Alarm Strategy

The general goal when designing alarms is to count bat pulses or passes near a turbine without counting non-bat noises, such as the mechanical noise of the turbine itself.

Each individual turbine can produce noise with different characteristics, and the prominence of the noise can vary depending on where each microphone is positioned. Often this noise can bear superficial resemblance to bat echolocation calls. This means that, typically, you must tailor alarms to each individual turbine to capture nearby bat activity while excluding the noise of the turbine.

Crafting effective alarms for a specific turbine should start with installing the SMART System on the turbine and recording both nearby bat activity and the various kinds of noises the turbine creates in different weather conditions. Once you have collected sample data, you can use Kaleidoscope® Pro Sound Analysis Software to design alarms and simulate how they would have reacted to your data in real time.

Once you have tested your alarms using sample data, you can implement them on the SMART System itself. Program other devices on your control system to read the status of your alarms and use that information to prompt turbine shutdowns.