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A traffic jam spreading situation detection method and system

A situation and vehicle technology, applied in the field of intelligent transportation, can solve problems such as the need for manual statistical data and the inability to detect the traffic spread data on the city's roads in real time, and achieve the effect of continuous space.

Active Publication Date: 2019-11-05
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a traffic jam spreading situation detection method and system to solve the problem in the prior art that it is impossible to detect the city's road traffic spreading data in real time and manual statistical data is required

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  • A traffic jam spreading situation detection method and system
  • A traffic jam spreading situation detection method and system
  • A traffic jam spreading situation detection method and system

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Experimental program
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Embodiment 1

[0018] figure 1 It is a flow chart of the traffic jam spread situation detection method provided in Embodiment 1 of the present application. In this case, the traffic jam spread situation is detected by processing the GPS data of urban taxis, and then mapping the GPS data to urban roads. Include the following steps:

[0019] S11: Preprocessing the taxi GPS data file.

[0020] The taxi GPS data file described in this step is the taxi GPS data of the whole city. Taking Shenzhen as an example, the daily taxi GPS data source files of the general city are stored in a file of the server.

[0021] This step refers to classifying and extracting the GPS data source files in a file according to a certain unique identity, and storing them separately, and the unique identity is the license plate number. At the same time, delete unnecessary field data, such as device number, alarm type, vehicle status, license plate color and other data content. The GPS source file data is shown in Tabl...

Embodiment 2

[0045] figure 2 The schematic diagram of the detection system for the spread of traffic jams provided by Embodiment 2 of the present application mainly refers to detecting the spread of traffic jams by processing the GPS data of urban taxis and then mapping the GPS data to urban roads. Specifically include:

[0046] Preprocessing unit 21, used for preprocessing taxi GPS data files;

[0047] A matching unit 22, configured to map the preprocessed GPS data to urban roads according to the topological relationship between urban roads;

[0048] Statistical unit 203, used to count the average speed of each road unit moment and judge the level of traffic jam;

[0049] The detection unit 204 is configured to detect the traffic jam spreading situation according to the calculated urban road traffic jam level.

[0050] The taxi GPS data file described in the preprocessing unit 21 is the taxi GPS data of the whole city. Taking Shenzhen City as an example, the daily taxi GPS data source...

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Abstract

The application discloses a traffic jam spreading situation detection method, including the following steps: preprocessing a motor vehicle GPS data file which extracts GPS data of a motor vehicle and separately stores the GPS data according to a unique identifier of the vehicle; mapping the preprocessed GPS data to urban roads according to a topological relation between the urban roads; and making statistic of the average speed of each road at unit moment and judges the traffic jam level. A traffic jam spreading situation is detected according to the urban road traffic jam level obtained through statistics, and the defects in the prior art that urban road traffic jam spreading situation detection cannot realize continuous detection in time and space, and manual data statistics is needed are overcome. The application also discloses a traffic jam spreading situation detection system.

Description

technical field [0001] The present application relates to the field of intelligent transportation, in particular to a method and system for detecting traffic jam spreading situation. Background technique [0002] In recent years, the accelerated industrialization process and the rapid increase in the number of cars have led to an imbalance between the growth rate of road mileage and cars, and a series of traffic problems have emerged. The most direct problems are serious congestion of urban roads, reduced traffic capacity of road networks, and slow driving of vehicles. , Traffic accidents occur frequently, which lead to the decline of travel comfort and travel difficulties for urban residents. [0003] The vehicle route guidance system is an effective method to solve the problems such as traffic jams that are common in major cities at present. As an important research content of the guidance system, traffic jam spread situation detection can more accurately reflect the road...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01
CPCG08G1/0133
Inventor 李继琳罗军姜青山陈会姜小砾
Owner SHENZHEN INST OF ADVANCED TECH