Distributed prediction control method for traffic road network based on region division
A technology of regional division and predictive control, which is applied to the traffic control system of road vehicles, traffic control system, traffic flow detection, etc. It can solve the problem that the road network modeling method is not clear, perfect, strong information coupling, and lack of timing distribution of signal lights. optimization and coordination methods to achieve the effect of improving active safety and comfort, ensuring optimality, and saving travel time
A technology of regional division and predictive control, which is applied to the traffic control system of road vehicles, traffic control system, traffic flow detection, etc. It can solve the problem that the road network modeling method is not clear, perfect, strong information coupling, and lack of timing distribution of signal lights. optimization and coordination methods to achieve the effect of improving active safety and comfort, ensuring optimality, and saving travel time
CN109544922AActive Publication Date: 2019-03-29SOUTH CHINA UNIV OF TECH
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[0023] like figure 1 Shown is a specific flow chart of a distributed predictive control method based on regional division of the traffic road network, and the specific steps of the method include:
[0024] S1. Establish a microscopic model of a single intersection in the traffic system.
[0025] Analyze the status of a single intersection in the traffic system, and extract the correlation between variables in a single intersection;
[0026] Specifically, with the length of the queuing fleet as the output and the duration of the street lights as the input, a model of a single intersection of the traffic system is established;
[0027] S2. Analyze the associated topological structures of multiple intersections, and establish a microscopic model of a single road section.
[0028] The established model of a single road segment needs to be able to represent most road segments of the urban traffic network and contain as detailed parameters as possible, so that the macro control mo...
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The invention discloses a distributed prediction control method for a traffic road network based on region division. The method comprises the steps of: establishing a microscopic model of a single intersection of a transportation system; analyzing an associated topological structure of the plurality of intersections, and establishing a microscopic model of a single road segment; establishing a traffic road network model by taking an intersection as a basis, and performing distributed region division for the obtained traffic road network model; performing analysis of the distributed predictivecontrol structure for the traffic road network model after region division; and for the region division features of the traffic road network, performing coordination of a distributed controller for the traffic road network. The distributed prediction control is applied to the distributed collaborative optimization of an urban traffic system intersection, related theoretical achievements are applied in an urban intelligent traffic system to greatly improve the intelligent degree of the modern vehicles so as to effectively improve the active safety and the comfort of driving, facilitate improvement of the road utilization, save travel time and facilitate energy conservation and emission reduction.
Description
technical field [0001] The invention relates to the field of system modeling and control, in particular to a distributed predictive control method for a traffic road network based on area division. Background technique [0002] Regional coordinated control of the traffic road network is mainly aimed at the traffic flow control of the main roads in the city. The traffic conditions of the main roads undoubtedly have an important impact on the entire urban traffic. Alleviating traffic congestion on the main roads can also improve many roads near the main roads to a certain extent. traffic conditions. There are two main research directions for arterial coordinated control. One is to adjust the green light time of each intersection on the arterial road, so that vehicles can pass through as many intersections as possible when driving along the main road, and reduce the parking time; the other is to reduce the parking time. Vehicle delay time, shorten the queue length and other wa...
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Patent Timeline
29 Mar 2019
Publication
CN109544922A
- IPC
- G08G1/01; G08G1/081
- CPC
- G08G1/0145; G08G1/081
- Inventors
- 张浪文; 谢巍