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Intelligent traffic time division method based on moving average algorithm

A time division and sliding average technology, which is applied in the traffic control system of road vehicles, traffic flow detection, traffic control system, etc., can solve the problem that it is difficult to accurately describe the changing situation of traffic flow, and achieve the effect of improving effectiveness

Active Publication Date: 2020-06-16
航天科工广信智能技术有限公司
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Problems solved by technology

At present, the most common method of setting thresholds for actual traffic flow data to distinguish between peak and valley periods has certain limitations, and it is difficult to accurately describe the changing situation of traffic flow.

Method used

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  • Intelligent traffic time division method based on moving average algorithm
  • Intelligent traffic time division method based on moving average algorithm
  • Intelligent traffic time division method based on moving average algorithm

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] refer to Figure 1 ~ Figure 3 , a method for dividing intelligent traffic time slots based on the moving average algorithm, including the following steps:

[0027] 1) Enter the specific date, intersection, and lane to obtain the traffic flow information of the corresponding intersection road; take Δt=5 minutes as the time interval, divide the day into 288 time periods, and obtain the passing data from the database, and calculate the 288-dimensional The traffic flow of the intersection is denoted as V, where V(t) represents the traffic flow of the current intersection at the time period t;

[0028] 2) Using the moving average algorithm to smooth V, the calculation method is shown in the following formula (1):

[0029]

[0030] In the formula: τ is the half period length of sliding; w i is the weight of each period V, where ∑w i = 1; is the traffic flow d...

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Abstract

An intelligent traffic period division method based on the sliding average algorithm, including the following steps: 1) Obtain road flow information at the intersection; 2) Use the sliding average algorithm to smooth the obtained data; 3) Perform differential calculation through the smoothed data , to obtain the corresponding derivative, that is, the changing trend of traffic flow; 4) According to the different changing characteristics of the traffic flow derivative, further data discrimination is performed, and the traffic status of the day is divided into multiple periods, which provides information for the design of the next timing plan. in accordance with. This invention uses the sliding average algorithm to smooth the data, uses the difference result to approximate the data derivative, and divides the time periods. It can more sensitively reflect the data change trend of the traffic flow, more accurately identify the traffic conditions of the road network, and improve the distribution of traffic. effectiveness of the time plan.

Description

technical field [0001] The invention relates to the application fields of traffic control engineering and big data analysis, and in particular to a traffic peak-valley state identification and a time division method of a timing scheme. Background technique [0002] With the improvement of the degree of urban modernization, the scale of urban traffic has also maintained a trend of rapid growth, and traditional traffic technology has begun to find it difficult to adapt to the requirements of social development. Due to the complexity and uncertainty of traffic flow changes, the most prominent one is that due to the impact of morning and evening peak hours, urban traffic conditions change frequently and complexly. In order to alleviate urban traffic conditions, based on the characteristics of different time periods, it is necessary to configure different Therefore, the accuracy and effectiveness of the division of peak and valley periods is particularly important. At present, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G06Q10/06G06Q50/30
CPCG06Q10/06393G08G1/0145G06Q50/40
Inventor 陈明王勐彭吉友
Owner 航天科工广信智能技术有限公司
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