JP2006115330A - Antenna installation tool for id tag reader and ic tag reader - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stably read information even when a plurality of readers are adjacently arranged, when an RF-ID is introduced and a unique ID is managed. <P>SOLUTION: An antenna installation tool 40 has a casing 43 for housing a flat antenna 35 having a radio wave irradiation surface 35a, a pair of antenna support members 41 attached to inner surfaces of the housing 43 facing each other, and a pair of shield plates 44 attached to side surfaces of the casing 43 facing each other. A plurality of grooves 42 for variably supporting the positions of the antenna 35 in the housing 43 in a direction perpendicular to the radio wave irradiation surface 35a. The shield plates 44 have a shielding effect to a radio wave emitted from the antenna 35. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is used for personal computer (hereinafter referred to as “PC”) and its peripheral devices, as well as production process management, inventory management, and physical distribution management of goods on production lines and warehouses of goods such as food, clothing and household goods. When using the IC tag to which a unique ID is assigned, the IC tag is assigned to a plurality of adjacent IC tags, when entering or leaving a station ticket gate, at a store, an exhibition, etc., or when producing a prize purchased at a store. In particular, the present invention relates to the installation of the antenna.

  In recent years, devices such as PCs and peripheral devices have become more and more diverse according to user needs, and there are increasing cases in which the units incorporated in the interior are different even though they are the same in appearance. For this reason, the management of units and the management of assembly processes accompanying the switching of production lines have become complicated.

Under such circumstances, Patent Document 1 discloses that when manufacturing a panel used as an outer wall material of a house, an ID card assigned with a unique form number is attached to the form, and the reading set in each process is performed. It is disclosed that information on an ID card is read out by an apparatus, and the read form number is compared with production plan data to manage which process the form form is supplied to next. Further, in Patent Document 2, an IC tag is attached to each part constituting a finished product, and various information relating to the part to which the IC tag is attached is written to and read from the IC tag in the product manufacturing process. It is disclosed that the manufacturing process of a product is managed.
JP 2000-167732 A JP 2003-271216 A

  As described above, introducing an IC tag system into a production line and managing processes based on information in the IC tag is effective in efficiently producing products. However, since an IC tag generally uses RF-ID (Radio Frequency Identification) and transmits / receives information without contact with an information reading / writing device (reader / writer), a reader / writer installed in each process is used. If the writers are close to each other, radio waves emitted from the reader / writer may interfere with each other, and information reading may become unstable. In addition, when a plurality of IC tags exist in the communicable range of the reader / writer, information other than the target IC tag may be read out. In the manufacture of the outer wall material as described in Patent Document 1, such a problem is unlikely to occur because the mold itself to which the IC tag is attached has a large size. However, in the manufacture of a PC, a portable electronic device, etc. The area occupied by the line may be reduced, and the pitch between processes in the same production line is minimized as long as the work is not hindered. This makes the problem of reading the information more and more pronounced. In order to solve this problem, it is conceivable to change to an antenna having a different size or shape and adjust the communicable distance according to the information reading state. However, changing to a different antenna each time the readout state changes is not preferable because it significantly increases costs and time due to new introduction of antennas and verification for selection.

  The above problem may occur not only in the device manufacturing line but also in the case where unique IDs are managed simultaneously at a plurality of locations adjacent to each other using an IC tag.

  Therefore, the present invention is to enable stable reading of information even when a plurality of reading devices are arranged close to each other when managing a unique ID by introducing an RF-ID. Objective.

In order to achieve the above object, the antenna installation jig of the present invention uses an IC tag in which a unique ID is written to read out the ID in a non-contact manner when managing the ID in a plurality of work areas. An antenna installation jig used to install an antenna in the plurality of work areas,
The antenna is a flat antenna having a radio wave irradiation surface for irradiating a radio wave for reading the ID,
A shielding member that shields irradiation of radio waves from the antenna to an adjacent work area among the plurality of work areas;
Support means for supporting the position of the antenna with respect to the shielding member in an adjustable manner.

