A vehicle exhaust gas monitoring system

Abstract

The invention discloses a monitoring system for motor vehicle tail gas. The monitoring system comprises an industrial network camera, an infrared camera instrument, a tail gas remote-sensing device, an electronic holder and an industrial personal computer, wherein the industrial personal computer is mounted besides a road and is respectively connected with the industrial network camera, the infrared camera instrument, the tail gas remote-sensing device and the electronic holder; the tail gas remote-sensing device is linked with the electronic holder; the infrared camera instrument is used for measuring temperature of a tail gas pipe of a vehicle, so as to position the tail gas pipe of the vehicle. According to the monitoring system for the motor vehicle tail gas provided by the invention, the infrared camera instrument can be used for entirely covering the tails of motor vehicles running on roads at monitoring points from top to down, so that the position of the tail gas pipe of the motor vehicle can be accurately positioned through an infrared heat energy imaging technology; a plurality of lanes can be monitored by arranging the plurality of camera instruments. With the adoption of the monitoring system for the motor vehicle tail gas, no optical equipment needs to be mounted on the road surface; the remote-sensing device and the camera instrument can be mounted above the roads, so that no road space is occupied; meanwhile, the defect that the monitoring equipment in the prior art is easily influenced by an environment can be overcome.

Description

technical field [0001] The invention belongs to the field of environmental technology, and in particular relates to a motor vehicle exhaust gas monitoring system. Background technique [0002] Motor vehicle exhaust remote measurement technology adopts long optical path absorption spectroscopy, that is, the light source emitter directly emits the light source to the reflector on the opposite side of the road, and then reflects it to the detector. When the vehicle passes through the beam, the exhaust gas absorbs the specific wavelength spectrum , the light source detector calculates the instantaneous emission concentration of vehicles passing through by analyzing the spectral changes of the received light. Since the pollutants discharged from the exhaust pipe of motor vehicles will rapidly diffuse into the surrounding air from the moment of discharge, the concentration of exhaust gas will continue to dilute and change continuously; however, for the same exhaust plume, the rela...

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Problems solved by technology

The disadvantage of this method is: it is impossible to locate the exhaust pipe of the motor vehicle; the height of the exhaust pipe of the motor vehicle driving on the road is different, if the exhaust pipe is not in the optical path range of remote sensing monitoring, the remote sensing monitoring equipment cannot monitor; in reality, there are many urban roads For two-lane or multi-lane, when the road is multi-vehicle parallel or the light path is blocked by vehicles in the side lane, it cannot be monitored; the monitoring equipment on the roadside needs to occupy the road space; the optical monitoring equipment on the roadside is vulnerable to road vibration, dust and rain erosion, etc. influences

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