Water level reference elevation measuring device based on GNSS (Global Navigation Satellite System)

Abstract

The utility model relates to the technical field of measurement, in particular to a GNSS (Global Navigation Satellite System)-based water level reference elevation measuring device which comprises a rod frame, a transverse cylinder body, a solar panel, a Beidou GNSS positioning device and a water level detection piece. By designing the transverse barrel, the end, facing the water surface, of the transverse barrel is a short arm, the end, away from the water surface, of the transverse barrel is a long arm, the cross beam frame is arranged on the inner side of the transverse barrel and fixed through the threaded locking structure, the threaded rod, the annular gasket and the locking nut, and during installation and use, the threaded locking structure can be unscrewed; the cross beam frame slides on the inner side of the transverse cylinder, the end of the cross beam frame provided with the water level detection piece is close to the rod frame, so that the water level measuring instrument is conveniently calibrated, maintained and replaced, the two sides of the rod frame are stably stressed, and the structure is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of measurement, in particular to a water level reference elevation measurement device based on GNSS. Background Art

[0002] The water level reference elevation refers to the water level height measured with a reference elevation surface as the measurement reference. The traditional method is to use a total station for measurement, which has complex operations, low measurement efficiency, and high labor input. With the application of the current high-precision GNSS (abbreviation of Global Navigation Satellite System, also known as the Global Satellite Navigation System) technology in the measurement field, the reference elevation can be obtained by using the GNSS vertical positioning function, and then combined with a non-contact water level measurement instrument, the water level reference elevation can be obtained efficiently and quickly.

[0003] When the related equipment is in use, the non-contact water level measurement instrument is suspended above the river surface. It is very difficult to calibrate, maintain, and replace the water level measurement instrument. Moreover, the installation structure of the related equipment support also needs to be upgraded. Therefore, the utility model provides a new water level reference elevation measurement device based on GNSS. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art, and a water level reference elevation measurement device based on GNSS is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A water level reference elevation measurement device based on GNSS, including a rod frame. A Beidou GNSS positioning device is fixedly installed at the top of the rod frame. A transverse cylinder is fixedly connected to the side of the rod frame and near the top of the rod frame. One end of the transverse cylinder facing the water surface is a short arm, and the end of the transverse cylinder away from the water surface is a long arm. A cross beam frame is arranged inside the transverse cylinder. The first end of the cross beam frame extends from the short arm end of the transverse cylinder towards the water surface direction, and a water level detector is fixedly installed at the first end of the cross beam frame. A threaded locking structure is arranged between the short arm end of the transverse cylinder and the side of the cross beam frame. The second end of the cross beam frame is fixedly connected with a threaded rod. One end of the threaded rod extends out from the long arm end of the transverse cylinder, and an annular gasket and a locking nut are installed on the threaded rod. A solar panel is fixedly installed between the top of the transverse cylinder and the side of the rod frame through a mounting bracket. The solar panel is used to supply power to the Beidou GNSS positioning device and the water level detector.

[0007] As a further description of the above technical solution: It further includes: an RTU data acquisition terminal, and the RTU data acquisition terminal is communicatively connected to both the Beidou GNSS positioning device and the water level detector.

[0008] As a further description of the above technical solution: It further includes: a distribution box, and the distribution box is fixedly installed on the ground around the pole frame or fixedly installed on the pole frame through a pole clamp, and the RTU data acquisition terminal is arranged inside the distribution box.

[0009] As a further description of the above technical solution: The threaded locking structure includes:

[0010] An inner cone block fixedly connected inside the short arm end of the transverse cylinder;

[0011] A locking head, and the locking head includes a flange portion, a hollow hexagonal portion is fixedly connected to the right end of the flange portion, a conical portion is fixedly connected to the left end of the flange portion, a cylindrical portion is fixedly connected to the left end of the conical portion, a plurality of notches are formed on the circumferential surfaces of the cylindrical portion and the conical portion, an external thread is arranged on the outer side of the cylindrical portion, and the cylindrical portion is threadedly connected to the inner side of the inner cone block.

