KR102389018B1 - System for Automatic Calibration of Label Printing - Google Patents

Abstract

The present invention relates to an industrial automatic corrected bar code label printing system. The automatic label correction system according to an embodiment of the present invention comprises: a label printer provided in a product production line to print a label directly or indirectly attached to a product; a photographing device provided in the vicinity of the label printer to photograph a label paper printed and outputted from the label printer; and an automatic label correction device setting the reference value of the position of the printed label paper outputted, determining whether the state of the label paper included in a photographed image photographed by the photographing device deviates from a (pre)set position reference value, and providing the correction data of a label adjustment value to the label printer so as to print the label based on the label adjustment value when the state is determined to deviate from the reference value.

Description

Label printing automatic calibration system {System for Automatic Calibration of Label Printing}

The present invention relates to a label printing automatic calibration system, and more particularly, a label printing automatic calibration system for improving print quality and increasing the operation rate of a production line by correcting a printing defect problem due to paper shaking of an industrial barcode label printer, for example. is about

Barcode labels are attached for product specification information and history management on automated production lines in product manufacturing plants. Due to the structure of the industrial printer that outputs these barcode labels, the paper is not always kept constant and the production line is frequently stopped due to print quality problems such as the print content being cut off due to shaking. In addition, production operators frequently check the print quality of labels, stop the line, and recalibrate the paper, causing inconvenience.

In addition, the process of issuing and affixing labels (eg, labeling process) and checking whether labels are issued normally (eg, label vision inspection) are divided, which increases the physical length of the production line, which reduces space utilization and reduces power consumption. There is a problem of increased consumption.

Therefore, there is a growing need to solve these problems to improve label print quality and line operation rate, and at the same time reduce unnecessary actions of workers.

Korean Patent Publication No. 10-0140153 (March 10, 1998) Korean Patent Publication No. 10-1153611 (2012.05.30) Korean Patent Publication No. 10-2007-0092239 (2007.09.12)

An embodiment of the present invention aims to provide an automatic label printing correction system for improving print quality and increasing the operation rate of a production line by correcting a printing defect problem due to paper shaking of an industrial barcode label printer with software.

Label printing automatic calibration system according to an embodiment of the present invention is a label printer that is provided on a product production line to print a label attached directly or indirectly to the product, is provided around the label printer and is printed on the label printer A photographing device for photographing the label paper to be outputted, and a position reference value of the output label paper are set, and the state of the label paper included in the photographed image photographed by the photographing device is out of the set position reference value, and and a label automatic correction device for providing correction data of the label adjustment value to the label printer so that the label is printed based on the label adjustment value when the determination result deviates from the reference value.

The label automatic correction device sets the upper and left margin values based on the printed matter of the label paper, sets the limit deviation value and the maximum deviation value, respectively, to generate the label adjusted value based on the limit deviation value. can

The automatic label correction device may stop the operation of the label printer and notify an alarm to the operator when it is out of the maximum skew value.

The automatic label correction device, when generating the correction data of the label adjusted value, may be generated based on the sensing data of the impact sensor for determining whether the impact of the label printer.

When it is determined that there is no impact to the label printer based on the sensing data of the impact sensor, the label automatic correction device may request the operator to replace parts.

The automatic label correction apparatus may generate the correction data by determining a correction range for sensing data of a speed sensor and a direction sensor provided in the label printer when generating the correction data.

In an embodiment of the present invention, when a label is printed, the printed label sheet is photographed with a camera (vision) to detect a misaligned position of the output, and the misaligned position can be corrected during the next label printing to maintain a constant position of the label.

In addition, according to an embodiment of the present invention, it is possible to maintain the consistency of printed matter by correcting the misaligned position during the next printing by paying attention to the gradual misalignment of the label rather than the large width at once.

Furthermore, by using a camera to perform the label position correction and inspection process at once, the process can be integrated to secure space, reduce maintenance costs, and reduce power consumption.

