Multilane free-flow electronic toll collection system and method based on multi-beam antenna

Abstract

The invention discloses a multilane free-flow electronic toll collection system and method based on a multi-beam antenna. The multilane free-flow electronic toll collection system comprises a background system and a front end lane system, wherein the background system carries out charging processing, user service and information search; the front end lane system comprises a vehicular access communication and electronic tag positioning subsystem, a vehicle detecting and positioning subsystem, a snapshot and number plate recognition subsystem, and a lane control subsystem, wherein vehicle-mounted electronic tags are positioned through the adoption of the multi-beam antenna, orientation downlink beams are emitted to complete charging trading with the vehicle-mounted electronic tags, and real-time self-adaptation dynamic regulation is carried out on an emission area according to motion tracks of the vehicle-mounted electronic tags; the vehicle detecting and positioning subsystem detects toll area vehicle position information and triggers number plate snapshot; the snapshot and number plate recognition subsystem carries out vehicle snapshot and number plate recognition; the lane control subsystem collects and processes information outputted by the subsystems, and transmits processed data to the background system. According to the multilane free-flow electronic toll collection system and method, applicability of existing national standard ETC electronic tags in multilane free-flow electronic tool collection application on roads and city roads can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of ITS (Intelligent Transport System, intelligent transportation system), in particular to a multi-lane free-flow electronic toll collection system based on a multi-beam antenna and a working method thereof. Background technique [0002] With the continuous increase in the mileage of expressways and the continuous improvement of toll collection technology, many provinces and cities in my country have built expressway ETC (Electronic Toll Collection, Electronic Toll Collection) systems. The existing expressway ETC system adopts a single-lane mode. Vehicles equipped with on-board electronic tags need to enter the designated lane and pass through the ETC lane at a low speed (currently, the speed limit of the expressway ETC lane is 20km / h); for illegal vehicles entering the ETC lane , the lane railings are automatically intercepted and processed by manual intervention. [0003] ETC transactions are realized by ...

AI Technical Summary

Problems solved by technology

ETC consumption transactions based on IC cards lead to OBU positioning information that cannot be well adapted to the horizontal vehicle position information obtained by vehicle position detection equipment, thus making it impossible to implement effective violation inspections

Compared with single-chip vehicle-mounted electronic tags, the success rate of existing double-chip vehicle-mounted electronic tags for free-flow toll transactions is relatively low, which is caused by its product parameters and communication protocols.

[0010] Therefore, it is difficult to realize multi-lane free-flow electronic toll collection by means of existing technologies

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