Dual-gps parameter module

Abstract

A dual GPS parameter module includes two GPS antennas, a support body, and an adjustment assembly. The support body is mounted on the base station antenna and supports the two GPS antennas. The adjustment assembly is mounted on the support body and is used to adjust the distance between the two GPS antennas. The adjustment assembly includes a drive mechanism and an adjustment arm. The axial length of the adjustment arm is adjustable, and it has a retracted state and an extended state. The adjustment arm has a first end and a second end along its axial direction. One of the two GPS antennas is mounted on the support body or the first end along the axial direction of the adjustment arm, and the other of the two GPS antennas is mounted on the second end along the axial direction of the adjustment arm. The drive mechanism drives the adjustment arm to switch between the retracted and extended states to change the distance between the two GPS antennas, realizing dynamic adjustment of the baseline length between the two GPS antennas. This breaks through the original fixed baseline limitation, significantly improves the measurement accuracy of parameters such as azimuth, and enhances the versatility of the dual GPS parameter module for applications with antennas of different sizes.

Description

Technical Field

[0001] This application relates to the field of mobile communication network infrastructure technology, and more particularly to a dual GPS parameter module. Background Technology

[0002] As mobile communication technology evolves towards 5G-Advanced and 6G, the accuracy of base station antenna engineering parameters (such as azimuth, downtilt angle, latitude and longitude) is crucial to network performance. Traditional manual measurement methods are inefficient and prone to large errors. Therefore, intelligent engineering parameter modules integrating dual GPS antennas have become a key technology for achieving remote automated high-precision measurement.

[0003] The dual-GPS parameter module calculates the azimuth angle by measuring the vector (i.e., the baseline) connecting the phase centers of the two GPS antennas. According to attitude measurement theory, the azimuth measurement error (δθ) is directly proportional to the baseline vector error (δp) and inversely proportional to the baseline length (L), i.e., δθ = δp / L. Therefore, increasing the baseline length is the most effective way to improve the accuracy of azimuth measurement.

[0004] However, existing dual GPS parameter modules have the following technical bottlenecks: 1) Fixed baseline limits accuracy: Existing modules typically integrate two GPS antennas with a fixed short baseline (e.g., <600mm) within the package. Due to the physical installation space of the base station antenna, it is impossible to further improve accuracy by increasing the baseline length.

[0005] 2) Poor structural rigidity and environmental adaptability: If a long fixed baseline design is adopted, complex external supports need to be installed, which will increase wind load, and the structure is prone to deformation or vibration in severe weather, introducing measurement errors. In addition, the engineering feasibility and aesthetics are poor.

[0006] 3) Lack of versatility: Fixed baseline modules cannot be adapted to base station antennas of different sizes. They may not be able to be installed on small antennas, and cannot realize their accuracy potential on large antennas.

[0007] Publicly available patent documents (such as CN120527607A) also reveal the limitations of fixed baseline solutions. Therefore, there is an urgent need for a solution that can overcome the physical limitations of baseline length within a limited installation space, while ensuring structural stability and environmental adaptability. Summary of the Invention

[0008] The purpose of this application is to provide a dual GPS parameter module that, without sacrificing structural stability and ease of installation, breaks through the original fixed baseline limitation, can be adapted to base station antennas of different sizes, and has high measurement accuracy and strong versatility.

[0009] The technical solution provided by this invention is as follows: A dual GPS parameter module, comprising: Two GPS antennas; The main support structure is mounted on the base station antenna and is used to support two GPS antennas. An adjustment component, mounted on the support body, is used to adjust the distance between the two GPS antennas; The adjustment assembly includes a drive mechanism and an adjustment arm. The axial length of the adjustment arm is adjustable, and it has a retracted state and an extended state. The adjustment arm has a first end and a second end in the axial direction. One of the two GPS antennas is mounted on the first end of the support body or the adjusting arm along the axial direction, and the other of the two GPS antennas is mounted on the second end of the adjusting arm along the axial direction. The drive mechanism is used to drive the adjusting arm to switch between the retracted state and the extended state to change the distance between the two GPS antennas.

