About Landsub Global
Landsub Global is a distributed fiber optic sensing infrastructure provider, delivering fully in-house engineered DAS, DTS, DTSS-BOTDR and in-service fiber monitoring systems with AI pattern recognition for oil & gas, power, transportation and mining.
One team, the whole sensing chain
Landsub Global designs and manufactures distributed fiber optic sensing (DFOS) equipment — DAS (Distributed Acoustic Sensing), DTS (Distributed Temperature Sensing) and DTSS-BOTDR (Distributed Strain & Temperature Sensing) — plus specialized products and services for oil & gas, power, transportation and mining.
What does "infrastructure provider" mean in practice? It means the numbers on our datasheets are numbers we can defend in the field. Our DAS covers 160 km per dual-channel unit (86 km in typical single-channel applications) and locates vibration events to within ±2 m at a phase-noise floor of 0.03 rad/√Hz. Our DTS reads temperature to ±0.5 °C with 0.8 m spatial resolution over 30 km per channel on single-mode fiber (20 km on multimode). Our DTSS-BOTDR resolves strain to ±5με across an 8000με measurement range in one second or less. And our in-service OTDR fiber monitor watches live telecom-grade fibers to 100 km with ±1 m fault location, 7×24 online. Every one of these figures has been verified on customer assets, not only in the lab.
What we build: acoustic, temperature and strain measurement
| Product | What it measures | Key specifications |
|---|---|---|
| DAS — Distributed Acoustic Sensing | Vibration and acoustic events along the fiber | 160 km (dual channel) / 86 km single-channel application · ±2 m positioning · 0.03 rad/√Hz |
| DTS — Distributed Temperature Sensing | Continuous temperature profile | ±0.5 °C accuracy · 0.8 m spatial resolution · 30 km/channel (SM) · 20 km/channel (MM) |
| DTSS-BOTDR — Strain & Temperature | Simultaneous strain and temperature | ±5με strain accuracy · 8000με range · ≤1 s measurement |
| RFTS — In-Service OTDR Fiber Monitoring | Fiber health on live cables | 100 km range · ±1 m fault location · 7×24 online |
| AI Sentry™ — DAS/DVS AI upgrade | AI event classification on existing or new systems | ≥95% recognition accuracy (DAS) · ≥90% (DVS) |
| Pipeline Pig Tracking | Real-time pig position and speed | Live trajectory, position and speed · 3000+ km tracked to date |
Four in-house technology moats behind long-distance monitoring
Why can Landsub Global tune a system to a specific pipeline, tunnel or cable when many vendors can only ship a standard box? Because the entire sensing chain is engineered in-house — nothing in the signal path is a black box we cannot open. The optical path, the mechanical structure, the demodulation algorithms, the AI event classification and the fusion of sensing with communication traffic on the same fiber are all developed by our own engineers. This gives us four capabilities that compound:
In-house optical path
Self-developed optical design, structure and process — pulse shaping, interferometry and return-light management are tuned per application, not inherited from a reference design.
Proprietary demodulation
Gauge and optical design co-developed to reach 0.03 rad/√Hz phase sensitivity — the foundation of long range and clean event signals at distance.
AI pattern recognition
In-house image and acoustic AI models classify events — digging, vehicle movement, walking, leakage signatures — so AI Sentry™ reaches ≥95% recognition accuracy on DAS and ≥90% on DVS.
Sensing-communication fusion
One fiber core carries both communication and sensing, letting monitoring ride on existing cables without a dedicated sensing fiber — a major cost and deployment advantage.
From photons to detection decisions
A fiber optic sensing system is only as good as its weakest link, so we engineer every link in sequence:
- Optical path design — pulse shape, wavelength choice and interferometric architecture are selected for the target range, spatial resolution and measurand.
- Demodulation — phase, frequency and intensity signals are reconstructed by our own algorithms, preserving weak events at the far end of the fiber.
- AI event classification — raw traces are converted into named, actionable events with location, reducing nuisance alarms before they reach the operator.
- Field calibration — alarm thresholds and event models are tuned on the customer's actual asset: soil, terrain, traffic and interference are all different.
