New tower-based fire detection system tested.

• Author: Torres, Kristen

* Logos Technologies' hostile fire detection system, Serenity, which has until now been fastened on aerostats, has been adapted for mounted stationary use on towers.

The company moved forward with the new version of the system after a customer request, said Douglas Rombough, vice president of business development at Logos, a Fairfax, Virginia-based defense and technology company.

"The original concept was to have Serenity on aerostats, but the Army Research Lab requested mounted modifications so we segued into this new version," he said.

Serenity works off a dual-sensor system. It relies on visuals and acoustics to locate the point of origin of enemy fire. It also reduces false alarms, such as a beam of sunlight reflecting off a car window.

Serenity "picks up the flash of a weapon system and automatically knows how soon it should hear a subsequent bang based on the speed of sound," Rombough said. If the machine doesn't register a sound after it picks up a flash of light, it recognizes it as a false alarm.

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The system's range is tied to the height of the sensor, so the mounted tower versions of Serenity will have a lower detection range compared to an aerostat that has a coverage of 2,000 to 3,000 feet, said Frank Plew, Serenity project manager.

The adaptation to a stationary dual-sensor was relatively simple, he said.

"Physically, we developed new mounting kits," Plew said. "The...