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Nexus Observatory

Site twins: a laser scanner sweeping a compound and the twin assembling from the scan. The loop, step by step: 1. A real mast beside its drawn twin. 2. A scanner captures the real site. 3. Each reading is stamped with time and place. 4. The scan is signed and registered. 5. The cloud reaches the twin builder. 6. The relay forwards sealed packets untouched. 7. The edge verifies every signature first. 8. The twin aligns itself to the real site. 9. Only a confirmed result leaves the edge. 10. Drawings and the twin now agree. 11. The alert arrives with its evidence attached. 12. A planner tests a new antenna in the twin. 13. Instruments confirm the response took effect. 14. Record, proof and action are archived together. 15. Everything settles back to idle.

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A real mast beside its drawn twin

Nexus Observatory

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Digital twins and simulation

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Site twins
The site in 3D, measured to scale.

Site twins, inside Digital twins and simulation: city and site models, 3D Tiles and scene layers, BIM and asset information, indoor and underground models. Every item is traced to its specification, from OGC CityGML 3.0 Conceptual Model to OGC 3D Tiles 1.1 (Community Standard), and runs on the open Observatory Protocol.

Plan with usArchitectureThe protocol
Technologies
4
At the frontier
0
Protocol functions
3 of 12
Industries served
9

At a glance

BIM and asset information

Building and infrastructure models and information management through design, build and operation. In site twins, part of Digital twins and simulation, the 3D, BIM and digital twins layer holds BIM and asset information, drawn against ISO 16739-1 and ISO 19650-1.

The problem

The site in 3D, measured to scale

Plans made on sketches meet surprises on the ground. Site twins from drone and ground surveys give a measured, dated model of the site, so masts, cables and access are planned on the real ground. The reference frames, formats, services, analysis methods, machine learning and 3D models that turn observations into located, queryable and decision-ready geographic information.

Key facts

Specification
ISO 16739-1 (IFC) · ISO 19650-1 (information management using BIM)
Specification
OGC IndoorGML · OGC Model for Underground Data Definition and Integration (MUDDI)
Specification
OGC 3D Tiles 1.1 (Community Standard) · OGC Indexed 3D Scene Layer (I3S) Community Standard

Components

  • Pole-mounted edge gateway node
  • Radar stream gauge on a road bridge
  • Automatic weather station (AWS) to WMO siting practice
  • Groundwater monitoring well
  • Water-quality monitoring station
  • Private LTE mast on a solar skid
  • "AI tower in a box"
  • Data hall row pair with cold-aisle containment

Interfaces

Instruments
SDI-12 · RS-485 / Modbus RTU · 4–20 mA
Radio
Ethernet · LTE-M / NB-IoT · LoRaWAN
Time and position
GNSS 1PPS
Security
TPM 2.0
Publishing
MQTT

Where it works

  • Indoor and underground models

In the story below

  1. The system, part by part
  2. Assembly
  3. Installation
  4. Deployment
  5. Connections
  6. Operation
  7. Failure and recovery
  8. Scale and federation
  9. What you get

Scenes · 6

Next steps

Plan a deploymentOpen the Field Deployment StudioSee Digital twins and simulationTalk to sales

  1. Digital twins and simulation · Site twins

    The site in 3D, measured to scale

    Plans made on sketches meet surprises on the ground. Site twins from drone and ground surveys give a measured, dated model of the site, so masts, cables and access are planned on the real ground. The reference frames, formats, services, analysis methods, machine learning and 3D models that turn observations into located, queryable and decision-ready geographic information.

  2. 3D, BIM and digital twins

    BIM and asset information

    Building and infrastructure models and information management through design, build and operation. In site twins, part of Digital twins and simulation, the 3D, BIM and digital twins layer holds BIM and asset information, drawn against ISO 16739-1 and ISO 19650-1.

    Specification
    ISO 16739-1 (IFC) · ISO 19650-1 (information management using BIM)

  3. 3D, BIM and digital twins

    Indoor and underground models

    Indoor spaces and subsurface utilities for shelters, plant rooms and tunnels. In site twins, part of Digital twins and simulation, the 3D, BIM and digital twins layer holds indoor and underground models, drawn against OGC IndoorGML and OGC Model for Underground Data Definition and Integration.

