CN109084727B - Multi-dimensional monitoring device - Google Patents

Abstract

The invention discloses a multidimensional monitoring device, which comprises a plurality of monitor devices and a datum point device, wherein the monitor devices comprise a shell, a liquid bin and a gas bin are arranged in the shell, the liquid bin and the gas bin are separated by a partition plate, a PCB circuit main board is arranged in the gas bin, a liquid pressure sensing device is arranged in the middle of the bottom of the liquid bin, an elastic layer is sleeved on the surface of the liquid pressure sensor, a laser ranging device is arranged between the PCB circuit main board and the partition plate, the partition plate comprises an upper layer plate and a lower layer plate with the diameter slightly smaller than that of the upper layer plate, a pneumatic stress migration device is arranged on the inner wall of the shell opposite to that of the lower layer plate, and a radial migration device is arranged in the upper layer plate, so that the system self-problem can be automatically corrected and checked; a fully automatic unattended wireless sedimentation monitoring system; the construction maintenance flow is simplified, and the material and construction cost are reduced.

Description

Multi-dimensional monitoring device

Technical Field

The invention relates to the field of vertical sedimentation, in particular to a multidimensional monitoring device.

Background

The vertical settlement displacement is an important safety physical quantity in the engineering fields of foundation pits, highways, railways, subways, underground engineering and the like, and the settlement deformation can directly reflect potential safety hazards of engineering structures and geological structures no matter in the construction or operation period of the engineering, so that the settlement monitoring has an important position in the safety field. On the other hand, settlement monitoring of engineering or geological structures is often accompanied by other deformations, such as horizontal displacement, inclined displacement and the like, and in the safety monitoring process, various change data are needed to be mutually verified, and the development trend and the safety level of the deformations are comprehensively judged.

The prior surface displacement monitoring method mainly has the following two problems:

firstly, the traditional method which relies on an optical surveying and mapping instrument still exists generally, and the optical surveying and mapping instrument has the advantages of mature technology, high precision, flexible measuring point arrangement, but also has the defects of dependence on technical personnel operation, low monitoring frequency, atmospheric environment restriction and the like;

secondly, an informationized unattended monitoring system based on electronic sensing, automatic measurement and control and the internet of things technology is adopted, but the problems that the measured physical quantity is single, the construction is complex, the measuring precision is greatly interfered by the environment or other construction operations and the like are generally existed.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a multi-dimensional monitoring device which can effectively solve the problems of the background technology.

The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a multidimensional monitoring device, includes a plurality of monitor device and datum point device, the monitor device includes the casing, the inside liquid storehouse and the gas storehouse of being provided with of casing, just separate through the baffle between liquid storehouse and the gas storehouse, the inside PCB circuit motherboard that is provided with of gas storehouse, be provided with liquid pressure sensing device in the middle of the liquid storehouse bottom, liquid pressure sensor surface cover is equipped with the elastic layer, be provided with laser rangefinder between PCB circuit motherboard and the baffle, the baffle includes upper plate and the lower plate that the diameter is slightly less than the upper plate, is provided with atmospheric pressure stress offset device on the shells inner wall for the lower plate, the inside radial offset device that is provided with of upper plate.

Further, the liquid pressure sensing device comprises a pressure sensor, a straight-through pipe penetrating through the shell is arranged at the bottom of the pressure sensor, an L-shaped pipe is connected to a pipe body of the straight-through pipe located between the upper layer plate and the lower layer plate, the tail end of the L-shaped pipe penetrates through the upper layer plate and extends into the liquid bin, a second valve and a third valve are respectively arranged at the upper part and the lower part of the inside of the joint of the straight-through pipe and the L-shaped pipe, and a first valve is arranged in the pipe body of the L-shaped pipe located in the partition plate.

