An anti-interference testing device for a base station receiver

Abstract

This utility model relates to the field of communication technology, specifically an anti-interference testing device for base station receivers. Addressing the problems of limited functionality and incomplete testing in existing testing equipment, this device comprises a testing chassis, an electromagnetic shielding box, a support mechanism, multiple signal generating mechanisms, and a driving mechanism. The electromagnetic shielding box is rotatably connected inside the testing chassis, and the driving mechanism drives its rotation to correspond to different signal generating mechanisms. The support mechanism is located at the bottom of the protective cover, stably placing and pressing down on the signal receiver body. The multiple signal generating mechanisms can emit different electromagnetic interference signals. Through the rotation of the electromagnetic shielding box, the device allows the signal receiver body to sequentially undergo various types of electromagnetic interference tests, ensuring comprehensive and accurate testing. It is suitable for testing the anti-interference performance of base station receivers.

Description

Technical Field

[0001] This utility model relates to the field of communication technology, and in particular to an anti-interference testing device for a base station receiver. Background Technology

[0002] In today's rapidly developing communication technology, base stations, as key nodes in communication networks, are of paramount importance in terms of performance stability and reliability. The base station receiver, as one of the core components of a base station, is responsible for receiving and processing signals from terminal devices, and its anti-interference capability directly affects the communication quality of the entire communication system.

[0003] With the increasing complexity of wireless communication environments, various sources of electromagnetic interference are constantly emerging. Electromagnetic radiation from other wireless communication devices, electronic and electrical equipment, and power lines can all interfere with the normal operation of base station receivers, leading to signal distortion, increased bit error rate, and communication interruptions. Therefore, conducting rigorous anti-interference tests on base station receivers to ensure their stable and reliable operation in complex electromagnetic environments has become a crucial step in the research and development and production of communication equipment.

[0004] Currently, although some devices exist on the market for testing the anti-interference performance of equipment, most of these devices suffer from problems such as limited functionality and incomplete testing. For example, some testing devices can only emit electromagnetic interference signals of fixed types and intensities, failing to simulate the diverse electromagnetic interference conditions in real-world environments.

[0005] To address the aforementioned problems, this technical solution proposes an anti-interference testing device for base station receivers. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-interference testing device for base station receivers.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An anti-interference testing device for a base station receiver, comprising:

[0009] The testing machine housing has a protective cover snapped onto the top opening of the testing machine housing;

[0010] An electromagnetic shielding box is rotatably connected to the testing machine housing. The opening side of the electromagnetic shielding box is fitted to the inner wall of the testing machine housing. A placement hole is provided on the top inner wall of the electromagnetic shielding box.

[0011] A support mechanism is provided at the bottom of the protective cover plate. The bottom of the support mechanism has the placement hole and extends into the electromagnetic shielding box. The signal receiver body to be detected is provided on the support mechanism.

[0012] Multiple signal generating mechanisms are installed at equal intervals on the inner side wall of the detection unit housing to emit different electromagnetic interference signals to electromagnetically interfere with the signal receiver body.

[0013] A drive mechanism is installed at the bottom of the detection housing. The top of the drive mechanism extends into the detection housing and connects to the bottom of the electromagnetic shielding box, and is used to drive the electromagnetic shielding box to rotate within the detection housing.

[0014] The driving mechanism drives the electromagnetic shielding box to rotate, so that the electromagnetic shielding box corresponds to the positions of the multiple signal generating mechanisms, so that the signal receiver body can receive different types of electromagnetic interference signals for anti-interference testing.

[0015] In one possible design, the support mechanism includes:

[0016] A pressure bar is rotatably connected to the bottom of the protective cover plate;

[0017] The sealing plate is slidably sleeved on the pressure rod and engaged with the placement hole;

[0018] Multiple rigid connecting rods are symmetrically and fixedly installed at the bottom of the sealing plate;

[0019] A support plate is fixedly installed at the bottom end of the plurality of rigid connecting rods, and the signal receiver body is placed on the support plate;

[0020] A pressure plate is fixedly installed at the bottom end of the pressure rod and is used to press and limit the signal receiver body.

