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JPS6129766A - Cable laying speed and laying length measureing instrument - Google Patents

Cable laying speed and laying length measureing instrument

Info

Publication number
JPS6129766A
JPS6129766AJP15224684AJP15224684AJPS6129766AJP S6129766 AJPS6129766 AJP S6129766AJP 15224684 AJP15224684 AJP 15224684AJP 15224684 AJP15224684 AJP 15224684AJP S6129766 AJPS6129766 AJP S6129766A
Authority
JP
Japan
Prior art keywords
cable
speed
speedometer
laying
length
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.)
Pending
Application number
JP15224684A
Other languages
Japanese (ja)
Inventor
Hideo Kishimoto
岸本 秀夫
Eiji Ueda
上田 栄司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC CorpfiledCriticalNEC Corp
Priority to JP15224684ApriorityCriticalpatent/JPS6129766A/en
Publication of JPS6129766ApublicationCriticalpatent/JPS6129766A/en
Pendinglegal-statusCriticalCurrent

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Abstract

PURPOSE:To find a cable laying speed and cable length with high accuracy by providing a sensor coil and speedometer, timer, integrator, etc. and by detecting correctly the cable moving speed. CONSTITUTION:A sensor coil 3 is arranged around a submarine cable 1, one end of a signal cable 5 is connected to the coil 3 and the other end is connected to a speedometer 4. The output terminal of the speedometer 4 is connected to one end of a signal cable 5' and the other end of the cable 5' is connected to a timer 6 through an integrator 7. The induced voltage proportionate to the change in the moving speed of the cable 1 is generated on the coil 3 and inputted into the speedometer 4 through the cable 4. Integrating the induced voltage thereof the voltage in proportion to the moving speed of the cable 1 is obtd. and the moving speed of the cable is displayed with amplifying by the speedometer 4. Converting the intergrated value of the voltage and time into a distance the laying length of the cable is displayed as well.

Description

Translated fromJapanese

【発明の詳細な説明】〔技術分野〕本発明は海底ケーブルの布設工事において、ケープルシ
、プよル繰シ出される海底ケーブルの布設速度および布
設されるケーブル長を計測する測定装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a measuring device for measuring the laying speed and length of a submarine cable being laid out during submarine cable laying work.

〔従来技術〕[Prior art]

従来ケーブル布設船により布設する海底ケーブルの布設
速度は、ケーブルの繰り出しを行うケーブルエンジンの
駆動速度がケーブル布設速度に等しいとして、ケーブル
エンジンの速度を測定スるか、または、布設されるケー
ブルにホイールを押し付けてケーブルの動きKより回転
するホ摺「の廻転速度を海底ケーブルの布設速度として
これを速度計で読取って求め、布設されるケーブル長さ
は、前記ケーブル布設速度と時間との積を積算して求め
られている。
Conventionally, the laying speed of submarine cables laid by cable laying ships can be determined by measuring the speed of the cable engine, assuming that the driving speed of the cable engine that unwinds the cable is equal to the cable laying speed, or by measuring the speed of the cable engine, or by setting a wheel on the cable being laid. The rotational speed of the hosuri, which rotates due to the movement of the cable K, is determined by reading it with a speedometer as the laying speed of the submarine cable, and the length of the cable to be laid is calculated by multiplying the cable laying speed by the time. It is calculated by adding up.

しかし、これら従来の装置では、移動しているケーブル
とケーブルエンジン又はホイールとの間にすべりが発生
することがあシ、正確なケーブル移動速度を検出するこ
とは困難である。特に為速度又は無負荷状態でケーブル
を繰シ出す場合は、ケーブルとケーブルエンジン又はホ
イールとの間のすべりが一段と大幅に起シやすく、ケー
ブルの繰り出し状態によってはケーブル長の指示値に1
0%を越す誤差を発生する事もある等の欠点があるO〔発明の目的〕本発明の目的は、いかなるケーブル繰り出し条件におい
ても、正確にケーブル移動速度を検出し、ケーブル布設
速度及び布設するケーブル長を精度高く求めるケーブル
布設速度および布設長測定装置を提供することにある。
However, with these conventional devices, slippage may occur between the moving cable and the cable engine or wheel, making it difficult to accurately detect the speed of cable movement. Particularly when the cable is paid out at high speeds or under no load conditions, slippage between the cable and the cable engine or wheel is much more likely to occur, and depending on the cable payout condition, the indicated value of the cable length may
O [Object of the Invention] The object of the present invention is to accurately detect the cable moving speed under any cable feeding conditions, and to determine the cable laying speed and the cable laying speed. An object of the present invention is to provide a cable installation speed and installation length measuring device that can accurately determine the cable length.

