Electromagnetic Wave Reflective Array for Wireless Sound Detection
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Solution Overview
Problem
Existing sound detection technologies face challenges in collecting sound information in environments where active components are not suitable and in scenarios requiring sound collection at multiple locations, as they often rely on traditional microphone methods that are limited in versatility and range.
Innovation Solution
A method and apparatus that utilize an electromagnetic wave reflective array to convert sound vibrations into electromagnetic wave signals, which are then received and processed to obtain vibration information, allowing for wireless sound collection and direction determination using reflected electromagnetic waves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional microphone methods are used to collect sound information, then the device structure is simple and easy to manufacture, but the device cannot be used in environments where active components are not suitable and cannot collect sound at multiple locations
Solution Approach 1:
The patent replaces traditional mechanical microphone components (diaphragm, transducer) with a passive electromagnetic wave reflective array. Sound vibrations directly modulate the reflection characteristics of electromagnetic waves from different spatial locations, eliminating the need for active mechanical sound-to-electricity conversion components at the measurement location. This substitution enables operation in environments where active components cannot be used while maintaining relatively simple device structure.
Solution Approach 2:
The patent introduces electromagnetic waves as an intermediary medium to transfer sound information from multiple locations. The electromagnetic wave reflective array passively reflects ambient electromagnetic waves, and sound vibrations modulate these reflected waves' characteristics. Remote receiving equipment then captures these modulated waves and reconstructs sound information. This intermediary approach enables multi-location sound collection without placing active components at each measurement point.
2Adaptability or versatility
If traditional microphone methods are used, then the device is easy to operate, but the device lacks versatility in scenarios requiring wireless sound collection and multi-location monitoring
Solution Approach 1:
The electromagnetic wave reflective array serves multiple functions: it passively reflects electromagnetic waves, modulates them according to sound vibrations at different locations, and enables wireless sound information transmission. The system can simultaneously monitor sound at multiple locations using the same passive array structure, providing universal applicability across various scenarios including environments where active components are prohibited and multi-location monitoring requirements.
3Adaptability or versatility
If electromagnetic wave reflective array is used to convert sound vibrations to electromagnetic wave signals, then sound information can be collected in environments where active components are not suitable and at multiple locations, but the device complexity increases
Solution Approach 1:
The electromagnetic wave reflective array is segmented into multiple independent reflective units positioned at different spatial locations. Each unit passively reflects electromagnetic waves and is modulated by local sound vibrations. The receiving equipment segments the received signals according to their spatial origins and reconstructs sound information from each location independently. This segmentation enables multi-location sound collection while keeping each individual reflective unit structurally simple.
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 effective sound information retrieval in scenarios where traditional methods are unsuitable, particularly in environments where active components cannot be used and for collecting sound at multiple locations, by converting sound vibrations into electromagnetic waves for analysis.
Implementation Method 1
the multiple reflective units of the electromagnetic wave reflective array vibrate in response to a sound in an environment
Implementation Method 2
the multiple reflected electromagnetic wave signals are formed by reflecting an electromagnetic wave signal by multiple reflective units of an electromagnetic wave reflective array
Data Source
AI summary
Embodiments of the present application disclose a method and an apparatus for obtaining vibration information and a piece of user equipment. The method comprises: obtaining multiple groups of electromagnetic wave receiving signals corresponding to multiple receiving locations; obtaining, according to transmission channel information between the multiple receiving locations and the multiple reflective units and the multiple groups of electromagnetic wave receiving signals, multiple reflected electromagnetic wave signals respectively corresponding to the multiple reflective units; and obtaining, according to the multiple reflected electromagnetic wave signals, multiple pieces of vibration information respectively corresponding to the multiple reflective units. In technical solutions of the embodiments of the present application, obtaining sound information in an environment by using a wireless electromagnetic wave is especially applicable to some scenarios where an active component is not suitable for use at a sound collecting location and a scenario where sound information at multiple locations needs to be collected in a space.