KR100778714B1 - Method for controlling transfer amount of grain - Google Patents

Abstract

A method for controlling the transfer amount of grains automatically is provided to control a feeder correspondent to a value set by a user by calculating the demanded control amount and present control amount for each feeder in comparison to the transfer amount of the grains transmitted from a present photographing unit and executing numerical analysis. A method for controlling the transfer amount of grains automatically comprises the steps of: setting a reference value determining the transfer amount of grains delivered through a feeder(S1); obtaining an image of pixel unit by taking a picture of the grains falling to a supply chute, in a photographing unit(S2); counting the number of pixels of each line from the obtained grain image and inputting data for the grain image by dividing the data for each ejector(S3); checking the amount of the falling grains for each feeder by summing up data for each ejector for N-seconds when the grain image data starts to be input(S4); feeding data back to a data input step if the time for adding up the data for each ejector is shorter than N-seconds and calculating the demanded control amount and present control amount for each feeder if over N-seconds(S5); numerically comparing the demanded control amount and present control amount for each feeder(S6); computing a final control data value through numerical analysis(S7); and comparing the final control data value output by numerical analysis and a reference value set by a user, increasing the vibration degree of the correspondent feeder if the final control data value is lower than the reference value, decreasing the vibration degree of the correspondent feeder if the final control data value is higher than the reference value, and feeding data back to the data input step if the final control data value and the reference value are same(S8).

Description

How to automatically adjust the amount of grain transfer {METHOD FOR CONTROLLING TRANSFER AMOUNT OF GRAIN}

The present invention relates to a method for controlling the transport amount of grain when sorting grains such as rice or wheat or soybeans, and more specifically, to automatically adjust the transport amount of the grain for each feeder for transporting the grain, the current shooting The present invention relates to a method of automatically adjusting a feed amount of grain, which automatically controls the feeder so that the amount of grain sent from the department can be quickly approached by a user, and improves the processing efficiency according to the amount of grain fed.

In general, grains such as rice, brown rice, wheat, soybeans, millet, etc. are in the form of granules. After harvesting the grains, it is necessary to carry out the process of sorting them into good and defective products to promote commercialization or to determine the value of the products. Grain sorting equipment is widely used for workability and efficiency of sorting process.

Looking at the conventional grain sorting apparatus used for the sorting of grains, when grains are introduced into the hopper installed inside the main body, a plurality of them are introduced into the chute installed through the feeder of the diaphragm and the groove of the feed chute. Is configured to descend through.

At this time, the grain of the falling grain is photographed by the photographing unit to discriminate between good and defective products, and the grain of grain determined as defective is blown out by the operation of an ejector having an air nozzle installed at the end of the supply chute. By doing so, it is configured to separate and lower the grains discriminated poorly.

However, according to the conventional grain sorting apparatus as described above and the method of adjusting the amount of grain applied thereto, there is a problem that it is not easy to adjust the amount of grain for each feeder, and simply increase or decrease the frequency of each feeder to adjust the amount of grain. Only way to apply was.

An object of the present invention is to provide a method for automatically adjusting the amount of grain transported by comparing the current falling amount of grain sent from the photographing unit with a reference value set by the user to automatically adjust the amount of grain for each feeder.

That is, the present invention obtains the software value and the hardware value, compares them, and compares the data value calculated by numerical analysis and the user-set value again, and the amount of grain transported by the current photographing unit is set by the user. It provides automatic control of feeder for fast access to the feeder, improves the processing efficiency according to the control of grain feed rate, and provides automatic control of grain feed amount to increase productivity.

The present invention provides a plurality of feeders for transporting grains by vibration shaking, a supply chute installed at an end of each feeder inclined, a photographing unit for photographing grains descending through the grooves of the supply chute, and the supply chute. A grain sorting apparatus comprising a groove formed and an ejector installed in a corresponding number, the grain sorting apparatus comprising the steps of: setting a reference value to determine the amount of grain to be conveyed through the feeder; Photographing grains falling onto a supply chute in the photographing unit to obtain an image of a pixel unit; Counting the number of pixels filled in the pixels of each line from the grain image obtained in the above step, but dividing the data by the ejectors and inputting data on the grain image; When the image data of the grain by the number of pixels starts to be input, accumulating and accumulating the data for each ejector for N seconds to determine how much the grain falls for each feeder;

If the time of adding and accumulating the data for each ejector is less than the N seconds, feeding back to the data input step, and if the time is larger than the N seconds, obtaining a required control amount and a current control amount for each feeder; Numerically comparing the required control amount for each feeder and the current control amount for each feeder obtained in the above step; Calculating a final control data value by performing numerical analysis according to a comparison between the required control amount for each feeder and a current control amount; Compare the final control data value by the numerical analysis with the reference value set by the user and if the final control data value is less than the reference value, the vibration amount of the feeder is increased, and if the final control data value is greater than the reference value, the vibration amount of the feeder It is characterized in that it comprises a step of feeding back to the data input step if both are the same.

