Miniature portable inclinometer

Abstract

The utility model belongs to the technical field of engineering measurement, and discloses a miniature portable inclinometer which comprises a plurality of hollow measuring rod pieces, a spherical hinge assembly and a control instrument, an angle sensing assembly is arranged in each measuring rod piece, and the angle sensing assemblies are used for collecting inclination angle signals of the corresponding measuring rod pieces and controlling the inclination angle signals of the corresponding measuring rod pieces. The measuring rod pieces are sequentially connected from top to bottom, every two adjacent measuring rod pieces are connected through one spherical hinge assembly so that the measuring rod pieces can incline under the action of pressure, and the angle sensing assemblies arranged in the measuring rod pieces connected from bottom to top are in serial communication and then connected with the control instrument. A plurality of measuring rod pieces with built-in angle sensing assemblies are sequentially hinged through spherical hinge assemblies, inclination angle signals, collected by the angle sensing assemblies, of the corresponding measuring rod pieces are fed to a control instrument in a centralized mode in a serial communication mode according to the positions of the measuring rod pieces, and therefore the miniaturization design of the clinometer is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering surveying, and particularly relates to a micro portable inclinometer. Background Art

[0002] The liquefaction characteristics of soil are a research hotspot in soil dynamics. With the continuous action of dynamic loads such as earthquakes and explosions, the pressure in the soil continuously increases, resulting in the loss of the acting force of the original "soil skeleton", and then leading to the fluid motion characteristics of the soil. Analyzing the soil flow from the perspective of fluid mechanics can not only explore the mechanical response mechanism of liquefied soil, but also contribute to the engineering research on geotechnical blasting, earthquakes, etc.

[0003] At present, the existing inclinometers are relatively large in size and are not suitable for some small soil experimental models built in the laboratory. Therefore, it is necessary to design a highly integrated micro portable inclinometer to meet the data acquisition requirements of small soil experimental models, which is of great significance for the development of engineering research on geotechnical blasting, earthquakes, etc. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a micro portable inclinometer. By integrating angle sensing components in each measuring rod, each angle sensing component is connected by serial communication according to the position of the corresponding measuring rod, so as to form a highly integrated inclinometer, so that its size can be set relatively small according to the actual situation, meeting the measurement requirements of the small soil flow motion characteristics.

[0005] In order to achieve the above purpose, the following technical solutions are adopted:

[0006] A micro portable inclinometer includes a plurality of hollow measuring rods, a ball joint assembly and a controller. Angle sensing components are arranged inside each measuring rod. The angle sensing components are used to collect the inclination angle signals of the corresponding measuring rods. A plurality of measuring rods are connected in sequence from top to bottom, and two adjacent measuring rods are connected by one of the ball joint assemblies, so that the measuring rods can be inclined under pressure. The angle sensing components arranged inside the measuring rods connected from bottom to top are connected to the controller after serial communication.

[0007] Further, the angle sensing component includes a circuit board, a micro control chip, a power supply unit, an angle sensor and a communication unit. The micro control chip, the power supply unit, the angle sensor and the communication unit are all assembled on the circuit board. The micro control chip is respectively connected to the angle sensor and the communication unit by signals. The power supply unit is used to supply power to the micro control chip, the angle sensor and the communication unit.

[0008] Further, a first wiring terminal and a second wiring terminal are respectively arranged inside two adjacent measuring rods. The first wiring terminal is arranged at the upper end inside the measuring rod located below, and the second wiring terminal is arranged at the lower end inside the measuring rod located above. The input end of the first wiring terminal is connected to the communication unit inside the measuring rod located below through a first wire, the output end of the first wiring terminal is connected to the input end of the second wiring terminal through a second wire, and the output end of the second wiring terminal is connected to the communication unit inside the measuring rod located above through a third wire.

[0009] Further, the ball hinge assembly includes a first locking housing, a spring shaft, and a second locking housing. The two ends of the spring shaft are respectively connected to the first locking housing and the second locking housing. When two adjacent measuring rods are connected through one ball hinge assembly, the first locking housing is threadedly connected to the measuring rod located above, the second locking housing is threadedly connected to the measuring rod located below, and the two ends of the spring shaft are respectively in contact with the ends of the two measuring rods.

