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Falkirk, Scotland, United Kingdom
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416 followers
357 connections
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Articles by Allan
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Adding custom applications to Buildroot - a simple introduction
Adding custom applications to Buildroot - a simple introduction
Code examples are at link. In a previous article I covered building a simple Linux OS for the Raspberry Pi 5 (Buildroot…
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Dipping a toe in the ocean of CMakeDec 9, 2025
Dipping a toe in the ocean of CMake
A very quick taster using CMake for C++ development. This article is intended as a hands-on introduction to using the…
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A very quick introduction to embedded Linux with BuildrootDec 2, 2025
A very quick introduction to embedded Linux with Buildroot
Just for fun, here's a very quick introduction to building and running embedded Linux on a Raspberry Pi 5. This is…
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Mutexes - past, present and futureJun 30, 2020
Mutexes - past, present and future
Here's a quick run through some multi-threading basics - what I like to think of as the evolution of the humble mutex…
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It's not just about memoryApr 19, 2020
It's not just about memory
Memory is not the only resource A recent article (https://www.linkedin.
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Using the event loop to simplify multi-threaded systemsApr 10, 2020
Using the event loop to simplify multi-threaded systems
Here's a quick hack which is probably 'old hat' for most developers, but I haven't seen it written up elsewhere…
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Applying a micro-service approach to embedded systemsApr 4, 2020
Applying a micro-service approach to embedded systems
Over the past few years I've been designing architectures for embedded systems and I've been able to make use of a…
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Activity
416 followers
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Allan Jones shared thisA short article on adding a custom application to an embedded Linux system using buildroot. The examples create a simple application that runs as a service and flashes an LED. Although rather trivial, the examples show the basic steps that would be needed to set up a real embedded Linux application. No AI involved - the mistakes are mine!Adding custom applications to Buildroot - a simple introductionAdding custom applications to Buildroot - a simple introductionAllan Jones
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Allan Jones shared thisA very quick introduction to cmake - more of a taster than a tutorial, with an example of fetching external libraries and building a simple *.deb installer.
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Allan Jones shared thisJust a quick and very simple introduction to building Linux for a Raspberry Pi 5 using Buildroot. This is aimed at someone who's never used Yocto or Buildroot to create an operating system for an embedded Linux device.A very quick introduction to embedded Linux with BuildrootA very quick introduction to embedded Linux with BuildrootAllan Jones
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Allan Jones shared thisGood no-nonsense guide to anyone considering using contract embedded engineers.Allan Jones shared this"We're thinking about hiring an Embedded Software Contractor..." "But how much would it cost?" We've had quite a lot of what we would describe as 'loose enquiries' this month from businesses across the UK along these lines. So we've put together a survey on market rates: https://lnkd.in/e3bzaJKr Please reach out to our Contract experts for more information: Philip Tate Alex Tattum Sophie Smith Jen Jackson Alternatively, if you have a permanent vacancy you need assistance with finding the right candidate for please reach out to Tom Fear Lucy Handford Jak JenkinsContract Embedded Software Engineer Rates (2026 Guide)Contract Embedded Software Engineer Rates (2026 Guide)
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Allan Jones shared thisThis is so true, particularly in smaller organisations. A typical day for software engineer in robotics; reworking a PCB, understanding a new sensor spec, debugging a deadlock in FreeRTOS, hiring a boat for a sea trial (and doing a risk assessment for same), adding some libs to the Yocto build for the embedded Linux boards, figuring out why the Javascript GUI only works on some browsers, setting up a cellular modem for the sea trial, fixing the ROS startup scripts, going to Halfords to get an inverter because you've just learnt the boat for the sea trial does have 240 V on board. Finally getting some time to write that C++ code that was today's top priority.Allan Jones shared thisRobotics engineer = unicorn When you're building your first robot, you'll quickly realize that you need a number of different skills: * System engineer: you'll need to customize your kernel or add/modify drivers. * Software engineer: of course, you'll need to implement your own business logic for your robot. * Electrical engineer: you'll need to create your PCB or assemble various components (motors, sensors,...). * Mechanical engineer: you'll need to think about the physics (stability, weight,...) and build your robot. As for me, I'm an expert in software engineering, but I had to learn a lot of new things related to other aspects.
