CN117124749A

CN117124749A - Method for expressing selected information, prefabricated printing medium, printing device, label and identification device

Info

Publication number: CN117124749A
Application number: CN202311132486.XA
Authority: CN
Inventors: 请求不公布姓名
Original assignee: Xiamen Hanyin Electronic Technology Co Ltd
Current assignee: Xiamen Hanyin Electronic Technology Co Ltd
Priority date: 2023-09-04
Filing date: 2023-09-04
Publication date: 2023-11-28

Abstract

The application discloses a method for expressing selected information, a prefabricated printing medium, a printing device, a label and an identification device. Wherein the method of expressing the selected information includes performing monochromatic printing on the prefabricated printing medium to cause the printing color to cover other color areas than the selected color area; at least two color areas for expressing the identification information are arranged on the prefabricated printing medium; the color of each color region is different from the companion color around its perimeter and the colors of the color regions are different from each other; the prefabricated printing medium is a printing medium for realizing a method for expressing the selected information, the printing device is used for realizing a method for expressing the selected information, the label is a product of the method for expressing the selected information, and the identification device is used for identifying the selected information on the label. By adopting the technical scheme, the selected identification information can be expressed with lower cost for human eyes to quickly capture, identify and memorize, and meanwhile, the machine identification can be facilitated, and the false identification rate of the machine identification is reduced.

Description

Method for expressing selected information, prefabricated printing medium, printing device, label and identification device

Technical Field

The present application relates to the field of information expression and identification, and in particular to a method for expressing selected information, a prefabricated printing medium, a printing device, a label and an identification device.

Background

In the prior art, information can be classified into identification information and complex information based on human visual cognition and reaction ability. The identification information is information which needs quick capture, quick cognition, quick response and convenient memory of human beings, and the complex information has large information quantity and low requirements on the capture, cognition and response speed of human beings. Identification information is typically used to distinguish between the urgency of a thing (e.g., classification of emergency patients by a hospital), different response behaviors that a person is required to make (e.g., driving behavior in traffic), classification of a thing (e.g., class of books), different sources (e.g., taxi companies in certain cities), or different areas (e.g., different areas in certain parking lots). Humans are the product of evolution, vision is the primary means by which humans acquire information, and capture, cognition, and response to visual expression are constrained by the natural laws associated with biology and cognitive neurology. Among them, the expression of identification information in color is most efficient and scientific. The color expression of the identification information is widely applied, such as emergency classification of hospitals, traffic lights, classification of books, leasing of car bodies and upright posts in related areas of parking lots, often uses colors to express the identification information, and is beneficial to rapid capturing and recognition and memory. And complex information is mainly expressed by patterns or characters.

With the development of machine vision technology, machines can also perceive images and restore information. For colors, the machine may discretize and digitize the colors, for example with RGB gray values, which may range from 0 to 255, i.e. each primary color may be divided into 256 steps, i.e. each pixel is assigned one of 256 x 256 values. However, in the field of machine recognition, recognition of all colors brings about a larger calculation amount and a slower calculation speed, so that in some fields requiring machine miniaturization, particularly hand-held, it is common to restore all colors to black-and-white gray values, which not only increases the calculation speed, but also reduces the cost due to the use of a black-and-white camera. When using black and white gray values, based on the same principle, the fewer gray levels are more favorable for quick operation, the more favorable the 16 black and white gray levels are for quick operation than the 256 black and white gray levels, and the more favorable the operation is for only 2 gray levels (for example, only two colors in black and white) than the 16 black and white gray levels, for example, most bar codes or two-dimensional codes are black-in-white.

However, color information that is convenient for humans to quickly capture, recognize and memorize is more unfavorable for machine recognition as the black-and-white gray scale is lower. This is because some human eyes can distinguish colors, and when the black and white gray scale is low, the black and white gray scale values can be close or even the same, which can cause a high false recognition rate of the machine. Therefore, in the present age, new expression of identification information is developed, and the requirements of fast capturing, identifying and memorizing by human eyes and reducing the error rate of machines are urgent.

The prior art has a method for expressing information which is mainly used for expressing complex information and secondarily also capable of expressing identification information. The dot group is printed on the background color of the prefabricated printing medium in advance, each dot in the dot group is formed by combining three primary colors or a plurality of other colors, when complex information is required to be expressed by patterns and/or characters, and identification information is also expressed, the dot group is printed in a single color, and unnecessary dots in the dot group are covered by adopting printing colors which are the same as or similar to the background color, and meanwhile, unnecessary colors in the dots which need to be reserved are covered, so that the patterns and/or characters formed by single colors are formed. The advantage of such a technique is that selected colors can be displayed by monochrome printing, thereby reducing the difficulty and cost of expressing selected identification information in the field; however, for the foregoing reasons, such color-expressed identification information is not only slow to calculate, costly, unfavorable to handholding, but also high in error rate when the machine is used for identification.

In addition, to facilitate understanding of the related art of this patent, background art related to printing and machine vision is also presented.

In the field of printing, the related art has been able to locate a print start point of content to be printed by identifying a specific portion of an outer contour of a printing medium or a print positioning mark for print positioning. In the prior art, for print media of indefinite length (e.g., paper rolls), the print media has been cut to a desired length by cutting.

In the field of machine vision, the prior art has been able to identify the outline of a print medium or edges of specific patterns, text by edge algorithms. In the prior art, patterns (such as corner marks of two-dimensional codes) can be positioned and identified through specific identification positioning marks in images.

These techniques, as well known to those skilled in the art, are not described in detail.

Disclosure of Invention

The application aims to overcome the defects or problems in the background art and provide a method for expressing selected information, a prefabricated printing medium, a printing device, a label and a recognition device, which can express the selected recognition information for human eyes to capture, recognize and memorize quickly at a lower cost, and simultaneously can be beneficial to machine recognition and reduce the false recognition rate of the machine recognition.

In order to achieve the above purpose, the following technical scheme is adopted:

a first technical aspect relates to a method of expressing selected information by performing monochromatic printing on a prefabricated print medium such that a print color covers a color area other than a selected color area; at least two color areas for expressing identification information are arranged on the prefabricated printing medium; the color of each of said color zones being distinguishable from the accompanying color around its periphery and the colors of each of said color zones being distinguishable from each other; the selected color area is a color area for expressing selected information, which is selected identification information among the identification information; the printing color is different from the color of each color area and is different from the accompanying color of each color area; the black-and-white gray value of the print color is different from the black-and-white gray value of the color of each of the color regions and from the black-and-white gray value of the companion color of each of the color regions.

A second technical solution is based on the first technical solution, wherein the black-and-white gray value of the printing color is significantly different from the black-and-white gray value of the color of each of the color areas and from the black-and-white gray value of the accompanying color of each of the color areas.

The third technical scheme is based on the first technical scheme, wherein the prefabricated printing medium is further provided with a printing positioning mark for printing positioning, the printing positioning mark is not overlapped with each color area, and the color of the printing positioning mark is printing color.

A fourth technical means is the printing apparatus of the first technical means, wherein the identification positioning mark is printed in a printing color when the pre-made printing medium is subjected to monochromatic printing, and the identification positioning mark does not overlap with each of the color areas.

A fifth technical means is the printing apparatus of the first technical means, wherein each of the color areas has a different shape, and a covering sub-area formed by covering each other color area except the selected color area with a printing color is adapted to the shape of the color area when the prefabricated printing medium is subjected to monochrome printing.

A sixth technical means relates to a prefabricated printing medium provided with at least two color areas for expressing identification information, each of the color areas being different in color from a companion color around a periphery thereof and the colors of the color areas being different from each other; each of the color regions extends along a length of the pre-formed print medium.

A seventh technical means is based on the sixth technical means, wherein the pre-made printing medium includes a release paper base material adapted to be wound and release paper attached to the release paper base material, and a length direction of the pre-made printing medium is the same as a winding direction in which the pre-made printing medium can be wound; the number of the release papers attached to the release paper base material is one or more, and the color area is positioned on the release paper.

An eighth technical means is the printing apparatus of the sixth or seventh technical means, wherein the prefabricated printing medium is provided with identification information expression areas on both sides in a width direction, each color area is provided with color sub-areas on both identification information expression areas, and each color sub-area extends in a length direction of the prefabricated printing medium.

A ninth technical means is based on the eighth technical means, wherein each of the color subregions is abutted against each other, and at least part of the color subregions is color-accompanied with other color subregions.