    Specification
    OGC IndoorGML · OGC Model for Underground Data Definition and Integration (MUDDI)

  4. 3D, BIM and digital twins

    3D Tiles and scene layers

    Streaming of massive meshes, point clouds and models into web and desktop viewers. In site twins, part of Digital twins and simulation, the 3D, BIM and digital twins layer holds 3D Tiles and scene layers, drawn against OGC 3D Tiles 1.1 and OGC Indexed 3D Scene Layer Community Standard.

    Specification
    OGC 3D Tiles 1.1 (Community Standard) · OGC Indexed 3D Scene Layer (I3S) Community Standard

  5. What you get

    Studies and twins, under contract

    Simulation methods with worked examples and open terrain and grid layers are public. Drone survey and 3D site twins, network planning studies and scenario studies are contracted. Studies are priced per site and per scenario, and the models remain yours after delivery.

    Talk to sales

  6. Next step

    Site twins, planned with you

    Tell us the sites, the systems site twins must work with and the outcome you need, with a map or a list of addresses if you have one. An engineer replies with a survey proposal, a design and a scope for site twins, and the plan grows from one site to the network you need.

    Plan a deploymentOpen the Field Deployment StudioSee Digital twins and simulation

01What it is

3D, BIM and digital twins.

The reference frames, formats, services, analysis methods, machine learning and 3D models that turn observations into located, queryable and decision-ready geographic information. Each technology below carries what it is, what we do with it, and the standard it is drawn against.

GIS, maps and GeoAI

City and site models

Semantic 3D models of buildings, terrain and infrastructure at defined levels of detail.

We design and integrate.

OGC CityGML 3.0 Conceptual Model

GIS, maps and GeoAI

3D Tiles and scene layers

Streaming of massive meshes, point clouds and models into web and desktop viewers.

We design, integrate and operate.

OGC 3D Tiles 1.1 (Community Standard) · OGC Indexed 3D Scene Layer (I3S) Community Standard

GIS, maps and GeoAI

BIM and asset information

Building and infrastructure models and information management through design, build and operation.

We design and integrate.

ISO 16739-1 (IFC) · ISO 19650-1 (information management using BIM)

GIS, maps and GeoAI

Indoor and underground models

Indoor spaces and subsurface utilities for shelters, plant rooms and tunnels.

We integrate.

OGC IndoorGML · OGC Model for Underground Data Definition and Integration (MUDDI)

02Architecture

Where it sits, and what it speaks.

Site twins draws on the spectrum below; the highlighted layers carry this area, and the protocol functions it speaks are marked.

Reference systems and geodesy

7

Vector, raster and array formats

10

Tiling, maps and visual services

7

APIs, catalogues and discrete global grids

8

Spatial analysis and siting

10

GeoAI

10

3D, BIM and digital twins

8

Metadata, quality and publication

5

Platforms and orbits

8

Optical, spectral and thermal sensors

8

Radar, lidar and microwave sensors

10

Processing levels and analysis-ready data

9

Calibration and validation

8

Tasking, ground segment and access

9

Data cubes, analysis and archives

7

Frontier and research

8

01Join Identity, attestation quote, signed policy.

02Admit Admitted for a stated scope, nothing wider.

03Describe What, where, how and by whom, with calibration.

04Time One clock across the grid, with its error bound.

05Observe Every value with quality and provenance.

06Qualify Tested against the specification, state on record.

07Federate Signed exchange across grids and trust domains.

08Orchestrate Software and configuration by signed plan.

09Correct A correction marks what depends on it and publishes a new version.

10Exchange Products reach people and applications through versioned interfaces.

11Prove Signed proof receipts that an independent verifier can check.

12Exit and decommission An open exit path, and a record that closes.

03On the grid

The ground, measured before it is modelled.

Real elevation, line of sight, an orbit swath and a GeoAI pass, each an interactive explainer on open terrain data with its source shown.

Line of sight

A 30 m mast against the terrain.

Relief

Terrarium-encoded DEM, contours by marching squares.

Hillshade and slope

One gradient, a sun you can move.

Geodesic grid

Stations counted into 10,242 cells.

04In the field

Where this runs, sector by sector.

Deployment scenarios from the sector research that rely on site twins.