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Allan Jones posted thisNeed an embedded software expert to accelerate your project? Need a project completing but your development team is flat out on other work? With over 30 years of industrial experience, my expertise includes; ● C++ ● Linux ● RTOS / bare metal ● IoT ● Robotics (ROS) ● Hardware integration and debugging. ● Technical writing From initial concept to deployment, I help businesses overcome complex challenges and deliver innovative products. Preferential rates for new clients and small startups. Services can be provided on-site or remotely (I have dedicated office space, test equipment and a small workshop). I offer preferential rates for new clients and small startups, with flexible hourly or fixed-price project options. #EmbeddedSoftwareEngineer #Firmware #TechJobs #FreelanceEngineer #SoftwareConsulting
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Allan Jones shared thisJust finished the course “Introduction to Embedded Systems with Rust” by Senyo Simpson! A nice introduction to using Rust on micro controllers. Check it out: https://lnkd.in/e8VNP9Fc #embeddedsystems #rust.
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Allan Jones liked thisConnor and I are creating a community event for Embedded & Electronics Engineers in Scotland. The goals are simple: 1. Network with other E&E professionals 2. Share best practice processes & tools for design and manufacture 3. Showcase new technologies 4. Keep updated on the electronics supply chain and market conditions The critical success factor - enoyable learning and collaboration in a relaxed environment. We will be posting more details soon, but pencil in the evening of 1st April in Glasgow if this is for you.Allan Jones liked this🚀 Community Hardware Event Scotland – We Want Your Input! I’m excited to share that Derek Liddle and I will be co‑hosting a community hardware event on April 1st - more details coming very soon! 🧙♂️ The aim of this event is to bring engineers, founders, and hardware innovators together in a community built on shared learning, practical insight, and real collaboration. Our focus is simple: to create a space where people can openly exchange ideas, learn from one another’s experiences, and grow - both technically and professionally. Before we lock in the agenda, I’d love to hear from my network: 👉 What topics, trends, or challenges would you find most valuable at a hardware‑focused community event? A few ideas already on the table: 🔹 How AI is shaping embedded systems & hardware development 🔹 Building and structuring processes in a startup or scaling hardware organisation 🔹 Best practices for designing reliable prototypes & moving toward production 🔹 Real‑world lessons from integrating firmware, electronics, and cloud systems Whether you're an engineer, founder, product person, or just passionate about Embedded Systems & Hardware your input will help shape the sessions, speakers, and discussions. 👇 What would you love to see covered? Drop your thoughts in the comments or message directly!
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Allan Jones liked thisAllan Jones liked thisHi All, I'm seeking a home for an Environmental Chamber & would like to utilise this to benefit the hardware / product development community in Scotland. Hence I'm reaching out to the eco-system in Scotland to demonstrate collaboration really does work. If your a technology company and could locate an environmental chamber and make that available for our community to use then I'd be open to sharing for the benefit of our hardware start-ups. Please share and help me provide an often expensive, outsourced resource for the hardware community to utilise.
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VallumTech Ltd
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Kystdesign
10K followers
What does it take to build a fully electric ROV that actually delivers offshore? Zeerov represents a new generation of ROVs built on fully electric technology to deliver higher performance, lower complexity, and improved sustainability. Read the story behind the development in the article below 👇 https://lnkd.in/eYExw7zh
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SH Group
9K followers
When an ROV goes subsea, there are no second chances. Everything depends on one connection. Power. Data. Control. Recovery. All running through a single umbilical. And yet handling is often treated as routine. But ROV umbilicals are not just cables. They combine high voltage, fibre optics and load‑bearing strength members in one structure. A small deviation in tension. Uneven layering on the drum. Hidden damage to fibres or strength members. It does not show immediately. But it will show — offshore, under load, when it matters most. This is why spooling is not just handling. It is control. At SH Group, we work with controlled tension, uniform layering and full data logging ensuring umbilicals are handled exactly as specified, every time. If you are working with heavy umbilicals, complex TMS setups or increasing data demands, it might be time to look closer at how they are handled. #ROV #Umbilical #Offshore #Subsea #Spooling #DataLogging
