JP2018085277A - Lightning situation monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To autonomously notify a centralized management place of a lightning strike situation in real time. SOLUTION: The lightning strike situation monitoring device is inputted with a coil for inputting a lightning current generated by a lightning strike to a lightning strike suppressing type lightning rod arranged at a high place outside a protected object in geographically dispersed protection target places; A measuring instrument for generating lightning current measurement data in a multiple bit representation according to the magnitude of the lightning current; a first wireless communication device for transmitting the generated lightning current measurement data as a radio frequency signal; input from a coil It is charged with a lightning current and provided with a power source for operating the measuring device and the first wireless communication device during the lifetime of the charging capacity. The lightning strike condition monitoring device includes a second wireless communication device that receives the lightning current measurement data represented in multiple bits by direct wireless communication with the first wireless communication device; A wire communication device for transmitting a lightning strike situation monitoring signal generated by adding identification information indicating a location to a centralized management location via a communication network. [Selection diagram] Figure 2

Description

  The present invention relates to a lightning situation monitoring system, and more particularly to a lightning situation monitoring apparatus and a lightning situation monitoring method.

  Along with the transition of lightning protection concept, lightning strikes are controlled by lightning rods that are sent to the ground by receiving lightning strikers (also called Franklin rods). In addition, lightning suppression type lightning rods that protect protected objects such as equipment are changing.

  As a technology for suppressing lightning strikes, a deionization capacity type lightning rod (PDCE) has been realized and exhibits its effect. In other words, this deionization capacity type lightning rod (which may be simply referred to as PDCE) prevents the occurrence of upward streamer (greeting discharge) from the thundercloud toward the step leader. Lightning phenomenon is unlikely to occur on protected objects such as buildings attached to.

  For further details of the PDCE, it is possible to refer to a lightning suppression type lightning arrester proposed by the applicant, for example, Patent Document 1.

Japanese Patent No. 5,780,552

  Currently, PDCEs located at a number of geographically discrete locations to be protected (for example, all over Japan), that is, lightning strikes to lightning arrester type lightning arresters, are monitored, and lightning strikes are collected at a centralized location. There is a further need to make it possible.

  By the way, in recent years, a technique called IoT (Internet of Things) has attracted attention. This IoT is a technique for realizing the utilization of data generated from an object when every object (thing) becomes accessible to the Internet having an OPEN characteristic.

  The Applicant has focused on addressing the further demands described above, preferably by utilizing lightning-suppressed lightning arresters that have been confirmed to be effective against lightning, preferably in conjunction with IoT technology.

  An object of the present invention is to provide a technique for monitoring lightning strikes to lightning suppression type lightning arresters arranged in a geographically dispersed manner and capable of autonomously reporting lightning strike situations to a centralized management location in real time.

  In order to solve the above-described problems, a lightning strike monitoring apparatus according to an aspect of the present invention is a lightning generated by a lightning strike to a lightning-suppressing lightning arrester arranged at an external high position of a protected object in a geographically discrete protection target location. A coil for inputting current; a measuring device for generating lightning current measurement data expressed in multiple bits according to the magnitude of the lightning current input from the coil; and the lightning current measurement data generated by the measuring device wirelessly A first wireless communication device that transmits as a frequency signal; a power source that is charged with a lightning current input from the coil and that operates the measuring device and the first wireless communication device during the lifetime of the charging capacity; Is provided. The lightning strike monitoring apparatus includes: a second wireless communication device that receives the lightning current measurement data expressed in multiple bits by direct wireless communication with the first wireless communication device; and received by the second wireless communication device. A wired communication device that transmits a lightning strike monitoring signal generated by adding at least identification information indicating a protection target location to the lightning current measurement data to be sent to a centralized management location via a communication network; The measuring device, the first wireless communication device, and the power source are disposed in the lightning suppression lightning rod, and the second wireless communication device and the wired communication device are disposed in the protected body. .

