Management of vehicle exhaust gas
The Korea Environment Corporation is responsible.

In order to improve the atmospheric environment, we use a remote sensing device in the metropolitan area and close inspection area to measure the emissions of vehicles and select vehicles that exceed the emission limit.
Inspection and management to exceed the permissible emission levels vehicles contributes to the reduction of air pollutants

Remote Sensing Device (RSD) for On-Road Vehicle Emission Gas

Summary

• Measures gas emission of on-road vehicles using RSD in places under in-depth inspection such ad metropolitan areas and reports to local government of vehicle exceeding the permitted emission level for improvement. -> A measurement method introduced to improve air quality in urban areas by measuring the emission gas of vehicles driving without stopping a vehicle in order to relieve public inconvenience, such as causing traffic jams and the risk of traffic accidents caused by frequent inspections of forced stops.
• (Method) By measuring the absorption by projecting IR, UV light onto measuring material absorption band, estimate the concentration of CO, HC, NO, S/F

Related Laws

• CLEAN AIR CONSERVATION ACT Article 61
• ENFORCEMENT REGULATIONS OF THE CLEAN AIR CONSERVATION ACT Article 83

business information

• Remote sensing device for on-road vehicle emission gas and operating smart sign -> Operating of smart sign and Remote Sensing Device(RSD) for on-road vehicle
• Screening and notification to exceed the permissible emission levels
• Establishment and operation of vehicle emission intergrated management system for computerized processing of results
• Survey and selection of Measurement points
• Inspection and technical support of maintenance company

Setup Diagram

Configuration and measurement principles

Name	Device	Explanation
Source Detector Module (SDM)		The SDM houses two internal modules: the source and the detector. The source emits a beam of infrared and ultraviolet (IR/UV) light. The detector detects vehicle emissions gases via the reflected IR/UV light beam. The SDM also houses a gas dispenser which allows the system to perform Calibration Verification Audits.
Corner Cube Mirror (CCM)		The CCM is a simple reflector of the IR/UV laser beams. The CCM returns the IR/UV beam back to the detector side of the SDM
Speed / Acceleration Module (SAM)		Speed and acceleration of passing vehicles are gathered by the SAM and sent to the system control unit (SCU). Emitter/Detector Bar Two emitter/detectors are mounted to the Emitter/Detector Bar. Each Emitter/Detector contains a laser and a detector. The laser beam is broken by the tires of the vehicle and the detectors send the information for processing to the SCU.
Camera		The color camera captures a digital image of the vehicle. This image is intended to be used as visual vehicle identification. The image is captured as the emissions concentrations of the vehicle are calculated when the vehicle passes through the IR/UV beam of the SDM.