JPH07159530A - Monitoring device for running anchor - Google Patents

Monitoring device for running anchor

Info

Publication number
JPH07159530A
JPH07159530A JP5306612A JP30661293A JPH07159530A JP H07159530 A JPH07159530 A JP H07159530A JP 5306612 A JP5306612 A JP 5306612A JP 30661293 A JP30661293 A JP 30661293A JP H07159530 A JPH07159530 A JP H07159530A
Authority
JP
Japan
Prior art keywords
ship
anchor
circle
radius
monitoring
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.)
Granted
Application number
JP5306612A
Other languages
Japanese (ja)
Other versions
JP3208625B2 (en
Inventor
Kazuo Okamoto
和男 岡本
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.)
NIPPON KOURO HIYOUSHIKI KYOKAI
Oki Electric Industry Co Ltd
Original Assignee
NIPPON KOURO HIYOUSHIKI KYOKAI
Oki Electric Industry Co Ltd
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 NIPPON KOURO HIYOUSHIKI KYOKAI, Oki Electric Industry Co Ltd filed Critical NIPPON KOURO HIYOUSHIKI KYOKAI
Priority to JP30661293A priority Critical patent/JP3208625B2/en
Publication of JPH07159530A publication Critical patent/JPH07159530A/en
Application granted granted Critical
Publication of JP3208625B2 publication Critical patent/JP3208625B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To enable a running anchor to be monitored even without experience and knowledge of operations by automatically determining the distance from a ship to be monitored to an anchor and the center and radius of a running-anchor monitoring circle while taking into account meteorological conditions and the length of the ship body. CONSTITUTION:When a ship to be monitored is determined as having anchored on the display screen of a radar 1, a running-anchor-monitoring-circle setting means 11 receives inputs of wind speed W, the direction D of wind, the name and identification number ID of the ship from a data input device 9 and an input of the length of the ship body from a ship-body length data file 10 and calculates the distance LA from the ship to the anchor and the radius R of a running-anchor monitoring circle. According to the distance LA, the position Pa of the ship when the anchoring is finished, and the direction D of wind, a point windward of the ship position Pa by the distance LA is estimated as the position of the anchor and the center position Po of the running anchor monitoring circle is determined. A warning state judging means 6 provides an output 7 of warning instructions when the distance (r) between the current measured position Pi of the ship to be monitored having the identification number ID and the center position Po of the running anchor monitoring circle for the ship becomes greater than the radius.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、レーダを用いた走錨監
視装置に関し、特に走錨監視サークルの中心及び半径の
設定が気象条件を入力することにより自動的に設定でき
る走錨監視装置に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchor monitoring device using a radar, and more particularly to an anchor monitoring device in which the center and radius of an anchor monitoring circle can be automatically set by inputting weather conditions. It is a thing.

【0002】[0002]