[0012] As a further description of the above technical solution: The mounting bracket includes:

[0013] A first bracket, and the first bracket includes: a vertical frame, the top end of the vertical frame is fixedly connected to the bottom of the solar panel, the bottom end of the vertical frame is fixedly connected with a sleeve member, and the sleeve member is fixedly sleeved on the transverse cylinder;

[0014] A second bracket, and the second bracket includes an inclined frame, the first end of the inclined frame is fixedly connected to the bottom of the solar panel, a pole clamping member is arranged at the second end of the inclined frame, there are two groups of inclined frames, and the two pole clamping members corresponding to the two groups of inclined frames are fastened by bolts, and the two pole clamping members corresponding to the two groups of inclined frames are fixedly connected to the pole frame.

[0015] As a further description of the above technical solution: The water level detector is a radar water level gauge or an ultrasonic water level gauge.

[0016] As a further description of the above technical solution: A concrete foundation pile is fixedly arranged at the bottom end of the pole frame.

[0017] The utility model has the following beneficial effects:

[0018] 1. Compared with the prior art, for this GNSS-based water level reference elevation measurement device, by designing a transverse cylinder, one end of the transverse cylinder facing the water surface is a short arm, and the end of the transverse cylinder away from the water surface is a long arm. The crossbeam is arranged inside the transverse cylinder and is fixed by a threaded locking structure, a threaded rod, an annular gasket, and a locking nut. When installing and using, the threaded locking structure can be loosened to allow the crossbeam to slide inside the transverse cylinder, bringing the end of the crossbeam with the water level detector close to the rod holder, facilitating the calibration, maintenance, and replacement of the water level measuring instrument. Moreover, the forces on both sides of the rod holder are balanced, and the structure is more stable.

[0019] 2. Compared with the prior art, for this GNSS-based water level reference elevation measurement device, by designing a transverse cylinder, the transverse cylinder and the rod holder are in a perpendicular structure, facilitating the installation of a solar panel that is inclined (towards the sun). BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. is a schematic diagram of the use of a GNSS-based water level reference elevation measurement device proposed by the present utility model;

[0021] Figure 2 FIG. is a first perspective view of a GNSS-based water level reference elevation measurement device proposed by the present utility model;

[0022] Figure 3 FIG. is a second perspective view of a GNSS-based water level reference elevation measurement device proposed by the present utility model;

[0023] Figure 4 FIG. is a front view of a GNSS-based water level reference elevation measurement device proposed by the present utility model;

[0024] Figure 5 is Figure 4 a cross-sectional view taken along the section line B - B in ;

[0025] Figure 6 is Figure 5 a partial enlarged view at A in ;

[0026] Figure 7 FIG. is a perspective view of the locking head of a GNSS-based water level reference elevation measurement device proposed by the present utility model.

[0027] LEGEND DESCRIPTION:

[0028] 1. Pole frame; 2. Distribution box; 3. Water surface; 4. Concrete foundation pile; 5. Beidou GNSS positioning device; 6. Horizontal cylinder; 7. Solar panel; 8. First bracket; 801. Vertical frame; 802. Sleeve part; 9. Second bracket; 901. Inclined frame; 902. Clamping rod part; 10. Cross beam frame; 11. Water level detector; 12. Inner cone block; 13. Locking head; 1301. Flange part; 1302. Conical part; 1303. Cylindrical part; 1304. Hexagonal part; 14. Threaded rod; 15. Annular gasket; 16. Locking nut. Detailed implementation manner

