阅读说明：本技术 一种无线太阳能低功耗倾角仪系统 (Wireless solar low-power consumption inclinometer system ) 是由 张义 于 2021-01-13 设计创作，主要内容包括：本发明公开了一种无线太阳能低功耗倾角仪系统,包括检测单元、信号传输单元、数据分析单元、显示单元、供电单元,所述检测单元包括两端封闭的圆管和多个对称设置在圆管内壁的限位槽,所述限位槽内限位有阻隔板,所述圆管内盛装有密度大于阻隔板的透明流体,所述圆管上端封口处透明,且在所述圆管上端封口上方设置有光电检测板,所述光电检测板上设置有与限位槽位置对应的激光传感器以检测阻隔板与激光传感器之间的距离,所述距离点通过信号传输单元传输到数据分析单元,通过多个液位面上的坐标点构建平面,根据投影法可以精确测算出倾角值,不受环境和安装工艺的影响,且测量过程能耗低,可长时间稳定使用。(The invention discloses a wireless solar low-power consumption inclinometer system, which comprises a detection unit, a signal transmission unit, a data analysis unit, a display unit and a power supply unit, wherein the detection unit comprises a circular tube with two closed ends and a plurality of limiting grooves symmetrically arranged on the inner wall of the circular tube, a blocking plate is limited in the limiting grooves, a transparent fluid with the density larger than that of the blocking plate is contained in the circular tube, the upper end sealing part of the circular tube is transparent, a photoelectric detection plate is arranged above the upper end sealing part of the circular tube, a laser sensor corresponding to the limiting grooves is arranged on the photoelectric detection plate to detect the distance between the blocking plate and the laser sensor, the distance point is transmitted to the data analysis unit through the signal transmission unit, a plane is constructed through a plurality of coordinate points on a liquid level surface, an inclination angle value can be accurately measured and calculated according to a projection method, and the inclination angle is not influenced by environment and installation process, and the energy consumption in the measuring process is low, and the device can be stably used for a long time.)

1. The utility model provides a wireless solar energy low-power consumption inclinometer system, its characterized in that, includes detecting element (1), signal transmission unit (2), data analysis unit (3), display element (4), power supply unit (5), detecting element (1) includes that both ends confined pipe (101) and a plurality of symmetry set up spacing groove (102) at pipe (101) inner wall, spacing has baffler (103) in spacing groove (102), the splendid attire has transparent fluid (104) that density is greater than baffler (103) in pipe (101), the department of sealing of pipe (101) upper end is transparent, and pipe (101) upper end is sealed the top and is provided with photoelectric detection board (105), lightThe electric detection plate (105) is provided with a laser sensor corresponding to the position of the limit groove (102) to detect the distance between the barrier plate (103) and the laser sensor, and the detected distance point is D₁、D₂、D₃......D_N；

The distance points are transmitted to a data analysis unit (3) through a signal transmission unit (2), the upper end seal face of the circular tube (101) is taken as a reference face, any two symmetrical points are taken as initial points, a connecting line is used for constructing an XY axis, a Z axis is constructed by the axis of the circular tube (101), the data analysis unit (3) constructs a coordinate point cloud set on the liquid level face of the fluid (104), and the coordinates of each point are (rsinNalpha, rcosNalpha, D)_N），

Wherein r is the distance from each measuring point to the central axis of the circular tube (101), and Nalpha is the included angle between the connecting line of the Nth measuring point and the initial point;

any one of the two symmetrical coordinate points is taken, a direction axis is determined, and a direction axis inclination angle theta is determined according to a line projection method;

and (3) determining an included angle beta between the liquid level surface of the fluid (104) and the reference surface by taking any three coordinate points according to a surface projection method.

2. A wireless solar energy low power consumption inclinometer system according to claim 1, characterized in that, the three coordinate points are not repeatedly taken many times, the included angle β between the liquid level surface of the fluid (104) and the reference surface is determined according to the projection method, and the average value is calculated.

3. The wireless solar energy inclinometer system with low power consumption as claimed in claim 1, characterized in that a vibration switch is arranged in the photoelectric detection board (105), when the vibration switch is triggered, the laser sensor is started to carry out the first distance measurement to complete the measurement of the inclination angle of the liquid level surface of the fluid (104) in the initial state, and when the vibration switch is completely stopped, the laser sensor is started to carry out the measurement again to complete the measurement of the inclination angle of the liquid level surface of the fluid (104) in the steady state.

4. A wireless solar energy inclinometer system with low power consumption according to claim 3, characterized in that the inclination change is obtained by taking the difference of the measured inclination of the liquid level surface of the fluid (104) at each vibration of the vibration switch.

5. A wireless solar energy inclinometer system with low power consumption according to claim 1, characterized in that the signal transmission unit (2) adopts NB-IOT wireless communication, and an antenna (106) is arranged on one side of the photoelectric detection board (105) for wireless signal transmission.