A tenth technical means relates to a printing apparatus for performing monochromatic printing on a prefabricated printing medium, the prefabricated printing medium being provided with at least two color areas for expressing identification information, each of the color areas being different in color from a companion color around a periphery thereof and the colors of the color areas being different from each other; the printing apparatus includes: an input module for acquiring selected information, the selected information being selected one of the identification information; and a printing module for performing monochromatic printing on the prefabricated printing medium so that a printing color covers other color areas except for a selected color area, wherein the selected color area is a color area for expressing selected information, the printing color is different from the color of each color area and is different from the accompanying color of each color area, and the black-and-white gray value of the printing color is different from the black-and-white gray value of the color of each color area and is different from the black-and-white gray value of the accompanying color of each color area.

An eleventh technical means is based on the tenth technical means, wherein the printing module includes: a storage unit that stores print positioning data including a relative position of each of the color areas with respect to a print reference portion as a print positioning reference and a coverage of each of the color areas; a positioning unit for positioning the printing reference portion; and a printing unit that performs monochrome printing according to the print positioning data acquired from the storage unit after the positioning unit is positioned to the print reference portion so that a print color covers a color area other than the selected color area.

A twelfth technical means is based on the eleventh technical means, wherein the storage unit further stores identification positioning mark printing data including a relative position of the identification positioning mark to be printed with respect to the printing reference portion and a printing range of the identification positioning mark, the identification positioning mark printing data further ensuring that the identification positioning mark does not overlap each of the color areas after being printed on a pre-made printing medium; the printing unit also performs monochromatic printing according to the identification positioning mark printing data acquired from the storage unit after the positioning unit positions the printing reference portion, and forms the identification positioning mark.

A thirteenth aspect is based on any one of the tenth to twelfth aspects, wherein the input module is further configured to obtain complex information; the printing module is also used for printing patterns and/or characters for expressing the complex information on the prefabricated printing medium, wherein the patterns and/or characters are not overlapped with each color area.

A fourteenth technical means relates to a tag manufactured by the method for expressing selected information as set forth in any one of the first to fourth technical means.

A fifteenth aspect relates to a label produced by the method for expressing selected information as set forth in the third or fourth aspect, the printed positioning mark or the identification positioning mark enveloping each of the color areas.

A sixteenth technical means is directed to the tag, wherein the tag is made by the method for expressing the selected information as set forth in the fifth technical means.

A seventeenth technical means is directed to the identification means for identifying the selected information expressed by the tag of the fourteenth technical means, comprising: an image acquisition module for acquiring an image of the tag; the image resolution module is used for resolving an identification reference part and a coverage area in the image, wherein the identification reference part is an outer contour of the label, a specific part of the outer contour, a printing positioning mark or an identification positioning mark, and the coverage area is an area formed by covering all other color areas except a selected color area by printing color in the process of manufacturing the label; and the information identification module is used for judging whether the image meets the identification condition or not, and identifying the selected information according to the relative position of the coverage area and the identification reference part when the identification condition is met, wherein the identification condition is that the image has the identification reference part and the coverage area is complete.

An eighteenth technical means is the identification device for identifying the selected information expressed by the tag of the fifteenth technical means, comprising: an image acquisition module for acquiring an image of the tag; the image resolution module is used for resolving an identification reference part and a coverage area in the image, wherein the identification reference part is a printing positioning mark or an identification positioning mark of the label, and the coverage area is an area formed by covering all other color areas except a selected color area by printing colors in the process of manufacturing the label; and the information identification module is used for judging whether the image meets the identification condition or not, and identifying the selected information according to the relative position of the coverage area and the identification reference part when the identification condition is met, wherein the identification condition is that the shape of the identification reference part in the image is complete.

A nineteenth technical means is the tag device of the sixteenth technical means, comprising: an image acquisition module for acquiring an image of the tag; an image resolution module for resolving a coverage sub-area in the image; and the information identification module is used for judging whether the image meets the identification condition or not, and identifying the selected information according to the shape of each coverage sub-area when the identification condition is met, wherein the identification condition is that all the coverage sub-areas are on the image.

A twentieth aspect is based on any one of the seventeenth to nineteenth aspects, further comprising a prompt module for outputting a prompt in a manner that is visually perceptible and/or aurally perceptible; and the information identification module also controls the prompt module to output prompts and controls the image acquisition module to acquire the image of the tag again when the identification condition is not met.

Compared with the prior art, the technical scheme has the following beneficial effects:

in the first embodiment, "the color of the color region is distinguished from the accompanying color around the periphery thereof and the colors of the color regions are distinguished from each other" means "distinguishing" in "that it can be distinguished by human eyes.

In the first aspect, "the print color is different from the color of each of the color areas and is different from the accompanying color of each of the color areas" means "the difference" that can be recognized by human eyes.

In the first aspect, "the black-and-white gradation value of the print color is different from the black-and-white gradation value of the color of each of the color areas and different from the black-and-white gradation value of the accompanying color of each of the color areas" means "the difference" in "being able to be distinguished by machine vision".

In the first technical scheme, the color area is used for expressing the identification information, and human eyes can quickly capture, identify and memorize the identification information. The selected color area is reserved by covering other color areas except the selected color area by printing color, and the selected color area is used for expressing the selected information, so that the selected identification information can be expressed for the human eyes to quickly capture, identify and memorize.

In the first technical solution, the selected color area expresses the selected information by monochromatic printing on site, so that the cost of displaying the selected information is low compared to a solution in which multicolor printing is deployed on site. It should be noted that not only the use of a monochrome printer can effectively reduce the equipment cost and the use cost, but also the use cost can be greatly reduced even in the case of using only a monochrome printer.

In the first technical solution, since the printing color covers other color areas than the selected color area, and the black-and-white gray value of the printing color is different from the black-and-white gray value of the color of each color area and also different from the black-and-white gray value of the co-lining color of each color area, the machine vision can easily recognize the covered area (the area formed by the printing color covering all other color areas than the selected color area) formed by the single printing color, and can determine the selected information to be expressed by the uncovered selected color area by inversion. Therefore, the method for expressing the selected information in the first technical scheme is beneficial to machine identification, improves the calculation speed of the machine identification, reduces the false recognition rate of the machine identification, and can reduce the equipment cost by using a cheaper black-and-white camera and the like.

In the first technical solution, although the coverage area formed by the printed color forms a certain visual disturbance to the selected color area, because the color area is used, the area for representing the color is correspondingly much larger than the area of the dot or the pixel, and the human eye can still easily identify the selected information.

In the second technical solution, "the black-and-white gray values of the printing colors are obviously different from the black-and-white gray values of the colors of the color areas and are obviously different from the black-and-white gray values of the accompanying colors of the color areas" means that the black-and-white gray values differ by at least 2 when the black-and-white gray scale uses 16 gray scales, and correspondingly, the black-and-white gray values differ by at least 32 when the black-and-white gray scale uses 256 gray scales. By adopting the technical scheme, the false recognition rate of machine recognition can be further reduced.

In a third technical scheme, the prefabricated printing medium is provided with a printing positioning mark for printing positioning, which is favorable for accurately positioning the coverage area of printing colors. The print registration mark color is a print color, so that the print registration mark can also be used as a recognition reference to determine the relative position of the overlay area when the selected information is recognized by machine vision, which is advantageous for the machine vision to recognize the selected information.

In the fourth aspect, the identification positioning mark can be used as an identification reference portion to determine the relative position of the coverage area when identifying the selected information, which is advantageous for machine vision to identify the selected information.

In the fifth technical scheme, each color area has different shapes, and the corresponding coverage sub-areas of the printing colors form the adaptation, so that the covered color areas can be determined directly by distinguishing the shapes of the coverage sub-areas, further the selected color areas can be inverted, and the selected information can be identified.

The prefabricated printing medium in the sixth technical scheme expresses the identification information through the color area, and is more beneficial to the human eyes to capture, identify and memorize rapidly. Compared with the prior art, the technical scheme that dot groups are printed on the background color of the prefabricated printing medium in advance, each dot in the dot groups is provided with three primary colors or a plurality of other colors, and the dot groups are mainly distinguished, wherein one of the dot groups can form color blocks, and the dot groups have stronger visual impact to human eyes; secondly, the prior art scheme can only adopt the printing color which is the same as or similar to the background color to cover the unnecessary points in the point group, and simultaneously cover the unnecessary colors in the points which need to be reserved, thereby forming patterns and/or characters formed by single color.

