Radar road identification method for detecting vehicle flow

Abstract

This invention relates to roadway identification method by traffic flow test radars, which emits the FM continuous waves generated by a transceiver component, which reflect back when meeting with targets then to be mixed and input to the IF circuit to be amplified and filtered to be input into a signal processor, which carries out roadway identification process to the sampled signal and utilizes a set of filter group same to the roadway number to separate information on different roadways and analyzes the spectrum of each set of data, the transceiver component is mounted on a fixed position with relative fixed background of covered region so as to finish the elimination algorithm of clutters, which engages in frequency domain elimination to spectrums when cars passing through and the spectrums when no cars passing through and records times of cars passing through different ways to get the traffic flow, the signal processor transmits the statistic flows and car velocities to the system controller for network communication.

Description

technical field [0001] The invention relates to the field of vehicles, in particular to a vehicle detection method, in particular to a traffic flow detection radar lane recognition method. Background technique [0002] Intelligent Transportation System (ITS) is a real-time, accurate and efficient comprehensive transportation management system that plays a role in a wide range and in all directions. ITS will make effective use of existing transportation facilities, ensure traffic safety, improve transportation efficiency, and attract the attention of various countries by promoting social informationization and forming new industries. At present, it has become the direction of transportation development in the world in the 21st century. [0003] In the prior art, due to the all-weather feature of radar work, it is currently the best means to use radar to monitor the traffic flow and speed in the ITS system. American Wavetronix traffic flow detection radar adopts the method o...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a traffic flow detection radar lane identification method. The present invention solves the technical problem that the traffic flow detection radar in the prior art cannot determine the length of the zero signal, which brings errors to traffic statistics.

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