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Device and method for measuring urban road flow velocity based on license plate recognition

A technology for flow velocity measurement and license plate recognition, applied in the field of intelligent transportation and intelligent transportation services, it can solve the problems of navigation route update, easy damage, small coils, etc., achieve good economic and social benefits, ease traffic congestion, and reduce peak load. Effect

Active Publication Date: 2020-04-14
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to many problems such as the small road coverage of the fixed-point coil device, the coil is easily damaged, and the number of GPS floating vehicles is often insufficient, the calculation and prediction of the flow velocity are not accurate enough to meet the needs of vehicle intelligent navigation.
[0004] The traditional navigation algorithm is to find the shortest path between the starting point and the end point or choose the main line as much as possible. The input of the route planning algorithm is the static boundary conditions such as the length of the route, the priority of the main road, and the avoidance of toll stations. The calculated navigation route cannot be based on the urban traffic status. updated in real-time

Method used

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  • Device and method for measuring urban road flow velocity based on license plate recognition
  • Device and method for measuring urban road flow velocity based on license plate recognition
  • Device and method for measuring urban road flow velocity based on license plate recognition

Examples

Experimental program
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Effect test

Embodiment 1

[0035] This embodiment provides a kind of urban road velocity measurement device based on license plate recognition, that is, based on the license plate image acquisition and processing system of the current road network to realize road velocity measurement, which includes:

[0036] The traffic information collection module collects traffic flow information such as license plate images, time, camera numbers, lane types, and driving directions when vehicles pass through the monitoring section.

[0037] The traffic information acquisition module of this embodiment can be realized by the license plate data acquisition equipment, which can include electronic police, smart checkpoint, traffic monitoring, skynet monitoring and optical fiber transceiver, etc.; figure 1 As shown, the traffic information collection module can collect vehicle information passing through the monitoring section of camera node A, and vehicle information passing through the monitoring section of camera node ...

Embodiment 2

[0045] refer to figure 2 , the present embodiment provides a device for measuring urban road flow velocity based on license plate recognition. From a hardware point of view, the device for measuring urban road flow velocity based on license plate recognition may include: a license plate data collection device, a dedicated roadside communication network and Back-end data management center.

[0046] The license plate data acquisition equipment is connected to the back-end data management center through the dedicated roadside communication network to complete the transmission of license plate image data and other data (such as time, camera number, lane type, driving direction and other traffic flow information), and the back-end data management center License plate recognition, traffic information processing and traffic state prediction are realized based on license plate image data.

[0047] Described license plate data acquisition equipment comprises electronic police 111, sm...

Embodiment 3

[0050] The present embodiment provides a kind of urban road velocity measuring method based on license plate recognition, and it can adopt the urban road velocity vehicle system based on license plate recognition described in embodiment 1, and comprises the following steps:

[0051] Step 1. The traffic information collection module collects traffic flow information such as license plate images, time, camera numbers, lane types, and driving directions when vehicles pass through the monitoring section.

[0052] Such as figure 1 As shown, the traffic information collection module can collect vehicle information passing through the monitoring section of camera node A and vehicle information passing through the monitoring section of camera node B, including license plate and passing time. Moreover, when the network fails, the above-mentioned traffic flow information is stored locally. After the network is restored, the data is automatically resumed. The local storage format of all ...

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Abstract

The invention discloses a device for measuring the urban road flow velocity based on license plate recognition, which comprises a traffic information acquisition module, a traffic information management module, a road section flow velocity calculation module, a traffic state evaluation module, a traffic state prediction module and a traffic information service module. The device for measuring theurban road flow velocity based on license plate recognition can realize urban road flow velocity measurement, traffic state real-time analysis and traffic state prediction, can provide intelligent navigation for smart cars of the smart city, enables the vehicles to intelligently select the most efficient path and provides the real arrival time for the vehicles. The invention further discloses a method for measuring the urban road flow velocity based on license plate recognition.

Description

technical field [0001] The invention relates to the field of intelligent transportation, in particular to a device and method for measuring urban road flow velocity based on license plate recognition, belonging to the field of intelligent transportation services. Background technique [0002] With the increase of car ownership and traffic flow, urban road infrastructure has been unable to meet the rapidly growing traffic demand. Traffic congestion occurs frequently, resulting in more traffic accidents, economic losses, and even endangering people's lives. Due to the limitation of the urban road area ratio, it is difficult to solve the traffic congestion problem simply by expanding the road network. In this context, in order to enable travelers to efficiently use the existing road system, it is necessary to analyze and predict the traffic status of urban roads in a timely manner, and provide real-time information for vehicle intelligent navigation. Among them, real-time traf...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/0968G08G1/01G08G1/017G08G1/065
Inventor 邱少波李谦和卫民吕贵林李朴
Owner CHINA FIRST AUTOMOBILE
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