| 摘要 |
PURPOSE: A traffic light control system is provided to collect vehicle information beyond the recognition range of an antenna by providing vehicle information of a rear vehicle using a roadside device. CONSTITUTION: A roadside device(200) transmits a beacon signal to the front of a traffic light(300). The roadside device controls the traffic light according to a road situation by collecting vehicle information. A first vehicle terminal(100-1) receives a vehicle information request signal. The first vehicle terminal transmits the vehicle information to the roadside device or a front vehicle. A second vehicle terminal(100-2) transmits the vehicle information request signal to a rear vehicle. The second vehicle terminal transmits the vehicle information from the rear vehicle to the first vehicle terminal.
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