KR101746687B1 - A Smart tag sensing system and a method for using the same - Google Patents

Abstract

An embodiment of the present invention provides a smart tag recognition system for irradiating an infrared ray laser to an infrared ray sensitive tag in which a cord is formed using a material for emitting infrared rays after absorbing infrared rays and using emission light by the infrared ray laser, . The smart tag recognition system using an infrared sensitive code according to an embodiment of the present invention includes an infrared sensitive tag attached to a recognition object and made of a code formed in the background and background, and a function of irradiating infrared rays to the surface of the infrared sensitive tag And an imaging unit for receiving and recognizing the emitted light from the infrared light source unit and the infrared sensitive tag, and the cord is formed of a material for emitting the emitted light after absorbing infrared rays.

Description

Technical Field [0001] The present invention relates to a smart tag recognition system using an infrared sensitive code and a recognition method using the same,

The present invention relates to a smart tag recognition system using an infrared sensitive code and a method of recognizing the same. More particularly, the present invention relates to a smart tag recognition system using an infrared sensitive light source for irradiating an infrared sensitive tag, A smart tag recognition system using the emitted light, and a recognition method therefor.

In general, a recognition system using a visual barcode or the like is widely used for tracking products in the field of distribution and grasping basic product information, and in recent years, these codes are used in factories to supply necessary parts in place And to automate the process of management. When used for factory automation, a device for acquiring image data for a code displayed on a part or the like and an apparatus for analyzing the image data are installed in a one-to-one correspondence structure.

A CCD or a CMOS is used as a device for recognizing a code such as a bar code. CCD is one of digital cameras and it is a digital data conversion device by converting image into electric signal using charge coupled device. CMOS is a solid state image pickup device using a complementary metal oxide semiconductor. Although a photodiode is used in the same manner as a CCD, a manufacturing process and a signal reading method are different from each other.

In recent years, RFID, which is a device that stores product information and transmits data wirelessly by storing antennas on an extremely small chip, is used. However, it is still not suitable for a large-scale use of RFID in terms of cost.

The enlargement of the recognition distance range in the recognition system such as the bar code significantly improves the value of the recognition system. In order to enlarge the recognition distance range, there is a need for a technique for enlarging the depth of field, which means the distance range of the subject distance measured in the focused state. The present invention is a technique for enlarging the depth of field .

Korean Patent No. 10-0784200 discloses a method and apparatus for reading a code including code information according to an image, hereinafter referred to as Prior Art 1), an image pickup module for picking up a code and an image pickup module A code information reading module for recognizing the code in the captured image and reading the code information of the code, wherein the code includes at least one data image having a data value, and the code information reading module reads the area, shape , And color, and reads the code information.

The conventional art 1 uses the general local illumination when recognizing the code information, so that it is difficult to accurately recognize and read the image by reducing the brightness ratio at a recognition range over a certain range, and to solve the problem, .

In addition, since the conventional art 1 uses illumination in the visible light range, it has a second problem that even if the recognition rate is lowered due to light interference which may occur when working in various environments, it can not be coped with.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. There will be.

According to an aspect of the present invention, there is provided an infrared sensor comprising: an infrared sensor mounted on a recognition object and including a background and a code formed on the background; a function of irradiating an infrared ray on a surface of the infrared sensor; And an imaging unit for receiving and recognizing the emitted light from the infrared sensitive tag, wherein the code is formed of a material that emits the emitted light after absorbing the infrared rays. Tag recognition system.

In an exemplary embodiment of the present invention, the image sensing unit may further include a color filter for filtering the emitted light emitted from the IR tag to improve a brightness ratio of the code and the background.

In the embodiment of the present invention, the color filter may pass only light having a wavelength band of emitted light emitted from the infrared-sensitive tag.

In the embodiment of the present invention, the imaging unit may further include an apparatus for internally recognizing only light in a specific wavelength band by an algorithm.

In an embodiment of the present invention, the wavelength of the emitted light emitted by the infrared sensitive tag may be the wavelength of the visible light region.

In an embodiment of the present invention, the wavelength of the infrared ray irradiated by the infrared light source part may be 700 nm or more.

In an embodiment of the present invention, the wavelength of the infrared ray irradiated by the infrared light source unit may be 1400 or more and 1500 nanometers (nm) or less.

