JP2923564B2 - Delay time correction device for waveform telemetry device - Google Patents
Delay time correction device for waveform telemetry deviceInfo
- Publication number
- JP2923564B2 JP2923564B2 JP1289319A JP28931989A JP2923564B2 JP 2923564 B2 JP2923564 B2 JP 2923564B2 JP 1289319 A JP1289319 A JP 1289319A JP 28931989 A JP28931989 A JP 28931989A JP 2923564 B2 JP2923564 B2 JP 2923564B2
- Authority
- JP
- Japan
- Prior art keywords
- waveform
- delay time
- transmission
- synchronization signal
- master station
- 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
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
- Geophysics And Detection Of Objects (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は地震などの波形観測システムにおいて、波形
データの収集を行なう波形遠隔測定装置、特に波形デー
タの伝送遅延時間を容易且つ正確に補正できる波形遠隔
測定装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention can easily and accurately correct a transmission delay time of a waveform data in a waveform observing system for an earthquake or the like, particularly a waveform telemetry device for collecting waveform data. The present invention relates to a waveform telemetry device.
従来のこの種の波形遠隔測定装置を、地震波形の測定
装置を例に説明する。This type of conventional waveform remote measuring device will be described by taking a seismic waveform measuring device as an example.
第２図は上記地震波形遠隔測定装置の一構成例を示す
図である。図示するように、親局10と遠隔地の子局20と
が専用回線30で接続されている。FIG. 2 is a diagram showing an example of the configuration of the above-mentioned seismic waveform remote measuring device. As shown in the figure, a master station 10 and a remote slave station 20 are connected by a dedicated line 30.
11は標準周波数局（以下、単に「JJY」と称する）の
電波を受信するためのアンテナ、12はJJYを受信し時刻
信号を出力するための受信装置、13は伝送装置、14は親
局10で直接受信したJJYのパルスと子局20で受信され親
局10に送られてきたJJYのパルスを記録するための記録
装置である。これらアンテナ11、受信装置12、伝送装置
13及び記録装置14は親局10に設けられる。11 is an antenna for receiving radio waves of a standard frequency station (hereinafter simply referred to as "JJY"), 12 is a receiving device for receiving JJY and outputting a time signal, 13 is a transmitting device, and 14 is a master station 10. This is a recording device for recording the JJY pulse directly received by the slave station 20 and the JJY pulse received by the slave station 20 and sent to the master station 10. These antenna 11, receiving device 12, transmission device
13 and the recording device 14 are provided in the master station 10.
21はJJYの電波を受信するためのアンテナ、22はJJYを
受信し時刻信号を出力する受信装置、23は伝送装置であ
る。これらアンテナ21、受信装置22及び伝送装置23は子
局20に設けられる。21 is an antenna for receiving JJY radio waves, 22 is a receiving device for receiving JJY and outputting a time signal, and 23 is a transmitting device. The antenna 21, the receiving device 22, and the transmitting device 23 are provided in the slave station 20.
上記構成のシステムにおいて、JJYによる標準時刻の
パルスを伝送装置23より専用回線30を介して送信し、こ
れを受けた親局10の伝送装置13は記録装置14に送りこれ
を記録する（この波形をＡとする）。また、親局10でも
別にJJYによる標準時間のパルスを記録装置14に送りこ
れ記録する（この波形をＢとする）。In the system having the above configuration, the JJY standard time pulse is transmitted from the transmission device 23 via the dedicated line 30, and the transmission device 13 of the master station 10 receiving the pulse transmits the pulse to the recording device 14 and records it (this waveform A). Also, the master station 10 separately sends a pulse of a standard time according to JJY to the recording device 14 and records it (this waveform is B).
これら波形A,Bを比較することにより、専用回線30等
に起因する親局10におけるデータ収集時刻の遅れ（遅延
時間：Δｔ）を知り、震源計算時の補正値として使用す
る。By comparing these waveforms A and B, the delay (delay time: Δt) of the data collection time in the master station 10 due to the dedicated line 30 or the like is known and used as a correction value at the time of epicenter calculation.
