KR102663446B1 - IoT-based slope disaster detection and warning system - Google Patents

Abstract

Integrated slope disaster detection and warning that accurately determines the possibility of a slope disaster based on surface slope, surface displacement, and surface soil water content, which are effective factors in identifying signs of slope collapse, and quickly takes appropriate preparation and action accordingly. The system starts.
The slope disaster detection and warning system according to the present invention is installed directly on the slope subject to monitoring and measures surface slope and its changes, surface displacement, surface soil water content and its changes, and applies a low-power operation algorithm to enable battery operation. Integrated sensing IoT device device; An IoT gateway device that relays a signal transmitted from the integrated sensing IoT device device to a control server; Receives and stores detection sensor data from the IoT gateway device, monitors the condition of the slope based on the information contained in the received data, determines whether or not a slope disaster has occurred and the possibility of occurrence, stores the information, and manages the administrator terminal and user terminal. a control server that sends information and commands to each; an administrator terminal that receives and displays information and commands from the control server and allows the administrator to input information for management; And it may be configured to include a user terminal used by the user to receive information including a slope disaster occurrence warning.

Description

IoT-based slope disaster detection and warning system

The present invention relates to an IoT (Internet of Things)-based slope disaster detection and warning system. Specifically, it detects in advance the possibility of slope disasters such as debris flows and landslides that may occur on the slope and provides warnings (sirens, warning lights, etc.) at the site. ) It is about a slope disaster detection and warning system that enables efficient preparation for risks caused by slope disasters by taking measures such as implementing measures and sending warning text messages to managers and relevant residents (users).

In Korea, 63% of the country's land area is comprised of mountainous areas, so during heavy rains during the summer monsoon season, damage from large and small debris flows and landslides, slope collapse, or collapse of old stone structures or retaining walls is repeated. For convenience, the term "slope disaster" is used in this specification to encompass both the occurrence of debris flows and landslides and the collapse of slopes (including steep slopes).

Slope disasters mainly occur during the summer rainy season and heavy rain caused by typhoons, causing casualties and property damage. Slope disasters are caused by the complex effects of various soil, geology, and topography in addition to rainfall, and it is very difficult to predict the location, scale, and form of such slope disasters. Therefore, in order to prevent damage occurring in residential areas due to slope disasters, one of the most realistic ways is to recognize the signs of slope disasters in advance. Most steep slope collapse accidents caused by heavy rain during the rainy season are caused by soil runoff from slopes adjacent to houses or small buildings. In addition, as they are often adjacent to houses, slope collapse inevitably causes damage to life and property. On slopes, 'surface collapse' usually occurs when shallow soil on the surface of the slope slides down. Many researchers have conducted research to identify collapse precursors using changes in ground properties and movement of the ground surface due to rainfall infiltration. In particular, in the case of slopes, surface slope, surface displacement, and surface soil water content are known to be effective in identifying signs of collapse.

Therefore, in order to prevent damage from slope disasters, there is an urgent need to develop more efficient methods to predict and prepare for slope disasters such as slope collapse and debris flows in remote areas based on surface slope, surface displacement, and surface soil water content. am.

Republic of Korea Patent Publication No. 10-1982632 (announced on May 27, 2019).

The present invention was created in response to the above realistic needs. The present invention accurately determines the possibility of a slope disaster based on surface slope, surface displacement, and surface soil water content, which are effective factors in identifying signs of slope collapse, and accordingly The purpose is to provide an integrated slope disaster detection and warning system that can quickly take appropriate preparedness and action.

In particular, the present invention measures and transmits in real time the surface slope of the slope and its changes, surface displacement, surface soil water content and its changes using an integrated sensing IoT device that applies a low-power operation algorithm so that it can be operated on a battery, and transmits it to the outside. The purpose is to provide a system that can detect and warn of slope disasters very effectively without the need for additional devices.

In order to achieve the above object, in the present invention, a low-power operation algorithm is installed directly on the slope subject to monitoring to measure surface slope and its changes, surface displacement, surface soil water content and its changes, and can be operated with a battery. Applied integrated sensing IoT device device; An IoT gateway device that relays a signal transmitted from the integrated sensing IoT device device to a control server; Receives and stores detection sensor data from the IoT gateway device, monitors the condition of the slope based on the information contained in the received data, determines whether or not a slope disaster has occurred and the possibility of occurrence, stores the information, and manages the administrator terminal and user terminal. a control server that sends information and commands to each; an administrator terminal that receives and displays information and commands from the control server and allows the administrator to input information for management; and a user terminal used by the user to receive information including a slope disaster occurrence warning. A slope disaster detection and warning system is provided.

