Dual-Purpose Water Surface and Underwater Position Tracking
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Solution Overview
Problem
Conventional methods for determining the accurate position of underwater observation systems are labor-intensive and prone to errors due to poor sea conditions, and the recovery process is hindered by wave and wind-induced drift, making it difficult to obtain timely and stable slant range measurements.
Innovation Solution
A dual-purpose automatic positioning and tracking system featuring a rope winding and unwinding structure, auxiliary remote control ships, communication control units, and an automatic positioning tracker unit, which enables real-time accurate positioning and tracking by transmitting ranging signals and using GPS data to calculate trigonometric positions, and facilitates stable recovery through controlled rope management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual trigonometric calculation method is used to determine underwater position, then positioning accuracy can be achieved, but on-site workload increases significantly and errors occur easily due to poor sea conditions
Solution Approach 1:
The patent replaces the manual mechanical calculation process with an automatic electronic computing system. The on-board computer automatically performs trigonometric calculations using measured data from multiple hull positions, eliminating manual calculation operations and reducing on-site workload while maintaining positioning accuracy.
Solution Approach 2:
The system enables self-service by automatically processing positioning calculations without requiring manual intervention. The on-board computer autonomously receives measurement data, performs calculations, and determines the acoustic releaser position, reducing human involvement and potential for human error in poor sea conditions.
2Productivity
If acoustic releaser floats on water surface during recovery, then system can be recovered, but system becomes vulnerable to drift and turbulence due to waves and wind, making it difficult to measure stable slant range data
Solution Approach 1:
The patent applies preliminary action by pre-positioning the acoustic releaser on the hull structure before recovery operations begin. The releaser remains固定在 the hull and is moved together with the hull to the recovery location, eliminating the need for the releaser to float independently and avoiding drift and turbulence issues.
Solution Approach 2:
The hull structure serves as an intermediary between the acoustic releaser and the water surface environment. By mounting the releaser on the hull, the system mediates the interaction between the releaser and turbulent water conditions, providing a stable platform for slant range measurements during recovery.
3Ease of operation
If three-point positioning method is used on moving target, then positioning can be performed, but accurate position cannot be obtained due to drift and turbulence
Solution Approach 1:
The hull structure acts as a stable intermediary platform that eliminates the moving target problem. By performing all measurements from the hull-mounted transducer while the hull provides stable positioning, the system avoids the drift and turbulence issues that affect measurements from floating or moving platforms.
Solution Approach 2:
The system counteracts the instability of floating platforms by using the hull's mass and structural stability as a counterbalance. The heavy, stable hull provides a fixed reference frame that compensates for the instability that would otherwise affect the three-point positioning measurements.
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
The system effectively reduces manual workload, enhances positioning accuracy, and stabilizes the recovery process by minimizing the impact of waves and wind, allowing for quick and accurate tracking and positioning both underwater and on the water surface.
Implementation Method 1
transmitting ranging signals and using GPS data to calculate trigonometric positions
Data Source
AI summary
A water surface and underwater dual-purpose automatic positioning and tracking system and method, which belongs to the field of marine environment observation technologies. The positioning and tracking system includes: a rope winding and unwinding structure, arranged on a main hull structure; where the rope winding and unwinding structure includes a rope roller and a winding and unwinding rope wound around the rope roller; an auxiliary positioning remote control ship, located outside a main body of the main hull structure, where the auxiliary positioning remote control ship is in transmission and fixed connection with the winding and unwinding rope away from the rope roller; communication control units, arranged on the main hull structure and the auxiliary positioning remote control ship; and an automatic positioning tracker unit, arranged on the hull structure, where the automatic positioning tracker unit is in remote communication connection with the communication control units.