しかしながら、上記従来構成の波形遠隔測定装置にお
いては、遅延時間の測定の際、アンテナ11、受信装置1
2、アンテナ21及び受信装置22のJJYを受信する装置や記
録装置14を各局に持ち込んで実測する必要があり、また
その実測による補正値は固定値となるため設置条件、例
えば専用回線ルート等による遅延時間変動に対応できな
いという問題があった。However, in the above-described conventional waveform telemetry device, when measuring the delay time, the antenna 11 and the receiving device 1 are used.
2.It is necessary to bring a device that receives the JJY of the antenna 21 and the receiving device 22 and the recording device 14 to each station and perform actual measurement, and the correction value based on the actual measurement is a fixed value, so that it depends on installation conditions, such as a dedicated line route. There was a problem that delay time fluctuation could not be coped with.
本発明は上述の点に鑑みてなされたもので、上記の如
く遅延時間の測定の際に、JJYの受信装置や記録計を持
ち込んで実測する必要があることや、実測値が固定値の
ため環境条件による遅延時間の変化にタイムリーに対応
することができない等の問題点を除去するために遅延時
間の測定と補正を自動化し、遅延時間補正に優れた波形
遠隔測定装置を提供することを目的とする。The present invention has been made in view of the above points, and when measuring the delay time as described above, it is necessary to bring in a JJY receiving device or a recorder to perform actual measurement, or because the actual measured value is a fixed value. It is an object of the present invention to provide a waveform telemetry device that automatically measures and corrects a delay time to eliminate problems such as a failure to cope with a change in the delay time due to environmental conditions in a timely manner, and that is excellent in delay time correction. Aim.
上記課題を解決するため本発明は、親局の伝送装置と
子局の伝送装置を通信回線で接続し、子局で観測した波
形を親局に通信回線を介して伝送する波形遠隔測定装置
において、親局の伝送装置に同期信号を子局に対して定
期的に発信する同期信号発生回路を設けると共に、子局
の伝送装置に親局の同期信号発生回路からの同期信号を
受信し、該同期信号に対して返信信号を発する応答回路
を設け、更に、親局には解析回路と出力制御回路を設
け、該解析回路は同期信号発生回路からの同期信号の送
信時刻と応答回路からの返信信号の受信時刻との差Δｔ
を算出すると共に、該差Δｔの多数回の算出値の平均値
の1/2を通信回線の伝送遅延時間として求め、該出力制
御回路は子局からの観測波形の到達時刻を該伝送遅延時
間で自動的に補正することを特徴とする 〔作用〕 波形遠隔測定装置を上記の如く構成することにより、
親局の伝送装置の同期信号発生回路より送信される同期
信号は子局の伝送装置の応答回路に入り、親局に対して
応答信号を送る。この信号は親局の伝送装置の解析回路
で解析され、同期信号の送信時刻と応答信号の受信時刻
との差Δｔを算出すると共に、該差Δｔの多数回の算出
値の平均値の1/2を通信回線の伝送遅延時間として求
め、親局でのデータ出力タイミングを絶対時刻に対して
所定時間遅延させて出力し、親局が子局から受信データ
を出力する時刻を前記所定時間から前記伝送遅延時間を
減算することにより遅延時間の補正を行なうことができ
る。In order to solve the above problems, the present invention relates to a waveform telemetry device that connects a transmission device of a master station and a transmission device of a slave station via a communication line, and transmits a waveform observed at the slave station to the master station via the communication line. A synchronization signal generation circuit for periodically transmitting a synchronization signal to the slave station in the transmission device of the master station, and receiving a synchronization signal from the synchronization signal generation circuit of the master station in the transmission device of the slave station; A response circuit for issuing a reply signal to the synchronization signal is provided. Further, an analysis circuit and an output control circuit are provided in the master station. The analysis circuit transmits the synchronization signal transmission time from the synchronization signal generation circuit and the response from the response circuit. Difference Δt from signal reception time
The output control circuit calculates the arrival time of the observed waveform from the slave station by calculating the half of the average value of the multiple calculated values of the difference Δt as the transmission delay time of the communication line. [Function] By configuring the waveform telemetry device as described above,
The synchronization signal transmitted from the synchronization signal generation circuit of the transmission device of the master station enters the response circuit of the transmission device of the slave station, and sends a response signal to the master station. This signal is analyzed by the analysis circuit of the transmission device of the master station to calculate the difference Δt between the transmission time of the synchronization signal and the reception time of the response signal, and to calculate 1/1 of the average value of a large number of calculated values of the difference Δt. 2 is determined as the transmission delay time of the communication line, the data output timing at the master station is output with a predetermined time delay relative to the absolute time, and the time at which the master station outputs the received data from the slave station is calculated from the predetermined time. The delay time can be corrected by subtracting the transmission delay time.