[0010] In some implementations, the adjusting arm includes multiple sets of cross levers and two support rods; The cross pendulum includes a first pendulum and a second pendulum, with the first pendulum hinged to the center of the second pendulum at the center of its own axis; multiple sets of cross pendulums are arranged sequentially along an axis, and in two adjacent sets of cross pendulums, one end of the first pendulum in one cross pendulum is hinged to one end of the second pendulum in another cross pendulum. In the multiple sets of cross-arms, each of the cross-arms located at the two ends of the axial direction is hinged to a rod on the side that is far away from each other, and each rod is equipped with a GPS antenna.

[0011] In some embodiments, the support rod has a groove extending along its own axial direction; One of the first and second pendulum rods is hinged to one end of the support rod, and the other of the first and second pendulum rods is provided with a slider that slides in a groove.

[0012] In some embodiments, there are three sets of cross arms: a middle cross arm and end cross arms located on both sides. The first or second cross arm in the middle cross arm is driven to the power output end of the drive mechanism. The drive mechanism is a rotary motor installed inside the support body. It is used to control the rotation of the first or second swing arm in the middle cross swing arm, thereby driving the end cross swing component to move and changing the axial length of the adjusting arm.

[0013] In some embodiments, the first and second swing arms in the intermediate cross swing arms are both equipped with guide posts, and the support body has two arc-shaped grooves, in which the guide posts slide.

[0014] In some embodiments, the adjusting arm includes guide rods that are sequentially sleeved, with at least two guide rods, and the sequentially sleeved guide rods can extend and retract relative to each other along the axial direction, with the outermost guide rod being extendably mounted on the side wall of the support body. One of the two GPS antennas is mounted on the support body, and the other of the two GPS antennas is mounted on the innermost guide rod.

[0015] In some embodiments, the drive mechanism includes a drive motor, a lead screw, and a sleeve. The sleeve is mounted on the guide rod and is threadedly engaged with the lead screw. The drive motor is installed inside the support body and is used to drive the lead screw to rotate, thereby changing the axial position of the sleeve on the lead screw and thus changing the axial position of the guide rod.

[0016] In some embodiments, a slide rail is installed on the side wall of the support body, and the slide rail extends along the side wall of the support body in a direction away from the support body; an adjusting arm is slidably installed in the slide rail, one of the two GPS antennas is installed at the end of the slide rail away from the support body, and the other of the two GPS antennas is installed on the innermost guide rod. The drive mechanism is used to drive the adjusting arm to extend in the direction away from the slide rail.

[0017] In some embodiments, the adjusting arm includes a conveyor belt and a trolley mounted on the conveyor belt, one of the two GPS antennas is mounted on the trolley, and the other of the two GPS antennas is mounted on the support body. The drive mechanism includes a drive motor and two synchronous pulleys. The conveyor belt is mounted on the two synchronous pulleys. The drive motor drives the synchronous pulleys to rotate, and the synchronous pulleys drive the conveyor belt to move, thereby changing the position of the trolley.

[0018] In some implementations, the dual GPS parameter module also includes a control unit, integrated within the support body, for controlling the operation of the drive mechanism.

[0019] The technical advantages of this application are as follows: 1. In this application, by introducing an adjustment component into the dual GPS parameter module, the baseline length between the two GPS antennas can be adjusted, breaking through the original fixed baseline limitation. On the one hand, this solves the problem that the azimuth measurement accuracy cannot be further improved due to the fixed short baseline; on the other hand, it solves the problem that the original dual GPS parameter module could not flexibly adapt to base station antennas of different sizes, resulting in poor versatility. Moreover, in the non-operating state, the adjustment component can be adjusted to a retracted state, ensuring the structural stability and low wind resistance characteristics of the dual GPS parameter module under adverse weather conditions, thus enhancing its environmental adaptability.

