Large-scale facilities require continuous security monitoring for remote boundaries, underground assets, and critical infrastructure where traditional systems may have limited coverage.
Fiber Optic DAS provides long-distance vibration detection through optical fibers, helping identify intrusion, digging, cutting, and abnormal activities with flexible Custom deployment options.
Key Deployment Characteristics
| Feature | Fiber Optic DAS Capability |
| Sensing Medium | Standard optical fiber cable |
| Detection Method | Distributed vibration and acoustic analysis |
| Monitoring Distance | Several kilometers with one sensing fiber |
| Installation Options | Buried cable, fence installation, pipeline monitoring, existing fiber network |
| Detection Events | Intrusion, digging, cutting, climbing, impact, abnormal vibration |
For large facilities, DAS is usually integrated with security platforms such as Video Management Systems (VMS), access control systems, and central alarm platforms.
Energy Infrastructure and Power Facilities
Power plants, substations, renewable energy sites, and transmission corridors often cover large areas where traditional security patrols cannot provide continuous monitoring.
Common security risks include:
- Unauthorized access to restricted zones
- Cable theft and cutting
- Fence climbing
- Underground cable interference
- Vehicle intrusion near equipment areas
A buried fiber optic intrusion detection system is especially suitable for protecting underground cable channels and restricted access zones. The sensing cable can detect vibration caused by excavation activities before direct damage occurs.
Typical Energy Site Deployment
| Application Area | Installation Method | Detection Target | Recommended Integration |
| Solar farms | Buried sensing cable or perimeter fence | Intrusion, cable theft, climbing | CCTV + Control Room |
| Power substations | Fence-mounted fiber sensing | Forced entry, cutting attempts | Access Control System |
| Underground cable corridors | Buried fiber optic cable | Digging, excavation, abnormal vibration | Alarm Platform |
| Transmission routes | Long-distance fiber deployment | Unauthorized access along routes | Central Monitoring Center |
Oil, Gas and Pipeline Transportation Networks
Pipeline systems require continuous monitoring across remote routes. Fiber Optic DAS detects excavation, intrusion, and external interference along pipelines, improving security and reducing inspection difficulties.
The sensing fiber can identify vibration patterns generated by:
- Excavation equipment
- Vehicles approaching pipeline areas
- Human activity near restricted zones
- Mechanical impact
- Pipeline environment changes
Fiber Optic DAS Application in Pipeline Monitoring
| Monitoring Area | DAS Deployment Method | Main Detection Events | Advantage |
| Long-distance pipelines | Fiber installed parallel with pipeline | Digging and intrusion | Continuous monitoring |
| Valve stations | Local perimeter sensing | Unauthorized access | Fast alarm response |
| Pumping facilities | Fence or buried cable installation | Forced entry | Multi-zone protection |
| Pipeline crossings | Enhanced sensing configuration | External interference | Critical point monitoring |
For long-distance pipelines, Custom fiber optic intrusion detection systems can combine buried cable detection with existing communication fiber, reducing additional infrastructure requirements.
Airports and Aviation Facilities
Airport runways, fuel storage facilities, maintenance workshops and restricted work areas need all-day monitoring. Any unauthorized entry will endanger site safety and disrupt airport daily operations.
When laid over lengthy airport borders, ordinary fence sensors tend to malfunction easily under harsh environmental disturbances.
The fiber DAS system achieves broad-area monitoring while minimizing the quantity of field equipment.
Its mainstream airport application scenarios are listed below:
- Perimeter intrusion detection
- Restricted zone protection
- Fence climbing detection
- Underground access monitoring
- Vehicle movement detection
Airport DAS Deployment Areas
| Area | Installation Type | Security Purpose |
| Outer perimeter fence | Fence-mounted fiber sensing | Detect climbing and cutting |
| Runway boundary | Buried fiber cable | Detect unauthorized approach |
| Fuel storage zone | Perimeter sensing | Protect critical assets |
| Service roads | Ground vibration monitoring | Detect abnormal vehicle access |
Customized perimeter intrusion detection systems are configurable based on the spatial layout of airports, so as to adapt to non-linear perimeters, multi-gate passageways and restricted operation areas.
