Autonomy Is Unlocking the Ocean. Here's the Equipment Stack Behind It.
By C.A. Richards & Associates · June 2026
A trillion-dollar frontier is being unlocked beneath the waves. Autonomous underwater vehicles, persistent monitoring platforms, and AI-driven inspection systems are transforming how the world interacts with its most critical — and least understood — infrastructure.
The ocean covers 71% of the Earth's surface. Ninety-five percent of all intercontinental data travels through roughly 500 fiber-optic cables resting on the seabed. Over 20,000 miles of active oil and gas pipelines snake across the seafloor. Offshore wind foundations, subsea power cables, and scientific monitoring arrays are being added at an accelerating pace.
What makes all of this possible — from a $200,000 autonomous inspection drone to a $400 million crewed research vessel — is the same underlying equipment stack. Six functional layers, each with its own technology requirements, each interdependent with the others.
C.A. Richards has been supplying components of this stack to Gulf Coast operators, contractors, and integrators since 1971. Here's how we think about it.
Layer 1 of 6
See
Sonar · Cameras · Lighting · Lasers
Every autonomous mission starts with situational awareness. Modern subsea vehicles rely on a layered sensor stack: multibeam and imaging sonar to map the environment acoustically, high-definition cameras for visual inspection and documentation, LED lighting arrays to illuminate targets at depth, and laser profiling systems for precise dimensional measurement of structures and welds.
The convergence of smaller form factors, lower power draw, and higher resolution has made it possible to pack more sensing capability onto a single vehicle than ever before — enabling ROVs and AUVs to see farther, clearer, and with greater fidelity than the human eye ever could at depth.
Equipment in this layer
- Multibeam imaging sonar
- HD & 4K subsea cameras
- LED lighting arrays
- Laser line profilers
- Forward-looking sonar (FLS)
- Acoustic Doppler Current Profilers (ADCP)
Layer 2 of 6
Hear
Acoustic Sensing · Leak Detection · Underwater Communications
Sound travels roughly five times faster in water than in air, making acoustics the primary medium for subsea sensing and communication. Hydrophone arrays and passive acoustic monitoring systems listen for anomalies — from the ultrasonic signature of a pressurized leak to the low-frequency hum of a vessel's propulsion system.
Active acoustic systems — pingers, transponders, and USBL positioning — give vehicles precise location awareness without GPS. Acoustic modems carry data and commands between surface and subsea assets. As autonomous fleets grow, the acoustic layer becomes the nervous system of the entire operation.
Equipment in this layer
- Hydrophone arrays
- Acoustic leak detection
- USBL positioning systems
- Acoustic modems
- Passive acoustic monitoring
- Subsea pingers & transponders
Layer 3 of 6
Power
Subsea Batteries · Power Management · Propulsion
Autonomy is only as good as the energy behind it. The shift from tethered ROVs to free-swimming AUVs has driven rapid innovation in subsea battery technology — higher energy density, smarter battery management systems, and pressure-tolerant designs that eliminate the need for heavy pressure housings.
Electric thrusters and brushless DC motors have replaced hydraulic systems on many vehicles, reducing complexity and improving efficiency. Power management electronics now dynamically allocate energy across sensors, propulsion, and communications to maximize mission endurance. The result: vehicles that can operate for hours or days on a single charge, at depths that would have been impractical a decade ago.
Equipment in this layer
- Subsea lithium battery packs
- Battery management systems (BMS)
- Electric thrusters & motors
- Hydraulic power units (HPU)
- Power distribution modules
- Actuators & servo systems
Layer 4 of 6
Connect
Ship-to-Shore · Subsea Data · Satellite · Rugged Networks
The ocean has historically been a communications dead zone. Satellite connectivity — now dramatically improved by low-Earth-orbit constellations — has transformed the surface layer, enabling real-time data streaming from vessels anywhere on the globe. Below the surface, fiber-optic tethers carry high-bandwidth video and control signals between ROVs and their operators.
Emerging technologies are beginning to bridge the air-water interface: low-frequency electromagnetic signaling, optical modems, and hybrid acoustic-optical systems are extending connectivity deeper and farther than ever before. For operators managing multiple assets across a field, rugged industrial networking hardware ensures reliable data flow from sensor to shore.
Equipment in this layer
- Fiber-optic ROV tethers
- Satellite communications terminals
- Subsea acoustic modems
- Optical underwater modems
- Rugged marine networking hardware
- Ship-to-shore data systems
Layer 5 of 6
Deploy
LARS · Deck Handling · Umbilicals · Tethers
Getting equipment safely into and out of the water is one of the most hazardous phases of any offshore operation. Launch and recovery systems (LARS) — from simple A-frames to sophisticated active-heave-compensated cranes — manage the dynamic loads of deploying heavy vehicles in open ocean conditions.
Umbilicals and tethers are the lifelines of tethered systems: they carry power, fiber optics, and hydraulic fluid simultaneously, engineered to withstand millions of flex cycles, crushing pressure, and the constant abrasion of working in a marine environment. As vehicle sizes and mission profiles diversify, so does the range of handling and deployment solutions required to support them.
Equipment in this layer
- Launch & recovery systems (LARS)
- Active heave compensation
- A-frames & deck cranes
- ROV umbilicals
- Tether management systems (TMS)
- Winches & cable handling equipment
Layer 6 of 6
Inspect
Pipelines · Cables · Foundations · Offshore Assets
The world's subsea infrastructure — pipelines, power cables, data cables, wind turbine foundations, platform risers — requires continuous inspection to remain safe and operational. Historically this meant expensive crewed vessels, tethered robots, and weeks of mobilization time. Autonomous systems are changing the economics entirely.
Persistent monitoring platforms, resident ROVs, and AUV survey systems can now conduct routine inspections on a continuous basis, flagging anomalies in real time rather than waiting for an annual survey. The data they collect — sonar imagery, video, corrosion measurements, cathodic protection readings — feeds into digital twin models that give operators a living picture of asset health across their entire field.
Equipment in this layer
- Pipeline inspection systems
- Cathodic protection (CP) probes
- Subsea cable inspection tools
- Corrosion monitoring sensors
- Structural inspection cameras
- Digital twin data integration
The Stack Is Only as Strong as Its Weakest Layer
What makes subsea autonomy genuinely hard isn't any single technology — it's the integration. A vehicle with world-class cameras is useless if its acoustic positioning is unreliable. A perfectly engineered umbilical fails the mission if the LARS can't handle the sea state. A continuous monitoring system generates no value if the data can't get to shore.
This is exactly why C.A. Richards exists. We represent manufacturers across all six layers of this stack — and we've spent over 50 years learning how they work together in the Gulf of Mexico and beyond. When you call us, you're not talking to a catalog. You're talking to people who have seen these systems deployed, who know which combinations work, and who can help you build a solution rather than just a parts list.
One quote. One PO. Less friction.
Building Something for the Ocean?
Talk to our team about the right equipment for your application — from a single sensor to a complete vehicle integration.