Wireless monitoring device for displacement monitoring

Abstract

The utility model discloses a wireless monitoring device for displacement monitoring, which relates to the technical field of wireless monitoring devices and comprises a wireless monitoring device body, a mounting seat, a laser transmitter and a standard platform, and the wireless monitoring device body is arranged at the top of the mounting seat. The detection reminding mechanism is matched with the adjusting moving mechanism to check the laser transmitter and the standard platform, a user can adjust conveniently, and the problems that an existing wireless monitoring device is affected by factors such as temperature fluctuation and environment interference, structural deviation is prone to being generated, monitoring data deviates, and the monitoring accuracy is poor are solved. The temperature, the strong wind load, the foundation settlement, the atmospheric turbulence interference and the like in the field complex environment can make the device displace or change the posture, the offset accumulation effect can reduce the measurement precision, a user is difficult to find the offset in time, and the wireless monitoring device can be directly pre-buried and installed, so that the wireless monitoring device cannot be damaged. Therefore, the problem of inconvenience in subsequent calibration of the wireless monitoring device is solved.

Description

Technical Field

[0001] This utility model relates to the field of wireless monitoring device technology, specifically a wireless monitoring device for displacement monitoring. Background Technology

[0002] Wireless monitoring devices for displacement monitoring are equipment that use wireless communication technology to monitor the displacement of objects in real time. They typically consist of sensors, data acquisition modules, wireless transmission modules, and power supplies. The sensors are responsible for sensing changes in the displacement of the object and converting them into electrical signals. The data acquisition module processes and collects the signals, and the wireless transmission module sends the data to a remote terminal so that staff can monitor the displacement in real time. They are widely used in safety monitoring in fields such as construction and bridges.

[0003] For example, a laser-type wireless displacement monitoring device with announcement number CN219265231U includes a column with an electrical control box on top. The main body of the laser displacement monitoring device is located on the upper right side of the column. The main body includes a handle, a display screen, control buttons, a power switch, and a laser transmitter. The display screen is located in the middle of the lower front of the handle, and the power switch is located on the right side of the display screen. The user can use the laser beam emitted by the laser transmitter inside the main body to hit the standard platform, automatically recording displacement distance data. The recorded data is stored in the main body and uploaded to a terminal via the signal antenna. The data can be compared with the previous pair at any time, thus monitoring whether slope displacement has occurred.

[0004] Based on the search of patent numbers, and combined with the shortcomings of existing technologies, the following findings were made;

[0005] Existing wireless monitoring devices are prone to structural shifts due to factors such as temperature fluctuations and environmental interference, leading to deviations in monitoring data. In complex outdoor environments, factors such as temperature, strong wind loads, foundation settlement, and atmospheric turbulence can cause displacement or attitude changes in the device. The cumulative effect of these shifts reduces measurement accuracy, and users may find it difficult to detect the shifts in time. Furthermore, since wireless monitoring devices are directly pre-installed, subsequent calibration is also quite inconvenient. Summary of the Invention

[0006] To address the problems mentioned in the background art, the purpose of this utility model is to provide a wireless monitoring device for displacement monitoring, which has the advantages of detection and adjustment. It solves the problem that existing wireless monitoring devices are easily affected by factors such as temperature fluctuations and environmental interference, resulting in structural shifts and deviations in monitoring data. In complex outdoor environments, factors such as temperature, strong wind loads, foundation settlement, and atmospheric turbulence interference can cause the device to shift or change its attitude. The cumulative effect of these shifts will reduce the measurement accuracy, and users will find it difficult to detect the shifts in time. Furthermore, since the wireless monitoring device is directly pre-installed, it is also inconvenient to calibrate the device in the future.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a wireless monitoring device for displacement monitoring, comprising a wireless monitoring device body, a mounting base, a laser transmitter, and a standard platform. The wireless monitoring device body is provided with the top of the mounting base. The laser transmitter is installed on one side of the wireless monitoring device body. The standard platform is adapted to be installed at the detection point. A detection reminder mechanism is installed on the top of the wireless monitoring device body. The detection reminder mechanism includes a dual-axis tilt sensor. A three-point reflective target array is provided on the top of the standard platform. A miniature pressure sensor is integrated below each of the three-point reflective target arrays. The dual-axis tilt sensor is electrically connected to a controller via wires. The controller is electrically connected to the three-point reflective target array via wires. The controller is electrically connected to a remote controller via wires. An adjustment and movement mechanism is provided on the top of the mounting base.

