KR102419293B1 - RFID Reader Device With Improved Antenna Structure Only For Visually Impaired - Google Patents

Abstract

The present invention relates to an RFID reader device for visually impaired having an improved antenna structure, and more specifically, to an RFID reader device for visually impaired having an improved antenna structure, which is a miniaturized and lightweight necklace type RFID reader device which is portable and can be used both indoors and outdoors, and has an improved antenna structure, so that tag information of the RFID tag can be read at a short distance without direct contact with a place or object to which the RFID tag is attached, and transmits the read content of corresponding tag information to the user terminal to deliver the same to a user.

Description

RFID Reader Device With Improved Antenna Structure Only For Visually Impaired

The present invention is an RFID reader device for the visually impaired having an improved antenna structure. More specifically, it is a miniaturized and lightweight necklace-type RFID reader device that has good portability and can be used both indoors and outdoors, and has an improved antenna structure. It has an improved antenna structure that reads the tag information of the RFID tag at a short distance without direct contact with the place or object to which the RFID tag is attached, and transmits the read content of the tag information to the user terminal and delivers it to the user. It relates to an RFID reader device for the disabled.

RFID (Radio Frequency Identification), also called wireless identification, is an identification system that non-contactly reads stored data such as tags, labels, and cards with embedded semiconductor chips using radio frequency.

RFID tags can be divided into an active type that requires power depending on the presence or absence of power supply and a passive type that is operated by the reader's electromagnetic field without direct power supply from inside or outside (passive type). Active type has the advantage of reducing the power required for the reader and keeping the recognition distance from the reader. On the other hand, the passive type is very light and cheaper than the active type and can be used semi-permanently, but has a disadvantage in that the recognition distance is short.

The RFID reader has an electronic circuit part that sends and receives radio waves toward the tag. The microprocessor in the reader stores it in the memory, which is a memory device, converts the signal coming from the tag, verifies the signal of the data, and also has a transmission function. The antenna used in the reader may be included in the case together with the electronic circuit part that can send and receive radio waves, or it may be separated by itself. The size of the semiconductor chip has recently been developed up to the size of 0.4 mm. The size of the electronic tag varies depending on whether a battery is built-in or not and the frequency band.

As a conventional technology for the visually impaired using such RFID technology, as in Korean Patent Registration No. 10-1398065, there is a method of storing information and transmitting/receiving information of an RFID tag for a way guidance system for the visually impaired. However, with this conventional technique, it is difficult to actually solve the difficulty of finding one's own belongings with RFID tags attached indoors, or finding specific places such as toilets and exits in public places. This takes As such, there is no technology for practically solving the problems that visually impaired people experience in reality.

Republic of Korea Patent Registration No. 10-1398065 (2014.05.15.)

The present invention is an RFID reader device for the visually impaired having an improved antenna structure. More specifically, it is a miniaturized and lightweight necklace-type RFID reader device that has good portability and can be used both indoors and outdoors, and has an improved antenna structure. It has an improved antenna structure that reads the tag information of the RFID tag at a short distance without direct contact with the place or object to which the RFID tag is attached, and transmits the read content of the tag information to the user terminal and delivers it to the user. An object of the present invention is to provide an RFID reader device for the disabled.

In order to solve the above problems, an embodiment of the present invention provides an RFID reader device for the visually impaired having an improved antenna structure, comprising: a case separated into a front case and a rear case; An antenna unit located on the upper side of the inside of the case and capable of communicating with the RFID tag; a reader module located on the lower side of the case and capable of reading tag information of the RFID tag received from the antenna unit; a PCB unit attached to the reader module, located on the lower side of the case, and communicating with a user terminal; and a battery located above the reader module and the PCB unit in the case, located below the antenna unit, and supplying power to the antenna unit, the reader module, and the PCB unit. To the side, a collar member through which a leash can pass is attached, and a user can carry the RFID reader device by hanging it around their neck.

In one embodiment of the present invention, the antenna unit, an antenna; antenna holder; and a feed line; the antenna includes: an FPC-type substrate; and a metal pattern printed on the upper surface of the substrate, wherein the substrate is disposed inside the case with both ends bent, and the metal pattern includes: a right pattern formed to the right from an anode feeding point; and a left pattern formed to the left from the cathode feeding point.

In an embodiment of the present invention, the right pattern may include: a first right pattern disposed in a first width by crossing two or more concave portions and two or more convex portions to the right from the positive electrode feeding point; a second right pattern disposed in a right longitudinal direction from a terminal end of the last convex portion disposed in the first right pattern to a lower right vertex of the substrate with a second width; a third right pattern disposed in an upper height direction from the lower right vertex to the upper right vertex in a third width; and a fourth right pattern disposed in the left longitudinal direction by a predetermined length from the upper right vertex to a fourth width, wherein the left pattern includes two or more concave portions and two or more convex portions to the left from the cathode feeding point. a first left pattern intersected with a first width; a second left pattern disposed in the left longitudinal direction from the end of the last convex portion disposed in the first left pattern to the lower left vertex of the substrate with a second width; a third left pattern disposed in the upper height direction from the lower left vertex to the upper left vertex in a third width; and a fourth left pattern disposed in the right longitudinal direction by a predetermined length from the upper left vertex to a fourth width.

In one embodiment of the present invention, the antenna holder is a plastic material and is attached to the lower surface of the substrate to separate the space in which the substrate and the battery are arranged, and an antenna holder fixing screw for fixing the antenna holder and the front case is installed. It may include an incoming antenna fixing screw in hole.

In an embodiment of the present invention, the front case may include: a battery fixing guide for mounting the battery on the front case; a board fixing guide for mounting the board of the PCB unit to the front case; a board fixing hook for fixing the board of the PCB unit to the front case; two or more button holes in which the button part included in the PCB part protrudes to the outside of the case on the side surface of the front case; and a case fixing screw fastening hole to which a case fixing screw for fixing the front case and the rear case is fastened, wherein the front lanyard member may be attached to the upper surface of the front case.

In an embodiment of the present invention, the rear case may include: a reader pressing rib for fixing the reader module to the board of the PCB unit; a reader pressing cushion for preventing the reader module from shaking; a board pressing rib for fixing the board of the PCB unit to the rear case; a battery pressing rib for fixing the battery to the rear case; a battery pressing cushion to prevent shaking of the battery; and a case fixing screw-in hole into which a case fixing screw for fixing the front case and the rear case is inserted, and a rear collar member may be attached to an upper surface of the rear case.

In an embodiment of the present invention, the lower side of the case includes a charging terminal inlet hole into which a charging terminal capable of charging the battery is introduced, and the charging terminal inlet hole is a front charging terminal included in the front case. inlet hole; and a rear charging terminal input hole included in the rear case, wherein the charging terminal may be included in the PCB unit.

