Wireless radio frequency remote transmission acquisition device capable of preventing signal interference

Abstract

The utility model discloses a wireless radio frequency remote transmission acquisition device capable of preventing signal interference, which comprises a metal shielding case, a shielding net is arranged at the top of the metal shielding case, an adjusting assembly is arranged in the shielding net, an acquisition shell is arranged in the metal shielding case, a receiver main body is arranged in the acquisition shell, and the receiver main body is arranged in the receiver main body. A first interface, a second interface, a third interface and a fixing plate are mounted on the outer wall of the receiver main body, and an isolation plate is fixedly connected to the interior of the collection shell. According to the wireless radio frequency remote transmission acquisition device capable of preventing signal interference provided by the utility model, dynamic shielding of interference signals with different frequencies and intensities is realized through cooperation of the metal shielding cover, the shielding net and the adjusting assembly, and the adjusting assembly can flexibly adjust the signal interference performance by changing the aperture size of the shielding net according to the actual interference condition.

Description

Technical Field

[0001] This utility model relates to the field of wireless radio frequency remote transmission and acquisition technology, specifically a wireless radio frequency remote transmission and acquisition device that is protected against signal interference. Background Technology

[0002] In the utility model patent application CN216851951U, published on June 28, 2022, entitled "A Portable Industrial Wireless WIA-FA Data Acquisition Device," this utility model relates to the field of wireless data acquisition technology, specifically a portable industrial wireless WIA-FA data acquisition device. The device includes a housing, which comprises a protective case; and a receiving mechanism, which includes a radio frequency processor connected to the surface of the protective case. An radio frequency amplifier (PA) is disposed on the surface of the radio frequency processor. This utility model uses a wireless WIA-FA network as the data transmission link network and is powered by a portable battery, eliminating the need for an external power supply. The device acquires data from external instruments through a data acquisition circuit, interacts with the processing circuit via a bus, and ultimately transmits the data via the wireless WIA-FA network, enabling remote viewing and storage. This allows operators to remotely transmit acquired data information and reduces the data acquisition cost for industrial instruments.

[0003] Among the prior art including the aforementioned patents, the existing technology pertains to chips and communication transmission. It focuses on data transmission, transmission and reception frequencies, and distance, and its applications are general-purpose and widely used in civilian applications such as smart transportation, smart water management, and urban pipe networks.

[0004] For industrial applications, such as the transmission of digital, analog, and resistance signals, there is no effective and comprehensive solution. This technology can perfectly solve the problem of unifying various industrial signal sources and connecting them to a host computer. However, existing technologies have not given much consideration to the security of industrial applications. Traditional acquisition devices generally use fixed shielding structures, which are difficult to adapt to interference signals of different frequencies and intensities. They also have shortcomings in heat dissipation, as the heat generated by the heat-generating components cannot be dissipated in time, affecting the performance and lifespan of the acquisition device. There is a need for a wireless radio frequency remote transmission acquisition device that can effectively prevent signal interference, has good heat dissipation performance, and has a reasonable structural layout. Utility Model Content

[0005] The purpose of this invention is to provide a wireless radio frequency remote transmission acquisition device that prevents signal interference, so as to solve the signal interference problem mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a wireless radio frequency remote transmission acquisition device for preventing signal interference, comprising a metal shielding cover, a shielding mesh installed on the top of the metal shielding cover, an adjustment component installed inside the shielding mesh, an acquisition shell installed inside the metal shielding cover, a receiver body installed inside the acquisition shell, a first interface installed on the outer wall of the receiver body, a second interface installed on the outer wall of the receiver body, a third interface installed on the outer wall of the receiver body, a fixing plate installed on the outer wall of the receiver body, and an isolation plate fixedly connected inside the acquisition shell.

[0007] Furthermore, the internal components of the adjustment assembly include a drive motor, a drive rod, a first adjustment plate, a second adjustment plate, a drive gear, a driven gear, and finned heat sinks. The drive motor is mounted on the top of the shielding mesh. The output shaft of the drive motor is fixedly connected to the drive rod via a coupling. One end of the drive rod is fixedly connected to the first adjustment plate, and the other end of the drive rod is fixedly connected to the second adjustment plate. A driven gear is mounted on one side of the second adjustment plate, and a drive gear is mounted on the bottom of the second adjustment plate. A finned heat sink is fixedly connected to the central shaft of the driven gear.