In the sixth technical scheme, each color area extends along the length direction of the prefabricated printing medium, which is beneficial to printing color areas in a continuous printing mode when manufacturing the prefabricated printing medium, especially longer prefabricated printing medium, and the problem that the subsequent covering effect is poor due to inaccurate cutting positions of labels when single-color printing is performed due to the interval printing mode printing color areas is avoided. Meanwhile, after monochromatic printing is carried out on the prefabricated printing medium, the prefabricated printing medium can adapt to different label lengths, namely the label length can be changed according to the needs, and the color area to be covered can still be effectively covered.

In the seventh technical scheme, the prefabricated printing medium comprises a release paper base material suitable for being wound and release paper attached to the release paper base material, the length direction of the prefabricated printing medium is the same as the winding direction, one or more release papers with color areas can be arranged on one release paper base material, the prefabricated printing medium is conveniently stored in a paper bin of the printing device, the prefabricated printing medium is not required to be sent into the printing device every time when being printed, the operation is simpler, and the miniaturization and even the handholding of the printing device are facilitated. In addition, when a release paper is arranged on a release paper base material, as each color area extends along the length direction of the prefabricated printing medium, the printing of labels with indefinite length can be supported, namely, the labels can be selected in length according to the requirement, and the color areas needing to be covered can be effectively covered.

In the eighth technical scheme, the two sides of the prefabricated printing medium along the width direction are provided with the identification information expression areas, which is not only beneficial to the machine to identify the labels more conveniently (the forward direction and the reverse direction have consistency), but also can express complex information between the two identification information expression areas in the form of patterns and/or characters, so that the labels can bear more functions.

In the ninth technical solution, the color sub-areas are attached to each other, and the occupied area of the identification information expression area is reduced while the area of each color area is ensured.

In the tenth technical aspect, the input module obtains the selected information, and the printing module covers the other color areas except the selected color area based on the selected information, so that the printing device can implement the method for expressing the selected information in the first technical aspect, thereby having the technical effects of the first technical aspect.

In the eleventh technical solution, the storage unit stores the print positioning data, so that an operator does not need to input the position and the range of the coverage area at the same time when using the input module to input or select the selected information, thereby facilitating the man-machine interaction of the printing device to be simpler and faster. The printing reference part can be used as a printing positioning reference, and can be a specific part of the outer contour of the prefabricated printing medium, a printing positioning mark on the prefabricated printing medium, or a specific part of the outer contour of each unit (such as release paper) on the prefabricated printing medium.

The twelfth technical solution is to implement printing of the identification positioning mark, wherein, since the storage unit stores the printing positioning data and the identification positioning mark printing data at the same time, the relative position between the identification positioning mark and the coverage area can be made more accurate.

In the thirteenth technical solution, the printing apparatus further obtains the complex information and prints the complex information through patterns and/or characters, so that the printed label can carry more information.

The label according to the fourteenth aspect is produced according to any one of the first to fourth aspects, and therefore has a corresponding technical effect.

The label according to the fifteenth aspect is produced according to any one of the third to fourth aspects, and therefore has a corresponding technical effect. Meanwhile, the printing positioning mark or the identification positioning mark envelops various color areas, so that the integrity of the coverage area can be estimated by determining that the shape of the printing positioning mark or the identification positioning mark is complete. The "envelope" refers to any enclosing mode which can realize printing of the positioning mark or identifying of the positioning mark as long as the shape is complete, and the covered area is necessarily complete, including full enclosing, half enclosing and the like.

The label according to the sixteenth aspect is produced according to the fifth aspect, and therefore has a corresponding technical effect.

The "complete coverage area" in the seventeenth aspect means that when the coverage area includes sub-coverage areas spaced apart from each other for correspondingly covering the area, all the sub-coverage areas are located on the image or when the coverage area covers all the color areas that should be covered with one area, the shape of the area is complete.

In the seventeenth technical solution, the identifying device can identify the position of the coverage area relative to the identification reference portion, thereby determining the color area covered by the coverage area, and inverting the selected color area, thereby identifying the selected information, and effectively utilizing the characteristic that the coverage area is covered by a single printing color, so that the machine is easier to distinguish and identify.

The eighteenth technical means has the same technical effects as the fifteenth technical means.

The nineteenth technical solution identifies the covered color area by identifying the shape of the covered sub-area, and then inverts the selected color area, thereby identifying the pending information, reducing the complexity of machine vision identification relative to a solution using an identification reference as a location reference for the covered area.

According to the twentieth technical scheme, when the recognition condition is found to be unable to be met, a prompt which can be perceived visually and/or audibly is output, so that an operator can change the position or posture of the tag relative to the recognition device, and finally, the selected information can be effectively recognized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments, the following brief description of the drawings is provided, in which:

FIG. 1 is a schematic view showing a developed state of a prefabricated printing medium in a first embodiment;

FIG. 2 is a schematic diagram of a printing apparatus according to a first embodiment;

FIG. 3 is a schematic diagram of a tag in a first embodiment;

FIG. 4 is a schematic diagram of an identification device according to a first embodiment;

FIG. 5 is a schematic diagram of an identification method in a first embodiment;

FIG. 6 is a schematic diagram showing a developed state of a prefabricated print medium in the second embodiment;

FIG. 7 is a schematic diagram of a label in a second embodiment;

FIG. 8 is a schematic view of a prefabricated print medium in embodiment three;

FIG. 9 is a schematic diagram of a label in embodiment three;

FIG. 10 is a schematic view of a prefabricated print medium in embodiment four;

FIG. 11 is a schematic diagram of a label in a fourth embodiment;

FIG. 12 is a schematic view of a prefabricated print medium in embodiment five;

fig. 13 is a schematic diagram of a label in embodiment five.

The main reference numerals illustrate:

1. prefabricating a printing medium; 2. a release paper substrate; 3. release paper; 4. identifying an information expression area; 5. a complex information expression region; 6. a color subregion; 7. a color region; 8. a printing device; 9. an input module; 10. a printing module; 11. a storage unit; 12. a positioning unit; 13. a printing unit; 14. a label; 15. selecting a color area; 16. covering the sub-area; 17. a coverage area; 18. patterns and/or text; 19. an identification device; 20. an image acquisition module; 21. an image resolution module; 22. an information identification module; 23. a prompting module; 24. selecting an information identification method; 25. an image acquisition step; 26. an image resolution step; 27. judging; 28. an information identification step; 29. prompting; 30. printing a positioning mark; 31. identifying a positioning mark; A. and a length direction.

Detailed Description

In the claims and in the description, unless otherwise defined, the terms "first," "second," or "third," etc., are used for distinguishing between different objects and not for describing a particular sequential order.

In the claims and specification, unless otherwise defined, the terms "fixedly coupled" and "fixedly connected" are to be construed broadly as any manner of connection without a displacement relationship or relative rotational relationship therebetween, and that is to say include non-detachably fixedly connected, integrally connected, and fixedly connected by other means or elements.

In the claims and specification, unless otherwise defined, the terms "comprising," having, "and variations thereof mean" including but not limited to.

In the claims and the description, unless otherwise defined, the term "provided" means that the technical feature located thereafter is a part of the technical feature located before it.

In the claims and specification, unless otherwise defined, the term "machine vision" or "machine recognition" refers to a process of determining information contained in an image by acquiring the image and performing digital discrete processing on the image.

In the claims and the description, unless otherwise defined, the term "identification information" refers to information that requires quick capture, quick cognition, quick response and easy memory by humans, which is generally used to distinguish between the urgency of things (e.g. classification of emergency patients by hospitals), different response actions that require humans to make (e.g. driving actions in traffic), classification of things (e.g. classification of books), different sources (e.g. taxi companies in certain cities) or different areas (e.g. different areas in certain parking lots). The identification information may be expressed in color or in a simple graphic, such as a traffic sign.

In the claims and specification, unless otherwise defined, the term "complex information" refers to information that is of great quantity and that is not highly required for human capture, cognition and response, and is generally expressed in patterns and/or words.

In the claims and specification, unless otherwise defined, the term "selected information" refers to identification information selected among a plurality of identification information.

In the claims and specification, unless otherwise defined, the term "pre-formed print medium" refers to a print medium containing color areas, which may be an elemental medium, a composite medium comprising a release paper substrate and release paper, or a thermally transparent film provided on the release paper for thermal printing.

