JP2678852B2 - Lightning strike location device - Google Patents
Lightning strike location deviceInfo
- Publication number
- JP2678852B2 JP2678852B2 JP4056182A JP5618292A JP2678852B2 JP 2678852 B2 JP2678852 B2 JP 2678852B2 JP 4056182 A JP4056182 A JP 4056182A JP 5618292 A JP5618292 A JP 5618292A JP 2678852 B2 JP2678852 B2 JP 2678852B2
- Authority
- JP
- Japan
- Prior art keywords
- lightning
- sound
- signal
- time
- highest level
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Locating Faults (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、落雷の位置を標定する
ための装置に関する。FIELD OF THE INVENTION The present invention relates to a device for locating the location of a lightning strike.
【０００２】[0002]
【従来の技術】送電線への落雷は、落雷により発生した
サージ電圧を検出するサージ検出手段をー定の距離Ｌを
隔てて送電線に接続して、落雷等によるサージ電圧を各
サージ検出手段により検出し、サージ電圧が到達した時
刻Ｔ１、Ｔ２を時刻基準信号発生装置から得て、これら
時刻に基づいてサージ電圧到達時間差ΔＴ＝Ｔ１−Ｔ２
を算出して落雷位置を求める方法が用いられている。し
かしながら、このような時間差の測定には数十ナノ秒程
度の精度が必要で、システムが複雑、かつ高価になると
いう問題がある。このような問題を解消するため、特開
昭55-164386号公報に記載されたような測定地点に配置
されたビデオカメラと、同地点に配置されたマイクロフ
ォンと、これらカメラ、及びマイクロフォンの信号を記
録するテープレコーダとを備え、テープレコーダの再生
映像から雷光位置を検出するとともに、引き続き再生さ
れる落雷音までの時間から距離情報を得て、落雷位置を
測定する方法も提案されているが、テレビカメラにより
得た雷光と、マイクロフォンからの落雷音とをいったん
テープレコーダに記録し、その後テープレコーダを再生
して得られる信号に基づいて落雷位置を求めるため、落
雷位置の標定までに時間を要するという問題がある。 2. Description of the Related Art When lightning strikes a power transmission line, surge detecting means for detecting a surge voltage generated by the lightning strike is connected to the power transmission line at a fixed distance L, and surge voltage due to lightning strike is detected by each surge detecting means. And the surge voltage arrival times T1 and T2 are obtained from the time reference signal generator, and the surge voltage arrival time difference ΔT = T1−T2 based on these times.
Is used to calculate the lightning strike position. However, the measurement of such a time difference requires an accuracy of about several tens of nanoseconds, which causes a problem that the system becomes complicated and expensive. In order to solve such a problem,
Placed at a measurement point as described in Japanese Patent Publication No. 55-164386
Built-in video camera
And the signals from these cameras and microphones.
Equipped with a tape recorder to record, playback of the tape recorder
The lightning position is detected from the image and is continuously reproduced.
Distance information can be obtained from the time until the lightning strike
A measuring method has been proposed, but with a TV camera
Once the thunder light obtained and the thunderbolt sound from the microphone
Record on tape recorder and then play back tape recorder
Since the lightning strike position is determined based on the signal obtained by
There is a problem that it takes time to locate the lightning position.
【０００３】[0003]
【発明が解決しようとする課題】本発明はこのような問
題に鑑みてなされたものであって、その目的とするとこ
ろは落雷時における稲妻の発光強度、及び光の到来方向
に基づいて落雷箇所をオンラインで標定できる簡単で且
つ安価な装置を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to determine the location of a lightning strike based on the light emission intensity of lightning at the time of a lightning strike and the light arrival direction. It is to provide a simple and inexpensive device that can be used to orient online .
