JP2010146398A - Patrol support system, patrol support method and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To support an efficient patrol of power facilities according to the probability of damage by lightning. <P>SOLUTION: The inspection tour support system 20 includes: an iron tower position database 232 storing iron tower information including the setting position of an iron tower; a lightning strike information acquisition part 211 which acquires, with respect to a plurality of lightning strikes which occurred within a predetermined period, lightning strike information showing a location and an error ellipse of lightning strike; a patrol object specification part 212 which specifies, for each of the lightning strikes, an iron tower that is a patrol object in which the probability of lightning strike at its setting position is a predetermined value or more; a priority determination part 213 which determines a priority of patrol for the iron towers of the inspection tour object according to an evaluation value related to the probability of damage by lightning; and a patrol information output part 214 which outputs patrol information including the priority of the iron tower of the patrol object. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a patrol support system, a patrol support method, and a program.

Conventionally, a lightning location system (Lightning Location System; LLS) is used to locate the location of lightning and use it for patrols for the maintenance of electric power facilities. For example, Patent Document 1 proposes a system that estimates the position of a lightning conductor using LLS.
Japanese Patent Laid-Open No. 2005-130566

  The invention described in Patent Document 1 is based on the premise that lightning strikes affect a steel tower within a predetermined range from the standard lightning strike position. However, the errors related to the LLS orientation are distributed according to parameters (direction, arrival time, etc.) that can be participated in the orientation (from the relationship of thresholds, etc.) at each antenna point, and the distribution does not necessarily correspond to the distance from the orientation location. do not do. Therefore, when patrols such as a steel tower, as in the invention described in Patent Document 1, if the distance from the orientation position is used as a reference, the orientation position deviates from the position where the lightning strike actually occurred, and the steel tower is greatly affected by lightning strikes. May be delayed.

  The present invention has been made in view of such a background, and provides a patrol support system, a patrol support method, and a program that can support efficient patrol of power equipment according to the probability of lightning. For the purpose.

  A main invention of the present invention for solving the above problem is a system for supporting patrol of electric power equipment, and for each electric power equipment, an installation position that stores an installation position where the electric power equipment is installed Refer to the storage unit, a lightning strike information acquisition unit that acquires a region information indicating a region where the probability of occurrence of the lightning strike is a predetermined value or more, and the installation position storage unit when a plurality of lightning strikes occur And about each said lightning strike, the inspection object specific part which specifies the said electric power equipment in which the said installation position is included in the area | region which the said area | region information shows as an inspection object facility, About each said inspection object equipment specified, the installation position and An evaluation value of the probability of lightning at the installation position is calculated based on the area information, and a priority determination unit that determines the priority of inspection according to the evaluation value, and each inspection target equipment And further comprising an output unit that outputs the priority and the determined Te.

  According to the patrol support system of the present invention, it is possible to determine the priority of patrol of electric power equipment according to the occurrence probability of lightning. Accordingly, the patrol person can preferentially patrol power facilities that have been subjected to lightning or power facilities that are highly affected by lightning, with reference to the output priority. Therefore, efficient and effective patrol of power equipment can be realized.

  In the inspection support system of the present invention, the area is represented by a circle or an ellipse centered on a reference position, and the priority determination unit calculates a first distance from the reference position to the installation position, A second distance from the reference position to a point where a straight line passing through the reference position and the installation position intersects the boundary of the circle or ellipse is calculated, and a quotient obtained by dividing the first distance by the second distance is calculated. It may be calculated as the evaluation value, and the priority may be determined so as to increase as the evaluation value decreases.

  When lightning strikes are calculated from the arrival directions and arrival time differences of electromagnetic waves with respect to a plurality of antennas, an error in the shape of an ellipse (including a circle) occurs at the lightning strike location, and this error is expressed as an error ellipse. Inside this error ellipse, the probability density is higher at the center, so the smaller the ratio between the radius of the error ellipse that passes through the installation position of the power equipment and the distance from the center (location position) to the installation position, the smaller the probability of occurrence. growing. According to the patrol support system of the present invention, the priority can be determined according to the distance ratio, so the lightning probability at the installation position is calculated from the probability distribution, and the priority is determined according to the lightning probability. Rather than doing so, priority can be determined easily and quickly.