In an embodiment of the present invention, the PCB unit includes: a reader module communication unit connected to the reader module to receive read information of an RFID tag; a user terminal communication unit for transmitting read information of the RFID tag to the user terminal; and a button unit capable of operating the RFID reader device.

According to an embodiment of the present invention, by using an antenna using a flexible substrate, it is possible to reduce the size of the RFID reader device, and to exhibit the effect of realizing a radiation pattern having an optimal antenna efficiency in the form of a necklace. can

According to an embodiment of the present invention, by using a rechargeable battery, it is possible to exhibit the effect that the visually impaired can conveniently use the battery replacement.

According to an embodiment of the present invention, as a miniaturized and lightweight necklace-type RFID reader device, it is highly portable and can be carried anywhere indoors and outdoors.

According to an embodiment of the present invention, in consideration of the necklace-type RFID reader device that shakes frequently, the antenna, the reader module, the PCB, and members that allow the battery to be well fixed inside the case are used, thereby increasing the efficiency of the RFID reader device. It can exhibit the effect of improving durability.

According to an embodiment of the present invention, through the improved antenna structure, the RFID reader device does not directly contact the RFID tag, and it is possible to obtain tag information within 1M while moving.

According to an embodiment of the present invention, it is possible to easily identify a drug with an RFID tag in the house, thereby exhibiting the effect of preventing drug misuse accidents that frequently occur in the visually impaired.

According to an embodiment of the present invention, it is possible to easily grasp the location of the mobile phone to which the RFID tag is attached, thereby exhibiting the effect of preventing the loss of the mobile phone, which is essential for the visually impaired.

According to an embodiment of the present invention, it is possible to easily find the male and female toilets, the location of the elevator or the exit, etc. in a public place, so that when a visually impaired person goes out alone, it is possible to go out more safely and comfortably.

1 schematically shows a front portion and a rear portion of a case of an RFID reader device according to an embodiment of the present invention.
2 schematically shows the internal configuration of an RFID reader device according to an embodiment of the present invention.
3 schematically illustrates an execution step in which a user receives tag information of an RFID tag through an RFID reader device according to an embodiment of the present invention.
4 schematically shows the configuration of an antenna unit according to an embodiment of the present invention.
5 schematically shows an FPC-type substrate and a metal pattern engraved thereon according to an embodiment of the present invention.
6 schematically shows the configuration of a front case and a rear case according to an embodiment of the present invention.
7 schematically shows the configuration of a reader module, a PCB unit, and a battery according to an embodiment of the present invention.
8 schematically shows a three-dimensional radiation pattern of an antenna according to a frequency band according to an embodiment of the present invention.
9 schematically illustrates a two-dimensional radiation pattern of an antenna according to a radiation plane of the antenna according to an embodiment of the present invention.

Hereinafter, various embodiments and/or aspects are disclosed with reference to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth to provide a thorough understanding of one or more aspects. However, it will also be recognized by one of ordinary skill in the art that such aspect(s) may be practiced without these specific details. The following description and accompanying drawings set forth in detail certain illustrative aspects of one or more aspects. These aspects are illustrative, however, and some of various methods may be employed in the principles of the various aspects, and the descriptions set forth are intended to include all such aspects and their equivalents.

Further, various aspects and features will be presented by a system that may include a number of devices, components and/or modules, and the like. It is also noted that various systems may include additional apparatuses, components, and/or modules, etc. and/or may not include all of the apparatuses, components, modules, etc. discussed with respect to the drawings. must be understood and recognized.

As used herein, “embodiment”, “example”, “aspect”, “exemplary”, etc. may not be construed as an advantage or advantage in any aspect or design being described over other aspects or designs. . The terms '~part', 'component', 'module', 'system', 'interface', etc. used below generally mean a computer-related entity, for example, hardware, hardware A combination of and software may mean software.

Also, the terms "comprises" and/or "comprising" mean that the feature and/or element is present, but excludes the presence or addition of one or more other features, elements, and/or groups thereof. should be understood as not

Also, terms including an ordinal number, such as first, second, etc., may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

In addition, in the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are generally understood by those of ordinary skill in the art to which the present invention belongs. have the same meaning as 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 unless explicitly defined in an embodiment of the present invention, an ideal or excessively formal meaning is not interpreted as

Unless otherwise stated, “user” referred to below corresponds to the visually impaired, and the “user terminal” used by the user may be implemented as a computer or portable terminal that can access a server or other terminal through a network. have. Here, the computer includes, for example, a laptop, a desktop, a laptop, etc. equipped with a web browser (WEB Browser), and the portable terminal is, for example, a wireless communication device that guarantees portability and mobility. , Smartphone, PCS (Personal Communication System), GSM (Global System for Mobile communications), PDC (Personal Digital Cellular), PHS (Personal Handyphone System), PDA (Personal Digital Assistant), IMT (International Mobile Telecommunication)-2000, It may include all kinds of handheld-based wireless communication devices such as Code Division Multiple Access (CDMA)-2000, W-Code Division Multiple Access (W-CDMA), and Wireless Broadband Internet (Wibro) terminals.

1 schematically shows a front portion and a rear portion of a case of an RFID reader device according to an embodiment of the present invention.

Schematically, Fig. 1 (a) shows the front case 1000 of the RFID reader device of the present invention, and Fig. 1 (b) shows the rear case 2000 of the RFID reader device.

As shown in FIG. 1, a collar member 3000 through which a collar can pass is attached to the case of the RFID reader device, and through this, the RFID reader device can be carried like a necklace, and the case is the front case 1000. ) and a combination of the rear case 2000 .

Specifically, the RFID reader device of the present invention has a rectangular parallelepiped-shaped case with rounded corners, and a collar member 3000 is attached to the upper side of the case, and the collar is attached to the collar member 3000. It is made to be carried around the user's neck after passing through it. The RFID reader device of the present invention is a device that a visually impaired person should always have on their body.

1, the case of the RFID reader device has a configuration in which a front case 1000 of a front part and a rear case 2000 of a rear part are coupled to each other, the front case 1000 and the rear case 2000 is fixed with 4 case fixing screws. The four case fixing screws are respectively introduced into the case fixing screw entry holes 2600 located near the four corners of the rear case 2000 as shown in FIG. can be

A charging terminal input hole into which a charging terminal can be inserted is disposed on the lower side of the case, and a rechargeable battery 400 is provided inside the case. According to an embodiment of the present invention, by using the rechargeable battery 400, it is possible to exhibit the effect that the visually impaired can conveniently use the battery replacement.

