Measuring device and measuring method for exhaustion blackness of motor vehicle
A technology for motor vehicles and flue gas, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve problems such as the difficulty in accurately measuring the blackness of motor vehicle exhaust, and achieve the effects of simple structure, convenient operation, and simple system composition and structure
Active Publication Date: 2018-11-23
WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI
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Problems solved by technology
Even if the electronic Ringelmann blackness meter is used to record the smoke of motor vehicles by taking photos, it is difficult to accurately measure the blackness of motor vehicle exhaust because the smoke is superimposed with complex background images
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[0028] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the examples. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0029] Such as figure 1 with figure 2 As shown, the motor vehicle smoke blackness measurement device includes an imaging unit 1, a data processing unit 2, a display unit 3, an illumination light source 4 and an equatorial mount 5;
[0030] The lighting source 4 is used to emit light to irradiate the smoke of the motor vehicle;
[0031] The imaging unit 1 is used to take images of the set area where the motor vehicle chimney is located. The smoke emitted by the motor vehicle chimney falls into the above set area, and the grayscale image Y, And the grayscale image X after the smo...
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The invention discloses a measuring device for exhaustion blackness of a motor vehicle. The measuring device comprises an imaging unit, a data processing unit, a display unit, an illumination light source and an equatorial telescope. The invention also discloses a measuring method for the exhaustion blackness of the motor vehicle. According to the measuring device and the measuring method disclosed by the invention, two states of gas exhaust and no gas exhaust of the motor vehicle are respectively imaged; two images are differentiated, and environmental background image information is deductedto obtain a blackness image with smoke gas. The measuring device and the measuring method have the advantages of simple structure, convenience in operation, objective and accurate detection result and the like.
Description
technical field [0001] The invention relates to the field of motor vehicle tail gas pollution emission monitoring, in particular to a device for measuring the blackness of smoke from a motor vehicle, and also to a method for measuring the blackness of smoke from a motor vehicle. Background technique: [0002] With the development of transportation technology and demand, the proportion of motor vehicle exhaust emissions to air pollution is increasing day by day. Detection brings great difficulty and is a technical bottleneck in the construction of a regulatory system. [0003] A lot of technological exploration has been carried out at home and abroad. At present, the detection of vehicle exhaust emissions in various places generally adopts the simple working condition sampling detection method, that is, under the designated testing places and testing conditions, the exhaust emissions of motor vehicles are sampled, and the smoke particulate matter After enrichment, weigh with...
Claims
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IPC IPC(8): G01N15/00
CPCG01N15/00G01N2015/0096
Inventor 李发泉刘林美武魁军艾勇陈晶于光保陈振威熊远辉段为民
Owner WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI