Road condition detection method based on radar communication integration

A detection method and radar technology, applied in the field of intelligent transportation, can solve the problems of restricted use and pressure caused by communication equipment, and achieve the effect of saving electromagnetic resources

Active Publication Date: 2021-04-27
珠海中科慧智科技有限公司
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  • Abstract
  • Description
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  • Application Information

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

Method used

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  • Road condition detection method based on radar communication integration
  • Road condition detection method based on radar communication integration
  • Road condition detection method based on radar communication integration

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Embodiment Construction

[0024] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0025] The road section between two adjacent red street lights on a road is designated as an independent car-connected subnetwork, and signal isolation networks are set up between different road sections to prevent signal interference between different road sections and ensure that the road sections are independent of. The main station radar equipment is installed in the middle of the road section corresponding to each Internet of Vehicles subnetwork, and dual circularly polarized antennas are installed on it to transmit radar communication integrated signals; vehicles on the road are equipped with dual circularly polarized antennas for Receive radar communication integrated signal, and have anti-multipath interference function at the same time.

[0026] The road condition detection method based on the integration of radar communication using ...

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Abstract

The invention discloses a road condition detection method based on radar communication integration, comprising: 1. The radar communication integration signal pair s sent by the main station radar at time k 1 (k) and s 2 (k), according to the echo signal to obtain vehicle and obstacle detection information I(k) in the road section; 2, the main station radar transmits radar communication integrated signal pair s at k+1 time 1 (k+1) and s 2 (k+1), obtain vehicle and obstacle detection information I(k+1) in the road section according to the echo signal; by changing s 2 The width of each pulse in (k+1) modulates the detection information I(k) at time k to s 1 (k+1) and s 2 (k+1); 3. Vehicles in the road section receive the integrated radar communication signal pair s 1 (k+1) and s 2 (k+1), from which the detection information I(k) at the previous moment is obtained. In this method, the radar signal for detecting the target and the communication signal for transmitting the detection information are realized by a group of equal-period pulse signal pairs, which saves electromagnetic resources on the basis of realizing the 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 radar communication integration. Background technique [0002] Intelligent transportation system is an advanced comprehensive 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 movement 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 facilitate the driving assistance Or the realization of path planning, obstacle avoidance and other functions in unmanned driving. [0003] The Chinese patent document with the application number 201910703507.6 discloses a radar detection method ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/91G01S13/92G01S13/931G01S7/02G08G1/01G08G1/052
CPCG01S7/026G01S13/91G01S13/92G01S13/931G08G1/0104G08G1/052
Inventor 张贞凯王莹莹
Owner 珠海中科慧智科技有限公司
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