Monday, August 31, 2009

Siren Controller

The first off-line test of the Weather Message Siren Controller was completed today in Lee County Alabama. The Weather Message Siren Controller has the ability to activate sirens based on polygon warnings. It can activate individual sirens or groups of sirens based on their geographical relationship to the polygon.

The first test was a success. The software selected the correct sirens to activate based on the received polygon. It also selected and sent the correct activation codes that control the sound that the sirens produce.

The sirens in Lee County can be activated using DTMF codes. An interface was developed to communicate with the Motron Electronics TC1/MX, http://www.motron.com/ , DTMF controller. The DTMF controller interfaces to a VHF or UHF radio for communication with the sirens. The software can also interface with the Zetron Model 15P, http://www.zetron.com/, multi-format encoder.

I will be going to Lee County later this week to participate in the first on-line (on-the-air) test. Tom Moore, Lee County EMA's EMWIN Coordinator, encouraged me to develop this application.

This first version will be enhanced with additional capability. I will be adding a number of additional features that will make the siren controller a first class application.

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