  In another aspect of the present invention, a method for monitoring a lightning strike inputs a lightning current generated by a lightning strike to a lightning-suppressing lightning arrester disposed at an external height of a protected object at geographically discrete locations to be protected; A lightning current measurement data of a plurality of bits expressed according to the magnitude of the lightning current input from the coil is generated by a measuring device; the lightning current measurement data generated by the measuring device is used as a radio frequency signal as a first radio signal. Transmitting from the communicator; the measuring device and the first wireless communicator are operated during the lifetime of the charge capacity by the power source charged with the lightning current input from the coil. In the lightning strike monitoring method, the lightning current measurement data expressed in multiple bits is received by the second wireless communication device by direct wireless communication with the first wireless communication device; and received by the second wireless communication device. A lightning state monitoring signal generated by adding at least identification information indicating a protection target location to the lightning current measurement data to be transmitted from a wired communication device to a centralized management location via a communication network; the coil, A measuring device, the first wireless communication device, and the power source are disposed on the lightning suppression type lightning rod, and the second wireless communication device and the wired communication device are disposed inside the protected object. This is a method of monitoring lightning strikes by a monitoring device.

  In each aspect, the power source is a capacitor power source including a capacitor charged with a lightning current. The capacitor power supply further includes a changeover switch for switching to an external power supply outside the lifetime of the charging capacity due to lightning current.

  In each aspect, the coil, the measuring device, the first wireless communication device, and the power source are disposed so as to be retrofitted to a support member that constitutes the lightning-reducing lightning arrester. The coil is a Rogowski coil that inputs a lightning current flowing through a support member constituting the lightning suppression lightning rod to the measuring device and the power source. The communication network is the Internet that enables application of IoT technology.

  In each aspect, the measuring device transmits a health check inquiry signal for survival confirmation transmitted from the centralized management location by the first wireless communication device via the wired communication device and the second wireless communication device. If received, the health check response data in the multi-bit representation is generated.

  In each aspect, the first wireless communication device transmits the health check response data generated by the measuring device as a radio frequency signal, and the second wireless communication device is connected to the first wireless communication device. Receiving the health check response data in the multi-bit representation by direct wireless communication, and the wired communication device includes at least identification information indicating a protection target portion in the health check response data received by the second wireless communication device. The added health check response signal is generated and transmitted to the centralized management location via the communication network.

  In each aspect, current time information is further added to the lightning strike monitoring signal and the health check response signal.

  According to the disclosed technology, it is possible to monitor lightning strikes to lightning arresting lightning rods that are geographically discretely arranged, and to collect lightning strikes in real time at a centralized management location.

  Other objects, features and advantages will become apparent upon reading the detailed description set forth below when taken in conjunction with the drawings and the appended claims.

The figure for demonstrating the outline | summary of the lightning strike situation monitoring system of one embodiment. The figure for demonstrating the detail of the lightning strike situation monitoring system of one Embodiment. The figure for demonstrating lightning current measurement data. The figure for demonstrating a lightning state monitoring signal. The figure for demonstrating a health check response signal. The figure for demonstrating a health check inquiry signal. The sequence chart for demonstrating the lightning strike monitoring process in the lightning strike monitoring system of one embodiment. The sequence chart for demonstrating the health check process in the lightning strike monitoring system of one embodiment.

  Hereinafter, further detailed description will be given with reference to the accompanying drawings. The drawings show preferred embodiments. However, it can be implemented in many different forms and is not limited to the embodiments described herein.

[Outline of Lightning Situation Monitoring System]
Referring to FIG. 1 showing a system in one embodiment, a lightning strike monitoring system 1 uses a lightning suppression type lightning rod that has been confirmed to be effective against lightning strikes, and is linked with IoT technology, for example, all over Japan. It is a system that makes it possible to collect lightning conditions from geographically discrete protected locations in real time.

  The lightning strike monitoring system 1 includes a lightning strike suppression lightning rod 2, a lightning strike monitoring device 3, a repeater 4, a communication network 5, and a lightning strike remote monitoring center 6. In the lightning strike monitoring system 1, the lightning strike suppression type lightning rod 2, the lightning strike monitoring device 3, and the repeater 4 are respectively arranged at geographically discrete protection target locations.

  The lightning suppression type lightning rod 2 is a lightning rod that protects a protected object such as a building, a building, and equipment from lightning damage, and is a deionization capacity type lightning rod such as the lightning suppression type lightning arrester disclosed in Patent Document 1. (PDCE) is applicable. The lightning-suppressing lightning rod 2 is usually disposed at an external height of the protected object in geographically discrete protection target locations.

