An RFID tag device, system and method of installation

Abstract

The application provides an RFID label device, system and mounting method, relates to the technical field of building engineering, and provides the RFID label device which comprises a shell, a protective shell and an RFID label, has a retarding substance and the protective shell in the shell, the RFID label is fixed in the protective shell, and the density of the protective shell is less than the density of the retarding substance, so that the orientation of the RFID label in the retarding substance is kept unchanged by relying on the buoyancy when the retarding substance is in a liquid state. The RFID label device provided by the application utilizes the buoyancy of the retarding substance to make the orientation of the RFID label not be influenced by factors such as the mounting angle of the shell, has lower requirements on the construction experience of workers, and can make the orientation of the RFID label unchanged under the action of the buoyancy before the retarding substance solidifies, so that the position of the RFID label relative to the reinforcement cage is more controllable, and the RFID label has higher reading efficiency and reliability.

Description

Technical Field

[0001] This invention relates to the field of building engineering technology, and in particular to an RFID tag device, system and installation method. Background Technology

[0002] To meet the demands of modern rapid and green construction, engineering components are increasingly being prefabricated and manufactured as products. Prefabricated construction can effectively improve construction efficiency. To facilitate quality control and information recording throughout the entire process, it is necessary to track and manage prefabricated components throughout their entire lifecycle. In the application of digital tracking for prefabricated components, according to the requirements of GB / T51231-2016 "Technical Standard for Prefabricated Concrete Buildings," the surface of prefabricated components needs to be pre-embedded with identification cards containing radio frequency chips (RFID) for the whole-process quality control and traceability of prefabricated buildings. The chips should store all relevant information regarding the production process and quality control.

[0003] Currently, RFID tags need to be tied to the steel reinforcement framework of structural components during installation. This places high demands on the placement and angle of the RFID tags, as deviations in the installation angle can affect subsequent reading efficiency. Furthermore, on-site workers may fail to read the RFID chips on prefabricated components due to inadequate training or improper operation.

[0004] Therefore, how to provide an RFID tag device, system, and installation method that can improve reading efficiency and reliability is one of the technical problems that those skilled in the art need to solve. Summary of the Invention

[0005] The purpose of this invention is to provide an RFID tag device with high reading efficiency and reliability. Additionally, it provides an RFID tag system including the aforementioned RFID tag device, and a method for installing RFID tags in the aforementioned RFID tag device or RFID tag system.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] In a first aspect, the present invention provides an RFID tag device, comprising a housing, a protective shell, and an RFID tag. The housing contains a retarding substance and the protective shell. The RFID tag is fixedly mounted inside the protective shell. The density of the protective shell is less than the density of the retarding substance, so that the orientation of the RFID tag inside the retarding substance remains unchanged by buoyancy when the retarding substance is in a liquid state.

[0008] Furthermore, the outer casing includes an upper outer casing and a lower outer casing, which are fastened together to form a first mounting cavity for accommodating the retarding substance and the protective shell.

[0009] Furthermore, the outer wall of the outer shell is provided with two oppositely arranged hooks for the rope to pass through.

[0010] Furthermore, the retarding substance is a single-component adhesive.

[0011] Furthermore, the protective shell is disc-shaped.

[0012] Furthermore, when the protective shell is stationary inside the outer shell, the orientation of the RFID tag is parallel to the direction of gravity of the protective shell.

[0013] Furthermore, the RFID tag device also includes a heating device for heating the housing, the housing being placed inside the heating device.

[0014] Furthermore, the heating device includes a carrier box having an opening for the housing to enter and exit, and a gap between the carrier box and the housing for holding the mixed material.

[0015] Secondly, the present invention also provides an RFID tag system, including a reading device, a cloud platform, and the RFID tag device described in the above solution. The reading device includes a reading unit and a writing terminal. The reading unit is used to read the information of the RFID tag, and the writing terminal is used to write information in the prefabrication process. The reading device is connected to the cloud platform to upload the read and written information to the cloud platform.

[0016] Thirdly, the present invention also provides an RFID tag installation method for the RFID tag device described in the above-described scheme, or for the RFID tag system described in the above-described scheme, comprising:

[0017] The heating device and the outer casing inside the heating device are fixed to the precast steel reinforcement;

[0018] Grout concrete into the precast steel reinforcement;

[0019] Add the heating reagent into the heating device;

[0020] Vibrate the concrete slurry; after vibration, the retarding substance solidifies and sets.