In the present invention, the integrated sensing IoT device device includes a ground slope sensor module that measures the slope of the ground and its changes by having a ground slope sensor capable of simultaneously measuring the slope of the ground in each axis direction of a rectangular coordinate system; A ground displacement sensor module equipped with a ground displacement sensor to measure displacement of the ground in the vertical and horizontal directions, respectively; A surface soil water content sensor module that is equipped with a water content measurement sensor to measure the water content of the soil forming the surface and measures the surface soil water content and its changes; And it may be configured to include an on-site alarm device installed at the site of the slope and generating an alarm in the form of sound or light, wherein the surface slope sensor module, the surface displacement sensor module, and the surface soil water content sensor module include, It is equipped with an individual communicator that is mounted on a horizontal fixing fixture that has a body that is embedded and fixed horizontally and transmits signals to the IoT gateway device, so the measured information can be individually transmitted through the individual communicator.

In addition, in the present invention, the IoT gateway device includes an IoT gateway, a solar power generation module that generates solar power using a solar panel to independently supply power to be consumed by the IoT gateway device, and a storage device for storing the generated power. It may be configured to include a charging module made of a battery, etc., and a communication module for transmitting and receiving signals. Furthermore, the control server includes a signal receiving module that receives signals transmitted from the IoT gateway device, and a received signal. and a database module that stores the information contained therein, a disaster monitoring module that determines the possibility of a slope disaster by identifying the state of the slope based on the received information, and an alarm generation module that generates information and alerts to be provided to managers and users. It may also be included.

In the slope disaster detection and warning system according to the present invention, an integrated sensing IoT device module that applies a low-power operation algorithm to enable battery operation of key indicators of slope disasters such as debris flows and landslides that may occur on the slope using wireless-based communication. Measurements are made with sensors provided in the system, and in particular, the measurement information is transmitted to the control server through the LoRaWAN protocol to identify the possibility of a slope disaster in advance, immediately implement warning measures (sirens and warning lights, etc.) on site, and monitor managers and residents ( Actions such as sending an alert text message to the user are taken. Therefore, according to the present invention, a very useful effect of being able to efficiently prepare for risks caused by slope disasters is achieved.

In particular, the slope disaster detection and warning system according to the present invention has the advantage of high reliability by predicting and identifying the possibility of a slope disaster based on surface slope, surface displacement, and surface soil water content, which are effective in identifying signs of slope collapse. there is.

Furthermore, in the present invention, the integrated sensing IoT device operates on a battery without a constant power supply, so there are no restrictions on installation location, and an IoT gateway device is used that has a configuration that can use solar power generation and charging power at the same time, There is also the advantage of being able to stably operate communication using IoT gateway devices at all times, even in areas where constant power supply is difficult, by using solar power generation and charging power without a constant power supply from outside.

Figure 1 is a schematic diagram showing the overall configuration of a slope disaster detection and warning system according to the present invention.
Figure 2 is a schematic diagram showing the configuration of an integrated sensing IoT device.
Figure 3 is a schematic diagram showing an example of installation (4 stages, 10 blocks) of a surface slope sensor module, a surface displacement sensor module, and a surface soil water content sensor module on a slope.
Figure 4 is a schematic block diagram showing an example of the specific configuration of an IoT gateway device.
Figure 5 is a schematic block diagram showing an example of the configuration of a control server.
Figures 6 (a) to (c) are schematic diagrams each showing an example of a screen displayed on an administrator terminal.
Figure 7 shows the appearance of a fixing fixture according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the attached drawings. The present invention has been described with reference to the embodiment shown in the drawings, but this is described as one embodiment, and the technical idea of the present invention and its core configuration and operation are not limited thereby.

Figure 1 shows a schematic diagram showing the overall configuration of the slope disaster detection and warning system 100 according to the present invention. As illustrated in the drawing, the slope disaster detection and warning system 100 according to the present invention includes an integrated sensing IoT device device (1), an IoT gateway (Internet of Things Gateway) device (2), a control server (3), and an administrator terminal ( 4) and a user terminal 5.

