Non-line-of-sight microwave device based on MIMO technology

Abstract

The application discloses a non-line-of-sight microwave device based on MIMO technology, which comprises a mounting base, a communication processing module arranged in the mounting base, the communication processing module being configured to process multiple signals through MIMO technology, a base station base located above the mounting base, a lifting mechanism connected between the mounting base and the base station base, an adjusting platform arranged on the base station base, a signal antenna arranged on the adjusting platform and in communication connection with the communication processing module, a posture adjusting mechanism arranged between the base station base and the adjusting platform and connected with the lifting mechanism, and a linkage mechanism, which compensates the physical posture of the antenna to an optimal pitch angle when reaching the highest deployment position, and still can reliably operate in the wild or under extremely severe weather, so that the MIMO antenna array can be aligned with the best non-line-of-sight reflection or diffraction path in the initial chain building stage.

Description

Technical Field

[0001] This invention relates to the field of mobile communication base stations, and in particular to a non-line-of-sight microwave device based on MIMO technology. Background Technology

[0002] Microwave communication, especially high-frequency communication, is a key technology to meet the high-capacity demands of future networks. Due to its ability to provide extremely high transmission bandwidth and capacity, it has become one of the key technologies for fifth-generation mobile communication and future networks in scenarios such as fixed wireless access and wireless backhaul. Non-line-of-sight microwave communication equipment based on MIMO technology plays a crucial role in emergency networking in the field. In non-line-of-sight environments, microwave signals are highly dependent on the reflection and diffraction of obstacles, which places stringent requirements on the spatial beam pointing and diversity gain of base station antenna arrays. Existing MIMO microwave base stations mostly use lifting masts to raise the antenna height, which has significant limitations in mobile deployment in the field. Large-size, high-gain antennas have extremely high wind resistance when moving, which seriously restricts the mobility of base stations. Traditional methods of pre-disassembly or flat placement result in excessively long activation times in the field and cannot automatically adjust the attitude of the antenna module after lifting or lowering. Before the base station establishes a link, it is impossible to achieve fast and low-power physical attitude optimization. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is that the excessive wind resistance of mobile base stations when deployed in the field affects their mobility, and the antenna beam pointing cannot be adjusted synchronously with the altitude during the ascent and descent process, resulting in poor channel matching degree in non-line-of-sight space and limited communication performance.

[0004] The above-mentioned technical problems are solved by the following technical solution: This invention proposes a non-line-of-sight microwave device based on MIMO technology, comprising: The mounting base is equipped with a communication processing module, which is configured to process multiple signals using MIMO technology. A base station base is located above the mounting base; A lifting mechanism is connected between the mounting base and the base station base, and is used to drive the base station base to perform lifting movements; An adjustment platform is mounted on the base station base; A signal antenna is mounted on the adjustment platform and is communicatively connected to the communication processing module. An attitude adjustment mechanism is disposed between the base station base and the adjustment platform, and is connected to the lifting mechanism; During the process of driving the base station base to rise and fall, the lifting mechanism synchronously drives the adjustment platform and signal antenna to adjust their angles through the attitude adjustment mechanism, thereby optimizing the MIMO channel characteristics of the signal antenna.

[0005] In a preferred embodiment of the non-line-of-sight microwave device based on MIMO technology of the present invention: the lifting mechanism includes a driving mechanism, a first fixed seat, a second fixed seat, a hinge, and a linkage group. The first fixed seat is disposed on the mounting base, and the second fixed seat is disposed on the base station base. The hinge is connected between the first fixed seat and the second fixed seat through the linkage group. The linkage group includes a first link, a second link, a third link, and a fourth link. The driving mechanism is used to drive the second fixed seat to move up and down relative to the first fixed seat through the hinge.

[0006] In a preferred embodiment of the non-line-of-sight microwave device based on MIMO technology described in this invention: the hinge includes a middle hinge plate, an upper hinge plate, and a lower hinge plate. The first end of the upper hinge plate is hinged to the second fixed seat via a first connecting rod and a third connecting rod. The first end of the middle hinge plate is hinged to the second end of the upper hinge plate via a second connecting rod and a fourth connecting rod. The second end of the middle hinge plate is hinged to the first end of the lower hinge plate via a first connecting rod and a third connecting rod. The second end of the lower hinge plate is hinged to the first fixed seat via a second connecting rod and a fourth connecting rod. The upper hinge plate, the middle hinge plate, and the lower hinge plate achieve relative lifting and lowering movement through the cooperation of the first connecting rod, the second connecting rod, the third connecting rod, and the fourth connecting rod.

