CORS station elevation joint measurement device
By designing an elevation joint measurement device that includes a top horizontal transfer ruler, a vertical transfer elevation rod and adjustment device, and a bottom leveling ruler support, the problems of high cost, difficult construction, and low precision in CORS station elevation transfer were solved, and high-precision and high-efficiency elevation transfer was achieved.
Patent Information
- Application Number
- CN202422417876.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-01-30
- Filing Date
- 2024-10-08
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The existing technology for transmitting elevation of CORS stations has problems such as high cost, difficulty in construction, low accuracy and low operating efficiency.
A height joint measuring device is adopted which includes a top horizontal transfer ruler, a vertical transfer elevation rod and an adjustment device, a bottom level ruler bearing and a top support assembly. Accurate transmission of elevation is achieved through a clamp and an adjuster, reducing connection errors and temperature influences.
High-precision and high-efficiency elevation transmission is achieved, with the error controlled within 0.5 mm, which reduces construction and operation costs and improves work efficiency.
Smart Images
Figure CN223376630U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of elevation benchmarks and can be applied to joint elevation measurement of CORS stations, solving the difficulties of high cost, difficult construction, low precision and low operating efficiency in measuring the elevation of CORS stations in the past by building scaffolding. Background Art
[0002] With the rapid advancement and widespread application of GNSS technology, its role in production and daily life has become increasingly important. Currently, continuously operating reference stations (CORS), established using multi-base station network RTK technology, have become a hotspot for urban GNSS applications. Since CORS ground stations are mostly observation towers around 3 meters high, and the equipment operates continuously year-round, simply and conveniently transmitting elevations to the bottom of the GNSS antenna amplifier without disrupting CORS observations has long been a challenge in leveling.
[0003] The existing leveling method involves building a scaffold near the CORS station and placing the instrument on the scaffold for observation. The scaffolding rental, transportation, and construction costs are high, and the scaffolding must be built at a height that is roughly level with the amplifier at the base of the CORS station antenna. Once the line of sight is roughly level, the tripod is adjusted so that the eyepiece cross wire is precisely aligned with the base of the amplifier. Because scaffolding observations are unstable, the round-trip height difference often exceeds the limit. Only experienced observers, performing multiple observations in good weather conditions, can meet the regulatory requirements. To address these issues, the inventors designed a Z-type elevation transfer scale to address the elevation transfer problem at the CORS ground station. Utility Model Content
[0004] In order to solve the problem of elevation transmission, the purpose of the utility model is to provide a high-precision elevation transmission device.
[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a height joint measurement device, including a top horizontal transfer ruler and an adjustment device, a vertical transfer height rod and an adjustment device, a bottom level ruler bearing and a top support assembly, the top horizontal transfer ruler and the adjustment device are provided with a top support screw, the top horizontal transfer ruler and the adjustment device are provided with a clamping device horizontal transfer ruler connector, and a clamping device locking screw is provided on the outside of the clamping device horizontal transfer ruler connector assembly; the vertical transmission height rod and the adjustment device are provided with a horizontal and vertical adjuster, the horizontal and vertical adjuster is provided with a column clamping ring for fixing the CORS column, and the column clamping ring is provided with a top column clamping ring locking screw; the bottom level ruler bearing is provided with a bottom top support screw.
[0006] Preferably, a clamping antenna connector assembly is provided at the front end of the top horizontal transfer ruler.
[0007] Preferably, a clamper locking screw is provided on the outside of the clamping antenna connector assembly, and a supporting screw is provided in the middle of one of the supporting assemblies.
[0008] Preferably, a level bubble is provided on the top level transfer ruler.
[0009] Preferably, a top leveling point is provided on the top level transfer ruler.
[0010] Preferably, the vertical transmission elevation rod and adjustment device include a horizontal and vertical adjuster, and the horizontal and vertical adjuster is equipped with a vertical adjustment screw and a horizontal adjustment screw for adjusting the horizontal and vertical directions.
[0011] Preferably, a tightening marker and a tightening indicator scale are provided at the connection between the vertical transfer elevation rod and the adjustment device.
[0012] Preferably, the vertical transfer elevation rod and the adjustment device are provided with a circular level bubble to assist the horizontal and vertical regulators in adjusting the verticality of the vertical transfer elevation rod.
[0013] Preferably, the bottom leveling rod is provided with a bottom leveling point.
[0014] Preferably, the bottom level ruler is provided with a bottom supporting screw.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] 1. The antenna clamping device can be connected to the bottom of the antenna amplifier without removing the CORS station antenna to accurately transmit the elevation to the bottom of the amplifier, providing a high-precision elevation reference for the running CORS station;
[0017] 2. Use the horizontal support to adjust the top level, and use the horizontal and vertical adjusters on the vertical transfer elevation rod to quickly adjust the vertical transfer elevation rod to ensure verticality, thereby improving elevation transfer accuracy and work efficiency. Adjust the bottom level rod support to better fix the Z-shaped elevation transfer scale and increase transfer speed;
[0018] 3. High-precision elevation transfer: The error of this Z-type elevation transfer scale mainly comes from assembly connection error, horizontal part transfer error, vertical part transfer error, and error caused by temperature.
