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Method and system for safety early warning and control at non-signal-controlled intersections

A safety early warning and intersection technology, which is applied in the field of safety early warning and control systems at non-trusted intersections, can solve problems such as inefficient use of detection data resources, detection accuracy, applicable scene restrictions, linkage, and insufficient analysis, and achieve product improvement Safety performance, strengthening of system analysis capabilities, and improvement of safety warning accuracy

Active Publication Date: 2022-06-17
JIANGSU PROVINCIAL COMM PLANNING & DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some solutions that have been adopted in the industry for non-signal-controlled intersections often only use a single sensing device, and the detection accuracy and applicable scenarios are limited. Usually, they only solve point-to-point problems for a single scenario, and the adaptability is insufficient, which brings It is impossible to flexibly adapt to problems under different scenarios (cities, national highways, etc.) and different environmental factors (such as vehicles, weather, road conditions, etc.)
At the same time, the systematic construction of existing products is insufficiently considered, the linkage and analysis with the back end are insufficient, and the detection data resources are not efficiently used

Method used

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  • Method and system for safety early warning and control at non-signal-controlled intersections
  • Method and system for safety early warning and control at non-signal-controlled intersections
  • Method and system for safety early warning and control at non-signal-controlled intersections

Examples

Experimental program
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Effect test

Embodiment 1

[0047] Example 1: figure 1 It is a schematic diagram of the structure of the safety warning and control system for non-signal-controlled intersections. like figure 1 Shown: Non-signal-controlled intersection safety warning and control system 1, focusing on the core gist of road safety improvement, flexibly using a variety of road test perception units according to local conditions for real-time and efficient early warning, and combining big data and artificial intelligence technology at the back end to achieve control and Information is released dynamically to form a hazard early warning and intelligent management and control system of intelligent closed-loop system of non-signal-controlled intersections, including front-end perception module 2, early warning control module 3, multi-sensing fusion module 4, communication module 5, and back-end analysis platform 6, front-end The sensing module 2, the early warning control module 3, the multi-sensing fusion module 4 and the com...

Embodiment 2

[0153] Embodiment 2: Security early warning and management and control methods for non-trust-controlled intersections, including:

[0154] Use millimeter-wave radar and lidar to obtain the state of the target; correct the state of the obtained target to obtain the state of the corrected target;

[0155] Utilize the state training of the revised target to obtain the optimized warning model, and the warning model is used for predicting the best warning position of the target;

[0156] Use the early warning model to determine the optimal early warning position of the target and issue early warning signals according to the optimal early warning position of the target.

[0157] It should be noted that those skilled in the art can clearly understand that, for the convenience and brevity of description, the above-described method corresponds to the specific working process of the device / unit or module in the system, and reference may be made to the corresponding description in the fo...

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Abstract

The invention provides a safety early warning and control method and system for a non-signal-controlled intersection, which uses millimeter-wave radar and laser radar to obtain the state of the target; corrects the state of the obtained target, and obtains the state of the corrected target; uses the corrected target The optimized early warning model is obtained from state training of the target, and the early warning model is used to predict the best early warning position of the target; the early warning model is used to determine the best early warning position of the target and an early warning signal is issued according to the best early warning position of the target. The invention applies multiple sensors such as radar and laser sensors in the field of unmanned driving and multi-perception fusion technology innovations to non-signature-controlled intersections. Compared with existing products on the market, the adaptability and accuracy are greatly improved. ; At the same time, while ensuring the complete function of the system, the product safety performance is greatly improved.

Description

technical field [0001] The invention relates to a safety warning and management and control system for a non-signal-controlled intersection, and belongs to the technical field of control systems and communications. Background technique [0002] As a necessary part of traffic, road intersection is an important node in the construction of road network, which carries traffic and connects roads. With the development of the economy and the increase in the number of vehicles, the probability of traffic accidents in urban road intersections and their surrounding areas is as high as 60%, and the proportion in rural areas is even higher. How to reduce the safety risks of non-signal-controlled intersections and reduce the occurrence of traffic accidents is a technical problem that needs to be solved. [0003] Under the background of the rapid development of unmanned driving, the multi-sensor application and multi-sensing fusion technology have been initially tried and achieved good r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/04G08G1/01G08G1/09G01S13/91G01S17/88
CPCG08G1/04G08G1/0129G08G1/09G01S13/91G01S17/88
Inventor 崔志伟何碧娟储轶钢华茹玥钮昊天万俊杰
Owner JIANGSU PROVINCIAL COMM PLANNING & DESIGN INST
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