Static level gauge considering inclination angle and settlement monitoring method

Abstract

The invention provides a static leveling instrument considering an inclination angle and a settlement monitoring method, and belongs to the field of geotechnical engineering settlement monitoring. The static leveling instrument considering the inclination angle comprises an adjustable base, a liquid storage tank, a displacement sensor and an inclination angle sensor. According to the settlement monitoring method, the static leveling instrument considering the dip angle is adopted, the liquid level height change value of the datum point is corrected through the dip angle value of the datum point to obtain a datum value, and the corresponding liquid level height change value is corrected through the dip angle value of each measuring point to obtain the relative settlement value of each measuring point. And subtracting the reference value from the relative settlement value of each measuring point to obtain the settlement value of each measuring point. The displacement sensor is used for detecting the height change of the liquid level in the liquid storage tank, the inclination angle sensor is used for detecting the inclination angle of the liquid storage tank, and the detected height change value is corrected through the detected inclination angle, so that the measurement error caused by equipment inclination is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of geotechnical engineering settlement monitoring, and more specifically, to a static level and a settlement monitoring method taking inclination into consideration. Background Art

[0002] The static level is a precision instrument used to measure the relative settlement of each measuring point of the foundation and building. In coastal and riverside areas, the soil has a high content of soft and cohesive soil, which has the characteristics of low bearing capacity and easy deformation. When constructing large dams, foundation pits, bridges, railways, tunnels and building structures, settlement problems often occur due to the heavy weight of the building or the strong vibration when the track is running. When the settlement is uneven, it will lead to serious consequences such as deformation, cracking and even collapse of the building.

[0003] In order to ensure that the building can be built safely and reliably and maintain its overall integrity during use, it is necessary to measure the settlement of the building at multiple points and calculate the relative change in vertical displacement. However, in the measurement process of conventional static level, there is a large difference between the measured value and the actual settlement, and accurate measurement cannot be achieved; and the commonly used wired transmission has a small range and slow speed, resulting in low data accuracy and poor timeliness, and it is impossible to monitor the uneven settlement in a timely and accurate manner. At the same time, the static level needs to be connected to a power source to continue working, which consumes a lot of electricity and is costly.

[0004] Therefore, there is an urgent need for a static level with high data accuracy and a wide measuring range. Summary of the invention

[0005] In view of this, the embodiments of the present application provide a static level and a settlement monitoring method that take the inclination angle into consideration, so as to solve the technical problem of low accuracy of static levels existing in the prior art.

[0006] To achieve the above purpose, the technical solution adopted in this application is:

[0007] On the one hand, a static level considering the inclination angle is provided, comprising:

[0008] Adjustable base with horizontal adjustment structure;

[0009] A liquid storage tank is arranged on the adjustable base and is suitable for being adjusted to a predetermined state through the horizontal adjustment structure; a liquid communication hole is arranged at the lower part of the liquid storage tank and an air pressure balance hole is arranged at the upper part;

[0010] A displacement sensor, disposed in the liquid storage tank and adapted to detect a height change value of the liquid level in the liquid storage tank;

[0011] The inclination sensor is arranged in the liquid storage tank and is used to measure the inclination value of the location relative to the horizontal plane.

[0012] In some embodiments, the number of the displacement sensors is two, and they are respectively located on two sides of the liquid storage tank and at the same height position of the liquid storage tank.

[0013] In some embodiments, the horizontal adjustment structure includes three height-adjustable legs, and the three height-adjustable legs are located at the bottom of the adjustable base and arranged in a triangle.

[0014] In some embodiments, the static level taking inclination into consideration further includes a plurality of temperature sensors, and the plurality of temperature sensors respectively detect the temperatures of the liquid storage tank, the displacement sensor, and the inclination sensor.

[0015] In some embodiments, a control box is provided on the top of the liquid storage tank, and a control circuit board and a built-in battery are installed in the control box, and the built-in battery supplies power to the circuit board, the displacement sensor and the inclination sensor; the control box is also provided with a charging port, a 485 communication interface and a wireless network card;

[0016] The static level taking the inclination into consideration is also provided with a positioning module.

