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Team 2 min read

Mobapi.SPACE: a diesel genset monitored during an Ariane 5 launch.

Our Mobapi.SPACE demonstrator monitored a diesel genset at the Guiana Space Centre during an Ariane 5 launch. A Mobapi.BOX has been collecting its data since March. We checked and analysed it with the CNES team in charge of the project. The project ends today, 30 April.

Ariane 5 seen from its base, looking up: the central core and two white boosters bearing the ESA and CNES logos, under a cloudy sky.
Guiana Space Centre, Kourou.

Mobapi.SPACE follows on from ArianeGroup’s Start-up Challenge, in which we took part in February 2020. The project first focused on the Ariane 6 buildings. The demonstrator itself was built with CNES, on thermal power-generation equipment: a diesel genset. For CNES, it is a proof of concept: showing that such monitoring is feasible, and useful.

What we connected.

CNES installed a data acquisition gateway on the genset, and our Mobapi.BOX connects to this gateway, over Modbus TCP. The gateway provides the voltages, the currents, the power, the frequency, the engine speed, the energy produced, and a series of statuses and faults. The BOX sends this data to our platform, and Mobapi.EYE displays it. We began integration testing in November 2022, and data collection on site in March 2023.

Three beige enclosures lined up behind a green gate and fence. On each, a railed platform, a large grey cylinder lying on its side and an elbowed, copper-coloured exhaust stack. Ladders lean against the enclosures. Behind them, the forest.
The diesel genset monitored by the Mobapi.SPACE demonstrator, at the Guiana Space Centre.

The day of a launch.

The demonstrator recorded the genset’s energy output during an Ariane 5 launch. A few days later, we held a review meeting with the CNES team in charge of the project. There, we checked and analysed this data. For these tests, we adapted Mobapi.EYE: the main menu follows the operational view of the installation, and CNES users have their own access.

What the project leaves us.

Mobapi.SPACE also changed our platform. We completely rebuilt our visualisation tool, and gave it a name: Mobapi.EYE. We added to it data entry for rounds and logbooks, which works offline and syncs as soon as the network returns. We also designed an architecture that installs on the operator’s servers. In the field, the genset is fitted with a Mobapi.BOX.

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