Array type FPGA traffic state prediction and control system combined with discrete speed model

Abstract

The invention discloses an array type FPGA traffic state prediction and control system combined with a discrete speed model. The array type FPGA traffic state prediction and control system combined with the discrete speed model is used for solving the technical problem that an existing road entrance ramp controller has poor practicability. According to the technical scheme, road traffic parameters which meet actual road information to a greater extent are adjusted in time according to actual operation conditions of a highway in different time periods; a hardware implementation platform of a traffic state prediction calculation core is accomplished by an array type FPGA structure, and a parallel processing structure of the hardware implementation platform can rapidly predict the traffic states of road segments of the highway, rapidly respond to changes of traffic flow operation parameters, and carry out rapid feedback and evaluation on the control effect of a control scheme selected by the controller; by the adoption of the control scheme selected according to the predicted road traffic state, an entrance ramp regulating rod of a regulated road segment is controlled to be opened or closed, the time allowing passage of vehicles is regulated, and feedback and evaluation are carried out through repeated prediction calculation of an array type FPGA. The array type FPGA traffic state prediction and control system can rapidly adapt to changes of highway traffic information.

Description

technical field [0001] The invention relates to an array type FPGA traffic state prediction and control system, in particular to an array type FPGA traffic state prediction and control system combined with a discrete speed model. Background technique [0002] Expressways can attract, guide and separate a large number of transit traffic, realize large-flow, fast and long-distance traffic flow, reduce traffic pressure in urban central areas, and alleviate urban traffic congestion. It has played an irreplaceable role as a skeleton road network. However, with the rapid growth of expressway traffic volume, the traffic density of expressways is increasing, and the road capacity tends to be saturated during peak periods and even non-peak periods. Congestion and traffic jams are restricting, and the traffic accidents, environmental pollution and waste of resources caused by them have become important problems to be solved urgently: the section of the expressway with relatively dens...

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the shortcomings of poor practicability of existing road entrance ramp controllers, the present invention provides an array FPGA traffic state prediction and control system combined with a discrete speed model

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