[0019] 3.1 Assembly and Connection Errors: The vertical section of the steel pipe has a diameter of 30 mm and a wall thickness of 10 mm. Four spiral joints are used, all with a pitch (t) less than 1 mm, a thread count (n) greater than 15, and a lead (s=nt) of approximately 15 mm. Tightening markers are also provided at these joints. The outer circumference of the steel pipe is 94 mm, and the pipe advances 1 mm per rotation. A 1 mm deviation in the tightening markers affects the height by approximately 0.01 mm, and by approximately 0.04 mm at all four locations.
[0020] 3.2 Error in horizontal part transmission: The horizontal bubble adopts a tube level bubble, and each marking takes 4 seconds. If more than 1 marking is made, the length is 300 mm, and the error is 300mm*sin(4")=0.0069mm, and the 10" error is 0.0145mm. The actual operation of horizontal part transmission can be controlled within 4 seconds.
[0021] 3.3 Transmission error of the vertical part: A deviation of 20 mm from the bottom in the vertical direction causes a measurement height error of about 0.07 mm, and a deviation of 40 mm causes a measurement height error of about 0.27 mm. The bottom deviation can be controlled within 20 mm in actual operation.
[0022] 3.4 Temperature Effects: The coefficient of expansion of 304 steel is 10.6-12.2 microns per meter per degree Celsius. A 2.7-meter length of 304 steel will grow approximately 0.159 mm for a 5-degree temperature change. When inspecting and measuring lengths, try to limit the temperature change to no more than 5 degrees Celsius. If this value is exceeded, a temperature correction should be applied.
[0023] After the above analysis, the elevation transfer accuracy of the Z-type elevation transfer scale can be controlled within 0.5 mm. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0025] Figure 1 This is a schematic structural diagram of the utility model.
[0026] Figure 2 This is a schematic diagram of the structure of the horizontal transfer ruler of the utility model.
[0027] Figure 3 This is a schematic diagram of the structure of the horizontal and vertical regulator components of the utility model.
[0028] Figure 4 This is a structural diagram of the tightening and alignment indicator of the utility model.
[0029] Figure 5This is a schematic diagram of the bottom leveling ruler support structure of the utility model.
[0030] Figure 6 It is a partial structural diagram of the utility model.
[0031] In the figure: 1. Horizontal transfer ruler; 2. Vertical transfer elevation rod; 3. Bottom level rod bearing; 4. Tighten the alignment ruler; 5. Tighten the indicator; 11. Half-width opener; 12. Horizontal supporter; 13. Leveling point of horizontal transfer ruler; 14. Top connection hole of vertical transfer elevation rod; 15. Clamping device locking screw; 16. Clamping device horizontal transfer ruler connector; 17. Top support screw; 21. Longitudinal adjustment screw; 22. Lateral adjustment screw; 23. Longitudinal adjustment fixing lock nut; 24. Column clamping ring; 25. Column clamping ring locking screw; 31. Bottom connection hole of vertical transfer elevation rod; 32. Bottom level rod supporter; 33. Leveling point of bottom level rod bearing; 34. Bottom level rod support screw; DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0033] Example: Figure 1-5 As shown, the utility model provides an elevation transfer solution: an elevation transfer device that locks the top connecting screw and the bottom connecting screw of the vertical elevation transfer rod to ensure that the indicators of each part are tightened in the correct position. If there is any deviation, the cause is analyzed and the scale is recorded to ensure that the fixed height of the Z-type elevation transfer ruler is consistent with the height before and after measurement.
[0034] The transfer device includes a horizontal transfer ruler 1, and the front end of the horizontal transfer ruler 1 is provided with an antenna clamping component 11 and a locking component 15, including a top support component 12; the top support component 12 includes a support screw 17, and the support screw 17 is rotated to adjust the horizontal bubble on the horizontal transfer ruler 1 to the level of the horizontal transfer ruler, and the clamping device locking screw 15 of the antenna clamping component is locked to ensure that the horizontal transfer ruler is stable.
[0035] Fix the column clamping ring 24 on the CORS observation pier, fix the vertical transfer elevation rod 2 on the clamping device on the horizontal and vertical adjusters, loosen the longitudinal adjustment fixing lock nut 23 (two on the left and right), screw in and out the longitudinal adjustment screw 21 (two on the left and right for synchronous adjustment), adjust the vertical transfer elevation rod 2 in the north-south direction, ensure it is vertical, and then lock the longitudinal adjustment fixing lock nut 23; after ensuring that the vertical transfer elevation rod 2 is vertical in the north-south direction, adjust the vertical transfer elevation rod 2 in the east-west direction through the horizontal adjustment screw 22 (loose on the left and tighten on the right, or tighten on the left and loose on the right for left and right support) to make the Z-type elevation transfer ruler vertical.
