A hydropower plant spiral case seat ring installation monitoring system, method, device and medium

Abstract

The application discloses a hydropower station spiral case seat ring installation monitoring system, method, equipment and medium, relates to the automatic monitoring technical field, and the system comprises a data acquisition device and a data processing device electrically connected with the data acquisition device, the data acquisition device is used for collecting the state data of the target spiral case seat ring in real time and sending the real-time collected state data to the data processing device, and the state data at least includes the displacement of each measuring point on the target spiral case seat ring and the concrete pouring height of each measuring point; the data processing device is used for: analyzing the received state data to obtain first data, the first data includes attitude data and concrete data; detecting whether at least one data in the first data is abnormal, if abnormal, alarming the abnormal data in the first data, and giving concrete pouring adjustment suggestions; the application can better monitor the deviation and floating state of the spiral case seat ring, thereby improving the installation precision of the spiral case seat ring.

Description

Technical Field

[0001] This application relates to the field of automatic monitoring technology, and in particular to a monitoring system, method, equipment and medium for the installation of a spiral casing mounting ring in a hydropower station. Background Technology

[0002] In hydropower projects, the spiral casing retaining ring is one of the components with the highest installation precision requirements, as its accuracy directly affects the power plant's power generation efficiency and safe operation. During installation, the spiral casing retaining ring is first fixed to the foundation concrete, and then concrete is poured around its perimeter. However, the pouring of this outer concrete can cause the spiral casing retaining ring to shift and float. Therefore, real-time monitoring of the spiral casing retaining ring's shift and float is necessary during the outer concrete pouring process.

[0003] Currently, the installation of the volute housing ring relies primarily on surveyors manually measuring its offset and upward movement on-site using mechanical gauges. These measurements are then recorded and relayed to technicians via telephone. Technicians analyze the data, assess the overall offset and upward movement of the volute housing ring based on experience, and make decisions regarding adjustments to concrete pouring speed, pouring direction, and even work stoppages. However, manual on-site measurement cannot adequately monitor the offset and upward movement of the volute housing ring, resulting in low installation accuracy. Summary of the Invention

[0004] The purpose of this application is to provide a monitoring system, method, equipment and medium for the installation of a spiral casing seat ring in a hydropower station, which can better monitor the offset and floating state of the spiral casing seat ring, thereby improving the installation accuracy of the spiral casing seat ring.

[0005] To achieve the above objectives, this application provides the following solution: In a first aspect, this application provides a monitoring system for the installation of a spiral casing mounting ring in a hydropower station, comprising a data acquisition device and a data processing device electrically connected to the data acquisition device, wherein: The data acquisition device is used to collect the status data of the target volute ring in real time and send the real-time collected status data to the data processing device. The status data includes at least the displacement of each measuring point on the target volute ring and the concrete pouring height outside the area where each measuring point is located. The data processing device is used for: The received state data of the target volute ring is analyzed to obtain first data; wherein, the first data includes attitude data and concrete data; The system detects whether at least one data point in the first data is abnormal. If an abnormality is detected, an alarm is triggered for the abnormal data in the first data, and suggestions for adjusting the concrete pouring are provided.

[0006] Optionally, the data acquisition device specifically includes a displacement monitoring device and a concrete height monitoring device. The measurement data output terminals of the displacement monitoring device and the concrete height monitoring device are electrically connected to the measurement data input terminal of the data processing device, wherein: The displacement monitoring device is used to measure the displacement of any measuring point on the target volute ring and send the measured displacement data to the data processing device; The concrete height monitoring device is used to measure the height of the concrete poured outside each measuring point on the target volute seat ring and send the measured height data to the data processing device.

[0007] Optionally, the data acquisition device is also used to collect the water pressure inside the target volute seat ring in real time; The data processing device is further configured to: Detect whether the water pressure inside the target volute seat ring is abnormal. If it is abnormal, an alarm is triggered for the abnormal water pressure and a water pressure adjustment suggestion is given. The data acquisition device also includes a water pressure monitoring device, and the measurement data output terminal of the water pressure monitoring device is electrically connected to the measurement data input terminal of the data processing device; The water pressure monitoring device is used to measure the water pressure inside the volute of the target volute ring and send the measured water pressure data to the data processing device.

[0008] Optionally, the displacement of any of the measuring points includes radial displacement and axial displacement; The displacement monitoring device specifically includes a first intelligent dial indicator and a second intelligent dial indicator, wherein: The first intelligent dial indicator is installed on the embedded part of the foundation concrete of the target volute seat ring and is located inside the target volute seat ring. The pointer of the first intelligent dial indicator is horizontally pressed against the inner ring wall surface of any measuring point of the target volute seat ring, and is used to measure the radial displacement of the measuring point. The second intelligent dial indicator is installed on the embedded part of the foundation concrete of the target volute seat ring and is located above the target volute seat ring. The pointer of the second intelligent dial indicator is perpendicular to the top of the area where the measuring point is located, and is used to measure the axial displacement of the measuring point.

[0009] Optionally, the attitude data includes the current total radial displacement and the current total axial displacement, and the concrete data includes at least one of the concrete height rise rate and the concrete height difference; The data processing device is further configured to: Analyze all radial displacement data measured by the first intelligent dial gauge collected at the same time to obtain the current radial offset of the target volute ring in the current radial offset direction; The historical radial displacement and current radial displacement of the target volute ring in the current radial offset direction are summed to obtain the total current radial displacement of the target volute ring in the current radial offset direction; By analyzing the measurement data of all the second intelligent dial gauges collected at the same time, the current axial offset of the target volute ring in the current axial offset direction is obtained; The historical axial displacement and the current axial displacement of the target volute seat ring in the current axial offset direction are summed to obtain the total current axial displacement of the target volute seat ring in the current axial offset direction; Based on the concrete height of each measuring point at different times within the first target time period, calculate the concrete height difference of each measuring point within the first target time period, and based on the concrete height difference of each measuring point within the first target time period, calculate the concrete height rise rate of each measuring point within the first target time period. Based on the concrete height of all measuring points collected at the same time, calculate the concrete height difference between any two measuring points.

[0010] Optionally, the data processing apparatus is further configured to: If the current total radial displacement, current total axial offset, concrete height rise rate at any measuring point, and concrete height difference between any two measuring points are all normal: Based on the historical radial displacement and the current radial displacement in the current radial offset direction, the radial displacement of the target volute ring in the current radial offset direction in the next second target time period is predicted to obtain the predicted radial displacement. The historical radial displacement, current radial displacement, and predicted radial displacement of the target volute ring in the current radial offset direction are summed to obtain the total predicted radial displacement of the target volute ring in the current radial offset direction. Based on the historical axial displacement and the current axial displacement in the current axial offset direction, the axial displacement of the target volute ring in the current axial offset direction in the next second target time period is predicted to obtain the predicted axial displacement. The historical axial displacement, current axial displacement, and predicted axial displacement of the target volute seat ring in the current axial offset direction are summed to obtain the total predicted axial displacement of the target volute seat ring in the current axial offset direction. Based on the historical data of the concrete height rise rate at each measuring point, the concrete height rise rate at each measuring point in the next second target time period is predicted, and the predicted height rise rate at each measuring point is obtained. Based on historical data of concrete elevation difference between any two measuring points, predict the concrete elevation difference between any two measuring points in the next second target time period, and obtain the predicted elevation difference between any two measuring points. The system detects whether at least one of the third data of the target volute seat ring is abnormal. If abnormal, it issues an early warning for the abnormal data in the third data and provides suggestions for adjusting the concrete pouring. The third data includes the predicted total radial displacement, the predicted total axial offset, the predicted height rise rate of each measuring point, and the predicted height difference between any two measuring points.

[0011] Optionally, the concrete pouring adjustment suggestions include suggestions for adjusting the concrete pouring speed and / or suggestions for adjusting the concrete pouring position; The data processing device is further configured to: If the current total radial offset is greater than the preset first threshold, the current total radial offset is considered abnormal. If the current total axial offset is greater than the preset second threshold, the current total axial offset is considered abnormal. If the concrete height rise rate at any measuring point is greater than the preset third threshold, then the concrete height rise rate at that measuring point is considered abnormal. If the concrete height difference between any two measuring points is greater than the preset fourth threshold, then the concrete height difference between the two measuring points is considered abnormal. If the predicted total radial offset is greater than the preset fifth threshold, the predicted total radial offset is considered abnormal. If the predicted total axial offset is greater than the preset sixth threshold, the predicted total axial offset is considered abnormal. If the predicted height rise rate of any measuring point is greater than the preset seventh threshold, then the predicted height rise rate of the measuring point is considered abnormal. If the predicted height difference between any two measuring points is greater than the preset eighth threshold, then the predicted height difference between the two measuring points is considered abnormal. Analyze the causes of the abnormal data, and based on these causes, provide suggestions for adjusting the concrete pouring speed and / or the concrete pouring orientation.