Further, in the patrol support system of the present invention, the lightning strike information acquisition unit acquires, for each lightning strike, current information for obtaining a current value generated by the lightning strike and the region information, and the output unit includes the You may make it output the said current value with the said priority about each inspection object equipment.
In this case, since the size of the lightning strike is output, the patrol person can formulate a patrol plan with reference to the lightning strike probability and the magnitude of the lightning strike.

In the patrol support system of the present invention, for each lightning strike, current information for obtaining a current value generated by the lightning strike and the region information are acquired, and the patrol support system includes a lightning strike ID indicating the lightning strike, A patrol information storage unit for storing patrol information including the facility ID indicating the patrol target facility specified for the lightning strike, the current value, and the priority determined for the patrol target facility, and the priority determining unit Deletes the inspection information other than the inspection information with the highest priority from the inspection information storage unit when a plurality of inspection information is stored in the inspection information storage unit for the same equipment ID. The output unit may output the inspection information stored in the inspection information storage unit.
In this case, when the installation position of a certain power facility is included in the area for multiple lightning strikes, that is, when there is an occurrence probability for multiple lightning strikes at the installation position of a certain power facility, Only the current value can be output.

  Another aspect of the present invention is a method for supporting patrol of electric power equipment, wherein the computer stores, for each electric power equipment, an installation position in which the electric power equipment is installed in a memory, When a plurality of lightning strikes occurs, area information indicating an area where the probability of occurrence of the lightning strike is equal to or greater than a predetermined value is obtained for each lightning strike, and the area information for each lightning strike is obtained by referring to the memory. The power equipment whose installation position is included in the indicated area is specified as inspection target equipment, and the probability of lightning at the installation position is determined based on the installation position and the area information for each specified inspection target equipment. A value is calculated, a priority of inspection is determined according to the evaluation value, and the determined priority is output for each inspection target facility.

  In the patrol support method of the present invention, the region is represented by a circle or an ellipse centered on a reference position, and the computer calculates a first distance from the reference position to the installation position, and the reference position To calculate a second distance to a point where a straight line passing through the reference position and the installation position and a boundary of the circle or ellipse intersect, and a quotient obtained by dividing the first distance by the second distance is the evaluation value And the priority may be determined so as to increase as the evaluation value decreases.

  According to another aspect of the present invention, there is provided a program for supporting patrol of electric power equipment, wherein an installation position that is a position where the electric power equipment is installed is stored in a computer for each of the electric power equipment. A step of acquiring region information indicating a region where the probability of occurrence of the lightning strike is a predetermined value or more for each lightning strike, and referring to the memory, for each lightning strike. The step of identifying the power equipment whose installation position is included in the area indicated by the area information as the inspection target equipment, and the installation of each specified inspection target equipment based on the installation position and the area information. Calculating an evaluation value of the probability of lightning at the position, determining the priority of inspection according to the evaluation value, and determining the superiority determined for each inspection target facility And it is executed and outputting degrees, a.

  In the program of the present invention, the area is represented by a circle or an ellipse centered on a reference position, and in the step of determining the priority, the computer has a first distance from the reference position to the installation position. And calculating a second distance from the reference position to a point where a straight line passing through the reference position and the installation position intersects the boundary of the circle or ellipse, and the first distance is the second distance. The priority may be determined such that the smaller the divided quotient is, the larger the priority is.

  Other problems and solutions to be disclosed by the present application will be made clear by the embodiments of the invention and the drawings.

  ADVANTAGE OF THE INVENTION According to this invention, the efficient patrol of the electric power equipment according to the probability of lightning can be supported.

  Hereinafter, a patrol support system 20 according to an embodiment of the present invention will be described. The patrol support system 20 of the present embodiment is a system that supports patrol of a steel tower that is a power facility, and outputs the priority of the steel tower in consideration of the effects of lightning strikes.

  FIG. 1 is a diagram showing an overall configuration of a computer system including a patrol support system 20 of the present embodiment. The patrol support system 20 is connected to the lightning location system 10 via the communication network 30. The communication network 30 is, for example, the Internet or a LAN (Local Area Network), and is constructed by Ethernet (registered trademark), a telephone line network, a wireless communication network, or the like.

