Wire-based digital communication systems face several problems, especially over long distances and in tough environments. Signals can weaken and slow down due to interference, causing delays and poor performance. As the need for faster data increases, these systems also struggle to scale up and handle higher bandwidth efficiently. They often use a lot of energy, which raises cost, especially in large industrial setups. Another key issue is reliability; any failure in communication can be critical in important operations. These problems show the need for better, more reliable, energy-efficient, and high-performing communication systems.

This project offers a solution by using Programmable Logic Controllers (PLCs) in Remotely Operated Vehicles (ROVs) to improve control, reliability, and performance during underwater tasks. PLCs manage key functions like movement, steering, and tool handling. They also collect and monitor data from sensors that measure things like depth, temperature, and pressure. PLCs allow for automation of routine tasks, making operations more efficient and reducing the need for constant human control. They can also connect easily with other systems on the ROV, such as cameras, sonar, and communication tools, ensuring everything works smoothly together. Because PLCs are tough and reliable, they are ideal for the harsh conditions underwater, making them a smart and durable solution for ROV operations.

The key innovation in this project lies in the use of a novel frequency modulation method within the Programmable Logic Controller (PLC) transceiver system. This advanced modulation technique enhances signal clarity and stability, making it highly effective for long-distance digital communication, even in challenging environments such as underwater operations. What sets this technology apart is its versatility. The system can be used for a wide range of remote control and sensing applications, including both shallow and deep-water Remotely Operated Vehicle (ROV) operations. By combining robust control, improved data transmission, and reliable performance through innovative frequency modulation, this technology offers a more efficient and adaptable solution for long-distance underwater communication and control.