【従来の技術】従来のこの種装置として特開昭61−4
5400号公報に開示された走錨監視装置がある。以
下、この装置について説明する。図7は上記公報に開示
された従来の走錨監視装置の構成を示すブロック図であ
り、同図中1はレーダ、2は信号入力変換器であり、レ
ーダ1に接続され、そのレーダ信号を信号処理してデジ
タル信号として出力するものである。すなわち信号入力
変換器2は錨泊中の船舶のレーダエコー信号を信号処理
し、被走錨監視船舶の位置(以下、観測船位と称す。)
等をデジタル信号に変換すると共に、各々の船舶に対応
した識別番号(以下IDと称す。)の付与を行うもので
ある。3は環境状態入力手段であり、信号入力変換器2
で変換されたデジタル信号を環境状態として入力し、各
々の船舶のIDに対応した観測船位を記憶し、設定して
おくものである。4は操作器であり、各船舶の処理条件
を入力するものである。即ち、この操作器4は、該船舶
から通信等で得られる錨泊地点の中心位置及びその半径
を入力するものである。5は処理条件設定手段であり、
操作器4から入力された処理条件、例えば各船舶のID
に対応した錨泊地点の中心位置と錨泊地点の半径とを記
憶し、設定しておく手段である。6は警報状態判定手段
であり、環境状態入力手段3及び処理条件設定手段5に
よって設定された処理条件を基に、同一IDについて各
船舶の観測船位とその錨泊地点の中心位置との距離差を
算出し、その値があらかじめ設定された距離、すなわち
前述の錨泊地点の半径以上になった時に走錨と見なして
警報状態を例えば出力レジスタ等に設定する。7は動作
警報出力手段であり、前記警報状態を検出し、表示器8
に警報を出力する手段である。なお、これらの手段はい
ずれも周知のディジタル回路及びマイクロプロセッサ等
を用いて構成されている。
2. Description of the Related Art As a conventional device of this type, Japanese Patent Laid-Open No. 61-4
There is an anchor monitoring device disclosed in Japanese Patent No. 5400. Hereinafter, this device will be described. FIG. 7 is a block diagram showing a configuration of a conventional anchorage monitoring device disclosed in the above publication. In FIG. 7, 1 is a radar and 2 is a signal input converter, which is connected to the radar 1 and outputs the radar signal. The signal is processed and output as a digital signal. That is, the signal input converter 2 performs signal processing on the radar echo signal of the ship being anchored, and the position of the driven anchor monitoring ship (hereinafter referred to as the observation ship position).
Etc. are converted into digital signals, and an identification number (hereinafter referred to as an ID) corresponding to each ship is given. Reference numeral 3 is an environmental condition input means, which is a signal input converter 2
The digital signal converted in (1) is input as an environmental state, and the observation ship position corresponding to the ID of each ship is stored and set. Reference numeral 4 denotes an operating device for inputting processing conditions of each ship. That is, the operation device 4 is for inputting the center position and the radius of the anchoring point obtained from the ship by communication or the like. 5 is a processing condition setting means,
The processing conditions input from the controller 4, for example, the ID of each ship
It is a means for storing and setting the center position of the anchor point and the radius of the anchor point corresponding to. Reference numeral 6 denotes an alarm state determination means, which is based on the processing conditions set by the environmental state input means 3 and the processing condition setting means 5 and determines the distance difference between the observation ship position of each ship and the center position of the anchor point for the same ID. When the calculated value is equal to or larger than a preset distance, that is, the radius of the anchor point described above, it is considered as an anchor and the alarm state is set in, for example, an output register. Reference numeral 7 is an operation alarm output means, which detects the alarm state and displays a display 8
Is a means for outputting an alarm to. Each of these means is configured using a well-known digital circuit, microprocessor, and the like.

【0003】従来の走錨監視装置は上記のように構成さ
れ、あらかじめ与えられた錨泊地点の中心位置を位置不
変の定点、つまり走錨監視サークルの中心と仮定し、そ
の中心の位置とレーダにより観測される現在の観測船位
との距離差を算出し、その距離差と該中心にあらかじめ
与えらたれ半径、つまり走錨監視サークルの半径とを比
較し、観測船位が前記サークル内であれば安全であると
判定する。また、前記サークル外に出た時危険と判定
し、警報を発生するものである。
The conventional anchor monitoring system is constructed as described above, and it is assumed that the center position of the anchor point given in advance is a fixed point that does not change in position, that is, the center of the anchor monitoring circle. Calculate the distance difference with the current observation ship position and compare the distance difference with the radius given in advance to the center, that is, the radius of the anchor anchor monitoring circle, and if the observation position is within the circle, it is safe. It is determined that Further, when it goes out of the circle, it is judged as dangerous and an alarm is issued.

