Motor vehicle exhaust telemetering system

Abstract

The invention provides a motor vehicle exhaust telemetering system, and belongs to atmospheric pollution source monitoring equipment. The problems that tail gas of an existing motor vehicle is difficult to monitor, the detection range of the monitoring equipment is small, arrangement is troublesome, and debugging is complicated are solved. The motor vehicle exhaust telemetering system is providedwith a laser emission module and an ultraviolet emission module, data of CH, NO, CO and CO2 can be monitored simultaneously, and the monitoring range is wide; meanwhile, an integrated measuring cell which is constituted by a telemetering host and an optical reflecting unit is adopted as a monitoring point, arrangement is simple, and during debugging, what is needed is to simply debug the optical reflecting unit.

Description

technical field [0001] The invention relates to the field of exhaust remote measurement, in particular to a motor vehicle exhaust remote measurement system. Background technique [0002] Motor vehicle exhaust pollution has become an important factor affecting the air quality of my country's cities. With the continuous increase in the number of motor vehicles and the release of the policy of exempting the exhaust of new vehicles within six years, the remote sensing detection technology of motor vehicle exhaust has become the key to improving the supervision and efficiency of vehicle exhaust emissions. important means. The "Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollutants" clearly stipulates that starting from January 1, 2016, real-time exhaust remote sensing detection of motor vehicles on the road can be carried out without affecting traffic. In recent years, various localities have successively promulgated local standards for remo...

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Problems solved by technology

[0003] The prior art disclosures all adopt two modules to detect automobile exhaust (CH, CO, CO2 and NO). For example, the patent US005319199 adopts the NDIR (non-dispersive infrared) module to measure CO, CO2 and CH, and uses the ultraviolet module to detect NOx; Patent CN 1260571 C uses a laser module to measure CO and CO2, and an ultraviolet module to measure HC and NO; the scheme of two modules is used, the integrated system is relatively large, and two sets of optical path systems are used, which is costly; at the same time, the light adjustment is cumbersome during on-site installation ; In addition, each module needs to be calibrated before the test, which is time-consuming and complicated

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