A landslide emergency early warning device and its early warning method
By using a biomimetic landslide emergency early warning device that combines the resistance change of a copper column with the foam adhesive of an extension rod, accurate detection and rapid range assessment of landslide information are achieved, solving the problem of inaccurate measurement in existing technologies.
Patent Information
- Application Number
- CN202310163817.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-02-24
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2043-02-24
AI Technical Summary
Existing landslide early warning devices cannot accurately measure landslide data and are greatly affected by external factors, making it difficult to achieve accurate prediction.
The landslide emergency early warning device, which adopts a biomimetic design, uses detection boxes to form a spine structure. It detects the relative displacement of the soil layer by measuring the change in resistance between copper columns. Combined with the extension rod and foam adhesive to bind with the soil, it accurately collects landslide information.
It enables efficient and accurate early warning of landslides, quickly determining the extent and depth of landslides and reducing the impact of external interference.
Smart Images

Figure CN116778674B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of landslide emergency early warning, specifically to a landslide emergency early warning device and its early warning method. Background Technology
[0002] Landslides refer to the movement of a portion of rock and soil on a mountain slope downwards under the influence of gravity, due to shear displacement along a certain weak structural plane. It is one of the common geological hazards.
[0003] Existing landslide early warning devices typically employ multi-point positioning, using ropes (3616) or lasers to record displacement changes at each point to obtain detection data. However, this type of detection method is greatly affected by external factors and cannot accurately measure or collect landslide data, making it difficult to accurately predict landslide disasters. Therefore, we propose a landslide emergency early warning device. Summary of the Invention
[0004] The purpose of this invention is to provide a landslide emergency early warning device and its early warning method. This landslide emergency early warning device and its early warning method can accurately collect the relative displacement of soil layers at different depths and the relative displacement of soil layers at the same depth, so as to achieve efficient early warning of mountain landslides.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a landslide emergency early warning device, comprising a mounting base and a housing, wherein the bottom of the housing is rotatably engaged with a protrusion on the top of the mounting base, and a detection mechanism is provided inside the housing from top to bottom;
[0006] The testing institutions include:
[0007] The test box consists of several test boxes arranged sequentially from top to bottom inside the outer casing, with the bottommost test box fixedly connected to the upper surface of the mounting base.
[0008] Glass rods are used to fix adjacent detection boxes together.
[0009] Connecting sleeves; adjacent detection boxes are also connected by several connecting sleeves.
[0010] Copper pillars are fixedly installed on the detection box and inside the connecting sleeve, with the copper pillars on adjacent detection boxes in contact with each other.
[0011] A resistance acquisition module is provided inside the detection box and connected to its two lower copper pillars to form a loop to detect changes in resistance value.
[0012] Offset detection component, which is located inside the detection box for detecting soil layer offset.
[0013] Preferably, the offset detection assembly includes a slide groove, a slider, a central rod, a rotating wheel, a sleeve, a ratchet, a pawl, a slotted hole, an annular groove, an extension rod, a compression spring, a top block, an outlet hole, a transmission rod, an angle sensor, and a pull rope. Two symmetrical slide grooves are formed on the inner wall of the detection box. The inner sides of the two sliders are fixedly connected by the central rod to form a whole, and the two sliders are slidably connected within the two slide grooves. The rotating wheel is movably sleeved on the central rod. Two sleeves are sleeved on the central rod and fixedly connected to both sides of the rotating wheel. A ratchet is fixedly connected to the end of the sleeve away from the rotating wheel, and the ratchet contacts the corresponding slider. A pawl and ratchet form a ratchet mechanism on the slider. Two symmetrical slotted holes are formed near the edge of the rotating wheel. An annular groove is formed on the side wall of the rotating wheel. Two extension rods are pinned to the two slots, and the extension rods are located inside the annular groove. One end of a compression spring is fixedly connected to the bottom wall of the annular groove at the position corresponding to the slot. The other end of the compression spring is fixedly connected to a top block, which contacts one end of the extension rod. Two symmetrical rod outlet holes are formed on the side wall of the detection box. The ends of the two extension rods away from the rotating wheel are respectively inserted into the two rod outlet holes. One end of the transmission rod is inserted into the annular groove. An angle sensor is fixedly installed in the detection box by a bracket and is located on the upper side of the rotating wheel. The other end of the transmission rod is fixedly connected to the detection end of the angle sensor to detect the torsion angle of the rotating wheel. A pull rope is provided on the outside of the rotating wheel. One end of the pull rope passes through the detection box and is bonded to the inner wall of the outer shell.
