Simple vertical shaft measuring method based on Leica AT403

Abstract

The invention provides a Leica AT403-based simple vertical shaft measurement method, and belongs to the technical field of measurement, the Leica AT403-based simple vertical shaft measurement method comprises the following steps: setting up a working platform fixing instrument on the upper top surface of a vertical shaft cage, arranging a water retaining device and a light source, arranging anvils on the ground and underground, starting a scanner for scanning, and setting up the working platform fixing instrument on the upper top surface of the vertical shaft cage; a point cloud three-dimensional diagram is generated through built-in software to calculate coordinates, water retaining equipment is umbrellas, instruments are integrated with various accessories and have a wireless communication function, the method takes about 2 hours, the precision is higher than that of a traditional steel wire hanging measurement method, influences of underground water seepage, wind speed and dust are avoided, calculation is fast, and the problems that traditional measurement is low in efficiency, limited in precision and complex in calculation are solved. The production shutdown loss is reduced, the project progress and benefit are improved, and the accuracy and reliability of the measurement result are ensured.

Description

Technical Field

[0001] The invention belongs to the field of measurement technology, and particularly relates to a simple shaft measurement method based on Leica AT403. Background Art

[0002] With the rapid development of underground projects, such as subways, highway tunnels, high-speed railway tunnels, and underground mines, the task of connection measurement is becoming increasingly arduous. At present, there are many problems with traditional methods in shaft connection measurement. On the one hand, the traditional method is inefficient. The production unit has to stop work for one day each time it conducts shaft connection measurement, resulting in large losses. On the other hand, the traditional measurement method of hanging steel wire has limited accuracy and is easily affected by factors such as underground water seepage, wind speed, and dust. At the same time, the traditional method is more complicated in the calculation process. It is necessary to measure the length of the steel wire under the same steel wire tension, and it is also necessary to measure the distance with a steel ruler underground.

[0003] Therefore, based on the above technical problems, it is necessary to design a simple shaft measurement method based on Leica AT403, which effectively solves the problems in the prior art. This method takes less time and only takes about 2 hours to complete the continuous measurement, greatly reducing the losses caused by measurement shutdowns in production units. It has high accuracy and is much more accurate than the traditional wire hanging method. During measurement, all meteorological, temperature and other parameters can be set through the Leica AT403 scanner, and are not affected by underground water seepage, wind speed, and dust. The solution is fast and there is no need for complicated wire length measurement and underground steel ruler distance measurement operations like traditional methods. In addition, no matter how deep the shaft is, the continuous measurement problem can be solved with equal accuracy. Summary of the invention

[0004] The purpose of the present invention is to provide a simple shaft measurement method based on Leica AT403, aiming to solve the problem that the measurement efficiency in the prior art is low, the production unit has to stop work for one day each time to measure the shaft connection, resulting in large losses. On the other hand, the traditional measurement method of hanging steel wire has limited accuracy and is easily affected by factors such as underground water seepage, wind speed, dust, etc. At the same time, the traditional method is relatively complicated in the calculation process, and it is necessary to measure the length of the steel wire under the same steel wire tension, and it is also necessary to use a steel ruler to measure the distance underground.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A simple shaft measurement method based on Leica AT403 includes the following steps: S1, building a working platform on the top surface of the shaft cage to fix the Leica AT403 laser tracker, fixing a water retaining device above the instrument, and preparing a portable light source;

[0007] S2. Lay out three to four anvil plates with obvious marks on the ground, and measure the coordinates of the center points of the anvil plates through the points near the well;

[0008] S3. Three to four anvils are also placed near the underground wharf. The distance between the center points of each anvil is measured by a total station for comparison with the solution of the scan. Two anvils are placed under the two control points of the wharf by centering and leveling.

[0009] S4. Turn on the scanner and scan 360 degrees on the ground, then slowly open the cage to make it go down. During the descent, keep scanning the scanner until it reaches the bottom of the well and scans all the anvil signs arranged at the wharf well. If the wharf control point is far away, remove the scanner and keep scanning in the wharf well until the anvil sign at the far control point is scanned.

[0010] S5. Generate a point cloud 3D map through its own software and comprehensively calculate the coordinates of the control points of the wharf well.

[0011] As a preferred solution of the present invention, the water retaining device is an umbrella-type device.

