CN217359586U - Portable fresh tobacco maturity judging instrument - Google Patents

Abstract

The utility model discloses a portable fresh tobacco maturity judging instrument, which comprises a color value collecting device and a maturity judging device; the color value acquisition device comprises an upper panel and a lower panel, wherein a color sensor matrix and a light source matrix are arranged on the inner side of the upper panel; the upper panel and the lower panel clamp fresh tobacco leaves to form a sealed dark box, the color sensor matrix collects color values of the fresh tobacco leaves exposed under the light source matrix and transmits the color values to the maturity judging device, and the maturity judging device judges the maturity according to the color values of the fresh tobacco leaves. The utility model discloses need not to gather the tobacco leaf image, not influenced by artificial subjectivity and environmental condition, the maturity judged result is easily read by the tobacco grower.

Description

Portable fresh tobacco maturity judging instrument

Technical Field

The utility model relates to a tobacco leaf maturity detects technical field, concretely relates to appearance is judged to portable bright cigarette maturity.

Background

The baking is used as the last step of cigarette raw material production and the first step of industrial processing, and the harvest maturity of fresh cigarettes is the basis and necessary condition for determining the baking quality. The mature characteristics of field tobacco leaves are substantially expressed by yellow pigments such as lutein, carotenoid and the like in the chlorophyll degradation process, and are accompanied by the transformation of chemical substances such as starch, reducing sugar, nicotine and the like. The students make more researches on the judgment indexes of the suitable maturity of the fresh tobacco, such as judgments by the leaf ages of all parts of different growing tobacco plants; zhang tretang (CN 201110069396.1) considers that the maturity can be judged by taking the SPAD value (the relative content of plastid pigment) as a judgment index; wushengjiang (CN 201310195869.1) discloses a method for determining the maturity of tobacco leaves by measuring L a b/L C h color values of the tobacco leaves at multiple points through a color difference meter; the area proportion of yellow and green tobacco leaves and the whitening degree of main pulse are used as quantitative indexes of the maturity of fresh tobacco by people with high constitution brightness and the like; it is also proposed that the tobacco leaf sucrose, alpha amino acid (CN 201720959920.5) and other chemical components are used as judgment indexes, and similar methods are more applied in the United states; in production practice and research, tobacco leaf fluff shedding, stem leaf included angle, conductivity, reflection spectrum characteristics (CN 201410791732.7) and the like are also used as judgment indexes. The judgment method based on the SPAD meter and the colorimeter has the problem that only one point can be measured at each time, although multi-point measurement can be carried out by increasing workload, in actual measurement, the SPAD value and the color value of different points are very different, particularly, when thick fresh tobacco leaves are mature, the yellow and green points are distributed alternately, and even if different parts (leaf tips, leaves, leaf bases and leaf edges) of the normally mature tobacco leaves are very different, the judgment accuracy of the method is still unreliable.

In the aspect of judging the maturity of fresh tobacco, similar patents imitating that the color card is adopted in japan are more, such as gloves (CN 201821741815.5) provided with a tobacco color card, a color card for the maturity of upper leaves of flue-cured tobacco (CN 201220189553.2), a device (CN 201721627389.8) capable of improving the consistency of the maturity of tobacco leaves when the flue-cured tobacco is picked, a hand-operated fan (cn201620857896. x) for distinguishing the maturity of tobacco leaves, an appliance for distinguishing the maturity of tobacco leaves and a distinguishing method thereof (CN 201610648510.9), a portable colorimetric bracelet for harvesting the ripe tobacco leaves (CN 201920288156.2), a method for distinguishing the red variety of flue-cured tobacco (CN 201910658971.8) and a colorimetric ring for grading the maturity of fresh tobacco leaves (CN 201822003998.7). In addition, the color of the normal mature and yellowing of the tobacco leaves in the field shows that the leaves gradually turn yellow from the leaf tips to the leaf bases and from the leaf edges to the leaves, and the main veins gradually turn white and bright from the leaf tips to the leaf bases.

