WO2022092459A1

WO2022092459A1 - Real-time unmanned slope monitoring system having power management function

Info

Publication number: WO2022092459A1
Application number: PCT/KR2021/005576
Authority: WO
Inventors: 김영민; 김용광; 곽승준
Original assignee: 주식회사 이에스피
Priority date: 2020-10-29
Filing date: 2021-05-04
Publication date: 2022-05-05
Also published as: KR102241254B1

Abstract

The present invention relates to a real-time unmanned slope monitoring system, and more particularly, to a real-time unmanned slope monitoring system having a sensor network power management function. The purpose of the present invention is to provide a real-time unmanned slope monitoring system having a power management function. A real-time unmanned slope monitoring system having a power management function according to one embodiment of the present invention comprises: a power monitoring unit which monitors the state of charge (SoC) of a battery at preset intervals, and transmits the SoC of the battery to a gateway at preset intervals; and a power management unit which varies an adaptive power threshold of the SoC of the battery according to events on a slope being monitored. The present invention can efficiently manage power according to the state of the slope by varying the adaptive power threshold of the SoC of the battery according to events on the slope being monitored.

Description

Slope real-time unmanned monitoring system with power management function

The present invention relates to a real-time unattended slope monitoring system, and more particularly, to a real-time unmanned slope monitoring system having a power management function of a sensor network.

Recently, as the demand for land increases and the number of people pursuing a nature-friendly life increases, land development such as roads and residential areas in natural environments such as mountainous areas is increasing.

Due to this increase in land development, the formation of slopes such as slopes and cliffs increases on the land, and the increase in slopes may collapse due to natural disasters such as rainfall or earthquakes, which may cause damage such as human casualties. Therefore, it is important to monitor the slope collapse by sensing the environmental information of the slope in real time.

An object of the present invention is to provide a real-time unattended slope monitoring system having a power management function.

A slope real-time unattended monitoring system having a power management function according to an embodiment of the present invention includes: a power monitoring unit for monitoring a state of charge (SoC) of a battery at a preset cycle, and transmitting the SoC of the battery to a gateway at a preset cycle; and a power management unit varying an adaptive power threshold value of the SoC of the battery according to an event on the monitored slope.

Here, the initial value of the adaptive power threshold value is set as a basic threshold value, and the power management unit determines that a sensing value exceeding the second threshold value among the sensing values of one inclinometer sensor for each area by the sensing period adjusting unit exists Then, the adaptive power threshold value may be adjusted upward from the basic threshold value to a preset first upward threshold value.

In addition, when the sensing period adjusting unit determines that a sensing value exceeding the third threshold value among the sensing values of one inclinometer sensor per zone exists, the power management unit may increase the adaptive power threshold value to a second upward threshold value. there is.

According to the present invention, the power supply can be efficiently managed according to the state of the slope by varying the adaptive power threshold of the SoC of the battery according to an event on the slope to be monitored.

1 is a conceptual diagram of a real-time unattended slope monitoring system to which the present invention is applied.

2 shows a schematic diagram of a measurement system.

3 shows a configuration diagram of an integrated multi-sensor.

4 shows the hardware system configuration of the integrated multi-sensor.

5 is a view for explaining a system in which a plurality of integrated multi-sensors are installed on a slope.

6 is a view for explaining a slope divided into a plurality of zones and sub-zones.

7 is a schematic diagram of a slope monitoring system;

8 is a functional block diagram of the integrated multi-sensor of FIG. 7 .

9 is a functional block diagram of the control module of FIG.

FIG. 10 is a functional block diagram of the gateway of FIG. 7 .

11 is a flowchart of a process of a sensing cycle adjusting unit varying a data collection cycle.

12 is a flowchart of a process of a sensor diagnosis unit diagnosing a sensor.

13 is a functional block diagram of the service apparatus of FIG. 7 .

14 is a diagram for explaining an adaptive power threshold value.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

In describing each figure, like reference numerals have been used for like elements. In describing the present invention, if it is determined that a detailed description of a related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be

On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention.

The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, a real-time unattended slope monitoring system according to a preferred embodiment of the present invention will be described with reference to the accompanying FIGS. 1 to 14 . Hereinafter, in order to clarify the gist of the present invention, descriptions of previously known matters will be omitted or simplified.

