Building settlement monitoring device and method based on Beidou positioning

Abstract

The invention discloses a building settlement monitoring device and method based on Beidou positioning, and belongs to the technical field of building settlement monitoring. The side wall of the liquid storage tank is connected with a liquid return assembly; a filtering liquid outlet assembly is mounted at the bottom of the liquid storage tank; a plurality of groups of detection assemblies are arranged between the filtering liquid outlet assembly and the liquid return assembly; a calibration auxiliary assembly is installed in the detection assembly. A third pipeline is fixedly connected between the detection assemblies, the detection assembly close to the liquid storage tank is connected with the liquid return assembly, and the detection assembly far away from the liquid storage tank is connected with the filtering liquid outlet assembly; and a second pipeline is fixedly connected between the detection assemblies. In this way, impurities are prevented from entering the detection assembly and affecting the accuracy of the detection assembly, and accurate monitoring of the detection assembly is facilitated; and the calibration auxiliary assembly and the temperature sensor are matched to calibrate the detection assembly, so that the accuracy of the detection assembly can be ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of building settlement monitoring, and particularly relates to a building settlement monitoring device and method based on Beidou positioning. Background Art

[0002] With the rapid development of social economy and the acceleration of urbanization, the number and floors of buildings are constantly increasing, and building settlement is inevitable. In order to monitor settlement, settlement monitoring devices are needed.

[0003] Chinese Patent CN216448902U, an ultrasonic static level, includes a liquid storage tank vertically arranged with both ends open. The liquid storage tank is made of transparent material. A sealing cover is arranged at the top of the liquid storage tank. A level gauge and a liquid injection hole are arranged on the upper surface of the sealing cover. A sealing seat is arranged at the bottom of the liquid storage tank. An integrated circuit control board and an ultrasonic generating device are arranged inside the sealing seat. A temperature sensor extending into the liquid storage tank is connected to the integrated circuit control board. An electrical interface and a liquid passing interface are respectively arranged outside the sealing seat. By adopting the above technical solution, the beneficial effect of the present utility model is that the present utility model emits ultrasonic waves into the liquid inside the liquid storage tank through the ultrasonic generating device, and uses the time difference of ultrasonic echoes to determine the liquid level height. The present utility model not only has a small volume and low cost, but also has a simple structure and is convenient to operate. At the same time, the measurement accuracy is higher than that of the traditional one.

[0004] However, the above-mentioned method of automatically collecting data of the static level is to convert the displacement data of the liquid level into other physical quantities for calculation and analysis. The propagation speed of ultrasonic waves in coolant at different temperatures is different, and the above structure does not design a calibration result, so that the monitoring data cannot be adjusted correspondingly according to the temperature, and the accuracy needs to be improved. Moreover, when ultrasonic waves are transmitted to the residual impurities in the coolant, they will be directly reflected, and the monitored data is not the liquid level of the coolant, and the monitoring data is inaccurate.

[0005] Based on this, the present invention designs a building settlement monitoring device and method based on Beidou positioning to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned drawbacks of the prior art, the present invention provides a building settlement monitoring device and method based on Beidou positioning.

[0007] To achieve the above object, the present invention is realized through the following technical solutions:

[0008] A building settlement monitoring device based on Beidou positioning, including a liquid storage tank;

[0009] At the upper end through hole of the side wall of the liquid storage tank, a fourth pipeline for balancing the air pressure in the liquid storage tank and a liquid return assembly for coolant recovery are fixedly connected;

[0010] At the bottom of the liquid storage tank, a filtered liquid outlet assembly for filtering the coolant is installed, and multiple groups of detection assemblies are arranged between the filtered liquid outlet assembly and the liquid return assembly;

[0011] Inside the detection assembly, a calibration auxiliary assembly for auxiliary calibration of the detection assembly is installed;

[0012] Between the detection assemblies, a third pipeline for guiding liquid for the detection assemblies is fixedly connected. The detection assembly close to the liquid storage tank is connected to the liquid return assembly, and the detection assembly far from the liquid storage tank is connected to the filtered liquid outlet assembly;

[0013] Between the detection assemblies, a second pipeline for balancing the air pressure of the detection assemblies is fixedly connected. The air inlet of the detection assembly far from the liquid storage tank is connected to a gas filtration assembly for dust filtration;

[0014] At the installation hole at the lower end of the side wall of the liquid storage tank, a temperature sensor for temperature monitoring is fixedly connected.

[0015] Furthermore, the liquid return assembly includes a liquid return pump, a first pipeline, a three-way valve, and a drain pipe. The lower end through hole of the detection assembly close to the liquid storage tank is fixedly connected to the feed end of the three-way valve through a pipeline. One set of discharge ends of the three-way valve is fixedly connected to the drain pipe, and a first pipeline is fixedly connected between the other set of discharge ends of the three-way valve and the liquid storage tank, and a liquid return pump is installed on the first pipeline.

