Traffic Surveillance with Wireless Magnetic Sensors

  title={Traffic Surveillance with Wireless Magnetic Sensors},
  author={Sing Yiu Cheung and Sinem Coleri Ergen and Pravin Varaiya},
Wireless magnetic sensor networks offer an attractive, low-cost alternative to inductive loops, video and radar for traffic surveillance on freeways, at intersections and in parking lots. The network comprises 5” diameter sensor nodes (SN) glued on the pavement where vehicles are to be detected. The SNs send their data via radio to the “access point” (AP) on the side of the road. The AP forwards sensor data to the Traffic Management Center via GPRS or to the roadside controller. Because such… CONTINUE READING
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