以下、本発明の実施例を図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明に係る波形遠隔測定装置の遅延時間補
正装置の構成を示すブロック図である。同図において、
第２図と同一符号を付した部分は同一部分を示す。第１
図に示すように、親局の伝送装置13には同期信号発生回
路13−１、解析回路13−２及び出力制御回路13−３が設
けられ、子局の伝送装置23には応答回路23−１が設けら
れている。FIG. 1 is a block diagram showing a configuration of a delay time correction device of a waveform telemetry device according to the present invention. In the figure,
The parts denoted by the same reference numerals as those in FIG. 2 indicate the same parts. First
As shown in the figure, the transmission device 13 of the master station is provided with a synchronization signal generation circuit 13-1, an analysis circuit 13-2, and an output control circuit 13-3, and the transmission device 23 of the slave station has a response circuit 23-. 1 is provided.
親局の伝送装置13の同期信号発生回路13−１より送信
される同期信号は子局の伝送装置23の応答回路23−１に
入り、親局に対して応答信号を送る。この信号は親局内
で解析回路13−２で解析され送信時刻と受信時刻との差
Δｔを算出し、この動作を多数回（例えば10,000回）繰
り返し、Δｔの平均値▲▼を求め▲▼/2を伝送
遅延時間とする。The synchronization signal transmitted from the synchronization signal generation circuit 13-1 of the transmission device 13 of the master station enters the response circuit 23-1 of the transmission device 23 of the slave station, and sends a response signal to the master station. This signal is analyzed by the analysis circuit 13-2 in the master station, and the difference Δt between the transmission time and the reception time is calculated. This operation is repeated many times (for example, 10,000 times), and the average value Δt of Δt is determined. Let 2 be the transmission delay time.
遅延時間補正方法としては、親局でのデータ出力タイ
ミングを出力制御回路13−３で絶対時刻に対して予め時
間Ｔ（例えば0.5sec）遅延させて出力し、親局が子局か
ら受信したデータを出力する時刻をＴ−（▲▼/2）
とすることにより遅延時間の補正を行なう。As a delay time correction method, the data output timing at the master station is output with a time T (for example, 0.5 sec) delayed in advance by the output control circuit 13-3 with respect to the absolute time, and the master station outputs T- (▲ ▼ / 2)
By doing so, the delay time is corrected.
以上説明したように本発明によれば、親局の伝送装置
に同期信号を子局に対して定期的に発信する同期信号発
生回路を設けると共に、子局の伝送装置に親局の同期信
号発生回路からの同期信号を受信して返信信号を発する
応答回路を設け、親局には解析回路と出力制御回路を設
け、該解析回路で通信回線の伝送遅延時間を求め、該出
力制御回路で子局からの観測波形の到達時刻を該伝送遅
延時間で自動的に補正するので、観測波形の伝送遅延時
間を常時（定期的に）計測し、波形の到達時間を自動的
に補正できるから、波形遠隔測定装置の伝送遅延時間の
補正が飛躍的に容易となる。また、伝送遅延時間の補正
値が周囲の環境条件の変化に追従することにより、一層
正確な伝送遅延時間の補正値が得られる。As described above, according to the present invention, a synchronization signal generation circuit for periodically transmitting a synchronization signal to a slave station is provided in the transmission device of the master station, and the synchronization signal generation circuit of the master station is provided in the transmission device of the slave station. A response circuit for receiving a synchronization signal from the circuit and generating a return signal is provided.An analysis circuit and an output control circuit are provided in the master station. The analysis circuit determines the transmission delay time of the communication line. Since the arrival time of the observed waveform from the station is automatically corrected with the transmission delay time, the transmission delay time of the observed waveform is always (periodically) measured, and the arrival time of the waveform can be automatically corrected. Correction of the transmission delay time of the telemetry device is greatly facilitated. Further, since the correction value of the transmission delay time follows a change in the surrounding environmental conditions, a more accurate correction value of the transmission delay time can be obtained.
