ETC portal roadside read-write method and reader-writer

Abstract

The invention belongs to the technical field of intelligent transportation, and particularly relates to an ETC portal roadside read-write method and a reader-writer. The ETC portal roadside read-writemethod comprises the following steps that S101, when a vehicle passes through an ETC portal roadside, a loop sensor detects the vehicle, and a central management system controls an RSU to work to send out low-frequency modulation signals to the vehicle; S102, if the vehicle does not feed back the low-frequency modulation signals, the vehicle is not provided with an OBU, and at the moment, the central management system controls a railing to be closed; S103, if all the low-frequency modulation signals of the vehicle are fed back, the vehicle is provided with the OBU, and the OBU on the vehiclecan feed back the low-frequency modulation signals at the moment; and S104, the central management system controls a license plate recognizer on the ETC portal roadside to shoot the license plate of the vehicle and transmits a shot picture to a license plate recognition system. According to the invention, vehicles with the ETC can be intercepted, the phenomenon of vehicle following fee evasion isavoided, and vehicles whose vehicle license plates do not accord with OBU data can be intercepted at the same time.

Description

technical field [0001] The invention relates to the technical field of intelligent traffic management, in particular to a method for reading and writing on the roadside of an ETC gantry and a reader. Background technique [0002] RFID (Radio Frequency Identification) is radio frequency identification. It is a non-contact automatic identification technology that automatically identifies target objects and obtains relevant data through radio frequency signals. [0003] ETC (Electronic Toll Collection, electronic non-stop toll collection system) is an advanced toll collection method that all countries in the world are vigorously admiring. The owner only needs to install the electronic tag on the car window. When the vehicle passes the toll station, the reader set up at the toll station will read and write the electronic tag of the passing vehicle, and automatically read and write the electronic tag from the pre-bound radio frequency card or bank account. After deducting the c...

AI Technical Summary

Problems solved by technology

[0009] At expressway toll stations, there is a phenomenon of following cars to evade tolls. Vehicles without ETC will follow closely behind vehicles equipped with ETC, so as to achieve the purpose of toll evasion. However, when the existing ETC system is applied, it can only To identify and charge vehicles equipped with ETC, it is impossible to process vehicles not equipped with ETC. Therefore, to effectively solve this phenomenon, we can only check the surveillance video and compare with the payment records of the payment system to judge whether the vehicle appears The phenomenon of fee evasion has certain shortcomings. At the same time, there is also the phenomenon of stealing ETC cards in the ETC system, which brings economic losses to ETC users. Therefore, the present invention proposes a method for reading and writing on the roadside of ETC gantry and a card reader

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