[0017] In some embodiments, both the air pressure balance hole and the liquid communication hole are provided with valves.

[0018] In some embodiments, the tilt sensor is located at a central position on the top of the fluid storage tank.

[0019] In some embodiments, the tilt sensor is a dual-axis tilt sensor, and the displacement sensor is an ultrasonic displacement sensor.

[0020] In some embodiments, each of the height-adjustable legs is adjusted by rotation, and an adjustment gear is provided on the outer periphery of each of the height-adjustable legs;

[0021] A main gear is disposed at the bottom center of the adjustable base, and each of the adjustment gears is located around the main gear;

[0022] The bottom of the adjustable base is also provided with a synchronous adjustment bracket, and the synchronous adjustment bracket is provided with synchronous gears corresponding to the adjustment gears one by one, and each of the synchronous gears is meshed with the main gear;

[0023] The synchronous adjustment bracket is rotatably arranged and the rotation axis coincides with the rotation axis of the main gear, so that when the synchronous adjustment bracket rotates, each synchronous gear keeps meshing with the main gear, and the synchronous adjustment bracket can be rotated until each synchronous gear is meshed with the corresponding adjustment gear, so that the main gear drives the adjustment gear through the synchronous gear.

[0024] In some embodiments, the synchronous adjustment bracket is provided with a first handle extending to the exterior of the adjustable base;

[0025] The bottom of the adjustable base is also provided with a second handle extending to the outside. The second handle is rotatably arranged and provided with a push tooth suitable for engaging with the main gear. The push tooth is axially slidably arranged along the second handle to switch between engaging and disengaging with the main gear.

[0026] The beneficial effect of the static level considering the inclination angle provided in the embodiment of the present application is that: in the prior art, during the measurement process of the conventional static level, the influence of the inclination of the static level on the measurement is ignored, resulting in a large difference between the measured value and the actual settlement amount; compared with the prior art, when using the static level considering the inclination angle in the embodiment of the present application, more than two static levels considering the inclination angle are respectively placed at a reference point and at least one measuring point, and then liquid is added to the liquid storage tanks of each static level considering the inclination angle to make the liquid level reach a predetermined height; thereafter, the air pressure balance holes of each static level considering the inclination angle are interconnected, and the liquid connecting holes are interconnected, and the measurement of the settlement values ​​of multiple measuring points is achieved by detecting the liquid level changes in the liquid storage tanks of each static level considering the inclination angle;

[0027] A displacement sensor is used to detect the height change of the liquid level in the liquid storage tank, and an inclination sensor is used to detect the inclination of the liquid storage tank. The detected height change value is corrected by the detected inclination, thereby reducing the measurement error caused by the tilt of the equipment;

[0028] In addition, this application also realizes temperature compensation by adding a temperature sensor to further improve the accuracy; adds a built-in battery so that it can be used without a power supply; adopts a 485 communication interface and a wireless network card to realize multiple communication methods; and adds a positioning module to accurately record the geographic coordinates of each measuring point.

[0029] Another technical solution adopted by the present application is to provide a settlement monitoring method, using any of the above-mentioned static level instruments considering the inclination angle, including:

[0030] Fixing a plurality of the static levels taking the inclination angle into consideration at a reference point and at least one measuring point respectively, and keeping the liquid storage tanks of the static levels taking the inclination angle into consideration vertical;

[0031] Filling liquid into the liquid storage tank of each of the static levels taking into account the inclination angle so that the liquid level reaches a predetermined height, and connecting the liquid communication holes of each of the static levels taking into account the inclination angle to each other, and connecting the air pressure balance holes to each other;

[0032] The static level considering the inclination angle located at the reference point and each measuring point detects the change value of the liquid level in the liquid storage tank through a displacement sensor, and detects the inclination value at the location through the inclination sensor of the static level considering the inclination angle;

[0033] Correcting the liquid level change value of the reference point by the inclination value of the reference point to obtain a reference value, and correcting the corresponding liquid level change value by the inclination value of each measuring point to obtain a relative settlement value of each measuring point;

[0034] The settlement value of each measuring point is obtained by subtracting the benchmark value from the relative settlement value of each measuring point.

