JPH09160996A - Method for preparing code and code reader - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply prepare various white-and-black information by preparing information for every call unit or block unit with an information yarn with a color possible to be discriminated by a camera at the time of preparing information for cloth or the like. SOLUTION: The thickness of vertical information yarn 10 is set up to the same thickness as horizontal information yarn 11, the color of each yarn can be discriminated by a camera, and when the yarn 10 is white, black is used for the yarn 11 to display information. Since the yarn 11 of a two-dimensional code to be prepared is black yarn, the yarn 11 is woven so as to be front side against the yarn 10 when information is 'black', but a fixed point is inserted almost in every cell, the horizontal information yarn 11 and the vertical information yarn 10 are successively woven while selecting the side of the yarn 10 on which the yarn 11 is arranged by considering adjacent right and left cell information. Since the fixed point of the yarn 11 is the length of almost one cell, the yarn can be prevented from being caught and cut off and accurate information display can be attained.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a cloth or the like,
The present invention relates to a method of creating a one-dimensional code or a two-dimensional code.

[0002]

2. Description of the Related Art One-dimensional codes (bar codes) are printed on paper and used to display information on various articles. On the other hand, for the two-dimensional code, various methods have been proposed, but they have not been widely used yet.

[0003]

A one-dimensional code (bar code) is printed on paper and used. However, a cloth woven from threads of natural fibers or synthetic fibers, natural leather, synthetic leather, etc. It is the current situation that it is not created on fabrics, etc.). Since it is possible to manage various information if created on fabrics, etc., a method of creating it is desired. Further, since the two-dimensional code is not yet widespread, it is useful to make it more commonly used to promote widespread use. Therefore, like the above-described one-dimensional code, a method of creating it on a cloth or the like is provided. By creating a code on cloth etc., it is very useful for transmitting (processing) information such as the manufacturing process and distribution channels. For example, phone numbers and names are displayed as one-dimensional code or two-dimensional code on clothes and umbrellas. And when I forget it, the storage manager can read the code to know the owner, and immediately call the phone to process the umbrella. Therefore, the present invention solves various problems in creating a one-dimensional code or a two-dimensional code, and provides a more rational code creating method.

[0004]

According to the method for creating a two-dimensional code of claim 1, when creating on a cloth or the like, it is created for each cell unit or for each block by information thread of a color identifiable by a camera. By creating cells in this way, various black and white information can be easily created. The method for creating a two-dimensional code according to claim 2 uses vertical information yarns and horizontal information yarns of colors that can be identified by a camera, and uses horizontal information yarns for the vertical control yarns and cell information on the left and right sides of the vertical control yarns. Depending on, you can select the front side or the back side and create a two-dimensional code.By creating in this way,
The fixed point of the horizontal information thread that displays "black" information can limit the length of the thread that is biased to one side by allowing it to exist within the preset number of cells, preventing the thread from being cut due to catching, etc. Can be prevented.

The method for producing a two-dimensional code according to claim 3 employs a lateral control thread of a color that can be distinguished from the lateral information thread according to claim 2, and creates fixed points of the longitudinal information thread and the longitudinal control thread. Therefore, it is possible to limit the length of the warp information yarn and the warp control yarn that are biased to one side, which prevents the yarn from being cut and allows loss of information. The two-dimensional code creating method according to claim 4 employs a horizontal fixed thread of a color that can be distinguished from the horizontal information thread, and the horizontal fixed thread is woven with a vertical information thread and a vertical control thread to create a fixed point. Therefore, the length of the warp information yarn and the warp control yarn, which is biased to one side, can be limited without using the weft control yarn, so that the yarn can be prevented from being cut and information can be lost.

According to a fifth aspect of the present invention, in forming a one-dimensional code on a cloth or the like while weaving a horizontal information thread and a horizontal fixed thread, a vertical fixed thread, a vertical information thread, and a vertical control thread, the color of the horizontal information thread is changed. Select a color that can be identified by the camera from the color of other threads, and create a fixed point by weaving the horizontal information thread and the horizontal fixed thread on the front side of the warp information thread and on the back side of the vertical control thread. By doing so, it is possible to limit the length of the one-sided yarn, prevent the yarn from being cut, and prevent the loss of information. Claim 6
In the method of creating a one-dimensional code according to claim 5, the warp control yarn is made to have the same color as the transverse information yarn, the length of the yarn biased to one side can be limited, and the information at the fixed point is the transverse information. It becomes the same as the thread, and the identification becomes more reliable.

According to the method of creating a two-dimensional code of claim 7, when a two-dimensional code composed of a plurality of cells is sewn on a cloth or the like with a sewing machine, an upper thread (information thread) for the cloth or the like that can be identified by a camera is used. By using and creating so that at least the starting point of each cell or block is fixed,
The fixed point of the information thread is almost every cell (every block) to prevent information loss. The method for creating a one-dimensional code according to claim 8 is: when creating a one-dimensional code on a cloth or the like with a sewing machine, the information thread is created in a vertical direction based on a unit length with an information thread of a color identifiable by a camera. Since the fixed point of the thread is for each unit length, accurate information can be displayed. In the method for creating a two-dimensional or one-dimensional code according to claim 9, the information thread of a color identifiable by the camera is a thread containing a fluorescent material, so that the code that can be identified even if the color is the same as the color of the cloth or the like. Can be created.

