Method, device and storage medium for etc vehicle identification based on signal strength

Abstract

The present invention provides an ETC vehicle identification method, device, and storage medium based on V2X signal strength, wherein the ETC vehicle identification method includes: respectively receiving the V2X signal strength, vehicle speed, and number of received messages of ETC vehicles on at least two lanes; The vehicle speed and the number of received messages are the independent variables, and the V2X signal strength is the dependent variable, which is fitted into a signal strength change characteristic function; based on the signal strength change characteristic function, the actual peak values ​​corresponding to the signal strength changes of ETC vehicles on at least two lanes are respectively solved ; Comparing the difference between each actual peak value and the theoretical peak value, if the difference value meets the set threshold range, the ETC vehicle on the corresponding lane is the target vehicle. The present invention is based on the signal strength change sent by the ETC vehicle, fitting the signal strength change characteristic function, and judging which lane the ETC vehicle is actually driving in according to the peak value of the fitted signal strength change characteristic function, and then accurately identifying the traffic situation of the target vehicle, Solve the problem of false recognition that may be caused by adjacent channel interference.

Description

technical field [0001] The present invention relates to the technical field of ETC vehicle identification, in particular to an ETC vehicle identification method, device and storage medium based on V2X signal strength. Background technique [0002] like figure 1 As shown, in the V2X ETC vehicle identification system, adjacent channel interference is a relatively common problem. The reason is that: the RSE installed on the gantry receives the V2X message of the on-board unit (On Board Equipment, OBE). Since the RSE signal covers The traffic area of ​​the adjacent road is blocked, which causes the RSE to receive the message of the adjacent road vehicle by mistake, resulting in the wrong identification of the adjacent road vehicle. [0003] The problem of adjacent channel interference will cause wrong identification of ETC vehicles, resulting in repeated uploads of vehicle information. In the single-chip OBEETC charging system, it will also lead to incorrect billing, which seri...

AI Technical Summary

Problems solved by technology

[0002] like figure 1 As shown, in the V2X ETC vehicle identification system, adjacent channel interference is a relatively common problem. The reason is that: the RSE installed on the gantry receives the V2X message of the on-board unit (On Board Equipment, OBE). Since the RSE signal covers The traffic area of ​​the adjacent road is blocked, which causes the RSE to receive the message of the adjacent road vehicle by mistake, resulting in the wrong identification of the adjacent road vehicle

[0003] The problem of adjacent channel interference will cause wrong identification of ETC vehicles, resulting in repeated uploads of vehicle information. In the single-chip OBEETC charging system, it will also lead to incorrect billing, which seriously affects the efficiency and accuracy of the deduction system

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