Image processing-based method for determining detergency and dispersibility of engine lubricating oil

A clean, dispersive, image processing technology, applied in image data processing, image analysis, measurement devices, etc., can solve the problems of low measurement accuracy, time-consuming measurement process, and misalignment of the two rings.

Inactive Publication Date: 2013-12-25
CHANGAN UNIV
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional manual ruler method has the following problems: first, the measurement process is time-consuming and laborious, and multiple measurements are often required to improve the accuracy; second, the measurement accuracy is not high
Since neither the diffusion ring nor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Image processing-based method for determining detergency and dispersibility of engine lubricating oil
  • Image processing-based method for determining detergency and dispersibility of engine lubricating oil
  • Image processing-based method for determining detergency and dispersibility of engine lubricating oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] The following are the preferred embodiments given by the inventors. It should be noted that the following embodiments are only a preferred way of implementing the technical solutions of the present invention, and the protection scope of the present invention is not limited to the embodiments.

[0084] With reference to Fig. 1, the assay method of engine oil clean dispersibility of the present invention, specifically comprises the following steps:

[0085] Step S1: Use a metal or glass rod to drop the oil sample just taken out of the engine onto the filter paper. What the filter paper adopts is double-circle brand medium-speed quantitative filter paper with a diameter of 9 cm.

[0086] Step S2: After standing still for 3 hours, place the filter paper 10cm above the ordinary LED lamp, try to make the center of the LED light source, the center of the filter paper and the center of the camera lens in a straight line, and use the camera to collect RGB color images of the oil...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an image processing-based method for determining detergency and dispersibility of engine lubricating oil. The image processing-based method specifically comprises the following steps: dropping one engine lubricating oil drop on filter paper to obtain an oil spot; acquiring an RGB (Red Green Blue) colorful image f by using a camera and inputting the RGB colorful image to a computer; denoising the image of the oil spot to obtain a denoised RGB colorful image; converting the denoised RGB colorful image to an HSI (Hue Saturation Intensity) color model; segmenting an S component image of the HSI color model to obtain a saturation segmentation chart MS; extracting a saturation difference chart CS; calculating a pixel number NS of the saturation difference chart CS; segmenting an I component image of the HIS color model to obtain an intensity segmentation chart MI of the oil spot; extracting an intensity difference chart CI; calculating a pixel number NI of the intensity difference chart CI; and calculating a detergency and dispersibility coefficient K, described in the specification, of the oil product. According to the image processing-based method, a diffusion zone and an oil ring zone are automatically detected since a settling zone, the diffusion zone and the oil ring zone have different transmissivity to the brightness, and thus the detergency and dispersibility are determined. The image processing-based method is simple in calculation and high in precision and is suitable for being adopted in a real-time system.

Description

technical field [0001] The invention relates to a method for measuring the detergency and dispersibility of lubricating oil, in particular to a method for determining the detergency and dispersibility of engine lubricating oil based on image processing. Background technique [0002] The engine is the heart of the car. There are many metal surfaces that rub against each other in the engine during the running of the car. These parts move fast and the working environment is poor. Engine lubricating oil, known as the "blood" of the car, has the functions of lubricating, cleaning, cooling, sealing, and reducing wear on the engine, which can reduce the wear of engine parts and prolong its service life. With the continuation of the working time of the engine, the oxidation of lubricating oil at high temperature, the wear products of mechanical parts, the mixing of fuel and water during use, these reasons will pollute the lubricating oil, resulting in a decline in oil quality, or ev...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N21/84G06T7/00
Inventor 张雷肖梅刘龙马登辉韩光
Owner CHANGAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap