JP4310763B2 - RFID data carrier installation jig - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an RFID data carrier installation jig for installing an RFID data carrier in a concrete construction material, a structure or other solidified solid body or resin solidified body .
[0002]
[Prior art]
In order to guarantee the quality of concrete construction materials or structures used for civil engineering construction work, it is necessary to record data such as manufacturer, model number, date of manufacture, and manufacturing equipment. In the past, this type of data was written on labels and nameplates and pasted on construction materials and structures.
[0003]
[Problems to be solved by the invention]
However, in the conventional method, data is written on labels and nameplates and pasted on construction materials and structures. In the case of construction materials, mainly in the distribution process or construction site, and in the case of structures, mainly at the construction site. There was a problem that labels and nameplates were damaged or dropped easily, and data was not understood. In addition, it takes time to write the data on the label and nameplate, and reading the data usually has to be done manually, and there is also a problem that it is impossible to eliminate data reading errors.
[0004]
Therefore, the present inventor has solved the above-mentioned problems, and the construction in which the described data can be written and read accurately and easily without the possibility that the described data will be damaged or dropped in the distribution process or construction site. We proposed a method for reading and writing materials and data to be recorded on this construction material.
[0005]
The construction material and the like according to the inventor's proposal adopts an RFID (Radio frequency Identification) system. The RFID system uses RFID data by non-contact wireless communication between an RFID device and an RFID data carrier. In this system configuration, data recorded on a carrier is read on the RFID device side, or data is sent from the RFID device and written on the RFID data carrier.
[0006]
By the way, when producing or constructing concrete construction materials, structures, and other concrete solid bodies to which the RFID system as described above is applied, in order to install the RFID data carrier with high productivity inside the concrete solid bodies It is preferable to adopt a method in which the RFID data carrier is set in advance in a fixed position in the molding mold and the concrete is poured into the mold after completion of the setting when the concrete solidified body is molded. .
[0007]
However, if the installation depth of the RFID data carrier is too shallow, the RFID data carrier may be removed from the installation location when damage such as slight cracking occurs on the surface of the solidified concrete. On the other hand, if the RFID data carrier is installed too deep, the radio wave is not attenuated by the concrete layer, but the communication reliability is lowered at a distance exceeding the capability of the RFID data carrier. Also, if the orientation of the RFID data carrier embedded in the concrete solidified body is tilted or not as designed, the direction of the built-in antenna of the RFID data carrier will deviate from the normal communication direction. It becomes low. Therefore, it is a practically important issue to install the RFID data carrier in a posture as designed and at as uniform and appropriate depth as possible.
[0008]
The present invention has been made in view of the above circumstances, and an object, RFID data carrier installed jig for installing the RFID data carrier within the solidified body of concrete or tree oils and maintaining a predetermined depth and orientation It is in providing tools.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is characterized in that the RFID data carrier is installed in a core material built in a lattice shape inside a solid or concrete solid body made of a material that transmits electromagnetic waves. An RFID data carrier installation jig for embedding the RFID data carrier in a solidified body , which is provided on the jig main body and the jig main body, and can be elastically deformed on the outer periphery of the attachment portion of the RFID data carrier A carrier holding portion that is held by being pressed by a plurality of holding claws, or fitted into a recess capable of accommodating the RFID data carrier, and two vertical and horizontal intersecting at the intersection of the lattice of the core material and two engaging members is a structure that fits over the core material, and having a, the two mating members each U Jo is formed on, by the elastic restoring force when the push the U-shaped opening so as to grip embrace each of the vertical and horizontal two core material, characterized in that fitted into the core material.
[0010]
The invention according to claim 2 is characterized in that the jig body is a flat plate-like member formed in a U-shape, and the carrier holding portion is provided on one surface of the jig body. The fitting member is provided on the other surface of the jig body, and is provided in each of the vicinity of the starting end portion and the terminal end portion of the character .
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of an RFID data carrier installation jig (hereinafter also referred to as “carrier installation jig”) according to the present invention will be described in detail with reference to the drawings.
[0015]
The carrier installation jig J shown in FIG. 1 is composed of a jig body 1 that is bent into a “<” shape when viewed from the front or back as shown in FIG. 1 near the center of the front, that is, around the bent portion 1a of the "<" character, is configured as the carrier holding portion 2, and the fitting member 3 is provided respectively near the start end portion 1b and the end portion 1c of the "<" shape. 4 are provided integrally.