〔発明の構成〕[Structure of the invention]

本発明のケーブル布設速度および布設長測定装置は、給
電されているケーブルと、前記ケーブルの周囲に設けら
れ、前記ケーブルの発生する磁界により電圧を誘起する
センサーコイルと、前記セが#1ソ定速度で布設される
時間を計測記憶するタイマーと、前記速度計の速度デー
タの前記タイマーの時間データとの積を積算して、布設
されるケーブルの長さを表示するntn計とを有するこ
とを特徴とする。
The cable installation speed and installation length measuring device of the present invention includes a cable being supplied with power, a sensor coil provided around the cable and inducing a voltage by a magnetic field generated by the cable, and a The present invention includes a timer that measures and stores the length of time the cable is laid at a speed, and an ntn meter that integrates the product of the speed data of the speedometer and the time data of the timer and displays the length of the cable to be laid. Features.

〔原理と作用〕[Principle and operation]

給電状態にあるケーブルはビオ・サバールの法則によシ
、そのケーブルと同心円の一定の強さの磁界を発生し、
ケーブルの移動に伴い、前記磁束も移動するので、ケー
ブルの周囲の磁界中の単位面積中を単位時間に通る磁束
は、ケーブルの速度が変化すれば変化する。コイルに誘
起する誘起電圧は、コイル内を通る磁束の単位時間中の
変化に比例することが知られている。海底ケーブルは布
設工事中、常時給電状態になっているので、布設作業中
のケーブルの通路にコイルを設け、ケーブルの移動速屁
が変化して生ずる単位時間内の磁束の変化によシ前記コ
イルに誘起する電圧を積算し、ケーブルの移動速度を求
め、この求められた速度をタイマーのメモリーに記憶さ
れた時間に関し積分演算し、既に布設されたケーブル長
を求めるものである。
According to the Biot-Savart law, a energized cable generates a magnetic field of constant strength concentric with the cable,
As the cable moves, the magnetic flux also moves, so the magnetic flux that passes per unit time in a unit area in the magnetic field around the cable changes as the speed of the cable changes. It is known that the induced voltage induced in a coil is proportional to the change in magnetic flux passing through the coil per unit time. Submarine cables are constantly supplied with power during installation work, so a coil is installed in the path of the cable during installation work, and the change in magnetic flux within a unit time caused by changes in the cable's moving speed is used to energize the coil. The cable movement speed is determined by integrating the voltage induced in the cable, and the calculated speed is integrated over the time stored in the timer's memory to determine the length of the cable that has already been laid.

〔実施例〕〔Example〕

第1図は本発明のケーブル布設長測定装置の一実施例を
示す構成図、第2図は第1図の海底ケーブルとセンサー
コイルの位置関係を示す配置図である。第1図において
、1は布設中の海底ケーブルであり、第2図に示すよう
に、海底ケーブル10周辺に4個のセンサーコイル3が
、磁界の方向におのおののセンサーコイル3の中心軸が
一致するようにケーブルと同心円上に配置され、前記4
個のコイルのおのおのに信号ケーブル5の一端が接続さ
れ、その他端が速度計4に接続をれている。
FIG. 1 is a configuration diagram showing an embodiment of the cable installation length measuring device of the present invention, and FIG. 2 is a layout diagram showing the positional relationship between the submarine cable and the sensor coil in FIG. 1. In Fig. 1, 1 is a submarine cable that is being laid, and as shown in Fig. 2, four sensor coils 3 are arranged around the submarine cable 10, and the central axis of each sensor coil 3 is aligned with the direction of the magnetic field. It is arranged concentrically with the cable so that the
One end of a signal cable 5 is connected to each of the coils, and the other end is connected to a speedometer 4.

この速度計4の出力端は信号ケーブル5′の一端に接続
され、信号ケーブル5′の他端は積算計7に接続され、
積算計7はタイマー6に接続されている。
The output end of this speedometer 4 is connected to one end of the signal cable 5', and the other end of the signal cable 5' is connected to the totalizer 7.
Totalizer 7 is connected to timer 6.

