Road crossing signal dynamic regulation method, device and system

A technology of dynamic adjustment and intersection, applied in the direction of traffic signal control, etc., can solve the problem that the signal timing scheme of the intersection cannot meet the requirements of the intelligent transportation system in advance, so as to improve traffic efficiency, take into account stability, and avoid frequent effect of change

Active Publication Date: 2016-07-13
吴建平
View PDF5 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the signal timing scheme of the intersection in the prior art cannot meet the requirements of the intelligent transportation system in advance.

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
  • Road crossing signal dynamic regulation method, device and system
  • Road crossing signal dynamic regulation method, device and system
  • Road crossing signal dynamic regulation method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] This embodiment provides a method for dynamically adjusting intersection signals based on online traffic simulation, which is used in intersections of urban road networks to dynamically adjust signals at intersections, not just according to a predetermined timing scheme. The green time of the signal light is adjusted.

[0054] The main concept of online traffic simulation is to obtain key data such as traffic flow collected by the traffic data center in real time through the data interface, to evaluate and predict the traffic state through the real-time rapid traffic simulation technology, to quickly test different traffic management schemes, and to output various traffic management schemes. It can become a powerful real-time plan decision support tool to realize the online integration of traffic information and management plan selection. The online simulation system generally includes modules such as data reception and processing, dynamic OD inversion, online simulatio...

Embodiment 2

[0081] This embodiment provides an intersection signal dynamic adjustment device based on online traffic simulation, the structure is as follows figure 2 shown, including:

[0082] The obtaining unit 01 is used to obtain the current signal timing scheme, and obtain the traffic data of the intersection within the preset time period;

[0083] The current parameter calculation unit 02 is used to calculate the current traffic operation parameters under the current signal timing scheme according to the traffic data;

[0084] The optimal signal timing scheme acquisition unit 03 is used to perform signal optimal timing calculations according to the current signal timing scheme and the traffic data to obtain the optimal signal timing scheme;

[0085] The simulation parameter acquisition unit 04 is used to perform traffic simulation for the optimal signal timing scheme, and obtain simulated traffic operation parameters;

[0086] The optimal signal timing scheme output unit 05 is use...

Embodiment 3

[0093] This embodiment provides a dynamic adjustment system for intersection signals based on online traffic simulation, which is suitable for dynamically adjusting intersections using the method in Embodiment 1. The system in this embodiment includes:

[0094] The vehicle detector is arranged at the entrance of the intersection, and detects the traffic data of the intersection, and the traffic data includes vehicles passing the intersection and their operating conditions.

[0095] Simulation controller, the simulation controller in the present embodiment is the device in embodiment 2, is used for receiving the traffic data of the intersection that described vehicle detector detects, and calculates the current traffic operation parameter under the current signal timing scheme; Carry out signal optimization timing calculation according to the traffic data, obtain the optimal signal timing scheme, and carry out traffic simulation for the optimal signal timing scheme, and obtain s...

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 present invention provides a road crossing signal dynamic regulation method based on online traffic simulation. The method comprises: calculating the current traffic operation parameters in the current signal timing scheme according to the current traffic flow data; performing signal optimization timing calculation according to the current signal timing scheme and the traffic data, and obtaining an optimized signal timing scheme; performing traffic simulation aiming at the optimal signal timing scheme, and obtaining simulated and outputted traffic operation parameters; and finally, comparing the simulated traffic operation parameters with the current traffic operation parameters, if the simulated traffic operation parameters exceed a presetting threshold, outputting the optimal signal timing scheme, and performing road crossing signal timing through adoption of the optimal signal timing scheme. The road crossing signal dynamic regulation method, device and system are able to provide different signal timing schemes for signal lights at the crossing aiming at road traffic flow at different time periods so as to improve the passing efficiency of a crossing and ensure that the crossing is able to operate in the optimal mode all the time in the condition that the road crossing operates at the optimal timing scheme.

Description

technical field [0001] The invention relates to the field of traffic control, in particular to a method and system for dynamic adjustment of intersection signals based on online traffic simulation. Background technique [0002] In recent years, my country's social economy has continued to develop rapidly, and the transportation industry has also maintained a relatively rapid growth. Transportation has become an indispensable part of people's work and life, and plays an important role in ensuring the normal operation of society. Since the last century, my country has gradually improved its transportation network nationwide, but the growth rate of motor vehicles is still much higher than that of roads and other transportation facilities. Large and medium-sized cities have thus produced a series of traffic problems, such as traffic jams, traffic exhaust pollution, traffic safety accidents, etc., resulting in certain casualties and economic losses. Facts have proved that relyi...

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
CPCG08G1/08
Inventor 吴建平周杨杜怡曼贾宇涵
Owner 吴建平
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap