CN111157044A - Inclination and force measurement integrated device - Google Patents
Inclination and force measurement integrated device Download PDFInfo
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- CN111157044A CN111157044A CN202010003363.6A CN202010003363A CN111157044A CN 111157044 A CN111157044 A CN 111157044A CN 202010003363 A CN202010003363 A CN 202010003363A CN 111157044 A CN111157044 A CN 111157044A
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
The invention relates to an inclination measuring and force measuring integrated device, which comprises: the device comprises a measuring single section, a wire connector, a bus and a data acquisition module; the measurement section includes: casing, microprocessor, power supply circuit, communication circuit, inclination sensor and pressure sensor. The power circuit, the communication circuit, the inclination angle sensor and the pressure sensor are arranged in the shell; the power circuit, the communication circuit, the inclination angle sensor and the pressure sensor are respectively connected with the microprocessor. The measuring single sections are at least arranged into one group, and each group of measuring single sections comprises at least one measuring single section; a plurality of measuring single sections in each group of measuring single sections are movably connected in series, and the communication circuits of two adjacent measuring single sections are connected. Each group of the measuring single-section communication circuits are connected to a bus through a wire connector, and the bus is connected with a data acquisition module. The inclination and force measurement integrated device provided by the invention can monitor the displacement distribution of the measured object and the stress distribution condition of the measured object.
Description
Technical Field
The invention relates to the technical field of geological disaster monitoring, in particular to an integrated device for inclination measurement and force measurement.
Background
China is one of the most serious few countries of the world, particularly landslides, debris flows, collapses and other geological disasters, and the landslide geological disasters each year account for about 70 percent of the total number of geological disasters in the country.
The landslide deep horizontal displacement monitoring is a monitoring means widely applied to landslide deformation monitoring at present, and is used for monitoring the deep horizontal displacement and judging the position of a sliding surface. At present, instruments for monitoring displacement at deep part of landslide mainly comprise movable inclinometers and fixed inclinometers. The movable inclinometer needs manual reading at regular intervals, wastes time and labor and cannot realize automation. Although the fixed inclinometer can realize automatic monitoring, the fixed inclinometer has higher cost and limited installation number of cable measuring points to be led out, so the fixed inclinometer has certain limitation in application. Secondly, the existing technical scheme on the market at present can only monitor displacement, and no device capable of integrating the displacement and stress monitoring exists, so that the deformation and stress of the monitored object cannot be accurately measured at the same time. Meanwhile, the traditional inclinometer pipe can be twisted in the installation and use processes, so that the accuracy of a monitoring result and the judgment of the deformation direction are influenced.
Disclosure of Invention
The invention provides an inclination measuring and force measuring integrated device, aiming at the technical problem that the existing instrument for monitoring the displacement of the deep part of a landslide cannot accurately and automatically monitor the horizontal displacement of the deep part of the landslide and the sectional pressure value in the prior art.
The technical scheme for solving the technical problems is as follows:
an integrated inclinometer and force measurement device, comprising: the device comprises a measuring single section, a wire connector, a bus and a data acquisition module; the measurement section includes: the device comprises a shell, a microprocessor, a power circuit, a communication circuit, a tilt angle sensor and a pressure sensor;
the power circuit, the communication circuit, the inclination angle sensor and the pressure sensor are arranged in the shell; the power circuit, the communication circuit, the inclination angle sensor and the pressure sensor are respectively connected with the microprocessor;
the measuring single sections are at least arranged into one group, and each group of measuring single sections comprises at least one measuring single section; a plurality of the measuring single sections in each group of measuring single sections are movably connected in series, and the communication circuits of two adjacent measuring single sections are connected;
and each group of the communication circuits of the measuring single sections are connected to the bus through a wire connector, and the bus is connected with the data acquisition module.
In the preferred scheme, the method further comprises the following steps: a ball joint hinge; two adjacent measuring single sections in each group of measuring single sections are movably connected through the ball joint articulated elements.
In the preferred scheme, the method further comprises the following steps: a processing device; the data acquisition module is connected with the processing equipment.
