JP6183058B2 - Lightning strike notification system - Google Patents

Description

  The present invention relates to a lightning strike notification system for notifying lightning-related information to the site of transmission line related work when a lightning strike occurs.

  When performing a power failure operation, if there is a possibility of lightning strike near the work position, it is necessary to determine whether or not the power failure operation is possible. Therefore, conventionally, whether or not a power outage operation is possible during a lightning outage is determined by weather information, lightning location information from a lightning location locator (LLS), information on the generation status of V0 voltage on a 6 kV bus at a substation, etc. The system operator makes a decision based on this information.

  Conventionally, there is a technique described in Patent Document 1 as this kind of technique. According to Patent Literature 1, a thundercloud approach alarm range is set based on the current position of the work manager on the power transmission system diagram displayed on the monitor, and whether or not a thundercloud has entered the thundercloud approach alarm range is determined. Based on lightning information and location information of the work manager, it is possible to report the approach of thunderclouds to the work manager in the current location and to simulate a failure due to a lightning strike within the lightning strike impact range. Such a technique has been proposed.

JP 2009-20758 A

  However, in the event of a lightning strike, the grid operator is required to make a quick decision as to whether or not a power outage operation is possible. Work is required and it takes time. If the emergency recovery of work is delayed due to a delay in the judgment of the power outage work, there is a risk that the power supply in the distribution area of the substation may be hindered. In addition, if a lightning strike does not occur in the vicinity of the work position despite the decision to stop the power outage work, it is necessary to review the power outage work plan because the work that was originally possible was not performed. Therefore, it is necessary to explain again to the customer about performing the power outage work again. In this way, the determination of whether or not work can be performed is a heavy burden for the system operator. The technology of Patent Document 1 provides information for determining whether or not a power failure operation is possible to the grid operator, and the determination of whether or not a power failure task is possible is performed by the grid operator.

  The present invention solves such problems, provides a lightning strike notification system that quickly and accurately determines whether or not work can be performed when a lightning strike occurs, and informs workers of instruction information corresponding to the determination result. Objective.

  In order to achieve the above object, the present invention has the following configuration.

  (1) A lightning strike position locating device that has a plurality of sensors arranged around the observation area and that detects a plurality of sensors that detect electromagnetic waves generated by lightning strikes, and that determines a rough lightning strike position in the observation area based on the measurement results of the sensors. A centralized control device that acquires voltage information of the buses of the plurality of substations and monitors the plurality of substations at the same time, and performs an operation of powering the substation and the power transmission line, and the lightning strike location device, A lightning strike information notification device for determining lightning information related to a lightning strike to be notified to a worker based on information acquired from the centralized control device and notifying a worker, wherein the lightning strike information notification device includes the observation area. The predetermined area is divided into a plurality of small areas arranged in a matrix, the small area, range information defining the range of the small area, and the substation. A location database that stores and stores the distribution area to be supplied and the voltage of the bus of the substation acquired from the centralized control device are monitored, and it is determined whether or not a dielectric voltage due to a lightning strike has occurred on the bus. Referring to the substation lightning determination unit and the position database, the substation that performs the power failure work acquired from the central control device and the small area including the power transmission line are extracted, and the extracted small area is specified as the work area A first area for extracting a small area corresponding to a lightning strike position acquired from the lightning strike position locating device with reference to a work area identifying unit and range information in the position database, and identifying the extracted small area as a first lightning strike position When the lightning location specifying unit and the substation lightning determination unit determine that a dielectric voltage due to lightning has occurred, the distribution area in the location database The second lightning position specifying unit for extracting a small area included in the distribution area of the bus substation where the dielectric voltage is generated, and specifying the extracted small area as the second lightning strike position; A work risk determination unit for determining a work risk level based on a distance between the work area and a small area specified in common in the lightning position specifying unit and the second lightning position specifying unit; A notification information database that associates notification information to be notified to a worker, a notification content search unit that searches the notification information database for the notification information, using the work risk level determined by the operation risk determination unit as a search condition; A notification unit that notifies the worker of the notification information searched by the notification content search unit, a display unit that displays various types of information, and the display unit that includes the first lightning strike A display control unit that performs control to highlight and display the small area specified by the position specifying unit and the second lightning position specifying unit, and the display control unit includes the first lightning position specifying unit and the second lightning position specifying unit. A lightning strike notification system characterized by displaying a small area identified by a lightning strike position identifying unit in a different manner depending on the distance from the work area.