【０００４】[0004]
【課題を解決するための手段】このような問題を解決す
るために本発明においては、水平面の円周上に複数の光
電変換器を等間隔に配設した雷光検出手段と、各光電変
換器によって検出されたピーク信号をそれぞれホールド
する複数のピークホールド手段と、各ピークホールド手
段から雷光の最高レベルの信号を検出し、最高レベルの
信号を出力した光電変換器を特定して雷光の入射方向を
判定する方位判定手段と、雷音を電気信号に変換する雷
音検出手段と、雷音の最高レベルの信号を判定する落雷
時点判定手段と、方位判定手段により雷光の入射方向が
特定された時点で起動するとともに、落雷時点判定手段
による雷音の最高レベルの信号が検出された時点で停止
して時間を測定する時間差測定手段と、雷音の音速を算
出する音速演算手段と、時間差測定手段からの時間と音
速演算手段からの音速とにより落雷地点までの距離を演
算する距離演算手段とを備えたものである。 In Means for Solving the Problems The present invention to solve such a problem, a lightning detection means disposed at equal intervals a plurality of photoelectric converters on the circumference of the horizontal surface, varying the photoelectric
Holds each peak signal detected by the converter
Multiple peak hold means and each peak hold hand
The highest level signal of lightning is detected from the step and
Specify the photoelectric converter that output the signal and set the incident direction of the lightning
A direction determining means for determining, a lightning sound detecting means for converting lightning sound into an electric signal, and a lightning strike for judging the highest level signal of the lightning sound
The incident direction of lightning is determined by the time point determination means and the direction determination means.
Starting at the specified time
Stops when the highest level signal of thunder is detected
And the time difference measurement method to measure the time and the sound velocity of the thunder
The sound velocity calculation means and the time and sound from the time difference measurement means
The distance to the lightning strike point is played by the speed of sound from the speed calculation means.
And a distance calculating means for calculating.
【０００５】[0005]
【作用】稲妻に起因する雷光の測定点から見た方向を検
出して雷発生の方位を特定し、同時に計時を開始する。
所定時間が経過して特定周波の落雷に起因する音が到達
した時点で上記計時を停止する。稲妻発生から雷音の到
達までの時間により距離を求め、この距離と上記方位に
より落雷位置を標定する。[Operation] The direction of the lightning caused by lightning is detected from the measuring point to identify the direction of the lightning, and at the same time, the timing is started.
When a predetermined time elapses and a sound due to a lightning strike of a specific frequency arrives, the time measurement is stopped. The distance is calculated from the time from the occurrence of lightning to the arrival of thunder, and the lightning strike position is located based on this distance and the above azimuth.
【０００６】[0006]
【実施例】そこで以下に本発明の詳細を図示した実施例
に基づいて説明する。図２は本発明の一実施例を示すも
のであって、図中符号１は、雷光を検出するための雷光
検出器で、複数の光電変換器、この実施例では３６個の
ＰＩＮダイオードを水平面の半径３０センチ以上の円周
上に等間隔で配置して構成されている。これら光電変換
器の出力端子のそれぞれには前置増幅器３を介してピ−
クホールド回路４が接続されている。これらピ−クホー
ルド回路４の出力端子には走査回路５を介してアナログ
ーデイジタル変換器６が接続され、その出力がデータ処
理装置１２に入力している。DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the illustrated embodiments. FIG. 2 shows an embodiment of the present invention, in which reference numeral 1 is a lightning detector for detecting lightning, which is a plurality of photoelectric converters, in this embodiment, 36 PIN diodes are arranged on a horizontal plane. Are arranged at equal intervals on a circumference having a radius of 30 cm or more. Each of the output terminals of these photoelectric converters has a pin via a preamplifier 3.
The hold circuit 4 is connected. An analog-digital converter 6 is connected to the output terminals of these peak-hold circuits 4 via a scanning circuit 5, and the output thereof is input to a data processing device 12.
【０００７】７は、雷音検出器を構成する無指向性マイ
クロフォンで、前置増幅器８、及び１５０ヘルツ程度の
バンドパスフィルタ９を介してピ−クホールド回路１０
が接続され、アナログーデイジタル変換器１１を介して
後述するデータ処理装置１２に接続されている。Reference numeral 7 is an omnidirectional microphone which constitutes a thunder sound detector, and a peak hold circuit 10 is provided through a preamplifier 8 and a bandpass filter 9 of about 150 Hertz.
Are connected to the data processing device 12 described later via the analog-digital converter 11.
【０００８】１２は、データ処理装置を構成するマイク
ロコンピュータで、雷光検出器１、及び雷音検出器７か
らの信号を受け、雷光検出器１からの信号の内、最高強
度を示す方向と、これを受信した時点から雷音がピ−ク
に到達した時点までの時間ΔＴを測定し、時間差ΔＴと
音速とにより落雷地点を算出するようにプログラムされ
ている。なお、図中符号１３は、外気温を測定するため
の温度センサーを示す。Reference numeral 12 denotes a microcomputer constituting a data processing device, which receives signals from the lightning detector 1 and the sound detector 7, and shows the highest intensity of the signals from the light detector 1. It is programmed to measure the time ΔT from the time when it receives the lightning sound to the time when the lightning sound reaches the peak, and calculate the lightning strike point from the time difference ΔT and the speed of sound. Reference numeral 13 in the figure indicates a temperature sensor for measuring the outside air temperature.
