US20180025591A1 - Reading apparatus - Google Patents

Reading apparatus Download PDF

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Publication number
US20180025591A1
US20180025591A1 US15/647,791 US201715647791A US2018025591A1 US 20180025591 A1 US20180025591 A1 US 20180025591A1 US 201715647791 A US201715647791 A US 201715647791A US 2018025591 A1 US2018025591 A1 US 2018025591A1
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United States
Prior art keywords
tray
surface side
reading
antenna
reading apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/647,791
Inventor
Yutaka Takano
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Toshiba TEC Corp
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Toshiba TEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba TEC Corp filed Critical Toshiba TEC Corp
Assigned to TOSHIBA TEC KABUSHIKI KAISHA reassignment TOSHIBA TEC KABUSHIKI KAISHA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TAKANO, YUTAKA
Publication of US20180025591A1 publication Critical patent/US20180025591A1/en
Priority to US16/527,688 priority Critical patent/US11217071B2/en
Abandoned legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
    • G07G1/00—Cash registers
    • G07G1/0036—Checkout procedures
    • G07G1/0045—Checkout procedures with a code reader for reading of an identifying code of the article to be registered, e.g. barcode reader or radio-frequency identity [RFID] reader
    • G07G1/009—Checkout procedures with a code reader for reading of an identifying code of the article to be registered, e.g. barcode reader or radio-frequency identity [RFID] reader the reader being an RFID reader
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
    • G06K7/10079—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions
    • G06K7/10089—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions the interrogation device using at least one directional antenna or directional interrogation field to resolve the collision
    • G06K7/10099—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the spatial domain, e.g. temporary shields for blindfolding the interrogator in specific directions the interrogation device using at least one directional antenna or directional interrogation field to resolve the collision the directional field being used for pinpointing the location of the record carrier, e.g. for finding or locating an RFID tag amongst a plurality of RFID tags, each RFID tag being associated with an object, e.g. for physically locating the RFID tagged object in a warehouse
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00—Payment architectures, schemes or protocols
    • G06Q20/08—Payment architectures
    • G06Q20/20—Point-of-sale [POS] network systems
    • G06Q20/208—Input by product or record sensing, e.g. weighing or scanner processing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2216—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in interrogator/reader equipment
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07G—REGISTERING THE RECEIPT OF CASH, VALUABLES, OR TOKENS
    • G07G1/00—Cash registers
    • G07G1/0018—Constructional details, e.g. of drawer, printing means, input means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna

Definitions

  • An embodiment described herein relates generally to a reading apparatus.
  • This reading apparatus For sales data processing, there is a reading apparatus that makes use of RFID (Radio Frequency Identification).
  • RFID Radio Frequency Identification
  • This reading apparatus includes an antenna that transmits and receives radio waves for reading data stored in an RFID tag attached to a commodity or item. When used, the reading apparatus is connected to a POS (Point Of Sales) terminal disposed on a register counter, for example.
  • POS Point Of Sales
  • Such a reading apparatus is capable of collectively reading a plurality of RFID tags.
  • the RFID reading apparatus making use of the RFID may be faster than a sales data processing apparatus making use of a barcode reader, which requires each commodity or item to be read/scanned individually.
  • the antenna and the control unit are disposed apart from each other. Therefore, labor and time for separately setting the antenna and the control unit and a larger space for setting up the antenna and the control unit are necessary.
  • FIG. 1 is a perspective view depicting a configuration and an exterior of a sales data processing system including a reading apparatus according to an embodiment.
  • FIG. 2 is a perspective view depicting an exterior of the reading apparatus.
  • FIG. 3 is a partial cross-sectional view of the structure of the reading apparatus.
  • a reading apparatus in general, includes a tray having a first surface side and a second surface side opposite the first surface side, an antenna unit disposed on the first surface side of the tray and configured to transmit a radio wave signal for reading a wireless tag and to receive a radio wave signal from the wireless tag, and a controller attached to the tray on the second surface side and configured to control the antenna unit to transmit the radio wave signal for reading the wireless tag.
  • the controller reads data in the radio wave signal from the wireless tag received by the antenna unit.
  • the tray includes at least one of an electromagnetic wave reflecting material or an electromagnetic wave absorbing material disposed between the antenna unit and the controller so as to block the radio wave signal for reading the wireless tag from reaching the controller.
