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Discrimination method of urban intersection traffic status based on rfid data

A technology of traffic state and discrimination method, applied in the direction of road vehicle traffic control system, traffic flow detection, traffic control system, etc., can solve the problem of RFID data less intersection traffic state discrimination research and other problems, and achieve the effect of improving data support

Active Publication Date: 2019-05-17
SOUTHEAST UNIV
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  • Abstract
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Problems solved by technology

RFID data is used to study the passage time of road sections, vehicle emissions, etc., but RFID data is rarely used in the identification of traffic conditions at intersections, so researchers are required to conduct research and experiments.

Method used

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  • Discrimination method of urban intersection traffic status based on rfid data
  • Discrimination method of urban intersection traffic status based on rfid data
  • Discrimination method of urban intersection traffic status based on rfid data

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Embodiment Construction

[0038] The technical solution will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, those skilled in the art all fall within the appended claims of the present application to the modifications of various equivalent forms of the present invention. limited range.

[0039] The method for judging the traffic state of urban intersections based on RFID data proposed by the present invention, its flow chart is shown in the attached figure 1 , mainly including the following steps;

[0040] 1) RFID data screening and cleaning

[0041] This experiment uses the data of road radio frequency equipment at the intersection of Zhujiang Road-Taiping North Road in Gulou District, Nanjing, Jiangsu Province in December 2015 to verify the traffic sta...

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Abstract

The invention discloses a method for judging the traffic state of an urban intersection based on radio frequency RFID data. First, determine the intersection traffic state description parameters and perform RFID data screening and cleaning, base station comparison preprocessing, determine the running track between the upstream and downstream base stations of the vehicle intersection through license plate comparison; then use the compared vehicle record data to obtain intersection delays Estimated value of time and saturation; finally, the delay time and saturation of intersections in different time periods are classified by hierarchical clustering, and the operation status of intersections is determined by combining the delay time and saturation of different types of intersections. The invention can be used for judging the traffic state at urban intersections, provides certain basis for traffic guidance, releases traffic control and guidance information, and can realize effective coordination of traffic control and guidance.

Description

technical field [0001] The invention belongs to the technical field of traffic intelligent management and control, in particular to a method for judging the traffic state of an urban intersection based on RFID data. Background technique [0002] Urban intersections are the bottleneck of urban roads, and their traffic efficiency often affects the operation of road networks. Intersection traffic state discrimination is the key to identify the intersection traffic state. Real-time and reliable identification of traffic status at intersections is beneficial to the management and control of traffic signals at intersections, and signal cycle optimization; effectively identifying traffic status at intersections and providing reference for traffic guidance is an indispensable organic component of traffic control systems and traffic guidance systems. component. [0003] At present, the methods for urban traffic state discrimination mainly include fuzzy synthesis theory, FCM-rough s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G06K9/62
CPCG08G1/0133G06F18/24
Inventor 陈淑燕曹政
Owner SOUTHEAST UNIV
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