  According to (1), the lightning strike information notification device obtains a rough lightning strike position from the lightning strike location device, and also supplies the power supply area (distribution area) centered on the substation from the voltage information of the buses of the plurality of substations. ) Understand all lightning strikes. And it becomes possible to grasp | ascertain the position where the lightning strike was more correctly by specifying a lightning strike position based on the information of these two lightning strike positions. Furthermore, when the specified lightning strike position is far from the work area, it is determined that the work risk level is low, and when the lightning strike position is close, the work risk level is high. It is possible to give more appropriate instructions to the worker by setting notification information related to the above. In this way, it is possible to quickly and accurately determine whether work can be performed when a lightning strike occurs, and to notify instruction information corresponding to the determination result.

  (2) In (1), the lightning strike information notification device includes: a first adjacent area specifying unit that specifies a small area adjacent to the work area as a first adjacent area; and a small area adjacent to the first adjacent area. A second adjacent area specifying unit that specifies the second adjacent area, and the notification information database includes items of the work area, the first adjacent area, and the second adjacent area as the work risk level. The notification information is associated with each of the work area, the first adjacent area, and the second adjacent area, and the work risk determination unit includes the first lightning position specifying unit and the second lightning position specifying unit. In which the small area identified in common corresponds to the work area, the first adjacent area, or the second adjacent area, The retrieval unit retrieves the notification information from the notification information database using an area determined to be applicable by the work risk determination unit as a search condition, and the display control unit includes the first lightning position specifying unit and the second lightning strike. A lightning strike notification system characterized in that the small area specified by the position specifying unit is displayed in a different manner in each of the work area, the first adjacent area, and the second adjacent area.

  According to (2), by dividing the peripheral area of the work area into the first adjacent area and the second adjacent area according to the distance from the work area, the work risk level is set to the high work area, level It is possible to associate the first adjacent area in the middle and the second adjacent area with a small level. This makes it possible to easily determine the work risk.

  (3) In (2), in the notification information database, items in the work area, the first adjacent area, and the second adjacent area are associated with items before and during the power outage work, respectively. Furthermore, the notification information to notify the worker is associated with the item before the power outage work and during the power outage work, and the notification content search unit searches whether the power outage work before or during the power outage work acquired from the centralized control device. A lightning strike notification system characterized by further searching the notification information database for the notification information that further includes a condition and satisfies each search condition.

  According to (3), by adding the condition before power failure work or during power failure work to the work risk level judgment, for example, work stoppage before power failure work, emergency recovery if power failure work is in progress, etc. It is possible to send detailed instructions. This makes it possible to give more accurate instructions to the worker.

  (4) In (3), the lightning strike information notification device refers to a work level table in which work contents of a power outage work are associated with a plurality of work levels indicating the importance of the work contents, and the work level table. And a work level determination unit that determines a work level of the power outage work acquired from the centralized control device, and the notification information database includes items of the work level in the items before the power outage work and during the power outage work, respectively. In addition, notification information for informing a worker is associated with each of the work levels, and the notification content search unit further includes the work level determined by the work level determination unit in a search condition, A lightning strike notification system, wherein the notification information is searched from the notification information database.

  According to (4), by adding the condition of multiple levels of work levels indicating the importance of work content to the work risk level determination, for example, if the work level is high before a power outage work, If it is a lightning strike, it will be possible to send detailed instructions, such as suspending work early. This makes it possible to provide more accurate instructions to the worker.

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the lightning strike notification system which performs the determination of the work implementation possibility at the time of a lightning strike quickly and correctly, and alert | reports the instruction information corresponding to a determination result to a worker.

It is a block diagram which shows the structure of the lightning strike alerting system 1 in one Embodiment of this invention. It is explanatory drawing which shows the position database used with the lightning strike alerting system 1 in one Embodiment of this invention. It is explanatory drawing which shows the alerting | reporting information database used with the lightning strike alerting system 1 in one Embodiment of this invention. It is explanatory drawing which shows the work level determination table used with the lightning strike alerting system 1 in one Embodiment of this invention. It is explanatory drawing which shows typically the information memorize | stored in the small area designation | designated information storage part 16a of RAM16. It is a flowchart which shows the process performed with the lightning strike alerting system 1 in one Embodiment of this invention. 11 is an explanatory diagram illustrating a display example of the display unit 20. FIG. 11 is an explanatory diagram illustrating a display example of the display unit 20. FIG. 11 is an explanatory diagram illustrating a display example of the display unit 20. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a block diagram showing a configuration of a lightning strike notification system 1 according to an embodiment of the present invention. The lightning strike notification system 1 includes a lightning strike information alert device 10, a lightning strike location device 50, and a central control device 70.

  First, the existing lightning strike position locating device 50 and the centralized control device 70 will be described.