[0008] As a preferred embodiment of this utility model, the adjusting and moving mechanism includes a screw jack, the drive end of which is equipped with a stepper motor, the lifting end of which is equipped with a moving plate, a universal ball joint is adapted to be installed on the outer side of the bottom of the moving plate, and an electric push rod is installed at the bottom of the universal ball joint.

[0009] As a preferred embodiment of this utility model, a fixing plate is installed at the bottom of the electric push rod, a shock absorber is installed at the bottom of the fixing plate, a fixing groove is provided at the top of the mounting base, and the shock absorber is installed inside the fixing groove.

[0010] As a preferred embodiment of this utility model, the screw jack is provided with a telescopic dustproof box on its outer side. The telescopic dustproof box is installed at the bottom of the moving plate and at the top of the mounting base. The outer side of the telescopic dustproof box is coated with an anti-corrosion coating.

[0011] As a preferred embodiment of this utility model, a limiting plate is installed at the bottom of the fixing plate, an elastic strip is installed between the limiting plate and the fixing plate, the surface of the limiting plate is located inside the fixing groove, and a sealing plate is installed on the outer side of the limiting plate.

[0012] In a preferred embodiment of this invention, the standard platform is a rectangular metal substrate, and three embedded mounting slots are provided on the surface of the standard platform. The three-point reflective target array is fixed in the mounting slots by epoxy resin adhesive. An elastic conductive column is installed at the detection end of the micro pressure sensor, and the micro pressure sensor contacts the bottom surface of the three-point reflective target array through the elastic conductive column.

[0013] As a preferred embodiment of this invention, the surface of the three-point reflective target array is coated with a high-reflectivity aluminum film with a flatness of ≤0.01mm, the elastic conductive column is made of beryllium bronze with a diameter of 2mm and a length of 5mm, and the signal output end of the miniature pressure sensor is electrically connected to the controller through a shielded wire.

[0014] In a preferred embodiment of this invention, the input terminal of the controller is electrically connected to the dual-axis tilt sensor and the miniature pressure sensor, respectively, and the output terminal is electrically connected to the laser emitter and the remote controller, respectively. The controller has a built-in data acquisition module and a signal amplification circuit. Both the controller and the remote controller are installed on one side of the wireless monitoring device body. The dual-axis tilt sensor is an SCA1300-D01 type MEMS sensor with a detection accuracy of ±0.005°. It has a built-in temperature compensation algorithm that can correct drift errors in the range of -40℃ to +85℃, with a temperature drift of <0.002° / ℃.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model uses a detection and reminder mechanism in conjunction with an adjustment and movement mechanism to inspect the laser emitter and standard platform, facilitating user adjustment. It solves the problem that existing wireless monitoring devices are prone to structural shifts due to factors such as temperature fluctuations and environmental interference, leading to deviations in monitoring data. In complex outdoor environments, factors such as temperature, strong wind loads, foundation settlement, and atmospheric turbulence can cause device displacement or attitude changes. The cumulative effect of these shifts reduces measurement accuracy, and users find it difficult to detect the shifts in time. Furthermore, since the wireless monitoring device is directly pre-installed, subsequent calibration is also inconvenient. This invention achieves the effect of detection and adjustment.