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Ocean Science Technology
13K followers
At Oceanology International 2026 in London, QYSEA · FIFISH AI ROV highlighted how compact ROV platforms are evolving beyond simple visual inspection tools. Speaking with OST, Marketing Manager Curtis Lee discussed the company’s range of compact ROV systems alongside its integrated sensors and AI-driven software capabilities. These technologies enable operators to capture operational data as well as video imagery, supporting more detailed underwater inspections and analysis. Lee noted that advances in sensor integration, imaging, and navigation software are allowing smaller ROVs to perform increasingly complex tasks — from 3D imaging in low-visibility environments to semi-autonomous inspection workflows that help reduce operator workload. Read more on OST: https://hubs.la/Q046yKyy0 #Oi26 #Oceanology
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MATE ROV COMPETITION
3K followers
📆 It’s time for a mid-year check in! MATE ROV 2026 is just over six months away, and the manuals are out; if your team has been working hard to design and build an ROV, here are some tips on what milestones you may want to be working towards at this point. 🛠️ By this time, some teams have their control system completed and are moving a simple frame around a pool. Remember that no matter what the mission tasks are, an ROV will always need to move forward and reverse, up and down, back and forth, and be able to turn in the water. Getting the control system built early is a key milestone that many top teams work towards! 🔗 Find more helpful resources and tips here: https://hubs.ly/Q03XMg6j0 #MATEROV #MATEROVCompetition #MATEROV2026 #StudentSuccess #EngineeringStudent
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Michael J Brooks
4C Subsea Risk Consulting • 449 followers
Delighted to post my colleagues at 4C Consulting have secured a prestigious commission... "Red Eléctrica, as Transmission owner, is evaluating a program to enhance reactive power balancing through strategically positioned subsea interconnector installations in submarine links . 4C Consulting, a specialist division of TGS | 4C, has been engaged by Red Eléctrica to serve as an Owner’s Engineer (OE) for a range of consultancy tasks supporting Red Eléctrica's projects. In this capacity, 4C Consulting will collaborate with project stakeholders to safeguard Red Eléctrica's interests. Their responsibilities include overseeing technical studies for submarine interconnection projects, ensuring technical coherence in interconnection solutions, and managing the technical installation process. The initial agreement spans 2.5 years with potential extensions beyond that period."
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DWTEK Subsea Solution
2K followers
#ROV #camera 【🔍What to Know About ROV Cameras: Performance, Applications & Cost】 ROV cameras are the eyes beneath the waves, playing a vital role in #underwater inspections, marine research, offshore monitoring, safety operations, and search & recovery missions. 📌 In our latest blog post, we dive into: ✅ Underwater camera introduction ✅ Common applications ✅ How to choose the right ROV camera? ✅ DWTEK's camera lineup 🌐 Explore the full article here: https://lnkd.in/gHg3WNcY
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Ben Ayres
Fugro • 597 followers
🌊 Marine site characterisation is about to change, forever. Advances in uncrewed and remote operations are opening doors to safer, faster, and more sustainable ways to undertake geophysical and hydrographic surveys.⚡ Our new 17 m uncrewed surface vessel, Blue Prism®, is built to deliver world-class results – made possible through seamless integration with our onshore remote operations centres. Launching in 2026. #MaritimeInnovation #RemoteOperations #UnlockingInsights #Fugro
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Film-Ocean
14K followers
