The vast maritime environment is complex and ever changing, with salt spray corrosion, hull motion, sudden lighting shifts, and unstable power supply—longstanding challenges that have hindered the practical deployment of visual systems in marine inspection robots. In applications such as hull external inspection, long range target detection, and port security monitoring, standard camera modules suffer from blurred long distance imaging, parameter loss after power outages, and sluggish command response times, severely limiting the autonomous operational capabilities of shipborne robots. In this field test, we evaluated an integrated vision solution pairing the Camry CM8236U zoom lens module with the CM2001S control board, demonstrating its real world performance in ultra long range observation and stable control under actual ship robot operating conditions.

I. 36x optical super-telephoto zoom, enabling clear capture of distant targets at sea.

When performing robotic operations on ships, it is often necessary to identify hull welds, corrosion spots, port obstacles, and floating debris from distances of tens or even hundreds of meters. Conventional cameras lack sufficient zoom capability, resulting in severe image blurring at long ranges. The CM8236U is equipped with a 2.12 megapixel imaging sensor and a 36× optical zoom lens; unlike digital zoom, which degrades image quality, optical zoom preserves native image details throughout the entire zoom range.

During field trials in maritime fog, the vessel borne robot moves along the ship’s side to perform inspections. Leveraging the CM8236U’s ultra long range telephoto capability, it can clearly capture even minute surface damage from a distance without needing to approach the target. When switching between day and night lighting conditions, the imaging module automatically adapts to changes in illumination, effectively suppressing strong glare from the sea surface and reducing noise in low light environments. Even when the robot experiences slight vibrations due to hull motion, the module maintains stable focus on the target, addressing the core requirements of maritime inspection—“seeing far and seeing clearly”—and providing high definition visual data to support the vessel borne robot’s autonomous object recognition and risk alerting capabilities.

II. CM2001S Control Board: A Stable and Reliable Control Hub for Maritime Applications

An excellent zoom motorized lens requires a stable, reliable control unit to work in concert and deliver optimal performance. The CM2001S encoder control board is the core control platform for this solution, specifically designed to meet the demanding operating conditions of marine robots. Equipped with a power loss memory function, it ensures that when a marine robot encounters momentary power fluctuations or unexpected outages during offshore operations, it can automatically restore its previous settings—such as zoom position and communication parameters—upon restart, eliminating the need for manual recalibration.

It also supports command passthrough, allowing control commands issued by the robot’s master controller to be directly forwarded to the core module, thereby simplifying secondary development and reducing latency in device interoperation. In port and ocean-going vessel environments, where equipment is subjected to prolonged exposure to salt spray and vibration, the CM2001S boasts robust hardware-level anti interference capabilities, ensuring stable and continuous performance of core functions such as zoom, image encoding, and data transmission, thus preventing interruptions in visual signals during shipboard robotic operations.

III. Hardware Software Co-Design to Adapt to Diverse Operational Scenarios of Marine Robots

The CM8236U and CM2001S combination is not merely a simple hardware assembly; it is an integrated, scene specific solution tailored for marine robotics applications, compatible with a variety of platforms, including wall climbing inspection robots, port rail inspection robots, and unmanned surface vessels. When a wall climbing robot inspects the exterior of a ship’s hull, the CM8236U’s ultra long focal length enables cross area observation of high altitude structural components. A port inspection robot, during wide area patrols, can remotely monitor terminal facilities and vessel berthing conditions. Meanwhile, a maritime search-and-rescue USV can observe surface targets from a safe distance, thereby avoiding the risks associated with close range navigation. The entire module suite is compact, facilitating seamless integration into space constrained robot bodies and significantly shortening project integration timelines.

IV. Field Test Summary: A Mature Maritime Robotics Vision Solution

Based on the results of this real-world ship scene test, Kaimo Rui’s visual module suite precisely addresses the two core requirements of maritime robot vision systems: the CM8236U delivers high definition long range observation through 36× optical zoom, while the CM2001S ensures stable, controllable operation with power loss memory and command passthrough. Together, these components tackle key industry challenges such as long distance object recognition at sea, unstable power supply, and difficult command interaction.

Amid the wave of intelligent transformation in the maritime sector, shipborne robots are gradually replacing human operators in high-risk tasks such as hull inspections and long-range monitoring. As the “eyes” of these robots, visual hardware directly determines the upper limits of their operational capabilities. The CM8236U+CM2001S solution from Kaimorui combines ultra long range imaging with industrial grade control stability, offering a highly reliable, easily integrable visual hardware platform for deploying shipborne robot projects and helping the maritime industry achieve unmanned, long distance smart inspections.