[0014] Preferably, the extension rod has a through hole in the middle, a connecting rod is inserted into the through hole, a sealing film is glued to the end of the extension rod away from the rotating wheel, a cavity is opened in the connecting rod and filled with foam glue, a number of outlet holes are opened on the side of the connecting rod away from the rotating wheel and communicate with the cavity, and a sealing ring is glued to the middle of the connecting rod for sealing.
[0015] Preferably, the rotating wheel has a central cavity, and a turntable is provided inside the cavity. The turntable is movably sleeved on the central rod. The edge of the turntable has two symmetrical notches, and each notch contains an elastic rod. The elastic rod is compressed and wound inside the notch. A through hole is provided on the cavity corresponding to the position of the compression spring. A central hole is provided in the center of the top block for the elastic rod to pass through and be inserted into the through hole. One end of the elastic rod is fixedly connected to the notch, and the other end of the pull rope passes through the rotating wheel to the cavity and is fixedly connected to the outer wall of the turntable.
[0016] Preferably, a solar panel is fixedly installed on the top of the detection box at the top for power collection, a wireless communication module is installed inside the detection box at the top for information transmission, and a positioning module is installed for device positioning.
[0017] Preferably, the bottom of the mounting base is conical, and three positioning rods arranged in a ring are fixedly connected to the bottom of the mounting base.
[0018] Preferably, the lateral length of the rod outlet hole is five times the diameter of the extension rod, and a sealing film is adhered to the inner wall of the detection box at the position corresponding to the rod outlet hole to provide a seal for the inside of the detection box, and the extension rod is inserted into the hole in the middle of the sealing film.
[0019] A landslide emergency early warning device's early warning method, the early warning method comprising the following steps:
[0020] S1. Installation point treatment: Select points on the mountain slope, and drill vertical holes on the slope in a matrix arrangement, with the hole diameter matching the outer shell diameter.
[0021] S2. Equipment Installation: Place the equipment into the hole, position the positioning rod in the soil, and place the solar panel on the ground surface. Rotate the outer shell to disengage it from the mounting base. Pull the outer shell upward to expose the detection mechanism. As the outer shell is pulled upward, the corresponding pull ropes on the detection box are pulled in sequence. The pull ropes drive the rotating wheel to rotate, causing the extension rod to extend from the rod outlet and insert into the soil until it is perpendicular to the side wall of the detection box. At this time, the perforation on the extension rod is aligned with the through hole. At the same time, the pull rope pulls the turntable to rotate, causing the elastic rod to extend and insert into the perforation, pushing out the connecting rod, breaking through the sealing film and inserting it into the soil. The foam adhesive is released and expands rapidly, combining with the surrounding soil to form a block. At this time, the extension rod is perpendicular to the landslide direction of the mountain slope, completing the installation.
[0022] S3. Landslide Monitoring: The equipment is powered by batteries located in each detection box. Solar panels charge the batteries. When the soil layer moves, the resulting shear force causes the glass rod to break. The glass rod is a preset detection threshold that can filter out interference caused by human-induced vibrations. When the contact surface of the two copper columns corresponding to the soil depth changes, the offset can be calculated based on the change in resistance, and the depth of the landslide can be determined. The first alarm is triggered when the glass rod breaks and the resistance value changes. Subsequent alarms can be triggered multiple times according to the resistance change range until the two copper columns separate, confirming the formation of a landslide. The alarm signal is sent to the monitoring station via the wireless communication module. When the equipment is located at the edge of the landslide surface, it will twist during detection, that is, one side of the mountain landslides while the other side remains stationary. At this time, the extension rod on one side deflects downward, and the angle change signal can be obtained, which can be used to determine the landslide range.