[0016] Furthermore, the filtered liquid outlet assembly includes a filtration assembly and a follow-up plugging assembly. The filtration assembly is connected to the bottom of the liquid storage tank, the filtration assembly is connected to the follow-up plugging assembly, and the follow-up plugging assembly is connected to the liquid storage tank.

[0017] Furthermore, the filtration assembly includes a straight pipe, a mounting cover, a liquid outlet pipe, a filter cartridge, and a push rod. The straight pipe is fixedly installed at the bottom of the liquid storage tank, the liquid outlet pipe is fixedly connected to the side wall of the straight pipe, and the liquid outlet pipe is fixedly connected to the detection assembly far from the liquid storage tank. The bottom of the straight pipe is threadedly connected to the mounting cover, and the filter cartridge and the push rod are fixedly connected to the inner bottom of the mounting cover, and the push rod is located inside the filter cartridge. Both the filter cartridge and the push rod are connected to the follow-up plugging assembly;

[0018] The connection part of the liquid outlet pipe and the straight pipe is lower than the top of the filter cartridge.

[0019] Further, the follow-up plugging assembly includes a horizontal plate, a conical plugging block, an annular conical block, a sliding rod and a spring. The upper end of the inner wall of the straight pipe is fixedly connected with the horizontal plate. The bottom of the horizontal plate is fixedly connected with the spring. The bottom of the spring is fixedly connected with the conical plugging block. The top of the conical plugging block is fixedly connected with a sliding rod that fits and slides in the sliding hole opened on the horizontal plate. The inner wall of the straight pipe is fixedly connected with an annular conical block that is used in cooperation with the conical plugging block. After the straight pipe and the installation cover are in full contact, the sliding rod pushes the conical plugging block to move upward, and there is a gap between the conical plugging block and the annular conical block. After the straight pipe and the installation cover are completely separated, the push rod is separated from the conical plugging block, and the conical plugging block is in close contact with the annular conical block.

[0020] Further, the top of the filter cartridge is in close contact with the bottom of the annular conical block.

[0021] Further, the detection assembly includes a Beidou positioning sensor, a detection cylinder, a partition board and an ultrasonic transceiver. Partition boards are installed at both the upper end and the lower end of the inner wall of the detection cylinder. A Beidou positioning sensor that cooperates with Beidou satellites is installed on the top of the upper partition board, and an ultrasonic transceiver is installed in the installation hole of the lower partition board.

[0022] Further, the calibration auxiliary assembly includes a motor, a threaded rod, a movable plate and a guide rod. The motor is fixedly connected to the top of the upper partition board. The output end of the motor is fixedly connected to the threaded rod. The movable plate is threadedly connected to the threaded rod through a threaded sleeve. The movable plate fits and slides through a sliding hole on the guide rod. The top of the guide rod is fixedly connected to the bottom of the upper partition board.

[0023] Further, the end of the movable plate away from the guide rod is located directly above the detection end of the ultrasonic transceiver.

[0024] To better achieve the object of the present invention, the present invention also provides a method for using a building settlement monitoring device based on Beidou positioning, including the following steps:

[0025] Step 1: The motor of the calibration auxiliary assembly drives the threaded rod to rotate. The threaded rod drives the movable plate to move downward along the guide rod until the guide rod moves below the coolant. Determine the distance D from the movable plate to the ultrasonic transceiver according to the rotation of the motor. The temperature sensor detects the coolant temperature T. Determine the propagation speed V0 of ultrasonic waves in the coolant at temperature T according to the temperature T. Then the ultrasonic transceiver emits ultrasonic waves, which are reflected by the liquid level of the coolant in the detection cylinder, and the ultrasonic transceiver then receives the ultrasonic waves. The data collection device counts the time t0 from the emission of the ultrasonic waves to the reception of the ultrasonic waves, calculates the distance S between the ultrasonic transceiver and the movable plate, and calibrates the ultrasonic transceiver according to D and S;

[0026] Step 2: The ultrasonic transceiver of the detection component emits ultrasonic waves, which are reflected by the coolant liquid level in the detection cylinder. Then the ultrasonic transceiver receives the ultrasonic waves. The data collection device counts the time t from the emission of the ultrasonic waves to the reception of the ultrasonic waves. Then, through the ultrasonic wave propagation speed v, the liquid level height H = v * t / 2 is calculated. The difference between the H value detected by each detection component and the set value is judged. When the difference is zero, there is no settlement. When the difference is less than zero, uplift occurs at the detection component corresponding to the difference less than zero. When the difference is greater than zero, settlement occurs at the detection component corresponding to the difference less than zero. At the same time, the detection component where uplift or settlement occurs is determined by the corresponding Beidou positioning sensor cooperating with the Beidou satellite.