[0021] The RFID tag is read using a reading device, and the information read and written by the reading device are uploaded to the cloud platform.

[0022] The RFID tag device, system, and installation method provided by this invention can produce the following beneficial effects:

[0023] When the RFID tag device is installed onto the reinforcing steel frame, because the density of the protective shell is less than the density of the retarding material, the protective shell can float on the retarding material in a liquid state due to buoyancy. Regardless of the installation angle of the shell, the RFID tag inside the shell always faces the same direction. After the RFID tag device is stably installed, the retarding material inside the shell is allowed to solidify. The retarding material defines the position of the protective shell relative to the shell, thus fixing the position of the RFID tag.

[0024] Compared with the prior art, the RFID tag device provided by the first aspect of the present invention utilizes the buoyancy of the retarding material to ensure that the orientation of the RFID tag is not affected by factors such as the installation angle of the outer shell. It requires less construction experience from workers. Before the retarding material solidifies, the protective shell can float on the retarding material under the action of buoyancy, thereby keeping the orientation of the RFID tag unchanged. The position of the RFID tag relative to the steel frame is more controllable, improving reading efficiency and reliability.

[0025] Compared to existing technologies, the RFID tag system provided in the second aspect of this invention includes a reading device, a cloud platform, and the aforementioned RFID tag device. The reading unit in the reading device can read information from the RFID tag, and the writing terminal in the reading device can write information from the prefabrication process. Simultaneously, the reading device can upload the read and written information to the cloud platform. The RFID tag system provided in the second aspect of this invention has advantages such as high reading efficiency and strong reading reliability.

[0026] Compared with the prior art, the RFID tag installation method provided by the third aspect of the present invention is simple to operate, the orientation of the RFID tag will not change with the rotation of the shell, the installation angle requirement of the shell is low, it is easy to ensure that the orientation of the RFID tag meets the requirements after the retarding material solidifies, and improves the reading success rate of the reading device. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a three-dimensional structural diagram of an RFID tag device provided in an embodiment of the present invention;

[0029] Figure 2 This is a three-dimensional structural diagram of a portion of an RFID tag device provided in an embodiment of the present invention;

[0030] Figure 3 This is a three-dimensional structural diagram of another RFID tag device provided in an embodiment of the present invention;

[0031] Figure 4 This is a structural schematic diagram of an RFID tag device relative to the position of a precast concrete component during installation, provided by an embodiment of the present invention.

[0032] Figure 5 This is a schematic diagram of the structure of an RFID tag device in a precast concrete component of a tunnel, as provided in an embodiment of the present invention.

[0033] Icons: 1 - Outer shell; 11 - Upper outer shell; 12 - Lower outer shell; 13 - Hanging ear; 2 - Protective shell; 21 - Lower shell; 3 - RFID tag; 4 - Heating device; 41 - Carrier box; 411 - Opening; 5 - Precast concrete component. Detailed Implementation

[0034] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0038] A first aspect of the present invention provides an RFID tag device, such as... Figure 1 and Figure 2 As shown, it includes an outer shell 1, a protective shell 2, and an RFID tag 3. The outer shell 1 contains a retarding substance and the protective shell 2. The RFID tag 3 is fixed inside the protective shell 2. The density of the protective shell 2 is less than the density of the retarding substance, so that the orientation of the RFID tag 3 inside it remains unchanged by buoyancy when the retarding substance is in a liquid state.

[0039] In the RFID tag device provided in the above embodiments, the purpose of designing the retarding material is to enable the protective shell 2 to float inside the outer shell 1 in a liquid state. Under the buoyancy of the retarding material, the orientation of the RFID tag 3 inside the protective shell 2 does not change, thereby reducing the influence of factors such as installation angle on the orientation of the RFID tag 3 and making it easier to control the orientation of the RFID tag 3 during the installation of the RFID tag device.

[0040] The structure of the outer casing 1 is described in detail below:

[0041] The outer shell 1 can be spherical, cubic or other shapes, that is, any shape that can accommodate the retarding substance and the protective shell 2 and allow the protective shell 2 to adjust its posture within it.