[0035] In some embodiments, the number of the displacement sensors is two, and they are respectively located on both sides of the liquid storage tank and at the same height position of the liquid storage tank;

[0036] The static level considering the inclination angle located at the reference point and each measuring point detects the change value of the liquid level height in the liquid storage tank through the displacement sensor, including: the static level considering the inclination angle located at the reference point detects the liquid level height values ​​h1 and h2 of the liquid storage tank through the two displacement sensors, and the static level considering the inclination angle located at the measuring point detects the liquid level height values ​​h3 and h4 of the liquid storage tank through the two displacement sensors;

[0037] The detecting the inclination value of the liquid storage tank by the inclination sensor of the static level considering the inclination angle comprises: detecting the inclination value a of the measuring point by the inclination sensor of the static level considering the inclination angle;

[0038] The settlement value of each measuring point is Δh,

[0039]

[0040] The beneficial effect of the settlement monitoring method provided in the embodiment of the present application is that compared with the prior art, the settlement monitoring method in the embodiment of the present application adopts the above-mentioned static level that considers the inclination angle, and fully considers the error caused by the inclination of the liquid storage tank during the monitoring process, thereby greatly improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0042] Figure 1A schematic diagram of the main structure of a static level taking into account the inclination angle provided in an embodiment of the present application;

[0043] Figure 2 for Figure 1 Schematic diagram of the top view of the static level taking the inclination into account;

[0044] Figure 3 for Figure 1 Schematic diagram of the static level considering the inclination angle when viewed from above;

[0045] Figure 4 for Figure 1 A bottom view schematic diagram of another embodiment of a height-adjustable support leg of a static level taking into account the inclination angle, in which the synchronous gear and the regulating gear are in meshing state;

[0046] Figure 5 for Figure 4 Schematic diagram of the separation state of the synchronization gear and the adjustment gear of the mid-height adjustable outrigger;

[0047] Figure 6 Flow chart of the settlement monitoring method.

[0048] Among them, the reference numerals in the figure are:

[0049] 1-adjustable base; 11-height adjustable legs; 12-adjusting gear; 13-main gear; 14-synchronous adjustment bracket; 15-synchronous gear; 16-first handle; 17-second handle; 18-push gear; 2-liquid storage tank; 21-liquid connecting hole; 22-air pressure balance hole; 3-control box; 31-displacement sensor; 4-tilt sensor; 5-valve. DETAILED DESCRIPTION

[0050] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0051] It should be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0052] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0054] Please also read Figures 1 to 6 Now, the static level considering the inclination angle provided in the embodiment of the present application is described. A static level considering the inclination angle includes: an adjustable base, a liquid storage tank, a displacement sensor and an inclination sensor.

[0055] The adjustable base has a horizontal adjustment structure; the liquid storage tank is arranged on the upper part of the adjustable base, and is suitable for being adjusted to a predetermined state through the horizontal adjustment structure; the lower part of the liquid storage tank is provided with a liquid connecting hole, and the upper part is provided with an air pressure balance hole; the displacement sensor is arranged in the liquid storage tank, and is suitable for detecting the height change value of the liquid level in the liquid storage tank; the inclination sensor is arranged in the liquid storage tank, and is used to measure the inclination value relative to the horizontal plane.

[0056] Compared with the prior art, the static level taking the inclination angle into consideration in the embodiment of the present application, when in use, two or more static levels taking the inclination angle into consideration are respectively placed at a reference point and at least one measuring point, and then liquid is added to the liquid storage tanks of each static level taking the inclination angle into consideration so that the liquid level reaches a predetermined height; thereafter, the air pressure balance holes of each static level taking the inclination angle into consideration are connected to each other, and the liquid connecting holes are connected to each other, and the measurement of the settlement values ​​of multiple measuring points is achieved by detecting the liquid level changes in the liquid storage tanks of each static level taking the inclination angle into consideration.

