KR20180067205A

KR20180067205A - A computer-readable recording medium with needle error detection program for weaving loom

Info

Publication number: KR20180067205A
Application number: KR1020160168686A
Authority: KR
Inventors: 신재훈; 이용안
Original assignee: 엘림광통신 주식회사; 이용안
Priority date: 2016-12-12
Filing date: 2016-12-12
Publication date: 2018-06-20
Also published as: KR101968250B1

Abstract

The present invention relates to a program for detecting errors of a loom needle, and according to the present invention, needles (20) contained in a needle container of the loom needle are set in one-to-one correspondence to set a needle region (20), current needle images of the needle photographed in an imaging element (120) and the set needle region (20) are matched to obtain an image corresponded to the needle region, and the errors of the needles are detected based on the brightness of the obtained image, and thus, there is an advantage that the errors of the loom needle can be detected easily and accurately.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a computer readable recording medium on which a loom needle error detection program is recorded.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loom, and more particularly, to a computer readable recording medium on which a loom needle error detection program is recorded so as to be able to detect breaking, cutting, breakage, etc. of loom needle in a reliable and simple manner.

In general, looms are machines for weaving looms using warp and weft yarns and are currently used by most textile, weaving or woolen companies.

The weaving machine needle is attached to the needle barrel inside the weaving machine. Generally, the weaving machine is composed of two needle barrel, and more than 80 needles are installed in one needle barrel.

In the present technology of knitting a fabric using a weaving machine as described above, when there is an abnormality in a needle [needle] which is a main component of a weaving machine, it is checked whether or not the needle It is true.

Therefore, since the manager resides in each loom and confirms the abnormality of the loom, there is a burden on the labor cost of the loom manager and depend on the sense or experience of the manager.

A technique for solving such a conventional problem is known as "IOT platform-based loom monitoring and management system " according to Japanese Patent Registration No. 10-1616413 (published on Apr. 29, 2016).

Since the technology according to the above-mentioned Japanese Patent No. 10-1616413 is described in the patent publication, a detailed description will be omitted.

However, according to the technique of Patent No. 10-1616413, a method of judging the abnormality of the needle is to compare and analyze the image itself. In this case, it is necessary to have a video image for each needle, The implementation of the program for comparative analysis of the image of a needle is costly and complicated and it is difficult to commercialize it realistically.

Literature 1. Published Japanese Patent Application No. 10-2014-0030305 (published on March 11, 2014) Document 2. Published Japanese Patent Application No. 10-2004-0026642 (Disclosure Date: March 31, 2004) Literature 3. Patent Registration No. 10-1616413 (Published on Apr. 29, 2016)

The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a computer readable recording medium on which a weft-

First, when a needle of a loom is in a deformed state, for example, in a warped state, or in case of an error such as a broken or broken F, a needle region is set and an error of the needle can be detected based on a brightness difference in each region,

Second, it is an object of the present invention to provide a computer readable recording medium having recorded thereon a weft needle needle error detection program adapted to detect a needle error in a simple and reliable manner.

According to an aspect of the present invention, there is provided a computer readable recording medium on which is recorded a program for executing a needle thread error detection program for a computer, the needle region being associated with each needle contained in a needle cylinder of a loom, And acquires an image corresponding to the needle area by matching the current image of the needle taken by the image pickup element 120 (hereinafter referred to as a current needle image) with the previously set needle area 20, And an error of the needle is detected on the basis of the brightness.

The needle error detecting program includes a step S710 of setting a needle area 20 corresponding to each needle contained in a needle cylinder of a loom in a one-to-one correspondence, a step S710 of setting a needle area 20 corresponding to a current image of the needle (S720) of obtaining an image corresponding to the needle area by matching the current needle image with the needle area 20 that has been set in step S720, comparing the current brightness of the acquired image with the reference brightness value, (S750). If the current brightness value is smaller than the reference brightness value, it is determined that the current brightness value is an error.

A computer-readable recording medium having recorded thereon a woven needle error detecting program for execution by a computer of the present invention includes a step (S730) of converting an acquired image into a monochrome image (S730) after performing an image acquisition step (S720) (S740), and the error determination step (S750) compares the current brightness value of the extracted edge image with the reference brightness value so that the current brightness value is greater than the reference brightness value If it is large, it should be treated as a steady state, and if it is dark, it should be treated as an error state.

The computer readable recording medium on which the woven needle error detection program for execution by the computer of the present invention is recorded may further include storing error judgment data in the error judgment step (S750) (S760) (S770), calculating a current average value of the error judgment data stored in the error judgment data storing step (S780), comparing the current average value with a reference average value (S785) (Step S790). If the current average value is greater than the reference average value, it is determined to be a 'needle error', and if not, it is determined that the needle is normal.

A computer readable recording medium having recorded thereon a weft knitted needle error detection program for execution by a computer of the present invention is characterized in that the step (S710) of setting the needle area comprises: displaying a video image of a needle (Step S810), a step S820 of inputting a region setting data value, and a step S820 of inputting a region setting data value, And a number of needle areas corresponding to the number of needles is set (S830).