  • FIG. 1 is a perspective view showing the configuration and the exterior of a sales data processing system 1 including a reading apparatus 100 .
  • the sales data processing system 1 includes the reading apparatus 100 and a POS terminal apparatus 200 .
  • the sales data processing system 1 has a checkout counter 2 and uses shopping baskets 3 (e.g., 3 A, 3 B, and 3 C).
  • the reading apparatus 100 reads data stored in a wireless tag (e.g., an RFID tag) attached to a commodity or an item of merchandise that has put in the shopping basket 3 B, for example.
  • the data stored by the RFID tag is, for example, a commodity code.
  • the POS terminal apparatus 200 obtains, through inquiry to a database in an external server (not shown in the figure), commodity data such as a price set on the basis of the commodity code that has been read by the reading apparatus 100 and then registers the obtained commodity data as sales data.
  • the POS terminal apparatus 200 performs settlement processing based on the price of the commodity (or commodities) registered as the sales data.
  • the reading apparatus 100 is incorporated in the checkout counter 2 .
  • the checkout counter 2 has length sufficient for placing three to four shopping baskets 3 side by side.
  • three shopping baskets 3 A to 3 C are placed on the checkout counter 2 .
  • the checkout counter 2 includes a top plate 21 and a shelf 22 .
  • the top plate 21 functions as a table for placing the shopping baskets 3 .
  • the shelf 22 is used as a storage location and functions as a base for supporting the top plate 21 .
  • a longitudinal dimension (length) of the top plate 21 is the same as or slightly larger than the longitudinal dimension (length) of the shelf 22 .
  • the shelf 22 includes, at a midpoint along its length, a housing section 23 for housing the reading apparatus 100 .
  • the housing section 23 is provided right under the top plate 21 .
  • the housing section 23 shown in FIG. 1 includes a front plate 23 a. However, in some embodiments, the front plate 23 a may be absent. Further, in some embodiments, the housing section 23 may be a drawer.
  • a region of the top plate 21 above the housing section 23 is a region where the RFID tag can be read by the reading apparatus 100 and is a space for placing the shopping basket 3 B to be read.
  • the region of the top plate 21 above the housing section 23 can be referred to as “a reading region.”
  • the top plate 21 has, on both sides of the reading region, spaces in which a shopping basket 3 can be placed.
  • the space on the side of the reading region closer to the POS terminal apparatus 200 is used as a space for the shopping basket 3 C.
  • the opposite side of the reading region is used as a space for the shopping basket 3 A.
  • the shopping basket 3 A is on standby for reading by the reading apparatus 100 .
  • the shopping basket 3 C has already been read by the reading apparatus 100 and is to be subjected to settlement processing by the POS terminal apparatus 200 .
  • FIG. 2 is a perspective view showing the exterior of the reading apparatus 100 .
  • FIG. 3 is a partial sectional view of the structure of the reading apparatus 100 .
  • the reading apparatus 100 includes an antenna unit 110 , a rail 120 , a slider 130 , a motor 140 , a tray 150 , and a control unit 160 .
  • the antenna unit 110 may be, for example, a planar patch antenna housed in a rectangular parallelepiped housing.
  • the antenna unit 110 is used for both of transmission and reception and transmits radio waves at a predetermined frequency.
  • the control unit 160 can be a control board on which various chips such as a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory) are mounted.
  • the control unit 160 controls the transmission and reception of radio waves by the antenna unit 110 and reads data from and writes data to the RFID tag.
  • the control unit 160 includes a port for connection of the antenna unit 110 .
  • the antenna unit 110 is connected to the port by a coaxial cable or the like.
  • the tray 150 is made of sheet metal, in particular is formed of a metal which is an electromagnetic wave reflecting material or an electromagnetic wave absorbing material.
  • the tray 150 includes a square flat plate 151 and a low rib 150 projecting upwards (towards the top plate 21 ) on the perimeter of the flat plate 151 .
  • the rib 152 is reinforcement to prevent the flat plate 151 from bending.
  • the tray 150 may be made of, for example, resin to which a metal foil has been applied on at least one surface thereof rather than being made of sheet metal (or entirely of metal).
  • the tray 150 is to have electromagnetic wave reflectivity or electromagnetic wave absorption.