When a lightning strike occurs, the lightning location system 10 outputs information including the probability distribution of the occurrence location and the value of current generated by the lightning strike (hereinafter simply referred to as current value) (hereinafter referred to as lightning strike information). To do. For example, the lightning strike position determination system 10 obtains the arrival direction of electromagnetic waves using an orthogonal loop antenna, and calculates the position where the arrival directions of electromagnetic waves obtained by the two orthogonal loop antennas, the arrival time difference, and the like intersect as an orientation position. The orthogonal loop antenna is provided in a plurality of antenna installation stations (for example, there are currently four antenna installation stations in the Chugoku region). The lightning strike location system 10 has N orthogonal loop antennas, a measurement azimuth θ, an optimized estimated azimuth θ ^* , a measured signal strength S, an optimized estimated signal strength S ^* , a signal arrival time t, When the optimization arrival time is t ^* , the azimuth error standard deviation is σ _θ , the signal strength error standard deviation is σ _s , and the arrival time error standard deviation is σ _t , the following equation is minimized. A point is calculated as an orientation position.

  The lightning strike location system 10 outputs information including the location calculated as described above and the error ellipse obtained based on each standard deviation as lightning strike information. The error ellipse indicates a boundary where the lightning occurrence probability is a predetermined value (for example, 50%) in the probability distribution related to the lightning occurrence position. In other words, the probability of being a lightning strike position is higher at the center of the error ellipse. FIG. 2 is a diagram for explaining an error ellipse. In the present embodiment, the error information includes the orientation position represented by latitude and longitude, the major axis and minor axis of the error ellipse, and the major axis orientation. It is assumed that the azimuth is an angle obtained by rotating the major axis clockwise with the north as 0 degree. In the example of FIG. 2, the error ellipse 1 is an ellipse defined by the major axis 4 and the minor axis 5 with the orientation position 2 as the center, and this ellipse is rotated from the north by an azimuth θ of an angle 3. In the present embodiment, each standard deviation is assumed to be constant in order to simplify the description.

  The patrol support system 20 is a computer such as a personal computer, a workstation, a PDA (Personal Digital Assistant), or a mobile phone terminal that outputs the priority of the tower to be patroled. The patrol support system 20 determines and outputs the priority of the steel tower based on the lightning strike information output from the lightning strike location system 10.

  Details of the patrol support system 20 will be described below.

  FIG. 3 is a diagram illustrating a hardware configuration of the patrol support system 20. The patrol support system 20 includes a CPU 201, a memory 202, a storage device 203, a communication interface 204, an input device 205, and an output device 206. The storage device 203 stores various programs and data, for example, a hard disk drive, a flash memory, a CD-ROM drive, or the like. The CPU 201 implements various functions by reading a program stored in the storage device 203 into the memory 202 and executing it. The communication interface 204 is an interface for connecting to the communication network 30. For example, an adapter for connecting to Ethernet (registered trademark), a modem for connecting to a telephone line network, and a wireless communication network are used. Such as a wireless communication device. The input device 205 is a keyboard, mouse, touch panel, microphone, or the like that accepts data input. The output device 206 is, for example, a display, a printer, or a speaker that outputs data.

  FIG. 4 is a diagram illustrating a software configuration of the patrol support system 20. The patrol support system 20 includes a lightning strike information acquisition unit 211, a patrol target identification unit 212, a priority determination unit 213, a patrol information output unit 214, a lightning strike information database 231, a tower position database 232, and a patrol information database 233. The lightning strike information acquisition unit 211, the inspection target identification unit 212, the priority determination unit 213, and the inspection information output unit 214 are executed by the CPU 201 included in the inspection support system 20 executing a program stored in the storage device 203. Realized. The lightning strike information database 231, the tower position database 232, and the patrol information database 233 are realized as storage areas provided by the memory 202 and the storage device 203.

The lightning strike information database 231 stores lightning strike information. FIG. 5 is a diagram illustrating a configuration example of lightning strike information stored in the lightning strike information database 231. The lightning strike information includes identification information for identifying the lightning strike (hereinafter referred to as lightning strike ID), the date and time of the lightning strike, the latitude and longitude indicating the lightning position, the current value of the lightning strike, the direction of the error ellipse, the major axis and the minor axis. ing.
The lightning strike information acquisition unit 211 accesses the lightning strike location system 10 to obtain lightning strike information, and registers the obtained lightning strike information in the lightning strike information database 231.

  The tower position database 232 (corresponding to the “installation position storage unit” of the present invention) stores information including the position where the tower is installed (hereinafter referred to as tower information). In the present embodiment, the position is represented by latitude and longitude. FIG. 6 is a diagram illustrating a configuration example of tower information stored in the tower position database 232. The steel tower information includes an identification number of the steel tower (hereinafter referred to as a steel tower number), and latitude and longitude indicating the position where the steel tower is installed.

