CN204789310U - Device of mould worry of automated inspection apple and data measurement equipment thereof - Google Patents

Abstract

Device of mould worry of automated inspection apple and data measurement equipment thereof, the data measurement equipment of the device of the mould worry of automated inspection apple wherein, which comprises a main frame, be provided with vertical lead screw on the body frame, the lead screw bottom is provided with spacing stroke sensor, be provided with the slip table on the lead screw, the stepper motor drives slip table moves on the lead screw, the apple supporting seat is connected to the slip table, be the LED light source directly over the apple supporting seat, the infrared correlation pipe of switching mode is installed outward to the LED light source, it is parallel with the array plane of LED light source to the ray that the infrared correlation of switching mode is managed, the slip table drives the apple upward movement that awaits measuring on the apple supporting seat, when stopping, the apple stops to being awaited measuring to the ray of the infrared correlation of switching mode pipe, acquire the malic diameter that awaits measuring according to the motion distance, photodiode is installed at the center of apple supporting seat, receive to pass through and await measuring malic light and convert it into voltage signal, the device of the mould worry of automated inspection apple includes the treater, judge according to diameter and voltage signal whether the apple that awaits measuring there is mould worry, the utility model discloses a mould worry detecting system's integration.

Description

The device of automatic detection Apple Mould Core and DATA REASONING equipment thereof

Technical field

The utility model belongs to agriculture technical field of intelligent equipment, particularly a kind of equipment of automatic detection Apple Mould Core.

Background technology

Apple Mould Core, also known as heartrot, is the Major Diseases of harm apple internal quality, and the incidence of disease of red fuji apple is general higher in recent years, and the general incidence of disease is about 21%, especially fruit-bagged Fuji, and its incidence of disease is up to 43.5%-79.5%.The main period of Apple Mould Core morbidity is in fructescence and storage period.Early-mid ripening apple most of appearance after maturation is gathered is differentiated not out, but comes into the market or morbidity fruit in consumer's hand can not eat; After late variety enters fruit storehouse, expansion and morbidity can be continued in storage period, full fruit be rotted, has no edibility.Neurotoxin contained by mould worry has affects toxicological effects such as giving birth to, carcinogenic and immune, and therefore, mould worry detects has become apple industry significant problem urgently to be resolved hurrily.

At present less for the detection method research of Apple Mould Core, its technology is mainly based on principles such as the bio-impedance characteristic of apple, light characteristic and machine vision characteristics, and wherein the input parameter that relates to of bio-impedance characteristic is more; The detection mode that light characteristic many application all band light source is combined with spectrometer, containing more redundant information, system cost is high; Machine Vision Detection analytic process is complicated, consuming time, and there is no the more suitable detecting instrument detected for mould worry at present.The detection developing into Apple Mould Core of spectrum detection technique provides theoretical foundation.This technology have harmless, efficiency is high, speed is fast, cost is low, favorable reproducibility, sample are convenient without the need to pre-service, spectral measurement, be applicable to the unique advantage such as Site Detection and on-line analysis.But do not utilize the related application of this technology at present yet.

Summary of the invention

In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is the equipment providing a kind of automatic detection Apple Mould Core, can Fast nondestructive evaluation Apple Mould Core, there is cost low, simple to operate, stable and reliable operation, disease discrimination precision high.

To achieve these goals, the technical solution adopted in the utility model is:

The DATA REASONING equipment of the device of automatic detection Apple Mould Core, comprise the body frame 7 longitudinally arranged, body frame 7 is provided with longitudinal leading screw 2, the bottom of leading screw 2 is provided with stroke-limit sensor 8, leading screw 2 is provided with slide unit 3, stepper motor 1 connects slide unit 3 and drives it to move on leading screw 2, slide unit 3 connects apple supporting seat 4, it is LED light source 6 directly over apple supporting seat 4, LED light source 6 is planar array structure, outside it, switching mode infrared emission pipe 5 is installed, switching mode infrared emission pipe 5 parallel with the array plane of LED light source 6 to ray, slide unit 3 drives the apple to be measured on apple supporting seat 4 to move upward, to being stopped by during apple stop to be measured ray of switching mode infrared emission pipe 5, the diameter of apple to be measured is obtained according to move distance, the center of described apple supporting seat 4 is provided with photodiode 9, described photodiode 9 is as electrooptical device, be connected with amplifier chip OP07, receive the light transmitted through apple to be measured and be converted into voltage signal.