  • the tray 150 has a shape and an area similar to a shape and a coverage area of the shopping basket 3 projected onto the top plate 21 .
  • the reading region of the reading apparatus 100 is above the tray 150 .
  • the antenna unit 110 is provided on an upper surface on a side of the flat plate section 151 surrounded by the rib 152 .
  • the control unit 160 is provided on a lower surface of the flat plate section 151 . That is, the flat plate section 151 is interposed between the antenna unit 110 and the control unit 160 . Consequently, the antenna unit 110 and the control unit 160 are prevented from adversely affecting each other. More specifically, the influence of radio waves is eliminated or reduced between the antenna unit 110 and the control unit 160 . Therefore radio waves transmitted and received by the antenna unit 110 are prevented from adversely affecting the operation of the control unit 160 , and the presence of the control unit 160 is prevented from hindering reading and writing of the RFID tag.
  • the rail 120 , the slider 130 , and the motor 140 form a moving mechanism 170 on the upper surface of the flat plate 151 that is capable of moving the antenna unit 110 in a predetermined direction.
  • the slider 130 is attached to the bottom of the antenna unit 110 .
  • the slider 130 is capable of moving on the rail in a direction parallel to a length (longitudinal direction) of the rail 120 .
  • the rail 120 is attached to the tray 150 , extending from the front to the back of the reading apparatus 100 (perpendicular to the longitudinal direction of the checkout counter 2 ).
  • the rail 120 includes a case 121 and a guide 122 .
  • the case 121 is an elongated box that is open upwards (towards the top plate 21 ).
  • the guide 122 is a shaft with screw threads on the outer circumferential surface.
  • the guide 122 is housed in the case 121 with the axial direction thereof set in the longitudinal direction of the case 121 . Both ends of the guide 122 are fixed to two inner side surfaces of the case 121 , respectively. Thus, the guide 122 is lifted off from the bottom of the case 121 .
  • the slider 130 includes a screw hole that meshes with the screw threads of the guide 122 and moves in the axial direction of the guide 122 according to rotation of the guide 122 .
  • the motor 140 generates a driving force for rotating the guide 122 .
  • a moving direction of the slider 130 is switched according to a rotating direction of the motor 140 .
  • the reading apparatus 100 under the top plate 21 of the checkout counter 2 reads the RFID tag attached to the commodity stored in the shopping basket 3 B.
  • the control unit 160 actuates the motor 140 , moves the antenna unit 110 along the rail 120 , and causes the antenna unit 110 to transmit radio waves according to the movement. Since the antenna unit 110 transmits while moving, even when a plurality of wireless tags are irregularly arranged in the reading region, it is still possible to collectively read the plurality of wireless tags. Many commodities may overlap one another in the shopping basket 3 B. Therefore, if the antenna transmits radio waves only in a fixed direction from a fixed position, RFID tags attached to some of the commodities may be in a blind spot of the radio waves. However, according to this embodiment, it is possible to improve a success rate of the collective reading process.
  • the flat plate 151 (of the tray 150 ) has electromagnetic wave reflectivity or electromagnetic wave absorption. Therefore, it is possible to prevent radio waves transmitted and received by the antenna unit 110 from adversely affecting the operation of the control unit 160 .
  • the flat plate 151 is planar, it is possible to effectively direct radio waves emitted by the antenna unit 110 to the shopping basket 3 B.
  • the antenna unit 110 and the control unit 160 are integrated as a single unit without being separately provided. That is, the reading apparatus 100 is a single, integrated unit. Therefore, the reading apparatus 100 is low maintenance. For example, if a failure occurs, the reading apparatus 100 can be replaced as a unit. Therefore, in a store, there is an advantage that, for example, a time in which a checkout lane is out of order is reduced because it is possible to swap in a substitute unit, and then take the faulty unit elsewhere for repair. Therefore, the repairing can be performed in a satisfactory work environment. A repair person visiting the store only has to be proficient in unit removal/replacement. Therefore, it is possible to prevent the time of an expert repair person from being consumed by visiting the store. Furthermore, it is possible to eliminate the inconvenience a failed immediate repair caused by a lack of replacement components store site.

