Multi-direction and multi-point inclination angle crack monitoring and alarming device

Abstract

The utility model discloses a multidirectional multi-point inclination angle crack monitoring alarm device, which comprises a reference area and a local control device, the reference area is provided with sensors, the sensors comprise an inclination angle sensor, a crack sensor, a hygrometer, a rainfall monitoring device, a soil pressure meter and a micro-core pile, the local control device is arranged in the reference area, and the micro-core pile is arranged in the local control device. The local control device is connected with the plurality of sensors and obtains first local data, the local control device is provided with a first alarm module, and the wireless transmission module is used for copying the first local data into second external transmission data and sending the second external transmission data to the central control device; when the first threshold value of any sensor exceeds a preset value or the numerical value of the preset number of sensors exceeds a second threshold value, the local control device starts a first alarm module, and the central control device makes a topographic change trend through a calculation model after receiving second external data; and the wireless alarm module is sent to a preset center or specific personnel or personnel in a preset range.

Description

Technical Field

[0001] This utility model relates to the field of geological monitoring systems, and in particular to a multi-directional, multi-point tilt angle crack monitoring and alarm device. Background Technology

[0002] In some hilly areas, geological monitoring involves a wide range of regions, monitoring points, coverage areas, and monitoring types. Therefore, the actual monitoring process requires high-throughput data transmission capabilities. Consequently, the cost of monitoring equipment for this type of high-throughput monitoring data and monitoring points is relatively high, raising the issue of widespread monitoring adoption.

[0003] For example, Chinese patent CN202021419197.X features multi-circuit, dual-backup communication links with automatic switching and seamless integration; two communication links are configured simultaneously and are mutually compatible, automatically switching to another link in case of a problem, ensuring seamless integration. The data acquisition terminal selects the optimal link based on the current communication link status.

[0004] Its main function is to prevent disasters, but actual geological disasters are instantaneous. Therefore, even if the monitoring center detects a disaster, it cannot provide timely feedback to the affected area, which can easily lead to loss of life or property.

[0005] At the same time, the high cost of the existing equipment has hindered its widespread adoption in production. Summary of the Invention

[0006] The main purpose of this invention is to propose a multi-directional, multi-point tilt crack monitoring and alarm device. The aim is to design a multi-directional, multi-point tilt crack monitoring system that can achieve real-time alarm at the location of the crack and simultaneously feed the data back to the control center, thereby playing a preventive role and improving monitoring efficiency.

[0007] To achieve the above objectives, this utility model proposes a multi-directional, multi-point tilt angle crack monitoring and alarm device, comprising:

[0008] The reference area is equipped with sensors, including tilt sensors, crack sensors, hygrometers, rainfall monitoring devices, soil pressure gauges, and micro-core piles (wherein this structure is prior art, as can be seen in the prior art document).

[0009] The tilt sensor is used to monitor the relative horizontality of the ground surface in the reference area;

[0010] The crack sensor is used to monitor a predetermined indentation value in the reference area;

[0011] The hygrometer is used to monitor the air humidity in the reference area;

[0012] The rainfall monitoring device is used to monitor the rainfall in the reference area;

[0013] The earth pressure gauge is used to monitor the soil pressure in the reference area;

[0014] The micro-core pile is used to monitor surface deformation in the reference area;

[0015] A local control device is located in the reference area. The local control device is connected to multiple sensors, acquires monitoring data from predetermined sensors, and stores the data as first local data.

[0016] The local control device is equipped with a first alarm module and a wireless transmission module. The wireless transmission module is used to copy the first local data into second external data and send it to the central control device.

[0017] When the first threshold of any sensor exceeds a predetermined value or the values ​​of a predetermined number of sensors exceed a second threshold, the local control device activates the first alarm module.

[0018] After receiving the second transmitted data, the central control device calculates the terrain change trend through a calculation model and sends a wireless alarm module to a predetermined center, specific personnel, or personnel within a predetermined range.

[0019] In actual operation, by setting the first threshold and the second threshold, the data operation of the local control device can be simplified and the probability of error can be reduced. At the same time, a prediction can be made through simple logical judgment, thereby improving the real-time performance of the local warning. The second threshold can be a merged threshold or a trigger for a sub-threshold.

