CN201876413U - Integrated automatic testing device based on computer vision for testing color and acid value of oil - Google Patents
Integrated automatic testing device based on computer vision for testing color and acid value of oil Download PDFInfo
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- CN201876413U CN201876413U CN2010206029903U CN201020602990U CN201876413U CN 201876413 U CN201876413 U CN 201876413U CN 2010206029903 U CN2010206029903 U CN 2010206029903U CN 201020602990 U CN201020602990 U CN 201020602990U CN 201876413 U CN201876413 U CN 201876413U
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Abstract
The utility model relates to an integrated automatic testing device based on computer vision for testing the color and acid value of oil, which belongs to a testing device and solves the problems of the existing testing device that color testing and acid value testing are not integrated, large errors can be made, the measurement accuracy is low, the testing cycle is long, parameters cannot be adjusted promptly, and continuous and automated testing cannot be realized. In the technical scheme, a USB (universal serial bus) interface of a CCD (charge coupled device) digital camera is connected with a USB interface of a PC (personal computer), the first RS-232 serial communication interface of the PC is connected with the RS-232 serial communication interface of a control device, the three control ends of the control device are respectively connected with the controlled end of an electromagnetic stirrer, the control end of an automatic burette and the controlled end of an oil sample collection device, a light source, a bottle with a sample to be tested and the CCD digital camera are arranged on the same axial line in sequence, the electromagnetic stirrer is arranged on the lower part of the bottle with the sample to be tested, and the light source, the CCD digital camera, the bottle with the sample to be tested and the electromagnetic stirrer are arranged in an illumination box. When being applied in tests of the oil color, the integrated automatic testing device can greatly improve the accuracy and reliability of oil quality tests.
Description
Technical field
The utility model relates to a kind of grease color and acid value pick-up unit, is specifically related to grease color and acid value pick-up unit based on computer technology.
Background technology
Color and luster and acid value are to weigh two important indicators of edible oil and fat quality quality, so need often to detect, regulate and control in the grease process.Domestic most of enterprises are to the check of oil quality at present, all be to adopt the lab setup of sampling, sample presentation, detection, feedback, adjustment to detect, main human eye and the working experience that relies on operating personnel, the mankind carry out the repetitive work of this dullness for a long time, can cause visual fatigue very soon, anxious state of mind, influence the accuracy of testing result, thereby make the product measuring accuracy be difficult to guarantee, the detection error is big, sense cycle is also long, parameter adjustment is untimely, and causes many unnecessary wastes.
Along with development of science and technology has produced fatty acid value detection method-potentiometric titration based on electronic equipment, promptly adopt titration reagent method and potentiometry, determine titration end-point by PH electrode detection current potential, in potentiometric titration, titration end-point can be used maximum-slope method, the first-order derivative method, methods such as second order difference quotient method are determined.But the method exists problems such as electrode incrustation, electrode are aging, needs frequent clean, changes electrode, in addition, also there are shortcomings such as temperature influence is big, measuring accuracy is low in the PH electrode, brings very big difficulty for the measurement of acid value.
Still adopt current in the world grease color detection method-Lovibond tintmeter method for the detection of grease color.This method is that the color and luster with Standard Colors glass sheet and oil sample compares, and the depth of color and luster is represented with the numeral of indicating on the required Standard Colors glass sheet, belonged to a kind of assay method of subjectivity.Need experienced reviewer just can obtain reliability and reappearance preferably.To identical sample, the different operating person can obtain inconsistent measurement result because of visual determination difference, promptly has individual deviation, and color and gloss is a fuzzy qualitative index, and it is subjected to people's subjective factor to influence bigger; Lovibond tintmeter method can only be carried out intermittent operation in addition, can not realize serialization and robotization.
The utility model content
The detection non-integral, the error that exist in the existing checkout equipment are big, measuring accuracy is low, sense cycle is long, parameter adjustment is untimely, can not realize the shortcoming of serialization and robotization in order to solve for the utility model, and have proposed a kind of grease color acid value integral automatic detection device based on computer vision.
