OTA test darkroom integrated with environment simulation function

Abstract

The utility model provides an OTA test darkroom integrated with an environment simulation function, which comprises a darkroom body, a test mechanism for placing an object to be tested is arranged in the middle of the inner side of the darkroom body, an adjusting mechanism is arranged on the inner side of the darkroom body, the adjusting mechanism is distributed in the darkroom body in a mirror image manner, and an antenna mechanism for testing the object to be tested is arranged in the middle of the adjusting mechanism; the adjusting mechanism comprises electric guide rails, adjusting plates and mounting arc-shaped plates, the electric guide rails are arranged at the top and the bottom of the inner side of the darkroom body in a mirroring mode, the adjusting plates are arranged on the sides, away from the darkroom body, of the adjusting plates, and the adjusting plates and the electric guide rails are clamped and slide. According to the utility model, the adjusting mechanism controls the antenna mechanism to move horizontally, and cooperates with the antenna main body in the antenna mechanism to lift and rotate above the mounting arc-shaped plate, so that the antenna main body can be adjusted and tested in multiple directions when testing an object to be tested, the multipath test of the antenna main body is facilitated, and the test efficiency is improved. And complex multipath propagation simulation is realized.

Description

Technical Field

[0001] This utility model relates to the field of anechoic chamber technology, specifically to an OTA anechoic chamber with integrated environmental simulation function. Background Technology

[0002] OTA test chambers are used in mobile phone and mobile terminal testing, IoT device testing, and wireless communication module testing to provide a standard testing environment for the test items to evaluate their performance under different frequency bands and different communication protocols.

[0003] In OTA test chambers, the device under test (DUT) is typically placed on a test turntable, and signals are transmitted to the DUT via an antenna system. However, due to varying testing requirements for different DUTs, it is necessary to simulate the test environment. The purpose of multipath testing is to simulate the multipath effects in a real-world environment, evaluating the anti-interference capability, signal processing capability, and system stability and reliability of wireless devices in such complex environments. This allows for the optimization of device algorithms, modulation / demodulation methods, and antenna design, thereby improving the device's performance in practical applications. However, the antennas in OTA test chambers are often difficult to adjust, which hinders the simulation of different signal transmission and reception scenarios and makes it difficult to achieve complex multipath propagation simulations.

[0004] In summary, there is a need for an OTA testing darkroom that facilitates the simulation of testing environments. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an OTA testing anechoic chamber with integrated environmental simulation functions, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An OTA test anechoic chamber with integrated environmental simulation function includes an anechoic chamber body, a test mechanism for placing the test object is provided in the middle of the inner side of the anechoic chamber body, an adjustment mechanism is provided in the inner side of the anechoic chamber body, the adjustment mechanism is mirror-distributed inside the anechoic chamber body, and an antenna mechanism for testing the test object is provided in the middle of the adjustment mechanism.

[0008] The adjustment mechanism includes an electric guide rail, an adjustment plate, and a mounting arc plate. The electric guide rail is mirror-mounted at the top and bottom of the inner side of the anechoic chamber body. The adjustment plate is located on the side of the adjustment plate away from the anechoic chamber body. The adjustment plate engages and slides with the electric guide rail. The mounting arc plate is fixedly mounted on the side of the adjustment plate. The mounting arc plate has an arc-shaped structure and passes through the middle of the antenna mechanism. The antenna mechanism engages and slides with the mounting arc plate.

[0009] Furthermore, the antenna mechanism includes a connecting box, a second motor, a moving wheel, an antenna body, and a third motor. The connecting box engages and slides with the moving wheel. The connecting box has a moving wheel inside that contacts the mounting arc plate. The second motor is located on the outside of the connecting box. The antenna body is located at the end of the connecting box. The antenna body engages and rotates with the connecting box. The third motor is located on the side of the end of the connecting box.

[0010] Furthermore, the darkroom body has a door in the middle, and ventilation pipes are provided in the middle of the door and on both sides of the darkroom body. The ventilation pipes are distributed in a mirror image.

[0011] Furthermore, the darkroom body is equipped with electric fans inside, and multiple sets of electric fans are arranged opposite each other inside the darkroom body.

[0012] Furthermore, the testing mechanism includes a base, a mounting box, a motor, and a testing platform. The base is fixedly located at the bottom of the inner side of the darkroom body, the mounting box is located on the top surface of the base, the motor is located in the middle of the mounting box, and the testing platform is located at the output end of the motor.

[0013] Furthermore, the test bench has movable slots arranged in a ring, with a movable rod in the middle of each slot. The movable rod engages with the test bench and rotates. The end of the movable rod has a movable torque, and the middle of the movable rod has a movable block that is threadedly connected to the movable rod. The top surface of the movable block has a positioning block that engages with the movable slot and slides.

