CN217521013U - Apple sugar degree nondestructive measurement device based on smart phone - Google Patents
Apple sugar degree nondestructive measurement device based on smart phone Download PDFInfo
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Abstract
The utility model provides an apple brix nondestructive measurement device based on smart mobile phone, belongs to physical experiment technical field. The scheme is as follows: the method comprises the following steps: buckle, cell-phone camera, red LED lamp, electronic module, switch, power, device main part, light information acquisition cover, device main part both sides set up the buckle that is used for fixed cell-phone respectively, red LED lamp, electronic module, switch, power, light information acquisition cover all set up in the device main part, light information acquisition cover sets up at cell-phone camera corresponding position for the red LED lamp setting that provides auxiliary light source light information acquisition cover one side, the red LED lamp connects gradually electronic module, switch, power. The beneficial effects are that the utility model discloses a buckle can fix the cell-phone well, combines light information collection cover, light source to carry out image acquisition to the apple surface through cell-phone camera, and the aspect is swift, easy operation, has improved the stability and the accuracy that detect.
Description
Technical Field
The utility model belongs to the technical field of the physical experiment, especially, relate to an apple sugar degree nondestructive measurement device based on smart mobile phone.
Background
The apple contains H group, such as C-H, O-H, N-H related organic substance molecule and near infrared light produce optical reaction, such as frequency doubling and frequency combination absorption, thereby changing the incident near infrared light, i.e. different groups have different energy levels, the absorption degree is different, and when the content of the groups is different, the absorption degree is also different. The absorption of infrared light of different wavelengths by the apple can be reflected by the intensity values of reflected light of different wavelengths. Therefore, by measuring and analyzing the near infrared diffuse reflection intensity of the apple, the sugar degree value can be obtained. In the prior art, the nondestructive measurement of the sugar content of the apples usually needs more complex equipment, and is time-consuming and labor-consuming; most apple brix appearance in the market is the destruction type and detects, is about to the apple sample stripping and slicing juicing, uses fruit juice to carry out the brix and detects, complex operation, and receives environment and personal operation influence, and the error is great.
The problem can be well solved by measuring through the mobile phone APP, but in the process of image acquisition, the light source is an important component in the apple nondestructive testing acquisition process, whether the light source is selected is directly related to the stability of an instrument and the detection precision, so how to select a proper light source and how to effectively combine with the mobile phone, effective images are acquired, and the problem to be solved is urgently needed to perform nondestructive measurement on the apple brix.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the above-mentioned prior art, the utility model provides an apple brix nondestructive measurement device based on smart mobile phone, the device can fix the cell-phone well, combines the light source to carry out image acquisition to the apple surface through the cell-phone, and the aspect is swift, easy operation, has improved the stability and the accuracy that detect.
The technical scheme is as follows:
the utility model provides an apple brix nondestructive measurement device based on smart mobile phone, includes: buckle, cell-phone camera, red LED lamp, electronic module, switch, power, device main part, light information acquisition cover, device main part both sides set up the buckle that is used for fixed cell-phone respectively, red LED lamp, electronic module, switch, power, light information acquisition cover all set up in the device main part, light information acquisition cover sets up at cell-phone camera corresponding position for the red LED lamp setting that provides auxiliary light source light information acquisition cover one side, the red LED lamp connects gradually electronic module, switch, power.
The LED lamp comprises a light information acquisition cover, a red LED lamp channel and a red LED lamp, wherein the light information acquisition cover is arranged on the light information acquisition cover, and the red LED lamp is positioned in the red LED lamp channel.
Further, still including the pilot lamp that is used for showing the electric quantity, the pilot lamp with electronic module connects.
Further, the power source is a battery pack.
Further, the optical information collecting cover is a hollow round table with the upper bottom surface and the lower bottom surface being absent.
Further, the device main body, the light information acquisition cover and the red LED lamp channel are integrally formed.
Further, the electronic module includes resistance R1, resistance R2, resistance R3, resistance R1, resistance R2, resistance R3 series connection.
Furthermore, the resistance values of the resistor R1, the resistor R2 and the resistor R3 are all 150 ohms.
The utility model has the advantages that:
apple brix nondestructive measurement device based on smart mobile phone pass through the buckle and can fix the cell-phone well, combine light information collection cover, light source to carry out image acquisition to the apple surface through cell-phone camera, the aspect is swift, easy operation, has improved the stability and the accuracy that detect. The red light is selected as a light source, the light irradiates on the sample, and the reflected light is received by the CMOS of the mobile phone, so that an image of the light intensity is obtained, and the extraction and the processing are easier.
