Adjustable geological disaster crack measuring device

Abstract

The invention relates to the technical field of geological disaster monitoring, and discloses an adjustable geological disaster crack measuring device which comprises a first shell, a first driving seat and a second driving seat are fixedly arranged at the bottom end of the interior of the first shell, first transmission shafts are arranged at the two ends of the inner wall of the first driving seat, and a first arc-shaped rod is fixedly arranged at one end of each first transmission shaft; a first sliding groove is formed in the middle of the first arc-shaped rod, a direction lever is slidably connected into the first sliding groove of the first arc-shaped rod, a second arc-shaped rod is arranged at the bottom end of the first arc-shaped rod, a second sliding groove is formed in the middle of the second arc-shaped rod, and the second sliding groove of the second arc-shaped rod is slidably connected to the outer wall of the direction lever. Multi-angle adjustment can be achieved through the steering yoke, and the steering yoke can be accurately aligned with geological disaster cracks in different directions and different inclination angles by means of accurate control over the rotating angles, the rotating speeds and the rotating directions of the first motor and the second motor. The problem that the crack cannot be measured at multiple angles is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of geological disaster monitoring, and specifically to an adjustable geological disaster crack measurement device. Background Technique

[0002] At present, when geological disasters occur frequently, after disasters such as earthquakes, landslides, and ground collapses, various forms, different depths, and orientations of cracks often appear on the ground surface or mountain bodies. Accurately measuring these cracks plays a crucial role in evaluating the damage degree of geological disasters, predicting subsequent development trends, and formulating reasonable response and repair plans.

[0003] In the actual work of measuring geological disaster cracks, the angle adjustment function of the measuring device is one of the key factors affecting the measurement accuracy and comprehensiveness. However, there are many limitations in the angle adjustment of existing geological disaster crack measurement devices.

[0004] Traditional simple measurement tools, such as ordinary steel tapes and measuring tapes, basically do not have the angle adjustment function themselves. They can only simply measure the width of the crack in one dimension when manually placed by the operator at the crack position, and completely rely on the operator's naked eye to judge whether it is parallel to the crack orientation during measurement. A slight deviation in the angle may lead to measurement errors. Moreover, it is very difficult for such tools to effectively fit and measure cracks with a certain inclination angle or in complex terrains (such as on slopes, in mountain depressions, etc.). Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an adjustable geological disaster crack measurement device, which solves the problem of being unable to measure cracks from multiple angles.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: An adjustable geological disaster crack measurement device includes a first housing. At the inner bottom end of the first housing, a first driving seat and a second driving seat are fixedly arranged. At both ends of the inner wall of the first driving seat, a first transmission shaft is provided. At one end of the first transmission shaft, a first arc-shaped rod is fixedly arranged. A first chute is provided in the middle of the first arc-shaped rod. A direction rod is slidably connected in the first chute of the first arc-shaped rod. At the bottom end of the first arc-shaped rod, a second arc-shaped rod is provided. A second chute is provided in the middle of the second arc-shaped rod. The second arc-shaped rod is slidably connected to the outer wall of the direction rod in the second chute. At both ends of the second arc-shaped rod, a second rotating shaft is fixedly arranged. One end of the second rotating shaft is rotatably connected to the inner wall of the second driving seat. The bottom end of the direction rod is slidably connected to a circular shaft through a second slider. The bottom end of the circular shaft is slidably connected to the middle of the first driving seat through a first slider. A ratchet device is provided at the top end of the direction rod.

[0007] Preferably, the first driving seat includes a second motor, the second motor is arranged inside the first housing, a first bearing plate is arranged on the outer wall of the second motor, the output end of the second motor is arranged at the other end of the first transmission shaft, and the outer wall of the first transmission shaft is arranged at both ends of the first U-shaped block. The second driving seat includes a first motor, the first motor is arranged inside the first housing, a second bearing plate is arranged on the outer wall of the first motor, the output end of the first motor is arranged at the other end of the second transmission shaft, and the outer wall of the second transmission shaft is arranged at both ends of the second U-shaped block.

[0008] Preferably, the ratchet device includes a second housing, the lower surface of the second housing is arranged at the top end of the direction rod, a measuring tape is arranged on the outer wall of the second housing, a measuring probe is arranged on one side of the measuring tape, a fixed block is fixedly arranged at the bottom end inside the second housing, a second rotating shaft is fixedly arranged at one end of the upper surface of the fixed block, a ratchet pawl is rotatably connected to the outer wall of the second rotating shaft, a first rotating shaft is fixedly arranged at the other end of the upper surface of the fixed block, a ratchet wheel is rotatably connected to the outer wall of the first rotating shaft, and the tooth end of the ratchet wheel is connected to one end of the ratchet pawl.

[0009] Preferably, a sliding groove is arranged on the upper surface of the first housing, the direction rod is slidably connected in the sliding groove of the first housing, a stepping cavity is arranged on one side of the sliding groove, and a fixing mechanism is arranged at the bottom end of the first housing.

[0010] Preferably, the fixing mechanism includes a fixing rod, the outer wall of the fixing rod is fixedly arranged at the bottom end of the first housing, a conical head is fixedly arranged at the bottom end of the fixing rod, receiving grooves are symmetrically arranged on the outer wall of the fixing rod, a third rotating shaft is rotatably connected in the receiving groove of the fixing rod, an anti-detachment rod is fixedly connected to the outer wall of the third rotating shaft, a clamping block is fixedly arranged on one side of the anti-detachment rod, a top block is arranged at the bottom end of the clamping block, a pressing rod is slidably connected inside the fixing rod, a groove is arranged at the bottom end of the pressing rod, a top block is arranged at the bottom end of the groove of the pressing rod, a spring is arranged at the bottom end of the top block, and the bottom end of the spring is arranged at the bottom inner wall of the fixing rod.

[0011] An adjustable geological disaster crack measurement system for an adjustable geological disaster crack measurement device, including a data acquisition module, a data processing module, a communication module, and a control module.

[0012] The data acquisition module is used to obtain the distance, surface texture morphology, internal depth information, and multi-dimensional parameters of geological disaster cracks.

[0013] The data processing module is used to preprocess the data transmitted by the data acquisition module to remove noise interference.

[0014] The communication module is used to transmit the data collected and processed by the measuring probe to an external data storage and display terminal or a remote server in real time.

[0015] The control module is used to receive various instructions issued by an external control terminal and reasonably schedule other modules in the measurement probe to work in sequence.

