Seabed Laser Temperature Control for Stable Submarine Cable Operation
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Solution Overview
Problem
Submarine cable systems face challenges in maintaining stable operation of laser modules used for remote control and response functions due to temperature changes and long-term continuous use, which can lead to failure over the required 25-year operational period.
Innovation Solution
Incorporating a laser element and a temperature adjustment means into the submarine apparatus to generate optical signals for remote control responses, while using a constant voltage generation unit and a pseudo power supply load unit to manage power and maintain stable temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a laser module is used for remote control and response functions in the submarine apparatus, then the submarine cable system can achieve remote control capability, but the laser module may cause deterioration due to temperature change and long-term continuous use, leading to failure
Solution Approach 1:
The patent applies preliminary action by introducing a temperature adjustment means (temperature control unit) that proactively maintains the laser module at an appropriate temperature before deterioration can occur. The control unit receives temperature information from the laser module and adjusts the temperature in advance to prevent deterioration from temperature changes during long-term operation.
Solution Approach 2:
The patent implements feedback control where the control unit receives temperature information from the laser module, processes this information, and adjusts the temperature accordingly. This closed-loop feedback system ensures the laser module operates within optimal temperature parameters, preventing deterioration while maintaining remote control functionality.
2Duration of action of stationary object
If the submarine apparatus operates continuously for 25 years, then long-term functionality is required, but the laser module is at risk of failure due to cumulative deterioration from continuous use
Solution Approach 1:
The temperature adjustment means performs preliminary temperature management to prevent cumulative deterioration. By continuously monitoring and adjusting the laser module temperature, the system proactively mitigates the effects of long-term continuous operation, enabling stable function over the required 25-year operational period.
Solution Approach 2:
The system implements self-service through automatic temperature control where the control unit autonomously receives temperature information from the laser module and adjusts the temperature without external intervention. This self-regulating mechanism ensures continuous protection against deterioration throughout the operational lifespan.
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 solution enables stable operation of submarine cable systems by adjusting the laser element's temperature, suppressing deterioration, and maintaining reliable power supply, thus ensuring long-term functionality.
Implementation Method 1
a laser element configured to generate an optical signal to be used in a case of responding to a remote control signal
Implementation Method 2
a temperature adjustment means for adjusting a temperature of the laser element
Data Source
AI summary
Provided are a submarine apparatus, a submarine cable system, a method for controlling the submarine apparatus, and a non-transitory computer-readable medium that can be stably operated. The submarine apparatus includes a laser element configured to generate an optical signal to be used in a case of responding to a remote control signal received from a land apparatus disposed on land via a cable, and a temperature adjustment unit configured to adjust a temperature of the laser element, and is disposed on the seabed.