[0010] Further, the controller includes a power module, a control chip, a first communication module, a display panel, and input keys. The power module is electrically connected to the control chip, the first communication module, the display panel, and the input keys to supply electrical energy to the control chip, the first communication module, the display panel, and the input keys. The control chip is respectively in signal connection with the first communication module, the display panel, and the input keys. The angle sensing components arranged inside the measuring rods connected from bottom to top are serially communicated and then connected to the first communication module.

[0011] Further, the controller further includes a control housing. A PCB board is arranged inside the control housing. The power module, the control chip, and the first communication module are electrically installed on the PCB board. The display panel and the input keys are electrically connected to the PCB board, and the display panel and the input keys are arranged on the outer side wall of the control housing.

[0012] Further, a control terminal signal-connected to the controller is further included.

[0013] Further, the controller further includes a second communication module. The control chip is in signal connection with the second communication module to perform signal interaction with the control terminal through the second communication module.

[0014] Further, the control terminal is a computer.

[0015] Further, the measuring rod is a stainless steel pipe.

[0016] The beneficial effects of the present utility model are:

[0017] The utility model sequentially hinges multiple measuring rods with angle sensing components through ball hinge components. According to the positions of the measuring rods, the inclination angle signals of the corresponding measuring rods collected by each angle sensing component are centrally fed to the controller by means of serial communication, so as to realize the miniaturized design of the inclinometer, reduce the size of the inclinometer, make the whole more lightweight and portable, and the number of measuring rods can be adjusted according to different soil experimental models to meet personalized experimental requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0019] Figure 1 Shows a structural diagram of a micro portable inclinometer according to an embodiment of the present utility model.

[0020] Figure 2 Shows a schematic diagram of data acquisition principle of a micro portable inclinometer according to an embodiment of the present utility model.

[0021] Figure 3 Shows a schematic diagram of serial communication principle of a micro portable inclinometer according to an embodiment of the present utility model.

[0022] Figure 4 Shows a schematic diagram of connection of two measuring rods of a micro portable inclinometer according to an embodiment of the present utility model.

[0023] Figure 5 Shows a schematic diagram of connection of electronic components of an angle sensing component of a micro portable inclinometer according to an embodiment of the present utility model.

[0024] Figure 6 Shows a schematic diagram of connection of electronic components of a controller of a micro portable inclinometer according to an embodiment of the present utility model.

[0025] Figure 7 Shows a structural diagram of a micro portable inclinometer when a control terminal is provided according to an embodiment of the present utility model.

[0026] Reference numerals:

[0027] 100 is a measuring rod, 200 is a spherical hinge assembly, 201 is a first locking housing, 202 is a spring shaft, 203 is a second locking housing, 300 is a controller, 301 is a power module, 302 is a control chip, 303 is a first communication module, 304 is a display panel, 305 is an input button, 306 is a control housing, 307 is a second communication module, 400 is an angle sensing assembly, 401 is a circuit board, 402 is a micro control chip, 403 is a power supply unit, 404 is an angle sensor, 405 is a communication unit, 500 is a first terminal, 600 is a second terminal, 700 is a first wire, 800 is a second wire, 900 is a third wire, 1000 is a control terminal. Detailed implementation manners

[0028] The following uses specific specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0029] In the description of the present invention, unless otherwise stated, "a plurality of" means two or more; the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] The following further describes in detail the specific implementation manners of the present invention in conjunction with the drawings and embodiments.

[0032] An embodiment of the present invention provides a micro portable inclinometer, such asFigure 1 As shown in the figure, the micro portable inclinometer includes a number of hollow measuring rods 100, a ball joint assembly 200 and a controller 300. An angle sensing assembly 400 is provided inside each measuring rod 100. The angle sensing assembly 400 is used to collect the inclination angle signal of the corresponding measuring rod 100. A number of measuring rods 100 are connected in sequence from top to bottom. Two adjacent measuring rods 100 are connected by one of the ball joint assemblies 200 so that the measuring rods 100 can be inclined under pressure. The angle sensing assemblies 400 provided inside the measuring rods 100 connected from bottom to top are connected to the controller 300 after serial communication.