【0004】[0004]

【発明が解決しようとする課題】上記のような従来の走
錨監視装置では、走錨監視サークルの中心及び半径を手
動で設定しなければならないという問題があった。ま
た、風速、風向き等の気象条件を加味して設定するため
には運用の経験及びその知識を必要とし、簡単ではない
という問題があった。本発明はかかる問題点を解決する
ためになされたもので、被監視船舶から錨までの距離及
び走錨監視サークルの半径を推定する演算式を用い、こ
の演算式に気象条件及び船体長さを代入することにより
走錨監視サークルの中心及び半径を自動的に求めるよう
にして、運用の経験やその知識がなくても走錨監視がで
きるようにした走錨監視装置を得ることを目的とする。
The above-described conventional anchorage monitoring device has a problem that the center and radius of the anchorage monitoring circle must be manually set. In addition, there is a problem that operation experience and knowledge are required to set in consideration of weather conditions such as wind speed and wind direction, which is not easy. The present invention has been made to solve such a problem, and uses an arithmetic expression for estimating the distance from the monitored vessel to the anchor and the radius of the anchoring surveillance circle, and the meteorological condition and hull length are used in this arithmetic expression. By substituting the center and radius of the anchorage monitoring circle automatically, it is an object to obtain an anchorage monitoring device capable of monitoring anchorage without operation experience or knowledge. .

【0005】[0005]

【課題を解決するための手段】本発明に係る走錨監視装
置は、錨泊中の船舶を観測するレーダと、走錨が監視さ
れる船舶の位置をレーダの信号から求めるとともに該船
舶を識別する識別番号を設定する船位観測手段と、被監
視船舶から錨までの距離及び走錨監視サークルの半径を
推定する演算式を用い、この演算式に被監視船舶の船体
長及び風速を代入して走錨監視サークルの半径を求める
と共に錨までの距離と風向きとから走錨監視サークルの
中心位置を定める走錨監視サークル設定手段と、船位観
測手段から得られる被監視船舶の現在の位置と、走錨監
視サークル設定手段により設定された走錨監視サークル
の中心位置との距離差を算出し、その値が該走錨監視サ
ークルの半径以上になった時に警報指示を出力する警報
指示出力手段とを備えたものである。
SUMMARY OF THE INVENTION A running anchor monitoring device according to the present invention obtains a radar for observing a ship being anchored and a position of the ship whose anchor is to be monitored from a radar signal, and identifies the ship. A ship position observation means for setting an identification number and an arithmetic expression for estimating the distance from the monitored vessel to the anchor and the radius of the anchoring surveillance circle are used, and the vessel length and wind speed of the monitored vessel are substituted into this arithmetic expression for running. Anchor monitoring circle setting means for determining the radius of the anchor monitoring circle and determining the center position of the anchor monitoring circle from the distance to the anchor and the wind direction, and the current position of the monitored vessel obtained from the ship position observation means, and the anchor An alarm instruction output means for calculating a distance difference from the center position of the anchorage monitoring circle set by the monitoring circle setting means and outputting an alarm instruction when the value becomes equal to or larger than the radius of the anchorage monitoring circle. Those were example.

【0006】[0006]

【作用】本発明においては、被監視船舶から錨までの距
離及び走錨監視サークルの半径を推定する演算式を用
い、この演算式に被監視船舶の船体長及び風速を代入し
て走錨監視サークルの半径を求める共に錨までの距離と
風向きとから走錨監視サークルの中心位置を定める走錨
監視サークル設定手段を有するから、走錨監視サークル
の中心位置とその半径が、船体長と気象条件を入力する
ことにより自動的に設定できる。
In the present invention, an arithmetic expression for estimating the distance from the monitored vessel to the anchor and the radius of the anchoring surveillance circle is used, and the vessel length and wind speed of the monitored vessel are substituted into this arithmetic expression to monitor anchorage. The center position of the anchor anchor monitoring circle and its radius are determined based on the ship's length and meteorological conditions because the anchor anchor monitoring circle setting means determines the center position of the anchor anchor monitoring circle from the distance to the anchor and the wind direction. It can be set automatically by inputting.