  The lightning strike location device 50 is called Evaluation of the Accuracy of the Lighting Location System (abbreviated as LLS), and includes a plurality of electromagnetic wave detection sensors 52 that measure electromagnetic waves generated during lightning strikes, and each electromagnetic wave detection sensor 52. A position analysis unit 54 that collects the measurement data to be sent, performs position location calculation, and creates lightning strike position data. Since the electromagnetic wave detection sensor 52 is disposed so as to surround the observation area of the lightning strike position, at least three electromagnetic wave detection sensors are required.

  Specifically, when there is a lightning strike in the observation area, electromagnetic waves spread from the lightning strike point. The electromagnetic waves are detected by the plurality of electromagnetic wave detection sensors 52, and the reception time of the electromagnetic waves, the intensity of the electromagnetic waves, and the like are measured. Data measured by the electromagnetic wave detection sensor 52 is transmitted to the position analysis unit 54 via a communication line. The position analysis unit 54 calculates a lightning strike position by using the fact that a sensor farther from the lightning strike position catches the radio wave, and creates lightning strike position information by associating the lightning strike position with the lightning strike time. Lightning strike position is represented by latitude and longitude. Lightning strike location information created by the lightning strike location device 50 is distributed to the lightning strike information notification device 10.

  The centralized control device 70 performs collective monitoring and remote operation of a plurality of substations 60. For example, from each substation 60, the state of various facilities in the substation 60 with respect to the centralized control device 70, for example, the open / close state of various circuit breakers and switches, the amount of power for each line, the bus of the substation 60, V0 information and the like are transmitted. Here, the V0 information indicates an induced voltage generated in the distribution line when a lightning discharge falls to the ground or discharges between clouds when a lightning occurs. A sensor (not shown) for detecting the induced voltage is installed on the 6 kV bus of the substation.

  Moreover, when performing a power failure operation, the centralized control device 70 remotely operates various facilities in the substation 60, for example, by opening and closing various circuit breakers and switches in the substation. Power outage operation, etc. for the section is carried out.

  In addition, the central control device 70 distributes the V0 information of the buses of each substation 60 and the power failure work information to the lightning strike information notification device 10. In the power outage work information, information such as in-work information indicating that the power outage work is in progress, work schedule information indicating that it is before the power outage work, information of the power plant name, substation name and transmission line name during or scheduled to work. Is included.

  The lightning strike information notification device 10 determines the lightning strike location based on the lightning strike location information from the lightning strike location determination device 50 and the V0 information from the centralized control device 70 and displays it on a map. Various instructions in future work are notified to the worker. The lightning strike information notification device 10 includes a CPU 12, a ROM 14, a RAM 16, a telephone line communication unit 18, a display unit 20, and an input / output unit 22.

  The CPU 12 is a central processing unit that controls the entire lightning strike notification apparatus 10. The ROM 14 is composed of a nonvolatile memory, and stores a program for causing the CPU 12 to execute various functions, a database, a table, and the like that summarize various data necessary for processing. The RAM 16 is used as a work field for expanding data when the CPU 12 executes various processes. The telephone line communication unit 18 is connected to the telephone line, and performs communication between the lightning strike notification apparatus 10 and the portable terminal device possessed by the worker via the telephone line. The display unit 20 includes a liquid crystal display that displays an image. The input / output unit 22 is connected to the lightning strike location device 50 and the central control device 70 by wire or wireless so as to be able to transmit and receive.

  In the ROM 14, the CPU 12 includes a substation lightning determination unit 12a, a work area specifying unit 12b, a first adjacent area specifying unit 12c, a second adjacent area specifying unit 12d, a first lightning position specifying unit 12e, and a second lightning position specifying unit. 12f, a work risk determination unit 12g, a work level determination unit 12h, a notification content search unit 12i, a display control unit 12j, and a program for serving as a communication control unit 12k are stored.

  The ROM 14 stores a position database 14a, a notification information database 14b, and a work level determination table 14c. The position database 14a divides a predetermined area for monitoring the lightning strike position in the observation area of the lightning strike location locating device 50 into a plurality of small areas in a matrix, and each small area includes latitude and longitude information indicating the range of the small area. , Information indicating which substation belongs to the distribution area, information on distribution-related equipment in the small area, for example, substation name, utility pole name, transmission line name, etc. are stored in association with each other.

  The notification information database 14b stores notification information notified to the worker in association with various search conditions. Details will be described later.

  The RAM 16 is set with a small area designation information storage unit 16a that stores designation information associated with each of the small areas arranged in a matrix. The designation information will be described in detail later. Whether the small area is designated as the first lightning strike position, designated as the second lightning strike position, designated as the work area, designated as the first adjacent area, This is information indicating whether it is designated as an adjacent area. The ROM 14 stores a program for causing the CPU 12 to function so as to create the small area designation information storage unit 16a shown in FIG.