[0007] In a preferred embodiment of the non-line-of-sight microwave device based on MIMO technology described in this invention: the first and third connecting rods each consist of two symmetrically arranged rods, the second and fourth connecting rods each consist of two symmetrically arranged rods, and all connecting rods are of the same length. One of the first connecting rods has its first end hinged to the end of the upper hinge plate and its second end hinged to the middle of the second fixed base. The other first connecting rod has its first end hinged to the end of the lower hinge plate and its second end hinged to the middle of the middle hinge plate. Similarly, one of the second connecting rods has its first end hinged to the end of the upper hinge plate and its second end hinged to the middle of the middle hinge plate. The other second connecting rod has its first end hinged to the lower hinge plate. The end of the plate is hinged to the middle of the first fixed seat at the second end. The first end of one of the third connecting rods is hinged to the middle of the upper hinge plate, and the second end is hinged to the end of the second fixed seat. The first end of the other third connecting rod is hinged to the middle of the lower hinge plate, and the second end is hinged to the end of the middle hinge plate. The first end of one of the fourth connecting rods is hinged to the end of the middle hinge plate, and the second end is hinged to the middle of the upper hinge plate. The first end of the other fourth connecting rod is hinged to the end of the first fixed seat, and the second end is hinged to the middle of the lower hinge plate. The upper and lower hinge plates are symmetrically arranged about the middle hinge plate, and the second and first fixed seats are symmetrically arranged about the middle hinge plate.

[0008] In a preferred embodiment of the non-line-of-sight microwave device based on MIMO technology described in this invention: the first link, the second link, the third link, and the fourth link are hinged together by a connecting shaft. A first gear and a second gear meshing with each other are provided in the middle of the hinge. The first gear and the second gear are hinged to the middle of the hinge via the connecting shaft. The installation position of the first gear corresponds to the second link in the middle of the middle hinge plate, and the installation position of the second gear corresponds to the first link in the middle of the middle hinge plate. The installation position of the first gear also corresponds to the third link in the middle of the upper and lower hinge plates, and the installation position of the second gear also corresponds to the fourth link in the middle of the upper and lower hinge plates. The first gear and the second gear, through mutual meshing transmission, assist the lifting mechanism in lifting motion, thereby improving the stability of the lifting motion.

[0009] In a preferred embodiment of the non-line-of-sight microwave device based on MIMO technology of the present invention: the driving mechanism includes a synchronous turntable and a driving motor. The synchronous turntable is disposed in the mounting base. The synchronous turntable has a synchronous guide groove extending in a spiral shape. The outer periphery of the synchronous turntable is provided with transmission teeth. The output shaft of the driving motor is provided with a transmission gear. The transmission gear meshes with the transmission teeth. The mounting base is provided with a storage compartment. A telescopic protective cover is provided between the storage compartment and the base station base. A coil spring return pulley is provided in the storage compartment. The coil spring return pulley is connected to the attitude adjustment mechanism through a connecting rope.

[0010] In a preferred embodiment of the non-line-of-sight microwave device based on MIMO technology of the present invention: it further includes a sliding sleeve, which is sleeved on the synchronization turntable. A sliding seat is provided inside the sliding sleeve, and the sliding sleeve is slidably connected to the first fixed seat through the sliding seat. A linkage rod is provided on the sliding sleeve, and the linkage rod is slidably engaged in the synchronization guide groove. A guide groove plate is provided on the sliding sleeve, and a guide rod is slidably engaged in the guide groove plate. One end of the guide rod is fixedly connected to the second connecting rod. The synchronization turntable drives the sliding sleeve to move up and down through the cooperation of the synchronization guide groove and the linkage rod. The sliding sleeve pushes the second connecting rod to move through the guide groove plate and the guide rod, so as to realize the lifting mechanism.

[0011] In a preferred embodiment of the non-line-of-sight microwave device based on MIMO technology of the present invention: a sliding groove is provided in the sliding sleeve, a third guide block is slidably disposed in the sliding groove, the sliding seat is fixedly connected to the first fixed seat through a fixed shaft, the sliding sleeve slides with the sliding seat through the sliding groove, a limit groove is provided on the sliding seat, and a limit stop is provided at the end of the sliding seat away from the sliding sleeve.

[0012] In a preferred embodiment of the non-line-of-sight microwave device based on MIMO technology of the present invention: a receiving slot is provided on the adjustment platform; the adjustment platform is hinged to the base station base via a connecting shaft; a protrusion is provided at the end of the adjustment platform; a signal antenna is provided in the receiving slot; the signal antenna includes an array module and an outer protective cover covering the array module; a guide ring is provided on the array module; a first slider is provided on the guide ring; a first connector is provided between the first slider and the receiving slot; and the array module is connected to the attitude adjustment mechanism via a second connector.