Device of the present utility model is made up of image collecting device, PC 7, control device 8 and topworks; Image collecting device is made up of light source 1, CCD digital camera 2 and lighting box 3; Topworks is made up of magnetic stirrer 4, automatic buret 5 and collection oil sample device 6; The USB interface of CCD digital camera 2 connects on the USB interface of PC 7, the one RS-232 serial communication interface of PC 7 connects on the RS-232 serial communication interface of control device 8, three control ends of control device 8 connect the controlled end of magnetic stirrer 4 respectively, the controlled end of the controlled end of automatic buret 5 and collection oil sample device 6, light source 1, sample to be tested bottle A and CCD digital camera 2 are successively set on the same axis, the bottom of sample to be tested bottle A is provided with magnetic stirrer 4, light source 1, CCD digital camera 2, sample to be tested bottle A and magnetic stirrer 4 are positioned in the lighting box 3.
The utility model combines single-chip microcomputer control technology and digital image processing techniques with traditional chemical analysis method, and the hardware device that forms, thereby realize grease color, the automatic detection of two parameters of acid value, the method of former experiments chamber gap test product quality is become on-line continuous detection and regulation and control, eliminated artificial subjective error, and reduce the error brought because of various interference, greatly improve accuracy and the reliability that oil quality detects, optimum process condition in the hope of the grease process, improve product quality, thereby obtained maximum profit.
Description of drawings
Fig. 1 is a device synoptic diagram of the present utility model.
Embodiment
Embodiment one: in conjunction with Fig. 1 present embodiment is described, present embodiment is made up of image collecting device, PC 7, control device 8 and topworks; Image collecting device is made up of light source 1, CCD digital camera 2 and lighting box 3; Topworks is made up of magnetic stirrer 4, automatic buret 5 and collection oil sample device 6; The USB interface of CCD digital camera 2 connects on the USB interface of PC 7, the one RS-232 serial communication interface of PC 7 connects on the RS-232 serial communication interface of control device 8, three control ends of control device 8 connect the controlled end of magnetic stirrer 4 respectively, the controlled end of the controlled end of automatic buret 5 and collection oil sample device 6, light source 1, sample to be tested bottle A and CCD digital camera 2 are successively set on the same axis, the bottom of sample to be tested bottle A is provided with magnetic stirrer 4, light source 1, CCD digital camera 2, sample to be tested bottle A and magnetic stirrer 4 are positioned in the lighting box 3.Control device 8 adopts the AT89C51 single-chip microcomputer.Gather oil sample device 6 and adopt U.S. Welker automatic sampler.Magnetic stirrer 4 plays and stirs oil sample to be measured and make its uniform effect, makes the acid-base neutralization reaction can be fully complete, simultaneously, can also fast reaction speed, accelerate to discharge the heat that produces by the acid-base neutralization reaction.Sample to be tested bottle A, CCD digital camera 2, light source 1 are in the lighting box 3 of a sealing, and the influence that makes measuring process not changed by external environment light improves the accuracy of measuring.CCD digital camera 2 is a true color CCD digital camera, more than 5,000,000 pixels, and USB interface, PC control operation shutter.
The device operation steps of present embodiment is as follows:
Step 1: start: system initialization, loading procedure, system brings into operation then;
Step 2: parameter setting: set the type and the rank of gathering oil sample;
Step 3: judge whether to begin acid value and detect: be to enter step 4; , do not enter step 14;
Step 4: gather acid value and detect oil sample: gather oil sample device 6 by control device 8 controls the oil sample in the final output channel of deacidifying process flow process is drawn among the sample to be tested bottle A by setting the oil sample quality;
Step 5: add reagent: add neutral alcohol-ether mixed solvent earlier and dilute oil sample to be measured, add phenolphthalein indicator again;
Step 6: volumetric soiutions for the first time: in sample to be tested bottle A, carry out the dropping of potassium hydroxide or sodium hydroxide solution according to the standard volume V of the titration first time in the stored parameter module in the PC 7 by control device 8 control automatic burets 5, drip back control device 8 control magnetic stirrers 4 and stir, stirring finishes waits for 1～5 second;
Step 7: image acquisition analysis: gather oil sample image to be measured by image collecting device, import in the PC 7 and carry out the color data extraction by image processing module;
Step 8: judge whether to reach terminal colour: the color data of the standard titration end-point in the stored parameter module in acquisition of image data and the PC 7 compares and makes judgement, not, enters step 9; Be to enter step 10;
Step 9: microtitration solution once more: in sample to be tested bottle A, carry out the dropping once more of potassium hydroxide or sodium hydroxide solution by control device 8 control automatic burets 5 according to the standard volume v of the microtitration once more in the stored parameter module in the PC 7 once more, dripping back control device 8 control magnetic stirrers 4 stirs, stirring finishes and waits for 1～5 second, enters step 7;