1 is a view showing a label printing automatic calibration system according to an embodiment of the present invention;
Figure 2a is a view showing an output state of the label printer of Figure 1;
2B and 2C are diagrams for explaining a process for measuring and correcting a misalignment of a label output from the label printer of FIG. 1;
3 is a view showing a normal label issuance of the label printer of FIG. 1;
FIG. 4 is a view showing the left and right paper misalignment of the label printer of FIG. 1;
5 is a view showing a vertical distortion of the label printer of FIG. 1;
6 is a block diagram illustrating a detailed structure of the automatic label printing automatic correction device of FIG. 1;
7 is a flowchart showing a label printing automatic calibration process according to an embodiment of the present invention, and
8 is a flowchart illustrating a driving process of the automatic label printing correction device of FIG. 1 .

Specific structural or functional descriptions of the embodiments of the present invention disclosed in the present specification or application are only exemplified for the purpose of describing the embodiments according to the present invention, and the embodiments according to the present invention may be implemented in various forms. and should not be construed as limited to the embodiments described in this specification or application.

Since the embodiment according to the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the present specification or application. However, this is not intended to limit the embodiment according to the concept of the present invention with respect to a specific disclosed form, and should be understood to include all changes, equivalents or substitutes included in the spirit and scope of the present invention.

Terms such as first and/or second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one element from another element, for example, without departing from the scope of the present invention, a first element may be called a second element, and similarly The second component may also be referred to as the first component.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but other components may exist in between. It should be understood that there may be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle. Other expressions describing the relationship between elements, such as "between" and "immediately between" or "neighboring to" and "directly adjacent to", etc., should be interpreted similarly.

The terminology used herein is used only to describe specific embodiments, and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate that the described feature, number, step, operation, component, part, or a combination thereof exists, and includes one or more other features or numbers. , it should be understood that it does not preclude the existence or addition of steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present specification. does not

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

1 is a view showing a label printing automatic calibration system according to an embodiment of the present invention, FIG. 2a is a view showing an output state of the label printer of FIG. 1, and FIGS. 2b and 2c are labels output from the label printer of FIG. 1 A view for explaining a process for measuring and correcting the misalignment, FIG. 3 is a view showing the normal label issuance of the label printer of FIG. 1, FIG. 4 is a view showing the left and right paper misalignment of the label printer of FIG. 1, and FIG. 5 FIG. 1 is a view showing the vertical misalignment of the label printer of FIG. 1 .

1, the label printing automatic calibration system 90 according to the embodiment of the present invention includes a part or all of the label printer 100, the photographing device 110, and the label printing automatic calibration device 120 do.

Here, some components such as the label printing automatic correction device 120 are omitted to “include part or all”, so that the label printing automatic calibration system 90 is configured, or some components such as the photographing device 110 are It means that it can be configured by being integrated with other components such as the label printer 100, and it will be described as including all in order to help a sufficient understanding of the invention.

The label printer 100 includes various types of printers provided in a production line for producing products. For example, it can be installed and operated at a location for a label attaching process of issuing and attaching a label (paper) in the prior art and a label vision inspection that confirms whether the label is issued normally. For example, a production line for producing products may be operated in the form of a conveyor belt. Accordingly, when a specific product is assembled and packaging is completed, a process such as attaching a label after packaging may be performed. Here, the label may be variously named, such as label paper or label paper. Also, the QR code or various information on which the label is printed can be printed. More precisely, it may be print information.

Label printer 100 may be a general purpose device such as a portable or desktop laser, thermal transfer inkjet or dot matrix printer. Alternatively, a label printer 100, such as a handheld thermal transfer label printer, may be specially adapted to print labels. Handheld thermal transfer label printers are commercially available from Fandute Corporation of Tinley Park, Illinois and other companies. Regardless of the type of printer 110 used, the label printing automatic calibration device 120 or the like or the printer 100 generates at least one output file or record having the parameters of the print job and sends it to the label printer 100 . Transfer or save the file or record. The computer of the label printer 100 generally includes an appropriate printer driver. The label printer 100 may be connected to and communicate with the label printing automatic calibration device 120 through an internal network such as an intranet. To this end, the label printing autocalibrator via a series of interfaces, such as an Ethernet interface, a serial interface, a USB interface, an infrared interface, a Bluetooth interface or any other interface that can be used for point to point transmission of data. 120 may be directly connected.

