Smart Device Control via Ambient Sound Identification

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Solution Overview

Problem

Current smart device control systems require accurate description of device attributes by users for voice commands, leading to potential inaccuracies and failures in automatic control due to misrecognition.

Innovation Solution

A control method and system that acquires an adjustment instruction from sound information and determines a target device based on ambient sound characteristics, allowing for automatic control without explicit user description.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If users describe device attributes explicitly in voice commands, then the control system can identify target devices, but the complexity and potential for error in user input increases

Engineering Contradiction:
Improvedevice identification accuracyVSAvoidvoice command complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system automatically identifies the target device by analyzing ambient sound information without requiring users to manually describe device attributes. The control device autonomously determines which device should be controlled by comparing the sound characteristics of multiple devices with the ambient sound, thereby eliminating the need for complex user descriptions while maintaining accurate device identification.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the manual description mechanism (users verbally describing device attributes) with an acoustic detection mechanism (system automatically analyzing ambient sound characteristics). This substitution uses sound wave analysis to identify devices, replacing the error-prone human description process with automated acoustic fingerprinting and pattern recognition.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If the system requires accurate device attribute descriptions, then control precision can be maintained, but the ease of operation decreases

Engineering Contradiction:
Improvecontrol accuracyVSAvoidvoice command simplicity
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The control device automatically performs device identification by analyzing ambient sound information, eliminating the burden from users to accurately describe device attributes. The system self-services the identification task by autonomously comparing sound characteristics and determining the target device, thereby simplifying user interaction while preserving control accuracy.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system pre-stores sound characteristic information for multiple devices before actual control operations. By having device sound profiles ready in advance, the system can quickly and accurately identify the target device during operation without requiring users to provide detailed descriptions, thus maintaining both accuracy and ease of use.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If multiple smart devices are controlled, then the system's versatility increases, but the difficulty of detecting and measuring the target device increases

Engineering Contradiction:
Improvedevice compatibilityVSAvoidtarget device identification
Core Design Contradiction:
Adaptability or versatilityVSDifficulty of detecting and measuring

Solution Approach 1:

The patent segments the identification process into distinct steps: first acquiring sound characteristic information from multiple devices, then analyzing ambient sound to determine which device produced the sound, and finally matching the ambient sound characteristics with stored device profiles. This segmentation of the identification process enables the system to handle multiple devices systematically, reducing the complexity of target device detection while supporting versatile device control.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system uses ambient sound information as an intermediary to identify the target device. Instead of directly comparing user input with device attributes, the system uses the ambient sound produced by devices as a mediator to bridge the user and the target device. This intermediary approach simplifies the detection process by providing a clear, measurable signal (sound characteristics) that can be automatically analyzed and matched.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS11301208B2Control method, control device, and control system
Publication Date: 2022.04.12 LENOVO (BEIJING) LTD
  • US11301208B2 patent drawing
  • US11301208B2 patent drawing
  • US11301208B2 patent drawing

AI summary

The present disclosure discloses a control method, including: acquiring an adjustment instruction, acquiring a target device, and processing the adjustment instruction such that the target device responds to the adjustment instruction. The adjustment instruction is determined according to a first sound information and the target device is determined based on information that characterizes an ambient sound. A control device and a control system are also provided.