阅读说明：本技术 碾米质量控制设备、方法以及智能碾米系统 (Rice milling quality control equipment and method and intelligent rice milling system ) 是由 李诗龙 唐红旗 裴后昌 于 2020-05-18 设计创作，主要内容包括：本发明公开一种碾米质量控制设备、方法以及智能碾米系统,所述碾米质量控制设备包括门体组件、采样装置、米样分散装置、图像采集装置以及控制装置,门体组件盖设于碾米机的出米嘴,以调节出米嘴受到的压力,采样装置与出米嘴连接设置,以获取出米嘴流出大米的采样米粒,米样分散装置使采样米粒呈单颗粒离散状排布,图像采集装置用以拍摄得到采样米粒的采样图像,控制装置用于接收并处理采样图像,以对应控制驱动装置工作。所述方法应用于所述碾米质量控制设备,所述智能碾米系统包括碾米机和所述碾米质量控制设备。本发明实现从出米嘴取样、对采样米粒进行质量评价到调整碾米机的闭环控制,自动化程度高,使碾米机能产出碾磨精度更高的大米。(The invention discloses rice milling quality control equipment, a method and an intelligent rice milling system, wherein the rice milling quality control equipment comprises a door body assembly, a sampling device, a rice sample dispersing device, an image acquisition device and a control device, the door body assembly covers a rice outlet nozzle of a rice mill to adjust the pressure applied on the rice outlet nozzle, the sampling device is connected with the rice outlet nozzle to acquire sampling rice grains flowing out of the rice outlet nozzle, the rice sample dispersing device enables the sampling rice grains to be distributed in a single-grain dispersed shape, the image acquisition device is used for shooting a sampling image of the sampling rice grains, and the control device is used for receiving and processing the sampling image to correspondingly control a driving device to work. The method is applied to the rice milling quality control equipment, and the intelligent rice milling system comprises a rice mill and the rice milling quality control equipment. The invention realizes the closed-loop control from the sampling of the rice outlet nozzle, the quality evaluation of the sampled rice grains to the adjustment of the rice mill, has high automation degree and ensures that the rice mill can produce rice with higher grinding precision.)

1. The utility model provides a rice milling quality control equipment, is applied to the rice mill, its characterized in that, rice milling quality control equipment includes:

the door body assembly comprises a door body and a driving device, the door body covers the rice outlet nozzle of the rice mill, and the driving device drives the door body to press the pressing degree of the rice outlet nozzle so as to adjust the pressure applied to the rice outlet nozzle;

the sampling device is connected with the rice outlet nozzle to obtain sampled rice grains of rice flowing out of the rice outlet nozzle of the rice mill;

the rice sample dispersing device is provided with a measuring station and is used for dispersing the sampling rice grains output by the sampling device so as to enable the sampling rice grains to be distributed in a single-particle dispersed manner at the measuring station;

the image acquisition device is used for shooting a sampling image of the sampling rice grains at the measuring station; and the number of the first and second groups,

and the control device is electrically connected with the image acquisition device and the driving device and is used for receiving and processing the sampling image so as to correspondingly control the driving device to work.

2. A rice milling quality control apparatus as claimed in claim 1, wherein said sampling means includes:

the flow guide groove is connected with the rice outlet;

the outer sleeve is arranged on the flow guide groove, and the outer sample inlet is communicated with the flow guide groove and arranged in a flow direction towards the flow guide groove to flow the rice;

the inner sleeve is rotatably arranged in the outer sleeve in a penetrating way and is provided with a first position enabling the inner sample inlet to be communicated with the outer sample inlet and a second position enabling the inner sample outlet to be communicated with the outer sample outlet; and the number of the first and second groups,

a rotary drive device which is connected with the inner sleeve in a driving way so as to switch the inner sleeve between the first position and the second position.

3. The rice milling quality control apparatus as claimed in claim 2, wherein said outer sleeve is mounted to said guide groove in a gradually downwardly inclined arrangement in a direction from said outer inlet toward said outer outlet.

