用 Discoverable 藍牙裝置的資訊分析車流狀況...

前幾個禮拜在 Slashdot 上看到政府單位花了 54 萬美金建立藍牙監控網路,利用這些資訊可以分析出車流狀況:「Connecting To Unsecured Bluetooth Car Systems To Monitor Traffic Flow」,引用的報導在:「Bluetooth can help local traffic flow」。

有 3% 到 5% 的車流會有 Discoverable 模式的藍牙裝置,偵測這些 MAC address,就能夠判斷出車子行經的時間點與路線。

不過監控完後能幹什麼啊?我又想到 NSA 了...

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One Response to 用 Discoverable 藍牙裝置的資訊分析車流狀況...

  1. pesty says:

    可以算平均車速, 不賴!

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