[0027] Step 3: The three-way valve of the liquid return component opens towards the first pipeline. The liquid return pump pumps the coolant in the detection component close to the liquid storage tank into the first pipeline, then enters the liquid storage tank through the first pipeline, and then enters the detection component far from the liquid storage tank through the filtering liquid outlet component, and flows through the third pipeline.

[0028] Step 4: The mounting cover of the filtering component of the filtering liquid outlet component rotates along the straight pipe. When the straight pipe is in full contact with the mounting cover, the mounting cover drives the push rod to move upward, and the push rod drives the conical plugging block to move upward. There is a gap between the conical plugging block and the annular conical block. The coolant enters the filter cylinder through the straight pipe, and the filter cylinder filters the coolant. The filtered coolant enters the detection component, and the coolant circulates.

[0029] The present invention has the following technical effects:

[0030] In the present invention, the liquid return component pumps the coolant in the detection component into the liquid storage tank, the filtering liquid outlet component filters the coolant in the liquid storage tank, and the coolant circulates, avoiding impurities from entering the detection component and preventing impurities from affecting the accuracy of the detection component, which is conducive to the accurate monitoring of the detection component; the calibration auxiliary component and the temperature sensor cooperate to calibrate the detection component, which is beneficial to ensuring the accuracy of the detection component; when the air pressure of the detection component and the liquid storage tank is balanced, air enters the liquid storage tank and the detection component, and the gas filtering component filters the dust in the air, preventing the dust from entering the liquid storage tank and the detection component, and avoiding the dust from affecting the accuracy of the detection component, which is conducive to the accurate monitoring of the detection component; the detection component cooperates with the Beidou satellite for Beidou positioning, which is beneficial to accurately finding the settlement or uplift position. Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 For a three-dimensional building settlement monitoring device based on Beidou positioning of the present invention Figure 1 ;

[0033] Figure 2 For a front view of a building settlement monitoring device based on Beidou positioning of the present invention;

[0034] Figure 3 For a left view of a building settlement monitoring device based on Beidou positioning of the present invention;

[0035] Figure 4 For a three-dimensional building settlement monitoring device based on Beidou positioning of the present invention Figure 2 ;

[0036] Figure 5 Is a sectional view along the A-A direction of Figure 2 ;

[0037] Figure 6 Is a sectional view along the B-B direction of Figure 3 ;

[0038] Figure 7 Is Figure 6 A magnified view of the structure at C;

[0039] Figure 8 Is Figure 6 A magnified view of the structure at D.

[0040] The reference numerals in the figure respectively represent:

[0041] 1. Liquid storage tank 2. Temperature sensor 3. Filtering liquid outlet assembly 31. Straight pipe 32. Installation cover 33. Liquid outlet pipe 34. Horizontal plate 35. Conical plugging block 36. Annular conical block 37. Filter cartridge 38. Push rod 39. Slide rod 310. Spring 4. Liquid return assembly 41. Liquid return pump 42. First pipeline 43. Three-way valve 44. Drain pipe 5. Second pipeline 6. Gas filtering assembly 61. Air inlet pipe 62. Installation ring 63. Filter net 7. Detection assembly 71. Beidou positioning sensor 72. Detection cylinder 73. Partition board 74. Ultrasonic transceiver 8. Third pipeline 9. Calibration auxiliary assembly 91. Motor 92. Threaded rod 93. Movable plate 94. Guide rod 10. Fourth pipeline. Detailed implementation mode

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0043] The present invention will be further described below in conjunction with embodiments.

[0044] As mentioned in the following description, "left", "right", "front", "rear", "up", and "down" are oriented in the perspective direction of the front view.

[0045] Embodiment 1

[0046] Please refer to Figures 1 - 8 , a building settlement monitoring device based on Beidou positioning, including a liquid storage tank 1;

[0047] A fourth pipeline 10 for balancing the air pressure in the liquid storage tank 1 and a liquid return assembly 4 for coolant recovery are fixedly connected to the through hole at the upper end of the side wall of the liquid storage tank 1;

[0048] A filtered liquid outlet assembly 3 for filtering the coolant is installed at the bottom of the liquid storage tank 1, and multiple groups of detection assemblies 7 are arranged between the filtered liquid outlet assembly 3 and the liquid return assembly 4;

[0049] A calibration auxiliary assembly 9 for assisting in calibrating the detection assembly 7 is installed in the detection assembly 7;

[0050] A third pipeline 8 for guiding liquid for the detection assembly 7 is fixedly connected between the detection assemblies 7. The detection assembly 7 close to the liquid storage tank 1 is connected to the liquid return assembly 4, and the detection assembly 7 far from the liquid storage tank 1 is connected to the filtered liquid outlet assembly 3;