[0042] In at least one embodiment, such as Figure 1 As shown, the outer shell 1 is spherical, and its interior forms a first mounting cavity for accommodating the retarding substance and the protective shell 2.

[0043] In some embodiments, to facilitate the installation of the protective shell 2, the outer shell 1 includes an upper outer shell 11 and a lower outer shell 12, which are fastened together to form a first mounting cavity for accommodating the retarding substance and the protective shell 2.

[0044] by Figure 1 Taking the example for specific explanation, both the upper outer shell 11 and the lower outer shell 12 are hemispherical in shape, and after the upper outer shell 11 and the lower outer shell 12 are fastened together, they form a spherical first mounting cavity.

[0045] The upper outer shell 11 and the lower outer shell 12 can be connected in various ways, such as threaded connection, adhesive connection, etc.

[0046] In some embodiments, such as Figure 1 As shown, the outer wall of the outer shell 1 is provided with two oppositely arranged hanging ears 13, which are used for the rope to pass through, so as to facilitate fixing the outer shell 1 to the steel bar.

[0047] The ear loop 13 can be installed on either the upper outer casing 11 or the lower outer casing 12. Figure 1For example, the lugs 13 are installed on the lower outer shell 12, and a protruding ring protrudes outward from the top of the lower outer shell 12. The two lugs 13 are connected to the protruding ring.

[0048] When the top of the outer casing 12 protrudes outward with a convex ring, correspondingly, as... Figure 1 As shown, the bottom end of the upper outer shell 11 can also protrude outward with a convex ring, and the upper outer shell 11 and the lower outer shell 12 can be connected through the end faces of the two convex rings.

[0049] The following is a detailed explanation of retarding substances:

[0050] Retardering substances are initially liquids that solidify into solids under certain conditions and over a certain period of time. Retardering substances can be single-component adhesives, such as polyurethane adhesives and epoxy resin adhesives.

[0051] The volume of the slowing material inside the outer shell 1 needs to be sufficient to keep the protective shell 2 floating, so that the orientation of the RFID tag 3 inside the protective shell 2 remains unchanged when the installation angle of the outer shell 1 changes.

[0052] The structure of protective shell 2 is described in detail below:

[0053] The protective shell 2 can be spherical, cuboid, disc-shaped, rugby ball-shaped, or other shapes.

[0054] When the protective shell 2 is spherical, the center of gravity of the combined structure of the protective shell 2 and the RFID tag 3 is preferably not to coincide with the center of the sphere, so that the orientation of the RFID tag 3 does not change with the rotation of the shell 1 under the action of gravity.

[0055] In at least one embodiment, the protective shell 2 is preferably disc-shaped (which can be approximated as a cylinder with a large radial dimension and a small axial dimension), and the protective shell 2 can float more stably on the retarding material.

[0056] Based on the above embodiments, along the height direction (i.e., the axial direction) of the protective shell 2, the RFID tag 3 is preferably installed in the middle of the protective shell 2, and the center of gravity of the combined structure of the protective shell 2 and the RFID tag 3 is preferably on the axis of the protective shell 2.

[0057] by Figure 1 and Figure 2 Taking this example, the protective shell 2 includes an upper shell and a lower shell 21. The upper shell and the lower shell 21 can be arranged symmetrically. When they are fastened together, they form an annular cavity for accommodating the coil in the RFID tag 3. The annular cavity is formed at the edge of the upper shell and the lower shell 21.

[0058] The upper housing and the lower housing 21 can be connected in various ways, such as threaded connection, adhesive connection, etc.

[0059] The protective shell 2 can be made of lightweight materials such as plastic. The density of the protective shell 2 can be uniform or non-uniform. For example, the protective shell 2 can include an upper part and a lower part, with the density of the upper part being less than that of the lower part. This ensures that the lower part of the protective shell 2 remains below the upper part in the retarding material, guaranteeing that the orientation of the RFID tag 3 does not change.

[0060] The following is a detailed explanation of RFID tag 3:

[0061] Based on the above embodiments, the RFID tag 3 can use the existing RFID tag structure, that is, the existing RFID tag 3 can be directly fixed in the protective shell 2, and the connection method can be adhesive bonding.

[0062] In some embodiments, when the protective case 2 is stationary inside the outer casing 1, the orientation of the RFID tag 3 is parallel to the direction of gravity of the protective case 2.

