CN202110131U

CN202110131U - Device for testing tobacco maturity

Info

Publication number: CN202110131U
Application number: CN2011201802571U
Authority: CN
Inventors: 汪强; 席磊; 马新明; 任艳娜; 李艳玲; 张�浩; 郑光; 王晓磊
Original assignee: Henan Agricultural University
Current assignee: Henan Agricultural University
Priority date: 2011-05-31
Filing date: 2011-05-31
Publication date: 2012-01-11
Anticipated expiration: 2021-05-31

Abstract

The utility model relates to a device for testing the tobacco maturity. The device mainly includes an image collecting unit, a data input unit, a process control unit and a data output unit and/or data storage unit, wherein images of a to-be-tested tobacco are collected by the image collecting unit, and then processed, so as to establish or convert into images in the HSV (hue, saturation and value) color mode, and obtain the H and S color component values of the images; and the (maturity degree) MD of the to-be-tested tobacco can be calculated according to the given mathematical model. The device can be used for judging the MD of the tobacco through the collected tobacco, has the advantages of being quick at field and being on spot, and living body undamaged testing, enables the maturity judgment of the tobacco to be straightforward and quantified, has strong operability, and is beneficial to the harvesting of the tobacco at the right time as well as the improvement on homogeneity of the early flue-cured tobacco and the tobacco quality. As in the method provided by the utility model, the two color component values of the H (hue) and the S (saturation) in the image HSV color model are selected as the judge model parameters, and the component valve of the V (value) is abandoned, the model building is shielded from being influenced by the value in the images.

Description

Tobacco leaf degree of ripeness pick-up unit

Technical field

The utility model relates to tobacco planting, processing technique field, is specifically related to a kind of tobacco leaf degree of ripeness pick-up unit.

Background technology

The degree of ripeness of tobacco leaf is to weigh the first element of quality of tobacco, is the core of quality of tobacco, and is closely related with the color of tobacco leaf.Research and production practices think that the inherent chemical constitution of the tobacco leaf that degree of ripeness is good is coordinated, fragrance matter is good, the perfume quantity foot.See that from the angle of baking the tobacco leaf that degree of ripeness is good toasts easily, it is high that the medium grade cigarette ratio is gone up in roasting back, and planting benefit might as well.Ripe in fact purpose of gathering is exactly in order to guarantee and to improve the interior quality and the appearance ratings quality of tobacco leaf, have more first-class cigarette, increasing benefit.It is one of key link and the gordian technique of producing sound tobacco that maturation is gathered.Grasp and judgement field tobacco leaf degree of ripeness are significant to timely collecting and science modulation.Current, be the bottleneck that restriction China quality of tobacco improves to tobacco leaf maturity assessment shortage system, quantitative examination accurately.And some advanced product cigarette states gather to the tobacco leaf maturation and have carried out going deep into systematic research.

At present, the common method of tobacco leaf degree of ripeness judgement has: 1. judge through the long-term production practical experience; 2. carry and pluck tobacco sample the last week and carry out chemical composition analysis and judge, commonly used in the U.S.; 3. judge through the method for colorimetric card colorimetric; 4. judge with the quantizating index of the ripe color image color of tobacco leaf, barn test and drawer test.In the existing tobacco leaf degree of ripeness determination methods, 1., 3. method has very big subjectivity, lack the accuracy of judging; Can judge after obtaining relevant data target 2., 4. need experimentizing in the method, can not carry out real-time judge to the tobacco leaf degree of ripeness, lack practicality in the field.

Summary of the invention

The technical matters that the utility model will solve provides a kind of objective, tobacco leaf degree of ripeness pick-up unit accurately, and this pick-up unit can on-the-spotly detect the tobacco leaf degree of ripeness, and is quick, practical.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:

A kind of tobacco leaf degree of ripeness pick-up unit; This device comprises image acquisition units, data input cell, processing and control element (PCE) and data output unit and/or data storage cell; Said processing and control element (PCE) is controlled the view data that said image acquisition units is gathered tobacco leaf to be detected; This processing and control element (PCE) obtains the view data of being gathered after calculation process is obtained its H, S color component value from said image acquisition units; And after obtaining the phyllotaxy value of tobacco leaf to be detected through said data input cell; Draw the degree of ripeness grade MD of this tobacco leaf to be detected by this processing and control element (PCE) according to following computation model computing again, and deliver to said data output unit demonstration and/or data storage cell storage:

Figure 2011201802571100002DEST_PATH_IMAGE001

In the formula, MD-degree of ripeness grade, H in the hsv color model of H/S-tobacco leaf image and the ratio of S, f-coefficient, PHY-can be gathered in the crops the phyllotaxy from top to bottom (phyllotaxy) of tobacco leaf.

Said image acquisition units is camera, camera or video camera.

Said data input cell is keyboard and/or read-write pen, perhaps is touch-screen, perhaps is read-write pen and touch-screen.

Said processing and control element (PCE) is any one in 51 series monolithics, AVR single-chip microcomputer, PIC single-chip microcomputer, the arm processor, or the CPU processor for being complementary.The single-chip microcomputer or the processor that can read, handle and export view data all can use.

Said data output unit is that display screen is or/and mini-printer.

The utlity model has actively useful effect:

(1) the utility model method and degree of ripeness pick-up unit are judged the degree of ripeness of tobacco leaf through the tobacco leaf image that collects; Have the field fast, the advantage of on-the-spot, live body non-destructive determination; Realized the digitizing of degree of ripeness appearance standard; Can make that the ripe judgement of tobacco leaf is directly perceived, quantification, strong operability, help timely collecting and improve the homogeney and the quality of tobacco of junior tobacco leaf.