[0021] When the signal receiver body is placed on the support plate, the protective cover is moved downward so that the support mechanism moves the signal receiver body into the electromagnetic shielding box, and the pressure plate presses down on the signal receiver body to keep its position stable.

[0022] In one possible design, a magnetic adsorption ring I, sleeved on the pressure rod, is fixedly installed at the bottom of the sealing plate, and a magnetic adsorption ring II, sleeved on the sealing plate, is fixedly installed at the top of the pressure plate, with the magnetic adsorption ring I and the magnetic adsorption ring II attracting each other.

[0023] When placing the signal receiver body, the pressure plate is positioned at a high level due to the attraction of the magnetic adsorption ring I and the magnetic adsorption ring II, thus avoiding obstruction of placement.

[0024] In one possible design, travel limit rods are slidably fitted at each of the four corners of the support plate, and the top and bottom ends of the travel limit rods are fixedly connected to the top inner wall and bottom inner wall of the electromagnetic shielding box, respectively.

[0025] The travel limit rod longitudinally slides and limits the support plate to accurately move the signal receiver body into the electromagnetic shielding box.

[0026] In one possible design, the signal generating mechanism includes:

[0027] The equipment mounting box is installed through and fixed to the inner side wall of the testing machine housing;

[0028] An electromagnetic interference signal generator is fixedly installed on one inner wall of the equipment mounting box;

[0029] When the electromagnetic shielding box is rotated to a position corresponding to the electromagnetic interference signal generator, the electromagnetic interference signal generator is activated to emit an electromagnetic interference signal to perform an interference test on the signal receiver body.

[0030] In one possible design, the drive mechanism includes:

[0031] A safety protection box is fixedly installed at the bottom of the testing machine housing;

[0032] A power drive motor is fixedly installed at the bottom of the safety protection box, and the output shaft of the power drive motor extends into the safety protection box;

[0033] Gear assembly, connected to the output shaft of the power drive motor;

[0034] A rotating shaft is fixedly installed at the bottom of the electromagnetic shielding box, and the bottom end of the rotating shaft extends into the safety protection box and is connected to the gear assembly;

[0035] Specifically, starting the power drive motor drives the rotating shaft to rotate via the gear assembly, thereby driving the electromagnetic shielding box to rotate.

[0036] In one possible design, the gear assembly includes:

[0037] The driven transmission gear is fixedly installed at the bottom end of the rotating shaft;

[0038] The active drive gear is fixedly mounted on the output shaft of the power drive motor;

[0039] The active drive gear meshes with the driven transmission gear to transmit power.

[0040] In one possible design, a positioning mechanism is also included, the positioning mechanism comprising:

[0041] A ring-shaped enclosure is fixedly fitted onto the housing of the testing machine.

[0042] Two mounting plates are symmetrically fixedly installed on the top of the protective cover plate;

[0043] Two positioning rods are slidably connected to the corresponding mounting plate;

[0044] An elastic tension spring is sleeved on the positioning rod and located on one side of the mounting plate. The two ends of the elastic tension spring are fixedly connected to the mounting plate and the positioning rod, respectively.

[0045] The ring-shaped enclosure has two symmetrically arranged insertion holes, and the positioning rod is movably engaged with the corresponding insertion hole to fix the protective cover plate.