One of Film Ocean’s powerful Schilling HD 150HP Work Class ROVs is currently deployed on a UK-based offshore wind farm, delivering high-precision survey and inspection services. Our experienced team has successfully completed a cable tracking survey, utilising advanced ROV-mounted sensors, including cable tracking systems and multibeam echosounders. This operation has delivered critical subsea data to support the integrity and ongoing performance of the wind farm’s cabling infrastructure. In addition, the team has carried out comprehensive integrity inspections on the turbine monopiles. This process involved: - Targeted marine growth removal and thorough cleaning of key inspection zones - Ultrasonic Thickness Testing (UTT) of structural welds - Delivery of a detailed inspection report to help ensure long-term asset performance and reliability At Film Ocean, we remain committed to supporting the renewable energy sector with safe, efficient, and data-driven ROV solutions that extend the operational lifespan of offshore assets. https://buff.ly/I6LbfSc #OffshoreWind #RenewableEnergy #ROV #SubseaSurvey #AssetIntegrity #FilmOcean #UTTesting #CableTracking #WorkClassROV
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Northeast Maritime Institute
3K followers
Did you know Northeast Maritime Online - NEMO° offers an STCW and USCG approved Terrestrial and Coastal Navigation Course? This fully online course covers chart introduction, aids to navigation, compass corrections by azimuth and amplitude, relative bearings, latitude and longitude, navigational tools, methods for determining position, dead reckoning, estimated position, current and leeway, running fix, bearings, great circle routes, tides and currents and electronic charts. https://lnkd.in/gaQdD7xk #tnav #terrestrialnavigation #coastalnavigation #elearning #maritimetraining
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offshoreWIND.biz
140K followers
The survey work is being carried out by Fugro as part of EirGrid Group’s Powering Up Offshore – South Coast project and under the TSO’s Offshore Marine Survey Framework, with subcontractors TechWorks Marine and Green Rebel conducting metocean and environmental surveys, respectively. Read more: https://lnkd.in/dirDcAGt
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Defence Finance Monitor
2K followers
HonuWorx Ltd, based in Aberdeen, is redefining subsea operations by replacing crewed surface vessels with autonomous, all-electric “mothership” submarines deploying ROVs. Its Loggerhead platform and HonuNet control system reduce costs, risks, and emissions while strengthening Europe’s ability to protect undersea infrastructure—cables, pipelines, wind farms—against sabotage. Backed by UKI2S, Scottish Enterprise, and industry partners like Shell and TotalEnergies, HonuWorx has achieved TRL 6–7 with world-first offshore trials and has been selected for NATO’s DIANA accelerator. The company is also filing patents on supervised autonomy and subsea deployment methods, securing its position as a sovereign European capability. For Europe, HonuWorx is more than a startup: it is a critical enabler of strategic autonomy in the maritime domain. By offering a NATO-origin, sovereign alternative to foreign subsea systems, it directly supports EU and NATO goals of resilience, multi-domain integration, and green defense. Its dual-use applications extend across offshore energy, subsea surveillance, and defense logistics, making it a cornerstone of Europe’s emerging Blue Security economy. Defence Finance Monitor rates HonuWorx 8/10, classifying it as a “Critical asset for European strategic autonomy.” #HonuWorx #Loggerhead #HonuNet #AutonomousSystems #SubseaRobotics #StevenGray #LeeWilson #NATODIANA #ScottishEnterprise #UKI2S #Shell #TotalEnergies #DefenceFinanceMonitor #StrategicAutonomy #EDT https://lnkd.in/dfXtwjkk
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Kofi Blaise M 发财
AW OFFSHORE • 1K followers
In subsea, technology may set the pace, but people set the standard. ROVs Don’t Drive Themselves that is Why Diverse Skilled People Remain the Core of Subsea Success Over the past decade, ROV systems have advanced tremendously from size, weight, capability and application, to the sophistication of systems or platforms such as the Schilling HD, UHD, Triton XLX, Trident UD, BlueROV2, DTG2, Saab Seaeye, and VideoRay. These innovations have reshaped subsea operations enabling everything from inspections and research to heavy construction and deepwater intervention to be more achievable and incident free within shortest time . Yet, as technology accelerates, a growing challenge emerges: skills fragmentation. An experienced pilot or technician with thousands of hours on one system may still find themselves overlooked for roles requiring expertise on another. The paradox is clear: while we celebrate progress, we risk sidelining talent. so what is the solution? 