First, referring to FIG. 1 , the real-time unattended slope monitoring system includes a sensor installed at the slope site and a real-time integrated management server. The wired/wireless communication network may provide communication between the field-installed sensor and the integrated management server. The field-installed sensor may be an integrated multi-sensor in which various sensors are embedded. The service device of the present invention may be implemented as an integrated management server. Specific details on this will be described later.

The integrated management server can provide real-time monitoring and data analysis functions. In this case, data analysis may be performed by an expert. Information received by the server may be stored and managed in a database.

The integrated management server may receive image information from a field-installed sensor and provide a real-time image. The server may provide real-time image information and data received from a field-installed sensor to the manager terminal.

By analyzing the data provided by the integrated management server, promotion recovery work may be performed.

Referring to FIG. 2 , an integrated multi-sensor may be installed on a slope.

Referring to FIG. 3 , the integrated multi-sensor may include a camera, an inclinometer, an accelerometer, a control board, and a water content and underground temperature sensor.

The camera can acquire an image for all 360 degrees. The inclinometer sensor and the acceleration sensor may sense the ground displacement. The water content sensor can measure the water content inside the surface. The ground temperature sensor may sense the temperature inside the surface. The control board may control sensing operations of the camera, the inclinometer sensor, the acceleration sensor, the water content sensor, and the ground temperature sensor according to a preset sequence. The support may be fixed by being inserted into the ground by a preset depth. Above the support, a camera, an inclinometer and an acceleration sensor may be installed. It is preferable that the camera, the inclinometer sensor, and the acceleration sensor are installed so as to be exposed to the outside of the soil for easy maintenance/repair.

Referring to FIG. 4 , the integrated multi-sensor includes a camera for detecting an image, an inclinometer sensor for measuring inclination, an acceleration sensor for measuring acceleration, a water content sensor for measuring the water content in the ground, and a ground temperature sensor for measuring the underground temperature. can do. The camera, the inclinometer sensor, the acceleration sensor, the water content sensor, and the ground temperature sensor may wirelessly communicate with the control board (see FIG. 3 ). In this case, the ZigBee standard may be applied. In addition, the control board may communicate with an external device (eg, an integrated management server) through an LTE communication network. In this case, the control board may access the LTE network through the gateway. Specific details on this will be described later.

Referring to FIG. 5 , a plurality of integrated multi-sensors may be installed at each of a plurality of sensing points on a slope. Each of the plurality of integrated multi-sensors has a unique ID, and the administrator can view data of a specific integrated multi-sensor by selecting the integrated multi-sensor ID.

The following will be described in detail with respect to the slope real-time unmanned monitoring system to which the integrated Milti sensor is applied according to a preferred embodiment of the present invention.

Referring to FIG. 6 , in the real-time unmanned monitoring system of the present invention, the slope to be monitored may be divided into a plurality of zones. And, each zone may be partitioned into a plurality of lower zones. The slope to be monitored may have a plurality of non-uniform slopes. Specifically, the slope to be monitored may have various inclinations. There may be a section with a gentle slope and a section with a steep slope on the slope to be monitored. That is, a section with a steep slope may have a higher risk of collapse than a section with a gentle slope. Accordingly, the present invention may divide the monitoring target slope into a plurality of zones based on the inclination of the monitoring target slope. Points belonging to the same area may have similar slopes.

6 exemplifies a case in which a slope to be monitored is partitioned into n zones. Based on FIG. 6 , the monitoring target slope may be divided into a first zone (Z1), a second zone (Z2), ..., an nth zone (Zn). The first zone Z1 is divided into lower zones Z1-1, Z1-2,..., Z1-n, and the second zone Z2 is divided into lower zones Z2-1, Z2-2,... ., Z2-n), and the n-th region (Zn) may be divided into lower regions (Zn-1, Zn-2, ..., Zn-n).

Integrated multi-sensor (S1-1, S1-2,..., S1-n, S2-1, S2-2,..., S2-n,..., Sn-1, Sn -2,..., Sn-n, hereinafter collectively referred to as "S") may be installed.

