Intelligent well lid management RFID tag

Abstract

The utility model discloses an intelligent well lid management RFID tag, which comprises a first injection molding shell and a second injection molding shell arranged on the outer side of the first injection molding shell through secondary injection molding, an induction antenna and a control circuit board are arranged on the inner side of the first injection molding shell, and a connecting column is arranged on the lower portion of the second injection molding shell. The second injection molding shell or the first injection molding shell is provided with a luminous body, the luminous body is connected with the control circuit board, the intelligent well lid management RFID tag further comprises a protection cup, one side of the protection cup is provided with an embedding groove, the second injection molding shell is embedded into the embedding groove, the protection cup is further provided with a through hole for the connecting column to penetrate through, and the connecting column can penetrate through the through hole through secondary injection molding packaging. And the supporting surface of the product is sleeved with the protection cup, so that the product can bear severe environments of high temperature, high humidity and high pressure. The luminous body is integrated on the product, and when the product is read and written by using a reader-writer, light emitted by the product can be obviously seen at a relatively far distance, so that the searching time of maintenance personnel is shortened, and the emergency repair efficiency is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover management technology, and in particular to an intelligent manhole cover management RFID tag. Background Technology

[0002] With the advancement of smart city construction, the demand for intelligent management of municipal infrastructure is increasing. As a crucial entry and exit point for urban underground pipe networks, the safety management and real-time monitoring of manhole covers have become key aspects of municipal management. Currently, RFID tags are widely used in intelligent manhole cover management technologies due to their contactless identification characteristics.

[0003] However, existing RFID tags used for manhole cover management have significant drawbacks: First, traditional tags mostly employ a single injection molding process, and their shell structures generally lack sufficient mechanical strength when subjected to extreme conditions such as long-term exposure to heavy vehicle pressure. Second, the installation structure of existing products has design flaws. Most tags use planar adhesive or simple snap-fit ​​fixing methods, which are prone to structural loosening under frequent opening and closing of manhole covers and vibration environments, easily causing communication inaccuracies between the antenna and the reader.

[0004] Furthermore, in low-light environments such as nighttime inspections, existing RFID tags generally lack active visibility capabilities. Statistics show that maintenance personnel spend a considerable amount of time locating traditional tags without auxiliary lighting, severely hindering emergency repair efficiency. Although some solutions have attempted to add reflective coatings, the actual effective identification distance is very short, and they are easily affected by rain and fog.

[0005] This utility model is based on the above-mentioned circumstances. Utility Model Content

[0006] This invention overcomes the shortcomings of the prior art and provides an intelligent manhole cover management RFID tag with higher mechanical strength, optimized installation structure, enhanced visibility and a complete protection system.

[0007] This utility model is achieved through the following technical solution:

[0008] A smart manhole cover management RFID tag includes a first injection-molded shell and a second injection-molded shell on the outside of the first injection-molded shell. An induction antenna and a control circuit board are provided on the inner side of the first injection-molded shell. A connecting post is provided at the lower part of the second injection-molded shell. A light-emitting element is provided on the second injection-molded shell or the first injection-molded shell. The light-emitting element is connected to the control circuit board. The smart manhole cover management RFID tag also includes a protective cup. An embedding groove is provided on one side of the protective cup. The second injection-molded shell is embedded in the embedding groove. The protective cup also has a through hole for the connecting post to pass through.

[0009] As described above, in an intelligent manhole cover management RFID tag, the outer wall of the connecting post is provided with multiple protrusions to increase the friction between the connecting post and the surrounding material.

[0010] As described above, a smart manhole cover management RFID tag has a limiting groove between two adjacent protrusions in the circumferential direction of the connecting column.

[0011] As described above, in an intelligent manhole cover management RFID tag, the wall of the through hole is provided with a limiting block that can be inserted into a limiting groove.

[0012] The RFID tag for intelligent manhole cover management described above includes an LED light as its light-emitting element.

[0013] As described above, in a smart manhole cover management RFID tag, the control circuit board is equipped with a chip for driving LED lights to emit light.

[0014] As described above, in an intelligent manhole cover management RFID tag, the sensing antenna includes an FR antenna connected to a control circuit board.

[0015] As described above, in an intelligent manhole cover management RFID tag, the first injection-molded housing and / or the second injection-molded housing are injection-molded from three high-temperature resistant materials: PC, ASA, and RF.

[0016] As described above, in an intelligent manhole cover management RFID tag, the protective cup is made of metal.

[0017] As described above, in an intelligent manhole cover management RFID tag, the second injection-molded housing is circular.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] This invention is manufactured through a secondary injection molding process. A protective cup is fitted onto the product's supporting surface, enabling the product to withstand harsh environments with high temperature, high humidity, and high pressure. The product integrates a light-emitting element, allowing the light emitted by the product to be clearly visible from a distance when using a reader / writer, thus shortening the search time for maintenance personnel and accelerating emergency repair efficiency. Attached Figure Description

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is an exploded view of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the induction antenna and control circuit board in this utility model;

[0023] Figure 3 This is a cross-sectional schematic diagram of the present invention;

[0024] Figure 4 This is an installation diagram of this utility model. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1 to 4 The smart manhole cover management RFID tag shown includes a first injection-molded shell 1 and a second injection-molded shell 2 on the outside of the first injection-molded shell 1. An induction antenna 3 and a control circuit board 4 are provided inside the first injection-molded shell 1. A connecting post 5 is provided at the lower part of the second injection-molded shell 2. A light-emitting element 6 is provided on the second injection-molded shell 2 or the first injection-molded shell 1. The light-emitting element 6 is connected to the control circuit board 4. The smart manhole cover management RFID tag also includes a protective cup 7. An embedding groove 71 is provided on one side of the protective cup 7. The second injection-molded shell 2 is embedded in the embedding groove 71. The protective cup 7 is also provided with a through hole 72 for the connecting post 5 to pass through.