[0020] This improves the timeliness of triggering and effectively avoids the problem of accidental triggering;

[0021] The actual distribution of sensors can be adjusted according to the actual terrain, thereby reducing blind spots and improving monitoring accuracy.

[0022] By setting up local control devices and central control devices, the first local data and the second externally transmitted data can be processed more promptly, while improving the predictability of the data.

[0023] At the same time, by working together with dual alarm modules (the first alarm module and the wireless alarm module), it is possible to effectively ensure that residents in the benchmark area can be evacuated in a timely manner (avoiding the message delay caused by existing wireless notifications), and at the same time, it allows monitoring personnel to make timely predictions or take countermeasures, thereby improving the response rate of geological monitoring. Attached Figure Description

[0024] Figure 1This is a framework diagram of the present utility model;

[0025] Figure 2 A three-dimensional schematic diagram of a tilt sensor and a crack sensor integrated in the same housing;

[0026] Figure 3 Schematic diagram of tilt sensor and crack sensor after the housing is hidden;

[0027] Figure 4 A schematic diagram showing a pile installed within the ground surface;

[0028] Figure 5 This is the preset early warning framework of this utility model.

[0029] In the picture,

[0030] 1 represents the outer shell, and 10 represents the internal storage space.

[0031] 2 is the monitoring hole, 21 is the first linear bearing, and 22 is the second linear bearing.

[0032] 3 is the servo motor, 30 is the rotating shaft, 31 is the housing, 31a is the pull wire shaft, 31b is the positioning hole, 31c is the coil spring, and 33 is the rope.

[0033] 4 is the support base, 41 is the lithium battery, and 42 is the local control device.

[0034] 51 is a tilt sensor, 52 is a crack sensor, 53 is a hygrometer, 54 is a rainfall monitoring device, 55 is an earth pressure gauge, and 56 is a micro-core pile.

[0035] 61 is a local control device, and 62 is a central control device.

[0036] 71 is the first alarm module, 72 is the wireless alarm module, and 73 is the wireless transmission module. Detailed Implementation

[0037] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0038] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0039] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0040] like Figures 1 to 4 As shown, a multi-directional, multi-point tilt angle crack monitoring and alarm device includes:

[0041] The reference area is equipped with sensors, including an inclination sensor 51, a crack sensor 52, a hygrometer 53, a rainfall monitoring device 54, an earth pressure gauge 55, and a micro-core pile 56 (wherein this structure is prior art, as can be seen in the prior art document).

[0042] The tilt sensor 51 (which is a prior art technology, such as a gyroscope tilt sensor) is used to monitor the relative levelness of the ground surface in the reference area;

[0043] The crack sensor 52 is used to monitor a predetermined indentation value in the reference area;

[0044] The hygrometer 53 is used to monitor the air humidity in the reference area;

[0045] The rainfall monitoring device 54 is used to monitor the rainfall in the reference area;

[0046] The earth pressure gauge 55 is used to monitor the soil pressure in the reference area;

[0047] The micro-core pile 56 is used to monitor surface deformation in the reference area;

[0048] A local control device, wherein the local control device 42 is located in the reference area, the local control device 42 is connected to multiple sensors, and acquires monitoring data from predetermined sensors and stores the data as first local data.

[0049] The local control device 42 is provided with a first alarm module and a wireless transmission module. The wireless transmission module is used to copy the first local data into the second external data and send it to the central control device.

[0050] When the first threshold of any sensor exceeds a predetermined value or the values ​​of a predetermined number of sensors exceed a second threshold, the local control device 42 activates the first alarm module.

[0051] After receiving the second transmitted data, the central control device calculates the terrain change trend through a calculation model and sends a wireless alarm module to a predetermined center, specific personnel, or personnel within a predetermined range.

[0052] In actual operation, by setting the first threshold and the second threshold, the data operation of the local control device 42 can be made simpler and the probability of error can be reduced. At the same time, a prediction can be made through simple logical judgment, thereby improving the real-time performance of the local warning. The second threshold can be a merged threshold or a trigger for a sub-threshold.

