JP5037912B2 - Wireless identification tag device - Google Patents

Description

  The present invention relates to a wireless identification tag device.

  Conventionally, in product management in manufacturing, distribution, sales, etc., radio frequency identification (RFID) technology that transmits and reads information signals by radio waves at any time is used to increase management efficiency and reduce management costs. Yes.

  FIG. 5 is a circuit block diagram schematically showing a configuration of an example of a conventional wireless identification tag device. As shown in the figure, this wireless identification tag device is attached to, for example, a product (not shown), tag means 7 displaying product information, a reader 8 for reading product display information of the tag, and the reader 8 and a terminal 9 electrically connected.

  The tag means 7 is an inner layer tag comprising, for example, an antenna 712 provided on a base sheet, and an IC chip 711 which is electrically connected to the antenna 712 and bonded to be embedded on the base sheet with an adhesive. 71 is sealed by a cover material 72. The tag means 7 is used so as to be attached to a product or tied with a thin string, for example.

  The reader 8 senses information recorded on the IC chip 711 by communicating with the tag unit 7 via the antenna 712 and inputs the information to the terminal 9. When the tag means 7 does not exist within the communicable range, it enters a standby state. The information here includes information including, for example, product components, weight, class, and lot number.

  The terminal 9 can check the lot number of the product, manage the inventory quantity, and the delivery based on the information supplied from the reader 8.

  The tag means 7 can be roughly divided into dedicated metal products and non-metal products. Since the tag means dedicated to metal products is usually expensive and large in size, it is difficult to reduce the manufacturing cost. Moreover, since the antenna communicates product information at 2.45 GHz, the communication range is limited to a distance of about 1 m between the reader 8 and the tag means, and the surface with the tag means is directed in a limited direction. Without it, you cannot communicate.

  In addition, tag means for non-metallic products are inexpensive and the inner layer tags can be easily obtained and can be communicated from both sides, but the communication distance is still limited and tag means for non-metallic products. Since the used cover material is not stronger than the cover material used for the tag means for the metal product, there is a possibility that the product data may be damaged so as not to be sensed during transportation.

  The present invention has been made in consideration of the above problems, and by using a metal base sheet, it can be transmitted and received on both sides, and can be applied not only to metal products but also to non-metal products. An object is to provide a wireless identification tag device.

To achieve the above object, the present invention provides a tag device attached to a product, comprising a first surface, a first surface, a back-to-back second surface, and the first surface and the second surface. a metal base sheet having a through hole penetrating the inner tag is bonded to a first surface of the metal base sheet over the through hole, Ri Tona, as the through-hole, the cross section ten shaped The through hole is composed of a cross-shaped first groove hole and a second groove hole intersecting at right angles to each other, and the length of the second groove hole is the first groove. There are a first area and a second area which are shorter than the length of the hole and do not overlap each other at the longitudinal ends of the second groove of the through hole on the first surface of the metal base sheet. The inner tag includes a tag chip and an antenna electrically connected to the tag chip. The antenna includes a first connection portion attached to the first area, a second connection portion attached to the second area, and the first connection portion over the opening of the through hole. The wireless identification tag device is configured to include a connecting portion electrically connected to the second connecting portion and a connecting portion electrically connected to the second connecting portion .

  It is preferable that the wireless identification tag device further covers the first surface of the metal base sheet and the inner tag with a tag paper made of a non-metallic material having visible product information.

  The wireless identification tag device preferably has a barcode for displaying product data as product information on the tag paper.

  In the wireless identification tag device, the first surface of the metal base sheet has a first area and a second area that do not overlap each other around the through hole, and the inner tag includes the tag chip and the tag chip. And an antenna electrically connected to the first area, the first connection portion attached to the first area, the second connection portion attached to the second area, and above the opening of the through hole. It is assumed that the first connecting portion and the second connecting portion are electrically connected to the connecting portion.

The through-hole, the cross section has a ten-shape.