6. A wireless solar energy inclinometer system with low power consumption according to claim 1, characterized in that the power supply unit (5) is a solar panel which is arranged above the photoelectric detection plate (105).

7. The wireless solar energy inclinometer system with low power consumption according to claim 1, characterized in that the display unit (4) is used for displaying the inclination change state of the liquid surface of the fluid (104) and the corresponding inclination value.

8. The wireless solar energy low-power consumption inclinometer system as claimed in claim 1, characterized in that said fluid (104) contains 1/3-2/3 volume of round tube (101).

9. The wireless solar energy inclinometer system with low power consumption according to claim 1, characterized in that a mounting plate (6) is fixed on the lower closed end surface of the circular tube (101) for mounting the circular tube (101) on an object to be measured.

10. A wireless solar energy inclinometer system with low power consumption according to claim 1, characterized in that the upper and lower closed end faces of the circular tube (101) are parallel to the mounting plate (6).

Technical Field

The invention belongs to the technical field of sensors, and particularly relates to a wireless solar low-power-consumption inclinometer system.

Background

Tilt sensors, also known as inclinometers, gradienters, inclinometers, are often used for the measurement of horizontal angular changes of systems, gradienters ranging from simple bubble gradienters of the past to electronic gradienters of today as a result of the development of automation and electronic measurement techniques. As a detection tool, the device becomes an indispensable important measuring tool in the fields of bridge erection, railway laying, civil engineering, oil drilling, aviation and navigation, industrial automation, intelligent platforms, machining and the like. The electronic level meter is a very precise detection tool for measuring small angles, and can be used for measuring the inclination of a measured plane relative to a horizontal position, the mutual parallelism and the perpendicularity of two components.

The theoretical basis of the existing inclinometer is Newton's second law, and according to the basic physical principle, the speed cannot be measured but the acceleration can be measured in a system. If the initial velocity is known, the linear velocity can be calculated through integration, and then the linear displacement can be calculated, so that the acceleration sensor is actually an acceleration sensor applying the inertia principle. When the tilt sensor is at rest, i.e. no acceleration is acting in the lateral and vertical directions, then only the gravitational acceleration acts on it. The included angle between the vertical gravity axis and the sensitive axis of the acceleration sensor is the inclined angle.

The inclination angle sensor in general is static measurement or quasi-static measurement, once there is external acceleration, the acceleration measured by the acceleration chip includes the external acceleration, so the calculated angle is inaccurate, and the stroke is easy to occur, the acceleration sensor is damaged, and the real-time measurement is needed during the measurement, the power consumption is large, and the measurement precision is greatly influenced by the installation and the external environment.

In order to improve the problems of high measurement accuracy and stability and high power consumption of an inclinometer, the application provides a wireless solar low-power consumption inclinometer system which is not based on an acceleration principle.

Disclosure of Invention

The invention aims to: the wireless solar low-power-consumption inclinometer system is provided for solving the problems that in the prior art, an inclination angle sensor is low in measurement accuracy, greatly influenced by installation and environment and high in power consumption.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a wireless solar energy low-power consumption inclinometer system, includes detecting element, signal transmission unit, data analysis unit, display element, power supply unit, detecting element includes that both ends confined pipe and a plurality of symmetry set up the spacing groove at the pipe inner wall, spacing inslot is spacing to have the baffler, the intraductal density that contains of pipeThe device comprises a transparent fluid larger than a blocking plate, wherein the sealing position of the upper end of a circular tube is transparent, a photoelectric detection plate is arranged above the sealing position of the upper end of the circular tube, a laser sensor corresponding to the position of a limiting groove is arranged on the photoelectric detection plate to detect the distance between the blocking plate and the laser sensor, and the detected distance point is D₁、D₂、D₃......D_N；

The distance points are transmitted to a data analysis unit through a signal transmission unit, the upper end seal face of the circular tube is taken as a reference face, any two symmetrical points are taken as initial points, an XY axis is constructed by connecting lines, a Z axis is constructed by the axis of the circular tube, the data analysis unit constructs a coordinate point cloud set on the liquid level face of the fluid, and the coordinates of each point are (rsinNalpha, rcosNalpha, D)_N），

Wherein r is the distance from each measuring point to the central axis of the circular tube, and Nalpha is the included angle between the line connecting the Nth measuring point and the initial point;

any two symmetrical coordinate points are taken, a direction axis is determined, and a direction axis inclination angle theta is determined according to a line projection method;

and (4) determining an included angle beta between the liquid level surface of the fluid and the reference surface by taking any three coordinate points according to a surface projection method.

As a further description of the above technical solution:

and repeatedly taking three coordinate points, determining an included angle beta between the fluid liquid level surface and the reference surface according to a projection method, and calculating an average value.