[0057] A displacement sensor is used to detect the height change of the liquid level in the liquid storage tank, and an inclination sensor is used to detect the inclination of the liquid storage tank. The detected height change value is corrected by the detected inclination, thereby reducing the measurement error caused by the tilt of the equipment.

[0058] In addition, this application also realizes temperature compensation by adding a temperature sensor to further improve the accuracy; adds a built-in battery so that it can be used without a power supply; adopts a 485 communication interface and a wireless network card to realize multiple communication methods; and adds a positioning module to accurately record the geographic coordinates of each measuring point.

[0059] In this embodiment, the adjustable base is provided with a horizontal adjustment structure. After the static level taking the inclination into consideration is placed at the measuring point, the liquid storage tank is adjusted to a nearly vertical posture through the horizontal adjustment structure.

[0060] The liquid storage tank is a sealed tank body, which ensures that the amount of liquid is constant and will not be reduced due to leakage or evaporation. The liquid contained in the liquid storage tank can be antifreeze, so that it can be used normally under low temperature conditions. When in use, the liquid connecting holes and air pressure balance holes on the liquid storage tank of the hydrostatic level considering the inclination located at the reference point or different measuring points are connected to form a communicating vessel. When a measuring point settles, the liquid in the liquid storage tank of the hydrostatic level considering the inclination at other measuring points or the reference point flows to the liquid storage tank of the hydrostatic level considering the inclination at the measuring point, causing the liquid level in the liquid storage tank to rise, and the rising value is detected by the displacement sensor, and the settlement value can be calculated based on this value.

[0061] The displacement sensor uses a high-precision displacement sensor that can detect the displacement of the liquid surface. Usually, a high-precision non-contact displacement sensor is used, such as an ultrasonic displacement sensor, to avoid disturbing the liquid surface. The inclination sensor can use a high-precision gyroscope or other sensor to detect the inclination change of the liquid storage tank relative to the horizontal plane, thereby detecting the inclination value of the measuring point or reference point relative to the horizontal plane, and correcting the page lifting value detected by the displacement sensor through the detected inclination angle.

[0062] See also Figure 1 and Figure 2 As a specific implementation of the static level taking the inclination angle into consideration provided in the present application, the number of the displacement sensors is two, and they are respectively located on both sides of the liquid storage tank and at the same height position of the liquid storage tank.

[0063] See also Figure 3 As a specific embodiment of the static level taking the inclination angle into consideration provided in the present application, the horizontal adjustment structure includes three height-adjustable legs, and the three height-adjustable legs are located at the bottom of the adjustable base and arranged in a triangle.

[0064] In this embodiment, after the static level that takes the inclination into consideration is placed at the measuring point, the liquid storage tank can be placed in a vertical state by adjusting the heights of the three height-adjustable legs.

[0065] In a specific implementation, the upper end of the height-adjustable leg is fixed to the bottom of the adjustable base, and the lower end of the height-adjustable leg supports the ground. The upper and lower ends of the height-adjustable leg are connected by a threaded structure, and the overall height of the height-adjustable leg can be adjusted by rotating the lower end of the height-adjustable leg.

[0066] As a specific implementation of the static level taking inclination into consideration provided in the present application, the static level taking inclination into consideration further includes a plurality of temperature sensors, and the plurality of temperature sensors respectively detect the temperatures of the liquid storage tank, the displacement sensor, and the inclination sensor.

[0067] In this embodiment, the temperature of the liquid storage tank is detected by a temperature sensor, and the detection data deviation caused by the thermal expansion and contraction of the liquid can be compensated by the temperature data. The temperature of the displacement sensor is detected by a temperature sensor, and the detection data deviation caused by the temperature change of the displacement sensor can be compensated by the temperature data. The temperature of the inclination sensor is detected by a temperature sensor, and the detection data deviation caused by the temperature change of the inclination sensor can be compensated by the temperature data.