[0063] It is understood that the direction of the aforementioned "orientation" is perpendicular to the surface of the RFID tag 3 that faces the reading device, that is, when the reading device reads the information of the RFID tag 3, the RFID tag 3 is facing the reading device.

[0064] After the outer shell 1 is installed on the precast steel reinforcement, the liquid surface of the retarding substance inside the outer shell 1 gradually stabilizes, and the protective shell 2 remains stable relative to the liquid surface of the retarding substance. At this time, since the orientation of the RFID tag 3 is parallel to the direction of gravity of the protective shell 2, the orientation of the RFID tag 3 is perpendicular to the liquid surface of the retarding substance (i.e., the horizontal plane). Even if the installation angle of the outer shell 1 is deviated, the orientation of the RFID tag 3 can always be perpendicular to the horizontal plane, which is beneficial for workers to control the orientation of the RFID tag 3.

[0065] The following is a detailed description of the structure of another RFID tag device:

[0066] In some embodiments, such as Figure 3 As shown, to accelerate the solidification of the retarding material, the RFID tag device may further include a heating device 4 for heating the outer casing 1, with the outer casing 1 placed inside the heating device 4. The heating device 4 can heat the retarding material inside the outer casing 1, accelerating its solidification process.

[0067] Specifically, such as Figure 3 As shown, the heating device 4 includes a carrier box 41, which has an opening 411 for the housing 1 to enter and exit, and a gap between the carrier box 41 and the housing 1 for holding the mixed material.

[0068] The heating device 4 described above can have its own heating function, such as heating elements or heating tubes, or it can be used to hold materials with heating function to heat the retardant material inside the outer shell 1.

[0069] In at least one embodiment, when preparing the precast concrete component 5, a mixture of concrete, water and other materials can enter the gap between the bearing box 41 and the outer shell 1. After adding quicklime into the bearing box 41, the heat released will heat the retarding material inside the outer shell 1.

[0070] The quicklime mentioned above can also be added to the carrier box 41 before adding the mixed materials.

[0071] Specifically, such as Figure 3 As shown, the carrier box 41 can be a hollow, lidless cube structure.

[0072] A second aspect of the present invention provides an RFID tag system. The RFID tag system provided by the second aspect of the present invention includes a reading device, a cloud platform, and the aforementioned RFID tag device. The reading device includes a reading unit and a writing terminal. The reading unit is used to read information from the RFID tag 3, and the writing terminal is used to write information in the prefabrication process. The reading device is connected to the cloud platform to upload the read and written information to the cloud platform.

[0073] The aforementioned reading device includes a reading unit and a writing terminal. The reading device can read information from the RFID tag 3 and simultaneously write information from the prefabrication process. This information may include text, images, audio, video, etc. The information read and written by the reading device can be uploaded to a cloud platform. The RFID tag system provided by the second aspect of this invention has advantages such as high reading efficiency and strong reading reliability.

[0074] It should be noted that the aforementioned reading device can be an existing device, and the cloud platform can also be an existing cloud platform that has already been built.

[0075] A third aspect of the present invention provides an RFID tag installation method, which is used in the aforementioned RFID tag device or RFID tag system, and includes:

[0076] Fix the heating device 4 and the outer casing 1 inside the heating device 4 to the precast steel reinforcement;

[0077] Grouting concrete into the reinforcing steel of the precast component;

[0078] Add the heating reagent into heating device 4;

[0079] Vibrate the concrete slurry; after vibration, the retarding material will solidify and set.

[0080] Use a reader to read RFID tag 3, and upload the information read and the information written by the reader to the cloud platform.

[0081] The above-mentioned RFID tag installation method is simple to operate. The orientation of the RFID tag will not change with the rotation of the outer shell 1. The installation angle requirement of the outer shell 1 is low, which makes it easy to ensure that the orientation of the RFID tag meets the requirements after the retarding material solidifies, thereby improving the reading success rate of the reading device.

[0082] The step of "adding the heating reagent to the heating device 4" can also be performed before "grouting concrete into the precast steel reinforcement".

[0083] The heating reagent can be quicklime or other reagents that release heat when they come into contact with water.