[0053] This improves the timeliness of triggering and effectively avoids the problem of accidental triggering;

[0054] The actual distribution of sensors can be adjusted according to the actual terrain, thereby reducing blind spots and improving monitoring accuracy.

[0055] By setting up the local control device 42 and the central control device, the first local data and the second external data can be processed more timely, and the predictability of the data can be improved.

[0056] At the same time, by working together with dual alarm modules (the first alarm module and the wireless alarm module), it is possible to effectively ensure that residents in the benchmark area can be evacuated in a timely manner (avoiding the message delay caused by existing wireless notifications), and at the same time, it allows monitoring personnel to make timely predictions or take countermeasures, thereby improving the response rate of geological monitoring.

[0057] (1) Slope surface deformation monitoring: The stability of the slope is determined by acquiring the physical quantities of tilt and vibration. During the sliding or collapse of the slope, the surface will deform. The slope surface deformation is monitored by inclinometer to determine the safety status of the slope in real time. Before the slope becomes completely unstable, the ground will vibrate during the overall sliding or partial collapse of the slope. By monitoring the ground vibration, it can be determined whether the slope has begun to become unstable, so as to achieve the purpose of real-time early warning before the slope becomes completely unstable.

[0058] (2) Monitoring of deep horizontal displacement of soil: Fixed inclinometers are set up at different soil and rock layers inside the slope to observe the deep displacement of the slope rock mass. The slope of this project has a large height and complex geological conditions. Inclinometer holes of different depths need to be set up on the platforms of each level of the slope to monitor the deep sliding and shallow sliding of the slope respectively.

[0059] (3) Groundwater level monitoring: Use a piezometer to monitor pore water pressure or seepage pressure or water level. The monitoring points should be set up along the direction of groundwater seepage. Piezometers should be installed in boreholes to monitor water pressure or water level.

[0060] (4) Earth pressure monitoring: Earth pressure gauges are installed near the surface deformation monitoring instruments to monitor changes in underground soil stress and verify surface deformation monitoring data. Specifically, the earth pressure gauges are used to monitor the load-bearing and anti-slip force of the slip zone to understand the pressure transmitted from the landslide body to the retaining structure. One longitudinal section is set up on site, with monitoring points set at an elevation of 360 meters, for a total of 3 monitoring points. Earth pressure gauges can be installed near the slope surface deformation monitoring instruments to monitor slope pressure and simultaneously verify slope surface deformation monitoring data.

[0061] (5) Rainfall monitoring: Atmospheric rainfall is the main environmental factor affecting slope stability. Rainfall monitoring points should be set up at appropriate locations based on topographical conditions and the surrounding environment. Rain gauges can be used for rainfall monitoring.

[0062] The stability assessment of landslide monitoring is mainly based on a comprehensive judgment of the following points:

[0063] (1) Cumulative deep horizontal displacement of soil: less than or equal to 50 mm;

[0064] (2) Cumulative groundwater level change: less than or equal to 800 mm;

[0065] (3) Inclination index: Inclination angle less than or equal to 2°;

[0066] (4) Vibration index: Vibration acceleration exceeds 0.1g, and tilt change exceeds 0.5° / h;

[0067] (5) Whether there are abrupt changes in earth pressure and whether the earth pressure loss is within the design allowable range;

[0068] If any of the above phenomena occur during actual monitoring, attention should be paid, and short-term continuous observation data should be obtained through intensified monitoring for analysis to further determine the stability of the slope, so as to detect potential safety hazards as early as possible and take corresponding remedial measures.

[0069] Specifically, the second threshold is a combined threshold, which is composed of sub-thresholds from multiple sensors, and the sum of the sub-thresholds or the sub-thresholds are provided with a second threshold.

[0070] This allows for clearer data analysis, simplifies the judgment logic, and improves the stability of monitoring.

[0071] For example, assuming the sensor's maximum sensitivity value is 10,

[0072] The first threshold is 6. When one of the sensors triggers the first threshold, the first alarm module is triggered.

[0073] The second threshold is 5. When both sensors trigger the second threshold, the first alarm module is triggered.

