Seismic determination analysis system based on overhead pole network of distribution line

Abstract

The present application relates to a utility pole network system for determining a position where an earthquake anomaly occurs, including: a plurality of utility poles buried in an upright direction in a manner spaced apart from the ground and supporting a power distribution line; a plurality of sensors provided in each of the utility poles to sense displacement and acceleration of each of the utility poles; a communication unit communicating with the plurality of sensors to receive sensed values from each of the sensors; and a control unit determining whether to display an earthquake anomaly pattern including a P-wave vibration pattern and an S-wave vibration pattern in a case where no sensed value is received from each of the utility poles through the communication unit, the P-wave vibration pattern vibrating in the upright direction in a predetermined first frequency range, the S-wave vibration pattern vibrating in a lateral direction with respect to the upright direction in a second frequency range lower than the first frequency range immediately after the P-wave vibration pattern, and determining a position where an earthquake anomaly occurs in the plurality of utility poles based on a positional correlation between the utility poles sensed in the case where no sensed value is present.

Description

Technical Field

[0001] This invention relates to a utility pole network system for identifying and analyzing earthquake anomalies by connecting multiple utility poles via communication. Background Technology

[0002] Current earthquake detection systems rely on seismometers installed at seismic stations. However, these stations are primarily located in large cities or around major research facilities, making effective monitoring of vast areas such as rural areas, mountainous regions, and coastal areas difficult. Furthermore, existing systems are sensitive to high-magnitude earthquakes but often fail to detect relatively low-magnitude earthquakes. Additionally, seismometers themselves are very expensive and cannot cover large areas. Therefore, a solution is needed that allows earthquake anomaly detection to be widely applied to various regions at a lower cost. Summary of the Invention

[0003] The present invention was proposed in view of the above-mentioned problems, and aims to provide a utility pole network system that utilizes widely distributed utility poles to easily identify seismic anomalies in a simple manner.

[0004] To achieve the above objective, a utility pole network system for determining the location of an earthquake anomaly according to an embodiment of the present invention includes: a plurality of utility poles, vertically embedded and supporting power distribution lines in a manner separated from each other from the ground; a plurality of sensors disposed on each of the plurality of utility poles, and sensing the displacement and acceleration of each utility pole; a communication unit, communicating with the plurality of sensors and receiving sensing values ​​from each of the sensors; and a control unit, in the absence of sensing values ​​received from the utility poles via the communication unit, determining whether an earthquake anomaly pattern including a P-wave vibration pattern and an S-wave vibration pattern is displayed, wherein the P-wave vibration pattern vibrates in the vertical direction within a predetermined first frequency range, and the S-wave vibration pattern follows the P-wave vibration pattern in the lateral direction relative to the vertical direction within a second frequency range lower than the first frequency range, and determining the location of the earthquake anomaly among the locations of the plurality of utility poles based on the positional correlation between the utility poles sensed in the absence of the sensing values.

[0005] The location correlation may include the density of the locations of the utility poles displaying the earthquake pattern, and the control unit may identify regions exceeding a density threshold from among a predefined plurality of regions as regions where earthquake anomalies have occurred. This density allows for clearer identification of earthquake anomalies across multiple regions.

[0006] The control unit can calculate an estimated epicentral distance as the distance from each of the three or more utility poles identified as indicative of the earthquake anomaly pattern to the epicenter, and determine the coordinates of the intersection of a circle centered at each of the identified poles with a radius equal to the calculated epicentral distance as the epicenter location. Thus, using the sensing values ​​corresponding to multiple utility poles, the coordinates of the epicenter can be easily determined.

[0007] According to the present invention, the utility pole network system can easily determine the location of utility poles experiencing seismic anomalies in a simple way and at a low cost, and can make appropriate responses. Attached Figure Description

[0008] Figure 1 This is an example diagram of a utility pole network system according to an embodiment of the present invention.

[0009] Figure 2 This is an example diagram illustrating the vibration pattern of a utility pole in a utility pole network system according to an embodiment of the present invention.

[0010] Figure 3 This is a plan view illustrating the principle of identifying utility poles with seismic anomalies in a utility pole network system according to an embodiment of the present invention.

[0011] Figure 4 This is an example diagram illustrating the density differences in various regions of a utility pole network system according to an embodiment of the present invention.

[0012] Figure 5 This is a plan view illustrating the principle of determining the epicenter location among multiple utility poles in a utility pole network system according to an embodiment of the present invention.

[0013] Figure 6 It is a table that schematically compares the criteria used to determine each anomaly in a utility pole network system according to an embodiment of the present invention.

[0014] Figure 7 This is an example diagram illustrating the principle of adjusting the tension of each branch line in a utility pole network system according to an embodiment of the present invention.

[0015] Figure 8 This is a schematic diagram illustrating the damping behavior and tilt maintenance behavior in a utility pole network system according to an embodiment of the present invention.

[0016] Figure 9 This is a plan view illustrating the relationship between the branch support direction and the pole tilt direction in a utility pole network system according to an embodiment of the present invention.

[0017] Figure 10 This is a plan view illustrating the movement of the tension control unit in a utility pole network system according to an embodiment of the present invention. Detailed Implementation

[0018] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of a utility pole network system according to an embodiment of the present invention.