[0016]
The carrier holding unit 2 is configured so that the RFID data carrier 10 can be attached in a fixed posture, and the attachment structure includes three holding claws 5 that can be elastically deformed on the outer periphery of the attachment portion of the RFID data carrier 10, 5 and 5 are erected, and the RFID data carrier 10 is pressed against the jig body 2 side by an elastic restoring force that attempts to return the three holding claws 5, 5, 5 when they are bent outward. A fixed structure is adopted.
[0017]
That is, the carrier holding unit 2 places the RFID data carrier 10 in a predetermined posture on the upper surface, and presses and holds the RFID data carrier 10 with the elastic return force of the holding claws 5, 5, and 5 from above. can do.
[0018]
As described above, the fitting members 3, 4 provided in the vicinity of the starting end 1 b and the terminating end 1 c of the “<” of the jig body 1 are both formed in a U-shape, and the U-shaped opening 3 a thereof. 4 a is arranged so as to face the outside of the jig body 1.
[0019]
Such U-shaped fitting members 3, 4 can be fitted with core members 20 a, 20 b such as reinforcing bars incorporated into the solidified concrete body 20. When the U-shaped fitting members 3 and 4 are fitted to the core members 20a and 20b, the U-shaped inner portions of the U-shaped openings 3a and 4a are deepened while the U-shaped openings 3a and 4a are slightly expanded. The core materials 20a and 20b are pushed in toward 3b and 4b. At this time, the fitting members 3 and 4 have an elastic restoring force when the U-shaped openings 3a and 4a are expanded. Therefore, the U-shaped fitting members 3 and 4 are gripped by the elastic restoring force so as to embrace the core members 20a and 20b between the opposing surfaces on the U-shaped inner side.
[0020]
In FIG. 1 and FIG. 2, the core materials 20a and 20b such as iron cores incorporated in the solidified concrete body 20 are assembled in a lattice shape, but the core materials 20a and 20b are assembled in a lattice shape in this way. The fitting structure of the two fitting members 3 and 4 and the core members 20a and 20b in the carrier installation jig J is related to the fact that the jig main body 1 has a "<" shape. In this structure, the two core members 20a and 20b intersecting each other at the intersection of the lattices are fitted. As a result, the present carrier installation jig J and the RFID data carrier 10 attached thereto are attached across the two intersecting core members 20a and 20b in the vicinity of the intersection of the core member 20 assembled in a lattice shape. It will be.
[0021]
The U-shaped openings 3a and 3b of the fitting members 3 and 4 are provided with stopper claws 6 and 6, and the stopper claws 6 and 6 are bent toward the inside of the U-shaped openings 3a and 3b. And it has a function as a stopper which prevents the core materials 20a and 20b from easily coming out of the U-shaped openings 3a and 3b.
[0022]
As shown in FIG. 3, the RFID data carrier 10 is an RFID chip 11 having a substrate on which an IC or the like is mounted, and a loop coil antenna 12 connected to the RFID chip 11 packaged with a resin 13. The axial direction A of the loop coil antenna 12 is the antenna directing direction, and sensitivity to communication electromagnetic waves is the best in this direction.
[0023]
Further, the RFID data carrier 10 can be installed inside the concrete solidified body 20 using the carrier installation jig J configured as described above, and the installation is performed according to the steps of the flowchart shown in FIG.
[0024]
That is, as shown in the figure, when the RFID data carrier 10 is installed in the concrete solidified body 20, first, as shown in FIG. 1 and FIG. It attaches to the carrier holding part 2 of the installation jig J (step 100).
[0025]
Then, core materials 20a and 20b such as reinforcing bars are incorporated and disposed in a molding form (not shown) of the solidified concrete body 20, and the fitting members 3 and 4 of the carrier installation jig J are placed on the core materials 20a and 20b. Are fitted and mounted (see FIGS. 1 and 2). When fitting and mounting in this manner, the embedding depth and posture (orientation) of the RFID data carrier 10 from the surface of the solidified solid body 20 are determined in the mounted state, and the RFID data carrier 10 is built-in. The loop coil antenna 12 (see FIG. 3) can wirelessly transmit / receive with the outside of the concrete solidified body 20 (step 102).