The utility model additionally provides the device of the automatic detection Apple Mould Core utilizing described DATA REASONING equipment, comprise the processor of built-in judgment models, diameter and the voltage signal of described apple to be measured are all connected to processor, judge whether apple to be measured has mould worry according to diameter and voltage signal.

Described stroke-limit sensor 8 is H with the vertical distance of switching mode infrared emission pipe 5, described stepper motor 1 is connected with described processor, when being stopped by apple to be measured ray of switching mode infrared emission pipe 5, the vertical motion distance L of slide unit 3 is obtained, then the diameter D=H-L of apple to be measured according to the revolution of stepper motor 1 and rotating speed.

The negative electrode of described photodiode 9 is connected with one end of resistance R2 and electric capacity C4, another termination VCC of resistance R2, the other end ground connection of electric capacity C4, resistance R2 and electric capacity C4 forms RC low-pass filter, eliminate the high frequency noise that VCC brings, the anode of photodiode PD is connected with one end of resistance R3 and resistance R5, the other end ground connection of resistance R3, one end of the other end connecting resistance R4 of resistance R5 and the positive input of amplifier chip OP07, the other end ground connection of resistance R4, the reverse input end of amplifier chip OP07 is by resistance R1 ground connection, the output terminal of amplifier chip OP07 is by resistance R6 ground connection and output terminal is connected to filter capacitor C3, the output terminal of amplifier chip OP07 is connected with processor, to its output voltage signal.

Described LED light source 6 adopts centre wavelength to be 710nm, half band-width is the LED of 25nm, the PT4115 chip adopting output current adjustable is as driving chip, processor is connected with driving chip, regulated the output current of driving chip by the pwm signal exporting different duty, thus realize the stable quantitatively adjustment of LED light source 6 luminous intensity.

Described judgment models is:

D≤70；

$Y=\left\{\begin{array}{cc}1& (V\≤90);\\ 0& (V>90);\end{array}\right.$

70<D≤80；

$Y=\left\{\begin{array}{cc}1& (V\&le;80+160-2\&times;D);\\ 0& (V>80+160-2\&times;D);\end{array}\right.$

80<D≤85；

$Y=\left\{\begin{array}{cc}1& (V\&le;60+340-4\&times;D);\\ 0& (V>60+340-4\&times;D);\end{array}\right.$

85<D≤90；

$Y=\left\{\begin{array}{cc}1& (V\&le;35+450-5\&times;D);\\ 0& (V>35+450-5\&times;D);\end{array}\right.$

90<D；

$Y=\left\{\begin{array}{cc}1& (V\&le;30);\\ 0& (V>30);\end{array}\right.$

Wherein, D is the apple diameter obtained, and unit is mm; Opto-electronic conversion voltage difference is V, and unit is mv, the conversion voltage value obtained after namely opening light source and the difference of not opening the conversion voltage value that light source obtains, and Y represents differentiation result, Y=1, is expressed as disease fruit; Y=0, is expressed as healthy fruit.

Compared with prior art, the utility model utilizes visible ray-NIR transmittance spectroscopy, apple diameter based on narrow-band light source and the mould worry absorbance of impact detects Apple Mould Core, breach Apple Mould Core Fast nondestructive evaluation theory and means, promptly and accurately morbidity apple can be sorted out when apple is put in storage, the large area of Apple Mould Core germ is prevented to infect, significantly reduce the incidence of disease of apple at storage, and this detector can be used to fruit graded sorting in production line, for building " high yield, high-quality, efficiently, ecological, safety " modern Apple Industry system to provide the necessary technical support, project achievement easily extensible is applied to the Fast nondestructive evaluation of other fruit interior quality simultaneously.

