CN111765858A

CN111765858A - Displacement measuring method, displacement measuring device, inclinometer and computer storage medium

Info

Publication number: CN111765858A
Application number: CN202010561515.4A
Authority: CN
Inventors: 王祥; 周根郯; 郭建湖; 王欢; 李小和; 刘晶莹; 熊林敦; 肖凡; 王凯强
Original assignee: China Railway Siyuan Survey and Design Group Co Ltd
Current assignee: China Railway Siyuan Survey and Design Group Co Ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2020-10-13

Abstract

The invention discloses a displacement measurement method, a displacement measurement device, an inclinometer and a computer storage medium. The method comprises the following steps: aiming at each measuring position in a plurality of measuring positions of the inclinometer, acquiring two inclination angle data and two direction angle data obtained when an inclination angle sensor and a magnetic resistance sensor on the inclinometer measure along a first direction and a second direction respectively; determining the inclination length of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data; determining the direction angle of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data and two direction angle data; and determining the displacement value of the inclinometer pipe according to the inclination length and the direction angle corresponding to each section of inclinometer pipe.

Description

Displacement measuring method, displacement measuring device, inclinometer and computer storage medium

Technical Field

The invention relates to the field of geotechnical engineering measurement, in particular to a displacement measurement method, a displacement measurement device, an inclinometer and a computer storage medium.

Background

The inclinometer is a measuring device used for measuring the aspects of drilling holes, foundation pits, foundation foundations, walls and the like, and is widely applied to the building industry. When measuring displacement, the inclinometer is placed in the inclinometer pipe and is fixed with the clamping groove in the inclinometer pipe through the guide wheel of the inclinometer. When measuring displacement, the common method is to measure the included angle between the axis of the inclinometer pipe and the plumb line, and measure the displacement value of the buried soil position of the inclinometer pipe by using the measured included angle.

However, due to the influence of the manufacturing process or the influence of the installation error of the inclinometer, the orientation of the clamping groove at the pipe orifice of the inclinometer and the orientation of the clamping groove at the pipe bottom of the inclinometer may be inconsistent, so that a large error exists when the displacement value of the pipe bottom of the inclinometer is calculated according to the orientation of the clamping groove at the pipe orifice of the inclinometer, and great loss is caused to geotechnical engineering. Therefore, the measurement method of the inclinometer needs to be optimized.

Disclosure of Invention

In order to solve the related technical problems, embodiments of the present invention provide a displacement measurement method, a displacement measurement device, an inclinometer, and a computer storage medium.

The technical scheme of the embodiment of the invention is realized as follows:

the embodiment of the invention provides a displacement measurement method, which comprises the following steps:

aiming at each measuring position in a plurality of measuring positions of the inclinometer, acquiring two inclination angle data and two direction angle data obtained when an inclination angle sensor and a magnetic resistance sensor on the inclinometer measure along a first direction and a second direction respectively; the first direction and the second direction are corresponding to two groups of clamping grooves on the inner diameter of the inclinometer, and the first direction is vertical to the second direction; determining the inclination length of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data; determining the direction angle of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data and two direction angle data; wherein the first coordinate system comprises a three-dimensional coordinate system of a horizontal projection direction of a first direction and a horizontal projection direction of a second direction;

and determining the displacement value of the inclinometer pipe according to the inclination length and the direction angle corresponding to each section of inclinometer pipe.

In the above scheme, determining the inclination length of a section of inclinometer in the first coordinate system corresponding to the corresponding measurement position according to the obtained two inclination angle data includes:

determining a first inclination length corresponding to a first direction and a second inclination length corresponding to a second direction of a first reference length corresponding to the inclinometer in a first coordinate system according to the obtained two inclination angle data;

and determining the inclination length of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the first inclination length and the second inclination length.

In the above scheme, determining the direction angle of a section of inclinometer in the first coordinate system corresponding to the corresponding measurement position according to the obtained two inclination angle data and two direction angle data includes:

determining the offset angle of a section of the inclinometer corresponding to the corresponding measuring position in a first coordinate system relative to a vertical plane in which the first direction is located or a vertical plane in which the second direction is located according to the obtained two inclination angle data;

and determining the direction angle of a section of inclinometer corresponding to the corresponding measuring position in a first coordinate system according to the offset angle and the two direction angle data.

In the foregoing solution, determining, according to the obtained two inclination data, an offset angle of a section of inclinometer casing corresponding to the corresponding measurement position in the first coordinate system with respect to a vertical plane in which the first direction is located or a vertical plane in which the second direction is located includes:

determining a first projection length corresponding to a first reference length corresponding to the inclinometer in a horizontal projection direction of a first direction and a second projection length corresponding to a horizontal projection direction of a second direction in a first coordinate system according to the obtained two inclination angle data;

determining the offset angle of a section of inclinometer corresponding to the corresponding measuring position in a first coordinate system relative to a first plane according to the first projection length and the second projection length; the first plane is a vertical plane in which the first direction is located or a vertical plane in which the second direction is located.

In the foregoing solution, determining, according to the offset angle and the two direction angle data, a direction angle of a section of inclinometer in a first coordinate system, corresponding to the corresponding measurement position, includes:

and obtaining the direction angle of a section of the inclinometer corresponding to the corresponding measuring position in the first coordinate system according to the offset angle and one of the two direction angles.

In the above scheme, determining the displacement value of the inclinometer according to the inclination length and the direction angle corresponding to each section of inclinometer includes:

determining a displacement curve of each inclinometer pipe according to the corresponding inclination length and direction angle of each inclinometer pipe;

and determining the displacement value of the inclinometer pipe according to the displacement curve of the inclinometer pipe.

In the above solution, the determining the displacement value of the inclinometer according to the displacement curve of the inclinometer includes:

and projecting the displacement curve of the inclinometer along a set direction to obtain the displacement value of the inclinometer.