In order to reduce or avoid the problem of strong subjectivity in artificially judging the maturity of the tobacco leaves in the method, a scholars establishes a method for judging the maturity of the fresh tobacco leaves by acquiring the tobacco leaf images and extracting and assigning color characteristics of the images, for example, a tobacco leaf maturity detection method and a detection device (CN 201110144539.0; CN 201120180257.1) convert the acquired tobacco leaf images into HSV (hue/saturation/brightness) color mode images, and the maturity grade is calculated by H, S values and corresponding mathematical models; a method (CN 201811541440.2) for rapidly detecting maturity of flue-cured tobacco leaf comprises collecting color image of tobacco leaf, extracting R value in the image, and calculating maturity value by formula "maturity value =18 × R/255"; a tobacco leaf classification method (CN 201911071652.3) based on coupling of spectrum and machine vision also calculates the maturity by collecting tobacco leaf color images, processing the images and extracting a series of characteristic values of the images. The method needs to collect the image of the tobacco leaf, the operation is tedious, the cost is high, the influence of the luminous environment of the tobacco leaf on the color characteristic of the image is very large when the image is collected, the extraction of the characteristic value of the image and the establishment of a mathematical model can be influenced, and the application range of the model still needs to be solved.

In order to avoid the influence of environmental factors on the color characteristics of the image in the process of acquiring the tobacco leaf image, Shenping et al (fresh tobacco leaf maturity judging tobacco technology based on a leaf color off-state distribution mode 54.08(2021): 26-35.) pick the tobacco leaves, then place the picked tobacco leaves on a specific light source and a specific platform to acquire the tobacco leaf image, extract a plurality of color parameters, perform modeling through a reverse transmission neural network and the like, and judge the maturity of the tobacco leaves. However, the method still needs to judge the maturity of the tobacco leaves under specific conditions by the aid of various devices after the tobacco leaves are picked. However, the significance of judging the maturity of the tobacco leaves is to guide the tobacco leaf producer to judge whether the leaves growing on the tobacco plants meet the maturity standard in advance, and further realize the harvest with proper maturity.

Disclosure of Invention

The invention aims to: the utility model aims to solve the defects of the prior art, the utility model provides a portable bright tobacco maturity judging instrument and judging method thereof, simple structure, the simple operation need not to gather the tobacco leaf image, does not receive artificial subjective and environmental condition influence, and the maturity judged result is easily read by the tobacco grower, and the cost is lower, easily popularizes and applies.

The technical scheme is as follows: the utility model relates to a portable fresh tobacco maturity judging instrument, which comprises a color value collecting device and a maturity judging device; the color value acquisition device comprises an upper panel and a lower panel, wherein a color sensor matrix and a light source matrix are arranged on the inner side of the upper panel; the upper panel and the lower panel clamp fresh tobacco leaves to form a sealed dark box, the color sensor matrix collects color values of the fresh tobacco leaves exposed under the light source matrix and transmits the color values to the maturity judging device, and the maturity judging device judges the maturity according to the color values of the fresh tobacco leaves.

Further perfecting the technical scheme, the color sensor matrix is formed by arranging 15-25 color sensors in a matrix, the light source matrix is formed by arranging 8-16 light sources in a matrix, and a single light source is arranged at the center of four 2 multiplied by 2 array color sensors.

Further, the color sensor is a RGB (red, green and blue) three-color sensor, the light source is an LED lamp, and the color sensor is provided with a light blocking sleeve for blocking direct light emitted by the LED lamp.

Further, the inner side of the lower panel is of a black frosted flat plate structure.

Furthermore, the inboard edge of upper panel is equipped with flexible sealing washer, the inboard edge of lower panel corresponds flexible sealing washer and is equipped with down flexible sealing washer.

Further, the color sensor is provided with a light blocking sleeve for blocking direct light emitted by the LED lamp.

Further, the color value collecting device is 35-45 cm long, 15-20 cm wide and 2-4 cm thick; the height of the light blocking sleeve is 0.4-0.8 cm, and the distance between the bottom end of the light blocking sleeve and the inner side plate surface of the lower panel or the fresh tobacco leaves to be detected is 0.4-1 cm.

Furthermore, the upper flexible sealing ring and the lower flexible sealing ring are foam strips with the thickness of 2mm and the width of 5 mm.