[0020] 2. In this application, the adjusting arm includes three sets of cross-swing rods connected sequentially and support rods located on both sides of the axial direction of the three sets of cross-swing rods. The drive mechanism is integrated into the support body and is mounted on the cross-swing member located in the middle along with the support body. Two GPS antennas are respectively mounted on the two support rods. The adjusting arm and the GPS antennas on it can form a counterweight on both sides of the support body, making the overall structure more stable. In addition, the support body is also provided with an arc-shaped groove that can cooperate with the guide column on the middle cross-swing rod, further improving the operational stability of the product and solving the problems of insufficient structural rigidity, large wind load, and poor environmental adaptability caused by the long baseline design.

[0021] 3. In this application, a slide rail is installed on the side wall of the support body, and an adjusting arm is installed inside the slide rail. The adjusting arm includes guide rods that are sequentially nested and can extend and retract relative to each other. One of the two GPS antennas is installed on the innermost guide rod, and the other of the two GPS antennas is installed on the section of the slide rail away from the guide rod. The support body is located at the end of the slide rail away from the end where the GPS antenna is installed. At this time, the slide rail, adjusting arm, and GPS antenna can also form a counterweight on both sides of the support body, ensuring the stability of the overall structure. In addition, the slide rail also helps to improve the stability when the guide rods extend and retract, making the product run more stably and solving the problems of insufficient structural rigidity, large wind load, and poor environmental adaptability caused by long baseline design. Attached Figure Description

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments: Figure 1 This is a schematic diagram of the structure of the dual GPS parameter module provided in one embodiment of the present application in the folded state; Figure 2 This is a schematic diagram of the structure of the dual GPS parameter module provided in one embodiment of the present application in its fully deployed state; Figure 3 This is a schematic diagram of the dual GPS parameter module provided in another embodiment of this application in the collapsed state; Figure 4 This is a schematic diagram of the dual GPS parameter module provided in another embodiment of this application in its fully deployed state.

[0023] Explanation of icon numbers: 100. GPS antenna; 200. Support body; 210. Arc-shaped groove; 220. Slide rail; 300. Adjustment component; 311. Cross rocker arm; 3111. First rocker arm; 3112. Second rocker arm; 3113. Slider; 3114. Guide post; 312. Support rod; 3121. Slide groove; 313. Guide rod; 314. First end; 315. Second end; 321. Lead screw; 322. Sleeve. Detailed Implementation

[0024] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.

[0026] To keep the drawings concise, each drawing only schematically shows the parts relevant to this application, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0027] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various components of this application are relative rather than absolute. These descriptions are appropriate when these components are in the positions shown in the drawings. If the descriptions of the positions of these components change, these directional indications also change accordingly.

[0030] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] To address the problems of fixed baseline limiting accuracy, poor structural rigidity and environmental adaptability, and lack of versatility in existing dual GPS measurement modules, this application provides a dual GPS measurement module that aims to overcome the limitations of the original fixed baseline without sacrificing structural stability and ease of installation. This allows the baseline length of the dual GPS measurement module to be dynamically adjusted, thereby adapting to base station antennas of different sizes and improving measurement accuracy and versatility.

[0032] In one specific embodiment, see Figure 1 and Figure 4 The dual GPS module includes two GPS antennas 100, a support body 200, and an adjustment assembly 300. The support body 200 is mounted on the base station antenna or its support structure, for example, fixedly installed at a suitable position on the top or side of the base station antenna using a standard bracket, to support the two GPS antennas 100. The adjustment assembly 300 is mounted on the support body 200 and is used to adjust the distance between the two GPS antennas 100. The adjustment assembly 300 includes a drive mechanism and an adjustment arm. The axial length of the adjustment arm is adjustable, and it has a retracted state and an extended state. The adjustment arm has a first end 314 and a second end 315 axially. One of the two GPS antennas 100 is mounted on the support body 200 or the first end 314 axially on the adjustment arm, and the other of the two GPS antennas 100 is mounted on the second end 315 axially on the adjustment arm. The drive mechanism is used to drive the adjustment arm to switch between the retracted and extended states to change the distance between the two GPS antennas 100.

