A hyperspectral-based ship exhaust measurement system and method

Abstract

The invention discloses a hyperspectral-based ship exhaust measurement system, which includes a hyperspectral data acquisition module, a data preprocessing module and a spectral analysis module; the hyperspectral data acquisition module includes a line-scanning hyperspectral camera and an ordinary camera; the ordinary camera is used to locate the target ship; the hyperspectral camera is used to collect the spectral data of the target ship exhaust by real-time line scanning; the data preprocessing module is used to preprocess the collected hyperspectral image data; The processed hyperspectral image data is analyzed and processed, and there is a multi-dimensional time-series ship exhaust spectral analysis model based on support vector machines. The multi-dimensional time-series ship exhaust spectral analysis model inputs the hyperspectral image data of the target ship exhaust, and outputs the composition data of the exhaust gas . The invention also discloses a method for measuring ship tail gas based on hyperspectrum. The invention establishes a spectrum analysis model based on a support vector machine, thereby improving recognition speed and accuracy.

Description

technical field [0001] The invention relates to the technical field of ship exhaust measurement, in particular to a hyperspectral-based ship exhaust measurement system and method. Background technique [0002] Exhaust gas from ships mainly contains nitrogen oxides (NOx), sulfur oxides (SOx), carbon oxides (COx), hydrocarbons (HC) and particulate matter. Exhaust gas from ships makes atmospheric environmental problems such as greenhouse effect, ozone layer depletion and acid rain more serious. While polluting the air, it seriously affects all aspects of human daily life and poses a great threat to people's health. As the problem of ship engine emission pollution becomes more and more prominent, effective regulation of ship exhaust emissions has an urgent need and is of great significance. [0003] At present, the methods that can be used to detect ship exhaust emissions in domestic and foreign research and practical applications mainly include laboratory comparative analysis ...

AI Technical Summary

Problems solved by technology

[0004] Existing exhaust telemetry technology is mainly based on active light sources, which are greatly affected by the environment, and the installation of the device will be subject to certain restrictions; and the detection range of the existing method is small, it is difficult to apply to large-scale screening and supervision

Images