The width of the case is preferably manufactured to be 60 mm to 70 mm, and more preferably, may be manufactured to be 66 mm or less. The height of the case is preferably manufactured to be 120 mm to 130 mm, and more preferably, may be manufactured to be 125 mm or less. The width of the case is preferably manufactured to be 25 mm to 35 mm, and more preferably, may be manufactured to be 29 mm or less. In addition, in order to reduce the weight, it is preferable that the front case 1000 and the rear case 2000 and members formed therein are made of a plastic material.

2 schematically shows the internal configuration of an RFID reader device according to an embodiment of the present invention.

As shown in Fig. 2, an RFID reader device for the visually impaired having an improved antenna structure, the case being separated into a front case (1000) and a rear case (2000); An antenna unit 100 located on the upper side of the inside of the case and capable of communicating with an RFID tag; a reader module 200 located at the lower side of the case and capable of reading tag information of the RFID tag received from the antenna unit 100; a PCB unit 300 attached to the reader module 200 and positioned on the lower side of the case to communicate with a user terminal; and located above the reader module 200 and the PCB unit 300 in the case and located below the antenna unit 100, the antenna unit 100, the reader module 200, and the PCB unit A battery 400 for supplying power to 300 is included, and on the upper side of the case, a leash member 3000 through which a leash can pass is attached, and the user hangs the RFID reader device around his/her neck. Can be portable.

Schematically, Fig. 2 (a) shows the internal configuration of the RFID reader device viewed from the right side, and Fig. 2 (b) shows the internal configuration of the RFID reader device viewed from the left side.

Specifically, an antenna unit 100 , a reader module 200 , a PCB unit 300 , and a battery 400 are provided inside the case. The antenna unit 100 includes an antenna 110 and an antenna holder 120 , and is connected to the reader module 200 and the PCB unit 300 . The antenna 110 receives the tag information radiated from the RFID tag and transmits it to the reader module 200 , the reader module 200 reads the tag information, and then transmits the read information to the PCB unit 300 . and the PCB unit 300 transmits the read information to the user terminal through a communication module in the PCB unit 300 .

The antenna holder 120 includes the front case 1000 and two antenna fixing screw insertion holes 121 into which the antenna fixing screws for fixing are introduced. An antenna fixing screw is inserted into each of the two antenna fixing screw entry holes 121 , and the antenna fixing screw is fastened to an antenna fixing screw fixing hole (not shown) formed in the front case 1000 . A more detailed description of the antenna unit 100 will be described later with reference to FIGS. 4 to 5 .

The reader module 200 reads tag information of the RFID tag received from the antenna unit 100, and the PCB unit 300 is equipped with a communication module, and communicates with the reader module 200 and a user terminal. carry out In addition, the PCB unit 300 includes a button unit 330 , and a user can operate the RFID reader device through an input of the button unit 330 . The battery 400 supplies power to the antenna unit 100 , the reader module 200 , and the PCB unit 300 . A more detailed description of the reader module 200 and the PCB unit 300 will be described later with reference to FIG. 7 .

A front charging terminal input hole 1600 is formed on the lower side of the front case 1000, and a rear charging terminal input hole 2700 is formed on the lower side of the rear case 2000, and the front case 1000 When the rear case 2000 and the rear case 2000 are coupled, the front charging terminal input hole 1600 and the rear charging terminal input hole 2700 may be coupled to each other symmetrically, which is in the charging terminal input hole mentioned in FIG. corresponds to

3 schematically illustrates an execution step in which a user receives tag information of an RFID tag through an RFID reader device according to an embodiment of the present invention.

Specifically, when an RFID tag is present in the communication range of the antenna unit 100 while the user wears the RFID reader device around his/her neck and moves, the antenna unit 100 receives the tag information of the RFID tag. More specifically, the reader module 200 oscillates an RF signal at a preset period according to a predetermined frequency protocol (in the present invention, a band of 917 MHz to 920 MHz) and a protocol, etc., and the antenna 110 of the antenna unit 100 is The oscillating RF signal is propagated into the air. Radio waves radiated into the air are transmitted to the tag antennas of the RFID tags within the sphere of influence of the antenna 110, and while passing through the tag antenna, the tag information of the corresponding RFID tag is radiated into the air through the tag antenna of the corresponding RFID tag. . The radio waves radiated into the air in this way are again transmitted to the antenna 110 within the sphere of influence.

Meanwhile, as an embodiment of the present invention, the RFID tag corresponds to a life type RFID tag, and preferably corresponds to a passive type RFID tag. The life type RFID tag means an RFID tag in the form of a sticker so that the user can input desired information into the living type RFID tag as tag information, and adjust the size or shape to attach it to the user's desired place. do. According to the one embodiment, the life type RFID tag can be used by attaching to the user's terminal (mobile phone), various medicine boxes, home appliances, the door position, and the user's belongings. In particular, by using the living-type RFID tag, it is possible to easily identify drugs with RFID tags in the house, thereby exhibiting the effect of preventing drug misuse accidents that frequently occur to the visually impaired, and Since the location can be easily identified, it can be effective in preventing the loss of a mobile phone, which is essential for the visually impaired.

As described above, when the antenna unit 100 receives the corresponding tag information from the RFID tag, the antenna unit 100 transmits the tag information to the reader module 200 . The reader module 200 that has received the tag information reads the tag information and converts it into information readable by the user terminal. The read information converted into information readable by the user terminal in the reader module 200 is transmitted to the PCB unit 300 along the communication port 220 attached to the reader module 200 . The read information is transmitted to the user terminal by a communication module included in the PCB unit 300 .

Preferably, with respect to the read information transmitted to the user terminal, the user terminal delivers the content corresponding to the read information to the user through an application capable of performing a text-to-speech (TTS) function installed in the user terminal. . As an embodiment of the present invention, when the user wears the RFID reader device around his neck, walks in a subway station, and approaches the toilet, the user terminal can deliver the phrase "the men's restroom is nearby" to the user. have.

4 schematically shows the configuration of the antenna unit 100 according to an embodiment of the present invention.

As shown in FIG. 4 , the antenna unit 100 includes an antenna 110 ; Antenna holder 120; and a feed line 130; the antenna 110 includes: an FPC-type substrate 111; and a metal pattern 112 printed on the upper surface of the substrate 111, wherein the substrate 111 is disposed inside the case with both ends bent, and the metal pattern 112 is an anode feeding point. right pattern formed from (112.1) to the right; and a left pattern formed to the left from the cathode feeding point 112.2.

The antenna holder 120 is a plastic material attached to the lower surface of the substrate 111 to separate the space in which the substrate 111 and the battery 400 are disposed, and the antenna holder 120 and the front case ( 1000) includes an antenna fixing screw inlet hole 121 into which an antenna fixing screw for fixing is introduced.

Schematically, the antenna unit 100 is composed of a combination of the antenna 110 , the antenna holder 120 , and the feed line 130 .

