Multilane motor vehicle exhaust remote measuring device

Abstract

A multilane motor vehicle exhaust remote measuring device comprises a vehicle road condition recognizing unit, a license plate recording unit, a vehicle velocity and acceleration measuring unit, a polluted gas monitoring unit by using infrared and ultraviolet absorption spectrometry and a control and data analysis / processing unit. The device can obtain the real-time condition of vehicle driving on one-way or two-way multilane pavement, accurately obtain various exhaust concentrations, velocity, acceleration and license plate number when only one vehicle drives on multiple lanes in a short time and complete preliminary exhaust analysis and license plate obtainment when a plurality of vehicles drive on multiple lanes simultaneously.

Description

technical field [0001] The invention relates to a multi-lane motor vehicle tail gas telemetry device, which belongs to the field of environmental technology. Background technique [0002] The motor vehicle exhaust remote measurement system can complete the exhaust emission detection under the normal operation state of the vehicle. Compared with the exhaust emission detection methods of the idle speed method and the working condition method, it can better reflect the actual emission situation of the road surface. The motor vehicle exhaust remote measurement device needs to pass the detection beam (IR or (and) UV) through the exhaust gas mass, so the light source transmitter and receiver should be placed on both sides of the road, or the transmitter and receiver should be placed on the same side of the road , the light reflector is on the other side of the road. The device can measure the exhaust emission of vehicles passing the detection beam on a single-lane road, and corre...

AI Technical Summary

Problems solved by technology

This situation is acceptable for experimental research, but it will be very difficult or even impossible to carry out exhaust emission detection under real road conditions on major urban roads, to screen high-emission vehicles without affecting normal driving on the road.

[0003] The method proposed by the existing multi-lane exhaust telemetry patent has great application limitations, or cannot be practically applied

For example, (1) install a reflector or some kind of device in the isolation pier between two lanes, and there are very few roads with isolation pier between each lane, so this method cannot be used on most roads (2) according to the existing method, install exhaust remote measurement equipment on both sides of the road, and use some algorithm to calculate the exhaust emission of each vehicle when two vehicles pass through the light beam at the same time. This kind of equipment has considerable uncertainty nature, it is difficult to practically apply

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