【０００９】図１は、前述のデータ処理装置１２が奏す
べき機能を示すものであって、図中符号２１は方位検出
手段で、雷光検出器１からの信号の内、最高レベルを示
す信号に基づいて方位を算出するものである。２２は、
落雷時点判定手段で雷音検出器から最高レベルの信号が
出力された時点を検出するものである。２３は時間差測
定手段で、最高レベルの光が受光された時点、つまり方
位が決定された時点で起動し、また落雷時点判定手段２
２から信号が出力された時点で停止し、発光から雷音が
到達するのに要した時間ΔＴを測定するものである。２
４は距離演算手段で、温度センサー１３からの温度信号
により音速演算手段２５で得られた現在の音速Ｖtと時
間差ΔＴとから距離を算出するものである。FIG. 1 shows a function to be performed by the above-mentioned data processing device 12. Reference numeral 21 in the figure is an azimuth detecting means, which is a signal showing the highest level among the signals from the lightning detector 1. The azimuth is calculated based on this. 22 is
The lightning strike time determination means detects the time when the highest level signal is output from the lightning sound detector. Reference numeral 23 is a time difference measuring means, which is activated at the time when the highest level light is received, that is, when the azimuth is determined, and the lightning strike time determination means 2
It stops when the signal is output from No. 2 and measures the time ΔT required for lightning to reach from the light emission. 2
Reference numeral 4 denotes a distance calculation means for calculating the distance from the current sound speed Vt obtained by the sound speed calculation means 25 and the time difference ΔT from the temperature signal from the temperature sensor 13.
【００１０】この実施例において、稲妻が発生すると、
これによる光は雷光検出器１を構成している各光電変換
器２，２，２‥‥に入射して、各光電変換器２，２，２
‥‥が向けられている方向の光強度に比例した大きさの
電気信号に変換される。この電気信号は、前置増幅器
３，３，３‥‥により増幅されたのち、ピ−クホールド
回路４，４，４‥‥によりそのピ−ク値が記憶される。
各ピ−クホールド回路４，４，４‥‥からの信号は、走
査回路５により走査されてアナログーデイジタル変換器
６によりデイジタル信号似変換され、データ処理装置１
２に取込まれる。この信号が取込まれると、最高のレベ
ルを示す信号を出力した光電変換器２，２，２‥‥の受
光方向に基づいて方位が決定され、同時に計時動作が開
始される。In this embodiment, when lightning occurs,
The light thus generated is incident on the photoelectric converters 2, 2, 2, ... Which constitute the lightning detector 1, and the photoelectric converters 2, 2, 2 ...
Is converted into an electric signal having a magnitude proportional to the light intensity in the direction in which the light is directed. The electric signals are amplified by the preamplifiers 3, 3, 3 ... And the peak values are stored by the peak hold circuits 4, 4, 4.
The signals from the respective peak-hold circuits 4, 4, 4 ... Are scanned by the scanning circuit 5 and converted by the analog-digital converter 6 into digital signals, and the data processing device 1
2 is taken. When this signal is taken in, the azimuth is determined based on the light receiving direction of the photoelectric converters 2, 2, 2, ... Which output the signal indicating the highest level, and at the same time, the timing operation is started.
【００１１】一方、稲妻が生じてから所定時間ΔＴが経
過した時点で雷音が到達する。この雷音は、マイクロフ
ォン７により電気信号に変換され、雷音特有の周波数の
信号が選択的に取り出され、ピ−クホールド回路１０に
最高値が保持される。この値は、アナログーデイジタル
変換器１１によりデイジタル信号に変換されてデータ処
理装置１２に取込まれ、計時動作が停止する。これによ
り、稲妻の発生から雷音の到来までの時間ΔＴが算出さ
れる。On the other hand, a thunder sound arrives when a predetermined time ΔT has elapsed after the occurrence of lightning. This thunder sound is converted into an electric signal by the microphone 7, a signal having a frequency peculiar to the thunder sound is selectively taken out, and the peak value is held in the peak hold circuit 10. This value is converted into a digital signal by the analog-digital converter 11 and taken into the data processing device 12, and the time counting operation is stopped. As a result, the time ΔT from the occurrence of lightning to the arrival of thunder is calculated.
