JP2006337083A - Earthquake motion arrival determining system - Google Patents
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Abstract
Description
この発明は、気象庁が試験配信をしている緊急地震速報を用いて、地震動の到達時に、建造物の歪および亀裂を計測するかどうかを判定する地震動到達判定システムに関するものである。 The present invention relates to a seismic motion arrival determination system that determines whether to measure distortion and cracking of a building when an earthquake motion arrives, using emergency earthquake warnings distributed by the Japan Meteorological Agency.
これまで、気象庁の震度情報を用いたり、地震発生後に出る震源情報を用いて、着目地域の推定地震動を推定するシステムや、被害データベースと発生した地震の震源情報を照らし合わせて着目地域の被害を推定するシステムがあった。
また、地震動を検知して装置を自動的に動作させるシステムもあったが、これまでは対象とする建造物の近傍に地震計を自前で設置して地震動を検出し、その情報に基づいて装置を動作させるものであり、震源情報に基づいて計算された正確な地震波到達時刻情報に基づいて装置を動作させるものではなかった。
特許文献1、2には、自前で設置した地震計が捉えた地震波形に基づいて地震動の到達後に被害を推定するシステムが記載されているが、建造物維持管理のための歪や亀裂の高精度計測システムの測定方法は、定期的に測定したり、地震の後(直後を含む)に計測したりするものであった。
Up to now, using the seismic intensity information of the Japan Meteorological Agency, using the epicenter information that occurs after the earthquake occurs, the estimated ground motion of the area of interest is estimated, the damage database and the earthquake source information of the earthquake that occurred are compared There was a system to estimate.
In addition, there was a system that automatically operated the device by detecting earthquake motion, but until now, a seismometer was installed in the vicinity of the target building to detect the earthquake motion, and the device was based on that information. The device was not operated based on the accurate arrival time information of the seismic wave calculated based on the epicenter information.
Patent Documents 1 and 2 describe systems that estimate damage after the arrival of ground motion based on seismic waveforms captured by seismometers installed on their own. The measurement method of the accuracy measurement system was to measure periodically or after an earthquake (including immediately after).
従来の建造物維持管理計測システムは、地震動が建造物を揺らすタイミングに同期させて高精度の歪亀裂の計測装置を動作させることが難しく、「低精度のデータを定期的に計測する」か、「同期のために計測地点近傍に高価な地震計システムを構築する」か、「高価なデータ記録システムを構築して高精度測定データを連続収録する」必要があった。 It is difficult to operate a high-accuracy strain crack measuring device in synchronization with the timing when earthquake motion shakes the building in the conventional building maintenance management measurement system. It was necessary to “construct an expensive seismometer system near the measurement point for synchronization” or “construct an expensive data recording system to continuously record high-precision measurement data”.
この発明は、上述のような課題を解決するためになされたものであり、気象庁が発表する緊急地震速報を用いて、建造物に地震動が到達する時刻を正確に算出し、建造物に設置されている歪や亀裂の計測装置をタイミング良く起動する地震動到達判定システムを得ることを目的としている。 The present invention has been made to solve the above-described problems, and uses the earthquake early warning published by the Japan Meteorological Agency to accurately calculate the time at which the earthquake motion reaches the building and is installed in the building. The purpose is to obtain a seismic motion arrival determination system that activates a strain and crack measurement device in a timely manner.
この発明に係わる地震動到達判定システムにおいては、気象庁の緊急地震速報を受信し、この受信した緊急地震速報をネットワークを介して配信する配信装置、建造物の近傍に設置され、緊急地震速報を配信装置からネットワークを介して受信する受信端末、建造物の属性データを有する建造物データベース、および受信端末により受信された緊急地震速報に基き建造物への地震動の到達時刻を算出すると共に、建造物データベースを参照して、建造物への地震動の到達時に建造物の歪および亀裂を計測するかどうかを判定する地震動到達判定処理手段を備えたものである。 In the seismic motion arrival determination system according to the present invention, a distribution device that receives an emergency earthquake bulletin from the Japan Meteorological Agency and distributes the received emergency earthquake bulletin via a network, a distribution device that is installed in the vicinity of a building and distributes the earthquake early warning From the receiving terminal that receives from the network via the network, the building database having the attribute data of the building, and the arrival time of the seismic motion to the building based on the earthquake early warning received by the receiving terminal, and the building database Referring to FIG. 2, the apparatus includes a ground motion arrival determination processing means for determining whether to measure the distortion and crack of the building when the ground motion reaches the building.
