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

Urban traffic junction signal lamp self-adaption control method based on vehicle-mounted data

A technology of adaptive control and on-board data, applied in the direction of controlling traffic signals, etc., can solve the problems of non-existence, and achieve the effect of reducing vehicle delays, improving operating efficiency and safety

Inactive Publication Date: 2014-10-01
UNIV OF SHANGHAI FOR SCI & TECH
View PDF8 Cites 44 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, there is currently no effective method to monitor the unsaturated state and oversaturated state of the road at the intersection based on vehicle data, and to perform adaptive control on the signal lights at the intersection.

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
  • Urban traffic junction signal lamp self-adaption control method based on vehicle-mounted data
  • Urban traffic junction signal lamp self-adaption control method based on vehicle-mounted data
  • Urban traffic junction signal lamp self-adaption control method based on vehicle-mounted data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] figure 1 It is a schematic diagram of the connection between the acoustic emission sensor and the acoustic emission collection system in the embodiment of the present invention.

[0030] Step S1-1:

[0031] The system is initialized and goes to step S1-2.

[0032] Step S1-2:

[0033] Read the geometry of the intersection, the number of lanes, and the function of the lanes, and proceed to step S1-3.

[0034] Step S1-3:

[0035] Determine the control structure of the intersection and proceed to step S1-4.

[0036] Step S1-4:

[0037] It is judged whether the lane of the intersection is saturated, if it is an unsaturated state, go to step S1-5; if it is an oversaturated state, go to step S1-8.

[0038] Step S1-5:

[0039] Determine the phase direction sequence to make a phase switching sequence diagram, which contains the various phase directions of the intersection. According to the phase direction, the signal lights are set up in each direction of the intersection. According to the pha...

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

The invention provides an urban traffic junction signal lamp self-adaption control method based on vehicle-mounted data. By means of the method, self-adaption control over a signal lamp of an intersection based on the vehicle-mounted data for the unsaturated state and the oversaturated state of the upstream road in front of the middle junction of the intersection with at least one junction is achieved. The urban traffic junction signal lamp self-adaption control method includes the first step of reading the geometrical shape, the lane number and lane functions of the intersection, the second step of judging whether the junction is in the unsaturated state or the oversaturated state according to the vehicle mounted data, and the third step of utilizing an unsaturated state optimization method when the junction is judged to be in the unsaturated state, and utilizing an oversaturated state optimization method when the junction is judged to be in the oversaturated state.

Description

Technical field [0001] The invention relates to the field of urban road traffic intersection signal lamp control, in particular to the vehicle-mounted data-based urban traffic intersection signal lamp for adaptive control of the signal lamp of the intersection based on the vehicle-mounted data for the unsaturated state and the over-saturated state of the road at the intersection in the field Adaptive control method. Background technique [0002] Urban traffic congestion is getting more and more serious. The annual direct and indirect economic losses caused by traffic congestion in large cities with more than one million people in my country are about 160 billion yuan, which is equivalent to 3.2% of the GDP. Traffic control is one of the most important technical measures for the most intuitive and obvious regulation of traffic flow, improving its congestion, improving its safety, and even energy saving and emission reduction. The adaptive control of urban road intersections optimi...

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 Applications(China)
IPC IPC(8): G08G1/08
Inventor 姚佼韩印顾佳磊刘婧邢冰曹交交汪圣伟史册马世博
Owner UNIV OF SHANGHAI FOR SCI & 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