[0074] Of course, a second threshold can also be set, which is the sum of the values ​​from multiple sensors. For example, the sum of the values ​​from three sensors (3+5+6) is 11, which triggers the first alarm module, thereby improving the diversity of monitoring.

[0075] For example, with the rainfall monitoring device 54 and the earth pressure gauge, when the rainfall monitored by the rainfall monitoring device 54 is greater than 15mm, the corresponding value of the earth pressure gauge will also increase. Therefore, by setting a second threshold for comprehensive calculation, it is possible to monitor whether there are secondary hazards, such as landslides or ground subsidence.

[0076] Specifically, the tilt sensor 51 and the crack sensor 52 are integrated into the same housing 1.

[0077] The housing 1 is used to fix it to a hard foundation. The housing 1 is a cavity with a central accommodating space 10. The housing 1 has a long strip structure. The outer peripheral wall of the lower part of the housing 1 is provided with a plurality of monitoring holes 2 distributed along its peripheral wall. The monitoring holes 2 are provided with a first linear bearing 21.

[0078] The tilt sensor 51 includes a servo motor 3, the number of which corresponds to the number of monitoring holes 2. The servo motor 3 is equipped with an encoder, which is used to record the rotation data of the shaft 30 of the servo motor 3.

[0079] The housing 31 is connected to the servo motor 3. A pivotally mounted pull shaft 31a is provided in the middle of the housing 31. A coil spring is provided between the pull shaft 31a and the housing 31. The pull shaft has a positioning hole 31b penetrating the side wall of the housing 31. The housing 31 is detachably mounted to the side wall of the servo motor 3, and the rotating shaft 30 extends into the positioning hole 31b.

[0080] The outer peripheral wall of the pull shaft is provided with a rope body. The coil spring is used to wind the rope body towards the pull shaft. The servo motor 3 can drive the rope body to wrap around the outer peripheral wall of the pull shaft or release it. One end of the rope body is fixedly set on the outer wall of the pull shaft, and the other end is fixedly set on the monitoring area.

[0081] The pull-wire shaft extends out of the monitoring hole 2 after passing through the first linear bearing 21;

[0082] The support base 4 is located within the accommodating space 10 and above the servo motor 3. The support base 4 is equipped with a lithium battery 41 and the local control device 42. The tilt sensor 51 is located on the support base 4. The local control device 42 is connected to an alarm device located on the upper wall of the housing 1.

[0083] This structure allows a single shell 1 to monitor cracks at multiple locations. The monitoring method is displacement-based, thereby reducing costs.

[0084] Unlike existing pull-cord switches, this one uses a servo motor 3 to precisely control the displacement of the pull cord. When the cracks or sinkholes in the monitoring area deform, the other end of the cord will be deformed and displaced. This causes the encoder pull shaft to rotate, which in turn drives the rotating shaft 30 to rotate. A predetermined threshold is set by the control device, which then controls the alarm device to turn on or off. For example, if the rotating shaft 30 rotates one-quarter of a turn, the alarm device will be triggered.

[0085] Specifically, the monitoring area is equipped with piles, which are connected to the rope. The portion of the rope extending out of the housing 1 is pre-buried underground through a pipe, and the pipe is equipped with a second linear bearing 22 or an internal roller at the bend of the rope.

[0086] Specifically, the piles are set above or inside the ground surface, and the corresponding ropes can also be set above or below the ground surface. Thus, the structure can simultaneously test terrain changes at multiple different locations and reduce abnormal triggering.

[0087] Specifically, the first alarm module includes a warning light and / or a speaker. Depending on the actual design location, a speaker or warning light is set to provide real-time early warning and reduce message lag.

[0088] Specifically, the wireless transmission module is a Wi-Fi, 4G, or 5G signal.

[0089] Specifically, the wireless alarm module provides push notifications via APP and SMS. For example, the central control device can pre-implement risk control and mitigation measures in each region, such as sending information on safe havens, thereby reducing the impact of geological disasters.

[0090] Specifically, the central control device is equipped with a terrain simulation panel, which can generate a simulation panel based on predetermined sensor data, thereby enabling timely acquisition of terrain change data.