The label printer 100 includes, for example, a paper storage unit that rolls and stores label paper, a roller unit that outputs the paper of the paper storage unit at a constant speed, and a barcode of data or information preset on the paper immediately before being output by the roller. It may include a printing unit for printing the label, and a control unit such as a CPU, MPU, GPU, etc. for controlling the paper storage unit, the roller unit, the printing unit, and the like, respectively. Of course, the label printer 100 may include a communication interface for communicating with the label printing automatic calibration device 120 . For example, in the label printer 100, movement of the label printer 100 may occur due to various problems in the production line, or shaking may occur during printing. can be seen

FIG. 2A shows the printing state of the label printer 100, FIGS. 2B and 2C show a process for measuring and correcting the distortion of the label output from the label printer of FIG. 1, and FIG. 3 is the printing state in a normal state shows However, when the movement of the label printer 100 occurs, as in FIGS. 4 and 5, the paper is distorted left and right (eg, printed by tilting to the left of the paper) or vertically twisted (eg, printed by being tilted toward the top of the paper) this will happen Of course, the label printer 100 may pre-store the data of the label information to be printed in the memory, and the control unit calls the pre-stored data and prints it on the barcode label.

Of course, in addition to the movement of the label printer 100, the factors affecting the printing state may also be related to the aging of the rollers. For example, when the driving speed of the roller is slowed due to aging of the roller, distortion of printed paper may occur. In the embodiment of the present invention, a correction operation may be required in consideration of the overall situation of the label printer 100 . For example, even when the position of the installation place is moved by the operator, it is detected and a test print is performed, and automatic correction can be performed through this. This operation may be determined as a position movement when the background is changed by analyzing the photographed image of the photographing device 110 . In addition, when there is replacement of parts due to aging of the rollers, it is sensed and, for example, identification information of the parts is recognized to automatically perform test printing, and through this, an automatic correction operation can be performed. For example, if the correction is made by reflecting the limit value, but the parts are replaced, the operation is started by resetting the reference value to the first normal operation.

On the other hand, in the label printer 100 according to the embodiment of the present invention, as shown in FIG. 1 , a photographing device 110 such as a vision camera is fixedly installed around the label printer 100, and the image of the printing paper photographed through it Although automatic correction can be made through the , a scanner may be provided so that the printed paper can be photographed from the inside. However, in this case, since it may be difficult to automatically calibrate the label printer 100 due to an external impact, external monitoring may be facilitated in the embodiment of the present invention. However, in the embodiment of the present invention, it will not exclude that the correction is performed according to the correction request of the label printing automatic correction device 120 including the scanner therein. It is preferable that a high-resolution CCD camera is used as a vision camera typically used in an industrial field.

For example, the label printer 100 can be configured by replacing the external imaging device 110 with an internal scanner, and even in the case of the label printing automatic calibration device 120, the label printer 100 is located inside the label printer 100. It can be integrated and configured. Such a role may be performed by a control unit such as a CPU. For example, a reference image related to the print status of the output barcode label paper is stored in advance. Then, the barcode label paper printed and output through the roller is scanned through the scanner, and then the data of the scanned image and the data of the pre-stored reference image are compared to determine the printing state. And, when there is a left-right or up-and-down movement, it is because the correction operation can be performed while maintaining the aging of the current roller. Accordingly, the label printer 100 may be calibrated through a scanner or the like when automatic calibration is required due to problems with internal parts.

