A precise warning and guidance system and method for expressway cloud fog based on Internet of Vehicles
A technology for highways and Internet of Vehicles, which is applied in the guidance system and the field of precise warning of cloud fog on highways. It can solve the problems of insufficient timeliness, non-detection, and inability to locate well in time, so as to promote and improve the timeliness of information transmission. Efficiency, improved continuity and real-time effects
Active Publication Date: 2020-07-31
JIANGSU UNIV
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Problems solved by technology
However, for vehicles that have already entered the expressway, the weather monitors that are far apart and have collection time intervals cannot locate the time and place of the fog in a timely manner, and may even fail to detect it.
Moreover, even if a cloud of fog is detected, currently only relying on variable speed limit signs and variable information prompt boards distributed at intervals to prompt and limit the speed of entering vehicles is slightly insufficient in timeliness
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[0035] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited thereto.
[0036] Such as figure 1 As shown, the present invention is based on a network of vehicles accurate warning and guidance system for expressway fog, including vehicle equipment, cloud vehicle network service center and highway information management center; vehicle equipment includes sequentially connected information collection device, information processing device and an information release device, the information collection device includes a GPS / Beidou dual-mode positioning terminal 1, a vehicle-mounted binocular camera 2 of a networked vehicle, a relative humidity sensor 3 placed outside the vehicle, and an information processing device includes a data judgment module 4, the first 5G The communication module 5, the information publishing device is a human-computer interaction terminal 6; the clou...
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The invention discloses an accurate warning and induction system and method for expressway fog based on the Internet of Vehicles, specifically, in the environment of the Internet of Vehicles, the average gray value change of the image is monitored by using the image processing technology of the vehicle-mounted binocular camera of the Internet of Vehicles , to trigger the calculation of the image visibility of the suspected fog road section, and with the assistance of the humidity sensor, upload the relevant road section data when the visibility is low and the humidity meets the fog occurrence conditions to the cloud Internet of Vehicles service center, combined with the weather monitoring station visibility data calculation Comprehensive visibility, through the fuzzy comprehensive evaluation of various factors that generate fog, verify the foggy road section and release the foggy information, and realize the precise warning and guidance of the foggy road section of the expressway.
Description
technical field [0001] The patent of the present invention belongs to the technical field of road safety control, and specifically relates to a precise warning and guidance system and method for expressway cloud fog based on Internet of Vehicles. Background technique [0002] At present, the key technologies of intelligent networked vehicles and vehicle-road coordination are constantly making breakthroughs. How to ensure the safe operation of networked vehicles under extreme working conditions has attracted more and more attention from researchers. According to statistics from the traffic control department, fog is the main cause of major serial traffic accidents on expressways; how to avoid risks for intelligent networked vehicles in the face of fog has become a topic of great research value. [0003] Tuo Tuo Fog, also known as Tuo Tuo Fog, is also fog in essence. It is affected by the microclimate environment in local areas. In the local range of tens of meters to hundreds...
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IPC IPC(8): G08B21/12G08G1/0967H04L29/08G06K9/00
CPCH04L67/10G08B21/12G08G1/0967G06V20/56
Inventor 梁军徐鹏陈龙蔡英凤马世典陈小波刘擎超蔡涛罗媛钟明
Owner JIANGSU UNIV