  The inspection information database 233 (corresponding to the “inspection information storage unit” of the present invention) stores information about a steel tower to be inspected (hereinafter referred to as inspection information). FIG. 7 is a diagram illustrating a configuration example of inspection information stored in the inspection information database 233. The patrol information includes a lightning strike ID, a tower number, a distance ratio, a current value, and a priority. The distance ratio (evaluation of the probability of lightning strike) is the first distance from the lightning strike location to the tower installation position, from the location on the straight line passing through the tower installation location to the boundary of the error ellipse. The quotient divided by the second distance. That is, the smaller the distance ratio, the closer to the center of the error ellipse, the higher the probability of lightning to power equipment such as a steel tower. The priority is the priority of the tower to be inspected. As will be described later, the priority is set to be higher as the distance ratio is smaller.

  The inspection target specifying unit 212 specifies a steel tower that is thought to be highly influenced by lightning strikes as a target of patrol based on the lightning strike information. A steel tower that is considered to have a high lightning impact has a high probability of lightning at its installation location.In this embodiment, if there is a steel tower included in the error ellipse for a certain lightning strike, If the tower is to be inspected and there is no tower included in the error ellipse, the tower closest to the lightning strike location is to be inspected. The inspection target specifying unit 212 creates inspection information and registers it in the inspection information database 233 for the tower to be inspected.

  The priority determination unit 213 determines the priority of the tower to be inspected, and updates the inspection information in the inspection information database 233. The priority is set to be higher as it is closer to the center of the error ellipse. Details of the priority determination process by the priority determination unit 213 will be described later.

  The patrol information output unit 214 outputs the patrol information stored in the patrol information database 233. As will be described later, the patrol information output unit 214 outputs the priority and current value along with the installation position of the steel tower on the map. The patrol information output unit 214 may output the list in the order of priority, order of current values, and the like.

Hereinafter, the process performed by the patrol support system 20 will be described.
FIG. 8 is a diagram showing a flow of processing for specifying a tower to be inspected and determining its priority.
The inspection target identification unit 212 reads lightning strike information corresponding to the date and time within the past 24 hours from the current lightning strike information database 231 (S301). In the present embodiment, lightning strike information on lightning strikes within the past 24 hours is considered, but not limited to this, for example, it may be within 6 hours or within the past week.

The inspection target specifying unit 212 performs the following processing for each lightning strike information read from the lightning strike information database 231.
The inspection target specifying unit 212 sets the latitude and longitude of the lightning strike information to A1 and O1, respectively (S302). As shown in FIG. 2 described above, the inspection target specifying unit 212 has the ellipse 1 specified by the error major axis 4 and the error minor axis 3 of the lightning strike information centered on the point indicated by A1 and O1 (location position 2). An area rotated clockwise by the error azimuth 3 (θ) from the state where the error major axis is aligned in the north-south direction is defined as R (S303).
The inspection target specifying unit 212 searches the tower position database 232 for the tower installation position indicated by the latitude and longitude of the tower information included in R (S304), and the number of searched tower information is 0 (zero). In such a case (S305: YES), the tower position database 332 is searched for the closest distance from the orientation position indicated by A1 and O1 to the position indicated by the latitude and longitude of the tower information (S306).

The inspection target specifying unit 212 performs inspection information registration processing illustrated in FIG. 9 (S307). FIG. 10 is a diagram for explaining the distance calculated in the registration process shown in FIG.
For each of the read tower information, the inspection target specifying unit 212 sets the latitude and longitude of the tower information as A2 and O2 (S321), from the orientation position indicated by A1 and O1 to the installation position of the tower indicated by A2 and O2. Is calculated as D1 (S322). In the example of FIG. 10, the orientation position 2 is indicated by (A1, O1), and the installation position 11 of the steel tower is indicated by (A2, O2). The inspection target specifying unit 212 calculates a distance from the orientation position 2 to a point 12 where a straight line passing through the orientation position 2 and the tower installation position 11 intersects the R boundary (ellipse 1), and sets it as D2 (S323). ). The inspection target specifying unit 212 calculates a quotient D1 / D2 obtained by dividing D1 by D2 to obtain a distance ratio (S324). The inspection target identification unit 212 generates inspection information including a lightning strike ID of lightning strike information, a tower number of tower information, a distance ratio, a current value of lightning strike information, and 0 (zero), and registers it in the inspection information database 233 ( S325).