Next, functions of the CPU 12 will be described.
The substation lightning determination unit 12a monitors the V0 information of the bus of the substation 60 output from the central control device 70, and determines whether or not the voltage value of the V0 information is equal to or greater than a predetermined reference value. When the voltage value of the V0 information is equal to or higher than the reference value, it is determined that a lightning strike has occurred in the distribution area of the substation 60. The substation lightning determination unit 12a performs this determination a plurality of times (for example, six times every 10 seconds) per unit time (for example, 60 seconds), and counts the number of occurrences of V0 information within the unit time, that is, the number of lightning strikes. The number of occurrences of V0 information is set by setting a V0 information storage area in which the presence or absence of V0 information is stored in the RAM 16 in correspondence with each substation, and the presence or absence of V0 information is stored in this V0 information storage area. Counting is possible by following.

  Specifically, for example, six areas of V0 information (0) to (6) are set as the V0 information storage area in the RAM 16. Then, for example, the substation lightning determination unit 12a determines the presence / absence of V0 information for 10 seconds, and stores the information indicating the presence of the V0 information in the V0 information (0). If there is no V0 information, information indicating absence is stored in V0 information (0). Further, after 10 seconds, the information of V0 information (0) to (5) is moved to V0 information (1) to (6), and information indicating the presence or absence of V0 information in the next 10 seconds is stored in V0 information (0). To do. When the information of V0 information (0) to (5) is moved to V0 information (1) to (6), the previously stored V0 information (6) is overwritten with V0 information (5). Therefore, it will be erased. In the V0 information (1) to (6) in which the presence / absence of the V0 information is stored in this way, if there is a storage area in which information indicating existence exists, there is a lightning strike in the distribution area of the substation 60. In the V0 information (1) to (6), the number of storage areas in which information indicating existence is stored is the number of lightning strikes in 60 seconds.

  The work area specifying unit 12b refers to the position database 14a and extracts a small area corresponding to the power outage work information transmitted from the central control device 70. Furthermore, the work area specifying unit 12b stores information for specifying a work area in the storage area of the small area designation information storage unit 16a corresponding to the small area extracted from the position database 14a. In addition to this information, information specifying whether the work area is working or not is stored.

  The first adjacent area specifying unit 12c refers to the position database 14a, and extracts a small area located around the work area specified by the work area specifying unit 12b. Furthermore, the 1st adjacent area specific | specification part 12c memorize | stores the information which specifies that it is a 1st adjacent area in the storage area in the small area designation | designated information storage part 16a corresponding to the small area extracted from the position database 14a.

  The second adjacent area specifying unit 12d refers to the position database 14a and extracts a small area located around the work area specified by the first adjacent area specifying unit 12c. Further, the second adjacent area specifying unit 12d stores information specifying the second adjacent area in the storage area of the small area designation information storage unit 16a corresponding to the small area extracted from the position database 14a.

  The first lightning strike position specifying unit 12e refers to the position database 14a, and extracts a small area corresponding to the lightning strike position distributed from the lightning strike position locating device 50. Specifically, a small area in a range including the latitude and longitude of the lightning strike position distributed from the lightning strike location locating device 50 is extracted. Furthermore, the 1st lightning strike position specific | specification part 12e memorize | stores the information which pinpoints that it is a 1st lightning strike position in the storage area of the small area designation | designated information storage part 16a corresponding to the small area extracted from the position database 14a.

  The second lightning strike position specifying unit 12f reads the V0 information storage area in the RAM 16, and specifies the substation 60 corresponding to the V0 information storage area in which “present” is stored in the V0 information (1) to (6). Further, the second lightning strike position specifying unit 12f refers to the position database 14a and extracts a small area corresponding to the distribution area of the substation 60. In addition, the second lightning strike position specifying unit 12f is a distribution area in which a lightning strike has occurred in the storage area corresponding to the small area extracted from the position database 14a in the small area designation information storage unit 16a of the RAM 16, that is, the second lightning strike position. The information for specifying is stored.

  Based on the information stored in the small area designation information storage unit 16a of the RAM 16, the work risk determination unit 12g is identified as the first lightning strike position by the first lightning strike position identifying unit 12e and the second lightning strike position identifying unit 12f. 2. A small area identified as a lightning strike position is extracted, and it is determined whether the small area corresponds to a work area, a first adjacent area, a second adjacent area, or another area that does not belong to these areas. Here, since the work risk is lower when the lightning strike position is far from the work position, the lightning strike to the work area has the highest work risk and belongs to the first adjacent area, the second adjacent area, and these areas. The risk of work decreases in the order of lightning strikes to other areas that are not. Thus, as described above, it is determined whether the small area specified as the lightning strike position corresponds to the work area, the first adjacent area, the second adjacent area, or another area that does not belong to these areas. It is the same as determining the level of work risk.