[0012] Secondly, this application provides a method for monitoring the installation of a spiral casing seat ring in a hydropower station, applicable to a data processing device of the hydropower station spiral casing seat ring installation monitoring system described in any of the above claims, the method comprising: Receive real-time acquired status data of the target volute ring, the status data including at least the displacement of each measuring point on the target volute ring and the concrete pouring height of each measuring point; The received state data of the target volute ring is analyzed to obtain first data; wherein, the first data includes attitude data and concrete data; Detect whether at least one data point in the first data is abnormal; If an anomaly is detected, an alarm will be triggered for the abnormal data in the first set of data, and suggestions for adjusting the concrete pouring will be provided.

[0013] Thirdly, this application provides a computer device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to perform the steps of the above-described hydropower station spiral casing mounting monitoring method.

[0014] Fourthly, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the above-described hydropower station spiral casing mounting ring installation monitoring method.

[0015] According to the specific embodiments provided in this application, the following technical effects are disclosed: This application provides a monitoring system, method, equipment, and medium for the installation of a spiral casing seat ring in a hydropower station. The system uses a data acquisition device to collect real-time status data of the target spiral casing seat ring and sends this data (including at least the displacement of each measuring point on the target spiral casing seat ring and the concrete pouring height outside the area where each measuring point is located) to a data processing device. This achieves automatic data acquisition, eliminating the need for manual on-site measurement and feedback to technicians. It avoids the problems associated with manual on-site measurement, such as significant safety risks for personnel and the need for continuous manual measurement, which consumes considerable manpower. Furthermore, manual data reading using mechanical meters is prone to errors and inconsistent data recording intervals, resulting in low accuracy in monitoring the displacement and uplift of the spiral casing seat ring. Additionally, it addresses the issue of delayed data reading and feedback due to human negligence, which can lead to undetected problems and excessive displacement or uplift of the spiral casing seat ring. The problem is that the size of the target volute ring is far beyond the standard specifications, requiring rework and causing significant economic losses. This paper addresses this issue by using a data processing device to analyze the received target volute ring's state data, obtaining first data (including attitude data and concrete data). The device detects at least one abnormality in the first data; if an abnormality is found, an alarm is triggered, and concrete pouring adjustment suggestions are provided to bring the abnormal data within the normal range. This achieves automatic analysis of the target volute ring's state data, automatic detection of abnormal data, and automatic generation of concrete pouring adjustment suggestions. It eliminates the need for manual analysis of measurement data, judgment of the overall attitude (offset) of the volute ring, and provision of concrete pouring adjustment measures. This avoids the problem of low monitoring accuracy of the volute ring's offset and floating, which relies on the individual technical skills of technicians for judging the overall attitude of the volute ring and providing concrete pouring adjustment measures.

[0016] In summary, the embodiments of this application can better monitor the offset and floating state of the volute housing ring, thereby improving the installation accuracy of the volute housing ring. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a hydropower station spiral casing mounting ring installation monitoring system according to one embodiment of this application; Figure 2 A three-dimensional schematic diagram of a volute housing mounting ring for a hydropower station volute housing installation monitoring system provided in one embodiment of this application; Figure 3 A schematic diagram of axial X-axis monitoring data of a hydropower station spiral casing seat ring installation monitoring system provided in an embodiment of this application; Figure 4 A schematic diagram of axial Y-axis monitoring data of a hydropower station spiral casing seat ring installation monitoring system provided in an embodiment of this application; Figure 5 A schematic diagram of radial X-ray monitoring data of a hydropower station spiral casing mounting ring installation monitoring system provided in an embodiment of this application; Figure 6 A schematic diagram of radial Y-monitoring data of a hydropower station spiral casing seat ring installation monitoring system provided in an embodiment of this application; Figure 7 A flowchart illustrating a monitoring method for the installation of a spiral casing mounting ring in a hydropower station, provided as an embodiment of this application; Figure 8 This is a schematic diagram of the structure of a computer device provided in an embodiment of this application. Detailed Implementation

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

[0020] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] In hydropower projects, the spiral casing retaining ring is one of the components with the highest installation precision requirements, as its installation accuracy directly affects the power plant's power generation efficiency and safe operation. During installation, the spiral casing retaining ring is first fixed to the foundation concrete, and then concrete is poured around its perimeter. However, the pouring of this outer concrete can cause the retaining ring to shift and float. Therefore, real-time monitoring of the spiral casing retaining ring's shift and float is necessary during the pouring of the outer concrete.

[0022] Once the volute housing seat ring is in place and fixed, flowing concrete will be poured around it. This concrete will lift the seat ring, causing it to float slightly upwards. Simultaneously, the lateral pressure of the concrete will cause a slight lateral shift in the seat ring. However, this shift is on the order of millimeters and is imperceptible to the naked eye. Therefore, it must be measured using tools such as dial indicators. This is to control the concrete pouring speed, preventing excessively rapid pouring that could cause the seat ring to float axially; and to pay attention to the pouring position to avoid asymmetrical pouring on both sides of the seat ring, which could lead to radial shift.

[0023] Currently, the main method relies on surveyors manually measuring the offset and upward movement of the volute housing ring on-site using mechanical gauges. The measured data is then recorded and relayed to technicians by phone. Technicians analyze the data, assess the overall offset and upward movement of the volute housing ring based on experience, and make decisions regarding adjustments to concrete pouring speed, pouring direction, and even work stoppages. However, manual on-site measurement has five drawbacks that prevent accurate monitoring of the volute housing ring's offset (radial offset and axial upward movement), resulting in low installation accuracy.

[0024] First, data collection relies on personnel to measure inside the volute ring. Due to the complex environment at the construction site, the surveyors not only face significant safety risks, but also need to conduct on-site measurements continuously by hand, which consumes human resources.

[0025] The spiral casing retaining ring of a hydroelectric power station has a large structural dimension, reaching up to 10 meters in small power stations and up to 30 meters in large power stations. As the foundation and benchmark for the entire unit installation, the retaining ring requires extremely high installation precision, necessitating the measurement of deviations. Because the retaining ring is surrounded by the spiral casing, during concrete pouring, personnel must traverse the external steel mesh of the spiral casing to reach its center and use a mechanical dial indicator to measure the ring's offset and upward movement, making this a highly dangerous task. Furthermore, during concrete pouring, manual measurement of the radial offset and axial upward movement of each measuring point on the retaining ring at a specific frequency is required, consuming significant manpower.

[0026] Secondly, manual reading of data using mechanical instruments results in significant errors and arbitrary data recording intervals. Furthermore, the analysis of measurement data, the judgment of the overall offset and floating status of the volute ring, and the implementation of construction adjustment measures all depend on the individual technical skills of the technicians, leading to low accuracy in monitoring the offset and floating status of the volute ring.

[0027] Third, if monitoring data is not read and fed back in a timely manner due to human negligence, and problems are not detected in time, the volute seat ring may shift and float too much, far exceeding the standard specifications, requiring rework and causing significant economic losses.

[0028] During the pouring of concrete to encase the spiral casing ring of a hydropower station, due to the negligence of the on-site data measurement personnel, although the dial gauge measurement data was read in a timely manner, the feedback was not timely. As a result, the technicians failed to detect the abnormality in time, causing the radial offset and axial upward floating of the spiral casing ring to be too large, far exceeding the standard specifications. This resulted in 40 days of rework and direct economic losses of approximately 60 million yuan.

[0029] Fourth, the display method is too simple, with no intuitive icons to reflect the trend of data changes, and it is impossible to show the complete state of the changes of the volute ring through visualization.

[0030] Fifth, the inability to directly provide adjustment suggestions for on-site construction leads to a lag in on-site construction adjustment measures.

[0031] Because it takes time for technicians to analyze the data measured by on-site surveyors and find anomalies, and then give construction adjustment measures (such as measures to adjust the concrete pouring speed and pouring direction) or make a decision to stop work based on their personal experience, on-site construction adjustment measures will be delayed.

[0032] To address the issue that manual on-site measurements cannot adequately monitor the offset and floating state of the volute housing ring, resulting in low installation accuracy, an exemplary embodiment is provided, such as... Figure 1 As shown, a monitoring system for the installation of a spiral casing ring in a hydropower station is provided, including a data acquisition device 1 and a data processing device 2 electrically connected to the data acquisition device 1.

