Engineering displacement monitoring system and monitoring method

Abstract

The present invention provides an engineering displacement monitoring system and method, comprising a base located within a monitoring area and a laser transmitter located outside the monitoring area. The base is provided with a connecting seat on top, and a target plate is provided on top of the connecting seat; the target plate is used to receive the light spot emitted by the laser transmitter; a dual-axis inclinometer is provided within the base; a battery and a controller are provided within the base, and the battery is externally connected to a solar panel; an air pressure, temperature, and humidity sensor is provided on the outside of the base; the controller is signal-connected to the air pressure, temperature, and humidity sensor, the dual-axis inclinometer, the target plate, and the laser transmitter; and the battery is electrically connected to the controller, the air pressure, temperature, and humidity sensor, the dual-axis inclinometer, the target plate, and the laser transmitter. During the monitoring process, the present invention does not require monitoring personnel to follow the equipment to a fixed workstation, thereby improving the convenience of monitoring and ensuring the safety of monitoring personnel. Furthermore, the present invention can reduce the impact of wind on the equipment, reducing the probability of the equipment being blown crooked by the wind, and ensuring the accuracy of monitoring.

Description

Technical Field

[0001] The present invention relates to the field of displacement monitoring, and in particular to an engineering displacement monitoring system and a monitoring method. Background Art

[0002] Embankment engineering refers to the engineering process in which earth and stone materials from the excavated road section or fill materials from other places are placed on the embankment base in accordance with certain construction techniques and standards to form an embankment structure higher than the original ground during road construction.

[0003] During the construction of fill embankment projects, the stability, deformation and displacement of the embankment need to be monitored. According to the requirements of the specifications and existing technologies, high-precision total stations are generally used for observation.

[0004] Stability deformation and displacement monitoring is also suitable for monitoring foundation pit slopes in construction, monitoring high and steep slopes in open-pit mining, and monitoring of geological disaster control areas.

[0005] The existing technology for stability deformation and displacement monitoring places high demands on instruments. Errors in instrument installation and meteorological errors increase the probability of distortion in the monitoring data. In addition, the observation period is long, requiring fixed observers and ensuring the same observation weather as much as possible is difficult to achieve, and the timeliness of the data is also difficult to guarantee. Summary of the Invention

[0006] The main purpose of the present invention is to provide an engineering displacement monitoring system and a monitoring method to solve the problems of large monitoring errors and difficult operation in the prior art.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] An engineering displacement monitoring system includes a base located in a monitoring area and a laser emitter located outside the monitoring area, a connecting seat is provided on the top of the base, and a target plate is provided on the top of the connecting seat;

[0009] The target plate is used to receive the light spot emitted by the laser transmitter;

[0010] A dual-axis inclinometer is installed in the base to read the target's tilt angle at any time.

[0011] In the preferred solution, a battery and a controller are provided in the base, and the battery is externally connected to a solar panel;

[0012] There are air pressure, temperature and humidity sensors on the outside of the base;

[0013] The controller is connected to the air pressure, temperature and humidity sensor, the dual-axis inclinometer, the target plate and the laser transmitter signal;

[0014] The battery is electrically connected to the controller, the air pressure, temperature and humidity sensor, the dual-axis inclinometer, the target plate and the laser transmitter.

[0015] In a preferred embodiment, the target plate includes a bottom plate connected to the connecting seat, a vertical plate fixedly connected to the side of the bottom plate, and a terminal block provided on the side of the vertical plate; the bottom plate and the vertical plate are combined to form a T shape;

[0016] A plurality of fixing sleeves are provided on the top of the bottom plate, and the fixing sleeves are fixedly connected by connecting rods. The bottom fixing sleeve is fixedly connected to the bottom plate by a connecting rod;

[0017] There are gaps between adjacent fixing sleeves and gaps between adjacent connecting rods;

[0018] A mounting hole is provided in the fixing sleeve, a mounting seat is provided in the mounting hole, a plurality of photodiodes are provided on one end surface of the mounting seat, and the other end surface of the mounting seat is connected to the wiring block via a connecting wire;

[0019] Photodiodes are arranged in a matrix.

