Method and system for temperature detection using temperature-sensitive color-changing ear tags of pigs

Abstract

The invention relates to a temperature detection method using pig temperature-sensitive color-changing ear tags, including pig temperature-sensitive color-changing ear tags and a monitoring camera; step 1: extracting ear tag images according to a training model of ear tag images, and generating multiple sheets containing a single ear tag The target rectangular picture; Step 2: Use image processing technology to obtain the rough outline point set of the earmark in the current picture, and then set two threshold conditions to fit the obtained rough outline into a maximum ellipse; Step 3: Divide the rectangular picture into three Each area is sampled in three areas to obtain the relative RGB value of the color-changing area; the relative RGB value of the color-changing area and the corresponding actual temperature are learned by locally weighted linear regression to obtain the corresponding relationship between the relative RGB value of the color-changing area and the temperature , output the temperature value corresponding to the discoloration area of ​​the current picture. The invention also discloses a temperature detection system for the temperature-sensing and color-changing ear tag of pigs.

Description

technical field [0001] The invention belongs to the field of livestock medical instruments, and in particular relates to a temperature detection method and system using a pig's thermochromic ear tag. Background technique [0002] African swine fever is characterized by a short course of onset, the most acute and acute infection mortality rate is as high as 100%, the incubation period of African swine fever natural infection is 5 to 9 days, and the body temperature rises to 41 ℃ at the onset of the disease, which lasts for about four days until the forty-eight days before death. Within hours, the body temperature begins to drop, and the clinical symptoms are gradually revealed until the body temperature drops, showing decreased appetite, extreme fragility, rapid pulse, cough, about one third of the rapid breathing, obvious difficulty in breathing, often death on the seventh day after fever, or Symptoms appear only one or two days before death. [0003] For the African swine ...

AI Technical Summary

Problems solved by technology

However, there are inaccurate temperature monitoring in actual use, so it is necessary to provide a temperature detection method based on livestock temperature-sensitive color-changing ear tags

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