In such a system, since the inclinometer sensors on a plurality of integrated multi-sensors installed in the same area are installed in an environment having the same inclination, the same or extremely similar sensing values can be output in an event such as a collapse sign. In addition, since collapse or signs of collapse typically occur over an area that can be distinguished by a condition of the ground (eg, ground slope), rather than a very localized area, the same area may have the same or the same indication of collapse or collapse. Extremely similar displacements can be formed.

Referring to Figure 7, as seen above, the slope real-time unmanned monitoring system including a plurality of integrated multi-sensor integrated multi-sensors (S1- 1, S1-2,..., S1-n, S2-1, S2-2,..., S2-n,..., Sn-1, Sn-2,..., Sn-n, Hereinafter, referred to as “S”), the gateway 200 and the service device 300 may be included. The plurality of integrated multi-sensors S and the gateway 200 may communicate through the first communication network 10 . In this case, the first communication network 10 may use a wireless communication network standard such as Zigbee. The gateway 200 and the service device 300 may communicate through the second communication network 20 . In this case, the second communication network 20 may be an LTE network. One gateway 200 may be provided for each slope to be monitored.

The gateway 200 collects sensing data from a plurality of integrated multi-sensors (S), controls the sampling and transmission period of sensing data of a plurality of integrated multi-sensors (S), and serves data collected from a plurality of integrated multi-sensors (S) A function such as transmission to the device 300 may be performed.

Referring to FIG. 8 , the integrated multi-sensor S includes a camera 111 , an inclinometer sensor 112 , an acceleration sensor 113 , a water content sensor 114 , a ground temperature sensor 115 , a control module 120 , and a battery. 130 , a solar module 140 and a charging/discharging unit 150 may be included.

The camera 111 captures a surrounding image when a preset condition is met (when the gateway 200 recognizes that a collapse event has occurred by the sensing value of the inclinometer sensor 112 to be described later), and transmits the captured image to the gateway (200) can be transmitted.

The inclinometer sensor 112 may sense the inclination of the slope in two dimensions.

The acceleration sensor 113 may three-dimensionally sense the displacement of the slope. The information processing amount of the control module 120 for calculating the change from the sensing value of the acceleration sensor 113 may be greater than the information processing amount of the control module 120 for calculating the slope from the sensing value of the inclinometer sensor 112 . In addition, a data size for transmitting the sensing value of the acceleration sensor 113 to the gateway 200 may be larger than a data size for transmitting the sensing value of the inclinometer sensor 112 to the gateway 200 . That is, the power consumed by the integrated multi-sensor S for processing and transmission of the value sensed by the acceleration sensor 113 may be greater than that of the inclinometer sensor 112 . Accordingly, the acceleration sensor 113 performs a sensing operation and a sensing data transmission operation only when it is recognized that a collapse event has been initiated through the sensing value of the inclinometer sensor 112, thereby minimizing unnecessary power consumption from the viewpoint of system operation. can

The water content sensor 114 may sense the water content in the ground and transmit the sensed value to the gateway 200 , and the underground temperature sensor 115 may sense the temperature in the ground and transmit it to the gateway 200 .

Referring to FIG. 9 , the control module 120 may include a sensing unit 121 , a sensing period setting unit 122 , a communication unit 123 , and a power monitoring unit 124 .

The sensing unit 121 includes an image provided by the camera 111 , a sensing value of the inclinometer sensor 112 , a sensing value of the acceleration sensor 113 , a sensing value of the water content sensor 114 , and sensing of the underground temperature sensor 115 . values can be collected.

The sensing period setting unit 122 determines the period at which the sensing unit 121 collects the image from the camera 111 and transmits it to the gateway 200 under the control of the gateway 200, and the sensing value from the inclinometer sensor 112. The period of collecting and transmitting to the gateway 200, the period of collecting the sensing value from the acceleration sensor 113 and transmitting it to the gateway 200, the period of collecting the sensing value from the moisture content sensor 114 and transmitting it to the gateway 200 , it is possible to vary the period of collecting the sensing value from the underground temperature sensor 115 and transmitting it to the gateway 200 .

The communication unit 123 may provide communication with the gateway 200 using the first communication network 10 .

The power monitoring unit 124 may monitor the state of charge (SoC) of the battery 130 at a preset cycle. In addition, the power monitoring unit 124 may transmit the SoC of the battery 130 to the gateway 200 at a preset period.