Further, the liquid bin comprises an oval cavity and liquid connecting pipes arranged on two sides of the oval cavity, a transparent window is arranged at the top of the oval cavity and embedded into the top surface of the shell, an exhaust plug A is arranged on the transparent window, an exhaust plug B is arranged on the side face of the oval cavity, an annular temperature sensor is arranged at the joint of the liquid connecting pipes and the oval cavity, a transition pipe is connected to the liquid connecting pipes on two sides of the oval cavity, and a one-way valve is arranged at the joint of the transition pipe and the liquid connecting pipes.

Further, laser rangefinder includes the range finding head to and the printing opacity ring on the casing that sets up between top plate and bottom plate, the distancer bottom is connected with the pivot that runs through bottom plate and PCB circuit motherboard, the cover is equipped with the uide bushing in the pivot, uide bushing fixed mounting is on the PCB circuit board, install the angle code wheel on the axle body that the pivot is located the bottom of PCB circuit motherboard, the bottom of pivot is connected with driving motor.

Further, the radial offset device comprises an outer ring arranged on the inner wall of the shell, an inner ring is arranged in the middle of the outer ring, the outer ring and the inner ring are connected together through four guide rods, a sliding sleeve is sleeved on each guide rod, springs are sleeved on rod bodies of the guide rods at two ends of the sliding sleeve, resistance induction sheets are arranged at the joints of the springs and the inner wall of the outer ring, and the resistance induction sheets are electrically connected to the PCB.

Further, the pneumatic stress deviation device comprises a spring groove arranged on the shell, the edge of the lower layer plate is embedded into the spring groove, the top and the bottom of the edge of the lower layer plate are connected to the inner top and the bottom of the spring groove through annular disc springs, and an annular pressure sensor is arranged at the joint of the annular disc springs and the lower layer plate.

Further, the oval cavity in the plurality of monitor devices is connected together through the communicating pipe, and the communicating pipe is connected on the liquid takeover of oval cavity, oval cavity is connected with datum point device through the communicating pipe, datum point device includes the jar body and sets up the drive arrangement in jar internal bottom, the drive arrangement top is provided with sealed piston, be provided with on the jar body and attach the pressure pipe, just communicating pipe and attach the pressure pipe to link together.

Further, the PCB circuit main board is integrated with an STC single chip microcomputer, an air temperature sensor, a double-shaft inclinometer, an atmospheric pressure sensor, a three-shaft accelerator and a wireless communication module, the bottom of the driving device is provided with a main circuit board, and the main circuit board is integrated with a wireless communication module used for connecting a monitor device and an MCU processor for data processing.

Further, the top of the tank body is provided with an air pressure hole, a silica gel flap valve is arranged in the air pressure hole, and a filter fiber layer is arranged in the air pressure hole at the top of the silica gel flap valve.

Compared with the prior art, the invention has the beneficial effects that:

the differential pressure type hydrostatic level gauge precision is corrected, so that the settlement monitoring precision is improved; the same-point multi-parameter monitoring meets engineering monitoring requirements, including vertical sedimentation, biaxial inclination and horizontal bidirectional displacement; the system can automatically correct and check the precision, and find out the problems of the system; a fully automatic unattended wireless sedimentation monitoring system; the construction maintenance flow is simplified, the material and construction cost are reduced, the full-automatic unattended measurement is realized, the semi-automatic periodic inspection site reading is realized, the inspection personnel card punch device can be used, the volume is small, the integration level is high, the existing informatization network can be conveniently accessed, the rapid transition from the manual test to the full-automatic unattended test is realized, the original sub-item monitoring repeated cost investment can be changed, the manual investment and the labor intensity are greatly reduced, and the measurement efficiency is improved.

Drawings

FIG. 1 is a schematic view of a front end cross-sectional structure of a monitor device according to the present invention;

FIG. 2 is a schematic view of a rear end cross-sectional structure of the monitor device of the present invention;

FIG. 3 is a schematic view of a datum point device according to the present invention;

FIG. 4 is a schematic view of a radial offset device according to the present invention;

FIG. 5 is a schematic diagram of a pneumatic stress deflection device according to the present invention;

FIG. 6 is a schematic block diagram of an integrated module on a PCB circuit board of the present invention;

fig. 7 is a schematic perspective view of a monitor device according to the present invention.