[0023] By adopting the aforementioned technical solution, the beneficial effects of the present invention are:
[0024] 1. The landslide emergency early warning device and its early warning method: This device adopts a biomimetic design, with each detection box connected and combined in a structure similar to the spine. The detection box is the vertebral body, and each copper column is equivalent to a nerve in the spine. The displacement of the copper column is similar to a herniated disc, which compresses the nerve. The signal generated by the compression is the change in resistance between the copper columns. Each detection box corresponds to a soil layer at a different depth. When a landslide occurs, the shear force generated by the relative movement of soil layers at different depths will act on the corresponding detection box, realizing the accurate detection of landslide information and solving the problems mentioned in the background technology.
[0025] 2. The landslide emergency early warning device and its early warning method utilize the design of an extension rod. After extension, the extension rod can bond with the surrounding soil using foam adhesive, allowing the device to accurately collect data on the impact of soil movement. Compared with the rod-shaped devices of traditional equipment, this device can detect the relative movement between soil layers of different depths, which helps to quickly determine the landslide range and assess the disaster area. Attached Figure Description
[0026] Figure 1 This is a cross-sectional view of the present invention;
[0027] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;
[0028] Figure 3 For the present invention Figure 1 Enlarged view of point B in the middle;
[0029] Figure 4 For the present invention Figure 1 Enlarged view of point C in the middle;
[0030] Figure 5 This is a schematic diagram of the cross-section of the offset detection component of the present invention after it has been extended.
[0031] In the diagram: 1. Mounting base; 2. Housing; 3. Detection mechanism; 31. Detection box; 32. Glass rod; 33. Connecting sleeve; 34. Copper pillar; 35. Resistance acquisition module; 36. Offset detection component; 361. Slide groove; 362. Slider; 363. Center rod; 364. Rotating wheel; 365. Sleeve; 366. Ratchet; 367. Pawl; 368. Strip hole; 369. Annular groove; 3610. Extension rod; 3611. Compression spring; 3612. Top block; 3613. Rod outlet hole; 3614. Conducting rod; 3615. Angle sensor; 3616. Pull rope; 4. Through hole; 5. Connecting rod; 6. Sealing film; 7. Cavity; 8. Foam adhesive; 9. Outlet hole; 10. Sealing ring; 11. Circular cavity; 12. Turntable; 13. Notch; 14. Elastic rod; 15. Solar panel; 16. Wireless communication module; 17. Positioning module; 18. Positioning rod; 19. Through hole; 20. Sealing film. Implementation
[0032] Please see Figure 1-5 The present invention provides a technical solution: a landslide emergency early warning device, including a mounting base 1 and a shell 2. The bottom of the shell 2 is rotatably snapped onto the protrusion on the top of the mounting base 1. The snapping structure can be provided with an L-shaped slot on the shell 2. With the cooperation of the snapping block on the mounting base 1, the snapping relationship can be disengaged by rotation. This is a known technology and will not be described in detail. A detection mechanism 3 is provided inside the shell 2 from top to bottom.
[0033] Testing agency 3 includes:
[0034] Detection box 31, several detection boxes 31 are placed in the outer shell 2 from top to bottom, and the detection box 31 located at the bottom is fixedly connected to the upper surface of the mounting base 1;
[0035] The number of detection boxes 31 can be selected according to the required detection depth, as shown in the accompanying drawings of this application. Figure 1 The diagram shows the structure of three detection boxes 31. Typically, landslide depths are concentrated above 30 meters. A depth exceeding 30 meters is considered a large-scale landslide disaster. By adjusting the number of detection boxes 31, the detection depth of the equipment can be adjusted, allowing for staged detection of soil depth and rapid determination of soil activity status.