Accompanying drawing explanation

Fig. 1 is the transmission spectrum curve figure of the sick fruit of Apple Mould Core of different onset degree.

Fig. 2 is the utility model system architecture schematic diagram.

Fig. 3 is the utility model spectral detection modular circuit schematic diagram.

Fig. 4 is the utility model physical construction schematic diagram.

Fig. 5 is the utility model apple supporting seat vertical view.

Fig. 6 is the utility model apple supporting seat cut-open view.

Fig. 7 is the utility model overhaul flow chart.

Embodiment

Embodiment of the present utility model is described in detail below in conjunction with drawings and Examples.

Theoretical foundation of the present utility model:

Apple is by after mould worry infection process morbidity, its ventricle biological tissue molecule morphs, to the absorption of spectrum, reflection acts on scattering etc. and changing, thus cause visible/near infrared transmission spectrum curve different, the tungsten halogen lamp light source of test employing 4 50W, marine optics spectrometer USB2000+ and computing machine construct Apple Mould Core spectral response characteristic and seek platform, this platform is utilized to carry out transmitted spectrum measurement to 500 apple sample and cut along carpopodium place, wherein get the spectrum picture curve of the mould worry fruit of 27 close different onset degree of Apples footpath, as shown in Figure 1.

Analysis chart 1 is known, in the wavelength band that spectrometer can respond, the wave band of 690nm-730nm responds best wave band to Apple Mould Core, and increase gradually along with the occurring degree of the sick fruit of Apple Mould Core, reducing gradually through peak of transmission spectrum curve, the increase directly reflecting Apple Mould Core occurring degree makes the transmitted spectrum intensity level of this wave band reduce, simultaneously according to lambert's beer's law, the difference of apple diameter, cause the distance of light source apart from spectrum acquisition device, the i.e. change of light path, thus the decay of derivative spectomstry intensity, therefore according to above-mentioned principle, known spectra absorption value just can measure the occurring degree of Apple Mould Core fruit with fruit footpath value.

The system architecture developed based on this principle as shown in Figure 2, comprises

LED light source module, light source adopts centre wavelength to be 710nm, half band-width is the LED light source of 25nm, the PT4115 chip that driving chip adopts output current adjustable, regulated the output current of PT4115 by the pwm signal exporting different duty, thus realize the stable quantitatively adjustment of LED light source luminous intensity.Finally send the light of corresponding light intensity, irradiate the center in apple to be measured.

Spectral detection module, adopt the FDS1010 type photodiode of THORLABS company, photoelectric conversion circuit such as Fig. 3 shows.First at the RC low-pass filter that voltage input end adopts resistance R2 and electric capacity C4 to form, eliminate the high frequency noise that power supply brings, secondly amplifier chip OP07 is adopted to be amplified by the voltage V0 that sampling resistor R3 holds, and at output voltage Vout termination filter capacitor C3, finally get actual effective magnitude of voltage.

Fruit footpath on-line measurement module, adopt indirect measure, comprise vertical mobile device and horizontally disposed infrared emission pipe, apple to be measured to be positioned at immediately below infrared emission pipe correlation center and to be arranged on vertical mobile device, driven by vertical mobile device and move upward, when apple upper surface cuts off infrared emission line, obtain apple diameter D=(H-L), wherein H is the vertical distance initial value of vertical mobile device and infrared emission pipe, and L is the climb of vertical mobile device.

Key-press module and display module, main realization and user's is mutual, and before starting to detect, user needs to be configured system, main select tested sample apple the place of production, kind and storage time, confirm after configuration successful to start to detect, after detection, show testing result.

Core processing module, with the MSP430F149 single-chip microcomputer of Texas Instruments for core processor, the magnitude of voltage that receiving spectrum detection module obtains, corresponding transmitted light intensity values is calculated according to this magnitude of voltage, receive described diameter data simultaneously, comprehensive transmitted light intensity values and diameter data, judged whether mould worry.

