A roadside device and data processing method in the roadside device

Abstract

The invention provides a roadside device and a data processing method in the roadside device. The roadside device specifically comprises a central processing unit (CPU), a radio frequency module and an antenna. The radio frequency module comprises a receiving module and a transmitting module. The antenna further comprises a receiving antenna and a transmitting antenna. The road side device further comprises an integrated circuit chip connected between the CPU and the radio frequency module. The integrated circuit chip comprises a transmitting processing module and a receiving processing module. Data returned by a vehicle-mounted device are received and processed by the receiving processing module through the receiving antenna and the receiving module, and the data received and processed by the receiving processing module are output to the CPU. The data from the CPU enter the transmitting processing module to be transmitted and processed, and the data transmitted and processed by the transmitting processing module are sequentially transmitted to the vehicle-mounted device through the transmitting module and the transmitting antenna. The roadside device and the data processing method can avoid data loss in the transaction process, reduce and save transaction time and improve transaction efficiency accordingly.

Description

technical field [0001] The present application relates to the technical field of intelligent transportation, in particular to a roadside device and a data processing method in the roadside device. Background technique [0002] The ETC (Electronic Toll Collection System) system uses DSRC (Dedicated Short-Range Communication) technology to complete the entire charging process, allowing vehicles to keep driving during the entire charging process without stopping. To this end, it needs to install RSU (Road-Side Unit, Road-Side Unit) at the toll station, install OBU (On-Board Unit, On Board Unit) on the driving vehicle, and use DSRC technology to complete the communication between RSU and OBU. [0003] The RSU is usually erected on the gantry above the ramp of the toll station. The vehicle equipped with the OBU passes the toll station at a normal speed. Both the RSU and the OBU transmit and receive microwave signals through the beam antenna to deduct money for consumption. An RS...

AI Technical Summary

Problems solved by technology

The above waiting time is set by the RSU. If the waiting time is too short, the RSU may have switched to the sending mode when the OBU returns data, resulting in data loss; Increased and wasted transaction time

[0006] For example, the waiting time for each sending data set by RSU is 10ms, assuming that the OBU of the vehicle enters the transaction area only 3ms after the current data sending by RSU, that is, the data sent by RSU is not received by OBU, so, It takes another 7ms for OBU to receive the data sent by RSU next time, and 7ms is purely wasted transaction time

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