4. The rice milling quality control device as claimed in claim 3, wherein a flow guide nozzle is protruded downwards from the outer sleeve pipe corresponding to the outlet sample outlet, and an inner cavity of the flow guide nozzle is gradually reduced from top to bottom.

5. A rice milling quality control apparatus as claimed in claim 1, wherein said rice sample dispersing means comprises:

the storage hopper is used for connecting an output port of the sampling device;

the first conveying belt and the second conveying belt are connected, the first conveying belt is installed below the discharge end of the storage hopper and used for conveying the sampling rice grains falling from the discharge end of the storage hopper to the second conveying belt, and the surface of the second conveying belt is used for forming the measuring station; and the number of the first and second groups,

the grain of rice brush is located the junction of first conveyer belt with the second conveyer belt, is used for dialling the brush the sampling grain of rice to make the sampling grain of rice be single granule straggly and get into the second conveyer belt.

6. A rice milling quality control apparatus as claimed in claim 1, wherein said drive means includes:

the seat body is fixedly arranged on the rice outlet nozzle and used for installing the door body, and an installation cavity is arranged in the seat body;

the elastic telescopic mechanism is arranged in the mounting cavity, and one end of the elastic telescopic mechanism is connected with the door body and is used for moving in the direction close to and far away from the rice outlet; and the number of the first and second groups,

and the motor is arranged on the base body, is in driving connection with the elastic telescopic mechanism and is used for controlling the elastic telescopic mechanism to move so as to adjust the pressure of the rice outlet nozzle.

7. A rice milling quality control apparatus as claimed in claim 5, wherein said elastic expansion mechanism comprises:

one end of the connecting rod extends out of the mounting cavity and is used for connecting the door body;

the screw sleeve is provided with a screw hole in a penetrating way;

the two ends of the spring are respectively connected with the threaded sleeve and the connecting rod;

the screw rod is rotatably inserted into the screw hole and is matched with the screw sleeve, and one end of the screw rod is connected with the motor and is driven by the motor to rotate.

8. The utility model provides an intelligence rice milling system which characterized in that includes:

a rice mill; and the number of the first and second groups,

rice milling quality control apparatus as claimed in any one of claims 1 to 7, which is mounted to the rice mill.

9. A rice milling quality control method applied to the rice milling quality control apparatus according to any one of claims 1 to 7, comprising the steps of:

acquiring a sampling image of the sampling rice grains based on the sampling rice grains acquired by the rice milling quality control equipment from a rice outlet nozzle of the rice mill;

acquiring quality characteristic information of the sampling rice grains according to the sampling images of the sampling rice grains;

establishing a fuzzy inference system, wherein the input quantity of the fuzzy inference system comprises the quality characteristic information of the sampled rice grains, and the output quantity comprises the pressure control quantity of a rice outlet nozzle of the rice mill;

and calculating and generating an execution command of the pressure control quantity according to the reasoning rule of the fuzzy reasoning system, and controlling a driving device of the quality control equipment to control the pressure of the rice outlet nozzle of the rice mill.

10. A rice milling quality control method as claimed in claim 9, wherein the quality characteristic information of the sampled rice grains includes but is not limited to the degree of whiteness and breakage rate of the sampled rice grains; and/or the presence of a gas in the gas,

in the fuzzy inference system, 5 homonymous membership functions of very low, medium, high and very high are adopted for grading the quality characteristic variable and the pressure control variable of the sampling rice grains, and fuzzy operation and inference are carried out according to the 5 homonymous membership functions.

Technical Field

The invention relates to the technical field of food machinery, in particular to rice milling quality control equipment and method and an intelligent rice milling system.