[0020] like Figure 1 As shown, a utility pole network system 1 according to an embodiment of the present invention includes a plurality of utility poles 200 spaced apart from each other and buried vertically in the ground to support power distribution lines 100. The utility poles 200 support the power distribution lines 100 by suspending them in the air (at least several meters above the ground) to prevent human access to the power distribution lines 100 through which high-voltage electricity passes. The distance between two adjacent utility poles 200 can be determined by a variety of factors, including but not limited to the diameter of the supported power distribution lines 100, the amount of electricity transmitted by the power distribution lines 100, the load and tension on the power distribution lines 100, the material of the utility poles 200, and the environment in which the utility poles 200 are installed. For example, in urban areas, the distance between two utility poles 200 may be approximately 30 to 40 meters, while in rural areas it may be approximately 40 to 50 meters, because rural areas have more space and fewer obstacles compared to urban areas.

[0021] The utility pole 200 includes a pole body 210, which is a structure with its lower end buried or supported underground, and its upper end erected to support the power distribution line 100. Depending on the application, the pole body 210 can be made of materials such as reinforced concrete (strong, durable, and corrosion-resistant, widely used in general power distribution lines), steel (very strong, capable of withstanding high voltage, used when ultra-high voltage transmission is required, and coated with special coatings such as galvanization to prevent corrosion), or synthetic resin (lightweight and non-corrosive, used in highly corrosive environments such as coastal areas, wetlands, and areas requiring environmentally friendly design). The height of the utility pole 200 can be determined by the voltage, installation area, and load; for example, low-voltage distribution (220 to 380 volts) can be 7 to 12 meters, and high-voltage distribution (3.3 to 22.9 kV) can be 12 to 18 meters. The cross-section of the utility pole 200 can be circular, rectangular, or polygonal.

[0022] The utility pole 200 includes a buffer 220, which is a structure installed on top of the pole body 210 to support the power distribution lines 100. The buffer 220 maintains the spacing between the power distribution lines 100, thereby reducing the risk of electric shock and improving power transmission efficiency. The buffer 220 also maintains the stability of the utility pole 200 by dispersing the tension of the power distribution lines 100 and the load from the external environment (wind, snow, ice, etc.). As shown in this embodiment, the buffer 220 can be a straight structure extending laterally from the pole body 210, or it can adopt various other shapes depending on the application, such as a V-shaped structure (for wider spacing of the power distribution lines 100 and stability in windy areas). The utility pole 220 can be made of various materials, such as steel, aluminum, composite resin, etc.

[0023] The utility pole 200 includes an insulator 230 that serves as insulation between the distribution line 100 and the pole 200. The insulator 230 can withstand the weight of the distribution line 100 and external loads, and minimizes corona discharge and leakage current that may occur under high voltage. Due to the need for insulation, the insulator 230 can be made of ceramic (such as porcelain, glass, or similar materials), synthetic resin, or similar materials. The insulator 230 can have various structures, such as needle insulators (installed on top of the buffer metal 220 for voltages below 22.9 kV), suspension insulators (used in high-voltage transmission lines, where multiple insulators are connected in series to increase insulation strength), strain gauge insulators (used at sharp bends and terminals of lines, designed to withstand the tensile force of the distribution line 100), and support insulators (post insulators) (installed vertically, possessing high mechanical strength, used in switchgear, substation equipment, etc.).

[0024] The utility pole 200 includes a lightning conductor 240 to protect the distribution line 100 from lightning strikes. The lightning conductor 240 prevents lightning from striking the distribution line 100 directly or components such as transformers installed below the distribution line 100. For this purpose, the lightning conductor 240 is installed above the distribution line 100 (e.g., between the top of the utility pole 200 and the top of an adjacent utility pole 200), thus guiding lightning to preferentially strike the lightning conductor 240. The lightning conductor 240 is connected to the ground and is designed to safely discharge lightning current to the ground. Therefore, the lightning conductor 240 prevents overvoltages caused by lightning strikes, thereby protecting power transmission and distribution equipment such as transformers, and ensuring that no instantaneous high voltage generated by lightning strikes is induced in the distribution line 100. For example, the lightning conductor 240 can be Zn-coated steel wire or aluminized steel wire (AL-Zn steel wire).

[0025] The utility pole 200 includes a branch line 250 that supports the pole body 210 relative to the ground. The branch line 250 connects to both the top of the pole body 210 and the ground, thus enabling the pole body 210 to withstand tensile forces on the other side. The pole body 210 may tilt due to wind, the tension of the power line 100, or other external loads; the branch line 250 stabilizes the pole body 210 against these tilting forces and distributes the load of the power line 100, preventing it from concentrating on the pole body 210. The branch line 250 may be a galvanized steel wire with a diameter of 6 to 10 mm, but its diameter or material is not limited.

