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Our unique software will start analyzing your objects

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The analysis process usually takes up to week to complete

Key Value Points

Why choose SILLE?

  • keyboard_arrow_right Coverage of the entire world
  • keyboard_arrow_right Works 24/7 in all weather conditions
  • keyboard_arrow_right Increase inspections to every 12 days
  • keyboard_arrow_right No need to stop traffic
  • keyboard_arrow_right Survey wide areas without a tripod
  • keyboard_arrow_right Subscription based service - pay per use
  • keyboard_arrow_right Systematic monitoring of large or small areas
  • keyboard_arrow_right Early warning insight for repair decision making
  • keyboard_arrow_right High accuracy measurement comparable to geodetics
  • keyboard_arrow_right Like weather forecasting for the ground beneath your feet
  • keyboard_arrow_right Applicable to all stages of construction - planning, construction, operation
  • keyboard_arrow_right Correlate locomotive and carriage movement statistics data with deformation
  • keyboard_arrow_right Measurement data analyzed to assess structural health and technical condition
FAQ

Sille

Sille provides users with regular and reliable information about ground motion across the globe. Within the application, users can view satellite data, upload their own historic renditions of data, and request Sille analysis for specific locations.

Sille partners with world-class InSAR scientists to ensure a powerful yet simple application for data analytics, comparisons, reporting and visualizing.

Why Sille?

  • Ground & infrastructure displacement measurements
  • Visualization tools
  • Interactive data exploration
  • Best practices
  • Frequent updates

Sille uses colored dots to indicate surface displacement or velocity along a designated area. Dots range from warm colors (red, orange, yellow) to cool colors (blue). Warm colors signify negative displacement, while cool colors signify positive displacement. Green areas show little to no displacement.

By using the Draw and Graph features you are able to visualize individual points and how their movement compares.

Sille draw function
Sille uses colored dots to indicate surface displacement or velocity along a designated area.

Sille measures movement of the Earth’s surface and can be applied in various industries from civil engineering to environmental studies.

  • Infrastructure monitoring
  • Earthquake or landslide sites
  • Oil/natural gas mining or landfill sites

Sille depends on the orbits of satellites to capture images of the same location at different times. Depending on your location, a satellite will cycle above your location at least every 12 days, with a possible frequency of as little as three days in areas of Europe and Canada.

FAQ

Technology

Earth Observing System synthetic aperture radar is a method of observation utilizing satellites and surface deformation monitoring technology.

Interferometric synthetic aperture radar (InSAR) is a space borne (or, alternatively, airborne) microwave imaging system that can be used to generate maps of ground deformation. Ground deformation is the movement of the Earth’s surface caused by seismic strain, landslides, and mining or landfill activities.

SAR can provide a historical analysis of ground movement that can be used for infrastructure monitoring. Acquiring frequent (bi-monthly) infrastructure displacement measurements can serve as an early warning system for possible infrastructure malfunction or failure. This allows prioritization of vehicle- and person-based inspections, thus reducing cost.

A point cloud is a set of data points in an area of measurement. Point density describes the number of points in an area of measurement. Therefore, the higher the point cloud density, the more data or information is available in the measured area. Higher point density means you will get a more detailed image because there is more information available.

Sentinel-1, carried out by the European Space Agency Copernicus Programme, is a space mission designed as a two-satellite constellation. This means that two satellites, SENTINEL-1A and SENTINEL-1B, share the same orbit – but 180 degrees apart. While one satellite can orbit the earth in 12 days, both satellites operating together offer a 6 day repeat cycle. Areas around the equator see the satellite repeat in just three days, Europe and Canada in less than three days, and Arctic areas in less than one day.

LiDAR SAR
Weather dependent (blocked by cloud coverage) Continuous coverage (see through clouds)
Extremely high-resolution data allowing for detection of forest density or minor construction flaws Observes progression of surface deformation - ideal for analyzing structural health of infrastructure and future maintenance planning
Airborne - ability to choose when and where to collect data Space borne - data collected at pace and path of satellite orbit. (SAR can also be airborne)
Predefined area of interest Monitors area in orbit path
GPS SAR
24-hour monitoring Trends over time
Defined area of interest Large scale areas (up to 10,000 km2)
Immediate need for information Long-term coverage of an area providing bi-monthly information
Requires physical presence on the ground (receiver) Ability to monitor anything without predefined location
How does it work?

The technology

Output of the application

Satellite line-of-sight

Basic displacement information provided by the service is the satellite line-of-sight (LOS), with projected to ground geometry and quality measures per measurement point, in radar geometry.

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The Data

Sentinel 1

Sentinel-1 routinely collects data in three modes: Interferometric Wide Swath (IW), Extra Wide Swath (EW) and Wave (WV). The latter two are used for marine applications, while the first is used over land.