Step 10: stop titration: PC 7 notice control device 8 control automatic burets 5 stop titration;
Step 11: calculate acid value of lipids: calculate the potassium hydroxide of consumption or the volume of sodium hydroxide solution, calculate the data that fatty acid is worth;
Step 12: judge whether it is to detect acid value for the second time: not, enter step 13; Be to enter step 14;
Step 13: discharge the acid value oil sample: discharge the acid value oil sample among the sample to be tested bottle A, return step 4;
Step 14: output acid value result: get and detect mean value for twice, finish this detection, return step 3, wait for next sense command as end product and output data that acid value detects;
Step 15: judge whether to begin color and luster and detect: be to enter step 10 six; Not, return step 3, wait for sense command;
Step 10 six: gather color and luster and detect oil sample: gather oil sample device 6 by control device 8 controls the oil sample in the final output channel of decoloration process flow process is drawn among the sample to be tested bottle A by setting the oil sample quality;
Step 10 seven: grease color analysis: the image of gathering the color and luster oil sample by image collecting device is input in the image processing module of PC 7 and handles, and extracts the color data in the images acquired;
Step 10 eight: judge whether it is to detect color and luster for the second time: not, enter step 10 nine; Be to enter step 2 ten;
Step 10 nine: discharge the color and luster oil sample: discharge the color and luster oil sample among the sample to be tested bottle A, return step 10 six;
Embodiment two: present embodiment and embodiment one difference are to be respectively arranged with in the PC 7 stored parameter module, image processing module and acid value of lipids computing module.Other composition is identical with embodiment one with step.Wherein the stored parameter modules in the PC 7 are to store the acid value that sets according to type and rank the oil sample quality of gathering, standard volume V, the standard volume v of microtitration once more of titration for the first time and color data of standard titration end-point when detecting, and during the color and luster detection the stored parameter module of the oil sample quality of gathering and standard color and luster data.The color data of image processing module transmission standard titration end-point and standard color and luster data are in the stored parameter module.The color data that image processing module extracts is the color mode rgb value, it is a kind of color standard of industry member, be to obtain color miscellaneous by variation and their stacks each other to red R, green G, four Color Channels of blue B, RGB promptly is a color of representing three passages of red, green, blue, this standard almost comprised human eyesight can perception all colours.The formula that acid value of lipids in the acid value of lipids computing module calculates is:
Wherein: V (the ml)-potassium hydroxide of consumption or the volume of sodium hydroxide solution accurately provide volume by automatic buret 5; The potassium hydroxide or the concentration of sodium hydroxide solution of c (mol/L)-consumption; M (g)-sample to be tested quality accurately gathers by gathering oil sample device 6; 56.1 (g/mol)-molal weight of potassium hydroxide or NaOH.
The utility model content is not limited only to the content of the respective embodiments described above, and the combination of one of them or several embodiments equally also can realize the purpose of utility model.
Claims (5)
1. based on the grease color acid value integral automatic detection device of computer vision, it is made up of image collecting device, PC (7), control device (8) and topworks; Image collecting device is made up of light source (1), CCD digital camera (2) and lighting box (3); Topworks is made up of magnetic stirrer (4), automatic buret (5) and collection oil sample device (6); The USB interface that it is characterized in that CCD digital camera (2) connects on the USB interface of PC (7), the one RS-232 serial communication interface of PC (7) connects on the RS-232 serial communication interface of control device (8), three control ends of control device (8) connect the controlled end of magnetic stirrer (4) respectively, the controlled end of the controlled end of automatic buret (5) and collection oil sample device (6), light source (1), sample to be tested bottle (A) and CCD digital camera (2) are successively set on the same axis, the bottom of sample to be tested bottle (A) is provided with magnetic stirrer (4), light source (1), CCD digital camera (2), sample to be tested bottle (A) and magnetic stirrer (4) are positioned in the lighting box (3).
2. the grease color acid value integral automatic detection device based on computer vision according to claim 1 is characterized in that control device (8) adopts the AT89C51 single-chip microcomputer.
3. the grease color acid value integral automatic detection device based on computer vision according to claim 2 is characterized in that gathering oil sample device (6) and adopts U.S. Welker automatic sampler.
4. the grease color acid value integral automatic detection device based on computer vision according to claim 3 is characterized in that CCD digital camera (2) is a true color CCD digital camera.
