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Traffic flow prediction method and device

A technology of traffic flow and forecasting method, applied in the field of Internet of Things, can solve problems such as poor forecasting accuracy, achieve the effect of improving accuracy and reducing network burden

Active Publication Date: 2018-05-29
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current solution can only predict short-term traffic flow, such as 5-15 minutes. For long-term traffic flow prediction, a large amount of historical data needs to be accumulated, and the prediction accuracy is poor

Method used

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  • Traffic flow prediction method and device
  • Traffic flow prediction method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] The method for traffic flow prediction in the embodiment of the present invention, as figure 1 shown, including the following steps:

[0074] Step 101: receiving traffic flow information collected by each sensing coil laid on the road to be predicted;

[0075] Step 102: Using current traffic flow information and historical traffic flow information to obtain traffic event recognition results;

[0076] Specifically, using current traffic flow information and historical traffic flow information, determine the traffic parameters of the road to be predicted; the traffic parameters include traffic volume, average speed of traffic flow, and time occupancy; Predict the ratio of the sum of the time the sensor coils on the road are occupied by the vehicle to the observation time;

[0077] Screen out the traffic parameters that meet the preset rules from the determined traffic parameters;

[0078] Extract feature parameters from the filtered traffic parameters;

[0079] Using ...

Embodiment 2

[0106] On the basis of Embodiment 1, this embodiment describes the process of traffic flow prediction in detail.

[0107] figure 2 It is a schematic diagram of the system architecture of the embodiment of the present invention. from figure 2As can be seen from the figure, the solution of the embodiment of the present invention is: the sensing coil transmits the collected traffic flow information to the roadside unit (RSU), and the RSU determines the traffic event information and predicts the traffic flow based on the received information, and sends the corresponding The information is sent to the vehicle.

[0108] image 3 It is a schematic flow chart of traffic flow forecasting in this embodiment. to combine image 3 , the process of traffic flow prediction in this embodiment includes the following steps:

[0109] Step 301: the sensor coil collects the traffic flow information of the road, and sends the traffic flow information to the RSU;

[0110] Here, at present, ...

Embodiment 3

[0210] In order to realize the method of the embodiment of the present invention, this embodiment provides a traffic flow forecasting device, which can be set in the RSU, such as Figure 7 As shown, the device includes:

[0211] The receiving unit 71 is used to receive the traffic flow information collected by each sensing coil laid on the road to be predicted;

[0212] An identification unit 72, configured to obtain traffic event identification results by using current traffic flow information and historical traffic flow information;

[0213] The predicting unit 73 is configured to predict the traffic flow of the road based on the received traffic flow information and the identification result of the traffic event.

[0214] Wherein, the identification unit 72 is specifically used for:

[0215] Utilize current traffic flow information and historical traffic flow information to determine the traffic parameters of the road to be predicted; the traffic parameters include traffi...

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PUM

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Abstract

The invention discloses a traffic flow prediction method comprising the following steps: receiving traffic flow information gathered by each sensing coil paved on a to-be-predicted road; using the present traffic flow information and history traffic flow information to obtain a traffic event identification result; predicting the traffic flow of the road according to the received traffic flow information and the traffic event identification result. The invention also discloses a traffic flow prediction device.

Description

technical field [0001] The present invention relates to the Internet of Things technology, in particular to a traffic flow forecasting method and device. Background technique [0002] Traffic incidents refer to sporadic events on expressways that affect traffic safety and smooth flow, such as vehicle traffic accidents, breakdown parking, control, etc. Traffic incidents have a serious impact on road traffic. It has been reported that 60% of traffic congestion is caused by non-periodic congestion caused by traffic incidents, and it is increasing rapidly year by year. Therefore, the detection of traffic events and the prediction of traffic flow changes caused by traffic events have an important impact on the improvement of road traffic efficiency. [0003] However, the existing traffic incident detection and traffic flow prediction are mainly based on video files, which requires multiple cameras on the road, and each camera transmits video files to the platform, and then condu...

Claims

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Application Information

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IPC IPC(8): G08G1/01G08G1/042G08G1/065
CPCG08G1/0125G08G1/0129G08G1/042G08G1/065
Inventor 张喆
Owner CHINA MOBILE COMM LTD RES INST