The present invention obtains the required control amount and the current control amount for each feeder in preparation for the amount of grain transported from the current photographing unit, and automatically controls the feeder so that the user can quickly access the value set by the user through numerical analysis. It is possible to easily adjust the amount of feed can be easily carried out and increase the processing efficiency accordingly, it can not only control the shaking of each feeder constantly, but also provide a useful effect to increase the productivity according to grain selection.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a flowchart illustrating a method for automatically adjusting the transport amount of grains according to the present invention, and FIG. 2 is a schematic main configuration diagram of a grain sorting apparatus used in the present invention.

As shown in Figures 1 and 2, the method for automatically adjusting the amount of grain transfer according to the present invention transfers the grains fed into the apparatus through the hopper to the vibration of the vibration and is provided with a plurality of partitioned feeder 10, and provided with a plurality of Through the supply chute 20 and the groove 21 of the supply chute 20 is installed inclined in a number corresponding to the end of each feeder 10 is a flow passage for sorting the grains transported by each feeder In the grain sorting device comprising a photographing unit 30 for photographing the falling grain, and the ejector 40 installed in the corresponding number and the groove 21 formed in the supply chute 20,

Setting a reference value by the user to determine how much the amount of grain falling onto the feed chute 20 through the respective feeders 10 and inputting it to the photographing unit 30 (S1); Photographing grains falling onto the supply chute 20 by the photographing unit 30 to obtain an image of a pixel unit (S2); Counting the number of pixels filled in the pixels of each line from the image obtained in the step S2, but separating data for each ejector and inputting data for the grain image (S3); When the image data of the grain by the number of pixels starts to be input, accumulating and accumulating the data for each ejector for N seconds to determine how much the amount of grain falls for each feeder (S4); If the cumulative accumulation time of the ejector-specific data is less than the N seconds, feeding back to the data input step (S3), and if greater than the N seconds, obtaining the required control amount and the current control amount for each feeder (S5); Numerically comparing the required control amount for each feeder and the current control amount for each feeder obtained in the step S5; Calculating a final control data value by performing numerical analysis according to a comparison between the required control amount for each feeder and the current control amount; Compare the final control data value by the numerical analysis with the reference value set by the user and if the final control data value is less than the reference value, the vibration amount of the feeder is increased, and if the final control data value is greater than the reference value, the vibration amount of the feeder It is reduced to, and if both are the same comprises the step (S8) of feeding back to the data input step (S3).

Here, the photographing unit 30 is composed of a line CCD camera having a plurality of sensors, and is installed to photograph a plurality of lines such as 32 lines or 64 lines of the supply chute 20 at one time.

The first step (S1) is a step of setting the reference value for the user to control the transfer amount of grain through the control panel before the operation of the device can adjust the reference value, the set reference value is controlled to be input to the photographing unit 30 .

In this case, the reference value set by the user corresponds to a speed for adjusting the vibration amount of the feeder 10 as a whole, and if "80" is assumed, it means that the control is performed within 80% of the total speed. .

The second step (S2) is to feed the grain while vibrating the feeder 10 by the operation of the device and to shoot the grain falling to the supply chute 20 in the photographing unit 30 for use to adjust the amount of grain transfer Acquiring an image of grain.

At this time, the image of the grain obtained by photographing is filled in the pixel unit of the camera, as shown in Figure 3, is filled by each line and ejector of the pixel to form an image.

In the third step S3, as shown in FIG. 3, the number of pixels filled in pixels of each line is counted out from the image of the grain obtained in pixel units, and the data for the grain image is inputted by dividing by each ejector. Step.

In the fourth step (S4), when the image data of the grain by the number of pixels starts to be input for each line, the sum of the ejector data corresponding to each feeder is accumulated for N seconds, and the falling amount of the grain for each feeder is accumulated. Checking how much it is. At this time, the time used for the summation of the data is set by the user, and is configured to be executed within the range of 5 to 10 seconds.

For example, referring to FIG. 3, a configuration in which any one of the plurality of feeders 10 includes ejector 1 to ejector 4 as a group and the apparatus sums input data for 5 seconds, may be 5 seconds. It is a step for confirming how much the falling amount of grain is for each feeder by summing the number of pixel counts of the grain image present in the pixels in the ejectors 1 to 4 during the ejector.

The fourth step (S4) is ultimately referred to as a reference step for checking the input time of the data for determining the amount of grain transported, summing the input data for each line for each set time by the ejector and accumulate by each feeder Done.

The fifth step S5 feeds back and sums the data for the set time by feeding back to the third step S3 when it is smaller than the set time according to the check of the input time in the fourth step S4. If it is larger than the set time, the required control amount and current control amount for each feeder are calculated based on the data input and summed during the set time.

In this case, the required control amount for each feeder means a software processing value for determining the falling amount (transfer amount) of grains by converting the reference value set by the user into density according to Equation 1 below.

That is, the photographing unit 30 recognizes the amount of grain transferred by the feeder 10 and falling onto the supply chute 20 as an amount (area) of density to be filled in the pixel. The required control amount for each feeder with software value is calculated.

