Asset Administration Shell (AAS)

Our digital twin describes each sensor on your structures with the AAS, the open digital twin standard of Industry 4.0.

Understand

What is the AAS?

The Asset Administration Shell is the standardised digital representation of an asset. Defined by Plattform Industrie 4.0 and the Industrial Digital Twin Association (IDTA), it is standardised in IEC 63278.

An AAS brings together the identity of the asset, its characteristics, its documentation and its live data, in a vendor- and software-independent format.

Example

AAS of a fibre-optic sensor

https://sensytwin.com/ids/aas/capteur_fo_012

Digital nameplate

Manufacturer, product reference, serial number

Technical data

Datasheet properties: sensitivity, measuring range

Installation

Position (GPS or local reference frame), orientation, installation date

Time series

Timestamped measurements and history

The asset

At SensyTwin, each sensor installed on the structure, given a globally unique identifier and placed in the hierarchy structure > sensor system > sensor.

The administration shell

The digital container of the asset. It gathers all its information in a common, machine-readable format.

The submodels

Each aspect of the asset (identity, characteristics, installation, measurements) is described by a standardised submodel.

Why an AAS for your infrastructure?

Data that outlives software: a civil structure lasts a century, far longer than the platforms that monitor it.
No vendor lock-in: your sensor data remains usable by any AAS-compatible tool.
Simpler integration: sensor suppliers, engineering consultancies and operators share the same data model.
A complement to BIM: the IFC model describes the geometry of the structure, the AAS describes its sensors and their data over time.

Implement

Create the AAS of your sensors with SensyTwin

We build the AAS of your sensors at the same time as the digital twin of the structure.

1
Register each sensor
Scanning a sensor's QR code generates its AAS shell, linked to the structure and to its sensor system.
The sensor receives a globally unique identifier, recognised by all systems.
2
Fill in the submodels
Nameplate, data from the manufacturer's datasheet and installation data (position, orientation, installation date).
Properties are defined according to the IEC 61360 data dictionary.
3
Link the measurements
Sensor measurements, received over HTTP or MQTT, feed the time series submodel.
An alert is triggered as soon as a measurement exceeds the thresholds set in the technical data.
4
Exchange the data
The AAS are exported as AASX packages for your clients and partners.
They open them with any AAS-compatible tool, with no custom development.

Reference

Submodels used

Submodels associated with each sensor. Three of them follow the templates published by the IDTA.

Submodel	Content	Origin
Digital nameplate	Manufacturer, product reference, serial number	IDTA template
Technical data	Datasheet properties: sensitivity, measuring range	IDTA template
Installation	Position (GPS or local reference frame), orientation, installation date	SensyTwin submodel
Time series	Timestamped measurements and history	IDTA template

Standards and specifications

IEC 63278-1
AAS structure for industrial applications
IDTA part 1
Metamodel
IDTA part 3a
IEC 61360 data specification
IDTA part 5
AASX package format

Exchange format

AASX

Self-contained package that combines the sensor's AAS and its attached documents, for archiving or sending to your clients and partners.

Your structures deserve lasting data

Let us talk about describing your sensors in AAS and integrating them with your existing tools.