In the claims and specification, unless otherwise defined, the term "monochrome printing" refers to printing with a monochrome printer, but also to printing with a multicolor printer, and can be regarded as monochrome printing as long as printing is performed using only one printing color in the printing process. The printing device capable of realizing monochromatic printing can be a thermal printer, a thermal transfer printer, an ink-jet printer or a laser printer.

In the claims and the description, unless otherwise defined, the term "colored region" refers to a region of color used to express identification information that can be distinguished from a companion color around its perimeter, and in general, can be represented as a color patch or bar in order to enable the human eye to be subjected to direct and intense color stimuli. The color here may be not only monochromatic, but also chromatic (e.g. gradient), and may even be the natural color of the pre-formed print medium, provided that it is distinguishable from the accompanying color, independently discernable. The color area may be a single area or may be composed of two or more color sub-areas, but the color sub-areas of each color area should have the same color, since the color area is an area having a color for expressing the identification information.

In the claims and the description, unless otherwise defined, the term "color sub-region" refers to sub-regions of one color region that are spatially separated from each other and have the same color.

In the claims and specification, unless otherwise defined, the term "selected color area" refers to a color area that is used to express selected information.

In the claims and the description, unless otherwise defined, the term "companion color" is a color around the perimeter of a color area, and the companion color may be a single color, may be a multiple color, or may be a color of other color areas.

In the claims and specification, unless otherwise defined, "black-and-white gray value" refers to a gray value of each color in black-and-white gray scale after an image is captured by a black-and-white camera, which is generally associated with the lightness of the color.

In the claims and the description, unless otherwise defined, the term "cover" is used as a verb to cover a portion of a color area with a printing color, and the cover may be either a complete cover or a partial cover. In the case of complete masking, the masking range may be equal to or greater than the range of the color region to be masked. The shape of the masking range need not be limited to fit the shape of the color area to be masked, unless otherwise defined. In the case of incomplete masking, the incomplete masking may be due to a misprint, or may be due to a bleeding boundary limitation during printing, or may be a partial boundary that is intentionally left as it is, as long as the masked color region is capable of making the human eye recognize that it is masked and distinguished from the unmasked selected color region. Also, it should be noted that "covering" is not necessarily formed by only printing behavior, but includes paper cutting behavior after printing is completed, as long as it is possible to achieve a color region that is masked after printing is completed so that human eyes recognize it as masked and distinguished from a selected color region that is not masked, specifically, a color region that needs to be covered during printing is not covered, but after paper cutting, a color region that needs to be covered but is not covered is cut out without outputting, and it should be considered that "covering" behavior is completed so that a color region that needs to be covered in an output label reaches the requirement of being covered. Again, "overlaying" may be accomplished by developing color in thermal printing or thermal transfer printing, i.e., by developing the print color, thereby effecting the print color masking of portions of the color area.

In the claims and the description, unless otherwise defined, the term "covered sub-area" is a sub-area of print colors that are spatially independent of each other corresponding to the color area or color sub-area that is covered.

In the claims and specification, unless otherwise defined, the term "coverage area" refers to an area formed by a printed color covering all other color areas than a selected color area, and the coverage area may include several coverage sub-areas or may be one continuous area.

In the claims and the specification, unless otherwise defined, the term "distinguish" in "the color of each color region is distinguished from the accompanying color around its periphery and the colors of the respective color regions are distinguished from each other" means to be distinguishable by the human eye.

In the claims and the specification, unless otherwise defined, the term "difference" in "print color is distinguished from the color of each color region and from the companion color of each color region" means that it can be recognized by the human eye.

In the claims and the specification, unless otherwise defined, the term "distinguish" in "black-and-white gray values of printing colors from black-and-white gray values of colors of respective color areas and from black-and-white gray values of co-colors of respective color areas" means that they can be distinguished by machine vision, specifically that black-and-white gray levels differ by at least 4 when 256 gray levels are used.

In the claims and the specification, unless otherwise defined, the obvious distinction in "black-and-white gradation value of a print color is significantly different from black-and-white gradation value of a color of each color region and significantly different from black-and-white gradation value of a companion color of each color region" means that the black-and-white gradation value differs by at least 2 when the black-and-white gradation uses 16 gradations, and correspondingly, the black-and-white gradation value differs by at least 32 when the black-and-white gradation uses 256 gradations.

In the claims and specification, unless otherwise defined, the term "print registration mark" refers to a pattern or symbol for performing print registration.

In the claims and specification, unless otherwise defined, the term "identifying locating marking" refers to a pattern or symbol that can be used as a recognition reference to determine the relative position of a coverage area when identifying selected information.

In the claims and specification, unless otherwise defined, the term "printing device" is a device capable of achieving monochromatic printing, and may be any device capable of achieving monochromatic printing, such as a thermal printer, a thermal transfer printer, an inkjet printer, or a laser printer.

In the claims and the description, unless otherwise defined, the term "printing reference portion" is used as a positioning reference for printing, and may be a specific portion of the outer contour of the prefabricated printing medium, a printing positioning mark on the prefabricated printing medium, or a specific portion of the outer contour of each unit (such as release paper) on the prefabricated printing medium.

In the claims and specification, unless otherwise defined, the term "envelope" refers to any manner of enclosure that enables printing of the locating marks or identifying the locating marks so long as the shape is complete, the area of coverage necessarily being complete, including full enclosure, half enclosure, and the like.

In the claims and the specification, unless otherwise defined, the term "identification reference portion" refers to a reference that can be used as an identification reference portion in identifying selected information to determine the relative position of a coverage area, which may be the outer contour of a label, a specific portion of the outer contour, a printed positioning mark, or an identification positioning mark.

The technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings.

Example 1

A scenario for an application of an embodiment is triage in an emergency room. It is known that when a patient enters an emergency room, a doctor needs to inquire about the condition of the patient and make preliminary observation, and after the preliminary inquiry and observation, the doctor can divide the patient into three types of emergency treatment, continuous attention and stable condition of the patient according to professional judgment, but the judgment is not suitable for directly informing the patient, so that a method for indicating the identification information may be needed, and only doctors and nurses in the emergency room can know the professional judgment, but the patient or family members cannot directly acquire the identification information. To achieve this, the solution of the present embodiment was developed.

Referring to fig. 1, fig. 1 shows an expanded state of a prefabricated printing medium 1 in the first embodiment. As shown in fig. 1, the prefabricated printing medium 1 includes a release paper base 2 adapted to be wound into a roll and a plurality of release papers 3 identical to each other attached to the release paper base (only two are shown in the figure, but there may be many in practice). The prefabricated printing medium 1 can be loaded into the paper holding chamber of the hand-held printer after being wound into a roll. The plurality of release papers 3 are arranged along the extending direction of the release paper base material 2, and the length direction a of the release paper base material 2, that is, the length direction a of the prefabricated printing medium 1, that is, the winding direction of the paper roll. The length direction a of each release paper 3 is the same as the length direction a of the release paper base 2. Each release paper 3 consists of a release paper body and a thermosensitive transparent film, wherein the thermosensitive transparent film covers the surface of the release paper body, which is away from the adhesive surface, and the surface of the release paper body, which is away from the adhesive surface, is provided with two identification information expression areas 4 and one complex information expression area 5. Wherein, the identification information expressing areas 4 are arranged on two sides along the width direction of the release paper 3 perpendicular to the length direction A for expressing the identification information. Each of the identification information expressing areas 4 extends in the longitudinal direction a of the release paper 3. The complex information expressing area 5 is provided between the two identification information expressing areas 4, and also extends in the length direction of the prefabricated print medium. The two identification information expressing areas 4 are each provided with three color sub-areas 6 which are abutted against each other, and the constitution of the color sub-areas 6 in the two identification information expressing areas 4 is mirror-symmetrical with respect to the center line of the prefabricated printing medium 1 in the width direction. Wherein, the color of the color subarea 6 at the innermost side of the three color subareas 6 is green, the color of the color subarea 6 at the outermost side is red, and the color of the color subarea 6 at the middle is yellow. The two color sub-areas 6 having the same color together constitute a color area 7, the color area 7 being used to express the identification information, specifically, the color area 7 having a green color being used to express the identification information meaning "patient condition stable", the color area 7 having a yellow color being used to express the identification information meaning "need for continuous attention", and the color area 7 having a red color being used to express the identification information meaning "need for urgent processing". As can be seen from fig. 1, the three color areas 7 each extend in the length direction a of the release paper 3. The color of the complex information expression area 5 is the natural color of the release paper 3, and in this embodiment, the natural color of the release paper 3 is white. For each color area 7, the color around its perimeter is defined as a companion color. As shown in fig. 1, the color areas 7 with green color are accompanied by white and yellow colors, the color areas 7 with yellow color are accompanied by red and green colors, and the color areas 7 with red color are accompanied by yellow color. Thus, it will be seen by those skilled in the art that the color of each color region 7 should be distinguishable from the accompanying color around its periphery, and that the colors of the individual color regions 7 should be distinguishable from each other.