[0068] See also Figure 1 and Figure 2 As a specific implementation of the static level considering the inclination angle provided by the present application, a control box is provided on the top of the liquid storage tank, and a control circuit board and a built-in battery are installed in the control box. The built-in battery supplies power to the circuit board, the displacement sensor and the inclination angle sensor; the control box is also provided with a charging port, a 485 communication interface and a wireless network card. The static level considering the inclination angle is also provided with a positioning module.

[0069] In this embodiment, the built-in battery allows the device to be used independently without a power source, and can continue to measure in emergency situations such as sudden power outages, solving the problem that the instrument cannot work when it is powered off, while avoiding the entanglement of wires and installation troubles caused by connecting to a power source, making it convenient to move and use. The charging port is set to charge the battery conveniently. The device can establish a connection with the data collector through a 485 communication interface or a wireless network card, and the data collector sends the received data to a remote terminal.

[0070] In the specific implementation, the static level taking the inclination into consideration can transmit data through both wired and wireless methods. One method is to use the wireless transmission technology based on the Lora self-organizing network to transmit the settlement data through the wireless network card. It has a large transmission distance, saves costs, has stable transmission, and has a fast transmission speed. It can timely and reliably reflect the settlement status of the measuring point; the other method is to use the 485 communication interface for wired transmission, which is convenient for free switching between wired and wireless transmission, ensuring that when the antenna is damaged or the signal is poor, it can continue to work through wired transmission, avoiding delays in settlement data transmission and data loss.

[0071] The positioning module is used to detect the precise geographic coordinates of each monitoring point. Specifically, the positioning module can adopt a GPS positioning module or a Beidou positioning module.

[0072] See also Figure 1 and Figure 2 As a specific implementation of the static level taking the inclination angle into consideration provided in the present application, both the air pressure balance hole and the liquid connecting hole are provided with valves.

[0073] In this embodiment, when the static level taking into account the inclination angle is used normally, the valves of the air pressure balance hole and the liquid connecting hole are both opened; when the static level taking into account the inclination angle needs to be moved or after the detection is completed, the valves of the air pressure balance hole and the liquid connecting hole can be closed to prevent the liquid in the liquid storage tank from spilling out.

[0074] See also Figure 2 As a specific implementation of the static level considering the inclination angle provided by the present application, the inclination sensor is located at the center of the top of the liquid storage tank. In this embodiment, the inclination sensor can accurately measure the inclination angle of the liquid storage tank.

[0075] See also Figure 1 and Figure 2 As a specific implementation of the static level taking inclination into consideration provided in the present application, the inclination sensor is a dual-axis inclination sensor, and the displacement sensor is an ultrasonic displacement sensor.

[0076] In this embodiment, the inclination sensor is a dual-axis inclination sensor, which can calculate the inclination value of the liquid storage tank in any horizontal direction by monitoring the inclination values ​​in two horizontal directions, especially the inclination value of the liquid storage tank in the direction connecting the two displacement sensors.

[0077] The displacement sensor is an ultrasonic displacement sensor, which can accurately measure the height of the liquid level in a non-contact manner.

[0078] See also Figure 4 and Figure 5 , as a specific implementation of the static level considering the inclination angle provided by the present application, the adjustment method of each of the height-adjustable legs is rotation adjustment, and an adjustment gear is provided on the periphery of each of the height-adjustable legs;

[0079] A main gear is disposed at the bottom center of the adjustable base, and each of the adjustment gears is located around the main gear;

[0080] The bottom of the adjustable base is also provided with a synchronous adjustment bracket, and the synchronous adjustment bracket is provided with synchronous gears corresponding to the adjustment gears one by one, and each of the synchronous gears is meshed with the main gear;

[0081] The synchronous adjustment bracket is rotatably arranged and the rotation axis coincides with the rotation axis of the main gear, so that when the synchronous adjustment bracket rotates, each synchronous gear keeps meshing with the main gear, and the synchronous adjustment bracket can be rotated until each synchronous gear is meshed with the corresponding adjustment gear, so that the main gear drives the adjustment gear through the synchronous gear.

