Continuous pipeline monitoring
DALI uses fiber optic monitoring to detect leaks and intrusions in real time, protecting your pipeline infrastructure.
DALI is a revolutionary fiber optic monitoring system for every pipeline
Powered by Distributed Acoustic Sensing (DAS) technology, DALI accurately detects leaks and intrusions in pipelines. This helps utility companies and industrial facilities to reduce Non-Renue Water (NRW) and extend the service life of their assets. Thanks to its high fiber capacity, DALI can be used simultaneously to create your own fiber network.
DALI in detail
Here’s why DALI is the best choice
for protecting your pipelines
Swift installation
DALI is installed without interrupting pipeline service. It’s also specifically designed for easy entry and exit of pipelines and bypassing valves.
24/7 real time monitoring
Your pipeline doesn't rest, and neither does DALI. Monitor performance 24/7 for optimal asset management and peace of mind.
Locate leaks with 5 m accuracy
DALI delivers precision. It automatically pinpoints leaks and intrusions in your pipelines with a resolution of 5 m.
All pipeline types, any pipe material
DALI can monitor all types of pipelines in any material. From steel water mains to plastic industrial pipelines, and more.
Drinking water approved
All DALI components and materials have been tested and approved for drinking water applications.
Improve asset management
DALI helps you reduce the risk of major pipe bursts and extend the service life of aging pipelines. As a result, you can plan maintenance more efficiently.
Unlock the full potential of fiber
DALI needs one optical fiber for monitoring, which means other available fibers can be used for connecting and (remotely) controlling network assets such as valves and sensors. The fibers can also be used for creating a data communication network or turning a water pipeline into a fiber backbone in collaboration with telecom operators.
From fiber optic cable to monitoring
Here’s how DALI takes full advantage of fiber optic technology with Distributed Acoustic Sensing (DAS).
Fiber optic cable is inserted in the pipeline
A fiber optic cable is installed inside the pipeline, acting as a string of thousands of acoustic sensors along the length of the pipeline.
The Distributed Acoustic Sensor (DAS) is connected
The Distributed Acoustic Sensor, connected to one end of the fiber, uses a laser to send short pulses of light along the fiber. This creates a unique pattern of reflections. Vibrations from the environment disturb this reflection pattern in the pipeline. These optical signals return to the DAS system for analysis.
24/7 monitoring and automatic alerts
Using advanced signal processing and machine learning software, DALI accurately detects events like leaks and intrusions. A real-time online dashboard displays pipeline status, alarms, and sends notifications (e-mail, SMS or SCADA) to the DALI user.
The DAS (Distributed Acoustic Sensor) that is at the heart of DALI detects any sounds or acoustic vibrations on the cable, from sub-Hz to several kHz (kilohertz). It registers any sound, including leaks, pumps, nearby digging activity, or unauthorized intrusions on the pipe. Advanced AI-based signal processing algorithms then filter out any irrelevant signals and raise an alarm in case of a leak or other important anomaly.
None. The entire DALI system can be installed on a live pipeline, without service interruptions. Thanks to our unique installation system, the fiber optic cable can be inserted, pulled, and extracted from the pipeline while the pipeline remains operational.
A single DAS can cover up to 70 km of pipeline. If you place the DAS in a central location and use an optical switch, you can even monitor several times that distance. This makes DALI ideally suited for monitoring long, critical trunk mains. The fiber optic cable is installed in shorter reel lengths (facilitating installation and maintenance) and then spliced together into one continuous fiber link.
Yes. The DALI cable contains 12 or even 144 fibers, of which only 1 is needed for the monitoring. The other fibers can be used to create an internal communication network, or even be leased to telecom companies that are developing a fiber backbone.