  The work level determination unit 12h refers to the work level determination table 14c and determines the level of the power outage work distributed from the central control device 70.

  The notification content search unit 12i notifies the corresponding notification content using the information stored in the small area designation information storage unit 16a of the RAM 16, the determination result of the work risk determination unit 12g, and the determination result of the work level determination unit 12h as search conditions. Search from the information database 14b.

  The display control unit 12j performs control for creating an image to be displayed on the display unit 20. Specifically, based on the information stored in the small area designation information storage unit 16a of the RAM 16 and the determination result of the work risk determination unit 12g, the work area, the first adjacent area, the second on the map of the predetermined area. An image in which a small area where lightning strikes in the adjacent area and other areas is color-coded is created.

  The communication control unit 12k controls the telephone line communication unit 18 to perform control for transmitting voice information and image information to the mobile terminal device possessed by the worker performing the power outage work. Specifically, the content searched by the notification content search unit 12i is transmitted as audio information or image information to a predetermined portable terminal device. As described above, the notification content search unit 12i and the communication control unit 12k correspond to a notification unit.

  FIG. 2 is an explanatory diagram showing the contents of the position database 14a. For example, as shown in FIG. 7, the position database 14a includes latitude / longitude information indicating ranges of a plurality of small areas obtained by dividing a predetermined area into a matrix, and various pieces of facility information installed in each small area. The small area numbers assigned to the small areas are associated with each other. The facility information includes the utility pole name, transmission line name, substation name in the distribution area, and the like.

  FIG. 3 is an explanatory diagram showing the contents of the notification information database 14b. The notification information database 14b associates the lightning strike position, work status, work level, number of lightning strikes, notification content on the management side, and notification content on the work site side. The lightning strike position is classified into items of a work area, a first adjacent area, and a second adjacent area. The work status is classified into items before and after work. The work level is classified into items of levels 1 to 4. The number of lightning strikes is classified according to the number of lightning strikes, which is a criterion. Each item of lightning strike is associated with two items of work status, each item of work status is associated with four items of work level, and each item of work level is associated with the number of lightning strikes. The number of lightning strikes is associated with the content of notification to the management side worker and the content of notification to the work site side worker. That is, when a lightning strike occurs in a predetermined area, the notification content is determined according to the lightning strike position, the work situation, the work level, and the number of lightning strikes.

  FIG. 4 is an explanatory diagram showing the contents of the work level determination table 14c. In the work level determination table 14c, a work name and a work level are associated with each other. The work level indicates the importance of the work specified by the work name.

  FIG. 5 is an explanatory diagram schematically showing the recording area of the small area designation information storage unit 16a corresponding to a predetermined area on an actual map. As an example, as shown in FIG. 7, it is assumed that a predetermined area is divided into a matrix and 116 small areas are formed. These small areas will be referred to as small area E1A to small area E8L. The small area is actually 5 km × 5 km in size.

  Specifically, the work area specifying unit 12b extracted the small areas 4D to 4I and 5F as the small areas where the power transmission lines, utility poles, and substations distributed as the power failure work information from the central control device 70 are deployed. In this case, information for identifying the work area is stored in the storage areas corresponding to the small areas 4D to 4I and 5F in the small area designation information storage unit 16a. In FIG. 4, the small area in which “work 1” is written corresponds to the work area, the work level is 1, and the work is being identified. If it corresponds to the work area, the work level is 2, and before work, “Before work 2” is entered.

  In addition, the first adjacent area specifying unit 12c is provided in the small area designation information storage unit 16a corresponding to the small areas 3C to 3J, 4C, 4J, 5C to 5E, 5G to 5J, and 6D to 6G located around the work area. Information for identifying the first adjacent area is stored in the storage area. In FIG. 5, a small area in which “adjacent (1)” is entered is specified as the first adjacent area.

  Moreover, the 2nd adjacent area specific | specification part 12d is small area 2B-2K, 3B, 3K, 4B, 4K, 5B, 5K, 6B-6D, 6H-6K, 7D located around the 1st adjacent area specific | specification part 12c. The information which specifies that it is a 2nd adjacent area is memorize | stored in the storage area in the small area designation | designated information storage part 16a corresponding to -7H. In FIG. 5, the small area in which “adjacent (2)” is entered is specified as the second adjacent area.

Next, processing by the lightning strike information notification device 10 will be described with reference to FIG.
First, as shown in step S1 of FIG. 6, the CPU 12 obtains a small area number for implementing the work area from the storage area from the small area designation information storage unit 16a.