[0051] A second pipeline 5 for balancing the air pressure of the detection assembly 7 is fixedly connected between the detection assemblies 7. The air inlet of the detection assembly 7 far from the liquid storage tank 1 is connected to a gas filtration assembly 6 for dust filtration;

[0052] A temperature sensor 2 for temperature monitoring is fixedly connected to the installation hole at the lower end of the side wall of the liquid storage tank 1;

[0053] The liquid return assembly 4 pumps the coolant in the detection assembly 7 into the liquid storage tank 1. The filtering and liquid discharging assembly 3 filters the coolant in the liquid storage tank 1. The coolant circulates to prevent impurities from entering the detection assembly 7 and affecting the accuracy of the detection assembly 7, which is conducive to the accurate monitoring of the detection assembly 7. The calibration auxiliary assembly 9 and the temperature sensor 2 cooperate to calibrate the detection assembly 7, which is beneficial to ensuring the accuracy of the detection assembly 7. When the air pressure in the detection assembly 7 and the liquid storage tank 1 is balanced, air enters the liquid storage tank 1 and the detection assembly 7. The gas filtering assembly 6 filters the dust in the air to prevent the dust from entering the liquid storage tank 1 and the detection assembly 7, and further prevents the dust from entering the detection assembly 7 and affecting the accuracy of the detection assembly 7, which is conducive to the accurate monitoring of the detection assembly 7. The detection assembly 7 cooperates with the Beidou satellite for Beidou positioning, which is conducive to accurately finding the settlement or uplift position.

[0054] The liquid return assembly 4 includes a liquid return pump 41, a first pipeline 42, a three-way valve 43 and a liquid discharge pipe 44. The lower through hole of the detection assembly 7 close to the liquid storage tank 1 is fixedly connected to the feed end of the three-way valve 43 through a pipeline. One set of discharge ends of the three-way valve 43 is fixedly connected to the liquid discharge pipe 44. A first pipeline 42 is fixedly connected between the other set of discharge ends of the three-way valve 43 and the liquid storage tank 1, and a liquid return pump 41 is installed on the first pipeline 42.

[0055] When the coolant circulates, the three-way valve 43 of the liquid return assembly 4 opens towards the first pipeline 42. The liquid return pump 41 pumps the coolant in the detection assembly 7 close to the liquid storage tank 1 into the first pipeline 42, then enters the liquid storage tank 1 through the first pipeline 42, and then enters the detection assembly 7 far from the liquid storage tank 1 through the filtering and liquid discharging assembly 3 and flows through the third pipeline 8 to realize the overall circulation of the coolant.

[0056] When the coolant is discharged, the three-way valve 43 opens towards the liquid discharge pipe 44, and the coolant in the liquid storage tank 1 and the detection assembly 7 is discharged through the liquid discharge pipe 44, which is convenient for discharging the coolant.

[0057] The filtering and liquid discharging assembly 3 includes a filtering assembly and a follow-up plugging assembly. The filtering assembly is connected to the bottom of the liquid storage tank 1, the filtering assembly is connected to the follow-up plugging assembly, and the follow-up plugging assembly is connected to the liquid storage tank 1.

[0058] The filtering assembly includes a straight pipe 31, a mounting cover 32, a liquid outlet pipe 33, a filter cartridge 37 and a push rod 38. The straight pipe 31 is fixedly installed at the bottom of the liquid storage tank 1. A liquid outlet pipe 33 is fixedly connected to the side wall of the straight pipe 31, and the liquid outlet pipe 33 is fixedly connected to the detection assembly 7 far from the liquid storage tank 1. The bottom of the straight pipe 31 is threadedly connected to the mounting cover 32. A filter cartridge 37 and a push rod 38 are fixedly connected to the inner bottom of the mounting cover 32, and the push rod 38 is located inside the filter cartridge 37. Both the filter cartridge 37 and the push rod 38 are connected to the follow-up plugging assembly.

[0059] The connection part of the liquid outlet pipe 33 and the straight pipe 31 is lower than the top of the filter cartridge 37;

[0060] The follow-up plugging assembly includes a cross plate 34, a conical plugging block 35, an annular conical block 36, a sliding rod 39 and a spring 310. The upper end inner wall of the straight pipe 31 is fixedly connected with a cross plate 34. The bottom of the cross plate 34 is fixedly connected with a spring 310. The bottom of the spring 310 is fixedly connected with a conical plugging block 35. The top of the conical plugging block 35 is fixedly connected with a sliding rod 39 that fits and slides with the sliding hole opened on the cross plate 34. The inner wall of the straight pipe 31 is fixedly connected with an annular conical block 36 that is used in cooperation with the conical plugging block 35; After the straight pipe 31 and the mounting cover 32 are in full contact, the sliding rod 39 pushes the conical plugging block 35 to move upward, and there is a gap between the conical plugging block 35 and the annular conical block 36. After the straight pipe 31 and the mounting cover 32 are completely separated, the push rod 38 is separated from the conical plugging block 35, and the conical plugging block 35 is in close contact with the annular conical block 36;

