Method for realizing nitrogen oxide and PM value detection

Abstract

The invention discloses a method for realizing nitrogen oxide and PM value detection, which comprises the following steps that a portable detector is started, and after the portable detector executesa self-checking program, Bluetooth, a wireless networking program, a positioning program and a remote communication program are started; the portable detector is in data connection with the wireless NOX sensor, the wireless PM sensor and the temperature sensor through the wireless networking program to obtain a NOX value, a PM value and a temperature value corresponding to a detected vehicle; whether the tail gas emission of the detected vehicle reaches the standard or not is judged through mathematical modeling and a moving average algorithm; the portable detector acquires real-time positioning data; the portable detector obtains the NOX average value of the detected vehicle within the set mileage and time through an OBD module and a CANBUS; and the obtained data are packaged and uploadedto a monitoring platform through a remote communication program. The system is convenient to carry and operate, real-time positioning monitoring and blind area reporting are achieved, and the nitrogen and oxygen value of tail gas emission of the fuel vehicle is collected in real time; and a nitrogen oxide detector and a PM value detector are integrated.

Description

technical field [0001] The invention relates to the field of detection instruments, in particular to a method for realizing the detection of nitrogen oxides and PM values. Background technique [0002] The air pollution caused by vehicle exhaust is becoming more and more serious, affecting people's healthy life and destroying the ecological environment. As one of the main sources of air pollution, motor vehicle exhaust emits hundreds of pollutants, the main harmful substances include carbon monoxide CO, nitrogen oxides NOX, hydrocarbons HC and fine particulate matter PM. According to the "Annual Report on Environmental Management of Motor Vehicles in China" released by the Ministry of Environmental Protection, NOx (nitrogen oxides) and PM (fine particulate matter) emitted by heavy-duty vehicles (mainly including medium and heavy trucks and large and medium-sized buses) in the country account for the total emissions of motor vehicles. About 80% of the total volume, and the v...

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a method for realizing the detection of nitrogen oxides and PM values, which solves the problem that the existing nitrogen oxide detectors and PM value detectors in the market are separated in the prior art and can only be detected separately, and one piece of equipment cannot Simultaneously detect NOX value and PM value, and the detection instruments are all wired and heavy, which is inconvenient for law enforcement personnel to carry and operate

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