What does it mean when the ETC displays license plate detection for the first time on the highway?

[DelArianna]

It is checking whether the license plate meets the standards. If the license plate does not comply, the vehicle cannot pass. Below is some relevant information about ETC: 1. Definition of ETC: The Chinese translation is electronic toll collection, which is an automatic toll collection system for highways or bridges. It uses dedicated short-range communication between an onboard electronic tag installed on the vehicle's windshield and a microwave antenna in the ETC lane of a toll station. By leveraging computer networking technology and backend bank settlement processing, vehicles can pass through highway or bridge toll stations without stopping to pay the toll. 2. Technical Principle: The ETC system employs automatic vehicle identification technology to complete wireless data communication between the vehicle and the toll station, enabling automatic vehicle recognition and the exchange of relevant toll data. It uses computer networks to process toll data, achieving a fully automatic electronic toll collection system without the need for stopping or toll booths.