Furthermore, be equipped with power module and controller in the upper panel, the controller with carry out the data interaction after maturity decision maker connects, maturity decision maker output control command extremely the controller, the controller starts color sensor matrix and light source matrix according to control command and carries out fresh tobacco leaf colour value collection, and the colour value of collection sends through the controller to maturity decision maker, maturity decision maker carries out the maturity according to the colour value of fresh tobacco leaf and judges.

Furthermore, the maturity determination device comprises a color value transmission unit, a maturity value calculation unit, a maturity determination unit and an input and output unit, wherein the color value transmission unit is used for receiving the color value sent by the controller and transmitting the color value to the maturity calculation unit, the maturity value calculation unit calculates the maturity value according to the color value and outputs the maturity value to the maturity determination unit, the maturity determination unit outputs a maturity determination result according to a determination interval where the maturity value is located, and the input and output unit is used for receiving setting input of the maturity determination interval and display output of the maturity value and the maturity determination result.

Further, the maturity judging device is an intelligent terminal.

Has the advantages that: compared with the prior art, the utility model has the advantages of: the utility model forms a sealed dark box after the upper panel and the lower panel clamp the tobacco leaves, provides light through the light source matrix of the upper panel, ensures that the light is consistent in the collection process of the color of the tobacco leaves each time, and avoids the influence of the light on color collection under different weather; color acquisition is carried out on the leaves on one side of the main vein of the fresh tobacco by adopting a color sensor matrix, a color acquisition area covers half leaves, the uniformity of acquisition points is ensured by a matrix design, the RGB acquired by the color sensor matrix is subjected to equalization treatment, and the deviation caused by acquiring only part of tobacco leaf areas is avoided; the maturity value is calculated fast through the built-in calculation model of maturity decision maker to can set up the maturity according to the difference and judge the interval according to the tobacco planting region, different maturity requirements, realize that the maturity is judged fast accurately, it is efficient, need not to gather the tobacco leaf image, required computational resource is little, and the output result is accurate.

The portable fresh tobacco maturity judging instrument provided by the utility model has the advantages of simple structure, small volume and low cost; when the device is used, the judging result of the maturity value of the leaf can be obtained only by clamping the leaf on one side of the main vein of the fresh tobacco leaves, the operation is convenient, the maturity of the leaf can be accurately judged without professionals, the popularization is easy, and the blank of portable fresh tobacco leaf maturity judging equipment in the market is filled.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of the device for collecting color values of the present invention;

fig. 3 is a schematic structural view of an upper plate in the present invention;

fig. 4 is a schematic structural view of a middle lower panel of the present invention;

fig. 5 is an exploded view of the upper plate of the present invention;

fig. 6 is a schematic diagram for judging the maturity of the fresh tobacco leaves in the utility model.

In the figure: 1. the device comprises an upper panel, 2 a lower panel, 3 a light source, 4 a color sensor, 5 a light blocking sleeve, 6 an upper sealing ring, 7 a controller, 8 a power supply module, 9 a lower sealing ring, 10 and a handle.

Detailed Description

The technical solution of the present invention is described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the embodiments.

As shown in fig. 1, the utility model provides a portable bright cigarette maturity decision appearance, including colour value collection system and maturity decision device, maturity decision device adopts intelligent terminal such as cell-phone, and colour value collection system is furnished with scalable multi-functional data line, can satisfy the connection of various types of cell-phone interface.

As shown in figure 2, the color value acquisition device is a handheld clamping type device, the length of the handheld clamping type device is 35-45 cm, the width of the handheld clamping type device is 15-20 cm, the thickness of the handheld clamping type device is 2-4 cm, and the main structure of the handheld clamping type device comprises an upper panel 1 and a lower panel 2.