[0082] In actual use, due to the difference in the ground height between the reference point and each measuring point, it is impossible to achieve the same horizontal height, especially in the case of measuring points that are far apart, the horizontal height of each measuring point and the reference point may be quite different. Therefore, when placing a static level at each measuring point, in addition to adjusting the verticality of the liquid storage tank, the height of each static level must also be adjusted. In this regard, the present embodiment can ensure the verticality of the liquid storage tank by adjusting each height-adjustable leg separately, and can also synchronously adjust the height of each height-adjustable leg, so that the static levels at each measuring point can be roughly at the same height, which is convenient for use.

[0083] In a specific implementation, the upper end of the height-adjustable leg is fixed to the bottom of the adjustable base, and the lower end supports the ground. The upper and lower ends of the height-adjustable leg are connected by a threaded structure, so that the lower end of the height-adjustable leg can be rotated to lift. The adjustment gear is fixed on the outer periphery of the lower end of the height-adjustable leg, and the lower end of the height-adjustable leg is driven to rotate through the adjustment gear.

[0084] The center of the bottom of the adjustable base is provided with a rotating shaft, and the main gear and the synchronous adjustment bracket are respectively rotatably arranged on the rotating shaft, so that the main gear and the synchronous adjustment bracket can rotate independently. The synchronous adjustment bracket is triangular, and the three vertices are respectively provided with synchronous gears, so that the three synchronous gears surround the main gear.

[0085] The three synchronous gears correspond to the adjustment gears of the three height-adjustable legs respectively. The three synchronous gears can be engaged or disengaged with the three adjustment gears respectively by rotating the synchronous adjustment bracket, so that the main gear can drive the three adjustment gears at the same time, or disconnect the transmission connection with the three adjustment gears.

[0086] When in use, the synchronous adjustment bracket can be rotated to make the three synchronous gears separate from the three adjusting gears respectively. At this time, the height of any height-adjustable leg can be adjusted individually, so that the liquid storage tank reaches a vertical state; after the liquid storage tank is adjusted to a vertical state, the synchronous adjustment bracket is rotated to make the three synchronous gears engage with the three adjusting gears respectively, and then the main gear is rotated to adjust the heights of the three height-adjustable legs at the same time.

[0087] See also Figure 4 and Figure 5As a specific embodiment of the static level taking the inclination angle into consideration provided in the present application, the synchronous adjustment bracket is provided with a first handle extending to the outside of the adjustable base, so as to facilitate operation from the outside of the adjustable base.

[0088] The bottom of the adjustable base is also provided with a second handle extending to the outside, which is convenient for operation from the outside of the adjustable base. The second handle is rotatably arranged and provided with a push tooth suitable for engaging with the main gear, and the push tooth is axially slidably arranged along the second handle to switch between an engaging state and a disengaging state with the main gear.

[0089] In practice, the operator can control the synchronous adjustment bracket to rotate through the first handle. The operator can also push the push teeth on the second handle so that the push teeth clamp the main gear, thereby driving the main gear through the second handle; when the push teeth are released, the second handle can be separated from the main gear, so that the second handle can be retracted, and then the push teeth are used to clamp the main gear again, and the second handle is used to drive the main gear again, so that the second handle can be used to intermittently rotate the main gear in the same direction.