【0007】[0007]

【実施例】図1は本発明の一実施例の構成を示すブロッ
ク図、図2は走錨監視サークルを説明する説明図、図3
は後述する式(1a)を説明する説明図である。図1に
おいて、図7と同一符号を付した部分は同一部分を示し
ている。9はデータ入力装置で、気象条件である風速W
と風向きD、船名及び識別番号IDを入力する装置であ
る。このデータ入力装置9は、例えばキーボードとヴラ
ウン管表示装置とからなる文字図形入出力装置を使うこ
とができる。気象条件は、気象観測装置等から情報を得
て入力する。識別番号IDは、信号入力変換器2により
レーダエコー信号にIDが付与されると、レーダ1の表
示画面上の船の映像の近傍にIDが表示されるので、こ
の表示を見て入力する。船名については、走行中の船舶
は、レーダで監視されている外に、無線通信や無線電話
による交信が行なわれており、どんな船舶が航行してい
るかがわかっている。また、定期的に航行しているもの
であれば航行計画により、停舶する船があらかじめわか
っている。従って、これらの情報に基づいてレーダの表
示画面上の映像夫々について、その船の船名、及びその
他の情報がわかっているから、レーダの表示画面上の映
像の動きから、どの船舶が投錨したかを判断して、船名
を入力する。なお、以上のようにして船名はわかるが確
認を要するときは船に問い合わせて入力する。或は、船
舶側から投錨したので監視して欲しい旨の連絡があった
場合は、これを受けて船名を入力する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram showing the structure of an embodiment of the present invention, FIG. 2 is an explanatory view for explaining a running anchor monitoring circle, and FIG.
[Fig. 3] is an explanatory diagram illustrating a formula (1a) described later. In FIG. 1, the same reference numerals as those in FIG. 7 denote the same parts. 9 is a data input device, which is a wind speed W that is a weather condition.
It is a device for inputting the wind direction D, the ship name and the identification number ID. As the data input device 9, for example, a character / graphic input / output device including a keyboard and a Vraun tube display device can be used. The weather conditions are input by obtaining information from a weather observation device or the like. When the signal input converter 2 adds the identification number ID to the radar echo signal, the ID is displayed near the image of the ship on the display screen of the radar 1, and therefore the identification number ID is input by observing this display. Regarding the name of the ship, the running ship is being monitored by the radar and also communicating by radio communication or radio telephone, and it is known what kind of ship is sailing. Also, if the ship is sailing regularly, the ship to be stopped is known in advance from the sailing plan. Therefore, since the ship name of the ship and other information are known for each image on the radar display screen based on these information, which ship anchored from the motion of the image on the radar display screen. Enter the name of the ship. If the name of the ship is known but confirmation is required as described above, contact the ship and enter it. Alternatively, when the ship side anchored the ship and received a message from the ship requesting that the ship be monitored, enter the ship name in response to this.

【0008】10は船体長データファイルで、船名とそ
の船体の長さを一覧表にして、予め記憶させた磁気ディ
スクや光ディスクなどによるファイルである。11は走
錨監視サークル設定手段である。この走錨監視サークル
設定手段11は、過去の経験値や統計に基づいて得られ
た下記式(1)と式(2)に、風速Wと船体長Lを代入
して、被走錨監視船舶の中心から錨迄の距離LA 及び走
錨監視サークルの半径Rを算出する。また、算出された
距離LA 、投錨し終った時の船位Pa 及び風向きDを用
いて走錨監視サークルの中心位置P0 を定める。この中
心位置P0 は、図2に示すように船位Pa から風上に距
離LA の地点を錨の位置と推定することにより定める。
なお、図2においてEはレーダ表示画面上の船舶の映像
を示している。以上の演算において、風速Wと風向きD
はデータ入力装置9により入力されたデータを用いる。
投錨し終った時の船位Pa は、例えば前述のようにレー
ダ表示画面上の映像の動きから投錨したことを判断して
船名を入力した時に、信号入力変換器2で変換されたデ
ィジタル信号を取り込む。船体長Lは、船体長データフ
ァイル10を参照して船名に対応した船体長を読み出し
て取り込む。そして、求められた中心位置P0 と半径R
とを、夫々識別番号IDと対応させて記憶しておく。
Reference numeral 10 is a hull length data file, which is a file such as a magnetic disk or an optical disk in which a list of ship names and ship lengths is stored in advance. Reference numeral 11 is a drag anchor monitoring circle setting means. The anchor anchor monitoring circle setting means 11 substitutes the wind speed W and the hull length L into the following formulas (1) and (2) obtained based on past experience values and statistics, and monitors the anchored anchor ship. The distance L A from the center of the anchor to the anchor and the radius R of the anchor anchor monitoring circle are calculated. Further, the center position P 0 of the running anchor monitoring circle is determined using the calculated distance L A , the ship position P a when the anchoring is completed, and the wind direction D. This center position P 0 is determined by estimating the point at a distance L A upwind from the ship position P a as the anchor position, as shown in FIG.
In addition, in FIG. 2, E shows the image of the ship on the radar display screen. In the above calculation, the wind speed W and the wind direction D
Uses the data input by the data input device 9.
The ship position P a at the end of anchoring is, for example, the digital signal converted by the signal input converter 2 when the ship name is input by judging the anchoring from the movement of the image on the radar display screen as described above. Take in. The hull length L refers to the hull length data file 10 to read and fetch the hull length corresponding to the ship name. Then, the obtained center position P 0 and radius R
Are stored in association with the identification number ID.