[0013] In a preferred embodiment of the non-line-of-sight microwave device based on MIMO technology of the present invention: the attitude adjustment mechanism includes a rotating sleeve and a linkage rod. A rotating linkage rod is disposed on the outer side of the rotating sleeve. The rotating sleeve is movably connected to the linkage rod via the rotating linkage rod. A third connector is disposed on the linkage rod. A second slider is disposed on the third connector. A sliding groove is disposed within the second slider. The sliding groove is disposed on the outer side of the receiving slot. An antenna connecting plate is disposed within the receiving slot. A rotating gear is disposed on the antenna connecting plate. The second connector is hinged to the rotating gear. An adjusting gear meshes with the rotating gear. The adjusting gear is connected to the output of a second motor. The rotating sleeve has an output shaft, and a mounting base is provided between it and the base station base. A telescopic rod is provided inside the rotating sleeve. The telescopic rod has a positioning hole and a linkage plate. The linkage plate is connected to a connecting rope. The side wall of the telescopic rod has a limiting guide groove extending along its axial direction and a spiral guide groove extending spirally. A first guide block and a second guide block are provided inside the rotating sleeve. The second guide block is slidably inserted in the limiting guide groove to limit the circumferential rotation of the telescopic rod. The first guide block is slidably inserted in the spiral guide groove. During the linear axial movement of the telescopic rod, the rotating sleeve is driven to rotate relative to the base station base through the cooperation of the spiral guide groove and the first guide block.

[0014] The beneficial effects of this invention are as follows: This solution, through a linkage mechanism, compensates the antenna's physical attitude to the optimal pitch angle when it reaches the highest deployment position, and can still operate reliably in the field or in extreme weather conditions, ensuring that the MIMO antenna array can be aligned with the optimal non-line-of-sight reflection or diffraction path in the initial link establishment stage. When the base station of this invention is moved, the antenna module is in a low-position storage state, which reduces wind resistance and meets the requirements of high mobility. After arriving at the field site, it can be raised and lowered directly, and the height increase and beam pointing alignment are completed simultaneously. No manual climbing intervention is required, which shortens the base station commissioning time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein: Figure 1 A schematic diagram of the overall structure of the present invention is shown; Figure 2 A schematic diagram of the working state structure of the present invention is shown; Figure 3 A cross-sectional structural schematic diagram of the present invention is shown; Figure 4 A schematic diagram of the unfolded structure of the attitude adjustment mechanism of the present invention is shown; Figure 5 An enlarged structural schematic diagram of point A in this invention is shown; Figure 6 A cross-sectional structural schematic diagram of the rotating sleeve and telescopic rod of the present invention is shown; Figure 7 A schematic diagram of the internal structure of the mounting base of the present invention is shown; Figure 8 A schematic diagram of the internal structure of the storage compartment of the present invention is shown; Figure 9 A schematic diagram of the overall structure of the lifting mechanism of the present invention is shown. Figure 1 ; Figure 10 A schematic diagram of the overall structure of the lifting mechanism of the present invention is shown. Figure 2 ; Figure 11 A schematic diagram of the unfolded state of the lifting mechanism of the present invention is shown; Figure 12 A schematic diagram of the connection structure of the lifting mechanism of the present invention is shown. Figure 1 ; Figure 13 A schematic diagram of the connection structure of the lifting mechanism of the present invention is shown. Figure 2 ; Figure 14 A schematic diagram of the overall structure of the synchronous turntable of the present invention is shown; Figure 15 A schematic diagram of the disassembled structure of the sliding sleeve of the present invention is shown; Figure 16 A schematic diagram of the internal structure of the signal antenna of the present invention is shown. Detailed Implementation

[0016] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0017] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0018] Reference Figures 1 to 16 A non-line-of-sight microwave device based on MIMO technology includes a mounting base 20, which houses a communication processing module 27 configured to process multiple signals via MIMO technology. A base station base 10 is located above the mounting base 20. A lifting mechanism 40 is connected between the mounting base 20 and the base station base 10 to drive the base station base 10 to move vertically. An adjustment platform 11 is mounted on the base station base 10. A signal antenna 12 is mounted on the adjustment platform 11 and is communicatively connected to the communication processing module 27. An attitude adjustment mechanism is also included. The attitude adjustment mechanism 30 is located between the base station base 10 and the adjustment platform 11 and is connected to the lifting mechanism 40. During the lifting process of driving the base station base 10 to rise and fall, the lifting mechanism 40 synchronously drives the adjustment platform 11 and the signal antenna 12 to adjust their angles through the attitude adjustment mechanism 30. This is used to optimize the MIMO channel characteristics of the signal antenna 12 and is applied to scenarios such as non-line-of-sight microwave backhaul. This device mechanically couples the lifting motion with the antenna attitude adjustment, solving the problem that traditional devices require manual climbing to adjust the antenna pitch angle after lifting and falling, resulting in slow activation and poor non-line-of-sight channel matching.