[0014] This invention provides an OTA testing anechoic chamber with integrated environmental simulation functionality. Compared with existing technologies, it has the following advantages:

[0015] The antenna mechanism is controlled to move horizontally by adjusting the mechanism. The antenna body in the antenna mechanism moves up and down and rotates above the mounting arc plate. This allows the antenna body to be adjusted and tested from multiple directions when testing the object under test. This is beneficial for the antenna body to perform multipath testing and realize complex multipath propagation simulation.

[0016] By moving multiple positioning blocks above the test platform within the testing mechanism, a fixed-size area can be positioned for the test object according to its shape. This ensures that the test object can be accurately placed in its original position when it is tested again, preventing inaccurate electromagnetic wave signals due to placement deviations, which could affect the repeatability and accuracy of the test results. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This invention provides a schematic diagram of the structure of an OTA test anechoic chamber with integrated environmental simulation function.

[0019] Figure 2 A schematic diagram of the adjustment mechanism of this utility model is shown;

[0020] Figure 3 A schematic diagram of the testing mechanism of this utility model is shown;

[0021] Figure 4 A schematic diagram of the antenna mechanism of this utility model is shown;

[0022] The diagram shows: 1. Darkroom body; 11. Chamber door; 12. Ventilation duct; 2. Electric fan; 3. Testing mechanism; 31. Base; 32. Mounting box; 33. Motor 1; 34. Testing platform; 35. Movable slot; 36. Movable rod; 37. Movable block; 38. Positioning block; 39. Movable torque; 4. Adjustment mechanism; 41. Electric guide rail; 42. Adjustment plate; 43. Mounting arc plate; 5. Antenna mechanism; 51. Connecting box; 52. Motor 2; 53. Moving wheel; 54. Antenna body; 55. Motor 3. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Example 1: To solve the technical problems in the background art, the following OTA test anechoic chamber with integrated environment simulation function is provided:

[0025] Combination Figures 1-4As shown, the present invention provides an OTA test anechoic chamber with integrated environmental simulation function, including an anechoic chamber body 1. A test mechanism 3 for placing the test object is located in the middle of the inner side of the anechoic chamber body 1. An adjustment mechanism 4 is located inside the anechoic chamber body 1, mirror-distributed within the anechoic chamber body 1. An antenna mechanism 5 for testing the test object is located in the middle of the adjustment mechanism 4. The adjustment mechanism 4 includes an electric guide rail 41, an adjustment plate 42, and a mounting arc plate 43. The electric guide rail 41 is mirror-distributed at the top and bottom of the inner side of the anechoic chamber body 1. The adjustment plate 42 has an adjustment adjustment mechanism on the side opposite to the anechoic chamber body 1. Section plate 42, adjustment plate 42 and electric guide rail 41 are engaged and slide. Through the engagement and sliding of adjustment plate 42 and electric guide rail 41, mounting arc plate 43 can drive antenna mechanism 5 to move horizontally and adjust the test position of antenna mechanism 5. Mounting arc plate 43 is fixed on the side of adjustment plate 42. Mounting arc plate 43 has an arc structure and passes through the middle of antenna mechanism 5. Antenna mechanism 5 engages and slides with mounting arc plate 43. Under the engagement and sliding action of antenna mechanism 5 and mounting arc plate 43, it is convenient to vertically adjust antenna mechanism 5.

[0026] As an improvement to the above solution, the antenna mechanism 5 includes a connecting box 51, a second motor 52, a moving wheel 53, an antenna body 54, and a third motor 55. The connecting box 51 engages and slides with the moving wheel 53. The connecting box 51 has a moving wheel 53 inside that contacts the mounting arc plate 43. The connecting box 51 has a second motor 52 outside that provides power to the moving wheel 53. The connecting box 51 has an antenna body 54 at its end. The antenna body 54 engages and rotates with the connecting box 51. The connecting box 51 has a third motor 55 on its side at its end that provides power to lift and rotate the antenna body 54. Driven by the moving wheel 53, the antenna mechanism 5 can be raised and lowered outside the mounting arc plate 43. The second motor 52 drives the antenna body 54 to rotate, making it easier to adjust the angle and height of the antenna body 54 for testing the object under test, which is beneficial for the antenna body 54 to perform multipath testing.

[0027] In this embodiment, the dark chamber body 1 is provided with a door 11 in the middle, and a ventilation pipe 12 is provided in the middle of the door 11. Ventilation pipes 12 are provided on both sides of the dark chamber body 1. The ventilation pipes 12 are distributed in a mirror image. The setting of the ventilation pipes 12 facilitates the connection between the test dark chamber and the air conditioning system, and sends hot and cold air media into the dark chamber body 1 from multiple directions, so as to simulate different temperature environments to test the test object.

[0028] As an improvement to the above scheme, the darkroom body 1 is equipped with electric fans 2 inside. Multiple sets of electric fans 2 are arranged opposite each other inside the darkroom body 1. After simulating the temperature environment inside the darkroom body 1, the multiple sets of electric fans 2 drive the air to flow inside the darkroom body 1, reducing the inaccuracy of environmental simulation caused by temperature dead zones inside the darkroom body 1.