[0036] Fix the Z-type elevation transfer ruler by adjusting the bottom level ruler support screws.
[0037] By adopting the above technical solution, the level rod is placed on the leveling point supported by the bottom level rod to transfer the elevation.
[0038] Working principle: First, before and after observation using the Z-type height transfer ruler, the height difference from the top leveling point of the Z-type height transfer ruler to the bottom leveling point of the Z-type height transfer ruler should be measured on the Z-type height transfer ruler measuring platform. The difference should be less than 0.5 mm before and after measurement. The average of the before and after measurement is taken as the fixed height of the Z-type height transfer ruler and the observed temperature is recorded.
[0039] Before the joint measurement of the CORS station pier body, connect and lock the various parts of the device so that the tightening indicator is in the specified position to ensure that the fixed height of the Z-type elevation transfer ruler is consistent before and after the measurement. Before the measurement, place the Z-type elevation transfer ruler on the CORS station pier body and fix the Z-type elevation transfer ruler. Adjust the vertical elevation transfer rod through the longitudinal adjustment screw 21 and the transverse adjustment screw 22 of the transverse and longitudinal regulator to center the vertical circular level bubble and ensure that the Z-type elevation transfer ruler is vertical. Open the half-width opener 11 of the front antenna clamping device of the horizontal transfer ruler 1 to clamp the antenna connecting rod, adjust the support screw 17 to center the horizontal tube level bubble of the horizontal transfer ruler 1, ensure that the bottom amplifier of the GNSS antenna is equal to the elevation of the leveling point 13 on the horizontal transfer ruler 1, lock the antenna clamping device clamping screw 15, adjust the vertical elevation transfer rod vertically again through the longitudinal adjustment screw 21 and the transverse adjustment screw 22 of the transverse and longitudinal regulator, adjust the bottom level ruler supporting screw to fix the Z-type elevation transfer ruler. Place the level rod on the leveling point supported by the bottom level rod, measure together with the nearby leveling points, transfer the elevation to the leveling point supported by the bottom level rod, add the fixed height of the Z-type elevation transfer ruler, and it is the elevation of the amplifier at the bottom of the CORS station antenna, completing the work of transferring the 85 elevation to the CORS station antenna.
[0040] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims
1. A height joint measurement device, comprising a holding antenna connector assembly, a top horizontal transmission ruler (1) and an adjustment device, a vertical transmission height rod (2) and an adjustment device, a bottom leveling ruler bearing (3) and a top support assembly (12), characterized in that: The top horizontal transfer ruler (1) and the adjustment device are provided with a top support screw (17), the top horizontal transfer ruler (1) and the adjustment device are provided with a clamping device horizontal transfer ruler connector (16), and the outside of the clamping device horizontal transfer ruler connector (16) component is provided with a clamping device locking screw (15); The vertical transmission height rod (2) and the adjustment device are provided with a horizontal and vertical adjuster, and the horizontal and vertical adjuster is provided with a column clamping ring (24) for fixing the CORS column, and the column clamping ring (24) is provided with a top column clamping ring locking screw (25); The bottom leveling ruler support (3) is provided with a bottom supporting screw (34).
2. The height joint measurement device according to claim 1, characterized in that: The front end of the top horizontal transfer ruler (1) is provided with a clamping antenna connector assembly.
3. The height joint measurement device according to claim 1, characterized in that: A clamper locking screw (15) is provided on the outside of the clamping antenna connector assembly, and a support screw (17) is provided in the middle of one of the support assemblies (12).
4. The height joint measurement device according to claim 2, characterized in that: The top level transfer ruler (1) is provided with a level bubble of a level tube.
5. The height joint measurement device according to claim 1, characterized in that: The top level transfer ruler (1) is provided with a top leveling point.
6. The height joint measurement device according to claim 1, characterized in that: The vertical transmission height rod (2) and the regulating device include a horizontal and vertical regulator, and the horizontal and vertical regulator is equipped with a vertical regulating screw (21) and a horizontal regulating screw (22) for regulating the horizontal and vertical directions.
7. The elevation joint measurement device according to claim 1, characterized in that: The connection between the vertical transmission height rod (2) and the adjustment device is provided with a tightening marker (5) and a tightening indicator scale (4).
8. The height joint measurement device according to claim 2, characterized in that: The vertical transfer height rod (2) and the regulating device are provided with a circular level bubble to assist the horizontal and vertical regulators in adjusting the verticality of the vertical transfer height rod.
9. The height joint measurement device according to claim 1, characterized in that: The bottom leveling rod support (3) is provided with a bottom leveling point (33).
10. The height joint measurement device according to claim 1, characterized in that: The bottom level ruler support (3) is provided with a bottom supporting screw (34).