KR102582309B1 - Underground pipe state monitoring apparatus and control method thereof - Google Patents

Abstract

The present invention relates to an apparatus and method for monitoring underground buried pipes, excavating them, and detecting geothermal changes. The control method of the underground monitoring device according to the present invention includes sensing information generated by a vibration sensor that detects external vibration, sensing information generated by an impact detection sensor that detects an impact of a certain intensity or more, and a temperature sensor that detects the surrounding temperature. Receiving at least one of the sensing information generated by; determining whether there is a risk to the underground pipe based on the sensing information received in the above step; If the underground pipe is in a dangerous state as a result of the determination in the above step, a notification signal is generated and transmitted to the outside.

Description

Underground monitoring device and its control method {UNDERGROUND PIPE STATE MONITORING APPARATUS AND CONTROL METHOD THEREOF}

The present invention relates to an underground monitoring device and a control method thereof, and more specifically, to a device for monitoring the occurrence of risk factors in buried pipes buried in roads, asphalt, dirt floors, etc., and a control method thereof.

There may be important lines or structures buried underground, such as heating pipes, light lines, and piping, so there is an obligation to report to the relevant organizations when excavating.

However, if the work is not done by a professional contractor, or even if the work is done by a professional contractor, omission of reporting may occur, and in this case, damage to various important facilities installed underground may occur.

Therefore, it is necessary to introduce a device that independently determines the excavation work and informs the outside world. In the past, whether or not to excavate was determined by detecting the vibration waveform generated during the excavation work.

However, since the vibration waveform alone does not provide an accurate judgment on whether or not to excavate, there are frequent cases where excavation status notifications are issued even though no actual excavation work is occurring.

In addition, the conditions for determining the occurrence of excavation may vary depending on whether the road is paved, but in the past, the value once set is fixed, so there is a problem that appropriate response is not made when the road pavement condition changes.

Furthermore, there are cases where cracks occur in underground pipes and hot water leaks. If left untreated, this can lead to a bigger accident, so it is necessary to detect it quickly and accurately. However, in the past, such hot water leaks were not properly detected, so prompt treatment was required. It is a setting that cannot be supported.

Publication Patent No. 10-2013-0016890

The present invention was developed to solve the above-described conventional problems, and its purpose is to provide an underground monitoring device and a control method for quickly and accurately determining the state of excavation or hot water leakage.

In order to achieve the above object, the underground monitoring device according to the present invention includes sensing information generated by a vibration sensor that detects external vibration, sensing information generated by a shock detection sensor that detects an impact of a certain intensity or more, and ambient temperature. a sensing information determination unit that receives at least one piece of sensing information generated by a sensing temperature sensor and determines a result value corresponding to the sensing information; an underground pipe risk state determination unit that determines whether there is a risk to the underground pipe based on a result value corresponding to the sensing information determined by the sensing information determination unit; It is configured to include a notification signal transmitting unit that generates a notification signal and transmits it to the outside when the underground pipe dangerous state determination unit determines that the underground pipe is in a dangerous state.

In addition, in order to achieve the above object, the control method of the underground monitoring device according to the present invention includes sensing information generated by a vibration sensor that detects external vibration, and sensing generated by an impact detection sensor that detects an impact of a certain intensity or more. receiving at least one of information and sensing information generated by a temperature sensor that detects ambient temperature; determining whether there is a risk to the underground pipe based on the sensing information received in the above step; If the underground pipe is in a dangerous state as a result of the determination in the above step, a notification signal is generated and transmitted to the outside.

As described above, according to the present invention, by accurately determining the state of excavation or hot water leakage near an underground pipe, not only can a prompt notification be issued, but also the sounding of false warning alarms can be minimized.

In particular, by automatically setting the excavation judgment conditions, it is possible to accurately determine the excavation status by road condition (pavement condition, etc.), and by providing information related to underground temperature by period and location, the status of hot water leakage can be more accurately determined at any point in time. can do.