[0016] Preferably, the data acquisition module includes a laser ranging unit, an image acquisition unit, and an ultrasonic detection unit. The laser ranging unit is used to emit a laser beam and receive the light reflected from the crack surface, measure the round-trip time of the laser, and calculate the distance between the measurement probe and different positions of the crack in combination with the principle of the speed of light. The image acquisition unit is used to use a high-resolution camera to capture images of geological disaster cracks in real time, capturing the surface texture and morphological visual features of the cracks. The ultrasonic detection unit is used to emit ultrasonic signals into the geological disaster cracks and then receive the reflected ultrasonic waves, and calculate the information of different depth positions inside the cracks based on the propagation speed and round-trip time of ultrasonic waves in the medium.

[0017] Preferably, the data processing module includes a preprocessing unit, a fusion calculation unit, and a feature extraction unit. The preprocessing unit is used to perform preliminary processing on the data received from each acquisition unit, removing the noise and interfering invalid data therein. The fusion calculation unit is used to integrate and analyze the preprocessed data, construct a three-dimensional space model of the crack using corresponding algorithms, and accurately calculate multi-dimensional parameters such as the width, depth, and length of the crack through operations such as calibration and supplementation. The feature extraction unit is used to screen and extract the key features of geological disaster cracks from the data after fusion processing.

[0018] Preferably, the communication module includes a wireless communication unit and a wired communication unit. The wireless communication unit is used to rely on Wi-Fi, Bluetooth, 4G / 5G wireless communication protocols to transmit the data collected and processed by the measurement probe to an external data storage and display terminal or a remote server in real time and stably without the need for physical cable connection. The wired communication unit is used to establish a stable data transmission link with external devices when needed through wired connection methods such as providing a USB interface and an Ethernet interface.

[0019] Preferably, the control module includes an instruction receiving unit, a task scheduling unit, and a status monitoring unit. The instruction receiving unit is used to receive various operation instructions issued by an external control terminal, including start measurement, stop measurement, and adjust measurement parameter instructions. The task scheduling unit is used to rely on the instructions of the external control terminal obtained by the instruction receiving unit. The status monitoring unit is used to monitor the working status of each module in the measurement probe in real time to check whether there are any faults. Once an abnormality is detected, it will promptly feedback the fault information to the external control terminal and take corresponding treatment measures according to the preset strategy.

[0020] Working principle: For angle adjustment, the motor 2 in the driving seat 1 drives the transmission shaft 1 to rotate, causing the arc rod 1 to rotate around the axis, and its slide 1 drives the direction rod to move; the motor 1 of the driving seat 2 drives the transmission shaft 2, driving the arc rod 2 to rotate, and its slide 2 also acts on the direction rod. The cooperation of the two allows the direction rod to achieve multi-angle flexible adjustment. The ratchet device at the top of the direction rod slides on the ratchet tooth surface when manually rotated. After the angle is adjusted, the ratchet is locked in the tooth groove and can be fine-tuned to ensure accurate and stable measurement of the angle.

[0021] In the fixing mechanism, when the device is placed, the cone head is inserted into the ground for initial fixation, and the pressure rod is pressed down by the pedal cavity. The pressure rod pushes the anti-drop rod to rotate three times around the rotating axis and retract into the storage slot. After loosening, the anti-drop rod rotates out and contacts the ground for secondary fixation to enhance stability.

[0022] In the data acquisition module, the laser ranging unit emits laser and receives reflected light, and calculates the distance between the probe and the crack based on the speed of light and the round-trip time; the image acquisition unit uses a high-resolution camera to capture the crack image in real time; the ultrasonic detection unit emits and receives ultrasonic waves, and determines the internal depth information of the crack based on the propagation speed and round-trip time.

[0023] The preprocessing unit of the data processing module removes invalid information such as noise from the collected data, the fusion calculation unit integrates and analyzes the data to build a three-dimensional model and calculate the multi-dimensional parameters of the cracks, and the feature extraction unit refines key features.

[0024] In the communication module, the wireless communication unit transmits data wirelessly via Wi-Fi, Bluetooth, and 4G / 5G protocols, and the wired communication unit transmits data via USB and Ethernet interfaces. The command receiving unit of the control module receives external commands, the task scheduling unit coordinates the work of each module according to the commands, and the status monitoring unit monitors and handles faults in real time to ensure the orderly operation of the device.

[0025] The present invention provides an adjustable geological disaster crack measuring device, which has the following beneficial effects:

[0026] 1. The present invention can achieve multi-angle adjustment through the direction rod. By accurately controlling the rotation angle, rotation speed and rotation direction of the motor 1 and the motor 2, the direction rod can be accurately aligned with geological disaster cracks of different directions and different inclination angles. The problem of being unable to measure cracks at multiple angles is solved.

[0027] 2. The present invention accurately locks the angle of the direction rod. After the angle adjustment is completed, the direction rod can be fixed at the required precise angle position by relying on the reliable engagement between the pawl and the ratchet, so that the measuring probe can always be aligned with the target crack for measurement, effectively avoiding the angle deviation caused by external factors, greatly improving the accuracy and stability of the angle during measurement, and thus ensuring the reliability of the measurement data and the accuracy of the crack measurement.

[0028] 3. The present invention further enhances the overall stability of the device on the ground by having the anti - detachment rod resist the ground from different directions and cooperate with the preliminary fixation formed by the conical head inserted into the ground, enabling it to be more firmly fixed at the measurement position and effectively resist various external forces that may cause the device to shake or displace.

[0029] 4. The present invention accurately measures the distances between the measurement probe and different positions of the crack through the laser ranging unit, which can provide basic data support for accurately calculating key parameters such as the width and depth of the crack subsequently. It can stably obtain distance data under different field environmental conditions, helping to improve the reliability of the entire measurement result and making the grasp of the spatial position relationship of the crack more accurate.