Specifically, with reference to the description of FIG. 3 , the antenna unit 100 propagates an RF signal oscillated at a predetermined cycle in the reader module 200 into the air, and more specifically, the antenna unit 100 The antenna 110 propagates the RF signal into the air. The antenna 110 has a configuration in which a metal pattern 112 is printed on a flexible printed circuit (FPC) type substrate 111 having a bending property. The metal pattern 112 is generally made of copper (Cu), and a more detailed description of the metal pattern 112 will be described later with reference to FIG. 5 .

The antenna holder 120 is a plastic member capable of fixing the antenna 110 , and as shown in FIG. 4 , is manufactured to have the same degree of bending as the degree of bending of the antenna 110 . The antenna holder 120, with reference to FIG. 2, has one antenna fixing screw-in hole 121 at both ends, and when the antenna fixing screw is inserted into each antenna fixing screw-in hole 121, each antenna A fixing screw is fastened to the antenna fixing screw fastening hole formed in the front case 1000 so that the antenna holder 120 is fastened to the front case 1000 . In addition, as an embodiment of the present invention, the size of the antenna 110 attached to the antenna holder 120 is 75 mm on the long side (the part corresponding to the case width in FIG. 1), and the short side ( FIG. 1 ). It is preferable that the length of the portion corresponding to the width of the case) is designed to be 15 mm, and the length of the antenna holder 120 is also preferably designed to fit the length that can completely cover the antenna 110 .

The antenna holder 120 is attached to the rear surface of the antenna 110 and serves to fix the antenna 110 so as not to be shaken in the case. Additionally, it also serves to minimize interference between the antenna 110 and the PCB unit 300, and in order to minimize the interference, the PCB unit 300 is disposed in the lower part of the case furthest from the antenna 110. it is preferable

The antenna unit 100 is preferably fixed to the upper end of the case through the antenna holder 120, and more preferably, as shown in FIG. 4, the metal pattern 112 of the antenna 110 is formed on the upper side of the case. It is fixed to face the side, and both ends of the antenna unit 100 correspond to a shape bent in the inner direction of the case to be in close contact with the upper right and left corners of the case. The RFID reader device of the present invention is configured in the form of a necklace as described above, and therefore, when the user wears the RFID reader device around his neck and moves, the collar member 3000 attached to the upper outer surface of the case is used. It can be rotated as a rotating shaft. In order not to change the efficiency of the antenna 110 according to the movement of the RFID, the antenna unit 100 is preferably provided facing the upper side of the case rather than provided on the front or rear side of the case. In consideration of this, it is preferable to fix the antenna 110 to the upper part of the inside of the case through the antenna holder 120 .

5 schematically shows an FPC-type substrate 111 and a metal pattern 112 engraved thereon according to an embodiment of the present invention.

As shown in FIG. 5 , the metal pattern 112 includes a right-hand pattern formed from the anode feeding point 112.1 to the right; and a left pattern formed to the left from the cathode feeding point 112.2, wherein the right pattern is disposed in a first width by crossing two or more concave portions and two or more convex portions to the right from the positive feeding point 112.1 a first right pattern (112.11); a second right pattern (112.12) disposed in the right longitudinal direction from the end of the last convex portion disposed in the first right pattern (112.11) to the lower right vertex of the substrate (111) with a second width; a third right pattern (112.13) disposed in the upper height direction from the lower right vertex to the upper right vertex in a third width; and a fourth right pattern 112.14 disposed in the left longitudinal direction by a predetermined length from the upper right vertex to a fourth width, wherein the left pattern has two or more concavities to the left from the cathode feeding point 112.2. a first left pattern 112.21 arranged in a first width by crossing a portion and two or more convex portions; a second left pattern (112.22) disposed in the left longitudinal direction from the end of the last convex portion disposed in the first left pattern (112.21) to the lower left vertex of the substrate (111) with a second width; a third left pattern (112.23) disposed in the upper height direction from the lower left vertex to the upper left vertex in a third width; and a fourth left pattern 112.24 disposed in the right longitudinal direction by a predetermined length from the upper left vertex to a fourth width.

Specifically, the antenna 110 is composed of an FPC type substrate 111 and a metal pattern 112 made of a copper material, and according to an embodiment of the present invention, the metal material used for the metal pattern 112 is copper. Non-metallic materials such as gold may be used. While the conventional PCB is a rigid substrate, the FPC-type substrate used in the present invention has flexibility and is a substrate that can be deformed in a shape within a preset range. As a result, it is possible to exert the effect that there is an advantage of space utilization compared to a board using a conventional PCB. The size of the antenna is determined according to the frequency band used. If a low frequency band is used, the antenna coverage is widened and power consumption is low, but since the wavelength of the corresponding radio wave is long, the size of the antenna increases and portability is reduced, and the high frequency band When using , the amount of data that can be communicated for a certain period of time increases and the size of the antenna becomes smaller because the wavelength of the radio wave is short, but there are disadvantages in that the coverage of the antenna is small and power consumption is large. . In consideration of this point, in the present invention, the antenna 110 in the 917 MHz to 920 MHz band, which can recognize the RFID tag attached near the user even when the pedestrian is moving, and ensures portability so that it can be carried every day, is used. In order to make the RFID reader device of the present invention smaller in size, the space configuration was maximized by using a bendable FPC-type antenna 110 . Through the above configuration, according to the present invention, an RFID tag within an appropriate distance can be recognized while the user is moving, and the effect of having low power consumption can be exhibited. The appropriate distance is, as an embodiment of the present invention, preferably set within 1M.

The antenna 110 is designed to have an omni-directional radiation pattern and a linear polarization structure to reduce the volume in order to meet the object of the present invention, and as a result, as shown in FIG. Likewise, it has a structure of a dipole antenna. Since it follows the structure of the dipole antenna, the antenna 110 has a shape extending in the left and right longitudinal directions based on the feeding point, which is the contact point between the feeding line 130 and the metal pattern 112, and at this time, the left side extending in the left longitudinal direction. It is preferable that the pattern and the right pattern extending in the right longitudinal direction form left-right symmetry. The feeding point is composed of a positive feeding point 112.1, which is the starting point of the right pattern, and a negative feeding point 112.2, which is the starting point of the left pattern, with reference to FIG. 5 . Meanwhile, according to an embodiment of the present invention, the current flowing through the antenna 110 is an alternating current, and a (+) current and a (-) current may be alternately fed through the anode feeding point 112.1. A (+) current and a (-) current may be alternately fed to the cathode feeding point 112.2. At this time, the polarities of the current flowing through the positive feeding point 112.1 and the negative feeding point 112.2 are opposite to each other.