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Methodology

SAR

The main source of information for deriving ground motion data are Synthetic Aperture Radar (SAR) data from the ESA Copernicus Sentinel-1 mission.

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History

About InSAR

Synthetic Aperture Radar Interferometry (InSAR) is the main technology for space based ground motion measurement. It has been in use for more than 25 years.

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Application

Data Delivery

This service offers analyzed data in powerful yet simple to operate visual mapping application. SILLE enables data analytics, comparison, reporting and visualizing. Data can be also integrated seamlessly in the existing railroad management system.

The Technology

Output of the Application

Basic displacement information provided by the service is the satellite line-of-sight (LOS), with projected to ground geometry and quality measures per measurement point, in radar geometry.

East-West and Up-Down deformation rates produced by combining data stemming from ascending and descending orbits. Basic displacement information data should be seen as an intermediate product, necessary in order to produce East-West and Up- Down deformation rates.

These two LOS vector components from basic displacement can be used to calculate the east-west and vertical components of movement.

East-West and Up-Down deformation products are useful for general engineers who will find them easier to interpret than LOS measurements. They will also be very useful for highlighting horizontal deformation.

The Technology

Data

Sentinel-1 routinely collects data in three modes: Interferometric Wide Swath (IW), Extra Wide Swath (EW) and Wave (WV). The latter two are used for marine applications, while the first is used over land.

IW mode is designed to be used for Interferometric Synthetic Aperture Radar (InSAR), a technique that allows the measurement of relative motion of the surface. Such motion includes movement of natural terrain as well as buildings and other infrastructure (railway) on the Earth’s surface. The InSAR processing of time series in the service will be based on using the Sentinel-1 IW mode Single Look Complex products at 5x20 (approx.) meter resolution.

Digital elevation model (DEM) data and weather information are also integrated in the system to offer accurate results.

The Technology

Methodology

The main source of information for deriving ground motion data are Synthetic Aperture Radar (SAR) data from the ESA Copernicus Sentinel-1 mission.

This mission provides full coverage of USA from at least one (many areas from two different) observation geometries (ascending or descending) every 12 days.

From these data, ground motion can be derived using InSAR time series analyses. There are many different InSAR processing concepts, and common to all is an end product consisting of a set of ground motion time series valid for specific points or pixels, with a corresponding quality measure. SILLE uses cutting edge technology and scientific findings integrated to the system.

Among our partners are the key scientists in the world of Interferometric Synthetic Aperture Radar Persistent Scatterer InSAR science.

InSAR is a technique that determines the component of movement along a vector parallel to the satellite-to-ground line of sight (LOS) vector, relative to a chosen reference point.

Each point on Europe’s surface is imaged regularly from both ascending (north going) and descending (south going) orbits. Since the Sentinel-1 satellites are side looking, the result is that the velocity of each point can be measured along two different lines of sight, one looking east and one looking west.

The Technology

History

Synthetic Aperture Radar Interferometry (InSAR) is the main technology for space based ground motion measurement. It has been in use for more than 25 years. Early applications and demonstrations using pairs of images showed the significant displacement caused by earthquakes.

In the late 1990s, a new suite of multi-image InSAR techniques were developed that revealed movements of millimeters per year. The application of these techniques was made possible by the unique archive of radar images acquired by the ERS-1 and -2 satellites beginning in 1992. These satellites acquired images in a consistent geometry as often as every 35 days.

Other civilian SAR satellites followed, including Radarsat-1 and -2, and ENVISAT, as well as a number of high-resolution commercial SAR systems.

Building on the success of many InSAR demonstration studies, a number of initiatives emerged to streamline the efforts. In particular the TerraFirma project (2003-2014), PanGeo (2011-1014); the Italian Piano Straodinario di telerilevamento Ambientale (2008-2016); as well as a number of spin-off projects building on top of TerraFirma and PanGeo, including SubCoast, EVOSS, and Lampre.

The common denominator in all these initiatives was to streamline independent activities into a unified prototype service, albeit with different target audiences. The focus was both on algorithmic and operational developments, as well as validation activities.

Nevertheless, many of these initiatives were faced with a major operation limitation due to lack of systematic source of radar images and hampered by inherent restrictions of the satellite acquisition modes.

The result was that it required several years of image acquisitions in order to obtain reliable InSAR results. This meant that the data was usually only processed one time and not regularly updated.

Now, thanks to the Copernicus programme, all the right ingredients are available for introducing and operating a radar-based service, including a free and open data policy, the long-term, predictable operations of the Sentinel-1 mission, high performance computational environments and the algorithmic know-how.