As shown in fig. 3, a light source matrix (color temperature 6000K) and a color sensor matrix are uniformly arranged on the inner panel surface of the upper panel 1, the color sensor matrix includes 20 color sensors 4 arranged in 4 rows and 5 columns, and the light source 3 is disposed in the center of the color sensors 4 in a 2 × 2 array. The light source 3 is an LED lamp, the periphery of the color sensor 4 is sleeved by a square or round light blocking sleeve 5 with the length of about 0.5cm, the light blocking sleeve is used for blocking direct light emitted by the light source from interfering the capture of reflected light of fresh tobacco leaves by the color sensor 4 so as to influence the judgment of color values, and meanwhile, the distance between the tail end of the light blocking sleeve 5 and the inner side of the lower panel 2 or the surface (clamped tobacco leaves) of the tobacco leaves to be detected is ensured to be 0.4-1 cm.

As shown in fig. 3 and 4, the inner edge of the upper panel 1 is adhered with a foam strip with the thickness of 2mm and the width of 5mm to form an upper sealing ring 6, the lower panel 2 is a black frosted (non-reflective) flat plate, the inner edge is adhered with a foam strip with the thickness of 2mm and the width of 5mm to form a lower sealing ring 9, and the lower sealing ring completely corresponds to the upper sealing ring 6 of the upper panel 1 when clamping tobacco leaves, so that the effects of avoiding light and preventing the tobacco leaves from being damaged are achieved.

As shown in fig. 5, a controller 7, a 10000 ma power module 8 and a charging jack are arranged in the upper panel, and the power module 8 is used by the color sensor 4 and the light source.

As shown in fig. 6, data interaction is carried out after controller 7 and maturity decision device are connected, and maturity decision device output control instruction to controller 7, and controller 7 starts color sensor matrix and light source matrix according to control instruction and carries out fresh tobacco leaf colour value collection, and the colour value of collection sends maturity decision device through the controller. Maturity decision device includes color value transmission unit, maturity value computational element, maturity decision unit and input/output unit, color value transmission unit is used for receiving the color value that the controller sent and transmits to maturity computational element, maturity value computational element calculates according to the color value and obtains the maturity value and export to maturity decision unit, maturity decision unit is according to the decision interval output maturity decision result that the maturity value was located, input/output unit is used for receiving the setting and the maturity value of maturity decision interval, the display output of maturity decision result.

After a color value collecting device switch is started during measurement, a multifunctional data connecting line or Bluetooth on the color value collecting device is connected with a mobile phone, an upper panel 1 and a lower panel 2 are opened through a handle 10, and a middle section (15 cm of a leaf tip and a leaf base is not used as a measurement range) on one side of a main vein of fresh tobacco leaves is clamped to form a relatively airtight and lightproof dark box. Open cell-phone APP and click "fresh tobacco maturity survey" function, the host computer opens light source matrix and color sensor matrix promptly and gathers fresh tobacco leaf colour value (basic three-colour red R, green G and blue B), carry out the colour through the matrix of 20 color sensor 4 constitutions and gather the blade, can obtain 20 groups R value, G value, B value, transmit RGB value to cell-phone APP through data line or bluetooth, the average value of taking 20 groups R value, G value, B value is input to tobacco leaf maturity and is judged the model, tobacco leaf maturity value calculation model Y = 0.738R-0.759 (G-R) -0.653B through establishing in the APP, show maturity value information on the cell-phone immediately, express with the Y value.

Because the required harvesting maturity of different tobacco leaf producing areas, different tobacco varieties, different tobacco leaves at different positions and the same variety and the same tobacco leaf position under different climatic conditions of different years in the same producing area can be different, a tobacco leaf production technology guidance department in the same tobacco area can select 10-20 pieces of tobacco leaves suitable for maturity in the field according to the quality of fresh tobacco in the current year to determine the Y value range suitable for harvesting the tobacco leaves, and the Y value range is transmitted to each basic technology guidance unit (such as a tobacco station), so that the tobacco leaf maturation harvesting guidance work can be carried out quantitatively, and the accurate maturity of the tobacco leaves is promoted. Maturity value (Y value) range: within this range is well done, over done by more than 10% above the upper limit of the range, under done by 10% to 20% below the lower limit of the range, and under done by 20% below the lower limit of the range.