[0033] This embodiment introduces an adjustment component 300 to change the baseline from a fixed short length to an expandable long length. When high-precision engineering parameter measurements are required, the operator can activate the drive mechanism to gradually extend the adjustment arm from the retracted state to a suitable length. At this time, the physical distance (baseline length) between the two GPS antennas 100 also extends from the minimum value (e.g., 200 mm) in the retracted state to a preset optimal value (e.g., 800 mm or longer). On the one hand, the baseline changes from a fixed short length to an expandable long length. According to the formula δθ = δp / l, after the baseline is extended, the azimuth measurement error δθ is significantly reduced. The dual GPS engineering parameter module can thus obtain high-precision azimuth data, meeting the stringent requirements of high-order communication networks for engineering parameter accuracy. On the other hand, the dynamic adjustment of the baseline length allows the operator to flexibly adjust the physical distance between the two GPS antennas 100 according to actual measurement needs. This allows the same dual GPS engineering parameter module to flexibly adapt to base station antennas of different sizes and models, expanding the product's application range and reducing manufacturing and inventory costs.

[0034] After the measurement task is completed, the operator can reverse the drive structure to retract the adjusting arm until it returns to the retracted state, and the baseline length between the two GPS antennas 100 is shortened to its minimum. In this state, the entire module structure is compact, with a small windward area, and occupies almost no extra space, minimizing the impact on the antenna structure itself and environmental risks such as wind load and ice load, ensuring the structural stability and low wind resistance characteristics of the dual GPS parameter module under severe weather conditions.

[0035] In one example embodiment, see Figure 1 and Figure 2 The adjusting arm includes multiple sets of cross-arms 311 and two support rods 312. Each cross-arm 311 includes a first arm 3111 and a second arm 3112, with the first arm 3111 hinged to the center of the second arm 3112 at its axial direction. The multiple sets of cross-arms 311 are arranged sequentially along an axis, and in adjacent sets of cross-arms 311, one axial end of the first arm 3111 in one set is hinged to one axial end of the second arm 3112 in the other set. A support rod 312 is hinged to the side of each cross-arm 311 located at opposite ends of its axial direction. The two support rods 312 form the first end 314 and the second end 315 of the adjusting arm, respectively, and the two GPS antennas 100 are mounted on the two support rods 312.

[0036] In this embodiment, the adjusting arm adopts a structure in which multiple sets of cross swing rods 311 are hinged in sequence. An approximately parallelogram-shaped grid structure is formed between two adjacent sets of cross swing rods 311. By changing the relative angle between the first swing rod 3111 and the second swing rod 3112, the shape of the grid structure also changes. As the axial length of the grid structure changes, the axial length of the adjusting arm also changes, switching between the retracted state and the extended state.

[0037] Specifically, when the first pendulum 3111 and the second pendulum 3112 are almost perpendicular to the axis, the multiple sets of cross pendulums 311 fold and retract to a position parallel to the support body 200. At this time, the distance between the two GPS antennas 100 (i.e., the baseline length) is at its minimum. In this state, the overall structure of the module is very compact, with a small windward area, minimizing the impact on the mechanical structure and wind resistance of the antennas themselves. This greatly improves the safety and long-term reliability of the dual GPS parameter module in adverse weather conditions, making it suitable for daily standby periods when high-frequency, high-precision measurements are not required. When the first pendulum 3111 and the second pendulum 3112 are almost parallel to the axis, the multiple sets of cross pendulums 311 are fully extended. At this time, the distance between the two GPS antennas 100 (i.e., the baseline length) is at its maximum.

[0038] Specifically, the support rod 312 has a groove 3121 extending along its own axial direction. This groove 3121 is a rigid groove, and there can be one or more grooves 3121. One of the first swing rod 3111 and the second swing rod 3112 is hinged to one end of the support rod 312, and the other of the first swing rod 3111 and the second swing rod 3112 is provided with a slider 3113, which slides within the groove 3121. At this time, an approximately triangular grid structure is formed between the cross swing rod 311 and the support rod 312. Thanks to the structural design of the groove 3121, during the baseline length adjustment process, the support rod 312 will always remain in a state approximately perpendicular to the axis, forming an approximately triangular grid structure with the cross swing rod 311. The overall structure is more stable and less prone to shaking during the adjustment process.

