Road condition detection method based on radar communication integration

Abstract

The invention discloses a road condition detection method based on radar communication integration, and the method comprises the steps that 1, a main station radar transmits radar communication integration signal pairs s1 (k) and s2 (k) at the moment k, and obtains the detection information I (k) of vehicles and obstacles in a road segment according to echo signals; 2, at the k + 1 moment, the main station radar transmits radar communication integrated signal pairs s1 (k + 1) and s2 (k + 1), and vehicle and obstacle detection information I (k + 1) in the road section is obtained according to echo signals; the detection information I (k) at the moment k is modulated into s1 (k + 1) and s2 (k + 1) by changing the width of each pulse in s2 (k + 1); 3, the vehicles in the road section receivethe radar communication integrated signal pairs s1 (k + 1) and s2 (k + 1), and the detection information I (k) at the last moment is obtained from the radar communication integrated signal pairs; according to the method, a radar signal used for detecting a target and a communication signal used for transmitting detection information are realized by using a group of equal-period pulse signal pairs,so that electromagnetic resources are saved on the basis of realizing a road condition detection function.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation, and in particular relates to a road condition detection method based on the integration of radar communication. Background technique [0002] Intelligent transportation system is an advanced integrated traffic management system, which is based on modern electronic information technology and serves the transportation system. During the driving process of the vehicle, other vehicles and obstacles on the road will affect the driving of the vehicle. If the motion information of other vehicles and obstacles in the environment can be obtained in real time, it will be conducive to the safe driving of the vehicle and at the same time to assist the driving. Or the realization of functions such as path planning and obstacle avoidance in unmanned driving. [0003] The Chinese patent document with the application number of 201910703507.6 discloses a radar detection method based on multi-r...

AI Technical Summary

Problems solved by technology

In actual use, most car owners are not willing to actively send their own motion information, thus limiting the use of this method

In addition, when there are many vehicles on the road, it is necessary to send information to many vehicles, and at the same time receive request information from a large number of other vehicles, which will bring pressure to the communication equipment

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