[0033] In specific implementation, the number of measuring rods 100 can be reasonably selected according to the height of the soil body of the built soil experiment model. Before use, a number of measuring rods 100 can be assembled through the ball joint assembly 200. At this time, each measuring rod 100 is theoretically in a vertical state. Subsequently, a number of measuring rods 100 are inserted into the soil body, and the angle sensing assembly 400 in each measuring rod 100 collects different inclination angle signals θ.

[0034] Only as an example, when six measuring rods 100 are used, in a certain soil experiment, the inclination angle signals collected by each measuring rod 100 are as Figure 2 shown. Figure 2 In the figure, since the corresponding soil body of the uppermost measuring rod 100 does not exert pressure on it, it does not incline, so no inclination angle signal is collected (that is, the inclination angle is 0), so it is not marked in Figure 2 the figure. The inclination angle signals θ1, θ2, θ3, θ4, θ5 collected by the second measuring rod 100 from the top to the lowermost measuring rod 100 are fed into the controller 300 located outside the soil experiment model, and can be stored and displayed through the controller 300, so as to realize data collection and visualization.

[0035] In this embodiment, the serial communication method of the angle sensing assemblies 400 provided inside the measuring rods 100 connected from bottom to top can be based on 485 or CAN communication. As Figure 3 shown in the figure, assuming there are x angle sensing assemblies, which are respectively represented as n1, n2......n x ; n x The signals collected by... are sequentially passed through n x-1 ...n1 to be fed into the controller 300, and the control signals of the controller 300 (generally the opening or closing signals of the angle sensing assembly) are sequentially passed through n1, n2...n x-1 . and fed into n x, and so on, to achieve the control of the control instrument 300 over each angle sensing component and the collection of signals.

[0036] In an exemplary embodiment, the specific structural composition of the angle sensing component 400 is provided, as Figure 4 and Figure 5 shown. The angle sensing component 400 includes a circuit board 401, a microcontroller chip 402, a power supply unit 403, an angle sensor 404, and a communication unit 405. The microcontroller chip 402, the power supply unit 403, the angle sensor 404, and the communication unit 405 are all assembled on the circuit board 401. The microcontroller chip 402 is respectively signal-connected to the angle sensor 404 and the communication unit 405. The power supply unit 403 is used to supply power to the microcontroller chip 402, the angle sensor 404, and the communication unit 405.

[0037] This angle sensing component 400 is only activated during the experiment. During the activation process, the main power-consuming components are the microcontroller chip 402, the angle sensor 404, and the communication unit 405. The microcontroller chip 402 only performs simple calculations on the signals collected by the angle sensor 404, such as analog-to-digital conversion and digital filtering. Therefore, the calculation complexity is not high, the power consumption is not high, and the overall data transmission volume is not large. Moreover, a wired communication method is adopted, so the power consumption of the communication unit 405 will not be too large. Therefore, the power supply unit 403 can use non-rechargeable batteries, such as common battery models like No. 1 batteries, No. 5 batteries, and No. 7 batteries on the market, and they are installed by opening a battery slot on the measuring rod 100. Of course, the power supply unit 403 can also use rechargeable batteries, such as lithium batteries. In this case, a charging port can be provided on the outer side wall of the measuring rod 100 corresponding to the power supply unit 403 for charging.

[0038] In this embodiment, the communication unit 405 in the measuring rod 100 functions to interact signals with the communication unit 405 in other measuring rods 100, thereby realizing serial communication. It should be noted that the communication unit 405 in the topmost measuring rod 100 also functions to interact signals with the control instrument 300.

[0039] In this embodiment, the measuring rod 100 can be selected as a stainless steel pipe.

[0040] In an exemplary embodiment, the specific wiring method for serial communication is provided, as Figure 4As shown in the figure, a first terminal 500 and a second terminal 600 are respectively arranged inside two adjacent measuring rods 100. The first terminal 500 is arranged at the upper end inside the lower measuring rod 100, and the second terminal 600 is arranged at the lower end inside the upper measuring rod 100. The input end of the first terminal 500 is connected to the communication unit inside the lower measuring rod 100 through a first wire 700. The output end of the first terminal 500 is connected to the input end of the second terminal 600 through a second wire 800. The output end of the second terminal 600 is connected to the communication unit 405 inside the upper measuring rod 100 through a third wire 900.