[Equation 1]

Q1 (required control amount) = π / 4 × S × (reference value / 100) + K

Here, π / 4 is a density having the area ratio of the filled circle when the image of the grain is rectangular to the square area of the pixel of the photographing part, S is the speed of the feeder, and K is a constant.

In addition, the current control amount for each feeder means a value obtained by hardware in accordance with Equation 2 in consideration of the ideal correlation with the speed of the actual feeder during operation of the apparatus.

This value is used to control the actual feeder, and it is to find the corresponding point of the reference value set by the user when the total speed is assumed to be 100.

[Equation 2]

Q2 (current control amount) = (S-1) × (Slope / 99) + R

Here, S is the speed of the feeder, and the slope is the part related to the vibration amount of the feeder, and the maximum value of the feeder's shaking minus the minimum value, and R is a constant.

The sixth step S6 is a step of comparing the required control amount Q1 for each feeder, which is a software value obtained in the fifth step S5, with the value of the current control amount Q2 for each feeder, which is a hardware value.

The seventh step (S7) is a feeder for automatically adjusting the feed amount of grain by performing the program numerical analysis step by step based on the following equation (3) according to the comparison between the required control amount (Q1) and the current control amount (Q2) for each feeder It is a step of calculating the final control data value which becomes a reference value of vibration amount control.

[Equation 3]

sdata1 = (delta [0] +1) x 3 + (delta [1] +1);

sdata2 = sdata1 × 10 + ((delta [2] +1) × 3 + (delta [3] +1);

sdata3 = sdata2 × 10 + ((delta [4] +1) × 3 + (delta [5] +1);

sdata4 = sdata3 × 10 + ((delta [6] +1) × 3 + (delta [7] +1) ==> final control data value

Here, the delta is an access constant for quickly accessing the reference value set by the user in the amount of grain currently viewed by the photographing unit, and "-1, 0" according to the numerical comparison in the sixth step S6. , 1 ".

That is, if the required control amount for each feeder is larger than the current control amount, delta has a value of "-1", and vice versa, delta has a value of "1", and the basic delta is controlled to have a value of "0". .

In the eighth step S8, when the final control data value by the program numerical analysis is calculated, the final control data value is compared with the reference value set by the user in the first step S1, and the final control data value is determined by the reference value. If smaller, the control unit increases the vibration amount of the corresponding feeder through the feeder control unit, and if the final control data value is larger than the reference value, controls to reduce the vibration amount of the corresponding feeder. And control to perform the above-described steps continuously while the device is running.

1 is a flow chart showing to explain a method for automatically adjusting the transport amount of grain according to the present invention.

Figure 2 is a schematic main configuration of the grain sorting apparatus used in the present invention.

Figure 3 is an exemplary view shown for explaining the data input of the grain image obtained by the imaging in the present invention.

Claims (3)

A plurality of feeders 10 for conveying the grains by the tremor of vibration, the feed chute 20 is installed obliquely at the end of each feeder 10, and the grain descending through the groove 21 of the feed chute 20 In the grain sorting apparatus comprising a photographing unit 30 for photographing, and the ejector 40 installed in the corresponding number and the groove 21 formed in the supply chute 20, Setting a reference value to determine a transfer amount of the grain transferred through the feeder (S1); Photographing grains falling onto the supply chute 20 by the photographing unit 30 to obtain an image of a pixel unit (S2); Counting the number of pixels filled in the pixels of each line from the grain image acquired in the step S2, and inputting data for the grain image by dividing by the ejectors; When the image data of the grain by the number of pixels starts to be input, accumulating and accumulating the data for each ejector for N seconds to determine how much the amount of grain falls for each feeder (S4); If the cumulative accumulation time of the ejector-specific data is less than the N seconds, feeding back to the data input step (S3), and if greater than the N seconds, obtaining the required control amount and the current control amount for each feeder (S5); Numerically comparing the required control amount for each feeder and the current control amount for each feeder obtained in the step S5; Calculating a final control data value by performing numerical analysis according to a comparison between the required control amount for each feeder and the current control amount; Compare the final control data value by the numerical analysis with the reference value set by the user and if the final control data value is less than the reference value, the vibration amount of the feeder is increased, and if the final control data value is greater than the reference value, the vibration amount of the feeder And reducing and feeding back to the data input step (S3) if both are identical (S8). The method of claim 1, In the fifth step (S5), the required control amount for each feeder is obtained by the formula " π / 4 × S × (set reference value / 100) + K " The current control amount for each feeder is obtained by the formula of "(S-1) x (tilt / 99) + R". The method of claim 1, In the seventh step (S7), the final amount of control data, characterized in that for calculating the final control data based on the following formula. sdata1 = (delta [0] +1) x 3 + (delta [1] +1); sdata2 = sdata1 × 10 + ((delta [2] +1) × 3 + (delta [3] +1); sdata3 = sdata2 × 10 + ((delta [4] +1) × 3 + (delta [5] +1); sdata4 = sdata3 × 10 + ((delta [6] +1) × 3 + (delta [7] +1)

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