An embodiment of the present invention further provides a displacement measurement apparatus, including:

the first measurement module is used for acquiring two inclination angle data and two direction angle data which are obtained when an inclination angle sensor and a magnetic resistance sensor on an inclinometer measure along a first direction and a second direction respectively aiming at each measurement position in a plurality of measurement positions of an inclinometer; the first direction and the second direction are corresponding to two groups of clamping grooves on the inner diameter of the inclinometer, and the first direction is vertical to the second direction; determining the inclination length of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data; determining the direction angle of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data and two direction angle data; wherein the first coordinate system comprises a three-dimensional coordinate system of a horizontal projection direction of a first direction and a horizontal projection direction of a second direction;

and the second measuring module is used for determining the displacement value of the inclinometer pipe according to the inclination length and the direction angle corresponding to each section of the inclinometer pipe.

An embodiment of the present invention further provides an inclinometer, including: a processor and a memory for storing a computer program capable of running on the processor; wherein the content of the first and second substances,

the processor is adapted to perform the steps of any of the above methods when running the computer program.

An embodiment of the present invention further provides a computer storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program executes the steps of any one of the above methods.

According to the displacement measurement method, the displacement measurement device, the inclinometer and the computer storage medium, provided by the embodiment of the invention, aiming at each measurement position in a plurality of measurement positions of the inclinometer, two inclination angle data and two direction angle data are obtained when an inclination angle sensor and a magnetic resistance sensor on the inclinometer respectively measure along a first direction and a second direction; the first direction and the second direction are corresponding to two groups of clamping grooves on the inner diameter of the inclinometer, and the first direction is vertical to the second direction; determining the inclination length of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data; determining the direction angle of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data and two direction angle data; wherein the first coordinate system comprises a three-dimensional coordinate system of a horizontal projection direction of a first direction and a horizontal projection direction of a second direction; and determining the displacement value of the inclinometer pipe according to the inclination length and the direction angle corresponding to each section of inclinometer pipe. According to the scheme of the embodiment of the invention, the inclination length and the direction angle of each section of inclinometer can be determined according to two inclination angle data and two direction angle data measured by the inclination angle sensor and the magnetic resistance sensor on the inclinometer, and the inclination length and the direction angle of each section of inclinometer can reflect the inclination position and the actual inclination condition of each section of inclinometer in a soil layer.

Drawings

FIG. 1 is a schematic view of a related art inclinometer;

FIG. 2 is a schematic diagram of the displacement variation of the inclinometer at a plurality of measurement positions;

FIG. 3 is a schematic diagram illustrating a method of inclinometer measurement according to the related art;

FIG. 4 is a partial schematic view of a inclinometer tube in the related art;

FIG. 5 is a schematic cross-sectional view of an inner diameter of a inclinometer pipe in the related art;

FIG. 6 is a schematic flow chart of a displacement measurement method according to an embodiment of the present invention;

FIG. 7 is a schematic diagram of a displacement measurement method according to an embodiment of the present invention;

fig. 8 is a schematic structural view of an inclinometer according to an embodiment of the invention.

FIG. 9 is a schematic block diagram of an inclinometer according to an embodiment of the invention.

FIG. 10 is a schematic diagram of an embodiment of a magnetoresistive sensor according to the present invention.

Fig. 11 is a schematic structural diagram of a displacement measuring device according to an embodiment of the present invention.

Fig. 12 is a schematic diagram of a hardware structure of an inclinometer according to an embodiment of the invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

In the field of geotechnical engineering, an inclinometer is applied to deep displacement monitoring of geotechnical engineering such as foundation pits, landslides, dam bodies, foundation foundations and the like. The inclinometer is an in-situ monitoring instrument for determining horizontal displacement by measuring the inclination angle of a drill hole. As shown in fig. 1, the portable inclinometer used conventionally is provided with an inclination sensor on the main body, guide wheels are arranged on two sides of the main body, and the guide wheels are arranged in clamping grooves of an inclinometer pipe so as to place the inclinometer into different measurement positions in the inclinometer pipe. Usually, the inclinometer is provided with two groups of guide wheels so as to be fixed on the clamping groove and not fall off from the clamping groove in the measurement process; the inclinometer is also provided with a cable, measured data can be transmitted to a receiving instrument through the cable, and the receiving instrument receives and displays the received data.

In the soil displacement monitoring process, a plurality of sections of inclinometers can be connected in advance in sequence and embedded into different depth positions of a soil layer, displacement can occur inside the soil layer along with the lapse of time, correspondingly, the inclinometers at different depth positions of the soil layer can also move correspondingly, and the axes of the inclinometers formed by connecting the plurality of sections of inclinometers in sequence can also tilt correspondingly. As shown in FIG. 2, each curve in the graph represents the displacement change of the inclinometer relative to the initial state on a certain day, and each point on each curve represents a measurement position on the inclinometer, and as can be seen from FIG. 2, the displacement value of the inclinometer becomes larger as the depth deepens and the time goes on.

In the related art, the displacement measurement method includes that two groups of guide wheels of the inclinometer are arranged in clamping grooves of an inclinometer tube, the guide wheels can move along the clamping grooves, the inclinometer can be placed at different measurement positions in the inclinometer tube through the movement of the guide wheels, the distance between the two groups of guide wheels of the inclinometer is l, the measurement length corresponding to one measurement position can be understood, and l can be set to be 0.5m during actual measurement. An inclination angle sensor is arranged in the inclinometerThe angle sensor measures the included angle theta between the axis of one section of inclinometer pipe corresponding to each section of measurement length and plumb line_iAs shown in fig. 3, the length value l and the inclination angle theta are determined according to the length of each segment_iCalculating the horizontal displacement value l.sin theta of a section of inclinometer corresponding to each section of measurement length_iThen, the formula ∑ l sin theta is used_iAnd calculating the total displacement value of the inclinometer.