この発明は、以上説明したように、気象庁の緊急地震速報を受信し、この受信した緊急地震速報をネットワークを介して配信する配信装置、建造物の近傍に設置され、緊急地震速報を配信装置からネットワークを介して受信する受信端末、建造物の属性データを有する建造物データベース、および受信端末により受信された緊急地震速報に基き建造物への地震動の到達時刻を算出すると共に、建造物データベースを参照して、建造物への地震動の到達時に建造物の歪および亀裂を計測するかどうかを判定する地震動到達判定処理手段を備えたので、建造物管理者が自前で建造物近傍に地震観測システムを設置することなしに、歪や亀裂の計測をタイミング良く無駄なく動作させることができる。 As described above, the present invention receives an earthquake early warning from the Japan Meteorological Agency and distributes the received emergency earthquake warning via a network, installed in the vicinity of the building, and sends the earthquake early warning from the distribution device. Receiving terminals received via the network, building database with building attribute data, and calculating the arrival time of earthquake motion to the building based on the earthquake early warning received by the receiving terminal, and refer to the building database In addition, since there is a seismic motion arrival judgment processing means that judges whether to measure the strain and cracks of the building when the seismic motion reaches the building, the building manager can install the seismic observation system near the building by himself. Without installation, measurement of strain and cracks can be performed with good timing and without waste.
実施の形態1.
図1は、この発明の実施の形態1による地震動到達判定システムを示す全体システム図である。
図1において、インターネット配信端末2(配信装置)は、気象庁の専用線に接続され、インターネットを介して計測地点近傍の拠点に設置されたインターネット接続端末1(受信端末)に接続されている。地震動到達判定処理システム8(地震動到達判定処理手段)は、計測地点近傍の拠点に着信した緊急地震速報により、高精度データ計測を実施するかどうかを判定する。歪亀裂計測装置9は、橋梁、高速道路、ダム、貯水池、高層ビルなどの維持管理対象建造物に設置され、地震動到達判定処理システム8の判定結果に従って起動され、到達した地震動で揺れている最中の建造物の高精度歪、亀裂データを収集する。
Embodiment 1 FIG.
FIG. 1 is an overall system diagram showing an earthquake motion arrival determination system according to Embodiment 1 of the present invention.
In FIG. 1, an Internet distribution terminal 2 (distribution device) is connected to a dedicated line of the Japan Meteorological Agency, and is connected to an Internet connection terminal 1 (reception terminal) installed at a base near a measurement point via the Internet. The earthquake motion arrival determination processing system 8 (earthquake motion arrival determination processing means) determines whether or not to perform high-accuracy data measurement based on the emergency earthquake alert received at a base near the measurement point. The strain crack measuring device 9 is installed in a building to be maintained such as a bridge, a highway, a dam, a reservoir, a high-rise building, and is activated according to the determination result of the earthquake motion arrival determination processing system 8 and is shaken by the reached earthquake motion. Collect high-precision strain and crack data of the building inside.
図2は、この発明の実施の形態1による地震動到達判定システムのインターネットを用いた情報配信を示すフローチャートである。 FIG. 2 is a flowchart showing information distribution using the Internet of the earthquake motion arrival determination system according to Embodiment 1 of the present invention.
図3は、この発明の実施の形態1による地震動到達判定システムの緊急地震速報から目的地点での地震動到達を判定する処理を示すフローチャートである。
図3において、データベース11は、地震のP波とS波の到達時刻を算出するための地震走時表、および予想震度や予想加速度を算出するための距離減衰式を有する。地盤情報データベース13は、計測対象の建造物の地盤情報を有する。データベース15(建造物データベース)は、推定震度や推定地震加速度がいくつ以上で高精度な歪や亀裂の計測を行うかを判定するために建造物の属性データ(建造物種別、工法、建造後年数)が蓄えられると共に、耐震工法の有無を有している。
FIG. 3 is a flowchart showing a process for determining the arrival of the ground motion at the destination point from the earthquake early warning of the ground motion arrival determination system according to Embodiment 1 of the present invention.