Figure 2 shows a schematic diagram showing the configuration of the integrated sensing IoT device device 1. As illustrated in the drawing, the integrated sensing IoT device device (1) is installed directly on the slope that is the subject of monitoring and directly acquires information that can determine whether a disaster has occurred on the slope, that is, information related to signs of disaster occurrence on the slope. Specifically, a surface slope sensor module (10) that measures changes in the surface slope, a surface displacement sensor module (11) that measures the displacement of the surface, a surface soil water content sensor module (12) that measures the water content of the surface soil, and a field It is configured to include an alarm device (13).

As mentioned above, 'surface collapse', where shallow soil on the surface layer mainly slides down, may occur on a slope, and a surface slope sensor module 10 installed on the slope is provided in the present invention, and a surface slope sensor module ( The surface slope and its changes are measured through the surface slope sensor provided in 10). The ground slope sensor 110 provided in the ground slope sensor module 10 may be configured as a sensor capable of simultaneously measuring the ground slope in each axis direction of a three-axis rectangular coordinate system. In addition, in the present invention, a ground displacement sensor module 11 is installed on the slope, and the displacement in the vertical and horizontal directions of the ground (vertical displacement, horizontal displacement) are measured respectively. Slope disasters can be caused by heavy rain and the resulting change in the water content of the surface soil. Therefore, the present invention is provided with a surface soil water content sensor module 12 that includes a water content measurement sensor 112 that is installed on the surface and measures the water content of the soil forming the surface.

FIG. 3 shows a schematic diagram showing an example of installing the ground slope sensor module 10, the ground displacement sensor module 11, and the ground soil moisture content sensor module 12 on the slope 300. In the installation form illustrated in FIG. 3, the slope is divided into four stages according to height so that the collapse of the slope 300 can be effectively predicted, and each stage is divided into a plurality of blocks in the horizontal direction and has a total of 10 blocks. is partitioned, the ground displacement sensor module 11 is installed in a two-way manner so that the wire of the ground displacement sensor (expressed as a thick line W in the drawing) extends perpendicular to the slope, and the surface soil water content sensor module 12 is installed according to the national Based on the ‘Standards for Measurement and Management of Steep Slopes Based on Empirical Experiments’ of the Korea Disaster and Safety Agency, 1 type is installed in the 2nd and 3rd stages from the top, and 2 types are installed in the 4th stage, the lowest level, and the ground slope sensor module (10) is installed in the 4th stage from the top. Two sets are installed in each of the 3rd and 4th stages. Through this installation configuration, it is possible to very efficiently acquire on-site information that can predict slope collapse as a slope disaster. However, the configuration for installing the surface slope sensor module 10, the surface displacement sensor module 11, and the surface soil water content sensor module 12 is not limited to this.

Signals containing information (field collection data) measured by the above-described modules provided in the integrated sensing IoT device device 1 are transmitted to the IoT gateway device 2. For this purpose, each of the surface slope sensor module 10, the surface displacement sensor module 11, and the surface soil water content sensor module 12 may be equipped with an individual communicator 101. The individual communicator 101 can be mounted on a fixed installation device 102 and installed on a slope. The fixing device 102 includes a body 1021 formed to be embedded in a slope, a plurality of fixed wings 1022 that are hinged and elastically supported on the side of the body, and a protrusion 1023 formed on the bottom surface of the fixed wings 1022. can be provided. Therefore, when the body 1021 is driven into the slope, the fixed wings 1022 not only spread out from the body according to the shape of the slope and come into close contact with the slope by the elastic member, but also the protrusion 1023 is driven into the slope, so that the fixing installation ( 102) can be firmly fixed to the slope.

The sensors and individual communicators provided in each of the above sensor modules can transmit and receive signals using interfaces such as UART/RS485, GPIO, and I2C. In this configuration, the surface slope sensor 110, the surface displacement sensor 111, and the surface soil water content sensor are provided in each of the surface slope sensor module 11, the surface displacement sensor module 12, and the surface soil water content sensor module 13. The signal of information measured at 112 is transmitted to each IoT gateway device 2 by the individual communicator 101.