In the displacement measurement process, two groups of guide grooves (i.e. clamping grooves) which are 90 degrees away from each other are arranged on the inner diameter of the inclinometer, referring to fig. 4 and 5, a clamping groove (cross shape) is arranged at the positions A + and A-in fig. 5, a clamping groove (cross shape) is arranged at the positions B + and B-, and a guide wheel of the inclinometer is placed at different measurement positions in the inclinometer along the clamping grooves (such as the clamping grooves at the positions A + and A-or the clamping grooves at the positions B + and B-in fig. 5) of the inclinometer to perform measurement. When the inclinometer is used for measurement, the fixed position is kept for measurement by fixing the cross-shaped clamping groove of the inclinometer pipe, so that the clamping groove position of the inclinometer pipe is the measurement position of the inclinometer. In addition, in the actual measurement process, the positions of the clamping grooves at the pipe orifices of the section of the inclinometer close to the ground are usually adopted as the measurement positions of all the inclinometers for calculation, but in the actual measurement process, the positions of the clamping grooves of each section of the inclinometer corresponding to different deep parts are not consistent, so that the positions of the clamping grooves at the pipe orifices of the section of the inclinometer close to the ground cannot be used as the measurement positions of the section of the inclinometer located in a deeper position. Therefore, the conventional measurement method has the following disadvantages:

(1) when a plurality of sections of inclinometers are installed, the serious unreal and uncertain measurement results can be caused by unqualified installation quality of the inclinometers, and if the inclinometers are installed, the clamping grooves of two sections of inclinometers are not aligned, so that the two sections of inclinometers have torsion angles, and further the data analysis is seriously influenced, for example, the measurement results have huge uncertainty, the misjudgment is easy to cause, and the great loss is caused to geotechnical engineering;

(2) the traditional inclinometer is mostly suitable for the condition of shallow embedding depth. Generally, when the embedding depth exceeds 10m, a measurement result will generate a large error, and the error is accumulated continuously along with the increase of the depth;

(3) the accuracy of the measurement is not stable. The inclinometer is positioned at a deep part, does not measure according to an assumed direction, but randomly swings in a certain range, so that a serious error is caused to a measurement result, and the measurement precision is influenced.

In summary, through analysis, the traditional measurement method cannot measure the deep displacement, and the error generated by measuring the deep displacement mainly comes from the following aspects:

(1) in engineering application, the quality of the inclinometer pipe is often found to be not satisfactory, so that under the influence of materials and a manufacturing process, the torsion angle of the inclinometer pipe is large, and the position of a clamping groove of the inclinometer pipe corresponding to a deep part and the position of a clamping groove of the inclinometer pipe corresponding to a shallow part have large errors, so that a measurement conclusion is not true, and particularly, the measurement is obvious when the inclinometer pipe is buried deeply;

(2) the design and installation of the inclinometer pipes generally adopt 2m sections which are spliced in sections, and at the splicing joint, because the clamping grooves of two adjacent sections of the inclinometer pipes are not aligned, a larger torsion angle is easy to appear between the two adjacent sections of the inclinometer pipes;

(3) the material of the inclinometer pipe commonly used in the geotechnical engineering field is mostly polyvinyl chloride (PVC), easy wearing and tearing, and at the in-process of long-term (even several years) monitoring, the guide pulley reciprocates in the draw-in groove, leads to the draw-in groove wearing and tearing to make the draw-in groove hardly play the effect of fixed guide pulley in order to restrain the measurement position.

Based on the above, in various embodiments of the present invention, the inclination length and the direction angle of each section of inclinometer are determined according to two inclination angle data and two direction angle data measured by the inclination angle sensor and the magnetic resistance sensor on the inclinometer, and the inclination length and the direction angle of each section of inclinometer can reflect the inclination position and the actual inclination condition of each section of inclinometer in the soil layer, so that the actual displacement value of each section of inclinometer in a certain direction in the soil layer can be determined through the inclination length and the direction angle of each section of inclinometer, thus the displacement measurement of the inclinometer is more accurate.

An embodiment of the present invention provides a displacement measurement method, as shown in fig. 6, the method includes:

step 601: aiming at each measuring position in a plurality of measuring positions of the inclinometer, acquiring two inclination angle data and two direction angle data obtained when an inclination angle sensor and a magnetic resistance sensor on the inclinometer measure along a first direction and a second direction respectively; the first direction and the second direction are corresponding to two groups of clamping grooves on the inner diameter of the inclinometer, and the first direction is vertical to the second direction; determining the inclination length of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data; determining the direction angle of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data and two direction angle data; wherein the first coordinate system comprises a three-dimensional coordinate system of a horizontal projection direction of a first direction and a horizontal projection direction of a second direction;

step 602: and determining the displacement value of the inclinometer pipe according to the inclination length and the direction angle corresponding to each section of inclinometer pipe.

In practical application, a plurality of sections of inclinometer pipes are buried in a soil layer, and each section of inclinometer pipe is connected in sequence. Wherein a section of inclinometer may contain a plurality of measurement locations. The inclinometer measures the inclination of each measurement location. When the inclinometer measures at each measuring position, a first reference length is corresponding to the inclinometer, and the first reference length is the length of a section of inclinometer pipe corresponding to each measuring position. For example, 10 sections of inclinometer pipes are connected in sequence, the length of each section of inclinometer pipe is 4 meters, the length of 10 sections of inclinometer pipes is 40 meters, and when an inclinometer measures at each measuring position, the corresponding first reference length is 0.5 meters, and each section of inclinometer pipe comprises 8 measuring positions. The 10-section inclinometer comprises 80 measurement positions, and the length of a section of inclinometer corresponding to each measurement position is 0.5 m. Typically, a section of inclinometer is on the market 2.5 to 4 meters in length, with the corresponding first reference length of the inclinometer being 0.5 to 1 meter.

In practical application, the inclinometer is provided with an inclination angle sensor and a magnetic resistance sensor, wherein inclination angle data measured by the inclination angle sensor refers to an included angle between the inclination direction of the inclinometer and the plumb line direction when the inclinometer is placed in a corresponding measurement position in the inclinometer along the clamp groove of the inclinometer; the direction angle data measured by the magnetoresistive sensor means the included angle between the inclination direction of the inclinometer and the due north direction when the inclinometer is placed in the corresponding measuring position of the inclinometer along the clamp groove of the inclinometer.

During practical application, the inclinometer is provided with two groups of clamping grooves, so that when the measuring instrument measures the inclination direction of the corresponding measuring position of the inclinometer, the two groups of clamping grooves of the inclinometer can be used for measuring respectively to obtain two inclination angle data and two direction angle data.

As shown in fig. 4 and 5, the first direction and the second direction are directions corresponding to two sets of slots on the inner diameter of the inclinometer, and it can be understood that two sets of slots are arranged on the inner wall of the inclinometer along the first direction and the second direction.