  The lightning strike monitoring device 3 is disposed so as to be retrofitted on a support member (support tube) 21 constituting the lightning strike suppression lightning rod 2, and has a cylindrical shape such as a cylinder or a square tube. This lightning strike monitoring device 3 monitors the lightning strike to the lightning strike suppression type lightning rod 2 and details the lightning strike later in order to autonomously notify the lightning strike remote monitoring center 6 as a centralized management location in real time. As described above, it has components for performing a lightning current measurement function, a wireless communication function, and a control function.

  The repeater 4 is arrange | positioned inside the to-be-protected body (for example, building) in a protection object location. The repeater 4 notifies the lightning situation remote monitoring center 6 through the communication network 5 by operating in cooperation with the lightning situation monitoring device 3 disposed at an external high place of the protected object. Further, as will be described later in detail, the repeater 4 performs a wireless communication function with the lightning strike monitoring device 3, a wired communication function with the lightning strike remote monitoring center 6 via the communication network 5, and a control function. It has the following components. The repeater 4 is also a constituent element of the lightning strike monitoring device 3.

  The communication network 5 is the Internet having an OPEN characteristic here because the lightning strike monitoring system 1 is premised on the application of the IoT technology. Although not shown, this communication network 5 is connected to a plurality of repeaters 4 at a number of geographically discrete protection points.

  The lightning strike remote monitoring center 6 is arranged at a centralized management location, and collects lightning strike status from a plurality of repeaters 4 at a number of geographically discrete protection locations via the communication network 5. Then, the lightning strike status remote monitoring center 6 executes a predetermined process for reducing damage caused by lightning strikes (particularly, discharge between clouds and ground). In addition, the lightning strike remote monitoring center 6 confirms the normality of the lightning strike monitoring device 3 together with the repeater 4 by performing health checks with the subordinate lightning strike monitoring device 3 and the repeater 4 in a predetermined cycle. To do.

[Details of lightning strike monitoring system]
Next, details of the lightning strike monitoring system 1 according to the embodiment shown in FIG. 1 will be described with reference to FIGS. 1 and 2 and related drawings.

(Lightning strike monitoring device)
The lightning strike monitoring device 3 in the lightning strike monitoring system 1 includes a Rogowski coil 31, a lightning current measuring device 32, a wireless communication device 33, an antenna 34, a control device 35, and a capacitor power source 36. The lightning strike monitoring device 3 has an auxiliary power source (external power source) 37.

  The Rogowski coil 31 in the lightning strike monitoring device 3 is an annular coil for measuring a large current flowing through a conductor in a non-contact manner, and flows through the support member 21 of the lightning strike suppression type lightning rod 2 by a lightning strike (discharge between clouds and ground). The lightning current is input to the lightning current measuring device 32. Strictly speaking, the lightning current input to the lightning current measuring device 32 is an induced current generated in the Rogowski coil 31 in accordance with the lightning current.

  The lightning current measuring device 32 measures the magnitude of the lightning current input from the Rogowski coil 31 (sometimes described as a lightning current level). That is, the lightning current measuring device 32 includes an analog / digital (A / D) converter 321 and a digital data generator 322, and the lightning current input from the Rogowski coil 31 based on the control of the control device 35. A 3-bit digital value corresponding to the size is generated as lightning current measurement data. The generated lightning current measurement data is input to the wireless communication device 33.

  More specifically, the lightning current measurement data generated by the lightning current measuring device 32 is a 3-bit digital value “000,001,010,... 110” as shown in FIG. In order to represent this, there are seven patterns.

  The digital data generator 322 has a digital value “000” when the lightning current level is 0 A to 1 kA, a digital value “001” when the lightning current level is more than 1 kA to 2 kA, and the lightning current level is 5 kA. When it is over 6 kA, it operates in cooperation with the A / D converter 321 so as to generate lightning current measurement data with a digital value “101” and when the lightning current level is over 6 kA, a digital value “110”. .

  The digital data generator 322, when the wireless communication device 33 receives the health check inquiry signal (survival confirmation inquiry signal) HCQ transmitted from the lightning strike remote monitoring center 6 via the repeater 4, In response to an instruction from the control device 35 that detects the check inquiry signal HCQ, a 3-bit digital value “111” is generated as health check response data (survival confirmation response data).