【００１２】このようにして時間が算出された段階で、
現時点における音速Ｖtを検出し、これに基づいて落雷
地点までの距離Ｌ＝Ｖt×ΔＴを求める。これにより、
前述の方位データとにより落雷地点の位置が推定可能と
なる。このような装置を多箇所に設置しておき、複数の
データを綜合的に処理することにより落雷箇所を一層正
確に標定することができる。When the time is calculated in this way,
The sound velocity Vt at the present time is detected, and the distance L = Vt × ΔT to the lightning strike point is calculated based on the detected sound velocity Vt. This allows
The position of the lightning strike point can be estimated from the above-mentioned bearing data. It is possible to locate a lightning strike location more accurately by installing such a device at multiple locations and processing a plurality of data comprehensively.
【００１３】なお、この実施例のおいては説明を簡素化
するために、音速が温度だけに依存するものとして補正
しているが、その他の要因、例えば湿度を加味して音速
を補正することにより、測定精度を向上させることがで
きる。In this embodiment, in order to simplify the explanation, the sound velocity is corrected so that it depends only on the temperature. However, the sound velocity is corrected in consideration of other factors such as humidity. Thereby, the measurement accuracy can be improved.
【００１４】[0014]
【発明の効果】以上、説明したように本発明において
は、水平面の円周上に複数の光電変換器を等間隔に配設
した雷光検出手段と、各光電変換器によって検出された
ピーク信号をそれぞれホールドする複数のピークホール
ド手段と、各ピークホールド手段から雷光の最高レベル
の信号を検出し、最高レベルの信号を出力した光電変換
器を特定して雷光の入射方向を判定する方位判定手段
と、雷音を電気信号に変換する雷音検出手段と、雷音の
最高レベルの信号を判定する落雷時点判定手段と、方位
判定手段により雷光の入射方向が特定された時点で起動
するとともに、落雷時点判定手段による雷音の最高レベ
ルの信号が検出された時点で停止して時間を測定する時
間差測定手段と、雷音の音速を算出する音速演算手段
と、時間差測定手段からの時間と音速演算手段からの音
速とにより落雷地点までの距離を演算する距離演算手段
とを備えたので、落雷時に発生する電磁波の影響を受け
ることがないばかりでなく、落雷に起因する雷光や雷音
を記録再生操作するといった面倒な作業をすることもな
く、落雷位置をオン・ライン測定法により瞬時に標定す
ることができる。 As described above , in the present invention, a plurality of photoelectric converters are arranged at equal intervals on the circumference of the horizontal plane.
Detected by lightning detection means and each photoelectric converter
Multiple peak holes that hold each peak signal
The highest level of lightning from each peak hold means
Photoelectric conversion that detects the signal of and outputs the highest level signal
Direction determining means for determining the incident direction of lightning by specifying the vessel
When the Kaminarion detecting means for converting Kaminarion into electrical signals, the Kaminarion
Lightning strike point determination means for determining the highest level signal and direction
Activated when the incident direction of lightning is specified by the judgment means
And the highest level of thunder
To stop and measure the time when the
Difference measurement means and sound velocity calculation means for calculating the sound velocity of thunder
And the time from the time difference measuring means and the sound from the sound velocity calculating means.
Since it is equipped with a distance calculator that calculates the distance to the lightning strike point depending on the speed, it is affected by electromagnetic waves generated during a lightning strike.
Lightning and thundering sound caused by lightning strikes
Do not perform troublesome work such as recording and playing back
Instantly locate the lightning strike position by the on-line measurement method
Can be
【図１】本発明の一実施例をマイクロコンピュータが奏
すべき機能でもって示す図である。FIG. 1 is a diagram showing an embodiment of the present invention with a function to be performed by a microcomputer.
【図２】本発明の一実施例を示す装置の構成図である。FIG. 2 is a configuration diagram of an apparatus showing one embodiment of the present invention.