[0033] The data acquisition device 1 is used to collect the real-time status data of the target volute ring and send the collected status data to the data processing device 2. This status data includes at least the displacement of each measuring point on the target volute ring and the concrete pouring height outside the area where each measuring point is located.

[0034] The target volute seat ring refers to the volute seat ring being monitored. Multiple measuring points are set on the target volute seat ring to accurately monitor its state data. These measuring points can be evenly distributed across the target volute seat ring to improve monitoring accuracy.

[0035] The data processing device 2 is used to: analyze the received state data of the target volute seat ring to obtain first data, which includes the attitude data of the target volute seat ring and concrete data; detect whether at least one data in the first data is abnormal; if abnormal, alarm the abnormal data in the first data and provide concrete pouring adjustment suggestions to guide technicians to make decisions on adjusting or stopping concrete pouring, thereby adjusting the abnormal data in the first data to the normal range.

[0036] Adjusting abnormal data in the first data to the normal range means adjusting abnormal data in the first data to the range of normal construction allowable / feasible posture data and / or concrete data.

[0037] In this embodiment, a data acquisition device collects the real-time status data of the target volute ring and sends the collected status data (including at least the displacement of each measuring point on the target volute ring and the concrete pouring height outside the area where each measuring point is located) to the data processing device. This achieves automatic data acquisition, eliminating the need for manual on-site measurement and feedback of the data to technicians. It avoids the significant safety risks faced by measurement personnel and the manpower-intensive nature of manual on-site measurements. Furthermore, manual data reading using mechanical meters is prone to errors and inconsistent data recording intervals, resulting in low accuracy in monitoring the volute ring's offset and upward movement. Additionally, if human negligence leads to untimely data reading and feedback, problems may not be detected promptly, resulting in excessive volute ring offset and upward movement far exceeding standard specifications, requiring rework. The previous method involved analyzing the received target volute ring's state data using a data processing device to obtain first data (including attitude data and concrete data). It then detected at least one abnormality in the first data. If an abnormality was found, an alarm was triggered, and concrete pouring adjustment suggestions were provided to bring the abnormal data back to the normal range. This method automatically analyzes the target volute ring's state data, automatically detects abnormal data, and automatically generates concrete pouring adjustment suggestions. It eliminates the need for manual analysis of measurement data, judgment of the overall attitude (offset) of the volute ring, and provision of concrete pouring adjustment measures. This avoids the problem of low monitoring accuracy for the volute ring's offset and floating, which relies on the individual technical skills of technicians for judging the overall attitude of the volute ring and providing concrete pouring adjustment measures.

[0038] In summary, the embodiments of this application can better monitor the offset and floating state of the volute housing ring, thereby improving the installation accuracy of the volute housing ring.

[0039] In another exemplary embodiment of this application, in order to achieve accurate measurement of state data, the data acquisition device 1 specifically includes a displacement monitoring device 11 and a concrete height monitoring device 12. The measurement data output terminal of the displacement monitoring device 11 and the measurement data output terminal of the concrete height monitoring device 12 are electrically connected to the measurement data input terminal of the data processing device 2.

[0040] The displacement monitoring device 11 is used to measure the displacement of any measuring point on the target volute ring and send the measured displacement data to the data processing device 2. The concrete height monitoring device 12 is used to measure the concrete height at each measuring point on the target volute ring and send the measured height data to the data processing device 2. The concrete height at each measuring point refers to the height of the concrete poured outside each measuring point.

[0041] In another exemplary embodiment of this application, in order to avoid the volute being deformed by external concrete and affecting the structural safety and installation accuracy of the volute, the volute seat ring needs to be filled with water and kept at a certain water pressure (such as about 3-5 MPa) during the installation process to simulate the working conditions when the volute is running normally. In order to avoid the installation accuracy of the volute seat ring being affected by the unsuitable water pressure inside the volute seat ring at this time (too high or too low), the above-mentioned state data also includes the water pressure inside the target volute seat ring.

[0042] Accordingly, the data processing device 2 is also used to detect whether the water pressure inside the target volute seat ring is abnormal. If it is abnormal, an alarm is triggered for the abnormal water pressure and a water pressure adjustment suggestion is given.

[0043] In this embodiment of the application, detecting whether the water pressure inside the target volute seat ring is abnormal means detecting whether the water pressure inside the target volute seat ring exceeds the set water pressure range. If the water pressure inside the target volute seat ring is lower than the lower limit of the set water pressure range, it is considered that the water pressure is too low. If the water pressure inside the target volute seat ring is higher than the lower limit of the set water pressure range, it is considered that the water pressure is too high.

[0044] The alarm function for abnormal water pressure and the suggestion to adjust the water pressure mean that if the water pressure is too high, an alarm will be triggered and a suggestion to reduce the water pressure will be given; if the water pressure is too low, an alarm will be triggered and a suggestion to increase the water pressure will be given.

[0045] In another exemplary embodiment of this application, in order to accurately monitor the water pressure inside the target volute seat ring, the data acquisition device 1 further includes a water pressure monitoring device 13. The measurement data output terminal of the water pressure monitoring device 13 is electrically connected to the measurement data input terminal of the data processing device 2. The water pressure monitoring device 13 is used to measure the water pressure inside the volute of the target volute seat ring and send the measured water pressure data to the data processing device 2.

[0046] In another exemplary embodiment of this application, the displacement of any of the above-mentioned measuring points includes radial displacement and axial displacement. Accordingly, the displacement monitoring device 11 specifically includes a first intelligent dial indicator 16 and a second intelligent dial indicator 17. The measurement data output terminals of the first intelligent dial indicator 16 and the second intelligent dial indicator 17 are electrically connected to the measurement data input terminal of the data processing device 2. Wherein: The first intelligent dial indicator 16 is installed on the embedded part of the foundation concrete of the target volute seat ring and is located above the target volute seat ring. The pointer of the first intelligent dial indicator 16 is perpendicular to the top of the area where any measuring point of the target volute seat ring is located, and is used to measure the radial displacement of the first measuring point.

[0047] The second intelligent dial indicator 17 is installed on the embedded part of the foundation concrete of the target volute seat ring and is located inside the inner ring of the target volute seat ring. The pointer of the second intelligent dial indicator 17 is horizontally pressed against the inner ring wall of the area where the measuring point is located, and is used to measure the axial displacement of the measuring point.

[0048] In another exemplary embodiment of this application, in order to achieve automatic monitoring of concrete height and improve the measurement accuracy of concrete height, the concrete height monitoring device 12 adopts a laser rangefinder. The laser rangefinder is installed at a fixed position above the target volute seat ring, and the measurement data output terminal of the laser rangefinder is electrically connected to the measurement data input terminal of the data processing device 2.

[0049] In this embodiment, the laser ranging device is installed at a fixed position above the target volute seat ring, which means that the laser ranging device is installed above the concrete surrounding the measuring point.

[0050] If the laser rangefinder is installed diagonally above the concrete surrounding the measuring point, the laser rangefinder emits a laser pulse to the concrete surface surrounding the measuring point and obtains the return time of the laser pulse. Based on this return time, the straight-line distance between the laser rangefinder and the concrete surface surrounding any measuring point is obtained. Then, the vertical distance between the laser rangefinder and the concrete surface surrounding the measuring point is calculated using this straight-line distance and the angle of the laser pulse emitted by the laser rangefinder. Finally, the vertical distance is subtracted from the installation height of the laser rangefinder to obtain the height of the concrete surrounding the measuring point measured by the laser rangefinder.

[0051] If the laser rangefinder is installed directly above the concrete surrounding the measuring point, the laser rangefinder emits a laser pulse to the concrete surface surrounding the measuring point and obtains the return time of the laser pulse. Based on this return time, the vertical distance between the laser rangefinder and the concrete surface surrounding any measuring point is obtained. Then, the vertical distance is subtracted from the installation height of the laser rangefinder to obtain the height of the concrete surrounding the measuring point measured by the laser rangefinder.

[0052] The embodiments of this application do not limit the specific structure of the laser ranging device, and can be set according to actual needs. For example, the laser ranging device can be a laser rangefinder.

[0053] If the emission angle of the laser rangefinder is fixed and cannot be adjusted, then the number of laser rangefinders is the same as the number of measuring points, and each laser rangefinder is used to measure the height of the concrete surrounding the corresponding measuring point.

[0054] If the emission angle of the laser rangefinder is adjustable, that is, if the laser rangefinder integrates a motor-driven gimbal, the movement of the gimbal by the motor drives the laser emitter and laser receiver to move and adjust the emission angle of the laser pulse, then the number of laser rangefinders can be less than the number of measuring points. When measuring the height of concrete according to the set measurement frequency, each laser rangefinder can measure the height of concrete around the corresponding number of measuring points in sequence.