1 is a schematic configuration diagram of the entire system including an underground monitoring device according to an embodiment of the present invention;
Figure 2 is a functional block diagram of the underground monitoring device of Figure 1,
Figure 3 is a diagram showing an example of a vibration pattern determined by the vibration waveform determination unit of Figure 2;
Figure 4 is a diagram showing an example of the number of impacts determined by the impact number determination unit of Figure 2;
Figure 5 is a diagram showing the tilt occurrence state determined by the tilt determination unit,
Figures 6 and 7 are control flowcharts showing a process in which an underground monitoring device detects an excavation state according to an embodiment of the present invention;
Figure 8 is a diagram showing an example of data on regional temperature by region,
Figure 9 is a diagram showing an example of monthly geothermal temperature change trend,
Figures 10 and 11 are diagrams showing an example of a normal geothermal temperature pattern for each soil type.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Each embodiment according to the present invention below is only an example to aid understanding of the present invention, and the present invention is not limited to these embodiments. In particular, the present invention may be comprised of a combination of at least one of the individual components, individual functions, or individual steps included in each embodiment.

In particular, for convenience, alphabet letters such as '(a)' are included in some claims, but these alphabet letters do not specify the order of each step.

In addition, each signal mentioned below in each embodiment according to the present invention may mean a single signal transmitted through a single connection, etc., but may also mean a series of signal groups transmitted for the purpose of performing a specific function described later. . That is, in each embodiment, a plurality of signals transmitted at predetermined time intervals or after receiving a response signal from the other device can be expressed as one signal name for convenience.

The schematic configuration of the entire system including the underground monitoring device 100 according to an embodiment of the present invention is as shown in FIG. 1.

As shown in the drawing, the underground monitoring device 100 is buried in the ground. For example, as shown in FIG. 1, the upper end may be positioned near the ground surface.

The underground monitoring device 100 detects when excavation occurs in the area where the device is buried and performs a function of transmitting a notification signal to the outside. A more detailed description of this will be described later with reference to FIG. 2.

Meanwhile, the underground pipe risk warning server 200 receives the notification signal transmitted by the underground monitoring device 100 and performs a function of generating a warning through its own notification means.

For example, the underground pipe risk warning server 200 may output the excavation status through sound, display a warning message on the display, or generate and transmit a warning message to a preset phone number.

The technology itself, which outputs a warning sound/message or notifies an administrator, etc. through various communication means when a specific event (e.g., a warning situation) occurs, is a known technology, so detailed description will be omitted.

Figure 2 shows an example of a specific functional block of the underground monitoring device 100.

As shown in the drawing, the underground monitoring device 100 includes a sensing information determination unit 110, an underground pipe risk status determination unit 120, a notification signal transmission unit 130, and a storage unit 140. It can be.

Here, the sensing information determination unit 110 includes sensing information generated by a vibration sensor that detects external vibration, sensing information generated by a shock detection sensor that detects an impact of a certain intensity or more, and a tilt sensor that detects a tilt. It performs a function of receiving at least one of the received sensing information and the sensing information generated by a temperature sensor that detects the surrounding temperature and determining a result value corresponding to the corresponding sensing information.

Specifically, the sensing information determination unit 110 may be configured to include a vibration waveform determination unit 111, an impact count determination unit 112, a tilt count determination unit 113, and a temperature change determination unit 114. A more detailed description of each of these functions will be provided later.

The underground pipe risk status determination unit 120 performs a function of determining whether the underground pipe is dangerous based on a result value corresponding to the sensing information determined by the sensing information determination unit 110.

For example, the underground pipe risk status determination unit 120 has the function of determining whether excavation has occurred near the underground pipe and whether there is a hot water leak based on the result value corresponding to the sensing information determined by the sensing information determination unit 110. This can be performed, and a more detailed explanation of this will be provided later.

The alarm signal transmitting unit performs the function of generating a notification signal and transmitting it to the outside when the underground pipe is in a dangerous state as a result of the judgment of the underground pipe dangerous state determination unit 120.

The storage unit 140 may store various data, settings, and further applications required for the operation of the underground monitoring device 100.

In particular, the storage unit 140 may store standard conditions for determining excavation or standard values for determining hot water leakage, and a more detailed description of this will be provided later.

Below, a first embodiment will be described in which the notification signal transmitter 130 transmits a notification signal to the outside as the underground pipe dangerous state determination unit 120 determines the excavation state.

To this end, as described above, the functions of the vibration waveform determination unit, the impact count determination unit, and the tilt count determination unit included in the sensing information determination unit 110, and the excavation state determination unit included in the underground pipe risk status determination unit 120 ( 121) functions can be used.