In FIG. 3, the database 11 has an earthquake travel time table for calculating the arrival times of the P wave and S wave of the earthquake, and a distance attenuation formula for calculating the predicted seismic intensity and the predicted acceleration. The ground information database 13 has the ground information of the building to be measured. The database 15 (building database) is used to determine the number of estimated seismic intensity and estimated seismic acceleration above which high-accuracy strain and crack measurement is performed. ) Is stored, and the presence or absence of a seismic construction method.
図4は、この発明の実施の形態1による地震動到達判定システムの計測開始を判定するマトリクス表と設定例を示す図である。
図4では、計測対象建造物の属性毎に、計測開始判定基準が示されている。
FIG. 4 is a diagram showing a matrix table for determining the measurement start of the earthquake motion arrival determination system according to Embodiment 1 of the present invention and a setting example.
In FIG. 4, the measurement start determination reference | standard is shown for every attribute of a measurement object building.
次に、動作について説明する。
本地震動到達判定システムは、気象庁が配信する緊急地震速報を、インターネットを介して計測を実施する建造物の近傍地点まで伝送し、伝送地点で緊急地震速報と建造物データベースから計測タイミングと計測要否を判断し、判断結果に応じて地震動中の歪、亀裂の計測を行うものである。
図1で、緊急地震速報は、気象庁の専用線に接続されたインターネット配信端末2により受信され、即座にその内容が、インターネット配信端末2からIPプロトコルでインターネット網を利用して計測地点近傍に設置したインターネット接続端末1まで伝送される。
計測地点近傍の拠点のインターネット接続端末1に着信した緊急地震速報は、地震動到達判定処理システム8によって処理され、高精度データ計測の実施の要否を判定し、その判定結果に従って歪や亀裂の高精度計測が可能な歪亀裂計測装置9が起動されることにより、到達した地震動で揺れている最中の建造物の高精度歪、亀裂データが収集される。
Next, the operation will be described.
This earthquake motion arrival judgment system transmits the emergency earthquake bulletin distributed by the Japan Meteorological Agency to the vicinity of the building where the measurement is performed via the Internet, and the measurement timing and necessity of measurement from the emergency earthquake bulletin and the building database at the transmission point. And measuring strain and cracks during earthquake motion according to the judgment result.
In FIG. 1, the earthquake early warning is received by the Internet distribution terminal 2 connected to a dedicated line of the Japan Meteorological Agency, and the contents are immediately installed near the measurement point by using the Internet network from the Internet distribution terminal 2 with the IP protocol. Is transmitted to the connected Internet terminal 1.
The earthquake early warning that arrives at the Internet connection terminal 1 near the measurement point is processed by the earthquake motion arrival determination processing system 8 to determine whether or not high-precision data measurement is necessary, and according to the determination result, the high level of distortion and cracking is determined. By starting the strain crack measuring device 9 capable of measuring accuracy, high-accuracy strain and crack data of the building that is shaking due to the earthquake motion that has arrived are collected.
次に、緊急地震速報の配信について、図2に基き説明する。
気象庁が設置し管理している全国の地震観測網を通じて、地震を感知したときは(ステップS1)、気象庁は緊急地震速報を作成し、この緊急地震速報は、気象庁と専用線で結んだインターネット配信端末2に配信され(ステップS2)、インターネット配信端末2により、即座にその内容をインターネットを経由して計測地点近傍の拠点に設置したインターネット接続端末1にIPプロトコルで配信する(ステップS3)。これをインターネット接続端末1で受信する(ステップS4)。
このインターネット接続端末1で受信した緊急地震速報は、地震動到達判定処理システム8により処理され、その判断結果に従って歪や亀裂を計測する歪亀裂計測装置9を起動する。
Next, the distribution of the earthquake early warning will be described with reference to FIG.