Reference numerals in the drawings:

1-a monitor device; 2-datum point means; 3-a separator; 4-a PCB circuit main board; 5-a liquid pressure sensing device; 6-an elastic layer; 8-an air pressure stress deflection device; 9-radial offset means; 10-an air temperature sensor; 11-biaxial inclinometer; 12-atmospheric pressure sensor; 13-a three-axis accelerator; 14-a wireless communication module; 15-STC singlechip;

101-a housing; 102-a liquid bin; 103-a gas bin;

1021-oval cavity; 1022-liquid take-over; 1023-transparent window; 1024-exhaust bolts a; 1025-exhaust plug B; 1026-annular temperature sensor; 1027-transition pipe;

201-a tank body; 202-a driving device; 203-sealing the piston; 204-attaching a pressure tube; 205-a main circuit board; 206-air pressure holes; 207-a silicone flap valve; 208-a layer of filter fibers;

301-upper plate; 302-lower plate;

501-a pressure sensor; 502-through pipe; 503-L-shaped tube; 504-a second valve; 505-third valve; 506-a first valve;

701-a ranging head; 702-a light-transmitting ring; 703-a spindle; 704, a guide sleeve; 705-angle code wheel; 706-a drive motor;

801-spring grooves; 802-annular disc springs; 803-annular pressure sensor;

901-outer ring; 902-an inner ring; 903-guide bar; 904-sliding sleeve; 905-a spring; 906-resistive sensing pads.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

As shown in fig. 1 to 7, the invention provides a multidimensional monitoring device, which comprises a plurality of monitor devices 1 and reference point devices 2, wherein each monitor device 1 comprises a shell 101, a liquid bin 102 and a gas bin 103 are arranged in the shell 101, the liquid bin 102 and the gas bin 103 are separated by a partition plate 3, a PCB circuit motherboard 4 is arranged in the gas bin 103, a liquid pressure sensing device 5 is arranged in the middle of the bottom of the liquid bin 103, an elastic layer 6 is sleeved on the surface of the liquid pressure sensing device 5, a laser ranging device is arranged between the PCB circuit motherboard 4 and the partition plate 3, the partition plate 3 comprises an upper layer 301 and a lower layer 302 with a diameter slightly smaller than that of the upper layer 301, a pneumatic stress deviation device 8 is arranged on the inner wall of the shell 101 opposite to the lower layer 301, and a radial deviation device 9 is arranged in the upper layer 301.

The datum point device 2 comprises a tank 201 and a driving device 202 arranged at the bottom in the tank 201, a sealing piston 203 is arranged at the top of the driving device 202, an additional pressure pipe 204 is arranged on the tank 201, and the additional pressure pipe 204 is connected with a communicating pipe.

The datum point device 2 and the plurality of monitor devices 1 are connected into an annular passage through the communicating pipe to form a monitoring structure of the multi-dimensional monitor device, the datum point device 2 is used for setting a monitoring datum, and the change of the monitoring datum influences the data acquisition of the monitor devices 1, so that the settlement of the area acquired by each monitor device 1 is eliminated, and the accuracy of acquired parameters is compensated.

Further, the liquid bin 102 includes an oval cavity 1021 and liquid connection pipes 1022 disposed on two sides of the oval cavity 1021, a transparent window 1023 is disposed on the top of the oval cavity 1021, the transparent window 1023 is embedded into the top surface of the housing 101, an exhaust plug a1024 is disposed on the transparent window 1023, an exhaust plug B1025 is disposed on the side surface of the housing 101, an annular temperature sensor 1026 is disposed at the connection position of the liquid connection pipes 1022 and the oval cavity 1021, a transition pipe 1027 is connected to the liquid connection pipes 1022 on two sides of the oval cavity 1021, and a one-way valve is disposed at the connection position of the transition pipe 1027 and the liquid connection pipes 1022.