[0008] Furthermore, both the first adjusting plate and the shielding mesh are provided with receiving holes, and the diameter of the receiving holes of the first adjusting plate and the second adjusting plate is smaller than that of the shielding mesh.

[0009] Furthermore, the drive gear and the driven gear mesh with each other, and the finned heat sink is located inside the acquisition housing. The drive motor is a micro stepper motor, the finned heat sink has a wave-shaped structure, and the finned heat sink is located at the heat dissipation port of the receiver body.

[0010] Furthermore, the isolation plate adopts a double-layer metal sandwich insulation structure, which divides the inside of the acquisition housing into a radio frequency signal processing area and a power management area.

[0011] Furthermore, the inner wall of the metal shielding cover is coated with conductive paint, and the conductive paint is connected to the external grounding electrode through a grounding wire. The first interface, the second interface and the third interface are all covered with metal shielding sleeves, and the metal shielding sleeves are electrically connected to the metal shielding cover by welding.

[0012] Furthermore, a shock-absorbing rubber pad is provided between the acquisition shell and the metal shield, and a threaded hole is provided on the fixing plate, which is fixedly connected to the receiver body by screws.

[0013] Compared with the prior art, the beneficial effects of this utility model are: this anti-signal interference wireless radio frequency remote transmission acquisition device is reasonable and has the following advantages:

[0014] (1) Through the cooperation of metal shielding cover, shielding mesh and adjustment components, dynamic shielding of interference signals of different frequencies and intensities can be achieved. The adjustment components can flexibly adjust the shielding performance of the shielding mesh by changing the aperture size of the shielding mesh according to the actual interference situation. Compared with the traditional fixed shielding structure, it greatly improves the ability to prevent signal interference, ensures the accuracy of the collected data and the stability of the signal transmission. At the same time, the reasonable layout prevents mutual interference between internal structures. The isolation plate divides the inside of the acquisition shell into the radio frequency signal processing area and the power management area to prevent the power supply part from interfering with the radio frequency signal processing part. At the same time, the connection and fixing methods between the components are reasonable, such as the connection between the fixing plate and the receiver body, and the shock absorption design between the acquisition shell and the metal shielding cover, which ensures the stability of the internal structure of the device, reduces internal mutual interference, and improves the reliability of the acquisition device.

[0015] (2) By collecting industrial field signals such as switch signals, analog signals, resistance values, Modbus signals, and current signals, the data is converted into data and wirelessly transmitted to the receiver port. The receiver displays these signals through calculation formulas and forwards them to the host computer through other ports of the receiver. The host computer converts these signals into switch signals, analog signals, resistance values, Modbus signals, and current signals through other ports of the receiver. External historical data is stored through other ports of the receiver. The heat dissipation part designed in the device is used to dissipate heat at the connection heat-generating points. The finned heat sink is linked with the drive motor, which accelerates airflow while adjusting the shielding performance, thus dissipating heat from the receiver body. The wave-shaped structure of the finned heat sink increases the heat dissipation area and improves the heat dissipation efficiency, effectively solving the heat dissipation problem of the heat-generating components inside the acquisition device and extending the service life of the acquisition device. Attached Figure Description

[0016] Figure 1 This is an external view of the present utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the housing and the first interface of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the adjustment component and the shielding mesh of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the adjustment component of this utility model.

[0021] In the diagram: 1. Metal shielding cover; 2. Shielding mesh; 3. Adjustment assembly; 301. Drive motor; 302. Drive rod; 303. First adjustment plate; 304. Second adjustment plate; 305. Drive gear; 306. Driven gear; 307. Finned heat sink; 4. Acquisition housing; 5. Receiver body; 6. First interface; 7. Second interface; 8. Third interface; 9. Fixing plate; 10. Isolation plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-5 The present invention provides a technical solution as follows:

[0024] Example 1:

[0025] A wireless radio frequency remote transmission acquisition device for preventing signal interference includes a metal shield 1, a shielding mesh 2 installed on the top of the metal shield 1, an adjustment component 3 installed inside the shielding mesh 2, an acquisition shell 4 installed inside the metal shield 1, a receiver body 5 installed inside the acquisition shell 4, a first interface 6 installed on the outer wall of the receiver body 5, a second interface 7 installed on the outer wall of the receiver body 5, a third interface 8 installed on the outer wall of the receiver body 5, a fixing plate 9 installed on the outer wall of the receiver body 5, and an isolation plate 10 fixedly connected inside the acquisition shell 4.