When an earthquake is detected through the nationwide seismic network installed and managed by the Japan Meteorological Agency (step S1), the Meteorological Agency creates an emergency earthquake bulletin, and this emergency earthquake bulletin is distributed over the Internet through a dedicated line with the Japan Meteorological Agency. The content is distributed to the terminal 2 (Step S2), and the Internet distribution terminal 2 immediately distributes the content via the Internet to the Internet connection terminal 1 installed at the base near the measurement point using the IP protocol (Step S3). This is received by the Internet connection terminal 1 (step S4).
The earthquake early warning received by the Internet connection terminal 1 is processed by the seismic motion arrival determination processing system 8 and activates the strain crack measurement device 9 that measures strain and cracks according to the determination result.
この地震動到達判定処理システム8の処理について、図3に基き説明する。
発震時刻、震源座標(緯度、経度、深さ)、地震規模(マグニチュード)を有する緊急地震速報を受信する(ステップS11)と、受け取った緊急地震速報とデータベース11の情報に基づいて、計測対象物の地点での(1)震源距離、(2)P波到達時刻、(3)S波到達時刻、(4)推定震度と加速度を算出する(ステップS12)。
次いで、地震情報データベース13を用いて、計測対象の建造物の地域の地盤構造によって震度と加速度を補正する(ステップS13)。さらに、推定震度や推定地震加速度がいくつ以上で高精度な歪や亀裂の計測を行うかを判定するために建造物の諸元が蓄えられたデータベース15を参照して、計測開始すべきか否かを判定する(ステップS14)。
以上のように、計測対象とする建造物の属性データ(建造物種別、工法、建造後年数)と発生した地震の特性(計測地点での推定震度、地震の規模)の組み合わせから計測の要否を判定するため、この方式では建造物種別毎に、一定の基準で、木目細かく、高精度の計測データを残せるという効果がある。
The process of the earthquake motion arrival determination processing system 8 will be described with reference to FIG.
When an earthquake early warning having an earthquake occurrence time, an epicenter coordinate (latitude, longitude, depth) and an earthquake magnitude (magnitude) is received (step S11), an object to be measured is based on the received emergency earthquake early warning and information in the database 11. (1) Epicenter distance, (2) P wave arrival time, (3) S wave arrival time, (4) Estimated seismic intensity and acceleration are calculated (step S12).
Next, using the earthquake information database 13, the seismic intensity and acceleration are corrected by the ground structure of the area of the building to be measured (step S13). Further, whether or not the measurement should be started with reference to the database 15 in which the specifications of the building are stored in order to determine how much the estimated seismic intensity and the estimated seismic acceleration are to be used for highly accurate strain and crack measurement. Is determined (step S14).
As described above, the necessity of measurement based on the combination of the attribute data of the building to be measured (building type, construction method, years after construction) and the characteristics of the earthquake that occurred (estimated seismic intensity at the measurement point, magnitude of earthquake) Therefore, this method has an effect that it is possible to leave high-precision measurement data finely with a certain standard for each building type.
次に、ステップS14の判定処理において、計測開始を判定するために用いられる図4の判定マトリクスについて説明する。
近年の地震動と構造物の揺れの研究により、遠距離で発生した地震で、人体に感じる地震動(計測震度)の値が小さい場合であっても、マグニチュードが一定規模以上の地震の場合には、長周期の地震動が遠方まで伝播するため、固有周期の長い建造物がそれに共振してダメージを受けるケースが報告されている。
建造物の管理者は、このような現象が起こりうることを考慮の上、高精度計測を行う条件を設定する必要がある。本システムでは、高精度の歪や亀裂の計測開始の判断基準を決めるための判定マトリクスを作成することによって、
・ 計測対象建造物の種別や工法、建造後年数に応じた計測条件の設定。
・ 推定震度や地震のマグニチュードを用いた計測条件の設定。
が可能となる。
ここで、個々の計測対象建造物についての計測開始の判断基準 =(緊急地震速報から計算した推定震度N以上)OR(地震のマグニチュードがM以上)
とすることで、建造物地点での推定震度が一定以上の場合だけでなく、地震マグニチュード(地震規模)が一定規模以上の場合にも、推定震度の大小によらず高精度計測装置を稼動させる設定が可能となり、計測を漏れなく実施できるという効果がある。
Next, the determination matrix of FIG. 4 used for determining the start of measurement in the determination process of step S14 will be described.