[0012] As a preferred solution of the present invention, the Leica AT403 laser tracker integrates accessories such as a preview camera, a level, an environment monitor, and an infrared remote controller, and has a wireless communication function.

[0013] As a preferred solution of the present invention, the method takes about 2 hours to complete the shaft connection measurement.

[0014] As a preferred solution of the present invention, the method has higher accuracy than the traditional wire-hanging measurement method, and during measurement, the weather, temperature and other parameters can be set by the Leica AT403 scanner, and it is not affected by underground water seepage, wind speed and dust.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this solution, the simple shaft measurement method based on Leica AT403 can complete the shaft connection measurement in about 2 hours, which greatly shortens the measurement time compared with the traditional method. This reduces the losses caused by the production unit's shutdown due to measurement, allowing the production unit to complete the measurement task in a shorter time and resume normal construction or production activities as soon as possible, thereby increasing the overall progress and benefits of the project.

[0017] 2. In this solution, the Leica AT403 laser tracker uses laser technology for measurement, which has higher accuracy and stability and can reduce measurement errors; compared with the traditional wire hanging measurement method, it has higher accuracy;

[0018] During measurement, you can use the Leica AT403 scanner to set weather, temperature and other parameters to make more accurate corrections to the measurement results. For example, temperature changes will cause the instrument to expand and contract. By setting parameters, the scanner can automatically correct the measurement results, eliminate the influence of environmental factors, and further improve measurement accuracy.

[0019] It is not affected by underground water seepage, wind speed and dust, ensuring the stability and reliability of the measurement results.

[0020] 3. In this solution, there is no need to perform complicated wire length measurement and underground steel ruler distance measurement operations as in traditional methods. The point cloud 3D map is generated by the built-in software, and the coordinates of the control points of the wharf well are comprehensively solved. The solution process is faster and more scientific. Scientific solution methods and models are used, and multiple verifications and checks are carried out to improve the reliability of the solution results. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 A perspective view of the present invention;

[0023] Figure 2 It is a side view of the present invention.

[0024] In the figure: 1. Tripod support; 2. Leica AT403 laser tracker; 3. Controller. DETAILED DESCRIPTION

[0025] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0026] Example 1

[0027] See also Figure 1-Figure 2 , the present invention provides the following technical solutions:

[0028] A simple shaft measurement method based on Leica AT403, characterized in that it comprises the following steps: S1, building a working platform on the shaft cage for fixing the Leica AT403 laser tracker, fixing a water retaining device above the instrument, and preparing a portable light source;

[0029] S2. Lay out three to four anvil plates with obvious marks on the ground, and measure the coordinates of the center points of the anvil plates through the points near the well;

[0030] S3. Three to four anvils are also placed near the underground wharf. The distance between the center points of each anvil is measured by a total station for comparison with the solution of the scan. Two anvils are placed under the two control points of the wharf by centering and leveling.

[0031] S4. Turn on the scanner and scan 360 degrees on the ground, then slowly open the cage to make it go down. During the descent, keep scanning the scanner until it reaches the bottom of the well and scans all the anvil signs arranged at the wharf well. If the wharf control point is far away, remove the scanner and keep scanning in the wharf well until the anvil sign at the far control point is scanned.

[0032] S5. Generate a point cloud 3D map through its own software and comprehensively calculate the coordinates of the control points of the wharf well.

[0033] In a specific embodiment of the present invention, 1. Step S1: When building a working platform on the shaft cage, the stability and firmness of the platform should be ensured to prevent the measurement accuracy of the laser tracker from being affected by the shaking of the cage during the measurement process. When fixing the Leica AT403 laser tracker, a special fixing device can be used to ensure that the instrument will not move on the working platform. The selection of water retaining equipment should take into account its waterproof performance and the shielding effect on the laser tracker to effectively prevent the underground water seepage from damaging the instrument. At the same time, the prepared portable light source should have sufficient brightness and stability to provide good lighting conditions for the scanner in poor light conditions to ensure the scanning effect.

[0034] 2. Step S2: When laying out anvil plates with obvious signs on the ground, brightly colored and regular-shaped signs should be selected to facilitate scanner recognition. The number of anvil plates laid out should be between three and four to ensure the accuracy and reliability of the measurement. When measuring the coordinates of the center point through the near-well point, high-precision measuring instruments and methods should be used to ensure the accuracy of the coordinates. During the measurement process, attention should be paid to monitoring the measurement environment to avoid the influence of external factors on the measurement results.