Drawings
Fig. 1 is a schematic structural view of the apple brix nondestructive measuring device based on the smart phone of the present invention;
FIG. 2 is a flowchart of APP software used in conjunction with the present invention;
FIG. 3 is a circuit diagram of the present invention;
the reference numbers in the figures are as follows: the device comprises a 1-buckle, a 2-mobile phone camera, a 3-red LED lamp, a 4-electronic module, a 5-indicator lamp, a 6-power switch, a 7-power supply, an 8-device main body, a 9-optical information acquisition cover and a 10-red LED lamp channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. The apple brix nondestructive measurement device based on the smart phone is further described with reference to the accompanying drawings 1-3.
Example 1
The utility model provides an apple brix nondestructive measurement device based on smart mobile phone, includes: buckle 1, cell-phone camera 2, red LED lamp 3, electronic module 4, switch 6, power 7, device main part 8, light information collection cover 9, device main part 8 both sides set up buckle 1 that is used for fixed cell-phone respectively, red LED lamp 3, electronic module 4, switch 6, power 7, light information collection cover 9 all set up in device main part 8, light information collection cover 9 sets up and corresponds the position at cell-phone camera 2 for the red LED lamp 3 that provides auxiliary light source sets up light information collection cover 9 one side, red LED lamp 3 connects gradually electronic module 4, switch 6, power 7. The wavelength of the RGB module composition of the red LED lamp 3 is about 550 nm.
Preferably, the LED lamp system further comprises a red LED lamp channel 10, wherein the red LED lamp channel 10 is arranged on the light information collection cover 9, and the red LED lamp 3 is positioned in the red LED lamp channel 10.
Preferably, still include the pilot lamp 5 that is used for showing the electric quantity, pilot lamp 5 with electronic module 4 is connected. The power supply 7 is a battery pack, preferably four or five batteries. The optical information collecting cover 9 is a hollow round table lacking the upper bottom surface and the lower bottom surface.
Preferably, the device body 8, the light information collecting cover 9 and the red LED lamp channel 10 are integrally formed.
Preferably, as shown in fig. 3, the electronic module includes a resistor R1, a resistor R2, and a resistor R3, the resistor R1, the resistor R2, and the resistor R3 are connected in series, and the resistance values of the resistor R1, the resistor R2, and the resistor R3 are all 150 ohms.
Pass through buckle 1 with the cell-phone and fix to measuring device's back, cell-phone camera 2 can correspond in light information acquisition cover 9 departments, opens switch 6, and red LED lamp 3 lights, aims at the apple surface with light information acquisition cover 9 to carry out image acquisition, then detect the apple brix. The smart phone and the measuring device can be combined into a whole by fixing the buckle 1, so that the next operation is facilitated; through the arrangement of the red LED lamp 3, the red light irradiates on the sample, and the reflected light is received by the CMOS of the mobile phone, so that an image of light intensity is obtained, and the extraction and the processing are easier; bottom surface and hollow round platform about light information acquisition cover 9 is for lacking, can laminate the apple surface and carry out image acquisition, and the requirement of experiment can more be satisfied to the result of gathering.
Example 2
As a separate embodiment or in addition to embodiment 1.
In order to realize the nondestructive measurement of the sugar content of the apple by adding the minimum components, the light source is combined with the mobile phone, and the power supply is adapted. Through analysis and measurement of the mobile phone and related electronic components, the accessories are designed by using 3D modeling, namely, the shell is processed, and the electronic components are combined with a power supply.
The 3D modeling can quickly establish the linkage of electronic components and mobile phones and is convenient for synthesizing a power supply on the mobile phones. And the method is convenient to modify, has lower cost and is suitable for carrying out experiments. We obtained additional modules through a 3D printer using the ug (unicraphicsnx) Software design structure of Siemens PLM Software corporation. Comparing the mold with the solid body to obtain the final product,
the electronic components are combined with the mobile phone and the power supply, so that the mobile phone can operate independently and is convenient to use to a certain extent. In order to prevent the influence of external light sources on data measurement, the shell is wrapped by the tinfoil paper, and the accurate measurement of the sugar content can be greatly improved under the protection of two layers.
