A traffic monitoring and early warning method and system for expressways

Abstract

The present invention provides a traffic monitoring and early warning method and system for expressways. The time-of-flight TOF camera collects the environmental image of the road section at the preset frequency according to the received data collection instruction, generates three-dimensional point cloud data, and combines it with the The road section ID is sent to the monitoring processor; the monitoring processor performs filtering processing, vehicle feature data extraction and counting processing on the three-dimensional point cloud data, and obtains the total number of vehicles on the road section corresponding to the road section ID; the monitoring processor obtains the congestion threshold and judges whether the total number of vehicles is Greater than the congestion threshold; when the total number of vehicles was greater than the congestion threshold, the monitoring processor generated a free release command according to the road section ID and the total number of vehicles, and sent to each toll terminal and each user terminal of the road section corresponding to the road section ID; the user terminal received and analyzed the free release order, Obtain the free release prompt information and display it on the user terminal; the toll terminal generates an opening control command according to the free release command to open the vehicle interception device.

Description

technical field [0001] The invention relates to the field of data analysis, in particular to a traffic monitoring and early warning method and system for expressways. Background technique [0002] In recent years, with the improvement of people's living standards, people's travel methods have also undergone great changes, and private cars have also become a necessary means of transportation in people's lives. Self-driving has generally become the preferred way to go to work, get off work, and travel on holidays, and expressways carry a huge traffic flow. Traffic flow control and traffic congestion problems on expressways are unavoidable. [0003] In addition, a large amount of traffic flow also increases the probability of traffic accidents. If early warning and guidance of expressway traffic are not carried out in time, the cost of people's travel time will be greatly increased. [0004] With the development of Internet technology, people use advanced information technolo...

AI Technical Summary

Problems solved by technology

However, the early warning and control of the traffic conditions in each section of the expressway are far from perfect.

Due to the particularity of expressway paving, the difficulty of collecting traffic data on each section of expressway also greatly limits the development of expressway traffic control, especially at night, the collection of traffic road condition data has become an important reason hindering its development

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