[0035] 3. Step S3: When laying out anvil plates near the underground wharf, the actual situation of the wharf and the measurement requirements should be taken into consideration, and a suitable location should be selected for laying out. Similarly, the number of anvil plates laid out should also be between three and four to ensure the accuracy and reliability of the measurement. When laying out two anvil plates by centering and leveling under the two control points of the wharf well, the measurement specifications should be strictly followed to ensure that the position of the anvil plates is accurate. The centering and leveling process should be careful and serious to ensure the accuracy of subsequent measurements.

[0036] 4. Step S4: After turning on the scanner, a 360-degree scan should be performed on the ground to obtain the measurement data on the ground. During the scanning process, attention should be paid to the angle and position of the scanner to ensure that the scanning range covers all areas that need to be measured. Then, slowly open the cage and let it go down. During the descent process, the operator should pay close attention to the working status of the scanner to ensure that the scanner continues to scan. If any abnormality is found in the scanner, the cage should be stopped from descending in time, and inspection and processing should be carried out. When the cage descends to the bottom of the well, all the anvil signs laid out in the dock well should be scanned. If the dock control point is far away, the scanner can be removed and scanned in the dock well until the anvil sign of the farther control point is scanned. During the scanning process, attention should be paid to the moving speed and direction of the scanner to ensure the accuracy and completeness of the scanned data.

[0037] 5. Step S5: When generating a point cloud 3D map through the built-in software, appropriate software parameters and algorithms should be selected to ensure that the generated point cloud 3D map has high accuracy and reliability. When comprehensively solving the coordinates of the control points of the dock well, scientific solution methods and models should be used, taking into account the influence of various factors on the measurement results to ensure the accuracy of the coordinates. During the solution process, multiple verifications and checks should be performed to improve the reliability of the solution results. At the same time, the solution results should be compared and analyzed with the actual situation to discover and solve problems in a timely manner.

[0038] The measuring device consists of a tripod support frame 1, a tripod support frame; 2, a Leica AT403 laser tracker; 3, a controller;

[0039] For details, please refer to Figure 1-Figure 2 , the water retaining device is an umbrella-type device.

[0040] In this embodiment: Umbrella-type water-blocking equipment usually has a large shielding area, which can effectively block the underground water seepage from above for the Leica AT403 laser tracker. Its structure generally includes an openable umbrella surface and umbrella ribs supporting the umbrella surface. The umbrella surface can be made of materials with good waterproof performance, such as high-density waterproof fabric. This material can not only resist the impact of slight water flow, but also prevent water droplets from accumulating too much on the umbrella surface and dripping onto the instrument. The umbrella ribs should have sufficient strength and stability to ensure that they will not be deformed by slight shaking or airflow in the vertical shaft environment. They can be made of solid metal. The ribs are made of metal materials or high-strength plastic, and the connecting parts of the ribs should be specially treated to enhance their durability and reliability. When installing umbrella-type water-retaining equipment, they can be firmly installed in a suitable position above the working platform through special fixing devices to ensure that they will not be displaced or tilted during the up and down movement of the cage. At the same time, the opening and closing angles of the umbrella can be adjusted according to actual conditions to achieve the best water-retaining effect. In addition, in order to facilitate operation and maintenance, umbrella-type water-retaining equipment should be designed with a structure that is easy to disassemble and install, so that it can be quickly replaced or repaired when necessary.

[0041] For details, please refer to Figure 1-Figure 2 The Leica AT403 laser tracker integrates accessories such as a preview camera, a level, an environmental monitor, and an infrared remote controller, and has a wireless communication function.

[0042] In this embodiment: 1. Preview camera: Real-time observation of measurement scene: Before conducting shaft connection measurement, you can use the preview camera to check the situation of the measurement area in advance, including the location of the anvil plates arranged on the ground and underground, whether there are obstacles in the surrounding environment that affect the measurement, etc., so as to better plan the measurement path and adjust the measurement plan. Assisted positioning of targets: During the measurement process, the preview camera can more accurately locate the target point to be measured, thereby improving the accuracy and efficiency of the measurement. Especially for some distant or less obvious targets, the preview camera can help the operator quickly find and lock the target.