According to a tenth aspect of the present invention, a reading device reads a one-dimensional or two-dimensional code created on a cloth or the like in a state where the lens is out of focus, thereby distinguishing information by the information thread from other information. It is easy to construct a simple device. [Detailed Description of the Invention]

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Two-dimensional code 1 shown in FIG.
Is a fabric, etc. 5 (a fabric woven from natural or synthetic fibers,
It is an example of a matrix type cord (length L1 × L2 (10 to 20 mm) in the vertical and horizontal directions to be created on natural leather or synthetic leather, and a plurality of square cells C are arranged vertically and horizontally, Each cell C is displayed in “white” and “black” according to the information, and FIG. 1B is an enlarged view of a two-dimensional code part showing an example as information, in which cell C11 is “black”, Cell C12 is "white", cell C13 is "black", cell C14 is "black",
C21 is "white", cell C22 is "white", cell C23 is "black",
The cell C31 represents "black", the cell C32 represents "black" ...

Next, a weaving machine method and a sewing machine method for producing the two-dimensional code shown in FIG. 1B on a cloth will be specifically described. (1) Loom system This loom system uses warp yarns 10 made of natural fibers or synthetic fibers.
The two-dimensional code 1 is created by weaving the weft 11 and the weft thread 11, and the two-dimensional code 1 is created together with the cloth 5 and the like.

(First Embodiment) Specifically, a method of creating a two-dimensional code will be described with reference to FIG.
And the weft thread 11 have the same thickness (the horizontal information thread is drawn thick for easy understanding in the figure), and the color of each thread uses a color that can be identified by a camera (CCD sensor or the like).
When the warp thread 10 is white, the weft thread 11 is black and information is displayed. Also, the information of “white” and “black” displayed in one cell is 3 weft threads and 3 warp threads, but “black”
Since the fixed points of the weft thread 11 for displaying the information of 4 are the lengths of about 1 cell in order to accurately display the information, the length of the weft thread 11 is set to 4 so that a square cell is formed. Therefore, four horizontal information threads, three vertical information threads and one vertical control thread are used.

The two-dimensional code to be created is shown in FIG. 1 (B).
Information example shown in cell C11 (black), C12 (white), C13
(Black), cell C14 (black) ..., and since the weft information thread 11 is "black thread", when the information is "black", the weft information thread is on the front side of the warp information thread 10. However, in order to put a fixed point in each cell, in consideration of cell information on the left and right adjacent to each other, at the intersection of the longitudinal control threads dhlp ...

That is, when the left and right cell information of adjacent warp control yarns is "black and white", the transverse information yarns are on the back side of the control yarns, and the information display area corresponds to one cell. Similarly, when the left and right cell information of adjacent warp control yarns is "black and white", the weft information yarns are on the back side of the warp control yarns, and the information display area is made to correspond to one cell and 1 by thread
Create a two-dimensional code for each cell. When the left and right cell information of adjacent warp control yarns is "black and black", the weft information yarn is on the back side of the warp control yarns and the left and right cell information of adjacent warp control yarns is "white and white". In the case of “”, the lateral information yarn is on the front side with respect to the longitudinal control yarn, thereby limiting the length between the fixed points.

However, if the weft information yarn can display information (black) up to the area of the warp control yarn, that is, the weft information yarn displays "black" over four warp information yarns and warp control yarns. However, if the left and right cell information of the adjacent warp control yarns is "black and white" and "black and white", the weft information yarn is It may be either the front side or the back side. As described above, by sequentially weaving while selecting which side the weft information yarn should be relative to the warp control yarn, the fixed point of the weft information yarn becomes a length of about 1 cell, and the yarn is hooked to It is possible to prevent disconnection and display information accurately.

Therefore, when the left and right cell information of adjacent warp control yarns is "black and white" and "black and white", the horizontal information yarns are selected on the back side of the warp control yarns and the two-dimensional code is selected. A case of creating will be described. In the created two-dimensional code shown in FIG. 2, the solid line indicates the front side and the broken line indicates the back side. First, the horizontal fixed thread vxyz of the weft thread 11 and the warp thread 10 (rst
...) Fabrics are created for areas other than the two-dimensional code area (code area) by weaving blades alternately in sequence. It should be noted that this area is displayed as "white". Next, the horizontal information thread abcd for creating the code area is the cell C11.
Since it is (black), C12 (white), C13 (black), and cell C14 (black), it is placed on the front side with respect to the longitudinal information threads abc, ijk, and mno. Since the cell C12 is "white", the lateral information thread a
The bcd is on the back side with respect to the longitudinal information thread efg. Hereinafter, the same applies to the cells C13 and C14.