In the embodiment of the present invention, the infrared light source unit may have a function of controlling the wavelength of the irradiated light ray.

In an embodiment of the present invention, the shape of the formed code of the infrared sensor tag may be a bar code or a square code (QR code).

In an embodiment of the present invention, the background may be formed in black color.

In the embodiment of the present invention, the background may be formed such that its hue is the same as the hue of the code in the infrared unirradiated state.

In an embodiment of the present invention, a smart tag recognition system using an infrared sensitive code may include a position sensor that detects a position or a moving state of the recognition object to which the infrared sensitive tag is attached and transmits a signal for driving the infrared light source unit .

According to another aspect of the present invention, there is provided an infrared sensor comprising: an infrared sensor tag attached to an object to be recognized and having a code formed by a material that absorbs infrared rays and emits emitted light; An infrared light source unit having a function of irradiating a light beam, an imaging unit for receiving and recognizing the emitted light from the infrared sensor tag, and a function for processing information of the infrared sensor tag recognized by the imaging unit and storing or utilizing the processed information And a server including the server and the smart tag recognition processing system using the infrared sensitive code.

According to another aspect of the present invention, there is provided an infrared sensor comprising: an infrared sensor tag attached to an object to be recognized and having a code formed by a material that absorbs infrared rays and emits emitted light; An imaging module having a plurality of imaging units for receiving and recognizing the emitted light from the infrared sensitive tag and a color filter for filtering the emitted light emitted by the infrared sensitive tag, And a color filter provided in each of the imaging units passes only light having a predetermined wavelength. The smart tag recognition system using the infrared sensitive code capable of processing a multicolor code.

In an embodiment of the present invention, a smart tag recognition system using an infrared sensitive code that can process a multicolor code may detect a position or a moving state of the recognition object to which the infrared sensitive tag is attached, so that the infrared light source unit is driven And a position sensor for transmitting a signal.

In an embodiment of the present invention, a smart tag recognition system using an infrared sensitive code that can process a multicolor code includes a function of processing information of the infrared sensitive tag recognized by the image sensing unit and storing or utilizing the processed information The server may further include a server.

According to another aspect of the present invention, there is provided a method of detecting an object to be recognized, comprising the steps of: i) attaching an infrared sensitive tag to the object to be recognized, the infrared sensitive tag having a code formed by a material for emitting infrared light after absorbing infrared rays; Detecting a position or a moving state of the infrared ray sensor by a position sensor, iii) transmitting a signal from the position sensor to the infrared ray source unit, the infrared ray source unit irradiating an infrared ray to the infrared ray tag, and iv) And a step in which the infrared sensitive tag emits the emitted light and is recognized by the image sensing unit. The smart tag recognition method using the infrared sensitive code is provided.

In the embodiment of the present invention, the step (i) may be performed by printing the shape of the code with an inkjet printer using ink containing a material that absorbs infrared light and emits the emitted light.

In an embodiment of the present invention, after the step iv) is performed, the image sensing unit may process information of the infrared sensing tag recognized and store or utilize the processed information.

In the step iv), a color filter for improving a brightness ratio of the code and the background may be provided in the image sensing unit, and filtering the emitted light emitted from the infrared sensing tag may be performed.

The step iv) may be performed by an imaging module having a plurality of imaging units.

In the step iv), the color filter provided in each of the image pickup units may be performed while passing only light having a predetermined wavelength.

The present invention irradiates an infrared laser with a tag on which a code is formed and causes the tag to emit the emitted light so that the brightness ratio for recognition is significantly increased and accurate recognition and reading are possible even at a considerable distance, The present invention has a first effect that the present invention can be applied to the above-described first embodiment.

INDUSTRIAL APPLICABILITY The present invention has a second effect that the depth of field can be increased by increasing the brightness ratio without using an expensive imaging device, thereby reducing the facility cost.

Since the infrared light source is used in place of the general local illumination, the present invention has the third effect that the recognition rate can be maintained constantly without occurrence of light interference which may occur when working in various environments.

The present invention has a fourth effect that a code can be formed on a tag in various colors and shapes, and recognition and reading are performed by an image pickup module composed of a plurality of image pickup units, and various information can be quickly processed.