[0030] 5. Through the processing of the pre - processing unit, the present invention effectively improves the quality of the data. After removing noise and interfering invalid data, the data of each acquisition unit becomes more accurate and reliable, enabling subsequent operations such as fusion calculation and feature extraction based on these data to be carried out on the basis of high - quality data, avoiding analysis result deviations caused by poor quality of the original data, and improving the accuracy and credibility of the entire data processing process and the final measurement result. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a front - side three - dimensional schematic diagram of the present invention;

[0032] Figure 2 is a three - dimensional structural cross - sectional view of the first housing of the present invention;

[0033] Figure 3 is a partial three - dimensional schematic diagram of the ratchet of the present invention;

[0034] Figure 4 is a partial three - dimensional schematic diagram of the first arc - shaped rod of the present invention;

[0035] Figure 5 is a partial three - dimensional schematic diagram of the anti - detachment rod of the present invention;

[0036] Figure 6 is a partial three - dimensional schematic diagram of the fixing rod of the present invention;

[0037] Figure 7 is a partial three - dimensional cross - sectional view of the conical head of the present invention;

[0038] Figure 8 is a partial three - dimensional cross - sectional view of the pressing rod of the present invention;

[0039] Figure 9 is a structural diagram of an adjustable geological disaster crack measurement system of the present invention;

[0040] Figure 10 It is the system architecture diagram of the data acquisition module of the present invention;

[0041] Figure 11 It is the system architecture diagram of the data processing module of the present invention;

[0042] Figure 12 It is the system architecture diagram of the communication module of the present invention;

[0043] Figure 13 It is the system architecture diagram of the control module of the present invention.

[0044] Among them, 1. Housing 1; 2. Housing 2; 3. Measuring tape; 4. Measuring probe; 5. Slide groove; 6. Trampling cavity; 7. Pressing rod; 8. Fixed rod; 9. Storage groove; 10. Anti-disengagement rod; 11. Tapered head; 12. Ratchet; 13. Rotating shaft 1; 14. Pawl; 15. Rotating shaft 2; 16. Fixed block; 17. Arc rod 1; 18. U-shaped block 1; 19. Arc rod 2; 20. Motor 1; 21. U-shaped block 2; 22. Circular shaft; 23. Motor 2; 24. Direction rod; 25. Slide block 1; 26. Slide block 2; 27. Top block; 28. Clamping block; 29. Spring; 30. Rotating shaft 3. Specific embodiments

[0045] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0046] Please refer to the attached Figure 1 - attached Figure 2 、 attached Figure 4, an embodiment of the present invention provides an adjustable geological disaster crack measurement device, including a first housing 1. At the bottom end inside the first housing 1, a first driving seat and a second driving seat are fixedly arranged. At both ends of the inner wall of the first driving seat, a first transmission shaft is provided. At one end of the first transmission shaft, a first arc-shaped rod 17 is fixedly arranged. In the middle of the first arc-shaped rod 17, a first chute is provided. A direction rod 24 is slidably connected in the first chute of the first arc-shaped rod 17. At the bottom end of the first arc-shaped rod 17, a second arc-shaped rod 19 is provided. In the middle of the second arc-shaped rod 19, a second chute is provided. The second chute of the second arc-shaped rod 19 is slidably connected to the outer wall of the direction rod 24. At both ends of the second arc-shaped rod 19, a second rotating shaft is fixedly arranged. One end of the second rotating shaft is rotatably connected to the inner wall of the second driving seat. The bottom end of the direction rod 24 is slidably connected to a circular shaft 22 through a second slider 26. The bottom end of the circular shaft 22 is slidably connected to the middle of the first driving seat through a first slider 25. At the top end of the direction rod 24, a ratchet device is provided; The first driving seat includes a second motor 23. The second motor 23 is arranged inside the first housing 1. A first bearing plate is arranged on the outer wall of the second motor 23. The output end of the second motor 23 is arranged at the other end of the first transmission shaft. The outer wall of the first transmission shaft is arranged at both ends of a first U-shaped block 18. The second driving seat includes a first motor 20. The first motor 20 is arranged inside the first housing 1. A second bearing plate is arranged on the outer wall of the first motor 20. The output end of the first motor 20 is arranged at the other end of a second transmission shaft. The outer wall of the second transmission shaft is arranged at both ends of a second U-shaped block 21.

[0047] Specifically, the second motor 23 on the first driving seat is arranged inside the first housing 1. A first bearing plate is equipped on the outer wall of the second motor 23. The first bearing plate not only provides a stable support for the second motor 23 but also ensures the stability of the motor during operation. When the second motor 23 receives a corresponding control signal and starts to rotate, its output end will drive the connected first transmission shaft to rotate. The outer wall of the first transmission shaft is embedded at both ends of the first U-shaped block 18. The first U-shaped block 18 plays a key role in limiting and assisting the stable rotation, ensuring that the first transmission shaft can smoothly perform circular motion around its own axis. Since one end of the first transmission shaft is fixedly connected to the first arc-shaped rod 17, as the first transmission shaft rotates, the first arc-shaped rod 17 will also rotate synchronously around the axis of the first transmission shaft.

[0048] During the rotation of the first arc-shaped rod 17, the direction rod 24 slidably connected in its first chute will move accordingly. The direction rod 24 will slide along the track of the first chute. The bottom end of the direction rod 24 is slidably connected to the circular shaft 22 through the second slider 26. The bottom end of the circular shaft 22 is slidably connected to the middle of the first driving seat through the first slider 25. Such a connection method enables the direction rod 24 to flexibly change its position and angle within a certain range while maintaining a relatively stable state according to the rotation of the first arc-shaped rod 17 when following the first arc-shaped rod 17.

[0049] Drive seat two has a similar logical structure to drive seat one in terms of its working principle. Motor one 20 is also installed inside housing one 1, and the bearing plate two on its outer wall provides reliable support and fixation for motor one 20. When motor one 20 starts and rotates, its output end drives the second transmission shaft to rotate. The outer wall of the second transmission shaft is arranged at both ends of U-shaped block two 21, and U-shaped block two 21 ensures the stability and accuracy of the second transmission shaft during rotation. Connected to the second transmission shaft is the second rotating shaft, and the second rotating shaft is fixed at both ends of arc-shaped rod two 19. Therefore, the rotation of motor one 20 will drive arc-shaped rod two 19 to perform circular motion around the second rotating shaft.

[0050] Moreover, the second chute provided in the middle of arc-shaped rod two 19 also has a close connection with direction rod 24. When arc-shaped rod two 19 starts to rotate driven by motor one 20, its second chute will drive the outer wall of direction rod 24 that is slidably connected thereto to move, and direction rod 24 will slide along the track of the second chute. The coordinated operation of motor two 23 and motor one 20 respectively precisely controls the rotation of arc-shaped rod one 17 and arc-shaped rod two 19. The two influence and interact with each other, enabling direction rod 24 to achieve flexible and orderly movement and precise adjustment of angles in multiple dimensions.