[0026] The utility pole network system 1 according to this embodiment includes multiple sensors 300, each sensor 300 being mounted on multiple utility poles 200 and sensing the displacement and acceleration of each utility pole 200. When a utility pole 200 vibrates due to ground vibration, the vibration direction (e.g., the vertical direction of the pole body 210 or transverse to that vertical direction) and vibration frequency of the utility pole 200 can be calculated based on the displacement and acceleration of the utility pole 200 measured by the sensors 300. For this purpose, each sensor 300 includes a displacement sensor and an acceleration sensor. The displacement sensor can be a laser displacement sensor utilizing laser beam reflection, an electromagnetic induction linear variable differential transformer (LVDT), an optical displacement sensor, etc. The acceleration sensor includes MEMS (microelectromechanical systems), piezoelectric, force-balanced, magnetic induction, etc. The position of the sensor 300 on the utility pole 200 is not limited, but it can be installed at a location where changes in the displacement and acceleration of the utility pole 200 are more easily detected, such as on the upper part of the utility pole body 210.

[0027] The utility pole network system 1 includes a communication unit 400 that communicates with multiple sensors 300 and receives sensing values ​​from each sensor 300. For example, the multiple sensors 300 can be connected to the Internet individually via wired, wireless, or a combination of wired and wireless means, and the communication unit 400 can receive sensing values ​​from each sensor 300 via the Internet. However, the connection method between the communication unit 400 and the multiple sensors 300 is not necessarily limited to the Internet; it can also be a network independent of the Internet.

[0028] The utility pole network system 1 includes a control unit 500 for determining the abnormal condition of each utility pole 200 based on the sensing values ​​of multiple sensors 300. The control unit 500 can be a hardware circuit composed of a central processing unit, processor, microcontroller, chipset, wiring, printed circuit board, etc. Alternatively, the control unit 500 can also be a computer unit, for example, a computer unit located away from the multiple utility poles 200.

[0029] The following describes how a utility pole network system 1, according to an embodiment of the present disclosure, determines which utility pole 200 has experienced an earthquake anomaly.

[0030] Figure 2 This is an example diagram illustrating the vibration modes of a utility pole in a utility pole network system according to an embodiment of the present invention.

[0031] like Figure 1 and Figure 2 As shown, according to one embodiment of the present invention, the control unit 500 identifies utility poles 200 displaying an earthquake anomaly patterns among a plurality of utility poles 200 by determining whether the sensing values ​​received from each sensor 300 via the communication unit 400 indicate a predefined earthquake anomaly pattern. Based on the positional correlation between the identified utility poles 200, the control unit 500 determines the location of the plurality of utility poles 200 where earthquake anomalies have occurred. The control unit 500 can then execute predetermined countermeasures based on the determined location.

[0032] The seismic anomaly modes include the P-wave vibration mode and the subsequent S-wave vibration mode, depending specifically on the vibration direction and frequency of rod 200. The P-wave vibration mode ( Figure 2 (a) is a mode of vibration in an upright direction (e.g., vertical direction) within a predetermined first frequency range. S-wave vibration mode ( Figure 2 (b) is a pattern of vibration in the lateral direction (e.g., horizontal direction) relative to the vertical direction, with a predetermined second frequency range lower than the first frequency range. An earthquake anomaly pattern is a pattern in which an S-wave vibration pattern appears within a predetermined time after the appearance of a P-wave vibration pattern. The control unit 500 can identify earthquake anomaly patterns from the sensed values ​​in various ways. For example, if the sensor 300 measures acceleration data on the X, Y, and Z axes respectively, the control unit 500 will determine that the magnetic pole 200 is vibrating in the direction representing the highest value among the three acceleration data.

[0033] The first and second frequency ranges are ranges that can be determined by various factors such as the environment, and therefore are not limited to specific numerical ranges; the second frequency range is simply lower than the first frequency range. For example, the first frequency range could be 5 to 15 Hz, and the second frequency range could be 1 to 5 Hz.

[0034] The control unit 500 identifies a utility pole 200 among a plurality of utility poles 200 that displays an anomaly pattern. Among the utility poles 200 identified as displaying an anomaly pattern, the control unit 500 determines the location of the utility pole 200 where the anomaly occurred based on the positional correlation between the identified utility poles 200.

[0035] Figure 3 This is a top view illustrating the principle of a utility pole network system according to an embodiment of the present invention for determining which utility pole has experienced an earthquake anomaly.

[0036] like Figure 3 As shown in (a), the path of the power distribution line 100 includes multiple utility poles 200, namely A1, A2, A3, A4, A5, and A6. In the figure, each circular node represents a utility pole 200. The utility pole 200 adjacent to A2 connects to A1 and A3, the utility pole 200 adjacent to A3 connects to A2 and A4, the utility pole 200 adjacent to A4 connects to A3 and A5, the utility pole 200 adjacent to A5 connects to A4 and A6, and so on.

[0037] like Figure 3 (b) Consider the case where seismic anomaly patterns appear at A1, A2, A3, and A4 among multiple magnetic poles 200. Since seismic anomalies generally occur simultaneously within a certain area of ​​a predetermined region, seismic anomaly patterns can be observed on all poles 200 within the area of ​​multiple poles 200. In this case, poles 200 adjacent to the pole displaying the seismic anomaly pattern are likely to display the same seismic anomaly pattern. For example, A1 and A3 adjacent to A2 display the same seismic anomaly pattern, and A2 and A4 adjacent to A3 display the same seismic anomaly pattern. In the case of A4, among the adjacent A3 and A5, A5 does not exhibit a seismic anomaly pattern, but A3 does. Thus, if the ratio of seismic anomaly patterns appearing among adjacent poles 200 to each pole 200 exhibiting a seismic anomaly pattern is higher than a predetermined threshold, the control unit 500 determines that a seismic anomaly has occurred at the location of the aforementioned pole 200.