The light source is an important component of the fruit nondestructive detector, and whether the light source is correctly selected directly relates to the stability of the detector and the detection precision, even to the success or failure of development. The light source must ensure enough intensity and stability in the wave band capable of reflecting the characteristic peak of the fruit, and the intensity and the stability are directly related to the signal-to-noise ratio of the detector. In addition, the different illumination angles of the light sources can affect the accuracy of the model. Through analysis and practical experimental study, the red light is selected as the light source in the embodiment, and the irradiation angle of the light source is 45 °. The light is irradiated on the sample, and the reflected light is received by the CMOS of the mobile phone, so that an image of the light intensity is obtained. In the diffuse reflection spectroscopy, the optical signals contain the internal quality information of the fruit, and strong light source radiation intensity is not needed, and the diffuse reflection signals are stronger than the transmission signals and are relatively easy to extract and process.
The absorption spectrum of the apple in the visible light and near infrared regions is analyzed by a spectrometer, and the fact that the absorption in the infrared regions is strong, but the absorption of red light in the visible light wave band is higher than that of short wavelength is found. Considering that the diffuse reflection light intensity is received by the CMOS of the mobile phone and a filter for weakening infrared light is arranged outside the CMOS of the mobile phone, a single-wavelength red LED is selected as a working light source.
And (4) carrying out physical and chemical detection on the sugar degree of the apples for establishing a relation with a diffuse reflection method. The apple is cut into half and half, the apple is sampled in a layered mode, certain pulp near an illumination collection point is taken for sugar degree detection, a fruit sugar degree detector of Japan eltao is used, the fruit sugar degree detector has the advantages of being high in detection speed, high in accuracy, convenient to use and the like, and differences caused by oxidation of the fruit in the air can be reduced. Because the sugar degree longitudinal variation of fruit is great, so select the flesh of apple subcutaneous 4mm about to carry out data acquisition, cut off flesh, carry out abundant stirring with it and make it even to wash the inspection hole of fruit sugar degree detector many times with the clear water in every measuring, avoid influencing the measurement of apple liquid next time.
Finally, a certain relation is established between the ratio obtained by the diffuse reflection method and the sugar degree value detected by the physical and chemical method, and after a plurality of groups of control experiments are carried out, data obtained by diffuse reflection and the sugar degree of the apple can be effectively fitted. And (3) establishing a mathematical model by using MATLAB software, training and correcting the model by using data of a plurality of apple samples, and finally obtaining a sugar degree prediction model.
A software part: the software design direction is to make an app which can use the camera authority, and then a camera program carried in a mobile phone system can be called to realize photographing and selecting functions, so that a safe and reliable photographing function program is obtained, and the development engineering quantity is reduced. The data generated by photographing is stored in a linked list and displayed on a certain interface of the APP, and partial information and test times obtained by photographing are prompted, so that an APP user can conveniently make adjustment more in barrier-free operation and clearly see the whole process of photographing and data processing. In addition, two interfaces are designed to see the data of all the apples which are photographed and recorded, just like a commonly used mobile phone album. The lower layer of the interface can calculate and see the sugar degree value of the apple, the two layers conform to the behavior habit of people, a plurality of data are firstly input, the input information can be seen in the input process every time of photographing, all the data input till now can be seen at any time if needed, the data can be clicked again to check after the photographing is finished, the calculation can be clicked under the interface after the checking is correct, finally, the apple sugar degree value can be calculated and displayed in a new interface, the whole operation process is smooth, the data display is comprehensive, and the functions of testing all the requirements in the apple sugar degree process are achieved.
The application steps are as follows:
1. the power supply is switched on to ensure the stability of the light source.
2. And opening the mobile phone APP to enter an operation interface, clicking to take a picture and selecting a picture area, wherein the taken picture is a whiteboard comparison group.
3. And obtaining the determined picture, selecting to obtain a white board gray value, and taking a picture of the apple according to the same steps.
4. And performing data processing on the obtained two pictures, clicking data, clicking a data calculation button, and finally directly displaying the sugar degree value of the apple area on the mobile phone APP.
The time of the whole process can be obtained by actual measurement and is about 30 seconds, and the rapid detection can be realized. The detection time is greatly shorter than the traditional fruit sugar degree nondestructive detection time, so that the method has positive significance in the aspects of promoting agricultural development and the like. In enough sample data, a database and a data model which are well established under certain conditions can improve the precision value of the product, and can detect various fruits simultaneously, thereby greatly improving the application range of the product. Under certain conditions, the method can be popularized in the production field of other fruits and vegetables.
An apple sugar degree prediction model is established according to the diffuse reflection light intensity ratio and the sugar degree value measured by the sugar degree meter, a stable light source is provided by an external component, the diffuse reflection light intensity ratio of the apple and the whiteboard is shot and obtained by the smart phone, and the apple sugar degree prediction model in the APP calculates and displays the apple sugar degree values of different varieties. The finished product finally achieves the effects of low cost, simple operation, portability, no damage, rapidness and high measurement accuracy.