[0051] Multi-angle adjustment can be achieved through direction rod 24. By precisely controlling the rotation angle, rotation speed, and rotation direction of motor one 20 and motor two 23, direction rod 24 can accurately align with geological disaster cracks with different orientations and different inclination angles, solving the problem of being unable to measure cracks from multiple angles.

[0052] Please refer to the appendix Figure 2 - appendix Figure 3 Specifically, housing two 2 serves as the external protection and load-bearing structure of the entire ratchet device. Its lower surface is stably arranged at the top of direction rod 24, enabling the entire ratchet device to move together with direction rod 24. A measuring tape 3 is arranged on the outer wall of housing two 2. The measuring tape 3 can be used to assist in measuring relevant parameters such as the length of the crack, and a measuring probe 4 is arranged on one side of the measuring tape 3. The measuring probe 4 is the core component for achieving multi-dimensional measurement of geological disaster cracks.

[0053] Specifically, housing two 2, as the external protection and load-bearing structure of the entire ratchet device, has its lower surface firmly arranged at the top of direction rod 24, so that the entire ratchet device can move together with direction rod 24. A measuring tape 3 is arranged on the outer wall of housing two 2. The measuring tape 3 can be used to assist in measuring relevant parameters such as the length of the crack, and a measuring probe 4 is arranged on one side of the measuring tape 3. The measuring probe 4 is the core component for achieving multi-dimensional measurement of geological disaster cracks.

[0054] At the inner bottom end of the housing two 2, a fixing block 16 is fixedly arranged, which provides a stable installation foundation for the key rotating components inside the device. One end of the upper surface of the fixing block 16 is fixedly provided with a rotating shaft two 15, and the outer wall of the rotating shaft two 15 is rotatably connected with a pawl 14, which enables the pawl 14 to rotate flexibly around the rotating shaft two 15. At the other end of the upper surface of the fixing block 16, a rotating shaft one 13 is fixedly arranged, and the outer wall of the rotating shaft one 13 is rotatably connected with a ratchet 12, and the tooth end of the ratchet 12 is connected with one end of the pawl 14.

[0055] When it is necessary to adjust the angle of the direction rod 24 and the measurement probe 4 connected thereto, the operator manually rotates the direction rod 24. At this time, the housing two 2 and the internal ratchet 12 connected to the top end of the direction rod 24 will rotate synchronously. During the rotation process, the pawl 14 will slide along the tooth surface of the ratchet 12. Since the pawl 14 can rotate around the rotating shaft two 15, it will not hinder the rotation of the ratchet 12, enabling the direction rod 24 to smoothly perform the angle adjustment operation.

[0056] When adjusted to the appropriate angle, the pawl 14 will snap into the tooth groove of the ratchet 12 under the action of its own gravity, thereby preventing the ratchet 12 from rotating in the reverse direction and realizing the one-way locking of the rotation angle of the direction rod 24. In this way, it can be ensured that during the measurement process, the set angles of the direction rod 24 and the measurement probe 4 will not easily change, guaranteeing the stability of the measurement angle.

[0057] If fine adjustment of the angle is required subsequently, the operator can apply a certain external force to overcome the engagement resistance between the pawl 14 and the ratchet 12, and again make the pawl 14 rotate around the rotating shaft two 15 and disengage from the current tooth groove of the ratchet 12, and then continue to rotate the direction rod 24 for a small-angle adjustment. After the adjustment is completed, the pawl 14 will snap into a new tooth groove again to complete the locking after the fine adjustment of the angle.

[0058] Through the precise locking of the angle of the direction rod 24. After the angle adjustment is completed, relying on the reliable engagement between the pawl 14 and the ratchet 12, the direction rod 24 can be fixed at the required precise angle position, enabling the measurement probe 4 to always be aligned with the target crack for measurement, effectively avoiding the situation of angle deviation caused by external factors, greatly improving the accuracy and stability of the angle during measurement, and thus ensuring the reliability of the measurement data and the precision of the crack measurement.

[0059] Please refer to Appendix Figure 1 Appendix Figure 5 - Appendix Figure 8, a chute 5 is provided on the upper surface of the first housing 1. The direction rod 24 is slidably connected within the chute 5 of the first housing 1. A stepping cavity 6 is provided on one side of the chute 5, and a fixing mechanism is provided at the bottom end of the first housing 1. The fixing mechanism includes a fixing rod 8. The outer wall of the fixing rod 8 is fixedly arranged at the bottom end of the first housing 1. A conical head 11 is fixedly arranged at the bottom end of the fixing rod 8. Receiving grooves 9 are symmetrically arranged on the outer wall of the fixing rod 8. A third rotating shaft 30 is rotatably connected within the receiving groove 9 of the fixing rod 8. A retaining rod 10 is fixedly connected to the outer wall of the third rotating shaft 30. A clamping block 28 is fixedly arranged on one side of the retaining rod 10. A top block 27 is arranged at the bottom end of the clamping block 28. A pressing rod 7 is slidably connected within the fixing rod 8. A groove is arranged at the bottom end of the pressing rod 7. A top block 27 is arranged at the bottom end of the groove of the pressing rod 7. A spring 29 is arranged at the bottom end of the top block 27, and the bottom end of the spring 29 is arranged at the bottom end of the inner wall of the fixing rod 8.

[0060] Specifically, the chute 5 provided on the upper surface of the first housing 1 provides guiding and limiting functions for the movement of the direction rod 24. The direction rod 24 is slidably connected within the chute 5. When the first driving seat and the second driving seat work to drive the first arc rod 17 and the second arc rod 19 to rotate, and then adjust the angle of the direction rod 24, the chute 5 can ensure that the direction rod 24 slides smoothly along the established track, limit its unnecessary displacement in other directions, and ensure the normality of the movement of the direction rod 24 and the stability of the entire adjustment process.

[0061] The fixing mechanism mainly relies on the cooperation of the fixing rod 8 and its related components to achieve the function of firm fixation. The outer wall of the fixing rod 8 is fixedly connected to the bottom end of the first housing 1. The conical head 11 fixedly arranged at its bottom end, when the device is placed at the measurement position, first uses the sharp shape of the conical head 11 itself. By applying a certain downward pressure, the conical head 11 is inserted into the ground to achieve the preliminary fixed connection between the device and the ground. Receiving grooves 9 are symmetrically arranged on the outer wall of the fixing rod 8. A retaining rod 10 is rotatably connected within the receiving groove 9 through a third rotating shaft 30. A clamping block 28 is fixedly arranged on one side of the retaining rod 10, and a top block 27 is arranged at the bottom end of the clamping block 28. At the same time, a pressing rod 7 is slidably connected within the fixing rod 8. A groove is arranged at the bottom end of the pressing rod 7, and a top block 27 is also arranged at the bottom end of this groove. The bottom end of the top block 27 is connected to a spring 29, and the bottom end of the spring 29 is arranged at the bottom end of the inner wall of the fixing rod 8.