Further, unlike the prior art in which the local illumination is continuously operated, the present invention operates the infrared light source unit only when necessary, and has a fifth effect superior in energy efficiency.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

1 is a schematic diagram of a smart tag recognition system using an infrared sensitive code according to an embodiment of the present invention.
2 is a view showing an embodiment of the infrared sensitive tag of the present invention.
FIG. 3 is a graph illustrating the intensity of emitted light emitted from a code of an infrared-sensitive tag when the infrared-ray light source unit irradiates the infrared-sensitive tag with a light beam according to an embodiment of the present invention.
4 is a schematic diagram of a smart tag recognition system using an infrared sensitive code that can be processed for a multicolor code in accordance with an embodiment of the present invention.
5 is a flowchart of a smart tag recognition method using an infrared sensitive code according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" (connected, connected, coupled) with another part, it is not only the case where it is "directly connected" "Is included. Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

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

FIG. 1 is a schematic view of a smart tag recognition system using an infrared sensitive code according to an embodiment of the present invention, and FIG. 2 is a diagram illustrating an embodiment of the infrared sensitive tag 100 of the present invention.

1, a smart tag recognition system using an infrared sensitive code includes an infrared sensitive tag 100 that is attached to a recognition object and is composed of a code 110 formed in a background 120 and a background 120, An infrared light source unit 200 having a function of irradiating an infrared ray to the surface of the tag 100 and an image sensing unit 310 for receiving and recognizing the emitted light from the infrared sensor tag 100, 110 may be formed of a material that absorbs infrared light and emits emitted light.

As shown in FIG. 2, the infrared-sensitive tag 100 is formed of a code 110 and a background 120. Here, the cord 110 may be formed of a material that emits the emitted light after absorbing the infrared rays, or may be formed in the background 120 by leaving the cord 110 portion in reverse. Hereinafter, The infrared-sensitive tag 100 in which the infrared-ray sensor 110 is formed will be described with reference to FIG. This criterion will be desirable when considering costs and the like.

The material for emitting the emitted light after absorbing the infrared rays forming the code 110 of the infrared sensitive tag 100 is a material that absorbs the infrared rays and emits the light rays. The material is reversible by infrared rays only at the position where the infrared light source is incident Means a substance that emits light self-luminously. Specifically, the infrared-sensitive material may be a two-photon absorption material, a second harmonic generation material, an upconversion by excited state absorption material, An upconversion by sensitized energy transfer by an electron beam, an upconversion by cooperative luminescence by a coherent light emission, and an upconversion by photon avalanche by a photon incident.

In the embodiment of the present invention, the infrared ray tag 100 is irradiated with an infrared ray. However, the present invention is not limited thereto. In a process including only a robot without human involvement, An ultraviolet ray or the like may be irradiated to a tag formed with a cord 110 that is sensitive to ultraviolet rays or the like.

The image sensing unit 310 may further include a color filter 320 for filtering the emitted light emitted from the infrared sensor 100 to improve the brightness ratio of the code 110 and the background 120. [

The image pickup unit 310 opened without the color filter 320 receives not only the emitted light emitted by the cord 110 but also various reflected light reflected from the background 120 or the surface of the recognition target 10. Such reflected light may interfere with the emitted light emitted by the code 110, thereby reducing the brightness ratio of the code 110 and the background 120. [

Since the brightness ratio is improved by the color filter 320, it is possible to recognize and read a large recognition target 10 that requires a considerable range of recognition distance.

In the embodiment of the present invention, the color filter 320 is fixed to the image pickup unit 310, but the present invention is not limited thereto. The color filter 320 is made of a material having a different property according to the change of current, and the wavelength of the light passing through the color filter 320 can be variably controlled by controlling the applied current. Alternatively, the plurality of color filters 320 may be combined into a single color filter module, and the wavelength of light passing through the color filter module may be variably controlled.

The color filter 320 can pass only light having a wavelength band of emitted light emitted by the infrared-sensitive tag 100.

The filtering to prevent the reduction of the brightness ratio of the code 110 and the background 120 is not limited to the visible light region for a specific color but the infrared sensitive tag 100 can transmit specific information by color, A color filter 320 that allows only the emitted light of a specific wavelength band to pass therethrough may be used in order to allow the imaging unit 310 to recognize information about the selected color filter.

The color filter 320 may be manufactured by applying a material that allows only light having a specific wavelength band to pass through a plate formed of glass or a synthetic resin of a transparent material or the like.

In the embodiment of the present invention, the color filter 320 is provided in the image pickup unit 310 to perform filtering, but the present invention is not limited thereto.