【0009】 LA =a・f(L)+b・f(W) …… 式(1) R=a・f(L)+c・f(LA ) …… 式(2) ここで、LA :被走錨監視船舶から錨迄の距離[m] L:船体長[m] R:走錨監視サークルの半径[m] a・f(L):Lの関数,aは定数 W:風速[m/s] b・f(W):Wの関数,bは定数 c・f(LA ):LA の関数,cは定数L A = a · f (L) + b · f (W) Formula (1) R = a · f (L) + c · f (L A ) Formula (2) where L A : Distance from the monitored anchor to the anchor [m] L: Ship length [m] R: Radius of the anchor monitoring circle [m] af (L): Function of L, a is a constant W: Wind speed [ m / s] b · f ( W): W function, b is a constant c · f (L a): a function of L a, c is a constant

【0010】次に、具体的な演算例を説明する。先ず、
式(1)は下記式(1a)を演算する。 LA [m]=0.5L+25{[L/50]+4}−4(20−W) ……式(1a) 式(1a)において、25{[L/50]+4}の項の
{[L/50]+4}は錨15の鎖16の節数を求める
項である。この項は例えば、L=150mの船であれ
ば、通常鎖は7節繰り出すという経験に基づいている。
1節は25mであるから、25{[L/50]+4}に
より繰り出した鎖の長さ、つまり図3に示すLB が求ま
る。なお、[L/50]は整数化して演算する。例えば
L=101〜149[m]では101〜149/50=
2.…=2と整数化するものである。0.5Lの項は船
舶の位置は船体の長さ方向の中心位置を基準にするた
め、図3に示すように0.5Lを加えている。なお、以
上は風速を考慮していない長さである。−4(20−
W)の項は、風速によって鎖の長さが変化することを示
す項で、風速が大きい程鎖は長く出すから、LA は大と
なる。次に、式(2)は下記式(2a)を演算する。 R=0.5L+25{[L/50]+4}+0.4LA ……式(2a)
Next, a specific calculation example will be described. First,
Formula (1) calculates the following formula (1a). L A [m] = 0.5L + 25 {[L / 50] +4} -4 (20-W) ... Expression (1a) In the expression (1a), {[[L / 50] +4} of the term [[ L / 50] +4} is a term for obtaining the number of nodes in the chain 16 of the anchor 15. This term is based on the experience that, for a ship with L = 150 m, for example, a normal chain will pay out 7 knots.
Since one segment is 25 m, the length of the chain extended by 25 {[L / 50] +4}, that is, L B shown in FIG. 3, can be obtained. [L / 50] is calculated by converting it into an integer. For example, when L = 101 to 149 [m], 101 to 149/50 =
2. ... = 2 and is made into an integer. The term 0.5L is added to 0.5L as shown in FIG. 3 because the position of the ship is based on the center position in the longitudinal direction of the hull. The above is the length that does not consider the wind speed. -4 (20-
The term W) is a term indicating that the chain length changes depending on the wind speed, and the larger the wind speed, the longer the chain is, and therefore L A becomes large. Next, the equation (2) calculates the following equation (2a). R = 0.5L + 25 {[L / 50] +4} + 0.4LA A formula (2a)