[0020] In a preferred solution, a plurality of plug holes are provided on the top of the connecting seat, and plug posts are provided on the bottom of the vertical plate and the bottom of the bottom plate, and the plug posts are adapted to the plug holes.

[0021] In a preferred solution, a wire outlet hole is provided in the connection seat, a support sleeve is provided in the base, a wire through hole is provided in the support sleeve, and the connection lines between the terminal block and the battery and the controller are passed through the wire through hole and the wire outlet hole.

[0022] In a preferred embodiment, a protective shell is provided at the bottom end of the vertical plate, the protective shell covers the top end of the outlet hole, and a sealing door is provided on the side of the protective shell;

[0023] The connection lines between the terminal block, the battery and the controller are provided with terminal heads, which are located inside the protective shell;

[0024] The terminal block is a plug-in terminal block.

[0025] In the preferred solution, the target plate is provided with a dust removal mechanism;

[0026] The dust removal mechanism includes an air hole provided inside the base, an air inlet pipe is provided on the top of the base, and the air inlet pipe is connected to one side of the air hole;

[0027] A fan is provided in the air inlet pipe, and a filter is provided on the top of the air inlet pipe;

[0028] The top of the base is provided with several connecting tubes, which are connected to the other side of the air hole;

[0029] A plug-in tube is provided in the connecting tube, and a horizontal tube is provided on the top of the plug-in tube. The length of the horizontal tube is adapted to the length of the target plate.

[0030] The bottom of the target plate is provided with an air outlet plate, the length of which is not less than that of the target plate. The bottom of the air outlet plate is connected to the horizontal pipe through several connecting pipes, and the top of the air outlet plate is provided with an air outlet slot, which is connected to the connecting pipe.

[0031] In a preferred solution, the base is provided with a number of support frames, which are used for auxiliary support;

[0032] The outer periphery of the base is provided with a plurality of connecting grooves, and the support frame includes a supporting plate rotated in the connecting groove, and one end of the supporting plate close to the bottom end of the base is hinged to the base;

[0033] The support plate is provided with a placement groove, and a plurality of limit blocks are provided in the placement groove;

[0034] A movable rod is rotated in the connecting groove, one end of the movable rod is rotatably connected to the base through a rotating shaft, and the size of the movable rod is smaller than the placement groove;

[0035] The supporting plate is provided with a groove, the size of the groove is larger than the rotating shaft, and when the supporting plate is located in the connecting groove, the movable rod is located in the groove.

[0036] An engineering displacement monitoring system includes a target module, a laser module, a control module and a dust removal module;

[0037] The target module includes a tilt detection module, several receiving modules and a temperature and humidity monitoring module; the receiving module includes a photodiode for receiving light signals; the temperature and humidity monitoring module includes a pressure temperature and humidity sensor located on the base for monitoring the temperature and humidity of the measured area; the tilt detection module includes a dual-axis inclinometer for monitoring the tilt angle of the target module;

[0038] The laser module includes a transmitting module and a temperature and humidity monitoring module; the transmitting module includes a laser transmitter for transmitting light signals; the temperature and humidity monitoring module includes an air pressure, temperature and humidity sensor provided on the laser transmitter for monitoring the temperature and humidity of the area where the laser module is located;

[0039] The control module is connected to the target module, laser module and dust removal module. The receiving module receives the light signal and transmits the signal to the control module. The control module determines the position of the light signal based on the received signal; the control module controls the opening and closing of the laser module and dust removal module.

[0040] The control module includes a timing module, a signal transmission module and a storage module. The timing module is used to control the opening and closing time of the laser module, the signal transmission module is used to transmit and receive monitoring signals and control signals, and the storage module is used to store data. The control module is a controller, which is located in the base.

[0041] The dust removal module comprises a dust removal mechanism, which is connected to the target plate and is used for removing dust from the receiving module.