In the transition process of light signal-electric signal-light signal, mainly have passed through photodiode and amplification module:

Wherein the characteristic of photodiode is: V ₀=P* β * R _lwherein V ₀for sampling resistor both end voltage; P is the light intensity value of unit wavelength, unit W, R _lsampling resistor value; β is the photosensitive coefficient of photodiode, and unit is A/W.

The wavelength band of light source is that the photosensitive coefficient of 690nm to 730nm, FDS1010 photodiode in this wave band is linear, and formula is β=(0.4* λ-142)/300; Wherein λ is wavelength.

Therefore V ₀=P* β * R _l=P*R _l* (0.4* λ-142)/300

$P=\frac{V_0*300}{R_L*(0.4*\mathrm{\&lambda;}-142)}$

The total intensity that light source sends $Q={\&Integral;}_{690}^{730}\frac{V_0*300}{R_L*(0.4*\mathrm{\&lambda;}-142)}\mathrm{d\&lambda;}$

Apple morbidity affects spectral transmission intensity level with apple diameter simultaneously, therefore this instrument obtains apple diameter and lit transmissive value, in input Apple Mould Core discrimination model, if fruit footpath is D (unit mm), opto-electronic conversion voltage difference is V (unit mv), V is the conversion voltage value obtained after opening light source and the difference of not opening the conversion voltage value that light source obtains herein, i.e. V=V0 (luminous environment)-V0 (dark situation);

Y represents that (Y=1, is expressed as disease fruit to differentiation result; Y=0, is expressed as healthy fruit);

First judge which diameter range fruit footpath is in, mainly be divided into (be less than or equal to 70mm, be greater than 70 be less than or equal to 80mm, be greater than 80 be less than or equal to 85mm, be greater than 85 be less than or equal to 90mm, be greater than 90mm) five diameter ranges, and then the voltage difference of acquisition is compared with the threshold value in this diameter range, i.e. discrimination formula:

D≤70；

$Y=\left\{\begin{array}{cc}1& (V\&le;90);\\ 0& (V>90);\end{array}\right.$

70<D≤80；80<D≤85；

$\begin{array}{cc}Y=\left\{\begin{array}{cc}1& (V\&le;80+160-2\&times;D);\\ 0& (V>80+160-2\&times;D);\end{array}\right.& Y=\left\{\begin{array}{cc}1& (V\&le;60+340-4\&times;D);\\ 0& (V>60+340-4\&times;D);\end{array}\right.\end{array}$

85<D≤90；

$Y=\left\{\begin{array}{cc}1& (V\&le;35+450-5\&times;D);\\ 0& (V>35+450-5\&times;D);\end{array}\right.$

90<D；

$Y=\left\{\begin{array}{cc}1& (V\&le;30);\\ 0& (V>30);\end{array}\right.$

The utility model is mainly said system structure and provides an integrated measuring equipment, namely, by LED light source module, the integrated one that are arranged at such as spectral detection module and fruit footpath on-line measurement module, as shown in Figure 4, utilize body frame 7, body frame 7 arranges longitudinal leading screw 2, the bottom of leading screw 2 is provided with stroke-limit sensor 8, leading screw 2 is provided with the slide unit 3 connecting stepper motor 1, slide unit 3 connects apple supporting seat 4, the photodiode of spectral detection module is installed as shown in Figure 5 in the center of apple supporting seat 4, the periphery of apple supporting seat 4 is provided with sealing light screening material 10.It is the LED light source 6 in LED light source module directly over apple supporting seat 4, LED light source 6 is planar array structure, its outer switching mode infrared emission pipe 5 being provided with fruit footpath on-line measurement module, and the fixed distance 4mm parallel with the array plane of LED light source 6 to ray of switching mode infrared emission pipe 5, switching mode infrared emission pipe 5 is 120mm with the vertical distance H of stroke-limit sensor 8.