Development and humanitarian

Displacement-site connectivity and sensing

Point-to-multipoint wireless, satellite backhaul, solar and water-point sensors with protection safeguards.Environment and climate

Methane fenceline and site-level continuous monitoring

Regulatory cadences in the EU and reporting levels in voluntary frameworks.Agriculture

Farm or cooperative agromet network with crop models

Compact stations and soil probes feeding irrigation, disease and frost models.

05Open and enterprise

Open by default. Enterprise by contract.

The open counterpart lives on the main site for anyone to read and run. The enterprise service is designed, deployed and operated with you, under contract.

Open, on the main site

  • Simulation methods with worked examples
  • Open terrain and grid layers

Enterprise, on this site

  • Drone survey and 3D site twins
  • Network planning studies
  • Scenario studies

06The rest of the line

Digital twins and simulation, area by area.

Digital twins and simulation

Network twins

Coverage, capacity, power and timing, simulated.Digital twins and simulation

Earth twins

Terrain, hydrology and atmosphere, on live observations.Digital twins and simulation

Scenario simulation

Floods, heat, load and failure, run before they happen.Digital twins and simulation

Planning

From the twin to a plan you can tender.

Bring us the site.

Survey, design, deployment and operation for site twins. The form names who receives your details.

Talk to usAsk for a quote

More presentations

See it from every side.

Each opens as a full-screen presentation: deeper pages on the same subject, explainers, stories, guided tours of the places, network scenes and the observatories that came before.

All presentations for this page

In depth

Use case Utility grid-edge private LTE and wildfire weatherUse case Methane fenceline observatoryISIC section · ISIC E Water supply; sewerage, waste management and remediation activitiesUse case Hybrid air-quality observatory

Explainers

Explainer · Environment and climate Environment and climate — SectorsMethane fencelines, acoustic biodiversity grids, flux towers, river sondes and smoke networks: an interactive explainer with the method behind every number.Explainer · Industrial IndustrialBlast vibration at the pit, fire weather at the grid edge, methane at the fenceline and tailings movement from GNSS.
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The site in 3D, measured to scale.

Site twins, inside Digital twins and simulation: city and site models, 3D Tiles and scene layers, BIM and asset information, indoor and underground models. Every item is traced to its specification, from OGC CityGML 3.0 Conceptual Model to OGC 3D Tiles 1.1 (Community Standard), and runs on the open Observatory Protocol.

false

BIM and asset information

Building and infrastructure models and information management through design, build and operation. In site twins, part of Digital twins and simulation, the 3D, BIM and digital twins layer holds BIM and asset information, drawn against ISO 16739-1 and ISO 19650-1.

false

The site in 3D, measured to scale

Plans made on sketches meet surprises on the ground. Site twins from drone and ground surveys give a measured, dated model of the site, so masts, cables and access are planned on the real ground. The reference frames, formats, services, analysis methods, machine learning and 3D models that turn observations into located, queryable and decision-ready geographic information.

false

Specification
ISO 16739-1 (IFC) · ISO 19650-1 (information management using BIM)
Specification
OGC IndoorGML · OGC Model for Underground Data Definition and Integration (MUDDI)
Specification
OGC 3D Tiles 1.1 (Community Standard) · OGC Indexed 3D Scene Layer (I3S) Community Standard

false

  • Pole-mounted edge gateway node
  • Radar stream gauge on a road bridge
  • Automatic weather station (AWS) to WMO siting practice
  • Groundwater monitoring well
  • Water-quality monitoring station
  • Private LTE mast on a solar skid
  • "AI tower in a box"
  • Data hall row pair with cold-aisle containment

false

false
SDI-12 · RS-485 / Modbus RTU · 4–20 mA
false
Ethernet · LTE-M / NB-IoT · LoRaWAN
false
GNSS 1PPS
false
TPM 2.0
false
MQTT

false

  • Indoor and underground models

false

  1. false
  2. false
  3. false
  4. false
  5. false
  6. false
  7. false
  8. false
  9. false

false · 6

false

Plan a deploymentOpen the Field Deployment StudioSee Digital twins and simulationTalk to sales
01What it is

02Architecture

Where it sits, and what it speaks.

03On the grid

04In the field

Where this runs, sector by sector.

05Open and enterprise

Open by default. Enterprise by contract.

The open counterpart lives on the main site for anyone to read and run. The enterprise service is designed, deployed and operated with you, under contract.

Open, on the main site
    Enterprise, on this site
      06The rest of the line

      Bring us the site.

      Talk to us