[0042] A method for monitoring engineering displacement includes the following steps:

[0043] S1. Set up a base for fixing the target plate in the monitored area;

[0044] Bury a foundation for fixing the laser transmitter outside the deformation area of ​​the monitored area;

[0045] S2. Place the target plate on the base, with the front of the target plate parallel to the horizontal displacement direction to be monitored, and then return the dual-axis inclinometer to zero after power is turned on;

[0046] S3: Place the laser transmitter, ensure that the laser is irradiated on the center of the target plate, and lock the transmitter position;

[0047] S4: Select the best measurement time of the day to turn on the laser transmitter, illuminate the laser spot on the target plate to activate the photodiode on the target plate, calculate the image center coordinates based on the activated photodiode, and zero to establish the initial target plate coordinate axis, and record the time, air pressure, temperature and humidity;

[0048] S5: Set the laser emitter timing irradiation time, and the target plate records the new spot coordinates and dual-axis inclinometer tilt angle obtained each time it is activated;

[0049] S6: Calculate the displacement according to the target plate displacement value and the tilt value.

[0050] In a preferred solution, in S6, the displacement includes the horizontal displacement L and the settlement Z;

[0051] Subtract the two nearest coordinates recorded by the target plate to obtain the target displacement linear distance S i , the dual-axis inclinometer records the transverse tilt angle α xi and the longitudinal tilt angle α zi ; Calculate the horizontal displacement L and settlement Z:

[0052] ;

[0053] ;

[0054] Where i=1, 2, 3...n, represents the nth record, T i is the temperature, H i is humidity, k T is the temperature influence coefficient, k H is the humidity influence coefficient, T0 is the initial temperature, and H0 is the initial humidity.

[0055] The present invention provides an engineering displacement monitoring system and a monitoring method. By adopting the above scheme, the following beneficial effects are achieved:

[0056] 1. During the monitoring process, the monitoring personnel do not need to follow the equipment to a fixed position, and can be used remotely, thereby improving the convenience of monitoring and ensuring the safety of the monitoring personnel.

[0057] 2. It can reduce the impact of wind on the equipment, reduce the probability of the equipment being blown crooked by the wind, and ensure the accuracy of monitoring.

[0058] 3. During the monitoring process, the dust on the surface of the photodiode can be processed to prevent the dust from affecting the monitoring of the photodiode and ensure the accuracy of the monitoring results.

[0059] 4. Provide auxiliary support to the equipment during monitoring to ensure the stability of the equipment during operation.

[0060] 5. The base and target plate are detachably connected, so they do not need to be transported as a whole, which increases the convenience of transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] The present invention will be further described below with reference to the accompanying drawings and examples:

[0062] Figure 1 It is a structural schematic diagram of an engineering displacement monitoring system of the present invention;

[0063] Figure 2 It is a structural schematic diagram of an engineering displacement monitoring system of the present invention;

[0064] Figure 3 It is a partial structural enlarged schematic diagram of the target plate of the present invention;

[0065] Figure 4 It is an enlarged schematic diagram of the structure of the base of the present invention;

[0066] Figure 5 It is an enlarged schematic diagram of the structure of the dust removal mechanism of the present invention;

[0067] Figure 6 It is a top view of an engineering displacement monitoring system of the present invention;

[0068] Figure 7 yes Figure 6 Stepped cross-sectional view at AA in the middle;

[0069] Figure 8 It is an enlarged schematic diagram of the structure of the support frame of the present invention;

[0070] Figure 9 It is a schematic diagram of an engineering displacement monitoring system of the present invention.

[0071] In the picture:

[0072] Base 1, battery 101, dual-axis inclinometer 102, controller 103, support sleeve 104, wire hole 105, air pressure, temperature and humidity sensor 106, connecting seat 2, wire outlet hole 201, plug hole 202, target plate 3, bottom plate 301, riser 302, terminal block 303, fixing sleeve 304, connecting rod 305, mounting hole 306, mounting seat 307, photodiode 308, protective shell 311, sealing door 312, dust removal mechanism 4, air inlet pipe 401, filter 402, connecting tube 403, plug-in pipe 404, horizontal pipe 405, air outlet plate 406, connecting pipe 407, air outlet slot 408, air hole 409, fan 410, support frame 5, connecting slot 501, support plate 502, placement slot 503, limit block 504, movable rod 505, groove 506, rotating shaft 507. DETAILED DESCRIPTION

[0073] Example 1:

[0074] like Figure 1 、 2 As shown in Figures , 4, 6 and 7, an engineering displacement monitoring system includes a base 1 located in the monitoring area and a laser transmitter located outside the monitoring area, a connecting seat 2 is provided on the top of the base 1, and a target plate 3 is provided on the top of the connecting seat 2; the laser transmitter is equipped with a solar power supply panel and a temperature and humidity sensor to ensure that the laser is emitted in a set temperature and humidity meteorological range similar to that in order to reduce errors.