Abstract

A reading apparatus includes a tray having a first surface side and a second surface side opposite the first surface side, an antenna unit disposed on the first surface side of the tray and configured to transmit a radio wave signal for reading a wireless tag and to receive a radio wave signal from the wireless tag, and a controller attached to the tray on the second surface side and configured to control the antenna unit to transmit the radio wave signal for reading the wireless tag. The controller reads data in the radio wave signal from the wireless tag received by the antenna unit. The tray includes at least one of an electromagnetic wave reflecting material or an electromagnetic wave absorbing material disposed between the antenna unit and the controller so as to block the radio wave signal for reading the wireless tag from reaching the controller.

Description

    CROSS-REFERENCE TO RELATED APPLICATION
  • This application is based upon and claims the benefit of priority from Japanese Patent Application No. 2016-145651, filed Jul. 25, 2016, the entire contents of which are incorporated herein by reference.
    • FIELD
  • An embodiment described herein relates generally to a reading apparatus.
    • BACKGROUND
  • For sales data processing, there is a reading apparatus that makes use of RFID (Radio Frequency Identification). This reading apparatus includes an antenna that transmits and receives radio waves for reading data stored in an RFID tag attached to a commodity or item. When used, the reading apparatus is connected to a POS (Point Of Sales) terminal disposed on a register counter, for example.
  • Such a reading apparatus is capable of collectively reading a plurality of RFID tags. In this regard, the RFID reading apparatus making use of the RFID may be faster than a sales data processing apparatus making use of a barcode reader, which requires each commodity or item to be read/scanned individually.
  • However, in existing reading apparatuses making use of the RFID, to prevent an antenna and a control unit, which controls transmission and reception of the antenna, from adversely affecting each other, the antenna and the control unit are disposed apart from each other. Therefore, labor and time for separately setting the antenna and the control unit and a larger space for setting up the antenna and the control unit are necessary.
  • In addition to the reading apparatus that reads the RFID tag explained above, the same problem is present in a reading apparatus that reads data from other wireless tag types that use a wireless technique other than the RFID.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a perspective view depicting a configuration and an exterior of a sales data processing system including a reading apparatus according to an embodiment.
  • FIG. 2 is a perspective view depicting an exterior of the reading apparatus.
  • FIG. 3 is a partial cross-sectional view of the structure of the reading apparatus.
    •  DETAILED DESCRIPTION
  • In general, according to one embodiment, a reading apparatus includes a tray having a first surface side and a second surface side opposite the first surface side, an antenna unit disposed on the first surface side of the tray and configured to transmit a radio wave signal for reading a wireless tag and to receive a radio wave signal from the wireless tag, and a controller attached to the tray on the second surface side and configured to control the antenna unit to transmit the radio wave signal for reading the wireless tag. The controller reads data in the radio wave signal from the wireless tag received by the antenna unit. The tray includes at least one of an electromagnetic wave reflecting material or an electromagnetic wave absorbing material disposed between the antenna unit and the controller so as to block the radio wave signal for reading the wireless tag from reaching the controller.
  • An example embodiment is explained with reference to the drawings. FIG. 1 is a perspective view showing the configuration and the exterior of a sales data processing system 1 including a reading apparatus 100. The sales data processing system 1 includes the reading apparatus 100 and a POS terminal apparatus 200. The sales data processing system 1 has a checkout counter 2 and uses shopping baskets 3 (e.g., 3A, 3B, and 3C).
  • The reading apparatus 100 reads data stored in a wireless tag (e.g., an RFID tag) attached to a commodity or an item of merchandise that has put in the shopping basket 3B, for example. The data stored by the RFID tag is, for example, a commodity code. The POS terminal apparatus 200 obtains, through inquiry to a database in an external server (not shown in the figure), commodity data such as a price set on the basis of the commodity code that has been read by the reading apparatus 100 and then registers the obtained commodity data as sales data. The POS terminal apparatus 200 performs settlement processing based on the price of the commodity (or commodities) registered as the sales data.
  • The reading apparatus 100 is incorporated in the checkout counter 2. Here, the checkout counter 2 has length sufficient for placing three to four shopping baskets 3 side by side. In FIG. 1, three shopping baskets 3A to 3C are placed on the checkout counter 2.
  • The checkout counter 2 includes a top plate 21 and a shelf 22. The top plate 21 functions as a table for placing the shopping baskets 3. The shelf 22 is used as a storage location and functions as a base for supporting the top plate 21. A longitudinal dimension (length) of the top plate 21 is the same as or slightly larger than the longitudinal dimension (length) of the shelf 22.