According to recent research on ground motion and structural shaking, even if the value of seismic motion perceived by the human body (measured seismic intensity) is small in earthquakes that occurred at a long distance, Since long-period ground motion propagates far away, it has been reported that buildings with a long natural period resonate with it and get damaged.
The manager of the building needs to set conditions for performing high-precision measurement in consideration of the possibility of such a phenomenon. In this system, by creating a judgment matrix to determine the judgment criteria for starting measurement of high-precision strain and cracks,
・ Setting measurement conditions according to the type of building to be measured, construction method, and years after construction.
・ Setting measurement conditions using estimated seismic intensity and earthquake magnitude.
Is possible.
Here, the criteria for starting measurement for each measurement target building = (Estimated seismic intensity N or higher calculated from the earthquake early warning) OR (Earthquake magnitude M or higher)
By doing so, not only when the estimated seismic intensity at the building point is above a certain level, but also when the earthquake magnitude (earthquake scale) is above a certain level, the high-precision measuring device is operated regardless of the magnitude of the estimated seismic intensity. Setting is possible, and there is an effect that measurement can be performed without omission.
実施の形態1によれば、気象庁が発表する緊急地震速報を利用するので、建造物管理者が自前で建造物近傍に地震観測システムを設置することなしに、歪や亀裂の高精度計測装置をタイミング良く無駄なく動作させることが安価にできるという効果がある。
また、インターネットを利用して緊急地震速報を計測地点まで伝送するため、計測地点が各地にあるような場合でも広域をカバーするシステムが安価に構築できるという効果がある。
また、計測対象とする建造物の属性データ(建造物種別、工法、建造後年数)と、発生した地震の特性(計測地点での推定震度、地震の規模)の組み合わせから計測の要否を判定するため、建造物種別毎に、一定の基準で、木目細かく、高精度の計測データを残せるという効果がある。
According to the first embodiment, since the earthquake early warning published by the Japan Meteorological Agency is used, a high-accuracy measuring device for strain and cracks can be installed without having the building manager install an earthquake observation system in the vicinity of the building. There is an effect that the operation can be performed at a low cost with good timing.
In addition, since the earthquake early warning is transmitted to the measurement point using the Internet, there is an effect that a system that covers a wide area can be constructed at low cost even when the measurement point is in various places.
Also, the necessity of measurement is determined based on the combination of the attribute data of the building to be measured (building type, construction method, years after construction) and the characteristics of the earthquake that occurred (estimated seismic intensity at the measurement point, magnitude of the earthquake) Therefore, there is an effect that fine and high-precision measurement data can be left on a certain basis for each building type.
実施の形態2.
図5は、この発明の実施の形態2による地震動到達判定システムを示す全体システム図である。
図5において、8、9は図1におけるものと同一のものである。電灯線情報配信センター5(配信装置)は、気象庁の専用線に接続され、電灯線情報柱上配信装置6により、電灯線通信網を介して計測地点近傍の拠点に設置された電灯線情報受信端末7(受信端末)に緊急地震速報を配信する。
図6は、この発明の実施の形態2による地震動到達判定システムの電灯線信号伝送を用いた情報配信を示すフローチャートである。
Embodiment 2. FIG.
FIG. 5 is an overall system diagram showing an earthquake motion arrival determination system according to Embodiment 2 of the present invention.
In FIG. 5, 8 and 9 are the same as those in FIG. The power line information distribution center 5 (distribution device) is connected to a dedicated line of the Japan Meteorological Agency and receives power line information installed at a base near the measurement point via the power line communication network by the power line information column distribution device 6. The earthquake early warning is distributed to the terminal 7 (receiving terminal).