In practical application, the directions corresponding to the two groups of clamping grooves on the inner diameter of the inclinometer are mutually vertical, so that when the inclinometer measures along the two groups of clamping grooves of the inclinometer, planes of two inclined directions measured by the inclinometer are mutually vertical. Based on the above, a three-dimensional coordinate system is established, wherein the three-dimensional coordinate system comprises a three-dimensional coordinate system formed by horizontal projection directions of the directions corresponding to the two sets of card slots (namely, the three-dimensional coordinate system comprises the horizontal projection direction of the first direction and the horizontal projection direction of the second direction).

Specifically, see FIG. 7, OA_i、OA_jWhen the inclinometer is placed to a corresponding measuring position along two groups of clamping grooves of the inclinometer tube for measurement, the inclinometer measures two inclined directions, wherein the measurement direction i and the measurement direction j are horizontal projection directions of the two inclined directions, the depth direction H is the measurement direction i, and the measurement direction j is the vertical direction of a horizontal plane. Thus, the three-dimensional coordinate system is a three-dimensional coordinate system composed of the i measurement direction, the j measurement direction, and the H depth direction.

In an embodiment, the determining, according to the obtained two inclination angle data, an inclination length of a section of inclinometer in the first coordinate system corresponding to the corresponding measurement position includes:

determining a first inclination length corresponding to a first reference length corresponding to the inclinometer in a first direction and a second inclination length corresponding to a second direction in a first coordinate system according to the obtained two inclination angle data;

Specifically, referring to FIG. 7, the angle ∠ HOA_i、∠HOA_jTwo inclination angle data measured by the inclinometer at one measuring position of the inclinometer, wherein l is a first reference length corresponding to the inclinometer and is according to an angle ∠ HOA_i、∠HOA_jAnd l can determine the line segment OA in the first coordinate system_i、OA_jLength of (a), line segment OA_i、OA_jThe length of the first reference length is a first inclination length corresponding to a first direction and a second inclination length corresponding to a second direction of a first reference length corresponding to the inclinometer in a first coordinate system; according to line segment OA_i、OA_jLength and angle ∠ HOA of_i、∠HOA_jThe inclination length of the line segment OA is determined by using the geometric principle, wherein the line segment OA is the inclination length of a section of the inclinometer corresponding to the corresponding measurement position in the first coordinate system, that is, the inclination length of the section of the inclinometer.

In practical application, according to a first inclination length corresponding to the first direction of the inclinometer and a second inclination length corresponding to the second direction, the projection length of the inclination length of the section of inclinometer on the horizontal plane and the inclination angle of the section of inclinometer are determined, and then the inclination length of the section of inclinometer in a coordinate system is determined according to the projection length of the inclination length of the section of inclinometer on the horizontal plane and the inclination angle of the section of inclinometer. I.e. according to line segment OA in fig. 7_i、OA_jLength and angle ∠ HOA of_i、∠HOA_jDetermines the length of the line segment OB and the angle value of the angle ∠ AOB, and determines the tilt length of the line segment OA according to the length of the line segment OB and the angle value of the angle ∠ AOB, wherein the line segment OB is the projection length of the tilt length of the inclinometer on the horizontal plane, and ∠ AOB is the tilt angle of the inclinometer.

Specifically, the length of the line segment OB (i.e., the projection value of the inclination length of a section of inclinometer corresponding to the measurement position on the horizontal plane) can be calculated by using the following formula:

L＝[(l×cosθ_i)²+(l×cosθ_j)²]^0.5(1)

wherein L is the inclined length of the inclinometer pipeThe projection value of the degree on the horizontal plane; l is a first reference length corresponding to the inclinometer; theta_i、θ_jTwo tilt angle data measured for the inclinometer.

The angle value of the angle AOB (i.e. the inclination angle of a section of inclinometer corresponding to the measurement position) can be calculated by using the following formula:

wherein theta is the inclination angle of the inclinometer pipe; theta_i、θ_jTwo tilt angle data measured for the inclinometer.

According to the length of L in formula (1) and the angle value of θ in formula (2), the inclination length of a section of the inclinometer in the first coordinate system, i.e. the length of the line segment OA, corresponding to the corresponding measurement position can be determined.

In an embodiment, the determining, according to the obtained two inclination angle data and two direction angle data, a direction angle of a section of the inclinometer in the first coordinate system corresponding to the corresponding measurement position includes:

Specifically, referring to FIG. 7, the angle ∠ HOA_i、∠HOA_jFor two inclinations of the inclinometer, measured at one measuring position of the inclinometer, angle ∠ B_iON、∠B_jAnd ON are two direction angles measured by the inclinometer at one measuring position of the inclinometer.

Here, the two tilt angles ∠ HOA are obtained_i、∠HOA_jDetermining a first reference length l corresponding to the inclinometer, and determining a first projection length l × cos theta corresponding to the horizontal projection direction of the first reference length corresponding to the inclinometer in the first direction in a first coordinate system_iAnd a second partySecond projection length l × cos θ corresponding to horizontal projection direction_jAccording to a first projection length l × cos theta_iAnd a second projected length l × cos θ_jDetermining ∠ BOB of the offset angle of the corresponding inclinometer section in the first coordinate system relative to the vertical plane of the first direction_i(or ∠ AOA_i) Or the offset angle ∠ BOB relative to the vertical plane of the second direction_j(or ∠ AOA_j)。

Wherein the offset angle is ∠ BOB_i(or ∠ AOA_i) Can be calculated using the following formula:

wherein, β_iThe offset angle theta of a section of inclinometer corresponding to the corresponding measurement position in a first coordinate system relative to a vertical plane where the first direction is located_i、θ_jTwo tilt angle data measured for the inclinometer.

Offset angle ∠ BOB_j(or ∠ AOA_j) Can be calculated using the following formula:

wherein, β_jThe offset angle theta of a section of the inclinometer corresponding to the corresponding measurement position in the first coordinate system relative to the vertical plane in which the second direction is located_i、θ_jTwo tilt angle data measured for the inclinometer.