Points or advantages of innovation
Compared with the existing nondestructive sugar degree detection product on the market, the product has the following advantages:
(1) can realize the nondestructive measurement of the apple
The apple brix appearance is mostly destruction type detection in the existing market, is about to the apple sample stripping and slicing juicing, uses fruit juice to carry out the brix and detects, and complex operation, and receive environment and personal operation influence, the error is great. The product can obtain the sugar degree value with smaller error without damaging the apples.
(2) The production cost of the works is low
The cost of the product mainly comprises a mobile phone, a support, a power supply, a light source and the like, the cost of accessories is about 100RMB, the accessory is about one tenth of the current market product, and the function of the accessory can reach seventy percent of the market product. Compared with the products of the same level, the price is lower, and the market range is wider. And for a high-precision nondestructive apple brix detector, the cost price is greatly higher than that of the product, which is about more than 80 times of that of the product, and the types of selection are few.
(3) Convenient measurement
The product measurement only needs to be carried out the photographing treatment under the simple dark box environment, and the sugar degree value of the fruit can be obtained. For measurement with higher precision, the average value can be obtained by photographing a plurality of parts of the apple. By testing, our time is much less than its operating time, roughly one-seventh of its time, compared to the detection of impaired glycemia.
(4) Is convenient for popularization
The method can realize the nondestructive measurement of the sugar content of the apples by only adding a group of additional modules to the mobile phone, can display the sugar content of the apples in the area by photographing, does not need a computer to process data, and has positive significance in promoting the development of fruit agriculture and the like. Simple and low-cost equipment provides reliable parameters for fruit growers to master apple maturity in real time; in daily life, people can conveniently and quickly select apples suitable for own taste to taste, the requirements of people on different sour and sweet tastes are met, and great convenience is provided for users.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
The above description is only the specific implementation manner of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present invention and the design of the present invention within the technical scope of the present invention.
Claims (5)
1. The utility model provides an apple brix nondestructive measurement device based on smart mobile phone which characterized in that includes: the mobile phone with the LED lamp comprises a buckle (1), a mobile phone camera (2), a red LED lamp (3), an electronic module (4), a power switch (6), a power supply (7), a device body (8) and an optical information acquisition cover (9), wherein the buckle (1) for fixing the mobile phone is arranged on each of two sides of the device body (8), the red LED lamp (3), the electronic module (4), the power switch (6), the power supply (7) and the optical information acquisition cover (9) are all arranged on the device body (8), the optical information acquisition cover (9) is arranged at a position corresponding to the mobile phone camera (2), the red LED lamp (3) for providing an auxiliary light source is arranged on one side of the optical information acquisition cover (9), and the red LED lamp (3) is sequentially connected with the electronic module (4), the power switch (6) and the power supply (7);
the LED lamp is characterized by further comprising a red LED lamp channel (10), wherein the red LED lamp channel (10) is arranged on the optical information acquisition cover (9), and the red LED lamp (3) is positioned in the red LED lamp channel (10); the optical information acquisition cover (9) is a hollow round table lacking the upper bottom surface and the lower bottom surface; the device main body (8), the light information acquisition cover (9) and the red LED lamp channel (10) are integrally formed.
2. The non-destructive measuring device of apple brix based on a smart phone according to claim 1, further comprising an indicator light (5) for displaying electric quantity, wherein said indicator light (5) is connected with said electronic module (4).
3. The smartphone-based apple brix nondestructive measurement device of claim 1 wherein the power source (7) is a battery pack.
4. The smartphone-based apple brix nondestructive measurement device of claim 1, wherein the electronic module (4) comprises a resistor R1, a resistor R2 and a resistor R3, and the resistor R1, the resistor R2 and the resistor R3 are connected in series.
5. The smartphone-based apple brix nondestructive measurement device of claim 4, wherein the resistances of the resistor R1, the resistor R2, and the resistor R3 are all 150 ohms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123230416.7U CN217521013U (en) | 2021-12-21 | 2021-12-21 | Apple sugar degree nondestructive measurement device based on smart phone |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202123230416.7U CN217521013U (en) | 2021-12-21 | 2021-12-21 | Apple sugar degree nondestructive measurement device based on smart phone |
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| CN217521013U true CN217521013U (en) | 2022-09-30 |
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| CN202123230416.7U Active CN217521013U (en) | 2021-12-21 | 2021-12-21 | Apple sugar degree nondestructive measurement device based on smart phone |
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