[0029] Refer to Figures 1-7, a water level reference elevation measurement device based on GNSS provided by the utility model includes a rod frame 1. A Beidou GNSS positioning device 5 is fixedly installed at the top of the rod frame 1. The Beidou GNSS positioning device 5 can obtain the vertical reference elevation based on satellite data (the distance between the Beidou GNSS positioning device 5 and the water level detection component 11 in the vertical direction is fixed, so the reference elevation of the water level detection component 11 can be obtained). A horizontal cylinder 6 is fixedly connected to the side of the rod frame 1 and near the top of the rod frame 1. The horizontal cylinder 6 is in a horizontal state and is perpendicular to the rod frame 1. One end of the horizontal cylinder 6 facing the water surface 3 is the short arm, and the end of the horizontal cylinder 6 away from the water surface 3 is the long arm. The designed structure of the horizontal cylinder 6 makes the cantilever end of the cross beam frame 10 above the water surface 3 relatively stable after the cross beam frame 10 is installed inside the horizontal cylinder 6. A cross beam frame 10 is arranged inside the horizontal cylinder 6. The first end of the cross beam frame 10 extends from the short arm end of the horizontal cylinder 6 towards the water surface 3, and a water level detection component 11 is fixedly installed at the first end of the cross beam frame 10. The water level detection component 11 detects the water level depth downward (the water level detection component 11 detects the distance between the water surface 3 and the water level detection component 11. The vertical position of the water level detection component 11 is fixed, and the distance between the water surface 3 and the water level detection component 11 can reflect the depth of the water at the detection position). A threaded locking structure is arranged between the short arm end of the horizontal cylinder 6 and the side surface of the cross beam frame 10 for fixing the short arm end of the horizontal cylinder 6 and the cross beam frame 10. The second end of the cross beam frame 10 is fixedly connected to a threaded rod 14. One end of the threaded rod 14 extends out of the long arm end of the horizontal cylinder 6, and an annular gasket 15 and a locking nut 16 are installed on the threaded rod 14. The annular gasket 15 is sleeved on the threaded rod 14, and the annular gasket 15 abuts against the end of the long arm end of the horizontal cylinder 6. The locking nut 16 is located outside the annular gasket 15. After the annular gasket 15 and the locking nut 16 are installed on the threaded rod 14, the cross beam frame 10 cannot slide towards the right, so that the cross beam frame 10 is stably connected to the horizontal cylinder 6. A solar panel 7 is fixedly installed between the top of the horizontal cylinder 6 and the side surface of the rod frame 1 through a mounting bracket. The solar panel 7 is generally in an inclined state (the solar panel 7 faces the sun) and is relatively stable when installed in the right-angle structure formed by the horizontal cylinder 6 and the rod frame 1. The solar panel 7 is used to supply power to the Beidou GNSS positioning device 5 and the water level detection component 11. Specifically, the solar panel 7 is equipped with electrical components such as a battery and an inverter. The solar panel 7 is connected to the battery through wires, an inverter, etc. for charging the battery, and the battery directly supplies power to the Beidou GNSS positioning device 5 and the water level detection component 11.

[0030] In one embodiment, it further includes: an RTU data acquisition terminal, which is a device integrating data acquisition, storage, and transceiver. The RTU data acquisition terminal is communicatively connected to both the Beidou GNSS positioning device 5 and the water level detector 11, and transmits the relevant data collected by the Beidou GNSS positioning device 5 and the water level detector 11 to the data platform for subsequent data processing.

[0031] In one embodiment, it further includes a distribution box 2, which is fixedly installed on the ground around the pole rack 1 or fixedly installed on the pole rack 1 through a supporting pole. The RTU data acquisition terminal is arranged inside the distribution box 2, and an inverter, a battery, a switching component, etc. that are matched with the solar panel 7 can also be arranged inside the distribution box 2.

[0032] In one embodiment, the threaded locking structure includes: an inner cone block 12 and a locking head 13 fixedly connected inside the short arm end of the transverse cylinder 6.

[0033] The locking head 13 includes a flange portion 1301. The right end of the flange portion 1301 is fixedly connected with a hollow hexagonal portion 1304. The left end of the flange portion 1301 is fixedly connected with a conical portion 1302. The left end of the conical portion 1302 is fixedly connected with a cylindrical portion 1303. A plurality of notches are formed on the circumferential surfaces of the cylindrical portion 1303 and the conical portion 1302. An external thread is arranged on the outside of the cylindrical portion 1303, and the cylindrical portion 1303 is threadedly connected with the inside of the inner cone block 12.

[0034] Threadedly connect the cylindrical portion 1303 of the locking head 13 with the inside of the inner cone block 12. During the process of screwing the locking head 13 tightly, the conical portion 1302 is located inside the inner cone block 12, and the inner cone block 12 squeezes the conical portion 1302 inward, and the conical portion 1302 deforms inward to clamp the cross beam frame 10.

[0035] In one embodiment, the mounting bracket includes: a first bracket 8 and a second bracket 9.

[0036] The first bracket 8 includes: a vertical frame 801, the top end of the vertical frame 801 is fixedly connected to the bottom of the solar panel 7, and the bottom end of the vertical frame 801 is fixedly connected with a sleeve member 802, and the sleeve member 802 is fixedly sleeved on the transverse cylinder 6.

[0037] The second bracket 9 includes an inclined frame 901. The first end of the inclined frame 901 is fixedly connected to the bottom of the solar panel 7. A holding rod member 902 is arranged at the second end of the inclined frame 901. There are two groups of inclined frames 901, and the two holding rod members 902 corresponding to the two groups of inclined frames 901 are fastened by bolts, and the two holding rod members 902 corresponding to the two groups of inclined frames 901 are fixedly connected to the pole rack 1.