[0039] Furthermore, there are three sets of cross-arms 311: a middle cross-arm 311 and two end cross-arms 311 located on both sides. The first arm 3111 or the second arm 3112 of the middle cross-arm 311 is driven and connected to the power output end of the drive mechanism via a linkage or other transmission method. The drive mechanism is a rotary motor, typically consisting of a micro servo motor or stepper motor and a set of reduction gears, installed within the support body 200. It controls the rotation of the first arm 3111 or the second arm 3112 of the middle cross-arm 311, thereby driving the end cross-arms to move, changing the axial length of the adjusting arm, and providing power for the extending and retracting of the adjusting arm. Preferably, when the rotary motor controls the rotation of the first arm 3111 or the second arm 3112, it can limit the first arm 3111 or the second arm 3112 to a certain angle so that the adjusting arm can be stably maintained at a suitable length during measurement tasks.

[0040] In this embodiment, by integrating the drive mechanism into the support body 200, it is beneficial to increase the weight of the support body 200. Then, by installing it on the middle cross swing arm 311, the support body 200 is located at the center of the entire dual GPS parameter module. At this time, the adjusting arm and the GPS antenna 100 on it can form a counterweight on both sides of the support body 200, which is more conducive to the stability of the overall structure.

[0041] Furthermore, both the first swing arm 3111 and the second swing arm 3112 in the intermediate cross swing arm 311 are equipped with guide posts 3114, and the support body 200 has two arc-shaped grooves 210, in which the guide posts 3114 slide. When the first swing arm 3111 and the second swing arm 3112 rotate under the drive of the drive mechanism, the guide posts 3114 run stably along the extension direction of the arc-shaped grooves 210, and the cross swing arm 311 is not prone to shaking during adjustment. The movement is smooth and precise, ensuring the operational stability of the product.

[0042] See Figure 3 and Figure 4 In addition to the design schemes of the adjustment component 300 provided in the above embodiments, in one example embodiment, the adjustment component 300 can also adopt a multi-stage telescopic guide rod 313 structure. For example, the adjustment arm includes guide rods 313 sequentially nested, with at least two guide rods 313. The sequentially nested guide rods 313 can be engaged with each other by a lead screw 321, a thread, or a precision slide rail 220 to achieve relative axial extension and contraction. The outermost guide rod 313 is telescopically mounted on the side wall of the support body 200. In this case, the end of the outermost guide rod 313 away from the protruding end of its inner guide rod 313 is the first end 314 of the adjustment arm, and the protruding end of the innermost guide rod 313 is the second end 315 of the adjustment arm. One of the two GPS antennas 100 is mounted on the support body 200, and the other of the two GPS antennas 100 is mounted on the innermost guide rod 313.

[0043] In this embodiment, the drive mechanism can change the length of the adjusting arm by controlling the extension and retraction of the inner guide rod 313 relative to the outer guide rod 313, thus switching it between a retracted state and an extended state. When all the sequentially fitted guide rods 313 are in a compact, closed state, the distance between the two GPS antennas 100 (i.e., the baseline length) is at its minimum. When all the sequentially fitted guide rods 313 are in a fully extended state, the distance between the two GPS antennas 100 (i.e., the baseline length) is at its maximum. The multi-stage retractable guide rod 313 structure, when fully extended, provides a significant extension of the baseline length, allowing for a substantial increase in baseline length within a limited storage space; when fully retracted, it is very compact, making it easy to carry and disassemble.

[0044] Specifically, the drive mechanism includes a drive motor, a lead screw 321, and a sleeve 322. The sleeve 322 is mounted on the guide rod 313 and is threadedly engaged with the lead screw 321. The drive motor is preferably a rotary motor, which is usually composed of a micro servo motor or a stepper motor and a set of reduction gears. It is installed in the support body 200 and is used to drive the lead screw 321 to rotate, change the axial position of the sleeve 322 on the lead screw 321, and thus change the axial position of the guide rod 313.