In order to distinguish the left side of the cell C11 from the code area, "white" of one cell is displayed.
The bcd is on the back side of the warp fixed yarn vxy, and is also on the back side of the longitudinal control yarn z because the left and right cell information is “black and white”. When the weft information yarn abcd is woven on the back side of the warp control yarn dhl, the weft information yarn abcd
The fixed point of d) is formed almost every one cell, and the horizontal information thread (abcd) can be displayed as information in the vertical information thread (abc, efg ...). Also, at the right end of the code area, in order to distinguish it from the code area, 1 cell of "white"
In order to display, the horizontal information yarn abcd is on the back side because the left and right cell information is “black and white” with respect to the vertical control yarn s, and is also on the back side with respect to the vertical fixed yarn tuv. In the areas other than the code area, the horizontal information yarn abcd is alternately woven with respect to the warp yarn 10 (longitudinal fixed yarn rstu vwx), so that “black” is displayed alternately, but this area is the same as the code area. It can be identified and processed by the reader.

Next, by the horizontal information thread efgh, the cell C
21 (white), cell C22 (white), cell C23 (black), cell C24
In the case of representing (white), the vertical side ijk is the front side,
The vertical information abc, efg, and mno are on the back side.
The warp control yarn dhl is woven on the back side, and the areas other than the code area are woven in the same manner as the transverse information yarn abc. Similarly to the above, with respect to the lateral information ijkl, the front side or the back side is selected, and the weaving is sequentially performed to select the left end (longitudinal fixing yarn v
A two-dimensional code in which "white" is displayed is created for xy) and the right end (longitudinal fixed yarn tuv). In this two-dimensional code, each cell can display "black" or "white", and since the weft information thread is fixed at a length of approximately one cell, information is lost due to being caught on something and the weft thread is cut. Can be prevented. That is, when the cell information on both sides of the warp control thread is "black and black", the weft information thread is on the back side when the cell information is "black and white", and on the front side when it is "white and white", there is almost one cell. It is possible to create a two-dimensional code that can be fixed for each length.

When the fixed points of the warp information yarn and the warp control yarn are on one side over two or more cells (cell C12 (white) and cell C22 (white), etc.), the warp yarn (warp information yarn) of this portion occurs. Or, even if the longitudinal control thread) is cut, the information is not lost because the information is “white”. Needless to say, the number of horizontal information threads and vertical information threads displayed in one cell depends on the accuracy of the CCD camera or the like, and if the accuracy is improved, it is possible to display information of each cell with a thin thread and a small number of threads. Become.

(Second Embodiment) The present embodiment is based on the premise that the fixed point of the transverse information thread has a length that does not cause information loss even over two cells. In the case of creating a two-dimensional code in the same way as the form,
This will be described with reference to FIG. Under this condition, the warp control yarns g, n ... may be provided for every 7th yarn for the warp information yarns (6 yarns), and the cells at this time can be created for each block with 2 cells as one block. is there. It should be noted that each cell is displayed with three pieces of horizontal information thread and vertical information thread.

In this system, when the left and right cell information of adjacent warp control yarns is "black and white" or "black and white", it is premised that the weft information yarns are woven on the back side of the warp control yarns. First, the horizontal fixed yarn vxyz is alternately woven with the warp yarn 10 to create a cloth or the like other than the two-dimensional code area (code area). This area is displayed in white and can be distinguished from the code area. And cells C11 (black), C12 (white), C13
For black (black) and cell C14 (black), the horizontal information abc is
Since the cells C11, C13, and C14 are "black", they are placed on the front side with respect to the longitudinal information threads abc and hijklm. or,
Since the cells C12 and C15 are "white", the lateral information thread ab
c is the back side with respect to the longitudinal information threads def and opq.
The horizontal information thread abc is on the back side of the vertical control thread gn.

In this example, unlike the first embodiment, the "white" information is not displayed at the left and right ends of the code area, and the horizontal information thread abc is the vertical fixed thread stuvxy.
As a general rule, z can be alternately woven, but the code area information (Cn1) starts with "white", C21.
In the case of, for example, two fixed yarns may be spread, such as a horizontal information yarn df and a vertical fixed yarn yz.

Next, by the transverse information thread def, the cell C21
(White), cell C22 (white), cell C23 (black), cell C24
(White) and cell C25 (black) represent vertical information hi
For j and opq, the front side, vertical information abc, def, k
It is the back side for lm and the back side for the longitudinal control yarn gn. Also, with respect to the lateral information yarn ghi, a two-dimensional code can be created by sequentially weaving in the same manner as described above. As described above, the horizontal information thread is changed to the vertical control thread g.
By weaving so that it is on the back side with respect to n, the fixed points of the transverse information yarns are fixed at least every 2 cells to prevent information loss, and "white" is provided at the left and right ends of the two-dimensional code area. Even if the area is not provided, it can be distinguished from the information through the reading device.

The lateral information yarn is one cell on the left and right adjacent to the longitudinal control yarn gn with respect to the longitudinal control yarn gn (for example, cells C12 and C13 for the longitudinal control yarn g). However, in this method that can be fixed every two cells, two cells (for example,
For the longitudinal control thread g, cell C11, cell C12, cell C13,
It is also possible to make a decision by considering the cell C14). That is, the horizontal information thread is “white-white-white-white” for the longitudinal control threads g, n ...
If 3 or more are the same on one side, such as the front side when "white white black and white" or "black white white white", and the back side when "black black black black white", "black black black white", "black black black black white" , And others can be created so that either side may be used. Further, in the method of fixing every 3 cells, a warp control thread is provided for every 3 cells, and whether the warp control thread is on the front side according to the information of 2 cells, 4 cells or 6 cells on the left and right, You only have to decide whether to make it on the back side. That is, the method that can be fixed every n cells is
The warp control yarn may be set for every n cells, and the warp control yarn may be selected based on the information of the left and right n cells or less.

