Black Box AlertWerks AW3000 User Manual page 40

CHAPTER 11: TIPS AND TRICKS
11.1.6 SD CARD CAUTION
CAUTION: Do not plug the sd card into a Windows(C) PC. Doing so will corrupt the image, and you will need to order
a new prepared SD Card from your Black Box representative.
11.1.7 CHANGING THE DATABASE TO MY OWN DATABASE OR HOW TO DO REDUNDANCY AND
LORAWAN WIDE AREA NETWORKS
The settings menu allows you to change the database in its location. That allows you to use a database on your servers. It
also allows you to build up a large LoRaWAN
For transfering the database the first time, you need to use an user account of your database with CREATE TABLE and
DROP TABLE access rights. The database needs to be named LoRa and be created in advance. After first creation,
user rights without CREATE TABLE and DROP TABLE are acceptable, but they are needed for the AW3000 Restore
functionality.
If you configure other AW3000 units with the same SQL database, all units work with the same information. You may
have noticed small asterisk after the index numbers on the Sensors page. As long as you are only running one AW3000
unit, that asterisk appears for every physical and virtual sensor. This does not occur when you are running multiple
AW3000 units with one common database.
The asterisk shows if the current unit you are viewing the webinterface from owns that physical or virtual sensor.
Ownership can, may, and will change with more AW3000 units.
For a virtual sensor, that unit has ownership of the sensor where it was configured. If that unit could not keep the
intervals (because it is offline or too busy) another AW3000 unit may take ownership.
For a physical sensor that unit has ownership where it was best received. If it is later better received by another AW3000
unit, ownership may change.
All actions being setup are executed by the AW3000 unit having sensor ownership. That way the system balances itself
and does the redundancy work for you.
An appropriate network needs to be available to connect all units to your central database. You need to set up virtual
sensors in a way that all AW3000 units can execute them.
By checking the Settings page, you have an overview for your AW3000 domain. All IDs are listed and when they last time
did something.
NOTES:
The port is fixed to 3306, and the database name needs to be LoRa. This part is not changeable.
•
If you need to revert to defaults, remove the file /home/pi/sql.conf, and reboot AW3000 to return to SQL
•
connection information defaults.
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AW3000 infrastructure with redundancy.
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