The computer readable recording medium on which the above-described woven needle error detecting program of the present invention is recorded has the following effects.

First, when there is an error such as when the needle of the loom is in a deformed state with warping or when it is cut or broken, it is effective to set the needle area and to detect the needle error based on the brightness difference in each area .

Second, the error of the needle can be detected simply and reliably as described above.

1 is a block diagram of a woven needle error detecting apparatus according to an embodiment of the present invention.
2 is a detailed block diagram of the needle error detector of FIG.
3 is a flowchart of a method for detecting a loom needle error according to an embodiment of the present invention.
FIG. 4 is a flow chart of a woven needle error detection program according to an embodiment of the present invention.
FIG. 5 is a detailed flowchart of the needle area setting step S710 in FIG.
Fig. 6 is an exemplary view in which a needle area 20 is set on a needle of a loom.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a woven needle error detecting device according to the present invention will be described in detail below with reference to the accompanying drawings.

As shown in the figure, the apparatus for detecting a woven needle needle according to an embodiment of the present invention is configured to take a needle of a loom 10 and to transmit a current image of the taken needle (hereinafter referred to as a current needle image) The needle area 20 is set so as to correspond one-to-one to the needles of the image pickup device 120 and the loom 10. The needle area 20 is set in correspondence with the current needle image received from the image pickup device 120, 20) to obtain an image of the needle region 20 (specifically, an image in the needle region 20), and to deform or cut the needles of the loom 10 based on the brightness of the acquired image And a needle error detector 110 for detecting a needle error.

When there is an error needle, the needle error detector 110 outputs a loom driving stop control signal to the loom driving controller 131, and the loom 10 receiving the loom driving stop signal from the loom driving controller 131 stops its operation.

The loom driving controller 131 may be incorporated in the loom 10 or may be implemented as a separate structure.

Then, the needle error detector 110 transmits the status information (normal or error) of the needle to the manager computer 140.

If there is an error needle, the needle error detector 110 outputs a warning light drive control signal to the warning light controller 132, and the warning light controller 132 receives the error signal and operates the warning light 133. [

In the weft needle error detecting apparatus according to an embodiment of the present invention, the needle error detector 110 is provided with a needle region 20 corresponding to one needle of each needle of the loom 10, The needle image of the needle 10 is obtained on the basis of the brightness of the obtained image by matching the current image of the needle received from the needle 120 with the predetermined needle area 20, And a control unit 112 for executing a program stored in the program storage unit 114 and outputting a woofer driving stop control signal and a beep light driving control signal, do.

Needless to say, the needle error detector 110 must include an interface for transmitting and receiving a video image and a signal.

Next, a needle error detection method by executing a needle error detection program recorded in a recording medium (program storage unit 114 in the above example) will be described.

The image pickup element 120 photographs the needles of the loom 10 (S610).

The current image (current needle image) of the needle taken by the imaging element 120 is transmitted to the needle error detector 110 (S620).

The needle error detector 110 executes the needle error detection program stored in the internal memory to detect whether there is an error needle (S630).

If there is an error due to the detection, a loom stop control signal is output to the loom drive controller 131 provided in the loom (S640).

If there is an error due to the detection, the warning lamp control unit 112 for operating the warning lamp 133 outputs a warning lamp operation control signal (S640).

The step S630 of detecting whether or not there is an erroneous needle sets the needle area 20 to be one-to-one corresponded to each needle contained in the needle cylinder of the loom, (Hereinafter referred to as " needle image ") and the previously-set needle area 20 to obtain an image corresponding to the needle area, and detecting an error of the needle based on the brightness of the acquired image .

The step (S630) of detecting whether or not there is an needle with the error is performed by execution of a needle error detecting program. Specifically, the needle error detecting program is performed in the following order.

First, a step S710 is performed in which the needle area 20 is set so as to correspond one-to-one with each needle previously contained in the needle cylinder (not shown) of the loom.

The step of setting the needle area (S710) is implemented by sequentially performing the following steps.

The control unit 112 loads the image of the needle taken by the image pickup device 120 (refer to 'area setting needle image' below) at a reference position of a specific sector of the internal memory (S810).

Thereafter, step S820 in which the area setting data value is input is performed.

The area setting data value may be input to the needle error detector 110 by providing an input unit to the needle error detector 110. However, the area error data may be input to the needle error detector 110 by an area setting terminal (not shown) ], And input the area setting data value through the area setting terminal.

When the area setting terminal is connected to the needle error detector 110 wirelessly or by wire, the 'area setting needle image' loaded at the reference position is transmitted to the area setting terminal (not shown) connected to the needle error detector 110 by the controller 112 (Not shown), and an area setting data value is input from an input unit (not shown) of the area setting terminal, so that the needle area 20 can be set.