[0026]
Thereafter, fluid concrete (not shown) is poured into the molding form, and the concrete is solidified while the carrier installation jig J and the RFID data carrier 10 attached thereto are confined with the concrete. . At the time of pouring the fluid concrete, a force due to the concrete flow is applied to the carrier installation jig J. In the case of this embodiment, the carrier installation jig J includes two core members 20a, Since the core members 20a and 20b are prevented from being pulled out by the stopper claws 6 and 6, the carrier installation jig J has a large resistance to the force caused by the concrete flow, and the concrete solidifies. When the body 20 is molded, the carrier installation jig J and the RFID data carrier 10 attached thereto are not easily moved or tilted (step 104).
[0027]
Subsequently, when the molding form is removed after the concrete is solidified, the concrete solidified body 20 with built-in RFID data carrier 10 is obtained (step 106).
[0028]
As described above, the carrier installation jig J of the present embodiment designs the depth from the outer peripheral surface of the concrete solidified body 20 to the RFID data carrier 2 when the concrete is poured into the molding form of the concrete solidified body 20. The RFID data carrier 2 is used as means for embedding the RFID data carrier 2 in the concrete solidified body 20 in accordance with the value.
[0029]
When the RFID data carrier 10 is attached to the carrier setting jig J of this embodiment and embedded in the concrete solidified body 20, the axial direction A (see FIG. 3) of the loop coil antenna 12 of the RFID data carrier 10 is solidified. It is preferable to arrange so as to face the outer peripheral surface of the body 20. When installed in this manner, electromagnetic waves can be exchanged with high sensitivity with the RFID device 14 (see FIG. 5) arranged outside the concrete solidified body 20.
[0030]
In order to write data to or read data from the RFID data carrier 10, an RFID device 14 is used as shown in FIG. The RFID device 14 includes an RFID controller 15, a loop coil antenna 16, and a computer 17, and is configured to communicate data and the like with the RFID data carrier 10 by an electromagnetic induction method.
[0031]
The RFID controller 15 has a function of outputting a command addressed to the RFID data carrier 10, for example, a data write command or a data read command to the loop coil antenna 16 according to an instruction from the computer 17, and an RFID data carrier received by the loop coil antenna 16. 10 has a function of taking in data from 10 and sending it to the computer 17 side.
[0032]
Wireless communication is performed between the loop coil antenna 16 of the RFID device 14 and the loop coil antenna 12 of the RFID data carrier 10. That is, the power supplied to the RFID data carrier 10, data for writing, and other commands are sent from the RFID device 14 side, and the read data and other responses are sent from the RFID data carrier 10 side to the other side. Sent. The frequency of the communication electromagnetic wave at this time can be appropriately selected according to the depth from the surface of the solidified solid body 20 to the RFID data carrier 10 from long wave to short wave frequencies suitable for the electromagnetic induction method.
[0033]
When the concrete solidified body 20 is a construction material, the RFID data carrier 10 embedded in the construction material is contacted by the RFID device 14 in a non-contact manner before the construction material is shipped. Data is written. At a construction site where such construction materials are carried in, the same RFID device 14 is used, and the loop coil antenna 16 of the RFID device 14 is placed at the location of the RFID data carrier 10 in the carried construction materials. The data can be communicated with the loop coil antenna 12 of the RFID data carrier 10 and the data written on the RFID data carrier 10 can be read to confirm that the construction material is as specified. Further, as necessary, additional data can be written to the RFID data carrier 10, a part of the data can be rewritten, and the data can be erased.
[0034]
As described above, in the carrier installation jig J of the present embodiment, the fitting member of the jig body 1 with the RFID data carrier 10 attached to the carrier holding portion 2 of the jig body 1 in a certain posture. 3 and 4 are configured to fit into the built-in core materials 20a and 20b inside the solidified concrete body 20. For this reason, it is possible to install the RFID data carrier 10 in the concrete solidified body 20 while maintaining the designed depth and posture without modifying the molding form of the concrete solidified body 20. 10 can improve the reliability of communication with the network 10 and reduce the cost of remodeling the formwork.
[0035]
Further, according to the carrier installation jig J of the present embodiment, the core 20a and 20b are embedded in the concrete solidified body 20 so that there is no fixed portion between the molding mold and the jig, and the mold It is possible to easily take out the solidified body from the inside.
[0036]
In the above embodiment, the configuration using the three holding claws 5, 5, 5 that can be elastically deformed is used as the means for attaching the RFID data carrier 10 to the carrier holding unit 2. There is no limitation to the claws 5, 5, and 5. For example, although not shown, a recess capable of accommodating the RFID data carrier 10 is provided in the RFID data carrier mounting portion on the carrier holding unit 2, and the recess is provided in this recess. The RFID data carrier 10 may be fitted.