[0061] The top of the filter cartridge 37 is in close contact with the bottom of the annular conical block 36;

[0062] During filtration, the mounting cover 32 of the filter assembly of the filter liquid outlet assembly 3 rotates along the straight pipe 31. When the straight pipe 31 and the mounting cover 32 are in full contact, the mounting cover 32 drives the push rod 38 to move upward, the push rod 38 drives the conical plugging block 35 to move upward, and there is a gap between the conical plugging block 35 and the annular conical block 36. The coolant enters the filter cartridge 37 through the straight pipe 31, the filter cartridge 37 filters, the filtered coolant enters the liquid outlet pipe 33, and the coolant circulates, preventing impurities from entering the detection assembly 7 and avoiding impurities from affecting the accuracy of the detection assembly 7, which is conducive to the accurate monitoring of the detection assembly 7;

[0063] When it is necessary to clean the impurities in the filter cartridge 37, the mounting cover 32 rotates downward along the straight pipe 31. When the straight pipe 31 and the mounting cover 32 are completely separated, the mounting cover 32 drives the push rod 38 to move downward, the spring 310 drives the conical plugging block 35 to move downward, the mounting cover 32 and the straight pipe 31 are completely separated, the push rod 38 is separated from the conical plugging block 35, and the conical plugging block 35 is in close contact with the annular conical block 36. After the conical plugging block 35 and the annular conical block 36 are in close contact, the coolant in the liquid storage tank 1 can be prevented from falling, and then the impurities in the filter cartridge 37 can be cleaned, which is convenient for cleaning the impurities;

[0064] The detection assembly 7 includes a Beidou positioning sensor 71, a detection cylinder 72, a partition plate 73 and an ultrasonic transceiver 74. Partition plates 73 are installed at both the upper end and the lower end inner walls of the detection cylinder 72. The Beidou positioning sensor 71 that cooperates with Beidou satellites is installed on the top of the upper partition plate 73, and the ultrasonic transceiver 74 is installed in the installation hole of the lower partition plate 73;

[0065] Both the Beidou positioning sensor 71 and the ultrasonic transceiver 74 are connected to the data collection device;

[0066] The air holes on both sides of the upper end of the detection cylinder 72 near the liquid storage tank 1 are connected to the second pipeline 5 and the fourth pipeline 10. The air holes on both sides of the upper end of the detection cylinder 72 in the middle group are connected to the second pipeline 5. The air holes on both sides of the upper end of the detection cylinder 72 far from the liquid storage tank 1 are connected to the second pipeline 5 and the gas filtration component 6;

[0067] The horizontal holes on both sides of the lower end of the detection cylinder 72 near the liquid storage tank 1 are connected to the pipeline connected to the three-way valve 43 and the third pipeline 8. The horizontal holes on both sides of the lower end of the detection cylinder 72 in the middle group are connected to the third pipeline 8. The horizontal holes on both sides of the lower end of the detection cylinder 72 far from the liquid storage tank 1 are connected to the third pipeline 8 and the liquid outlet pipe 33;

[0068] During detection, the ultrasonic transceiver 74 of the detection component 7 emits ultrasonic waves, which are reflected by the coolant liquid level in the detection cylinder 72, and then the ultrasonic transceiver 74 receives the ultrasonic waves. The data collection device counts the time t from the emission of the ultrasonic waves to the reception of the ultrasonic waves, and then calculates the liquid level height H = v * t / 2 through the ultrasonic wave propagation speed v. It judges the difference between the H value detected by each detection component 7 and the set value. When the difference is zero, no settlement occurs. When the difference is less than zero, uplift occurs at the detection component 7 corresponding to the difference less than zero. When the difference is greater than zero, settlement occurs at the detection component 7 corresponding to the difference less than zero. At the same time, the corresponding Beidou positioning sensor 71 is used in cooperation with the Beidou satellite to determine the detection component 7 where uplift or settlement occurs, which is beneficial to accurately find the position of uplift or settlement;

[0069] The calibration auxiliary component 9 includes a motor 91, a threaded rod 92, a movable plate 93 and a guide rod 94. The motor 91 is fixedly connected to the top of the partition plate 73 at the upper end. The output end of the motor 91 is fixedly connected to the threaded rod 92. The movable plate 93 is threadedly connected to the threaded rod 92 through a threaded sleeve. The movable plate 93 is slidably connected to the guide rod 94 through a sliding hole. The top of the guide rod 94 is fixedly connected to the bottom of the partition plate 73 at the upper end;

