Vector Sensors for Acoustic Data Transmission
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Solution Overview
Problem
Current underwater wireless telemetry and data communication systems face limitations in data rates, particularly for real-time transmission of massive data such as video and telemetry signals over medium and long distances, due to the reliance on only the scalar component of the acoustic field.
Innovation Solution
The use of vector sensors and components of the acoustic field, including particle motion and derivatives, to modulate and transmit data, allowing for efficient data transmission and reception through both scalar and vector components, thereby reducing the array size required and increasing data transmission rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If only the scalar component of the acoustic field is used for data transmission, then the system is simpler to implement, but the data transmission rate is much lower than required for real-time transmission of massive data
Solution Approach 1:
The patent transitions from using only the scalar pressure component (0D) to utilizing vector components including particle velocity and acceleration (adding directional dimensions), thereby expanding the available channels for data transmission and achieving higher data rates without proportionally increasing system complexity
Solution Approach 2:
The patent changes the physical parameters being measured from scalar pressure alone to include vector parameters (particle velocity and acceleration), creating additional independent channels for parallel data transmission and significantly increasing overall throughput
2Productivity
If vector sensors are used to transmit data through multiple components of the acoustic field, then data transmission rate increases, but the device complexity increases
Solution Approach 1:
The patent employs vector sensors that simultaneously measure multiple acoustic field components (pressure, particle velocity, and acceleration), allowing a single sensor to perform multiple measurement functions and transmit multiple data streams, thereby increasing data rate without requiring proportional increases in the number of sensors
Solution Approach 2:
The patent combines multiple measurement functions (pressure sensing, velocity sensing, acceleration sensing) into integrated vector sensor units, merging what would otherwise require separate sensor arrays into a unified multi-functional platform that reduces overall system complexity
3Reliability
If larger sensor arrays are used to improve data transmission over medium and long distances, then transmission reliability improves, but the array size and system complexity increase
Solution Approach 1:
The patent exploits additional physical parameters (vector components of the acoustic field) to create more transmission channels, achieving improved reliability through diversity without requiring proportional increases in array physical dimensions, as the redundancy comes from parameter diversity rather than spatial expansion
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
This approach enhances data transmission rates and reliability by utilizing unexplored degrees of freedom in the acoustic field, reducing error probability and optimizing bandwidth usage, making it suitable for applications like underwater communication systems.
Implementation Method 1
transmitting data through the medium using the at least one vector sensor; receiving the data using at least one scalar sensor or one vector sensor
Data Source
AI summary
The present invention relates to transmitting data using vector sensors and via the vector components of the acoustic field. The data can be received via vector sensors and/or scalar sensors and/or arrays of such sensors.