[0029] Example 2: Figures 1-4 As shown, based on the above embodiments, this embodiment further provides the following:

[0030] To facilitate retesting of the test object after testing in this dark testing chamber, this embodiment provides the following design:

[0031] The testing mechanism 3 includes a base 31, a mounting box 32, a motor 33, and a testing platform 34. The base 31 is fixedly installed at the bottom of the inner side of the dark chamber body 1. The mounting box 32 is provided on the top surface of the base 31. The motor 33 is provided in the middle of the mounting box 32. The testing platform 34 is provided at the output end of the motor 33. The motor 33 can drive the testing platform 34 to rotate and change the testing posture of the object under test.

[0032] As an improvement to the above solution, the test bench 34 has a movable groove 35 inside, which is arranged in a ring. A movable rod 36 is provided in the middle of the movable groove 35. The movable rod 36 engages and rotates with the test bench 34. A movable torque 39 is provided at the end of the movable rod 36. A movable block 37 is provided in the middle of the movable rod 36. The movable block 37 is threadedly connected to the movable rod 36. A positioning block 38 is provided on the top surface of the movable block 37. The movable block 37 engages and slides with the movable groove 35. Through the threaded connection between the movable block 37 and the movable rod 36, the operator can rotate the movable torque 39 to control the movement of the ring-arranged positioning blocks 38 along the movable groove 35. In this way, multiple positioning blocks 38 can form a fixed area for placing the test object, so that the test object can be accurately placed in its original position when placed again. This avoids the situation where the test object is deviated from its position, resulting in inaccurate electromagnetic wave signals received, which affects the repeatability and accuracy of the test results.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An OTA test anechoic chamber integrated with environmental simulation functionality, characterized by: Includes a darkroom body (1), a test mechanism (3) for placing the test object is provided in the middle of the inner side of the darkroom body (1), an adjustment mechanism (4) is provided in the inner side of the darkroom body (1), the adjustment mechanism (4) is mirror distributed inside the darkroom body (1), and an antenna mechanism (5) for testing the test object is provided in the middle of the adjustment mechanism (4). The adjustment mechanism (4) includes an electric guide rail (41), an adjustment plate (42), and an installation arc plate (43). The electric guide rail (41) is mirrored on the top and bottom of the inner side of the anechoic chamber body (1). The adjustment plate (42) is provided on the side away from the anechoic chamber body (1). The adjustment plate (42) engages and slides with the electric guide rail (41). The installation arc plate (43) is fixedly provided on the side of the adjustment plate (42). The installation arc plate (43) has an arc structure and passes through the middle of the antenna mechanism (5). The antenna mechanism (5) engages and slides with the installation arc plate (43).

2. The OTA test anechoic chamber integrated with environmental simulation function according to claim 1, characterized in that: The antenna mechanism (5) includes a connecting box (51), a second motor (52), a moving wheel (53), an antenna body (54), and a third motor (55). The connecting box (51) engages and slides with the moving wheel (53). The connecting box (51) has a moving wheel (53) inside that contacts the mounting arc plate (43). The connecting box (51) has a second motor (52) on the outside. The connecting box (51) has an antenna body (54) at the end. The antenna body (54) engages and rotates with the connecting box (51). The connecting box (51) has a third motor (55) on the side of the end.

3. The OTA test anechoic chamber integrated with environmental simulation functions according to claim 1, characterized in that: The darkroom body (1) has a door (11) in the middle, and ventilation pipes (12) are provided in the middle of the door (11) and on both sides of the darkroom body (1). The ventilation pipes (12) are distributed in a mirror image.

4. The OTA test anechoic chamber integrated with environmental simulation functions of claim 1, wherein: The darkroom body (1) is equipped with an electric fan (2), and multiple sets of electric fans (2) are arranged opposite each other on the inner side of the darkroom body (1).

5. The OTA test anechoic chamber integrated with environmental simulation functions according to claim 1, characterized in that: The testing mechanism (3) includes a base (31), a mounting box (32), a motor (33), and a test platform (34). The base (31) is fixedly installed on the bottom of the inner side of the darkroom body (1). The mounting box (32) is provided on the top surface of the base (31). The motor (33) is provided in the middle of the mounting box (32). The test platform (34) is provided at the output end of the motor (33).

6. The OTA test anechoic chamber integrated with environmental simulation functions according to claim 5, characterized in that: The test bench (34) has a movable groove (35) inside, which is arranged in a ring. A movable rod (36) is provided in the middle of the movable groove (35). The movable rod (36) engages with the test bench (34) and rotates. A movable torsion (39) is provided at the end of the movable rod (36). A movable block (37) is provided in the middle of the movable rod (36). The movable block (37) is threadedly connected to the movable rod (36). A positioning block (38) is provided on the top surface of the movable block (37). The movable block (37) engages with the movable groove (35) and slides.

Images