第１図は本発明に係る波形遠隔測定装置の遅延時間補正
装置の構成を示すブロック図、第２図は上記地震波形遠
隔測定装置の一例構成例を示す図である。 図中、10……親局、13……伝送装置、13−１……同期信
号発生回路、13−２……解析回路、13−３……出力制御
回路、20……子局、23……伝送装置、23−１……応答回
路、30……専用回線。FIG. 1 is a block diagram showing a configuration of a delay time correcting device of a waveform remote measuring device according to the present invention, and FIG. 2 is a diagram showing an example of a configuration example of the seismic waveform remote measuring device. In the figure, 10: master station, 13: transmission device, 13-1: synchronization signal generation circuit, 13-2: analysis circuit, 13-3: output control circuit, 20: slave station, 23: ... Transmission equipment, 23-1 ... Response circuit, 30 ... Dedicated line.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) G01V 1/22 G08C 25/00,15/06 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 6 , DB name) G01V 1/22 G08C 25 / 00,15 / 06
Claims (1)
線で接続し、子局で観測した波形を親局に前記通信回線
を介して伝送する波形遠隔測定装置において、 前記親局の伝送装置に同期信号を子局に対して定期的に
発信する同期信号発生回路を設けると共に、前記子局の
伝送装置に前記親局の同期信号発生回路からの同期信号
を受信し、該同期信号に対して返信信号を発する応答回
路を設け、 更に、前記親局には解析回路と出力制御回路を設け、該
解析回路は前記同期信号発生回路からの同期信号の送信
時刻と前記応答回路からの返信信号の受信時刻との差Δ
ｔを算出すると共に、該差Δｔの多数回の算出値の平均
値の1/2を前記通信回線の伝送遅延時間として求め、該
出力制御回路は前記子局からの観測波形の到達時刻を該
伝送遅延時間で自動的に補正することを特徴とする波形
遠隔測定装置。1. A waveform telemetry device for connecting a transmission device of a master station and a transmission device of a slave station via a communication line and transmitting a waveform observed at the slave station to the master station via the communication line. A transmission signal generator for periodically transmitting a synchronization signal to the slave station in the transmission device, and receiving a synchronization signal from the synchronization signal generation circuit of the master station in the transmission device of the slave station; A response circuit for issuing a reply signal to the signal is provided.Further, the master station is provided with an analysis circuit and an output control circuit, and the analysis circuit transmits the synchronization signal from the synchronization signal generation circuit at the transmission time and the response circuit. Difference from the reception time of the return signal of
and calculating the half of the average value of the calculated values of the difference Δt as the transmission delay time of the communication line, and the output control circuit calculates the arrival time of the observed waveform from the slave station as the transmission delay time. A waveform telemetry device for automatically correcting a transmission delay time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1289319A JP2923564B2 (en) | 1989-11-06 | 1989-11-06 | Delay time correction device for waveform telemetry device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1289319A JP2923564B2 (en) | 1989-11-06 | 1989-11-06 | Delay time correction device for waveform telemetry device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03150489A JPH03150489A (en) | 1991-06-26 |
| JP2923564B2 true JP2923564B2 (en) | 1999-07-26 |
Family
ID=17741654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1289319A Expired - Fee Related JP2923564B2 (en) | 1989-11-06 | 1989-11-06 | Delay time correction device for waveform telemetry device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2923564B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2120826B1 (en) * | 1994-11-24 | 1999-06-01 | Univ Sevilla | SYSTEM FOR THE MEASUREMENT OF DELAYS IN DISTRIBUTED INSTRUMENTATION. |
| JP5010927B2 (en) * | 2007-01-15 | 2012-08-29 | 株式会社三菱東京Ｕｆｊ銀行 | Authentication apparatus and program |
| JP6295850B2 (en) * | 2014-06-20 | 2018-03-20 | 株式会社リコー | Information processing apparatus, information processing method, and information processing program |
-
1989
- 1989-11-06 JP JP1289319A patent/JP2923564B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03150489A (en) | 1991-06-26 |
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