１ 雷光検出器 ２ 光電変換器４ ピークホールド回路 ７ 雷音検出器 １２ データ処理装置２１ 方位判定手段 ２２ 落雷時点判定手段 ２３ 時間差測定手段 ２４ 距離演算手段 ２５ 音速演算手段 DESCRIPTION OF SYMBOLS 1 Lightning detector 2 Photoelectric converter 4 Peak hold circuit 7 Lightning detector 12 Data processing device 21 Direction determining means 22 Lightning strike point determining means 23 Time difference measuring means 24 Distance calculating means 25 Sound velocity calculating means
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−23275（ＪＰ，Ａ) 特開 昭55−164386（ＪＰ，Ａ) 特開 昭57−97475（ＪＰ，Ａ) 特開 昭62−172213（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-59-23275 (JP, A) JP-A-55-164386 (JP, A) JP-A-57-97475 (JP, A) JP-A-62- 172213 (JP, A)
Claims (1)
間隔に配設した雷光検出手段と、前記各光電変換器によ
って検出されたピーク信号をそれぞれホールドする複数
のピークホールド手段と、該各ピークホールド手段から
雷光の最高レベルの信号を検出し、前記最高レベルの信
号を出力した前記光電変換器を特定して雷光の入射方向
を判定する方位判定手段と、雷音を電気信号に変換する
雷音検出手段と、雷音の最高レベルの信号を判定する落
雷時点判定手段と、前記方位判定手段により雷光の入射
方向が特定された時点で起動するとともに、前記落雷時
点判定手段による雷音の最高レベルの信号が検出された
時点で停止して時間を測定する時間差測定手段と、雷音
の音速を算出する音速演算手段と、前記時間差測定手段
からの時間と前記音速演算手段からの音速とにより落雷
地点までの距離を演算する距離演算手段とを備えた落雷
位置標定装置。1. A plurality of photoelectric converters are arranged on the circumference of a horizontal plane.
The lightning detection means arranged at intervals and the photoelectric converters
Holds each peak signal detected by
From the peak hold means and each of the peak hold means
The highest level signal of lightning is detected and the highest level signal is detected.
Incident direction of lightning by specifying the photoelectric converter that output the signal
Azimuth determination means for determining the lightning sound , lightning sound detection means for converting the lightning sound into an electrical signal, and a drop signal for determining the highest level signal of the lightning sound.
Incident of lightning by the lightning point determination means and the direction determination means
It starts when the direction is specified, and when the lightning strike occurs.
The highest level signal of thunder sound was detected by the point determination means
Time difference measuring means to stop at a certain point and measure time, and thunder
Sound velocity calculating means for calculating the sound velocity of the
From the time from and the speed of sound from the speed of sound calculation means
A lightning strike position locating device comprising a distance calculating means for calculating a distance to a point .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4056182A JP2678852B2 (en) | 1992-02-06 | 1992-02-06 | Lightning strike location device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4056182A JP2678852B2 (en) | 1992-02-06 | 1992-02-06 | Lightning strike location device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06186325A JPH06186325A (en) | 1994-07-08 |
| JP2678852B2 true JP2678852B2 (en) | 1997-11-19 |
Family
ID=13019970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4056182A Expired - Fee Related JP2678852B2 (en) | 1992-02-06 | 1992-02-06 | Lightning strike location device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2678852B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5072678B2 (en) | 2008-03-24 | 2012-11-14 | 三菱重工業株式会社 | Lightning strike simulation apparatus, method and program |
| JP5300693B2 (en) * | 2009-11-09 | 2013-09-25 | 中国電力株式会社 | Power conditioner protection device and power conditioner protection method |
| JP5997006B2 (en) * | 2012-10-30 | 2016-09-21 | 京セラ株式会社 | Solar power plant |
| CN113189572B (en) * | 2021-04-15 | 2023-11-17 | 南京维沃软件技术有限公司 | Lightning distance prompting method, device, electronic equipment and readable storage medium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55164386A (en) * | 1979-06-11 | 1980-12-22 | Nippon Telegr & Teleph Corp <Ntt> | Measuring method for position of thunderbolt falling place |
| JPS5797475A (en) * | 1980-12-10 | 1982-06-17 | Meidensha Electric Mfg Co Ltd | Measuring method for position of energy source |
| JPS5923275A (en) * | 1982-07-30 | 1984-02-06 | Japan Radio Co Ltd | Observing device of thunderbolt and its direction |
-
1992
- 1992-02-06 JP JP4056182A patent/JP2678852B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06186325A (en) | 1994-07-08 |
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