| 摘要 |
<p>The radio beacon (1) has a transceiver (6) which is equipped for packet-radio communication (3) with on-board-unit (4) of passing vehicle (5). A camera (10) is formed for receiving an image of a passing object. A control unit (8) stands in connection with the transceiver and the camera. The control unit is formed to measure multiple data packets in connection with the transceiver. The data packets are received by a determined on-board unit per time unit.</p> |