Simultaneously, the oval cavity 1021 and the tank 201 are connected together by the principle of the communicating vessel, and the liquid level height in the tank 201 is equally divided by a plurality of oval cavities 1021, so that the situations of liquid overflow of the liquid storage tank and liquid missing of a certain measuring device caused by a direct liquid level method and a buoyancy method during measuring sedimentation are avoided, and the measuring failure of the monitor device 1 is avoided. .

The vent bolt A1024 and the vent bolt B1025 in the invention can manually discharge interference gas in the interior when obvious abnormality occurs in the liquid level height of the oval cavity 1021 in the monitor device 1, thereby ensuring the stability of the air pressure in the monitor device.

In the invention, the datum point device 2 is used as a data reference of a multidimensional monitoring device, the monitoring device 1 is subjected to data acquisition adjustment and provides a calculation reference of static pressure level, when the monitoring device 1 is used for measuring, the datum point device 2 is used for injecting fluid with the same level into the liquid bin 102, the environment of the monitoring geographic position where different liquid bins 102 are located, namely, the vertical sedimentation is changed along with the time, the height of the medium fluid level of the liquid bin 102 is correspondingly changed, at the moment, the liquid pressure sensing device 5 in the liquid bin 102 is used for acquiring the pressure data change of the fluid in the liquid bin 102, and the detection data of the liquid pressure sensing devices 5 of a plurality of monitoring devices 1 are combined, so that the sedimentation condition of a certain monitoring device 1 is rapidly calculated.

The liquid pressure sensing device 5 in the invention comprises a pressure sensor 501, a straight-through pipe 502 penetrating through the shell 101 is arranged at the bottom of the pressure sensor 501, an L-shaped pipe 503 is connected to the pipe body of the straight-through pipe 502 positioned between the upper layer plate 301 and the lower layer plate 302, the tail end of the L-shaped pipe 503 penetrates through the upper layer plate 301 and extends into the liquid bin 102, a second valve 504 and a third valve 505 are respectively arranged at the upper part and the lower part of the inner part of the joint of the straight-through pipe 502 and the L-shaped pipe 503, and a first valve 506 is arranged in the pipe body of the L-shaped pipe 503 positioned in the partition plate 3.

The working principle of the liquid pressure sensing device 5 is: the top of the pressure sensor 501 contacts with fluid in the oval cavity 1021 in the liquid bin 102, during normal operation, the second valve 504 is opened to be in communication with the atmosphere, the first valve 506 and the third valve 505 are closed, when the data measured by the pressure sensor 5 is the liquid pressure, and calibration is needed, the second valve 504 and the third valve 505 are closed, the first valve 506 is opened, so that the upper surface and the lower surface of the pressure sensor 5 are in communication, when the pressure value measured by the liquid pressure sensor 5 is 0, if the pressure value is not zero, the pressure sensor 5 has measurement errors, the error data is detected and stored in a storage unit integrated on the PCB circuit board 3, the first valve 506 is closed, the third valve 505 is opened to release the fluid passing through the first valve 506 to the outside of the monitor, and then the third valve 505 is closed to be restored to the initial state.

Wherein elastic layer 6 suit is on pressure sensor 501, just can set up metal resistance strain gauge in the elastic layer 6, through metal resistance strain gauge, monitor the influence of temperature to pressure sensor 501's detection data, elastic layer 6 can adopt simultaneously to have the thermal-insulated material of inlayer for pressure sensor 501 only receives the influence of fluid temperature, and the factor that will produce the error is single.