[0026] The above structure uses the metal shield 1 as the outer protective structure of the device, which can initially shield against external electromagnetic interference. The isolation plate 10 adopts a double-layer metal sandwich insulation structure, which divides the inside of the acquisition shell 4 into the radio frequency signal processing area and the power management area, effectively preventing the power supply part from interfering with the radio frequency signal processing part.

[0027] Furthermore, the internal components of the adjustment assembly 3 include a drive motor 301, a drive rod 302, a first adjustment plate 303, a second adjustment plate 304, a drive gear 305, a driven gear 306, and finned heat sinks 307. The drive motor 301 is mounted on the top of the shielding mesh 2. The output shaft of the drive motor 301 is fixedly connected to the drive rod 302 via a coupling. One end of the drive rod 302 is fixedly connected to the first adjustment plate 303, and the other end is fixedly connected to the second adjustment plate 304. A driven gear 306 is mounted on one side of the second adjustment plate 304. A drive gear 305 is installed at the bottom of the receiver 304. A finned heat sink 307 is fixedly connected to the central shaft of the driven gear 306. Both the first adjusting plate 303 and the shielding mesh 2 have receiving holes. The diameter of the receiving holes of the first adjusting plate 303 and the second adjusting plate 304 is smaller than that of the shielding mesh 2. The drive gear 305 and the driven gear 306 mesh with each other. The finned heat sink 307 is located inside the acquisition housing 4. The drive motor 301 is a micro stepper motor. The fins of the finned heat sink 307 adopt a wave-shaped structure. The finned heat sink 307 is located at the heat dissipation port of the receiver body 5.

[0028] The aforementioned structure, via a drive motor 301 driving a drive rod 302 to rotate, causes the first adjusting plate 303 and the second adjusting plate 304 to rotate, thereby changing the size of the receiving holes on the shielding mesh 2 and adjusting its shielding performance. Simultaneously, the finned heat sink 307 utilizes a wave-shaped fin structure, which increases the heat dissipation area and improves heat dissipation efficiency. The rotation of the drive motor 301 not only adjusts the shielding performance of the shielding mesh 2 but also drives the finned heat sink 307 to rotate, accelerating airflow and achieving heat dissipation for the receiver body 5.

[0029] Furthermore, the isolation plate 10 adopts a double-layer metal sandwich insulation structure, which divides the inside of the acquisition shell 4 into an RF signal processing area and a power management area. The inner wall of the metal shield 1 is coated with conductive paint, and the conductive paint and the metal shield 1 are connected to the external grounding electrode through a grounding wire. The first interface 6, the second interface 7 and the third interface 8 are all covered with metal shielding sleeves. The metal shielding sleeves and the metal shield 1 are electrically connected by welding. A shock-absorbing rubber pad is set between the acquisition shell 4 and the metal shield 1. The fixing plate 9 has threaded holes and is fixedly connected to the receiver body 5 by screws.

[0030] The above structure is connected to the external grounding electrode via conductive paint and metal shield 1 through a grounding wire. The grounding resistance is no more than four ohms, which can promptly conduct the static electricity and electromagnetic induction charge generated on the metal shield 1 to the ground, thereby enhancing the shielding effect.

[0031] Working principle: In use, the metal shielding cover 1 first provides initial shielding against external electromagnetic interference. When the device detects interference signals of different frequencies and intensities, the control circuit sends a command to the drive motor 301, which starts and drives the first adjustment plate 303 and the second adjustment plate 304 to rotate via the drive rod 302, changing the aperture size of the receiving hole. When the collector detects interference signals of different frequencies, the size of the mesh can be changed by controlling the drive motor 301, thereby adjusting the shielding performance of the shielding mesh 2 to adapt to different interference conditions.