[0038] The first bracket 8 and the second bracket 9 cooperate to make the installation of the solar panel 7 more stable.

[0039] In one embodiment, the water level detector 11 is a radar water level gauge or an ultrasonic water level gauge. Both the radar water level gauge and the ultrasonic water level gauge are non-contact water level gauges and can detect the water surface height downward.

[0040] In one embodiment, a concrete foundation pile 4 is fixedly arranged at the bottom end of the pole frame 1 to increase the stability of the pole frame 1 and the ground.

[0041] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A GNSS-based water level reference height measurement device, comprising a rod frame (1), characterized in that: A Beidou GNSS positioning device (5) is fixedly mounted on the top of the rod frame (1); a transverse cylinder (6) is fixedly connected to the side of the rod frame (1) and close to the top of the rod frame (1); the end of the transverse cylinder (6) facing the water surface (3) is a short arm; the end of the transverse cylinder (6) away from the water surface (3) is a long arm; a crossbeam frame (10) is arranged inside the transverse cylinder (6); the first end of the crossbeam frame (10) extends from the short arm end of the transverse cylinder (6) toward the water surface (3); and a water level detection component (11) is fixedly mounted on the first end of the crossbeam frame (10); A threaded locking structure is provided between the short arm end of the transverse cylinder (6) and the side of the crossbeam frame (10); a threaded rod (14) is fixedly connected to the second end of the crossbeam frame (10); one end of the threaded rod (14) extends from the long arm end of the transverse cylinder (6); and an annular gasket (15) and a locking nut (16) are installed on the threaded rod (14); a solar panel (7) is fixedly installed between the top of the transverse cylinder (6) and the side of the rod frame (1) via a mounting bracket; the solar panel (7) is used to supply power to a Beidou GNSS positioning device (5) and a water level detection component (11).

2. The GNSS-based water level reference height measurement device according to claim 1, characterized in that: Also includes: An RTU data acquisition terminal is communicatively connected to a Beidou GNSS positioning device (5) and a water level detection component (11).

3. The GNSS-based water level reference height measurement device according to claim 2, characterized in that: Also includes: A distribution box (2), the distribution box (2) is fixedly installed on the ground around the pole frame (1) or is fixedly installed with the pole frame (1) via a holding pole, and the RTU data acquisition terminal is arranged inside the distribution box (2).

4. The GNSS-based water level reference height measurement device according to claim 1, characterized in that: The thread locking structure comprises: An inner cone block (12) fixedly connected to the short arm end of the transverse cylinder (6); A locking head (13), the locking head (13) comprising a flange portion (1301), the right end of the flange portion (1301) being fixedly connected to a hollow hexagonal portion (1304), the left end of the flange portion (1301) being fixedly connected to a conical portion (1302), the left end of the conical portion (1302) being fixedly connected to a cylindrical portion (1303), the circumferential surfaces of the cylindrical portion (1303) and the conical portion (1302) being provided with a plurality of notches, the outer side of the cylindrical portion (1303) being provided with an external thread, and the cylindrical portion (1303) being threadedly connected to the inner side of the inner cone block (12).

5. The GNSS-based water level reference height measurement device according to claim 1, characterized in that: The mounting bracket comprises: A first bracket (8), the first bracket (8) comprising: a vertical bracket (801), the top end of the vertical bracket (801) being fixedly connected to the bottom of the solar panel (7), the bottom end of the vertical bracket (801) being fixedly connected to a sleeve member (802), the sleeve member (802) being fixedly sleeved on the transverse cylinder (6); A second bracket (9), the second bracket (9) comprising a tilting bracket (901), the first end of the tilting bracket (901) being fixedly connected to the bottom of the solar panel (7), the second end of the tilting bracket (901) being provided with a holding rod member (902), the tilting bracket (901) being provided with two groups, the two holding rod members (902) corresponding to the two groups of tilting brackets (901) being fastened by bolts, and the two holding rod members (902) corresponding to the two groups of tilting brackets (901) being fixedly connected to the pole bracket (1).

6. The GNSS-based water level reference height measurement device according to claim 1, characterized in that: The water level detection component (11) is a radar water level gauge or an ultrasonic water level gauge.

7. The GNSS-based water level reference height measurement device according to claim 1, characterized in that: A concrete foundation pile (4) is fixedly arranged at the bottom end of the pole frame (1).

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