The through-hole is composed of a cross-shaped first groove hole portion and a second groove hole portion that cross each other at right angles, and the length of the second groove hole portion is shorter than the length of the first groove hole portion. The configuration.

In the wireless identification tag device, the first surface of the metal base sheet has a first area and a second area that do not overlap each other at both longitudinal ends of the second groove portion of the through hole, The inner tag includes a tag chip and an antenna electrically connected to the tag chip. The antenna includes a first connection portion attached to the first area and a second connection attached to the second area. a portion, a structure having a first connecting portion across the opening above the through hole and the second connection portion and the connecting portion are electrically connected.

  The wireless identification tag device may be connected to a tag chip and a connecting portion of an antenna.

As another example, in the wireless identification tag device, the inner tag has a scan pacer, the inner tag spacer may be configured to be affixed to the first surface of the metal base sheet via.

  As another example, in the wireless identification tag device, the first surface of the metal base sheet has a first area and a first area that do not overlap with each other at both longitudinal ends of the second groove portion of the through hole. There are two areas, and the antenna has a first connection portion provided corresponding to the upper side of the first area, a second connection portion provided corresponding to the upper side of the second area, It is good also as a structure which has a connection part electrically connected to the 1st connection part and the 2nd connection part corresponding to the opening upper direction of a through-hole.

  According to the present invention, it is possible to extend the identification distance with the reader, and it can be used not only for metal products but also for non-metal products. Also, since the reader can sense from any side, it is convenient to use.

  Embodiments of the present invention will be described below with reference to the drawings.

  1, 2 and 3 are an exploded perspective view, a front view, and a side sectional view showing an embodiment of the wireless identification tag device of the present invention.

  The wireless identification tag device of this example shown is attached to a product (not shown), and includes a first surface 101, a first surface 101, a second surface 102 back to back, and the first surface. 101 and a metal base sheet 1 having a through hole 11 penetrating the second surface 102, and an inner tag 2 bonded to the first surface of the metal base sheet 1 across the through hole 11. For example, the first surface 101 of the metal base sheet 1 and the inner tag 2 are covered with tag paper 4 made of a non-metallic material having visible product information 41 indicated by a bar code or a lot number.

  In this example, the through-hole 11 includes a cross-shaped first groove portion 111 that intersects at right angles to each other and a second groove portion 112 that is not longer than the length of the first groove portion 111. However, it is also possible to form a single character only by the second groove hole 112.

  On the first surface 101 of the metal base sheet 1, there are a first area 12 and a second area 13 that do not overlap each other around the through-holes 11, particularly at both ends of the second slot 112. is there.

  The inner tag 2 includes a tag chip 21 and an antenna 22 electrically connected to the tag chip 21.

  In this example, the tag chip 21 and the antenna 22 are attached to the first surface 101 of the metal base sheet 1 via the spacer 23. However, as shown in FIG. It may be attached directly to the first surface 101 without using it.

  The antenna 22 includes a first connection portion 221 attached to the first area 12 corresponding to the first area 12 and a second connection portion attached to the second area 13 corresponding to the second area 13. Two connecting portions 222 and a connecting portion 223 that is electrically connected to the first connecting portion 221 and the second connecting portion 222 over the opening of the through hole 11 and connected to the tag chip 21. Have.

  Further, the inner tag 2 is attached to the first surface 101 of the metal base sheet 1 via the spacer 23.

  In this example, as the inner tag 2, an inner tag in a conventional wireless identification tag device for non-metallic products can be used, so that it can be easily obtained and its price can be kept low. Moreover, although it can use as a frequency which sends product information with 2.45 GHz, it is not restricted to this.

  The antenna 22 is a dipole antenna, but is not limited thereto. The connecting portion 223 of the antenna 22 is formed in a zigzag shape in this example, but it is only necessary to match the impedance of the antenna 22 and the impedance of the tag chip 21 and is not limited to this shape.

  Further, as shown in the figure, the tag chip 21 is electrically connected to the center of the connecting portion 223 of the antenna 22 corresponding to the first slot 111.

