Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Coordinated Control Method for Urban Arterial Roads Based on Adaptive Iterative Learning Control

An iterative learning control and self-adaptive iterative technology, applied in traffic control systems, traffic control systems of road vehicles, instruments, etc., can solve the problems of increased calculation amount, ineffective use of traffic demand changes and daily repetition characteristics, and achieve excellent results , Reduce the amount of real-time calculations and improve traffic efficiency

Active Publication Date: 2020-10-02
ZHEJIANG UNIV OF TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these research results did not effectively use the daily repetition characteristics of traffic demand changes, and with the expansion of the road network scale, the calculation amount increased rapidly

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Coordinated Control Method for Urban Arterial Roads Based on Adaptive Iterative Learning Control
  • A Coordinated Control Method for Urban Arterial Roads Based on Adaptive Iterative Learning Control
  • A Coordinated Control Method for Urban Arterial Roads Based on Adaptive Iterative Learning Control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be further described below by means of the accompanying drawings and examples.

[0029] Such as figure 1 An urban road traffic area that uses the method of the present invention to include several consecutive adjacent intersections as shown, there are 3 intersections, expressed as {1,2,3} with a sequence of natural numbers, wherein the east-west road is the main road, and the north-south The road is a secondary trunk road or a branch road, and the east-west flow is generally significantly greater than the north-south flow. Define the uplink direction from west to east, and the downlink direction from east to west. The phases of traffic flow at each intersection are divided as follows: Phase 1 is going straight from east to west and turning right; Phase 2 is turning left and right from east to west; Phase 3 is going straight and turning right from north to south; Phase 4 is turning left and turning right from north to south.

[0030] A method...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An adaptive ILC (iterative learning control) based coordinated control method for urban main roads comprises: a. determining a key intersection: for the controlled main roads, the intersection with the largest traffic demand is determined as the key intersection; b, initializing the common signal period, green time ratio and phase difference; c, optimizing the green time ratio at key intersections; d, optimizing the green time ratio at non-critical intersections; e, performing circulation, and repeating steps c and d every 3-5 signal cycles. According to the control method, the intersections are taken as a control object and are coordinated in pairs by flow correlation between the upstream and downstream intersections, green time of each phase of a traffic light is calculated with an ILC method according to real-time vehicle flow conditions, and finally, closed-loop controller parameters are set in real time by an unfalsified strategy. The real-time calculation amount of main road control is reduced, the traffic efficiency of the main roads is improved, the effect is better than that with the traditional timing control scheme, and the effective method is provided for coordinated control of the urban main roads.

Description

technical field [0001] The invention relates to the technical field of traffic signal control, in particular to a coordinated control method for urban main roads based on adaptive iterative learning control. Background technique [0002] With the development of our country's social economy and the improvement of people's living standards, more and more cars have entered ordinary families, and problems such as traffic accidents, traffic congestion, environmental pollution and energy consumption have become increasingly serious. Travel time, travel safety, environmental quality and The quality of life is restricted by traffic conditions. [0003] Urban road traffic signal control is an extremely important aspect in modern urban traffic management, and its management and control level will directly affect the effect of urban road traffic operation. In the urban road network, the main road bears a huge traffic load. Therefore, it is the focus of urban traffic smoothing measures...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/081
CPCG08G1/081
Inventor 沈国江陈文峰杨曦刘志朱李楠刘端阳阮中远
Owner ZHEJIANG UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com