As a further description of the above technical solution:

and a vibration switch is arranged in the photoelectric detection plate, when the vibration switch is triggered, the laser sensor is started to carry out first distance measurement to finish the measurement of the liquid level surface inclination angle of the fluid in an initial state, and when the vibration switch is triggered and completely stopped, the laser sensor is started to carry out the distance measurement again to finish the measurement of the liquid level surface inclination angle of the fluid in a stable state.

As a further description of the above technical solution:

and taking the difference of the inclination angles of the liquid level surface of the fluid measured when the vibration switch vibrates every time to obtain the inclination angle variation.

As a further description of the above technical solution:

the signal transmission unit adopts NB-IOT wireless communication, and one side of the photoelectric detection plate is provided with an antenna for wireless signal transmission.

As a further description of the above technical solution:

the power supply unit adopts a solar panel, and the solar panel is arranged above the photoelectric detection plate.

As a further description of the above technical solution:

the display unit is used for displaying the inclination angle change state of the liquid level of the fluid and the corresponding inclination angle value.

As a further description of the above technical solution:

the fluid containing volume is 1/3-2/3 of the volume of the round pipe.

As a further description of the above technical solution:

and the lower closed end surface of the circular tube is fixedly provided with an installation plate for installing the circular tube on a measured object.

As a further description of the above technical solution:

the upper closed end face and the lower closed end face of the circular tube are parallel to the mounting plate.

As a further description of the above technical solution:

the surface threaded connection of screw thread post has the screw cap, and the front and the back of screw cap all are through connecting plate fixedly connected with second slider, and second slider sliding connection is in the second spout, and two second spouts are seted up respectively at shells inner wall's front and back, the left surface fixedly connected with L shaped plate of connecting plate, two L shaped plate symmetries about per set up, and the L shaped plate is located spacing downthehole.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the invention, through the directional inclination angles of two symmetrical coordinate points, if the connecting line of the two symmetrical coordinate points is consistent with the rotation axis of the object to be measured, theta is the rotational inclination angle of the object to be measured, and if the connecting line of the two symmetrical coordinate points is not consistent with the rotation axis, theta is the rotation angle on the direction changing shaft, so that the inclination angle component of a certain direction vector can be accurately measured, for example, the inclination angle component is applied to angle change measurement in an uncertain direction, the data measurement adaptability is stronger, and the defect that the current acceleration sensor can only measure the inclination angle value in the polar shaft direction is overcome;

2. in the invention, a plane is constructed by coordinate points on a plurality of liquid level surfaces, the inclination angle value can be accurately measured and calculated according to a projection method, the influence of the environment and the installation process is avoided, the energy consumption in the measurement process is low, and the liquid level measuring device can be stably used for a long time;

3. according to the invention, the vibration switch is arranged in the photoelectric detection plate, when the vibration switch is triggered, the laser sensor is started to carry out first distance measurement to complete the measurement of the inclination angle of the liquid level surface in the initial state, when the vibration switch is triggered and completely stopped, the laser sensor is started to carry out distance measurement again to complete the measurement of the inclination angle of the liquid level surface in the stable state of the fluid, the selection sensitivity of the vibration switch is higher, so that the measured inclination angle value of each time is always the stable state value of the liquid level of the fluid, the difference value is taken for the inclination angle of the liquid level surface measured when the vibration switch vibrates each time, the accurate inclination angle variation is obtained, the measurement energy consumption is low, the applicability is strong.

Drawings

FIG. 1 is a schematic structural diagram of an inclinometer in a wireless solar low-power consumption inclinometer system according to the present invention;

FIG. 2 is a schematic diagram of a wireless solar low power consumption inclinometer system unit module according to the present invention;

FIG. 3 is a schematic cross-sectional view of a circular tube in a wireless solar low power consumption inclinometer system according to the present invention;

FIG. 4 is a schematic diagram of the internal structure of a circular tube in a wireless solar low-power consumption inclinometer system according to the present invention;

FIG. 5 is a state diagram of a fluid level surface in a wireless solar low power consumption inclinometer system according to the present invention;

FIG. 6 is a schematic diagram of a coordinate point in a wireless solar low-power consumption inclinometer system according to the present invention;

FIG. 7 is a schematic diagram of determining an inclination angle of a symmetric coordinate point by a projection method in embodiment 1 of the present invention;