The vibration waveform determination unit 111 performs a function of determining the vibration waveform based on sensing information generated by a vibration sensor that detects external vibration.

For example, when excavation occurs, vibration of the waveform as shown in FIG. 3 may be detected, and the vibration waveform determination unit 111 performs a function of determining the waveform of the detected vibration.

The impact count determination unit 112 performs a function of determining the number of impacts occurring within a preset time based on sensing information generated by a shock detection sensor that detects impacts of a preset intensity or higher.

For example, Figure 4 shows the number of impacts generated during a preset time depending on the time of excavation and the normal time before excavation. As such, the number of impacts determination unit 112 performs the function of determining the number of impacts of a size greater than the preset size. .

The tilt determination unit 113 performs a function of determining the degree of tilt from the initial position for each time period based on sensing information generated by a pre-installed tilt sensor.

For example, in Figure 5, the tilt angle for each time zone determined by the tilt determination unit 113 is displayed for each time zone. As an example, the respective tilts for the X and Y axes are shown.

In particular, Figure 5 shows the slope by time zone as judged by the technology judgment department during excavation and during normal times before excavation.

The excavation state determination unit 121 performs the function of determining whether the excavation state is present by referring to the results determined by the various determination units described above.

For example, the excavation state determination unit 121 determines the excavation state when the vibration waveform determined by the vibration waveform determination unit 111 matches a preset pattern and the number of impacts determined by the impact count determination unit 112 is more than the preset number. It can be judged that

As another example, the excavation status determination unit 121 may determine the excavation status by additionally considering whether the pattern related to the degree of inclination for each time period determined by the inclination determination unit 113 meets preset conditions. Specifically, the excavation state determination unit 121 compares the degree of inclination for each time period determined by the inclination determination unit 113 with the reference angle, and if a preset difference occurs more than a preset number of times during a preset time, it is said to be in an excavation state. You can judge.

For example, if the number of times the X-axis or Y-axis is tilted by more than 5 degrees from the horizontal plane occurs more than 100 times in one minute, the excavation state determination unit 121 may determine that the excavation state is in an excavation state. At this time, of course, the conditions determined by the vibration waveform determination unit 111 and the impact count determination unit 112 described above can also be considered.

In this way, the excavation state determination unit 121 can determine the excavation state based on sensing information generated by various sensors, and can refer to the excavation judgment standard conditions registered in the storage unit 140.

For example, when the first excavation judgment standard condition is registered in the storage unit 140, the excavation state determination unit 121 determines the content determined by the above-described vibration waveform determination unit 111 and the impact count determination unit 112. The excavation state can be determined by considering all of them, and if the second excavation judgment standard condition is registered, the excavation state can be determined by considering only the content determined by the impact count determination unit 112.

Furthermore, if the third excavation judgment standard condition is registered, the excavation status can be determined by considering all the contents determined by the vibration waveform determination unit 111, the impact count determination unit 112, and the slope determination unit 113. there is.

In particular, the excavation state determination unit 121 also performs a function of dynamically changing the excavation state determination reference conditions registered in the storage unit 140.

Specifically, the vibration waveform determined by the vibration waveform determination unit 111 according to the first excavation judgment standard condition registered in the storage unit 140 matches a preset pattern and is determined by the impact count determination unit 112. If the number of impacts is more than a preset number and it is determined to be in an excavation state, a notification signal according to the excavation state may be transmitted from the notification signal transmitter 130. At this time, the excavation state determination unit 121 sets the first excavation judgment standard condition. is changed to the second excavation judgment standard condition, and from the point where the preset period has elapsed, even if the vibration waveform determined by the vibration waveform determination unit 111 does not match the preset pattern, the impact count determination unit 112 determines the If the number of impacts exceeds a preset number, it can be judged to be in an excavation state.

In addition, after changing the excavation state determination unit 121 to the second excavation determination reference condition, if the vibration waveform determined by the vibration waveform determination unit 111 matches the preset pattern, the excavation state determination unit 121 changes the second excavation determination reference condition. It may also be changed to the original first excavation judgment standard condition.

In this way, when changing back to the first excavation judgment standard condition, the excavation status is determined by considering all the results determined by the vibration waveform determination unit 111 and the impact count determination unit 112 as described above. Of course it is.

