Camden, N.J. ranks among the United States' most dangerous cities -- and in 2011, its police force was cut in half. However, a state-of-the-art 'tactical information' center, combined with gunshot-spotting cameras, in-cruiser GPS technology and analytics are helping the embattled city cut crime.
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Think of Wi-Fi location as indoor GPS. Wi-Fi-based positioning systems are used where GPS is inadequate due (typically) to signal blockage. Though the Wi-Fi protocol fundamentals haven't changed much in the past few years as it concerns location technology, the ecology of Wi-Fi location services have completely flipped.