Libelium Waspmote Smart Parking v2, Technical Manual

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Customer Server
Figure : Database table example
Once data is stored on the database, you can use any compatible tool to query the database and develop your own
data analysis and visualization. This task belongs entirely to the customer or system integrator.
Figure : Example of database visualization using Grafana (basic open-source application)
7.7. Modifying the Customer Server
Maybe you want to modify the Customer Server to match your requirements, this section describes the best way
to do it.
7.7.1. Extracting data from the Customer Server
Every time a frame is received by the Customer Server, an event is created. You can take advantage
of this event to send the pased data to any external service. To do this, you have to edit the fi le
“ src/app/Listeners/FrameListener.php ” . This fi le receives the data parsed in the variable “ $event->frame ” . This
variable contains 4 objects: input (with the frame received parsed), lw (with the information sent by the Network
Server), node (with information about the node) and output (with the downlink frame enqueued on the service, if
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