[0070] The end of the movable plate 93 far from the guide rod 94 is located directly above the detection end of the ultrasonic transceiver 74;

[0071] During calibration, the motor 91 of the calibration auxiliary component 9 drives the threaded rod 92 to rotate. The threaded rod 92 drives the movable plate 93 to move downward along the guide rod 94. The guide rod 94 moves below the coolant. The distance D from the movable plate 93 to the ultrasonic transceiver 74 is determined according to the rotation of the motor 91. The temperature sensor 2 detects the coolant temperature T. The propagation speed V0 of ultrasonic waves in the coolant at temperature T is determined according to the temperature T. Then the ultrasonic transceiver 74 emits ultrasonic waves. After being reflected by the liquid level of the coolant in the detection cylinder 72, the ultrasonic transceiver 74 receives the ultrasonic waves again. The data collection device counts the time t0 from the emission of the ultrasonic waves to the reception of the ultrasonic waves, calculates the distance S between the ultrasonic transceiver 74 and the movable plate 93, and calibrates the ultrasonic transceiver 74 according to D and S, which is beneficial to ensuring the accuracy of the detection component 7.

[0072] The gas filtration component 6 includes an air inlet pipe 61, a mounting ring 62 and a filter net 63. The air holes on both sides of the upper end of the detection cylinder 72 away from the liquid storage tank 1 are fixedly connected to the outer end of the air inlet pipe 61. The outer end of the air inlet pipe 61 is threadedly connected with a mounting ring 62, and a filter net 63 is installed inside the mounting ring 62;

[0073] The air inlet pipe 61, the mounting ring 62 and the filter net 63 conduct air guiding treatment to achieve air pressure balance between the liquid storage tank 1 and the detection component 7. When air flows, the filter net 63 filters dust in the air to prevent dust from entering the liquid storage tank 1 and the detection component 7, and to prevent dust from affecting the accuracy of the detection component 7, which is beneficial to the accurate monitoring of the detection component 7.

[0074] To better achieve the purpose of the present invention, the present invention also provides a usage method of a building settlement monitoring device based on Beidou positioning, including the following steps:

[0075] To better achieve the purpose of the present invention, the present invention also provides a usage method of a building settlement monitoring device based on Beidou positioning, including the following steps:

[0076] Step 1: The motor 91 of the calibration auxiliary component 9 drives the threaded rod 92 to rotate. The threaded rod 92 drives the movable plate 93 to move downward along the guide rod 94. The guide rod 94 moves below the coolant. The distance D from the movable plate 93 to the ultrasonic transceiver 74 is determined according to the rotation of the motor 91. The temperature sensor 2 detects the coolant temperature T. The propagation speed V0 of ultrasonic waves in the coolant at temperature T is determined according to the temperature T. Then the ultrasonic transceiver 74 emits ultrasonic waves. After being reflected by the liquid level of the coolant in the detection cylinder 72, the ultrasonic transceiver 74 receives the ultrasonic waves again. The data collection device counts the time t0 from the emission of the ultrasonic waves to the reception of the ultrasonic waves, calculates the distance S between the ultrasonic transceiver 74 and the movable plate 93, and calibrates the ultrasonic transceiver 74 according to D and S;

[0077] Step 2: The ultrasonic transceiver 74 of the detection component 7 emits ultrasonic waves, which are reflected by the liquid level of the coolant in the detection cylinder 72, and then received by the ultrasonic transceiver 74. The data collection device counts the time t from the emission of the ultrasonic waves to the reception of the ultrasonic waves, and then calculates the liquid level height H = v * t / 2 through the ultrasonic wave propagation speed v. It judges the difference between the H value detected by each detection component 7 and the set value. When the difference is zero, there is no settlement. When the difference is less than zero, uplift occurs at the detection component 7 corresponding to the difference less than zero. When the difference is greater than zero, settlement occurs at the detection component 7 corresponding to the difference less than zero. At the same time, the detection component 7 where uplift or settlement occurs is determined through the cooperation of the corresponding Beidou positioning sensor 71 and Beidou satellites;

[0078] Step 3: The three-way valve 43 of the liquid return component 4 is opened towards the first pipeline 42, and the liquid return pump 41 pumps the coolant in the detection component 7 close to the liquid storage tank 1 into the first pipeline 42, then enters the liquid storage tank 1 through the first pipeline 42, and then enters the detection component 7 far from the liquid storage tank 1 through the filter liquid outlet component 3 and flows through the third pipeline 8;

[0079] Step 4: The installation cover 32 of the filter component of the filter liquid outlet component 3 rotates along the straight pipe 31. When the straight pipe 31 is in full contact with the installation cover 32, the installation cover 32 drives the push rod 38 to move upward, and the push rod 38 drives the conical plug 35 to move upward. There is a gap between the conical plug 35 and the annular conical block 36, and the coolant enters the filter cylinder 37 through the straight pipe 31. The filter cylinder 37 filters the coolant, and the filtered coolant enters the detection component 7, and the coolant circulates.