  Next, as shown in step S2, the CPU 12 specifies a work area based on the small area number acquired in step S1. Further, the first adjacent area specifying unit 12c specifies the first adjacent area based on the work area, and the second adjacent area specifying unit 12d specifies the second adjacent area based on the first adjacent area.

  Next, as shown in step S3, the CPU 12 acquires a small area corresponding to the first lightning strike position from the small area designation information storage unit 16a. In FIG. 5, a small area in which “fall (1)” is entered is specified as the first lightning strike position.

  Next, as shown in step S4, the CPU 12 acquires a small area corresponding to the second lightning strike position from the small area designation information storage unit 16a. In FIG. 5, a small area in which “lightning strike (2)” is entered is specified as the second lightning strike position. Note that the notation “lightning strike (2) 2” in FIG. 5 indicates that the small area corresponds to the second lightning strike position and that V0 information has been generated twice.

  Next, in step S5, the CPU 12 extracts all the small areas identified as the first lightning strike position and the second lightning strike position from the small area designation information storage unit 16a, and selects the small areas in the map displayed on the display unit 20. Color designation information for color classification is stored in a predetermined storage area of the RAM 16. Here, the small area at the first lightning strike position and the small area at the second lightning strike position have different colors. Further, the small area specified as the first lightning strike position and the second lightning strike position has a different color from the small area of the first lightning strike position and the small area of the second lightning strike position.

  Next, in step S6, the CPU 12 extracts all the small areas identified as the first lightning strike position and the second lightning strike position from the small area designation information storage unit 16a, and there is a small area belonging to the second adjacent area. If it is determined, the process proceeds to step S7, and if not, the process proceeds to step S8.

  In step S7, the CPU 12 refers to the notification information database 14b, and notifies the work status, work level, and number of lightning strikes associated with the small area determined to belong to the second adjacent area in step S6. The contents are stored in a storage area of the RAM 16 in which information transmitted to the worker's mobile terminal is stored. Further, the CPU 12 (display control unit 12j) uses the color designation information for image display of the display unit 20 so that the small areas determined to belong to the second adjacent area in step S6 are color-coded on the map. Store in the storage area of the RAM 16. If this process ends, the process moves to step S8.

  Next, in step S8, the CPU 12 extracts all the small areas identified as the first lightning strike position and the second lightning strike position from the small area designation information storage unit 16a, and this small area belongs to the first adjacent area. If it is determined that it belongs, the process proceeds to step S9, and if it is not determined that it belongs to the first adjacent area, the process proceeds to step S10.

  In step S9, the CPU 12 refers to the notification information database 14b, and notifies the work status, work level, and number of lightning strikes associated with the small area determined to belong to the first adjacent area in step S8. The contents are stored in a storage area of the RAM 16 in which information transmitted to the worker's mobile terminal is stored. In this case, the notification content stored in the RAM 16 in step S7 is updated. Further, the CPU 12 (display control unit 12j) uses the color designation information for image display of the display unit 20 so that the small areas determined to belong to the first adjacent area in step S8 are color-coded on the map. Store in the storage area of the RAM 16. If this process ends, the process moves to step S10.

  Next, in step S10, the CPU 12 extracts all the small areas identified as the first lightning strike position and the second lightning strike position from the small area designation information storage unit 16a, and determines that there is a small area belonging to the work area. If so, the process proceeds to step S11. If not, the process proceeds to step S12.

  In step S11, the CPU 12 refers to the notification information database 14b, and notifies the notification content corresponding to the work status, the work level, and the number of lightning strikes associated with the small area determined to belong to the work area in step S10. The information transmitted to the worker's portable terminal is stored in the storage area of the RAM 16. In this case, the notification content stored in the RAM 16 in step S9 is updated. Further, the CPU 12 (display control unit 12j) uses the color designation information in the RAM 16 for displaying the image on the display unit 20 so that the small area determined to belong to the work area in step S10 is color-coded on the map. Store in the storage area. If this process ends, the process moves to step S12.

  In step S <b> 12, the CPU 12 performs a process of creating map information in which small areas on the map are color-coded based on the color designation information stored in the RAM 16 and displaying the map information on the display unit 20. Furthermore, in step S <b> 12, the CPU 12 performs a process of displaying the notification content on the work place side stored in the RAM 16 on the display unit 20.

  In step S13, CPU12 performs the process which transmits the alerting | reporting content by the side of work memorize | stored in RAM16 to a worker's portable terminal device.

  The process shown in FIG. 6 is executed every predetermined time (for example, every 30 seconds). For this reason, the map information displayed on the display unit 20 is updated every predetermined time.

  Next, a map display example of the lightning strike position on the system side and a notification example to the worker side will be described with reference to FIGS. 5 and 7 to 9.