[0038] On the other hand, such as Figure 3 As shown in (c), consider the case where seismic anomaly patterns appear on poles A2 and A5 among multiple utility poles 200. In the case of A2, the seismic anomaly pattern will not appear on adjacent poles A1 and A3, while in the case of A5, the seismic anomaly pattern will not appear on adjacent poles A4 and A6. If the seismic anomaly is not caused by a seismic anomaly, but by a local cause such as a traffic accident, lightning strike, or gust of wind, then even if utility poles 200 display seismic anomaly patterns, the utility poles 200 will not be clustered together, but distributed. Therefore, if the proportion of adjacent utility poles 200 displaying seismic anomaly patterns is not higher than the aforementioned threshold, the control unit 500 determines that the seismic anomaly does not occur at the location of the utility pole 200, but is caused by a cause other than a seismic anomaly.

[0039] Therefore, according to this embodiment, earthquake anomalies can be more accurately determined by further considering the positional correlation between multiple abnormal utility poles 200, rather than simply determining earthquake anomalies based on anomalies detected on a single utility pole 200.

[0040] Figure 4This is an example diagram illustrating the difference in pole density displaying anomaly patterns in a pole network system according to an embodiment of the present invention.

[0041] like Figure 4 As shown, according to one design scheme, the control unit 500 can determine whether an earthquake anomaly has occurred in a certain area based on the cluster density of utility poles 200 displaying earthquake anomaly patterns in one of a plurality of predefined areas (e.g., administrative areas). Here, the cluster density can be defined as the number of utility poles 200 displaying earthquake anomaly patterns per unit area, where D=N / A (D: cluster density, N: number of utility poles 200 displaying earthquake anomaly patterns, A: area of ​​the target area).

[0042] For example, the control unit 500 determines whether the number of utility poles 200 displaying an anomaly pattern within a region exceeds a predetermined first threshold, or whether the proportion of utility poles 200 displaying an anomaly pattern among all utility poles 200 within the region exceeds a predetermined second threshold. If the number exceeds the first threshold or the proportion exceeds the second threshold, the control unit 500 divides the number of utility poles 200 displaying anomaly patterns by the area of ​​the region to calculate the density corresponding to that region. The higher the density, the greater the likelihood of an anomaly. If the density exceeds a predetermined third threshold, the control unit 500 determines that an anomaly has occurred within the region; if the density does not exceed the third threshold, it determines that no anomaly has occurred within the region.

[0043] As an example, Figure 4 Both (a) and (b) illustrate the case where seismic anomaly patterns are detected on the same seven utility poles 200. Therefore, in D=N / A, N is the same as 7 in both cases. On the other hand, the area Aa including the utility poles 200 displaying the seismic anomaly pattern in case (a) is smaller than the area Ab including the utility poles 200 displaying the seismic anomaly pattern in case (b). Therefore, even if the number of utility poles 200 displaying the seismic anomaly pattern is the same, the density in case (a) is greater than the density in case (b), and the probability of seismic anomalies occurring in case (a) is relatively higher.

[0044] On the other hand, depending on the design method, the concepts of diffusion or dispersion can also be used. Dispersion is an indicator that shows the degree of dispersion of the poles 200 of the seismic anomaly pattern, and can be measured by the standard deviation of the distance of each pole 200 from the mean center point.

[0045] [Equation 1]

[0046] A lower diffusion rate indicates a more concentrated concentration of the identified poles 200, in which case the likelihood of an earthquake anomaly is greater. Conversely, a higher diffusion rate indicates a wider distribution of the identified poles 200, in which case an earthquake anomaly is unlikely. Based on these principles, the control unit 500 can determine whether an earthquake anomaly exists in a specific area.

[0047] Alternatively, a more accurate judgment can be made by simultaneously applying the density and diffusion rates described above. After identifying the utility pole 200 displaying an anomaly pattern, the control unit 500 calculates the density and diffusion rate based on the identified utility pole 200. If the density is relatively high and the diffusion rate is relatively low, the control unit 500 determines that this is an anomaly. If the density is relatively low and the diffusion rate is relatively high, the control unit 500 determines that the anomaly is not an anomaly, but rather a vibration anomaly caused by natural causes such as strong winds or lightning strikes. If both the density and diffusion rate are relatively high, the anomaly point was detected without a constant center point, and therefore is likely caused by human factors such as large-scale construction. In this case, the control unit 500 can determine that the anomaly point is not an anomaly point, but rather an anomaly point caused by human factors.

[0048] On the other hand, the epicenter coordinates can be determined based on the locations of multiple poles 200 of the detected seismic anomaly pattern. These embodiments will be described below.

