I was approached by local volunteer fire departments to program an alarm converter. This was necessary because many of their members work at a factory in which they don’t have good reception with their pagers and thus are missing emergencies.
The alarm converter is a daemon running on a Linux computer. It listens for alarm messages from a pager that is connected to the computer via a serial link. It analyzes the messages to identify the addressed fire department and forwards them via the companies internal email and telephone system to the workers DECT phones.
A database is used to store the configuration and logs. They can be accessed and edited via a web interface.
- Linux daemon
- gets messages from pager
- forwards them as email (to DECT phones)
- web interface for administration