[0055] In another exemplary embodiment of this application, in order to realize automatic monitoring of the water pressure inside the target volute seat ring, the water pressure monitoring device 13 includes at least a pressure transmitter. The pressure transmitter is installed inside the target volute seat ring, and the measurement data output terminal of the pressure transmitter is electrically connected to the measurement data input terminal of the data processing device 2.

[0056] In this embodiment, the pressure transmitter can be installed on the end cap (plug) of the water inlet of the target volute ring. The water pressure monitoring device 13 may also include a pressure gauge so that on-site workers can obtain the real-time water pressure inside the target volute ring when adjusting the water pressure.

[0057] In another exemplary embodiment of this application, the above-mentioned attitude data includes the current total radial displacement and the current total axial displacement.

[0058] Accordingly, the data processing device 2 is also used to: analyze the radial displacement data measured by all the first intelligent dial gauges 16 collected at the same time to obtain the current radial offset of the target volute seat ring in the current radial offset direction; sum the historical radial displacement and the current radial offset of the target volute seat ring in the current radial offset direction to obtain the total current radial displacement of the target volute seat ring in the current radial offset direction; analyze the measurement data of all the second intelligent dial gauges 17 collected at the same time to obtain the current axial offset of the target volute seat ring in the current axial offset direction; sum the historical axial displacement and the current axial offset of the target volute seat ring in the current axial offset direction to obtain the total current axial displacement of the target volute seat ring in the current axial offset direction.

[0059] For example, if the target volute seat ring floats up 0.3mm on the left and 0.6mm on the right, it can be seen that the target volute seat ring is tilted to the upper left. During installation, the target volute seat ring should be kept as level as possible. At this time, the posture of the target volute seat ring can be adjusted by adjusting the pouring speed or pouring direction.

[0060] In this embodiment of the application, the radial displacement data measured by all the first intelligent dial gauges 16 collected at the same time are analyzed to obtain the current radial offset of the target volute ring in the current radial offset direction. This means that the current radial offset direction of the target volute ring and its current radial offset in the current radial offset direction are determined based on the positive and negative values ​​of the real-time radial displacement data measured by all the first intelligent dial gauges 16.

[0061] Specifically, a two-dimensional XY coordinate system can be established in the radial direction of the target volute ring, with the center point of the target volute ring as the origin O. Here, the positive X-axis is defined as right, the negative X-axis as left, the positive Y-axis as forward, and the negative Y-axis as backward. The compression direction of the first intelligent dial indicator 16 can be defined as positive, and the extension direction as negative. Therefore, the current radial offset direction of the target volute ring can be determined by the compression and extension directions of the first intelligent dial indicator 16, and the current radial offset amount of the target volute ring in the current radial offset direction can be determined by the compression and extension amounts of the first intelligent dial indicator 16.

[0062] The number of measuring points on the target volute seat ring is at least 4. If 4 measuring points are set, and the 4 measuring points are set in the front, back, left and right positions of the target volute seat ring, then the current radial offset direction of the target volute seat ring is determined by the compression and elongation direction of the pins of the 4 first intelligent dial gauges 16, and the current radial offset of the target volute seat ring in the current radial offset direction is determined by the compression and elongation of the pins of the first intelligent dial gauges 16. Specifically, the following steps (1) to (1) are included, wherein: Step (1): If only one first intelligent dial indicator 16 has a compressed pin, then the current radial offset direction of the target volute seat ring is the compression direction of the pin of the first intelligent dial indicator 16, and the current radial offset of the target volute seat ring in the current radial offset direction is the compression amount of the pin of the first intelligent dial indicator 16.

[0063] Step (2): If the ejector pins of two adjacent first intelligent dial gauges 16 are compressed at the same time, the current radial offset direction of the target volute seat ring is the resultant vector direction of the compression directions of the ejector pins of the two first intelligent dial gauges 16, and the current radial offset amount in the current radial offset direction is the resultant vector length of the compression amount of the ejector pins of the two first intelligent dial gauges 16.

[0064] For example, if the pins of the two first intelligent dial indicators 16 located on the right and front are compressed simultaneously, and the compression amount of the first intelligent dial indicator 16 on the right is 0.01mm and the compression amount of the first intelligent dial indicator 16 located in front is 0.02mm, then the current radial offset direction is the resultant vector direction of the compression directions of the pins of these two first intelligent dial indicators 16, that is, the angle between the current radial offset direction and the negative X-axis direction is... θ 1, and tan θ 1 = 0.02 / 0.01 = 2, the current radial offset in the current radial offset direction is the resultant vector length, that is, the current radial offset in the current radial offset direction is... .

[0065] Analyzing all the axial displacement data measured by the second intelligent dial gauge 17 collected at the same time, the current axial offset of the target volute seat ring in the current axial offset direction is obtained. This means determining the current axial offset direction of the target volute seat ring and its current axial offset in the current axial offset direction based on the positive and negative values ​​of the real-time axial displacement data measured by all the second intelligent dial gauges 17.

[0066] Specifically, the compression direction of the pin of the second intelligent dial indicator 17 can be defined as positive and the elongation direction as negative in the axial direction of the target volute seat ring. Then, the current axial offset direction of the target volute seat ring can be determined by the compression and elongation direction of the pin of the second intelligent dial indicator 17, and the current axial offset of the target volute seat ring in the current axial offset direction can be determined by the compression amount or elongation amount of the pin of the second intelligent dial indicator 17.

[0067] The target volute seat ring has at least four measuring points. If four measuring points are set, they are positioned at the front, rear, left, and right sides of the target volute seat ring. The current axial offset direction of the target volute seat ring is determined by the compression / elongation direction and compression / elongation amount of the pin of the second intelligent dial indicator 17. The current axial offset amount of the target volute seat ring in the current axial offset direction is determined by the compression / elongation amount of the pin of the second intelligent dial indicator 17. Specifically, this includes: If the compression of the pin of the second intelligent dial indicator 17 located in the first position is the largest, that is, the first position is raised more axially, then the current axial offset direction of the measuring point is tilted upward in the first position, and the compression rate of the second intelligent dial indicator 17 located in the first position is the current axial offset of the target volute ring in the current axial offset direction; wherein, the first position includes the front, rear, left or right position.

[0068] For example, if the compression of the pin of the second intelligent dial indicator 17 located on the right is the largest, that is, the right side of the axis floats up more, then the current axial offset direction is considered to be tilting to the upper right.

[0069] In another exemplary embodiment of this application, the concrete data includes at least one of the concrete height rise rate at each measuring point and the concrete height difference between any two measuring points at the same time.

[0070] Accordingly, the data processing device 2 is further configured to: calculate the concrete height difference of each measuring point in the first target time period based on the concrete height of each measuring point at different times within the first target time period, and calculate the concrete height rise rate of each measuring point in the first target time period based on the concrete height difference of each measuring point in the first target time period; and / or: Based on the concrete height of all measuring points collected at the same time, calculate the concrete height difference between any two measuring points. This concrete height difference refers to the concrete height difference at the same time.

[0071] In this embodiment, the first target time period is not specifically limited and can be set according to actual needs. For example, the time interval from the last adjustment of the concrete pouring speed and / or pouring direction to the current time point can be set as the first target time period to more accurately calculate the concrete height rise rate.

[0072] In another exemplary embodiment of this application, the above-mentioned concrete pouring adjustment suggestions include concrete pouring speed adjustment suggestions and / or concrete pouring orientation adjustment suggestions.

[0073] Specifically, abnormalities in attitude and concrete data are mainly caused by excessively fast concrete pouring or uneven pouring on both sides. Based on the specific circumstances, suggestions for adjusting the concrete pouring speed and / or the concrete pouring orientation can be provided.

[0074] Therefore, the data processing device 2 described above is also used for: If the current radial offset is greater than the preset first threshold, the current radial offset is considered abnormal. If the compression of the pins of the second intelligent dial gauge 17 at each measuring point is different and / or the current axial offset is greater than the preset second threshold, the current axial offset is considered abnormal. If the concrete height rise rate at any measuring point is greater than the preset third threshold, the concrete height rise rate at that measuring point is considered abnormal. If the concrete height difference between any two measuring points at any time is greater than the preset fourth threshold, the concrete height difference between these two measuring points is considered abnormal. The first, second, third, and fourth thresholds are determined according to the equipment installation requirements, values ​​given in advance by the manufacturer, or based on installation experience.