Changing the excavation judgment criteria in this way takes into account that, for example, the information detected depending on excavation on paved roads and unpaved roads may be different.

In other words, in the case of paved roads, the vibration waveform can be accurately detected due to the increase in pavement density compared to unpaved roads, but in the case of unpaved roads (dirt roads), the same vibration waveforms as in the case of paved roads are detected even if excavation occurs. This may not be possible, and therefore, in a situation where the road pavement has been removed from the paved road, the purpose is to determine whether or not to excavate using only the information determined by the impact count determination unit 112.

In addition, after changing the judgment standard to the second excavation judgment standard condition, the excavation state determination unit 121, as described above, if the vibration waveform determined by the vibration waveform determination unit 111 matches the preset pattern, 2 The excavation judgment standard conditions can be changed to the original first excavation judgment standard conditions.

This means resetting the first excavation judgment standard for detecting the excavation state when the unpaved road state returns to the paved road state.

The structures and types of each sensor described above, such as vibration sensors, impact sensors, and tilt sensors, correspond to known technologies, so detailed descriptions are omitted. However, changes in acceleration and angular velocity are used or magnetic fields are measured. Alternatively, it may be composed of a sensor that uses physical contact, etc.

Meanwhile, the notification signal transmitting unit 130 performs the function of generating a notification signal and transmitting it to the outside when the excavation state determination unit 121 determines that the excavation state is in an excavation state.

Here, the notification signal transmitting unit 130 may unilaterally transmit the notification signal to the surrounding area in the form of a beacon signal, or may transmit the notification signal by communicating with the underground pipe risk warning server 200 as described above.

There are no restrictions on the communication method of the notification signal transmitter 130, and various known technologies can be used.

Hereinafter, the control process of the underground monitoring device 100 according to an embodiment of the present invention will be described with reference to FIGS. 6 and 7.

First, referring to FIG. 6, the process performed in the underground monitoring device 100 when excavation occurs on a paved road will be described.

In explaining this embodiment, it is assumed that the first excavation judgment standard condition for detecting excavation on the paved road is set in the underground monitoring device 100 buried in the paved road (step S1).

Here, the first excavation judgment standard condition considers both the content determined by the vibration waveform determination unit 111 (primary condition) and the content determined by the impact count determination unit 112 (secondary condition) to determine whether or not to excavate. means judging.

When vibration is detected (step S3), the underground monitoring device 100 determines whether the detected vibration waveform matches a preset pattern (step S5).

For example, as shown in FIG. 3, the underground monitoring device 100 may determine that the first condition is satisfied when an attenuation signal of about 9 Hz is detected after an impulse signal is detected due to vibration.

Subsequently, the underground monitoring device 100 detects an impact (step S7), and if the number of impacts occurring during a preset time is greater than the preset number (C1), it may be determined that the secondary condition is satisfied (step S9).

In this way, when both the first and second conditions are satisfied, the underground monitoring device 100 makes a final determination that it is in an excavation state (step S11) and transmits an excavation notification signal (step S13).

Subsequently, the underground monitoring device 100 changes the conditions for excavation judgment to the second excavation judgment standard conditions (step S15).

The time point of changing to the second excavation judgment standard condition may be after a preset period (for example, 10 days) has elapsed after the excavation notification signal is transmitted.

Here, the second excavation judgment standard condition means determining whether or not to excavate by considering only the content (secondary condition) determined by the impact count determination unit 112.

Hereinafter, the control process in a state in which the second excavation judgment standard condition is set will be described with reference to FIG. 7.

The underground monitoring device 100 detects a predetermined vibration (step S21) while the second excavation judgment standard condition is set (step S15), and when the waveform of the detected vibration corresponds to a preset pattern (step S23) The excavation judgment conditions are changed from the first excavation judgment reference conditions to the second excavation judgment reference conditions (step S25).

In other words, it returns to the original state, which is step S1 in FIG. 6.

However, if the vibration is not detected or the waveform of the detected vibration is not a preset pattern, the underground monitoring device 100 checks whether an impact has occurred (step S27).

If the occurrence of an impact is detected (step S27) and the number of impacts occurring during a preset time is greater than the preset number (C1) (step S29), the underground monitoring device 100 determines that it is in the final excavation state (step S31), A notification signal is generated and transmitted externally (step S33).