🎓 It is Training and certification which are essential!, but they are not without barriers. Courses cost thousands, learning never truly ends putting a strain on the personnel, At thesame time employers or contractors want to avoid downtime offshore which can translate into millions lost. This makes dependable, adaptable and diverse skilled personnel not a luxury, but a critical success factor. This is where AW OFFSHORE plays a strategic role. Whether you are at the beginning of your subsea career, building mastery as an ROV pilot, Technician, or leading complex campaigns, AW Offshore creates pathways and connections. With a robust database of employers and a proven manpower track record across West, and Central Africa, AW Offshore helps align the right talent to the right opportunity. For employers, operators, and contractors, the value lies in trusted, regionally accessible, and globally experienced manpower solutions provider. AW OFFSHORE,s approach reduces training overheads, minimizes downtime, and ensures projects are delivered safely, efficiently, and competitively by providing the best qualified candidate for your projects. 🤝 My call is simple: To subsea professionals conect with us and stay invested in your growth; the industry need you to progress To subsea companies let us collaborate. With AW OFFSHORE as a partner, the talent fragmentation or gap is bridge, with a resilient subsea teams for we have a huge data base of personnels with diverse skills. At the end of the day, ROVs are sophisticated machines. But it is skilled, trained, and motivated people who keep subsea operations and our energy future moving forward. 👉 To all subsea professionals, what challenges do you face in accessing opportunities? Your voice is critical as we shape the workforce of tomorrow. Subsea #ROV #OffshoreEnergy #SkilledLabor #AWOffshore #OilAndGas #Technology #Innovation #Engineering #SubseaServices #Collaboration #Manpower #TrustedPartner #AfricanEnergy #OffshoreAfrica #SubseaExperts #Mob #Demob
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Kraken Robotics
53K followers
We’re pleased to share that our services KATFISH towed synthetic aperture sonar system has arrived at its new home in Aberdeen, UK! The system will be supporting offshore energy projects around the world, operated by our highly experienced services field team. KATFISH integrates Kraken SAS on an actively stabilized towfish, enabling constant real-time 3 cm x 3 cm resolution across a 400 m swath. Compared to typical survey methods, KATFISH can survey larger areas of the ocean floor more quickly, decreasing vessel time and carbon emissions. Ideal for pre- and post-construction surveys, unexploded ordnance (UXO) surveys, subsea infrastructure inspection, and marine ecological assessments, KATFISH delivers high quality data, enabling developers to make faster, more informed decisions on subsea installations. Learn more: https://lnkd.in/es7YyZUy #KrakenRobotics #SyntheticApertureSonar #SAS #KATFISH #SubseaSurvey #OffshoreWind
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Andy Robson
A SQUARED Engineering • 10K followers
Stacked on the Slipway Ship Design and Performance for Masters and Mates Introducing a 7-day series of book recommendations for naval architects, maritime engineers, and anyone who builds their thinking around water. Being a great engineer isn’t just about calcs and code, it’s about curiosity, context, and knowing the stories behind the steel. Ship Design and Performance for Masters and Mates by Bryan Barrass is a practical classic, especially useful for naval architects early in their careers. Good naval architecture starts with empathy for the people who actually sail the ships. This book was written for deck officers, not designers, but that’s exactly why it’s so valuable. It teaches you how ships behave at sea: rolling, pitching, burning fuel, trimming by the stern. If you’ve only ever studied vessels from behind a screen or spreadsheet, Barrass offers a reality check, and a very readable one at that. For: Junior engineers, University students, or anyone who’s never seen a wheelhouse in rough weather. #StackedOnTheSlipway #MaritimeReads #NavalArchitecture #EngineeringBooks #MaritimeLearning #ASquaredThinking #FYNB
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PrecisionMarketInsights
299 followers
𝐖𝐨𝐫𝐤 𝐂𝐥𝐚𝐬𝐬 𝐑𝐎𝐕 𝐌𝐚𝐫𝐤𝐞𝐭 𝐒𝐢𝐳𝐞, 𝐆𝐞𝐨𝐩𝐨𝐥𝐢𝐭𝐢𝐜𝐚𝐥 𝐈𝐦𝐩𝐚𝐜𝐭 & 𝐂𝐨𝐦𝐩𝐞𝐭𝐢𝐭𝐢𝐯𝐞 𝐋𝐚𝐧𝐝𝐬𝐜𝐚𝐩𝐞 (𝟐𝟎𝟐𝟔–𝟐𝟎𝟑𝟑) Market Size (2026–2033): The global Work Class ROV market is projected to reach approximately USD 4.8–6.2 billion by 2033, growing at a CAGR of 5.8%–7.2% during the forecast period. The current geopolitical environment, including offshore territorial disputes, energy security concerns, and shifting oil & gas exploration strategies, is significantly influencing the Work Class ROV market. Increased defense spending and subsea surveillance requirements are driving demand for advanced ROV systems, particularly in regions such as the Middle East, South China Sea, and Eastern Europe. Sanctions, trade restrictions, and supply chain disruptions are also impacting