  In the small area designation information storage unit 16a shown in FIG. 5, the small area specified as the first lightning position by the first lightning position specifying unit 12e and specified as the second lightning position by the second lightning position specifying unit 12f is: Only the small area 2C.

  In this case, in the area where the color designation information in the RAM 16 is stored, the color designation information is stored in a storage area corresponding to the small area 2C and the work area. For this reason, as shown in FIG. 7, the small area 2C and the work area are displayed on the display unit 20 in different colors. The manager on the management side recognizes that a lightning strike has occurred within a 10 km radius from the work area by visually recognizing the map shown in FIG.

  The small area 2C corresponds to the second adjacent area with respect to the work area, and the work level of the work area is “1”. In FIG. 5, for example, information indicating that “working” is associated with the small area 2 </ b> C. Therefore, as shown in FIG. The information “2 lightning has occurred in the adjacent area” is notified by image output and sound output. In addition, as shown in Fig. 3, the worker on the work site side is informed that "A lightning has occurred in the second adjacent area near the work site. There is a possibility of requesting emergency recovery." It is notified by an image output and an audio output in the portable terminal device.

  FIG. 8 shows a map display example of the display unit 20 when a thundercloud enters the work area, and shows a case where a lightning strike occurs in a part of the work area, the first adjacent area, and the second adjacent area. . The work area, the first adjacent area, the second adjacent area, and the small areas where lightning strikes outside the second adjacent area are color-coded so as to be visible. According to this embodiment, the work area, the first adjacent area, and the second adjacent area have the same color system, and the work area is the darkest, the first adjacent area, the second adjacent area. , And are set so as to become thinner in the order outside the second adjacent area. In addition, the priority order is set for notification of lightning strike information to workers on the management side and workers in the work area. Lightning strikes in the work area, lightning strikes in the first adjacent area, lightning strikes in the second adjacent area. It is broadcast in the order. For example, as shown in FIG. 8, when there is a lightning strike in a part of the work area, the first adjacent area, and the second adjacent area, the notification content of the work area is sent to the management side worker and the work area worker. Informed. In other words, in the case of FIG. 8, before the work, the management worker is informed that “lightning is occurring in the area including the planned work place”, and the work place worker “ The work is suspended. " If the work is in progress, the manager on the management side is informed that “lightning is occurring in the area including the work place.” And the worker on the work place is informed that “Please perform emergency recovery.” Is done.

  FIG. 9 shows a case in which lightning strikes all over the work area, the first adjacent area, and the second adjacent area. When lightning strikes all over the work area, the first adjacent area, and the second adjacent area, the first adjacent area and the second adjacent area are displayed around the work area.

  According to the present embodiment configured as described above, a rough lightning strike position obtained from the lightning strike location device 50 can be obtained. All lightning strikes occurring in the power supply area (distribution area) around the substation 60 can be grasped from the voltage information of the buses of the plurality of substations 60. By identifying the lightning strike position based on the information on these two lightning strike positions, it is possible to more accurately grasp the position where the lightning strike occurred. If the specified lightning strike position is far from the work area, the work risk level is determined to be low, and if it is close, the work risk level is determined to be high. It is possible to automatically provide a more accurate instruction to the worker by setting notification information related to the above. In this way, it is possible to quickly and accurately determine whether work can be performed when a lightning strike occurs, and to notify instruction information corresponding to the determination result.

  Further, according to the present embodiment, by dividing the peripheral area of the work area into the first adjacent area and the second adjacent area according to the distance from the work area, the work risk level is set to a high work area, The first adjacent area in the level and the second adjacent area in the lower level can be associated with each other. This makes it possible to reduce items in the notification information database.

  In addition, according to the present embodiment, for example, a power failure operation is performed by adding a condition that indicates whether the work risk level is before or during a power outage operation or a condition of a plurality of work levels indicating the importance of the work content to the work risk level determination. If the work level is high in front, it is possible to send a detailed instruction to stop the work early if the lightning strike is in the first adjacent area. This makes it possible to provide more accurate instructions to the worker.

  As mentioned above, although embodiment of this invention was described, embodiment of this invention is not restricted to embodiment mentioned above. For example, in the above-described embodiment, the map display of the lightning position on the display unit 20 color-codes the small areas that are the first lightning position and the second lightning position, but the first lightning position and the second lightning position. Both may be displayed in different colors in colors different from the colors of the work area, the first adjacent area, and the second adjacent area.

  When there are a plurality of work schedules on the same work day, a work area corresponding to each work schedule may be set, and the map display may be switched for each work area.