  • The shelf 22 includes, at a midpoint along its length, a housing section 23 for housing the reading apparatus 100. The housing section 23 is provided right under the top plate 21. The housing section 23 shown in FIG. 1 includes a front plate 23 a. However, in some embodiments, the front plate 23 a may be absent. Further, in some embodiments, the housing section 23 may be a drawer.
  • A region of the top plate 21 above the housing section 23 is a region where the RFID tag can be read by the reading apparatus 100 and is a space for placing the shopping basket 3B to be read. The region of the top plate 21 above the housing section 23 can be referred to as “a reading region.”
  • The top plate 21 has, on both sides of the reading region, spaces in which a shopping basket 3 can be placed. The space on the side of the reading region closer to the POS terminal apparatus 200 is used as a space for the shopping basket 3C. The opposite side of the reading region is used as a space for the shopping basket 3A. The shopping basket 3A is on standby for reading by the reading apparatus 100. The shopping basket 3C has already been read by the reading apparatus 100 and is to be subjected to settlement processing by the POS terminal apparatus 200.
  • FIG. 2 is a perspective view showing the exterior of the reading apparatus 100. FIG. 3 is a partial sectional view of the structure of the reading apparatus 100. The reading apparatus 100 includes an antenna unit 110, a rail 120, a slider 130, a motor 140, a tray 150, and a control unit 160.
  • The antenna unit 110 may be, for example, a planar patch antenna housed in a rectangular parallelepiped housing. The antenna unit 110 is used for both of transmission and reception and transmits radio waves at a predetermined frequency.
  • The control unit 160 can be a control board on which various chips such as a CPU (Central Processing Unit), a ROM (Read Only Memory), and a RAM (Random Access Memory) are mounted. The control unit 160 controls the transmission and reception of radio waves by the antenna unit 110 and reads data from and writes data to the RFID tag. The control unit 160 includes a port for connection of the antenna unit 110. The antenna unit 110 is connected to the port by a coaxial cable or the like.
  • In this example, the tray 150 is made of sheet metal, in particular is formed of a metal which is an electromagnetic wave reflecting material or an electromagnetic wave absorbing material. The tray 150 includes a square flat plate 151 and a low rib 150 projecting upwards (towards the top plate 21) on the perimeter of the flat plate 151. The rib 152 is reinforcement to prevent the flat plate 151 from bending.
  • In some embodiments, the tray 150 may be made of, for example, resin to which a metal foil has been applied on at least one surface thereof rather than being made of sheet metal (or entirely of metal). The tray 150 is to have electromagnetic wave reflectivity or electromagnetic wave absorption.
  • The tray 150 has a shape and an area similar to a shape and a coverage area of the shopping basket 3 projected onto the top plate 21. The reading region of the reading apparatus 100 is above the tray 150.
  • The antenna unit 110 is provided on an upper surface on a side of the flat plate section 151 surrounded by the rib 152. The control unit 160 is provided on a lower surface of the flat plate section 151. That is, the flat plate section 151 is interposed between the antenna unit 110 and the control unit 160. Consequently, the antenna unit 110 and the control unit 160 are prevented from adversely affecting each other. More specifically, the influence of radio waves is eliminated or reduced between the antenna unit 110 and the control unit 160. Therefore radio waves transmitted and received by the antenna unit 110 are prevented from adversely affecting the operation of the control unit 160, and the presence of the control unit 160 is prevented from hindering reading and writing of the RFID tag.
  • The rail 120, the slider 130, and the motor 140 form a moving mechanism 170 on the upper surface of the flat plate 151 that is capable of moving the antenna unit 110 in a predetermined direction. The slider 130 is attached to the bottom of the antenna unit 110. The slider 130 is capable of moving on the rail in a direction parallel to a length (longitudinal direction) of the rail 120.
  • The rail 120 is attached to the tray 150, extending from the front to the back of the reading apparatus 100 (perpendicular to the longitudinal direction of the checkout counter 2). The rail 120 includes a case 121 and a guide 122. The case 121 is an elongated box that is open upwards (towards the top plate 21). The guide 122 is a shaft with screw threads on the outer circumferential surface. The guide 122 is housed in the case 121 with the axial direction thereof set in the longitudinal direction of the case 121. Both ends of the guide 122 are fixed to two inner side surfaces of the case 121, respectively. Thus, the guide 122 is lifted off from the bottom of the case 121.