  In the antenna installation jig described above, the antenna installation jig further includes a housing for accommodating the antenna, and the support means is attached to the opposing inner surfaces of the housing to support both side ends of the antenna, It may be a pair of members in which a plurality of grooves into which are inserted are formed. In this case, the shielding member can be composed of a metal plate attached to the housing. Moreover, you may further have the attachment member for fixing a housing | casing to the worktable of a working area.

The reading device of the present invention is installed in the plurality of work areas in order to read the IDs in a non-contact manner when managing the IDs in a plurality of work areas using an IC tag in which a unique ID is written. A reading device,
A flat antenna having a radio wave irradiation surface for radiating a radio wave for reading the ID;
A communication circuit unit that converts an RF signal transmitted from the IC tag into digital by irradiating a radio wave from the antenna;
An arithmetic processing unit that performs arithmetic processing on the signal converted by the communication circuit unit;
A shielding member that shields irradiation of radio waves from the antenna to an adjacent work area among the plurality of work areas;
The antenna is provided so that its position relative to the shielding member can be adjusted.

  In the readout device of the present invention, a housing that houses the antenna, and a plurality of grooves that are attached to the opposing inner surfaces of the housing to support both end portions of the antenna and into which the side end portions of the antenna are respectively inserted. You may have a pair of supporting member in which was formed. In this case, the shielding member can be composed of a metal plate attached to the housing. Moreover, you may further have the attachment member for fixing a housing | casing to the worktable of a working area.

  In the antenna installation jig and the reading device of the present invention, the shielding member suppresses the spread of the radio wave radiated from the antenna to the adjacent work area, and the spread is achieved by adjusting the position of the antenna with respect to the shielding member. It can be adjusted.

  According to the present invention configured as described above, the spread of the radio wave irradiated from the antenna to the adjacent work area is suppressed, and the position of the antenna with respect to the shielding member can be adjusted. The target IC tag can be read stably without being affected by the area.

  Next, embodiments of the present invention will be described with reference to the drawings.

  The present invention uses an RF-ID (Radio Frequency-Identification) called an IC tag, contactless data carrier, wireless IC tag, contactless IC, contactless IC label, contactless IC tag, etc. It is. In the present invention, an IC tag indicates a medium having an integrated circuit with a memory that performs data communication using a non-contact communication medium such as a radio and records information such as a solid identification code.

  FIG. 1 is a schematic diagram of a manufacturing system according to an embodiment of the present invention. In this embodiment, a notebook PC manufacturing system will be described as an example. This manufacturing system manages individual products to be manufactured using RF-ID, and is roughly divided into a line management apparatus 10 that manages each process of the manufacturing system, and an operator who processes each process. And an assembly line 15 that actually performs the above operations and a plurality of printers 13a to 13d that print various labels and warranty cards. Although only one manufacturing system is shown in FIG. 1, one or a plurality of manufacturing systems having the same configuration are arranged in parallel in the illustrated manufacturing system. The models of products manufactured in each manufacturing system may be the same or different.

  The line management apparatus 10 includes a line control unit 11 and a production instruction database 12. The production instruction database 12 stores items such as an ID number, delivery date, order number, model number, serial number, and configuration code for each product to be manufactured, and a work procedure for each process when manufacturing each product. . These data are used for manufacturing the IC tag 20. The line control unit 11 reads data necessary for manufacturing the IC tag 20 from the production instruction database 12, and sends the read data to the printer 13a. The printer 13 a performs printing on the IC tag 20 in accordance with the data sent from the line control unit 11.

  The IC tag 20 is a card-like tag in which an IC chip (not shown) is embedded in a resin base material. Further, the IC tag 20 is not attached to the product but is used only in the manufacturing system, and can be recycled by updating data in the IC chip. Therefore, the printer 13a can repeatedly print on the IC tag 20 as well.