In an embodiment, the determining, according to the offset angle and the two direction angle data, a direction angle of a section of the inclinometer in the first coordinate system corresponding to the corresponding measurement position includes:

In practical application, referring to fig. 7, the N direction is a north direction of the horizontal plane in the first coordinate systemAngle ∠ BOB_i(or ∠ AOA_i) The angle of deviation of a section of inclinometer in a first coordinate system relative to a vertical plane in which a first direction is located, the angle being ∠ BOB, measured by the inclinometer at the corresponding measurement position_j(or ∠ AOA_j) The angle of deviation of a section of inclinometer in a first coordinate system relative to a vertical plane in which a second direction is located, angle ∠ B, measured by the inclinometer at the corresponding measurement position_iON、∠B_jON is two direction angle data measured along two clamping groove directions of the inclinometer at one measuring position of the inclinometer according to the angle ∠ BOB_i(or ∠ AOA_i)、∠BOB_j(or ∠ AOA_j)、∠B_iON、∠B_jAngle value of ON, angle value of ∠ BON is determined.

Specifically, ∠ B_iAngle value of ON minus ∠ BOB_i(or ∠ AOA_i) The angle value of (3) is obtained, and the angle value of the direction angle ∠ BON of a section of inclinometer corresponding to the corresponding measuring position in the first coordinate system is obtained, or ∠ B_iAngle value of ON plus ∠ BOB_j(or ∠ AOA_j) Subtracting 90 degrees from the angle value to obtain the angle value of the direction angle ∠ BON of the section of inclinometer in the first coordinate system corresponding to the corresponding measurement position, or ∠ B_jAngle value of ON plus 90 minus ∠ BOB_i(or ∠ AOA_i) The angle value of (3) is obtained, and the angle value of the direction angle ∠ BON of a section of inclinometer corresponding to the corresponding measuring position in the first coordinate system is obtained, or ∠ B_jAngle value of ON plus ∠ BOB_j(or ∠ AOA_j) The angle value of ∠ BON in the first coordinate system of the section of inclinometer corresponding to the corresponding measurement position is obtained.

Specifically, the angle value of angle BON can be calculated by using the following formula:

wherein β is the direction angle of a section of inclinometer in a first coordinate system corresponding to the corresponding measurement position, theta_i、θ_jTwo tilt angle data measured for inclinometers, α_iIs an inclinometer onAnd a direction angle data measured in a first direction at the corresponding measuring position.

In an embodiment, the determining a displacement value of the inclinometer according to the inclination length and the direction angle corresponding to each section of the inclinometer includes:

In practical application, each section of the inclinometer pipe corresponds to one inclination length and one direction angle, and the inclination lengths and the direction angles of each section of the inclinometer pipe are sequentially connected to form a three-dimensional solid curve. The three-dimensional curve can reflect the inclination condition of the plurality of sections of the inclinometer pipes in the soil layer, so that the displacement value of the inclinometer pipes along the set direction can be determined by utilizing the three-dimensional curve.

In practical application, the set direction can be any direction as required, such as the direction of the selected landslide.

In one embodiment, the determining the displacement value of the inclinometer according to the displacement curve of the inclinometer includes:

In practical application, the displacement curve is projected along a certain set direction of a horizontal plane to obtain the projection length of each section of the inclinometer in the direction, and the displacement value of each measurement position of the inclinometer is determined according to the projection length of each section of the inclinometer in the direction.

Wherein, the projection length of each section of inclinometer in the direction can be calculated by using the following formula:

wherein, P is the projection length of a section of inclinometer corresponding to the corresponding measurement position in the set direction, and theta_i、θ_jTwo tilt angle data measured for the inclinometer, l being the first reference length corresponding to the inclinometer, β_aβ being phases for setting the azimuth of directionThe azimuth angle of a section of inclinometer pipe corresponding to the position should be measured.

The displacement value of a section of inclinometer corresponding to each measurement position can be calculated by using the following formula:

wherein, P_HFor the value of the displacement, theta, of the H-th measuring position of the inclinometer_i、θ_jTwo inclination data measured for the inclinometer at each measurement position, l being the first reference length for the inclinometer, β_aTo set the azimuth of the direction, β is the azimuth of a section of the inclinometer corresponding to each measurement location.

According to the displacement measurement method provided by the embodiment of the invention, aiming at each measurement position in a plurality of measurement positions of an inclinometer, two inclination angle data and two direction angle data obtained when an inclination angle sensor and a magnetic resistance sensor on an inclinometer respectively measure along a first direction and a second direction are obtained; the first direction and the second direction are corresponding to two groups of clamping grooves on the inner diameter of the inclinometer, and the first direction is vertical to the second direction; determining the inclination length of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data; determining the direction angle of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data and two direction angle data; wherein the first coordinate system comprises a three-dimensional coordinate system of a horizontal projection direction of a first direction and a horizontal projection direction of a second direction; and determining the displacement value of the inclinometer pipe according to the inclination length and the direction angle corresponding to each section of inclinometer pipe. According to the scheme of the embodiment of the invention, the inclination length and the direction angle of each section of inclinometer can be determined according to two inclination angle data and two direction angle data measured by the inclination angle sensor and the magnetic resistance sensor on the inclinometer, and the inclination length and the direction angle of each section of inclinometer can reflect the inclination position and the actual inclination condition of each section of inclinometer in a soil layer.

The present invention will be described in further detail with reference to the following application examples.

The inclinometer in the embodiment of the application is a portable deep inclinometer capable of measuring an azimuth angle, and the inclinometer has the functions of monitoring and recording the current measurement azimuth in real time. Specifically, referring to fig. 8, guide wheels are installed on two sides of the inclinometer body and arranged in a clamping groove of the inclinometer so as to place the inclinometer at different measurement positions in the inclinometer; an inclination angle sensor is arranged on an inclinometer body and is used for measuring an included angle between the inclination direction of a measuring instrument and the direction of a plumb line, a magnetoresistive sensor is integrated on the inclination angle sensor, a three-dimensional magnetoresistive sensor (see figure 10) is adopted in the embodiment of the application, an electronic compass (namely the three-dimensional magnetoresistive sensor) in the inclinometer measures an azimuth angle (the azimuth angle generally refers to a plane azimuth angle, in geography and geology, the north-positive direction is defined to be 0 degrees, the electronic compass rotates clockwise from small to large, the east-positive direction is 90 degrees, the south-positive direction is 180 degrees, the west-positive direction is 270 degrees, and finally the electronic compass returns to the north-positive direction by 360 degrees), and the current azimuth angle is displayed and recorded through a cable and a receiving instrument (namely an MCU microprocessor and a display module. The measured azimuth angle is subjected to spatial three-dimensional conversion, the three-dimensional spatial displacement of the rock-soil body can be analyzed, the measurement precision is greatly improved, and reliable in-situ monitoring data are provided for the rock-soil industry (including foundation pits, landslides, dam bodies, foundation foundations and the like).