[0075] In this embodiment, the volute housing ring will not float excessively due to the fixing bolts. A certain amount of floating does not affect the installation accuracy, but it must be controlled to float evenly. Uneven floating around the perimeter of the volute housing ring will cause it to tilt, which will significantly affect the installation accuracy. Therefore, if the compression amount of the pin of the second intelligent dial indicator 17 at each measuring point is different and / or the current total axial offset is not less than the preset second threshold, the current total axial offset is considered abnormal.

[0076] Accordingly, the data processing device 2 described above is also used for: If the current radial offset total, current axial offset total, concrete height rise rate at any measuring point is abnormal, and / or the concrete height difference between any two measuring points is abnormal, an alarm will be triggered. Based on the reasons for the abnormality of the current radial offset total, current axial offset total, concrete height rise rate at any measuring point, and / or the concrete height difference between any two measuring points, suggestions for adjusting the concrete pouring speed and / or the concrete pouring orientation will be provided.

[0077] For example, if the current axial offset of the volute housing ring is abnormal, and the current axial offset direction is tilted to the upper left (i.e., more upward movement to the left and less upward movement to the right), the abnormality may be caused by excessively rapid concrete pouring on the left side of the volute housing ring or by pouring only on the left side. In this case, only a concrete pouring direction adjustment suggestion can be given, such as suggesting pouring concrete from the left side of the volute housing ring, temporarily postponing pouring from the right side, or simultaneously pouring concrete from both the left and right sides of the volute housing ring. Only a concrete pouring speed adjustment suggestion can be given, such as reducing the concrete pouring speed at the original pouring position. Alternatively, both concrete pouring speed and concrete pouring direction adjustment suggestions can be given simultaneously.

[0078] In another exemplary embodiment of this application, the data processing device 2 is further configured to: If the current total radial displacement, current total axial offset, concrete height rise rate at any measuring point, and concrete height difference between any two measuring points are all normal: Based on the historical radial displacement and the current radial displacement in the current radial offset direction, the radial displacement of the target volute ring in the current radial offset direction during the next second target time period is predicted to obtain the predicted radial displacement. The historical radial displacement, current radial offset and predicted radial displacement of the target volute ring in the current radial offset direction are summed to obtain the total predicted radial displacement of the target volute ring in the current radial offset direction. Based on the historical axial displacement and the current axial displacement in the current axial offset direction, the axial displacement of the target volute seat ring in the current axial offset direction during the next second target time period is predicted to obtain the predicted axial displacement. The historical axial displacement, current axial displacement and predicted axial displacement of the target volute seat ring in the current axial offset direction are summed to obtain the total predicted axial displacement of the target volute seat ring in the current axial offset direction. Based on the historical data of the concrete height rise rate at each measuring point, the concrete height rise rate at each measuring point in the next second target time period is predicted, and the predicted height rise rate at each measuring point is obtained. Based on historical data of concrete elevation difference between any two measuring points, predict the concrete elevation difference between any two measuring points in the next second target time period, and obtain the predicted elevation difference between any two measuring points. The system detects whether at least one of the third data points of the target volute bearing ring is abnormal. This third data includes the predicted total radial displacement, the predicted total axial offset, the predicted height rise rate at each measuring point, and the predicted height difference between any two measuring points. If an abnormality is detected, an alert is issued for the abnormal data in the third data. The cause of the abnormality is analyzed, and based on the cause, suggestions for adjusting concrete pouring are provided to guide technicians in making decisions to adjust or stop concrete pouring, thereby bringing the abnormal data in the third data back to the normal range. For example, if the total radial offset to the right of the volute bearing ring exceeds the standard, it is recommended to suspend concrete pouring on the left side of the volute bearing ring and proceed with concrete pouring on the right side, pushing the volute bearing ring to the left.

[0079] In this embodiment, if the predicted total radial offset is greater than a preset fifth threshold, the predicted total radial offset is considered abnormal; if the predicted total axial offset is greater than a preset sixth threshold, the predicted total axial offset is considered abnormal; if the predicted height rise rate of any measuring point is greater than a preset seventh threshold, the predicted height rise rate of that measuring point is considered abnormal; if the predicted height difference between any two measuring points is greater than a preset eighth threshold, the predicted height difference between these two measuring points is considered abnormal. The fifth, sixth, seventh, and eighth thresholds are specifically determined according to the equipment installation requirements, predetermined by the manufacturer, or determined based on installation experience.

[0080] Four prediction models can be trained in advance using historical data to predict the radial displacement of the target volute ring in the current radial offset direction during the next second target time period, the axial displacement of the target volute ring in the current axial offset direction during the next second target time period, the concrete height rise rate at each measuring point during the next second target time period, and the concrete height difference between any two measuring points during the next second target time period. The structure of the prediction models is not specifically limited and can be customized according to actual needs. For example, to ensure prediction accuracy, the four prediction models can use a Long Short-Term Memory (LSTM) network.

[0081] The second target time period shall not exceed the data acquisition interval of the displacement monitoring device. There is no specific limitation on the second target time period, which can be set according to actual needs.

[0082] For example, if the second target time period is set to 10 minutes, and the radial offset of the target volute ring in the current radial offset direction is 0.05 mm in the first 10 minutes, 0.1 mm in the second 10 minutes, and 0.15 mm in the third 10 minutes, and the predicted possible radial offset in the current radial offset direction in the fourth 10 minutes is 0.2 mm, then the predicted total radial offset is 0.5 mm. If the predicted total radial offset is abnormal, an early warning should be issued to attract the attention of construction personnel.

[0083] In another exemplary embodiment of this application, the data processing device 2 is further configured to: Based on the attitude data of the target volute seat ring, the attitude of the three-dimensional model of the target volute seat ring is adjusted, and the attitude data is marked in the three-dimensional model of the target volute seat ring to achieve intuitive feedback on the installation accuracy.

[0084] In this embodiment, a component for data-driven changes in a three-dimensional model was developed. After analyzing the attitude data of the target volute ring, the radial offset and / or axial upward movement are visually represented by data-driven changes in the three-dimensional model. The magnitude of the changes is increased for visual observation.

[0085] In another exemplary embodiment of this application, the data processing device 2 is further configured to: The system periodically sends the first data to the mobile terminal of the technical management personnel so that they can view the monitoring data via their mobile terminals.

[0086] In another exemplary embodiment of this application, the data processing device 2 is further configured to: The system generates alarms for abnormal data, provides suggestions for adjusting concrete pouring, and records alarms and suggestions.

[0087] In another exemplary embodiment of this application, the data processing device 2 is further configured to: After an alarm is triggered, the color of the alarm area in the BIM model of the target volute ring is changed to a color that represents an anomaly (such as red) to visually display the alarm area and enable rapid location of the alarm point.

[0088] In this embodiment, the alarm area is the area where the measurement point corresponding to the abnormal data is located. The method of dividing the area where any measurement point is located is not specifically limited and can be defined according to the actual situation. For example, if the measurement points are evenly distributed on the target volute ring, the target volute ring is divided equally based on the position of each measurement point to obtain the area where the corresponding measurement point is located.

[0089] In another exemplary embodiment of this application, the data processing device 2 is further configured to: The curves of the monitoring data of each first intelligent dial gauge 16 changing over time, the curves of the monitoring data of each second intelligent dial gauge 17 changing over time, and the curves of the monitoring data of the water pressure monitoring device changing over time are plotted and visualized to reflect the trend of numerical changes.

[0090] For example, such as Figure 2 As shown, four evenly distributed measuring points were selected on the target volute ring. Curves showing the changes in monitoring data over time for each of the first intelligent dial gauges 16 (radial -X, radial +X, radial -Y, radial +Y) and each of the second intelligent dial gauges 17 (axial -X, axial +X, axial -Y, axial +Y), as well as the curves showing the changes in monitoring data over time for the water pressure monitoring device, were plotted and visualized. At this point, the radial warning value could be set to ±0.5 and the alarm value to ±0.6, while the axial warning value could be set to ±0.3 and the alarm value to ±0.4. Based on... Figure 3-6 It can be seen that the axial upward movement of the volute housing ring is within the control range, and all radial measuring points have negative values, indicating that the volute housing ring is compressed (normal). The radial (-x) direction of the volute housing ring has a negative value and exceeds the preset value (alarm value), indicating that the volute housing ring has shifted too far to the right. It is necessary to control the concrete pouring speed on the left side or stop the concrete pouring on the left side, or to pour concrete on the right side to allow the volute housing ring to shift to the left and adjust its position.

[0091] In another exemplary embodiment of this application, the data processing device 2 is further configured to: The alarm page visualizes abnormal data, alarm information, and handling suggestions, including water pressure adjustment suggestions and / or concrete pouring adjustment suggestions.