  As shown in FIG. 2, an ID number, a delivery date, an order number, a model number, a serial number, and a configuration code are printed on the surface of the IC tag 20. In addition, since the IC tag 20 is warped by repeated printing on the IC tag 20, the number of times the IC tag 20 is recycled is limited. Therefore, the number of times the IC tag 20 is issued and the number of times it can be recycled (the number of remaining times) are also printed on the surface of the IC tag 20. This information is printed so that the operator can visually confirm the main items related to the product currently manufactured. Further, a two-dimensional code 20 a is printed on the surface of the IC tag 20. The two-dimensional code 20a indicates items such as an order number, a model number, a serial number, and a configuration code. The two-dimensional code 20a is used to read the necessary contents at the time of DMI writing in which basic information such as BIOS is written in the storage unit in the product testing process. The IC chip built in the IC tag 20 stores the product ID number and the number of times the IC tag 20 is recycled. Information is written to the IC chip by a writing device (not shown).

  Referring to FIG. 1 again, the IC tag 20 manufactured as described above is placed in the first step of the assembly line 15 by an operator or automatically. In the present embodiment, the assembly line 15 includes a plurality of work areas, two assembly processes UA1, UA2, three inspection processes UT1 to UT3, and a packing process P, and the work is sequentially performed through these processes. Done. In the assembly steps UA1 and UA2, various units such as a liquid crystal display unit, a keyboard unit, a power supply unit, and an optical disk drive unit, which are input to the assembly line 15, are assembled. In the inspection steps UT1 to UT3, an operation test and an appearance inspection of a product in which various units are assembled are performed. The products that have passed the inspections in the inspection steps UT1 to UT3 go to the packing step P, and are packed in a packing box together with a battery, an AC adapter, and other accessories.

  In the assembly line 15, as shown in FIG. 3, each product 25 (precisely, the product that has not been completed until the inspection process is a semi-finished product, but for the sake of simplicity of explanation, the product including the semi-finished product is also included. Is mounted on a work pallet 18 provided so as to be movable along the work table together with the IC tag 20 housed in the holder 21. The workbench continuously connects the assembly processes UA1, UA2, the inspection processes UT1 to UT3, and the packing process P, and the work pallet 18 is provided so as to be able to move sequentially between these processes. The product 25 is moved together with the IC tag 20 in order from the assembly process UA1, UA2 to the packing process P through the inspection processes UT1 to UT3 while being placed on the work pallet 18.

  A process management device 30 for managing work contents in each process is installed at each work position of each assembly process UA1, UA2, final inspection process UT3 and packing process P. A printer 13b for printing a nameplate to be attached to a product is further installed at the work position of the final inspection process UT3 based on a command from the process management apparatus 30. Similarly, a printer 13c for printing a warranty card and a printer 13d for printing a box label are installed at the work position in the packing process P.

  As shown in FIG. 4, the process management device 30 is unique to the process control unit 33 connected to the line control unit 11 of the line management device 10 (see FIG. 1) and the process in which the process management device 30 is installed. An ID storage unit 31 that stores an ID, a display unit 32 such as a CRT or an LCD, and a reading device 34 for reading out information written in an IC chip of the IC tag 20 in a non-contact manner. The reading device 34 is for reading information written in the IC tag 20 in a non-contact manner using RF-ID. As shown in FIG. 5, the IC tag 20 is irradiated with radio waves to irradiate the IC tag. 20, an antenna 35 that receives an RF signal sent from the communication circuit unit 36, a communication circuit unit 36 that converts the received RF signal into a digital signal, and an arithmetic process on the signal converted by the communication circuit unit 36 (in this case, a process) And an arithmetic processing unit 37 for outputting to the control unit 33).

  As described above, the IC tag 20 is placed on the work pallet 18 together with the product 25 and moves to each process. When the IC tag 20 moves to the process in which the process management device 30 is installed, the IC tag 20 is read by the reading device 34. The ID number is read from 20 and sent to the process control unit 33. When the ID number is sent, the process control unit 33 reads the ID unique to the process stored in the ID storage unit 31 and sends it to the ID number of the IC tag 20 and the line control unit 11.

  As described above, the production instruction database 12 includes items such as an ID number, delivery date, order number, model number, serial number, and configuration code, and each process in manufacturing the product 25 for the product 25 manufactured on the assembly line 15. The work procedure for each process when the product 25 is manufactured is stored in correspondence with the ID number of the IC tag 20 and the ID unique to each process.