[0041] Taking CAN communication as an example, the input end of the first terminal 500 is configured with four access ends, that is, the first wire 700 is four wires, namely the power supply line VCC, the positive data line CAN+, the negative data line CAN-, and the ground wire GND. After the four wires are connected to the first terminal 500, they are connected to the second terminal 600 through a second wire 800. The second wire 800 should pass through the two measuring rods 100 in a sealed manner. The output end of the second terminal 600 is also configured with four output ends, that is, the third wire 900 is four wires, namely the power supply line VCC, the positive data line CAN+, the negative data line CAN-, and the ground wire GND. The data collected inside the lower measuring rod 100 is fed to the upper measuring rod 100 to achieve serial communication.

[0042] In an exemplary embodiment, the specific structural composition of the ball joint assembly 200 is provided, as Figure 4 shown, the ball joint assembly 200 includes a first locking housing 201, a spring shaft 202, and a second locking housing 203. The two ends of the spring shaft 202 are respectively connected to the first locking housing 201 and the second locking housing 203. When two adjacent measuring rods 100 are connected by a ball joint assembly 200, the first locking housing 201 is threadedly connected to the upper measuring rod 100, and the second locking housing 203 is threadedly connected to the lower measuring rod 100. The two ends of the spring shaft 202 are respectively in contact with the ends of the two measuring rods 100.

[0043] In this embodiment, the first locking housing 201 and the second locking housing 203 together fix the ends of the spring shaft 202 and are assembled with the two measuring rods 100 by a threaded method, realizing the simple installation of the measuring rods 100, and ensuring that the two connected measuring rods 100 can be inclined under the action of pressure without deforming themselves, so as to collect the inclination data inside the soil body.

[0044] Understandably, after the spring shaft 202 is set, the second wire 800 can pass through the middle of the spring shaft 202, thus neither occupying space nor affecting the normal function of the spring shaft 202.

[0045] In an exemplary embodiment, the specific structural composition of the controller 300 is provided, such as Figure 6 As shown, the controller 300 includes a power supply module 301, a control chip 302, a first communication module 303, a display panel 304, and input keys 305. The power supply module 301 is electrically connected to the control chip 302, the first communication module 303, the display panel 304, and the input keys 305 to provide electrical energy for the control chip 302, the first communication module 303, the display panel 304, and the input keys 305. The control chip 302 is respectively signal-connected to the first communication module 301, the display panel 304, and the input keys 305. The angle sensing components 400 provided inside the respective measuring rods 100 connected from bottom to top are serially communicated and then connected to the first communication module 303.

[0046] The input keys 305 are used to input control signals. The control signals are usually the start or stop of data acquisition. Taking the start of data acquisition as an example, when the control chip 302 receives the data acquisition start signal input by the input keys 305, the control signal is sent to the angle sensing components 400 through the first communication module 303 to start the angle sensing components 400. Subsequently, the angle sensing components 400 work, and the tilt angle signals collected by them will be transmitted to the control chip 302 through the first communication module 303, and the control chip 302 will display the corresponding signals through the display panel 304.

[0047] Exemplarily, as Figure 7 shown, the controller 300 further includes a control housing 306. A PCB board (not shown in the figure) is provided inside the control housing 306. The power supply module 301, the control chip 302, and the first communication module 303 are electrically installed on the PCB board. The display panel 304 and the input keys 305 are electrically connected to the PCB board, and the display panel 304 and the input keys 305 are provided on the outer side wall of the control housing 306.

[0048] It should be noted that in some embodiments, the display panel 304 and the input keys 305 can be replaced with a touch screen.

[0049] In some embodiments, as Figure 7 shown, the micro portable inclinometer further includes a control terminal 1000 signal-connected to the controller 300.

[0050] Exemplarily, as Figure 6As shown, the controller 300 further includes a second communication module 307. The control chip 302 is signal-connected to the second communication module 307 to perform signal interaction with the control terminal 1000 through the second communication module 307.