[0062] The staff can step on the pedal chamber 6 and use their feet to step on the pressure lever 7 for a pressing operation. During the process of stepping on the pressure lever 7, the middle part of its bottom end will touch the top block 27. As the pressure lever 7 continues to be pressed down, a downward pressure will be exerted on the top block 27, and the top block 27 will compress the spring 29. At the same time, the edge of the bottom end of the pressure lever 7 will press on the clamping block 28. Since the clamping block 28 is fixedly connected to the anti-disengagement rod 10, under the pressing action of the pressure lever 7, the clamping block 28 will exert an inward rotational torque on the anti-disengagement rod 10 through the third rotating shaft 30, causing the anti-disengagement rod 10 to rotate around the third rotating shaft 30 and then retract into the storage groove 9.

[0063] When the foot releases the stepping on the pressure lever 7, under the elastic force of the spring 29, the top block 27 will push the pressure lever 7 upward to reset. The pressure lever 7 no longer exerts pressure on the clamping block 28, and the anti-disengagement rod 10 loses the external force that causes it to retract. At this time, the anti-disengagement rod 10 will rotate in the reverse direction around the third rotating shaft 30 under the elastic force of the spring 29 and re-emerge from the storage groove 9, returning to the original state of extending and contacting the ground. When the anti-disengagement rod 10 extends, the clamping block 28 on one side of it will closely fit with the ground, achieving the function of secondary fixation by increasing the contact area and friction with the ground.

[0064] By the anti-disengagement rod 10 resisting the ground from different directions and cooperating with the preliminary fixation formed by the conical head 11 inserted into the ground, the overall stability of the device on the ground is further enhanced, enabling it to be more firmly fixed at the measurement position and effectively resisting various external forces that may cause the device to shake or displace.

[0065] Please refer to the attached Figure 9 - attached Figure 13 ., an adjustable geological disaster crack measurement system, for an adjustable geological disaster crack measurement device, including a data acquisition module, a data processing module, a communication module, and a control module.

[0066] The data acquisition module is used to obtain the distance, surface texture morphology, internal depth information, and multi-dimensional parameters of the geological disaster crack.

[0067] The data processing module is used to preprocess the data transmitted by the data acquisition module and remove noise interference.

[0068] The communication module is used to transmit the data collected and processed by the measurement probe to an external data storage and display terminal or a remote server in real time.

[0069] The control module is used to receive various instructions issued by an external control terminal and reasonably schedule other modules in the measurement probe to work in sequence.

[0070] The data acquisition module includes a laser ranging unit, an image acquisition unit, and an ultrasonic detection unit. The laser ranging unit is used to emit a laser beam and receive the light reflected from the crack surface, measure the round-trip time of the laser, and calculate the distance between the measurement probe and different positions of the crack in combination with the principle of the speed of light. The image acquisition unit is used to use a high-resolution camera to take real-time images of geological disaster cracks, capture the surface texture and morphological visual features of the cracks. The ultrasonic detection unit is used to emit ultrasonic signals into the geological disaster cracks and then receive the reflected ultrasonic waves, and calculate the information of different depth positions inside the cracks based on the propagation speed and round-trip time of the ultrasonic waves in the medium.

[0071] Specifically, the laser ranging unit mainly relies on the laser emission and reception device to carry out its work. When measuring geological disaster cracks, the laser emitter inside it will emit laser beams towards the target geological disaster cracks at a set frequency and power. After these laser beams encounter the crack surface, a reflection phenomenon will occur, and the reflected light will be accurately captured by the laser receiver equipped with the laser ranging unit.

[0072] The image acquisition unit is equipped with a high-resolution camera. When measuring geological disaster cracks, the camera will be placed at a suitable position so that its lens can be aligned with the crack area to be measured. After a start signal is given through the control circuit, the camera starts to work in real time. Using its internal optical imaging system and photosensitive elements, it focuses, captures the light information of the crack, and converts it into a digital image signal. During the shooting process, the camera will continuously shoot the crack according to the preset shooting parameters, such as frame rate, resolution, exposure time, etc., and capture various visual features such as the surface texture and morphology of the crack. These visual features include the width change of the crack, the roughness of the edge, whether there are branches, and the overall trend morphology, etc., so as to record the actual appearance of the crack in the form of an image for subsequent further analysis and processing.

[0073] Inside the ultrasonic detection unit, there are an ultrasonic transmitter and a corresponding ultrasonic receiver. When starting to detect geological disaster cracks, the ultrasonic transmitter will emit ultrasonic signals with specific frequencies and intensities into the cracks according to the set parameters. These ultrasonic signals will propagate in the medium inside the cracks (such as geological structures composed of different substances like rocks and soils). During the propagation process, when encountering the interface between different media or different structures inside the cracks, part of the ultrasonic waves will be reflected. The reflected ultrasonic signals will be received by the ultrasonic receiver. From the time when the ultrasonic waves are emitted to the time when they are received back, there is also a timing device to record the round-trip time. Since the propagation speed of ultrasonic waves in different media is known (for example, the propagation speed in common rocks is about a certain specific value range, and there are corresponding speed ranges in soils, etc.), based on the propagation speed of ultrasonic waves in the corresponding medium and the measured round-trip time, using the distance calculation formula (distance equals half of the product of speed and time), the information of different depth positions inside the cracks can be calculated, and then the internal structural characteristics and approximate shape of the cracks in the depth direction can be depicted, etc.

[0074] By accurately measuring the distances between the measurement probe and different positions of the crack through the laser ranging unit, it can provide basic data support for accurately calculating key parameters such as the width and depth of the crack in the subsequent process. For example, when measuring the width of a crack with a certain inclination angle, the distance data between the measurement probe and the two side edges of the crack at different positions can be measured, and the accurate width value can be obtained through simple difference operations. Moreover, laser ranging has high precision and accuracy, and can stably obtain distance data under different field environmental conditions (as long as the basic requirements for laser propagation are met, such as no serious occlusion, etc.), which helps to improve the reliability of the entire measurement result and makes the grasp of the spatial position relationship of the crack more accurate.