[0092] In this embodiment of the application, the format of the alarm page is not specifically limited and can be set according to actual needs.

[0093] In another exemplary embodiment of this application, the data acquisition device 1 further includes a concentrator 14 and a data acquisition device 15. The first end (input end) of the concentrator 14 is connected to the measurement data output end of each first smart dial gauge 16 and each second smart dial gauge 17 via a shielded cable. The first end of the data acquisition device 15 is connected to the second end (output end) of the concentrator 14, the second end (output end) of the concrete height monitoring device 12, and the second end (output end) of the water pressure monitoring device 13 via a shielded cable. The second end (output end) of the data acquisition device 15 is connected to the measurement data input end of the data processing device 2.

[0094] The concentrator 14 is used at least to aggregate, convert, and adapt the measurement data from all the first smart dial gauges 16 and the second smart dial gauges 17. Three data acquisition units 15 can be configured to preprocess the data uploaded from the concentrator 14, the concrete height monitoring device 12, and the water pressure monitoring device 13, removing abnormal data before uploading the data to the data processing device 2. Since the amount of front-end data acquisition is large, using the data acquisition units 15 can effectively improve data processing efficiency.

[0095] The underlying sensors typically use simple, proprietary, or industry-specific short-range communication protocols (such as Modbus, DL / T 645, CJ / T 188, LoRaWAN MAC layer), while the upper-layer system requires standard IP protocols (TCP / IP, MQTT). In this case, the concentrator acts as a "translator": downlink: understanding the sensor's proprietary commands and polling or receiving sensor data; uplink: encapsulating the parsed data into standard IP packets and sending them to the data acquisition unit 15.

[0096] The concentrator 14 connects to several smart dial meters simultaneously, collects their measured data, packages it, and sends it to the data collector 15 through a single uplink channel, which greatly reduces network congestion and reduces the connection pressure on the upper-layer network.

[0097] In another exemplary embodiment of this application, the data processing device 2 includes an Internet of Things (IoT) platform 21 and a digital power station backend 22. The IoT platform 21 is connected to the data collector 15 via a wireless communication module (such as a 4G or 5G wireless communication module), and the output of the IoT platform 21 is connected to the input of the digital power station backend 22. The digital power station backend 22 is used to implement the functions of the data processing device 2 described above. Since the digital power station backend 22 cannot be directly connected to the data collector 15, the IoT platform 21 is used to connect to the data collector 15. The main function of the IoT platform 21 is to collect the data transmitted by the data collector 15 in real time. The IoT platform 21 and the data collector 15 can be connected via a network cable, optical fiber, or 4G wireless signal.

[0098] This application presents a monitoring system for the installation of spiral casing rings in hydropower stations. This system enables real-time online monitoring, analysis, alarm functions, and the delivery of processing suggestions to the spiral casing rings during the pouring of the outer concrete casing. It possesses basic functions such as data acquisition, data storage and management, alarm functions, auxiliary analysis, SMS notifications, report generation, auxiliary suggestions, and self-recovery. Once operational, this system will provide real-time monitoring of the spiral casing ring's condition, reducing manpower requirements, mitigating project safety risks, providing guidance for on-site construction, and ultimately improving installation accuracy.

[0099] Simultaneously, it can manage, analyze, and store monitoring data, reflect the changing trends of equipment status, and display and describe them in the form of data, graphics, tables, curves, and text. It can promptly issue early warnings and alarms for abnormal equipment status, send SMS reminders, and guide adjustments to on-site concrete pouring measures.

[0100] The hydropower station spiral casing mounting ring installation monitoring system of this application embodiment has the following advantages: (1) The system realizes continuous remote data acquisition and replaces personnel to complete on-site measurement work, reducing the risk of personnel measurement operations.

[0101] (2) The system realizes the automatic generation of quality evaluation reports after the construction work is completed, reducing the workload of manual compilation. The reports adopt compatible file formats such as Word and Excel.

[0102] After the construction work is completed, a Word template is created according to a preset format. The digital power station backend 22 reads and analyzes relevant data, automatically fills the key values ​​into the blank areas of the template, and thus automatically generates a quality evaluation report. The quality evaluation report mainly includes the deviation during the pouring process, the concrete pouring speed, and the quality evaluation of the volute housing ring installation.

[0103] (3) The system report should reflect the numerical value and trend of the operating status of the monitored object, make a preliminary evaluation of the operating status, and include relevant graphs and charts.

[0104] (4) The embodiments of this application take the monitoring of the volute seat ring as the main objective. When selecting equipment, the equipment is focused on the target function and no additional functions are required, so as to minimize the equipment cost. The selected equipment is designed to be reusable and improve its practical value. At the same time, the feasibility of application in similar projects is considered, and the hardware selection and system design are carried out according to the general requirements.

[0105] (5) The online monitoring background analysis software is installed in the digital power station background 22. It not only has the functions of monitoring data display, early warning and alarm, but also has advanced functions such as reading and storage, data analysis, document management, early warning alarm and SMS push.

[0106] (6) The system is equipped with APP software installed on mobile terminals (such as smartphones and tablets), which can realize timely feedback of monitoring status, early warning alarms and suggestions, providing a basis for timely adjustment of on-site construction operations.

[0107] Based on the same inventive concept, this application also provides a method for monitoring the installation of a hydropower station spiral casing ring, applicable to the aforementioned monitoring system. The solution provided by this method is similar to the implementation described in the above system. Therefore, the specific limitations in one or more embodiments of the hydropower station spiral casing ring installation monitoring method provided below can be found in the above-described limitations of the hydropower station spiral casing ring installation monitoring system, and will not be repeated here.

[0108] In one exemplary embodiment, such as Figure 7 As shown, a method for monitoring the installation of a spiral casing mounting ring in a hydropower station is provided. This method is executed by computer equipment and applied to the data processing device of the aforementioned hydropower station spiral casing mounting ring installation monitoring system. The method includes steps 101 to 104. Wherein: Step 101: Receive the status data of the target volute ring collected in real time by the data acquisition device. The status data includes at least the displacement of each measuring point on the target volute ring and the concrete pouring height of each measuring point.

[0109] Step 102: Analyze the received state data of the target volute ring to obtain the first data; wherein, the first data includes attitude data and concrete data.

[0110] Step 103: Detect whether at least one piece of data in the first set of data is abnormal.

[0111] Step 104: If an anomaly is detected, an alarm will be triggered for the abnormal data in the first data set, and suggestions for adjusting the concrete pouring will be provided.

[0112] By implementing steps 101 to 104 above, the target volute seat ring's status data (including at least the displacement of each measuring point on the target volute seat ring and the concrete pouring height outside the area where each measuring point is located) is collected in real time by the data acquisition device. This achieves automatic data acquisition, eliminating the need for manual on-site measurement and feedback to technicians. It avoids the significant safety risks faced by measurement personnel during manual on-site measurements, the need for continuous manual measurement consuming considerable manpower, the large errors and inconsistent data recording intervals resulting in low accuracy in monitoring the volute seat ring's offset and upward movement due to manual reading of data via mechanical instruments, and the risk of delayed data collection and feedback due to human negligence, leading to excessive volute seat ring offset and upward movement far exceeding standard specifications, requiring rework and causing significant economic losses. By monitoring the received target volute seat ring's status... The data is analyzed to obtain the first data (including attitude data and concrete data), enabling automatic analysis of the target volute seat ring's state data. This eliminates the need for manual analysis of measurement data, avoiding the problem of low monitoring accuracy of volute seat ring offset and floating caused by reliance on the individual technical skills of technicians in measurement data analysis. By detecting at least one abnormal data point in the first data, an alarm is triggered for the abnormal data in the first data, and concrete pouring adjustment suggestions are provided. This achieves automatic detection of abnormal data of the target volute seat ring and automatic generation of concrete pouring adjustment suggestions, eliminating the need for manual judgment of the overall attitude (offset) of the volute seat ring and provision of concrete pouring construction adjustment measures. This avoids the problem of low monitoring accuracy of volute seat ring offset and floating caused by reliance on the individual technical skills of technicians in judging the overall attitude (offset) of the volute seat ring and providing concrete pouring construction adjustment measures.

[0113] In summary, the embodiments of this application can better monitor the offset and floating state of the volute housing ring, thereby improving the installation accuracy of the volute housing ring.

