting sound intensity and rhythm, allowing for dynamic lighting effects based on music or voice signals, while being insensitive to low-frequency noise.

Implementation Method 1

the sound control component collects a sound control signal and transmits the sound control signal to the sound control processing component

Methodology Applied

Scientific EffectAcoustic energy conversion:

Implementation Method 2

the sound control processing component comprises an amplifier and a low pass filter

Methodology Applied

Scientific EffectSignal amplification:

Implementation Method 3

the sound control processing component classifies the sound control signal into a high-frequency signal and a low-frequency signal and attenuates the high-frequency signal

Methodology Applied

Scientific EffectFrequency filtering: Filter (electronic)

Data Source

PatentUS10911012B2Sound control device for controlling load based on continuous sound control signal

Publication Date: 2021.02.02 XIE HUARONG

AI summary

The present disclosure discloses a sound control device for controlling load based on continuous sound control signal, which comprises a sound control component, a sound control processing component, a CPU processing device, an execution port component and a load, wherein the sound control component is connected to the sound control processing component; the sound control component collects a sound control signal and transmits the sound control signal to the sound control processing component; the sound control processing component is connected to the CPU processing device; and the CPU processing device is respectively connected with the execution port component and the load.