[0075] Both the laser emitter and the solar panel use existing mature technologies.

[0076] The target plate 3 is used to receive the light spot emitted by the laser transmitter to detect the displacement change;

[0077] A dual-axis inclinometer 102 is provided in the base 1 for reading the inclination angle of the target at any time.

[0078] During use, the deformation and displacement of the measured area are monitored by means of lasers and targets. The entire process does not require the monitoring personnel to be at a fixed workstation, thereby improving the convenience of monitoring and ensuring the safety of the monitoring personnel.

[0079] In the preferred solution, a battery 101 and a controller 103 are provided in the base 1, and the battery 101 is externally connected to a solar cell panel;

[0080] The base 1 is provided with an air pressure, temperature and humidity sensor 106 on the outside, and the air pressure, temperature and humidity sensor 106 detects and transmits signals in an existing manner;

[0081] The controller 103 is connected to the pressure, temperature and humidity sensor 106, the dual-axis inclinometer 102, the target plate 3 and the laser transmitter signal; the controller 103 adopts the existing control circuit board, has a built-in wireless signal transmission module, and adopts the existing method to receive signals, transmit signals, control and store data.

[0082] The battery 101 is electrically connected to the controller 103, the air pressure, temperature and humidity sensor 106, the dual-axis inclinometer 102, the target plate 3 and the laser transmitter. The laser transmitter can also be equipped with a separate battery 101.

[0083] The electrical connection and signal connection adopt the existing line connection method.

[0084] When in use, the battery 101 supplies power, the air pressure, temperature and humidity sensor 106 detects the temperature and humidity of the monitored environment, and the dual-axis inclinometer 102 detects the displacement change of the device.

[0085] Example 2:

[0086] like Figure 1 、 2 As shown in Figures 3 and 4, the target plate 3 includes a base plate 301 connected to the connecting seat 2, a vertical plate 302 is fixedly connected to the side of the base plate 301, and a terminal block 303 is provided on the side of the vertical plate 302; the base plate 301 and the vertical plate 302 are combined to form a T shape; the vertical plate 302 is hollow inside and can be used for wiring. At the same time, the vertical plate 302 is used to auxiliary support the target plate 3.

[0087] A plurality of fixing sleeves 304 are provided on the top of the bottom plate 301. The fixing sleeves 304 are fixedly connected to each other by connecting rods 305. The bottom fixing sleeve 304 is fixedly connected to the bottom plate 301 by the connecting rod 305.

[0088] There are gaps between adjacent fixing sleeves 304 and gaps between adjacent connecting rods 305;

[0089] During use, the spaced fixing sleeves 304 can prevent the entire surface of the target plate 3 from being subjected to force when encountering a strong wind environment, and the wind will pass through the gaps, thereby increasing the wind resistance of the target plate 3 of the present application, preventing the target plate 3 from being blown crooked by the wind, and ensuring the accuracy of monitoring.

[0090] The fixing sleeve 304 is provided with a mounting hole 306, and a mounting seat 307 is provided in the mounting hole 306. A plurality of photodiodes 308 are provided on one end surface of the mounting seat 307. The photodiodes 308 are preferably silicon photodiodes. The other end surface of the mounting seat 307 is connected to the terminal block 303 via a connecting wire. That is, the photodiodes 308 are electrically connected to the terminal block 303 via the existing connecting line.

[0091] The photodiodes 308 are arranged in a matrix. When in use, the laser can normally irradiate the photodiodes 308 provided on the fixing sleeve 304 .

[0092] Preferably, the diameter of the light spot generated by the laser emitter is not less than the distance between the centers of two adjacent mounting seats 307 .

[0093] During operation, light emitted by the laser emitter strikes the target plate 3. Photodiodes 308 within the light spot range generate a voltage signal due to light exposure, activating the code. After receiving the signal, controller 103 calculates the coordinates of the light spot center and completes data reading. By comparing the difference between the two recorded coordinates, the linear distance of the target displacement can be determined, making the operation convenient and efficient. To calculate the center coordinate, the edge coordinates are first obtained. These edge coordinates are then connected to form a circular or elliptical light spot edge according to a regular pattern. The center of the circular or elliptical light spot edge is the center coordinate. Conventional methods can be used to calculate the center of the circle or ellipse.