[0114] In another exemplary embodiment of this application, to avoid deformation of the volute due to external concrete compression, which would affect the structural safety and installation accuracy of the volute, the volute seat ring needs to be filled with water and maintained at a certain water pressure (e.g., around 3-5 MPa) during installation to simulate the normal operating conditions of the volute. To avoid unsuitable (too high or too low) water pressure inside the volute seat ring affecting its installation accuracy, the aforementioned status data also includes the water pressure inside the target volute seat ring. Accordingly, the above-mentioned hydropower station volute seat ring installation monitoring method, after step 101, further includes: Step 201: Detect whether the water pressure inside the target volute seat ring is abnormal. If it is abnormal, issue an alarm for the abnormal water pressure and provide water pressure adjustment suggestions.

[0115] In another exemplary embodiment of this application, the displacement of any of the above measuring points includes radial displacement and axial displacement, and the above attitude data includes the current total radial displacement and the current total axial displacement.

[0116] Accordingly, step 102 specifically includes steps 301 to 302, wherein: Step 301: Analyze the radial displacement data measured by all the first intelligent dial gauges collected at the same time to obtain the current radial offset of the target volute ring in the current radial offset direction; and analyze the measurement data of all the second intelligent dial gauges collected at the same time to obtain the current axial offset of the target volute ring in the current axial offset direction.

[0117] Step 302: Summate the historical radial displacement and current radial offset of the target volute seat ring in the current radial offset direction to obtain the total current radial displacement of the target volute seat ring in the current radial offset direction; and sum the historical axial displacement and current axial offset of the target volute seat ring in the current axial offset direction to obtain the total current axial displacement of the target volute seat ring in the current axial offset direction.

[0118] In another exemplary embodiment of this application, the concrete data mentioned above includes at least one of the concrete height rise rate and concrete height difference.

[0119] Accordingly, step 102 specifically includes steps 303 and / or 304. Wherein: Step 303: Based on the concrete height of each measuring point at different times within the first target time period, calculate the concrete height difference of each measuring point within the first target time period, and based on the concrete height difference of each measuring point within the first target time period, calculate the concrete height rise rate of each measuring point within the first target time period.

[0120] Step 304: Based on the concrete height of all measuring points collected at the same time, calculate the difference in concrete height between any two measuring points collected at the same time.

[0121] In this embodiment of the application, the execution order of steps 301 to 304 can be adjusted according to actual needs, and no specific limitation is made here.

[0122] In another exemplary embodiment of this application, step 104 specifically includes: Step 401: If the current radial offset total, the current axial offset total, the concrete height rise rate at any measuring point is abnormal and / or the concrete height difference between any two measuring points is abnormal, an alarm is triggered, and based on the reasons for the abnormality of the current radial offset total, the current axial offset total, the concrete height rise rate at any measuring point and / or the concrete height difference between any two measuring points, suggestions for adjusting the concrete pouring speed and / or the concrete pouring orientation are given.

[0123] In this embodiment, if the current radial offset is greater than a preset first threshold, the current radial offset is considered abnormal; if the compression of the pins of the second intelligent dial gauge at each measuring point is different and / or the current axial offset is greater than a preset second threshold, the current axial offset is considered abnormal; if the concrete height rise rate at any measuring point is greater than a preset third threshold, the concrete height rise rate at that measuring point is considered abnormal; if the concrete height difference between any two measuring points at any time is greater than a preset fourth threshold, the concrete height difference between these two measuring points is considered abnormal. The first, second, third, and fourth thresholds are specifically determined according to the equipment installation requirements, predetermined by the manufacturer, or determined based on installation experience. For details regarding the reasons for the current radial offset, current axial offset, abnormal concrete height rise rate at any measuring point, and / or abnormal concrete height difference between any two measuring points, suggestions for adjusting the concrete pouring speed and / or the concrete pouring orientation are provided in the above embodiments and will not be repeated here.

[0124] In another exemplary embodiment of this application, the above-mentioned hydropower station spiral casing seat ring installation monitoring method, after step 103, if the current total radial displacement, current total axial offset, concrete height rise rate at any measuring point, and concrete height difference between any two measuring points are all normal, further includes steps 501 to 506. Wherein: Step 501: Based on the historical radial displacement and the current radial displacement in the current radial offset direction, predict the radial displacement of the target volute ring in the current radial offset direction during the next second target time period, and obtain the predicted radial displacement; and based on the historical axial displacement and the current axial displacement in the current axial offset direction, predict the axial displacement of the target volute ring in the current axial offset direction during the next second target time period, and obtain the predicted axial displacement.

[0125] Step 502: Summate the historical radial displacement, current radial displacement, and predicted radial displacement of the target volute seat ring in the current radial offset direction to obtain the total predicted radial displacement of the target volute seat ring in the current radial offset direction; and sum the historical axial displacement, current axial displacement, and predicted axial displacement of the target volute seat ring in the current axial offset direction to obtain the total predicted axial displacement of the target volute seat ring in the current axial offset direction.

[0126] Step 503: Based on the historical data of the concrete height rise rate at each measuring point, predict the concrete height rise rate at each measuring point in the next second target time period, and obtain the predicted height rise rate at each measuring point.

[0127] Step 504: Based on the historical data of the concrete elevation difference between any two measuring points, predict the concrete elevation difference between any two measuring points in the next second target time period, and obtain the predicted elevation difference between any two measuring points.

[0128] Step 505: Detect whether at least one of the third data of the target volute seat ring is abnormal. The third data includes the predicted total radial displacement, the predicted total axial offset, the predicted height rise rate of each measuring point, and the predicted height difference between any two measuring points.

[0129] Step 506: If an anomaly is detected, issue an early warning for the abnormal data in the third data, analyze the cause of the anomaly in the third data, and provide suggestions for adjusting the concrete pouring based on the cause of the anomaly in the third data to guide the technicians to make decisions on adjusting or stopping the concrete pouring, thereby adjusting the abnormal data in the third data to the normal range.

[0130] In this embodiment, if the predicted total radial offset is greater than a preset fifth threshold, the predicted total radial offset is considered abnormal; if the predicted total axial offset is greater than a preset sixth threshold, the predicted total axial offset is considered abnormal; if the predicted height rise rate of any measuring point is greater than a preset seventh threshold, the predicted height rise rate of that measuring point is considered abnormal; if the predicted height difference between any two measuring points is greater than a preset eighth threshold, the predicted height difference between these two measuring points is considered abnormal. The fifth, sixth, seventh, and eighth thresholds are specifically determined according to the equipment installation requirements, predetermined by the manufacturer, or determined based on installation experience.

[0131] Four prediction models can be trained in advance using historical data to predict the radial displacement of the target volute ring in the current radial offset direction during the next second target time period, the axial displacement of the target volute ring in the current axial offset direction during the next second target time period, the concrete height rise rate at each measuring point during the next second target time period, and the concrete height difference between any two measuring points during the next second target time period. The structure of the prediction models is not specifically limited and can be customized according to actual needs. For example, to ensure prediction accuracy, the four prediction models can use a Long Short-Term Memory (LSTM) network.

[0132] In another exemplary embodiment of this application, the above-described hydropower station spiral casing mounting ring installation monitoring method further includes, after step 102: Step 601: Based on the attitude data of the target volute seat ring, adjust the attitude of the three-dimensional model of the target volute seat ring, and annotate the attitude data in the three-dimensional model of the target volute seat ring to achieve intuitive feedback on the installation accuracy.

[0133] In another exemplary embodiment of this application, the above-described hydropower station spiral casing mounting ring installation monitoring method further includes, after step 102: Step 701: The first data is sent to the mobile terminal of the technical management personnel at regular intervals so that the technical management personnel can view the monitoring data through the mobile terminal.

[0134] In another exemplary embodiment of this application, in steps 104 and 504 above, while issuing an alarm for abnormal data and providing suggestions for adjusting concrete pouring, the method also includes: Records of alarms and suggestions are generated.

[0135] In another exemplary embodiment of this application, steps 104 and 504 described above further include: Step 801: After triggering an alarm for abnormal data, change the color of the alarm area in the BIM model of the target volute ring to a color that represents the abnormality (such as red) to visually display the alarm area and achieve rapid location of the alarm.

[0136] In another exemplary embodiment of this application, the above-described hydropower station spiral casing mounting ring installation monitoring method further includes, after step 103: Step 901: Plot and visualize the curves of the monitoring data of each first intelligent dial gauge changing over time, the curves of the monitoring data of each second intelligent dial gauge changing over time, and the curves of the monitoring data of the water pressure monitoring device changing over time, thereby reflecting the trend of numerical changes.

[0137] In another exemplary embodiment of this application, the above-described hydropower station spiral casing mounting ring installation monitoring method further includes, after step 104: The alarm page visualizes abnormal data, alarm information, and handling suggestions, including water pressure adjustment suggestions and / or concrete pouring adjustment suggestions.