[0019] Reference Figure 2 and Figures 7 to 15The lifting mechanism 40 includes a drive mechanism, a first fixed seat 41, a second fixed seat 42, a hinge 43, and a linkage group. The first fixed seat 41 is mounted on the mounting base 20, and the second fixed seat 42 is mounted on the base station base 10. The hinge 43 is connected between the first fixed seat 41 and the second fixed seat 42 via the linkage group. The linkage group includes a first link 44, a second link 45, a third link 46, and a fourth link 47. The drive mechanism drives the second fixed seat 42 to move up and down relative to the first fixed seat 41 via the hinge 43. The hinge 43 includes a middle hinge plate 431, an upper hinge plate 432, and a lower hinge plate 433. The first end of the upper hinge plate 432 is hinged to the second fixed seat 42 via the first link 44 and the third link 46. The first end of the middle hinge plate 431 is hinged to the second end of the upper hinge plate 432 via the second connecting rod 45 and the fourth connecting rod 47. The second end of the middle hinge plate 431 is hinged to the first end of the lower hinge plate 433 via the first connecting rod 44 and the third connecting rod 46. The second end of the lower hinge plate 433 is hinged to the first fixed seat 41 via the second connecting rod 45 and the fourth connecting rod 47. The upper hinge plate 432, the middle hinge plate 431, and the lower hinge plate 433 achieve relative lifting and lowering movement through the cooperation of the first connecting rod 44, the second connecting rod 45, the third connecting rod 46, and the fourth connecting rod 47. The first connecting rod 44 and the third connecting rod 46 each consist of two symmetrically arranged rods, and the second connecting rod 45 and the fourth connecting rod 47 each consist of two symmetrically arranged rods, and all connecting rods have the same length. One of the first connecting rods 44 has its first end hinged to the end of the upper hinge plate 432 and its second end hinged to the middle of the second fixed base 42. Another first connecting rod 44 has its first end hinged to the end of the lower hinge plate 433 and its second end hinged to the middle of the middle hinge plate 431. One of the second connecting rods 45 has its first end hinged to the end of the upper hinge plate 432 and its second end hinged to the middle of the middle hinge plate 431. Another second connecting rod 45 has its first end hinged to the end of the lower hinge plate 433 and its second end hinged to the middle of the first fixed base 41. One of the third connecting rods 46 has its first end hinged to the middle of the upper hinge plate 432 and its second end hinged to the end of the second fixed base 42. Another third connecting rod 46 has its first end hinged to the lower hinge plate 433 and its second end hinged to the middle of the middle hinge plate 431. The middle part of the hinge plate 433 has its second end hinged to the end of the middle hinge plate 431. The first end of one fourth connecting rod 47 is hinged to the end of the middle hinge plate 431, and its second end is hinged to the middle part of the upper hinge plate 432. The first end of another fourth connecting rod 47 is hinged to the end of the first fixed seat 41, and its second end is hinged to the middle part of the lower hinge plate 433. The upper hinge plate 432 and the lower hinge plate 433 are symmetrically arranged about the middle hinge plate 431. The second fixed seat 42 and the first fixed seat 41 are symmetrically arranged about the middle hinge plate 431. The first connecting rod 44, the second connecting rod 45, the third connecting rod 46, and the fourth connecting rod 47 are hinged through the connecting shaft 13. The middle part of the hinge member 43 is provided with a first gear 48 and a second gear 49 that mesh with each other.The first gear 48 and the second gear 49 are hinged to the middle of the hinge member 43 via the connecting shaft 13. The installation position of the first gear 48 corresponds to the second connecting rod 45 in the middle of the middle hinge plate 431, and the installation position of the second gear 49 corresponds to the first connecting rod 44 in the middle of the middle hinge plate 431. The installation position of the first gear 48 also corresponds to the third connecting rod 46 in the middle of the upper hinge plate 432 and the lower hinge plate 433, and the installation position of the second gear 49 also corresponds to the fourth connecting rod 47 in the middle of the upper hinge plate 432 and the lower hinge plate 433. The first gear 48 and the second gear 49 mesh with each other to assist the lifting mechanism 40 in lifting motion, thereby improving the stability of the lifting motion. Because the present invention adopts a multi-link topology structure, the first to... The fourth connecting rod consists of eight rods arranged symmetrically in two groups. During lifting, if the force on one side of the connecting rod is uneven or there are manufacturing errors, jamming can easily occur. Therefore, this invention innovatively incorporates a coaxially meshing first gear 48 and second gear 49 in the middle of the hinge 43. When one connecting rod drives the middle hinge plate 431 to move, the first gear 48 is forced to rotate via the connecting shaft 13. The first gear 48 then drives the second gear 49 to rotate in the opposite direction, thereby forcibly dragging the connecting rod on the other side to move synchronously. This eliminates the redundancy of degrees of freedom in the parallel movement of multiple connecting rods, ensuring that the upper hinge plate 432, middle hinge plate 431, and lower hinge plate 433 can only maintain absolutely parallel lifting, significantly improving the mechanism's anti-jamming ability and lifting stability in harsh outdoor environments. When the equipment is being moved or not in operation, the base station base 10 is in its lowest position and is stored in the mounting base 20. The signal antenna 12 on the adjustment platform 11 is stored in the storage slot 111. The outer protective cover 122 and the adjustment platform 11 are in a low wind resistance form, which greatly reduces wind resistance during movement and meets the requirements of high mobility. The storage compartment 21 inside the mounting base 20 is sealed to the base station base 10 through the telescopic protective cover 22 to prevent sand and rainwater from entering.