The battery 130 may supply power required for the integrated multi-sensor S to operate.

The solar module 140 may generate electricity through solar power generation.

The charging/discharging unit 150 may charge the battery 130 with electricity produced by the solar module in the charging mode, and in the discharging mode, the electricity charged by the battery 130 may be supplied to the control module 120 . . In this case, the control module 120 may supply power required for the operation of the camera 111 , the inclinometer sensor 112 , the acceleration sensor 113 , the water content sensor 114 , and the underground temperature sensor 115 .

Referring to FIG. 10 , the gateway 200 includes a sensing value collecting unit 210 , a sensing period adjusting unit 220 , a data transmitting unit 230 , a sensor diagnosis unit 240 , a first communication unit 250 and a second It may include a communication unit 260 . The first communication unit 250 may support communication between the gateway 200 and the integrated multi-sensor S. The second communication unit 250 may support communication between the gateway 200 and the service device 300 .

The sensing value collection unit 210 collects images captured by the camera 111 on the plurality of integrated multi-sensors (S), and collects the sensing values of the inclinometer sensors 112 on the plurality of integrated multi-sensors (S), Collecting the sensing values of the acceleration sensor 113 on the plurality of integrated multi-sensors (S), collecting the sensing values of the water content sensor 114 on the plurality of integrated multi-sensors (S), and collecting the sensing values of the plurality of integrated multi-sensors (S) It is possible to collect the sensing value of the underground temperature sensor 115 on the upper surface. The sensing value collection unit 210 may collect an image captured by the camera 111 when it is determined that a collapse event has occurred by the sensing period adjustment unit 220 . The sensing value collecting unit 210 may collect the sensing values of the water content sensor 114 and the underground temperature sensor 115 at a preset period. The sensing value collecting unit 210 may collect the sensing value of the inclinometer sensor 112 and the sensing value of the acceleration sensor 113 according to the data collection period determined by the sensing period adjusting unit 220 . The data collection period of the inclinometer sensor 112 may be the same as the sampling period of the sensing value of the inclinometer sensor 112 of the control module 120 . The data collection period of the acceleration sensor 113 may be the same as the sampling period of the sensing value of the acceleration sensor 113 of the control module 120 .

Hereinafter, details of the sensing period adjusting unit 220 varying the data collection period will be described in detail.

Referring to FIG. 11 , in the initial setting mode, the sensing value collecting unit 210 may collect a sensing value of one inclinometer sensor 112 for each zone in a first cycle ( S1 ). At this time, since a plurality of inclinometer sensors 112 are installed for each zone, the sensing value collecting unit 210 performs a plurality of inclinometer sensors 112 installed in the same zone for each first period according to the data transmission order of the plurality of inclinometer sensors 112 installed in the same zone. Only one sensing value of the inclinometer sensor 112 may be collected. Thereby, power consumption according to data transmission can be reduced from the point of view of the area. And, in response to step S1 , the sampling period of the sensing value of the inclinometer sensor 112 of the control module 120 may be the first period.

The sensing period adjusting unit 220 may use the sensing value of the inclinometer sensor 112 collected in S1 to determine whether there is a sensing value exceeding the second threshold among the sensing values of the inclinometer sensor for each zone (S2) ). At this time, if it is determined that the second threshold is not exceeded, it may return to S1.

If it is determined in S2 that there is a sensed value exceeding the second threshold, the sensing period adjusting unit 220 sets the period in which the sensing value collecting unit 210 collects the sensing value of one inclinometer sensor 112 for each zone. It can be changed to the second cycle. In addition, the sensing value collecting unit 210 may collect one inclinometer sensor sensing value for each zone in the second cycle (S3). In this case, the second period may be shorter than the first period. Accordingly, the sampling period of the sensing value of the inclinometer sensor 112 of the control module 120 may also be changed to the second period. Thereby, it is possible to quickly recognize the start time of the sign of collapse. In S2, whenever the sensing period adjusting unit 220 determines that there is a sensed value exceeding the second threshold, the data transmitting unit 230 sends the event information collecting unit 310 to the event information collecting unit 310 to exceed the second threshold. It is possible to transmit a first alert message notifying that In this case, the first warning message may include identification information of the integrated multi-sensor (S) providing a sensing value exceeding the second threshold.

