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An optimal control method for intersection signals in the environment of Internet of Vehicles

A technology for optimizing control and intersections, applied in the field of Internet of Vehicles, which can solve problems such as difficulty in reflecting real-time changes in traffic flow, large data errors, and high investment in installation and maintenance of fixed detectors.

Active Publication Date: 2019-01-29
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the traffic signal control systems that have been adopted in our country use fixed detectors on the road or on the side of the road to collect traffic flow information. large impact, and the installation and maintenance of fixed detectors also require a lot of cost
In addition, the detector data relied on by the traditional signal control method has a large granularity in time and space, and it is difficult to reflect the real-time changes of traffic flow, so it cannot meet the actual traffic travel needs in different time periods.

Method used

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  • An optimal control method for intersection signals in the environment of Internet of Vehicles
  • An optimal control method for intersection signals in the environment of Internet of Vehicles
  • An optimal control method for intersection signals in the environment of Internet of Vehicles

Examples

Experimental program
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Effect test

Embodiment

[0059] This embodiment is based on the following assumptions:

[0060] (1) The embodiment is in the environment of the Internet of Vehicles, and roadside units are installed at signalized intersections, and the communication range of the roadside units is the maximum transmission range of DSRC communication technology

[0061] (2) After the vehicle enters the communication range of the roadside unit, the on-board unit of the vehicle and the roadside unit can communicate in real time;

[0062] (3) Individual vehicles can transmit accurate speed information, spatial location information and operating status information to the roadside unit;

[0063] (4) The speed of information transmission and data processing is fast enough, and the delay in the intermediate process can be ignored;

[0064] (5) The feasible phase set at the signalized intersection has been determined, and the traffic flows of the same phase are compatible with each other;

[0065] (6) The impact of pedestrian...

Embodiment approach

[0066] The specific implementation method is as follows:

[0067] like figure 1 Shown is a block diagram of an intersection signal optimization control method under the Internet of Vehicles environment of the present invention. The real-time status information of the vehicle mainly includes the vehicle identification number, speed, spatial position and running status. When the vehicle enters the communication range of the roadside unit, the on-board unit will randomly generate a vehicle identification number for vehicle trajectory identification, but the identification number is only used when It is valid when the vehicle passes through the intersection; the vehicle's speed and position information are respectively obtained by the speed sensor installed near the differential and the on-board GPS receiver; the vehicle's speed is processed by a signal filter to obtain "0" or "1" Pulse signal, "1" indicates that the vehicle is running, and "0" indicates that the vehicle is in a ...

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Abstract

The invention discloses an intersection signal optical control method in an environment of Internet of vehicles. A signal timing plan is optimized by combining vehicle state information acquired at a signal intersection in real time, so that the delay time that a vehicle passes through the intersection is shortened. The method disclosed by the invention realizes an actual application of the technology of Internet of vehicles at the signal intersection, thereby favorably improving the traffic efficiency at the signal intersection.

Description

technical field [0001] The invention relates to the technical field of the Internet of Vehicles, in particular to an intersection signal optimization control method under the Internet of Vehicles environment. Background technique [0002] With the rapid development of my country's national economy, people's living standards are steadily improving, and the number of urban motor vehicles is also increasing year by year. In comparison, the construction of transportation infrastructure is slow, and it is difficult to meet the growing demand for transportation. As a result, serious traffic congestion problems have appeared in many areas of our country, especially in some large cities. Traffic congestion not only increases people's travel time and brings inconvenience to people's lives, but also generates a series of traffic accidents, environmental pollution, excessive energy consumption, etc., which seriously affects the efficient and orderly operation of the urban transportatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/07G08G1/08
CPCG08G1/07G08G1/08
Inventor 徐凌慧卢佳钟罡张健冉斌
Owner SOUTHEAST UNIV
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