In a preferred embodiment, the processing apparatus includes:
the data acquisition unit is used for acquiring the inclination angle and pressure data of each group of measuring single sections from the data acquisition module;
the data grouping unit acquires the inclination angle and pressure data of each measuring unit from the data acquisition unit; grouping the acquired inclination angle and pressure data, dividing the inclination angle and pressure data of the same measuring single section into a group, and numbering the address of each measuring single section;
a calculating unit for acquiring each group of data from the data grouping unit according to Si＝L×sinθiCalculating the horizontal displacement of each measuring single section in the same group, and storing the horizontal displacement of each measuring single section in the same group in the corresponding grouped data in the data grouping unit; and calculating the horizontal displacement S of the deep part of the landslide as S1+S2+……SiAnd storing;
wherein, the i is the address number of the measurement single section; said SiMeasuring the horizontal displacement of the single section for the ith section; l is the length of the measuring single section; theta is describediMeasuring the inclination angle of the single section for the ith section; said S1、S2……SiThe amount of horizontal displacement of each of the individual sections is measured for the same group.
In the preferred scheme, the method further comprises the following steps:
the display unit is used for acquiring each group of data from the data grouping unit and displaying the address number, the inclination angle, the horizontal displacement and the pressure data of each measuring single section in real time; and acquiring the landslide deep horizontal displacement S value from the calculation unit for real-time display.
In a preferred scheme, the inclination angle sensor is a three-axis acceleration sensor.
In a preferred scheme, the pressure sensor is a ceramic pressure sensor.
In the preferred scheme, the shell is of a stainless steel sheet-shaped structure.
In the preferred scheme, the tilt angle sensor and the pressure sensor are fixed inside the shell through waterproof glue or a mechanical connecting piece.
The inclination measuring and force measuring integrated device provided by the invention at least has the following beneficial effects or advantages:
according to the inclination measuring and force measuring integrated device provided by the invention, a plurality of measuring single sections are movably connected in series; an inclination angle sensor and a pressure sensor are arranged in the measuring single section; the inclination angle sensors in different measuring single sections are connected in series through a bus, and the inclination angle sensors are connected with the processing equipment through a data acquisition module; the pressure sensors in different measuring single sections are connected in series, and the pressure sensors are connected with the processing equipment through the data acquisition module. The inclination measuring and force measuring integrated device provided by the invention can be used for measuring through a plurality of measuring single sections, the measuring single sections are tightly attached to a landslide, the inclination angle and pressure data of each measuring single section can be automatically measured, the data can be automatically analyzed and processed, the deep horizontal displacement of the landslide and the pressure value borne by each measuring single section can be obtained through calculation, the displacement distribution of a measured object and the stress distribution condition of the measured object can be monitored, the inclination measuring and force measuring integrated device can be used for monitoring the horizontal displacement and the horizontal thrust of the landslide in the depth direction of the landslide, and can also be used for monitoring the displacement and the stress of structures such as anti-slide piles, beam plates of house buildings and bridges. The inclination measuring and force measuring integrated device provided by the invention can be applied to both indoor model tests and field monitoring, and can realize indoor and field functions only by changing the rigidity and the size of the material of the measuring unit according to actual conditions. The inclination measuring and force measuring integrated device provided by the invention does not need to be provided with an inclination measuring pipe on site, so that the influence on a monitoring result due to the torsion of the inclination measuring pipe can be avoided, and the accuracy of the monitoring result is improved. The inclination measuring and force measuring integrated device provided by the invention can output digital signals and analog signals, and can realize data acquisition by adopting a common acquisition instrument on the market, such as a campbell, a dataker and the like.
Drawings
FIG. 1 is a schematic structural diagram of a group of measurement units according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a set of measurement pipe joint connections provided by an embodiment of the present invention;
FIG. 3 is a block diagram of an internal circuit of a measurement unit according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of an integrated apparatus for measuring inclination and force provided by an embodiment of the present invention;
FIG. 5 is a block diagram of a processing device according to an embodiment of the present invention;
fig. 6 is a measurement schematic diagram of an integrated device for measuring inclination and force provided by the embodiment of the invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-measuring single section, 11-tilt angle sensor, 12-pressure sensor, 2-ball joint, 21-bolt and 3-bus.