[0032] Secondly, the isolation plate 10 inside the acquisition housing 4 divides it into the radio frequency signal processing area and the power management area, effectively preventing the power supply part from interfering with the radio frequency signal processing part. The metal shielding sleeves outside the first interface 6, the second interface 7 and the third interface 8 are electrically connected to the metal shielding cover 1, which further enhances the anti-interference capability at the interface. The shock-absorbing rubber pad between the acquisition housing 4 and the metal shielding cover 1 reduces the impact of external vibration on the internal structure of the device and ensures the stable operation of the device.

[0033] Finally, as the drive motor 301 rotates, the drive gear 305 rotates accordingly, and through meshing with the driven gear 306, drives the finned heat sink 307 to rotate. The finned heat sink 307 is located at the heat dissipation port of the receiver body 5. Its rotation accelerates the airflow, and combined with the increased heat dissipation area of ​​its own wave-shaped fins, it quickly dissipates the heat generated by the receiver body 5.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A wireless radio frequency remote transmission acquisition device for preventing signal interference, comprising a metal shield (1), characterized in that: The metal shield (1) is equipped with a shielding mesh (2) on top. An adjustment component (3) is installed inside the shielding mesh (2). A collection shell (4) is installed inside the metal shield (1). A receiver body (5) is installed inside the collection shell (4). A first interface (6) is installed on the outer wall of the receiver body (5). A second interface (7) is installed on the outer wall of the receiver body (5). A third interface (8) is installed on the outer wall of the receiver body (5). A fixing plate (9) is installed on the outer wall of the receiver body (5). An isolation plate (10) is fixedly connected inside the collection shell (4).

2. The wireless radio frequency remote transmission acquisition device for preventing signal interference according to claim 1, characterized in that: The adjustment assembly (3) includes a drive motor (301), a drive rod (302), a first adjustment plate (303), a second adjustment plate (304), a drive gear (305), a driven gear (306), and a finned heat sink (307). The top of the shielding mesh (2) is equipped with a drive motor (301). The output shaft of the drive motor (301) is fixedly connected to the drive rod (302) via a coupling. One end of the drive rod (302) is fixedly connected to the first adjustment plate (303), and the other end of the drive rod (302) is fixedly connected to the second adjustment plate (304). A driven gear (306) is installed on one side of the second adjustment plate (304), and a drive gear (305) is installed at the bottom of the second adjustment plate (304). The central shaft of the driven gear (306) is fixedly connected to the finned heat sink (307).

3. The wireless radio frequency remote transmission acquisition device for preventing signal interference according to claim 2, characterized in that: Both the first adjusting plate (303) and the shielding mesh (2) are provided with receiving holes, and the diameter of the receiving holes of the first adjusting plate (303) and the second adjusting plate (304) is smaller than that of the shielding mesh (2).

4. The wireless radio frequency remote transmission acquisition device for preventing signal interference according to claim 2, characterized in that: The drive gear (305) and driven gear (306) mesh with each other, and the finned heat sink (307) is located inside the acquisition housing (4). The drive motor (301) is a micro stepper motor. The finned heat sink (307) has a wave-shaped structure and is located at the heat dissipation port of the receiver body (5).

5. The wireless radio frequency remote transmission acquisition device for preventing signal interference according to claim 1, characterized in that: The isolation plate (10) adopts a double-layer metal sandwich insulation layer structure, which divides the inside of the acquisition shell (4) into a radio frequency signal processing area and a power management area.

6. The wireless radio frequency remote transmission acquisition device for preventing signal interference according to claim 1, characterized in that: The inner wall of the metal shield (1) is coated with conductive paint. The conductive paint and the metal shield (1) are connected to the external grounding electrode through a grounding wire. The first interface (6), the second interface (7) and the third interface (8) are all covered with metal shielding sleeves. The metal shielding sleeves and the metal shield (1) are electrically connected by welding.

7. The wireless radio frequency remote transmission acquisition device for preventing signal interference according to claim 1, characterized in that: A shock-absorbing rubber pad is provided between the acquisition shell (4) and the metal shield (1), and a threaded hole is provided on the fixing plate (9), which is fixedly connected to the receiver body (5) by screws.

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