The area setting data value is, for example, a reference coordinate value, a height and a width value, and the number of areas.

When the reference coordinate value (e.g., coordinate value of the upper left corner), the height of the entire area, the width of the entire area, and the number of areas (for example, 40 as shown in FIG. 6) are input, the area is set to match the image.

FIG. 6 shows an example of setting this area to the user through the display unit.

As shown in FIG. 6, there are 40 needle regions 20 on the upper side and 40 needle regions 20 on the lower side, which are indicated by green lines. Needles are present for each needle region 20, And one imaging element 120 takes charge of capturing 40 needles in the 40 needle areas.

In the needle area on the upper side, there are three black portions indicated by red lines. In this needle area, the needles are lost and appear black. In the case of this needle area, the binary data will be processed as zero.

As described above, when the area setting data value is input, the number of needle areas corresponding to the number of needles is set one-to-one with each needle of the needle image image (S830).

As described above, when the needle area is set, the loom 10 is operated to detect whether there is an error in the needle in the weaving process.

The image corresponding to the needle area is acquired by matching the current image of the needle taken by the image pickup device 120 (hereinafter referred to as the current needle image) and the needle area 20 previously set (S720).

After the step of acquiring the image (S720), the step of converting the acquired image into the monochrome image (S730) is performed.

The step of extracting the edge of the converted monochrome image (S740) is performed.

This is to make the image more vivid and to extract the current brightness value accurately.

If the current brightness value is larger than the reference brightness value, it is determined that the current brightness value is normal. If the current brightness value is smaller than the reference brightness value, it is determined that the current brightness value is an error (S750) .

In the error determination step S750, the current brightness value of the extracted edge image is compared with the reference brightness value. If the current brightness value is larger than the reference brightness value, the error is determined to be a normal state (binary data 1) Data 0).

The error determination in step S750 determines whether there is an error with only one image value.

However, in order to increase the reliability of judgment, it is performed a plurality of times (for example, 30 times per minute), and an error is judged based on the average value of the plurality of performances. Hereinafter, this method will be described.

The step S760 of storing the error determination data (binary data of the normal state and the error state) in the error determination step S750 is performed.

The steps S720 to S760 are repeated n times (n: 30, for example, natural number greater than 2) in a plurality of circuits (S770).

The current average value of the error judgment data stored in the error judgment data storing step is calculated (S780).

Then, the current average value and the reference average value are compared (S785).

If the current average value is greater than the reference average value, it is determined to be a 'needle error', and if not, it is determined that the needle is normal (S790).

The control unit 112 outputs the control signal to the woofer driving controller 131 and outputs the woofer driving control signal to the woofer controller 132. [

Then, the manager computer 140 outputs the status information of the needle.

It will be apparent to those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or scope of the invention as defined in the appended claims. It is self-evident to those who have.

Therefore, the above-described embodiments are to be considered as illustrative rather than restrictive, and the present invention is not limited to the above description, but may be modified within the scope of the appended claims and equivalents thereof.

10: loom 110: needle error detector
20: Needle area 112:
114: Program storage unit 120: Image pickup element
131: loom drive controller 132: beacon controller
130: a warning lamp 140: a manager computer

Claims

The needle area 20 is set so as to correspond one-to-one with the needles contained in the needle barrel of the weaving machine, and the current image of the needle taken by the imaging element 120 (hereinafter referred to as the current needle image) (20) to obtain an image corresponding to the needle area, and detecting an error of the needle based on the brightness of the acquired image.

The method according to claim 1,
The needle error detection program may further comprise:
A step S710 in which the needle area 20 is set so as to correspond one-by-one to each needle contained in the needle cylinder of the loom,
A step S720 of acquiring an image corresponding to the needle area by matching the current image of the needle taken by the image pickup element 120 (hereinafter referred to as the current needle image) and the needle area 20 previously set,
Comparing the current brightness of the acquired image with a reference brightness value, determining that the current brightness value is normal if the current brightness value is greater than the reference brightness value, and determining that the current brightness value is an error if the current brightness value is less than the reference brightness value (S750) A computer readable recording medium on which a loom needle error detection program is recorded.

The method of claim 2,
After performing the step S720 of acquiring an image,
Converting the acquired image into a monochrome image (S730)
And a step (S740) of extracting the edge of the converted monochrome image,
In the error determination step S750, the current brightness value of the extracted edge image is compared with the reference brightness value. If the current brightness value is greater than the reference brightness value, A computer-readable recording medium on which a program is recorded.

The method of claim 3,
(S760) of storing error determination data in the error determination step (S750)
The steps S720 through S760 are repeated a plurality of times (S770)
Calculating a current average value of the error judgment data stored in the error judgment data storing step S780;
Comparing the current average value with a reference average value (S785)
If the current average value is larger than the reference average value, it is determined to be a 'needle error', and if not, it is determined that the needle is normal (S790) A computer readable recording medium on which a loom needle error detection program is recorded.