[0036] Glass rods 32 are used to fix adjacent detection boxes 31 together;
[0037] The adjacent detection boxes 31 are also connected by several connecting sleeves 33;
[0038] Copper pillars 34 are fixedly installed on the detection boxes 31 and within the connecting sleeves 33. The copper pillars 34 on adjacent detection boxes 31 are in contact with each other. The biomimetic design is adopted, and the detection boxes 31 are connected and combined in a manner similar to the structure of a spine. The detection boxes 31 are the vertebral bodies, and each copper pillar 34 is equivalent to the nerves in the spine. The displacement of the copper pillars 34 is similar to a herniated disc, which compresses the nerves. The signal generated by the compression is the change in resistance between the copper pillars 34. Each detection box 31 corresponds to a soil layer at a different depth. When a landslide occurs, the shear force generated by the relative movement of soil layers at different depths will act on the corresponding detection box 31, thus realizing the accurate detection of landslide information.
[0039] The resistance acquisition module 35 is located inside the detection box 31 and is connected to the two copper pillars 34 below it to form a loop to detect the change in resistance value. A storage battery is installed inside the detection box 31 to power each power module.
[0040] Offset detection component 36, which is located in detection box 31, is used for soil layer offset detection.
[0041] The offset detection assembly 36 includes a slide groove 361, a slider 362, a central rod 363, a rotating wheel 364, a sleeve 365, a ratchet 366, a pawl 367, a slot 368, an annular groove 369, an extension rod 3610, a compression spring 3611, a top block 3612, a rod outlet 3613, a transmission rod 3614, an angle sensor 3615, and a pull rope 3616. Two symmetrical slide grooves 361 are formed on the inner wall of the detection box 31. The inner sides of the two sliders 362 are fixedly connected to each other via the central rod 363, forming a whole. The two sliders 362 are slidably connected within the two slide grooves 361. The rotating wheel 364 is movably sleeved on the central rod 363. Both sleeves 365 are sleeved on the central rod 363 and connected to the rotating wheel respectively. The sleeve 365 is fixedly connected to both sides of the rotating wheel 364. A ratchet 366 is fixedly connected to the end of the sleeve 365 away from the rotating wheel 364, and the ratchet 366 contacts the corresponding slider 362. A pawl 367 is provided on the slider 362, forming a ratchet mechanism with the ratchet 366. The ratchet mechanism design prevents the extension rod 3610 from retracting due to soil movement after the equipment is installed, maintaining its extended state. It can be manually retracted after the equipment is retrieved. Two symmetrical strip holes 368 are opened near the edge of the rotating wheel 364. An annular groove 369 is opened on the side wall of the rotating wheel 364. Extension rods 3610 are pin-connected to both strip holes 368. The pin connection structure does not pass through the axis of the extension rod 3610 and should avoid obstructing the through hole 4. The pin structure can be found in the corresponding instruction manual. As shown in the figure, the extension rod 3610 is partially located within the annular groove 369. A compression spring 3611 is fixedly connected to one end of the bottom wall of the annular groove 369 at the position corresponding to the strip hole 368. A top block 3612 is fixedly connected to the other end of the compression spring 3611, and the top block 3612 contacts one end of the extension rod 3610. Two symmetrical rod outlet holes 3613 are opened on the side wall of the detection box 31. The ends of the two extension rods 3610 away from the rotating wheel 364 are respectively inserted into the two rod outlet holes 3613. One end of the transmission rod 3614 is inserted into the annular groove 369. The transmission rod 3614 is a quadrangular prism and fits against the two side walls of the annular groove 369. The rotation of the rotating wheel 364 can be transmitted to the transmission rod 3614. The angle sensor 3615 is fixed by a bracket. Installed inside the detection box 31 and above the rotating wheel 364, the other end of the transmission rod 3614 is fixedly connected to the detection end of the angle sensor 3615 to detect the torsional angle of the rotating wheel 364. A pull rope 3616 is provided on the outside of the rotating wheel 364. One end of the pull rope 3616 passes through the inner wall of the detection box 31 and is bonded to the outer shell 2. When the offset detection component 36 is extended, the pull rope inside the detection box 31 is taut and points towards the axis of the central rod 363, so that the rotating wheel 364 and the turntable 12 are no longer rotated under force. As the outer shell 2 moves upward, the connection point between the pull rope 3616 and the outer shell 2 will detach. To ensure that the outer shell 2 does not affect the extension of the extension rod 3610, the length of the pull rope 3616 is different for detection boxes 31 at different heights.This ensures that the pull rope 3616 applies force to the corresponding rotating wheel 364 only after the bottom of the outer casing 2 has disengaged from the rod outlet hole 3613 on the corresponding detection box 31.
