Multimode differential fusion RTK measuring device

Abstract

The utility model discloses a multi-mode differential fusion RTK measuring device which comprises a supporting frame, the supporting frame is of a tripod structure, the top end of the supporting frame is provided with a threaded seat, the threaded seat is connected with a measurer, and the measurer is provided with an antenna adjusting module; the RTK measuring device relates to the technical field of measuring devices, the RTK measuring device only needs to adjust the top of the RTK measuring device to a basically horizontal state through the tripod itself during initial erection, all subsequent operations for satellite signal optimization including pitch angle matching and environment shielding and avoiding are independently, rapidly and conveniently completed through the antenna adjusting module, and the antenna adjusting module is simple in structure and convenient to use. And the heavy tripod does not need to be repeatedly adjusted, so that the field efficiency and the convenience and rapidness of operation are greatly improved, and the signal receiving strength, the data integrity and the positioning reliability in a complex environment are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of measurement device technology, specifically a multi-mode differential fusion RTK measurement device. Background Technology

[0002] Multi-mode differential fusion is the core capability of RTK measurement equipment. It fully utilizes all available GNSS satellite resources (multi-mode), combines the error correction of the reference station (differential), and uses advanced algorithms for unified fusion and optimization processing. This completely solves the pain points of traditional single-system or dual-system RTK in terms of insufficient satellite quantity, poor geometry, and sharp performance degradation in obstructed environments.

[0003] Therefore, in the measurement process of RTK measurement devices, the use of multi-mode differential fusion technology can greatly improve the measurement accuracy. However, at present, RTK measurement devices mainly rely on antennas for communication. Conventional RTK measurement device antennas are mainly fixedly installed on the top base. Therefore, the polarization axis of the fixed antenna is strictly perpendicular to the ground plane, and the antenna orientation cannot be adjusted according to the needs. When the satellite elevation angle is <30°, the polarization matching deviation is >15°, which causes a signal attenuation of 3-5dB. When there is an object blocking the signal, it causes deviation in the measurement results and discontinuity of the signal. In view of this, in-depth research was conducted on the above problems, which led to this case. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a multi-mode differential fusion RTK measurement device, which solves the existing background technology problems.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a multi-mode differential fusion RTK measurement device, including a support frame, the support frame being a tripod structure, a threaded seat being provided at the top of the support frame, a measuring device being connected to the threaded seat, and an antenna adjustment module being provided on the measuring device;

[0006] The antenna adjustment module includes an adjustment rotating seat, which is movably mounted on the top of the measuring instrument. A guide tube is integrally formed on the adjustment rotating seat, and an internal thread is formed inside the guide tube. An adjustment threaded tube is connected to the internal thread of the guide tube. A guide rod is set at the center of the adjustment rotating seat. The guide rod is a rectangular structure rod. A rectangular groove in the center of the adjustment threaded tube matches the guide rod. An antenna mounting seat is connected to the end of the adjustment threaded tube. The antenna mounting seat is a cylindrical plate. The antenna mounting seat is movably connected to the end of the adjustment threaded tube.

[0007] The antenna mounting base is provided with a transceiver antenna, and an adjustment pin is provided between the transceiver antenna and the antenna mounting base;

[0008] The antenna adjustment module also includes a rotating ring sleeve, which is disposed on the upper part of the adjustment rotating seat. A synchronizing rod extends from the rotating ring sleeve and is connected to the bottom of the antenna mounting seat. The synchronizing rod is a telescopic rod structure.

[0009] Preferably, the rotating ring is a plate with an annular structure, and the adjusting rotating seat is provided with a sleeve with a cylindrical structure, and the rotating ring is sleeved on the sleeve.

[0010] Preferably, the adjusting pin engages with the root of the transceiver antenna via a worm gear structure, and the adjusting pin is rotated by a knob.

[0011] Preferably, the bottom of the antenna mounting base is provided with an aviation connector, and the adjusting threaded tube is provided with an aviation socket that connects to the aviation connector.

[0012] Preferably, the bottom of the antenna mounting base is provided with a connecting seat, and the connecting seat is fixed to the synchronizing rod by a connecting pin.