[0094] In a preferred solution, a plurality of plug holes 202 are provided on the top of the connecting base 2 , and plug posts are provided on the bottom of the vertical plate 302 and the bottom of the bottom plate 301 , and the plug posts are adapted to the plug holes 202 .

[0095] After installing the base 1, place the vertical plate 302 and the bottom plate 301 on the top of the connecting seat 2, and insert the plug-in column into the corresponding plug-in hole 202 to complete the installation; preferably, the plug-in column and the plug-in hole 202 are interference fit, or are fixed with screws after insertion.

[0096] In a further embodiment, Figure 2 、 4 As shown in , 6 and 7, a wire outlet hole 201 is provided in the connection base 2, a support sleeve 104 is provided in the base 1, and a wire through hole 105 is provided in the support sleeve 104. The connection lines between the terminal block 303 and the battery 101 and the controller 103 are passed through the wire through hole 105 and the wire outlet hole 201 to achieve the purpose of connecting the lines, and no external wiring is required.

[0097] In a further embodiment, Figure 7 As shown, a protective shell 311 is provided at the bottom end of the vertical plate 302, and the protective shell 311 covers the top of the outlet hole 201. A sealing door 312 is provided on the side of the protective shell 311; the sealing door 312 is hinged to the protective shell 311, and a sealing ring is provided at the connection between the sealing door 312 and the protective shell 311, and a sealing gasket is provided at the bottom of the protective shell 311.

[0098] The connection lines between the terminal block 303 and the battery 101 and the controller 103 are provided with terminal heads. The terminal heads are located in the protective shell 311 and are pluggable terminal heads, which are convenient for subsequent connection and disconnection.

[0099] When in use, the circuits are connected and disconnected in the protective shell 311 , for example, by inserting a hand into the protective shell 311 and then plugging or unplugging the plug-in connector, thereby facilitating installation and removal of the target plate 3 .

[0100] Example 3:

[0101] like Figure 2 、 4 , 5 and 7, the target plate 3 is provided with a dust removal mechanism 4;

[0102] The dust removal mechanism 4 includes an air hole 409 provided inside the base 1. An air inlet pipe 401 is provided on the top of the base 1. The air inlet pipe 401 is connected to one side of the air hole 409.

[0103] A fan 410 is provided in the air inlet pipe 401. The fan 410 adopts an existing fan. A filter 402 is provided on the top of the air inlet pipe 401. The filter 402 is used to filter dust.

[0104] The top of the base 1 is provided with a plurality of connecting tubes 403, which are connected to the other side of the air hole 409;

[0105] A plug-in tube 404 is provided in the connecting tube 403, and a transverse tube 405 is provided on the top of the plug-in tube 404. The length of the transverse tube 405 is adapted to the length of the target plate 3, and the connection between the plug-in tube 404 and the connecting tube 403 is in close contact.

[0106] An air outlet plate 406 is provided at the bottom end of the target plate 3. The length of the air outlet plate 406 is not less than the length of the target plate 3. The bottom of the air outlet plate 406 is connected to the cross pipe 405 through several connecting pipes 407. The top of the air outlet plate 406 is provided with an air outlet groove 408, which is connected to the connecting pipe 407.

[0107] When in use, start the fan 410 to continuously drive the gas circulation, so that the airflow enters the air hole 409 from the air inlet pipe 401, then enters the plug-in pipe 404 through the connecting tube 403, and then passes through the horizontal pipe 405 and the connecting pipe 407 in turn and is blown out through the air outlet slot 408. The blown airflow generates an air wall at the photodiode 308, which can not only blow away the dust on the surface of the photodiode 308, but also prevent the dust from approaching the photodiode 308, thereby ensuring that the photodiode 308 can accurately receive the light signal emitted by the laser transmitter; and in the process of the airflow entering from the air inlet pipe 401, a certain downward pressure force will be generated to prevent the base 1 from shaking at will, thereby ensuring stability during the working process.

