TECHNOLOGY
Remote Sensing Device
Versatile, easy-to-use, accurate and certified technology to non-intrusively analyze the real emissions of each vehicle.
The most advanced, widely used and verified sensor in the world to remotely measure vehicle exhaust emissions.
The basics of vehicle emission remote sensing
The RSD determines the exact concentrations of various pollutants present in the exhaust plume of each vehicle. The device also applies computer vision to analyze each vehicle characteristic and kinetics, measuring the vehicle’s speed and acceleration at the time of the emissions’ measurement.
Key features
The RSD measures the spectroscopic absorbance in IR and UV light of:
CO - Carbon monoxide
CO2 - Carbon dioxide
NO - Nitrogen monoxide
NO2 - Nitrogen dioxide
HC - Hydrocarbons
NH3 – Ammonia
PM - Particulate matter
The RSD analyze the emissions from tailpipe exhausts, as well as evaporative emissions caused by leaks. Each vehicle record consists of 100 measurements of the plume of gases in 0,5 seconds. Emissions are expressed in pollutant ratios to CO2, fuel-specific emissions or even travelled distance emissions (g/km) with appropriate assumptions.
The RSD includes a system for automatic and autonomous self-calibration. Internal sealed cells with known concentrations of multiple gases allows the regular verification of the system's accuracy (+/-10%).
This applies both for portable and fixed systems, enabling 24/7 monitoring with fully unattended operation, while maintaining a method of instrument verification for metrological and legal purposes.
Once deployed on the road, the RSD can monitor vehicle emissions from circulating traffic without any human intervention.
Opus Sensing Drive© is our proprietary Artificial Intelligence technology to provide in real-time every detail of individual vehicles in real-world conditions using the camera of the RSD:
Vehicle type
License plate text
Vehicle speed, acceleration and VSP
Brand and model
Body color
License plate color
The RSD can simultaneously measure emissions from vehicles traveling in two lanes without the need to place anything on the asphalt or above the lanes. The system identifies events where vehicles pass in parallel to mark these events as invalid.
SET UP
The portable deployment of the RSD offers maximum flexibility and easy operation. The system can be deployed in 10 minutes, left temporarily unattended and frequently moved to fresh sites.
As the RSD is fully battery powered, connected to the internet and do not require any modification to the road, this setup allows versatile operation.
The RSD can be installed on a fixed site for 24/7 monitoring. The RSD modules are housed inside two main IP65 cabinets, deployed at both sides of the road, and anchored to the ground. The main cabinet is connected to an external power source, for continuous power supply .
The RSD can include a rain sensor which activates the closing of the cabinet if rain is detected. Door is opened again automatically after rain stops. The cabinets include a full temperature conditioning system.