[0017] 2. This utility model, by setting up an adjustment and movement mechanism, can start a stepper motor during use, so that the output end of the stepper motor drives the screw jack to drive the transmission, so that the screw jack can accurately adjust the height of the moving plate, thereby adjusting and compensating for the height of the wireless monitoring device body. The electric push rod, together with the universal ball joint, can compensate for the tilt of the wireless monitoring device body, making it convenient for users to perform multi-dimensional calibration of the device's posture, and adapting to various offset scenarios such as foundation settlement and tilting in complex field environments.

[0018] 3. By setting a fixed plate, an elastic damper, and a fixed groove, this utility model can effectively absorb external vibrations and avoid device displacement or laser spot deviation caused by vibration. At the same time, the fixed groove limits the damping device and ensures the stability of the device during the adjustment process, thus solving the problem of large fluctuations in monitoring data of existing devices under vibration environment. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the three-dimensional disassembled structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the disassembled side view of the present invention;

[0022] Figure 4 This is a schematic diagram of the disassembled structure of the adjusting and moving mechanism of this utility model;

[0023] Figure 5 This is a schematic diagram of the disassembled structure of the detection and reminder mechanism of this utility model.

[0024] In the diagram: 1. Wireless monitoring device body; 2. Mounting base; 3. Laser emitter; 4. Standard platform; 5. Detection and reminder mechanism; 51. Dual-axis tilt sensor; 52. Three-point reflective target array; 53. Miniature pressure sensor; 54. Controller; 55. Remote controller; 6. Adjustment and movement mechanism; 61. Screw jack; 62. Stepper motor; 63. Moving plate; 64. Universal ball joint; 65. Electric push rod; 7. Fixing plate; 8. Vibration damper; 9. Fixing groove; 10. Telescopic dustproof box; 11. Anti-corrosion coating; 12. Limiting plate; 13. Elastic strip; 14. Sealing plate; 15. Mounting groove; 16. Elastic conduction column. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 5As shown, the present invention provides a wireless monitoring device for displacement monitoring, comprising a wireless monitoring device body 1, a mounting base 2, a laser transmitter 3, and a standard platform 4. The wireless monitoring device body 1 is provided on the top of the mounting base 2. The laser transmitter 3 is installed on one side of the wireless monitoring device body 1. The standard platform 4 is adapted to be installed at the detection point. A detection reminder mechanism 5 is installed on the top of the wireless monitoring device body 1. The detection reminder mechanism 5 includes a dual-axis tilt sensor 51. A three-point reflective target array 52 is provided on the top of the standard platform 4. A miniature pressure sensor 53 is integrated below each three-point reflective target array 52. ​​The dual-axis tilt sensor 51 is electrically connected to a controller 54 through wires. The controller 54 is electrically connected to the three-point reflective target array 52 through wires. The controller 54 is electrically connected to a remote controller 55 through wires. An adjustment and movement mechanism 6 is provided on the top of the mounting base 2.

[0027] refer to Figure 4 The adjusting and moving mechanism 6 includes a screw jack 61, a stepper motor 62 is installed at the drive end of the screw jack 61, a moving plate 63 is installed at the lifting end of the screw jack 61, a universal ball joint 64 is adapted to be installed on the outer side of the bottom of the moving plate 63, and an electric push rod 65 is installed at the bottom of the universal ball joint 64.

[0028] As a technical optimization of this utility model, by setting an adjustment and moving mechanism 6, a stepper motor 62 can be started during use, so that the output end of the stepper motor 62 drives the screw jack 61 to perform transmission, so that the screw jack 61 can accurately adjust the height of the moving plate 63, thereby adjusting and compensating for the height of the wireless monitoring device body 1. The electric push rod 65, together with the universal ball joint 64, can achieve compensation adjustment when the wireless monitoring device body 1 tilts, which makes it convenient for users to perform multi-dimensional calibration of the device's posture and adapt to various offset scenarios such as foundation settlement and tilting in complex outdoor environments.