[0046] In this application, when conducting anti-interference testing on the base station receiver, the receiver body is first placed on the support plate. At this time, the pressure plate is in a high position due to the attraction of magnetic adsorption rings I and II, and will not obstruct the placement of the receiver body. Then, the protective cover is moved downward, which drives the support mechanism to move downward. Under the sliding support and longitudinal limiting action of the travel limit rod, the support plate accurately moves the receiver body into the electromagnetic shielding box. After the support plate moves to the bottom inner wall of the electromagnetic shielding box, the protective cover continues to move downward, and the pressure rod drives the pressure plate downward to press and limit the receiver body, ensuring that the receiver body is stable and does not shift during subsequent testing. Then, the protective cover is engaged with the test chamber. At this time, the positioning rod corresponds to the insertion hole on the annular barrier. The positioning rod is released, and the elastic tension spring pulls the positioning rod to insert into the corresponding insertion hole. Inside the hole, the protective cover is stably connected to the testing machine housing. Then, the power drive motor is started. The output shaft of the power drive motor drives the active drive gear to rotate. The active drive gear meshes with the driven transmission gear, driving the rotating shaft to rotate. The rotating shaft drives the electromagnetic shielding box to rotate inside the testing machine housing. When the electromagnetic shielding box rotates to correspond with the position of the electromagnetic interference signal source generator in the equipment installation box of a certain signal generating mechanism, the power drive motor is stopped, and the electromagnetic interference signal source generator is started to emit an electromagnetic interference signal to interfere with the powered signal receiver, thereby testing the anti-interference performance of the signal receiver under this type of electromagnetic interference. After completing one type of electromagnetic interference test, the power drive motor is started again, and the electromagnetic shielding box is rotated to correspond with other signal generating mechanisms in the same way to perform anti-interference tests under different types of electromagnetic interference signals until all preset types of electromagnetic interference tests are completed.

[0047] Beneficial effects: In this utility model, the anti-interference testing equipment for a base station receiver, through the support mechanism, allows the receiver body to be placed on the support plate and powered on. Then, by moving the protective cover downwards, the receiver body can be moved into the electromagnetic shielding box. The pressure rod is rotatably connected to the protective cover, thus not affecting the normal rotation of the electromagnetic shielding box. After the support plate is moved to the bottom inner wall of the electromagnetic shielding box, the pressure rod continues to move downwards, driving the pressure plate downwards. This pressure plate then presses and limits the receiver body, ensuring that the receiver body remains in a stable position and does not shift when rotating to receive different signal interference tests.

[0048] In this utility model, the anti-interference testing equipment for a base station receiver, through a signal generating mechanism, can generate an electromagnetic interference signal by rotating the electromagnetic shielding box to a position corresponding to the electromagnetic interference signal generator. This allows the electromagnetic interference signal generator to be activated and emit an electromagnetic interference signal when the signal receiver is powered on, thereby interfering with the signal receiver and testing its anti-interference performance.

[0049] In this utility model, the anti-interference testing equipment for a base station receiver can drive a gear assembly to move by starting a power drive motor through a drive mechanism. This can drive a rotating shaft to rotate, and when the rotating shaft rotates, it can drive an electromagnetic shielding box to rotate. This allows the opening orientation of the electromagnetic shielding box to be adjusted, so that the signal receiver body can receive different types of electromagnetic signals and perform anti-interference testing on the signal receiver body.

[0050] This invention can solve the problems of limited functionality and incomplete testing of existing testing equipment. By rotating the electromagnetic shielding box, the signal receiver can be subjected to various types of electromagnetic interference tests emitted by different signal generating mechanisms in sequence. Furthermore, the pressure plate can ensure that its position is stable during testing, thus ensuring comprehensive and accurate testing. Attached Figure Description

[0051] Figure 1 This is a first-view three-dimensional structural schematic diagram of an anti-interference testing device for a base station receiver proposed in this utility model.

[0052] Figure 2 This is a two-dimensional schematic diagram of the anti-interference test equipment for a base station receiver proposed in this utility model from a second perspective.

[0053] Figure 3This is a three-dimensional schematic diagram of the internal structure of the test chamber of an anti-interference test device for a base station receiver proposed in this utility model.

[0054] Figure 4 This is a schematic diagram of the main cross-sectional structure of an anti-interference test device for a base station receiver proposed in this utility model;

[0055] Figure 5 This is a three-dimensional schematic diagram of the protective cover, sealing plate, bearing support plate, and power drive motor connection structure of an anti-interference testing device for a base station receiver proposed in this utility model.

