Exhaust gas monitoring system and method

An exhaust gas monitoring system comprising:

• an initial determiner configured to determine whether analyzing a state of an engine of a vehicle is possible on the basis of color information of an exhaust gas;
• an image collector configured to perform an operation to collect image data of a rear of the vehicle;
• an image analyzer configured to analyze the image data and output color information corresponding to an exhaust gas region included in the image data;
• and
• an analysis processor configured to analyze the state of the engine of the vehicle to produce an analysis result based on an analysis of the color information from the image analyzer,
• wherein the image collector collects the image data of the rear of the vehicle only when the initial determiner determines analyzing the state of the engine is possible based on the color information of the exhaust gas;
• wherein the analysis processor comprises:
• a first determiner configured to determine whether the color information from the image analyzer corresponds to preset first color information on the basis of the analysis result;
• a second determiner configured to receive information related to a current state of the engine and determine whether the current state corresponds to a regeneration mode when the first determiner determines that the color information from the image analyzer does not correspond to the first color information;
• and
• a first processor configured to process the state of the engine as a normal state when the second determiner determines that the current state corresponds to the regeneration mode.

A method for monitoring an exhaust gas of a vehicle comprising:

• determining in a preheating determination operation whether analyzing a state of an engine of a vehicle is possible on the basis of color information of an exhaust gas;
• collecting image data of a rear of the vehicle in an image input operation when it is determined in the preheating determination operation that it is possible to analyze the state of the engine;
• using supervised learning, analyzing, in an image analysis operation, the image data collected in the image input operation and extracting color information corresponding to an exhaust gas region included in the image data, wherein the supervised learning is trained on data comprising pairs of image data with a correct color determination;
• and
• determining in an analysis processing operation the state of the engine of the vehicle based on the color information extracted in the image analysis operation.