[0049] Figure 5 This is a plan view illustrating the principle of determining the epicenter location based on multiple poles in a utility pole network system according to an embodiment of the present invention.

[0050] like Figure 1 and Figure 5 As shown, the control unit 500 calculates the epicentral distance based on the time difference between when the P-wave vibration mode appears at each utility pole 200 and when the S-wave vibration mode appears at each utility pole 200, estimating it as the distance from each utility pole 200 to the epicenter. When a circle is drawn with this epicentral distance as the radius and the position of each utility pole 200 as the center, the control unit 500 determines that the intersection of the multiple circles is the epicentral location. To accurately deduce the epicentral location, a circle should be drawn around at least three utility poles 200.

[0051] For example, given utility poles 200B1, B2, and B3, for each pole 200, the time between the detection of the P-wave vibration mode and the detection of the S-wave vibration mode can be derived (i.e., the time difference between the arrival of the P-wave and S-wave at pole 200). Based on these derived times, the estimated epicentral distance, i.e., the distance from each utility pole 200 to the epicenter, can be calculated. The calculation method can be based on the following mathematical formula.

[0052] [Equation 2]

[0053] For example, if ΔT1 = 4 seconds for pole B1, then D1 = 20 km; if ΔT2 = 5 seconds for pole B2, then D2 = 25 km; and if ΔT3 = 3 seconds for pole B3, then D3 = 15 km. If we draw a circle with radius D1 centered on the coordinates of pole 200B1, a circle with radius D2 centered on the coordinates of pole 200B2, and a circle with radius D3 centered on the coordinates of pole 200B3, the result would be as follows... Figure 5 As shown. The control unit 500 determines the coordinates of point C1, where the three circles overlap, as the epicenter.

[0054] Here, the epicenter can be accurately determined for at least three poles 200, for the following reasons. For example, if two circles are drawn using two utility poles 200B1 and B2, the intersection points of these circles are C1 and C2. Using only two utility poles 200, it is impossible to determine which of C1 and C2 is the epicenter. Therefore, if three circles are drawn using at least three utility poles 200 by adding a utility pole 200B3, then an intersection point C1 can be determined.

[0055] However, if the number of target utility poles 200 for determining the epicenter is greater than three, errors may occur when calculating the distance D of each pole 200, resulting in multiple intersection points instead of a single intersection point where multiple circles intersect geometrically. In this case, the control unit 500 determines the epicenter point as the intersection point of the largest number of circles. For example, when eight circles are drawn for eight utility poles 200, there may be intersection points where five circles intersect and intersection points where three circles intersect. In this case, since the number of circles is relatively large, the intersection point where five circles intersect can be determined as the epicenter.

[0056] On the other hand, based on the design methodology, an implementation method for detecting abnormal ground settlement can also be adopted using the utility pole network system 1. Such an embodiment will be described below.

[0057] Figure 6 It is a table that schematically compares the criteria for various anomalies determined by a utility pole network system according to an embodiment of the present invention.

[0058] like Figure 1 and Figure 6 As shown, multiple sensors 300 can detect the displacement, tilt, and acceleration of each utility pole 200. The sensors 300 include a tilt sensor for measuring the tilt of the pole body 210, as well as a displacement sensor and an acceleration sensor, as described in the previous embodiments.

[0059] According to this embodiment, the control unit 500 determines whether the sensor values ​​received from each utility pole 200 via the communication unit 400 indicate a predefined ground subsidence anomaly, and determines the location of the utility pole 200 where the ground subsidence anomaly occurs based on the positional correlation between the utility poles 200 identified as indicating ground subsidence anomalies. Ground subsidence anomalies include vibration anomalies and tilt anomalies.

[0060] Vibration anomalies refer to the detection of vibrations in an ultra-low frequency range within a predetermined time period. Here, the infrasound range refers to a range of 0.1 Hz or less. This is related to the minute vibration characteristics generated when soil is compressed or cracked during ground subsidence anomalies. The vibrations in vibration anomalies occur within the infrasound frequency range, lower than the vibration frequency range in the seismic anomaly mode of the previous embodiment. Furthermore, the vibrations in the seismic anomaly mode of the previous embodiment occur over a relatively short period of time, from a few seconds to tens of minutes, while the vibrations in vibration anomalies persist for a relatively long period of time, from at least several hours to several weeks. In other words, vibration anomalies have a lower frequency range and a longer duration than seismic anomaly modes.

[0061] An anomaly in tilt indicates that the tilt of the utility pole 200 exceeds a preset normal angle range. For example, if the tilt of the utility pole 200 along its vertical direction is 0 degrees, the normal angle range can be between -M degrees and +M degrees relative to 0 degrees. M is a natural number, and the specific number can be determined based on various environmental factors. The seismic anomaly pattern in the previous embodiment is characterized by repeated oscillations along the horizontal or vertical direction, while the tilt anomaly is characterized by a continuous increase in tilt in one direction due to abnormal ground subsidence. Similarly, the displacement change in the seismic anomaly pattern of the previous embodiment is a repeated oscillation, for example, from a few millimeters to a few centimeters, while the displacement change in the vibration anomaly is a continuous change along a specific direction.