component availability and project timelines, prompting localization strategies and supplier diversification among key players. Additionally, the rising adoption of deepwater and ultra-deepwater exploration, offshore wind installations, and subsea infrastructure maintenance is accelerating market growth. Work Class ROVs are witnessing increased integration with AI-based navigation, real-time data analytics, and automation technologies, enhancing operational efficiency and reducing human intervention. The energy transition toward renewables is further expanding application areas, particularly in offshore wind farms, thereby creating new revenue streams and long-term growth opportunities for industry participants. 𝐀𝐜𝐜𝐞𝐬𝐬 𝐅𝐫𝐞𝐞 𝐒𝐚𝐦𝐩𝐥𝐞 𝐂𝐨𝐩𝐲 𝐨𝐟 𝐖𝐨𝐫𝐤 𝐂𝐥𝐚𝐬𝐬 𝐑𝐎𝐕 𝐌𝐚𝐫𝐤𝐞𝐭 𝐑𝐞𝐩𝐨𝐫𝐭 @ https://lnkd.in/gmGTnzZc Company Profiles VideoRay, an AV company SMDC IKM Subsea AS Rana Subsea Bordelon Marine SeaTrepid International LLC Advance Global Recruitment Ltd SYOS Aerospace CNS International Official IKM Subsea Brasil Blueprint Subsea QSTAR ROV TRAINING & SUBSEA SOLUTIONS Geo Oceans Kystdesign DeepTech SeaRobotics Corp. Canpac Marine Services Inc. O.M.S Subsea HATCH ENERGY GROUP ASIC Offshore & Marine Sdn Bhd AQUA Exploración AUS-ROV Underwater ROV Inspection Services Australia Sub Atlantic Ltd Guardian Offshore AU Pty Ltd PT. OFFSHORE SERVICES INDONESIA MarineNav Ltd. Sherwood Electronics Limited Trac Oil and Gas Services Ghana Ltd BALTIC Taucherei- und Bergungsbetrieb Rostock GmbH Rovtech WESTFIELD SUBSEA LTD Sub-Merge D&R Subsea Co., Ltd JIL GLOBAL INC Vocean Ltd - ROV Control System Upgrades Boatlabs AS Palmetto Subsea Inspections, LLC Seadrift Offshore Limited Atlantic Marine & Oilfield Services Ltd. CORETECH RESOURCES PTE LTD Trending Hashtags #WorkClassROVMarket #ROVIndustry #SubseaTechnology #OffshoreEnergy #UnderwaterRobotics #DeepwaterExploration #OffshoreWind #MarineEngineering #EnergyTransition #OilAndGasServices #AutonomousROV #AIinRobotics #SubseaInspection #OceanTechnology #IndustrialRobotics
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T12 Engineering
2K followers
In offshore energy, reliable intervention starts with reliable tooling, and that begins with strong engineering. At T12, we design and develop bespoke ROV tooling that’s built around real subsea conditions, not idealised assumptions. Whether the requirement is to support decommissioning, enhance well access, or enable safer diverless operations, our approach stays consistent: engineer it well, build it right and make it work seamlessly in the field. ROV intervention often means dealing with ageing infrastructure, tight interfaces and operational constraints that evolve over time. That’s why adaptability, robustness and practicality sit at the heart of our tooling designs. By combining mechanical design capability with fabrication knowledge and subsea operational insight, we create systems that aren’t just functional they’re dependable, repeatable and efficient offshore. We work closely with operators and service partners to ensure every tool is grounded in operational reality and ready for deployment. The result is equipment that reduces risk, saves time and supports safer, more effective subsea intervention. For us, good engineering isn’t a deliverable. It’s the thread that turns a complex operational need into a tool that performs when it matters. #TeamT12
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Houlder Limited
10K followers
Designing ships for real seas, not just calm ones. Houlder is proud to be leading the COMLink Tool project, an ambitious collaboration with Siem Shipping and University of Southampton to improve how we model wave resistance in early-stage ship design. By integrating operational data, machine learning, and high-fidelity simulations, we’re creating a tool to support smarter, more efficient vessels from day one. Backed by the Department for Transport (DfT), United Kingdom’s Smart Shipping Acceleration Fund, initial testing will focus on car carriers — but the potential spans multiple vessel types. If you're designing for efficiency and want to factor in real-world performance from the outset, we’d love to talk. #SmartShipping #MaritimeInnovation #WaveResistance #ShipDesign
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Dockstr
3K followers