Background

The rice is a finished product prepared by processing the rice through the working procedures of cleaning, hulling, grinding, polishing and the like. The rice is often damaged by mechanical equipment in the processing process, so that broken rice is generated, and the value of the broken rice is only about 50% of the whole rice, so that the processing quality of the rice is extremely important to improve. In the processing procedure of removing the bran powder layer on the skin of rice grains, milling by a rice mill is required, and the rice grains are inevitably subjected to strong milling force and stress of a milling roller, so that the rice is broken more frequently than other devices. In the existing rice mill, the grinding effect of the rice mill needs to be checked once by professional manpower every 1-2 hours, usually, a hand is put into a diversion trench of a rice outlet nozzle of the rice mill for sampling, then quality indexes such as the degree of grinding, the rate of broken rice, the grinding precision and the like of a rice sample are analyzed and judged, and finally, the rice mill is properly adjusted according to the grinding process requirement.

Therefore, in the existing milling process of the rice mill, an operator is required to accurately adjust and operate the rice milling equipment so as to ensure the quality and yield of finished rice. How to reduce the time of operation adjustment, overcome the interference of human factor, the precision of milling of accurate control rice is a problem that awaits the solution urgently.

Disclosure of Invention

The invention mainly aims to provide rice milling quality control equipment, a rice milling quality control method and an intelligent rice milling system, and aims to solve the problems that the conventional rice milling machine milling process needs to reduce the time of operation adjustment and overcome the interference of human factors so as to reduce the broken rice rate and accurately control the milling precision of rice.

In order to achieve the above object, the present invention provides a rice milling quality control apparatus applied to a rice mill, the rice milling quality control apparatus comprising:

the door body assembly comprises a door body and a driving device, the door body covers the rice outlet nozzle of the rice mill, and the driving device drives the door body to press the pressing degree of the rice outlet nozzle so as to adjust the pressure applied to the rice outlet nozzle;

the sampling device is connected with the rice outlet nozzle to obtain sampled rice grains of rice flowing out of the rice outlet nozzle of the rice mill;

the rice sample dispersing device is provided with a measuring station and is used for dispersing the sampling rice grains output by the sampling device so as to enable the sampling rice grains to be distributed in a single-particle dispersed manner at the measuring station;

the image acquisition device is used for shooting a sampling image of the sampling rice grains at the measuring station; and the number of the first and second groups,

and the control device is electrically connected with the image acquisition device and the driving device and is used for receiving and processing the sampling image so as to correspondingly control the driving device to work.

Optionally, the sampling device comprises:

the flow guide groove is connected with the rice outlet;

the outer sleeve is arranged on the flow guide groove, and the outer sample inlet is communicated with the flow guide groove and arranged in a flow direction towards the flow guide groove to flow the rice;

the inner sleeve is rotatably arranged in the outer sleeve in a penetrating way and is provided with a first position enabling the inner sample inlet to be communicated with the outer sample inlet and a second position enabling the inner sample outlet to be communicated with the outer sample outlet; and the number of the first and second groups,

a rotary drive device which is connected with the inner sleeve in a driving way so as to switch the inner sleeve between the first position and the second position.

Optionally, in a direction in which the outer sample inlet faces the outer sample outlet, the outer sleeve is installed in the diversion trench in a gradually downward inclined manner.

Optionally, the outer tube corresponds go out appearance mouth department and protruding be equipped with the water conservancy diversion mouth downwards the inner chamber of water conservancy diversion mouth is from last to being the convergent setting down.

Optionally, the rice-like dispersion apparatus comprises:

the storage hopper is used for connecting an output port of the sampling device;

the first conveying belt and the second conveying belt are connected, the first conveying belt is installed below the discharge end of the storage hopper and used for conveying the sampling rice grains falling from the discharge end of the storage hopper to the second conveying belt, and the surface of the second conveying belt is used for forming the measuring station; and the number of the first and second groups,

the grain of rice brush is located the junction of first conveyer belt with the second conveyer belt, is used for dialling the brush the sampling grain of rice to make the sampling grain of rice be single granule straggly and get into the second conveyer belt.