Detailed Description
The invention provides an inclination measuring and force measuring integrated device, aiming at the technical problem that the existing instrument for monitoring the displacement of the deep part of a landslide cannot accurately and automatically monitor the horizontal displacement of the deep part of the landslide and the sectional pressure value in the prior art.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, an embodiment of the present invention provides an integrated apparatus for measuring inclination and force, including: the device comprises a measuring single section 1, a wire connector, a bus and a data acquisition module; the measurement section 1 includes: the device comprises a shell, a microprocessor, a power circuit, a communication circuit, a tilt angle sensor 11, a pressure sensor 12 and a ball joint articulated piece 2. The power circuit, the communication circuit, the inclination angle sensor 11 and the pressure sensor 12 are arranged in the shell; wherein, the tilt angle sensor 11 and the pressure sensor 12 are fixed inside the shell through waterproof glue or a mechanical connecting piece; the inclination sensor 11 is used for measuring the inclination angle of the single measuring section 1; the pressure sensor 12 is used for measuring the pressure value of the current measuring single section 1; the microprocessor collects data of the tilt angle sensor 11 and the pressure sensor 12, and stable data are obtained after filtering; when the microprocessor receives the data request instruction, the microprocessor sends the valid data to an upstream device (such as a processing device) through the serial bus. The power circuit, the communication circuit, the tilt sensor 11 and the pressure sensor 12 are electrically connected with the microprocessor respectively. The measuring single sections 1 are at least arranged into one group, and each group of measuring single sections 1 comprises at least one measuring single section 1. A plurality of measurement single sections 1 in every group measurement single section 1 are with the mode swing joint of establishing ties, and is concrete, through bulb articulated elements 2 swing joint between two adjacent measurement single sections 1 in every group measurement single section 1, and 2 both ends of bulb articulated elements are provided with hollow bolt 21 respectively, and bolt 21 is used for connecting the measurement single section 1 of both sides, and the bus passes from bolt 21 and 2 insides of bulb articulated elements. The communication circuits of two adjacent measuring single sections 1 are connected, the communication circuits of the measuring single sections 1 are connected to a bus (such as an RS422 bus) through a wire connector, and the bus is connected with a data acquisition module.
In the embodiment of the invention, the measuring single section 1 is of a stainless steel sheet-shaped structure. The sheet structure is more beneficial to the pasting of the sensor, and when the sensor is used for measuring force, the contact between the sensor and the sheet structure is more compact, and the measurement precision is higher.
The inclination angle sensor 11 is a triaxial acceleration sensor, the triaxial acceleration sensor can realize the inclination angle measurement of positive and negative 90 degrees of a double shaft, and the measurement precision is 0.05 degree.
The pressure sensor 12 is a ceramic pressure sensor 12, the ceramic pressure sensor 12 is arranged inside the measuring single section 1, when a measured object generates pressure on the measuring single section 1, the ceramic pressure sensor 12 arranged in the measured object can generate pressure, when the pressure is transmitted to the front surface of the ceramic diaphragm, the diaphragm can generate tiny deformation, and the back surface of the ceramic diaphragm is printed with a thick film resistor to be connected into a Wheatstone bridge. Because the piezoresistance effect of the piezoresistor can make the electric bridge produce a voltage signal which is directly proportional to the pressure, high linearity and excitation voltage, so that the voltage signal can be collected by adopting a strain type sensor and can be automatically converted into test pressure, thereby realizing the test of the pressure applied to the position of the tested object corresponding to the ceramic pressure sensor 12. The ceramic pressure sensor 12 uploads the pressure signal to the acquisition module, and the pressure signal is transmitted to the processing equipment through the acquisition module.