[0084] like Figure 4 and Figure 5 As shown, taking the example of installing the RFID tag device inside a precast concrete component of a tunnel, with the protective shell 2 stationary inside the outer shell 1, and the orientation of the RFID tag 3 parallel to the direction of gravity of the protective shell 2, a specific explanation will be provided:

[0085] like Figure 4 As shown, the precast concrete component is curved into an arc shape. During processing, the precast steel reinforcement is processed into an arc-shaped frame structure, with the inner arc side facing downwards, ensuring that the left and right ends of the precast steel reinforcement are at the same height from the ground. When installing the RFID tag device, the heating device 4 and the outer shell 1 inside the heating device 4 can be fixed to the precast steel reinforcement by binding or other methods. The distance between the outer shell 1 and the left and right ends of the precast steel reinforcement is equal and close to the inner arc side of the precast steel reinforcement. When the outer shell 1 is stationary, the RFID tag 3 faces vertically downwards, that is, the RFID tag 3 can face the arc center of the precast skeleton, which facilitates the reading of the RFID tag throughout the process. Subsequently, concrete is poured into the precast steel reinforcement, and quicklime is added to the heating device 4. The quicklime releases heat, promoting the solidification of the retarder. After the concrete slurry is vibrated and solidified, the precast concrete component 5 is formed, as shown. Figure 5 As shown, eight precast concrete components 5 are prepared and then connected sequentially to form a precast concrete component for the tunnel. During subsequent construction, a reading device can be used to read the RFID tag 3 and upload the read information and the information written by the reading device to the cloud platform.

[0086] In the aforementioned precast concrete component 5, the RFID tag 3 inside each precast concrete component 5 faces the arc center of the precast concrete component 5, effectively ensuring reading efficiency and reliability.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An RFID tag device, characterized in that, The device includes an outer shell (1), a protective shell (2), and an RFID tag (3). The outer shell (1) contains a retarding substance and the protective shell (2). The RFID tag (3) is fixed inside the protective shell (2). The density of the protective shell (2) is less than the density of the retarding substance, so that the RFID tag (3) inside the retarding substance remains unchanged by buoyancy when the retarding substance is in a liquid state. The protective shell (2) is disc-shaped and includes an upper shell and a lower shell (21). The upper shell and the lower shell (21) can be symmetrically arranged. When they are fastened together, they form an annular cavity for accommodating the coil in the RFID tag (3). The annular cavity is formed at the edge of the upper shell and the lower shell (21).

2. The RFID tag device according to claim 1, characterized in that, The outer casing (1) includes an upper outer casing (11) and a lower outer casing (12), which are fastened together to form a first mounting cavity for accommodating the retarding substance and the protective shell (2).

3. The RFID tag device according to claim 1, characterized in that, The outer wall of the outer shell (1) is provided with two oppositely arranged hanging ears (13), which are used for the rope to pass through.

4. The RFID tag device according to claim 1, characterized in that, The retarding substance is a single-component adhesive.

5. The RFID tag device according to any one of claims 1-4, characterized in that, When the protective shell (2) is stationary inside the outer shell (1), the orientation of the RFID tag (3) is parallel to the direction of gravity of the protective shell (2).

6. The RFID tag device according to any one of claims 1-4, characterized in that, The RFID tag device also includes a heating device (4) for heating the housing (1), the housing (1) being placed inside the heating device (4).

7. The RFID tag device according to claim 6, characterized in that, The heating device (4) includes a carrier box (41) having an opening (411) for the outer shell (1) to enter and exit, and a gap for holding the mixed material between the carrier box (41) and the outer shell (1).

8. An RFID tag system, characterized in that, The device includes a reading device, a cloud platform, and an RFID tag device as described in any one of claims 1-7. The reading device includes a reading unit and a writing terminal. The reading unit is used to read the information of the RFID tag (3), and the writing terminal is used to write information in the prefabrication process. The reading device is connected to the cloud platform to upload the read and written information to the cloud platform.

9. An RFID tag installation method, used in the RFID tag device according to any one of claims 1-7, or in the RFID tag system according to claim 8, characterized in that, include: The heating device (4) and the outer shell (1) inside the heating device (4) are fixed to the precast steel reinforcement; Grout concrete into the precast steel reinforcement; Add the heating reagent into the heating device (4); Vibrate the concrete slurry; after vibration, the retarding substance solidifies and sets. The RFID tag (3) is read using a reading device, and the information read and the information written by the reading device are uploaded to the cloud platform.

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