Optionally, the drive device comprises:

the seat body is fixedly arranged on the rice outlet nozzle and used for installing the door body, and an installation cavity is arranged in the seat body;

the elastic telescopic mechanism is arranged in the mounting cavity, and one end of the elastic telescopic mechanism is connected with the door body and is used for moving in the direction close to and far away from the rice outlet; and the number of the first and second groups,

and the motor is arranged on the base body, is in driving connection with the elastic telescopic mechanism and is used for controlling the elastic telescopic mechanism to move so as to adjust the pressure of the rice outlet nozzle.

Optionally, the elastic telescopic mechanism comprises:

one end of the connecting rod extends out of the mounting cavity and is used for connecting the door body;

the screw sleeve is provided with a screw hole in a penetrating way;

the two ends of the spring are respectively connected with the threaded sleeve and the connecting rod;

the screw rod is rotatably inserted into the screw hole and is matched with the screw sleeve, and one end of the screw rod is connected with the motor and is driven by the motor to rotate.

In addition, the invention also provides an intelligent rice milling system, which comprises:

a rice mill; and the number of the first and second groups,

the rice milling quality control device is arranged on the rice mill.

In addition, the invention also provides a rice milling quality control method which is applied to the rice milling quality control equipment, and the method comprises the following steps:

acquiring a sampling image of the sampling rice grains based on the sampling rice grains acquired by the rice milling quality control equipment from a rice outlet nozzle of the rice mill;

acquiring quality characteristic information of the sampling rice grains according to the sampling images of the sampling rice grains;

establishing a fuzzy inference system, wherein the input quantity of the fuzzy inference system comprises the quality characteristic information of the sampled rice grains, and the output quantity comprises the pressure control quantity of a rice outlet nozzle of the rice mill;

and calculating and generating an execution command of the pressure control quantity according to the reasoning rule of the fuzzy reasoning system, and controlling a driving device of the quality control equipment to control the pressure of the rice outlet nozzle of the rice mill.

Optionally, the quality characteristic information of the sampled rice grains includes, but is not limited to, whiteness and breakage rate of the sampled rice grains; and/or the presence of a gas in the gas,

in the fuzzy inference system, 5 homonymous membership functions of very low, medium, high and very high are adopted for grading the quality characteristic variable and the pressure control variable of the sampling rice grains, and fuzzy operation and inference are carried out according to the 5 homonymous membership functions.

In the technical scheme of the invention, the rice milling quality control equipment can realize closed-loop control from sampling at the rice outlet nozzle, quality evaluation of sampled rice grains to adjustment of the rice mill, has high automation degree, does not have interference of human factors, and has very accurate adjustment of the rice mill, thereby leading the rice mill to produce rice with higher milling precision. According to the invention, different types of green nutritional foods such as brown rice, germ-remaining rice and the like can be produced by adjusting the pressure of the rice outlet nozzle to different degrees, in the rice processing process, a plurality of rice mills can be arranged to form a rice mill unit, and the rice mills in the rice mill unit are controlled to carry out multistage grading light milling, so that the milling degree of each rice mill can meet the technological requirements, and thus the rice can reach the hands of users in a way of best nutrition preservation, and the user experience can be greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of rice milling quality control equipment provided by the invention;

FIG. 2 is a schematic view of the inner cannula of the sampling device of FIG. 1 in a first position;

FIG. 3 is a schematic view of the inner cannula of the sampling device of FIG. 1 in a second position;

FIG. 4 is a schematic structural view of the door body assembly of FIG. 1;

FIG. 5 is a schematic diagram of a sample image taken by the image acquisition device of FIG. 1;

fig. 6 is a schematic flow chart of a specific embodiment of the rice milling quality control method provided by the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