Referring to fig. 2, fig. 2 shows a printing apparatus 8 in an embodiment. In this embodiment, the printing device 8 is a desktop thermal monochrome printer that is placed on a desktop of an emergency department setting site. The printing color of the printing apparatus 8 in the present embodiment is black. The printing apparatus 8 is used for performing monochrome printing on the prefabricated printing medium 1 in the present embodiment. As shown in fig. 2, the printing apparatus 8 includes an input module 9 and a printing module 10. The input module 9 is configured to obtain selected information and complex information, where the selected information is selected identification information in the identification information. The input module 9 may be used in various ways to obtain the selected information, for example, by manually selecting or simply inputting text on a graphical user interface on a touch screen of the printing apparatus 8, in which case the input module 9 is a touch screen of the printing apparatus 8. The printing module 10 is used for performing monochromatic printing on the prefabricated printing medium 1 so that the printing color covers other color areas except for the selected color area 15, wherein the selected color area 15 is the color area 7 for expressing the selected information. The printing color is black, the printing color is different from the color of each color area and is different from the accompanying color of each color area, and the black-and-white gray value of the printing color is also obviously different from the black-and-white gray value of the color of each color area and is different from the black-and-white gray value of the accompanying color of each color area. The printing module 10 is further configured to print a pattern and/or text for expressing the complex information on the prefabricated printing medium 1, and the pattern and/or text does not overlap with each color area 7, and in this embodiment, the pattern and/or text expressing the complex information is printed to the complex information expression area. In the present embodiment, the printing module 10 includes a storage unit 11, a positioning unit 12, a printing unit 13, and a paper cutting unit. The storage unit 11 is configured to store print positioning data including the relative position of each color area 7 with respect to a print reference portion as a print positioning reference, which functions as a positioning reference for printing, in this embodiment, a specific portion of the outer contour of the prefabricated print medium 1, specifically, the front end of the prefabricated print medium 1 in the print feeding direction, typically, on the release paper base 2, and the coverage of each color area. The positioning unit 12 is used to position the printing reference portion. The printing unit 13 performs monochrome printing based on the print positioning data acquired from the storage unit 11 after the positioning unit 12 has positioned the print reference portion so that the print color covers the other color area 7 than the selected color area 15. The paper cutting unit is used for cutting off the release paper base material 2 at a position between the release paper 3 and the next release paper 3 after printing one release paper 3, so that the release paper 3 and the release paper base material 2 attached with the release paper are cut off and then output from the printing device 8.

Referring to fig. 3, fig. 3 shows a tag 14 in this embodiment. The label 14 is made by the printing device 8 after printing is finished, specifically, a printed release paper 3 and a release paper substrate 2 attached to the release paper 3 are cut off by the paper cutting unit and then output from the printing device 8, the release paper 3 is peeled off from the release paper substrate 2 attached to the release paper 3 to obtain the label 14, the back surface of the label 14 has viscosity, and the label can be attached to a proper position of clothes or a body of a patient, so that the label is convenient for doctors in emergency rooms to recognize. To illustrate specifically, if the emergency room condition determines that the patient is of the type "in need of continuous attention" and the symptom is epigastric pain, at this time, the input module of the printing apparatus 8 selects the relevant selected information and inputs the symptom as the complex information, the printing apparatus 8 performs the monochrome printing of the prefabricated printing medium 1, and after the printing is completed, the printing color covers the other color area than the selected color area 15 in the identification information expression area 4 of the label 14 (original release paper 3), in this embodiment, as shown in fig. 3, both the two color sub-areas 6 of the color area 7 having the color of green and the two color sub-areas 6 of the color area 7 having the color of red are covered with the printing color, thereby forming four covering sub-areas 16, and the four covering sub-areas 16 collectively form the covering area 17. The covered sub-region 16 is a region spatially independent of each other with print colors corresponding to the covered color region 7 or the color sub-region 6. The coverage area 17 refers to an area where the printing color covers all other color areas 7 than the selected color area 15, and the coverage area 17 may include several coverage sub-areas 16 or may be one continuous area. In addition, in the complex information expression area 5 of the label 14 (original release paper 3), the pattern and/or the letter 18 are displayed in the natural color of the release paper 3 by the printed color, and the specific contents are "symptoms: upper abdominal pain). After the label 14 is attached to the proper place of the patient's clothing or body, the physician in the emergency room can very quickly visually capture the uncovered yellow colored region 7 and quickly identify the identification information it expresses as "need for continued attention" after which the physician can take appropriate medical action. Meanwhile, in the specific diagnosis and treatment process, the doctor can also know the symptoms of the patient through the patterns and/or the characters 18 in the complex information expression area 5, so that the corresponding diagnosis and treatment can be carried out without additional inquiry.

Based on the above, it is known that the printing color of the prefabricated printing medium 1 is covered with the other color areas 7 except the selected color area 15 by the monochromatic printing, so that the selected information can be expressed, and the person who needs to know the selected information can quickly capture, recognize and memorize.

Referring to fig. 4, fig. 4 shows an identification device 19 in the present embodiment. The identification means 19 are used to identify selected information expressed by the tag 14 in this embodiment. As shown in fig. 4, the recognition device 19 includes an image acquisition module 20, an image resolution module 21, an information recognition module 22, and a presentation module 23. The image acquisition module 20 is used for acquiring an image of the tag 14, and may be a black-and-white camera or a black-and-white camera. The image resolution module 21 is configured to resolve the identification reference portion and the coverage area 17 in the image, where the identification reference portion is an outer contour or a specific portion of the outer contour of the tag 14 in this embodiment. Coverage area 17 has been previously described. The image resolution module 21 typically uses an edge algorithm to resolve the outline of the tag 14 and the coverage area 17. In general, it may first determine pixels on the image having black and white gray values corresponding to the print color, and then determine the portions belonging to the outline and the portions belonging to the coverage area 17 according to an edge algorithm. The prompt module 23 is configured to output prompts in a manner that can be visually perceived (e.g., a flashing light signal) and/or that can be audibly perceived (e.g., a buzzing). The information identifying module 22 is configured to determine whether the image meets an identifying condition, and identify, when the identifying condition is met, a color area 7 covered by the covering area 17 according to a relative position between the covering area 17 and the identifying reference portion, and then invert the uncovered selected color area 15, and identify the selected information according to the identifying condition, where the identifying condition is that the image has the identifying reference portion and the covering area 17 is complete, and the covering area 17 is that the covering area 17 covers at least four color sub-areas 6 of two color areas 7 in this embodiment. The information recognition module 22 also controls the prompt module 23 to output a prompt and controls the image acquisition module 20 to acquire the image of the tag 14 again when the recognition condition is not satisfied.

Fig. 5 shows a method 24 of identifying selected information, which uses the identification means in the present embodiment, which includes an image acquisition step 25, an image resolution step 26, a judgment step 27, an information identification step 28, and a presentation step 29. Wherein the image acquiring step 25 is used for acquiring an image of the tag 14; an image resolution step 26 for resolving the identification reference portion and the coverage area 17 in the image; a judging step 27 for judging whether the image satisfies the recognition condition; an information identifying step 28 for identifying selected information based on the relative positions of the coverage area 17 and the identification reference portion when the identification condition is satisfied; the prompting step 29 is used for outputting a prompt when the identification condition is not satisfied; the image acquisition step 25 is again returned when the recognition condition is not satisfied.

The identification of the selected information expressed by the tag 14 by the identification device 19 may be performed in this embodiment when the doctor in the emergency room counts the number of patients in the emergency room, and the doctor may hold the identification device and scan the tag 14 of all patients in turn, so that the selected information of each patient can be conveniently obtained, and further, the number of people of various patients can be automatically counted and displayed on a large display screen.