[0090] See also Figure 6 The embodiment of the present application further provides a settlement monitoring method, using any of the above-mentioned static level instruments considering the inclination angle, the settlement monitoring method comprising:

[0091] Fixing a plurality of the static levels taking the inclination angle into consideration at a reference point and at least one measuring point respectively, and keeping the liquid storage tanks of the static levels taking the inclination angle into consideration vertical;

[0092] Filling liquid into the liquid storage tank of each of the static levels taking into account the inclination angle so that the liquid level reaches a predetermined height, and connecting the liquid communication holes of each of the static levels taking into account the inclination angle to each other, and connecting the air pressure balance holes to each other;

[0093] The static level considering the inclination angle located at the reference point and each measuring point detects the change value of the liquid level in the liquid storage tank through a displacement sensor, and detects the inclination value at the location through the inclination sensor of the static level considering the inclination angle;

[0094] Correcting the liquid level change value of the reference point by the inclination value of the reference point to obtain a reference value, and correcting the corresponding liquid level change value by the inclination value of each measuring point to obtain a relative settlement value of each measuring point;

[0095] The settlement value of each measuring point is obtained by subtracting the benchmark value from the relative settlement value of each measuring point.

[0096] Compared with the prior art, the settlement monitoring method of the embodiment of the present application adopts the above-mentioned static level that takes the inclination into consideration, and fully considers the error caused by the inclination of the liquid storage tank during the monitoring process, thereby greatly improving the detection accuracy.

[0097] It is worth noting that the settlement monitoring method of this embodiment is only one of the methods for using the static level considering the inclination angle in the above embodiment. After understanding the embodiment of the static level considering the inclination angle of the present application, those skilled in the art can use the static level considering the inclination angle in the above embodiment in any way within their capabilities, and are not limited to the settlement monitoring method of this embodiment.

[0098] As a specific implementation of the settlement monitoring method provided in the present application, the number of the displacement sensors is two, and they are respectively located on both sides of the liquid storage tank and at the same height position of the liquid storage tank.

[0099] The static level taking the inclination into consideration located at the reference point and each measuring point detects the change in the liquid level height in the liquid storage tank through a displacement sensor, including: the static level taking the inclination into consideration located at the reference point detects the liquid level height values ​​h1 and h2 of the liquid storage tank through two displacement sensors, and the static level taking the inclination into consideration located at the measuring point detects the liquid level height values ​​h3 and h4 of the liquid storage tank through two displacement sensors.

[0100] The detecting the inclination value of the liquid storage tank by the inclination sensor of the static level considering the inclination angle comprises: detecting the inclination value a of the measuring point by the inclination sensor of the static level considering the inclination angle.

[0101] The settlement value of each measuring point is Δh,

[0102]

[0103] In this embodiment, after placing various static levels that take into account the inclination angle at the reference point and various measuring points and adjusting the liquid storage tank to a vertical state, the test can be carried out.

[0104] In a specific implementation, the liquid level change value measured by the static level considering the inclination of the reference point and each measuring point and the inclination value of the measuring point can be sent to the collector through the 485 communication interface or the wireless network card, and the collector sends the received data to the remote terminal, and generates the time-sedimentation curve of each measuring point through software calculation. The precise geographic coordinates of the reference point and each measuring point can also be sent to the collector through the positioning module, and the collector sends the received data to the remote terminal and displays the location information of the reference point and each measuring point.

[0105] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A static level taking into account the inclination angle, characterized in that: include: Adjustable base with horizontal adjustment structure; A liquid storage tank, disposed on the adjustable base, suitable for being adjusted to a predetermined state through the horizontal adjustment structure; The liquid storage tank is provided with a liquid communication hole at the bottom and an air pressure balance hole at the top; A displacement sensor, disposed in the liquid storage tank and adapted to detect a height change value of the liquid level in the liquid storage tank; The inclination sensor is arranged in the liquid storage tank and is used to measure the inclination value of the location relative to the horizontal plane.

2. The static level taking inclination into consideration as claimed in claim 1, characterized in that: The number of the displacement sensors is two, and they are respectively located on two sides of the liquid storage tank and at the same height position of the liquid storage tank.

3. The static level taking inclination into consideration as claimed in claim 1, characterized in that: The horizontal adjustment structure comprises three height-adjustable legs, which are located at the bottom of the adjustable base and arranged in a triangle.

4. The static level taking inclination into consideration as claimed in claim 1, characterized in that: The static level taking the inclination angle into consideration further comprises a plurality of temperature sensors, and the plurality of temperature sensors respectively detect the temperatures of the liquid storage tank, the displacement sensor and the inclination angle sensor.

