SENSING FOR DANGER
ABSTRACT:
PICTURE THIS SCENARIO: A terrorist carefully negotiates city streets, moving ever closer to his target, an air force base on the outskirts of town. In the rear of his van, a homemade bomb containing plutonium and high explosives waits for the signal to explode. As one of the “good guys,” you’ve received information that the attack is imminent, but your sources don’t know its timing, the direction from which the vehicle will come, or what route it will take. What can you do to detect, identify, and track the van and its contents so that you can prevent the attack?
The researchers are focusing on systems for detecting and tracking threats. The systems go by many names correlated sensor networks, wide-area tracking systems, sensor or network fabrics but the concept behind them is the same. Take a number of wireless sensors (for instance, seismic, magnetic, pressure, acoustic, nuclear, or particle-counting), tie them together with a communications network, develop a scheme for fusing the data (that is, converting the data into forms easily interpreted by users), and make the system easy to deploy.
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