As previously mentioned, according to conventional methods, only one of the two card slot directions need be measured, via the formula ∑ l sin θ_iThe projection form of the inclinometer in the deep part along the direction can be obtained, the inclinometer is placed into the inclinometer twice in sequence along the directions of the two clamping grooves of the inclinometer to be measured, the forms measured twice in sequence are compared, and the displacement variation of the inclinometer along the direction can be obtained, as shown in figure 2, each curve represents the displacement variation condition of the inclinometer relative to the initial state on a certain day, and the displacement of the inclinometer is seen to be continuously increased along with the time variation.

The traditional measuring method is that the clamping groove always faces one direction and cannot be twisted when the inclinometer pipe is supposed to move from top to bottom, but the practical situation is that due to the influence of the manufacturing process or the installation process, two adjacent sections of inclinometer pipes can generate a torsion angle during actual measurement, and the clamping groove direction of each section of inclinometer pipe does not always face one direction, so that the measured displacement value has an error according to the traditional measuring method. Therefore, the present application embodiment proposes a displacement measurement method that performs three-dimensional conversion based on a measured direction angle. The basis of three-dimensional conversion is to know which azimuth displacement is measured during each measurement, and thus, the displacement value is accurately calculated.

The application embodiment is mainly described from the following 3 aspects:

(1) the position of an electronic compass (i.e., a magnetoresistive sensor);

(2) transmission and recording of analog signals;

(3) and (5) processing data of the inclinometer.

The embodiment of the application provides a portable deep inclinometer (equivalent to the inclinometer in fig. 6) capable of measuring an azimuth angle, which combines the functions of the traditional inclinometer and can compensate the measurement errors caused by the quality (uncertainty caused by materials and manufacturing processes), installation errors and loss of an inclinometer pipe, so that the measurement result has higher reliability.

The technical scheme adopted by the embodiment of the invention is as follows: a gyroscope (namely a magnetic resistance sensor) is additionally arranged on a traditional inclinometer, the azimuth angle of the inclinometer is measured in real time by using the magnetic resistance sensor, data is synchronously recorded, and measurement errors are compensated through data analysis.

Referring to fig. 9, the present device comprises 3 parts:

(1) sensor module (three-dimensional magnetoresistive sensor and inclination sensor)

In the related art, the inclinometer has only an inclination sensor, and can measure the inclination or angle of an object based on gravity. The embodiment of the invention integrates (or attaches) the high-precision three-dimensional magneto-resistive sensor on the tilt sensor.

The three-dimensional magnetoresistive sensor adopts three mutually perpendicular magnetoresistive sensors, each axial sensor detects the intensity of the geomagnetic field in the direction (the geomagnetic field is in the positive north-south direction, the geographic and geological industries position the geomagnetic field 0 degrees along the north direction, and as mentioned above, the plane azimuth angle between the current sensor and the geomagnetic field is monitored), and the generated analog output signals are amplified and then sent to a Micro Control Unit (MCU) for processing.

The three-dimensional magnetoresistive sensor can be miniaturized, is integrated on a sensitive component (such as an inclination angle sensor) of a traditional inclinometer, and has little influence on the size of the traditional inclinometer.

(2) MCU module

The MCU processes the three-dimensional magnetoresistive sensor signals and the inclination angle signals, specifically, the three-dimensional magnetoresistive signals and the inclination angle signals at different depths are subjected to space three-dimensional conversion, so that the displacement of the deep part of the rock-soil body in a three-dimensional space and the displacement along a selected direction can be obtained, the selected direction can be any direction (such as the most dangerous sliding direction of a selected landslide), and the processed data are output to a receiving instrument for displaying, recording and storing in real time through a cable.

(3) Display and record module (i.e. signal transmission, display and storage module)

The module mainly realizes transmission of various signals, data display and real-time recording and storage.

The device adopts a miniaturized integrated element (such as a three-dimensional magneto-resistive sensor) with low energy consumption and high precision, and the axial directions of certain parts (such as a vertical probe in the three-dimensional magneto-resistive sensor) of the device are arranged at a sensitive part (such as an inclination angle sensor) of an inclinometer, so that the concentration of key sensing parts (such as the three-dimensional magneto-resistive sensor and the inclination angle sensor) of the device is ensured.

The application embodiment carries out spatial three-dimensional conversion on the measured azimuth angle, thereby analyzing the three-dimensional spatial displacement of the rock and soil body. The three-dimensional conversion process can be divided into the following three steps:

(1) first, as shown in fig. 7, fig. 7 represents only the azimuth conversion at a single measurement (i.e. the azimuth conversion at a measurement position), for example, assuming that this is a measurement situation of-10 m to-11 m, the O point is-11 m deep, and-10 m to-11 m is a measurement node. At the moment, the actual shape of the inclinometer pipeThe state being shown by line OA, but the line being unknown, the inclinometer measuring the i-azimuth and j-azimuth configuration, e.g. line OA_i、OA_jAs shown. Suppose line segment OA_i、OA_jThe displacement (namely the inclination length) of the inclinometer along the i and j measuring directions (two clamping groove directions) is measured, the line segment OA (unknown) is the real displacement (namely the inclination length) of the inclinometer, the line segment OB is the horizontal projection (namely the horizontal projection length of the inclination length) of the real displacement of the inclinometer, and the azimuth angles of the line segment OA and the line segment OB are the same. Line segment OA_i、OA_jThe horizontal projection of the displacement shown is measurable, l × cos θ respectively_iAnd l × cos θ_j(Angle θ)_iMeasuring the actual measured inclination angle, angle theta for inclinometer i_jMeasure the measured tilt angle in the direction for inclinometer j), the horizontal projection of the true displacement of the inclinometer is [ (l × cos θ:)_i)²+(l×cosθ_j)²]^0.5The line segment OB forms an angle with the direction i

True displacement inclination angle (∠ AOB) of inclinometer pipe is

This scaling does not require the use of azimuth angles provided by the magnetoresistive sensors.

