TECHNICAL FIELD OF INVENTION
The present invention relates to system and method for monitoring pollution generated by automobiles (motor vehicles).
BACKGROUND AND PROBLEM WITH EXISTING ART
Emissions from automobiles remain a major source of air pollution in major cities worldwide. The present invention relates to a system and method for systematically and continuously monitoring the vehicle effluents like Carbon dioxide (CO2), Sulphur dioxide (SO2), Nitrogen oxides (NOx) and Carbon monoxide (CO) that harm the environment. In particular, the system of the present invention relates to an environment monitoring system, which has application for monitoring the quality of vehicle exhaust. More particularly, the system measures certain air quality parameters of vehicle exhaust and provide an analysis of the data collected and further the system informs the law enforcing authorities about the vehicles that emit harmful effluents above permitted levels as per law.

Increase in number of automobiles contributes to the increase in air pollution which can play havoc on human health. More Automobiles are responsible for more than 50% of Carbon monoxide (CO) in atmospheric air. This condition could impact ground-level ozone and can worsen respiratory diseases and trigger asthma. There is adequate evidence that air pollution has adverse effect on human health and agriculture in India.
Various studies show that poorly maintained vehicles and older vehicles (older than 10 years) account for major contribution of automobiles to air pollution. Currently, the regulation requires pollution under control (PUS) checks done periodically at fuel filling stations and garages - known as PUC check centres. The frequency of periodic PUC checks varies from one to four times per year. Some of the testing parameters like hartridge smoke unit (HSU) are outdated. Further, pollutants such as N02 are yet to be measured during PUC testing. Recent regulation requires on-board diagnostic (OBD) installation on vehicles. However, it is yet to be part of the formal PUC system. OBD only glows the malfunction indication light (MIL) in the dashboard. Thus, it is unlikely that OBD serves any useful purpose for emission control at the moment. Society of Indian Automobile Manufactures (SIAM) has developed computerization model for emission check. In SIAM developed system, the gas analyser is connected to a computer, which has a printer and a web camera. The emission values from the gas analyser are sent directly to the computer and the photograph of the registration number plate of the vehicle is also captured. The emission data generated is stored in the computer, which is sent periodically to the transport department. Such system requires manual intervention and the interval between checks are large.
Another approach is to install reference air quality monitoring system based on gas analyser technology on the road, motorways and highway. However, such an approach limits the number of monitoring locations due to their cost and size. Such systems also log air quality data every 30 or 60 minutes and the measured data do not sufficient temporal resolution for analysis.
SUMMARY OF THE INVENTION
The technical problem to -be solved by the present invention is thus to provide a system for monitoring pollution generated by automobiles. The system consists of a data acquisition and processing sub-system for acquiring and processing data and a communication sub-system for communication the collected data to a central site (server or Cloud). The sub-system for data acquisition and processing comprises of processor, memory; a sensor for monitoring each gas level in the effluents such as Nitrogen oxides (NOx), Volatile Organic Compounds (VOCs), Carbon monoxide (CO), Carbon dioxide (CO2), particulates, and Sulphur dioxide (SO2). The communication sub-system (GSM network) sends the collected data to a central site for j further processing. The processor is programmed to monitor each gas sensor, capture data from each sensor periodically, to store the captured data from each sensor in the memory; and helps the communication sub¬system to transfer the data to the central site (server or Cloud) for further processing.
Further, the data acquisition and processing sub-system are suitable for establishing an alarm message when at least one of said parameters representative of pollution exceeds a determined threshold. This threshold exceeded data is transmitted in real time to the authorities and/or vehicle owner and or user via the central site for information purposes and for possible decision-taking.

BRIEF DESCRIPTION OF THE DRAWING
For a complete understanding of this invention, references are made to the following description taken in connection with the accompanying drawing, in which:
FIG. I is a schematic diagram of the operation and components of the automatic vehicles pollution monitoring and analysis system. It has : Processor:
• Arduino/ Raspberry Pi Communication Module:
• GSM Module Example Sensors:
• MQ8 (Hydrogen Gas Sensor)
• MQ4 (Methane Gas Sensor)
• MQ135 (Ammonia)
• MQ7 (Carbon Monoxide)
• LM35 Temperature Sensor
FIG. 2 is a schematic diagram of various sensors employed; processing and storage sub-system; and communication sub-system.
FIG. 3 is a flow chart illustrating operation of the components of automatic vehicle pollution monitoring and analysis system.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
Emissions from automobiles remain a major source of air pollution in major cities worldwide. The present invention relates to a system and method for systematically and continuously monitoring the vehicle effluents like Carbon dioxide (CO2), Sulphur dioxide (SO2), Nitrogen oxides (NOx) and Carbon monoxide (CO) that harm the environment. In particular, the system of the present invention relates to an environment monitoring system, which has application for monitoring the quality of vehicle exhaust. More particularly, the system measures certain air quality parameters of vehicle exhaust and provide an analysis of the data collected and further the system informs the law enforcing authorities about the vehicles that emit harmful effluents above permitted levels as per law.

The system architecture has been given in Fig 1. Suitable sensors are fitted in the vehicle along with necessary communication module. The flowchart in Fig 2 shows the flow of data from the sensor to the cloud. In the cloud, we perform data analysis and appropriate action is taken. The vehicle smoke pollution monitoring system with GSM module focus on two aspects, namely, the time taken to push the aggregated data into the cloud database and make an analysis between the developed board and the established portable gas sensor by applying data analysis. The smallest time difference recorded inside the database means the developed system has the low latency between the communication module and the server will favourably for the user to view the in-vehicle air quality in real-time.