That is, in a state in which the second excavation judgment standard condition is set, the underground monitoring device 100 determines whether the vibration sensor detects vibration or the vibration waveform determination unit 111 based on the sensing information generated by the vibration sensor. Regardless of the form of the determined vibration waveform, it is possible to determine whether the excavation state is present by only considering whether the number of impacts determined by the impact number determination unit 112 is greater than or equal to a preset number.

The processes of FIGS. 6 and 7 described above are processes that are performed when, for example, excavation initially occurs on a paved road.

For example, when a specific section of a paved road is excavated and constructed, and then the road is paved again, the process of FIG. 6 is followed by steps S21, S23, and S25 of FIG. 7. As another example, , in the case where all of the pavement is removed to create a dirt road, after going through the process of FIG. 6, steps S27 to S33 of FIG. 7 are performed.

Meanwhile, in the above-described embodiment, the results determined by the vibration waveform determination unit 111 or the impact count determination unit 112 are referred to as an example, but for example, as mentioned above, a method using a tilt sensor is performed. It could be.

For example, the third excavation judgment standard condition is a condition for determining the final excavation state using the results determined by the vibration waveform determination unit 111, the impact count determination unit 112, and the slope determination unit 113, The fourth excavation judgment standard condition determines the final excavation state by using the results determined by the impact count judgment unit 112 and the slope determination unit 113, excluding the vibration waveform judgment unit 111, in the third excavation judgment standard condition. Assuming that it is a judgment condition, it is also possible to replace the first excavation judgment standard condition with the third excavation judgment reference condition and the second excavation judgment reference condition with the fourth excavation judgment reference condition in each of the embodiments described above. .

Below, a second embodiment will be described in which the underground pipe dangerous state determination unit 120 determines the hot water leak state and the notification signal transmitting unit 130 transmits a notification signal to the outside.

In describing this embodiment, redundant description of the same content as described in the previous first embodiment may be omitted.

In order to determine the hot water leak status, the function of the temperature change determination unit included in the sensing information determination unit 110 and the function of the hot water leak status determination unit 122 included in the underground pipe dangerous status determination unit 120 as described above. This can be used.

Here, the temperature change determination unit performs a function of determining a temperature change based on sensing information generated by the underground temperature sensor, and the hot water leakage state determination unit 122 determines that the temperature change determined by the temperature change determination unit is determined by a preset standard. If the value is exceeded, it performs the function of determining hot water leakage, which is a risk to underground pipes.

Meanwhile, temperature change trend information by period and region may be registered in the storage unit 140. For reference, FIG. 8 shows an example of geothermal temperature by region, and FIG. 9 shows geothermal temperature change trend by region.

The hot water leak state determination unit 122 determines the hot water leak state when the temperature change determined by the temperature change determination unit deviates from the temperature change trend by preset time and region as shown in FIGS. 8 and 9 by more than a preset range. It can be done.

To this end, the thermal water leak status determination unit 122 may check and process information about the current time or region based on information received from itself or from outside.

In addition, when soil quality information of the pipe burial area is registered in the storage unit 140, the hot water leakage status determination unit 122 determines that the temperature change determined by the temperature change determination unit is based on the soil quality change according to the temperature change trend by preset period and region. If the value that reflects the information deviates from the preset range, it can be judged to be in a state of thermal water leakage.

The pattern of ground temperature change may be different depending on the soil type. For example, as shown in Figures 10 and 11, in the case of the ground under the road, a step-like temperature change pattern appears as shown in Figure 10, and in the ground under the river, a stepwise temperature change pattern appears. In this case, a smooth temperature change pattern appears as shown in FIG. 11, and the hot water leakage state determination unit 122 checks whether the current location is road-type or river-type from pre-stored information, and then determines whether the current location is road-type or river-type. You can decide which one of the patterns to compare with.

When there is a rapid increase in temperature compared to the information stored in the storage unit 140, the hot water leakage state determination unit 122 may determine that hot water leakage has occurred.

When the hot water leakage state is determined in this way, the notification signal transmitting unit 130 can transmit a predetermined notification signal to the outside as described above, so redundant explanation will be omitted.

Meanwhile, in the above-described embodiment, the underground monitoring device is buried underground, and after the underground pipe risk warning server receives a notification signal from the underground monitoring device, it performs the function of generating a warning through its own notification means. This was done as an example.