Referring to fig. 6, the inclination measurement and force measurement integrated device provided in the embodiment of the present invention adopts an inclination measurement calculation principle (taking a group of measurement single-section calculations as an example): the real displacement of each measurement single section 1 can be obtained by taking the lowest point of a group of measurement single sections as a reference point and accumulating the points upwards in sequence, and the calculation process is shown in fig. 4, and the specific calculation process is as follows:
step one, displacement calculation of each measuring unit: the length of each measuring single section 1 in the same group is marked as L which is a fixed value; the inclination angle of each measuring unit 1 measured by the inclination angle sensor 11 is recorded as thetaiThen, according to the trigonometric function relationship, the respective horizontal displacement S of each measured single section 1 can be calculated1＝L×sinθ1。
Step two, inclinometry accumulation calculation: and calculating to obtain the displacement of each measuring single section 1 according to the length of each measuring single section 1 and the measured inclination angle of each measuring single section 1, and sequentially adding up by taking the lowest point as a reference point to obtain the real displacement of each pipe section. The displacement accumulation calculation formula is as follows: the true displacement of the position of the lowest measurement unit is: s1＝L×sinθ1(ii) a The true displacement of the position of the penultimate measurement unit is: s1+S2＝L×sinθ1+L×sinθ2(ii) a Until the position of the orifice is calculated, S1+S2+...+Si＝L×sinθ1+L×sinθ2+...+L×sinθi。
The control provided by the embodiment is based on the measurement principle, and realizes automatic acquisition, processing and calculation of data; the processing equipment is connected with the data acquisition module. Specifically, the processing device includes:
and the data acquisition unit is used for acquiring the inclination angle and pressure data of each group of the measuring single sections 1.
The data grouping unit acquires the inclination angle and pressure data of each measurement single section 1 in the same group from the data acquisition unit; and grouping the acquired inclination angle and pressure data, dividing the inclination angle and pressure data of the same measuring single section 1 into a group, and numbering the address of each measuring single section 1.
A calculating unit for acquiring each group of data from the data grouping unit according to Si＝L×sinθiCalculating the horizontal displacement of each measuring single section 1 in the same group, and storing the horizontal displacement of the measuring single section 1 in corresponding grouped data in a data grouping unit; and calculating the horizontal displacement S of the deep part of the landslide as S1+S2+……SiAnd stored.
Wherein, i is the address number of the measurement single section; siMeasuring the horizontal displacement of the single section for the ith section; l is the length of the measuring single section; thetaiMeasuring the inclination angle of the single section for the ith section; s1、S2……SiThe horizontal displacement of the individual segments is measured for each of the same group.
The display unit is used for acquiring each group of data from the data grouping unit and displaying the address number, the inclination angle, the horizontal displacement and the pressure data of each measuring single section 1 in real time; and acquiring the landslide deep part horizontal displacement S value from the calculation unit for real-time display.
The inclination measuring and force measuring integrated device provided by the embodiment of the invention at least has the following beneficial effects or advantages:
according to the inclination and force measurement integrated device provided by the embodiment of the invention, a plurality of measurement single sections are movably connected in series; an inclination angle sensor and a pressure sensor are arranged in the measuring single section; the inclination angle sensors in different measuring single sections are connected in series through a bus, and the inclination angle sensors are connected with the processing equipment through a data acquisition module; the pressure sensors in different measuring single sections are connected in series, and the pressure sensors are connected with the processing equipment through the data acquisition module. The inclination measurement and force measurement integrated device provided by the embodiment of the invention carries out measurement through a plurality of measurement single sections, the measurement single sections are tightly attached to a landslide, the inclination angle and pressure data of each measurement single section can be automatically measured, the data is automatically analyzed and processed, the deep horizontal displacement of the landslide and the pressure value borne by each measurement single section are obtained through calculation, the displacement distribution of a measured object and the stress distribution condition of the measured object can be monitored, the inclination measurement and force measurement integrated device can be used for monitoring the horizontal displacement and the horizontal thrust of the landslide in the depth direction of the landslide, and can also be used for monitoring the displacement and the stress of anti-slide piles, house buildings, bridges and other