[0043] 2. Level meter: Ensure that the instrument is installed horizontally: The level meter can accurately display the horizontal state of the laser tracker. When installing the instrument, the operator can adjust the position of the work platform or the instrument according to the instructions of the level meter to ensure that the instrument is in a horizontal state, thereby ensuring the accuracy of the measurement results. Monitor the instrument status: During the measurement process, the level meter can monitor in real time whether the instrument is tilted due to cage shaking or other reasons. Once the tilt is found, it can be adjusted in time to avoid measurement errors caused by the tilt of the instrument.

[0044] 3. Environmental monitor: Monitoring environmental parameters: The environmental monitor can monitor the temperature, humidity, air pressure and other parameters in the measurement environment in real time. These parameters have a certain impact on the measurement accuracy of the laser tracker. By monitoring the environmental parameters, corresponding corrections can be made in the measurement results to improve the accuracy and reliability of the measurement. Warning of adverse environment: When the environmental parameters exceed the normal operating range of the laser tracker, the environmental monitor can issue a warning to remind the operator to take corresponding measures, such as suspending the measurement, adjusting the instrument settings or improving the measurement environment, to ensure the smooth progress of the measurement.

[0045] 4. Infrared remote control: remotely operate the instrument: in some cases where it is inconvenient to directly contact the instrument, such as when the cage is running in the shaft, the operator can remotely control the opening, closing, scanning and other operations of the laser tracker through the infrared remote control to improve the convenience and safety of operation. Improve work efficiency: using an infrared remote control can reduce the operator's walking and operation time during the measurement process, thereby improving work efficiency. Especially in some complex measurement environments, the infrared remote control allows the operator to control the instrument more flexibly and improve the efficiency and accuracy of the measurement.

[0046] 5. Wireless communication function: fully wireless operation: The wireless communication function eliminates the need to connect the laser tracker to data cables or other wired devices, achieving true fully wireless operation. This not only improves the portability of the instrument, but also reduces the inconvenience and safety hazards caused by cable connections. Convenient data transmission: Through the wireless communication function, the laser tracker can transmit the measurement data to a computer or other device in real time for processing and analysis, without the need to manually plug and unplug the data cable or copy the data, greatly improving the convenience and efficiency of data transmission. Remote monitoring and control: In some situations where remote monitoring and control are required, the wireless communication function allows operators to monitor and operate the laser tracker away from the measurement site, improving the flexibility and safety of the work.

[0047] For details, please refer to Figure 2 The method takes about 2 hours to complete the contact measurement.

[0048] In this embodiment: a simple shaft measurement method based on Leica AT403 can be completed in only about 2 hours, which greatly shortens the measurement time, reduces the impact of shutdown on production, and improves production efficiency. The production unit can complete the measurement task in a shorter time and resume normal construction or production activities as soon as possible, thereby increasing the overall progress and benefits of the project.

[0049] For details, please refer to Figure 1-Figure 2The accuracy of the method is higher than that of the traditional wire-hanging measurement method, and the weather, temperature and other parameters can be set through the Leica AT403 scanner during measurement, and it is not affected by underground water seepage, wind speed and dust.

[0050] In this embodiment: the simple shaft measurement method based on Leica AT403 can provide higher accuracy. The traditional wire hanging measurement is affected by many factors, such as the elasticity of the wire, the hanging method, the operating errors of the measurement personnel, etc. These factors will lead to greater uncertainty in the measurement results. The laser tracker uses laser technology for measurement, which has higher accuracy and stability, can reduce measurement errors, and improve measurement accuracy. By setting the weather, temperature and other parameters through the Leica AT403 scanner, the measurement results can be corrected more accurately. Environmental factors such as weather and temperature will affect the measurement results. For example, temperature changes will cause thermal expansion and contraction of the instrument, thereby affecting the measurement accuracy. By setting these parameters, the scanner can automatically correct the measurement results, eliminate the influence of environmental factors, and further improve the measurement accuracy.