【0011】なお、図1のブロック図に示す各手段はい
ずれも周知のディジタル回路及びマイクロプロセッサ等
を用いて実現可能であり、以下一実施例の動作を図4の
フローチャートに従って説明する。図4は本発明の一実
施例を構成する手段の制御動作を実行させるソフトウエ
アのフローチャートである。先ず、ステップS1〜S4
の処理において、レーダ1からレーダ信号を入力して
(ステップS1)、その中から監視すべき船舶エコーを
指定し(ステップS2)、そのエコーにIDを付与する
(ステップS3)とともにその位置をデジタル信号に変
換し、観測船位として記憶する(ステップS4)処理を
行なう。
Each means shown in the block diagram of FIG. 1 can be realized by using a well-known digital circuit, a microprocessor, etc. The operation of one embodiment will be described below with reference to the flow chart of FIG. FIG. 4 is a flow chart of software for executing the control operation of the means constituting one embodiment of the present invention. First, steps S1 to S4
In the process, the radar signal is input from the radar 1 (step S1), the ship echo to be monitored is designated from the radar signal (step S2), the echo is given an ID (step S3), and its position is digitalized. A process of converting into a signal and storing it as an observation ship position (step S4) is performed.

【0012】ステップS5〜S9は船舶の投錨が終った
時からスターとするステップであり、レーダ1の表示画
面上で船舶が投錨し終ったと判断したら、データ入力装
置9から気象条件として風速W、風向きD、船名及び識
別番号IDを入力する(ステップS6)。走錨監視サー
クル設定手段11は、風速W、風向きD、船名及び識別
番号の各データを入力して(ステップS7)、式(1
a)及び式(2a)を演算し、走錨監視船舶から錨迄の
距離LA 及び走錨監視サークルの半径Rを算出する。ま
た、算出されたLA と投錨が終った時の船位Pa と風向
きDとにより、船位Pa から風上に距離LA の地点を錨
の位置と推定することにより走錨監視サークルの中心位
置P0 を求める(ステップS8)。次に、ステップS3
で付与されたIDと対応させて、ステップS8で算出し
た中心位置P0 と半径Rとを該船舶の走錨監視サークル
データとして記憶する(ステップS9)。
Steps S5 to S9 are steps to start staring after the anchoring of the ship. When it is judged that the anchoring of the ship is completed on the display screen of the radar 1, the data input device 9 determines the wind speed W as the weather condition, The wind direction D, the ship name and the identification number ID are input (step S6). The anchor anchor monitoring circle setting means 11 inputs each data of wind speed W, wind direction D, ship name and identification number (step S7), and formula (1)
a) and equation (2a) are calculated to calculate the distance L A from the anchorage monitoring ship to the anchor and the radius R of the anchorage monitoring circle. Further, by the ship positioning P a and wind direction D when the anchor and the calculated L A is finished, the Hashiikari monitored circles by estimating from the ship position P a and point an anchor position of a distance L A upwind center The position P 0 is obtained (step S8). Next, step S3
The center position P 0 and the radius R calculated in step S8 are stored as the anchor anchor monitoring circle data of the ship in association with the ID given in step S8 (step S9).