  When the inner tag 2 is attached on the metal base sheet 1, the impedance characteristics of the antenna 22 may change depending on the shape of the through hole 11, so that the antenna 22 and the tag chip can be detected well in order to sense a signal from the inner tag 2. The through hole 11 having a shape that matches the impedance of 21 may be formed, and may be formed in, for example, a cross shape or a single character shape as illustrated.

  Further, in order to match the impedance of the antenna 22 and the impedance of the tag chip 21, it can be realized by adjusting the length and width of the second groove portion 112 of the through hole 11.

  Moreover, in this example, when the wireless identification tag device of the present invention is attached to a metal product, the inner tag 2 is protected by the hard metal base sheet 1 and the tag paper 4, and therefore, it is difficult to break.

  In this example, the tag paper 4 is attached to the metal base sheet 1 so as to cover the inner tag 2, but may be attached to the metal base sheet 1 without covering the inner tag 2. In addition, the tag paper 4 is stuck on the metal base sheet 1 through an adhesive layer, for example.

  According to the wireless identification tag device using the metal base sheet 1 of the present invention, a reader (not shown) can be directed to any surface to receive a signal of a corresponding product, and the reader is directed to a specific surface. Compared with the conventional apparatus which must be used, it is convenient to use and can increase the sensing distance. For example, when transmitting at a frequency of 2.45 GHz above the product, the identifiable distance can be increased from 1 m to 1.68 m.

  Needless to say, according to the wireless identification tag device using the metal base sheet of the present invention, it can be attached to a non-metallic product.

  The present invention is not limited to the above embodiment, and various modifications can be made.

  According to the wireless identification tag device using the metal base sheet of the present invention, the sensing distance of the reader can be extended and can be used not only for metal products but also for non-metal products. Also, since the reader can sense from any side, it is convenient to use.

1 is an exploded perspective view schematically showing a configuration example of a wireless identification tag device according to the present invention. It is a front view of the tag apparatus of FIG. It is a side longitudinal cross-sectional view of the tag apparatus of FIG. It is a disassembled perspective view which shows the other structural example of the radio | wireless identification tag apparatus of this invention schematically. It is a figure which shows schematically the structural example of the conventional radio | wireless identification tag apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Metal base sheet 101 ... 1st surface 102 ... 2nd surface 11 ... Through-hole 111 ... 1st groove hole part 112 ... 2nd groove hole part 12 ... 1st area 13 ... 2nd area 2 ... inner tag 21 ... tag chip 22 ... antenna 221 ... first connection part 222 ... second connection part 223 ... connecting part 23 ... spacer 4 ... tag paper 41 ... product information

Claims (5)

A tag device attached to a product,
A metal base sheet having a first surface, a second surface back-to-back with the first surface, and a through-hole penetrating the first surface and the second surface;
An inner tag bonded to the first surface of the metal base sheet across the through hole;
Tona is,
As the through-hole, the cross section has a cross shape,
The through hole includes a cross-shaped first groove hole and a second groove hole that intersect at right angles to each other, and the length of the second groove hole is the length of the first groove hole. Shorter than length,
The first surface of the metal base sheet has a first area and a second area that do not overlap each other independently at both longitudinal ends of the second groove portion of the through hole,
The inner tag includes a tag chip and an antenna electrically connected to the tag chip,
The antenna includes a first connection portion attached to the first area, a second connection portion attached to the second area, and the first connection over the opening of the through hole. A wireless identification tag device comprising: a connecting portion electrically connected to the portion and the second connecting portion .   2. The wireless identification tag device according to claim 1, wherein the first surface of the metal base sheet and the inner tag are covered with a tag paper made of a nonmetallic material having visible product information. 3. The wireless identification tag device according to claim 2, wherein the product information on the tag paper has a barcode for displaying product data . The wireless identification tag device according to claim 1 , wherein the tag chip and a connecting portion of the antenna are connected . The inner tag further comprises a scan pacer,
The wireless identification tag device according to claim 1, wherein the inner tag is attached to the first surface of the metal base sheet through the spacer .

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