Industry Solutions
Self-engineered hardware × industry services, delivering deterministic early-warning across six industries.
Industry solutions: pipeline, power and conveyor monitoring
Self-engineered hardware × industry services, delivering deterministic early-warning — every solution field-verified by major operators.
Oil & Gas Pipelines
Long-haul pipelines cross farmland, mountains and populated areas; third-party damage is hard to prevent. What operators need is a long-range, low-false-alarm, measurable warning system — not stacked equipment. DAS (160 km dual channel) + DTS cover intrusion and leak detection, with drone/camera verification and pig-tracking extension.
Proven: 95% effective alarm rate on a 59.14 km China–Myanmar line; first CCUS CO₂ long-haul pipeline warning system; first place in PetroChina Southwest centralized procurement.
View solutionUAV Pipeline Inspection
Scheduled patrols leave blind spots; sensing alone leaves alarms unverified. In this solution the drone flies only when it matters: DAS detects intrusion or leak events with meter-level coordinates, and the nearest UAV is dispatched automatically for live visual verification, remote deterrence and evidence recording — a closed loop from detection to response.
Proven: Built on the same field-verified DAS base — 99.32% AI event recognition and 95% effective alarm rate on a 59.14 km China–Myanmar line; works with existing corridors via the AI Sentry™ upgrade path.
View solutionPower Cable Safety
Power cables are widespread and deep-buried; overheating and third-party construction are the two main causes of outages. Point sensing can't cover the whole line, and manual patrol can't watch around the clock. DTS (±0.5 °C, 0.8 m, 50 °C/min) delivers full-line temperature monitoring and fire early warning; DAS adds third-party construction warning along cable corridors.
Proven: Temperature accuracy and response sensitivity both beat the industry average (±1 °C, 30–40 °C/min); one fiber covers an entire cable corridor with dual temperature + intrusion warning.
View solutionTransportation
Rail intrusion, slope rockfall and slow structural deformation are hard to catch by manual inspection, and costly once they become accidents. Operators need continuous, online, high-precision structural health monitoring. DAS identifies rail intrusion and slope movement; DTSS-BOTDR (±5 με, ≤1 s) monitors tunnel and bridge strain.
Proven: Structural health monitoring for the largest cross-section highway tunnel at the time of construction, with continuous DTSS-BOTDR data.
View solutionMining & Port Conveyors
Conveyors are the artery of mining and port bulk transport; thousands of rollers run in harsh conditions, and a seized roller can tear the belt or start a fire. DAS listens to roller acoustics and localizes faults in real time; DTS adds temperature cross-check — detecting faults before ignition.
Proven: DAS 160 km (dual channel) with industry-leading listening points covers an entire conveyor corridor; roller faults move from periodic inspection to real-time localization.
View solutionIn-Service OTDR Fiber Monitoring (RFTS)
Owner-agnostic — carrier backbones, transport and energy private networks, campus and factory cable: any scenario needing data-communication quality and real-time fiber health visibility. RFTS delivers 100 km range, ±1 m fault location, 24/7 automatic monitoring, upgrading O&M from repair to prevention.
Proven: DICT partner in a leading telecom operator's ecosystem, integrated into carrier-grade services; adapts to transport, power and petrochemical private networks.
View solutionCustom Solutions
Perimeter, tunnels, campuses — tell us your scenario.
Installation and deployment: how a typical deployment works
From route survey to accepted handover — one fiber line instead of thousands of point sensors.
- Step 1 — Site survey and route assessment. Engineers walk the asset with the operator: route length, terrain, existing fiber and duct resources, power availability at station points, and the event classes that actually threaten the line — excavation, vehicles, farming, climbing or belt faults. The output is a monitoring architecture matched to the route, not a generic kit.
- Step 2 — Sensing cable selection. Where a usable spare fiber already runs along the asset, it is tested and reused; otherwise a sensing cable is selected for the environment — armoured for direct burial, temperature-rated for conveyor or cable-tunnel service — so the fiber itself becomes the continuous sensor.
- Step 3 — Equipment installation and commissioning. Interrogator units are installed at station ends and the optical path is commissioned: one DAS host covers up to 160 km (dual channel), with DTS or DTSS-BOTDR added where temperature or strain matters. No electronics are distributed along the line.
- Step 4 — AI model calibration. The AI event models are trained on the site's own signatures — soil, traffic, machinery and weather — so alarms reflect real event classes on that route instead of laboratory assumptions. This calibration step is what keeps the effective alarm rate high in service.