On the other hand, according to an embodiment of the present invention, the anode feed point 112.1 and the cathode feed point 112.2 are preferably connected on the lower surface of the feed line 130 and the substrate 111, and the feed line The furnace 130 is connected to the reader module 200 with reference to FIG. 2 , and transmits an RF signal oscillated at a preset period in the reader module 200 to the antenna 110, and the antenna 110 receives A tag signal emitted from one RFID tag is transmitted to the reader module 200 .

The right pattern includes a first right pattern 112.11 arranged in a first width by crossing two or more concave portions and two or more convex portions to the right with respect to the positive electrode feeding point 112.1, as shown in FIG. 5 . do. In an embodiment of the present invention, the first right pattern 112.11 has four concave portions and four convex portions, and each of the concave portions and the convex portions is preferably arranged to cross each other, and the concave portion and the convex portion It is preferable that all widths are designed to be the first width.

The first right pattern 112.11 is connected to the second right pattern 112.12, and the second right pattern 112.12 has a second width from the end of the convex portion last disposed in the first right pattern 112.11. It is arranged in a straight line in the right longitudinal direction to the lower right vertex of the substrate 111 . In one embodiment of the present invention, the second width is preferably wider than the first width. The right longitudinal direction corresponds to a direction in which the lower right vertex is viewed from the lower left vertex of the substrate 111 .

The second right pattern 112.12 is connected to the third right pattern 112.13, and the third right pattern 112.13 is the end of the second right pattern 112.12, that is, the lower right vertex of the substrate 111. It is arranged in a straight line in the upper height direction from the third width to the upper right vertex of the substrate 111 . In one embodiment of the present invention, it is preferable that the third width is narrower than the second width.

The third right pattern 112.13 is connected to the fourth right pattern 112.14, and the fourth right pattern 112.14 is the end of the third right pattern 112.13, that is, the upper right vertex of the substrate 111. It is disposed in the left longitudinal direction by a predetermined length from the fourth width. The left longitudinal direction corresponds to a direction in which the upper left vertex is viewed from the upper right vertex of the substrate 111 .

The left pattern includes a first left pattern 112.21 arranged in a first width by crossing two or more concave portions and two or more convex portions to the left with respect to the cathode feeding point 112.2, as shown in FIG. 5 . do. As an embodiment of the present invention, the first left pattern 112.21 has three concave portions and four convex portions, and each of the concave portions and the convex portions is preferably arranged to cross each other, and the concave portion and the convex portion It is preferable that all widths are designed to be the first width.

The first left pattern 112.21 is connected to the second left pattern 112.22, and the second left pattern 112.22 has a second width from the end of the convex portion last disposed in the first left pattern 112.21. It is arranged in a straight line in the left longitudinal direction to the lower left vertex of the substrate 111 . In one embodiment of the present invention, the second width is preferably wider than the first width. The left longitudinal direction corresponds to a direction in which the lower left vertex is viewed from the lower right vertex of the substrate 111 .

The second left pattern 112.22 is connected to the third left pattern 112.23, and the third left pattern 112.23 is the end of the second left pattern 112.22, that is, the lower left vertex of the substrate 111. It is arranged in a straight line in the upper height direction from the third width to the upper left vertex of the substrate 111 . In one embodiment of the present invention, it is preferable that the third width is narrower than the second width.

The third left pattern 112.23 is connected to the fourth left pattern 112.24, and the fourth left pattern 112.24 is the end of the third left pattern 112.23, that is, the right end vertex of the substrate 111. It is disposed in the right longitudinal direction by a predetermined length from the fourth width. The right longitudinal direction corresponds to a direction in which the upper right vertex is viewed from the upper left vertex of the substrate 111 .

In this way, the antenna 110 includes a portion where the anode feeding point 112.1 and the first right pattern 112.11 are connected; and a portion where the cathode feeding point 112.2 and the first left pattern 112.21 connect; except for, it has a symmetrical shape, and a portion where the anode feed point 112.1 and the first right pattern 112.11 connect; and a portion where the cathode feeding point 112.2 and the first left pattern 112.21 connect; the reason for this difference is to compensate for the size, gain, or impedance matching of the antenna 110 .

6 schematically shows the configuration of the front case 1000 and the rear case 2000 according to an embodiment of the present invention.

As shown in FIG. 6 , the front case 1000 includes a battery fixing guide 1100 for mounting the battery 400 to the front case 1000 ; a board fixing guide 1200 for mounting the board of the PCB unit 300 to the front case 1000; a board fixing hook 1300 for fixing the board of the PCB unit 300 to the front case 1000; two or more button holes 1400 on the side of the front case 1000 through which the button part 330 included in the PCB part 300 protrudes to the outside of the case; and a case fixing screw fastening hole 1500 to which a case fixing screw for fixing the front case 1000 and the rear case 2000 is fastened, wherein the front leash member 3000a is connected to the front case 1000 is attached to the upper side of the

The rear case 2000 includes: a reader pressing rib 2100 for fixing the reader module 200 to the board of the PCB unit 300; a reader pressing cushion 2200 for preventing the reader module 200 from shaking; a board pressing rib 2300 for fixing the board of the PCB unit 300 to the rear case 2000; a battery pressing rib 2400 for fixing the battery 400 to the rear case 2000; Battery pressing cushion (2500) to prevent the shaking of the battery (400); and a case fixing screw-in hole 2600 through which a case fixing screw for fixing the front case 1000 and the rear case 2000 is introduced, and a rear collar hanging member 3000b is provided in the rear case 2000. attached to the upper side,

The lower side of the case includes a charging terminal input hole into which a charging terminal capable of charging the battery 400 is introduced, and the charging terminal input hole is a front charging terminal input hole included in the front case 1000 . (1600); and a rear charging terminal input hole 2700 included in the rear case 2000 , wherein the charging terminal is included in the PCB unit 300 .

Schematically, Fig. 6(a) shows the inside of the front case 1000 of the RFID reader device, and Fig. 6(b) shows the inside of the rear case 2000 of the RFID reader.

Specifically, in the present invention, the antenna unit 100, the reader module 200, the PCB unit 300, and the battery 400 are all mounted on the front case 1000, and the antenna unit 100, the reader After the module 200, the PCB unit 300, and the battery 400 are all mounted on the front case 1000, the rear case 2000 is covered thereon and the front case 1000 and the front case 1000 with a case fixing screw It is a configuration for coupling the rear case (2000).

As shown in (a) of FIG. 6 , a battery fixing guide 1100 in which the battery 400 can be mounted is disposed on the inner upper end of the front case 1000 . The electric field (田)-shaped member of the battery fixing guide (1100) is a place to which the double-sided tape for fixing the battery 400 and the front case 1000 is attached, and the The plastic member extending from the member to the upper side, the left side, and the right side of the front case 1000 corresponds to a member for fixing the battery 400 so as not to be shaken.

