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A Method for Measuring the Impact of Traffic Flow on Urban Pollution

A traffic flow, urban technology, applied in the direction of traffic control system, road vehicle traffic control system, computing, etc., to achieve the effect of minimizing pollution

Inactive Publication Date: 2011-12-21
SUZHOU LIANGJIANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A method that can effectively detect the impact of traffic flow on urban pollution in real time has not yet been seen.

Method used

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  • A Method for Measuring the Impact of Traffic Flow on Urban Pollution
  • A Method for Measuring the Impact of Traffic Flow on Urban Pollution
  • A Method for Measuring the Impact of Traffic Flow on Urban Pollution

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] (1) Real-time collection of traffic conditions

[0030] The intersection camera is mainly used for real-time image acquisition, and the analog signal is converted into a digital signal.

[0031] (2) Acquisition and summary of vehicle information, the basic process can be found in Figure 5 .

[0032] 1. Vehicle identification

[0033] Mainly use intersection cameras for real-time image acquisition, which will be transmitted to the acquisition system server.

[0034] 2. License plate location

[0035] For the license plate location of the recognized car, such as Figure 4 shown.

[0036] Refer to the schematic diagram of license plate rough positioning: After rough positioning, there may be several candidate areas. At this time, it is necessary to determine the license plate area through precise positioning.

[0037] Accurate positioning uses the binary image of the candidate area to be scanned, each row is recorded as a jump from white to black or from black ...

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Abstract

The invention discloses a method for calculating effect of traffic flow on city pollution. The effect on the city pollution is calculated according to the vehicle shape of the traffic flow; 1) fast identifying the sizes of vehicles, wherein the sizes of the vehicles are classified by the classification technology based on the under color of a license; the vehicle of which the under color of the license is blue is a car and the vehicle of which the under color of the license is yellow is a cart; 2) after determining the size of the vehicle according to the under color of the license, setting the emission factors according to the speeds of the vehicles; 3) turning the factors into the identified or given different emission indexes of the vehicles to generate the concentration of exhaust dust and carbon monoxide (CO) of a road; and performing difference approximation on each road region to calculate concentration by taking an advection equation as a pollution model ; and 4) defining the concentration of the exhaust dust according to the transmission of inertia light,; performing conversion on the transmission (VI%) of 100m distance by natural logarithm; and calculating the CO concentration in PPM.

Description

technical field [0001] The invention relates to image recognition of objects and a method for measuring and calculating automobile sewage discharge. Background technique [0002] As one of the main means of transportation in modern society, automobiles are widely used in various fields of people's production and life. The total number of automobiles is increasing day by day, but more and more problems are brought about. With the increase of automobiles, the exhaust gas emitted by automobiles seriously affects the quality of air. [0003] According to reports, motor vehicle emissions have become the primary source of air pollution in Chinese cities. How to improve air quality is also one of the important issues to be solved in urban planning and urban development. The so-called automobile exhaust refers to the gas after gasoline combustion discharged from the rear of motor vehicles, which contains hundreds of different compounds, the main pollutants are solid suspended part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G01N21/59G08G1/017
Inventor 陈国庆杜悦
Owner SUZHOU LIANGJIANG TECH
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