[0029] refer to Figure 4 The bottom of the electric push rod 65 is equipped with a fixing plate 7, and the bottom of the fixing plate 7 is equipped with a shock absorber 8. The top of the mounting base 2 is provided with a fixing groove 9, and the shock absorber 8 is installed inside the fixing groove 9.

[0030] As a technical optimization of this utility model, by setting a fixed plate 7, an elastic damper and a fixed groove 9, external vibrations can be effectively absorbed, avoiding device displacement or laser spot deviation caused by vibration. At the same time, the fixed groove 9 limits the damping device 8, ensuring the stability of the device during the adjustment process, and solving the problem of large fluctuations in monitoring data of existing devices under vibration environment.

[0031] refer to Figure 4The screw jack 61 is equipped with a telescopic dustproof box 10 on its outer side. The telescopic dustproof box 10 is installed at the bottom of the moving plate 63 and at the top of the mounting base 2. The telescopic dustproof box 10 is coated with an anti-corrosion coating 11 on its outer side.

[0032] As a technical optimization of this utility model, by setting a telescopic dustproof box 10 and an anti-corrosion coating 11, it can extend synchronously with the lifting of the screw, effectively blocking dust and mud from entering the screw jack 61. At the same time, the anti-corrosion coating 11 solves the problem of screw corrosion in high humidity and salinity environments in the field, extends the service life of the adjustment mechanism, and reduces the maintenance frequency. It is especially suitable for harsh environments such as mining areas and coastal areas.

[0033] refer to Figure 4 A limiting plate 12 is installed at the bottom of the fixing plate 7. An elastic strip 13 is installed between the limiting plate 12 and the fixing plate 7. The surface of the limiting plate 12 is located inside the fixing groove 9. A sealing plate 14 is installed on the outside of the limiting plate 12.

[0034] As a technical optimization of this utility model, by setting a limiting plate 12, an elastic strip 13 and a sealing plate 14, when the limiting plate 12 is inserted into the fixing groove 9, the elastic strip 13 provides a pre-tightening force to ensure a rigid connection with the mounting base 2. At the same time, the sealing plate 14 can block dust and spray water from entering, solving the problem of jamming caused by insufficient sealing of the adjustment components in traditional devices, and taking into account both adjustment flexibility and environmental adaptability.

[0035] refer to Figure 5 The standard platform 4 is a rectangular metal substrate. Three embedded mounting slots 15 are opened on the surface of the standard platform 4. The three-point reflective target array 52 is fixed in the mounting slot 15 by epoxy resin. The detection end of the miniature pressure sensor 53 is equipped with an elastic transmission column 16. The miniature pressure sensor 53 contacts the bottom surface of the three-point reflective target array 52 through the elastic transmission column 16.

[0036] As a technical optimization of this utility model, by setting a standard platform 4, mounting groove 15 and elastic transmission column 16, the flatness of the reflective target is ensured to be ≤0.01mm. With the elastic transmission column 16 and miniature pressure sensor 53, the warping deformation or displacement of the platform at the level of 0.05mm can be accurately sensed, which solves the problem of laser reflection deviation caused by insufficient platform installation accuracy in existing devices and provides a stable benchmark reference for displacement monitoring.

[0037] refer to Figure 5 The surface of the three-point reflective target array 52 is coated with a high-reflectivity aluminum film with a flatness of ≤0.01mm. The elastic conductive column 16 is made of beryllium bronze with a diameter of 2mm and a length of 5mm. The signal output end of the miniature pressure sensor 53 is electrically connected to the controller 54 through a shielded wire.