[0108] Example 4:

[0109] like Figure 4 、 7 As shown in FIG8 , the base 1 is provided with a plurality of support frames 5 , which are used for auxiliary support, preferably four.

[0110] A plurality of connecting grooves 501 are provided on the outer periphery of the base 1, and the support frame 5 includes a support plate 502 rotated in the connecting groove 501, and the end of the support plate 502 close to the bottom end of the base 1 is hinged to the base 1; when the support plate 502 is located in the connecting groove 501, a stabilizing pad is provided between the top end of the support plate 502 and the connecting groove 501, and the stabilizing pad is a rubber pad. Friction is generated by the stabilizing pad, so that the support plate 502 inside the connecting groove 501 will not move at will.

[0111] The support plate 502 is provided with a placement groove 503, and a plurality of limit blocks 504 are provided in the placement groove 503;

[0112] A movable rod 505 is rotated in the connecting groove 501. One end of the movable rod 505 is rotatably connected to the base 1 via a rotating shaft 507. The size of the movable rod 505 is smaller than the placement groove 503.

[0113] The support plate 502 is provided with a groove 506, the size of the groove 506 is larger than the rotating shaft 507. When the support plate 502 is located in the connecting groove 501, the movable rod 505 is located in the groove 506. The groove 506 allows the support plate 502 to be rotated back into the connecting groove 501 without being affected by the rotating shaft 507, thereby ensuring that the support plate 502 is smoothly retracted.

[0114] When in use, first place the base 1 in the expected position. After it is stable, rotate the support plate 502 away from the connecting groove 501 so that the support plate 502 is close to the ground of the measured area, and then rotate the movable rod 505 so that the end of the movable rod 505 away from the rotating shaft 507 is rotated into the groove 506, and finally the movable rod 505 is against the limit block 504 to complete the support and fixation. Otherwise, it can be retracted. The operation is simple and convenient for supporting the base 1 to ensure the stability of the device during use.

[0115] Example 5:

[0116] like Figure 9 As shown, an engineering displacement monitoring system includes a target module, a laser module, a control module and a dust removal module;

[0117] The target module includes a tilt detection module, several receiving modules and a temperature and humidity monitoring module; the receiving module includes a photodiode 308, a base plate 301, a riser 302, a terminal block 303, a fixing sleeve 304, a connecting rod 305, a mounting hole 306 and a mounting seat 307 for receiving optical signals;

[0118] The temperature and humidity monitoring module includes a pressure temperature and humidity sensor 106 provided on the base 1 for monitoring the temperature and humidity of the measured area; the tilt detection module includes a dual-axis inclinometer 102 for monitoring the tilt angle of the target module;

[0119] The laser module includes a transmitting module and a temperature and humidity monitoring module; the transmitting module includes a laser transmitter for transmitting light signals; the temperature and humidity monitoring module includes an air pressure temperature and humidity sensor 106 provided on the laser transmitter for monitoring the temperature and humidity of the area where the laser module is located;

[0120] The control module is connected to the target module, laser module and dust removal module. The receiving module receives the light signal and transmits the signal to the control module. The control module determines the position of the light signal based on the received signal; the control module controls the opening and closing of the laser module and dust removal module.

[0121] The control module includes a timing module, a signal transmission module and a storage module. The timing module is used to control the opening and closing time of the laser module, the signal transmission module is used to transmit and receive monitoring signals and control signals, and the storage module is used to store data. The control module is a controller 103, which is located in the base 1.

[0122] The dust removal module includes a dust removal mechanism 4, namely, an air inlet pipe 401, a filter screen 402, a connecting tube 403, a plug-in tube 404, a horizontal pipe 405, an air outlet plate 406, a connecting pipe 407, an air outlet slot 408, an air hole 409 and a fan 410, which is used to remove dust from the receiving module.