Here, the true displacement of the inclinometer can be understood as the inclination length of a section of the inclinometer corresponding to the corresponding measurement position in the inclination direction in the first coordinate system.

(2) Then, the inclination length (length of line segment OA) of each inclinometer is obtained, and the size of the inclination length (length of line segment OB) of the known inclinometer and the included angle between the real displacement of the inclinometer and the measurement direction i (∠ BOB) are known_iIs composed of

) Here, the i-direction azimuth provided in conjunction with the magnetoresistive sensor is α_iThe azimuth angle of the real displacement (line OA or line OB) of the inclinometer can be obtained as

By this step, the azimuth angle of the inclination length of the inclinometer is known

And the angle of inclination

However, the displacement of a certain depth measurement position in the rock-soil body is only considered, the whole depth range of the inclinometer is considered to be analyzed according to the displacement, and the real displacement behavior of the inclinometer can be obtained, because α at different depths_iDifferent, inclined length orientation

Also different, the displacement curve obtained finally should be a three-dimensional curve.

(3) In geotechnical engineering analysis, the displacement of the geotechnical body towards a certain direction is only concerned, namely the displacement along a specific β direction, and the horizontal displacement (the length of a line segment OB) of the geotechnical body at different measurement depths is multiplied by cos (β - β)_i) Namely obtaining the displacement of the measuring point along the direction β as

The displacement accumulation is carried out along the depth range of the whole inclinometer pipe, and the obtained displacement of the rock and soil mass towards β along the different depths of the inclinometer pipe is

It should be noted that the inclinometer measures the form of the current inclinometer, and the displacement change of the current inclinometer, which is generated in comparison with the initial state, can be obtained by subtracting the current form from the initial form. The spatial three-dimensional conversions described in this example are all displacement values, i.e. the initial inclinometer pipe state has been considered subtracted.

The application embodiment provides a portable deep inclinometer (equivalent to an inclinometer in fig. 6) capable of measuring an azimuth angle, and the purpose that when the measurement azimuth of the inclinometer is changed due to the fact that a material, a manufacturing process, installation errors and abrasion of an inclinometer pipe is achieved, an accurate and reliable measurement result can be provided. The method mainly comprises the following characteristics:

(1) the device combines the functions of the traditional inclinometer, has mature technology, is convenient to carry, and is safe and reliable;

(2) the device is used for measuring the current azimuth angle of the inclinometer in real time, and performing spatial three-dimensional conversion on the measured azimuth angle, so that the deep space displacement in the most unfavorable direction of the rock-soil mass can be analyzed, the measurement precision is greatly improved, and the misjudgment probability of rock-soil analysis is reduced;

(3) whether the installation of the inclinometer pipe is standard or not can be checked;

(4) the measurement precision and the reliable measurement depth are improved while the measurement difficulty and the complexity are not increased;

(5) at present, the electronic compass can be miniaturized, and has the advantages of low energy consumption, high precision, good shock resistance and shaking resistance, low manufacturing cost and small influence on the production cost of the device.

(6) The miniaturization of the three-dimensional magnetoresistive sensor enables the size of the novel inclinometer device and the size of the traditional inclinometer device to be basically unchanged, and the novel inclinometer device is compatible with a traditional inclinometer tube and has better replaceability.

In order to make the objects, technical solutions and advantages of the present implementation method more clear, the following detailed description will be made on specific implementation processes of the present implementation method.

(1) Installation of the inclinometer: the durable inclinometer pipe with a better manufacturing process is selected, and the clamping grooves of all sections of inclinometer pipes are aligned to the greatest extent during installation. Usually, the inclinometer pipe is 150-200 mm higher than the ground, and the top and the bottom are sealed by covers, so that mortar, slurry and sundries are prevented from entering the hole.

(2) Measuring the initial state of the inclinometer: and (4) installing an inclinometer along the clamp groove of the inclinometer, measuring the initial state of the inclinometer twice, and performing the same measurement method as the measurement method in the step (3).

(3) Measurement: the inclinometer is installed along the clamp groove of the inclinometer, a measuring azimuth angle (such as the most dangerous sliding direction of a landslide) is preset in the MCU and the display module, the inclinometer is allowed to stand for enough time at each measuring depth from the bottom of the inclinometer, the measuring reading is read and stored after the reading of the display instrument is stable, and the displacement data of each measuring depth is measured and recorded sequentially from the bottom of a hole to the ground surface.

The measurement is carried out in parallel twice, and an inclinometer is respectively installed twice along the mutually right-angled inclinometer clamping grooves.

(4) And (3) comparing (subtracting) the measured data in the step (3) with the measured data in the step (2), namely, obtaining the data change generated by the rock-soil body displacement.

And determining the displacement condition of the rock-soil body in the three-dimensional space through three-dimensional space conversion, wherein the step can be automatically processed and completed by the MCU module.

① the true relative displacement of a certain point is [ (l × cos theta)_i)²+(l×cosθ_j)²]^0.5In a direction of relative displacement of

② the relative displacement of a certain point (β azimuth) is [ (l × cos theta ]_i)²+(l×cosθ_j)²]^0.5cos(β-β_i)；

③ calculate the relative displacement at a certain depth H (β azimuth) as

As can be seen from the above description, the displacement measurement method provided by the embodiment of the present invention determines the inclination length and the direction angle of each inclinometer according to two inclination angle data and two direction angle data measured by the inclination angle sensor and the magnetoresistive sensor on the inclinometer, and the inclination length and the direction angle of each inclinometer can reflect the inclination position and the actual inclination condition of each inclinometer in the soil layer, so that the actual displacement value of each inclinometer in a certain direction in the soil layer can be determined by the inclination length and the direction angle of each inclinometer, and thus, the displacement measurement of the inclinometer is more accurate.