Returning to FIG. 8, after the inspection target identification unit 212 repeats the above processing for each lightning strike information, the priority determination unit 213 performs the priority determination processing shown in FIG. 11 (S308).
The priority determination part 213 reads the tower number from the patrol information database 233 without duplication (S341). For each of the read tower numbers, the priority determination unit 213 searches the inspection information database 233 for inspection information corresponding to the tower numbers (S342), and when there are two or more inspection information corresponding to the tower numbers ( (S343: YES), the inspection information other than the inspection information having the smallest distance ratio is deleted from the inspection information database 233 (S344).
Next, the priority determination unit 213 reads all inspection information registered in the inspection information database 233 (S345). The priority determination unit 213 updates the inspection information database 233 so as to add 1 to the priority of the inspection information having a distance ratio smaller than the distance ratio of the inspection information for each of the read inspection information (S346). As a result, the inspection information having a smaller distance ratio is set to have a higher priority.

  12-15 is a figure which shows the specific example of arrangement | positioning of a steel tower, and generation | occurrence | production of a lightning strike. FIG. 12 is a diagram illustrating a state in which five lightning strikes are generated in an area where a plurality of steel towers 11 are arranged. FIG. 12 shows error ellipses L1 to L5 relating to five lightning strikes. The center of each error ellipse L1 to L5 is the orientation position. 13 shows only error ellipses L1 and L2, FIG. 14 shows only error ellipses L3 and L4, and FIG. 15 shows only error ellipses L3 and L5.

  As described above, when the steel tower 11 is installed in the error ellipse, the steel tower 11 is the object of patrol, and when the steel tower 11 is not installed in the error ellipse, it is the most from the orientation position. The nearby tower 11 is the object of patrol. As shown in FIG. 13, a steel tower T009 is included in the error ellipse L2. The tower 11 closest to the position of the error ellipse L2 is the tower T017. However, the tower T017 is not included in the error ellipse L2, and thus is not subject to inspection. Thus, according to the patrol support system 20 of the present embodiment, it is possible to determine whether or not to make a patrol target depending on whether or not the installation position of the steel tower is in the error ellipse. At the time of lightning strike location determination by the lightning strike location determination system 10, an elliptical error may occur depending on the number of parameters (total) such as the arrival direction of electromagnetic waves detected by each antenna and the arrival time difference. Therefore, the patrol support system 20 of the present embodiment. According to the above, in consideration of such measurement errors, a tower with a high probability of a lightning strike, that is, a tower with a high possibility of lightning strike or a high influence of lightning strike, should be preferentially patroled. It becomes possible. Therefore, efficient and effective patrol can be performed.

Further, as described above, the distance D1 from the orientation position to the tower 11 is divided by the distance D2 from the orientation position to the point where the boundary of the error ellipse intersects on the straight line connecting the orientation position and the installation position of the tower 11. The smaller the distance ratio is, the higher the priority is set. In the example of FIG. 13, since the steel tower 11 is not arranged in the error ellipse L1, the steel tower T002 closest to the orientation position at the center of L1 is the object of inspection, but the steel tower T002 is outside the error ellipse L1. Therefore, the distance ratio obtained by dividing the distance D ₁ 1 by the distance D ₁ 2 exceeds 1. On the other hand, since the steel tower T009 is in the error ellipse L2, the distance ratio obtained by dividing the distance D ₂ 1 by the distance D ₂ 2 is less than 1. Therefore, even when a tower outside the error ellipse is subject to patrol, the priority can always be lower than the tower inside the error ellipse. High priority can be set.

Further, when both of the two towers 11 are in the error ellipse, the priority with the higher probability of lightning is set. As shown in FIG. 14, a steel tower T005 is installed in the error ellipse L3, and a steel tower T006 is installed in the error ellipse L4. The distance ratio obtained by dividing the distance D ₄ 1 by the distance D ₄ 2 The distance ratio obtained by dividing the distance D ₃ 1 by the distance D ₃ 2 is smaller. That is, the lightning strike probability is higher at the installation position of the steel tower T005 than at the installation position of the steel tower T006. According to the patrol support system 20 of the present embodiment, in such a case, it is possible to set the priority of the tower T005 at the installation position where the lightning strike probability is higher than the installation position of the tower T006 higher than the tower T006. it can. Therefore, priority can be determined according to the degree affected by lightning.