[0020] Reference Figure 3 and Figures 9 to 15The drive mechanism includes a synchronous turntable 25 and a drive motor 26. The synchronous turntable 25 is disposed within the mounting base 20. A spirally extending synchronous guide groove 251 is formed on the synchronous turntable 25. Transmission teeth 252 are provided on the outer periphery of the synchronous turntable 25. A transmission gear 261 is provided on the output shaft of the drive motor 26, and the transmission gear 261 meshes with the transmission teeth 252. A storage compartment 21 is provided within the mounting base 20. A telescopic protective cover 22 is provided between the storage compartment 21 and the base station base 10. A coil spring return pulley 23 is provided within the storage compartment 21. The coil spring return pulley 23 is connected to the attitude adjustment mechanism 30 via a connecting rope 24. The mechanism also includes a sliding sleeve 28, which is sleeved on the synchronous turntable 25. A sliding seat 411 is provided within the sliding sleeve 28, and the sliding sleeve 28 is slidably connected to the first fixed seat 41 via the sliding seat 411. A linkage rod 281 is provided on the sliding sleeve 28. The moving rod 281 is slidably engaged in the synchronous guide groove 251. The sliding sleeve 28 is provided with a guide groove plate 282. A guide rod 283 is slidably engaged in the guide groove plate 282. One end of the guide rod 283 is fixedly connected to the second connecting rod 45. The synchronous turntable 25 drives the sliding sleeve 28 to move up and down through the engagement of the synchronous guide groove 251 and the linkage rod 281. The sliding sleeve 28 pushes the second connecting rod 45 to move through the guide groove plate 282 and the guide rod 283, so as to realize the lifting mechanism 40. A sliding groove 284 is provided in the sliding sleeve 28. A third guide block 285 is slidably arranged in the sliding groove 284. The sliding seat 411 is fixedly connected to the first fixed seat 41 through the fixed shaft 412. The sliding sleeve 28 is slidably engaged with the sliding seat 411 through the sliding groove 284. A limit groove 413 is provided on the sliding seat 411. A limit stop block 414 is provided at the end of the sliding seat 411 away from the sliding sleeve 28. When a base station needs to be deployed, the drive motor 26 starts and meshes with the transmission gear 261 and the transmission gear 252 on the outer periphery of the synchronous turntable 25, driving the synchronous turntable 25 to rotate. When the synchronous turntable 25 rotates, the spiral synchronous guide groove 251 on its surface engages with the linkage rod 281 on the sliding sleeve 28, forcing the linkage rod 281 to move axially, thereby driving the sliding sleeve 28 to perform linear lifting and lowering motion. To ensure that the sliding sleeve 28 does not rotate circumferentially, the sliding groove 284 inside the sliding sleeve 28 slides linearly along the sliding seat 411 fixed on the first fixed seat 41. The third guide block 285 further enhances the smoothness of the sliding. The limiting groove 413 and the limiting stop block 414 provide hard limit protection for the upper and lower limits of lifting and lowering. When the sliding sleeve 28 lifts and lowers, the linear thrust is transmitted to the second link 45 of the lifting mechanism 40 through the cooperation of the guide groove plate 282 and the guide rod 283. During the process of the base station base 10 being lifted and raised by the link group, the base station base 10 and the mounting base... As the distance between 20 increases, the originally slack connecting rope 24 is tightened. The connecting rope 24 passes around the coil spring return pulley 23 in the storage compartment 21, converting the vertical lifting displacement into a horizontal pulling force. This pulls the linkage plate 354 of the attitude adjustment mechanism 30, which in turn pulls the telescopic rod 35 to retract and slide into the rotating sleeve 31. During the process of being pulled into the rotating sleeve 31, the telescopic rod 35 undergoes linear displacement. Since the side wall of the telescopic rod 35 is provided with a limiting guide groove 353, the second guide block 312 in the rotating sleeve 31 is engaged in the groove. This deprives the telescopic rod 35 of its rotational freedom, making it only able to retract linearly. At the same time, the side wall of the telescopic rod 35 is also provided with a spiral guide groove 352. The first guide block 311 in the rotating sleeve 31 is engaged in the spiral groove. When the telescopic rod 35 is forcibly pulled linearly and cannot rotate itself, the first guide block 311 is subjected to the reaction force of the side wall of the spiral guide groove 352, which will force the rotating sleeve 31 to rotate, thus realizing the conversion of linear displacement into rotational motion. When the rotating sleeve 31 rotates, the outer rotating link 32 pushes and pulls the linkage link 33. The second slider 332 on the linkage link 33 slides along the groove 333 on the outer side of the receiving slot 111, converting the swing of the linkage link 33 into the torque of pushing and pulling the antenna connecting plate 334. The antenna connecting plate 334 drives the signal antenna 12 to overcome gravity and flip and tilt in the receiving slot 111 with the connecting shaft 13 as the axis. At the moment when the base station base 10 rises to the highest point, the antenna also flips to the pre-calculated optimal initial elevation angle. After reaching the highest point, if further fine-tuning is needed to match the complex non-line-of-sight multipath environment, the second motor 336 starts, drives the adjustment gear 337, and drives the rotating gear 335 to perform small-range high-precision rotation fine-tuning. Combined with the feedback of the MIMO algorithm, the ultimate optimization of the physical layer beam pointing is achieved, maximizing the spatial diversity gain.