[0123] Example 6:

[0124] A method for monitoring engineering displacement includes the following steps:

[0125] S1. Set up a base for fixing the target plate in the monitored area;

[0126] Bury a foundation for fixing the laser transmitter outside the deformation area of ​​the monitored area;

[0127] S2. Place the target plate on the base, with the front of the target plate parallel to the horizontal displacement direction to be monitored, and then return the dual-axis inclinometer to zero after power is turned on;

[0128] S3: Place the laser transmitter, ensure that the laser is irradiated on the center of the target plate, and lock the transmitter position;

[0129] S4: Select the best measurement time of the day to turn on the laser transmitter, such as 8-10 am, depending on the actual situation;

[0130] The laser spot irradiated on the target plate activates the photodiode on the target plate. The image center coordinates are calculated based on the activated photodiode, and the initial target plate coordinate axis is reset to zero. The time, air pressure, temperature and humidity are recorded.

[0131] S5: Set the laser emitter timing irradiation time, and the target plate records the new spot coordinates and dual-axis inclinometer tilt angle obtained each time it is activated;

[0132] S6: Calculate the displacement amount according to the displacement value and the tilt value of the target plate, that is, calculate the horizontal displacement L and the settlement Z.

[0133] Specifically, the two closest coordinates recorded by the target plate are subtracted to obtain the target displacement linear distance S i , the dual-axis inclinometer records the transverse tilt angle α xi and the longitudinal tilt angle α zi ;

[0134] The horizontal displacement L and settlement Z are calculated:

[0135] ;

[0136] ;

[0137] Where i=1, 2, 3...n, represents the nth record, T i is the temperature, H i is humidity, k T is the temperature influence coefficient, k H is the humidity influence coefficient, T0 is the initial temperature, H0 is the initial humidity, during the working process, k T and k H The value of is determined according to the specific environment and experimental data, such as by setting up multiple groups of control experiments to accurately reflect the impact of temperature and humidity on displacement.

[0138] The method of the present application is simple to operate, the displacement monitoring results are more accurate, and there is no need for monitoring personnel to follow the equipment and stay in the monitoring area for a long time. Monitoring is more convenient and the safety of detection personnel is higher.

[0139] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. In other words, equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. An engineering displacement monitoring system, characterized by: It comprises a base (1) located in a monitoring area and a laser emitter located outside the monitoring area, wherein a connecting seat (2) is provided on the top of the base (1), and a target plate (3) is provided on the top of the connecting seat (2); The target plate (3) is used to receive the light spot emitted by the laser transmitter; The target plate (3) includes a bottom plate (301) connected to the connecting seat (2); A plurality of fixing sleeves (304) are provided on the top of the bottom plate (301), and the fixing sleeves (304) are fixedly connected to each other via connecting rods (305), and the bottommost fixing sleeve (304) is fixedly connected to the bottom plate (301) via the connecting rod (305); There is a gap between adjacent fixing sleeves (304), and there is a gap between adjacent connecting rods (305); A mounting seat (307) is provided in the fixing sleeve (304), and a plurality of photodiodes (308) are provided on one end surface of the mounting seat (307); A dual-axis inclinometer (102) is provided in the base (1) for reading the inclination angle of the target at any time.

2. The engineering displacement monitoring system according to claim 1, characterized in that: A battery (101) and a controller (103) are provided in the base (1), and the battery (101) is externally connected to a solar cell panel; An air pressure, temperature and humidity sensor (106) is provided on the outside of the base (1); The controller (103) is connected to the air pressure, temperature and humidity sensor (106), the dual-axis inclinometer (102), the target plate (3) and the laser transmitter signal; The battery (101) is electrically connected to the controller (103), the air pressure, temperature and humidity sensor (106), the dual-axis inclinometer (102), the target plate (3) and the laser transmitter.

3. The engineering displacement monitoring system according to claim 2, characterized in that: The side of the bottom plate (301) is fixedly connected to a vertical plate (302), and the side of the vertical plate (302) is provided with a wiring block (303); the bottom plate (301) and the vertical plate (302) are combined to form a T shape; A mounting hole (306) is provided in the fixing sleeve (304), and the mounting seat (307) is located in the mounting hole (306); The other end surface of the mounting seat (307) is connected to the terminal block (303) via a connecting wire; The photodiodes (308) are arranged in a matrix.

4. The engineering displacement monitoring system according to claim 3, characterized in that: The top of the connecting seat (2) is provided with a plurality of plug holes (202), and the bottom of the vertical plate (302) and the bottom of the bottom plate (301) are both provided with plug posts, and the plug posts are adapted to the plug holes (202).