Further, in the patrol support system 20 of the present embodiment, for the steel tower installed in the region where the plurality of error ellipses intersect, the patrol information other than the lightning with the smallest distance ratio is deleted from the patrol information database 233. Yes. Therefore, the current value from a lightning strike with a higher probability of occurrence can be set as the current value flowing through the steel tower. As shown in FIG. 15, the steel tower T005 is installed inside both the error ellipse L3 and the error ellipse L5. Here, the distance D _{3 1} than divided by the distance ratio a distance D _{3 2,} for better distance D _{5 1} distance D _{5 2} divided by the distance ratio is less, the current value for the pylon T005, error ellipse Set as the current value of lightning strike information corresponding to L5. Therefore, the value of the current flowing through the steel tower T005 can be analyzed with higher accuracy.

  FIG. 16 is a diagram illustrating an example of the screen 41 output by the patrol information output unit 214. In the example of FIG. 16, the power system by the steel tower 11 is displayed on the screen 41 on the screen 41. The screen 41 includes an ellipse 411 representing an error ellipse, a circle 412 representing priority, and a label 413 representing a current value. The circle 412 is displayed larger as the priority is higher. As described above, the high-priority tower 11 is displayed large on the screen 41, and the current value due to the lightning strike is displayed on the label 413 for each tower 11, so that the tower 11 that the patrol person preferentially patrols can be easily viewed. It becomes possible to grasp. The patrol information output unit 214 may output a list of tower numbers and current values to the screen 41 as a table in order of priority. The patrol information output unit 214 may output the patrol information in the order of values obtained by multiplying the current value by the probability or priority.

  In this embodiment, the priority determination unit 213 of the patrol support system 20 assumes that the standard deviation of errors such as the arrival direction, signal strength, and arrival time of the electromagnetic wave signal at each antenna installation station is constant. Although the priority is determined according to the ratio, the priority may be determined according to the lightning probability by calculating the lightning probability at the installation position of each tower. The priority determination unit 213 may calculate an expected value obtained by multiplying the probability of lightning by a current value, and determine the priority according to the expected value.

  Further, in the present embodiment, when the same steel tower is in the error ellipse related to a plurality of lightning strikes, only the inspection information with the highest probability of lightning is left, and the others are deleted. However, the present invention is not limited thereto, and an expected value obtained by multiplying the probability of lightning by the current value may be calculated, and only the highest expected value may be left and the others may be deleted. Further, in this case, instead of the expected value, only the one having the largest quotient obtained by dividing the current value by the distance ratio may be left.

  Further, all the inspection information may be output without deleting the inspection information having the duplicated tower number. In this case, step S341 to step S344 in FIG. 11 can be omitted.

  In the present embodiment, the lightning strike information acquisition unit 211 of the patrol support system 20 acquires the lightning strike information by accessing the lightning strike location system 10. However, the present invention is not limited to this. An input may be received, or an input of a signal from a loop antenna may be received, and an intersection position such as an arrival direction of electromagnetic waves or a difference in arrival time may be calculated as an orientation position.

  Although the present embodiment has been described above, the above embodiment is intended to facilitate understanding of the present invention and is not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes equivalents thereof.

It is a figure showing the whole computer system composition containing patrol support system 20 of this embodiment. It is a figure for demonstrating an error ellipse. 2 is a diagram illustrating a hardware configuration of a patrol support system 20. FIG. It is a figure which shows the software structure of the patrol support system 20. It is a figure which shows the structural example of the lightning strike information. It is a figure which shows the structural example of steel tower information. It is a figure which shows the structural example of patrol information. It is a figure which shows the steel tower used as the object of patrol, and shows the flow of the process which determines the priority. It is a figure which shows the flow of a registration process of patrol information. It is a figure for demonstrating distance ratio. It is a figure which shows the flow of a priority determination process. It is a figure which shows the specific example of arrangement | positioning of a steel tower, and generation | occurrence | production of a lightning strike. It is a figure which shows only the error ellipses L1 and L2 in the specific example of FIG. It is a figure which shows only the error ellipses L3 and L4 in the specific example of FIG. It is a figure which shows only the error ellipses L3 and L5 in the specific example of FIG. It is a figure which shows an example of the screen.