The image sensing unit 310 may further include therein an apparatus that can recognize only light in a specific wavelength band by an algorithm. (Hereinafter referred to as "internal apparatus")

The internal device may serve as a color filter 320 and may have an algorithm that first analyzes the wavelength of light and then passes the light if it is determined that the wavelength of the analyzed light is appropriate. At this time, the passage and blocking of light can be performed by a lens of an internal device in which the wavelength of light that can be transmitted by current or voltage is controlled.

Specifically, when the image sensing unit 310 sequentially recognizes red, green, and blue (RGB) with a time difference using a CCD camera, an algorithm is configured to pass only the color of a specific wavelength at a specific moment, .

The wavelength of the emitted light emitted by the infrared-sensitive tag 100 may be the wavelength of the visible light region.

Means that the emitted light emitted by the infrared sensitive tag 100 can be recognized as a hue at a wavelength in the visible light region and information specific to the emitted light hue is given thereto, It is possible to control the recognition target 10. Specifically, the present invention can be applied to processes such as moving the recognition target 10 in a sector corresponding to each color by color, or selecting the recognition target 10 of a specific color by the robot.

The wavelength of the infrared ray irradiated by the infrared light source unit 200 may be 700 nm or more.

Since the infrared ray having a wavelength of 700 nm or more is used in general electronic equipment such as a TV remote control, the infrared ray source 200 capable of irradiating an infrared ray having a wavelength of 700 nm or more is easily supplied and received. Therefore, the cost of the process can be reduced by selecting an inexpensive infrared light source unit 200 that meets the conditions of use.

The wavelength of the infrared ray irradiated by the infrared light source unit 200 may be 1400 or more and 1500 nanometers (nm) or less.

If the infrared ray is 1400 or more but less than 1500 nanometers (nm), it does not cause eye damage even if irradiated to the human eye. Accordingly, in a working environment where human movement is frequent, a safe working environment can be established when the wavelength of the light of the infrared light source unit 200 is maintained at 1400 to 1500 nanometers (nm) or less.

The infrared light source unit 200 may have a function of controlling the wavelength of the light to be irradiated.

Since the sensitivity of the material forming the cord 110 can be changed according to the wavelength of the light, a light having a wavelength of a certain wavelength can be irradiated to a material having a high sensitivity. Furthermore, it is possible to include a system for storing information on the type of the infrared-ray-sensitive tag 100 in advance and adjusting the wavelength of the light beam irradiated by the infrared light source unit 200 automatically according to the information.

In the infrared sensitive tag 100, the shape of the formed code 110 may be a bar code or a square code (QR code).

In the embodiment of the present invention, the form of the code 110 is bar code or square code (QR code), but the present invention is not limited thereto. The code 110 may be a data matrix matrix or Maxicode. [0033] The term " matrix "

The code 110 may be formed to be recognized as black or non-black in the non-irradiated state.

The background 120 may be formed in a color other than white or white, in particular, a black color. In general, a tag is formed by removing a background 120 from a white background 120 to remove interference caused by reflected light reflected from a white background 120 surface, while a background 120 is formed of a white color and a code 110 is formed of another color. In particular, when the background is formed in a black color, the reflected light of the background portion is minimized, and furthermore, the brightness contrast with the code can be maximized.

Furthermore, if the color of the background is formed to be the same as the color of the code in the infrared unirradiated state (under normal visible light illumination), the information of the code can be concealed. That is, the security of the code information can be ensured. This is an effect that can be realized in the present invention, independently of the fact that the emission color of the code in the infrared irradiation state is significant. In the embodiment of the present invention, when the emission color of the code in the infrared irradiation state is first determined, the color of the code material having such emission color is the same as the color in the non- You can choose a background color.

 The smart tag recognition system using an infrared sensitive code includes a position sensor 400a for sensing a position or a moving state of the recognition target 10 to which the infrared sensitive tag 100 is attached and transmitting a signal for driving the infrared light source unit 200, 400b.

As the position sensors 400a and 400b, a magnetic proximity switch or an optical photoelectric switch can be used, and various sensors can be used without being limited thereto.

Since the recognition target 10 may be moved by the robot to move on the conveyor belt or to be fixed to the jig, if the recognition target 10 is moved to the designated position and is fixed, the position sensors 400a and 400b detect the signals, And transmits the infrared light to the infrared light source unit 200 so that the infrared light can be irradiated to the infrared light sensitive tag 100.