[0045] In actual production, the drive motor can drive the guide rods 313 to extend and retract in stages. Taking two guide rods 313 as an example, the drive motor drives the lead screw 321 to rotate forward, pushing the outermost guide rod 313 to extend relative to the support body 200. When the guide rod 313 reaches the end of its stroke, its internal mechanism (such as a nested lead screw or electromagnetic lock) will be triggered, continuing to push the second inner guide rod 313 to extend from the outermost guide rod 313 until it is fully extended. Conversely, the drive motor drives the lead screw 321 to rotate in reverse, first retracting the inner guide rod 313 into the outer guide rod 313, and then retracting the outer guide rod 313 back into the support body 200.

[0046] To improve the stability of the extension and retraction of the guide rod 313, in a preferred embodiment, a slide rail 220 is installed on the side wall of the support body 200, extending along the side wall of the support body 200 in a direction away from the support body 200. An adjusting arm is slidably mounted within the slide rail 220. One of the two GPS antennas 100 is mounted at the end of the slide rail 220 away from the support body 200, and the other of the two GPS antennas 100 is mounted on the innermost guide rod 313. A drive mechanism is used to drive the adjusting arm to extend in a direction away from the extension of the slide rail 220.

[0047] In this embodiment, the support body 200 is specifically positioned at the end of the slide rail 220 where the adjusting arm extends. The slide rail 220, the adjusting arm, and the GPS antenna 100 thus form a counterweight on both sides of the support body 200, ensuring the stability of the overall structure. In addition, the slide rail 220 also helps to improve the stability of the guide rod 313 during extension and retraction, significantly solving the problems of insufficient structural stiffness, large wind load, and poor environmental adaptability caused by the long baseline design.

[0048] In one example embodiment, the adjustment component 300 may also employ a belt drive structure (not shown). Specifically, the adjustment arm includes a conveyor belt and a trolley mounted on the conveyor belt. One of the two GPS antennas 100 is mounted on the trolley, and the other of the two GPS antennas 100 is mounted on the support body 200. The drive mechanism includes a drive motor and two synchronous pulleys. The conveyor belt is mounted on the two synchronous pulleys. The drive motor drives the synchronous pulleys to rotate, and the synchronous pulleys drive the conveyor belt to move, thereby changing the position of the trolley and achieving stepless adjustment of the baseline length. The adjustment method using synchronous pulley drive is more conducive to the smooth operation of the dual GPS parameter modules and has lower noise, enabling a more flexible layout.

[0049] Furthermore, an axially extending guide rail can be provided, allowing the trolley to move smoothly along the extension direction of the guide rail under the drive of the conveyor belt, resulting in a more stable overall structure. Of course, in actual production, steel cables can also be used instead of conveyor belts as the transmission medium; this is not a limitation and is within the scope of protection of this application.

[0050] In all the above embodiments, the dual GPS parameter module may further include a control unit, which is integrated within the support body 200 to control the operation of the drive mechanism and support operators to remotely control the retraction and extension of the adjustment arm, thereby realizing a fully automated high-precision measurement process and improving operation and maintenance efficiency.

[0051] Specifically, the control unit includes a processor and a communication module. The communication module is used to remotely receive control commands (such as "expand," "retract," and target baseline length values) from the monitoring center and transmit the operating parameter data back. The processor is used to parse the control commands, issue instructions to the drive mechanism, and control the movement of the adjusting arm, thereby precisely adjusting the baseline length between the two GPS antennas 100.