[0027] This invention is manufactured through a secondary injection molding process. A protective cup 7 is fitted onto the supporting surface of the product, enabling it to withstand harsh environments with high temperature, high humidity, and high pressure. The product integrates a light-emitting element 6, allowing the light emitted by the product to be clearly visible from a distance when using a reader / writer, thus shortening the search time for maintenance personnel and accelerating emergency repair efficiency.

[0028] The aforementioned control circuit board 4 is equipped with a power supply to power the light-emitting body 6 and emit light, and the position of the light emission can be read all day long.

[0029] In one embodiment, the outer wall of the connecting post 5 is provided with a plurality of protrusions 51 for increasing the friction between the connecting post 5 and the surrounding material. In the circumferential direction of the connecting post 5, a limiting groove 52 is provided between two adjacent protrusions 51. A limiting block 73 for inserting into the limiting groove 52 is provided on the wall of the through hole 72.

[0030] The limiting block 73 is inserted into the limiting groove 52, forming a composite constraint mechanism of axial frictional resistance and circumferential mechanical locking, thereby limiting the rotation of the protective cup 7 and making the structure more compact and stable. The connecting column 5 and the second injection-molded shell 2 are an integral structure, and the protrusion 51 can be wedge-shaped or serrated. The limiting block 73 and the protective cup 7 are an integral structure.

[0031] In one embodiment, the light-emitting element 6 is an LED lamp, and the control circuit board 4 is provided with a chip 41 for driving the LED lamp to emit light. When the LED lamp is disposed on the first injection molded housing 1, the second injection molded housing 2 is provided with a window for the light to pass through.

[0032] In one embodiment, the sensing antenna 3 includes an FR4 antenna connected to the control circuit board 4. The FR4 antenna can be directly etched onto the control circuit board 4, eliminating additional assembly steps and reducing mass production costs.

[0033] In one embodiment, the protective cup 7 is made of a metal material, thereby providing better protection for the second injection-molded housing 2.

[0034] In one embodiment, both the protective cup 7 and the second injection-molded housing 2 are circular to better distribute stress. Of course, the protective cup 7 and the second injection-molded housing 2 can also be other shapes.

[0035] In one embodiment, the first injection-molded housing 1 and / or the second injection-molded housing 2 are injection-molded from three high-temperature resistant materials: PC, ASA, and RF4. This enables the product to withstand harsh environments with high temperature, high humidity, and high pressure.

Claims

1. An intelligent manhole cover management RFID tag, characterized in that: The system includes a first injection-molded housing (1) and a second injection-molded housing (2) on the outside of the first injection-molded housing (1). An induction antenna (3) and a control circuit board (4) are provided on the inside of the first injection-molded housing (1). A connecting post (5) is provided at the bottom of the second injection-molded housing (2). A light-emitting element (6) is provided on the second injection-molded housing (2) or the first injection-molded housing (1). The light-emitting element (6) is connected to the control circuit board (4). The smart manhole cover management RFID tag also includes a protective cup (7). An embedding groove (71) is provided on one side of the protective cup (7). The second injection-molded housing (2) is embedded in the embedding groove (71). The protective cup (7) is also provided with a through hole (72) for the connecting post (5) to pass through.

2. The intelligent manhole cover management RFID tag according to claim 1, characterized in that: The outer wall of the connecting column (5) is provided with a plurality of protrusions (51) for increasing the friction between the connecting column (5) and the surrounding material.

3. The intelligent manhole cover management RFID tag according to claim 2, characterized in that: In the circumferential direction of the connecting column (5), a limiting groove (52) is provided between two adjacent protrusions (51).

4. The intelligent manhole cover management RFID tag according to claim 3, characterized in that: The through hole (72) is provided with a limiting block (73) that can be inserted into the limiting groove (52).

5. A smart manhole cover management RFID tag according to any one of claims 1-4, characterized in that: The light-emitting element (6) includes an LED light.

6. The intelligent manhole cover management RFID tag according to claim 5, characterized in that: The control circuit board (4) is provided with a chip (41) for driving the LED lamp to emit light.

7. A smart manhole cover management RFID tag according to any one of claims 1-4, characterized in that: The inductive antenna (3) includes an FR4 antenna connected to the control circuit board (4).

8. A smart manhole cover management RFID tag according to any one of claims 1-4, characterized in that: The first injection molded housing (1) and / or the second injection molded housing (2) are injection molded from three high-temperature resistant materials: PC, ASA and RF4.

9. A smart manhole cover management RFID tag according to any one of claims 1-4, characterized in that: The protective cup (7) is made of metal.

10. The intelligent manhole cover management RFID tag according to claim 1, characterized in that: The second injection-molded housing (2) is circular.

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