  The wireless communication device 33 in the lightning strike monitoring device 3 performs a predetermined modulation process or the like on the lightning current measurement data representing the magnitude of the lightning current generated by the lightning current measuring device 32 based on the control of the control device 35. And transmitted from the antenna 34 as a radio frequency signal. Here, the wireless communication device 33 is configured by a WiFi (Wireless Fidelity) transceiver. In the following description, the intervention of the antenna 34 is omitted unless it becomes unclear.

  The control device 35 includes a processor and a memory (not shown), and the processor executes a control program stored in the memory, thereby comprehensively controlling each component of the lightning strike monitoring device 3 to monitor the lightning strike situation. Perform processing or health check processing.

  The capacitor power source 36 is a power source including a capacitor charged with a lightning current input from the Rogowski coil 31 as an electricity storage device. For example, an electric double layer capacitor (EDLC) can be applied to the capacitor.

  The capacitor power source 36 is a main power source for operating the lightning current measuring device 32, the wireless communication device 33, and the control device 35 in the lightning strike monitoring device 3 during the lifetime of the charging capacity due to the lightning current. Therefore, the lightning strike monitoring device 3 does not require the auxiliary power source 37 as an external power source during the lifetime of the charging capacity due to the lightning current of the capacitor power source 36.

  As the auxiliary power source 37, a DC power source after AC / DC conversion from a commercial AC power source can be applied. When a predetermined voltage drop of the capacitor power source 36 is detected by the control device 35, the control device 35 operates the changeover switch SW for backing up by the auxiliary power source 37. The change-over switch SW is disposed on a power feeding path from the capacitor power source 36 to the lightning current measuring device 32, the wireless communication device 33, and the control device 35.

(Repeater)
As described above, in the lightning strike monitoring system 1, the lightning strike monitoring device 3 is disposed on the support member 21 of the lightning strike suppression type lightning rod 2, that is, the external height of the object to be protected (for example, a building) at the protection target location. Placed in place. On the other hand, the repeater 4 is arrange | positioned inside the to-be-protected body in a protection object location.

  The repeater 4 functions as a component of the lightning situation monitoring device 3 and operates in cooperation with the lightning situation monitoring device 3 to send a lightning situation or health check response to the lightning situation remote monitoring center 6 via the communication network 5. Notify For this purpose, the repeater 4 includes a wireless communication device 41, an antenna 42, a wired communication device 43, and a control device 44. In addition, the DC power supply after AC / DC conversion from commercial AC power supply is applied to the power supply (illustration omitted) of the repeater 4. FIG.

  The wireless communication device 41 in the repeater 4 is composed of a WiFi transceiver, and performs direct wireless communication with the wireless communication device 33 in the lightning strike monitoring device 3 to form a wireless LAN (Local Area Network). Here, in consideration of radio interference as well as the coverage range of a specific low power wireless (LPWA), the distance (transmission distance) between the wireless communication device 33 and the wireless communication device 41 is set within 100 m. .

  The wireless communication device 41 receives lightning current measurement data or health check response data transmitted from the wireless communication device 33 as a radio frequency signal via the antenna 42 based on the control of the control device 44, and performs predetermined demodulation. Processing is performed, and the lightning current measurement data of the baseband signal is input to the wired communication device 43. In the following description, the intervention of the antenna 42 is omitted unless it becomes unclear.

  Under the control of the control device 44, the wired communicator 43 is a lightning strike monitoring signal SSM including the input lightning current measurement data or a health check response signal (survival confirmation response signal) including the input health check response data. The HCR is notified to the lightning strike remote monitoring center 6 via the communication network 5.

  Specifically, when the lightning current measurement data is input to the wired communication device 43, the control device 44 displays the destination information (DS), the identification information (ID) indicating the protection target location, and the current time information (TM). A lightning state monitoring signal SSM (see FIG. 4) in the form of a packet added to the lightning current measurement data (LV) indicating the magnitude of the current (lightning current level) is generated and transmitted from the wired communication device 43.