The smart tag recognition processing system using an infrared sensitive code includes an infrared sensitive tag 100 attached to a recognition target 10 and formed with a cord 110 as a material for emitting infrared rays after absorbing infrared rays, An imaging unit 310 for receiving and recognizing the emitted light from the infrared sensitive tag 100; and an infrared sensor 300 for recognizing the infrared ray sensed by the sensing unit 310, And a server 500 having a function of processing information of the tag 100 and storing or utilizing the processed information.

The smart tag recognition processing system using the infrared sensitive code can be applied as a part of the Manufacturing Execution System Shop Floor (MES). In this case, the information processed by the server 500 is transferred to the next process apparatus, . Specifically, the smart tag recognizing process is performed before the assembling process, the recognition target 10 is inserted into the line of the specific assembling process by the recognized information, and in accordance with the information of the infrared sensitive tag 100 in the assembling process The assembly sequence is determined and the assembly can be sequentially performed by the robot. Furthermore, the information may be used in the stage of classification and management after the assembling process.

3 is a graph illustrating the intensity of emitted light emitted by the code 110 of the infrared sensitive tag 100 when the infrared light source 200 irradiates the infrared sensitive tag 100 with a light beam according to an embodiment of the present invention. 3 (a) is a graph of infrared intensity with time when the infrared light source unit 200 is operated and stopped, and FIG. 3 (b) Is a graph of the intensity of the emitted light emitted by the cord 110 upon irradiation and interruption of the infrared ray by the light source 200.

As shown in FIG. 3, when the infrared ray source 200 irradiates the infrared ray 110 with the infrared ray at a predetermined intensity, the intensity of the emitted light radiated from the code 110 is initially measured at a maximum value temporarily, The measurement value may be gradually decreased. And, if the irradiation of the infrared ray is stopped, the measured value can be reduced rapidly.

With this characteristic, the emitted light of a degree sufficient to be recognized by the imaging unit 310 can be emitted from the cord 110 by using the infrared ray of the infrared ray source unit 200 which is temporarily irradiated. Therefore, since the infrared light source unit 200 does not need to continuously irradiate the infrared ray, it can be excellent in energy efficiency.

4 is a schematic diagram of a smart tag recognition system using an infrared sensitive code that can be processed for a multicolor code in accordance with an embodiment of the present invention. (The imaging module 300 is an aggregate of a plurality of imaging units 310 and is indicated by a dashed line.)

As shown in FIG. 4, a smart tag recognition system using an infrared sensitive code that can process a multicolor code is a material attached to a recognition object 10 and emitting infrared light after absorbing infrared rays, An infrared light source unit 200 having a function of irradiating an infrared ray on the surface of the infrared sensitive tag 100, an imaging unit 100 for receiving and recognizing the emitted light from the infrared sensitive tag 100 And a color filter 320 for filtering the emitted light emitted by the infrared sensitive tag 100. The color filter 320 may be provided in each of the image pickup units 310, 320 may pass only light having a predetermined wavelength.

The plurality of recognition targets 10 can be quickly recognized by the imaging module 300 having a plurality of imaging units 310 for passing light of different wavelength bands. Furthermore, even if a plurality of infrared-sensitive tags 100 are attached to one recognition target 10 or a cord 110 is formed by a plurality of materials that emit emission lights of different wavelengths to the infrared-sensitive tag 100, Module 300 as shown in FIG.

The infrared light source unit 200 can change the irradiation angle so as to irradiate a plurality of infrared-sensitive tags 100 with infrared rays, and can be installed in a plurality of units according to the work characteristics.

The image pickup unit 310 of the image pickup module 300 may be arranged in a row or a rectangle so as to be applicable to various applications. The angle of each imaging unit 310 in the array of a row or a rectangle may be changed according to the type in which the infrared-sensitive tag 100 is recognized. Specifically, when there is one recognition target 10, the angle can be controlled so that the optical axis of each imaging unit 310 intersects with the target code 110, and there are several recognition targets 10, It is possible to control the angle so that the optical axes of the respective image pickup units 310 are parallel to each other.