[0037]
Examples of the concrete solidified body 20 that is the installation target of the RFID data carrier 10 include: (1) Building materials that are traded in a movable manner before settlement on land, such as fume pipes, utility poles, concrete wall panels, concrete (2) Structures constructed on the construction site as real estate, such as irrigation canals, embankments, tunnels, bridges, dams, elevated roads, elevated tracks, buildings, fume pipes and electric telephone lines The connection box etc. which are provided in the connection part of these, etc. are mentioned, These various concrete solidified bodies 20 can become the installation object of the RFID data carrier by the carrier installation jig J of this invention.
[0038]
In the above embodiment, the example in which the RFID data carrier 10 is installed inside the concrete solidified body 20 has been described. However, the RFID data carrier installation jig and the installation method according to the present invention are solidified bodies other than the concrete solidified body 20, for example, When there is a resin solidified body having a structure in which the core materials 20a and 20b (see FIG. 1) are housed, the present invention can also be applied to the case where the RFID data carrier 10 is installed inside the resin solidified body.
[0039]
As a method of wireless communication between the RFID device 14 and the RFID data carrier 10, in addition to the electromagnetic induction method described above, an electromagnetic coupling method, an optical communication method, and the like are possible. When an RFID data carrier is embedded, an electromagnetic induction method through which electromagnetic waves pass is suitable.
[0040]
The directivity directions of both the loop coil antennas 12 and 16 of the RFID data carrier 10 and the RFID device 14 are preferably matched to each other, but there is an allowable range depending on the directivity of the frequency to be used. Therefore, the installation direction of the loop coil antenna 12 of the RFID data carrier 10 may be within the allowable range.
[0041]
【The invention's effect】
In the RFID data carrier installation jig according to the present invention, as described above, the fitting member is fitted to the core material incorporated in the solidified body while the RFID data carrier is attached to the carrier holding portion in a fixed posture. It is comprised so that it may do. For this reason, it is possible to install the RFID data carrier while maintaining the designed depth and posture within the solidified body without modifying the mold for molding the solidified body. Improve communication reliability and reduce mold remodeling costs.
[0042]
In addition, since the RFID data carrier installation jig of the present invention is embedded in the solidified body integrally with the core material, there is no fixed part between the mold for molding and this jig, and the solidified body from the mold is not fixed. There are also effects such as easy removal.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a state in which an RFID data carrier is installed inside a concrete solidified body using a carrier installation jig according to the present invention.
FIG. 2 is a view taken in the direction of arrow A in FIG.
FIG. 3 is an explanatory diagram of an RFID data carrier.
FIG. 4 is an explanatory diagram of an RFID data carrier installation method according to the present invention.
FIG. 5 is a block diagram of an RFID device that performs wireless communication with an RFID data carrier.
[Explanation of symbols]
J RFID data carrier installation jig 1 Jig body 1a “B” -shaped bent part 1b of jig body “B” start end 1c of jig body “B” end part 2 of jig body 2 Carrier holding Portions 3 and 4 Fitting members 3a and 4a U-shaped openings 3b and 4b of the fitting member U-shaped inner back portion 5 of the fitting member 5 Holding claw 6 Stopper claw 10 RFID data carrier 11 RFID chip 12 RFID data carrier loop Coil antenna 13 resin 14 RFID device 15 RFID controller 16 loop coil antenna 17 of RFID device 17 computer

Claims (2)

In a grid incorporated in the core material inside the solidified body of the concrete or resin made of a material through which electromagnetic waves, by placing the RFID data carrier, RFID data carrier for embedding the RFID data carrier within the solidified body An installation jig,
A jig body;
It is provided on the jig main body, and is held by pressing with a plurality of elastically deformable holding claws on the outer periphery of the RFID data carrier mounting portion, or is fitted and held in a recess capable of accommodating the RFID data carrier. The carrier holding part,
And having two fitting members that are structured to fit across two core materials that are crossed at the intersection of the lattice of the core material ,
Each of the two fitting members is formed in a U-shape, and the core material is held by holding and gripping each of the two core materials in the vertical and horizontal directions by an elastic restoring force when the U-shaped opening is expanded. Mating
RFID data carrier installation jig characterized by . The jig body is a flat plate-like member formed in a U-shape,
The carrier holding portion is provided on one surface of the jig body,
The two fitting members are provided on the other surface of the jig body, and are provided in the vicinity of the start and end portions of the character.
The RFID data carrier installation jig according to claim 1, wherein:

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