[0038] As a technical optimization of this utility model, by setting up a three-point reflective target array 52, an elastic conduction column 16, and a miniature pressure sensor 53, the high reflectivity of the aluminum film on the reflective target surface (>95%) and the signal shielding wire design of the miniature pressure sensor 53 not only ensure that the stable reflection spot offset error of the laser beam is ≤0.1mm, but also avoid the influence of electromagnetic interference on the pressure signal, improving the signal-to-noise ratio by 30%. Combined with the high rigidity and elastic modulus of 125GPa of the beryllium bronze elastic conduction column 16, the platform deformation can be converted into an electrical signal in real time and accurately, providing a reliable adjustment basis for the controller 54.

[0039] refer to Figure 5 The input terminals of the controller 54 are electrically connected to the dual-axis tilt sensor 51 and the miniature pressure sensor 53, respectively, and the output terminals are electrically connected to the laser emitter 3 and the remote controller 55, respectively. The controller 54 has a built-in data acquisition module and signal amplification circuit. Both the controller 54 and the remote controller 55 are installed on one side of the wireless monitoring device body. The dual-axis tilt sensor 51 is an SCA1300-D01 type MEMS sensor with a detection accuracy of ±0.005°. It has a built-in temperature compensation algorithm that can correct drift errors in the range of -40℃ to +85℃, with a temperature drift of <0.002° / ℃.

[0040] As a technical optimization of this utility model, by setting up a controller 54 and a dual-axis tilt sensor 51, the controller 54 has a built-in data acquisition module and signal amplification circuit, which can perform noise reduction processing on the weak signals of the dual-axis tilt sensor 51 and the miniature pressure sensor 53. Combined with the temperature compensation algorithm of the SCA1300-D01 tilt sensor, it automatically corrects the temperature drift in the range of -40℃ to +85℃, which solves the detection deviation problem of the existing device under extreme temperatures and ensures the long-term reliability of the monitoring data.

[0041] The working principle and usage process of this utility model: During the data acquisition phase, after the device is started, the dual-axis tilt sensor 51 begins to monitor the tilt angle of the wireless monitoring device body 1 relative to the initial installation state in real time. With its high detection accuracy of ±0.005°, the SCA1300-D01 MEMS sensor can keenly capture extremely subtle angle changes. Furthermore, by utilizing the built-in temperature compensation algorithm, it effectively corrects the drift error caused by temperature fluctuations within the range of -40℃ to +85℃, ensuring the accuracy of the angle data.

[0042] The standard platform 4 detects the laser beam emitted by the laser emitter 3 onto a three-point reflective target array 52 on the standard platform 4. Because the reflective target surface is coated with a high-reflectivity aluminum film and has a flatness ≤0.01mm, the laser beam can be stably reflected. By analyzing the position of the reflected light, the displacement change between the laser emitter 3 and the standard platform 4 can be accurately calculated. Simultaneously, a miniature pressure sensor 53 integrated beneath each reflective target contacts the bottom surface of the reflective target via a beryllium bronze elastic conduction post 16. When the standard platform 4 undergoes a slight warping deformation, the elastic conduction post 16 converts this deformation into a pressure change and transmits it to the miniature pressure sensor 53.

[0043] Data transmission and processing: The tilt angle data detected by the dual-axis tilt sensor 51 and the pressure change data collected by the miniature pressure sensor 53 are transmitted to the controller 54 through shielded wires. The data acquisition module built into the controller 54 is responsible for collecting these data and using a signal amplification circuit to amplify the weak signals, thereby improving the signal strength and stability.

[0044] In the judgment and decision-making process, the controller 54 compares the processed data with preset thresholds. These thresholds are preset according to the actual application scenario and monitoring accuracy requirements. For example, the tilt angle threshold may be set to ±0.1°, and the displacement threshold may be set to ±0.5mm. Once the data exceeds the threshold, the controller 54 immediately determines that the device has experienced an offset that needs to be adjusted.