The oval cavity 1021 in the monitor device 1 is connected with the datum point device 2, the tank 201 in the datum point device 2 and the oval cavity 1021 are connected together through the principle of a communicating vessel, the liquid level is reversely calculated by utilizing the relation between the liquid pressure and the liquid volume through the data acquisition of the pressure sensor 501, or the internal pressure in the oval cavity is directly calculated by the detection data of the pressure sensor 501, so that the static pressure level in the oval cavity 1021 is obtained in two ways, the vertical sedimentation parameters in the area are more intuitively and accurately reflected, meanwhile, sedimentation data obtained by utilizing the change of the liquid level at the position of the liquid pressure and the liquid volume reversely calculated and sedimentation calculation data obtained by the pressure sensor 501 can be mutually checked, and the reliability of the monitoring data is improved.

The laser ranging device comprises a ranging head 701 and a light-transmitting ring 702 arranged on a shell 101 between an upper layer plate 301 and a lower layer plate 302, wherein the bottom of the ranging device 701 is connected with a rotating shaft 703 penetrating through the lower layer plate 302 and a PCB circuit main board 4, a guide sleeve 704 is sleeved on the rotating shaft 703, the guide sleeve 704 is fixedly arranged on the PCB circuit board 4, the rotating shaft 703 is positioned on the shaft body at the bottom of the PCB circuit main board 4, an angle code disc 705 is arranged on the bottom of the rotating shaft 703 and is connected with a driving motor 706, a rotating mechanism of the driving motor 706 is fixed on the shell 101 and is controlled by the MCU to realize horizontal rotation, the angle code disc 705 is fixed with the rotating shaft 703 of the driving motor 705, the ranging device 701 is connected with the rotating shaft 703 of the driving motor, a luminous tube is arranged on the PCB circuit main board 4, the angle code disc 705 is irradiated under the control of the MCU, and the angle code disc 705 and the luminous tube jointly form a high-precision horizontal angle measuring device; the MCU controls the driving motor 706 to rotate, and the angle code disc 705 and the range finder 701 synchronously rotate; MCU sends the range finding instruction to the laser range finder and reads distance value, code wheel angle value, and range finding laser of range finder 701 sees through the printing opacity ring 702 on the casing and measures and the reflection point distance of presetting in distance away, uses a range finder 701 to realize the distance measurement of arbitrary multiple spot in horizontal direction, uses a plurality of horizontal angle values of presetting in the inside memory of equipment, can realize a plurality of horizontal distance measurement of appointed angle.

The radial offset device 9 comprises an outer ring 901 arranged on the inner wall of the shell 101, an inner ring 902 is arranged in the middle of the outer ring 901, the outer ring 901 and the inner ring 902 are connected together through four guide rods 903, a sliding sleeve 904 is sleeved on the guide rods 903, a spring 905 is sleeved on the rod bodies of the guide rods 903 at the two ends of the sliding sleeve 904, a resistance sensing piece 906 is arranged at the joint of the spring 905 and the inner wall of the outer ring 901, and the resistance sensing piece 906 is electrically connected to the PCB 4.

When the installation position of the monitor device 1 changes in the angle inclination state, the initial position of the sliding sleeve 904 at the middle position of the guide rod 903 is reversely deviated, so that the four sliding sleeves 904 correspondingly stretch and compress the springs, the resistance sensing piece 906 acquires the compression and stretching force of each spring 905 and transmits data to the PCB circuit main board 4, the data are analyzed through the STC singlechip 15 integrated on the PCB circuit main board 4, so that the inclination angle and state of the shell are obtained, and error compensation and elimination are provided when vertical settlement is calculated, so that effective vertical settlement data are obtained;

meanwhile, an air temperature sensor 10, a double-shaft inclinometer 11, an atmospheric pressure sensor 12, a three-shaft accelerator 13 and a wireless communication module 14 are integrated on the PCB circuit board 4, a main circuit board 205 is arranged at the bottom of the driving device 202, and an MCU processor for connecting the wireless communication module 14 in the monitor device 1 and processing data is integrated on the main circuit board 205, wherein the wireless communication module 14 comprises three short-distance wireless communication technologies of mature Wi-Fi technology, bluetooth technology and ZigBee technology and is used for being in wireless connection with the monitor device 1.