However, the present invention is not limited to this configuration, and depending on the embodiment, an individual communicator 101 is separately installed in each of the surface slope sensor module 10, the surface displacement sensor module 11, and the surface soil water content sensor module 12. Rather than being provided, one integrated communicator may be provided to receive all signals from each sensor and transmit them to the IoT Gateway device (2).

The field alarm device 13 is a device installed at or near the site of a slope to generate an alarm in the form of sound or light. For example, it may be a siren device that generates sound or a device that generates light. It can be made up of various types of warning lights.

The IoT gateway device (2) relays the signal from the integrated sensing IoT device device (1) to the control server (3). That is, the IoT gateway device 2 receives signals from the surface slope sensor module 10, the surface displacement sensor module 11, and the surface soil water content sensor module 12 provided in the integrated sensing IoT device device 1 and controls them. It is transmitted to the server (3). At this time, it is particularly desirable to use LoRaWAN (Long Range Wide Area Network) as communication for transmitting and receiving signals.

Meanwhile, although not shown, the integrated sensing IoT device further includes a GPS sensor, and the GPS sensor is normally in Sleep mode and switches to Active mode when the ground slope and its change value measured by the ground slope sensor are above a threshold. At the same time, by transmitting GPS coordinates to the server, it is possible to remotely determine whether the integrated sensing IoT device has been stolen or damaged by animals while minimizing battery consumption.

FIG. 4 shows a schematic block diagram showing an example of the specific configuration of the IoT gateway device 2. For efficient operation, the IoT gateway device 2 is equipped with an IoT gateway 20 and solar power generation using a solar panel to independently supply power to be consumed by the IoT gateway device 2. It is comprised of a module 21, a charging module 22 made of a battery to store generated power, and a communication module 23 for transmitting and receiving signals.

When using existing IoT gateways, there are limitations due to difficulties in using constant power and configuring a wired backhaul network. In the present invention, the IoT gateway device 2 needs to be installed in an area near a slope, and the IoT gateway device 2 is equipped with a solar power generation module 21 and a charging module 22 to provide constant power from the outside. By using solar power generation and charging power without supply, the IoT Gateway device (2) can be operated stably at all times even in areas where constant power supply is difficult. Also, in the communication module (23) By performing signal transmission and reception operations using LoRaWAN (Long Range Wide Area Network), stable and efficient transmission and reception of information signals can be achieved.

Figure 5 shows a schematic block diagram showing the configuration of the control server 3. The control server (3) receives and stores the signal transmitted from the IoT Gateway device (2), and the information contained in the signal includes soil composition, rainfall, existing surface slope, surface displacement, and surface area in each hazardous slope area. By referring to the soil water content DB, the threshold values of the caution/warning/serious stage are determined, and according to the range of each detector threshold, the alarm status of the slope and sensor detection values are displayed on the control server monitor and administrator terminal (4) and displayed to the user. Necessary information and commands are sent to the terminal 5. For this purpose, the control server (3) includes a signal reception module (30) that receives the signal transmitted from the IoT gateway device (2), a database module (31) that stores the received signal and the information contained therein, and a device that determines the state of the slope and It may include a disaster monitoring module 32 that determines the possibility of a slope disaster occurring, and an alarm generation module 33 that generates information and alerts to be provided to managers and users.

The signal reception module 30 of the control server 3 receives a signal transmitted from the IoT gateway device 2, and the received signal is stored in the database module 31. The database module 31 also stores information such as analysis results from the disaster monitoring module 32. In addition, the database module 31 contains information on the installation location and installation date of each sensor module constituting the integrated sensing IoT device device 1, various communication information related to the communication protocol, etc., and information related to the charging module 22 such as the remaining amount of the battery. Information can also be stored. All information stored in the database module 31 is managed and operated by the administrator, and the information stored in the database module 31 may be utilized in connection with the National Disaster and Safety Portal.

The disaster monitoring module 32 identifies the condition of the slope based on the received information and determines the possibility of a slope disaster occurring. That is, the disaster monitoring module 32 provides information about the surface slope and its changes measured and sent by the surface slope sensor module 10, and the vertical and horizontal displacement of the surface measured and sent by the surface displacement sensor module 11, and further The possibility of a slope disaster is predicted by identifying changes in the condition of the slope based on information such as the water content measurement value (optimal moisture content measurement value) of the surface soil and its changes sent from the surface soil water content sensor module 12. At this time, for example, threshold values are predetermined for each change in surface slope, displacement of the surface, and change in surface soil water content, and one of the changes in surface slope, displacement of the surface, and change in surface soil water content (optimal water content ratio) is set in advance. When a critical value is reached, a disaster may be considered to occur on a slope.