FIG. 6 is a flowchart showing information distribution using power line signal transmission in the seismic motion arrival determination system according to Embodiment 2 of the present invention.
次に、動作について説明する。
実施の形態2では、緊急地震速報は、気象庁の専用線に接続された電灯線情報配信センター5により受信され、即座にその内容が電灯線情報柱上配信装置6により電灯線通信網を介して、計測地点近傍の拠点に設置された電灯線情報受信端末7に配信される。この電灯線情報受信端末7により受信された緊急地震速報は、地震動到達判定処理システム8によって処理され、高精度データ計測の実施を判定し、その判定結果に従って歪や亀裂の高精度計測が可能な歪亀裂計測装置9が起動されることにより、到達した地震動で揺れている最中の建造物の高精度歪、亀裂データが収集される。
Next, the operation will be described.
In the second embodiment, the earthquake early warning is received by the power line information distribution center 5 connected to the dedicated line of the Japan Meteorological Agency, and the contents are immediately transmitted by the power line information column distribution device 6 via the power line communication network. The information is distributed to the power line information receiving terminal 7 installed at the base near the measurement point. The earthquake early warning received by the power line information receiving terminal 7 is processed by the seismic motion arrival determination processing system 8 to determine whether or not to perform high-precision data measurement, and according to the determination result, high-precision measurement of strain and cracks is possible. When the strain crack measuring device 9 is activated, high-accuracy strain and crack data of the building being shaken by the earthquake motion that has arrived are collected.
以下、実施の形態2の情報配信について図6に基づいて説明する。
図6においては、緊急地震速報を、電灯線通信網を利用して計測地点近傍まで伝達する。
気象庁が設置し管理している全国の地震観測網を通じて、地震を感知したときは(ステップS21)、気象庁は緊急地震速報を作成し、この緊急地震速報は、気象庁と専用線で結んだ電灯線情報配信センター5に配信し(ステップS22)、これを受信した電灯線情報配信センター5は、即座にその内容を光ファイバーで電灯線情報柱上配信装置6に同報配信し(ステップS23)、これを受けた電灯線情報柱上配信装置6は、電灯線通信網を経由して計測地点近傍の拠点に設置された電灯線情報受信端末7に配信し(ステップS24)、電灯線情報受信端末7により受信される(ステップS25)。
電灯線情報受信端末7で受信した緊急地震速報は、実施の形態1と同様に地震動到達判定処理システム8によって処理され、判断結果に従って歪亀裂計測装置9の起動がかかる。
Hereinafter, information distribution according to Embodiment 2 will be described with reference to FIG.
In FIG. 6, the earthquake early warning is transmitted to the vicinity of the measurement point using the power line communication network.
When an earthquake is detected through the national earthquake observation network installed and managed by the Japan Meteorological Agency (step S21), the Meteorological Agency creates an emergency earthquake bulletin, and this emergency earthquake bulletin is a power line connected to the Meteorological Agency by a dedicated line. The power line information distribution center 5 that has received the information is distributed to the information distribution center 5 (step S22), and immediately broadcasts the contents to the power line information column distribution device 6 using an optical fiber (step S23). The power line information pole distribution device 6 that has received the information is distributed to the power line information receiving terminal 7 installed at the base near the measurement point via the power line communication network (step S24), and the power line information receiving terminal 7 (Step S25).
The earthquake early warning received by the power line information receiving terminal 7 is processed by the earthquake motion arrival determination processing system 8 as in the first embodiment, and the strain crack measuring device 9 is activated according to the determination result.
実施の形態2によれば、電灯線信号伝送を利用して緊急地震速報を計測地点まで伝送するので、計測対象建造物が電話線によるインターネットが利用できない場所に対しても電灯線が供給されている場所であれば、安価にシステムが構成できるという効果がある。 According to the second embodiment, since the earthquake early warning is transmitted to the measurement point using the power line signal transmission, the power line is supplied even to the place where the measurement target building cannot use the Internet via the telephone line. The system can be configured at low cost wherever there is.
実施の形態3.