The pneumatic stress deviation device 8 comprises a spring groove 801 arranged on the shell 101, the edge of the lower layer plate 302 is embedded into the spring groove 801, the top and the bottom of the edge of the lower layer plate 302 are connected to the inner top and the bottom of the spring groove 801 through annular disc springs 802, and an annular pressure sensor 803 is arranged at the joint of the annular disc springs 802 and the lower layer plate 302.

The oval cavities 1021 in the plurality of monitor devices 1 are connected together by a communicating pipe, and the communicating pipe is connected to the liquid connection pipe 1022 of the oval cavity 1021, and the oval cavity 1021 is connected with the fiducial point device 2 by the communicating pipe.

The top of the tank 201 is provided with the air pressure hole 206, the inside of the air pressure hole 206 is provided with the silica gel flap valve 207, the inside of the air pressure hole 206 at the top of the silica gel flap valve 207 is provided with the filter fiber layer 208, when the self-calibration of the monitor device 1 and the datum point device 2 is carried out, the driving device 202 drives the piston to change the liquid level position in the tank 201, meanwhile, interference air pressure in the inside is discharged through the air pressure hole 206, air pressure generated by temperature change in the long time is also discharged and sucked through automatic opening and closing of the silica gel flap valve 207 of the air pressure hole 206, the air pressure in the monitor device 1 and the datum point device 2 is kept stable, and oval cavity 1021 liquid level change caused by atmospheric pressure is reduced.

It is further noted that the driving device 202 in the present invention is essentially a screw drive assembly, and may also be a hydraulic drive assembly, which moves the fluid inside the tank up and down, thereby changing the monitored pressure inside the datum device.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (4)

1. A multi-dimensional monitoring device comprising a plurality of monitor devices (1) and reference point devices (2), characterized in that: the monitor device (1) comprises a shell (101), a liquid bin (102) and a gas bin (103) are arranged in the shell (101), the liquid bin (102) and the gas bin (103) are separated by a partition plate (3), a PCB circuit main board (4) is arranged in the gas bin (103), a liquid pressure sensing device (5) is arranged in the middle of the bottom of the liquid bin (102), an elastic layer (6) is sleeved on the surface of the liquid pressure sensing device (5), a laser ranging device is arranged between the PCB circuit main board (4) and the partition plate (3), the partition plate (3) comprises an upper layer plate (301) and a lower layer plate (302) with the diameter slightly smaller than that of the upper layer plate (301), a pneumatic stress shifting device (8) is arranged on the inner wall of the shell (101) corresponding to the lower layer plate (302), and a radial shifting device (9) is arranged in the upper layer plate (301).

The liquid pressure sensing device (5) comprises a pressure sensor (501), a straight-through pipe (502) penetrating through the shell (101) is arranged at the bottom of the pressure sensor (501), an L-shaped pipe (503) is connected to a pipe body of the straight-through pipe (502) located between the upper layer plate (301) and the lower layer plate (302), the tail end of the L-shaped pipe (503) penetrates through the upper layer plate (301) to extend into the liquid bin (102), a second valve (504) and a third valve (505) are respectively arranged at the upper part and the lower part of the inside of the joint of the straight-through pipe (502) and the L-shaped pipe (503), and a first valve (506) is arranged in the pipe body of the L-shaped pipe (503) located in the partition plate (3);

