RFID wireless radio frequency identification device

Abstract

The utility model relates to a kind of RFID wireless radio frequency industrial identification device, and it relates to RFID identification technical field.It includes: fixed connection's first shell and second shell;Antenna module and main control module;Antenna module is fixedly connected in the first shell, main control module is installed in the second shell, and there is installation gap between antenna module and main control module;Wherein, the first shell and the second shell are connected to form installation cavity, the inside height of the installation cavity is h, and the installation gap is 1 / 6-1 / 3 of h.The utility model passes through installation gap combination antenna module and main control module, while maintaining the compactness of equipment, the vibration interference problem that traditional RFID equipment faces in industrial environment is solved.

Description

Technical Field

[0001] This utility model relates to the field of RFID identification technology, specifically to an RFID wireless radio frequency industrial identification device. Background Technology

[0002] As a key technology in the Internet of Things (IoT) field, Radio Frequency Identification (RFID) technology directly impacts the reliability and efficiency of the system through the performance of its readers. Existing RFID reader designs primarily focus on antenna optimization, circuit integration, and structural design, striving for a balance between reading distance, identification accuracy, and environmental adaptability. However, with the increasing complexity of industrial applications, traditional designs are showing limitations in handling issues such as dense tag reading and interference from metallic environments. Particularly in the collaborative design of the antenna and main control circuit, effectively suppressing electromagnetic interference and optimizing signal integrity have become pressing technical challenges.

[0003] Patent document CN220290217U discloses a portable radio frequency identification terminal based on RFID, which adopts a dual-antenna design (first RFID antenna 21 and second RFID antenna 22) to improve the identification range. This design expands the reading range to a certain extent, but lacks optimization design for antenna spacing, resulting in obvious mutual coupling effect between antennas. Patent document CN210428499U discloses a high-performance, highly integrated, low-cost portable RFID reader, but it also has the problem of the antenna being too close to the main control circuit, resulting in serious near-field coupling. Utility Model Content

[0004] To address the problem of weak anti-interference capability in existing RFID systems, this invention provides an RFID wireless radio frequency industrial identification device.

[0005] The technical solution of this utility model is as follows: An RFID (Radio Frequency Identification) industrial device includes: The first and second housings are fixedly connected: Antenna module and main control module: The antenna module is fixedly connected inside the first housing, and the main control module is installed inside the second housing. There is an installation gap between the antenna module and the main control module. The first housing and the second housing are connected to form a mounting cavity, the internal height of the mounting cavity is h, and the mounting gap is 1 / 6 to 1 / 3 of h.

[0006] In this invention, when the installation gap is 1 / 3 to 1 / 6 of h, it is found that the RFID technology of the antenna module and the main control module in this solution has the effect of suppressing incoming field coupling interference. While maintaining the compactness of the equipment, it perfectly solves the vibration interference problem faced by traditional RFID equipment in industrial environments. It has the advantages of high identification accuracy and significantly improved mean time between failures, providing a reliable RFID solution for industrial Internet of Things applications.

[0007] Preferably, the first housing includes a first arc-shaped portion distributed around its inner perimeter, and the second housing has a second arc-shaped portion distributed around its inner perimeter. The first and second arc-shaped portions are used for connecting screws to fix the first and second housings. This invention, by adding arc-shaped portions to the housing structure, achieves the limiting and fixing of the internal antenna module and main control module, thereby giving the circuit structure better mechanical stability.

[0008] Preferably, the first housing includes a spacer slot located above the first arc-shaped portion, and the antenna module is fixedly connected to the spacer slot. The spacer slot in the arc-shaped portion allows for better fixation of the antenna module, providing a basis for achieving the required mounting clearance.

[0009] Furthermore, the bottom inner edge of the first housing is provided with a first protrusion, and the top of the second housing is provided with a second groove that matches the first protrusion. The inner side of the top of the second groove and the inner side of the first housing have a locking gap to form the interval groove.

[0010] Preferably, the main control module has several pin sections at one corner, and corresponding connecting clips are provided for each pin section. Each connecting clip has several pins that connect to the pin sections, and the connecting clip extends downwards to a right-angle fixing part that is fixedly connected to one side of the second arc-shaped section. Based on the groove in the arc-shaped section, the connecting clips, and the right-angle fixing part, the distance between the antenna module and the main control module is limited. The cooperative design of the connecting clips and the right-angle fixing part also ensures the positioning accuracy between the main control module and the antenna module.

[0011] Preferably, the main control module includes a substrate, and the mounting gap includes the distance h between the bottom surface of the antenna module and the top surface of the substrate.

[0012] Preferably, the main control module also includes a female power strip connector. In this invention, the female power strip connector enables quick connection and flexible expansion.

[0013] Preferably, an identification part is provided at the bottom of the second housing, and an LED indicator ring is provided at the edge of the identification part. In this invention, the LED status indication enhances human-computer interaction, and the ring structure enables 360° status monitoring, improving recognition accuracy. In most states, the power consumption of a single LED is <5mW, and even with one or multiple LEDs simultaneously, it is a low-power design, which can improve the lifespan of the device and save on product operating costs.