[0062] Based on this principle, the control unit 500 can determine which of the multiple utility poles 200 corresponds to the sensing value indicating abnormal ground settlement. Based on the positional correlation between the utility poles 200 determined to indicate abnormal ground settlement, the control unit 500 determines the location of the abnormal ground settlement among the utility poles 200.

[0063] In determining the location of a ground subsidence anomaly at a pole 200 identified as an indication of an anomaly, the specific method for determining the location of the anomaly can be adjusted from the previous embodiment for determining the location of a pole 200 where an earthquake anomaly occurred. For example, if the ratio of poles 200 exhibiting ground subsidence anomalies adjacent to each pole 200 exhibiting anomalies is greater than a predetermined threshold, the control unit 500 determines that a ground subsidence anomaly occurs at the location of the pole 200. Conversely, if the rate of ground subsidence anomalies at poles 200 adjacent to each pole 200 exhibiting anomalies is not higher than a predetermined threshold, the control unit 500 determines that the ground subsidence anomaly does not occur at the location of the pole 200 and is caused by a reason other than ground subsidence anomalies. For specific methods, please refer to [reference needed]. Figure 2 The embodiments described herein will not be described in detail. Here, the control unit 500 may include a learnable artificial intelligence model that can learn to determine earthquake anomalies or ground subsidence anomalies based on accumulated historical judgment records.

[0064] Therefore, in this embodiment, instead of simply judging ground subsidence anomalies based on anomalies detected by a single utility pole 200, ground subsidence anomalies are judged more accurately by further considering the positional correlation between anomalies displayed by multiple utility poles 200.

[0065] Furthermore, when the control unit 500 determines whether an anomaly, either ground subsidence or seismic anomaly, has occurred at the location of each utility pole 200, the control unit 500 can provide guidance information regarding the determination result in various ways through a designated output (e.g., a display, a communication unit 400, etc.). For example, the control unit 500 can display the determination result on a display connected to the control unit 500, or transmit it to a designated electronic device via the communication unit 400.

[0066] According to the design scheme, the utility pole network system 1 can adjust the tension of the branch lines 250 supporting each utility pole 200 based on either a determined seismic anomaly or a ground subsidence anomaly. These embodiments will be described below.

[0067] Figure 7 This is an example diagram illustrating the principle of adjusting the tension of each branch line in a utility pole network system according to an embodiment of the present invention.

[0068] Figure 8 This is a schematic diagram of the impact absorption behavior and tilt retention behavior in a utility pole network system according to an embodiment of the present invention.

[0069] like Figure 7 and Figure 8As shown, a utility pole network system 1 according to an embodiment of the present invention includes a plurality of branch lines 250 supporting each of a plurality of utility poles 200 to maintain the upright position of each of the plurality of utility poles 200, and a tensioning portion 600 installed on each of the plurality of branch lines 250 to adjust the tension of each branch line 250. Each branch line 250 is set with an initial tension direction, for example, in the direction of pulling the utility pole 200.

[0070] The tensioner 600, under the control of the control unit 500, can increase or decrease the tension of the branch line 250 by means of driving force. If the control unit 500 is a certain distance away from the utility pole 200, the control unit 500 can send a control signal to the tension control unit 600 via the communication unit 400. The installation location of the tension control unit 600 can vary, for example, at the midpoint of the branch line 250, on the ground, underground, etc. The implementation method of the tension control unit 600 is not limited, and includes, for example, an electric actuator method using an actuator that moves linearly under the driving force of a motor, a hydraulic or pneumatic cylinder method using hydraulic or pneumatic pressure, or a reel method using a wrench that rotates in the opposite direction using the driving force of a motor.

[0071] In one example of the reel method, the tension adjustment unit 600 includes a motor 610 that generates driving force, a rotating shaft 620 that rotates in the opposite direction under the driving force of the motor 610, and a reel 630. The reel 630 is arranged to rotate about the rotating shaft 620, and the tension of the branch line is adjusted by rotating in the direction of winding or unwinding the branch line 250. However, the tension control unit 600 can be adapted to various design schemes and is not limited to the structure shown in this embodiment.

[0072] According to the control unit 500 of this embodiment, based on predetermined patterns of displacement, tilt, and acceleration anomalies corresponding to earthquake anomalies and ground subsidence anomalies, respectively, it determines whether each utility pole 200 corresponds to an earthquake anomaly or a ground subsidence anomaly. As for the specific determination methods, the methods for determining earthquake anomalies and ground subsidence anomalies have been described in previous embodiments, so detailed descriptions are omitted here.

[0073] Control unit 500 performs vibration reduction operation (see...) Figure 8(a) In this process, the control unit 500 temporarily relieves the tension of the branch line 250 of the utility pole 200, which is identified as experiencing an earthquake anomaly. During an earthquake anomaly, the utility pole 200 vibrates relatively rapidly in the vertical or lateral direction. If the anchoring force of the branch line 250 is too strong at this time, the seismic vibration of the ground may be directly transmitted to the utility pole 200 through the branch line 250, and the strong restraint of the branch line 250 may actually limit the range of motion of the utility pole 200. Therefore, the control unit 500 temporarily relaxes the tension of the branch line 250 in a tension relaxation direction opposite to the initial tension direction (for example, by rotating the reel 630 a predetermined number of times in the direction of relaxing the branch line 250) to alleviate the situation where the seismic vibration is directly transmitted from the ground to the utility pole 200 through the branch line 250, and to relax the restriction on the range of motion of the utility pole 200 in response to the seismic vibration. When the earthquake anomaly is no longer detected, the control unit 500 restores the tension of the branch line 250.