Explanation of symbols

10 Lightning Location System 20 Patrol Support System 201 CPU
202 Memory 203 Storage Device 204 Communication Interface 205 Input Device 206 Output Device 211 Lightning Information Acquisition Unit 212 Inspection Target Identification Unit 213 Priority Determination Unit 214 Inspection Information Output Unit 231 Lightning Information Database 232 Tower Location Database 233 Inspection Information Database

Claims (8)

A system that supports patrol of electric power equipment,
For each power facility, an installation position storage unit that stores an installation position that is a position where the power facility is installed;
When a plurality of lightning strikes occurs, for each lightning strike, a lightning strike information acquisition unit that obtains region information indicating a region where the probability of occurrence of the lightning strike is a predetermined value or more;
With reference to the installation position storage unit, for each lightning strike, a patrol target identifying unit that identifies the power equipment including the installation position in the area indicated by the area information as a patrol target facility;
For each identified inspection target facility, a priority for calculating the evaluation value of the probability of lightning at the installation position based on the installation position and the area information, and determining the priority of inspection according to the evaluation value A decision unit;
An output unit that outputs the determined priority for each inspection target facility;
A patrol support system comprising: The inspection support system according to claim 1,
The region is represented by a circle or ellipse centered on a reference position,
The priority determination unit calculates a first distance from the reference position to the installation position, and from the reference position, a straight line passing through the reference position and the installation position intersects with the boundary of the circle or ellipse. Calculating the second distance up to, calculating a quotient obtained by dividing the first distance by the second distance as the evaluation value, and determining the priority so as to increase as the evaluation value decreases,
Patrol support system characterized by The inspection support system according to claim 1,
The lightning strike information acquisition unit acquires, for each lightning strike, current information for obtaining a current value generated by the lightning strike and the region information,
The output unit outputs the current value together with the priority for each inspection target facility;
Patrol support system characterized by The inspection support system according to claim 1,
The lightning strike information acquisition unit acquires, for each lightning strike, current information for obtaining a current value generated by the lightning strike and the region information,
The patrol support system stores lightning ID indicating the lightning strike, equipment ID indicating the inspection target equipment specified for the lightning strike, the current value, and patrol information including the priority determined for the inspection target equipment. A patrol information storage unit,
The priority determination unit, when a plurality of inspection information is stored in the inspection information storage unit for the same equipment ID, the inspection information other than the inspection information having the highest priority as the inspection information. Delete it from memory,
The output unit outputs the inspection information stored in the inspection information storage unit;
Patrol support system characterized by A method for supporting patrol of electric power equipment,
Computer
For each power facility, store in memory the installation position, which is the position where the power facility is installed,
When a plurality of lightning strikes occurs, for each lightning strike, obtain region information indicating a region where the probability of occurrence of the lightning strike is a predetermined value or more,
Referring to the memory, for each lightning strike, identify the power equipment that includes the installation position in the area indicated by the area information as a patrol target equipment,
For each identified inspection target facility, calculate an evaluation value of the probability of lightning at the installation position based on the installation position and the area information, determine the priority of inspection according to the evaluation value,
Outputting the determined priority for each inspection target facility;
Patrol support method characterized by this. The inspection support method according to claim 5,
The region is represented by a circle or ellipse centered on a reference position,
The computer calculates a first distance from the reference position to the installation position, and calculates a first distance from the reference position to a point where a straight line passing through the reference position and the installation position intersects the boundary of the circle or ellipse. Calculating two distances, calculating a quotient obtained by dividing the first distance by the second distance as the evaluation value, and determining the priority so as to increase as the evaluation value decreases;
Patrol support method characterized by this. A program for supporting the patrol of electric power equipment,
On the computer,
For each power facility, storing in a memory an installation position that is a position where the power facility is installed;
When a plurality of lightning strikes occurs, for each lightning strike, obtaining region information indicating a region where the probability of occurrence of the lightning strike is a predetermined value or more;
With reference to the memory, for each lightning strike, identifying the power equipment whose installation position is included in the area indicated by the area information as a patrol target equipment;
For each specified inspection target facility, calculating an evaluation value of the probability of lightning at the installation position based on the installation position and the area information, and determining a priority of inspection according to the evaluation value; ,
Outputting the determined priority for each inspection target facility;
A program for running The program according to claim 7,
The region is represented by a circle or ellipse centered on a reference position,
In the step of determining the priority, the computer calculates a first distance from the reference position to the installation position, and from the reference position, a straight line passing through the reference position and the installation position and the circle or ellipse Calculating a second distance to a point where the boundary intersects, and determining the priority so that the smaller the quotient obtained by dividing the first distance by the second distance, the larger the priority;
A program characterized by

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