[0052] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0053] It should be noted that the above embodiments can be freely combined as needed. The above are merely preferred embodiments of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A dual GPS parameter module, characterized in that, include: Two GPS antennas; The supporting body is installed on the base station antenna and is used to carry the two GPS antennas; An adjustment component, installed on the support body, is used to adjust the distance between the two GPS antennas; The adjustment assembly includes a drive mechanism and an adjustment arm. The axial length of the adjustment arm is adjustable, and it has a retracted state and an extended state. The adjustment arm has a first end and a second end in the axial direction. One of the two GPS antennas is mounted on the first end of the support body or the adjusting arm along the axial direction, and the other of the two GPS antennas is mounted on the second end of the adjusting arm along the axial direction. The driving mechanism is used to drive the adjusting arm to switch between the retracted state and the extended state to change the distance between the two GPS antennas.

2. The dual GPS parameter module according to claim 2, characterized in that, The adjusting arm includes multiple sets of cross swing arms and two support rods; The cross pendulum includes a first pendulum and a second pendulum, wherein the first pendulum is hinged to the second pendulum at the center of its own axis at the center of its own axis; the multiple sets of cross pendulums are arranged sequentially along an axis, and in two adjacent sets of cross pendulums, one end of the first pendulum in one cross pendulum is hinged to one end of the second pendulum in the other cross pendulum; In the multiple sets of cross-arms, each of the cross-arms located at opposite ends of the axial direction is hinged to a support rod, and each of the two support rods is equipped with a GPS antenna.

3. The dual GPS parameter module according to claim 2, characterized in that, The support rod is provided with a groove extending along its own axial direction; One of the first swing arm and the second swing arm is hinged to one end of the support rod, and the other of the first swing arm and the second swing arm is provided with a slider, which slides within the groove.

4. The dual GPS parameter module according to claim 2, characterized in that, The number of the cross swing arms is three sets, namely the middle cross swing arm and the end cross swing arms located on both sides. The first or second swing arm of the middle cross swing arm is driven to be connected to the power output end of the drive mechanism. The driving mechanism is a rotary motor installed inside the support body. It is used to control the rotation of the first or second swing arm in the intermediate cross swing arm, thereby driving the end cross swing member to move and changing the axial length of the adjusting arm.

5. The dual GPS parameter module according to claim 4, characterized in that, Both the first and second swing arms in the intermediate cross swing arm are equipped with guide posts, and the support body has two arc-shaped grooves, in which the guide posts slide.

6. The dual GPS parameter module according to claim 2, characterized in that, The adjusting arm includes guide rods that are sequentially sleeved, with at least two guide rods. The sequentially sleeved guide rods can extend and retract relative to each other along the axial direction, and the outermost guide rod is retractably mounted on the side wall of the supporting body. One of the two GPS antennas is mounted on the support body, and the other of the two GPS antennas is mounted on the innermost guide rod.

7. The dual GPS parameter module according to claim 6, characterized in that, The driving mechanism includes a drive motor, a lead screw, and a sleeve. The sleeve is mounted on the guide rod and is threadedly engaged with the lead screw. The drive motor is installed inside the support body and is used to drive the lead screw to rotate, thereby changing the axial position of the sleeve on the lead screw and thus changing the axial position of the guide rod.

8. The dual GPS parameter module according to claim 7, characterized in that, The side wall of the support body is equipped with a slide rail, which extends along the side wall of the support body away from the support body; the adjusting arm is slidably installed in the slide rail; one of the two GPS antennas is installed at the end of the slide rail away from the support body; and the other of the two GPS antennas is installed on the innermost guide rod. The drive mechanism is used to drive the adjusting arm to extend in a direction away from the slide rail.

9. The dual GPS parameter module according to claim 2, characterized in that, The adjusting arm includes a conveyor belt and a trolley mounted on the conveyor belt, one of the two GPS antennas is mounted on the trolley, and the other of the two GPS antennas is mounted on the supporting body; The drive mechanism includes a drive motor and two synchronous pulleys. The conveyor belt is mounted on the two synchronous pulleys. The drive motor drives the synchronous pulleys to rotate, and the synchronous pulleys drive the conveyor belt to move, thereby changing the position of the trolley.

10. The dual GPS parameter module according to any one of claims 1-9, characterized in that, Also includes: The control unit, integrated within the support body, is used to control the operation of the drive mechanism.

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