[0091] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A multi-directional multi-point dip angle crack monitoring alarm device, characterized in that, The utility model relates to a kind of terrain monitoring system, including: Benchmark area, the benchmark area is equipped with sensor, the sensor includes inclination sensor, crack sensor, hygrometer, rainfall monitoring device, earth pressure cell and micro core pile; The inclination sensor is used to monitor the relative levelness of the ground surface of benchmark area; The crack sensor is used to monitor the predetermined recess value of benchmark area; The hygrometer is used to monitor the air humidity of benchmark area; The rainfall monitoring device is used to monitor the rainfall of benchmark area; The earth pressure cell is used to monitor the soil layer pressure of benchmark area; The micro core pile is used to monitor the surface deformation monitoring of benchmark area; Local control device, the local control device is located in benchmark area, the local control device is connected with multiple sensors, and the monitoring data of predetermined sensor are obtained and data are stored as first local data, The local control device is equipped with first alarm module, and the local control device is also equipped with wireless transmission module, and the wireless transmission module is used to copy first local data as second external data and send to central control device; When the first threshold of any sensor exceeds predetermined value or the value of predetermined number of sensors exceeds second threshold, the local control device starts first alarm module, After receiving second external data, the central control device makes terrain change trend through calculation model, and issues wireless alarm module to predetermined center or specific personnel or personnel in predetermined range.

2. The multi-directional multi-point dip angle crack monitoring alarm device according to claim 1, characterized in that: The second threshold is a combined threshold, and the second threshold is composed of multiple sensor sub-thresholds, and the sum of the sub-thresholds or the sub-thresholds is provided with the second threshold.

3. The multi-directional multi-point dip angle crack monitoring alarm device according to claim 1, characterized in that: The inclination sensor and the crack sensor are integrated in the same housing, The housing is used to be fixed to hard foundation, the housing is a cavity with accommodating space in the middle, the housing is in long strip structure, the outer peripheral wall of the lower part of the housing is provided with a plurality of monitoring holes distributed along the peripheral wall, and the monitoring holes are provided with first linear bearings. The inclination sensor includes a servo motor, the number of monitoring holes corresponds to the servo motor, the servo motor is provided with an encoder, and the encoder is used to record the rotation data of the rotating shaft of the servo motor. A box body is connected with the servo motor, a pivotally arranged pull shaft is arranged in the middle of the box body, a coil spring is arranged between the pull shaft and the box body, the pull shaft is provided with a positioning hole penetrating the side wall of the box body, the box body is detachably mounted on the side wall of the servo motor, and the rotating shaft extends into the positioning hole, The outer peripheral wall of the pull shaft is provided with a rope body, the coil spring is used to wind the rope body towards the pull shaft, the servo motor can drive the rope body to wind around the outer peripheral wall of the pull shaft or release it, one end of the rope body is fixed to the outer wall of the pull shaft, and the other end is fixed to the monitoring area. The pull shaft extends out of the monitoring hole after passing through the first linear bearing. A support seat is arranged in the accommodating space and above the servo motor, the support seat is provided with a lithium battery and a local control device, the inclination sensor is arranged on the support seat, the local control device is connected with an alarm device, and the alarm device is arranged on the upper wall of the housing.

4. The multi-directional multi-point dip angle crack monitoring alarm device according to claim 3, characterized in that: The monitoring area is provided with a pile body connected with a rope body; the part of the rope body extending out of the shell is embedded underground through a pipe body, and the pipe body is provided with a second linear bearing or an embedded roller at a bending position of the rope body.

5. The multi-directional multi-point dip angle crack monitoring alarm device according to claim 4, characterized in that: The pile body is arranged on or in the ground surface.

6. The multi-directional multi-point dip angle crack monitoring alarm device of claim 1, wherein: The first alarm module comprises a warning light and / or a loudspeaker.

7. The multi-directional multi-point dip angle crack monitoring alarm device of claim 1, wherein: The wireless transmission module is a wifi, 4G signal or 5G signal.

8. The multi-directional multi-point dip angle crack monitoring alarm device of claim 1, wherein: The wireless alarm module is an APP push or a mobile phone message push.

9. The multi-directional multi-point dip angle crack monitoring alarm device of claim 1, wherein: The central control device is provided with a terrain simulation board.

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