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Urban viaduct traffic state sensing method based on bayonet and HADOOP technology

A traffic state and viaduct technology, applied in traffic flow detection and other directions, can solve problems such as insufficient data value mining, resource waste, lack of bayonet big data processing and analysis, etc., to improve efficient processing capabilities, improve utilization, and solve The effect of retrieving large amounts of data

Inactive Publication Date: 2015-09-30
ANHUI SUN CREATE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the lack of processing and analysis of bayonet big data, the value of these data has not been fully exploited, resulting in an extreme waste of resources

Method used

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  • Urban viaduct traffic state sensing method based on bayonet and HADOOP technology
  • Urban viaduct traffic state sensing method based on bayonet and HADOOP technology
  • Urban viaduct traffic state sensing method based on bayonet and HADOOP technology

Examples

Experimental program
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Effect test

Embodiment

[0054] 1) Take the bayonet data from 10:05 to 10:15, and after matching the license plates, it is learned that there are three vehicles entering the ramp from ramp 1, and exiting from ramp 3, ramp 4, and ramp 5. The time for the three vehicles to enter and leave the ramp are:

[0055] Vehicle 1: 10:05 when entering ramp 1 and 10:09 when leaving ramp 3;

[0056] Vehicle 2: 10:06 when entering ramp 1 and 10:11 when leaving ramp 4;

[0057] Vehicle 3: 10:05 when entering ramp 1 and 10:13 when exiting ramp 5.

[0058] The distance from ramp 1 to ramp 2 is 1.5 km, the distance from ramp 1 to ramp 3 is 4.1 km, the distance from ramp 1 to ramp 4 is 4.9 km, and the distance from ramp 1 to ramp 5 is 5.6 km.

[0059] 2) Calculate the travel time of three vehicles passing through the road section (ramp 1 to ramp 2):

[0060] t 1 =1.5 / 4.1*240=87.9s

[0061] t 2 =1.5 / 4.9*300=91.8s

[0062] t 3 =1.5 / 5.6*480=120s

[0063] 3) The average travel time of the road section (ramp 1 to ramp 2) is:

[0064] t=87....

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Abstract

The invention belongs to the technical field of urban road traffic state sensing, and particularly relates to an urban viaduct traffic state sensing method based on a bayonet and an HADOOP technology. The method comprises the following steps of obtaining bayonet data; using the HADOOP technology for storing data; screening the bayonet data in the statistics period; matching the bayonet data with a viaduct entering and exit ramp; calculating the traffic state of the viaduct. The method has the advantages that the road section traveling time and the average route speed are used as the basis for realizing the urban viaduct traffic state sensing, the traffic state sensing efficiency and the timeliness are improved through fast storage retrieval, and the basic guarantee is provided for an urban viaduct traffic manager to fast and effectively master the traffic state.

Description

Technical field [0001] The invention belongs to the technical field of urban road traffic state perception, and specifically relates to a method for urban viaduct traffic state perception based on bayonet and HADOOP technology. Background technique [0002] When the city's road traffic system is roughly determined, the city's land resources are extremely limited. As an important part of the three-dimensional traffic system of urban roads, urban viaducts can make more effective use of urban space under the existing planning pattern of the city, achieve three-dimensional intersection of roads, and enable traffic in all directions to drive on planes with different elevations, eliminating Or reduce conflict points; the traffic flow can run continuously to improve the traffic capacity of the road; save running time and fuel consumption; control the entry and exit of vehicles on the intersecting road, and reduce the interference to high-grade roads. It can be seen that the urban viadu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01
Inventor 林家骐胡涛冉艳豆雪晴李东魏维强雯李鹏刘军杨灿
Owner ANHUI SUN CREATE ELECTRONICS