[0056] In the diagram: 1. Detector housing; 2. Protective cover; 3. Circular enclosure; 4. Assembly mounting plate; 5. Positioning rod; 6. Elastic tension spring; 7. Electromagnetic shielding box; 8. Travel limit rod; 9. Sealing plate; 10. Rigid connecting rod; 11. Bearing support plate; 12. Signal receiver body; 13. Pressure rod; 14. Pressure plate; 15. Magnetic adsorption ring I; 16. Magnetic adsorption ring II; 17. Safety protection box; 18. Rotating shaft; 19. Driven transmission gear; 20. Power drive motor; 21. Active drive gear; 22. Equipment mounting box; 23. Electromagnetic interference signal generator. Detailed Implementation

[0057] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0058] In one embodiment: Refer to Figure 1-5 A testing device includes a testing housing 1 with an opening at the top, where a protective cover 2 is fitted. An annular barrier 3 is fixedly fitted to the side of the testing housing 1. Two mounting plates 4 are symmetrically fixed to the top of the protective cover 2. A slidable positioning rod 5 passes through the mounting plates 4, and an elastic tension spring 6 is fitted onto the positioning rod 5. The two ends of the elastic tension spring 6 are fixedly connected to one side of the mounting plate 4 and one end of the elastic tension spring 6 respectively via hooks. Two symmetrical insertion holes are formed on the annular barrier 3, and the positioning rod 5 is movably engaged with these holes. When the protective cover 2 is engaged with the testing housing 1, the positioning rod 5 aligns with the insertion hole. Releasing the positioning rod 5 allows the elastic tension spring 6 to pull the positioning rod 5 into the insertion hole, achieving a stable connection between the protective cover 2 and the testing housing 1.

[0059] An electromagnetic shielding box 7 is rotatably connected inside the testing machine housing 1. The opening side of the electromagnetic shielding box 7 is flush with the inner wall of the testing machine housing 1, and a placement hole is opened on the top inner wall. A support mechanism is provided at the bottom of the protective cover plate 2. The support mechanism includes a pressure rod 13 rotatably connected to the bottom of the protective cover plate 2. A sealing plate 9 is slidably sleeved on the pressure rod 13 and is engaged with the placement hole. Multiple rigid connecting rods 10 are symmetrically fixed at the bottom of the sealing plate 9. The bottom ends of the multiple rigid connecting rods 10 are fixed to the same bearing plate 11. The four corners of the bearing plate 11 are slidably fitted with travel limit rods 8. The top and bottom ends of the travel limit rods 8 are fixedly connected to the top and bottom inner walls of the electromagnetic shielding box 7, respectively. The signal receiver body 12 is placed on the bearing plate 11. A pressure plate 14 is fixed to the bottom end of the pressure rod 13. The pressure plate 14 is used to press and limit the signal receiver body 12. A magnetic adsorption ring I 15 is fixedly sleeved on the bottom of the sealing plate 9 and a magnetic adsorption ring II 16 is fixedly sleeved on the top of the pressure plate 14. The magnetic adsorption rings I 15 and II 16 attract each other. When the signal receiver body 12 is placed on the support plate 11, the pressure plate 14 is in a higher position due to the attraction of the magnetic adsorption rings I 15 and II 16, which does not obstruct the placement. The protective cover 2 is moved downward, which drives the support mechanism downward. Under the support and limit of the travel limit rod 8, the support plate 11 moves the signal receiver body 12 into the electromagnetic shielding box 7. After the support plate 11 contacts the bottom inner wall of the electromagnetic shielding box 7, the protective cover 2 continues to move downward. The pressure rod 13 drives the pressure plate 14 to move down and press down on the signal receiver body 12, ensuring that the position is stable and does not shift during the test. The pressure rod 13 is rotatably connected to the protective cover 2, which does not affect the rotation of the electromagnetic shielding box 7.

[0060] Multiple signal generating mechanisms are installed at equal intervals on the inner wall of the side of the tester housing 1. Each signal generating mechanism includes a device mounting box 22 that penetrates and is fixed to the inner wall of the side of the tester housing 1. An electromagnetic interference signal generator 23 is fixed to one inner wall of the device mounting box 22 to emit different electromagnetic interference signals to interfere with the signal receiver body 12.

[0061] This application can be used in the field of communication technology, or in other fields applicable to this application.