[0080] The specific operation steps of Step 1 are as follows:

[0081] Step 11: Calculate the distance D from the movable plate 93 to the ultrasonic transceiver 74:

[0082] D = S0 - n * L0;

[0083] Wherein, S0 is the distance between the bottom of the upper partition plate 73 and the top of the lower partition plate 73, n is the number of rotation turns of the motor 91, and L0 is the pitch of the threaded rod 92;

[0084] Step 12: The temperature sensor 2 detects the coolant temperature T, and determines the ultrasonic wave propagation speed V0 in the coolant at temperature T according to the temperature T;

[0085] Step 13: The ultrasonic transceiver 74 detects the distance S from the movable plate 93 to the ultrasonic transceiver 74:

[0086] S = V0 * t0;

[0087] Step 14: Determine whether the difference between D and S is equal to zero. If the judgment is yes, the ultrasonic transceiver 74 is in the standard state. If the judgment is no, execute Step 15;

[0088] Step 15: Determine the speed V1 according to D, replace V0 with V1 for storage, and use V1 for subsequent detection.

[0089] V 1＝ S0 / t0.

[0090] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A building settlement monitoring device based on Beidou positioning, comprising a liquid storage tank (1), characterized in that: At the through-hole at the upper end of the side wall of the liquid storage tank (1), a fourth pipeline (10) for balancing the air pressure in the liquid storage tank (1) and a liquid return assembly (4) for coolant recovery are fixedly connected; A filtered liquid outlet assembly (3) for coolant filtration is installed at the bottom of the liquid storage tank (1), and multiple detection assemblies (7) are arranged between the filtered liquid outlet assembly (3) and the liquid return assembly (4); A calibration auxiliary assembly (9) for auxiliary calibration of the detection assembly (7) is installed in the detection assembly (7); A third pipeline (8) for guiding liquid for the detection assembly (7) is fixedly connected between the detection assemblies (7). The detection assembly (7) close to the liquid storage tank (1) is connected to the liquid return assembly (4), and the detection assembly (7) far from the liquid storage tank (1) is connected to the filtered liquid outlet assembly (3); A second pipeline (5) for balancing the air pressure of the detection assembly (7) is fixedly connected between the detection assemblies (7). The air inlet of the detection assembly (7) far from the liquid storage tank (1) is connected to a gas filtration assembly (6) for dust filtration; A temperature sensor (2) for temperature monitoring is fixedly connected to the installation hole at the lower end of the side wall of the liquid storage tank (1).

2. The building settlement monitoring device based on Beidou positioning according to claim 1, characterized in that, The liquid return assembly (4) includes a liquid return pump (41), a first pipeline (42), a three-way valve (43) and a drain pipe (44). The through-hole at the lower end of the detection assembly (7) close to the liquid storage tank (1) is fixedly connected to the feed end of the three-way valve (43) through a pipeline. One set of discharge ends of the three-way valve (43) is fixedly connected to the drain pipe (44), and a first pipeline (42) is fixedly connected between the other set of discharge ends of the three-way valve (43) and the liquid storage tank (1). A liquid return pump (41) is installed on the first pipeline (42).

3. The building settlement monitoring device based on Beidou positioning according to claim 2, wherein, The filtered liquid outlet assembly (3) includes a filtering assembly and a follow-up plugging assembly. The filtering assembly is connected to the bottom of the liquid storage tank (1), the filtering assembly is connected to the follow-up plugging assembly, and the follow-up plugging assembly is connected to the liquid storage tank (1).

4. The building settlement monitoring device based on Beidou positioning according to claim 3, characterized in that, The filtering assembly includes a straight pipe (31), a mounting cover (32), a liquid outlet pipe (33), a filter cartridge (37) and a push rod (38). The straight pipe (31) is fixedly installed at the bottom of the liquid storage tank (1). A liquid outlet pipe (33) is fixedly connected to the side wall of the straight pipe (31), and the liquid outlet pipe (33) is fixedly connected to the detection assembly (7) far from the liquid storage tank (1). The bottom of the straight pipe (31) is threadedly connected to the mounting cover (32). A filter cartridge (37) and a push rod (38) are fixedly connected to the inner bottom of the mounting cover (32), and the push rod (38) is located inside the filter cartridge (37). Both the filter cartridge (37) and the push rod (38) are connected to the follow-up plugging assembly; The connection part of the liquid outlet pipe (33) and the straight pipe (31) is lower than the top of the filter cartridge (37).