Of course, in addition to this, the label printer 100 may include an impact sensor inside or around it, or a sensor such as a speed sensor or a direction sensor such as an acceleration sensor or a gyro sensor. For example, if it is recognized that an impact has occurred in the label printer 100 through the impact sensor, the barcode label paper photographed through the photographing device 110 of FIG. 1 is photographed based on the impact signal, and the photographed image is analyzed and corrected will do In addition, when a sensor such as a gyro sensor is included, it is possible to calculate how much the label printer 100 moves through the corresponding sensors. For example, a movement distance may be measured through a speed sensor. The distance value can be obtained by differentiating the velocity value. In addition, the direction of movement may be measured through the direction sensor. Accordingly, the monitoring operation through the external photographing device 110 may be substituted as in FIG. 1 by reflecting and correcting the movement distance and direction in the measured values. Of course, since it is possible to operate the photographing apparatus 110 in parallel, the embodiment of the present invention will not be limited to any one form.

In an embodiment of the present invention, in addition to the above various methods, as shown in FIG. 1 , the photographing device 110 is separately installed around the label printer 100, and the label printer ( 100) is monitored, and when a movement occurs, a correction value is calculated through the label printing automatic correction device 120, and the calculated correction value is transmitted to the label printer 100 to be corrected.

The photographing apparatus 110 includes a fixed camera. The photographing apparatus 110 may include a CCD camera as a vision camera. For example, a low-cost Internet-based IP camera may be included, and in addition, various types of cameras may be included. For example, the photographing device 110 can modularize the label printing automatic correction device 120 and mount it therein. Data analysis is performed in the photographing device 110 . In this case, the data processing speed may be increased. Accordingly, direct communication with the surrounding label printer 100 may be performed by wire or wirelessly. The data of the reference image during normal printing may be stored in advance, and a correction value may be calculated by comparing the data with the captured image. It is to calculate the degree of distortion of QR codes printed on paper. However, in the embodiment of the present invention, it will be described that the photographing apparatus 110 performs only the photographing operation.

The automatic label printing correction device 120 includes various types of devices such as desktop computers, laptop computers, tablet PCs, and smart phones provided in the production line. For example, the automatic label printing correction apparatus 120 may execute a program for performing an operation according to an embodiment of the present invention with the surrounding label printer 100 and the photographing apparatus 110 . In other words, as mentioned above, the automatic label printing correction device 120 stores the reference data when the barcode label is normally printed in the label printer 100 . Of course, such reference data may be periodically updated when the label printer 100 moves. In other words, this is because the standard is changed as the label printer 100 moves while the photographing apparatus 110 is fixed.

As a result of the above configuration, in the embodiment of the present invention, the position of the paper reference print is maintained even if the paper is twisted, so the consistency of print quality is maintained, and the process of checking whether the paper is distorted by the operator from time to time is not required, so worker labor is reduced do. In addition, it is possible to solve the problem that the line is stopped due to the distortion of the paper and manual correction of the operator. It can prevent the production of poorly printed products due to operator error (eg, unconfirmed). In addition, it is possible to prevent wastage of space by integrating the labeling process and the label vision inspection process, and by integrating the labeling process and the label vision inspection process, it is possible to reduce the maintenance factor of the equipment, and to improve the labeling process and the label vision inspection process. It can be integrated to reduce power consumption.

6 is a block diagram illustrating a detailed structure of the automatic label printing automatic correction device of FIG.

Referring to FIG. 6 together with FIG. 1 for convenience of explanation, the label printing automatic calibration apparatus 120 according to an embodiment of the present invention can operate in a standalone form like a computer, and the label printer 100 or the photographing device ( 110) as a device that can be mounted on the inside and can operate, and includes some or all of the communication interface unit 600, the control unit 610, the label printing automatic correction unit 620, and the storage unit 630.

Here, "including some or all" means that some components such as the storage unit 630 are omitted, or some components such as the label printing automatic correction unit 620 are other components such as the control unit 610. As meanings that can be configured to be integrated into elements, and the like, it will be described as including all in order to help a sufficient understanding of the invention.

