The invention relates to a method and
system for preventing ETC lane
cheating. The method comprises: when a vehicle enters an antenna communication region, acquiring first
license plate information and first vehicle model information of the vehicle; when a vehicle which is provided with a vehicle-mounted unit enters the antenna communication region, acquiring second
license plate information and second vehicle model information recorded in the vehicle-mounted unit; determining whether the first
license plate information and the second license plate information are the same and whether the first vehicle model information and the second vehicle model information are the same, and if the first license plate information and the second license plate information are the same and the first vehicle model information and the second vehicle model information are the same, executing the following steps; before the vehicle passes a lane bar, determining the presence of three
cheating behaviors like a previous car goes through a
toll booth without paying, a successive car goes through the
toll booth without paying, or falsely claiming as an ETC user or arbitraging ETC cards, and if the aforementioned
cheating behaviors exist, controlling a power-driven bar and / or a snapshot camera to execute corresponding actions in order to prevent cheating vehicles from passing the ETC lane. The method and
system of the invention can effectively recognize common cheating means in ETC transaction and can deter unlawful behaviors such as evasion and avoidance of highway and bridge
toll.