  In addition, when the health check response data is input to the wired communication device 43, the control device 44 sends the destination information (DS), the identification information (ID) indicating the protection target location, and the current time information (TM) to the health check response. A packet-type health check response signal HCR (see FIG. 5) added to the data (HC) is generated and transmitted from the wired communication device 43.

  Here, the destination information (DS) included in the lightning strike monitoring signal SSM or the health check response signal HCR is an address (IP (Internet Protocol) address) for specifying the centralized management device 61 in the lightning strike remote monitoring center 6. is there. Further, the identification information (ID) indicating the location to be protected is an address (IP address) for identifying the lightning strike monitoring device 3 and the repeater 4. Furthermore, the current time information (TM) is applicable to either standard time or total seconds (integrated seconds).

  On the other hand, the control device 44 informs the health check inquiry flag (FL) that the wired communication device 43 has received the health check inquiry signal HCQ (see FIG. 6) in packet form transmitted from the lightning situation remote monitoring center 6. When detected based on this, the health check inquiry signal HCQ is input to the wireless communication device 41.

  Here, the identification information (ID) indicating the location to be protected as the destination information included in the health check inquiry signal HCQ is an address (IP address) for identifying the lightning strike monitoring device 3 and the repeater 4. The transmission source information (SA) is an address (IP address) for specifying the centralized management device 61 in the lightning strike remote monitoring center 6.

  Based on the control of the control device 44, the wireless communication device 41 performs a predetermined modulation process or the like on the health check inquiry signal HCQ input from the wired communication device 43 to the lightning strike monitoring device 3 as a radio frequency signal. Send. The control device 44 may reconfigure the health check inquiry signal HCQ including only the health check inquiry flag (FL) and transmit the health check inquiry signal HCQ from the wireless communication device 41 to the lightning strike monitoring device 3.

  The control device 44 includes a processor and a memory (not shown), and the processor executes a control program stored in the memory, thereby controlling each component of the repeater 4 in an integrated manner, Perform health check processing.

(Centralized management device)
The lightning strike remote monitoring center 6 disposed at a centralized management location in the lightning strike monitoring system 1 collects lightning strike statuses from a plurality of repeaters 4 at a number of geographically discrete protection locations via the communication network 5. For this purpose, a centralized management device 61 is provided.

  This centralized management device 61 analyzes lightning strike situations at a number of geographically discrete protection points based on the lightning strike monitoring signals SSM collected from a plurality of repeaters 4 to suppress damage caused by lightning strikes, etc. A predetermined process is executed.

  The centralized management device 61 in the lightning strike remote monitoring center 6 performs a health check with the subordinate lightning strike monitoring device 3 and the repeater 4 in a predetermined cycle, so that the lightning strike monitoring device 3 together with the repeater 4 is provided. Check the normality of. For this health check, the centralized management device 61 transmits / receives a health check inquiry signal HCQ and a health check response signal HCR to / from the subordinate lightning state monitoring device 3 and the repeater 4.

  The centralized management device 61 can be realized by, for example, a personal computer, has a processor and a memory (not shown), and the processor executes a control program stored in the memory, whereby a lightning strike state collecting process is performed. Or perform health check processing. Other components, that is, a communication function unit, an information display / input / designation function unit, an information holding function unit, and the like can be easily understood and implemented by those skilled in the art, and are not illustrated here. . Note that a DC power source after AC / DC conversion from a commercial AC power source is applied to the power source (not shown) of the centralized management device 61.

  The centralized management device 61 stores (stores) the results of the lightning strike collection process or the health check process in the information holding function unit for use.

(Lightning strike monitoring process)
FIG. 7 shows an example of a lightning strike monitoring process sequence in the above-described lightning strike monitoring system 1.

  In the lightning strike monitoring device 3, the control program is started when the power source (auxiliary power source 37) is turned on, and the control device 35 operates in cooperation with the lightning current measuring device 32, the wireless communication device 33, the capacitor power source 36, and the changeover switch SW. By doing so, the lightning strike monitoring process described below is performed.

  [Process S31] The control device 35 controls the changeover switch SW to be turned off. Thereby, the power supply path from the auxiliary power source 37 is reset.

  [Process S32] The control device 35 detects the output voltage of the capacitor power supply 36, thereby determining that the capacitor power supply 36 is in the lifetime of the charging capacity due to the lightning current.