[0013] Beneficial effects

[0014] This invention provides a multi-mode differential fusion RTK measurement device. It offers the following advantages: During initial setup, the tripod itself only needs to be adjusted to a basic level. All subsequent optimizations for satellite signals, including elevation angle matching and environmental obstruction avoidance, are performed independently, quickly, and conveniently through the aforementioned antenna adjustment module. This eliminates the need for repeated adjustments to the bulky tripod, significantly improving field efficiency and operational convenience, and substantially enhancing signal reception strength, data integrity, and positioning reliability in complex environments. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the multi-mode differential fusion RTK measurement device described in this utility model.

[0016] Figure 2 This is a schematic diagram of the main structure of a multi-mode differential fusion RTK measurement device according to the present invention.

[0017] Figure 3 This is a schematic diagram of the explosive structure of the multi-mode differential fusion RTK measurement device described in this utility model.

[0018] In the diagram: 1. Support frame; 2. Measuring instrument; 3. Adjusting rotating seat; 4. Guide tube; 5. Guide rod; 6. Adjusting threaded tube; 7. Antenna mounting base; 8. Adjusting pin; 9. Rotating ring; 10. Synchronizing rod; 11. Knob; 12. Aviation connector; 13. Aviation socket; 14. Transceiver antenna. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 This utility model provides an implementation scheme: the conventional RTK measurement device antenna is mainly fixedly installed based on the base at the top. Therefore, the polarization axis of the fixed antenna is strictly perpendicular to the ground plane, and the antenna orientation cannot be adjusted according to the needs. When the satellite elevation angle is <30°, the polarization matching deviation is >15°, which causes the signal attenuation of 3 to 5 dB. When there is an object blocking the signal, it causes deviation in the measurement results and discontinuity in the signal.

[0021] According to the instruction manual Figure 1-3 As can be seen, in order to solve the signal attenuation and measurement deviation problems caused by the fixed antenna polarization axis of traditional RTK measurement devices, this application discloses a multi-mode differential fusion RTK measurement device. This device achieves dynamic adjustment of antenna attitude and optimization of signal reception through precise mechanical structure design. Specifically, it includes a support frame 1, which is a tripod structure support frame 1 with a standardized threaded seat on the top for securely connecting the main body of the measuring device 2. The measuring device 2 serves as the signal processing hub of the RTK device. (This RTK device refers to the working principle of the Huace B5 professional base station RTK, which is existing technology and will not be described in detail here.) An antenna adjustment module is movably installed on its top.

[0022] The core of this antenna adjustment module lies in enabling independent and convenient adjustment of the antenna height, elevation angle, and azimuth angle. Its specific structure includes: an adjustment rotating seat 3 movably mounted on the top of the measuring device 2. The adjustment rotating seat 3 is a horizontal rotating base. A guide tube 4 is integrally mounted on the adjustment rotating seat 3. An adjustment threaded tube 6 is internally connected to the guide tube 4. By rotating the adjustment rotating seat 3, the guide tube 4 engages with the adjustment threaded tube 6, thereby causing the adjustment threaded tube 6 to rise and fall linearly. A guide rod 5 is fixedly mounted on the adjustment rotating seat 3 and does not rotate with the adjustment rotating seat 3. It plays a radial limiting role for the adjustment threaded tube 6, preventing the adjustment threaded tube 6 from rolling when the threads are engaged. The end of the adjustment threaded tube 6 is movably connected to an antenna mounting seat 7 with a cylindrical plate structure. The antenna mounting seat 7 is used to support and install the antenna.

[0023] Specifically, refer to the instruction manual. Figure 1-3It is known that a transceiver antenna is mounted on the antenna mounting base 7 via an adjusting pin 8. A rotating ring 9 is movably mounted on the upper part of the adjusting rotating base 3. A telescopic rod 10 extends from the rotating ring 9. The end of the telescopic rod 10 is connected to the bottom of the antenna mounting base 7. The rotating ring 9 does not rotate when adjusting the height. Rotating the adjusting rotating base 3 adjusts the antenna mounting base 7 to the preset height. During this process, the telescopic rod 10 and the antenna mounting base 7 move synchronously. Before the height is adjusted to the correct position, the adjusting pin 8 is controlled to rotate the transceiver antenna to the preset angle based on the local satellite axis angle data. Then, the rotating ring 9 is rotated, causing the rotating ring 9 to drive the antenna mounting base 7 to rotate through the telescopic rod 10, thus adjusting the transceiver antenna to align with the satellite.