[0042] The extension rod 3610 has a through hole 4 in the middle, and a connecting rod 5 is inserted into the through hole 4. A sealing film 6 is glued to the end of the extension rod 3610 away from the rotating wheel 364. A cavity 7 is opened in the connecting rod 5, and the cavity 7 is filled with foam glue 8. Several outlet holes 9 are opened on the side of the connecting rod 5 away from the rotating wheel 364 and communicate with the cavity 7. A sealing ring 10 is glued to the middle of the connecting rod 5 for sealing. With the design of the extension rod 3610, after it is extended, it can combine with the surrounding soil using the foam glue 8, so that the impact of soil movement on the equipment can be accurately collected. Compared with the rod-shaped equipment of traditional equipment, it can detect the relative movement between soil layers of different blocks at the same depth, which helps to quickly determine the landslide range and assess the disaster area.
[0043] A circular cavity 11 is provided in the middle of the rotating wheel 364. A turntable 12 is provided in the cavity 11 and is movably sleeved on the central rod 363. Two symmetrical notches 13 are provided on the edge of the turntable 12. An elastic rod 14 is provided in each of the two notches 13 and is compressed and wound in the notch 13. The elastic rod 14 can be made of nylon rod, which has good elasticity and corrosion resistance. A through hole 19 is provided on the cavity 11 corresponding to the position of the compression spring 3611. A central hole is provided in the middle of the top block 3612 for the elastic rod 14 to pass through and be inserted into the through hole 4. One end of the elastic rod 14 is fixedly connected in the notch 13. The other end of the pull rope 3616 passes through the rotating wheel 364 to the cavity 11 and is fixedly connected to the outer wall of the turntable 12.
[0044] A solar panel 15 is fixedly installed on the top of the detection box 31 at the top for collecting electrical energy. A wireless communication module 16 is installed inside the detection box 31 at the top for transmitting information, and a positioning module 17 is installed for positioning the device. The collection and feedback of signals are known technologies in this field and will not be described in detail.
[0045] The bottom of the mounting base 1 is conical, and three positioning rods 18 arranged in a ring are fixedly connected to the bottom of the mounting base 1.
[0046] The lateral length of the rod outlet hole 3613 is five times the diameter of the extension rod 3610. A sealing film 20 is adhered to the inner wall of the detection box 31 at the position corresponding to the rod outlet hole 3613 to provide a seal for the inside of the detection box 31. The extension rod 3610 is inserted into the hole in the middle of the sealing film 20.
[0047] A landslide emergency early warning device's early warning method includes the following steps:
[0048] S1. Installation point treatment: Select points on the mountain slope and drill vertical holes on the slope in a matrix arrangement. The diameter of the holes matches the diameter of the outer shell 2.
[0049] S2. Equipment Installation: Place the equipment into the hole, position the positioning rod 18 in the soil, and place the solar panel 15 on the ground surface. Rotate the outer shell 2 to disengage it from the mounting base 1. Pull the outer shell 2 upward to expose the detection mechanism 3. As the outer shell 2 is pulled upward, the pull rope 3616 on the corresponding detection box 31 is pulled in sequence. The pull rope drives the rotating wheel 364 to rotate, causing the extension rod 3610 to extend out of the rod outlet hole 3613 and insert into the soil until it is perpendicular to the side wall of the detection box 31. At this time, the through hole 4 on the extension rod 3610 is opposite to the through hole 19. At the same time, the pull rope pulls the turntable 12 to rotate, causing the elastic rod 14 to extend and insert into the through hole 4 to push out the connecting rod 5, which breaks through the sealing film 6 and inserts into the soil. The foam adhesive 8 is released and expands rapidly, combining with the surrounding soil to form a block. At this time, the extension rod 3610 is perpendicular to the landslide direction of the mountain slope, and the installation is completed.