5. The engineering displacement monitoring system according to claim 3, characterized in that: A wire outlet hole (201) is provided in the connection seat (2), a support sleeve (104) is provided in the base (1), a wire through hole (105) is provided in the support sleeve (104), and a connection line between the terminal block (303) and the battery (101) and the controller (103) is passed through the wire through hole (105) and the wire outlet hole (201); A protective shell (311) is provided at the bottom end of the vertical plate (302), the protective shell (311) covers the top end of the outlet hole (201), and a sealing door (312) is provided on the side of the protective shell (311); The connection lines between the terminal block (303) and the battery (101) and the controller (103) are provided with terminal heads, which are located in the protective shell (311); The terminal block is a plug-in terminal block.

6. The engineering displacement monitoring system according to claim 1, characterized in that: The target plate (3) is provided with a dust removal mechanism (4); The dust removal mechanism (4) includes an air hole (409) provided inside the base (1); an air inlet pipe (401) is provided on the top of the base (1); and the air inlet pipe (401) is connected to one side of the air hole (409); A fan (410) is provided in the air inlet pipe (401), and a filter (402) is provided on the top of the air inlet pipe (401); A plurality of connecting tubes (403) are provided on the top of the base (1), and the connecting tubes (403) are connected to the other side of the air hole (409); A plug-in tube (404) is provided in the connecting tube (403), and a transverse tube (405) is provided on the top of the plug-in tube (404). The length of the transverse tube (405) is adapted to the length of the target plate (3); An air outlet plate (406) is provided at the bottom end of the target plate (3), and the length of the air outlet plate (406) is not less than the length of the target plate (3). The bottom of the air outlet plate (406) is connected to the horizontal pipe (405) through a plurality of connecting pipes (407). An air outlet groove (408) is provided at the top of the air outlet plate (406), and the air outlet groove (408) is communicated with the connecting pipe (407).

7. The engineering displacement monitoring system according to claim 1, characterized in that: The base (1) is provided with a plurality of support frames (5), and the support frames (5) are used for auxiliary support; The outer periphery of the base (1) is provided with a plurality of connecting grooves (501), and the support frame (5) includes a supporting plate (502) rotated in the connecting groove (501), and one end of the supporting plate (502) close to the bottom end of the base (1) is hinged to the base (1); The support plate (502) is provided with a placement groove (503), and a plurality of limit blocks (504) are provided in the placement groove (503); A movable rod (505) is rotatably disposed in the connecting groove (501), one end of the movable rod (505) is rotatably connected to the base (1) via a rotating shaft (507), and the size of the movable rod (505) is smaller than the placement groove (503); The support plate (502) is provided with a groove (506), the size of the groove (506) is larger than the rotating shaft (507), and when the support plate (502) is located in the connecting groove (501), the movable rod (505) is located in the groove (506).

8. An engineering displacement monitoring system according to any one of claims 1 to 7, characterized in that: Including target module, laser module, control module and dust removal module; The target module includes a tilt detection module, a plurality of receiving modules and a temperature and humidity monitoring module; the receiving module includes a photodiode (308) for receiving light signals; the temperature and humidity monitoring module includes a pressure temperature and humidity sensor (106) provided on a base (1) for monitoring the temperature and humidity of a measured area; the tilt detection module includes a dual-axis inclinometer (102) for monitoring the tilt angle of the target module; The laser module includes a transmitting module and a temperature and humidity monitoring module; the transmitting module includes a laser transmitter for transmitting light signals; the temperature and humidity monitoring module includes an air pressure, temperature and humidity sensor (106) provided on the laser transmitter for monitoring the temperature and humidity of the area where the laser module is located; The control module is connected to the target module, laser module and dust removal module. The receiving module receives the light signal and transmits the signal to the control module. The control module determines the position of the light signal based on the received signal; the control module controls the opening and closing of the laser module and dust removal module. The control module includes a timing module, a signal transmission module and a storage module. The timing module is used to control the time of opening and closing the laser module. The signal transmission module is used to transmit and receive monitoring signals and control signals. The storage module is used to store data. The control module is a controller (103). The controller (103) is located in the base (1). The dust removal module comprises a dust removal mechanism (4), which is connected to the target plate (3) and is used for removing dust from the receiving module.

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