The utility model forms a sealed dark box after the upper panel and the lower panel clamp the tobacco leaves, provides light through the light source matrix of the upper panel, ensures that the light is consistent in the collection process of the color of the tobacco leaves each time, and avoids the influence of the light on color collection under different weather; color acquisition is carried out on the leaves on one side of the main vein of the fresh tobacco by adopting a color sensor matrix, a color acquisition area covers half leaves, the uniformity of acquisition points is ensured by a matrix design, the RGB acquired by the color sensor matrix is subjected to equalization treatment, and the deviation caused by acquiring only part of tobacco leaf areas is avoided; the maturity value is calculated rapidly through the built-in calculation model of maturity decision maker to can set up the maturity according to different regions, different requirements and judge the interval, realize that the maturity is judged fast accurately, it is efficient, need not to gather the tobacco leaf image, required computational resource is little, and the output result is accurate.

As noted above, while the invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited to the invention itself. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides a appearance is judged to portable bright cigarette maturity which characterized in that: the device comprises a color value acquisition device and a maturity judgment device; the color value acquisition device comprises an upper panel and a lower panel, wherein a color sensor matrix and a light source matrix are arranged on the inner side of the upper panel; the upper panel and the lower panel clamp fresh tobacco leaves to form a sealed dark box, the color sensor matrix collects color values of the fresh tobacco leaves exposed under the light source matrix and transmits the color values to the maturity judging device, and the maturity judging device judges the maturity according to the color values of the fresh tobacco leaves.

2. The portable fresh tobacco maturity judging instrument according to claim 1, wherein: the color sensor matrix is formed by 15-25 color sensors in matrix arrangement, the light source matrix is formed by 8-16 light sources in matrix arrangement, and the light sources are arranged at the centers of the four 2X 2 array color sensors.

3. The portable fresh tobacco maturity judging instrument of claim 2, wherein: the color sensor is an RGB (red, green and blue) three-color sensor, the light source is an LED lamp, and the color sensor is provided with a light blocking sleeve for blocking direct light emitted by the LED lamp.

4. The portable fresh tobacco maturity judging instrument according to claim 3, wherein: the inner side of the lower panel is of a black frosted flat plate structure.

5. The portable fresh tobacco maturity judging instrument according to claim 4, wherein: the inboard edge of top panel is equipped with flexible sealing washer, the inboard edge of bottom panel corresponds last flexible sealing washer and is equipped with flexible sealing washer down.

6. The portable fresh tobacco maturity judging instrument according to claim 5, wherein: the color value acquisition device is 35-45 cm long, 15-20 cm wide and 2-4 cm thick, the height of the light blocking sleeve is 0.4-0.8 cm, and the distance between the bottom end of the light blocking sleeve and the inner side plate surface of the lower panel or fresh tobacco leaves to be detected is 0.4-1 cm.

7. The portable fresh tobacco maturity judging instrument according to claim 6, wherein: the upper flexible sealing ring and the lower flexible sealing ring are foam strips with the thickness of 2mm and the width of 5 mm.

8. The portable fresh tobacco maturity judging instrument according to claim 1, wherein: the upper panel is internally provided with a power module and a controller, the controller performs data interaction after being connected with the maturity judging device, the maturity judging device outputs a control instruction to the controller, the controller starts a color sensor matrix and a light source matrix according to the control instruction to collect color values of fresh tobacco leaves, the collected color values are sent to the maturity judging device through the controller, and the maturity judging device performs maturity judgment according to the color values of the fresh tobacco leaves.

9. The portable fresh tobacco maturity judging instrument of claim 8, wherein: the maturity judging device comprises a color value transmission unit, a maturity value calculation unit, a maturity judging unit and an input and output unit, wherein the color value transmission unit is used for receiving a color value sent by the controller and transmitting the color value to the maturity calculation unit, the maturity value calculation unit calculates a maturity value according to the color value and outputs the maturity value to the maturity judging unit, the maturity judging unit outputs a maturity judging result according to a judging interval where the maturity value is located, and the input and output unit is used for receiving setting input of the maturity judging interval and display output of the maturity value and the maturity judging result.

10. The portable fresh tobacco maturity judging instrument according to claim 9, wherein: the maturity judging device is an intelligent terminal.

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