Passive infrared imaging-based automobile exhaust visual real-time monitoring apparatus

Abstract

The invention discloses a passive infrared imaging-based automobile exhaust visual monitoring apparatus. An information acquiring and processing device mounted nearby a road is used to carry out real-time monitoring on vehicles, extracts exhaust monitoring information and license plate number information, and identifies and calculates the concentration of every characteristic gas component in the exhaust and the license plate number information through using a pattern recognition algorithm. The exhaust concentration and the license plate number are transmitted to a supervising system if the concentration of anyone gas in the exhaust exceeds standards. The real-time quantitative monitoring analysis of the exhaust is carried out to obtain the combustion efficiency of an engine, and the supervising system can be used to notify a standard-exceeding automobile owner in order to urge the automobile owner to maintain and reduce pollution. The apparatus comprises the information acquiring and processing device, a remote sending device, a power supply and heat dissipation device and a protection cover. The apparatus has the advantages of low monitoring cost, convenience in operation, realization of real-time continuous monitoring, and no external environment restriction.

Description

technical field [0001] The invention relates to the fields of gas monitoring and infrared image processing, in particular to a real-time monitoring system for automobile exhaust based on passive infrared imaging. Background technique [0002] Today, with the rapid development of the automobile industry, automobiles have become an indispensable means of transportation for people to travel. However, while automobiles bring great convenience to people, the gas components such as NOx and CO in the exhaust also cause serious pollution to the environment. Exceeding the concentration of harmful gases in exhaust gas not only means aggravating air pollution, but also means that the combustion efficiency of the engine is low, which will cause damage to the vehicle, increase the accident rate, and is not conducive to saving fuel. [0003] The environmental detection methods of motor vehicle exhaust include double idling method, steady state method, transient state method, simple transi...

AI Technical Summary

Problems solved by technology

However, there are serious limitations: whether the emission of a motor vehicle exceeds the standard usually refers to whether the exhaust gas exceeds the standard during the driving process of the vehicle, and the monitoring results of this method only reflect the emission situation of the vehicle at idle speed, and cannot monitor the exhaust gas in real time; and the detection No nitrogen oxides, but this kind of gas is extremely harmful. When the content in the air exceeds the standard, it can stimulate people's lungs and cause people to have respiratory diseases

Generally speaking, the above-mentioned methods all require manual operation of the exhaust gas detection device to detect specific vehicles under specific working conditions. Real-time monitoring cannot reflect the dynamic exhaust emission concentration of vehicles, the monitoring efficiency is relatively low, and the exhaust information cannot be transmitted to the supervision center in time to form effective big data information

[0008] Therefore, there are still deficiencies in the real-time monitoring of automobile exhaust, so it is necessary to further develop the passive infrared real-time monitoring technology of automobile exhaust

Images