  When the ID number of the IC tag 20 and the ID unique to each process are sent from the process control unit 33 of the process management apparatus 30, the line control unit 11 stores them in the production instruction database 12 corresponding to these. Are read out and returned to the process control unit 33 that sent them. Further, when the work contents include a nameplate affixing work, a warranty card bundling work, and a box label affixing work, the line control unit 11 stores the nameplate, warranty card, box stored in the production instruction database 12. Data for printing the label is read and sent to the process control unit 33. In addition, when the work contents are a unit incorporated in the product 25 or an accessory included in the product, and these IDs are sent, the line control unit 11 instructs the production. The ID of each unit or accessory is stored in correspondence with the ID number of the IC tag 20 in the database 12.

  When the work procedure is sent, the line control unit 11 causes the display unit 32 to display the work procedure. At this time, if data for printing the nameplate, warranty card, and box label is also sent, the printers 13a to 13d perform the printing.

  The worker performs a predetermined work based on the work procedure displayed on the display unit 32, and in the case of using a name plate, a warranty card, and a box label, the name plate printed by the printers 13b to 13d. Work with warranty cards and box labels.

  The product 25 which has been finished up to the packing process P and packed in the box is loaded on the pallet 19 for shipment. Further, the IC tag 20 is collected and recycled at this stage. At this time, the line control unit 11 checks whether the number of recyclings stored as the in-chip information of the IC tag 20 exceeds a predetermined number of times, for example, 200 times. Target for disposal. When the number of times of recycling is within a predetermined number of times, data of a new product 25 to be manufactured is stored. Each item and two-dimensional code printed on the surface of the IC tag 20 are erased and rewritten.

  As described above, in the present embodiment, the IC tag 20 is read out when necessary in each process of the assembly line 15, the work procedure is displayed, and a nameplate, a warranty card, and the like are printed according to the process. Because it is a so-called on-demand system, production instructions, nameplates, warranty cards, box labels are not missing, duplicated, or lost.

  The line control unit 11, the production instruction database 12, and the printer 13a are configured as a general computer system, and these may be configured as one control unit.

  As described above, in the assembly line 15 of the present embodiment, predetermined work and processing are performed according to information given to the IC tag 20 that moves through each process together with the product 25. It is important to read. Therefore, as shown in FIG. 3, the antenna 35 is positioned so that the IC tag 20 placed on the work pallet 18 can be read most easily without interfering with the movement of the work pallet 18 and the work by the worker. It is installed under the work pallet 18. The antenna 35 is a flat plate, and is installed so that the radio wave irradiation surface, which is the main surface, is parallel to the surface on which the IC tag 20 of the work pallet 18 is installed.

Here, the communicable range of the antenna 35 is considered. As shown in FIG. 6, the communicable range C ₀ of the antenna 35 extends not only in the direction perpendicular to the radio wave irradiation surface 35a of the antenna 35 but also in the direction parallel to the radio wave irradiation surface 35a. In particular, when the communication frequency is 13.56 MHz, it has a large spread in a direction perpendicular to the communication distance CD, in other words, a direction including a direction parallel to the moving direction LD of the work pallet 18. Yes. For this reason, if the preceding and following processes are close to each other, the radio waves irradiated from the adjacent antennas 35 interfere with each other, and the target IC tag 20 cannot be read, or the IC tag 20 of the adjacent process is read. There is a risk of stagnation.

  Therefore, in the present invention, as shown in FIG. 7, a first shielding member 38a and a second shielding member 38b having a shielding effect against radio waves irradiated from the antenna 35 are installed.

The first shielding member 38 a is installed on both sides of the antenna 35 and has surfaces extending in a direction perpendicular to the radio wave irradiation surface 35 a of the antenna 35. By installing the first shielding member 38a, the spread of the radio wave irradiated from the antenna 35 to the side where the first shielding member 38a is installed is suppressed. Accordingly, the first shielding member 38a, the moving direction LD of the working pallet 18 be provided on both sides of the antenna 35, the communication range C _1, can be suppressed so as not to interfere with the front and rear steps.