A smart tag recognition system using an infrared sensitive code that can process a multicolor code detects a position or a moving state of a recognition target 10 to which the infrared sensitive tag 100 is attached and outputs a signal for driving the infrared light source unit 200 And may further include position sensors 400a and 400b for transmitting.

A smart tag recognition system using an infrared sensitive code that can process a multicolor code includes a function of processing information of the infrared sensitive tag 100 recognized by the image sensing unit 310 and storing or utilizing the processed information And may further include a server 500.

5 is a flowchart of a smart tag recognition method using an infrared sensitive code according to an embodiment of the present invention.

The smart tag recognition method using the infrared sensitive code as shown in FIG. 5 will be described.

First, an infrared sensitive tag 100, in which a code 110 is formed as a material emitting infrared light after absorbing infrared rays, may be attached to a recognition object 10. (S10)

Here, the first step S10 may be performed by printing the shape of the code 110 by an inkjet printer using ink containing a material for emitting the emitted light after absorbing infrared rays.

Since the cord 110 is formed by an inkjet printer, the infrared-sensitive tag 100 can be manufactured at low cost. Since the ink jet printer uses a method of ejecting ink, the above material can be uniformly printed on the infrared sensitive tag 100.

Second, the position sensors 400a and 400b can detect the position or the moving state of the recognition target 10. (S20)

Thirdly, a signal is transmitted from the position sensors 400a and 400b to the infrared light source unit 200 so that the infrared light source unit 200 can irradiate the infrared light tag to the infrared sensitive tag 100. (S30)

Fourth, the infrared-sensitive tag 100 to which the infrared ray is irradiated can emit the emitted light and can be recognized by the image sensing unit 310. (S40)

In this case, after the fourth step S40 is performed, the image sensing unit 310 may process the information of the infrared sensing tag 100 recognized by the sensing unit 310 and store or utilize the processed information.

In the fourth step S40, a color filter 320 for improving the brightness ratio of the code 110 and the background 120 is provided in the image sensing unit 310 to filter the emitted light emitted from the infrared sensitive tag 100 . ≪ / RTI >

And the fourth step S40 may be performed by the imaging module 300 having a plurality of imaging units 310. [

In the fourth step S40, the color filter 320 provided in each of the image pickup units 310 may be performed while passing only light having a predetermined wavelength.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10: Recognized object 100: Infrared sensing tag
110: Code 120: Background
200: infrared light source unit 300: imaging module
310: image pickup unit 320: color filter
400a, 400b: Position sensor 500: Server

Claims (22)