ケーブル布設船より繰り出される海底クープル1はその
端から陸上端局または、ケーブル布設船上の船上端局に
おいて給電されているので、海底ケーブル1の周囲に配
置されたセンサコイル3には、海底ケーブル1の移動速
度が変化する時にその速度変化に比例した誘起電圧が発
生するのこの誘起電圧は、信号ケーブル5を通って速度
計4に入力され海底ケーブル1が布設され始めた時から
のこれら誘起電圧を積算すると、海底ケーブル1の移動
速度にはソ比例する電圧が得られ、この電圧を速度計4
で増幅して得られる電圧■sを速度に換算して、海底ケ
ーブルの移動速度を表示し、さらにケーブル5′により
1!圧Vsを積算計7に入力する。積算計7に接続され
るタイマー6にて、電圧■8が変化する時刻より次に電
圧■sが変化する時刻までの時間すなわち、はソ一定速
度で海底ケーブル1が繰出される時間tを計測し、積算
計7は、電圧v8と時間tの積を、電圧Vsが変化する
度に積算する。このtEVsと時刻tの積算値は、海底
ケーブルの移動速度と時間、すなわち海底グープルの移
動距離に比例することとなるので、V5X  tの積算
値を距離に換算して、海底ケーブルの布設長を表示する
Since the submarine couple 1 unwound from the cable laying ship is supplied with power from its end to a land terminal station or an onboard terminal station on the cable laying vessel, the sensor coil 3 arranged around the submarine cable 1 is supplied with power from the submarine cable 1. When the moving speed of the submarine cable 1 changes, an induced voltage proportional to the speed change is generated. This induced voltage is input to the speedometer 4 through the signal cable 5, and these induced voltages are generated from the time when the submarine cable 1 begins to be laid. By integrating , a voltage proportional to the moving speed of the submarine cable 1 is obtained, and this voltage is applied to the speedometer 4.
Convert the voltage ■s obtained by amplifying it into speed to display the moving speed of the submarine cable, and further increase the speed by 1! with cable 5'. The pressure Vs is input into the totalizer 7. A timer 6 connected to the totalizer 7 measures the time t from the time when the voltage 8 changes until the next time the voltage s changes, that is, the time t during which the submarine cable 1 is fed out at a constant speed. However, the integrator 7 integrates the product of the voltage v8 and the time t every time the voltage Vs changes. The integrated value of this tEVs and time t is proportional to the moving speed and time of the submarine cable, that is, the moving distance of the submarine group, so the integrated value of V5X t is converted to distance to calculate the laying length of the submarine cable. indicate.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、ケーブルの速度検出に装置間のスリ、
プ速度、検出部の温度、環境による変形および検出部の
摩耗等によって誤差を生ずる機械的な要素を廃し、電気
的に速度を検出することKよζ高精度のケーブル布設速
度および布設長の測定が可能となる。
According to the present invention, there is no need to remove slippage between devices for cable speed detection.
Mechanical elements that cause errors due to cable speed, temperature of the detection part, deformation due to the environment, wear of the detection part, etc. are eliminated, and the speed is detected electrically.Highly accurate measurement of cable laying speed and length becomes possible.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示す構成図であり、第2図
は第1図における海底ケーブルとセンサーコイルの位置
関係を示す配置図である。1・・・・・・海底ケーブル、2・・・・・・磁力線、
3・・・・・センサーコイル、4・・・・・・速度計、
5.5’・・・・・・信号ケーブル、6・・・・・・タ
イマー、7・・・・・・積算計。代理人 弁理士  内 原   音臀2図
FIG. 1 is a configuration diagram showing an embodiment of the present invention, and FIG. 2 is a layout diagram showing the positional relationship between the submarine cable and the sensor coil in FIG. 1. 1... Submarine cable, 2... Magnetic field lines,
3...Sensor coil, 4...Speedometer,
5.5'... Signal cable, 6... Timer, 7... Totalizer. Agent Patent Attorney Uchihara Otogi 2

Claims (1)

Translated fromJapanese
【特許請求の範囲】[Claims]給電されているケーブルと、前記ケーブルの周囲に設け
られ、前記ケーブルの発生する磁界により電圧を誘起す
るセンサーコイルと、前記センサーコイルに誘起した電
圧を積算して前記ケーブルの布設速度を計測し、表示す
る速度計と、ケーブルがほゞ定速度で布設される時間を
計測記憶するタイマーと、前記速度計の速度データと前
記タイマーの時間データとの積を積算して、布設される
ケーブルの長さを表示する積算計とを有することを特徴
とするケーブル布設速度および布設長測定装置。
A cable being supplied with power, a sensor coil provided around the cable and inducing a voltage by a magnetic field generated by the cable, and measuring the installation speed of the cable by integrating the voltage induced in the sensor coil, A speedometer to display, a timer to measure and store the time during which the cable is laid at a substantially constant speed, and the length of the cable to be laid is calculated by integrating the product of the speed data of the speedometer and the time data of the timer. 1. A cable installation speed and cable installation length measuring device, characterized in that it has a totalizer that displays cable installation speed and installation length.
JP15224684A1984-07-231984-07-23Cable laying speed and laying length measureing instrumentPendingJPS6129766A (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP15224684AJPS6129766A (en)1984-07-231984-07-23Cable laying speed and laying length measureing instrument

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP15224684AJPS6129766A (en)1984-07-231984-07-23Cable laying speed and laying length measureing instrument

Publications (1)

Publication NumberPublication Date
JPS6129766Atrue JPS6129766A (en)1986-02-10

Family

ID=15536289

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP15224684APendingJPS6129766A (en)1984-07-231984-07-23Cable laying speed and laying length measureing instrument

Country Status (1)

CountryLink
JP (1)JPS6129766A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
CN104215791A (en)*2014-08-252014-12-17山西科为感控技术有限公司Non-contact type steel wire rope tacho-generator
JP2025512283A (en)*2023-02-032025-04-17江陰天潤信息技術有限公司 Speed measurement method and device for electromagnetic non-contact online length measurement of steel wire

Cited By (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
CN104215791A (en)*2014-08-252014-12-17山西科为感控技术有限公司Non-contact type steel wire rope tacho-generator
JP2025512283A (en)*2023-02-032025-04-17江陰天潤信息技術有限公司 Speed measurement method and device for electromagnetic non-contact online length measurement of steel wire

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