5. The static level taking inclination into consideration as claimed in claim 1, characterized in that: A control box is provided on the top of the liquid storage tank, in which a control circuit board and a built-in battery are installed, and the built-in battery supplies power to the circuit board, the displacement sensor and the inclination sensor; the control box is also provided with a charging port, a 485 communication interface and a wireless network card; The static level taking the inclination into consideration is also provided with a positioning module.

6. The static level taking inclination into consideration as claimed in claim 1, characterized in that: The inclination sensor is a dual-axis inclination sensor, and the displacement sensor is an ultrasonic displacement sensor.

7. The static level taking inclination into consideration as claimed in claim 1, characterized in that: The adjustment method of each height-adjustable leg is rotation adjustment, and an adjustment gear is provided on the outer periphery of each height-adjustable leg; A main gear is disposed at the bottom center of the adjustable base, and each of the adjustment gears is located around the main gear; The bottom of the adjustable base is also provided with a synchronous adjustment bracket, and the synchronous adjustment bracket is provided with synchronous gears corresponding to the adjustment gears one by one, and each of the synchronous gears is meshed with the main gear; The synchronous adjustment bracket is rotatably arranged and the rotation axis coincides with the rotation axis of the main gear, so that when the synchronous adjustment bracket rotates, each synchronous gear keeps meshing with the main gear, and the synchronous adjustment bracket can be rotated until each synchronous gear is meshed with the corresponding adjustment gear, so that the main gear drives the adjustment gear through the synchronous gear.

8. The static level taking inclination into consideration as claimed in claim 7, characterized in that: The synchronous adjustment bracket is provided with a first handle extending to the outside of the adjustable base; The bottom of the adjustable base is also provided with a second handle extending to the outside. The second handle is rotatably arranged and provided with a push tooth suitable for engaging with the main gear. The push tooth is axially slidably arranged along the second handle to switch between engaging and disengaging with the main gear.

9. A sedimentation monitoring method, characterized in that: The static level taking inclination into consideration as claimed in any one of claims 1 to 8 comprises: Fixing a plurality of the static levels taking the inclination angle into consideration at a reference point and at least one measuring point respectively, and keeping the liquid storage tanks of the static levels taking the inclination angle into consideration vertical; Filling liquid into the liquid storage tank of each of the static levels taking into account the inclination angle so that the liquid level reaches a predetermined height, and connecting the liquid communication holes of each of the static levels taking into account the inclination angle to each other, and connecting the air pressure balance holes to each other; The static level considering the inclination angle located at the reference point and each measuring point detects the change value of the liquid level in the liquid storage tank through a displacement sensor, and detects the inclination value at the location through the inclination sensor of the static level considering the inclination angle; Correcting the liquid level change value of the reference point by the inclination value of the reference point to obtain a reference value, and correcting the corresponding liquid level change value by the inclination value of each measuring point to obtain a relative settlement value of each measuring point; The settlement value of each measuring point is obtained by subtracting the benchmark value from the relative settlement value of each measuring point.

10. The method for monitoring the subsidence according to claim 9, characterized in that: The number of the displacement sensors is two, and they are respectively located on two sides of the liquid storage tank and at the same height position of the liquid storage tank; The static level considering the inclination angle located at the reference point and each measuring point detects the change value of the liquid level height in the liquid storage tank through the displacement sensor, including: the static level considering the inclination angle located at the reference point detects the liquid level height values ​​h1 and h2 of the liquid storage tank through the two displacement sensors, and the static level considering the inclination angle located at the measuring point detects the liquid level height values ​​h3 and h4 of the liquid storage tank through the two displacement sensors; The detecting the inclination value of the liquid storage tank by the inclination sensor of the static level considering the inclination angle comprises: detecting the inclination value a of the measuring point by the inclination sensor of the static level considering the inclination angle; The settlement value of each measuring point is Δh,

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