[0062] In another embodiment: Reference Figure 4-5Based on the above embodiments, an improvement is made to an anti-interference testing device for a base station receiver, which is applied to the field of communication technology. A drive mechanism is installed at the bottom of the test unit housing 1. The drive mechanism includes a safety protection box 17 fixed to the bottom of the test unit housing 1. A power drive motor 20 is fixed to the bottom of the safety protection box 17. The output shaft of the power drive motor 20 extends into the safety protection box 17 and connects to a gear assembly. The gear assembly includes a driven transmission gear 19 and a driving gear 21. The driven transmission gear 19 is fixed to the bottom end of a rotating shaft 18. The top end of the rotating shaft 18 is fixedly connected to the bottom of an electromagnetic shielding box 7, and the bottom end extends into the safety protection box 17 and connects to the gear assembly. The driving gear 21 is fixedly mounted on the output shaft of the power drive motor 20 and meshes with the driven transmission gear 19. The power drive motor 20 is started, and its output shaft drives the active drive gear 21 to rotate. This gear meshes with the driven transmission gear 19, driving the rotating shaft 18 to rotate, which in turn rotates the electromagnetic shielding box 7 within the testing unit housing 1. This allows the electromagnetic shielding box 7 to align with multiple signal generating mechanisms, enabling the signal receiver 12 to receive different types of electromagnetic interference signals for anti-interference testing. During testing, the power drive motor 20 is started, causing the electromagnetic shielding box 7 to rotate to align with the electromagnetic interference signal generator 23 within a specific equipment mounting box 22. The power drive motor 20 is then stopped, and the electromagnetic interference signal generator 23 is activated to emit electromagnetic interference signals, performing interference testing on the powered signal receiver 12. After completing one type of test, the power drive motor 20 is started again, causing the electromagnetic shielding box 7 to rotate to align with other signal generating mechanisms for testing different types of electromagnetic interference signals, until all preset types of tests are completed.

[0063] Multiple electromagnetic interference signal generators 23 can emit:

[0064] Co-channel interference: interference of unwanted signals of the same frequency to the received signal (such as overlapping areas covered by adjacent base stations on the same frequency).

[0065] Adjacent channel interference: Interference caused by signals from adjacent frequency bands leaking into the target frequency band;

[0066] Malicious interference: such as strong signals emitted by illegal signal transmitting devices (fake base stations, jammers);

[0067] Electromagnetic environmental interference: electromagnetic noise generated by industrial equipment, power systems, radar, etc.

[0068] Multipath interference: Interference formed by the superposition of signals after being reflected through different paths (especially in urban high-rise building environments).

[0069] Since the working principles and wiring methods of the signal receiver body 12, the power drive motor 20, and the electromagnetic interference signal generator 23 are all conventional techniques in this field, this specification will not elaborate further. Those skilled in the art should understand that the above components can be reasonably selected and configured based on existing technical specifications according to the specific application scenario requirements.

[0070] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An interference immunity test apparatus for a base station receiver, characterized by include: The detection machine housing (1) has a protective cover plate (2) snapped into the top opening of the detection machine housing (1). An electromagnetic shielding box (7) is rotatably connected inside the testing machine housing (1). The opening side of the electromagnetic shielding box (7) is attached to the inner wall of the testing machine housing (1). A placement hole is provided on the top inner wall of the electromagnetic shielding box (7). The support mechanism is located at the bottom of the protective cover (2). The bottom of the support mechanism passes through the placement hole and extends into the electromagnetic shielding box (7). The signal receiver body (12) to be detected is provided on the support mechanism. Multiple signal generating mechanisms are installed at equal intervals on the inner side wall of the detection machine housing (1) to emit different electromagnetic interference signals to electromagnetically interfere with the signal receiver body (12); A drive mechanism is installed at the bottom of the detection machine housing (1). The top of the drive mechanism extends into the detection machine housing (1) and is connected to the bottom of the electromagnetic shielding box (7). It is used to drive the electromagnetic shielding box (7) to rotate inside the detection machine housing (1). The driving mechanism drives the electromagnetic shielding box (7) to rotate, so that the electromagnetic shielding box (7) corresponds to the positions of the multiple signal generating mechanisms, so that the signal receiver body (12) can receive different types of electromagnetic interference signals for anti-interference testing.

