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Hybrid recommendation-based traffic signal control scheme real-time selection method

A traffic signal and control scheme technology, applied in the field of real-time selection of traffic signal control schemes based on mixed recommendations, to achieve good comprehensive benefits, optimization effects, and the effect of improving the ability of short-term traffic state fluctuations

Active Publication Date: 2013-04-17
INST OF AUTOMATION CHINESE ACAD OF SCI +1
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Problems solved by technology

In addition, it cannot respond to fine-grained, short-term traffic state fluctuations, such as traffic emergencies, which are unavoidable in actual traffic systems

Method used

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  • Hybrid recommendation-based traffic signal control scheme real-time selection method
  • Hybrid recommendation-based traffic signal control scheme real-time selection method
  • Hybrid recommendation-based traffic signal control scheme real-time selection method

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0023] Such as figure 1 As shown, the real-time selection method of the traffic signal control scheme based on mixed recommendation of the present invention is implemented in a distributed manner by computers at different levels, and the computers at different levels are divided into offline knowledge acquisition layer A1, traffic information storage and processing layer according to the functions of the present invention A2 and live execution layer A3. The communication between each layer can adopt the existing signal controller network communication medium and method. The Pearson correlation calculation used in the recommendation process is based on the Tanimoto coefficient similarity measurement method, and the Slope ...

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Abstract

The invention discloses a hybrid recommendation-based traffic signal control scheme real-time selection method, which comprises the following steps of: processing intersection characteristics and traffic signal control scheme characteristics to obtain intersection categories and scheme categories; and constructing a standard traffic scene on a parallel simulation platform for each intersection category to test a control scheme so as to obtain performance of the intersection category under the simulation platform as system starting knowledge. When the actual intersection control performance cannot meet the requirements, the control scheme suitable for an intersection is found through a hybrid recommendation technology, including based on content recommendation and collaborative filtering recommendation, and is transmitted to an actual intersection to improve the traffic control effect of the intersection. Meanwhile, a system knowledge base is further perfected by recording and processing actual intersection traffic information to improve the accuracy of a recommendation algorithm. According to the method, dynamic response can be made to short-term traffic state fluctuation variation and an emergency situation on an urban traffic road network, so that the method is particularly suitable for being used in an urban traffic control system.

Description

technical field [0001] The invention relates to the technical field of traffic signal control, in particular to a real-time selection method of a traffic signal control scheme based on hybrid recommendation. Background technique [0002] A well-functioning transportation system is closely related to the healthy development of cities. Traffic congestion has become a bottleneck problem in the development of large and medium-sized cities, and the time difference caused by the dynamic characteristics of the traffic system itself and the differences between the intersections themselves make a single intersection control scheme unable to satisfy all intersections on the road network. traffic control needs. Therefore, according to the traffic characteristics of different intersections at different times, implementing a differential intersection control scheme will optimize the operational efficiency of the entire traffic network and improve the overall control performance of the t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/07
Inventor 陈诚王飞跃陈松航李镇江
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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