A board fixing guide 1200 on which the PCB unit 300 can be mounted is disposed at an inner lower end of the front case 1000 . The board fixing guide 1200, like the battery fixing guide 1100, corresponds to a member for fixing the PCB unit 300 not to be shaken, and the PCB unit 300 is a component mounted on the PCB when there is a lot of vibration. It may fall, or the connection part with the reader module 200, the battery 400, or the charging terminal may become loose, so it needs to be fixed more firmly than the battery 400, and accordingly, it is further secured through the board fixing hook 1300. It can be firmly fixed to the front case (1000). That is, the board fixing guide 1200 serves to suppress the movement of the board up, down, left and right, and the board fixing hook 1300 serves to suppress the forward and backward movement.

In addition, a button hole 1400 through which the button part 330 can protrude is provided on the left side of the front case 1000 . The button unit 330 is included in the PCB unit 300 , and a user can operate the RFID reader device through an input of the button unit 330 . As an embodiment of the present invention, the number of the buttonholes 1400 is two or more, and it is determined according to the number of buttons included in the button part 330 , and the two or more buttonholes 1400 are the number of the buttonholes 1400 of the case. arranged in a row on the left side.

A case fixing screw fastening hole 1500 is provided at the upper left side, the left side lower side, the right side upper side, and the right side lower side of the front case 1000 . The case fixing screw fastening hole 1500 is a hole through which the case fixing screw introduced into the rear case 2000 is fastened so that the front case 1000 and the rear case 2000 are fastened.

Additionally, in the center of the lower surface of the front case 1000, a front charging terminal lead-in hole 1600 into which a charging terminal can be introduced is disposed, and the front charging terminal lead-in hole 1600 is a rear case 2000 to be described later. ) is combined with the rear charging terminal inlet hole 2700 to form a charging terminal inlet hole. In addition, the front side collar hanging member (3000a) is attached to the center of the outer upper surface of the front case (1000).

As shown in FIG. 6B , a rib structure for pressing the reader module 200 , the battery 400 , and the board of the PCB unit 300 is disposed inside the rear case 2000 . As described above, in the present invention, after the antenna unit 100, the reader module 200, the PCB unit 300, and the battery 400 are mounted on the front case 1000, the rear case ( 2000), the antenna unit 100, the reader module 200, the battery 400, and the board can be more firmly fixed by using a rib structure attached to the rear case 2000.

A reader pressing rib 2100 and a reader pressing cushion 2200 for pressing the reader module 200 when the front case 1000 and the rear case 2000 are coupled are disposed on the inner lower end of the rear case 2000 . . The reader module 200 and the PCB unit 300 of the present invention are attached with double-sided tape. Therefore, it is important to firmly fix the reader module 200 and the PCB unit 300 so that they do not fall off, and the reader module 200 and the PCB unit 300 are connected through the reader pressing rib 2100. It can be made to fit more tightly. In addition, since the reader module 200 does not have a member that can be fixed such as a separate hook or guide, shaking of the reader module 200 can be prevented through the reader pressing cushion 2200 . In addition, the reader pressing cushion 2200 offsets the shock transmitted to the reader module 200 from an impact applied to the case, thereby reducing the failure of the reader module 200 It can be exhibited.

A battery pressing rib 2400 and a battery pressing cushion 2500 for pressing the battery 400 when the front case 1000 and the rear case 2000 are coupled are disposed on the inner upper end of the rear case 2000 . The battery pressing rib 2400 and the battery pressing cushion 2500 allow the battery 400 attached to the front case 1000 with double-sided tape to be more firmly attached to the front case 1000 . In addition, the battery press cushion 2500 protects the battery 400 from external shocks that shorten the lifespan of the battery 400, thereby prolonging the lifespan of the battery 400 can be exerted. have.

In addition, the upper left side of the rear case 2000, the lower left side, the upper right side. And a case fixing screw in hole 2600 is provided at the lower right side. Referring to FIG. 2 , the case fixing screw in hole 2600 is a hole through which the case fixing screw is introduced into the rear case 2000 from the outside of the rear case 2000 . The four case fixing screws each introduced into the four case fixing screw-in holes 2600 provided in the rear case 2000 pass through the case fixing screw-in hole 2600 and pass through the case fixing screw-in hole 1500 described above. ) is connected to

Additionally, a rear charging terminal lead-in hole 2700 into which a charging terminal can be introduced is disposed in the center of the lower surface of the rear case 2000 , and the front case 1000 and the rear case 2000 include the case fixing screw When combined with, the rear charging terminal in-hole 2700 is coupled with the front charging terminal in-hole 1600 of the aforementioned front case 1000 to form a charging terminal in-hole. A user may insert a charging terminal into the charging terminal input hole. The charging terminal is connected to the PCB unit 300 to supply power to the battery 400 .

In addition, a rear collar hanging member 3000b is attached to the center of the outer upper surface of the rear case 2000 . When the front case 1000 and the rear case 2000 are coupled, the front collar member 3000a and the rear collar member 3000b are fastened, and referring to FIG. 1 , the collar member 3000 is installed. After inserting the collar into the collar through hole provided in the collar hanging member 3000, the user can carry the RFID reader device in the form of a collar.

Meanwhile, the antenna unit 100 is disposed at the upper end of the case in order to maximize antenna efficiency, and a more detailed description thereof will be described later with reference to FIGS. 8 to 9 . In addition, the reason for attaching and disposing the PCB unit 300 and the reader module 200 is to minimize the size of the case, and if the battery 400 and the reader module 200 are attached, the reader module ( When 200) reads and reads the tag information, the temperature of the reader module 200 rises, and the generated heat causes a temperature rise effect. In addition, since the temperature of the battery 400 increases as the current consumption of the battery 400 increases, a synergistic effect of temperature increase in the reader module 200 and the battery 400 may occur, so in the present invention, the reader module The arrangement of 200 and the battery 400 was separated. Additionally, if the distance between the PCB unit 300 and the antenna unit 100 is close, there is a possibility of causing mutual interference even if the antenna holder 120 is present, so that the antenna unit 100 is located at the top inside the case, It is preferable that the battery 400 is disposed under it, and the PCB unit 300 and the reader module 200 are disposed at the lower end thereof.

7 schematically shows the configuration of the reader module 200, the PCB unit 300, and the battery 400 according to an embodiment of the present invention.

As shown in FIG. 7 , the PCB unit 300 includes: a reader module communication unit 310 connected to the reader module 200 to receive read information of an RFID tag; a user terminal communication unit 320 for transmitting read information of the RFID tag to the user terminal; and a button unit 330 capable of operating the RFID reader device.