[0045] During the adjustment phase, when the controller 54 determines that adjustment is needed, it will start the stepper motor 62 to drive the screw jack 61 to work. Under the drive of the stepper motor 62, the drive end of the screw jack 61 causes the screw to rotate, thereby realizing the raising or lowering action of the lifting end. This drives the wireless monitoring device body 1 installed on the moving plate 63 of the lifting end to adjust its height. In the horizontal direction, if the device is detected to be tilted or displaced, the electric push rod 65 starts to work under the control of the controller 54. The electric push rod 65 is connected to the moving plate 63 through the universal ball joint 64. The universal ball joint 64 can rotate flexibly within a certain range, allowing the electric push rod 65 to push the moving plate 63 at different angles. When the device tilts or displaces in a certain direction, the electric push rod 65 at the corresponding position will extend or retract according to the command of the controller 54, and transmit the thrust to the moving plate 63 through the universal ball joint 64, thereby realizing the horizontal position adjustment of the wireless monitoring device body 1.

[0046] For protection and stability assurance, during the operation of the device, the telescopic dustproof box 10 extends and retracts synchronously with the lifting and lowering of the screw jack 61. The anti-corrosion coating 11 sprayed on its outer side can effectively resist the corrosion of harsh environments such as high humidity and salinity in the wild, prevent the screw from rusting, and extend the service life of the screw jack 61. It can prevent dust, mud and other impurities from entering the screw jack 61, avoid mechanical failures caused by the accumulation of impurities, and ensure the normal operation and adjustment accuracy of the screw jack 61. The shock absorber 8 at the bottom of the fixing plate 7 is installed in the fixing groove 9 at the top of the mounting base 2, which can effectively absorb the external vibration energy. When external vibrations occur, such as vibrations caused by strong winds or vibrations caused by nearby vehicles, the damper can effectively absorb the vibration energy. When vibration occurs, the damper 8 undergoes elastic deformation, converting the vibration energy into its own internal energy and dissipating it, thus reducing the impact of vibration on the device and preventing device displacement or laser spot deviation caused by vibration, ensuring the accuracy of monitoring data. The limiting plate 12, elastic strip 13, and sealing plate 14 work together to enhance the stability and sealing of the device. The limiting plate 12 is inserted into the fixing groove 9, and the elastic strip 13 provides pre-tightening force between the limiting plate 12 and the fixing plate 7 to prevent loosening during adjustment. The sealing plate 14 is installed on the outside of the limiting plate 12, which can effectively block dust and spray water from entering, preventing the adjustment components from rusting or jamming due to moisture and impurities, thus balancing adjustment flexibility and environmental adaptability.

[0047] The controller 54 also transmits monitoring data and device status information to the remote controller 55 via wires. The remote controller 55 has wireless communication capabilities and can send this information to remote terminal devices, such as computers and mobile phones. Staff can use the remote terminal to view the device's operating status, monitoring data, and whether any deviation has occurred in real time. If necessary, staff can also send control commands on the remote terminal, which are transmitted to the device's controller 54 via the remote controller 55, enabling remote control adjustment of the moving mechanism 6 for calibration operations, thus improving the convenience and flexibility of the device.

[0048] In summary, this wireless monitoring device for displacement monitoring, through the combination of a detection and reminder mechanism 5 and an adjustment and movement mechanism 6, checks the laser transmitter 3 and the standard platform 4, facilitating user adjustment. It solves the problem that existing wireless monitoring devices are susceptible to structural shifts due to temperature fluctuations and environmental interference, leading to data deviations. In complex outdoor environments, factors such as temperature, strong wind loads, foundation settlement, and atmospheric turbulence can cause device displacement or attitude changes. The cumulative effect of these shifts reduces measurement accuracy, and users often fail to detect these shifts in a timely manner. Furthermore, the pre-installation of the wireless monitoring device makes subsequent calibration inconvenient.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wireless monitoring device for displacement monitoring, comprising a wireless monitoring device body (1), a mounting base (2), a laser transmitter (3), and a standard platform (4), characterized in that: The wireless monitoring device body (1) is provided with a mounting base (2) on the top. The laser emitter (3) is installed on one side of the wireless monitoring device body (1). The standard platform (4) is adapted to be installed at the detection point. The wireless monitoring device body (1) is provided with a detection reminder mechanism (5). The detection reminder mechanism (5) includes a dual-axis tilt sensor (51). The standard platform (4) is provided with a three-point reflective target array (52). Each three-point reflective target array (52) integrates a miniature pressure sensor (53) below it. The dual-axis tilt sensor (51) is electrically connected to a controller (54) through a wire. The controller (54) is electrically connected to the three-point reflective target array (52) through a wire. The controller (54) is electrically connected to a remote controller (55) through a wire. The mounting base (2) is provided with an adjustment and movement mechanism (6).