[0075] The data processing module includes a preprocessing unit, a fusion calculation unit, and a feature extraction unit. The preprocessing unit is used to perform preliminary processing on the data received from each acquisition unit, removing the noise and interfering invalid data. The fusion calculation unit is used to integrate and analyze the preprocessed data, construct a three-dimensional space model of the crack using corresponding algorithms, and accurately calculate multi-dimensional parameters such as the width, depth, and length of the crack through operations such as calibration and supplementation. The feature extraction unit is used to screen and extract the key features of the geological disaster crack from the data after fusion processing.

[0076] Specifically, as the first checkpoint for data to enter the processing flow, the preprocessing unit's working principle is mainly based on a series of data processing algorithms and technical means. When receiving data from various acquisition units such as the laser ranging unit, image acquisition unit, and ultrasonic detection unit, it first uses filtering algorithms to remove the noise components in the data. For example, the distance data obtained by the laser ranging unit may be affected by external environmental light interference, instrument's own electrical signal fluctuations, etc., generating noise. Through digital filtering algorithms (such as mean filtering, median filtering, etc.), the continuous distance measurement values are smoothed, and the abnormal values deviating from the normal range are removed, thus obtaining relatively stable and accurate distance data.

[0077] After receiving various data processed by the preprocessing unit, the fusion calculation unit starts to work. It first integrates the distance data between the measurement probe and different positions of the crack obtained by the laser ranging unit, the crack surface image feature data obtained by the image acquisition unit, and the crack internal depth position information detected by the ultrasonic detection unit, etc., according to the characteristics of each data and the corresponding spatial coordinate information.

[0078] The feature extraction unit mainly operates on the crack three-dimensional space model constructed by the fusion calculation unit and the related data after fusion processing. It uses relevant algorithms and technologies such as pattern recognition and machine learning to screen and extract the key features of geological disaster cracks from complex data sets.

[0079] Through the processing of the preprocessing unit, the quality of the data is effectively improved. After removing noise and interfering invalid data, the data of each acquisition unit becomes more accurate and reliable, enabling subsequent operations such as fusion calculation and feature extraction based on these data to be carried out on the basis of high-quality data, avoiding analysis result deviations caused by poor quality of the original data, and improving the accuracy and credibility of the entire data processing flow and the final measurement results.

[0080] The communication module includes a wireless communication unit and a wired communication unit. The wireless communication unit is used to rely on Wi-Fi, Bluetooth, 4G / 5G wireless communication protocols to transmit the data collected and processed by the measurement probe to the external data storage and display terminal or remote server in real time and stably without physical cable connection. The wired communication unit is used to establish a stable data transmission link with external devices through wired connection methods such as providing USB interfaces and Ethernet interfaces when needed.

[0081] Specifically, the wireless communication unit mainly implements the data transmission function based on a variety of mature wireless communication protocols. During the operation of the device, when the measurement probe collects and the processing module processes the corresponding data, the wireless communication unit will first package these data, encapsulating them into data packets suitable for transmission according to a specific data format.

[0082] For the Wi-Fi protocol, the Wi-Fi module in the wireless communication unit will scan the surrounding available Wi-Fi networks, connect and authenticate with the preset or manually selected target Wi-Fi hotspot by the operator. After successful connection, following the communication mechanism specified by the IEEE802.11 standard, the data packet is sent out through the wireless channel. It uses radio frequency signals to propagate in the air, carrying data information in a specific frequency band (such as the common 2.4GHz or 5GHz band), and through a series of operations such as modulation, encoding, demodulation, and decoding, it conducts data interaction with external data storage and display terminals (such as laptops, tablets, etc.) or remote servers connected to the same Wi-Fi network to achieve data upload.

[0083] Under the Bluetooth protocol, the Bluetooth module in the wireless communication unit will start the search mode, find nearby Bluetooth devices in a pairable state, and pair and connect with them (usually based on the pairing process specified by the Bluetooth standard, such as entering a pairing code, etc.). Once the pairing is successful, according to the Bluetooth communication specification, within its operating frequency band (generally some channels in the 2.4GHz band), the frequency hopping spread spectrum technology is used to avoid interference, and the data packet is sent to the paired external device, such as a nearby handheld mobile terminal, etc., facilitating the operator to quickly obtain data on-site for viewing and preliminary analysis.

[0084] In the 4G / 5G communication scenario, the corresponding 4G / 5G communication module in the wireless communication unit will interact with nearby base stations, and access the operator's network through processes such as registration and authentication. With the high-speed data transmission capabilities of 4G (based on relevant technical standards such as LTE) or 5G (using advanced technologies such as millimeter waves and large-scale MIMO), the data packet is transmitted along the communication link constructed by the base station and the core network to a remote server or a specified remote data storage and display terminal, achieving remote, efficient, and stable data sharing, and meeting the data transmission requirements in different distances and different application scenarios.

[0085] The wired communication unit relies on wired connection methods such as the provided USB interface and Ethernet interface to ensure the stability of the data transmission link.

[0086] When using the USB interface, the internal USB controller follows the USB standard (such as the transmission specifications corresponding to different versions like USB2.0, USB3.0, etc.). After physically connecting to an external device (such as a computer host) through a USB data cable, it will perform initialization operations such as device enumeration, enabling the external device to recognize the measuring device and establish a communication link. Then, according to the transmission modes specified by the USB protocol (such as bulk transfer, interrupt transfer, etc., and select the appropriate mode according to the data type and transmission requirements), the data collected and processed by the measuring probe is transmitted in the form of electrical signals along the signal lines in the data cable, achieving stable data transmission from the measuring device to the external device. It can be used for data interaction in scenarios with short distances and high requirements for transmission speed and stability, such as quickly transmitting data to a local data analysis workstation for in-depth processing.

[0087] For the Ethernet interface, its internal Ethernet controller follows the IEEE802.3 standard and is connected to external switches, routers, or other devices supporting the Ethernet interface through network cables (such as common Category 5 cables, Category 6 cables, etc.). After completing network configuration steps such as link negotiation and IP address assignment, the data is encapsulated into frames according to the Ethernet frame format and transmitted in the form of electrical signals through the twisted pairs in the network cable based on mechanisms such as CSMA / CD (Carrier Sense Multiple Access / Collision Detection) in a local area network or wide area network environment, realizing connection with external data storage and display terminals, servers, and other devices. It can be used to build a more stable network environment suitable for large data volume transmission, especially suitable for scenarios where a large amount of measurement data is centrally managed and analyzed in fixed locations such as offices and monitoring centers.

