Acoustic Data Transmission for IoT Spatial Security
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Solution Overview
Problem
Current wireless communication systems face challenges in differentiating between devices based on space and distance, particularly in IoT environments, where secure and efficient data transmission and reception are necessary, especially with the growing use of Bluetooth Low Energy (BLE) mode devices.
Innovation Solution
The proposed solution involves using sound signals to transmit and receive data, where sound packets include sound symbols and sub-symbols, allowing for differentiated reception capabilities based on space and distance, with devices capable of mapping multiple sound symbol types to preset data values, enhancing security and transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sound signals are used for data transmission in wireless communication systems, then security and transmission efficiency are enhanced, but device complexity increases due to multiple sound symbol types and mapping requirements
Solution Approach 1:
The data transmission is segmented into multiple sound symbols, where each sound symbol represents a specific data value. The transmitting device divides the original data into segments and maps each segment to a corresponding sound symbol type, enabling secure transmission through acoustic signals while maintaining manageable complexity through structured segmentation
Solution Approach 2:
The system changes the parameter of sound symbol types to encode different data values. By varying the sound symbol type (e.g., different frequencies, durations, or patterns), the system can represent multiple data values, enhancing security and transmission efficiency without requiring completely different transmission mechanisms
2Reliability
If differentiated reception capabilities are implemented based on space and distance, then communication reliability improves, but measurement precision requirements increase for determining device location
Solution Approach 1:
The reception capability is made dynamic by adjusting it based on the measured distance between transmitting and receiving devices. The system calculates the distance using sound signal propagation time and dynamically configures which receiving devices can access the transmitted data, ensuring that only devices within authorized spatial ranges can receive communications
Solution Approach 2:
The sound signal acts as an intermediary that carries both data and spatial information. By analyzing the sound signal characteristics (such as arrival time and intensity), the system can determine device location and use this information to control data reception rights, reducing the need for separate high-precision location measurement systems
Data Source
AI summary
Disclosed is a method by which a transmission device transmits data on the basis of a sound signal in a wireless communication system, the method including transmitting a sound packet corresponding to transmission data, with the sound packet including at least one sound symbol, the sound symbol including at least one sound sub-symbol, a plurality of sound symbol types are supported in the wireless communication system, and each of the plurality of sound symbol types is mapped to a preset data value.