図7は、この発明の実施の形態3による地震動到達判定システムを示す全体システム図である。
図7において、8、9は図1におけるものと同一のものである。準天頂衛星ゲートウェイ局3(配信装置)は、気象庁の専用線に接続され、準天頂衛星を介して計測地点近傍の拠点に設置された衛星受信端末4(受信端末)に緊急地震速報を配信する。
図8は、この発明の実施の形態3による地震動到達判定システムの準天頂衛星を用いた情報配信を示すフローチャートである。
Embodiment 3 FIG.
FIG. 7 is an overall system diagram showing an earthquake motion arrival determination system according to Embodiment 3 of the present invention.
In FIG. 7, 8 and 9 are the same as those in FIG. The quasi-zenith satellite gateway station 3 (distribution device) is connected to a dedicated line of the Japan Meteorological Agency, and distributes the earthquake early warning to the satellite reception terminal 4 (reception terminal) installed at the base near the measurement point via the quasi-zenith satellite. .
FIG. 8 is a flowchart showing information distribution using the quasi-zenith satellite of the earthquake motion arrival determination system according to Embodiment 3 of the present invention.
次に、動作について説明する。
実施の形態3では、緊急地震速報は、気象庁の専用線に接続された準天頂衛星ゲートウェイ局3により受信され、即座にその内容が準天頂衛星を介して計測地点近傍の拠点に設置された衛星受信端末4に配信される。この衛星受信端末4により受信された緊急地震速報は、地震動到達判定処理システム8によって処理され、高精度データ計測の実施を判定し、その判定結果に従って歪や亀裂の高精度計測が可能な歪亀裂計測装置9が起動されることにより、到達した地震動で揺れている最中の建造物の高精度歪、亀裂データが収集される。
Next, the operation will be described.
In the third embodiment, the earthquake early warning is received by the quasi-zenith satellite gateway station 3 connected to the dedicated line of the Japan Meteorological Agency, and the contents are immediately installed at the base near the measurement point via the quasi-zenith satellite. It is distributed to the receiving terminal 4. The earthquake early warning received by the satellite receiving terminal 4 is processed by the seismic motion arrival determination processing system 8 to determine whether or not high-precision data measurement is performed, and according to the determination result, strain and crack can be measured with high accuracy. When the measuring device 9 is activated, high-accuracy strain and crack data of the building being shaken by the earthquake motion that has arrived are collected.
以下、実施の形態3の情報配信について図8に基づいて説明する。
図8においては、緊急地震速報を、準天頂衛星による衛星データ通信機能を利用して計測地点近傍まで伝達する。
気象庁が設置し管理している全国の地震観測網を通じて、地震を感知したときは(ステップS31)、気象庁は緊急地震速報を作成し、この緊急地震速報は、気象庁と専用線で結んだ準天頂衛星ゲートウェイ局3に配信し(ステップS32)、これを受信した準天頂衛星ゲートウェイ局3は、即座にその内容を準天頂衛星にアップリンクし、計測地点近傍の拠点に設置された衛星受信端末4に同報配信する(ステップS33)。緊急地震速報は、衛星受信端末4により受信される(ステップS34)。
衛星受信端末4で受信された緊急地震速報は、実施の形態1と同様に地震動到達判定処理システム8によって処理され、判断結果に従って歪亀裂計測装置9の起動がかかる。
Hereinafter, information distribution according to Embodiment 3 will be described with reference to FIG.
In FIG. 8, the earthquake early warning is transmitted to the vicinity of the measurement point using the satellite data communication function of the quasi-zenith satellite.
When an earthquake is detected through the nationwide seismic observation network installed and managed by the Japan Meteorological Agency (step S31), the Meteorological Agency prepares an emergency earthquake bulletin, and this emergency earthquake bulletin is connected to the Japan Meteorological Agency by a dedicated line. The quasi-zenith satellite gateway station 3, which is distributed to the satellite gateway station 3 (step S 32) and receives it, immediately uplinks the contents to the quasi-zenith satellite and is installed at the base near the measurement point. Is broadcast (step S33). The earthquake early warning is received by the satellite receiving terminal 4 (step S34).