[0014] Preferably, the first and second housings are made of square material, and external screws are provided on the outer sides of the first and second housings.

[0015] Preferably, the first shell is made of transparent ABS material, and the second shell is made of aluminum alloy material.

[0016] Furthermore, the housing measures 90*94*40mm. The ABS material ensures RF transparency, while the underlying aluminum alloy housing enhances heat dissipation. Its compact size makes it suitable for industrial installations, such as DIN rail compatibility.

[0017] Preferably, the mounting gap is 15mm. A 15mm gap achieves optimal impedance matching, balancing near-field suppression with structural compactness.

[0018] Preferably, the recognition unit includes a square recognition area.

[0019] The advantages of this utility model based on the above solution are as follows: This invention combines an RFID circuit—an antenna module and a main control module—with an installation gap, perfectly solving the vibration interference problem faced by traditional RFID equipment in industrial environments while maintaining the compactness of the equipment. It has excellent performance with high identification accuracy and significantly improved mean time between failures, providing a reliable RFID solution for industrial IoT applications. Attached Figure Description

[0020] Figure 1 This is a side view of the structure of this utility model; Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure shown by the mid-section line AA; where the dashed line represents the virtual installation gap h; Figure 3 for Figure 2 A magnified schematic diagram of the structure shown in the middle circle B area; Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure shown by the mid-section line of sight CC; Figure 5 for Figure 1 A schematic diagram of the cross-sectional structure shown by the mid-section line of sight DD; Figure 6 This is a schematic diagram of the first explosion structure of the present invention from a first-view perspective. Figure 7 This is a schematic diagram of the second blasting structure of this utility model; Figure 8 This is a schematic diagram of the first explosion structure in the second perspective view of this utility model; In the diagram, 100, First housing; 110, First arc-shaped portion; 120, Spacing groove; 130, First protrusion; 200, Second housing; 210, Second arc-shaped portion; 220, Connecting clip; 221, Pin; 230, Second groove; 240, Identification part; 300, Main control module; 310, Plug female connector; 320, Substrate and antenna module; 500, Mounting gap. Detailed Implementation

[0021] To better understand the purpose, technical solution, and technical effects of this utility model, the following description, in conjunction with the accompanying drawings and embodiments, will provide further explanation. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need further definition and explanation in subsequent drawings. It is also stated that the embodiments described below are only for explaining this utility model and are not intended to limit it.

[0022] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there may be an intermediate component.

[0023] The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product is usually placed when in use, or the orientation or positional relationship in which a person skilled in the art would normally understand it, or the orientation or positional relationship in which the product is usually placed when in use. It is only for the purpose of facilitating the description of this application and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Example 1

[0024] like Figure 1-6 As shown: An RFID (Radio Frequency Identification) industrial identification device, comprising: The first housing 100 and the second housing 200 are fixedly connected: Antenna module 400 and main control module 300: Antenna module 400 is fixedly connected inside the first housing 100, and main control module 300 is installed inside the second housing 200. There is an installation gap 500 between antenna module 400 and main control module 300. The first housing 100 and the second housing 200 are connected to form an installation cavity, the internal height of the installation cavity is h, and the installation gap 500 is 1 / 6 to 1 / 3 of h.

[0025] In this invention, when the installation gap 500 is 1 / 3 to 1 / 6 of h, it is found that the RFID technology of the antenna module 400 and the main control module 300 in this solution has the effect of suppressing incoming field coupling interference. While maintaining the compactness of the equipment, it perfectly solves the problem of vibration interference faced by traditional RFID equipment in industrial environments. It has the advantages of high identification accuracy and significantly improved mean time between failures, providing a reliable RFID solution for industrial Internet of Things applications.

[0026] Specifically, the main control module 300 includes a substrate 320 and various functional components mounted on the substrate 320, and the mounting gap includes the distance h between the bottom surface of the antenna module 300 and the top surface of the substrate 320.

[0027] Preferably, the first housing 100 includes a first arc-shaped portion 110 distributed around its inner perimeter, and the second housing 200 has a second arc-shaped portion 210 distributed around its inner perimeter. The first arc-shaped portion 110 and the second arc-shaped portion 210 are used to fix the first housing 100 and the second housing 200 with mating screws. This invention, by adding arc-shaped portions to the housing structure, achieves the limiting and fixing of the internal antenna module 400 and the main control module 300, thereby giving the circuit structure better mechanical stability.

[0028] like Figure 1 , 3 As shown, preferably, the first housing 100 includes a spacer slot 120 located above the first arcuate portion 110, and the antenna module 400 is fixedly connected to the spacer slot 120. The spacer slot 120 in the arcuate portion can better fix the antenna module 400, providing a basis for achieving the mounting gap 500.