The communication interface unit 600 communicates with the label printer 100 and the photographing apparatus 110 of FIG. 1 , respectively. For example, the communication interface unit 600 receives a photographed image or a photographed image of the photographing apparatus 110 . In this process, the communication interface unit 600 may perform operations such as modulation/demodulation, muxing/demuxing, and encoding/decoding. Since this is obvious to those skilled in the art, further description will be omitted.

In addition, the communication interface unit 600 transmits correction data by performing communication with the label printer 100 under the control of the control unit 610 . Here, the correction data is data on the vertical and horizontal movements of the label paper, that is, distortion. The distortion information may be determined based on the reference value for the blank space.

The control unit 610 performs overall control operations of the communication interface unit 600, the label printing automatic correction unit 620 and the storage unit 630 of FIG. For example, when a captured image of a captured image, ie, a video frame, is provided from the photographing device 110 , the controller 610 may store the captured image in the storage 630 . Then, the stored photographed image may be called and provided to the label printing automatic correction unit 620 .

In addition, the control unit 610 controls the communication interface unit 600 to provide the correction data to the label printer 100 when correction data is provided as an analysis result of the photographed image from the label printing automatic correction unit 620 . For example, when the photographing operation is performed in real time in the photographing apparatus 110, the image comparison operation may be performed at predetermined time intervals. This is to reduce power consumption and computational processing burden. For example, when 60 video frames are generated per second, the controller 610 may compare images once every 0.5 seconds. Accordingly, the correction data may be provided to the label printer 100 for correction.

For example, the label printing automatic calibration apparatus 120 according to an embodiment of the present invention may receive sensing data from the label printer 100 . Although it has been previously described that the label printer 100 directly performs the operation of the automatic label printing calibration device 120, the operation can be made based on the sensed data from the label printer 100 even if it is configured as a separate device. . For example, when data from the impact sensor is received, the controller 610 may perform a photographing operation based on the impact signal, and analyze the received photographed image to generate correction data. Alternatively, the control unit 610 may be based on the amount of impact when generating correction data by movement. In this way, the accuracy of the calibration data can be increased. For example, the label printer 100 may be provided with impact sensors in four directions of east, west, south, and north, respectively. Therefore, it is possible to determine the direction of movement and determine the degree of correction when generating the correction data according to which part has the largest impact.

Also, the control unit 610 may generate correction data based on an acceleration sensor or a direction sensor of the label printer 100 . Of course, it is possible to generate correction data based only on the sensing data of the corresponding sensors, but the captured image of the photographing device 110 may be further used. For example, the movement of the label printer 100 due to an external impact may be corrected through a sensor. On the other hand, it is impossible to detect the aging of parts such as internal rollers through the sensor rather than external impact. Therefore, when the sensing signal of the shock sensor, the acceleration sensor, and the direction sensor is normal, the control unit 610 determines that replacement of the internal parts is necessary when the printing defect state of the barcode label paper is determined through the photographing device 110 Of course, the control unit 610 is involved in this operation.

The label printing automatic correction unit 620 sets a reference value. To this end, as shown in FIG. 2B , upper and left margin values are set based on the printed label of the label paper. Since it is a label paper, you may consider only the label. Also, set the limit deviation value. For example, if the deviation is more than 2mm, it is corrected by 2mm. Furthermore, the maximum distortion value is set. In case of deviation more than a set value, it is for the purpose of stopping the equipment, not correcting it.

In addition, the label printing automatic correction unit 620 receives the photographed image of the printed label from the photographing device 110 to find the upper and left margins of the paper-based printed matter in the photographed image. And it is compared with the set reference value to determine whether the paper is warped. As shown in Fig. 2c, when the deviation exceeds the limit value, the correction value is adjusted. Check the correction value and the current deviation value, and if the maximum deviation value is exceeded, the equipment is stopped and an alarm is generated to receive confirmation from the operator.