As described above, when a two-dimensional code is created for each cell using the lateral information yarn, the lateral information yarn biased to the back side (or front side) is introduced at a predetermined position by introducing the longitudinal control yarn. It can be fixedly created and the information thread can be prevented from being biased to one side to prevent information loss. It is needless to say that the method of displaying the "white" information at both ends of the code area can be adopted in the present embodiment as in the first embodiment.

(Third Embodiment) In the present embodiment, as shown in FIG. 4A, a weft control yarn (dd'hh '...) is used as the weft yarn 11 in addition to the weft information yarn. Then, the two-dimensional code shown in FIG. 1 (B) is created. The color of the lateral control yarn (dd'hh '...) Uses the same white yarn as the longitudinal information yarn, which is distinguishable from the lateral information yarn. The reason for using the two lateral control threads d and d'is that the longitudinal information thread and the longitudinal control thread can be fixed in almost one cell, and the lateral control thread d is used for the longitudinal information thread. The front side is woven on the back side with respect to the warp control yarn d, while the weft control yarn d'is woven on the back side with respect to the warp information yarn and the front side with respect to the length control yarn d.

If the two-dimensional code shown in FIG. 1 (B) is created under the above-mentioned conditions and assuming that the lateral information yarn is on the back side when the cell information on both sides of the longitudinal control yarn is "black and white" or "black and white". The weft control yarns, weft control yarns, warp information yarns, and warp control yarns can all be woven in a fixed state with a length of about 1 cell, and the weft control yarns dd ′ are “white”. For,
It can be identified as a transverse information thread. As described above, in the present embodiment, by introducing two weft control yarns, the warp information yarns and the warp control yarns can be fixed almost every cell, and the weft information yarns are also fixed almost every cell. You can create a two-dimensional code in the state.

Further, as shown in FIG. 4 (B), the lateral fixed threads (lateral control threads) yz and the lateral control threads dd ', hh' are arranged with the information threads abc, efg ... To 1
It is made up of alternate pitches. By the lateral control threads yz, dd ', hh' ..., the longitudinal information threads abc,
efg ... and warp control yarns dh ... have fixed points formed for each cell with the above-mentioned weft control yarns, and the production of these weft control yarns is simple and useful.

(Fourth Embodiment) In the present embodiment, as shown in FIG. 5, a weft thread 11 has a weft information thread (abc ...), a weft fixing thread (wxyz a'b'c '...), and a warp thread. A vertical fixed thread (vwxyz), a vertical information thread (abc ...) And a vertical control thread (dh ...) are adopted for 10 to create a two-dimensional code. Here, the horizontal information yarns (abc ...) Use black yarns and the other yarns are white yarns. First, in areas other than the code area,
The weft fixing yarn wxyz is alternately woven with the warp yarn 10 to create a white background. The horizontal information thread a is the vertical information thread abc,
"black" based on the cell information only for efg ...
If so, the front side, and if "white", the back side. In addition, the lateral information thread a
bc ... is the back side of the warp control thread d ... if the left and right cell information of the control thread is "black and black", the front side of "white and white", and the back side of "black and white" and "black and white". To exist in the code area only.

More specifically, in the code area, the lateral information threads abc are the cells C11, C13 and C14.
Is "black", it is on the front side for the vertical information abc, ijk, and mno, and the cell C12 is "white", so it is on the back side for the vertical information thread efg. Also, the lateral information thread abc is
The longitudinal control yarn dhlps is on the back side. The weft-fixing yarns a ′ are alternately weaved with respect to the warp yarns 10 (abc ...), but the weft-moving yarns are moved by one pitch with respect to the weft-fixing yarns z, and the weaving yarns b ′, c ′ ... . Hereinafter, the horizontal information yarn b, the horizontal fixed yarn b ′, the horizontal information yarn c, and the horizontal fixed yarn c ′ are sequentially woven with respect to the vertical fixed yarn vwxyz, the vertical information yarns abc, efg, ..., The vertical control yarn dh. To create a two-dimensional code. In this two-dimensional code, fabric etc. are created with a horizontal fixed thread, and information of "white" and "black" can be displayed in the code area by the horizontal information thread, and the horizontal information thread is fixed at a length of about 1 cell. It

As described above, the weft thread 11 and the weft lock thread are used as the weft thread 11, and the weft thread, the warp thread, and the warp thread are woven while creating a two-dimensional code to obtain the weft thread ( All other than (black) are white, and two-dimensional codes of "white" and "black" can be created as well as fabric, and the positions where the horizontal information thread, the vertical information thread, and the vertical control thread are fixed can be selected. Can be created. In addition, the lateral information yarn, the lateral fixed yarn, which constitute one cell,
It goes without saying that the numbers of the warp information yarns and the warp control yarns can be selected appropriately. Further, in this two-dimensional code, the horizontal information thread (black) and the horizontal fixed thread (white) are alternately displayed. Therefore, the thickness of the horizontal information thread (abc, efg ...) Is set to the horizontal fixed thread (a'b ').
c ', e'f'g' ...) makes the black display larger than the white display, which is desirable for the reading device, but can be easily identified by the method described later. Is.