In particular, in predicting the possibility of a slope disaster occurring based on measurement information about the surface slope and its changes, measurement information about the vertical and horizontal displacement of the surface, and measurement information about the moisture content (optimal moisture ratio) of the surface soil and its changes. , "National Disaster and Safety Research Institute's Empirical Experiment Based Measurement and Management Standards for Steep Slopes" can be used, and as additional information, information on precipitation and soil characteristics in the area where the slope to be detected exists can be used.

Of course, various existing criteria can be used as specific criteria for determining whether a slope disaster such as a debris flow is likely to occur based on changes in surface slope, displacement of the surface, and changes in surface soil water content. In particular, the disaster monitoring module 32 may be configured to determine the possibility of a slope disaster occurring by deep learning-based artificial intelligence using information received from the sensor modules and other collected information.

The alarm generation module 33 generates information and alarms to be provided to administrators and users. In the alarm generation module 33, information measured by each of the surface slope sensor module 10, the surface displacement sensor module 11, and the surface soil water content sensor module 12 so that managers, users, etc. can know the state of the slope, The information analyzed by the disaster monitoring module 32 is processed into various forms and transmitted to the administrator terminal 4 and user terminal 5, which will be described later.

Additionally, the alarm generation module 33 generates various types of alarms according to the judgment results in the disaster monitoring module 32. For example, the risk level of a slope disaster occurrence is divided into caution/caution/serious level, and an alert for the corresponding risk level is sent to the manager terminal 4 and At the same time as transmitting to the user terminal 5, the signal can be transmitted so that the field alarm device 13 installed at or near the slope is activated.

The administrator terminal 4 and the user terminal 5 are devices used by the administrator and the user, respectively, and may be made of various types of devices such as mobile phones, PCs, and tablet devices. Managers and users can check various information about the current state of the slope through the manager terminal (4) and the user terminal (5) through visual methods, sensory methods such as sound or vibration, and receive various alarms, etc. There will be.

Figures 6 (a) to (c) show an example of a screen displayed on the manager terminal 4, respectively. Figures 6 (a) and (b) show a slope on the manager terminal 4, respectively. A screen on which monitoring information is displayed is illustrated, and Figure 6 (c) shows an example of an SMS sending screen and an SMS setting screen displayed on the manager terminal 4.

In particular, through the manager terminal 4, the manager can perform management tasks such as setting or adjusting various values. For example, the manager can preset threshold values for changes in surface slope, surface displacement, and changes in surface soil water content. You can perform input or adjustment tasks by specifying .

In addition, the administrator can perform various setting tasks related to emergency text messages or step-by-step warning text messages related to the occurrence of a slope disaster through the administrator terminal (4). For example, emergency text messages or step-by-step warning text messages related to the occurrence of a slope disaster. You can perform settings for management, such as adding or deleting recipients, and send an emergency SMS alert message to the user terminal (5) by manual operation on the administrator terminal (4) to prevent slope disasters. It can also help you prepare.

Meanwhile, although not shown, the integrated sensing IoT device device measures the ground slope sensor in each axis direction of the Cartesian coordinate system every minute, and when the change in surface slope (°/min) is below the standard value, the ground displacement sensor and the surface soil water content sensor are used in a resting state ( Sleep Mode) and transmit the measured values to the control server every hour. If the surface slope change (°/min) is above the standard value, the surface displacement sensor is switched to wakeup mode and the surface slope and surface displacement are measured every minute. The surface soil water content sensor is normally in sleep mode, but when the displacement (mm/day) measured by the surface displacement sensor is above the standard value, the surface soil water content sensor is switched to active mode (Wakeup Mode) and the surface soil water content sensor is sent to the surface every 10 minutes. The soil water content value (%) may be measured and transmitted to the control server. When the integrated sensing IoT device operates as above, only the surface slope sensor operates in normal times, and the surface displacement sensor and surface soil water content sensor are maintained in a resting state, and the surface displacement sensor operates only when the change in surface slope is greater than the standard value. Since the surface soil water content sensor operates only when the displacement measured by the surface displacement sensor is above the standard value, the integrated sensing IoT device can be operated with low power.