The Sentinel-1 satellites provide a unique new opportunity to provide dynamically updated ground motion datasets. It is possible to monitor hazardous processes and see the effects of remediation efforts.

News and Media

Press releases

Estonian IT company launches a precision infrastructure monitoring service

date_range April 20, 2018 person_outline estonian world

The Estonian IT company, Datel, has launched a service that allows users to remotely monitor the shifts and subsidence of infrastructure globally with a precision of up to one millimetre – thus helping prevent accidents.

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How to make infrastructures safer through satellites’ data

date_range April 2018 person_outline e-Estonia

The Estonian IT company Datel, specialized in developing geographical information systems, has announced the launch of its early warning system Sille.

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Datel Presents Large Infrastructure Early Warning System

date_range April 18, 2018 person_outline Global Financial Market Review

The Estonian IT company Datel on April 17th presented a new early warning system for large scale infrastructure, which uses satellite data to monitor minor movements in pieces of infrastructure such as bridges, railways, pipelines, harbors and mines, informs LETA/BNS.

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In Estonian

Meediakajastus

Dateli uus jälgimissüsteem mõõdab millimeetri täpsusega sildade ja muude ehitiste vajumist

date_range 17. aprill 2018 person_outline AM

Eesti IT-ettevõte Datel tutvustas täna oma uut rahvusvahelise turule suunatud e-teenust Sille, mis võimaldab lihtsalt moel infrastruktuuride vajumise või tõusmise jälgimist igal pool maailmas.

Loe lähemalt keyboard_arrow_right

USA osariik hakkas kasutama eestlaste kosmoselahendust

date_range 17. aprill 2018 person_outline Postimees

Eesti IT-ettevõte Datel sai valmis teenuse Sille, mis võimaldab täpselt jälgida kosmosest suurte objektide vajumist või tõusmist. Esimene klient on leitud juba kauges USAs.

Loe lähemalt keyboard_arrow_right

Eesti IT-firma läheb uue e-teenusega maailma vallutama

date_range 17. aprill 2018 person_outline Innovatiiv

Eesti IT-ettevõte Datel tutvustas täna oma uut rahvusvahelise turule suunatud e-teenust Sille, mis võimaldab lihtsalt moel infrastruktuuride vajumise või tõusmise jälgimist kõikjal maailmas.

Loe lähemalt keyboard_arrow_right

Datel tutvustab välisturule suunatud e-teenust

date_range 17. aprill 2018 person_outline ITuudised.ee

Täna keskpäeval tutvustab AS Datel rahvusvahelisele turule suunatud e-teenust, mis võimaldab lihtsal moel infrastruktuuride vajumise või tõusmise jälgimist kõikjal maailmas.

Loe lähemalt keyboard_arrow_right

SILLE ETV Ringvaate saates

date_range 15. märts 2018 person_outline ERR

'Kui palju kõigub Teletorn? Kas vanalinn püsib püsti nii nagu peab?'. Vaata ETV Ringvaate klippi alates 24:00

Loe lähemalt keyboard_arrow_right
Multimedia

Videos

Introduction: What is SILLE?

Watch video: Introduction: What is SILLE?

access_time 00:03:11

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How to review your SILLE analysis?

Watch video: How to review your SILLE analysis?

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Follow us on: Sille on YouTube Sille on Vimeo
Partnerships

Our Partners

European Space Agency

Visit: European Space Agency

Trusted data from the European Space Agency

Maryland pilot project

Visit: Maryland pilot project

State-wide infrastructure monitoring project

Estonian Road Administration

Visit: Estonian Road Administration

Nation-wide bridge monitoring project

About Us

Datel Group

The Partner for fast building e-society

Datel AS is one of the oldest and biggest Estonian-owned IT enterprises. It currently employs around 100 people. During its 26 years of operations, Datel has made life easier and simpler for many Estonians by creating numerous Estonian e-state services. In 2013, Datel established a subsidiary in the USA. In 2016, Datel and its subsidiary Ovela LLC created a software solution for the White House initiative ‘Opportunity Project’, which enables local authorities in the USA to develop local life.

Empowering smart communities

Active on three continents, the Datel Group empowers smart communities from the United States to Asia. Implementing brilliant ideas from the very narrow to those of an entire nation, find your story with us.

Ovela LLC

With American vision, Ovela brings Nordic GIS innovation to the United States. Ovela aims high and takes the challenge to provide advancement for governments and the private sector through next generation spatial intelligence, all in the palm of your hand. From local to global, tourism to trade, inspections and permitting to advanced GIS software, Ovela delivers high quality engineering with a friendly user experience.

  • timeline Founded: 1990
  • people Employees/Staff: 90+
  • language Web: datel.eu
  • link LinkedIn: Datel
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