  [Process S33] When the controller 35 determines that the capacitor power source 36 is in the duration of the charging capacity due to the lightning current, the controller 35 turns on the changeover switch SW. As a result, a power supply path from the capacitor power source 36 is set.

  [Process S34] The lightning current measuring device 32 generates lightning current measurement data expressed in a plurality of bits according to the magnitude of the lightning current.

  [Processing S35] The wireless communication device 33 transmits the generated lightning current measurement data as a radio frequency signal.

  When it is determined in the process S32 that the capacitor power source 36 is outside the lifetime of the charging capacity due to the lightning current, the process S34 and the process S35 are performed by power supply from the auxiliary power source 37.

  In the repeater 4, the control program is started when the power is turned on, and the control device 44 operates in cooperation with the wireless communication device 41 and the wired communication device 43, thereby performing a lightning strike monitoring process described below.

  [Processing S41] The wireless communication device 41 receives lightning current measurement data expressed in multiple bits.

  [Process S42] The control device 44 generates a lightning strike monitoring signal in which destination information, identification information indicating a protection target location, and current time information are added to lightning current measurement data.

  [Processing S43] The wired communication device 43 transmits the generated lightning strike monitoring signal.

  Further, in the centralized management device 61, a control program is started when power is turned on, and each component performs a linked operation, thereby performing a lightning strike monitoring process described below.

  [Process S61] A lightning strike monitoring signal transmitted from each repeater 4 is received.

  [Process S62] Perform a predetermined process based on the received lightning strike monitoring signal.

(Health check process)
FIG. 8 shows an example of a health check process sequence in the lightning strike monitoring system 1 described above.

  In the centralized management device 61, the control program is started when the power is turned on, and each component performs a cooperative operation, thereby performing the following health check processing.

  [Process S601] The arrival of a predetermined cycle is determined.

  [Processing S602] A health check inquiry signal is generated at a predetermined cycle.

  [Process S603] The generated health check inquiry signal is transmitted to the subordinate lightning state monitoring device 3 and the repeater 4.

  [Processing S604] The health check response signal transmitted from each repeater 4 is received.

  [Processing S605] Perform a predetermined process based on the received health check response signal.

  In the repeater 4, the control program is activated when the power is turned on, and the control device 44 operates in cooperation with the wireless communication device 41 and the wired communication device 43 to perform the health check process described below.

  [Processing S401] The wired communication device 43 receives a health check inquiry signal.

  [Processing S402] When the control device 44 detects that the wired communication device 43 has received the health check inquiry signal based on the health check inquiry flag, the control device 44 inputs the health check inquiry signal to the wireless communication device 41. Let

  [Process S403] The wireless communication device 41 transmits the input health check inquiry signal.

  [Process S404] The wireless communication device 41 receives health check response data.

  [Process S405] The control device 44 generates a health check response signal in which the destination information, the identification information indicating the protection target portion, and the current time information are added to the health check response data.

  [Process S406] The wired communication device 43 transmits the generated health check response signal.

  Further, in the lightning strike monitoring device 3, the control program is started when the power source (auxiliary power source 37) is turned on, and the control device 35 is connected to the lightning current measuring device 32, the wireless communication device 33, the capacitor power source 36, and the changeover switch SW. The health check process described below is performed by the cooperative operation.

  [Process S301] The control device 35 controls the change-over switch SW to be turned off. Thereby, the power supply path from the auxiliary power source 37 is reset.

  [Process S302] The control device 35 detects the output voltage of the capacitor power source 36 to determine that the capacitor power source 36 is in the duration of the charging capacity due to the lightning current.

  [Process S303] When the controller 35 determines that the capacitor power source 36 is in the duration of the charging capacity due to the lightning current, the controller 35 turns on the changeover switch SW. As a result, a power supply path from the capacitor power source 36 is set.

  [Processing S304] The wireless communication device 33 receives the health check inquiry signal.

  [Processing S305] The lightning current measuring device 32 generates health check response data in a multi-bit expression in response to an instruction from the control device 35 that has detected the health check inquiry signal.

  [Process S306] The radio communication device 33 transmits the generated health check response data as a radio frequency signal.