To solve the above problems, the present invention provides a rice milling quality control apparatus applied to a rice mill, please refer to fig. 1-5, the rice milling quality control apparatus includes a door assembly, a sampling device 2, a rice sample dispersing device, an image collecting device and a control device, the door assembly includes a door 11 and a driving device 12, the door 11 covers a rice outlet 102 of the rice mill, the driving device 12 drives the door 11 to press the rice outlet 102 to adjust the pressure applied to the rice outlet 102, the sampling device 2 is connected to the rice outlet 102 to obtain a sampling rice grain 200 of the rice flowing out from the rice outlet 102 of the rice mill, the rice sample dispersing device has a measuring station, the rice sample dispersing device is used for dispersing the sampling rice grains 200 output from the sampling device 2 to make the sampling rice grains 200 arranged in a single-grain dispersed manner at the measuring station, the image collecting device is used for shooting a sampling image 300 of the sampling rice 200 at the measuring station, the control device is electrically connected to the image acquisition device and the driving device 12, and is configured to receive and process the sampling image 300 to correspondingly control the driving device 12 to operate.

The rice milling quality control equipment can realize closed-loop control from sampling at the rice outlet nozzle 102, quality evaluation of sampled rice grains 200 to adjustment of the rice mill. The invention has high automation degree, no interference of human factors and very accurate adjustment of the rice mill, thereby improving the whole rice yield of the rice mill and producing rice with higher grinding precision.

Referring to fig. 1, rice is introduced into a rice milling chamber of a rice milling machine from a feeding port 101 of the rice milling machine and then discharged from a rice discharging nozzle 102 through milling, and the driving device 12 of the present invention is used to adjust the pressure of the rice discharging nozzle 102 of the rice milling machine in one of ways of adjusting the internal pressure of the rice milling chamber, so that it is possible to apply the driving device 12 to other devices for adjusting the internal pressure of the rice milling chamber.

Further, the driving device 12 in the embodiment of the present invention can reduce broken rice by adjusting the pressure of the rice outlet 102 to different degrees, and produce different types of green nutritious foods such as brown rice, germ rice, and germ-remaining rice, or in the rice processing process, a plurality of rice mills are arranged to form a rice mill set, and the rice mills in the rice mill set are controlled to perform multistage grading light milling, so that the milling degree of each rice mill can meet the process requirements, and thus, the rice can reach the hands of users in a way of best nutrition preservation, and user experience can be greatly improved.

Further, please refer to fig. 2-3, the sampling device 2 includes a guiding gutter 21, an outer casing 22, an inner casing 23 and a rotation driving device 24, the guiding gutter 21 is connected to the rice outlet 102, two ends of the outer casing 22 are respectively provided with an outer sample inlet 221 and an outer sample outlet 222, the outer casing 22 is installed in the guiding gutter 21, the outer sample inlet 221 is used for communicating with the guiding gutter 21 and is arranged in a flow direction of flowing rice toward the guiding gutter 21, two ends of the inner casing 23 are respectively provided with an inner sample inlet 231 and an inner sample outlet 232, the inner casing 23 is rotatably disposed in the outer casing 22 and has a first position where the inner sample inlet 231 communicates with the outer sample inlet 221 and a second position where the inner sample outlet 232 communicates with the outer sample outlet 222, and the rotation driving device 24 is connected to the inner casing 23 so that the inner casing 23 is switched between the first position and the second position.

In this embodiment, when interior sleeve pipe 23 is in the first position, interior introduction port 231 communicates outer introduction port 221, and the grain of rice enters into interior sleeve pipe 23, and interior introduction port 232 and outer introduction port 222 do not communicate simultaneously, make things convenient for sampling device 2 to collect sufficient sampling grain of rice 200, and when interior sleeve pipe 23 was in the second position, interior introduction port 232 communicated outer introduction port 222, and interior introduction port 231 and outer introduction port 221 do not communicate simultaneously, make things convenient for sampling device 2 will the whole outputs of sampling grain of rice 200. The sampling device 2 of the present embodiment does not affect the flow of rice grains in the diversion trench 21, and the rotary drive device 24 is controlled to rotate the inner sleeve 23 when sampling is required.

Further, the outer sleeve 22 is installed in the guiding groove 21 in a direction from the outer sample inlet 221 to the outer sample outlet 222, and is gradually inclined downward, so as to accelerate the flow of the sampling rice grains 200 in the inner sleeve 23.

