Automatic automobile exhaust monitoring system based on image and FPGA (Field Programmable Gate Array)

Abstract

The invention relates to an automatic automobile exhaust monitoring system based on an image and an FPGA (Field Programmable Gate Array), and belongs to a signal processing technology and an industrial measurement and control technology. The automatic automobile exhaust monitoring system can realize the qualitative monitoring on automobile exhaust emission by taking an FPGA chip as a processing core of digital images and detecting a sequential-image concerned region. An image of a running automobile can be obtained through a CCD (Charged Coupled Device), analog data are converted into digital data by an A/D conversion chip, the region interested in the image is stored into a buffer through FPGA control, and the FPGA can realize an exhaust location and exhaust contour extraction algorithm by means of hardware logics and the division for a 'black smoke' region of automobile exhaust, determine the pollution level of the automobile according to the pixel area and give an alarm at the same time. The automatic automobile exhaust monitoring system has the advantages of good system real-time performance and strong extensible elements due to the hardware realization of an image processing algorithm, without core processing units such as an industrial personal computer or DSP (Digital Signal Processor) and the like.

Description

technical field [0001] The invention relates to an automatic monitoring system for automobile exhaust based on image and FPGA, which belongs to signal processing technology and industrial measurement and control technology. It uses FPGA chip as the processing core of digital images, and realizes the detection of passing vehicles by detecting the region of interest in sequence images. Excess emissions monitoring. Background technique [0002] With the rapid development of my country's social economy and the improvement of people's living standards, the number of automobiles in my country is also increasing rapidly, and the problem of automobile exhaust pollution is also becoming more and more serious. Vehicle pollutant emission has become the main source of air pollution in many cities. Therefore, controlling the emission of pollutants in vehicle exhaust is of great significance to protect the ecological environment on which human beings depend and the health and safety of th...

AI Technical Summary

Problems solved by technology

However, these methods require professionals to use special equipment for detection, the detection time is relatively long, and it is far from reaching the level of automatic real-time processing

[0004] In addition, the existing exhaust gas detection equipment is aimed at the detection of pollutant content, and requires the analysis of pollutant composition and content, and requires the use of special equipment, which makes it expensive, complicated and difficult to operate

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