ROVs: Divestment & Acquisition - one of Dockstr's key services The ROV market remains buoyant. Lead times for new systems remain extended ⌛, driving many ROV operators to consider alternative strategies for meeting operational demand. While the appetite for new builds is strong, the availability of proven, used systems is playing an increasingly important role in keeping projects on track. Certainly, the market for new systems has its core issue of extended lead times, however, this is not to say it is without other complications. Nonetheless, comparatively to the used market it is a walk in the park, so to speak. From the management of ageing assets to ensuring optimal value on divestment 💰, owners and buyers face a complex set of considerations. In today’s competitive environment, informed decision-making is critical for used asset acquisitions. Without the right experience and advice from actors active within the space, offshore operators are at risk of exposure to acquiring the wrong asset/s. At Dockstr, we specialise in guiding clients through these decisions from observation-class to work-class systems. Our involvement goes beyond connecting buyers and sellers. We deliver a complete transaction service: valuation, marketing and negotiation, to due diligence and contract execution 📄. 📊 Our Track Record In recent years, we have built a reputation for delivering results in the subsea industry, consistently achieving successful outcomes for both asset owners and equipment buyers. Our ROV transaction portfolio includes: 50+ systems successfully divested ✅ Work-Class ROVs: XLXs, XLSs, XLs, Schilling HDs, etc ✅ Saab Seaeye: Leopards, Lynxes, Tigers, 15+ Falcons ✅ Forum Energy Technologies Sub-Atlantic: Mohicans, Super Mohawks ✅ VideoRay: Defenders, Pro 4s ✅ …and many others We have facilitated ROV transactions across the globe 🌍, from Spain to Canada, the UK to Australia, throughout the Middle East and Europe. Our ability to execute complex, cross-border transactions (never a simple feat) is quite likely unmatched within our industry. If you are considering the divestment or acquisition of ROV assets, or would like a professional valuation of your fleet, we welcome the opportunity to demonstrate how Dockstr can deliver value 🤝. #ROV #Marine_Equipment #Brokering #Valuation
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Fikri Juliadi
Shearwater GeoServices • 551 followers
A question I get asked a lot from people outside this industry ... how does an ROV actually know where it is underwater? Fair question. GPS doesn't work below the surface. So how do we place a node within meters of its target at 2,000 or 3,000 meter depth? Especially for OBN where 4D repeatability is everything? The answer is layered. No single sensor gives you the position. It's the integration of multiple systems working together. The foundation is USBL on the surface vessel. A hull-mounted transceiver sends acoustic pulses to a beacon on the ROV. Travel time gives range. Phase difference between hydrophone elements gives bearing. Combined with vessel GNSS, you get the ROV's real-world position. Sonardyne Ranger 2, Kongsberg HiPAP, and Exail GAPS are the common systems on OBN vessels today. But USBL alone has a problem. Accuracy degrades with depth. Small angular errors become large position errors at the seabed. That's where INS comes in. An Inertial Navigation System on the ROV uses gyros and accelerometers to track motion. Modern units like Sonardyne SPRINT or Kongsberg HAIN deliver heading accuracy around 0.02 degrees. The catch is INS drifts over time without external aiding. So you aid it. With USBL fixes from the surface, DVL velocity from the seabed, depth from a pressure sensor. The DVL ... Doppler Velocity Log ... is the workhorse near the seabed. Four beams pinging downward, measuring Doppler shift off the seafloor. That gives precise velocity over ground. Sonardyne Syrinx is widely used. When DVL is bottom-locked and feeding the INS, position stays tight between USBL updates. The combination matters. USBL aiding gives roughly 4.5x precision improvement over standalone INS. USBL plus DVL together delivers 6 to 13x improvement. That's how meter-level repeatability is achieved. For deeper water and tighter accuracy, LBL gets added. A network of seabed transponders gives the ROV fixed references that don't move with the vessel. For PRM and 4D repeatability projects, this LBL-aided INS workflow is becoming the standard. All this feeds into the navigation software ... NavView, QINSy, NaviPac ... where positions are computed in real time. The pilot drives the ROV to within centimeters of the preplot, plants the node, confirms tilt, moves on. A decade ago, 5-meter repeatability across hundreds of nodes was newsworthy. Today, sub-meter repeatability is the baseline for premium 4D campaigns. The progression from simple USBL to USBL+DVL+INS+LBL fusion made that possible. Behind every accurate node position, there's a chain of sensors cross-checking each other. GPS stops at the surface, but with the right combination, we still know exactly where everything is. For those working with these systems daily ... what's your biggest challenge? Drift, beam dropouts, multipath, or something else?
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