[0088] The wireless data transmission achieved through the wireless communication unit greatly improves the convenience and flexibility of using the measuring device. When measuring geological disaster cracks in a complex field environment, there is no need to lay physical cables anymore. Operators can conveniently transmit the measurement data to a nearby mobile terminal in real-time for viewing, quickly understand the measurement situation, and make adjustments and decisions in a timely manner. For example, when measuring in remote mountainous areas, the 4G / 5G network can be used to remotely transmit data to the server in the monitoring center, enabling professional personnel to grasp the crack dynamics in real-time without reaching the site, realizing remote monitoring and management, improving work efficiency, and saving labor and material costs.

[0089] The control module includes an instruction receiving unit, a task scheduling unit, and a status monitoring unit. The instruction receiving unit is used to receive various operation instructions issued by an external control terminal, including start measurement, stop measurement, and adjust measurement parameter instructions. The task scheduling unit is used to act according to the instructions of the external control terminal obtained by the instruction receiving unit. The status monitoring unit is used to monitor the working status of each module in the measurement probe in real time to check whether there is a fault. Once an abnormality is detected, it will promptly feedback the fault information to the external control terminal and take corresponding treatment measures according to a preset strategy.

[0090] Specifically, as the front-end part of the interaction between the control module and the external control terminal, the instruction receiving unit works based on specific communication protocols and interface standards. When the external control terminal (such as a handheld controller, a remote monitoring computer, etc.) issues various operation instructions, these instructions will be transmitted to the instruction receiving unit through a wired (such as following the corresponding communication protocol to transmit instruction data in connection modes like USB cables, Ethernet cables, etc.) or wireless (relying on wireless communication protocols such as Wi-Fi, Bluetooth, 4G / 5G, etc. to carry instruction information) communication link in a corresponding data format.

[0091] The instruction receiving unit is internally equipped with a dedicated communication interface module and a data parsing module. The communication interface module is responsible for receiving the incoming signal, converting it into digital signal-formatted data, and then passing it to the data parsing module. The data parsing module will identify and parse these data according to the pre-set instruction coding rules, determine which specific type of instruction it is, such as start measurement, stop measurement, adjust measurement parameters (such as adjusting parameters like the frequency of laser ranging, the resolution of image acquisition, etc.), and then pass the parsed valid instruction information to the task scheduling unit to prepare for subsequent task execution.

[0092] The task scheduling unit starts to operate after receiving the parsed instructions from the instruction receiving unit. It internally stores a complete set of task scheduling logics and a mapping table of the working processes of each module.

[0093] For example, when receiving a start measurement instruction, the task scheduling unit will, in accordance with the preset order, first send a start signal to the data acquisition module to trigger the laser ranging unit, the image acquisition unit, the ultrasonic detection unit, etc. to start working, and let them perform data acquisition according to their respective set parameters and modes; then, it will notify the data processing module to be ready to receive data, coordinate the preprocessing unit, the fusion calculation unit, the feature extraction unit, etc. to enter the working state in turn to ensure that the acquired data can be processed in a timely manner; at the same time, it will also send corresponding instructions to the communication module to make the wireless communication unit or the wired communication unit be in a standby state to prepare for subsequent data transmission work.

[0094] If the received instruction is to adjust the measurement parameters, the task scheduling unit can accurately determine which specific acquisition unit or processing unit the parameter adjustment is for, and then precisely convey the corresponding parameter modification instruction to the corresponding module, enabling it to adjust its work according to the new parameter requirements. Throughout this process, the task scheduling unit is like a command center, coordinating each module to work orderly according to different instructions, ensuring the smooth progress of the entire measurement process.

[0095] The status monitoring unit obtains the working status information of each module in real time by establishing a communication connection with each module (data acquisition module, data processing module, communication module, etc.) in the measurement probe or by using built-in sensors.

[0096] For the laser ranging unit in the data acquisition module, it monitors whether the signal intensity, frequency, etc. of laser emission and reception are within the normal range, as well as parameters such as the temperature of the device to determine whether there are abnormalities; for the image acquisition unit, it pays attention to the imaging quality of the camera, the frame rate stability, whether there is an image transmission interruption, etc.; the ultrasonic detection unit checks the emission and reception of ultrasonic signals, whether the waveform of the signal is normal, etc.

[0097] In the data processing module, it monitors the data processing speed of each unit, whether there are phenomena such as data congestion or processing errors; the communication module detects the link status of the wired connection, the strength and stability of the wireless signal, etc.

[0098] The status monitoring unit is equipped with a comparison and judgment mechanism, which compares the status parameters of each module obtained in real time with the preset normal working status threshold range. Once it is found that a certain parameter of a certain module exceeds the normal range, it is determined that the module has an abnormal situation. At this time, the status monitoring unit will immediately feedback a fault report containing detailed information such as the fault module identifier and the specific fault phenomenon to the external control terminal through the communication link (using a wired or wireless method similar to the instruction transmission). Moreover, it will also perform operations such as attempting to automatically restart the corresponding module for some minor faults or resetting the parameters of some modules according to the preset fault handling strategy, minimizing the impact of the fault on the measurement work and ensuring the continuous and stable operation of the entire measurement system.

[0099] The instruction receiving unit supports multiple communication methods and has rigorous data parsing capabilities, ensuring that the external control terminal can accurately and reliably issue various operation instructions to the measurement device. Regardless of the distance, the operator can conveniently control the start, stop, parameter adjustment and other states of the device, improving the flexibility and accuracy of the operation and solving the problems of inconvenient operation and inaccurate instruction transmission.

[0100] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable geological disaster crack measuring device, comprising a housing (1), characterized in that: A driving seat 1 and a driving seat 2 are fixedly arranged at the inner bottom end of the shell 1, a transmission shaft 1 is arranged at both ends of the inner wall of the driving seat 1, an arc-shaped rod 1 (17) is fixedly arranged at one end of the transmission shaft 1, a slide groove 1 is arranged in the middle of the arc-shaped rod 1 (17), a direction rod (24) is slidably connected in the slide groove 1 of the arc-shaped rod 1 (17), an arc-shaped rod 2 (19) is arranged at the bottom end of the arc-shaped rod 1 (17), a slide groove 2 is arranged in the middle of the arc-shaped rod 2 (19), and the The second arc rod (19) is slidably connected to the outer wall of the direction rod (24) in the second slide groove, and the two ends of the second arc rod (19) are fixedly provided with a second rotating shaft, and one end of the second rotating shaft is rotatably connected to the inner wall of the second driving seat, and the bottom end of the direction rod (24) is slidably connected to the circular shaft (22) through the second slider (26), and the bottom end of the circular shaft (22) is slidably connected to the middle part of the first driving seat through the first slider (25), and the top end of the direction rod (24) is provided with a ratchet device.

