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On-board air quality monitoring

Home » On-board air quality monitoring

Gases such as NO2, CO and CO2 can be monitored in cities thanks to the on-board monitoring of air quality parameters. This continuous monitoring is conducted through several Nanoenvi URVAMM devices that are set up on board a fleet of public vehicles and monitor the air quality from moving vehicles such as urban buses, garbage trucks, taxis, police cars, fire trucks, etc., which transmit the information to the ENVIRA DS platform.

This mobile monitoring complements the traditional air quality networks and offers more information to be analyzed, so that policies for traffic control or for the improvement of the air quality can be established in Smart Cities.

The mobile monitoring systems include:

  1. A network of Nanoenvi URVAMM stations capturing relevant variables about air quality (NO2, CO and CO2).
  2. A smart computer system, ENVIRA DS, for the exploitation of pollution data captured to generate warnings and notifications.

The monitoring of pollutants on the road gives indicative data about the general situation along the routes of the vehicles.

Our solution Nanoenvi URVAMM obtains data from large monitored areas, thus providing a continuous sampling to draw a map of air pollution in real time.

Continuous monitoring

ENVIRA has designed an on-board air quality monitoring system to notify instantly about the presence of pollutant agents along the route of a fleet of vehicles.

The Nanoenvi® UrVAMM device is set up in the infrastructure of local public vehicles (buses, garbage trucks, police cars, etc.) because they offer a continuous operating service and because of their homogenous and extensive rounds, which increases the range of the environmental information obtained.

This monitoring equipment developed by ENVIRA has sensors for:

  • NO2.
  • CO2.
  • CO.

The microprocessor sends data to a cloud server at planned intervals, with multiple communication options. The information collected is totally accessible and open, thus supporting Open Data initiatives for the exploitation of data by the public administration and the citizens.

Thanks to the data registered, the public administrations can establish strategies and plans to improve air quality in cities.

Communication modules

ENVIRA provides clients with a server for the receiving the data. 3G technology can be used for communication or it can be connected to a wi-fi network in the city. Also, local data receptors can be set up on bus shelters to send the information registered. The flexibility of the firmware displayed at Nanoenvi stations enables the equipment to be directly integrated with any kind of IoT platform or control center, both cloud-based and local ones, through communication protocols (message formats, communication and transport networks, M2M networks) completely adapted to each case. Communication with the optional communication modules at ENVIRA are wireless, with technologies such as 3g, LTE, LORA®, with Narrow-Band available soon.

Data display, analysis and trends

The data collected by the on-board devices in vehicles are transmitted to the ENVIRA DS platform, where information about the main air pollutants is transmitted.

It is worth taking into account, when interpreting the data, that the on-board monitoring equipment uses alternative reference methods and that the data must be used to analyze trends and not as absolute values.

The great advantage of this system is that the air quality is monitored along the route of the vehicle, which let us see which points in the city have the highest concentration of pollutants at different times, and see their evolution when actions are taken to reduce pollution.

Graphic 1 shows the hourly, daily, weekly and monthly measurements of each of the urban bus routes to analyze the trend of the measured parameters.

Graphic 2 shows an analysis of the trends of the parameters monitored.

Advantages

Open solution, integrable with external developments at any level (device, connectivity, CLOUD or user application).

An unlimited number of devices can be included in future extensions.

High-reliable and available data in real time

Tailored system.

Creation of data history for future researches.

Flexibility in integration with local plans for the reduction of emissions.

Analysis of the evolution of the concentration of parameters.

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