JP2007121127A5 - - Google Patents

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Publication number
JP2007121127A5
JP2007121127A5 JP2005314162A JP2005314162A JP2007121127A5 JP 2007121127 A5 JP2007121127 A5 JP 2007121127A5 JP 2005314162 A JP2005314162 A JP 2005314162A JP 2005314162 A JP2005314162 A JP 2005314162A JP 2007121127 A5 JP2007121127 A5 JP 2007121127A5
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JP
Japan
Prior art keywords
lightning discharge
lightning
time
reception time
locating system
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Pending
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JP2005314162A
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Japanese (ja)
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JP2007121127A (en
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Priority to JP2005314162A priority Critical patent/JP2007121127A/en
Priority claimed from JP2005314162A external-priority patent/JP2007121127A/en
Publication of JP2007121127A publication Critical patent/JP2007121127A/en
Publication of JP2007121127A5 publication Critical patent/JP2007121127A5/ja
Pending legal-status Critical Current

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Claims (7)

雷放電による電磁波がアンテナで受信された時刻（雷放電受信時刻という）を検出するための受信局を所定半径円内に３局以上設置し、各受信局はＶＬＦ−ＭＦ帯の電磁界をアンテナで受信し、その受信信号から振幅が所定値以上のピークを検出し、そのピークの時刻を雷放電受信時刻とし、少なくとも３局の受信局における雷放電受信時刻を二次元の到達時間差法に適用して雷放電が発生した二次元位置を標定することを特徴とする雷放電位置標定システム。   Three or more receiving stations are installed within a predetermined radius circle for detecting the time at which electromagnetic waves caused by lightning discharge are received by the antenna (referred to as lightning discharge reception time). , Detect a peak with an amplitude greater than or equal to a predetermined value from the received signal, set the peak time as the lightning discharge reception time, and apply the lightning discharge reception time at at least three receiving stations to the two-dimensional arrival time difference method A lightning discharge position locating system characterized by locating the two-dimensional position where the lightning discharge occurred. 雷放電受信時刻を検出するための受信局を所定半径円内に４局以上設置し、各受信局はＶＬＦ−ＭＦ帯の電磁界をアンテナで受信し、その受信信号から振幅が所定値以上のピークを検出し、そのピークの時刻を雷放電受信時刻とし、少なくとも４局の受信局における雷放電受信時刻を三次元の到達時間差法に適用して雷放電が発生した三次元位置を標定することを特徴とする雷放電位置標定システム。 Four or more receiving stations for detecting the lightning discharge reception time are installed within a predetermined radius circle , each receiving station receives an electromagnetic field in the VLF-MF band with an antenna, and the amplitude of the received signal is greater than a predetermined value. Detect the peak, set the peak time as the lightning discharge reception time, and apply the lightning discharge reception time in at least four receiving stations to the three-dimensional arrival time difference method to locate the three-dimensional position where the lightning discharge occurred. Lightning discharge location system characterized by. 標定した雷放電位置の高さにより、落雷と雲内放電とを区別することを特徴とする請求項２に記載の雷放電位置標定システム。The lightning discharge position locating system according to claim 2, wherein lightning strikes and in-cloud discharges are distinguished based on the height of the lightning discharge position determined. 上記受信信号を所定のサンプリング周期でサンプリングし、その時系列から振幅が所定値以上のピークを検出することを特徴とする請求項１乃至請求項３のいずれか記載の雷放電位置標定システム。 The lightning discharge position locating system according to any one of claims 1 to 3, wherein the received signal is sampled at a predetermined sampling period, and a peak whose amplitude is a predetermined value or more is detected from the time series . 上記サンプリング周期は１００ｎｓ以下であることを特徴とする請求項４に記載の雷放電位置標定システム。The lightning discharge position locating system according to claim 4, wherein the sampling period is 100 ns or less. 上記受信局を設置する半径が５０ｋｍであることを特徴とする請求項１乃至請求項５のいずれか記載の雷放電位置標定システム。6. A lightning discharge position locating system according to claim 1, wherein a radius at which the receiving station is installed is 50 km. 上記アンテナにより電磁界の微分信号を上記受信信号として出力し、一方、この受信信号を積分して電磁界信号を求め、この電磁界信号がしきい値を越えたことで雷放電があったというイベントを検出し、この雷放電イベント検出時にのみ上記受信信号からの雷放電受信時刻の検出を行うことを特徴とする請求項１乃至請求項６のいずれか記載の雷放電位置標定システム。 The antenna outputs a differential signal of the electromagnetic field as the reception signal, and on the other hand, the reception signal is integrated to obtain an electromagnetic field signal, and the lightning discharge is caused by the electromagnetic field signal exceeding a threshold value. The lightning discharge position locating system according to any one of claims 1 to 6, wherein an event is detected and lightning discharge reception time is detected from the received signal only when the lightning discharge event is detected.
JP2005314162A 2005-10-28 2005-10-28 Lightning discharge location orientating system Pending JP2007121127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005314162A JP2007121127A (en) 2005-10-28 2005-10-28 Lightning discharge location orientating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005314162A JP2007121127A (en) 2005-10-28 2005-10-28 Lightning discharge location orientating system

Publications (2)

Publication Number Publication Date
JP2007121127A JP2007121127A (en) 2007-05-17
JP2007121127A5 true JP2007121127A5 (en) 2008-12-11

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JP2005314162A Pending JP2007121127A (en) 2005-10-28 2005-10-28 Lightning discharge location orientating system

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101802650B (en) * 2007-06-11 2013-06-05 雅盖隆大学 Method and apparatus for monitoring storm activity on the earth's surface in real time
JP4931252B2 (en) * 2008-08-14 2012-05-16 鹿児島県 Method and apparatus for detecting location of occurrence of electrostatic discharge
JP5374687B2 (en) * 2009-03-30 2013-12-25 鹿児島県 Method and apparatus for visualizing electrostatic discharge occurrence location
JP5355344B2 (en) * 2009-10-16 2013-11-27 中国電力株式会社 Lightning charge evaluation system, lightning determination method, lightning charge evaluation method
JP6152873B2 (en) * 2014-05-30 2017-06-28 Ｊｆｅスチール株式会社 Lightning generation position estimation method, lightning generation position display system, and factory operation method
JP6628641B2 (en) * 2016-03-03 2020-01-15 一般財団法人電力中央研究所 Method for estimating charge amount, estimation device, and estimation program
JP6537467B2 (en) * 2016-03-28 2019-07-03 一般財団法人電力中央研究所 Method of estimating lightning current characteristic value, estimation device, and estimation program
CN107356886A (en) * 2017-08-24 2017-11-17 南京信息工程大学 Thunder and lightning three-dimensional magnetic field data collecting system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5923275A (en) * 1982-07-30 1984-02-06 Japan Radio Co Ltd Observing device of thunderbolt and its direction
JPH03216587A (en) * 1990-01-22 1991-09-24 Central Res Inst Of Electric Power Ind Method and apparatus for discriminating earth thunderbolt
JP2001004731A (en) * 1999-06-17 2001-01-12 Japan Science & Technology Corp Broad-band interferometer
JP4817665B2 (en) * 2005-01-11 2011-11-16 東北電力株式会社 Lightning location method and system

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