[0074] On the other hand, the control unit 500 controls the tension adjustment unit 600 to perform tilt maintenance operations on the utility pole 200 that is determined to have abnormal ground settlement, by increasing the tension of the branch line 250 to maintain the tilt of the utility pole 200 within a predetermined stable range (see...). Figure 8 (b) Here, the stability range can be, for example, between -L and +L degrees relative to 0 degrees, where 0 degrees is the inclination of the pole 200 along the vertical direction. L is a natural number, and the specific number can be determined based on various environmental factors. Depending on the design scheme, the stability range can be the normal angle range described in the previous embodiment.

[0075] When ground subsidence is abnormal, the ground subsides on the side facing the utility pole 200, causing the pole to tend to tilt in a predetermined direction. Therefore, the control unit 500 increases the tension of the branch line 250 in a tension direction equal to the initial tension direction (for example, by rotating the reel 630 a predetermined number of times along the winding direction of the branch line 250), so that the utility pole 200 is pulled by the branch line 250, and the pole 200 does not tilt in that direction.

[0076] The above embodiment describes a situation where, for a utility pole 200 determined to be above ground settlement, a tilt maintenance operation is performed, wherein the tension of the branch line 250 is increased to maintain the tilt of the utility pole 200 within a predetermined stable range. The direction in which the branch line 250 supports the utility pole 200 is fixed. However, according to the design, the control unit 500 can control the tension of the branch line 250 in different ways based on the relationship between the direction in which the branch line 250 supports the utility pole 200 and the tilt direction of the utility pole 200. Such embodiments will be described below.

[0077] Figure 9It is a plan view illustrating the relationship between the support direction of the branch line and the tilt direction of the utility pole in a utility pole network system according to an embodiment of the present invention.

[0078] like Figures 7 to 9 As shown, branch line 250 supports pole 200 by pulling pole 200 along the first direction E0. With pole 200 as the center, a critical angle ft with respect to the support direction E0 of branch line 250 is predetermined. Critical directions Et with critical angle ft are defined in both clockwise and counterclockwise directions relative to the support direction E0 of branch line 250.

[0079] When the control unit 500 determines that the utility pole 200 is tilted, it calculates the angle between the support direction E0 of the branch line 250 and the tilt direction of the utility pole 200, and performs a tilt maintenance operation based on whether the calculated angle is greater than the critical angle ft. For example, if the angle f1 between the support direction E0 of the branch line 250 and the tilt direction E1 of the utility pole 200 is greater than ft, and direction E1 is outside the range between directions E0 and Et, the control unit 500 will perform a tilt maintenance operation. If the angle f2 between the support direction E0 of the branch line 250 and the tilt direction E2 of the utility pole 200 is less than ft, and direction E2 is within the range between directions E0 and Et, the control unit 500 will not perform a tilt maintenance operation. If the angle f3 between the support direction E0 of the branch line 250 and the tilt direction E3 of the utility pole 200 is less than ft, and direction E3 is within the range between directions E0 and Et, the control unit 500 will not perform a tilt maintenance operation.

[0080] If the angle between the support direction E0 of the branch line 250 and the tilt direction of the pole 200 is greater than the critical angle ft, the tension of the branch line 250 can keep the tilt of the pole 200 within a stable range. Therefore, if the angle is not greater than the critical angle, the control unit 500 will not perform tilt maintenance operations.

[0081] In this embodiment, the case where the branch line 250 is installed in only one direction is described. However, for a single utility pole 200, multiple branch lines 250 can be installed in different directions. In this case, the control unit 500 can select the branch line 250 that is closest to the axis opposite to the tilt direction of the utility pole 200 from the multiple branch lines 250, and perform a tilt maintenance operation by increasing the tension of the selected branch line 250.

[0082] However, in the above embodiments, the utility pole 200 can tilt in different directions depending on abnormal ground subsidence. An embodiment of the tension control unit 600 configuration taking this into account will be described below.

[0083] Figure 10It is a plan view illustrating how a tensioner 600 moves in a utility pole network system according to an embodiment of the present invention.

[0084] like Figure 7 and Figure 10 As shown, the utility pole network system 1 according to this embodiment includes a tension control unit 600 connected to one end of a branch line 250, a movement guide unit 710 and a drive unit 720 for guiding the tension control unit 600 to move around a utility pole 200 on the ground, for driving the tension control unit 600 to move along the movement guide unit 710; and a pole support unit 730 for supporting on the pole 200, connected to the other end of the branch line 250, and rotatable around the pole 200 so that its direction changes with the position of the tension control unit 600.

[0085] For example, the motion guide 710 includes a circular track centered on the rod 200. The motion guide 710 guides the tension control unit 600 to move clockwise or counterclockwise around the rod 200 under the drive of the drive unit 720.