Railway, Metro and Transportation Corridors
Massive transportation infrastructure consists of railway tracks, tunnels, station buildings and maintenance facilities spanning thousands of kilometers.
Various prominent risks and obstacles exist in railway security supervision, mainly including:
- Cable theft
- Unauthorized track access
- Fence damage
- Tunnel intrusion
- Equipment area entry
Fiber optic sensing is suitable because transportation routes are linear and often extend over long distances.
Railway and Transportation Deployment
| Location | Fiber Installation | Detectable Activity |
| Railway perimeter | Fence sensing cable | Climbing and forced entry |
| Trackside area | Buried fiber cable | Unauthorized approach |
| Cable tunnels | Underground sensing | Entry and abnormal movement |
| Depot areas | Perimeter detection | Theft and intrusion |
Compared with independent sensors installed every few meters, distributed sensing reduces equipment density while maintaining large-area coverage.
Data Centers and Critical Industrial Facilities
Modern data centers and industrial facilities require strict access control because equipment value and operational continuity are highly important.
Although these sites may not cover extremely large geographic areas like pipelines, their security requirements are concentrated around critical zones.
Fiber optic DAS can monitor:
- External fences
- Cable corridors
- Underground access areas
- Equipment boundaries
Industrial Facility Deployment
| Protected Area | Detection Focus | Suitable Solution |
| External boundary | Intrusion attempts | Fence intrusion detection |
| Underground cable area | Digging or interference | Buried sensing cable |
| Restricted equipment zone | Unauthorized movement | Fiber monitoring |
| Remote warehouse area | Perimeter access | Integrated alarm system |
Ports, Terminals and Large Logistics Areas
Ports and logistics terminals usually contain extensive boundaries, container storage zones, transportation channels, and restricted operational areas.
These environments face different security conditions compared with closed industrial facilities.
Common risks include:
- Unauthorized personnel entering operational zones
- Cargo theft
- Fence damage
- Vehicle movement in restricted areas
Fiber distributed acoustic sensing (DAS) proves applicable to extensive perimeter security monitoring, attributed to the flexible layout of sensing fibers along irregular and complex perimeters.
Port Security Deployment
| Area | Detection Method | Security Objective |
| Port perimeter | Fence fiber sensing | Prevent unauthorized entry |
| Container yards | Ground sensing | Detect abnormal movement |
| Access roads | Buried cable monitoring | Vehicle intrusion detection |
| Storage zones | Integrated monitoring | Asset protection |
Large ports often have complicated layouts. Custom deployment design helps match sensing zones with operational areas without affecting normal logistics activities.
Military Bases and Critical Government Facilities
Military garrisons and national critical government infrastructure necessitate high-standard perimeter security supervision, for unlawful intrusion acts are likely to induce substantial security vulnerabilities.
These sites often include:
- Large restricted boundaries
- Remote areas
- Multiple access points
- Sensitive equipment zones
Critical Facility DAS Deployment
| Site Requirement | Fiber Optic Solution |
| Long perimeter | Distributed sensing cable |
| Remote boundary | Fiber-based monitoring |
| Multiple intrusion points | Zone-based alarm analysis |
| Harsh environment | Passive fiber sensing |
For sensitive locations, DAS can operate as part of a layered security system together with cameras, access control, and command centers.
Custom Fiber Optic Distributed Acoustic Sensing Solutions
Security sensing schemes should be formulated in accordance with the unique conditions of each monitoring site.
Pipeline projects generally prioritize long-distance underground buried monitoring; airport construction projects demand multi-region perimeter defense solutions; manufacturing plants put greater emphasis on seamless integration with their original security platforms.
Customized DAS deployment solutions cover the following configurations:
- Custom sensing cable selection
- Custom installation structure
- Custom detection zone planning
- Custom alarm integration
- Custom monitoring software connection
The overall system design is formulated based on on-site environmental parameters. Fiber-optic DAS supports expandable monitoring capacity with adaptable wiring layouts to safeguard vital infrastructure.