(Fifth Embodiment) The present embodiment relates to a method for producing a one-dimensional code on a cloth or the like. FIG. 6A shows an example of a one-dimensional code.
The thick bar (X) and the thin bar (UYZ) are arranged in parallel at intervals. When creating this one-dimensional code on a cloth or the like through an information thread (a color that can be distinguished from other threads by a camera), when fixed at both ends of a thick bar and a thin bar,
The length of the information thread that is biased to one side becomes long, and the information thread may be caught and cause information loss. Therefore, the one-dimensional code is created as well as the cloth and the like are created in the following manner. The color of the lateral information thread is selected as "black", and the color of the other threads is "white". In addition, the warp control yarn is set every four yarns in order to limit the length of the weft information yarn that is biased to one side, and the length of information is approximately nine warp yarns.

Next, a specific description will be given with reference to FIG. First, in areas other than the one-dimensional code area (code area), the horizontal fixed thread vyz is the vertical fixed thread vxy.
Z, the longitudinal information yarns abc, efg ... And the longitudinal control yarns dh ... are alternately woven. Then, for the thin bar (U), the horizontal information yarn a is used, for the vertical fixed yarn vxyz, as a general rule, alternately weave, and for the vertical information yarns abc, efg, ijk on the front side, The back side of the control yarn dhl. As a result, the horizontal information thread a is changed to the vertical information threads abc and e.
“Black” can be displayed in the fg and ijk portions, and “white” is slightly displayed in the vertical control thread dhl portion, but a thin bar (U) is displayed, but even with such a display, it can be identified. is there. However, if a "black" thread of the same color as the transverse information threads (a, cde) is used for the longitudinal control thread dhl, "black" can be continuously displayed, and a more reliable display is obtained. Since the longitudinal control thread dhl has a fixed point, it is not biased to one side long, and it is possible to prevent a situation where information is lost due to being cut by being caught by something.

Next, the same applies to the horizontal fixed thread b which displays a blank. Also, to display the thick bar (X),
Using three lateral information threads cde, weave in the same manner as the lateral information thread a. By creating a one-dimensional code as described above, the length of one side of the transverse information thread can be limited,
Information loss can be prevented, and if the color of the longitudinal control yarn dhl is the same as that of the transverse information yarns a, bcd, ..., Continuous "black" display is possible and more clear information display is provided.

As mentioned above, in this loom system,
Each cell information can be created by weaving a weft fixed yarn, a weft information yarn and a warp fixed yarn, and a warp information yarn, and by adopting a warp control yarn and a weft control yarn, it becomes possible to select a fixed position of the information yarn. . That is, this loom system determines the number and thickness of information yarns, control yarns, or fixed yarns based on the conditions for one cell (or a plurality of cells) in consideration of the accuracy of the reading device, the size of cells, and the like. Needless to say, it may be appropriately selected and woven, and those shown in FIGS. 2 to 6 are examples and not limited thereto. In addition, when creating a one-dimensional code or a two-dimensional code while creating a fabric or the like, in each of the above-described embodiments, in the areas other than the two-dimensional code area (cell area), one weft thread and one warp thread are used in principle. Each of them is alternately woven, but is not necessarily limited to this weave.

(2) Sewing Machine Method Next, a method of creating a two-dimensional code using a sewing machine will be described. This sewing machine method is created by sewing a cloth 5 or the like with an upper thread (also called information thread) and a lower thread made of natural fibers or synthetic fibers through a sewing needle. As the color of the upper thread (information thread), a color that can be identified by a CCD camera with respect to the cloth 5 or the like is used, while the lower thread may be different from the color of the cloth or the like, but It is desirable to use the same type as the color.

(Sixth Embodiment) FIG. 7A shows a method of displaying a two-dimensional code for displaying the same information as in FIG. Medium A ~
Q and S to V are positions at which the sewing machine needle descends and is fixed. The warp yarns a to p and the weft yarns a to m shown in FIG. 7 (A) are for making cloth or the like, and the thick line 20a or the like is the information yarn. First, a sewing machine needle (not shown) is lowered at a position of a starting point A by a controller (not shown) to set a fixed point through a lower thread, and then it is determined whether the information in the cell C11 is "black" or "white". To do. Since it is "black", place cloth on the B position (ΔL
The needle thread 20a appears on the front side by moving it to 1) horizontally to make it a fixed point. Next, when the sewing machine needle is moved downward by ΔL2 to the fixed point C, and the sewing machine needle is lowered at the positions of D, E, F, G, and H in the same manner to become the fixed point, the upper thread 20
The four cells a, 20b, 20c, and 20d make the cell C11
"Black" information can be created.