[0138] In one exemplary embodiment, a computer device is provided, which may be a server or a terminal, and its internal structure diagram may be as follows. Figure 8 As shown, the computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The database stores monitoring data related to the installation of the spiral casing ring in a hydropower station. The I / O interfaces are used for exchanging information between the processor and external devices. The communication interface is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements a method for monitoring the installation of the spiral casing ring in a hydropower station.

[0139] Those skilled in the art will understand that Figure 8 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0140] In one exemplary embodiment, a computer device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above-described method embodiments.

[0141] In one exemplary embodiment, a computer-readable storage medium is provided storing a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.

[0142] In one exemplary embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.

[0143] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments described above. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM).

[0144] The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0145] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0146] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A monitoring system for the installation of a spiral casing mounting ring in a hydropower station, characterized in that, The hydropower station spiral casing mounting ring installation monitoring system includes a data acquisition device and a data processing device electrically connected to the data acquisition device, wherein: The data acquisition device is used to collect the status data of the target volute ring in real time and send the real-time collected status data to the data processing device. The status data includes at least the displacement of each measuring point on the target volute ring and the concrete pouring height of each measuring point. The data processing device is used for: The received state data of the target volute ring is analyzed to obtain first data; wherein, the first data includes attitude data and concrete data; The system detects whether at least one data point in the first data is abnormal. If an abnormality is detected, an alarm is triggered for the abnormal data in the first data, and suggestions for adjusting the concrete pouring are provided.

2. The hydropower station spiral casing mounting ring installation monitoring system according to claim 1, characterized in that, The data acquisition device specifically includes a displacement monitoring device and a concrete height monitoring device. The measurement data output terminals of the displacement monitoring device and the concrete height monitoring device are electrically connected to the measurement data input terminal of the data processing device, wherein: The displacement monitoring device is used to measure the displacement of any measuring point on the target volute ring and send the measured displacement data to the data processing device; The concrete height monitoring device is used to measure the height of the concrete poured outside each measuring point on the target volute seat ring and send the measured height data to the data processing device.

3. The hydropower station spiral casing mounting ring installation monitoring system according to claim 2, characterized in that, The data acquisition device is also used to collect the water pressure inside the target volute seat ring in real time; The data processing device is further configured to: Detect whether the water pressure inside the target volute seat ring is abnormal. If it is abnormal, an alarm is triggered for the abnormal water pressure and a water pressure adjustment suggestion is given. The data acquisition device also includes a water pressure monitoring device, and the measurement data output terminal of the water pressure monitoring device is electrically connected to the measurement data input terminal of the data processing device; The water pressure monitoring device is used to measure the water pressure inside the volute of the target volute ring and send the measured water pressure data to the data processing device.

4. The hydropower station spiral casing mounting ring installation monitoring system according to claim 2, characterized in that, The displacement of any of the measuring points includes radial displacement and axial displacement; The displacement monitoring device specifically includes a first intelligent dial indicator and a second intelligent dial indicator, wherein: The first intelligent dial indicator is installed on the embedded part of the foundation concrete of the target volute seat ring and is located inside the target volute seat ring. The pointer of the first intelligent dial indicator is horizontally pressed against the inner ring wall surface of any measuring point of the target volute seat ring, and is used to measure the radial displacement of the measuring point. The second intelligent dial indicator is installed on the embedded part of the foundation concrete of the target volute seat ring and is located above the target volute seat ring. The pointer of the second intelligent dial indicator is perpendicular to the top of the area where the measuring point is located, and is used to measure the axial displacement of the measuring point.

5. The hydropower station spiral casing mounting ring installation monitoring system according to claim 4, characterized in that, The attitude data includes the current total radial displacement and the current total axial displacement, and the concrete data includes at least one of the concrete height rise rate and the concrete height difference. The data processing device is further configured to: Analyze all radial displacement data measured by the first intelligent dial gauge collected at the same time to obtain the current radial offset of the target volute ring in the current radial offset direction; The historical radial displacement and current radial displacement of the target volute ring in the current radial offset direction are summed to obtain the total current radial displacement of the target volute ring in the current radial offset direction; By analyzing the measurement data of all the second intelligent dial gauges collected at the same time, the current axial offset of the target volute ring in the current axial offset direction is obtained; The historical axial displacement and the current axial displacement of the target volute seat ring in the current axial offset direction are summed to obtain the total current axial displacement of the target volute seat ring in the current axial offset direction; Based on the concrete height of each measuring point at different times within the first target time period, calculate the concrete height difference of each measuring point within the first target time period, and based on the concrete height difference of each measuring point within the first target time period, calculate the concrete height rise rate of each measuring point within the first target time period. Based on the concrete height of all measuring points collected at the same time, calculate the concrete height difference between any two measuring points.

6. The hydropower station spiral casing mounting ring installation monitoring system according to claim 4, characterized in that, The data processing device is further configured to: If the current total radial displacement, current total axial offset, concrete height rise rate at any measuring point, and concrete height difference between any two measuring points are all normal: Based on the historical radial displacement and the current radial displacement in the current radial offset direction, the radial displacement of the target volute ring in the current radial offset direction in the next second target time period is predicted to obtain the predicted radial displacement. The historical radial displacement, current radial displacement, and predicted radial displacement of the target volute ring in the current radial offset direction are summed to obtain the total predicted radial displacement of the target volute ring in the current radial offset direction. Based on the historical axial displacement and the current axial displacement in the current axial offset direction, the axial displacement of the target volute ring in the current axial offset direction in the next second target time period is predicted to obtain the predicted axial displacement. The historical axial displacement, current axial displacement, and predicted axial displacement of the target volute seat ring in the current axial offset direction are summed to obtain the total predicted axial displacement of the target volute seat ring in the current axial offset direction. Based on the historical data of the concrete height rise rate at each measuring point, the concrete height rise rate at each measuring point in the next second target time period is predicted, and the predicted height rise rate at each measuring point is obtained. Based on historical data of concrete elevation difference between any two measuring points, predict the concrete elevation difference between any two measuring points in the next second target time period, and obtain the predicted elevation difference between any two measuring points. The system detects whether at least one of the third data of the target volute seat ring is abnormal. If abnormal, it issues an early warning for the abnormal data in the third data and provides suggestions for adjusting the concrete pouring. The third data includes the predicted total radial displacement, the predicted total axial offset, the predicted height rise rate of each measuring point, and the predicted height difference between any two measuring points.

7. The hydropower station spiral casing mounting ring installation monitoring system according to claim 5, characterized in that, The concrete pouring adjustment suggestions include suggestions for adjusting the concrete pouring speed and / or suggestions for adjusting the concrete pouring position; The data processing device is further configured to: If the current total radial offset is greater than the preset first threshold, the current total radial offset is considered abnormal. If the current total axial offset is greater than the preset second threshold, the current total axial offset is considered abnormal. If the concrete height rise rate at any measuring point is greater than the preset third threshold, then the concrete height rise rate at that measuring point is considered abnormal. If the concrete height difference between any two measuring points is greater than the preset fourth threshold, then the concrete height difference between the two measuring points is considered abnormal. If the predicted total radial offset is greater than the preset fifth threshold, the predicted total radial offset is considered abnormal. If the predicted total axial offset is greater than the preset sixth threshold, the predicted total axial offset is considered abnormal. If the predicted height rise rate of any measuring point is greater than the preset seventh threshold, then the predicted height rise rate of the measuring point is considered abnormal. If the predicted height difference between any two measuring points is greater than the preset eighth threshold, then the predicted height difference between the two measuring points is considered abnormal. Analyze the causes of the abnormal data, and based on these causes, provide suggestions for adjusting the concrete pouring speed and / or the concrete pouring orientation.

8. A method for monitoring the installation of a spiral casing mounting ring in a hydropower station, characterized in that, The data processing device applied to the hydropower station spiral casing mounting ring installation monitoring system according to any one of claims 1 to 7, wherein the hydropower station spiral casing mounting ring installation monitoring method comprises: Receive real-time acquired status data of the target volute ring, the status data including at least the displacement of each measuring point on the target volute ring and the concrete pouring height of each measuring point; The received state data of the target volute ring is analyzed to obtain first data; wherein, the first data includes attitude data and concrete data; Detect whether at least one data point in the first data is abnormal; If an anomaly is detected, an alarm will be triggered for the abnormal data in the first set of data, and suggestions for adjusting the concrete pouring will be provided.

9. A computer device, comprising: The memory, the processor, and the computer program stored in the memory and executable on the processor are characterized in that the processor executes the computer program to implement the steps of the hydropower station spiral casing mounting ring installation monitoring method according to claim 8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the hydropower station spiral casing mounting ring installation monitoring method as described in claim 8.

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