In order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a displacement measurement apparatus, as shown in fig. 11, a displacement measurement apparatus 1100 includes: a first measurement module 1111, a second measurement module 1112; wherein the content of the first and second substances,

the first measurement module 1111 is configured to obtain two inclination angle data and two direction angle data obtained when the inclination angle sensor and the magnetic resistance sensor on the inclinometer perform measurement in the first direction and the second direction respectively for each of a plurality of measurement positions of the inclinometer; the first direction and the second direction are corresponding to two groups of clamping grooves on the inner diameter of the inclinometer, and the first direction is vertical to the second direction; determining the inclination length of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data; determining the direction angle of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data and two direction angle data; wherein the first coordinate system comprises a three-dimensional coordinate system of a horizontal projection direction of a first direction and a horizontal projection direction of a second direction;

the second measuring module 1112 is configured to determine a displacement value of the inclinometer according to the inclination length and the direction angle corresponding to each section of the inclinometer.

In an embodiment, the first measurement module 1111 is specifically configured to:

determining the offset angle of a section of the inclinometer measured at the corresponding measuring position in a first coordinate system relative to a first plane according to the first projection length and the second projection length; the first plane is a vertical plane in which the first direction is located or a vertical plane in which the second direction is located.

In an embodiment, the second measurement module 1112 is specifically configured to:

In practical applications, the first measuring module 1111 and the second measuring module 1112 may be implemented by a processor in the displacement measuring device in combination with a communication interface.

It should be noted that: the displacement measuring device provided in the above embodiment is exemplified by only dividing the program modules when performing displacement measurement, and in practical application, the processing may be distributed to different program modules as needed, that is, the internal structure of the terminal may be divided into different program modules to complete all or part of the processing described above. In addition, the displacement measurement device and the displacement measurement method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments in detail and are not described herein again.

Based on the hardware implementation of the program module, and in order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides an inclinometer, as shown in fig. 12, where the inclinometer 1200 includes:

a communication interface 1210 capable of performing information interaction with other devices (such as network devices, terminals, and the like);

the processor 1220 is connected with the communication interface 1210 to implement information interaction with other devices, and is configured to execute the method provided by one or more of the above technical solutions when running a computer program;

a memory 1230 for storing computer programs capable of running on the processor 1220.

Specifically, the processor 1220 is configured to perform the following operations:

acquiring two inclination angle data and two direction angle data obtained when an inclination angle sensor and a magnetic resistance sensor on an inclinometer measure along a first direction and a second direction respectively aiming at each measuring position in a plurality of measuring positions of an inclinometer through the communication interface 1210; the first direction and the second direction are corresponding to two groups of clamping grooves on the inner diameter of the inclinometer, and the first direction is vertical to the second direction; determining the inclination length of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data; determining the direction angle of a section of inclinometer pipe corresponding to the corresponding measuring position in a first coordinate system according to the obtained two inclination angle data and two direction angle data; wherein the first coordinate system comprises a three-dimensional coordinate system of a horizontal projection direction of a first direction and a horizontal projection direction of a second direction;

In an embodiment, the processor 1220 is further configured to perform the following operations:

It should be noted that: the process of the processor 1220 for specifically executing the above operations is detailed in the method embodiment, and is not described here again.

Of course, in practice, the various components in inclinometer 1200 are coupled together by bus system 1240. It is understood that the bus system 1240 is used to enable communications among the components. The bus system 1240 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for the sake of clarity the various busses are labeled in figure 12 as the bus system 1240.

Memory 1230 in embodiments of the present invention is used to store various types of data to support the operation of inclinometer 1100. Examples of such data include: any computer program for operating on inclinometer 1200.

The method disclosed in the above embodiments of the present invention may be applied to the processor 1220, or implemented by the processor 1220. Processor 1220 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 1220. The Processor 1220 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. Processor 1220 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 1230, and the processor 1220 may read the information in the memory 1230, and perform the steps of the foregoing methods in conjunction with its hardware.

In an exemplary embodiment, the inclinometer 1200 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the aforementioned methods.

It is to be understood that the memory 1230 of embodiments of the present invention can be either volatile memory or nonvolatile memory, and can include both volatile and nonvolatile memory. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a flash Memory (flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM, Double Data Synchronous Random Access Memory), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), Synchronous link Dynamic Random Access Memory (SLDRAM, Synchronous Dynamic Random Access Memory), Direct Memory bus (DRmb Access Memory, Random Access Memory). The described memory for embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In an exemplary embodiment, the present invention further provides a storage medium, i.e., a computer storage medium, particularly a computer readable storage medium, for example, comprising a memory 1230 storing a computer program, which is executable by the processor 1220 of the inclinometer 1200 to perform the steps of the aforementioned method. The computer readable storage medium may be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM.

It should be noted that: "first" and "second" are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence.

In addition, the technical solutions described in the embodiments of the present invention may be arbitrarily combined without conflict.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A displacement measuring method, comprising:

2. The displacement measurement method according to claim 1, wherein determining the inclination length of a section of the inclinometer corresponding to the corresponding measurement position in the first coordinate system according to the obtained two inclination angle data comprises:

3. The displacement measurement method according to claim 1, wherein determining the direction angle of a section of the inclinometer in the first coordinate system corresponding to the corresponding measurement position according to the obtained two inclination angle data and two direction angle data comprises:

4. The displacement measurement method according to claim 3, wherein the determining, according to the obtained two inclination angle data, the offset angle of a section of the inclinometer corresponding to the corresponding measurement position in the first coordinate system relative to a vertical plane in which the first direction is located or a vertical plane in which the second direction is located includes:

5. The displacement measurement method according to claim 3, wherein the determining the direction angle of a section of the inclinometer in the first coordinate system corresponding to the corresponding measurement position according to the offset angle and the two direction angle data comprises:

6. The displacement measurement method according to claim 1, wherein the determining the displacement value of the inclinometer according to the inclination length and the direction angle corresponding to each section of the inclinometer comprises:

7. The displacement measurement method of claim 6, wherein determining the displacement value of the inclinometer according to the displacement curve of the inclinometer comprises:

8. A displacement measuring device, comprising:

9. An inclinometer, characterized by comprising: a processor and a memory for storing a computer program capable of running on the processor; wherein the content of the first and second substances,

the processor is adapted to perform the steps of the displacement measurement method according to any of claims 1 to 7 when running the computer program.

10. A computer storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the displacement measurement method according to any one of claims 1 to 7.