The second shielding member 38b is installed on the side of the antenna 35 opposite to the side facing the IC tag 20. The radio wave for reading out the IC tag 20 is actually irradiated from the back surface of the radio wave irradiation surface 35a (the surface opposite to the surface facing the IC tag 20). If there is no second shielding member 38b, the radio wave irradiated from the back surface of the antenna 35 wraps around the work pallet 18 from the outside of the first shielding member 38a, as shown by the broken line arrow in FIG. thereby expanding the communicable range C _1. Therefore, by installing the second shielding member 38b, it is possible to more effectively suppress the communicable range C _1.

  Here, if the radio wave for reading irradiated from the back surface of the antenna 35 is completely shielded, the communication strength may be reduced, and the reading performance may be affected. Therefore, as shown in FIG. 7, it is desirable to provide a gap between the first shielding member 38 a and the antenna 35 so that radio waves irradiated from the back surface of the antenna 35 pass through. By providing such a gap, radio waves irradiated from the back surface of the antenna 35 can wrap around the work pallet 18 through this gap, as indicated by the thick arrow in FIG. As a result, a decrease in communication strength due to the installation of the second shielding member 38b is suppressed. In addition, if the distance between the antenna 35 and the first shielding member 35a is extremely narrow, the impedance of the antenna 35 is greatly deviated, so that the magnetic field strength is reduced and the communication distance is shortened. In the worst case, communication cannot be performed. Conceivable. Providing a gap between the antenna 35 and the first shielding member 38a suppresses a deviation in impedance of the antenna 35, thereby enabling good reading of the IC tag 20.

  Note that the gap between the antenna 35 and the first shielding member 38a here is used to circulate the radio wave irradiated from the back surface of the antenna 35 toward the IC tag 20, so that the radio wave passes therethrough. If possible, another member such as an insulator may be interposed in the gap.

In the direction perpendicular to the wave radiation surface 35a of the antenna 35, the spread of the projection height H of the shield member 38 from the radio wave radiating surface 35a, the communication range C _1, the in-plane direction parallel to the radio wave radiation surface 35a Affects the size of and the communication distance CD. The larger the protruding height H, the communicable range C ₁ narrows, it is shortened communication distance CD. Therefore, the protrusion height H can be adjusted, the communicable range C ₁ can be adjusted in the in-plane direction parallel to the radio wave irradiation surface 35a, and the communication distance CD can be adjusted as appropriate. The communicable range C ₁ and the communication distance CD are optimally adjusted according to the contents and the arrangement state of each process, and the reading of the IC tag 20 by the antenna 35 can be performed satisfactorily.

  FIG. 8 shows a perspective view of an example of an antenna installation jig used for installing the antenna as shown in FIG. An antenna installation jig 40 shown in FIG. 8 is configured in a box shape having an open upper surface, and a pair of housings 43 that house the antenna 35 therein, and a pair of housings 43 that are attached to the two inner surfaces facing each other. An antenna support member 41 (only one is shown in FIG. 8), a shield plate 44 attached to the outer and bottom surfaces of the housing 43, and an attachment arm 45 for fixing the antenna installation jig 40 to the work table. Have

  The housing 43 and the antenna support member 41 are formed of a member that does not affect the irradiation of radio waves from the antenna 35, for example, an insulator such as resin or wood. The antenna support member 41 is formed with a groove 42 into which the side end portion of the antenna 35 is fitted. A pair of antenna support members 41 are attached to the inner surfaces of the housing 43 facing each other, and the groove 42 of each antenna support member 41 is attached. The antenna 35 is supported in the housing 43 by inserting both end portions of the antenna 35 into the antenna 43. Further, the position of the antenna 35 in the direction perpendicular to the radio wave irradiation surface 35a of the antenna 35 (the radio wave irradiation direction from the antenna 35) in the housing 43, which corresponds to the protruding height H of the shielding member 38 in FIG. A plurality of grooves 42 are formed in the direction of radio wave irradiation from the antenna 35. The groove 42 into which the antenna 35 is inserted is determined according to the pitch of each process of the assembly line itself, the position of the adjacent assembly line, or the presence or absence. In this example, six grooves 42 are formed on the antenna support member 41 at a 2 cm pitch. Further, the front or back surface of the housing 43 can be attached to and detached from the housing 43 so that the antenna 35 can be slid along the groove 42 to be inserted into and removed from the housing 43 when the position of the antenna 35 is adjusted. Alternatively, it can be opened and closed.