A smart tag recognition system using an infrared sensitive code,
An infrared sensitive tag attached to a recognition target, the infrared sensitive tag comprising a background and a code formed in the background;
An infrared light source unit having a function of irradiating a surface of the infrared sensitive tag with an infrared ray;
An imaging unit for receiving and recognizing the emitted light having a wavelength of visible light region emitted from the infrared sensitive tag; And
A color filter provided in the image pickup unit for filtering the emitted light to improve a brightness ratio of the code and the background;
, ≪ / RTI >
Wherein the code is formed of a material that absorbs infrared rays and emits the emitted light,
The color filter is provided in the image pickup unit to control the wavelength of light passing therethrough while adjusting the current applied to the color filter,
The control unit controls the image pickup unit to match the color of the emitted light recognized by the image pickup unit with the classification information according to the type of the recognition target and to classify and move the recognition target according to the color of the emission light matched with the classification information A smart tag recognition system using an infrared sensitive code.
delete The method according to claim 1,
Wherein the color filter passes only light having a wavelength band of emitted light emitted by the infrared sensitive tag.
The method according to claim 1,
Wherein the imaging unit further includes an apparatus for internally recognizing only light in a specific wavelength band by an algorithm according to an algorithm.
delete The method according to claim 1,
Wherein a wavelength of an infrared ray irradiated by the infrared light source unit is 700 nanometers (nm) or more.
The method of claim 6,
Wherein a wavelength of an infrared light beam irradiated by the infrared light source unit is 1400 to 1500 nanometers (nm) or less.
The method according to claim 1,
Wherein the infrared light source unit has a function of controlling a wavelength of an irradiated light beam.
The method according to claim 1,
Wherein the infrared-sensitive tag has a bar code or a square code (QR code), the shape of the code being formed.
The method according to claim 1,
Wherein the background is formed of a black color.
The method according to claim 1,
Wherein the background is formed such that the hue is the same as the hue of the code in the infrared unirradiated state.
The method according to claim 1,
Further comprising a position sensor for sensing a position or a moving state of the recognition object to which the infrared sensitive tag is attached and transmitting a signal to drive the infrared light source unit.
A smart tag recognition processing system using an infrared sensitive code,
An infrared sensitive tag attached to an object to be recognized, the infrared sensitive tag having a code formed by a material that absorbs infrared light and emits the emitted light;
An infrared light source unit having a function of irradiating a surface of the infrared sensitive tag with an infrared ray;
An imaging unit for receiving and recognizing the emitted light having a wavelength of visible light region emitted from the infrared sensitive tag;
A color filter provided in the image pickup unit for filtering the emitted light to improve a brightness ratio of the code and the background;
A server for processing information of the infrared sensitive tag recognized by the image sensing unit and storing or utilizing the processed information;
, ≪ / RTI >
The color filter is provided in the image pickup unit to control the wavelength of light passing therethrough while adjusting the current applied to the color filter,
The control unit controls the image pickup unit to match the color of the emitted light recognized by the image pickup unit with the classification information according to the type of the recognition target and to classify and move the recognition target according to the color of the emission light matched with the classification information A smart tag recognition processing system using an infrared sensitive code.
A smart tag recognition system using an infrared sensitive code that can process a multicolor code,
An infrared sensitive tag attached to an object to be recognized, the infrared sensitive tag having a code formed by a material that absorbs infrared light and emits the emitted light;
An infrared light source unit having a function of irradiating a surface of the infrared sensitive tag with an infrared ray;
An imaging module including a plurality of imaging units for receiving and recognizing the emitted light having a wavelength of visible light region emitted from the infrared sensitive tag; And
A color filter for filtering the emitted light to improve a brightness ratio of the code and the background;
, ≪ / RTI >
Wherein the color filter provided in each of the imaging units passes only light having a predetermined wavelength,
The color filter is provided in the image pickup unit to control the wavelength of light passing therethrough while adjusting the current applied to the color filter,
The control unit controls the image pickup unit to match the color of the emitted light recognized by the image pickup unit with the classification information according to the type of the recognition target and to classify and move the recognition target according to the color of the emission light matched with the classification information A smart tag recognition system using an infrared sensitive code that can process a multicolor code.
15. The method of claim 14,
Further comprising a position sensor for sensing a position or a moving state of the recognition object to which the infrared sensitive tag is attached and transmitting a signal for driving the infrared light source unit to use the infrared sensitive code capable of processing for the multicolor code Smart tag recognition system.
15. The method of claim 14,
Further comprising a server having a function of processing the information of the infrared sensitive tag recognized by the image sensing unit and storing or utilizing the processed information, wherein the server includes a smart tag using an infrared sensitive code Recognition system.
A smart tag recognition method using an infrared sensitive code,
I) attaching an infrared sensitive tag to the recognition object, the infrared sensing tag having a code formed of a material that emits the emitted light after absorbing infrared rays;
Ii) detecting the position or movement state of the recognition object by the position sensor;
Iii) transmitting a signal from the position sensor to the infrared light source unit, wherein the infrared light source unit irradiates infrared light to the infrared sensitive tag; And
Iv) the infrared-sensitive tag to which the infrared ray is irradiated emits the emitted light in the wavelength region of visible light and is recognized by the image sensing unit;
, ≪ / RTI >
The step iv) includes a step of providing a color filter for improving a brightness ratio of the code and the background to the image pickup unit and filtering the emitted light,
The color filter is provided in the image pickup unit to control the wavelength of light passing therethrough while adjusting the current applied to the color filter,
The control unit controls the image pickup unit to match the color of the emitted light recognized by the image pickup unit with the classification information according to the type of the recognition target and to classify and move the recognition target according to the color of the emission light matched with the classification information A smart tag identification method using an infrared sensitive code.
18. The method of claim 17,
The method of claim 1, wherein the step (i) is performed by printing the shape of the code with an inkjet printer using an ink containing a material that emits the emitted light after absorbing the infrared ray. .
18. The method of claim 17,
Further comprising the step of processing the information of the infrared sensitive tag recognized by the image sensing unit after the step (iv) is performed, and storing or utilizing the processed information. .
delete 18. The method of claim 17,
Wherein the step (iv) is performed by an imaging module having a plurality of imaging units.
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