(2) value of the H (form and aspect) in the judgment models parameters selection image hsv color model and two color components of S (saturation degree) in the utility model method; And given up the value of V (brightness) component; So just shielded that brightness is to the influence of modelling in the image, its advantage is:

1. the image of tobacco leaf sample can directly be gathered in the field, need in the laboratory, not gather according to specific light source, specific conditions such as focal length; Because when tobacco leaf image is gathered in the field, can be because of the influence of factors such as weather, illumination, the brightness of the image that obtains is different.Set up the judgment models of using in the utility model, get rid of in the tobacco leaf image brightness to setting up the influence of model through abandoning V (brightness) component in the hsv color component.

2. improved the accuracy of model greatly,, given up the value of tobacco leaf image V component, so just reduced owing to the influence of luminance factor in the experimental situation to model owing to used (H/S) in the hsv color pattern in the model.

Description of drawings

Fig. 1 is a kind of structural principle synoptic diagram of tobacco leaf degree of ripeness pick-up unit;

Fig. 2 is a kind of circuit theory synoptic diagram of tobacco leaf degree of ripeness pick-up unit.

Embodiment

1 one kinds of tobacco leaf degree of ripeness of embodiment pick-up unit; Referring to Fig. 1, Fig. 2; Comprise OV7670 CMOS camera, keyboard, AT89LV51 single-chip microcomputer, communication interface, LCD display, data-carrier store, power supply; AT89LV51 Single-chip Controlling OV7670 CMOS camera obtains the view data of tobacco leaf to be detected; Transmit it to H, the S color component value of obtaining this tobacco leaf image after the AT89LV51 single-chip microcomputer is handled again, obtain the phyllotaxy value PHY of tobacco leaf to be detected again through keyboard, draw the degree of ripeness grade MD of this tobacco leaf to be detected again by this AT89LV51 single-chip microcomputer according to following computation model computing:

In the formula, MD-degree of ripeness grade, H in the hsv color model of H/S-tobacco leaf image and the ratio of S, f-coefficient, PHY-can be gathered in the crops the phyllotaxy from top to bottom (phyllotaxy) of tobacco leaf;

Again gained MD information is delivered to LCD display demonstration and the storage of data-carrier store unit, can send mini-printer to print the relevant detection result simultaneously, can set up data communication through communication interface and computing machine in case of necessity.

2 one kinds of tobacco leaf degree of ripeness of embodiment pick-up unit; Constitute by camera, portable computer; Connect through data communication line between the two; Operational model described in image data process software and the embodiment 1 is installed in the portable computing, and the tobacco leaf image data that camera is gathered can draw corresponding degree of ripeness grade MD according to following method:

(1) the phyllotaxy PHY (phyllotaxy) of observed and recorded tobacco leaf to be detected, the inserted part of reflection blade;

(2) obtain the JPG format-pattern of tobacco leaf to be detected with camera, this image is handled to set up the image of hsv color pattern, obtain H, the S color component value of this image;

(3) divide the degree of ripeness grade MD of tobacco leaf to be detected according to following formula,

Under the situation that satisfies the utility model function; Change each functional unit in the foregoing description parameter, functional unit be equal to replacement; The increase and decrease of part parts and material replacement etc.; Can form a plurality of concrete embodiment, be the common variation range of the utility model, detail no longer one by one at this.

Claims

1. tobacco leaf degree of ripeness pick-up unit; It is characterized in that; This device comprises image acquisition units, data input cell, processing and control element (PCE) and data output unit and/or data storage cell; Said processing and control element (PCE) is controlled the view data that said image acquisition units is gathered tobacco leaf to be detected; This processing and control element (PCE) obtains the view data of being gathered after calculation process is obtained its H, S color component value from said image acquisition units; And after obtaining the phyllotaxy value of tobacco leaf to be detected through said data input cell, computing draws the degree of ripeness grade MD of this tobacco leaf to be detected according to computation model by this processing and control element (PCE) again, and delivers to that said data output unit shows and/or the data storage cell storage.

2. tobacco leaf degree of ripeness pick-up unit according to claim 1 is characterized in that said computation model is following:

Figure 2011201802571100001DEST_PATH_IMAGE002

Figure 2011201802571100001DEST_PATH_IMAGE004

In the formula, MD-degree of ripeness grade, H in the hsv color model of H/S-tobacco leaf image and the ratio of S, f-coefficient, PHY-can be gathered in the crops the phyllotaxy from top to bottom of tobacco leaf.

3. tobacco leaf degree of ripeness pick-up unit according to claim 1 is characterized in that said image acquisition units is camera, camera or video camera.

4. tobacco leaf degree of ripeness pick-up unit according to claim 1 is characterized in that, said data input cell is keyboard and/or read-write pen, perhaps is touch-screen, perhaps is read-write pen and touch-screen.

5. tobacco leaf degree of ripeness pick-up unit according to claim 1 is characterized in that, said processing and control element (PCE) is any one in 51 series monolithics, AVR single-chip microcomputer, PIC single-chip microcomputer, the arm processor, or the CPU processor for being complementary.

6. tobacco leaf degree of ripeness pick-up unit according to claim 1 is characterized in that, said data output unit is that display screen is or/and mini-printer.