  When it is determined in the process S302 that the capacitor power source 36 is outside the lifetime of the charging capacity due to lightning current, the process S304, the process S305, and the process S306 are performed by power supply from the auxiliary power source 37. Done.

[Effect of one embodiment]
In the lightning strike monitoring system 1 of the above-described embodiment, the lightning suppression type lightning rod that has been confirmed to be effective against lightning strikes is used to cooperate with IoT technology, for example, geographically dispersed throughout Japan. Lightning strikes from protected areas can be collected in real time at a centralized location.

  The lightning situation monitoring device 3 in the lightning situation monitoring system 1 cooperates with the repeater 4 to monitor the lightning situation to the lightning suppression type lightning arresters arranged geographically in a discrete manner, and to store the lightning situation in a centralized management location in real time. Notification can be made autonomously.

  The lightning situation monitoring device 3 in the lightning situation monitoring system 1 is charged with a lightning current input from the Rogowski coil 31, and a capacitor power source that operates the lightning current measuring device 32 and the wireless communication device 33 during the lifetime of the charging capacity. By providing 36, further power saving can be achieved by a synergistic effect with direct wireless communication with low power.

  The lightning state monitoring device 3 including the Rogowski coil 31, the lightning current measuring device 32, the wireless communication device 33, the control device 35, and the capacitor power source 36 is disposed so as to be retrofitted on the support member 21 constituting the lightning suppression type lightning rod 2. Can do.

  In the lightning strike monitoring system 1, the lightning current measuring device 32 uses the wired communication device 43 and the wireless communication device 41 to send a health check inquiry signal for survival confirmation transmitted from the centralized management device 61 by the wireless communication device 33. When the wireless communication device 33 receives the health check response data (HC) expressed in multiple bits, the wireless communication device 33 uses the health check response data (HC) generated by the lightning current measuring device 32 as a radio frequency signal. The wireless communication device 41 receives the health check response data (HC) expressed in multiple bits by direct wireless communication with the wireless communication device 33, and the wired communication device 43 receives the health check received by the wireless communication device 41. A health check response signal HCR in which identification information (ID) indicating at least a protected portion is added to the response data (HC) is generated, and a communication network is generated. By the central control device transmitted to 61 via the workpiece 5 (notification), the existence confirmation of the lightning condition monitoring apparatus 3 and relay 4, it is possible to cope with a problem occurs.

[Modification]
The processing in the above-described embodiment is provided as a computer-executable program, and can be provided via a non-transitory computer-readable recording medium such as a CD-ROM or a flexible disk, and further via a communication line.

  In addition, each of the processes in the above-described embodiment can be performed by selecting and combining any or all of the processes.

DESCRIPTION OF SYMBOLS 1 Lightning strike monitoring system 2 Lightning strike suppression type lightning rod 21 Support member 3 Lightning strike monitoring device 31 Rogowski coil 32 Lightning current measuring device 321 A / D converter 322 Digital data generator 33 Wireless communication device 35 Controller 36 Capacitor power supply 37 Auxiliary Power supply (external power supply)
4 repeater 41 wireless communication device 43 wired communication device 44 control device 5 communication network 6 lightning state remote monitoring center 61 centralized management device

Claims (18)