- Integration — outputs are delivered into SCADA, control rooms and, where required, UAV-linked patrol workflows triggered directly by DAS events.
Our journey
- 2020Team formed — began in-house development of distributed fiber optic sensing products.
- 2022Launched DAS, DTS and DTSS-BOTDR product lines with independent demodulation algorithms.
- 2024First CCUS CO₂ pipeline monitoring application; replaced a leading global vendor in a field trial.
- 202580+ intellectual property assets including granted patents; expanded into international markets.
Certified quality and measurement accuracy
Our quality, environmental, occupational health and safety, information security and IT service management systems are certified to ISO 9001, ISO 14001, ISO 45001, ISO 27001 and ISO 20000, and every product in our line carries CE conformity. For buyers, this means audited manufacturing processes, traceable test records and controlled handling of project data — not assurances we ask you to take on faith.
- ISO 9001
- ISO 14001
- ISO 45001
- ISO 27001
- ISO 20000
- CE (full product line)
How a pipeline and cable monitoring project is delivered
How does a Landsub Global project actually run? Every engagement follows the same delivery path — the same engineering team that designs the system stays responsible for how it performs.
- Step 1 — Route and scenario review. We start with a route and scenario review to understand the asset, its risks and its existing systems.
- Step 2 — Sensing design. We propose the sensing technology, fiber routing and alarm logic — including whether existing dark fiber or in-service cables can be reused through sensing-communication fusion.
- Step 3 — Deployment and commissioning. Installation, commissioning and on-site calibration follow, where our engineers tune event models against real field signatures.
- Step 4 — Operations support. After go-live, we support alarm review, model updates and system health checks for the life of the installation.
Beyond new deployments, our service model covers upgrades and specialty work. AI Sentry™ retrofits AI event classification onto existing DAS/DVS systems — including third-party hardware — lifting recognition accuracy to ≥95% (DAS) or ≥90% (DVS) without replacing the installed base. Our pig tracking service has delivered real-time pig trajectory, position and speed over a cumulative 3000+ km of pipeline. And our in-service fiber monitoring keeps live telecom and composite cables under 7×24 watch with ±1 m fault location.
Where our systems operate: monitoring use cases
- Oil & gas pipelines — third-party intrusion detection, leak early-warning and pig tracking on long-haul and spur lines, including high-sulfur and CCUS CO₂ service.
- Power cable safety — DTS fire and thermal monitoring combined with DAS intrusion detection on cable tunnels and routes.
- Transportation — structural and perimeter monitoring for railways, tunnels and bridges, including large cross-section highway tunnels.
- Mining & ports — conveyor condition and intrusion monitoring across industrial sites.
- Optical cable health — 7×24 in-service OTDR monitoring with ±1 m fault location on live networks.
- UAV-linked patrol — DAS-triggered drone inspection that sends verification flight to the exact event location.
Frequently asked questions
Who is behind Landsub Global's technology?
The entire sensing chain is engineered in-house: the optical path, the mechanical structure, the demodulation algorithms and the AI event classification are all developed by our own engineers, so specifications on the datasheet match field behavior. The core team began building distributed fiber optic sensing products in October 2020.
How accurate are the monitoring systems?
DAS localizes vibration events to within ±2 m along up to 160 km (dual channel) of fiber; DTS reads temperature to ±0.5 °C with 0.8 m spatial resolution; DTSS-BOTDR resolves strain to ±5με; and the in-service fiber monitor locates faults to ±1 m on live cables. These figures are verified on customer assets, not only in the lab.
Which quality certifications does Landsub Global hold?
Quality, environmental, occupational health and safety, information security and IT service management systems are certified to ISO 9001, ISO 14001, ISO 45001, ISO 27001 and ISO 20000, and every product in the line carries CE conformity.
Further reading
- Fiber optic sensor — the technology family our distributed sensing products belong to.
- Distributed acoustic sensing — the principle behind DAS event detection and localization.
- Distributed temperature sensing — how DTS builds continuous temperature profiles.
- Brillouin scattering — the scattering effect exploited by BOTDR strain measurement.
Last updated: September 2026
By the Landsub Global Engineering Team