The sensing period adjusting unit 220 may determine whether there is a sensed value exceeding the third threshold among the sensing values of one inclinometer sensor 112 for each zone collected in the second period ( S4 ). If it is determined in S4 that there is no sensed value exceeding the third threshold, the process may return to S2. Here, the third threshold may be a value greater than the second threshold.

If it is determined in S4 that there is a sensed value exceeding the third threshold, the sensing period adjusting unit 220 may activate all inclinometer sensors 112 in all zones (S5). In this case, the sensing value collecting unit 210 may collect the sensing values of all inclinometer sensors 112 in all zones according to the third period. Thereby, it may be possible to detect the collapse event early in the condition that minimizes the power consumption of the integrated multi-sensor (S). In S4, whenever the sensing period adjusting unit 220 determines that there is a sensed value exceeding the third threshold, the data transmitting unit 230 sends the event information collecting unit 310 to the third threshold in the slope. It is possible to transmit a second warning message notifying that In this case, the second warning message may include identification information of the integrated multi-sensor (S) that provides a sensing value exceeding the third threshold.

In addition, the sensing period adjusting unit 220 may determine whether there is a sensed value exceeding a fourth threshold among the sensed values of all inclinometer sensors 112 in all zones (S6). If it is determined in S6 that there is no sensed value exceeding the fourth threshold, the process may return to S4. Here, the fourth threshold may be a value greater than the third threshold.

On the other hand, if it is determined in S6 that a sensed value exceeding the fourth threshold exists, the sensing period adjusting unit 220 may recognize that the collapse event has occurred (S7).

In this case, the sensing period adjusting unit 220 may transmit a control command to the integrated multi-sensor S so that the control module 220 activates the acceleration sensor 113 . In addition, the sensing value collecting unit 210 may collect the sensing value of the acceleration sensor 113 in a third cycle (S8). Here, the third period may be shorter than the second period. As such, by activating the acceleration sensor 113 only when a collapse event occurs, unnecessary power consumption of the integrated multi-sensor S can be minimized.

In addition, the sensing period adjusting unit 220 may determine whether the collapse event progresses from the high-level phase to the low-fall phase (S9). If it is determined in S9 that the collapse event progresses from the rising stage to the subdued stage, the collection period of the sensing value of the acceleration sensor 113 may be changed to a fourth period ( S10 ). The fourth period may be longer than the third period.

If it is determined in S9 that the collapse event does not progress from the rising stage to the subdued stage, the sensing period adjusting unit 220 may determine whether the collapse event progresses from the starting stage to the rising stage ( S11 ). In S11, if it is determined that the collapse event progresses from the start stage to the heightening stage, the sensing period adjuster 220 may change the collection period of the sensing value of the acceleration sensor 113 to a fifth period (S12). Here, the fifth period may be shorter than the third period.

If it is determined in S11 that the collapse event does not progress from the start stage to the heightening stage, the sensing period adjuster 220 may determine whether the collapse event has ended (S13). If it is determined in S13 that the event has not ended, the process may return to S9. If it is determined that the event has ended in S13, it may return to S1.

The sensing period adjusting unit 220 may analyze the trend of the collapse event by using the sensing value of the acceleration sensor 113 . In this case, the sensing period control unit 220 may determine whether the collapse event is in a transition from the start stage to the high phase and whether the collapse event is in the transition from the high phase to the subdued state. If the rate of change of displacement of the slope per unit time is increased through the sensing value of the acceleration sensor 113 , the sensing period adjusting unit 220 may determine that the collapse event is in a transition from the start stage to the heightening stage. If the rate of change of displacement of the slope per unit time is decreased through the sensing value of the acceleration sensor 113 , the sensing period adjusting unit 220 may determine that the collapse event is in a transition from the rising phase to the calm phase.

In this way, by varying the collection period of the sensing value of the acceleration sensor 113 according to the change trend of the collapse event, unnecessary power consumption in the integrated multi-sensor S is reduced and at the same time, the slope displacement is reduced by adapting to the collapse risk. It can be reliably monitored.