[0051] In this embodiment, the control terminal 1000 can be selected as a computer that can be purchased on the market.

[0052] It should be noted that the module units capable of realizing communication mentioned in this article, such as the communication unit 405, the first communication module 303, and the second communication module 307. Among them, the communication unit 405 and the first communication module 303 need to perform signal interaction, so the same module units are adopted, such as the existing communication modules used in 485 communication or CAN communication in the prior art. The second communication module 307 can be selected as a wireless communication module such as Bluetooth, WiFi, 4G, 5G, etc. according to the actual situation.

[0053] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Those of ordinary skill in the relevant technical fields can also make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The patent protection scope of the present invention shall be defined by the claims.

Claims

1. A miniature portable inclinometer, characterized in that: It includes a plurality of hollow measuring rods, a ball joint assembly and a controller. An angle sensor assembly is arranged inside each measuring rod. The angle sensor assembly is used to collect the tilt angle signal of the corresponding measuring rod. The plurality of measuring rods are connected in sequence from top to bottom, wherein two adjacent measuring rods are connected through a ball joint assembly so that the measuring rods can tilt under the action of pressure. The angle sensor assemblies arranged inside each measuring rod connected from bottom to top are connected to the controller after serial communication.

2. The miniature portable inclinometer according to claim 1, characterized in that: The angle sensing component includes a circuit board, a microcontroller chip, a power supply unit, an angle sensor and a communication unit. The microcontroller chip, the power supply unit, the angle sensor and the communication unit are all assembled on the circuit board. The microcontroller chip is respectively connected to the angle sensor and the communication unit signals. The power supply unit is used to supply power to the microcontroller chip, the angle sensor and the communication unit.

3. The miniature portable inclinometer according to claim 2, characterized in that: A first wiring terminal and a second wiring terminal are respectively arranged inside two adjacent measuring rods. The first wiring terminal is arranged at the upper end of the lower measuring rod, and the second wiring terminal is arranged at the lower end of the upper measuring rod. The input end of the first wiring terminal is connected to the communication unit inside the lower measuring rod through a first wire, the output end of the first wiring terminal is connected to the input end of the second wiring terminal through a second wire, and the output end of the second wiring terminal is connected to the communication unit inside the upper measuring rod through a third wire.

4. The miniature portable inclinometer according to claim 1, characterized in that: The ball joint assembly includes a first locking shell, a spring shaft and a second locking shell. The two ends of the spring shaft are respectively connected to the first locking shell and the second locking shell. When two adjacent measuring rods are connected through a ball joint assembly, the first locking shell is threadedly connected to the measuring rod located above, and the second locking shell is threadedly connected to the measuring rod located below. The two ends of the spring shaft are respectively in contact with the ends of the two measuring rods.

5. The miniature portable inclinometer according to claim 1, characterized in that: The controller includes a power module, a control chip, a first communication module, a display panel and an input button. The power module is electrically connected to the control chip, the first communication module, the display panel and the input button to provide power to the control chip, the first communication module, the display panel and the input button. The control chip is respectively connected to the first communication module, the display panel and the input button signal. The angle sensor components arranged inside each measuring rod connected from bottom to top communicate in series and then connect to the first communication module.

6. The miniature portable inclinometer according to claim 5, characterized in that: The controller also includes a control shell, in which a PCB board is arranged, the power module, the control chip, and the first communication module are electrically installed on the PCB board, the display panel and the input buttons are electrically connected to the PCB board, and the display panel and the input buttons are arranged on the outer wall of the control shell.

7. The miniature portable inclinometer according to claim 5, characterized in that: It also includes a control terminal connected to the control instrument by signal.

8. The miniature portable inclinometer according to claim 7, characterized in that: The control instrument further includes a second communication module, and the control chip is signal-connected to the second communication module so as to perform signal interaction with the control terminal through the second communication module.

9. The miniature portable inclinometer according to claim 7, characterized in that: The control terminal is a computer.

10. The miniature portable inclinometer according to claim 1, characterized in that: The measuring rod is a stainless steel tube.

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