Main/standby ETC track system with variable transaction scopes and realization method thereof

Abstract

The invention discloses a main / standby electronic toll collection (ETC) track system with variable transaction scopes and a realization method thereof. The system comprises a main control computer, an automatic barrier machine, an expense display, two or more than two road side read-write devices, and a vehicles detector. According to a direction from which vehicles successively enter, the system divides a main communication area and a standby communication area on an ETC track; when the system does not complete ETC transaction with the vehicles at the main communication area, the standby communication area will be automatically started to carry out the ETC transaction with the vehicles; and when a portion of the road side read-write devices fail to work, the system will adjust power of the road side read-write device that can work normally, so that signal coverage on the vehicles can be ensured and thus a traffic flowing effect can be ensured.

Description

technical field [0001] The invention relates to the technical field of electronic toll collection (ETC), in particular to an active and standby ETC lane system with variable communication range. Background technique [0002] Electronic Toll Collection (ETC for short): refers to the use of on-board equipment installed on the vehicle and roadside equipment installed on the roadside to exchange information during the driving process of the vehicle at the place where toll is required, so that it is fully automatic Complete the entire charging process without stopping. [0003] Roadside Antenna Unit (RSU): It refers to a device that is installed at a toll station, etc., and reads and writes the information stored in the electronic tag (ie: vehicle unit device) through wireless microwave communication. [0004] On-board unit (OBU): refers to the equipment installed on the vehicle, storing vehicle information, and marking the vehicle. [0005] The existing ETC system encounters t...

AI Technical Summary

Problems solved by technology

[0009] 2) A typical ETC lane system has only one antenna. When the antenna is abnormal, the lane loses its ability to trade and can only be closed

[0010] 3) In a typical ETC lane system, the antenna is located about 2 meters in front of the railing. Due to the directivity of the antenna and OBU, the OBU cannot communicate when it is below the antenna, so there is a communication dead zone of about 2 meters in front of the railing

However, when the antenna in the communication area close to the railing fails, the communication blind area is enlarged compared with the traditional ETC; when the antenna in the communication area far from the railing fails, the communication area is smaller than the traditional ETC and can pass lower speed

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