【0013】ステップS10〜S13は警報状態判定手
段6が行なうものであり、図5に示す状態を想定して、
あるIDを有する船舶についてその現在の観測船位Pi
と、そのIDに対応した走錨監視サークルの中心位置P
0 との距離差rを算出し、そのIDに対応した走錨監視
サークルの半径Rと比較して、比較の結果を例えばレジ
スタAに、IDに対応した警報指示として出力する。こ
のステップがS14又はS15である。ステップS16
では前述の動作警報出力手段7がレジスタAの内容を、
出力レジスタへ出力し、それに接続された表示器に、各
IDに対応して、「危険」又は「安全」を表示する。
The steps S10 to S13 are performed by the alarm state determination means 6, and assuming the state shown in FIG.
The current observation ship position P i for a ship with an ID
And the center position P of the anchor anchor monitoring circle corresponding to the ID
The distance difference r from 0 is calculated and compared with the radius R of the anchor anchor monitoring circle corresponding to the ID, and the comparison result is output to, for example, the register A as an alarm instruction corresponding to the ID. This step is S14 or S15. Step S16
Then, the operation alarm output means 7 described above changes the contents of the register A
The output is output to the output register, and "danger" or "safety" is displayed on the display connected to the output register in correspondence with each ID.

【0014】図6は本発明の他の実施例の構成を示すブ
ロック図であり、図6において、12は気象観測装置で
ある。前記の実施例では、気象条件は手動で入力してい
たが、この他の実施例は、気象観測装置12から直接デ
ータを取り込むようにしたものである。この他の実施例
は、データ入力装置9から船名と識別番号IDを入力す
ることにより、走錨の監視がスタートする。その他の動
作は上記実施例と同様である。
FIG. 6 is a block diagram showing the configuration of another embodiment of the present invention. In FIG. 6, reference numeral 12 is a weather observation device. In the above-mentioned embodiment, the weather conditions are manually input, but in other embodiments, the data is directly fetched from the weather observation device 12. In the other embodiment, the monitoring of the anchor is started by inputting the ship name and the identification number ID from the data input device 9. Other operations are the same as those in the above embodiment.

【0015】[0015]

【発明の効果】本発明は以上説明した通り、被監視船舶
から錨までの距離及び走錨監視サークルの半径を推定す
る演算式を用い、この演算式に被監視船舶の船体長及び
風速を代入して走錨監視サークルの半径を求めると共に
錨までの距離と風向きとから走錨監視サークルの中心位
置を定める走錨監視サークル設定手段を有するから、走
錨監視サークルの中心位置とその半径が、船体長と気象
条件を入力することにより自動的に設定できる。従っ
て、運用の経験やその知識がなくても、気象条件を加味
した前記中心位置及び半径の設定が簡単にできる。ま
た、前記中心位置や半径を通信等で船舶に問合せるわず
らわしさが解消され、その設定の信頼度も高くなる。
As described above, the present invention uses an arithmetic expression for estimating the distance from the monitored vessel to the anchor and the radius of the anchoring surveillance circle, and substituting the hull length and wind speed of the monitored vessel for this arithmetic expression. And since it has a running anchor monitoring circle setting means for determining the radius of the running anchor monitoring circle and determining the central position of the running anchor monitoring circle from the distance to the anchor and the wind direction, the central position of the running anchor monitoring circle and its radius are: It can be set automatically by entering the ship length and weather conditions. Therefore, it is possible to easily set the center position and the radius in consideration of the meteorological condition without any experience or knowledge of operation. In addition, the troublesomeness of inquiring about the center position and radius to the ship by communication or the like is eliminated, and the reliability of the setting is increased.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例の構成を示すブロック図であ
る。
FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

【図2】走錨監視サークルの説明図である。FIG. 2 is an explanatory diagram of a running anchor monitoring circle.

【図3】式(1a)を説明する説明図である。FIG. 3 is an explanatory diagram illustrating formula (1a).

【図4】本発明の一実施例の動作を説明するフローチャ
ートである。
FIG. 4 is a flowchart illustrating the operation of the embodiment of the present invention.

【図5】走錨監視方法の説明図である。FIG. 5 is an explanatory diagram of a running anchor monitoring method.

【図6】本発明の他の実施例の構成を示すブロック図で
ある。
FIG. 6 is a block diagram showing the configuration of another embodiment of the present invention.

【図7】従来の走錨監視装置の構成を示すブロック図で
ある。
FIG. 7 is a block diagram showing a configuration of a conventional anchorage monitoring device.