Next, the needle thread 20e is displayed with the starting point I of the cell C21 below it as a fixed point, and it is determined whether the information of the cell C21 is "black" or "white". Since the information is "white", the starting point I
Cut the upper thread with. Even if the upper thread is cut at this fixed point I,
Although the upper thread of cell C11 was not unraveled, if it is unraveled a little, the information of 1 cell is composed of the number of threads of 5 or more, or the position from the fixed point I to the position H It is desirable to cut back after making the fixing point, or it can be prevented by pulling the lower thread strongly to make the upper thread on the back side and then cutting, or using silk etc. for the upper thread. After cutting the upper thread on the back side and applying heat, a lump is formed at the tip to prevent loosening.

After cutting at the fixed point I, the cloth or the like is moved to the starting point J of the next cell C31 to be the fixed point. Since the information of the cell C31 is "black", the cell C11 is
Similarly, the upper thread is fixed at points K to Q to create "black" information. Further, when the cells C11, C21 ... Are completed, the cells Cn2, Cn-12 ... on the right side are created, and after the cell C32 (black) is completed, the information "white" of the cells C22, C12 is created.
In this case, the needle thread fixes the starting point T of the next cell C22 after creating "black" of the cell C23. Then, it is determined whether the information in the cell C22 is "black" or "white". Since the information is "white", the upper thread is cut at the starting point T. Then, the cell is moved to the starting point U of the next cell C12 and fixed, and it is determined whether the information of the cell C12 is "black" or "white". Since the information is "white", the starting point U
Cut the upper thread with. This fixed point U is displayed as "white" information as a result of the fact that the sewing machine needle descends and the lower thread is entangled, but since the upper thread is cut, only a few threads exist.

As described above, when the two-dimensional code is created by this method, the information can be created for each cell, so that the information that has a complicated pattern can be created easily and at least the starting point of each cell is fixed. By the information "white"
Even when the upper thread is continuous, the distance between the fixed points of the upper thread is the cell unit length (ΔL1), and it is possible to prevent the upper thread from being caught by something and cut, so that accurate information can be displayed. Become. Unlike the above, the upper thread is cut at the end point position of each cell (H of cell C11, Q of C31), that is, the upper thread is cut at the start point and end point of each cell, and each cell is configured. It goes without saying that you can do it.

(Seventh Embodiment) Next, as shown in FIG.
(A)) is prepared by cutting the upper thread (information thread) when the cell C has "white" information, but the accuracy of the reading device (not shown) and the "black and white" information decoding Depending on the method, even if one (or two) upper threads are formed at the end of the cell for a cell displaying "white", it can be identified as "white". Therefore, FIG. 7B shows the same information as in FIG. 7A, but shows a method in which the upper thread is not cut at the fixing points I, T and U. 20
Y and 20z are formed. This method is a two-dimensional code that does not cut the upper thread when creating the information of each cell C, that is, the information of each cell C can be displayed with a single stroke, and that represents a complicated black-and-white information pattern. Also, since the sewing machine can be sequentially manufactured from the corners and the cutting operation is not required, the sewing machine can be controlled very easily.

When the cells C11, C21, ... Are completed, one cell is made of four needle threads, so that the start point and end point of the cell are on the same side, but the cell moves to the cell Cn2 on the right. In some cases, it may be created on the assumption that a cell (white) is present in a dummy part (a part other than the cell) such as cloth, and the right side of the cell Cn2 is used as a starting point. Hereinafter, similarly, each cell may be created while sequentially shifting to the right column, and even a two-dimensional code having a complicated pattern can be easily created.

(Eighth Embodiment) Next, FIG. 7C
Is cell C11 (black), cell C21 (white), cell C31 (black)
This is a method of forming a small number of fixed points when creating. More specifically, since the cell C11 is "black", the starting point A is fixed and the cloth or the like is horizontally moved to the fixed point B to create the upper thread 21a. And from the fixed point B,
The cloth or the like is moved horizontally and vertically to a fixed point C, and the needle thread 21b from the fixed points B to C is inclined, but this is possible as an information display. Hereinafter, the information "black" is displayed by the four upper threads (21a to 21d) by making the fixed point C to the fixed point D horizontal and the fixed point D to the fixed point E inclined. The number of fixed points is 5 (AE) compared to 8 (AH) in FIG. 7A, and the two-dimensional code can be created more quickly. This creation method (Fig. 7)
(C)) is created without cutting the upper thread, but it can also be created by cutting the upper thread as shown in FIG. 7 (A).

(Ninth Embodiment) Next, the two-dimensional code created by the above-mentioned sewing machine is created for each cell unit, but the distance of the fixed point of the needle thread is, for example, 2 cells. If the number of yarns is acceptable, as shown in FIG. 7D, for example, four cells are created as one block. In this way, one block is divided into four cells (cell C
11, C21, C12, C22) are sequentially constructed, and four upper threads in the longitudinal direction display "black" information to create a binary code for each block.