Schematically, Fig. 7 (a) shows a state in which the reader module 200, the PCB unit 300, and the battery 400 are combined, and Fig. 7(b) shows the configuration of the PCB unit 300. show

Specifically, the board of the reader module 200 and the PCB unit 300 is shown in Fig. 2; and the description of FIG. 6; is attached with double-sided tape, and the battery 400 is electrically connected to the reader module 200 and the board to supply power to the reader module 200 and the board. do. As an embodiment of the present invention, the battery 400 preferably corresponds to a lithium-ion battery, and power may be charged through a charging port connected to a charging terminal of the PCB unit 300 .

As shown in FIG. 7A , the reader module 200 includes an antenna terminal 210 and a communication port 220 . The feed line 130 of the antenna unit 100 connected to the antenna terminal 210 transmits the RF signal oscillated at a predetermined period in the reader module 200 to the antenna unit 100, and the antenna unit 100 ) of the received RFID tag is transferred to the reader module 200 . The communication port 220 is connected to the PCB unit 300 by a plurality of wires, and the plurality of wires transmits the read information read by the reader module 200 to the PCB with reference to the description of FIG. 3 . It performs a function of transmitting to the unit 300 .

As shown in (b) of FIG. 7 , the PCB unit 300 includes a reader module communication unit 310 that communicates with the reader module 200, and a user terminal communication unit that communicates with the user terminal ( 320), and a button unit 330 capable of operating the RFID reader device. The reader module communication unit 310, as described above, transmits an RF signal to the antenna unit 100 at predetermined intervals; and receiving tag information of the RFID tag from the antenna unit 100 . A control unit (not shown) of the PCB unit 300 receives and reads the tag information and generates read information.

The read information generated by the control unit is transmitted to the user terminal communication unit 320, and the user terminal communication unit 320 transmits the read information to the user terminal. The user terminal communication unit 320 includes a communication module capable of communicating with the user terminal, and the communication module, as an embodiment of the present invention, preferably corresponds to a communication module capable of Bluetooth communication, more preferably Preferably, the communication module may be capable of low-power Bluetooth communication.

The button unit 330 includes a plurality of physical buttons, and the physical button converts the pressure applied to the physical button into an electrical signal, and transmits the electrical signal to the control unit. The control unit receives the electrical signal and controls the RFID reader device in response to the electrical signal.

On the other hand, the user terminal that has received the read signal from the user terminal communication unit 320, as an embodiment of the present invention, converts the read signal into information that the user can understand through an application installed in the user terminal and transmits it . Preferably, the information that the user can understand is voice information, and the application has a TTS function.

Hereinafter, a description will be given of simulation results for manufacturing the antenna 110 of the present invention and measurement results of a prototype.

8 schematically shows a three-dimensional radiation pattern of an antenna according to a frequency band according to an embodiment of the present invention, and FIG. 9 is an antenna 110 along a radiation plane of the antenna 110 according to an embodiment of the present invention. ) schematically shows the two-dimensional radiation pattern.

Schematically, FIG. 8 shows an antenna design using an antenna design program before manufacturing the antenna 110, and shows a radiation pattern of the antenna designed through the program in three dimensions, and FIG. 9 is a prototype of the designed antenna. Fabricate and show the radiation pattern of the prototype in each of a plurality of radiation planes (XY plane, XZ plane and YZ plane).

Specifically, as shown in FIG. 8 , a radiation pattern in the frequency band to be designed, 917 MHz to 920 MHz, was shown, and as a result of designing in the form of a dipole antenna, it was confirmed that an omni-directional radiation pattern meeting the design purpose appeared. . The RFID reader device of the present invention is manufactured in the form of a necklace, and when a visually impaired person moves by wearing the RFID reader device around his/her neck, it is obvious that the front and rear of the RFID reader device continue to rotate due to the vibration of walking.

That is, due to the characteristics of this type, the antenna of the RFID reader device is attached to the front case 1000 or the rear case 2000 and the RFID reader device continues to rotate, rather than being located on the front or rear side, in which direction the user It is preferably located on the upper or lower side of the case of the RFID reader device so that the RFID tag around the user can be recognized even when it is hung on the neck of the user. Due to the location of the charging terminal, the antenna 110 is located inside the case It is more preferable to be located above the For the same reason as described above, the antenna 110 of the present invention is designed in the form of a dipole antenna, and referring to the 3D radiation pattern simulation result shown in FIG. 8 , it can be confirmed that the inventor is designed as an omni-directional antenna in the desired frequency band. have.

9 shows the radiation pattern of the prototype of the antenna designed in FIG. 8 in each of a plurality of radiation planes, and the plurality of radiation planes include an XY plane, an XZ plane, and a YZ plane. Referring to FIG. 1, the XY plane is a direction viewed from the right side of the case, and from the perspective of the antenna unit 100, referring to FIG. 5, the right side of the substrate 111 and the antenna holder 120 is visible. do. The Azimuth Pattern (radiation pattern of azimuth) shown in FIG. 8 means the radiation pattern when the prototype is viewed in the XY plane, and as shown in FIG. 9, it can be confirmed that the non-directional radiation pattern is evenly formed. have. In other words, even if the RFID reader continues to rotate from the user's neck, since the direction of the antenna 110 is located on the upper side of the case, the effect of not affecting the radiation pattern can be exhibited.

Referring to FIG. 1 , the XZ plane is a direction viewed from the front or rear side of the case, and from the antenna unit 100 , the lower side of the substrate 111 and the antenna holder 120 is seen with reference to FIG. 5 . corresponds to the direction. The Elevation Pattern (radiation pattern at a high angle) shown in FIG. 9 means a radiation pattern when the prototype is viewed in the XZ plane, and as shown in FIG. 9, it can be confirmed that a radiation pattern symmetrical to the left and right is formed. . In other words, since the copy pattern oriented toward the upper and rear sides of the RFID reader is formed, and the copy pattern is relatively weakly formed in the right and left side directions, even if the RFID reader does not touch the RFID tag, the RFID reader uses the RFID tag. It can have a readable effect.

Referring to FIG. 1, the YZ plane is the lower side of the case, that is, the direction facing the charging terminal, and in the particle of the antenna unit 100, referring to FIG. corresponds to the direction. The Elevation Side Pattern (radiation pattern at the side elevation angle) shown in FIG. 9 means a radiation pattern when the prototype is viewed from the YZ plane, and as shown in FIG. can In other words, it means that a radiation pattern oriented in the front and rear directions of the RFID reader is formed, and the reason that the Elevation Side Pattern is not perfectly symmetric, that is, the radiation pattern in the left and rear side directions of the case is slightly different. The cause is that, referring to FIG. 4 , the shape of the antenna unit 100 is that both ends are curved.

Through the simulation and prototype measurement as described above, the present invention aims to achieve, the RFID reader device hung around the neck of a visually impaired person on the move reads and reads the tag information of the RFID tag within 1M, and sends the tag to the user terminal. It can be confirmed that an antenna that can transmit information is manufactured.