[0024] As a preferred option, the rotating ring 9 is a ring-shaped plate, and the adjusting rotating seat 3 is provided with a cylindrical sleeve. The rotating ring 9 is fitted on the sleeve to ensure stable and smooth rotation.

[0025] As a preferred option, the adjusting pin 8 engages with the root of the transceiver antenna via a worm gear structure, and the adjusting pin 8 is rotated by a knob 11. By rotating the knob 11, the worm gear is driven, which can precisely and steplessly adjust the elevation angle of the antenna around the pin, i.e., adjust the polarization axis tilt angle, so that it accurately matches the polarization direction of the low elevation angle satellite signal, effectively solving the signal attenuation problem. Moreover, the self-locking characteristic of the worm gear ensures that the angle is stable and reliable after adjustment.

[0026] As a preferred option, the antenna mounting base 7 is further provided with an aviation connector 12 at its bottom, and an aviation socket 13 is provided on the adjusting threaded tube 6 to connect with the aviation connector 12, ensuring the reliability of the electrical connection of the antenna under various attitudes.

[0027] As a preferred option, the antenna mounting base 7 is further provided with a connecting seat at its bottom. The connecting seat and the synchronization rod 10 are fixed by a connecting pin to achieve a rigid synchronous connection for azimuth adjustment.

[0028] In summary, this RTK measurement device only requires initial setup by adjusting the top of the tripod to a basically level position. All subsequent optimizations for satellite signals, including elevation angle matching and environmental obstruction avoidance, can be completed independently, quickly, and conveniently through the aforementioned antenna adjustment module. This eliminates the need for repeated adjustments to the bulky tripod itself, greatly improving field efficiency and ease of operation, and significantly enhancing signal reception strength, data integrity, and positioning reliability in complex environments.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-mode differential fusion RTK measurement device, comprising a support frame (1), the support frame (1) being a tripod structure, a threaded seat being provided at the top of the support frame (1), and a measuring device (2) being connected to the threaded seat, characterized in that, The measuring device (2) is equipped with an antenna adjustment module; The antenna adjustment module includes an adjustment rotating seat (3), which is movably mounted on the top of the measuring instrument (2). A guide tube (4) is integrally provided on the adjustment rotating seat (3). An internal thread is provided inside the guide tube (4). An adjustment threaded tube (6) is connected to the internal thread of the guide tube (4). A guide rod (5) is provided at the center of the adjustment rotating seat (3). The guide rod (5) is a rectangular structure rod. The rectangular groove in the center of the adjustment threaded tube (6) matches the guide rod (5). An antenna mounting seat (7) is connected to the end of the adjustment threaded tube (6). The antenna mounting seat (7) is a cylindrical plate. The antenna mounting seat (7) is movably connected to the end of the adjustment threaded tube (6). The antenna mounting base (7) is provided with a transceiver antenna, and an adjustment pin (8) is provided between the transceiver antenna (14) and the antenna mounting base (7); The antenna adjustment module also includes a rotating ring (9), which is located on the upper part of the adjustment rotating seat (3). A synchronizing rod (10) extends from the rotating ring (9) and is connected to the bottom of the antenna mounting seat (7). The synchronizing rod (10) is a telescopic rod structure.

2. The multi-mode differential fusion RTK measurement device of claim 1, wherein, The rotating ring (9) is a ring-shaped plate, and the adjusting rotating seat (3) is provided with a cylindrical sleeve, and the rotating ring (9) is sleeved on the sleeve.

3. The multi-mode differential fusion RTK measurement device of claim 2, wherein, The adjusting pin (8) engages with the root of the transceiver antenna through a worm gear structure, and the adjusting pin (8) is rotated by a knob (11).

4. The multi-mode differential fusion RTK measurement device of claim 3, wherein, The bottom of the antenna mounting base (7) is provided with an aviation connector (12), and the adjusting threaded tube (6) is provided with an aviation socket (13) connected to the aviation connector (12).

5. The multi-mode differential fusion RTK measurement device of claim 4, wherein, The bottom of the antenna mounting base (7) is provided with a connecting seat, and the connecting seat is fixed to the synchronizing rod (10) by a connecting pin.

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