The present invention has been described with reference to the embodiments shown in the attached drawings, but these are merely illustrative, and those skilled in the art will understand that various modifications and other equivalent embodiments are possible therefrom. There will be. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

1: Integrated sensing IoT device device
2: IoT gateway device
3: Control server
4: Administrator terminal
5: User terminal
10: Ground slope sensor module
11: Ground displacement sensor module
12: Surface soil moisture content sensor module
13: On-site alarm device
20: IoT gateway
21: Solar power module
22: Charging module
23: Communication module
30: Signal reception module
31: Database module
32: Disaster monitoring module
33: Alarm generation module
100: Integrated sensing IoT device
300: slope
102: Fixed installation port
1021: body
1022: Fixed wing
1023: protrusion

Claims (5)

An integrated sensing IoT device installed directly on the slope subject to monitoring to measure surface slope and its changes, surface displacement, surface soil water content and its changes;
An IoT gateway device that relays a signal transmitted from the integrated sensing IoT device device to a control server;
Receives and stores signals transmitted from the IoT gateway device, monitors the condition of the slope based on the information contained in the received signal, determines whether and the possibility of a slope disaster occurring, stores the information, and stores the information in the administrator terminal and user terminal, respectively. A control server that sends information and commands;
an administrator terminal that receives and displays information and commands from the control server and receives information for management from the administrator; and
It includes a user terminal used by the user to receive information including a slope disaster occurrence warning,
The integrated sensing IoT device device,
A ground slope sensor module that measures the slope of the ground and its changes by embedding a ground slope sensor capable of simultaneously measuring the slope of the ground in each axis direction of the rectangular coordinate system;
A ground displacement sensor module equipped with a ground displacement sensor to measure displacement of the ground in the vertical and horizontal directions, respectively;
A surface soil water content sensor module that is equipped with a water content measurement sensor to measure the water content of the soil forming the surface and measures the surface soil water content and its changes; and
It includes an on-site alarm device installed at the site of the slope and generating an alarm in the form of sound or light,
The surface slope sensor module, the surface displacement sensor module, and the surface soil water content sensor module include a body so that it can be embedded in a slope, a plurality of fixed wings hinged to the side of the body and elastically supported, and protrusions formed on the bottom surface of the fixed wings. It is mounted on a fixed installation device equipped with an individual communicator that transmits signals to the IoT gateway device, and the measured information is individually transmitted through the individual communicators.
The integrated sensing IoT device further includes a GPS sensor, and the GPS sensor is normally in Sleep mode, but switches to Active mode when the value measured by the ground slope sensor is greater than a threshold and simultaneously transmits GPS coordinates to the server. An IoT-based slope disaster detection and warning system that is capable of detecting whether or not an integrated sensing IoT device device has been stolen. delete According to paragraph 1,
The IoT gateway device is comprised of an IoT gateway, a solar power generation module that generates solar power using a solar panel to supply power to be consumed by the IoT gateway device by itself, and a battery to store the generated power. An IoT-based slope disaster detection and warning system comprising a module and a communication module for transmitting and receiving signals. According to paragraph 1,
The control server includes a signal reception module that receives the signal transmitted from the IoT gateway device, a database module that stores the received signal and the information contained therein, and a database module that stores the received signal and the information contained therein, and determines the condition of the slope based on the received information to determine the possibility of a slope disaster. An IoT-based slope disaster detection and warning system comprising a disaster monitoring module that makes judgments and an alarm generation module that generates information and alarms to be provided to managers and users. According to paragraph 1,
In the integrated sensing IoT device, the ground slope sensor measures the ground slope in each axis of the Cartesian coordinate system every minute, and when the surface slope change (°/min) is below the standard value, the ground displacement sensor and surface soil water content sensor are kept in sleep mode. The measured values are transmitted to the control server every hour. If the surface slope change (°/min) is greater than the standard value, the surface displacement sensor is switched to wakeup mode, and the surface slope and surface displacement are measured and transmitted every minute. The soil water content sensor is normally in sleep mode, but when the displacement (mm/day) measured by the surface displacement sensor is greater than the standard value, the surface soil water content sensor is switched to active mode (Wakeup Mode) and records the surface soil water content value every 10 minutes ( %) is an IoT-based slope disaster detection and warning system that measures and transmits it to the control server.

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