In other words, the dangerous condition of underground piping itself is made to occur in a device buried in the ground.

However, it goes without saying that the underground pipe risk warning server may make a judgment on the dangerous state of the underground pipe.

In this case, the underground monitoring device transmits periodic sensing information generated by various equipped sensors to the underground pipe risk warning server, and the underground pipe risk warning server determines whether the underground pipe is in a dangerous state based on pre-stored reference values and this sensing information. It is something that can be judged.

In this case, the notification signal described in the above-described embodiment corresponds to a signal delivered to the manager, etc.

Meanwhile, of course, the process of performing each of the above-described embodiments can be performed by a program or application stored in a predetermined recording medium (eg, computer-readable). Here, recording media include electronic recording media such as RAM (Random Access Memory), magnetic recording media such as hard disks, and optical recording media such as CDs (Compact Disk).

At this time, the program stored in the recording medium can be executed on hardware such as a computer or smartphone to perform each of the above-described embodiments. In particular, at least one of the functional blocks of the bark monitor device according to the present invention described above may be implemented by such a program or application.

In addition, the present invention is not limited to the specific embodiments described above, but can be implemented with various changes and modifications without departing from the gist of the present invention. It will be apparent that such changes and modifications are included in the present invention if they fall within the scope of the appended claims.

100: Underground monitoring device 200: Underground pipe risk warning server
110: Sensing information determination unit 120: Underground pipe risk status determination unit
130: Notification signal transmission unit 140: Storage unit
111: Vibration waveform determination unit 112: Impact frequency determination unit
113: slope determination unit 114: temperature change determination unit
121: Excavation status determination unit 122: Hot water leak status determination unit

Claims (20)

