Digital hormone-based traffic control optimization method

A technology of traffic control and optimization method, applied in the field of intelligent transportation, can solve problems such as inability to achieve results, poor real-time performance, poor fault tolerance, etc., achieve good modifiability and scalability, solve uncertainty, and stable performance.

Inactive Publication Date: 2011-11-23
FUZHOU UNIV
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AI Technical Summary

Problems solved by technology

Traffic problems are especially serious in large and medium-sized cities, and for them, the overall architectural planning has been finalized, and it is difficult to improve the communication efficiency of roads in terms of "hardware"
Signal light control is one of the most important functional sub-modules in the intelligent transportation system, and it is also one of the most important means to improve the efficiency of the traffic system. Relevant scholars have proposed many algorithm theories applied to the signal light control system, mainly including neural network and genetic algorithm. and fuzzy control, etc., but they generally have disadvantages such as complex calculation, poor fault tolerance, difficult expansion, and poor real-time performance.
In addition, the existing systems focus on the timing optimization of signal lamps, that is, they are limited to the calculation of the three basic control attributes of signal lamp cycle length, green signal ratio, and phase difference, which cannot achieve ideal results.

Method used

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  • Digital hormone-based traffic control optimization method
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  • Digital hormone-based traffic control optimization method

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Embodiment Construction

[0011] The present invention is a traffic control optimization method based on digital hormones, please refer to figure 1 and figure 2 , the method includes the following steps:

[0012] (1) Based on the principle of digital hormones, update the gravitational information of the road section and the update of the hormone concentration. The update of the gravitational information of the road section is carried out by the following method: set a suppression domain L for the congestion degree of the road section, and the road section will flow to other areas in the suppression domain according to a certain attenuation law. The road segment broadcasts its own density K, and after receiving the information, the receiving road segment saves it as K', and when calculating the road segment I, its K and K' are pressed by K+ ∑K'( is the weight) to be added together as the total load of the section.

[0013] set I j is the suppression factor of section j, and the calculation formul...

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Abstract

The invention relates to a digital hormone-based traffic control optimization method. A digital hormone theory is applied to traffic coordination control, the dynamic characteristics of traffic flow distribution and signal control are fully considered, a traffic flow distribution and signal lamp control coordination model is established, and the digital hormone-based traffic control optimization method is applied to the solution of the coordination problem of traffic flow distribution and signal lamp control. The method is a totally distributed control method, and the problems of uncertainness, randomness, nonlinearity, locality and the like of a traffic system can be well solved by the method. In addition, compared with other intelligent algorithms, the method has the advantages that: the structure is simple, performance is stable, and modifiability and expandability are high.

Description

technical field [0001] The invention relates to the technical field of intelligent traffic, in particular to a digital hormone-based traffic control optimization method. Background technique [0002] The mass popularity of vehicles has brought us convenience, but it has also caused many traffic problems and some subsidiary crises. The whole world is eager to solve these problems. Traffic problems are especially serious in large and medium-sized cities, and for them, the overall architectural planning has been finalized, and it is difficult to improve the communication efficiency of roads in terms of "hardware". Signal light control is one of the most important functional sub-modules in the intelligent transportation system, and it is also one of the most important means to improve the efficiency of the traffic system. Relevant scholars have proposed many algorithm theories applied to the signal light control system, mainly including neural network and genetic algorithm. And...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07
Inventor 余春艳叶东毅刘灵辉李建明郑俊耀方良松
Owner FUZHOU UNIV
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