structures. The inclination measuring and force measuring integrated device provided by the embodiment of the invention can be applied to both indoor model tests and field monitoring, and can realize indoor and field dual purposes only by changing the rigidity and the size of the material of the measuring unit according to actual conditions. The inclination measuring and force measuring integrated device provided by the embodiment of the invention does not need to be provided with an inclination measuring pipe on site, so that the influence on a monitoring result due to the torsion of the inclination measuring pipe can be avoided, and the accuracy of the monitoring result is improved. The inclination measuring and force measuring integrated device provided by the embodiment of the invention can output digital signals and analog signals, and can realize data acquisition by adopting a universal acquisition instrument on the market, such as a campbell, a dataker and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides an inclinometry dynamometry integrated device which characterized in that includes: the device comprises a measuring single section, a wire connector, a bus and a data acquisition module; the measurement section includes: the device comprises a shell, a microprocessor, a power circuit, a communication circuit, a tilt angle sensor and a pressure sensor;
the power circuit, the communication circuit, the inclination angle sensor and the pressure sensor are arranged in the shell; the power circuit, the communication circuit, the inclination angle sensor and the pressure sensor are respectively connected with the microprocessor;
the measuring single sections are at least arranged into one group, and each group of measuring single sections comprises at least one measuring single section; a plurality of the measuring single sections in each group of measuring single sections are movably connected in series, and the communication circuits of two adjacent measuring single sections are connected;
and each group of the communication circuits of the measuring single sections are connected to the bus through a wire connector, and the bus is connected with the data acquisition module.
2. The integrated inclinometer and force measurement device according to claim 1, further comprising: a ball joint hinge; two adjacent measuring single sections in each group of measuring single sections are movably connected through the ball joint articulated elements.
3. The integrated inclinometer and force measurement device according to claim 1, further comprising: a processing device; the data acquisition module is connected with the processing equipment.
4. The integrated inclinometer and force measurement device according to claim 3, wherein the processing equipment comprises:
the data acquisition unit is used for acquiring the inclination angle and pressure data of each group of measuring single sections from the data acquisition module;
the data grouping unit acquires the inclination angle and pressure data of each measuring unit from the data acquisition unit; grouping the acquired inclination angle and pressure data, dividing the inclination angle and pressure data of the same measuring single section into a group, and numbering the address of each measuring single section;
a calculating unit for acquiring each group of data from the data grouping unit according to Si＝L×sinθiCalculating the horizontal displacement of each measuring single section in the same group, and storing the horizontal displacement of each measuring single section in the same group in the corresponding grouped data in the data grouping unit; and calculating the horizontal displacement S of the deep part of the landslide as S1+S2+……SiAnd storing;
wherein, the i is the address number of the measurement single section; said SiMeasuring the horizontal displacement of the single section for the ith section; l is the length of the measuring single section; theta is describediMeasuring the inclination angle of the single section for the ith section; said S1、S2……SiThe amount of horizontal displacement of each of the individual sections is measured for the same group.
5. The integrated inclinometer and force measurement device according to claim 4, further comprising:
the display unit is used for acquiring each group of data from the data grouping unit and displaying the address number, the inclination angle, the horizontal displacement and the pressure data of each measuring single section in real time; and acquiring the landslide deep horizontal displacement S value from the calculation unit for real-time display.
6. The integrated inclinometer and force measurement device according to any one of claims 1 to 5, wherein the inclination sensor is a triaxial acceleration sensor.
7. The integrated inclinometer and force measurement device according to any one of claims 1 to 5, wherein the pressure sensor is a ceramic pressure sensor.
8. The integrated inclinometer and force measurement device according to any one of claims 1 to 5, wherein the housing is of a stainless steel sheet-like structure.
9. The integrated inclinometer and force measurement device according to any one of claims 1 to 5, wherein the inclination sensor and the pressure sensor are fixed inside the shell by waterproof glue or mechanical connectors.
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| CN202010003363.6A CN111157044A (en) | 2020-01-02 | 2020-01-02 | Inclination and force measurement integrated device |
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Application publication date: 20200515 |