[0050] S3. Landslide Monitoring: The equipment is powered by batteries installed in each detection box 31. Solar panels 15 charge the batteries. When the soil layer moves, the resulting shear force will cause the glass rod 32 to break. The glass rod 32 is a preset detection threshold. The strength and number of glass rods 32 are selected according to the actual use environment. It can filter the interference caused by human-induced vibration. When the contact surface of the two copper columns 34 corresponding to the soil depth changes, the offset can be calculated based on the change in resistance, and the depth of the landslide can be determined. When the glass rod 32 breaks and the resistance value changes, an alarm is triggered for the first time. Subsequent alarms can be triggered multiple times according to the resistance value change range until the two copper columns 34 separate, which confirms the formation of a landslide. The alarm signal is sent to the monitoring station by the wireless communication module 16. When the equipment is located at the edge of the landslide surface, it will twist during detection, that is, one side of the mountain landslides while the other side remains stationary. At this time, the extension rod 3610 on one side will shift downward to obtain an angle change signal, which can be used to determine the landslide range.
[0051] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A landslide emergency early warning device, comprising a mounting base and a housing, wherein the bottom of the housing is rotatably engaged with a protrusion on the top of the mounting base, characterized in that: The outer casing contains a detection mechanism arranged from top to bottom; The testing institutions include: The test box consists of several test boxes arranged sequentially from top to bottom inside the outer casing, with the bottommost test box fixedly connected to the upper surface of the mounting base. Glass rods are used to fix adjacent detection boxes together. Connecting sleeves; adjacent detection boxes are also connected by several connecting sleeves. Copper pillars are fixedly installed on the detection box and inside the connecting sleeve, with the copper pillars on adjacent detection boxes in contact with each other. A resistance acquisition module is provided inside the detection box and connected to its two lower copper pillars to form a loop to detect changes in resistance value. Offset detection component, which is disposed in the detection box for detecting soil layer offset; The offset detection assembly includes a slide groove, a slider, a central rod, a rotating wheel, a sleeve, a ratchet, a pawl, a slotted hole, an annular groove, an extension rod, a compression spring, a top block, an outlet hole, a transmission rod, an angle sensor, and a pull rope. Two symmetrical slide grooves are formed on the inner wall of the detection box. The inner sides of the two sliders are fixedly connected by the central rod to form a whole, and the two sliders are slidably connected within the two slide grooves. The rotating wheel is movably sleeved on the central rod. Two sleeves are sleeved on the central rod and fixedly connected to both sides of the rotating wheel. A ratchet is fixedly connected to the end of the sleeve away from the rotating wheel, and the ratchet contacts the corresponding slider. A pawl and ratchet form a ratchet mechanism on the slider. Two symmetrical slotted holes and annular grooves are formed near the edge of the rotating wheel. On the side wall of the rotating wheel, two strip-shaped holes are pinned to extension rods, with the extension rods partially inside an annular groove. One end of a compression spring is fixedly connected to the bottom wall of the annular groove at the position corresponding to the strip-shaped hole. The other end of the compression spring is fixedly connected to a top block, which contacts one end of the extension rod. Two symmetrical rod outlet holes are opened on the side wall of the detection box. The ends of the two extension rods away from the rotating wheel are respectively inserted into the two rod outlet holes. One end of the transmission rod is inserted into the annular groove. An angle sensor is fixedly installed inside the detection box by a bracket and is located above the rotating wheel. The other end of the transmission rod is fixedly connected to the detection end of the angle sensor to detect the torsional angle of the rotating wheel. A pull rope is provided on the outside of the rotating wheel, with one end of the pull rope passing through the detection box and bonded to the inner wall of the outer shell.