A coil for inputting a lightning current generated by a lightning strike to a lightning suppression type lightning rod arranged at an external height of a protected object at geographically discrete protection points;
A measuring device that generates lightning current measurement data expressed in a plurality of bits according to the magnitude of the lightning current input from the coil;
A first wireless communication device for transmitting the lightning current measurement data generated by the measuring device as a radio frequency signal;
A power source that is charged with a lightning current input from the coil and that operates the measuring device and the first wireless communication device during the lifetime of the charging capacity;
A second wireless communication device that receives the lightning current measurement data represented by the plurality of bits by direct wireless communication with the first wireless communication device;
Wired for transmitting a lightning strike monitoring signal generated by adding at least identification information indicating a location to be protected to the lightning current measurement data received by the second wireless communication device to a centralized management location via a communication network A communication device;
The coil, the measuring device, the first wireless communication device, and the power source are disposed on the lightning suppression lightning rod, and the second wireless communication device and the wired communication device are disposed inside the protected body. A lightning strike monitoring device.   The lightning strike monitoring apparatus according to claim 1, wherein the power supply is a capacitor power supply including a capacitor charged with a lightning current.   The lightning strike monitoring apparatus according to claim 2, further comprising a changeover switch for switching to an external power supply when the capacitor power supply is outside a charge capacity lifetime due to a lightning current.   2. The lightning strike monitoring apparatus according to claim 1, wherein the coil, the measuring device, the first wireless communication device, and the power source are disposed so as to be retrofitted to a support member that constitutes the lightning suppression lightning rod.   2. The lightning strike monitoring apparatus according to claim 1, wherein the coil is a Rogowski coil that inputs a lightning current flowing through a support member constituting the lightning suppression type lightning rod to the measuring device and the power source.   The lightning strike monitoring apparatus according to claim 1, wherein the communication network is the Internet that enables application of IoT technology.   When the measuring device receives a health check inquiry signal for survival confirmation transmitted from the centralized management location via the wired communication device and the second wireless communication device, the first wireless communication device. The lightning condition monitoring device according to claim 1, wherein health check response data of the multiple bit representation is generated. The first wireless communication device transmits the health check response data generated by the measuring device as a radio frequency signal,
The second wireless communication device receives the health check response data of the multiple bit representation by direct wireless communication with the first wireless communication device;
The wired communication device generates a health check response signal in which at least identification information indicating a protection target portion is added to the health check response data received by the second wireless communication device, and the concentration is transmitted via the communication network. The lightning strike monitoring apparatus according to claim 7, which is transmitted to a management location. The lightning strike status monitoring device according to claim 1 or 8, wherein current time information is further added to the lightning strike status monitoring signal and the health check response signal.
A lightning current generated by a lightning strike to a lightning suppression type lightning rod placed at an external height of an object to be protected at geographically discrete locations to be protected;
Generating a plurality of bits of lightning current measurement data in accordance with the magnitude of the lightning current input from the coil with a measuring device;
Transmitting the lightning current measurement data generated by the measuring device as a radio frequency signal from a first radio communication device;
Operating the measuring instrument and the first wireless communicator for a lifetime of charge capacity by a power source charged with a lightning current input from the coil;
Receiving the lightning current measurement data represented by the plurality of bits by the second wireless communication device by direct wireless communication with the first wireless communication device;
A lightning state monitoring signal generated by adding at least identification information indicating a location to be protected to the lightning current measurement data received by the second wireless communication device is transmitted to a centralized management location via a communication network. Send from;
The coil, the measuring device, the first wireless communication device, and the power source are disposed on the lightning suppression lightning rod, and the second wireless communication device and the wired communication device are disposed inside the protected body. Lightning situation monitoring method using a lightning situation monitoring device.   The lightning strike monitoring method according to claim 10, wherein the power supply is a capacitor power supply including a capacitor charged with a lightning current.   The method according to claim 11, wherein the capacitor power source is switched to an external power source by a changeover switch when the capacitor power source is outside the duration of charge capacity due to lightning current.   The lightning strike state monitoring method according to claim 10, wherein the coil, the measuring device, the first wireless communication device, and the power source are disposed so as to be retrofitted on a support member that constitutes the lightning strike suppression lightning rod.   The lightning strike state monitoring method according to claim 10, wherein the coil is a Rogowski coil that inputs a lightning current flowing through a support member constituting the lightning suppression type lightning rod to the measuring device and the power source.   The method according to claim 10, wherein the communication network is the Internet that enables application of IoT technology.   When the measuring device receives a health check inquiry signal for survival confirmation transmitted from the centralized management location via the wired communication device and the second wireless communication device, the first wireless communication device. The lightning condition monitoring method according to claim 10, wherein the multi-bit representation health check response data is generated. The first wireless communication device transmits the health check response data generated by the measuring device as a radio frequency signal,
The second wireless communication device receives the health check response data of the multiple bit representation by direct wireless communication with the first wireless communication device;
The wired communication device generates a health check response signal in which at least identification information indicating a protection target portion is added to the health check response data received by the second wireless communication device, and the concentration is transmitted via the communication network. The lightning strike monitoring method according to claim 16, wherein the method is transmitted to a management location.   The lightning strike status monitoring method according to claim 10 or 17, wherein current time information is further added to the lightning strike status monitoring signal and the health check response signal.