The CX27QuantumX gateway module is housed in a control cabinet in the Olympiahalle lighting rostrum, together with the power supply, a UPS and the network components. From there, the measurement data is transmitted via TCP/IP to the computer center of Stadtwerke München, where there is a relevant server.
The measurement node also triggers a direct display of the load monitoring. A big set of traffic lights, clearly visible inside the Olympiahalle, indicates the loading that is reached. If the traffic lights jump to amber, this means that either the planned event load, or 98% of the maximum gantry load has been reached. If the maximum load for the structure is reached, the traffic light shows red. This is a sign to the hall inspector that stage workers must stop work immediately and that some of the load must be removed from the lighting gantries.
HBM catman®AP software runs on the server in the computer center, and is used to configure and perform load monitoring. The permissible loads for
- each measuring point,
- lighting gantry
- and main girder,
- as well as the total load,
can be specified for an event. The advance warning range, when the traffic light in the Olympiahalle changes from green to amber, can be configured here. The measurement frequency and thus also the traffic light control, is 1 Hz. For data archival, the average and the maximum value in a minute are stored in each case.
If there is an overload situation or a system failure, the system administrator is informed by e-mail and SMS. The measured data are stored and can, at the same time, be seen from any number of places, via internet.