Two-waveband-based online detection method and two-waveband-based online detection device for eggs with blood pots

Abstract

The invention discloses a two-waveband-based online detection method and a two-waveband-based online detection device for eggs with blood pots, wherein a light source part is installed just below a conveying mechanism by a lower support arm; a detection unit is coaxially installed just above the conveying mechanism by an upper support arm; the conveying mechanism for the eggs is installed between the light source part and the detection unit; the detection unit is used for generating voltage signals; the voltage signals generated in two channels are converted to digital signals in a data processing unit by an amplifier and an A / D (analogue / digital converter); a binary Logistic discrimination model is combined, and the formula is Y = 121.9*A - 149.361*B - 16.028, wherein A is the average optical absorbance value in a waveband range of 580 + / - 10 nm, B is the average optical absorbance value in a waveband range of 600 + / - 10 nm; when Y is not less than 0, the judged result is that the eggs are normal, and when Y is less than 0, the judged result is that the eggs are provided with blood pots. According to the method and the device disclosed by the invention, the loss of optical intensity is reduced and the sensitivity of detection is improved on the premise of acquiring the spectral information of two wavebands simultaneously.

Description

technical field [0001] The invention relates to an online detection method and device, in particular to a dual-band-based online detection method and device for blood-spotted eggs using visible / near-infrared spectrum technology. Background technique [0002] Eggs are rich in nutrition and low in price, and have become one of the indispensable sources of nutrition for human beings. my country is a big egg producing country, and its output ranks first in the world. However, defective eggs, such as blood spots in the eggs, will seriously affect the quality of the eggs. Blood spot is a common defect inside eggs, mostly red spots or streaks, common in egg yolk or egg white, usually due to factors such as vitamin deficiency, disease or genetics. About 2%-10% of eggs will have blood spots. The presence of blood spots will affect consumers' perception and purchase desire, and is very important to the sales price and export of poultry eggs. On December 20, 2011, the industry stand...

AI Technical Summary

Problems solved by technology

Although this device can obtain spectral information at two different wavelengths at the same time, when a semi-transparent lens is used to reflect a part of the light and transmit the other part of the light, there will be a loss of light intensity, which will weaken the signal and affect the detection sensitivity.

Images