5. The building settlement monitoring device based on Beidou positioning according to claim 4, wherein The follow-up plugging component includes a horizontal plate (34), a conical plugging block (35), an annular conical block (36), a slide rod (39) and a spring (310). The upper end of the inner wall of the straight pipe (31) is fixedly connected with a horizontal plate (34). The bottom of the horizontal plate (34) is fixedly connected with a spring (310). The bottom of the spring (310) is fixedly connected with a conical plugging block (35). The top of the conical plugging block (35) is fixedly connected with a slide rod (39) that fits and slides with the slide hole formed in the horizontal plate (34). The inner wall of the straight pipe (31) is fixedly connected with an annular conical block (36) that is used in cooperation with the conical plugging block (35). After the straight pipe (31) and the mounting cover (32) are in full contact, the slide rod (39) pushes the conical plugging block (35) to move upward, and there is a gap between the conical plugging block (35) and the annular conical block (36). After the straight pipe (31) and the mounting cover (32) are completely separated, the push rod (38) is separated from the conical plugging block (35), and the conical plugging block (35) is in close contact with the annular conical block (36).

6. The building settlement monitoring device based on Beidou positioning according to claim 5, characterized in that, The top of the filter cartridge (37) is in close contact with the bottom of the annular conical block (36).

7. The building settlement monitoring device based on Beidou positioning according to claim 6, characterized in that, The detection component (7) includes a Beidou positioning sensor (71), a detection cylinder (72), a partition board (73) and an ultrasonic transceiver (74). Partition boards (73) are installed at both the upper end and the lower end of the inner wall of the detection cylinder (72). The Beidou positioning sensor (71) that cooperates with the Beidou satellite is installed at the top of the upper partition board (73). The ultrasonic transceiver (74) is installed in the installation hole of the lower partition board (73).

8. The building settlement monitoring device based on Beidou positioning according to claim 7, characterized in that, The calibration auxiliary component (9) includes a motor (91), a threaded rod (92), a movable plate (93) and a guide rod (94). The motor (91) is fixedly connected to the top of the upper partition board (73). The output end of the motor (91) is fixedly connected with a threaded rod (92). The movable plate (93) is threadedly connected to the threaded rod (92) through a threaded sleeve. The movable plate (93) fits and slides with the guide rod (94) through a slide hole. The top of the guide rod (94) is fixedly connected to the bottom of the upper partition board (73).

9. The building settlement monitoring device based on Beidou positioning according to claim 8, wherein The end of the movable plate (93) away from the guide rod (94) is located directly above the detection end of the ultrasonic transceiver (74).

10. A method for using a building settlement monitoring device based on Beidou positioning as described in any one of claims 7-9, characterized in that, It includes the following steps: Step 1: The calibration auxiliary component (9) determines the distance D from the calibration auxiliary component (9) to the ultrasonic transceiver (74). The temperature sensor (2) detects the coolant temperature T. According to the temperature T, the propagation speed V0 of ultrasonic waves in the coolant at temperature T is determined. Then the ultrasonic transceiver (74) emits ultrasonic waves. After being reflected by the coolant liquid level in the detection cylinder (72), the ultrasonic transceiver (74) receives the ultrasonic waves again. The data collection device counts the time t0 from the emission of the ultrasonic waves to the reception of the ultrasonic waves, calculates the distance S between the ultrasonic transceiver (74) and the movable plate (93), and calibrates the ultrasonic transceiver (74) according to D and S; Step 2: The ultrasonic transceiver (74) of the detection component (7) emits ultrasonic waves. After being reflected by the liquid level of the coolant in the detection cylinder (72), the ultrasonic transceiver (74) receives the ultrasonic waves again. The data collection device counts the time t from the emission of the ultrasonic waves to the reception of the ultrasonic waves, and then calculates the liquid level height H = v * t / 2 through the ultrasonic wave propagation speed v. Determine the magnitude of the difference between the H value detected by each detection component (7) and the set value. When the difference is zero, no settlement occurs. When the difference is less than zero, uplift occurs at the detection component (7) corresponding to the difference less than zero. When the difference is greater than zero, settlement occurs at the detection component (7) corresponding to the difference less than zero. At the same time, determine the detection component (7) where uplift or settlement occurs through the cooperation of the corresponding Beidou positioning sensor (71) and Beidou satellites; Step 3: The liquid return component (4) pumps the coolant in the detection component (7) close to the liquid storage tank (1) into the liquid return component (4), then enters the liquid storage tank (1) through the liquid return component (4), and then enters the detection component (7) far from the liquid storage tank (1) through the liquid filtering and discharging component (3), and flows through the third pipeline (8); Step 4: The liquid filtering and discharging component (3) filters, and the filtered coolant enters the detection component (7), and the coolant circulates.

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