【符号の説明】[Explanation of symbols]

1 レーダ 2 信号入力変換器 3 環境状態入力手段 6 警報状態判定手段 7 動作警報出力手段 8 表示器 9 データ入力装置 10 船体長データファイル 11 走錨監視サークル設定手段 12 気象観測装置 E 船舶の映像 W 風速 D 風向き L 船体長 LA 被走錨監視船舶から錨迄の距離 R 走錨監視サークルの半径 Pa 投錨し終った時の船位 P0 走錨監視サークルの中心位置 Pi 観測船位 r P0 とPi との距離差1 radar 2 signal input converter 3 environmental state input means 6 alarm state determination means 7 motion alarm output means 8 display 9 data input device 10 hull length data file 11 anchorage monitoring circle setting means 12 meteorological observation device E ship image W Wind speed D Wind direction L Vessel length L A Distance from the monitored anchor to the anchor R Radius of the anchor monitoring circle P a Position of the anchor when the anchor is completed P 0 Central position of the anchor monitoring circle P i Observing position r P 0 Difference between P i and P i

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 錨泊中の船舶を観測するレーダと、 走錨が監視される船舶の位置を前記レーダの信号から求
めるとともに該船舶を識別する識別番号を設定する船位
観測手段と、 被監視船舶から錨までの距離及び走錨監視サークルの半
径を推定する演算式を用い、この演算式に被監視船舶の
船体長及び風速を代入して前記走錨監視サークルの半径
を求める共に前記錨までの距離と風向きとから前記走錨
監視サークルの中心位置を定める走錨監視サークル設定
手段と、 前記船位観測手段から得られる被監視船舶の現在の位置
と、前記走錨監視サークル設定手段により設定された走
錨監視サークルの中心位置との距離差を算出し、その値
が該走錨監視サークルの半径以上になった時に警報指示
を出力する警報指示出力手段とを備えた走錨監視装置。
1. A radar for observing a ship under anchorage, a ship position observing means for obtaining the position of a ship whose anchor is to be monitored from the radar signal, and setting an identification number for identifying the ship, and a ship to be monitored. To the anchor and the radius of the anchorage monitoring circle are calculated, and the radius of the anchorage monitoring circle is calculated by substituting the hull length and wind speed of the monitored ship into this equation. Anchoring monitoring circle setting means for determining the center position of the traveling anchor monitoring circle from the distance and the wind direction, the current position of the monitored vessel obtained from the ship position observing means, and the traveling anchor monitoring circle setting means An anchor monitoring device, comprising: an alarm instruction output unit that calculates a distance difference from the center position of the anchor monitoring circle and outputs an alarm instruction when the value is equal to or larger than the radius of the anchor monitoring circle.
JP30661293A 1993-12-07 1993-12-07 Drag monitor Expired - Lifetime JP3208625B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30661293A JP3208625B2 (en) 1993-12-07 1993-12-07 Drag monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30661293A JP3208625B2 (en) 1993-12-07 1993-12-07 Drag monitor

Publications (2)

Publication Number Publication Date
JPH07159530A true JPH07159530A (en) 1995-06-23
JP3208625B2 JP3208625B2 (en) 2001-09-17

Family

ID=17959180

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30661293A Expired - Lifetime JP3208625B2 (en) 1993-12-07 1993-12-07 Drag monitor

Country Status (1)

Country Link
JP (1) JP3208625B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103810905A (en) * 2014-01-15 2014-05-21 浙江海洋学院 Ship dragging assessment and early warning method
WO2023225786A1 (en) * 2022-05-23 2023-11-30 广东逸动科技有限公司 Dragging anchor detection method and apparatus for ships, electronic device, and storage medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103810905A (en) * 2014-01-15 2014-05-21 浙江海洋学院 Ship dragging assessment and early warning method
WO2023225786A1 (en) * 2022-05-23 2023-11-30 广东逸动科技有限公司 Dragging anchor detection method and apparatus for ships, electronic device, and storage medium

Also Published As

Publication number Publication date
JP3208625B2 (en) 2001-09-17

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