  • The slider 130 includes a screw hole that meshes with the screw threads of the guide 122 and moves in the axial direction of the guide 122 according to rotation of the guide 122. The motor 140 generates a driving force for rotating the guide 122. A moving direction of the slider 130 is switched according to a rotating direction of the motor 140.
  • The reading apparatus 100 under the top plate 21 of the checkout counter 2 reads the RFID tag attached to the commodity stored in the shopping basket 3B.
  • During the reading, the control unit 160 actuates the motor 140, moves the antenna unit 110 along the rail 120, and causes the antenna unit 110 to transmit radio waves according to the movement. Since the antenna unit 110 transmits while moving, even when a plurality of wireless tags are irregularly arranged in the reading region, it is still possible to collectively read the plurality of wireless tags. Many commodities may overlap one another in the shopping basket 3B. Therefore, if the antenna transmits radio waves only in a fixed direction from a fixed position, RFID tags attached to some of the commodities may be in a blind spot of the radio waves. However, according to this embodiment, it is possible to improve a success rate of the collective reading process.
  • In the reading apparatus 100, the flat plate 151 (of the tray 150) has electromagnetic wave reflectivity or electromagnetic wave absorption. Therefore, it is possible to prevent radio waves transmitted and received by the antenna unit 110 from adversely affecting the operation of the control unit 160.
  • In the reading apparatus 100, since the flat plate 151 is planar, it is possible to effectively direct radio waves emitted by the antenna unit 110 to the shopping basket 3B.
  • According to this embodiment, the antenna unit 110 and the control unit 160 are integrated as a single unit without being separately provided. That is, the reading apparatus 100 is a single, integrated unit. Therefore, the reading apparatus 100 is low maintenance. For example, if a failure occurs, the reading apparatus 100 can be replaced as a unit. Therefore, in a store, there is an advantage that, for example, a time in which a checkout lane is out of order is reduced because it is possible to swap in a substitute unit, and then take the faulty unit elsewhere for repair. Therefore, the repairing can be performed in a satisfactory work environment. A repair person visiting the store only has to be proficient in unit removal/replacement. Therefore, it is possible to prevent the time of an expert repair person from being consumed by visiting the store. Furthermore, it is possible to eliminate the inconvenience a failed immediate repair caused by a lack of replacement components store site.
  • While certain embodiments have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the inventions. Indeed, the novel embodiments described herein may be embodied in a variety of other forms; furthermore, various omissions, substitutions and changes in the form of the embodiments described herein may be made without departing from the spirit of the inventions. The accompanying claims and their equivalents are intended to cover such forms or modifications as would fall within the scope and spirit of the inventions.

Claims (20)

What is claimed is:
1. A reading apparatus, comprising:
a tray having a first surface side and a second surface side opposite the first surface side;
an antenna unit disposed on the first surface side of the tray and configured to transmit a radio wave signal for reading a wireless tag and to receive a radio wave signal from the wireless tag; and
a controller attached to the tray on the second surface side and configured to control the antenna unit to transmit the radio wave signal for reading the wireless tag, the controller being configured to read data in the radio wave signal from the wireless tag received by the antenna unit, wherein
the tray comprises at least one of an electromagnetic wave reflecting material or an electromagnetic wave absorbing material disposed between the antenna unit and the controller so as to block the radio wave signal for reading the wireless tag from reaching the controller.
2. The reading apparatus according to claim 1, further comprising:
an antenna moving mechanism attached to the first surface side of the tray and configured to support the antenna unit and move the antenna unit along a direction that is parallel to the first surface side.
3. The reading apparatus according to claim 2, wherein the antenna moving mechanism includes a rail attached to the first surface side of the tray and the antenna moving mechanism is configured to move the antenna unit along the rail when the antenna unit is transmitting the radio wave signal for reading the wireless tag.
4. The reading apparatus according to claim 1, wherein the tray comprises a metal.
5. The reading apparatus according to claim 1, wherein the tray comprises a sheet of metal.
6. The reading apparatus according to claim 1, wherein the tray comprises a resin sheet and a metal foil covering a surface of the resin sheet.