5. the grease color acid value integral automatic detection device based on computer vision according to claim 3 is characterized in that being respectively arranged with in the PC (7) stored parameter module, image processing module and acid value of lipids computing module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206029903U CN201876413U (en) | 2010-11-11 | 2010-11-11 | Integrated automatic testing device based on computer vision for testing color and acid value of oil |
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| CN2010206029903U CN201876413U (en) | 2010-11-11 | 2010-11-11 | Integrated automatic testing device based on computer vision for testing color and acid value of oil |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103992877A (en) * | 2014-05-12 | 2014-08-20 | 山东西王食品有限公司 | A grease color on-line monitoring system |
| CN104034687A (en) * | 2014-05-26 | 2014-09-10 | 山东西王食品有限公司 | On-line corn oleic acid value monitoring and control system |
| CN104374888A (en) * | 2014-10-31 | 2015-02-25 | 南海油脂工业(赤湾)有限公司 | Device and method for predicting acid value stability of edible oil |
| CN105424867A (en) * | 2015-11-15 | 2016-03-23 | 常州大学 | Direct-connecting double-translation sodium hydroxide calibration device in sulfur determinator |
| CN108020546A (en) * | 2017-12-28 | 2018-05-11 | 吉林省电力科学研究院有限公司 | A kind of Chemical Cleaning and Passivation film quality check meter, test liquid and application method |
| CN108196015A (en) * | 2018-02-06 | 2018-06-22 | 吉林农业大学 | A kind of food with filling automated detection method |
| CN112051357A (en) * | 2020-09-23 | 2020-12-08 | 电子科技大学 | Full-automatic fatty acid value determination system and method for grains |
| CN117214169A (en) * | 2023-10-12 | 2023-12-12 | 宁夏回族自治区食品检测研究院 | Automatic detection device integrating color, luster and acid value of grease and application method |
-
2010
- 2010-11-11 CN CN2010206029903U patent/CN201876413U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103992877B (en) * | 2014-05-12 | 2016-05-11 | 山东西王食品有限公司 | A kind of grease color on-line monitoring system |
| CN103992877A (en) * | 2014-05-12 | 2014-08-20 | 山东西王食品有限公司 | A grease color on-line monitoring system |
| CN104034687A (en) * | 2014-05-26 | 2014-09-10 | 山东西王食品有限公司 | On-line corn oleic acid value monitoring and control system |
| CN104034687B (en) * | 2014-05-26 | 2016-09-28 | 山东西王食品有限公司 | A kind of Semen Maydis oil acid value Online Monitoring Control System |
| CN104374888B (en) * | 2014-10-31 | 2015-11-18 | 南海油脂工业(赤湾)有限公司 | A kind of device and method predicting edible oil acid value stability |
| CN104374888A (en) * | 2014-10-31 | 2015-02-25 | 南海油脂工业(赤湾)有限公司 | Device and method for predicting acid value stability of edible oil |
| CN105424867A (en) * | 2015-11-15 | 2016-03-23 | 常州大学 | Direct-connecting double-translation sodium hydroxide calibration device in sulfur determinator |
| CN108020546A (en) * | 2017-12-28 | 2018-05-11 | 吉林省电力科学研究院有限公司 | A kind of Chemical Cleaning and Passivation film quality check meter, test liquid and application method |
| CN108020546B (en) * | 2017-12-28 | 2020-11-06 | 吉林省电力科学研究院有限公司 | Quality tester for chemical cleaning passivation film, testing solution and using method |
| CN108196015A (en) * | 2018-02-06 | 2018-06-22 | 吉林农业大学 | A kind of food with filling automated detection method |
| CN112051357A (en) * | 2020-09-23 | 2020-12-08 | 电子科技大学 | Full-automatic fatty acid value determination system and method for grains |
| CN112051357B (en) * | 2020-09-23 | 2021-09-28 | 电子科技大学 | Full-automatic fatty acid value determination system and method for grains |
| CN117214169A (en) * | 2023-10-12 | 2023-12-12 | 宁夏回族自治区食品检测研究院 | Automatic detection device integrating color, luster and acid value of grease and application method |
| CN117214169B (en) * | 2023-10-12 | 2024-05-10 | 宁夏回族自治区食品检测研究院 | Automatic detection device integrating color, luster and acid value of grease and application method |
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Granted publication date: 20110622 Termination date: 20111111 |