2. The wireless monitoring device for displacement monitoring according to claim 1, characterized in that: The adjustment and movement mechanism (6) includes a screw jack (61), a stepper motor (62) is installed at the drive end of the screw jack (61), a moving plate (63) is installed at the lifting end of the screw jack (61), a universal ball joint (64) is adapted to be installed on the outer side of the bottom of the moving plate (63), and an electric push rod (65) is installed at the bottom of the universal ball joint (64).

3. The wireless monitoring device for displacement monitoring according to claim 2, characterized in that: The bottom of the electric push rod (65) is equipped with a fixing plate (7), and the bottom of the fixing plate (7) is equipped with a shock absorber (8). The top of the mounting base (2) is provided with a fixing groove (9), and the shock absorber (8) is installed inside the fixing groove (9).

4. The wireless monitoring device for displacement monitoring according to claim 2, characterized in that: The screw jack (61) is provided with a telescopic dustproof box (10) on the outside. The telescopic dustproof box (10) is installed at the bottom of the moving plate (63) and at the top of the mounting base (2). The telescopic dustproof box (10) is coated with an anti-corrosion coating (11) on the outside.

5. A wireless monitoring device for displacement monitoring according to claim 3, characterized in that: A limiting plate (12) is installed at the bottom of the fixing plate (7), and an elastic strip (13) is installed between the limiting plate (12) and the fixing plate (7). The surface of the limiting plate (12) is located inside the fixing groove (9), and a sealing plate (14) is installed on the outside of the limiting plate (12).

6. The wireless monitoring device for displacement monitoring according to claim 1, characterized in that: The standard platform (4) is a rectangular metal substrate. Three embedded mounting slots (15) are provided on the surface of the standard platform (4). The three-point reflective target array (52) is fixed in the mounting slot (15) by epoxy resin. The detection end of the micro pressure sensor (53) is equipped with an elastic transmission column (16). The micro pressure sensor (53) contacts the bottom surface of the three-point reflective target array (52) through the elastic transmission column (16).

7. A wireless monitoring device for displacement monitoring according to claim 6, characterized in that: The surface of the three-point reflective target array (52) is coated with a high reflectivity aluminum film with a flatness of ≤0.01mm. The elastic conductive column (16) is made of beryllium bronze with a diameter of 2mm and a length of 5mm. The signal output end of the micro pressure sensor (53) is electrically connected to the controller (54) through a shielded wire.

8. A wireless monitoring device for displacement monitoring according to claim 1, characterized in that: The input terminals of the controller (54) are electrically connected to the dual-axis tilt sensor (51) and the miniature pressure sensor (53), respectively, and the output terminals are electrically connected to the laser emitter (3) and the remote controller (55), respectively. The controller (54) has a built-in data acquisition module and a signal amplification circuit. The controller (54) and the remote controller (55) are both installed on one side of the wireless monitoring device body (1). The dual-axis tilt sensor (51) is an SCA1300-D01 type MEMS sensor with a detection accuracy of ±0.005°. It has a built-in temperature compensation algorithm that can correct the drift error in the range of -40℃ to +85℃, with a temperature drift of <0.002° / ℃.

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