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Short-term traffic flow forecasting device

A traffic flow and forecasting device technology, applied in traffic flow detection, forecasting, traffic control systems, etc., can solve problems such as strong limitations, traffic flow forecast stays, and unsatisfactory real-time forecasting.

Active Publication Date: 2016-11-23
NEWLIXON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In related technologies, the short-term traffic flow forecasting device has strong limitations, low forecasting accuracy, real-time forecasting fails to achieve satisfactory results, and fails to provide effective suggestions for people's real-time road selection, so most of the traffic flow forecasting Mid-to-long-term forecast of staying in traffic flow

Method used

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  • Short-term traffic flow forecasting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] see figure 1 , figure 2 , a short-term forecasting device for traffic flow in this embodiment includes a data recovery module and a forecasting device, and the data recovery module recovers traffic flow data through the following steps:

[0059] (1) The original traffic flow data q obtained by detecting the detection point by the vehicle detector orig The unit is converted into standard hourly flow data, and then the standard hourly flow data is weighted and averaged into a traffic flow data set q with a fixed period T;

[0060] The traffic flow data set q={q(1),...,q(k),...,q(n)} of the described fixed period T; q(k) represents the traffic flow data of the k time period, wherein the The standard hourly traffic flow data of represents the traffic flow data with the unit of vehicle / hour;

[0061] (2) Carry out threshold screening to the traffic flow data set q of the fixed period T obtained in step (1);

[0062] Preferably, it is characterized in that step (2) also ...

Embodiment 2

[0104] see figure 1 , figure 2 , a short-term forecasting device for traffic flow in this embodiment includes a data recovery module and a forecasting device, and the data recovery module recovers traffic flow data through the following steps:

[0105] (1) The original traffic flow data q obtained by detecting the detection point by the vehicle detector orig The unit is converted into standard hourly flow data, and then the standard hourly flow data is weighted and averaged into a traffic flow data set q with a fixed period T;

[0106] The traffic flow data set q={q(1),...,q(k),...,q(n)} of the described fixed period T; q(k) represents the traffic flow data of the k time period, wherein the The standard hourly traffic flow data of represents the traffic flow data with the unit of vehicle / hour;

[0107] (2) Carry out threshold screening to the traffic flow data set q of the fixed period T obtained in step (1);

[0108] Preferably, it is characterized in that step (2) also ...

Embodiment 3

[0150] see figure 1 , figure 2 , a short-term forecasting device for traffic flow in this embodiment includes a data recovery module and a forecasting device, and the data recovery module recovers traffic flow data through the following steps:

[0151] (1) The original traffic flow data q obtained by detecting the detection point by the vehicle detector orig The unit is converted into standard hourly flow data, and then the standard hourly flow data is weighted and averaged into a traffic flow data set q with a fixed period T;

[0152] The traffic flow data set q={q(1),...,q(k),...,q(n)} of the described fixed period T; q(k) represents the traffic flow data of the k time period, wherein the The standard hourly traffic flow data of represents the traffic flow data with the unit of vehicle / hour;

[0153] (2) Carry out threshold screening to the traffic flow data set q of the fixed period T obtained in step (1);

[0154] Preferably, it is characterized in that step (2) also ...

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Abstract

The invention discloses a short-term traffic flow forecasting device, which comprises a data recovery module and a forecasting device, wherein the forecasting device comprises an acquisition module, a data pre-processing module, a data classification module, a stationarity test module, a correlation coefficient calculation module, a threshold setting module, a space-time correlation coefficient matrix generation module, a historical correlation coefficient matrix generation module, a forecasting factor selection module and a forecasting model construction module connected in sequence. The forecasting precision is high, and the constructed forecasting model is more targeted.

Description

technical field [0001] The invention relates to the field of highway network traffic planning systems, in particular to a short-term forecasting device for traffic flow. Background technique [0002] Traffic flow refers to the actual number of vehicles passing through a certain section of the road per unit time, which is an important characteristic parameter to describe the traffic state. The change of traffic flow is a real-time, high-dimensional, non-linear, non-stationary random process, and changes in related factors may affect the traffic flow at the next moment. In related technologies, the short-term traffic flow forecasting device has strong limitations, low forecasting accuracy, real-time forecasting fails to achieve satisfactory results, and fails to provide effective suggestions for people's real-time road selection, so most of the traffic flow forecasting Stay in the medium and long-term forecast of traffic flow. Contents of the invention [0003] In view of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01G08G1/065G06Q10/04
CPCG06Q10/04G08G1/0125G08G1/0129G08G1/065
Inventor 不公告发明人
Owner NEWLIXON TECH CO LTD
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