2. The landslide emergency early warning device according to claim 1, characterized in that: The extension rod has a through hole in the middle, and a connecting rod is inserted into the through hole. A sealing film is glued to the end of the extension rod away from the rotating wheel. A cavity is opened in the connecting rod and filled with foam glue. Several outlet holes are opened on the side of the connecting rod away from the rotating wheel and communicate with the cavity. A sealing ring is glued to the middle of the connecting rod for sealing.
3. The landslide emergency early warning device according to claim 2, characterized in that: The rotating wheel has a cavity in the middle, and a turntable is set inside the cavity. The turntable is movably sleeved on the central rod. The edge of the turntable has two symmetrical notches, and each notch has an elastic rod. The elastic rod is compressed and wound inside the notch. A through hole is opened on the cavity corresponding to the position of the compression spring. A central hole is opened in the middle of the top block for the elastic rod to pass through and be inserted into the through hole. One end of the elastic rod is fixedly connected to the notch, and the other end of the pull rope passes through the rotating wheel to the cavity and is fixedly connected to the outer wall of the turntable.
4. A landslide emergency early warning device according to claim 3, characterized in that: A solar panel is fixedly installed on the top of the detection box at the top for power collection. A wireless communication module is installed inside the detection box at the top for information transmission, and a positioning module is installed for device positioning.
5. A landslide emergency early warning device according to claim 4, characterized in that: The bottom of the mounting base is conical, and three positioning rods arranged in a ring are fixedly connected to the bottom of the mounting base.
6. A landslide emergency early warning device according to claim 5, characterized in that: The lateral length of the rod outlet hole is five times the diameter of the extension rod. A sealing film is adhered to the inner wall of the detection box at the position corresponding to the rod outlet hole to provide a seal for the inside of the detection box. The extension rod is inserted into the hole in the middle of the sealing film.
7. The early warning method for a landslide emergency early warning device according to any one of claims 1-6, characterized in that: The early warning method includes the following steps: S1. Installation point treatment: Select points on the mountain slope, and drill vertical holes on the slope in a matrix arrangement, with the hole diameter matching the outer shell diameter. S2. Equipment Installation: Place the equipment into the hole, position the positioning rod in the soil, and place the solar panel on the ground surface. Rotate the outer shell to disengage it from the mounting base. Pull the outer shell upward to expose the detection mechanism. As the outer shell is pulled upward, the corresponding pull ropes on the detection box are pulled in sequence. The pull ropes drive the rotating wheel to rotate, causing the extension rod to extend from the rod outlet and insert into the soil until it is perpendicular to the side wall of the detection box. At this time, the perforation on the extension rod is aligned with the through hole. At the same time, the pull rope pulls the turntable to rotate, causing the elastic rod to extend and insert into the perforation, pushing out the connecting rod, breaking through the sealing film and inserting it into the soil. The foam adhesive is released and expands rapidly, combining with the surrounding soil to form a block. At this time, the extension rod is perpendicular to the landslide direction of the mountain slope, completing the installation. S3. Landslide Monitoring: The equipment is powered by batteries located in each detection box. Solar panels charge the batteries. When the soil layer moves, the resulting shear force causes the glass rod to break. The glass rod is a preset detection threshold that can filter out interference caused by human-induced vibrations. When the contact surface of the two copper columns corresponding to the soil depth changes, the offset can be calculated based on the change in resistance, and the depth of the landslide can be determined. The first alarm is triggered when the glass rod breaks and the resistance value changes. Subsequent alarms can be triggered multiple times according to the resistance change range until the two copper columns separate, confirming the formation of a landslide. The alarm signal is sent to the monitoring station via the wireless communication module. When the equipment is located at the edge of the landslide surface, it will twist during detection, that is, one side of the mountain landslides while the other side remains stationary. At this time, the extension rod on one side deflects downward, and the angle change signal can be obtained, which can be used to determine the landslide range.
Citation Information
Patent Citations
Buried mountain landslide early warning device
CN110599743A