As can be seen from the description of the present embodiment, in the present embodiment, the color area 7 is used to express the identification information, so that the human eye can quickly capture, recognize and memorize the identification information. The selected color area 15 is left by covering the other color areas outside the selected color area 15 with the printing color, and the selected color area 15 is the color area 7 for expressing the selected information, so that the selected identification information can be expressed for the human eye to capture, recognize and memorize quickly. In this embodiment, the selected color area 15 is made to express the selected information by monochrome printing on site, so that the cost of displaying the selected information is low compared to a scheme in which multicolor printing is deployed on site. It should be noted that not only the use of a monochrome printer can effectively reduce the equipment cost and the use cost, but also the use cost can be greatly reduced even in the case of using only a monochrome printer. In this embodiment, since the printing color covers the other color areas 7 except the selected color area 15, and the black-and-white gray value of the printing color is different from the black-and-white gray value of the color of each color area 7 and also from the black-and-white gray value of the co-operating color of each color area 7, the machine vision can easily recognize the covered area 17 composed of a single printing color, and can determine the selected information to be expressed by the uncovered selected color area 15 by inversion. Therefore, the method is beneficial to machine identification, improves the calculation speed of the machine identification, reduces the false identification rate of the machine identification, and can reduce the equipment cost by using a cheaper black-and-white camera and the like. In this embodiment, the black-and-white gray value of the printing color is obviously different from the black-and-white gray value of the color of each color region 7 and is obviously different from the black-and-white gray value of the accompanying color of each color region 7, so that the false recognition rate of machine recognition can be further reduced. In this embodiment, although the coverage area 17 formed by the printed color will form a certain visual disturbance to the selected color area 15, since the color area 7 is used, the area of the represented color is correspondingly much larger than the area of the dot or pixel, and the human eye can easily recognize the selected information. In this embodiment, the prefabricated print medium 1 expresses the identification information through the color area 7, which is more beneficial for the human eyes to capture, identify and memorize quickly. Compared with the prior art, the technical scheme that dot groups are printed on the background color of the prefabricated printing medium 1 in advance, each dot in the dot groups is provided with three primary colors or a plurality of other colors, and the dot groups are mainly two different in color, wherein one of the dot groups is provided with a color area 7 which can form color blocks and has stronger visual impact to human eyes; secondly, the prior art solution can only cover the unnecessary dots in the dot group with the same or similar printing color as the background color, and also cover the unnecessary colors in the dots to be reserved, thereby forming the pattern and/or text composed of a single color, while the present technical solution allows to cover the other color areas 7 except the selected color area 15 with the printing color different from the co-lining color of the color area 7 without affecting the effect of expressing the selected information. In this embodiment, the prefabricated printing medium 1 includes a release paper substrate 2 suitable for being wound and release paper 3 attached to the release paper substrate 2, and the length direction of the prefabricated printing medium 1 is the same as the winding direction, so that a plurality of release papers 3 with color areas 7 can be arranged on one release paper substrate 3, and the prefabricated printing medium 1 is conveniently stored in a paper bin of the printing device 8, so that the prefabricated printing medium 1 is not required to be fed into the printing device every time of printing, the operation is simpler, and the miniaturization and even the handholding of the printing device 8 are facilitated. In this embodiment, the two sides of the prefabricated printing medium 1 along the width direction are provided with the identification information expression areas 4, which is not only beneficial for a machine to identify the labels more conveniently (consistency of forward direction and reverse direction), but also can express complex information between the two identification information expression areas 4 in the form of patterns and/or characters 18, so that the labels 14 can bear more functions. In the present embodiment, the respective color sub-areas 6 are abutted against each other, and the occupied area of the identification information expression area 4 is reduced while the area of each color area 7 is ensured. In this embodiment, the input module 9 acquires the selected information, and the printing module 10 overlays the other color areas 7 than the selected color area 15 based on the selected information, so that the printing apparatus 8 can be used to realize the function of expressing the selected information. In this embodiment, the storage unit 11 stores print positioning data, so that an operator does not need to input the position and the range of the coverage area 17 at the same time when inputting or selecting the selected information by using the input module 9, which is beneficial to making man-machine interaction of the printing device 8 simpler and faster. In this embodiment, the printing device 8 also obtains the complex information and prints the complex information via the pattern and/or text 18, so that the printed label 14 can carry more information. In this embodiment, the identification means 19 are able to identify the position of the coverage area 17 relative to the identification reference, thus determining the colour area 7 covered by the coverage area 17, and then inverting the selected colour area 15, thus identifying the selected information, effectively exploiting the fact that the coverage area 17 is covered by a single printed colour, making the machine easier to distinguish and identify. The present embodiment enables the operator to change the position or posture of the tag 14 with respect to the recognition device 19 by outputting a prompt that can be visually perceived and/or can be acoustically perceived when the recognition condition is found to be unable to be satisfied, so that the selected information can be finally recognized effectively.

Example two

The second embodiment is different from the first embodiment in that:

as shown in fig. 6, the prefabricated printing medium 1 in the present embodiment is different from the first embodiment. In the present embodiment, the prefabricated printing medium 1 has a release paper 3 continuous in the length direction on a release paper base material 2; in this embodiment, the color of the color sub-areas 6 and 7 having the yellow color in the first embodiment is the natural color of the release paper 3, that is, white.

The printing apparatus 8 in this embodiment is different from the first embodiment. In the present embodiment, the printing apparatus 8 can continuously print according to the length of the complex information and cut the paper after the printing is completed, without having to cut the paper at a position between the two release papers 3. In this embodiment, the printing apparatus 8 needs to roll back a length of the prefabricated printing medium 1 at each printing to enable the printing color to cover the front end of the color area 7, and even if the front end of the color area 7 cannot be covered completely, it is allowed, or the uncovered portion may be cut off by cutting paper.

As shown in fig. 7, the tag 14 in this embodiment is different. In this embodiment, the tag 14 may be of indefinite length. When the selected information is "in need of continuous attention", the selected color area 15 on the label 14 is the natural color of the release paper 3, that is, white.

Compared with the first embodiment, the embodiment has the advantages that the release paper 3 is of an indefinite length, and each color area 7 extends along the length direction of the prefabricated printing medium 1, so that the color areas 7 are printed in a continuous printing mode when the prefabricated printing medium 1 is manufactured, and the problem that the subsequent covering effect is deteriorated due to inaccurate label cutting positions when the single-color printing is performed due to the interval printing mode is avoided. Meanwhile, after monochromatic printing is carried out on the prefabricated printing medium 1, the prefabricated printing medium can adapt to different label lengths, namely the label lengths can be changed according to requirements, and the color area 7 to be covered can still be effectively covered. In this embodiment, the printing cost of the prefabricated printing medium 1 can be reduced by using the natural color of the release paper 3 instead of yellow.

Example III

The application scenario of the third embodiment is a label used when a pharmacy in a hospital dispenses a drug. It is well known that the number of times of daily administration of an oral drug can be divided into three types, once a day, twice a day and three times a day. After the patient retrieves the medicine, the patient often forgets the daily taking times of the medicine, and then the patient needs to find the characters and record on the medicine bottle, so that inconvenience is brought. Therefore, the patient can recognize the daily taking times of the medicine at a glance through a striking expression mode. If the two-dimensional code of the prescription is printed on the corresponding label, the two-dimensional code can be scanned and automatically compared with the daily administration times when the medicine is dispensed, so that the wrong dispensing is avoided.

The following describes the differences between the present embodiment and the first embodiment, and the differences between the present embodiment and the first embodiment are not described.

Referring to fig. 8, fig. 8 shows a prefabricated print medium 1 in a third embodiment. As shown in fig. 8, the prefabricated printing medium 1 is composed of a release paper base material 2 of a fixed length and a release paper 3 of a fixed length attached to the release paper base material 2. On the release paper 3, an identification information expression region 4 and a complex information expression region 5 are arranged along the length direction a, the color of the identification information expression region 4 is the natural color of the release paper, and the color of the complex information expression region 5 is light blue. In the identification information expression area 4, three color areas 7 are arranged along the width direction of the prefabricated printing medium 1, the colors of which are green, yellow and red, respectively, wherein green corresponds to identification information of "once per day", yellow corresponds to identification information of "twice per day", and red corresponds to identification information of "three times per day". The color of the co-liner of each color area 7 is white. In front of the three color areas 7, a print positioning mark 30 for performing print positioning is further provided, and the print positioning mark 30 does not overlap each color area 7 and has a print color (black).