According to an embodiment of the present invention, by using the antenna 110 using the flexible substrate 111, the size of the RFID reader device can be reduced, and the optimal antenna 110 efficiency in the necklace type is used. It is possible to exhibit the effect of implementing a radiation pattern.

According to an embodiment of the present invention, by using the rechargeable battery 400, it is possible to exhibit the effect that the visually impaired can conveniently use the battery 400 replacement.

According to an embodiment of the present invention, as a miniaturized and lightweight necklace-type RFID reader device, it is highly portable and can be carried anywhere indoors and outdoors.

According to one embodiment of the present invention, in consideration of the necklace-type RFID reader device that shakes frequently, the antenna 110, the reader module 200, the PCB, and the battery 400 can be well fixed inside the case. By using the members, the effect of increasing the durability of the reader device can be exerted.

According to an embodiment of the present invention, through the improved antenna structure, the RFID reader device does not directly contact the RFID tag, and it is possible to obtain tag information within 1M while moving.

According to an embodiment of the present invention, it is possible to easily identify a drug with an RFID tag in the house, thereby exhibiting the effect of preventing drug misuse accidents that frequently occur in the visually impaired.

According to an embodiment of the present invention, it is possible to easily grasp the location of the mobile phone to which the RFID tag is attached, thereby exhibiting the effect of preventing the loss of the mobile phone, which is essential for the visually impaired.

According to an embodiment of the present invention, it is possible to easily find the male and female toilets, the location of the elevator or the exit, etc. in a public place, so that when a visually impaired person goes out alone, it is possible to go out more safely and comfortably.

As described above, although the embodiments have been described with reference to the limited embodiments and drawings, various modifications and variations are possible from the above description by those skilled in the art. For example, the described techniques are performed in an order different from the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result. Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

1000: front case
1100: battery fixing guide 1200: board fixing guide
1300: board fixing hook 1400: button hole
1500: case fixing screw fastening hole 1600: front charging terminal inlet hole
2000: rear case
2100: reader press rib 2200: reader press cushion
2300: board pressing rib 2400: battery pressing rib
2500: battery press cushion 2600: case fixing screw in hole
2700: rear charging terminal input hole
3000: collar member
100: antenna unit 110: antenna
111: substrate 112: metal pattern
112.1: positive feeding point 112.2: negative feeding point
112.11: first right pattern 112.12: second right pattern
112.13: third right pattern 112.14: fourth right pattern
112.21: first left pattern 112.22: second left pattern
112.23: third left pattern 112.24: fourth left pattern
120: antenna holder 130: feed line
200: reader module
210: antenna terminal 220: communication port
300: PCB unit 330: button unit
400: battery

Claims (8)

As an RFID reader device for the visually impaired having an improved antenna structure,
A case that is separated into a front case and a rear case;
An antenna unit located on the upper side of the inside of the case and capable of communicating with the RFID tag;
a reader module located on the lower side of the case and capable of reading tag information of the RFID tag received from the antenna unit;
a PCB unit attached to the reader module, located on the lower side of the case, and communicating with a user terminal; and
a battery located above the reader module and the PCB unit in the case, located below the antenna unit, and supplying power to the antenna unit, the reader module, and the PCB unit;
A collar member through which a collar can pass is attached to the upper side of the case, so that a user can carry the RFID reader device by hanging it around his/her neck,
The antenna unit,
antenna;
antenna holder; and
Including;
The antenna is
FPC-type substrate; and
Including; a metal pattern printed on the upper surface of the substrate;
The substrate is disposed inside the case in a curved form at both ends,
The metal pattern is
a right pattern formed to the right from the anode feeding point; and
Including; the left pattern formed to the left from the negative electrode feeding point;
The right pattern is
a first right pattern arranged in a first width by crossing two or more concave portions and two or more convex portions to the right from the positive electrode feeding point;
a second right pattern disposed in a right longitudinal direction from the end of the last convex portion disposed in the first right pattern to a lower right vertex of the substrate with a second width;
a third right pattern disposed in an upper height direction from the lower right vertex to the upper right vertex in a third width; and
a fourth right pattern disposed in the left longitudinal direction by a predetermined length from the upper right vertex to a fourth width; and
The left pattern is
a first left pattern arranged in a first width by crossing two or more concave portions and two or more convex portions to the left from the cathode feeding point;
a second left pattern disposed in a left longitudinal direction from the last end of the convex portion disposed in the first left pattern to the lower left vertex of the substrate with a second width;
a third left pattern disposed in an upper height direction from the lower left vertex to the upper left vertex in a third width; and
A fourth left pattern disposed in the right longitudinal direction by a predetermined length from the upper left vertex to a fourth width; Containing, a dedicated RFID reader device for the visually impaired.
delete delete The method according to claim 1,
The antenna holder,
As a plastic material, it is attached to the lower surface of the substrate to separate the space in which the substrate and the battery are disposed,
A dedicated RFID reader device for the visually impaired, comprising an antenna fixing screw inlet through which an antenna holder fixing screw for fixing the antenna holder and the front case is inserted.
The method according to claim 1,
The front case is
a battery fixing guide for mounting the battery on the front case;
a board fixing guide for mounting the board of the PCB unit to the front case;
a board fixing hook for fixing the board of the PCB unit to the front case;
two or more button holes in which the button part included in the PCB part protrudes to the outside of the case on the side surface of the front case; and
and a case fixing screw fastening hole to which a case fixing screw for fixing the front case and the rear case is fastened;
RFID reader device for the visually impaired, in which the front collar member is attached to the upper side of the front case
The method according to claim 1,
The rear case is
a reader pressing rib for fixing the reader module to the board of the PCB unit;
a reader pressing cushion for preventing the reader module from shaking;
a board pressing rib for fixing the board of the PCB unit to the rear case;
a battery pressing rib for fixing the battery to the rear case;
a battery pressing cushion to prevent shaking of the battery; and
A case fixing screw-in hole into which a case fixing screw for fixing the front case and the rear case is introduced is disposed,
A RFID reader device for the visually impaired, in which the rear collar member is attached to the upper side of the rear case.
The method according to claim 1,
The lower side of the case includes a charging terminal inlet hole into which a charging terminal capable of charging the battery is introduced,
The charging terminal inlet hole,
a front charging terminal input hole included in the front case; and
Including; a rear charging terminal input hole included in the rear case;
The charging terminal is included in the PCB unit, a dedicated RFID reader device for the visually impaired.
The method according to claim 1,
The PCB part,
a reader module communication unit connected to the reader module to receive read information of the RFID tag;
a user terminal communication unit for transmitting read information of the RFID tag to the user terminal; and
A dedicated RFID reader device for the visually impaired including; a button unit capable of operating the RFID reader device.

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