1 Lightning strike notification system 10 Lightning strike information notification device 12 CPU
12a Substation lightning determination unit 12b Work area specifying unit 12c First adjacent area specifying unit 12d Second adjacent area specifying unit 12e First lightning position specifying unit 12f Second lightning position specifying unit 12g Work risk determining unit 12h Work level determining unit 12i Notification content search unit 12j Display control unit 12k Communication control unit 14 ROM
14a Position database 14b Notification information database 14c Work level determination table 16 RAM
16a Small area designation information storage unit 18 Telephone line communication unit 20 Display unit 22 Input / output unit 50 Lightning strike location device 52 Electromagnetic wave detection sensor 54 Location analysis unit 60 Substation 70 Centralized control device

Claims (4)

A plurality of sensors arranged around the observation area, having a plurality of sensors for detecting electromagnetic waves generated by lightning strikes, and a lightning strike position locating device for locating a rough lightning strike position in the observation area based on the measurement results of the sensors,
A centralized control device that obtains voltage information of buses of a plurality of substations and monitors a plurality of substations at the same time, and executes an operation of powering out the substations and transmission lines,
Determining lightning information related to lightning to be notified to a worker based on information acquired from the lightning position locating device and the centralized control device, and a lightning strike information notification device for notifying a worker;
The lightning strike information notification device
A predetermined area in the observation area is divided into a plurality of small areas arranged in a matrix, the small area, range information defining the range of the small area, and a distribution area supplied with power by the substation, A location database that is stored in association with each other,
Monitoring the voltage of the bus of the substation acquired from the centralized control device, and determining whether or not a dielectric voltage due to lightning has occurred on the bus, a substation lightning determination unit;
With reference to the position database, extract a small area including a substation and a power transmission line that perform a power failure work acquired from the centralized control device, a work area specifying unit that specifies the extracted small area as a work area,
Referring to range information in the position database, extracting a small area corresponding to the lightning strike position acquired from the lightning strike position locating device, and identifying the extracted lightning area as a first lightning strike position,
When the substation lightning determination unit determines that a dielectric voltage due to lightning has occurred, a small area included in the distribution area of the substation of the bus where the dielectric voltage is generated with reference to the distribution area in the position database And a second lightning position specifying unit that specifies the extracted small area as the second lightning position,
A work risk determination unit that determines a work risk level based on a distance between the work area and a small area specified in common in the first lightning position specifying unit and the second lightning position specifying unit;
A notification information database that associates the level of the work risk with notification information to notify the worker;
A notification content search unit that searches the notification information database for the notification information, using the level of the work risk determined by the operation risk determination unit as a search condition;
A notification unit that notifies the worker of the notification information searched by the notification content search unit;
A display unit for displaying various types of information;
A display control unit that performs control for highlighting the small area specified by the first lightning strike position specifying unit and the second lightning strike position specifying unit on the display unit;
The display control unit displays the lightning strike notification characterized by displaying the small areas specified by the first lightning strike position specifying unit and the second lightning strike position specifying unit in different manners according to the distance from the work area. system. The lightning strike information notification device
A first adjacent area specifying unit that specifies a small area adjacent to the work area as a first adjacent area;
A second adjacent area specifying unit that specifies a small area adjacent to the first adjacent area as a second adjacent area;
The notification information database includes items of the work area, the first adjacent area, and the second adjacent area as the work risk level, and the work area, the first adjacent area, and the second adjacent area, respectively. The notification information is associated,
In the work risk determination unit, any one of the work area, the first adjacent area, and the second adjacent area is a small area that is commonly specified in the first lightning position specifying unit and the second lightning position specifying unit. To determine whether
The notification content search unit searches the notification information database for the notification information using an area determined to be applicable in the work risk determination unit as a search condition,
The display control unit displays the small areas specified by the first lightning position specifying unit and the second lightning position specifying unit in different manners in the work area, the first adjacent area, and the second adjacent area, respectively. The lightning strike notification system according to claim 1, characterized in that: In the notification information database, items before the power outage work and during the power outage work are associated with the items in the work area, the first adjacent area, and the second adjacent area, respectively, and further, before the power outage work and the power outage work The notification information to notify the worker is associated with the item inside,
The notification content search unit further includes, in a search condition, whether it is before or during a power failure operation acquired from the centralized control device, and searches the notification information database for the notification information that satisfies each search condition. The lightning strike notification system according to claim 2. The lightning strike information notification device
A work level table in which work contents of a power outage work and a plurality of work levels indicating the importance of the work contents are associated;
A work level determination unit that refers to the work level table and determines the work level of the power outage work acquired from the central control device;
In the notification information database, the items of the work level are associated with items before and after the power outage work, and further, the notification information for informing the worker is associated with the work level, respectively.
The lightning strike notification system according to claim 3, wherein the notification content search unit further includes the work level determined by the work level determination unit in a search condition, and searches the notification information database for the notification information.

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