[0021] When in use, during equipment relocation or in non-working state, the base station base 10 is in its lowest position and stored in the mounting base 20. At this time, the signal antenna 12 on the adjustment platform 11 is stored in the storage slot 111. The outer protective cover 122 is flush with the adjustment platform 11 or has a low wind resistance shape, which greatly reduces the wind resistance during movement and meets the requirements of high mobility. The storage compartment 21 inside the mounting base 20 is sealed to the base station base 10 through the telescopic protective cover 22 to prevent sand and rainwater from entering. When the base station needs to be deployed, the drive motor 26 starts and meshes with the transmission gear 251 on the outer periphery of the synchronous turntable 25 to drive the synchronous turntable 25 to rotate. When the synchronous turntable 25 rotates, the spiral synchronous guide groove 251 on its surface engages with the linkage rod 281 on the sliding sleeve 28, forcing the linkage rod 281 to move axially, thereby driving the sliding sleeve 28 to make linear lifting and lowering motion. In order to ensure that the sliding sleeve 28 does not rotate circumferentially, the sliding groove 284 inside the sliding sleeve 28 slides linearly along the sliding seat 411 fixed on the first fixed seat 41. The third guide block 285 further enhances the smoothness of sliding, while the limiting groove 413 and the limiting stop block 414 provide hard limit protection for the upper and lower limits of lifting and lowering. When the sliding sleeve 28 is raised or lowered, the linear thrust is transmitted to the second connecting rod 45 of the lifting mechanism 40 through the cooperation of the guide groove plate 282 and the guide rod 283. During the process of the base station base 10 being lifted by the connecting rod group, the distance between the base station base 10 and the installation base 20 increases. At this time, the originally slack connecting rope 24 is tightened. The connecting rope 24 passes around the coil spring return pulley 23 in the storage compartment 21 and pulls the linkage plate 354 of the attitude adjustment mechanism 30, thereby pulling the telescopic rod 35 to retract and slide into the rotating sleeve 31. During the process of being pulled into the rotating sleeve 31, the telescopic rod 35 undergoes linear displacement. The side wall of the telescopic rod 35 is provided with a limiting guide groove 353. The second guide block 312 in the rotating sleeve 31 is stuck in the groove, which deprives the telescopic rod 35 of its rotational freedom, so that it can only retract linearly. Meanwhile, the telescopic rod 35 is also provided with a spiral guide groove 352 on its side wall. The first guide block 311 inside the rotating sleeve 31 is inserted into the spiral groove. When the telescopic rod 35 is forcibly pulled in a straight line and cannot rotate itself, the first guide block 311 is subjected to the reaction force of the side wall of the spiral guide groove 352, which will force the rotating sleeve 31 to rotate. When the rotating sleeve 31 rotates, the outer rotating link 32 pushes and pulls the linkage link 33. The second slider 332 on the linkage link 33 slides along the slide groove 333 on the outer side of the storage groove 111, converting the swing of the linkage link 33 into the torque of pushing and pulling the antenna connecting plate 334. The antenna connecting plate 334 drives the signal antenna 12 to overcome gravity and flip and tilt in the storage groove 111 with the connecting shaft 13 as the axis. At the moment when the base station base 10 rises to the highest point, the antenna also flips to the pre-calculated optimal initial elevation angle. Once the highest point is reached, if further fine-tuning is needed to match the complex non-line-of-sight multipath environment, the second motor 336 is started, driving the adjustment gear 337, which in turn drives the rotating gear 335 to perform small-range high-precision rotational fine-tuning.