the liquid bin (102) comprises an oval cavity (1021) and liquid connection pipes (1022) arranged on two sides of the oval cavity (1021), a transparent window (1023) is arranged at the top of the oval cavity (1021), the transparent window (1023) is embedded into the top surface of the shell (101), an exhaust plug A (1024) is arranged on the transparent window (1023), an exhaust plug B (1025) is arranged on the side surface of the shell (101) of the oval cavity (1021), an annular temperature sensor (1026) is arranged at the joint of the liquid connection pipes (1022) and the oval cavity (1021), a transition pipe (1027) is connected on the liquid connection pipes (1022) arranged on two sides of the oval cavity (1021), and a one-way valve is arranged at the joint of the transition pipe (1027) and the liquid connection pipes (1022);

the radial offset device (9) comprises an outer ring (901) arranged on the inner wall of the shell (101), an inner ring (902) is arranged in the middle of the outer ring (901), the outer ring (901) and the inner ring (902) are connected together through four guide rods (903), a sliding sleeve (904) is sleeved on the guide rods (903), a spring (905) is sleeved on the rod bodies of the guide rods (903) at the two ends of the sliding sleeve (904), and a resistance induction sheet (906) is arranged at the joint of the spring (905) and the inner wall of the outer ring (901), and the resistance induction sheet (906) is electrically connected to a PCB circuit main board (4);

the oval cavity (1021) in the plurality of monitor devices (1) is connected together through a communicating pipe, the communicating pipe is connected to a liquid connecting pipe (1022) of the oval cavity (1021), the oval cavity (1021) is connected with a datum point device (2) through the communicating pipe, the datum point device (2) comprises a tank body (201) and a driving device (202) arranged at the inner bottom of the tank body (201), a sealing piston (203) is arranged at the top of the driving device (202), an additional pressure pipe (204) is arranged on the tank body (201), and the communicating pipe and the additional pressure pipe (204) are connected together;

the top of the tank body (201) is provided with an air pressure hole (206), a silica gel flap valve (207) is arranged in the air pressure hole (206), and a filter fiber layer (208) is arranged in the air pressure hole (206) at the top of the silica gel flap valve (207);

the driving device (202) drives the piston to change the liquid level position in the tank body (201), interference compressed air in the tank body (201) is discharged through the air pressure hole (206), and air pressure generated by temperature change in the tank body (201) is automatically opened through the silica gel flap valve (207) of the air pressure hole (206) to maintain the air pressure in the monitor device (1) and the reference point device (2) to be stable.

2. A multidimensional monitoring device as claimed in claim 1, wherein: the laser ranging device comprises a ranging head (701) and a light-transmitting ring (702) arranged on a shell (101) between an upper layer plate (301) and a lower layer plate (302), wherein the bottom of the ranging head (701) is connected with a rotating shaft (703) penetrating through the lower layer plate (302) and a PCB circuit main board (4), a guide sleeve (704) is sleeved on the rotating shaft (703), the guide sleeve (704) is fixedly arranged on the PCB circuit main board (4), an angle code disc (705) is arranged on a shaft body of the bottom of the rotating shaft (703) positioned on the PCB circuit main board (4), and a driving motor (706) is connected to the bottom of the rotating shaft (703).

3. A multidimensional monitoring device as claimed in claim 1, wherein: the pneumatic stress deviation device (8) comprises a spring groove (801) arranged on the shell (101), the edge of the lower layer plate (302) is embedded into the spring groove (801), the top and the bottom of the edge of the lower layer plate (302) are connected to the inner top and the bottom of the spring groove (801) through annular disc springs (802), and an annular pressure sensor (803) is arranged at the joint of the annular disc springs (802) and the lower layer plate (302).

4. A multidimensional monitoring device as claimed in claim 1, wherein: the PCB circuit main board (4) is integrated with an STC singlechip (15), an air temperature sensor (10), a double-shaft inclinometer (11), an atmospheric pressure sensor (12), a three-shaft accelerator (13) and a wireless communication module (14), the bottom of the driving device (202) is provided with a main circuit board (205), and the main circuit board (205) is integrated with the wireless communication module (14) used for connecting the monitor device (1) and an MCU processor for data processing.