In addition, the automatic label printing correction unit 620 may perform an operation of generating correction data based on sensing data of a sensor provided in the label printer 100 according to the intention of an administrator or a program designer. Typically, when there is no data such as an impact sensor, if the paper is warped, it is judged as an abnormal operation of internal parts such as rollers. In this case, the manager of the production line or the person in charge of the labeling process may be notified of the relevant facts.

In an embodiment of the present invention, it is preferable that the label printing automatic correction unit 620 determines the printing state defect according to internal and external factors occurring in the label printer 100, and in this regard, the photographing device 110 is installed outside In addition, an impact sensor may be installed in the label printer 100 or its vicinity, and further, it may be preferable to mount an acceleration sensor or a direction sensor in the label printer 100 . The detailed operation may be slightly different depending on the type of system configuration, and therefore, the embodiment of the present invention will not be limited to any one type.

In addition to the above, the communication interface unit 600, the control unit 610, the label printing automatic correction unit 620 and the storage unit 630 of FIG. 6 may perform various operations, and other details are described above would like to be replaced with

The communication interface unit 600, the control unit 610, the label printing automatic correction unit 620 and the storage unit 630 of FIG. 6 according to an embodiment of the present invention are composed of hardware modules physically separated from each other, but each module may store software for performing the above operation therein and execute it. However, since the software is a set of software modules, and each module can be formed of hardware, it will not be particularly limited to the configuration of software or hardware. For example, the storage unit 630 may be a hardware storage (storage) or a memory (memory). However, since it is possible to store information in software (repository), it will not be particularly limited to the above.

Meanwhile, as another embodiment of the present invention, the control unit 610 may include a CPU and a memory, and may be formed as a single chip. The CPU includes a control circuit, an arithmetic unit (ALU), a command interpreter and a registry, and the memory may include a RAM. The control circuit performs a control operation, the operation unit performs an operation operation of binary bit information, and the instruction interpretation unit converts a high-level language into a machine language and a machine language into a high-level language, including an interpreter or compiler. , the registry may be involved in software data storage. According to the above configuration, for example, at the beginning of the operation of the automatic label printing correction apparatus 120, the program stored in the automatic label printing correction unit 620 is copied, loaded into a memory, that is, RAM, and then data is calculated by executing it. The processing speed can be increased quickly.

7 is a flowchart illustrating a label printing automatic calibration process according to an embodiment of the present invention.

Referring to FIG. 7 together with FIG. 1 for convenience of explanation, the label printer 100 or the automatic label printing correction device 120 sets a position reference value (S700). To this end, the upper and left margin values are set based on the printed matter of the paper (see Fig. 2b). Set the limit deviation value (eg, 2mm correction if more than 2mm deviation). Also set the maximum deviation value (e.g., to stop the equipment, not to correct it if there is more than a set value).

Then, the label printer 100 issues, that is, prints the label (S710). To this end, the label printer 100 calls the stored calibration values (eg, initial top: 0, left: 0). After that, a label is issued by reflecting the correction value.

Next, a correction operation is performed by the vision camera shooting and label printing automatic correction device 120 by the imaging device 110 (S720 ~ S740). Of course, since the correction operation may be performed in the photographing device 110 or the label printer 100, this is not discussed, and it will be described as being performed in the label printing automatic correction device 120 .

More specifically, the printed label is photographed with a vision camera. Then, in the photographed image, the upper and left margins of the paper-based print are found. It is compared with the set reference value to determine whether the paper is warped. If the deviation exceeds the limit value, adjust the correction value. Check the correction value and the current deviation value, and if the maximum deviation value is exceeded, the equipment is stopped and an alarm is generated to receive confirmation from the operator. Label vision inspection can be performed based on the captured image (optional).

Then, the next label is issued, and the process returns to step S710 and repeats the work (S750).

8 is a flowchart of a driving process of the automatic label printing correction device of FIG. 1 .