[0022] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A non-line-of-sight microwave device based on MIMO technology, characterized by: include: The mounting base is equipped with a communication processing module, which is configured to process multiple signals using MIMO technology. A base station base is located above the mounting base; A lifting mechanism is connected between the mounting base and the base station base, and is used to drive the base station base to perform lifting movements; An adjustment platform is mounted on the base station base; A signal antenna is mounted on the adjustment platform and is communicatively connected to the communication processing module. An attitude adjustment mechanism is disposed between the base station base and the adjustment platform, and is connected to the lifting mechanism; During the process of driving the base station base to rise and fall, the lifting mechanism synchronously drives the adjustment platform and signal antenna to adjust their angles through the attitude adjustment mechanism, thereby optimizing the MIMO channel characteristics of the signal antenna.

2. The non-line-of-sight microwave device based on MIMO technology according to claim 1, characterized in that: The lifting mechanism includes a drive mechanism, a first fixed seat, a second fixed seat, a hinge, and a linkage assembly; The first fixing base is disposed on the mounting base, and the second fixing base is disposed on the base station base; The hinge is connected between the first fixed base and the second fixed base via a linkage assembly; The linkage group includes a first link, a second link, a third link, and a fourth link; The drive mechanism is used to drive the second fixed seat to move up and down relative to the first fixed seat through the hinge. 3.The MIMO technology based non-line-of-sight microwave device of claim 2, characterized in that: The hinge includes a middle hinge plate, an upper hinge plate, and a lower hinge plate; The first end of the upper hinge plate is hinged to the second fixed seat through the first connecting rod and the third connecting rod; The first end of the middle hinge plate is hinged to the second end of the upper hinge plate via the second link and the fourth link; The second end of the middle hinge plate is hinged to the first end of the lower hinge plate via the first link and the third link; The second end of the lower hinge plate is hinged to the first fixed seat through the second connecting rod and the fourth connecting rod; The upper hinge plate, middle hinge plate, and lower hinge plate achieve relative lifting and lowering motion through the cooperation of the first link, second link, third link, and fourth link.

4. The non-line-of-sight microwave device based on MIMO technology according to claim 3, characterized in that: The first and third links each consist of two symmetrically arranged links, the second and fourth links each consist of two symmetrically arranged links, and all links have the same length. One of the first connecting rods has its first end hinged to the end of the upper hinge plate and its second end hinged to the middle of the second fixed seat. The other first connecting rod has its first end hinged to the end of the lower hinge plate and its second end hinged to the middle of the middle hinge plate. One of the second connecting rods has its first end hinged to the end of the upper hinge plate and its second end hinged to the middle of the middle hinge plate. The other second connecting rod has its first end hinged to the end of the lower hinge plate and its second end hinged to the middle of the first fixed seat. One of the third connecting rods has its first end hinged to the middle of the upper hinge plate and its second end hinged to the end of the second fixed seat. The other third connecting rod has its first end hinged to the middle of the lower hinge plate and its second end hinged to the end of the middle hinge plate. One of the fourth links has its first end hinged to the end of the middle hinge plate and its second end hinged to the middle of the upper hinge plate. The other fourth link has its first end hinged to the end of the first fixed seat and its second end hinged to the middle of the lower hinge plate. The upper hinge plate and the lower hinge plate are symmetrically arranged about the middle hinge plate, and the second fixed seat and the first fixed seat are symmetrically arranged about the middle hinge plate.