2. The anti-interference testing equipment according to claim 1, characterized in that, The supporting institution includes: The pressure bar (13) is rotatably connected to the bottom of the protective cover plate (2); The sealing plate (9) is slidably sleeved on the pressure rod (13) and engaged with the placement hole; Multiple rigid connecting rods (10) are symmetrically fixedly installed at the bottom of the sealing plate (9); A support plate (11) is fixedly installed at the bottom end of a plurality of rigid connecting rods (10), and the signal receiver body (12) is placed on the support plate (11); A pressure plate (14) is fixedly installed at the bottom end of the pressure rod (13) and is used to press and limit the signal receiver body (12); When the signal receiver body (12) is placed on the support plate (11), the protective cover plate (2) is moved downward so that the support mechanism moves the signal receiver body (12) into the electromagnetic shielding box (7) and the pressure plate (14) presses the signal receiver body (12) to keep its position stable.

3. The anti-interference testing equipment according to claim 2, characterized in that, The bottom of the sealing plate (9) is fixedly installed with a magnetic adsorption ring I (15) sleeved on the pressure rod (13), and the top of the pressure plate (14) is fixedly installed with a magnetic adsorption ring II (16) sleeved on the sealing plate (9). The magnetic adsorption ring I (15) and the magnetic adsorption ring II (16) are attracted to each other. When placing the signal receiver body (12), the pressure plate (14) is in a high position under the attraction of the magnetic adsorption ring I (15) and the magnetic adsorption ring II (16) to avoid obstructing the placement.

4. The anti-interference testing equipment according to claim 2 or 3, characterized in that, The four corners of the bearing plate (11) are all slidably fitted with travel limit rods (8), and the top and bottom ends of the travel limit rods (8) are fixedly connected to the top inner wall and bottom inner wall of the electromagnetic shielding box (7), respectively. The travel limit rod (8) slides longitudinally to limit the bearing plate (11) so as to accurately move the signal receiver body (12) into the electromagnetic shielding box (7).

5. The anti-interference testing equipment according to claim 1, characterized in that, The signal generating mechanism includes: The equipment mounting box (22) is inserted through the inner side wall of the testing machine housing (1) and fixed. An electromagnetic interference signal generator (23) is fixedly installed on one inner wall of the equipment mounting box (22); When the electromagnetic shielding box (7) rotates to a position corresponding to the electromagnetic interference signal generator (23), the electromagnetic interference signal generator (23) is activated to emit an electromagnetic interference signal to conduct an interference test on the signal receiver body (12).

6. The anti-interference testing equipment according to claim 1, characterized in that, The drive mechanism includes: A safety protection box (17) is fixedly installed at the bottom of the testing machine housing (1); A power drive motor (20) is fixedly installed at the bottom of the safety protection box (17), and the output shaft of the power drive motor (20) extends into the safety protection box (17); A gear assembly is connected to the output shaft of the power drive motor (20); A rotating shaft (18) is fixedly installed at the bottom of the electromagnetic shielding box (7), and the bottom end of the rotating shaft (18) extends into the safety protection box (17) and is connected to the gear assembly; The power drive motor (20) is started and drives the rotating shaft (18) to rotate through the gear assembly, thereby driving the electromagnetic shielding box (7) to rotate.

7. The anti-interference testing equipment according to claim 6, characterized in that, The gear assembly includes: Driven transmission gear (19) is fixedly installed at the bottom end of the rotating shaft (18); The active drive gear (21) is fixedly mounted on the output shaft of the power drive motor (20); The active drive gear (21) meshes with the driven transmission gear (19) to transmit power.

8. The anti-interference testing equipment according to claim 1, characterized in that, It also includes a positioning mechanism, which comprises: A ring-shaped enclosure (3) is fixedly fitted onto the detection machine housing (1); Two mounting plates (4) are symmetrically fixed on the top of the protective cover plate (2); Two positioning rods (5) are slidably connected to the corresponding mounting plate (4); An elastic tension spring (6) is sleeved on the positioning rod (5) and located on one side of the mounting plate (4). The two ends of the elastic tension spring (6) are fixedly connected to the mounting plate (4) and the positioning rod (5) respectively. The ring-shaped enclosure (3) has two symmetrically arranged insertion holes, and the positioning rod (5) is movably engaged with the corresponding insertion hole to fix the protective cover plate (2).

Images