Referring to fig. 2-3, the outer sleeve 22 is provided with a flow guiding nozzle 25 protruding downward corresponding to the outer sample outlet 222, the inner cavity of the flow guiding nozzle 25 is gradually reduced from top to bottom, and the inner sample outlet 232 and the outer sample outlet 222 are larger.

In this embodiment, the rice sample dispersing device includes the storage hopper 31, first conveyer belt 32 and second conveyer belt 33 and rice grain brush 34, the storage hopper 31 is used for connecting the delivery outlet of sampling device 2, first conveyer belt 32 is connected the setting with second conveyer belt 33, first conveyer belt 32 is installed in the below of storage hopper 31 discharge end, be used for carrying the sampling rice grain 200 that the storage hopper 31 discharge end dropped to second conveyer belt 33, wherein, the area of second conveyer belt 33 is used for forming the measurement station, rice grain brush 34 is located the junction of first conveyer belt 32 and second conveyer belt 33, be used for stirring and brushing sampling rice grain 200, so that sampling rice grain 200 is the second conveyer belt 33 that gets into with the single particle form of scattering. Through the transport of first conveyer belt 32 and second conveyer belt 33, avoid sampling rice grain 200 to form in storage hopper 31 and first conveyer belt 32 and pile up, the rice grain brush 34 of also being convenient for simultaneously is separated sampling rice grain 200. In this embodiment, the second conveyor belt 33 is located below the first conveyor belt 32, and the separated sampling rice grains 200 fall into the belt surface of the second conveyor belt 33 under the action of gravity, so that the separated sampling rice grains 200 are in an irregular single-particle dispersion shape.

Further, the output end of the second conveying belt 33 is provided with a recycling device, so that the sampling rice grains 200 can return to the rice grain flow produced by the rice mill 100, thereby avoiding waste, and the recycling device is a recycling hopper 35 in the embodiment.

Further, in this embodiment, the image capturing device includes two cameras 41 and an image capturing card 42, the shooting angles of the two cameras 41 are different, so that the sampled image 300 can more accurately reflect the real shape of the sampled rice grain 200, an imaging chamber 43 for shooting is further provided in this embodiment, the second conveyor belt 33, the two cameras 41 and the image capturing card 42 are installed in the imaging chamber 43, wherein the two cameras 41 are placed about 10-15cm above the second conveyor belt 33, and after the image is captured, the image is digitized by a frame grabber and then transmitted to an image processing algorithm for further analysis. The control device in this embodiment comprises a computer terminal 51 and a controller 52, wherein the computer terminal 51 is used for executing an image processing algorithm, calculates an instruction for controlling the driving device 12, and then the controller 52 controls the driving device 12 according to the instruction to adjust the pressure of the rice outlet 102.

Referring to fig. 4, in the present embodiment, the driving device 12 includes a base 121, an elastic expansion mechanism and a motor 126, the base 121 is fixedly mounted on the rice outlet 102 for mounting the door 121, the base 121 has a mounting cavity therein, the elastic expansion mechanism is mounted in the mounting cavity, one end of the elastic expansion mechanism is connected to the door 11 for moving in a direction close to and away from the rice outlet 102, the motor 126 is mounted on the base 121 and is drivingly connected to the elastic expansion mechanism for controlling the movement of the elastic expansion mechanism to adjust the pressure of the rice outlet 102, and the motor 126 in the present embodiment is a stepping motor.

Further, the elastic telescopic mechanism comprises a connecting rod 122, a threaded sleeve 123, a spring 124 and a screw rod 125, wherein one end of the connecting rod 122 extends out of the installation cavity and is used for being connected with the door body 11, a spherical hinge 127 is arranged between the connecting rod 122 and the door body 11 to enable the connecting rod 122 and the door body 11 to be movably connected, a screw hole is formed in the threaded sleeve 123 in a penetrating mode, two ends of the spring 124 are respectively connected with the threaded sleeve 123 and the connecting rod 122, the screw rod 125 is rotatably inserted into the screw hole and is used for being matched with the threaded sleeve 123, and one end of the screw rod 125 is connected with a motor 126 and is used for being.