FIG. 8 is a schematic diagram of measuring the inclination angle of the fluid level surface by the projection method in embodiment 2 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-5, a wireless solar low-power consumption inclinometer system comprises a detection unit 1, a signal transmission unit 2, a data analysis unit 3, a display unit 4 and a power supply unit 5, wherein the detection unit 1 comprises a round tube 101 with two closed ends and a plurality of limiting grooves 102 symmetrically arranged on the inner wall of the round tube 101, a blocking plate 103 is limited in the limiting grooves 102, a transparent fluid 104 with the density larger than that of the blocking plate 103 is contained in the round tube 101, the fluid 104 contains 1/3-2/3 with the volume of the round tube 101, the sealing position of the upper end of the round tube 101 is transparent, a photoelectric detection plate 105 is arranged above the sealing position of the upper end of the round tube 101, a laser sensor corresponding to the position of the limiting grooves 102 is arranged on the photoelectric detection plate 105 to detect the distance between the blocking plate 103 and the laser sensor, and the detected distance point is₁、D₂、D₃......D_NThe measured distance point is transmitted to the data analysis unit 3 through the signal transmission unit 2, the signal transmission unit 2 adopts NB-IOT wireless communication, an antenna 106 is arranged on one side of the photoelectric detection plate 105 and used for sending wireless signals, the power supply unit 5 adopts a solar panel, the solar panel is arranged above the photoelectric detection plate 105, the display unit 4 is used for displaying the inclination angle change state of the liquid level of the fluid 104 and the corresponding inclination angle value, the lower closed end face of the circular tube 101 is fixedly provided with the mounting plate 6 and used for mounting the circular tube 101 on a measured object, and the upper closed end face and the lower closed end face of the circular tube 101 are both parallel to the.

Referring to fig. 6, when the inclinometer of the embodiment is installed on a measured object, the measured object is inclined, the fluid 104 is always horizontal in a steady state, and an inclination angle is necessarily generated between the fluid and the measured object, and the upper end of the circular tube 101 is takenThe seal surface is a reference surface, any two symmetrical points are taken as initial points, an XY axis is constructed by connecting lines, a Z axis is constructed by the axis of the circular tube 101, the data analysis unit 3 constructs a coordinate point cloud set on the liquid level surface of the fluid 104, and the coordinates of each point are (rsinNalpha, rcosNalpha, D)_N），

Wherein r is the distance from each measuring point to the central axis of the circular tube 101, and na is the angle between the connecting line of the nth measuring point and the initial point;

referring to FIG. 7, a direction axis is determined by taking two symmetrical coordinate points, and the height difference between the two coordinate points isDetermining the tilt angle of the steering axis from the line projection method。

According to the measured direction inclination angles of the two symmetrical coordinate points, if a connecting line of the two symmetrical coordinate points is consistent with the rotation axis of the measured object, theta is the rotation inclination angle of the measured object, and if the connecting line of the two symmetrical coordinate points is not consistent with the rotation axis, theta is the rotation angle on the direction changing shaft, so that the inclination angle component of a certain direction vector can be accurately measured, for example, the inclination angle component is applied to angle change measurement in an uncertain direction, the data measurement adaptability is higher, and the defect that the current acceleration sensor can only measure the inclination angle value in the polar shaft direction is overcome.

Example 2

Referring to fig. 8, on the basis of embodiment 1, any of three coordinate points (A, B, C) is taken, and in accordance with the surface projection method, the straight line on the plane and the projection plane having the largest inclination angle, which is referred to as the maximum inclination line of the plane to a certain projection plane, and on the ABC plane, the inclination angle of the straight line AK perpendicular to the horizontal line to the H plane of the reference plane is the largest among the straight lines drawn through the point a, the straight line AK being the maximum inclination line of the ABC plane to the H plane, and β being the plane angle of the dihedral angle formed by the ABC plane and the H plane of the reference plane, which is the inclination angle of the ABC plane to the H plane, which are each sampled at a point on the fluid level surface, is determined from the three points, the ABC plane being the fluid level surface, thereby calculating the value of the inclination angle β according.

In order to improve the calculation accuracy of the inclination angle, three coordinate points are not repeatedly taken for many times, the included angle beta between the liquid level surface of the fluid 104 and the reference surface is determined according to a projection method, the average value is calculated, and the included angle beta between the liquid level surface of the fluid 104 and the reference surface is further accurately determined.

Example 3

On the basis of embodiments 1 and 2, in order to make the measured inclination angle value always be the steady state value of the fluid level, a vibration switch is arranged in the photoelectric detection plate 105, when the vibration switch is triggered, the laser sensor is started to perform first distance measurement to complete the inclination angle measurement of the fluid level surface of the fluid 104 in an initial state, when the vibration switch is triggered and completely stopped, the laser sensor is started to perform distance measurement again to complete the inclination angle measurement of the fluid level surface under the steady state of the fluid 104, the selection sensitivity of the vibration switch is high, and the selection sensitivity is preferably consistent with the vibration characteristics of the fluid, so that the measured inclination angle value of each time is always the steady state value of the fluid level, and the inclination angle measured by the vibration switch at each time is calculated to obtain the inclination angle variation.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.