Referring back to FIG. 10 , the data transmission unit 230 includes the image captured by the camera 111 collected by the sensing value collection unit 210 , the inclinometer sensor 112 / the acceleration sensor 113 / the water content sensor 114 . / A value sensed by the ground temperature sensor 115 may be transmitted to the service device 300 . The data transmitter 230 may provide the first alert alert message and the second alert message to the event information collector 310 in real time.

Hereinafter, matters for the sensor diagnosis unit 240 to diagnose the sensor will be described.

Referring to FIG. 12 , first, the sensing value collecting unit 210 may collect one inclinometer sensor sensing value for each zone in a first cycle ( S101 ). S101 may correspond to S1 of FIG. 11 . Specifically, since a plurality of inclinometer sensors 112 are installed for each zone, the sensing value collecting unit 210 performs the data transmission sequence of the plurality of inclinometer sensors 112 installed in the same zone at every first cycle, the plurality of inclinometer sensors It is possible to collect only one sensed value of (112).

Then, the sensor diagnosis unit 240 may determine whether a diagnosis event generation zone exists ( S102 ). In this case, the sensor diagnosis unit 240 may determine a region in which the sensing value of the inclinometer sensor 112 exceeds the first threshold as the diagnosis event generation region. Here, the first threshold may be a value lower than the second threshold in FIG. 11 . This is because it is desirable to reliably monitor the slope to diagnose the inclinometer sensor 112 before the occurrence of signs of collapse exceeding the second threshold. If the diagnosis is performed regularly, the resolution of the abnormality determination may be weak, and the power consumed for diagnosis may be excessive. Therefore, it is preferable that the designer appropriately selects the first threshold to perform the diagnosis in a line in which the resolution is maintained. If it is determined in S102 that the diagnostic event generation zone does not exist, the process may return to S101.

On the other hand, if it is determined in S102 that the diagnostic event generation zone exists, the sensor diagnosis unit 240 transmits a control command to the control module 120 to activate all of the inclinometer sensors 112 existing in the diagnostic event generation zone. can do. In addition, the sensed value collecting unit 210 may collect the sensed values of all inclinometer sensors installed in the diagnostic event generation zone ( S103 ).

Then, the sensor diagnosis unit 240 may determine whether there is a sensing value equal to or less than a value obtained by subtracting a preset reference value from the average value of the sensing values of all inclinometer sensors installed in the diagnosis event generation area collected in S103 (S104). ).

In addition, the sensor diagnosis unit 240 determines that if there is no sensed value equal to or less than a value obtained by subtracting a preset reference value from the average value of the sensed values of all the inclinometer sensors installed in the collected diagnostic event generation area, all values existing in the diagnostic event generation area are not present. It can be recognized that there is no abnormality in the inclinometer sensor 112 (S105).

Alternatively, the sensor diagnosis unit 240 may determine that there is an abnormality in the integrated multi-sensor providing a sensing value equal to or less than a value obtained by subtracting a preset reference value from the average value (S106). Then, the determination result can be transmitted to the outside.

Whether or not the integrated multi-sensor installed remotely operates normally may be checked in real time by the sensor diagnosis unit 240 .

The power management unit 270 may manage the power of the plurality of integrated multi-sensors installed on the slope to be monitored. Hereinafter, a power management operation of the power management unit 270 will be described with reference to FIG. 14 . The power management unit 270 may manage power by setting the adaptive power threshold value The power management unit 270 may vary the adaptive power threshold value of the SoC of the battery according to an event on the slope to be monitored Here, the event on the slope is an event in which 1) the sensing period adjusting unit 220 determines that there is a sensing value exceeding the second threshold among the sensing values of one inclinometer sensor for each zone in S2 (see FIG. 11 ). 2) It may be an event in which the sensing period adjusting unit 220 determines that a sensing value exceeding the third threshold among the sensing values of one inclinometer sensor 112 for each zone exists in S4 (see FIG. 11 ).

The power management unit 270 may collect SoC information of the battery 130 from a plurality of integrated multi-sensors (S) installed on a slope to be monitored.

In addition, the power management unit 270 may provide an external alarm notifying charging when at least one SoC that is less than or equal to the adaptive power threshold among the plurality of collected SoCs exists.