5. The non-line-of-sight microwave device based on MIMO technology according to claim 4, characterized in that: The first link, the second link, the third link, and the fourth link are hinged together by a connecting pivot. The hinge member has a first gear and a second gear that mesh with each other in the middle, and the first gear and the second gear are hinged to the middle of the hinge member through the connecting shaft. The installation position of the first gear corresponds to the second connecting rod in the middle of the central hinge plate, and the installation position of the second gear corresponds to the first connecting rod in the middle of the central hinge plate. The installation position of the first gear also corresponds to the third connecting rod in the middle of the upper hinge plate and the lower hinge plate, and the installation position of the second gear also corresponds to the fourth connecting rod in the middle of the upper hinge plate and the lower hinge plate. The first gear and the second gear mesh with each other to assist the lifting mechanism in lifting motion, thereby improving the stability of the lifting motion.

6. The non-line-of-sight microwave device based on MIMO technology according to claim 2, characterized in that: The drive mechanism includes a synchronous turntable and a drive motor; The synchronous turntable is disposed within the mounting base, and the synchronous turntable has a synchronous guide groove extending in a spiral shape, and the outer periphery of the synchronous turntable is provided with transmission teeth. The output shaft of the drive motor is provided with a transmission gear, and the transmission gear meshes with the transmission teeth. The mounting base is equipped with a storage compartment, and a telescopic protective cover is provided between the storage compartment and the base station base. The storage compartment is equipped with a coil spring return pulley, which is connected to the attitude adjustment mechanism through a connecting rope.

7. The non-line-of-sight microwave device based on MIMO technology according to claim 6, characterized in that: It also includes a sliding sleeve, which is fitted onto the synchronous turntable; The sliding sleeve is provided with a sliding seat, and the sliding sleeve is slidably connected to the first fixed seat through the sliding seat; The sliding sleeve is provided with a linkage rod, which is slidably engaged in the synchronous guide groove. The sliding sleeve is provided with a guide groove plate, and a guide rod is slidably fitted inside the guide groove plate. One end of the guide rod is fixedly connected to the second connecting rod. The synchronous turntable drives the sliding sleeve to move up and down through the cooperation of the synchronous guide groove and the linkage rod. The sliding sleeve pushes the second connecting rod to move through the guide groove plate and the guide rod, so as to realize the lifting mechanism's lifting and lowering.

8. The non-line-of-sight microwave device based on MIMO technology according to claim 7, characterized in that: The sliding sleeve has a sliding groove, and a third guide block is slidably disposed in the sliding groove; The sliding seat is fixedly connected to the first fixed seat via a fixed shaft, and the sliding sleeve is slidably engaged with the sliding seat via the sliding groove; The sliding seat has a limit groove, and a limit stop is provided at the end of the sliding seat away from the sliding sleeve.

9. The non-line-of-sight microwave device based on MIMO technology according to claim 1, characterized in that: The adjustment platform is provided with a storage slot, and the adjustment platform is hinged to the base station base via a connecting shaft. The end of the adjustment platform is provided with a protrusion. The storage slot is equipped with a signal antenna, which includes an array module and an outer protective cover covering the array module. The array module is provided with a guide ring, the guide ring is provided with a first slider, the first slider is provided with a first connector between it and the storage slot, and the array module is connected to the attitude adjustment mechanism through a second connector.

10. The non-line-of-sight microwave device based on MIMO technology according to claim 9, characterized in that: The attitude adjustment mechanism includes a rotating sleeve and a linkage. The rotating sleeve is provided with a rotating linkage on its outer side, and the rotating sleeve is movably connected to the linkage through the rotating linkage. The linkage is provided with a third connector, the third connector is provided with a second slider, the second slider is provided with a sliding groove, and the sliding groove is located on the outside of the storage groove; An antenna connecting plate is provided inside the storage slot. A rotating gear is provided on the antenna connecting plate. The second connector is hinged to the rotating gear. An adjusting gear is meshed on the rotating gear. The adjusting gear is connected to the output shaft of the second motor. An installation base is provided between the rotating sleeve and the base station base. A telescopic rod is provided inside the rotating sleeve. The telescopic rod is provided with a positioning hole and a linkage plate. The linkage plate is connected to a connecting rope. The telescopic rod has a limiting guide groove extending along its axial direction and a spiral guide groove extending spirally. The rotating sleeve is provided with a first guide block and a second guide block. The second guide block is slidably inserted into the limiting guide groove to restrict the circumferential rotation of the telescopic rod, and the first guide block is slidably inserted into the spiral guide groove to drive the rotating sleeve to rotate relative to each other through the cooperation of the spiral guide groove and the first guide block during the axial linear movement of the telescopic rod.

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