The printing apparatus 8 in the present embodiment is different from the printing apparatus 8 in the first embodiment in that the print reference portion in the present embodiment is the print positioning mark 30, and the printing module 10 of the printing apparatus 8 in the present embodiment does not include a paper cutting unit. The printing apparatus 8 in the present embodiment adopts a monochromatic laser printer, and its printing color is also black.

The printing device 8 in this embodiment is installed at the medicine dispensing place.

Fig. 9 shows a label 14 of the present embodiment, as shown, the coverage area 17 in the present embodiment comprises two coverage sub-areas 16, each corresponding to a color area 7, each coverage sub-area 16 covering one color area 7 outside the selected color area 15. The complex information in this embodiment is expressed not only by text, but also includes a two-dimensional code (not shown in the figure) corresponding to the prescription information, and is specifically located on the right side of the text.

The patient can conveniently obtain the identification information of the number of daily doses through the selected color area 15 on the identification tag 14 without having to look at the medication instructions.

The identification device 19 in this embodiment is different from that in the first embodiment in that the identification reference portion in this embodiment is a print positioning mark 30.

The identification device 19 in the present embodiment also has a function of scanning a two-dimensional code and acquiring prescription information. Meanwhile, the identification device 19 of the present embodiment can alarm when the selected information does not match the prescription information.

The identification device in this embodiment may be installed at a medication intake site where medications are dispensed, and may be used to check whether the dispensing of medications is correct, ensuring that the identification information is consistent with the prescription information.

The technical effects of the present embodiment are substantially the same as those of the first embodiment, and will not be described herein.

Example IV

The application scene of the embodiment is automatic detection of a mobile phone screen glass cover plate. After the production of the mobile phone screen glass cover plate is finished, automatic detection is required to be carried out through optics, the production reasons of defective products can be divided into scratch or crack, bulge or dent and edge notch, after the automatic detection is finished, the defective products are required to be marked, corresponding rechecking is carried out, and the rechecking can be carried out manually. After rechecking, the need of defective products is still counted and analyzed according to the generation reasons.

The differences between this embodiment and the third embodiment are described below, but the differences between this embodiment and the third embodiment are not described.

Referring to fig. 10, fig. 10 shows a prefabricated print medium 1 in a fourth embodiment. As shown in fig. 10, in the present embodiment, the prefabricated print medium 1 has no print positioning marks, and the prefabricated print medium 1 in the present embodiment also has no complicated information expression area. The release paper in this embodiment also has a gradual change of cyan as a background color. The three color areas 7 in this embodiment are adjacent. Wherein green is used to express "" scratches or cracks "", yellow is used to express "" bumps or depressions "", red is used to express "" edge notches "", the accompanying colors of the color region 7 of green are yellow and graded cyan, the accompanying colors of the color region 7 of yellow are green, red and graded cyan, and the accompanying colors of the color region 7 of red are yellow and graded cyan.

The printing apparatus 8 in the present embodiment is different from the printing apparatus 8 in the third embodiment in that the printing reference portion in the present embodiment is a front end corner portion of the release paper 3 in the printing feed direction of the prefabricated printing medium 1. The input module 9 in this embodiment does not acquire complex information any more, and the automatic detection device of the mobile phone screen glass cover plate automatically inputs identification information according to the detection result. The print module 10 in this embodiment also no longer prints the patterns and/or text 18 for expressing complex information. The printing device 8 in this embodiment is further provided with a paper tearing attachment module for tearing off the release paper substrate 2 and attaching the release paper to the mobile phone screen glass cover plate. The storage unit 11 in this embodiment also stores identification positioning mark print data including the relative position of the identification positioning mark 31 to be printed with respect to the print reference portion and the print range of the identification positioning mark 31, the identification positioning mark print data should also ensure that the identification positioning mark 31 does not overlap with each color region 7 after being printed onto the prefabricated print medium 1, and the printing unit 13 in this embodiment also performs monochrome printing based on the identification positioning mark print data acquired from the storage unit 11 after the positioning unit 12 has positioned the print reference portion, and forms the identification positioning mark 31.

Referring to fig. 11, fig. 11 shows a tag 14 in this embodiment. As shown in fig. 11, in the tag 14, the identification positioning mark 31 is formed to cover all the color areas 7, that is, not only the selected color area 15, but also all the coverage areas 17, which may be continuous or two coverage areas 16 in this embodiment. Fig. 11 shows a continuous area. The identification positioning mark 31 includes four corners, and all the color areas 7 are located within the range enclosed by the four corners. Each corner is formed by intersecting two line segments.

The identification device 19 in this embodiment is installed after the manual rechecking, and is used for a worker to scan all the rechecked defective products and to count the reasons of the defective products. In this embodiment, the identification reference portion in the identification device 19 is the identification positioning mark 31, and the identification condition in this embodiment is that the identification reference portion is complete in shape, that is, all four corners are in the image.

In the present embodiment, since the identification positioning mark 31 envelopes each color region 7, it can be estimated that the coverage area 17 is complete by determining that the identification positioning mark 31 is complete in shape. The method is favorable for image recognition and recognition condition judgment. Wherein the function of identifying the positioning mark 31 may also be replaced by printing the positioning mark 30.

Example five

A fifth application of the embodiment is in digital agricultural planting, especially fruit tree planting. The fruit trees need to be checked in a certain growth stage to judge whether the growth is good, and the fruit trees can be divided into three types of 'good growth', 'suffering from plant diseases and insect pests' and 'needing additional fertilization' according to the growth condition. After classifying the fruit trees, the fruit trees need to be counted by scanning one by using the identification device, and the fruit trees are compared with the situation of the past year for treatment.

The following describes the differences between the present embodiment and the fourth embodiment, and the differences between the present embodiment and the fourth embodiment are not described.

Referring to fig. 12, fig. 12 shows a prefabricated print medium 1 in the present embodiment. As shown in fig. 12, the background color of the release paper 3 of the prefabricated print medium 1 in the present embodiment is the natural color of the release paper 3. The release paper 3 has three color areas 7 thereon, each color area 7 having a different shape. The color area 7 with red color is used for expressing the identification information of 'suffering from plant diseases and insect pests', the shape of the color area is five-pointed star, the color area 7 with yellow color is used for expressing the identification information of 'needing additional fertilization', the shape of the color area is round, and the color area 7 with green color is used for expressing the identification information of 'growing well', and the shape of the color area is square. In this embodiment, the color of each color area 7 is the natural color of the release paper 3, i.e. white. The prefabricated printing medium 1 in the present embodiment is provided with a print positioning mark 30 at the front end in the print feeding direction of the length direction a.

The print reference portion of the printing apparatus 8 in the present embodiment is the print positioning mark 30, and the storage unit 11 stores the print positioning data without storing the identification positioning mark print data. The printing unit 13 in the present embodiment does not print the identification positioning marks 31. In the present embodiment, the printing apparatus 8 performs monochrome printing, and the coverage sub-area 16 formed by covering each other color area 7 except the selected color area 15 with the printing color is adapted to the shape of the color area 7. The printing apparatus 8 in the present embodiment has no paper tearing attachment module.

The printing device 8 in this embodiment is hand-held, which inputs selected information by a person based on the inspection result when inspecting a tree.

Referring to fig. 13, fig. 13 shows a label 14 in this embodiment, with a printed locating mark 30 on the label 14 and a cover area 17 with two separate cover sub-areas 16. The shape of the covered sub-area 16 is adapted to the covered color area 7. The selected color area 15 remains in its original shape.

The identification device 19 in this embodiment is used for scanning the inspected forest to obtain statistical information of various growth conditions. The image resolution module 21 of the identification means 19 in this embodiment is used to resolve the overlay sub-areas 16 in the image without resolving the printed positioning marks 30. The recognition condition in this embodiment is that all the covered sub-areas 16 (two) are on the image. The information identifying module of the present embodiment determines the color area 7 corresponding to the coverage sub-area 16 according to the shape of each coverage sub-area 16, and then inverts the selected color area 15, and finally identifies the selected information.

The technical solution of the present embodiment reduces the complexity of machine vision recognition relative to a solution using a recognition reference portion as a position reference for the coverage area 17.

