Dante Data Aquisition System

Distributed Data-Acquisition system

DANTE is a robust and reliable measuring system, developed to carry out interference-free measurements in electrical polluted, wet, dirty or dusty circumstances. At the moment, this system is operational at on-shore wind parks and will be deployed at offshore wind parks.

A measurement configuration can be built of one or more host-systems, and one or more front-end systems. The host- and front-end systems can communicate through a data network. In the front-end systems, instrumentation plug-in modules can be placed. These modules can be calibrated, independently from the system. The calibration data is then being stored in the plug-in module. The calibration can be performed in advance under laboratory circumstances, which is an advantage. After the plug-in modules are being inserted in the front-end, the information can be rolled out by the attached host-systems, so the configuration management of a measuring session can be guaranteed. A GPS synchronised clock assures an accurate time synchronisation of the measurement signals. The host-systems can retrieve the data through the network connection, which is based on ethernet or glass fiber and TCP/IP socket connections.

• The enclosure of the DANTE-system (Data Acquisition Network for wind Turbine Evaluation) is carried out in IP67 and provided with robust connectors.
• The system architecture is based on open standards, modulair in design, scalable, platform independent, and distributed.
• User friendly installation and configuration (plug and play).
• The design meets up with the industrial standards EN 50082, EN 61000-4-2 (electrostatic discharge test), EN 61000-4-5 (surge test) and EN 61000-4-3 (radiated RF test).
• An instrumentation rack contains at the most 16 divers types of plug in modules and at the most 32 measurement channels.
• Every channel is provides with ESD/EMC protection and contains an anti-aliasing filter.
• Sample rate: 128 samples per second per signal.

A front-end system carries out the following functions:

• Conversion of diverse types of sensor signals (analog 5B-modules, quadrature encoding, digital, RS232, RS485, Lon), through a local processor, an interface protocol can be adjusted to a client specification.
• Data-acquisition and anti-aliasing filtering per sensor signal.
• Time synchronisation by means of a central clock.
• Local storage of measurement data (flashdisk).
• Management of configuration data of the sensor data and instrumentation modules.
• Multiple client server.