Referring to FIG. 8 together with FIG. 1 for convenience of explanation, the label printing automatic correction device 120 according to an embodiment of the present invention is provided in the production line of the product and is attached to the product directly or indirectly (eg, on a packaging box) A position reference value for a printout (eg, a QR code or barcode, etc.) or a print target of the label paper output from the label printer 100 that prints the label to be used is set ( S800 ). Here, as the position reference value, reference values for the left and upper margins of the printed matter on the paper (refer to FIG. 2B ), a limitable deviation value that can be corrected, and a maximum deviation value may be set. Accordingly, the correction is made between the limit deviation value and the maximum deviation value, and when the maximum deviation value is exceeded, the posture of the equipment may be corrected by stopping the equipment.

The label printing automatic correction device 120 is provided around the label printer 100 to receive a photographed image from a photographing device for photographing the label paper printed and output from the label printer 100, the label paper included in the photographed image. It is determined whether the state deviates from the set position reference value, and when the determination result deviates from the reference value, correction data of the label adjustment value is provided to the label printer 100 so that the label is printed based on the label adjustment value (S810).

Of course, in addition to the above, the automatic label printing correction apparatus 120 can perform various operations, and since the other detailed information has been sufficiently described above, it will be replaced with the contents.

On the other hand, even though it has been described that all components constituting the embodiment of the present invention are combined or operated in combination, the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all the components may operate by selectively combining one or more. In addition, all of the components may be implemented as one independent hardware, but a part or all of each component is selectively combined to perform some or all of the combined functions in one or a plurality of hardware program modules It may be implemented as a computer program having Codes and code segments constituting the computer program can be easily inferred by those skilled in the art of the present invention. Such a computer program is stored in a computer-readable non-transitory computer readable media, read and executed by the computer, thereby implementing an embodiment of the present invention.

Here, the non-transitory readable recording medium refers to a medium that stores data semi-permanently and can be read by a device, not a medium that stores data for a short moment, such as a register, cache, memory, etc. . Specifically, the above-described programs may be provided by being stored in a non-transitory readable recording medium such as a CD, DVD, hard disk, Blu-ray disk, USB, memory card, ROM, and the like.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and it is common in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Various modifications may be made by those having the knowledge of, of course, and these modifications should not be individually understood from the technical spirit or perspective of the present invention.

100: label printer 110: photographing device
120: label printing automatic calibration device 600: communication interface unit
610: control unit 620: label printing automatic correction unit
630: storage

Claims (6)

a label printer provided on a product production line to print a label directly or indirectly attached to the product;
a photographing device provided in the vicinity of the label printer to photograph the label paper printed and output from the label printer; and
Set a position reference value for the printed out label paper, determine whether the state of the label paper included in the photographed image taken by the photographing device deviates from the set position reference value, and adjust the label when the determination result deviates from the reference value A label automatic correction device for providing correction data of the label adjusted value to the label printer so that the label is printed based on the set value;
The automatic label correction device, when generating the correction data of the label adjusted value, generates based on the sensing data of the impact sensor for determining whether the impact of the label printer,
When it is determined that there is no impact to the label printer based on the sensing data of the impact sensor, the label automatic correction device requests the operator to replace parts,
The automatic label correction device stores reference data for a reference image when the label is normally printed, and periodically stores the reference data for the reference image when the label printer moves while the photographing device is fixed. Label printing automatic calibration system that is updated with According to claim 1,
The label automatic correction device sets the upper and left margin values based on the printed matter of the label paper, sets the limit deviation value and the maximum deviation value, respectively, to generate the label adjusted value based on the limit deviation value Label printing automatic calibration system. 3. The method of claim 2,
The automatic label correction device, when out of the maximum deviation value, the label printing automatic correction system for stopping the operation of the label printer and notifying an alarm to the operator. delete delete According to claim 1,
The automatic label correction apparatus is a label printing automatic correction system for generating the correction data by determining a correction range of the sensing data of the speed sensor and the direction sensor provided in the label printer when the correction data is generated.

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