Novel portable type diesel vehicle tail gas particulate road detection device and method

Abstract

The invention relates to a novel portable type diesel vehicle tail gas particulate road detection device and a method. The novel portable type diesel vehicle tail gas particulate road detection device comprises a DPF (diesel particulate filter), a radio frequency generator, a radio frequency receiver, an integrated control system device and a display device, wherein a filter body is arranged in the DPF; the radio frequency generator and the radio frequency receiver are respectively connected with the integrated control system device, and the integrated control system device is connected with the display device; specifically, the integrated control system device is used for performing Fourier transformation on a signal received by the radio frequency receiver, and converting to obtain energy spectrum, so as to obtain resonance frequency; the obtained resonance frequency is found according to a function relationship of preset radio frequency resonance frequency and carbon content, so as to obtain value of carbon loading amount in the DPF. The novel portable type diesel vehicle tail gas particulate road detection device has the advantages that the content of carbon smoke particles in the diesel vehicle tail gas can be accurately measured, the device can be used for a traffic management department to detect whether the content of the particulate in the heavy-duty diesel vehicle tail gas exceeds standard or not in the road detection process, the device is cooperated with the issuing of national standard VI, and the emission standard of diesel vehicle particulate is further standardized.

Description

technical field [0001] The invention relates to a road detection device and method, in particular to a novel portable diesel vehicle exhaust particle road detection device and method. Background technique [0002] Compared with gasoline engines, diesel engines have lower fuel consumption and higher power, so they are widely used in automobiles due to their excellent power, economy, and durability. The number of diesel vehicles in my country has continued to increase rapidly in recent decades , but the emission of particulate matter is 30-50 times that of gasoline engines, making PM from heavy-duty diesel vehicles, which only accounts for 3.66% of the total number of motor vehicles, account for 90% of total motor vehicle emissions. These emitted particles have caused severe smog in China problem, it will also cause chronic lung disease in people, and even more than 90% of the components on the surface of the exhaust particles are carcinogens. Therefore, it is very important to ...

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Problems solved by technology

[0003] At present, some post-treatment methods are mainly used to capture and regenerate particulate matter, such as DPF particulate traps, which can capture 90% of exhaust particulate matter. Problems such as replacement and fraud during the annual inspection of diesel vehicles have caused many diesel vehicle exhaust particles to be directly discharged without treatment, which seriously hindered the introduction and implementation of national diesel vehicle emission standards, and caused serious smog problems and Environmental pollution, so in order to deal with the above problems, it is imperative for the traffic control department to conduct road inspections on heavy-duty diesel vehicles

The opaque blackness detector used in the annual inspection is not suitable for the road inspection of heavy-duty diesel vehicles by the traffic control department due to its complex structure, low precision, high requirements for the detection environment, inconvenient portability and high price.

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