2. The adjustable geological disaster crack measuring device according to claim 1 is characterized in that: The driving seat 1 includes a motor 2 (23), the motor 2 (23) is arranged inside the shell 1 (1), the outer wall of the motor 2 (23) is provided with a bearing plate 1, the output end of the motor 2 (23) is arranged at the other end of the transmission shaft 1, the outer wall of the transmission shaft 1 is arranged at the two ends of the U-shaped block 1 (18), the driving seat 2 includes a motor 1 (20), the motor 1 (20) is arranged inside the shell 1 (1), the outer wall of the motor 1 (20) is provided with a bearing plate 2, the output end of the motor 1 (20) is arranged at the other end of the transmission shaft 2, and the outer wall of the transmission shaft 2 is arranged at the two ends of the U-shaped block 2 (21).

3. The adjustable geological disaster crack measuring device according to claim 1 is characterized in that: The ratchet device comprises a second shell (2), the lower surface of the second shell (2) is arranged at the top end of the direction rod (24), the outer wall of the second shell (2) is provided with a tape measure (3), one side of the tape measure (3) is provided with a measuring probe (4), a fixed block (16) is fixedly provided at the bottom end of the inner part of the second shell (2), a second rotating shaft (15) is fixedly provided at one end of the upper surface of the fixed block (16), the outer wall of the second rotating shaft (15) is rotatably connected to a ratchet (14), the other end of the upper surface of the fixed block (16) is fixedly provided with a first rotating shaft (13), the outer wall of the first rotating shaft (13) is rotatably connected to a ratchet (12), and the tooth end of the ratchet (12) is connected to one end of the ratchet (14).

4. The adjustable geological disaster crack measuring device according to claim 1 is characterized in that: The upper surface of the shell one (1) is provided with a slide groove (5), the direction rod (24) is slidably connected in the slide groove (5) of the shell one (1), a pedal cavity (6) is provided on one side of the slide groove (5), and a fixing mechanism is provided at the bottom end of the shell one (1).

5. The adjustable geological disaster crack measuring device according to claim 4 is characterized in that: The fixing mechanism comprises a fixing rod (8), the outer wall of the fixing rod (8) is fixedly arranged at the bottom end of the shell body (1), the bottom end of the fixing rod (8) is fixedly arranged with a cone head (11), the outer wall of the fixing rod (8) is symmetrically arranged with a receiving groove (9), the receiving groove (9) of the fixing rod (8) is rotatably connected with a rotating shaft (30), the outer wall of the rotating shaft (30) is fixedly connected with an anti-slip rod (10), a clamping block (28) is fixedly arranged on one side of the anti-slip rod (10), the bottom end of the clamping block (28) is provided with a top block (27), the inside of the fixing rod (8) is slidably connected with a pressure rod (7), the bottom end of the pressure rod (7) is provided with a groove, the bottom end of the groove of the pressure rod (7) is provided with a top block (27), the bottom end of the top block (27) is provided with a spring (29), and the bottom end of the spring (29) is arranged at the bottom end of the inner wall of the fixing rod (8).

6. An adjustable geological disaster crack measurement system, used for an adjustable geological disaster crack measurement device according to any one of claims 1 to 5, comprising a data acquisition module, a data processing module, a communication module, and a control module. The data acquisition module is used to obtain the distance, surface texture, internal depth information and multi-dimensional parameters of geological disaster cracks. The data processing module is used to pre-process the data transmitted by the data acquisition module to remove noise interference. The communication module is used to transmit the data collected and processed by the measuring probe to an external data storage and display terminal or a remote server in real time. The control module is used to receive various instructions issued by the external control terminal, and reasonably dispatch other modules in the measuring probe to work in sequence.

7. The adjustable geological disaster crack measurement system according to claim 6, characterized in that: The data acquisition module includes a laser ranging unit, an image acquisition unit, and an ultrasonic detection unit. The laser ranging unit is used to emit a laser beam and receive the light reflected from the crack surface, measure the laser round-trip time, and calculate the distance between the measuring probe and different positions of the crack in combination with the principle of the speed of light. The image acquisition unit is used to use a high-resolution camera to take images of geological disaster cracks in real time to capture the surface texture and morphological visual features of the cracks. The ultrasonic detection unit is used to emit ultrasonic signals into the geological disaster cracks, and then receive the reflected ultrasonic waves, and calculate the information of different depth positions inside the crack based on the propagation speed of the ultrasonic wave in the medium and the round-trip time.

8. The adjustable geological disaster crack measurement system according to claim 6, characterized in that: The data processing module includes a preprocessing unit, a fusion calculation unit, and a feature extraction unit. The preprocessing unit is used to perform preliminary processing on the data received from each acquisition unit to remove noise and interference invalid data. The fusion calculation unit is used to integrate and analyze the preprocessed data, use the corresponding algorithm to build a three-dimensional spatial model of the crack, and accurately calculate the multi-dimensional parameters of the width, depth, and length of the crack through calibration, supplementation and other operations. The feature extraction unit is used to screen and extract the key features of geological disaster cracks from the fused data.

9. The adjustable geological disaster crack measurement system according to claim 6, characterized in that: The communication module includes a wireless communication unit and a wired communication unit. The wireless communication unit is used to rely on Wi-Fi, Bluetooth, 4G / 5G wireless communication protocols to transmit the data collected and processed by the measurement probe to an external data storage and display terminal or a remote server in real time and stably without the need for physical cable connection. The wired communication unit is used to establish a stable data transmission link with an external device when necessary by providing a USB interface and an Ethernet interface wired connection method.

10. The adjustable geological disaster crack measurement system according to claim 6, characterized in that: The control module includes an instruction receiving unit, a task scheduling unit, and a status monitoring unit. The instruction receiving unit is used to receive various operation instructions issued by an external control terminal, including instructions for starting measurement, stopping measurement, and adjusting measurement parameters. The task scheduling unit is used to obtain instructions from the external control terminal based on the instruction receiving unit. The status monitoring unit is used to monitor the working status of each module in the measuring probe in real time to see if a fault occurs. Once an abnormality is detected, the fault information is promptly fed back to the external control terminal, and corresponding processing measures are taken according to preset strategies.

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