delete (a) At least any of the following: sensing information generated by a vibration sensor that detects external vibration, sensing information generated by a shock detection sensor that detects an impact of a certain intensity or more, and sensing information generated by a temperature sensor that detects ambient temperature. receiving one;
(b) determining whether there is a risk to the underground pipe based on the sensing information received in step (a);
(c) generating a notification signal and sending it to the outside if the underground pipe is in a dangerous state as a result of the determination in step (b);
Step (b) includes (b1) determining a vibration waveform based on sensing information generated by a vibration sensor that detects external vibration; (b2) determining the number of impacts that occurred within a preset time based on sensing information generated by an impact detection sensor that detects impacts of a certain intensity or higher; (b3) If the vibration waveform determined in step (b1) matches the preset pattern and the number of impacts determined in step (b2) is more than the preset number, it includes the step of determining the excavation state among the risks to the underground pipe. do;
It further includes the step of storing geothermal temperature change trend information by period and region,
Step (b) includes (b4) determining a temperature change based on sensing information generated by an underground temperature sensor; (b5) If the temperature change determined in step (b4) above deviates from the preset temperature change trend by period and region corresponding to the current period in the current region, it is judged to be a hot water leak among the risks to underground pipes. A method of controlling an underground monitoring device further comprising the following steps. According to paragraph 2,
(e) further comprising the step of registering the first excavation judgment criteria condition,
In step (b3), the vibration waveform determined in step (b1) matches the preset pattern according to the first excavation judgment standard condition registered in step (e), and the number of impacts determined in step (b2) is If it is more than a preset number of times, it is determined to be in an excavation state, but after sending a notification signal according to the excavation state in step (c), the first excavation judgment standard condition is changed to the second excavation judgment standard in step (b1). A control method for an underground monitoring device, characterized in that it is determined to be in an excavation state if the number of impacts determined in step (b2) is more than the preset number, even if the determined vibration waveform does not match the preset pattern. According to paragraph 3,
After changing the second excavation judgment reference condition, if the vibration waveform determined in step (b1) matches the preset pattern, changing the second excavation judgment reference condition to the original first excavation judgment reference condition A method of controlling an underground monitoring device further comprising the following steps. According to paragraph 2,
(f) further comprising determining the degree of tilt from the initial position for each time period based on the sensing information generated by the tilt sensor,
In step (b3), the control of the underground monitoring device is characterized in that the excavation status is determined by additionally considering whether the pattern related to the degree of inclination for each time period determined in step (f) meets preset conditions. method. According to clause 5,
In step (b3), the degree of inclination for each time period determined in step (f) is compared with the reference angle, and if a preset difference occurs more than a preset number of times during a preset time, it is characterized in that it is determined to be in an excavation state. Control method of underground monitoring device. delete delete According to paragraph 2,
Further comprising the step of storing soil quality information of the pipe burial area,
In step (b2), if the temperature change determined in step (b1) deviates from a value that reflects soil information in the temperature change trend by preset period and region by more than a preset range, it is determined to be in a state of hydrothermal water leakage. Control method of monitoring device. A computer-readable recording medium recording a program for executing the method of any one of claims 2 to 6 and 9. An application program stored in a computer-readable recording medium in combination with hardware to execute the method of any one of claims 2 to 6 and claim 9. delete Receives at least one of the following: sensing information generated by a vibration sensor that detects external vibration, sensing information generated by a shock detection sensor that detects shock of a certain intensity or higher, and sensing information generated by a temperature sensor that detects ambient temperature. a sensing information determination unit that determines a result value corresponding to the corresponding sensing information;
an underground pipe risk state determination unit that determines whether there is a risk to the underground pipe based on a result value corresponding to the sensing information determined by the sensing information determination unit;
A notification signal transmitting unit that generates a notification signal and transmits it to the outside when the underground pipe is in a dangerous state as a result of the determination of the underground pipe dangerous state determination unit,
The sensing information determination unit includes a vibration waveform determination unit that determines a vibration waveform based on sensing information generated by a vibration sensor that detects external vibration. It is configured to include a shock count determination unit that counts the number of shocks that occurred within a preset time based on sensing information generated by a shock detection sensor that detects shocks of a certain intensity or higher, and
The underground pipe dangerous state determination unit is an excavation state determination unit that determines the excavation state when the vibration waveform determined by the vibration waveform determination unit matches a preset pattern and the number of impacts determined by the impact number determination unit is more than a preset number. It consists of:
It further includes a storage unit in which geothermal temperature change trend information by period and region is registered,
The sensing information determination unit further includes a temperature change determination unit that determines a temperature change based on sensing information generated by an underground temperature sensor,
The underground pipe risk state determination unit determines a hot water leak state as a hot water leak state among the risks to the underground pipe when the temperature change determined by the temperature change determination unit deviates from the preset temperature change trend for each period and region by more than a preset range. An underground monitoring device, characterized in that it further includes a determination unit. According to clause 13,
It further includes a storage unit in which the first excavation judgment standard condition is registered,
The excavation state determination unit determines that the vibration waveform determined by the vibration waveform determination unit matches a preset pattern according to the first excavation judgment standard condition registered in the storage unit, and the number of impacts determined by the impact number determination unit is more than a preset number. In this case, it is determined that it is in an excavation state, but after the notification signal transmitter transmits a notification signal according to the excavation state, the first excavation judgment reference condition is changed to the second excavation judgment reference condition, and the vibration determined by the vibration waveform determination section is changed. An underground monitoring device characterized in that it is determined to be in an excavation state if the number of impacts determined by the impact number determination unit is greater than or equal to a preset number, even if the waveform does not match the preset pattern. According to clause 14,
After changing to the second excavation judgment reference condition, the excavation state determination unit changes the second excavation judgment reference condition to the original first excavation determination when the vibration waveform determined by the vibration waveform determination unit matches a preset pattern. An underground monitoring device characterized by changing to reference conditions. According to clause 13,
The sensing information determination unit further includes a tilt determination unit that determines the degree of inclination from the initial position for each time period based on sensing information generated by a pre-installed tilt sensor,
The excavation state determination unit determines the excavation status by additionally considering whether the pattern related to the degree of inclination for each time period determined by the inclination determination unit meets preset conditions. According to clause 16,
The excavation state determination unit compares the degree of inclination for each time period determined by the inclination determination unit with the reference angle and determines that the excavation state is present when the difference is more than a preset number of times during a preset time. Device. delete delete According to clause 13,
In the storage unit, information on the soil quality of the pipe burial area is registered,
The thermal water leakage state determination unit determines the thermal water leakage state when the temperature change determined by the temperature change determination unit deviates from a preset range or more from a value that reflects soil quality information in the temperature change trend by preset period and region. Monitoring device.