Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Inorganic nitrogen detection method based on image analysis

A detection method and image analysis technology, applied in the detection field, can solve the problems of expensive specific sensing equipment, large color difference error, inconvenient water body detection, etc., and achieve the effect of low detection cost, good accuracy and easy promotion

Active Publication Date: 2019-10-25
碧沃丰生物科技(广东)股份有限公司 +2
View PDF10 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first method judges the color difference with the naked eye, and the error is relatively large, and it will be affected by the surrounding ambient light
The second method requires special portable instruments, which is inconvenient for outdoor testing of water bodies, and the water samples need to be pretreated by flocculation before testing, which is cumbersome to operate
The third type is easy to operate, but the specific sensing equipment is expensive and difficult to promote

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
  • Inorganic nitrogen detection method based on image analysis
  • Inorganic nitrogen detection method based on image analysis
  • Inorganic nitrogen detection method based on image analysis

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0124] The first embodiment: the whole process of detecting the concentration of ammonia nitrogen solution

[0125] The solution to be tested and the ammonia nitrogen standard solution in the concave hole of the white porcelain plate are subjected to color development treatment to obtain the reaction solution to be tested and the standard reaction solution.

[0126] Specifically, 12 groups of samples were prepared, which were 12 bottles of fermentation broth cultured by different strains for 24 hours, and the concentration of ammonia nitrogen in the fermentation broth was quickly determined by a white porcelain plate. Take a 12-hole white porcelain plate, add 150 μL ammonia nitrogen standard solution with an ammonia nitrogen content of 0-98.3 mg / L and 150 μL sample to be tested in sequence. Then add 20 μL metal ion masking agent and 30 μL ammonia nitrogen chromogen to each well, mix well and let stand for 5 minutes.

[0127] Use the gray calibration color card to adjust the w...

no. 2 example

[0155] Second embodiment: the whole process of detecting the concentration of nitrate nitrogen solution

[0156] The solution to be tested and the standard solution of nitrate nitrogen in the concave hole of the white porcelain plate are subjected to color development treatment to obtain the reaction solution to be tested and the standard reaction solution.

[0157] Specifically, prepare the following samples: sample 1 is sodium nitrite solution (nitrite nitrogen content is 25mg / L), sample 2 is nitrate-containing sewage, and sample 3 is sodium nitrite (nitrite Salt nitrogen content is 25mg / L). Take a 12-hole white porcelain plate, add 50 μL nitrate nitrogen standard solution with a nitrate nitrogen content of 0-29.94 mg / L and 50 μL nitrate nitrogen test sample in sequence. Then add 50 μL of nitrite masking agent to each well, let it stand for 1 minute, then add 200 μL of nitrate nitrogen chromogenic reagent, mix well and let stand for 5 minutes.

[0158] Use the gray calibra...

no. 3 example

[0175] The third embodiment: the whole process of detecting the concentration of nitrite nitrogen solution

[0176] The solution to be tested and the standard solution of nitrite nitrogen in the concave hole of the white porcelain plate are subjected to color development treatment to obtain the reaction solution to be tested and the standard reaction solution.

[0177] Specifically, the following samples were prepared: Samples 1-6 were 6 water samples enriched in nitrifying bacteria, and the enrichment of nitrifying bacteria was reflected by detecting the amount of nitrite generated. Take a 12-hole white porcelain plate, add 150 μL of nitrite nitrogen standard solution with a nitrite nitrogen content of 0-12.05 mg / L and 150 μL of the sample to be tested in sequence. Then add 100 μL of nitrite nitrogen chromogen to each well, mix well and let stand for 5 minutes.

[0178] Use the gray calibration color card to adjust the white balance of the acquisition parameters of the mobil...

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 inorganic nitrogen detection method based on image analysis. The method comprises the following steps of: S101, performing color development treatment on a solution to be tested and a standard solution to generate a reaction solution to be tested and a standard reaction solution; S102, obtaining a reaction liquid image to be detected, a standard reaction liquid image, acorrection color card image and a blank area image; S103, reading and generating RGB average optical density data of the liquid to be detected, RGB average optical density data of the standard liquid,RGB average optical density data of the color chart and RGB average optical density data of the blank area; S104, respectively carrying out correction operation on the RGB average optical density data of the liquid to be detected and the RGB average optical density data of the standard liquid; and S105, selecting a sampling channel, establishing a concentration function according to the samplingchannel, the standard solution concentration and the corrected RGB average optical density data of standard solution, and substituting the corrected RGB average optical density data of the solution tobe detected into the concentration function to calculate the concentration of the solution to be detected. By adopting the invention, the detection accuracy is higher, the detection equipment is convenient to carry, the operation flow is simple, and the detection cost is low.

Description

technical field [0001] The invention relates to a detection technology, in particular to a method for detecting inorganic nitrogen based on image analysis. Background technique [0002] Inorganic nitrogen such as ammonium nitrogen, nitrate nitrogen and nitrite nitrogen are important judgment indicators in water quality testing, aquaculture and food processing. On-site rapid detection of inorganic nitrogen has a great demand in production activities. The existing rapid detection methods for inorganic nitrogen mainly include the following three types: kits or test papers based on the characteristic color reaction of inorganic nitrogen, and the color difference on the color card to roughly judge the content level; use a prepared kit and a portable spectrophotometer Detection; specific sensor detection. [0003] The first method judges the color difference with the naked eye, and the error is relatively large, and it will be affected by the surrounding ambient light. The seco...

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): G01N21/78G06T7/00G06T5/00G06T7/90
CPCG01N21/78G06T7/0002G06T7/90G06T2207/10024G06T5/90
Inventor 雷明科胡亚冬潘永钊陈倩瑜范德朋
Owner 碧沃丰生物科技(广东)股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com