Fuel oiling machine detection method based on color card

Abstract

The invention provides a fuel oiling machine detection method based on a color card. A fuel oil volume method includes the following steps: firstly, fuel oil to be detected is injected to a standard metal measuring vessel; secondly, an image is shot through a camera, and the image contains the liquid level of the fuel oil in a viewing pipe, n color bars nearest to the liquid level, and scale lines connected with each color bar in the n color bars; and thirdly, the image is transmitted to a computer, the computer extracts a color distribution law of the n color bars and compares the color distribution law with a distribution sequence table to obtain a volume measuring value of the fuel oil to be detected. The fuel oiling machine detection method based on the color card uses image type number reading technology to replace human eye number reading, improves the degree of automation, and is high in measuring accuracy. Through the computer data storage, the fuel oiling machine detection method based on the color card can store image data detected periodically over the years, provides original image data detected periodically for an oiling machine to measure executive law enforcement, and can be used for analyzing the wear condition and the metering performance of a counter of the oiling machine after a plurality of detection periods.

Description

【Technical field】 [0001] The invention relates to a verification method, in particular to a color card-based verification method for a fuel dispenser. 【Background technique】 [0002] The automatic detection device of the fuel dispenser is a compulsory verification measuring instrument for oil trade settlement. The verification of fuel tankers is related to the fairness of people's livelihood measurement and the protection of the legitimate rights and interests of operators and consumers. There are many factors in the verification process of the fuel tanker that directly affect the value accuracy of the tanker. [0003] The traditional detection device of fuel dispenser adopts manual operation, which has large uncertainty caused by subjective factors, and has the disadvantages of large human error and low degree of automation. Moreover, in the new regulations of JJG443-2006 "Verification Regulations for Fuel Dispensers", the fuel dispenser flow rate during the verification ...

AI Technical Summary

Problems solved by technology

However, the traditional fuel tanker detection device cannot accurately measure the flow rate of the tanker, the temperature of the gun muzzle of the tanker and the oil temperature in the standard metal gauge according to the national standard.

The traditional verification of the fuel dispenser flow rate is calculated based on the ratio of the refueling volume reading of the fuel dispenser to the refueling time. Because it is difficult to maintain a uniform refueling process during the refueling process, the flow rate at the initial stage and the end stage of refueling is unstable, and the artificial error of the stopwatch timing is very large. Therefore, the flow value calculated by the traditional method is actually the average value of the entire fueling process flow, which deviates from the actual maximum flow rate of the tanker

The oil temperature in the traditional calibration standard metal gauge is measured by putting a glass mercury thermometer into the gauge, and then manually reading the temperature value, which affects the measurement accuracy and the efficiency of the calibration

Images