Distributed Fiber Optic Sensing Infrastructure Provider
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.
The fiber sensing product line builds core monitoring capability; specialized services deliver value — each is the foundation of the other.
Fully in-house engineered optical path, structure and demodulation algorithms covering vibration, temperature, strain and cable health — key specifications independently verified and industry-leading.
Scenario-based delivery for oil & gas, power and transportation: AI retrofit for existing systems, pipeline pig tracking, short-term monitoring and operations services.
Every specification is benchmarked against — and beyond — market averages.
Third-party intrusion and leak detection for oil & gas and power assets; rail intrusion and conveyor roller monitoring.
View DAS systemFire early-warning and temperature monitoring for power cables and linear assets.
View DTS systemStructural health monitoring for tunnels, bridges and large infrastructure.
View DTSS-BOTDR systemOnline cable health management and sub-second fault localization for operators.
View cable monitorInject in-house AI pattern recognition into existing DAS/DVS systems without replacing hardware.
View AI upgradeReal-time tracking of pigs and inline inspection tools — trajectory, position and speed.
View pig trackingSelf-engineered hardware × industry services, delivering deterministic early-warning capability.
Third-party intrusion and leak detection for long-haul pipelines.
DTS fire early-warning + DAS underground intrusion monitoring.
Rail intrusion, slope and tunnel/bridge structural monitoring.
Roller acoustic monitoring to prevent fire incidents.
Real-time cable health and precise fault localization.
DAS-triggered automated drone dispatch for intrusion and leak verification.
Perimeter security, utility tunnels, campuses — tell us your scenario.
Every number comes from field verification and on-site measurements.
Third-party intrusion and leak early-warning on a high-sulfur pipeline — replaced a leading global vendor after a multi-vendor field trial.
59.14 km China–Myanmar gas spur line; excavator, farming and manual intrusion alarms verified with 95% effective alarm rate.
First CCUS CO₂ long-haul pipeline in China with third-party intrusion and leak early-warning — a flagship reference for carbon-capture transport.
Independently developed optical path, algorithms and AI — a fully controlled supply chain.
Full-stack self-developed optical path, structure and process.
0.03 rad/√Hz sensitivity via gauge optimization + optical design.
In-house image + acoustic AI algorithms for event classification.
One fiber core carries both video streaming and acoustic sensing.
A factual comparison of the two monitoring approaches for long linear and distributed assets.
| Dimension | Conventional point sensors / periodic patrol | Distributed fiber optic sensing |
|---|---|---|
| Coverage model | Sensing only at discrete instrumented points; blind sections in between | Every meter of the route is a sensing point — up to 160 km (dual channel) from one DAS interrogator |
| Detection timing | Events are found during inspection rounds or when a point sensor trips | Continuous 24/7 acoustic and temperature measurement along the full route |
| Localization | Between the two nearest instrumented points — often hundreds of meters apart | ±2 m event localization (DAS), ±1 m fault location (cable monitor) |
| Field hardware | Powered electronics along the route, each unit a maintenance item | Passive fiber only; all electronics stay in the station interrogator |
| Environmental durability | Electronics age in dust, moisture and EMI-heavy sites | Fiber is immune to EMI and built for harsh industrial environments |
Every project follows a survey-first path, so the monitoring design is based on measured site conditions rather than assumptions.
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. Optical path, mechanical design and demodulation algorithms are all engineered internally, so specifications stay consistent between datasheet and field behavior.
One DAS interrogator covers up to 160 km (dual channel) and localizes events to within ±2 m along the fiber, while the RFTS cable monitor keeps live communication fibers under 7×24 watch across 100 km with ±1 m fault location. Because the sensing fiber is passive, coverage scales with the route — not with the number of field devices to power and maintain.
Pipeline intrusion and leak detection, power cable fire early-warning (DTS at ±0.5 °C, 0.8 m spatial resolution), tunnel and bridge structural health (DTSS-BOTDR at ±5 με), conveyor roller monitoring in mining and ports, and in-service fiber health for telecom operators. Field results on this site — 100% DAS event recognition in a multi-vendor trial, 95% effective alarm rate across 59.14 km — come from customer-verified measurements.
Submit your requirements for an industry-specific monitoring solution and product selection advice.
Independent background reading on the technologies behind our systems.
Last updated: September 2026
By the Landsub Global Engineering Team