[0086] The drive unit 720 may include a motor disposed in the movement guide 710 or the tension control unit 600 to drive the tension control unit 600 to move along the movement guide 710 to a predetermined point on the movement guide 710.

[0087] The pole support 730 includes an annular base 731 coupled around the pole 200; a guide rail 732 extending circumferentially along the pole 200; and a movable part 733 connected to the pole 250 and movably supported on the base 731 along the guide rail 732. When the base 731 is connected to the pole 200, the movable part 733 can move along the guide rail 732 as the position of the tension control unit 600 changes, thereby preventing the branch line 250 from winding or twisting around the pole 200.

[0088] According to this structure, the control unit 500 determines the tension direction corresponding to the abnormal ground subsidence (or earthquake) condition based on the sensing value of the sensor 300, and moves the tensioning unit 600 to a position corresponding to the determined tension direction. For example, when the control unit 500 determines that the tilt direction of the utility pole 200 is at the 1 o'clock position, the control unit 500 moves the tension control unit 600 to point G on the moving guide unit 710 corresponding to the 7 o'clock position, which is opposite to the determined 1 o'clock position. In the following description, the tension adjustment unit 600 adjusts the tension of the branch line 250 in the same way as in the previous embodiment, so the description is omitted.

[0089] Alternatively, depending on the design, the tension control unit 600 can control the tension of the branch line 250 and the tension of the distribution line 100 separately. In this case, the control unit 500 can selectively control the tension of the branch line 250 or the tension of the distribution line 100, or it can control the tension of both simultaneously, depending on the specific circumstances. For example, one of several predefined risk levels can be determined based on the sensing results of the sensor 300. The control unit 500 can control the tension of either the branch line 250 or the distribution line 100 when the risk level is low, and control the tension of both when the risk level is high. When distributing the driving force for tension control, the control unit 500 can also adjust the ratio of the tension of the branch line 250 to the tension of the distribution line 100. The ratio adjustment can be determined by the predefined risk level.

[0090] Furthermore, if one of the multiple predefined areas is identified as an earthquake anomaly occurrence area, the control unit 500 can determine the earthquake anomaly prediction area from the remaining areas predicting earthquake propagation. For example, the control unit 500 can determine that the earthquake anomaly prediction area is an area adjacent to the earthquake anomaly occurrence area, located in or adjacent to the direction of vibration propagation caused by the earthquake anomaly. The control unit 500 controls the tension control unit 600 of the multiple utility poles 200 located in the earthquake anomaly prediction area to pre-adjust the tension of the branch line 250 of each utility pole 200. The pre-adjustment of the tension of the branch line 250 can be performed in various ways. For example, the control unit 500 can perform a preliminary operation to pre-relax the tension of the branch line 250 to a degree less than the predetermined relaxation degree in the damping operation (e.g., 80% when the relaxation degree in the damping operation is 100%).

[0091] Furthermore, the control unit 500 can disconnect the power supply to the utility pole 200 at the location where an earthquake anomaly is determined to have occurred. Subsequently, when the earthquake anomaly is determined to have ended, the control unit 500 can determine whether the utility pole 200 at the location where transmission was cut off is abnormal (e.g., whether the tilt of the utility pole 200 exceeds an acceptable range), restore transmission to the utility pole 200 that is determined to be normal, and notify the administrator if transmission to the utility pole 200 that is determined to be abnormal is not restored.

[0092] Unless otherwise stated, the embodiments described above with reference to the figures are not mutually exclusive configurations, and multiple embodiments may be selectively combined and implemented within a single device. Those skilled in the art, when implementing the inventive concept, may choose and apply any combination of these multiple embodiments.

Claims

1. A utility pole network system, used as a system for determining the location of seismic anomalies, comprising: Multiple utility poles are installed vertically to support power distribution lines, with each pole spaced apart from the ground. Multiple sensors are installed on each of the multiple utility poles to sense the displacement and acceleration of each utility pole; The communication unit communicates with multiple sensors and receives the sensor values ​​from each sensor. as well as The control unit, in the absence of the sensing values ​​received from each of the utility poles via the communication unit, determines whether to display an earthquake anomaly pattern including a P-wave vibration pattern and an S-wave vibration pattern. The P-wave vibration pattern vibrates in the vertical direction within a predetermined first frequency range, and the S-wave vibration pattern follows the P-wave vibration pattern in the lateral direction relative to the vertical direction within a second frequency range lower than the first frequency range. Based on the positional correlation between the utility poles sensed in the absence of the sensing values, the control unit determines the location of the earthquake anomaly among the multiple utility poles.

2. The utility pole network system according to claim 1, wherein, The location correlation includes displaying the density of the locations of the utility poles in the earthquake-related modes. The control unit identifies regions among a predefined set of regions that exceed the density threshold as regions where earthquake anomalies have occurred.

3. The utility pole network system according to claim 1, wherein, The control unit calculates and estimates the epicentral distance as the distance from each of the three or more utility poles that are determined to indicate the earthquake anomaly mode to the epicenter, and determines the coordinates of the intersection of a circle centered on each of the poles with a radius equal to the calculated epicentral distance as the epicentral location.

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