It should be particularly noted that, the embodiments and the scenes in the description are only used for illustrating the technical scheme of the patent. Wherein the method of expressing the selected information, the pre-formed printing medium 1, the printing device 8 and the label 14 are all independent solutions, independent of the identification device or the method of identifying the selected information. Even if the scene does not appear to require machine recognition, it should be considered to facilitate machine recognition and possibly introduce machine recognition in special cases, as long as the technical solutions defined by the method of expressing the selected information, the pre-made print medium 1, the printing device 8 and the label 14 in this patent are met. For example, when a student uses the prefabricated print medium 1 or the label 14 in the fifth embodiment to identify a notebook, the notebook is classified into "pre-study notebook", "wrong-topic notebook" and "classroom notebook", and in general, this classification of the notebook does not require machine identification, but when a teacher needs to perform statistics on the notebook of the student, the machine identification may be performed by using the identification device and the method of identifying the selected information to complete the statistics.

The above description and examples are illustrative of the scope of the application and are not to be construed as limiting the scope of the application.

Claims

1. A method of expressing selected information, characterized by:

performing monochromatic printing on the prefabricated printing medium (1) to enable printing colors to cover other color areas except the selected color area (15);

at least two color areas (7) for expressing identification information are arranged on the prefabricated printing medium (1);

the color of each of said color areas (7) being different from the accompanying color around its periphery and the colors of the respective color areas (7) being different from each other;

the selected color area (15) is a color area (7) for expressing selected information, which is selected identification information among the identification information;

-said printing colour is distinguished from the colour of each of said colour zones (7) and from the co-colour of each of said colour zones (7);

the black-and-white gray value of the printing color is distinguished from the black-and-white gray value of the color of each color region (7) and from the black-and-white gray value of the companion color of each color region (7).

2. A method of expressing selected information as claimed in claim 1, wherein said black and white gray values of the printing color are clearly distinguished from the black and white gray values of the color of each of said color areas (7) and from the black and white gray values of the companion color of each of said color areas (7).

3. Method of expressing selected information according to claim 1, characterized in that said pre-formed print medium (1) is further provided with a print registration mark (30) for performing print registration, said print registration mark (30) being non-overlapping with each of said color areas (7) and having a print color.

4. Method of expressing selected information according to claim 1, characterized in that the identification positioning mark (31) is printed in a printing color when the pre-made printing medium (1) is subjected to monochromatic printing, said identification positioning mark (31) not overlapping each of said color areas (7).

5. Method of expressing selected information according to claim 1, characterized in that each of said color areas (7) has a different shape, and that the coverage sub-area (16) formed by each other color area (7) of the printing color coverage selected color area (15) outside the color area (7) is adapted to the shape of the color area (7) when the pre-formed printing medium (1) is subjected to monochromatic printing.

6. Prefabricated printing medium (1), characterized in that it is provided with at least two color areas (7) for expressing identification information, the color of each of said color areas (7) being distinguished from the accompanying color around its periphery and the colors of said color areas (7) being distinguished from each other; each of the color areas (7) extends along a length direction (a) of the prefabricated print medium (1).

7. The prefabricated printing medium (1) according to claim 6, characterized in that the prefabricated printing medium (1) comprises a release paper substrate (2) suitable for being wound and release paper (3) attached to the release paper substrate (2), the length direction (a) of the prefabricated printing medium (1) is the same as the direction in which it can be wound; the number of the release papers (3) attached to the release paper base material (2) is one or more, and the color area (7) is positioned on the release papers.

8. The prefabricated printing medium (1) according to claim 6 or 7, wherein the prefabricated printing medium (1) is provided with identification information expression areas (4) on both sides in the width direction, each color area (7) is provided with a color subarea (6) on both identification information expression areas (4), and each color subarea (6) extends along the length direction (a) of the prefabricated printing medium (1).

9. The prefabricated print medium (1) according to claim 8, characterized in that the color sub-areas (6) are abutted against each other, at least part of the color sub-areas (6) being color-accompanied by other color sub-areas (6).

10. -a printing device (8) for single-color printing of a pre-formed printing medium (1), said pre-formed printing medium (1) being provided with at least two color areas (7) for expressing identification information, each of said color areas (7) being of a color different from a co-ordinated color around its periphery and the colors of said color areas (7) being different from each other; the printing apparatus (8) includes:

An input module (9) for obtaining selected information, which is selected one of the identification information; and

-a printing module (10) for printing a pre-formed printing medium (1) in a single color such that a printing color covers color areas (7) other than a selected color area (15), the selected color area (15) being a color area (7) for expressing selected information, the printing color being different from the color of each of the color areas (7) and from the co-ordinated color of each of the color areas (7), the black and white gray value of the printing color being different from the black and white gray value of the color of each of the color areas (7) and from the black and white gray value of the co-ordinated color of each of the color areas (7).

11. Printing device (8) according to claim 10, wherein said printing module (10) comprises:

a storage unit (11) that stores print positioning data including a relative position of each of the color areas (7) with respect to a print reference portion as a print positioning reference and a coverage of each of the color areas (7);

a positioning unit (12) for positioning the printing reference portion; and

and a printing unit (13) that performs monochrome printing based on the print positioning data acquired from the storage unit (11) so that a print color covers the other color area (7) than the selected color area (15) after the positioning unit (12) positions the print reference portion.

12. Printing device (8) according to claim 11, characterized in that:

the storage unit (11) also stores identification positioning mark printing data, wherein the identification positioning mark printing data comprises the relative position of an identification positioning mark (31) to be printed relative to the printing reference part and the printing range of the identification positioning mark (31), and the identification positioning mark printing data also ensures that the identification positioning mark (31) is not overlapped with each color area (7) after being printed on the prefabricated printing medium (1);

the printing unit (13) also performs monochrome printing based on the identification positioning mark print data acquired from the storage unit (11) after the positioning unit (12) is positioned to the print reference portion, and forms the identification positioning mark (31).

13. Printing device (8) according to any one of claims 10 to 12, characterized in that:

the input module (9) is also used for acquiring complex information;

the printing module (10) is further used for printing patterns and/or words (18) for expressing the complex information on the prefabricated printing medium (1), wherein the patterns and/or words (18) are not overlapped with each color area (7).

14. Label (14), characterized in that it is produced by a method of expressing selected information according to any one of claims 1 to 4.

15. Label (14), characterized in that it is produced by a method for expressing selected information according to claim 3 or 4, said printed positioning mark (30) or said identification positioning mark (31) enveloping each of said color areas (7).

16. Label (14), characterized in that it is produced by the method of expressing selected information according to claim 5.

17. Identification means (19) for identifying selected information expressed by a tag (14) according to claim 14, comprising:

an image acquisition module (20) for acquiring an image of the tag (14);

an image resolution module (21) for resolving an identification reference part and a coverage area (17) in the image, wherein the identification reference part is an outer contour of the label (14), a specific part of the outer contour, a printing positioning mark (30) or an identification positioning mark (31), and the coverage area (17) is an area formed by printing color to cover all other color areas (7) except a selected color area (15) in the process of manufacturing the label; and

and the information identification module (22) is used for judging whether the image meets the identification condition or not, and identifying the selected information according to the relative position of the coverage area (17) and the identification reference part when the identification condition is met, wherein the identification condition is that the image has the identification reference part and the coverage area (17) is complete.

18. Identification means (19) for identifying selected information expressed by a tag (14) according to claim 15, comprising:

an image acquisition module (20) for acquiring an image of the tag (14);

an image resolution module (21) for resolving an identification reference part and a coverage area (17) in the image, wherein the identification reference part is a printing positioning mark (30) or an identification positioning mark (31) of the label (14), and the coverage area (17) is an area formed by covering all other color areas (17) except a selected color area (15) by printing colors in the process of manufacturing the label (14); and

and the information identification module (22) is used for judging whether the image meets the identification condition or not, and identifying the selected information according to the relative position of the coverage area (17) and the identification reference part when the identification condition is met, wherein the identification condition is that the shape of the identification reference part in the image is complete.

19. Identification means (19) for identifying selected information expressed by a tag (14) according to claim 16, comprising:

an image acquisition module (20) for acquiring an image of the tag (14);

an image resolution module (21) for resolving the overlay sub-area (16) in the image; and

And an information recognition module (22) for judging whether the image satisfies a recognition condition, and recognizing selected information according to the shape of each of the covered sub-areas (16) when the recognition condition is satisfied, wherein the recognition condition is that all the covered sub-areas (16) are on the image.

20. The identification device (19) of any one of claims 17 to 19, further comprising a prompt module (23), the prompt module (23) being adapted to output a prompt in a visually perceptible and/or aurally perceptible manner; the information identification module (22) also controls the prompt module (23) to output a prompt and controls the image acquisition module (20) to acquire the image of the tag (14) again when the identification condition is not satisfied.