The State Variable Statistics feature allows collection of state variable values of control units for extended periods of time and displaying the collected data in statistical form.
Overview
The State Variable Statistics feature allows collection of state variable values of control units and creation of statistical data based on the collected information. This is especially useful in the case of sensor data retrieved from a gateway (for example through the FIM or HDM modules for the Bosch IoT Gateway Software). The collected data can be further analyzed and used for a lot of activities – investigating problems, improving software and hardware based on usage data, machine learning and so on. The State Variable Statistics uses the system database for storing all the recorded data as well as the recording requests.
Statistics could be collected for every state variable of a device control unit that is of proper type (boolean, byte, short, char, int, float, long, double).
The State Variable Statistics feature allows adding/removing statistics requests as well as retrieving the recorded data and clearing it from the database.
Recording requests can be added in three distinct ways:
Selecting a group node – this adds a recording request for this group which will handle events for all devices in the group and optionally for all descendants of the group.
Selecting a device node – this adds a recording request for a control unit belonging to this device limiting the possible control unit types to the ones provided on the device.
Selecting a control unit node – this adds a recording request for the concrete control unit.