The cell information includes cells C11 and C21, and cell C12.
And it is assumed that it is created in a rectangular shape of 22 and specifically,
First, A of cell C11 is set as a fixed point. Since the information of C11 is "black" and the cell C21 is "white", the cloth or the like is moved from the fixed point A to the fixed point B. Then, the information of the cells C11 and C21 is sequentially created as the fixed points C to H. Next, the remaining blocks, cell C12 and cell C22, are both "white".
Therefore, the next blocks are cells C13 (black) and C23.
Creation of (black) and cells C14 (black) and C24 (white) is started. The fixed point H is moved to the fixed point I to fix the starting point of the block. And cells C13 (black), C23 (black)
By creating the fixed points J to X based on the information of the cells C14 (black) and C24 (white), four needle threads (information threads) are sewn to the cells displaying "black". Less than,
Similarly, cell information is displayed for each adjacent block.

As described above, when the distance between the fixed points of the upper thread (information thread) does not get caught due to something being caught, the information of each cell is created with an arbitrary number of cells as a block unit. In this case, as compared with the method of creating each cell, the fixed number is smaller and the creation can be done quickly. The method shown in FIG. 7 (D) is to continuously create the upper thread (information thread), but as shown in FIG. 7 (A),
If the start point of the block is fixed and the block information is "white", the block may be cut at that position, or the fixing method as shown in FIG. 7 (C). May be.

In the method for creating a two-dimensional code by the above-mentioned sewing machine, the number of needle threads (information threads) for displaying information of one cell depends on the movement accuracy of the sewing machine, the thickness of the needle thread, the camera accuracy, and the like. It is needless to say that the selection depends on these factors because it depends on them. The sewing machine method is preferably a method of fixing the starting point of each cell, but it is necessary to fix the starting point of the next cell depending on the thickness and number of the upper thread (information thread) of each cell. Of course, it goes without saying that a plan may be created for each cell (cutting the upper thread at the cell start point and cell end point). In this case, it is determined whether the next cell information is "black" or "white", and if it is "black", it is created from the start point and "white" is created.
If so, skip this cell and create the next cell.

(Tenth Embodiment) Next, FIG. 8 shows a method of forming a one-dimensional code 30 on a cloth 5 or the like with an upper thread (also referred to as information thread) and a lower thread through a sewing machine. It will be described with reference to FIG. The upper thread (information thread) 33 is of a color that can be distinguished from the color of the cloth 5 by the camera. The one-dimensional code 30 is composed of a thick bar 30a, a thin bar 30b, and a blank 30c. When this one-dimensional code is created on the cloth 5 by a sewing machine, the thick bar 30a and the thin bar 30 are used.
There is also a method in which b is laterally moved through the cloth 5 or the like to form fixed points on both sides, and the upper yarn is formed while sequentially moving downward. However, in the present invention, as illustrated (conceptual diagram), the fixed points A, B, C, ...
3) Fabricate the cloth 5 etc. in the lateral direction while forming fixed points for each.

In this way, when the one-dimensional code is created, the bar is slightly missing at each of the fixed points A, B, C ... However, the bar is not erroneously read due to the missing, and one side of the needle thread 33 ( The length on the front or back side is the unit length (ΔL
Since it is formed in 3), it is possible to prevent the upper thread (information thread) from being cut by being caught on something, which prevents the loss of information, and the side edges of the thick and thin bars are
Since only a small number of fixed points are formed, the fixed points are formed by a substantially straight upper thread, and a reading error can be reduced in relation to a blank.

When a one-dimensional code or a two-dimensional code is created by the loom system and the sewing machine method, the information yarns (the transverse information yarn and the longitudinal information yarn in the loom system, the upper yarn in the sewing machine system) are other information yarns, etc. A camera (CCD
It is only necessary to use a color that can be identified by “etc.”, and it is not limited to “black” and “white”. By using a thread containing a fluorescent material as the information thread, it can be identified through ultraviolet irradiation. Therefore, as the information thread, a thread of the same color as the lower thread or the cloth can be used. In addition, a shape memory alloy or resin can be used for the information thread, so that even if the cloth shrinks after washing, the information at room temperature can be accurately displayed, and if a metal is used for the information thread, it does not become colored even when dyed. Therefore, it can be created as an identification mark of the cloth before and after dyeing.

(Eleventh Embodiment) Next, a reading device (CCD camera) different from the above will be described. When reading a two-dimensional code created by a loom system or a sewing machine with a CCD camera, defocus (blurred),
It is desirable to map it. The CCD camera is shown in Figure 9.
As shown in (A), the light source 41 irradiates the inside of the main body case 40, and the object 45 is transferred to the CCD sensor 4 through the lens 42.
Mapped through 3. The distance between the CCD sensor 43 and the lens 42 is Lx, and the lens 42 and the reading port 4 of the main body case
Let the distance of 0a be LY.

In this CCD camera, the object (two-dimensional code) 45 is normally focused and imaged. In such a state, the two-dimensional code created by the information thread of the present invention is imaged and analyzed. Then, “white” and “black” are accurately read, and a lot of processing may be required for analysis in order to obtain information (black or white) of each cell. In particular, information on "white" and "black" at the boundary between cells (cross points between the horizontal information thread efgh and the vertical control thread d in FIG. 2), or
Horizontal information threads (abc, ...) And horizontal fixed threads (a'b'c '...)
When weaving alternately, (FIG. 5), the upper threads 20x, 20y, 20z in the sewing machine method (FIG. 7 (B))
Found that if the discrimination between "white" and "black" was reduced, they could be easily discriminated. That is, the two-dimensional code according to the present invention can be imaged by slightly defocusing the CCD camera and reading it by the conventional reading device.