In addition, the invention also provides an intelligent rice milling system, which comprises a rice mill and the rice milling quality control equipment, wherein the rice milling quality control equipment is arranged on the rice mill, and the intelligent rice milling system realizes closed-loop control from sampling at the rice outlet nozzle 102, quality evaluation of sampled rice grains 200 to adjustment of the rice mill, so that the rice mill can produce rice with higher milling precision.

The present invention also provides a rice milling quality control method, which is applied to the rice milling quality control apparatus of the present invention, please refer to fig. 1 and fig. 6, and the method comprises the following steps:

s100: acquiring a sampling image of the sampled rice grains based on the sampled rice grains acquired from a rice outlet nozzle of the rice mill by rice milling quality control equipment;

s200: acquiring quality characteristic information of the sampled rice grains according to the sampled images of the sampled rice grains;

s300: establishing a fuzzy inference system, wherein the input quantity of the fuzzy inference system comprises quality characteristic information of sampled rice grains, and the output quantity comprises the pressure control quantity of a rice outlet nozzle of a rice mill;

s400: according to the inference rule of the fuzzy inference system, an execution command of the generated pressure control quantity is calculated, and a driving device of the quality control equipment is controlled to control the pressure of a rice outlet nozzle of the rice mill.

The rice milling quality control method can realize closed-loop control from sampling at the rice outlet nozzle, quality evaluation of sampled rice grains to adjustment of the rice mill, and further enables the rice mill to produce rice with higher milling precision.

The invention adopts a fuzzy logic method and simulates the mode of manually adjusting the rice mill based on the decision of product quality evaluation. The fuzzy inference system is designed by adopting a fuzzy tool box of LabVIEW software.

The method can also carry out milling processing on the rice to different degrees by changing the input quality characteristic options to produce green nutritional foods such as brown rice, germ-remaining rice and the like.

Further, after a sampling image is obtained, preprocessing is carried out on the sampling image, influences such as image distortion are ignored, the sampling image is converted into a gray level image to carry out intensity analysis, rice grains are distinguished from the background according to a preset intensity factor threshold, and finally a bwleael function is used for identifying each rice grain. In the rice milling quality control method, the quality characteristic information of the sampled rice grains includes, but is not limited to, the degree of rolling and the breakage rate of the sampled rice grains, wherein the degree of rolling is obtained by calculating the average value of the gray intensity of the rice grains in the sampled image, and the breakage rate is obtained by calculating the percentage of the broken rice grains to the total number of the sampled rice grains.

The product quality of rice is characterized by a plurality of characteristics, which can be analyzed and judged from the shape, size and color, and can be comprehensively analyzed by combining the total particle number of the sampled rice grains, for example, the brown rice and the rice with different precisions are distinguished according to the color of the surface of the rice grains, the lower the grinding precision is, the deeper the color of the surface of the rice grains is, the different grinding precisions are, the different nutritional values of the rice grains are, and based on the requirements of users on the nutritional values of the rice grains, the rice mill needs to have the capability of processing the rice grains with different grinding precisions. The rice sample dispersing device is arranged in the rice mill, so that the subsequent analysis and judgment are facilitated after the sampled rice grains are dispersed, and the grinding precision of the rice mill is accurately controlled.

In addition, in the fuzzy inference system, 5 homonymous membership functions of Very Low (VL), low (L), medium (M), high (H) and Very High (VH) are adopted for the quality characteristic variable and the pressure control variable of the sampled rice grains, fuzzy operation and inference are carried out according to the 5 homonymous membership functions, and the range and the interval of each membership function can be determined according to different raw grain variety characteristics and the technical parameters of the rice mill to carry out fuzzy inference operation. An inference rule for performing a fuzzy inference to obtain an execution command of the pressure control amount according to the whiteness degree and the breakage rate is shown in table 1.

TABLE 1

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.