[0029] The bottom inner edge of the first housing 100 is provided with a first protrusion 130, and the top of the second housing 200 is provided with a second groove 230 that matches the first protrusion 130. The inner side of the top of the second groove 230 has a locking gap with the inner side of the first housing 100, forming the spacer groove 120.

[0030] like Figure 2 , 6 As shown in Figure 8, preferably, the main control module 300 has several pin portions at one corner, and a connecting clip 220 is provided corresponding to each pin portion. The connecting clip 220 has several pins 221 that are connected to the pin portions. The connecting clip 220 extends downward to a right-angle fixing portion that is fixedly connected to one side of the second arc-shaped portion 210. Based on the groove in the arc-shaped portion, the connecting clip 220 and its right-angle fixing portion, the distance between the antenna module 400 and the main control module 300 is limited. The cooperative design of the connecting clip 220 and the right-angle fixing portion also ensures the positioning accuracy between the main control module 300 and the antenna module 400.

[0031] like Figure 7 As shown, preferably, the main control module 300 also includes a female power strip connector 310. In this invention, the female power strip connector 310 enables quick connection and flexible expansion.

[0032] like Figure 6 As shown, preferably, an identification part 240 is provided below the second housing 200, and an LED indicator ring is provided around the edge of the identification part 240. In this invention, the LED status indication enhances human-computer interaction, and the ring structure enables 360° status monitoring, improving recognition accuracy. In most states, the power consumption of a single LED is <5mW, and even with one or multiple LEDs simultaneously, it is a low-power design, which can improve the lifespan of the device and save on product usage costs.

[0033] like Figure 1 , 2 As shown in Figures 6 and 7, preferably, the first housing 100 and the second housing 200 are made of square material, and external screws are provided on the outer side of the first housing 100 and the second housing 200.

[0034] Preferably, the first housing 100 is made of transparent ABS material, and the second housing 200 is made of aluminum alloy material.

[0035] Furthermore, the housing measures 90*94*40mm. The ABS material ensures RF transparency, while the underlying aluminum alloy housing enhances heat dissipation. Its compact size makes it suitable for industrial installations, such as DIN rail compatibility.

[0036] Preferably, the mounting gap 500 is 15mm. A 15mm gap achieves optimal impedance matching, balancing near-field suppression with structural compactness.

[0037] Preferably, the recognition unit 240 includes a square recognition area.

[0038] This invention combines an RFID circuit with an installation gap of 500, consisting of an antenna module 400 and a main control module 300. While maintaining the compactness of the equipment, it perfectly solves the problem of vibration interference faced by traditional RFID equipment in industrial environments. It has excellent performance with high recognition accuracy and significantly improved mean time between failures, providing a reliable RFID solution for industrial Internet of Things applications.

[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0040] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An RFID (Radio Frequency Identification) industrial identification device, characterized in that, include: The first and second housings are fixedly connected: Antenna module and main control module: The antenna module is fixedly connected inside the first housing, and the main control module is installed inside the second housing. There is an installation gap between the antenna module and the main control module. The first housing and the second housing are connected to form a mounting cavity, the internal height of the mounting cavity is h, and the mounting gap is 1 / 6 to 1 / 3 of h.

2. The RFID wireless radio frequency identification device according to claim 1, characterized in that, The first housing includes a first arc-shaped portion distributed around its inner perimeter, and the second housing has a second arc-shaped portion distributed around its inner perimeter. The first and second arc-shaped portions are used to connect screws to fix the first and second housings.

3. The RFID wireless radio frequency identification device according to claim 2, characterized in that, The main control module has several pins at one corner, and a connecting card is provided for each pin. The connecting card has several pins that are connected to the pins. The connecting card extends downward to a right-angle fixing part that is fixedly connected to one side of the second arc-shaped part.

4. The RFID wireless radio frequency identification device according to claim 1, characterized in that, The first housing includes a spacer slot located above the first arc-shaped portion, and the antenna module is fixedly connected to the spacer slot.

5. The RFID wireless radio frequency identification device according to claim 4, characterized in that, The bottom inner edge of the first housing is provided with a first protrusion, and the top of the second housing is provided with a second groove that matches the first protrusion. The inner side of the top of the second groove and the inner side of the first housing have a locking gap, forming the interval groove.

6. The RFID wireless radio frequency identification device according to claim 1, characterized in that, The main control module includes a substrate, and the mounting gap includes the distance h between the bottom surface of the antenna module and the top surface of the substrate.

7. The RFID wireless radio frequency identification device according to claim 2, characterized in that, The second housing has an identification part at the bottom, and the edge of the identification part has an LED indicator ring.

8. The RFID wireless radio frequency identification device according to claim 1, characterized in that, The first shell is made of transparent ABS material, and the second shell is made of aluminum alloy.

9. An RFID wireless radio frequency identification device according to claim 1, characterized in that, The housing has a size of 90*94*40mm.

10. An RFID wireless radio frequency identification device according to any one of claims 1-8, characterized in that, The installation gap is 12mm.

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