[0051] The working principle and use process of the present invention: Preliminary preparation: Build a firm and stable working platform on the top surface of the shaft cage to ensure that the shaking of the cage during the measurement process will not affect the measurement accuracy of the laser tracker. Fix an umbrella-type water-blocking device above the instrument, select an umbrella with a large shielding area and made of a material with good waterproof performance (such as a high-density waterproof cloth) and umbrella ribs with sufficient strength and stability (which can be made of a solid metal material or high-strength plastic), and install them in a suitable position above the working platform through a special fixing device to prevent water seepage from damaging the instrument. The opening and closing angle can also be adjusted according to actual conditions to achieve the best water-blocking effect, and the equipment should be easy to disassemble and install for quick replacement or maintenance. Prepare a portable light source with sufficient brightness and stability to provide good lighting conditions for the scanner in poor light conditions to ensure the scanning effect.

[0052] Ground layout: Choose brightly colored and regular-shaped signs on the ground to lay out three to four anvil signs with obvious signs. Use high-precision measuring instruments and methods to measure the coordinates of the center point near the well point. During the measurement process, pay attention to monitoring the measurement environment to avoid the influence of external factors on the measurement results.

[0053] Placement near the underground wharf: Also choose a suitable location near the underground wharf to place three to four anvil signs with obvious signs. Place two anvil signs under the two control points of the wharf well through centering and leveling in strict accordance with the measurement specifications. The centering and leveling process should be careful to ensure the accuracy of subsequent measurements.

[0054] Scanning process: Turn on the scanner of the Leica AT403 laser tracker, first perform a 360-degree scan on the ground to obtain the measurement data on the ground, pay attention to the angle and position of the scanner to ensure that the scanning range covers all areas that need to be measured. Slowly open the cage and let it go down. During the descent, the operator pays close attention to the working status of the scanner to ensure that the scanner continues to scan. If any abnormality is found in the scanner, stop the cage from going down in time and check and deal with it. When the cage descends to the bottom of the well, scan all the anvil signs arranged in the dock well. If the dock control point is far away, you can remove the scanner and keep scanning in the dock well until you scan the anvil sign of the farther control point. Pay attention to the moving speed and direction of the scanner to ensure the accuracy and completeness of the scanned data.

[0055] Data processing: Generate point cloud 3D images through built-in software, select appropriate software parameters and algorithms to ensure that the generated point cloud 3D images have high accuracy and reliability. Comprehensively solve the control point coordinates of the dock well, use scientific solution methods and models, consider the impact of various factors on the measurement results, conduct multiple verifications and checks to improve the reliability of the solution results, and compare and analyze the solution results with the actual situation to discover and solve problems in a timely manner.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, 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 simple shaft measurement method based on Leica AT403, characterized in that: The method comprises the following steps: S1, building a working platform on the top surface of the shaft cage to fix the Leica AT403 laser tracker, fixing a water retaining device above the instrument, and preparing a portable light source; S2. Lay out three to four anvil plates with obvious marks on the ground, and measure the coordinates of the center points of the anvil plates through the points near the well; S3. Three to four anvils are also placed near the underground wharf. The distance between the center points of each anvil is measured by a total station for comparison with the solution of the scan. Two anvils are placed under the two control points of the wharf by centering and leveling. S4. Turn on the scanner and scan 360 degrees on the ground, then slowly open the cage to make it go down. During the descent, keep scanning the scanner until it reaches the bottom of the well and scans all the anvil signs arranged at the wharf well. If the wharf control point is far away, remove the scanner and keep scanning in the wharf well until the anvil sign at the far control point is scanned. S5. Generate a point cloud 3D map through its own software and comprehensively calculate the coordinates of the control points of the wharf well.

2. The simple shaft measurement method based on Leica AT403 according to claim 1, characterized in that: The water retaining device is an umbrella-type device.

3. The simple shaft measurement method based on Leica AT403 according to claim 1 is characterized in that: The Leica AT403 laser tracker integrates accessories such as a preview camera, a level, an environmental monitor, and an infrared remote controller, and has a wireless communication function.

4. The simple shaft measurement method based on Leica AT403 according to claim 1 is characterized in that: The method takes about 2 hours to complete the contact measurement.

5. The simple shaft measurement method based on Leica AT403 according to claim 1 is characterized in that: The method has higher accuracy than the traditional wire-hanging measurement method, and during measurement, the weather, temperature and other parameters can be set through the Leica AT403 scanner, and it is not affected by underground water seepage, wind speed and dust.

Images