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an explosive atmosphere. These barriers are used in conjunction with the simple pull-cable
switches to ensure a safe use of the system in areas where standards of explosion protection
do apply. The sample shaft, however, is not one of those.
The conditions pull-cable switches recorded by the Sigfox station in this way are then
trans-mitted via the Sigfox network (a part of the Internet of Things, IoT) to the Sigfox
cloud; from there, the user(s) can access and retrieve the data and can also visualise it.
A solar generator (consisting of a solar panel, charge controller and rechargeable battery)
is used for the independent power supply of the entire monitoring unit 24 hours a day and
365 days a year.
Figure 7 shows the entire monitoring unit of the sample shaft monitoring.
4 THE USER DASHBOARD
The measuring values recording are stored in the Sigfox cloud via the global Sigfox network;
from there, they can be display on the user’s PC, laptop, tablet or Smartphone as shown in
Figure 8.
The layout of this dashboards can be freely configured and thus perfectly adapted to individual needs. Here, the following is displayed on the dashboard:
Figure 7. The entire monitoring unit at the sample shaft.
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