7. The reading apparatus according to claim 1, wherein the wireless tag is an RFID tag.
8. The reading apparatus according to claim 1, further comprising:
a housing into which the tray, the antenna unit, and the controller are installed as an integrated unit; and
a countertop above the housing, wherein a portion of the countertop directly above the integrated unit is substantially transparent to the radio wave signal for reading the wireless tag.
9. A reading apparatus, comprising:
a tray having a first surface side and a second surface side opposite the first surface side;
an antenna moving mechanism attached to the tray on the first surface side;
an antenna supported by the antenna moving mechanism on the first surface side of the tray and configured to transmit and receive radio waves for reading information from a wireless tag; and
a control board disposed on the second surface side of the tray and including a processor for controlling the antenna moving mechanism and the antenna in a tag reading process for reading information from the wireless tag, wherein
the tray comprises at least one of an electromagnetic wave reflecting material or an electromagnetic wave absorbing material disposed between the antenna and the control board so as to block the radio waves transmitted by the antenna during the tag reading process from reaching the processor.
10. The reading apparatus according to claim 9, wherein
the tray comprises a flat plate portion and a rib on an outer perimeter of the flat plate portion, the rib projecting from the flat plate towards the first surface side,
the flat plate portion is between the antenna and the control board, and
the flat plate portion is a sheet of metal.
11. The reading apparatus according to claim 9, wherein the antenna moving mechanism includes a rail attached to the first surface side of the tray and the antenna moving mechanism is configured to move the antenna along the rail during the tag reading process.
12. The reading apparatus according to claim 9, wherein the tray comprises a metal.
13. The reading apparatus according to claim 9, wherein the tray comprises a sheet of metal.
14. The reading apparatus according to claim 9, wherein the tray comprises a resin sheet and a metal foil covering a surface of the resin sheet.
15. The reading apparatus according to claim 9, wherein the wireless tag is an RFID tag.
16. The reading apparatus according to claim 9, wherein the antenna moving mechanism comprises:
a rail that is attached to the tray, the rail including a case and a shaft housed in the case;
a motor connected to the shaft; and
a slider attached to the antenna and connected to the shaft, and the slider being configured to move along the rail when the shaft rotates.
17. The reading apparatus according to claim 9, further comprising:
a housing into which the tray, the antenna, and the control board are installed as an integrated unit; and
a countertop above the housing, wherein a portion of the countertop directly above the integrated unit is substantially transparent to the radio wave signal for reading the wireless tag.
18. A sales checkout station, comprising:
a countertop having a portion that is substantially transparent to a radio wave signal for reading a wireless tag associated with an item of merchandise;
a housing below the portion of the countertop; and
an integrated reading apparatus disposed in the housing and comprising:
a tray having a first surface side and a second surface side opposite the first surface side;
an antenna unit disposed on the first surface side of the tray and configured to transmit a radio wave signal for reading the wireless tag and to receive a radio wave signal from the wireless tag; and
a controller attached to the tray on the second surface side and configured to control the antenna unit to transmit the radio wave signal for reading the wireless tag, the controller being configured to read data in the radio wave signal from the wireless tag received by the antenna unit, wherein
the tray comprises at least one of an electromagnetic wave reflecting material or an electromagnetic wave absorbing material disposed between the antenna unit and the controller so as to block the radio wave signal for reading the wireless tag from reaching the controller.
19. The sales checkout station according to claim 18, wherein the integrated reading apparatus further comprises:
an antenna moving mechanism attached to the first surface side of the tray and configured to support the antenna unit and move the antenna unit along a direction that is parallel to the first surface side.
20. The sales checkout station according to claim 18, further comprising:
a point-of-sale terminal connected to the integrated reading apparatus to receive tag information from the integrated reading apparatus corresponding to items of merchandise on the portion of the countertop during a tag reading process.
US15/647,791 2016-07-25 2017-07-12 Reading apparatus Abandoned US20180025591A1 (en)

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CN107657768B (en) 2021-05-18
CN107657768A (en) 2018-02-02
JP2018018158A (en) 2018-02-01
US20190355223A1 (en) 2019-11-21
EP3282384A1 (en) 2018-02-14
US11217071B2 (en) 2022-01-04

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