Control slide unit 3 back and forth movement in vertical direction, the initial position of each motion is stroke-limit sensor 8 place, be H with the vertical distance of switching mode infrared emission pipe 5, after apple supporting seat 4 places apple to be measured, slide unit 3 starts to move upward, the apple to be measured on apple supporting seat 4 is driven to move upward, cut off after infrared emission line until apple upper surface and stop, if now the position of slide unit 3 be final position and vertical motion distance for L, then Apples footpath account form is D=(H-L).

Utility model works flow process as shown in Figure 7, first the diameter of apple to be measured is measured, device specifically by Fig. 4 completes, then its transmitted light spectrum is obtained, specifically also complete by the device of Fig. 4, namely, after completing diameter measurement, output pwm signal setting output current, adjustment array of source output intensity, after light source stable output, controls spectral intensity detection module and obtains transmission value, the fruit footpath obtained value substitutes in discrimination model with transmitted intensity values by last processor, and display exports result of determination.

Claims (5)

1. automatically detect the DATA REASONING equipment of the device of Apple Mould Core, comprise the body frame (7) longitudinally arranged, it is characterized in that, body frame (7) is provided with longitudinal leading screw (2), the bottom of leading screw (2) is provided with stroke-limit sensor (8), leading screw (2) is provided with slide unit (3), stepper motor (1) connects slide unit (3) and drives it in the upper motion of leading screw (2), slide unit (3) is upper connects apple supporting seat (4), be LED light source (6) directly over apple supporting seat (4), LED light source (6) is planar array structure, outside it, switching mode infrared emission pipe (5) is installed, switching mode infrared emission pipe (5) parallel with the array plane of LED light source (6) to ray, slide unit (3) drives the apple to be measured on apple supporting seat (4) to move upward, to being stopped by during apple stop to be measured ray of switching mode infrared emission pipe (5), the diameter of apple to be measured is obtained according to move distance, the center of described apple supporting seat (4) is provided with photodiode (9), described photodiode (9) is as electrooptical device, be connected with amplifier chip OP07, receive the light transmitted through apple to be measured and be converted into voltage signal.

2. utilize the device of the automatic detection Apple Mould Core of DATA REASONING equipment described in claim 1, it is characterized in that, comprise the processor of built-in judgment models, diameter and the voltage signal of described apple to be measured are all connected to processor, judge whether apple to be measured has mould worry according to diameter and voltage signal.

3. automatically detect Apple Mould Core device according to claim 2, it is characterized in that, described stroke-limit sensor (8) is H with the vertical distance of switching mode infrared emission pipe (5), described stepper motor (1) is connected with described processor, when being stopped by apple to be measured ray of switching mode infrared emission pipe (5), the vertical motion distance L of slide unit (3) is obtained, then the diameter D=(H-L) of apple to be measured according to the revolution of stepper motor (1) and rotating speed.

4. automatically detect the device of Apple Mould Core according to claim 2, it is characterized in that, the negative electrode of described photodiode (9) is connected with one end of resistance R2 and electric capacity C4, another termination VCC of resistance R2, the other end ground connection of electric capacity C4, resistance R2 and electric capacity C4 forms RC low-pass filter, eliminate the high frequency noise that VCC brings, the anode of photodiode PD is connected with one end of resistance R3 and resistance R5, the other end ground connection of resistance R3, one end of the other end connecting resistance R4 of resistance R5 and the positive input of amplifier chip OP07, the other end ground connection of resistance R4, the reverse input end of amplifier chip OP07 is by resistance R1 ground connection, the output terminal of amplifier chip OP07 is by resistance R6 ground connection and output terminal is connected to filter capacitor C3, the output terminal of amplifier chip OP07 is connected with processor, to its output voltage signal.

5. automatically detect the device of Apple Mould Core according to claim 2, it is characterized in that, described LED light source (6) adopts centre wavelength to be 710nm, half band-width is the LED of 25nm, the PT4115 chip adopting output current adjustable is as driving chip, processor is connected with driving chip, is regulated the output current of driving chip by the pwm signal exporting different duty, thus realizes the stable quantitatively adjustment of LED light source (6) luminous intensity.