  The shield plate 44 is a member having a shielding effect against radio waves irradiated from the antenna 35, and corresponds to the shielding members 38a and 38b shown in FIG. As the shield plate 44, a metal such as aluminum, copper, stainless steel, or brass can be used. The shield plate 44 is attached to the outer surface of the housing 43, and particularly on the side surface of the housing 43, the housing 43 and the antenna support member 41 are interposed between the antenna 35 and the shield plate 44. . That is, the shield plate 44 of the housing 43 is installed with a gap from the antenna 35.

  The attachment arm 45 is a member having a hook-shaped tip, and is attached to both side surfaces of the housing 43 so as to be rotatable two by two. The antenna installation jig 40 can be fixed to the work bench by fitting the hook-like portion into the pipe of the work bench with the mounting arm 45 oriented in an appropriate direction.

  As described above, the communicable range and communication distance of the antenna 35 can be set according to the work status and each process in the process with an extremely simple configuration in which the antenna support member 41, the shield plate 44, and the mounting arm 45 are attached to the housing 43. The IC tag 20 can be satisfactorily read in each process when the RF-ID system is optimally adjusted according to the distance between the processes and the RF-ID system is introduced into the assembly line of the device.

  In the example shown in FIG. 8, the shielding effect against the radio wave irradiated from the antenna 35 on both sides of the antenna 35 is exhibited by the shield plates 44 attached to both side surfaces of the casing 43. Both side surfaces themselves may be made of the same member as the shield plate 44. Or the coating material containing a metal powder can be apply | coated to the both sides | surfaces of the housing | casing 43, and a shield effect can also be exhibited by this. Although FIG. 8 shows an example in which the position adjustment of the antenna 35 is performed stepwise, the position adjustment may be performed steplessly using, for example, a gear transmission mechanism or a belt transmission mechanism.

  In the present embodiment, the notebook PC assembly line has been described as an example. However, the present invention can also be applied to a desktop PC assembly line. However, when the present invention is applied to an assembly line for a desktop PC, the following points need to be considered.

  Since the desktop PC has a larger installation area than the notebook PC and an occupied area on the work pallet 18, there may be no space for placing the IC tag 20 on the work pallet 18. In such a case, it is conceivable to place it on the desktop PC so as not to interfere with work, for example, on the PC main body or on the display. However, it is difficult to read the IC tag 20 placed on the PC main body or the display with the antenna 35 installed under the work pallet 18.

  Therefore, when the present invention is applied to a desktop PC assembly line, as shown in FIG. 9, an antenna 35 is installed above the work pallet 18 on the work table, and the top of the desktop PC 55 or the display. The IC tag 20 placed on is read from above. In this case, the installation arm 45 of the antenna installation jig 40 shown in FIG.

  Here, the mounting arm 45 is used to fix the antenna installation jig 40 to the work table. However, the mounting arm 45 may be fixed by appropriate fixing means such as a bolt and a nut, regardless of the mounting arm 45.

  In this embodiment, the IC tag 20 is used for reading information. However, since the IC tag 20 can also write information, the structure of the antenna installation jig 40 is applied to the installation of the antenna for the reader / writer. For example, it can be used to update information written in the IC tag 20.

  In the present embodiment, an example in which the present invention is applied to an assembly line of equipment has been described. However, the present invention is not limited to the manufacture of equipment, and is applicable to various articles such as food, clothing, and household goods. In the production process management, for example, inventory management and logistics management in a warehouse, individual article information is read out in a plurality of work areas using RF-ID, and individual articles are managed based on the result. It can also be applied to. Furthermore, the present invention provides a plurality of IC tags even when entrance / exit management is performed with an IC tag at a ticket gate, a store, an exhibition, etc. at a station, or when a product purchased at a store is cleared using an IC tag. It can also be applied when reading in the work area.