The adaptive power threshold may be set according to the following criteria.

First, the initial value of the adaptive power threshold value may be set as the basic threshold value Th1.

In addition, the power management unit 270 determines that the sensing period adjusting unit 220 determines that there is a sensing value exceeding the second threshold among the sensing values of one inclinometer sensor for each zone in S2 (see FIG. 11 ). The power threshold value may be adjusted upward from the basic threshold value TH1 to the preset first upward threshold value Th2. (1st upward mode)

The state adjusted upward to the first upward threshold value Th2 may be maintained except for a case of a reset according to an external manipulation or an upward adjustment event to the second upward threshold value Th3 to be described later.

In addition, separately from the first upward mode, the power management unit 270 determines that the sensing period adjusting unit 220 sets a third threshold value among the sensing values of one inclinometer sensor 112 for each zone in S4 (see FIG. 11 ). If it is determined that there is an excessive sensing value, the adaptive power threshold may be adjusted upward to the second upward threshold Th3. (2nd upward mode)

The second upward threshold value Th3 may be greater than the first upward threshold value Th2.

The state adjusted upward to the second upward threshold value Th3 may be maintained except in the case of a reset according to an external manipulation.

As described above, since the power supply threshold is adaptively varied according to the slope state, a situation in which the battery is discharged before the collapse event of the slope can be prevented.

Referring to FIG. 13 , the service device 300 may include an event information collection unit 310 , a ground trend analysis unit 320 , and an alarm unit 330 .

The event information collection unit 310 may collect the first alert message and the second alert message from the gateway 200 .

The ground trend analysis unit 230 may analyze the slope state by using the number of times the first warning message and the second warning message are received.

The ground trend analysis unit 230 may calculate the number of times the first warning message is received per unit time (eg, one week) on the slope to be monitored. In addition, when it is determined that the number of times of reception of the first alarm message per unit time is in an increasing trend, the ground trend analysis unit 230 may generate a first alarm alert. The ground trend analysis unit 230 generates a non-linear function for the number of times the first alert message is received per unit time, and if the non-linear function is an increase pattern over a reference time, the number of reception of the first alert message per first unit time increases. It can be determined that in

The ground trend analysis unit 230 may calculate the number of times the second warning message is received per unit time (eg, one week) on the slope to be monitored. In addition, when it is determined that the number of reception times of the second warning message per unit time is in an increasing trend, the ground trend analysis unit 230 may generate a second alarm alert. The ground trend analysis unit 230 generates a non-linear function for the number of times the second warning message is received per unit time, and if the non-linear function is an increasing pattern over a reference time, the number of reception of the second warning message per second unit time increases. It can be determined that in Here, the second unit time may be shorter than the first unit time. Since the second warning message indicates a stronger slope collapse sign than the first warning message, the second unit time is preferably shorter than the first unit time. And, the second unit time is preferably calculated according to the following equation.

[Equation 1]

here,

< 1

is an arbitrary proportional coefficient, and may be appropriately adjusted by the designer for stable monitoring intensity adjustment of the slope.

The alarm unit 330 may provide a first alarm alarm and a second alarm alarm to the outside. Thereby, the slope maintenance/repair operation can be performed immediately according to the type of alarm alarm.

Claims

a power monitoring unit that monitors a state of charge (SoC) of the battery at a preset cycle and transmits the SoC of the battery to a gateway at a preset cycle; and

A slope real-time unattended monitoring system having a power management function including a power management unit that varies an adaptive power threshold of the SoC of the battery according to an event on the slope to be monitored.
The method of claim 1,

The initial value of the adaptive power threshold is set as a basic threshold,

When the sensing period adjusting unit determines that a sensing value exceeding a second threshold value among the sensing values of one inclinometer sensor for each zone exists, the power management unit sets the adaptive power threshold value to a preset first increase from the basic threshold value. A slope real-time unmanned monitoring system with a power management function, characterized in that it is adjusted upward to a threshold value.
The method of claim 1,

The power management unit increases the adaptive power threshold to a second upward threshold when the sensing period adjuster determines that a sensing value exceeding a third threshold among sensing values of one inclinometer sensor for each zone exists Slope real-time unmanned monitoring system with power management function.