Control circuit for parking electronic toll collection system of Bluetooth ETC/OBU and control method thereof

Abstract

The invention discloses a control circuit for a parking electronic toll collection system of a Bluetooth ETC / OBU and a control method thereof and belongs to the field of parking electronic toll collection systems of Bluetooth ETC / OBUs. The control circuit for the parking electronic toll collection system of the Bluetooth ETC / OBU comprises a constant current source protection unit, a linear amplification unit, an information storage unit, a signal transmitting unit and a signal receiving unit. The control circuit is advantaged in that power compensation is carried out on a data signal sent outafter Bluetooth matching and an output signal sent out after a charging system completes charging so that the interference of a transmitted signal can be effectively reduced; when information matchingis completed each time, the system stores the data information in the information storage unit so that the matching time can be effectively reduced during the next work, and efficiency is improved.

Description

technical field [0001] The invention relates to the field of ETC / OBU electronic parking toll collection system, in particular to a control circuit and a control method for the parking electronic toll collection system of Bluetooth ETC / OBU. Background technique [0002] The parking electronic toll collection system works through the parking space type roadside equipment RSE, vehicle detector, non-contact IC card and / or vehicle owner Mkey and back-end system; the core part of the system components mainly relies on DSRC wireless communication technology, through the parking space type road Side equipment and vehicle detectors to achieve controllable communication range and meet the business needs of hourly charging and deduction. [0003] The traditional parking electronic toll collection system has business requirements such as high precision, low power consumption, and low investment unique to the static parking electronic toll collection scene. The roadside equipment RSE has...

AI Technical Summary

Problems solved by technology

[0003] The traditional parking electronic toll collection system has business requirements such as high precision, low power consumption, and low investment unique to the static parking electronic toll collection scene. The roadside equipment RSE has complex technology, high power consumption, high cost, and complicated installation. Design blind spot, to solve the dilemma of existing OBU relying solely on DSRC and drive test equipment, it is necessary to find another way, and it is an inevitable situation in the new situation

[0004] The parking electronic toll collection system of ETC / OBU transmits information data according to the wireless connection of bluetooth, thereby completes information matching and charges, which can better realize wireless non-parking electronic toll collection; but the parking electronic toll collection system of ETC / OBU in the prior art Its wireless transmission is unstable, and the information matching time is too long, which increases the working time, resulting in too long parking time and serious congestion

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