Traffic signal control system and method based on software definition

Abstract

The invention discloses a traffic signal control system and method based on software definition. The system comprises a signal lamp, a roadside unit and a control unit, the roadside unit is used for sending a request signal to the control unit and receiving a response signal of the control unit, and the request signal comprises position information and identity information of the roadside unit; the control unit is used for receiving the request signal and sending the response signal to the road side unit, the response signal comprises control information, so that the road side unit can controlthe signal lamp according to the control information, and the control information is generated based on the position information and the identity information. Therefore, soft and hard decoupling, control and execution are separated, traffic signal control is intelligently realized by applying technologies such as cloud computing and big data, and dependence of control logics on specific hardwareis broken through.

Description

technical field [0001] The invention belongs to the field of urban traffic signal control, in particular to a software-defined traffic signal control system and method. Background technique [0002] With the development of cloud computing, big data, Internet of Things, 5G and other related ICT technologies, and the emergence of new traffic forms such as intelligent networked vehicles, new energy vehicles, and shared travel, the existing traffic signals have been difficult to meet the complex traffic control. and service requirements. In particular, the city brain is increasingly becoming the infrastructure of the city. On the basis of full data, full network, full video, and real-time, it processes the massive data of the city, thereby intelligently driving city management and services. The purpose is to form and maintain a better future. urban ecosystem. Urban traffic has a significant impact on the urban ecosystem, and ecology has put forward higher requirements for the ...

AI Technical Summary

Problems solved by technology

[0003] The function of the signal machine used in the market is tightly coupled with its own hardware, the interconnection ability is poor, and the interface ability with the cloud is weak, and the flexibility of the software cannot be fully utilized

Due to poor versatility, frequent upgrades and renovations are required for ever-changing traffic demands, which greatly affects traffic safety

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