Therefore, as shown in FIG. 9 (B), the distance between the lens 42 and the reading port 40a of the main body 40A is set as shown in FIG. 9 (A).
There is a method of forming the main body 40B longer (La> LY) than that of the main body 40, and a method of forming the main body 40B short (Lb <LY) as shown in FIG. 9C. Thus, when the main body 40A, 40B of the conventional reading device is formed and read, the object 45 is imaged in a defocused state,
Reduces the sensitivity of “white” and “black”, making it easier to use “white”,
I was able to identify "black". When reading the one-dimensional or two-dimensional code of the present invention, the main body 40A or 40B may be configured, but the code written on paper or the like is preferably read in a focused state. Therefore, it is desirable to adopt the main body 40B, because if the main body 40B is formed to be short, the reading can be performed by separating the reading port 40a of the main body 40B.

[0053]

According to the present invention, since a two-dimensional code can be created on various kinds of fabrics, it is very useful for information transmission (processing) such as a manufacturing process and a distribution route, and various unprecedented management becomes easy. Produce an effect. In addition, since the two-dimensional code in which the information thread is fixed for each cell unit or each block can be created, the loss of cell information is prevented.

[Brief description of the drawings]

FIG. 1 is a two-dimensional code and its enlarged view.

FIG. 2 is a conceptual diagram of a first embodiment for creating a two-dimensional code by a loom system.

FIG. 3 is a conceptual diagram of a second embodiment for creating a two-dimensional code by a loom system.

FIG. 4 is a conceptual diagram of a third embodiment for creating a two-dimensional code by a loom system.

FIG. 5 is a conceptual diagram of a fourth embodiment for creating a two-dimensional code by a loom system.

FIG. 6 is a conceptual diagram of a fifth embodiment for creating a one-dimensional code by a loom system.

FIG. 7: Sixth to ninth methods for creating a two-dimensional code by a sewing machine method
It is a conceptual diagram of the embodiment of.

FIG. 8 is a conceptual diagram of a tenth embodiment for creating a one-dimensional code by a sewing machine method.

FIG. 9 is a conceptual diagram of a reading device according to an eleventh embodiment.

[Explanation of symbols]

 1 Two-dimensional code 10 Warp thread (information thread, control thread, fixed thread) 11 Weft thread (information thread, control thread, fixed thread) 20, 21 Upper thread (information thread) 33 Upper thread (information thread) C cell

Claims (10)

[Claims] 1. When creating a two-dimensional code composed of a plurality of cells on a cloth or the like, a two-dimensional code is created for each cell unit or each block with an information thread of a color that can be identified by a camera. How to create. 2. When a two-dimensional code composed of a plurality of cells is formed on a cloth or the like while weaving a two-dimensional code with a vertical information thread and a horizontal information thread, the vertical information thread and the horizontal information thread of a color identifiable by a camera are used. , Adopts a vertical control thread that can be distinguished from a horizontal information thread,
A two-dimensional code is created while selecting a fixed point by selecting either the front side or the back side of the warp control yarn according to the cell information on the left and right sides of the warp control yarn, depending on the cell information of the warp control yarn. The method for creating a two-dimensional code according to claim 1. 3. The method for creating a two-dimensional code according to claim 2, wherein a fixed point of the warp information thread and the warp control thread is created by using a weft control thread of a color that can be distinguished from the weft information thread. 4. A horizontal fixing thread of a color distinguishable from the horizontal information thread is adopted, the horizontal fixing thread is woven with the warp thread, and the horizontal information thread is formed between the fixing thread and the fixing thread while forming a fixing point. The two-dimensional code creating method according to claim 2, wherein the two-dimensional code is created based on the cell information. 5. When creating a one-dimensional code on a fabric or the like while weaving a one-dimensional code with a weft information thread and a weft fixing thread, a warp fixing thread, a warp information thread, and a warp control thread, the color of the weft information thread is different from the color of other threads. A fixed point is created by selecting a color identifiable by a camera and weaving a horizontal information thread and a horizontal fixed thread on the front side of the warp information thread and on the back side of the vertical control thread. How to create a one-dimensional code. 6. The method for producing a one-dimensional code according to claim 7, wherein the warp control yarn is a yarn having the same color as the weft information yarn. 7. When a two-dimensional code composed of a plurality of cells is sewn on a cloth or the like with a sewing machine, a needle thread (information thread) for the cloth or the like that can be identified by a camera is used, and at least the starting point of each cell or block is used. The two-dimensional code creating method according to claim 1, wherein the two-dimensional code is created so as to be fixed. 8. When creating a one-dimensional code on a cloth or the like with a sewing machine, the one-dimensional code is created in a vertical direction with an information thread identifiable by a camera, based on a unit length. How to make. 9. The method for producing a two-dimensional or one-dimensional code according to claim 1, wherein the transverse information yarn is a yarn containing a fluorescent material. 10. A reading device having a lens and a camera for reading a one-dimensional code or a two-dimensional code created on cloth or the like, wherein the one-dimensional or two-dimensional code is read while the lens is out of focus. Characteristic reading device.