The earthquake early warning received by the satellite receiving terminal 4 is processed by the earthquake motion arrival determination processing system 8 as in the first embodiment, and the strain crack measuring device 9 is activated according to the determination result.
実施の形態3によれば、準天頂衛星の衛星データ通信機能を利用して緊急地震速報を計測地点まで伝送するので、計測対象建造物が山間部や、僻地であっても確実にシステムが構築できるという効果がある。 According to the third embodiment, since the earthquake early warning is transmitted to the measurement point using the satellite data communication function of the quasi-zenith satellite, the system is reliably constructed even if the measurement target building is a mountainous area or a remote area. There is an effect that can be done.
なお、上述の実施の形態1〜実施の形態3では、インターネット、電灯線通信網、準天頂衛星を介する配信を別々に説明したが、これらのネットワークを同時に介して緊急地震速報を送信すれば、より確実に計測地点に到達することができる。 In addition, in the above-described first to third embodiments, the distribution via the Internet, the power line communication network, and the quasi-zenith satellite has been described separately. However, if the earthquake early warning is transmitted simultaneously through these networks, The measurement point can be reached more reliably.
1 インターネット接続端末
2 インターナット配信端末
3 準天頂衛星ゲートウェイ局
4 衛星受信端末
5 電灯線情報配信センター
6 電灯線情報柱上配信装置
7 電灯線情報受信端末
8 地震動到達判定処理システム
9 歪亀裂計測装置
11 データベース
13 地盤情報データベース
15 データベース
DESCRIPTION OF SYMBOLS 1 Internet connection terminal 2 Internat distribution terminal 3 Quasi-zenith satellite gateway station 4 Satellite receiving terminal 5 Power line information distribution center 6 Power line information column top distribution apparatus 7 Power line information receiving terminal 8 Earthquake motion arrival judgment processing system 9 Strain crack measuring apparatus 11 Database 13 Ground Information Database 15 Database
Claims (4)
2. The earthquake motion arrival determination system according to claim 1, wherein the network is a satellite communication via a quasi-zenith satellite.
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2008180515A (en) * | 2007-01-23 | 2008-08-07 | National Research Institute For Earth Science & Disaster Provention | Device, system and method for transmission of tectonic shake data |
JP2009271612A (en) * | 2008-05-01 | 2009-11-19 | Pioneer Electronic Corp | Monitor, monitoring method, monitoring program and recording medium storing monitoring program |
JP2010071853A (en) * | 2008-09-19 | 2010-04-02 | Fujitsu Ltd | Emergency earthquake warning apparatus, method, and program |
JP2015012364A (en) * | 2013-06-27 | 2015-01-19 | 株式会社東芝 | Communication device |
CN116359987A (en) * | 2023-04-03 | 2023-06-30 | 中南大学 | Method and device for identifying lithology of underground rock stratum based on earthquake flash |
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2005
- 2005-05-31 JP JP2005159449A patent/JP2006337083A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2008180515A (en) * | 2007-01-23 | 2008-08-07 | National Research Institute For Earth Science & Disaster Provention | Device, system and method for transmission of tectonic shake data |
JP4526543B2 (en) * | 2007-01-23 | 2010-08-18 | 独立行政法人防災科学技術研究所 | Vibration data transmission device and vibration data transmission system |
JP2009271612A (en) * | 2008-05-01 | 2009-11-19 | Pioneer Electronic Corp | Monitor, monitoring method, monitoring program and recording medium storing monitoring program |
JP2010071853A (en) * | 2008-09-19 | 2010-04-02 | Fujitsu Ltd | Emergency earthquake warning apparatus, method, and program |
JP2015012364A (en) * | 2013-06-27 | 2015-01-19 | 株式会社東芝 | Communication device |
CN116359987A (en) * | 2023-04-03 | 2023-06-30 | 中南大学 | Method and device for identifying lithology of underground rock stratum based on earthquake flash |
CN116359987B (en) * | 2023-04-03 | 2023-12-08 | 中南大学 | Method and device for identifying lithology of underground rock stratum based on earthquake flash |
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