It is the schematic of the assembly line by one Embodiment of this invention. It is a top view which shows an example of the IC tag used for this invention. It is a typical perspective view of the work bench in the assembly line shown in FIG. It is a block diagram of a process management device. It is a block diagram of a reading device. It is a figure explaining the communicable range with an antenna single-piece | unit. It is a figure explaining the communicable range at the time of arrange | positioning the shielding member on the both sides of an antenna. It is a perspective view of an example of the antenna installation jig by the present invention. It is a typical perspective view of the work table in the assembly line of a desktop personal computer.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Line management apparatus 13a-13d Printer 15 Assembly line 18 Work pallet 19 Pallet 20 IC tag 25 Product 30 Process management apparatus 34 Reading apparatus 35 Antenna 35a Radio wave irradiation surface 36 Communication circuit part 37 Operation processing part 38 Shielding member 40 Antenna installation jig 41 Antenna support member 42 Groove 43 Housing 44 Shield plate 45 Mounting arm

Claims (10)

When managing the ID in a plurality of work areas using an IC tag in which a unique ID is written, it is used to install an antenna for reading the ID in a non-contact manner in the plurality of work areas. An antenna installation jig,
The antenna is a flat antenna having a radio wave irradiation surface for irradiating a radio wave for reading the ID,
A shielding member that shields irradiation of radio waves from the antenna to an adjacent work area among the plurality of work areas;
An antenna installation jig comprising: a support unit that supports the position of the antenna with respect to the shielding member so as to be adjustable. The shielding member has a shielding effect against radio waves emitted from the antenna, and is disposed on a side opposite to the side of the antenna facing the IC tag, and a pair of first members disposed opposite to each other with the antenna interposed therebetween. A second member,
The antenna installation jig according to claim 1, wherein the support means variably supports the position of the antenna in a direction perpendicular to the radio wave irradiation surface. A housing that houses the antenna therein;
The support means is a pair of members that are attached to opposing inner surfaces of the housing in order to support both end portions of the antenna, and are formed with a plurality of grooves into which the side end portions of the antenna are respectively inserted. The antenna installation jig according to claim 1 or 2.   The antenna installation jig according to claim 3, wherein the housing is made of an insulator, and the shielding member is made of a metal plate attached to the housing.   The antenna installation jig according to claim 3 or 4, further comprising an attachment member for fixing the housing to a work table in the work area. A reading device installed in the plurality of work areas in order to read the IDs in a non-contact manner when managing the IDs in a plurality of work areas using an IC tag in which a unique ID is written. ,
A flat antenna having a radio wave irradiation surface for radiating a radio wave for reading the ID;
A communication circuit unit that converts an RF signal transmitted from the IC tag into digital by irradiating a radio wave from the antenna;
An arithmetic processing unit that performs arithmetic processing on the signal converted by the communication circuit unit;
A shielding member that shields irradiation of radio waves from the antenna to an adjacent work area among the plurality of work areas;
A reading device in which the antenna is provided so that its position relative to the shielding member can be adjusted. The shielding member has a shielding effect against radio waves emitted from the antenna, and is disposed on a side opposite to the side of the antenna facing the IC tag, and a pair of first members disposed opposite to each other with the antenna interposed therebetween. A second member,
The reading device according to claim 6, wherein the antenna is provided such that a position in a direction perpendicular to the radio wave irradiation surface with respect to the shielding member can be adjusted. A housing that houses the antenna therein;
7. A pair of support members, which are attached to opposing inner surfaces of the housing to support both end portions of the antenna and each have a plurality of grooves into which the side end portions of the antenna are inserted. Or the readout device according to 7;   The reading device according to claim 8, wherein the housing is made of an insulator, and the shielding member is made of a metal plate attached to the housing.   The reading device according to claim 8, further comprising an attachment member for fixing the housing to a work table in the work area.

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