The RaySense Distributed Acoustic Sensing (DAS) system redefines the fiber optic intrusion detection system category by turning standard single-mode fiber cables into a high-precision, 100km continuous sensor. Mounted on the fence fabric, it works as a fiber optic fence security system: the cable itself is the sensor, with no power or electronics along the fence. While industry-standard systems often claim “AI integration” by merely performing visual classification on signal waterfalls (FFT), RaySense utilizes a proprietary Raw Signal AI engine. By analyzing the “DNA” of vibrations at the source, before data is compressed or distorted, RaySense achieves a level of threat discrimination and nuisance alarm rejection that traditional frequency-based sensors cannot match. To further bridge the gap between complex technology and field deployment, RaySense features Automated AI Calibration. This system autonomously maps your site’s specific environmental noise floor, eliminating the weeks of manual tuning typically required. The result is a truly “plug-and-play” infrastructure protection solution that offers 3 m (10 ft) detection resolution, no power in the field, and a low total cost of ownership over long perimeters.
- Up to 100km/62 miles per processing unit.
- It can be used on the fence and underground with the same cable.
- Offline AI – No Monthly fee or hidden costs.
- Proprietary Raw Signal AI
The Architecture Breakdown of the RaySense
The RaySense system layout is engineered for simplicity and extreme durability, concentrating all intelligence into a single, rack-mounted Alarm Processing Unit (APU). By utilizing standard single-mode fiber optic cable as the sensor, the system eliminates the need for power, electronics, or communication hardware along the perimeter, with no powered equipment to install or maintain along the perimeter.
Centralized Processing: The APU resides in a secure, climate-controlled server room, connecting to the perimeter via a non-sensing lead-in cable.
The Sensing Fiber: Up to 100km of fiber (50km per channel) is attached to fences or buried, transforming every meter into a virtual microphone.
Zero Field Infrastructure: No electricity or grounding is required in the field. The sensing fiber carries no current, so it is not affected by EMI, RFI or lightning-induced surges along the perimeter; the APU is installed indoors.
Virtual Zoning: The physical cable is divided into software-defined zones (sensor sections), allowing camera call-up and localized alarm triggers without changing the physical layout.
RaySense – Smart AI Perimeter Detection
Economical Long-Perimeter Protection
The RaySense fiber-optic system offers cost-effective perimeter security with a single processing unit covering up to 100 km/62 miles, with no field power or electronics required.
- Predicts the Unseen – Detects intrusion attempts like cutting, climbing, and jumping fences, even for scenarios it hasn’t been trained on.
Focused “Yes” Detection – Triggers alarms only for meaningful events, minimizing false alarms.
Easy Calibration – Simple setup tunes the AI to your infrastructure for reliable, hassle-free protection.
Innovative Solutions for Every Need
Purpose built perimeter detection for the industries where a breach costs the most.
Explore how RBtec fits yours:
Substations and Electrical Utilities
Government & Classified Networks
Here are five reasons why radar and thermal cameras don’t replace the RaySense
Radar and thermal cameras monitor what they can see. RaySense turns the entire fence line or buried fiber route into a continuous sensor, giving protection along long perimeters without leaving gaps between devices.
Radar and thermal cameras can be blocked or weakened by terrain, vegetation, buildings, parked vehicles, fence angles, or weather. RaySense detects activity directly on the fence or along the fiber path, without depending on a clear visual view.
Radar and thermal cameras may detect movement near or beyond the fence, but they do not confirm what is happening to the perimeter itself. RaySense detects direct activity on the fence or along the buried fiber path, such as cutting, climbing, lifting, digging, or tampering. That makes it a perimeter intrusion sensor, not just an area monitoring device.
Covering miles of perimeter with radar or thermal cameras usually requires many poles, power points, network connections, and maintenance. RaySense can protect long distances using passive fiber in the field, with no power required along the sensing cable.
RaySense is not only a detection sensor. The same fiber can also support communication infrastructure along the perimeter, helping connect remote areas, gates, cameras, or other field equipment. For long sites, this means the sensing cable can become part of the site’s security backbone, not just another standalone sensor.
Product Features:
Built to connect with the site’s security ecosystem
RaySense is designed to integrate with VMS platforms, alarm systems, access control, command centers, cameras, and RBtec’s Vidalert monitoring software. This helps turn fiber alarms into actionable events inside the systems operators already use.
Fence, Buried, and Hybrid Applications
The same RaySense platform can protect fence-mounted sections, buried routes, or mixed layouts, making it easier to standardize one detection architecture across complex sites. Different detection algorithms are used for fence and buried zones.
Passive sensing cable in the field
The sensing fiber does not require power, network switches, field electronics, or cabinets along the protected route. This simplifies installation, reduces exposed equipment, and lowers maintenance across remote or hard-to-access perimeters.
Software-defined zones and centralized configuration
Zones, sensitivity, alarm logic, and detection settings are configured in software instead of through physical rewiring. This makes setup faster and allows the system to be adjusted as the site layout, risk areas, or operational needs change.
No proprietary sensing cable required
RaySense works with standard single-mode fiber, making it easier to install, repair, expand, and support using familiar fiber-optic installation practices.
How RaySense Fence-Mounted Intrusion Detection Works
1. Install the sensing cable on the fence. A standard single-mode fiber optic cable (armored, loose-tube) is attached to the fence fabric along the protection line. Cable mounting, gates, corners and transitions are designed for the fence construction and the site layout. There is no power and no electronics along the fence; the fiber itself is the sensor.
2. Measure vibration along the fiber (COTDR). The Alarm Processing Unit sends laser pulses through the cable and analyzes changes in the backscattered light using Coherent Optical Time Domain Reflectometry, the principle behind Distributed Acoustic Sensing. Vibration transmitted through the fence changes the light pattern at that point on the fiber.
3. Locate and classify the event. The AI engine analyzes the vibration pattern, separates cutting, climbing and lifting from wind, rain and traffic, and reports an alarm with its location through the configured monitoring interface. Detection resolution is 3 m (10 ft) between detection points along the fiber; simultaneous disturbances are reported individually when at least 40 m (130 ft) of cable separates them. Zones and sensitivity are commissioned for local fence and weather conditions. A fence-mounted RaySense detects climbing, cutting and tampering on the fence; it does not detect a person standing near the fence without touching it. For open ground, see the RaySense LGDS buried fiber optic intrusion detection system.