- Step 5 — Acceptance and integration. The system is verified against the operator's own test protocol — every alarm checked against ground truth — then integrated with control rooms, cameras, drones or UAV dispatch for a closed loop from detection to response.
Conventional point sensors vs distributed fiber monitoring
A factual comparison against conventional point-based sensors and periodic manual patrol — no rankings, only operating characteristics.
| Dimension | Conventional point-based sensors | Periodic manual patrol | Distributed fiber optic monitoring |
|---|---|---|---|
| Coverage | Sensing only at discrete instrumented points; long unmonitored gaps in between | Sampled during inspection rounds; blind spots between visits | Every meter of the route, 24/7 — up to 160 km per dual-channel DAS host |
| Response time | Only when an event reaches the sensor location | Often after visible damage, smoke or third-party report | Continuous listening with meter-level event localization (±2 m on DAS) |
| In-service operation | Field electronics to power, calibrate and maintain along the line | Recurring patrol cost that grows with route length | Passive fiber in the field; all electronics stay at station ends, including 7×24 in-service fiber monitoring (RFTS) |
| Lifespan | Electronic sensors age with dust, moisture, EMI and corrosion | Depends on staffing continuity and access conditions | Telecom-grade passive fiber designed for decades of service in harsh environments |
Detection accuracy: how alarm quality is verified
Accuracy is earned per route, not claimed in a brochure.
Across industries, the same verification discipline applies before a solution is declared operational:
- Ground-truth acceptance. At handover, alarms are checked one by one against the operator's own test protocol — real excavation, real vehicles, real roller faults — before the effective alarm rate is accepted.
- Site-calibrated AI. In-house AI recognition achieved a 99.32% objective recognition rate in a national AI competition, and the AI Sentry™ upgrade lifts existing DAS systems to ≥95% (DAS) and DVS to ≥90% recognition accuracy in service.
- Field-verified baselines. Published field figures — 95% effective alarm rate on a 59.14 km China–Myanmar line, 100% DAS event recognition in a multi-vendor trial on a high-sulfur gas pipeline — come from customer-verified measurements.
Long-distance monitoring architecture: one fiber, one interrogator
Why architecture, not sensor count, decides the economics of long assets.
Conventional schemes scale by adding devices: more point sensors, more patrol hours, more field electronics to power and maintain. A distributed fiber architecture scales differently — one DAS interrogator at a station end listens along up to 160 km (dual channel) of fiber, with every meter of the route acting as the sensor. Because the field side is passive fiber, adding coverage means adding fiber distance, not field hardware. Temperature (DTS), strain (DTSS-BOTDR) and cable-health (RFTS) dimensions ride on the same architectural pattern, so a route can combine acoustic, thermal and structural monitoring without multiplying field equipment.
Frequently asked questions
How much route can one system cover?
One DAS interrogator covers up to 160 km in dual-channel configuration (86 km in single-channel applications) and localizes events to within ±2 m along the fiber. Because the sensing fiber is passive, coverage scales with route length rather than with the number of installed devices — a single station-end unit can supervise an entire linear asset.
How do you keep the alarm rate trustworthy?
Alarm quality comes from AI event classification calibrated on each site's own signatures. Our in-house AI recognition achieved a 99.32% objective recognition rate in a national AI competition, and the AI Sentry™ upgrade raises existing DAS systems to ≥95% (DAS) and DVS systems to ≥90% recognition accuracy in service — every published field figure is verified alarm-by-alarm on the customer's asset.
Which sensing dimension fits which risk?
Vibration and acoustic threats — intrusion, digging, roller faults — call for DAS; heat and fire risk calls for DTS (±0.5 °C accuracy, 0.8 m spatial resolution); structural strain calls for DTSS-BOTDR (±5 με, ≤1 s measurement); and live communication cables call for the RFTS fiber monitor with 100 km range and ±1 m fault location. One route can combine several dimensions on the same fiber.
Further reading
- Distributed acoustic sensing — the acoustic detection principle shared by most solutions on this page.
- Distributed temperature sensing — the temperature measurement principle behind fire early-warning.
- Fiber optic sensor — an overview of distributed fiber sensing architectures.
- Pipeline transport — the operating context of the pipeline solutions described above.
Last updated: September 2026
By the Landsub Global Engineering Team
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