JPH04289314A - Method and apparatus for controlling dam - Google Patents
Method and apparatus for controlling damInfo
- Publication number
- JPH04289314A JPH04289314A JP5496091A JP5496091A JPH04289314A JP H04289314 A JPH04289314 A JP H04289314A JP 5496091 A JP5496091 A JP 5496091A JP 5496091 A JP5496091 A JP 5496091A JP H04289314 A JPH04289314 A JP H04289314A
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- Japan
- Prior art keywords
- water level
- weir
- gate
- downstream side
- signal
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 155
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 33
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 abstract description 14
- 230000000630 rising effect Effects 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 description 9
- 238000012360 testing method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、ゲートを有する河口堰
や取水堰などの潮流の逆流状態を検出し、逆流による塩
分塑上を未然に防止する堰制御装置および方法に関する
。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a weir control device and method for detecting a reverse tidal flow state in an estuary weir, intake weir, etc. having a gate, and preventing salt build-up due to the reverse flow.
【０００２】0002
【従来の技術】取水堰や河口堰は河川の下流域や河口に
設置されるため、堰下流側は海に面している場合が多い
。この取水堰や河口堰では、潮位の干満現象によりその
堰下流水位も干満状態に追随して変化しているため、干
潮から満潮に変化していく時、上流側への塩水（海水）
の逆流現象が発生する。BACKGROUND OF THE INVENTION Intake weirs and estuary weirs are installed in the downstream areas of rivers or at the mouths of rivers, so the downstream side of the weirs often faces the sea. At this intake weir and estuary weir, the water level downstream of the weir changes according to the ebb and flow of the tide, so when the tide changes from low tide to high tide, salt water (seawater) flows upstream.
A backflow phenomenon occurs.
【０００３】このような逆流現象を防止するため、堰上
流側と堰下流側の水位を監視しながらゲートの開閉操作
を行い、逆流による塩分塑上を防止することが必要であ
る。すなわち、潮位が満潮から干潮へ低下していく過程
では、堰内水の排除及び上流側への洩水による塩水の除
去を目的として、堰上流水位を堰下流水位に追随させな
がらゲート操作を行っている。また、潮位が干潮から満
潮に進む過程においては、堰下流側の水位が上昇し、そ
れにともなって堰上流側の水位も上昇していき、潮流が
下流側から上流側へと逆流してしまう恐れがあるため、
ゲートを全閉操作して逆流の防止を図っている。なお、
この種の技術に関連する公知例としては、例えば特開昭
５５−５２４１８号公報がある。In order to prevent such a backflow phenomenon, it is necessary to open and close the gate while monitoring the water levels on the upstream and downstream sides of the weir to prevent salt plastic build-up due to backflow. In other words, as the tide level decreases from high tide to low tide, the gate is operated while the water level upstream of the weir follows the water level downstream of the weir, with the aim of removing water within the weir and removing salt water due to leakage to the upstream side. ing. In addition, as the tide level progresses from low tide to high tide, the water level on the downstream side of the weir rises, and the water level on the upstream side of the weir also rises, causing the risk that the current will flow backwards from the downstream side to the upstream side. Because there is
The gate is fully closed to prevent backflow. In addition,
As a known example related to this type of technology, there is, for example, Japanese Patent Laid-Open No. 55-52418.
【０００４】0004
【発明が解決しようとする課題】しかしながら、上記従
来技術では、逆流状態を判断するのに上流側水位と下流
側水位の差だけから行っているため、逆流検出が遅れて
、堰上流側に多量の塩水が逆流してしまう欠点がある。
すなわち、逆流状態を検出する条件として、従来技術で
はゲートが開いている状態で上流側水位より下流側水位
が高くなった時のみとしており、この検出方法では逆流
検出のタイミングが遅れて、下流側水位が上昇している
間に、水の下層付近では既に多量の塩水が逆流してしま
う結果となる。[Problems to be Solved by the Invention] However, in the above-mentioned conventional technology, the backflow state is determined based only on the difference between the upstream water level and the downstream water level, so the detection of backflow is delayed, and a large amount of water flows to the upstream side of the weir. The disadvantage is that the salt water flows backwards. In other words, in the conventional technology, the condition for detecting a backflow state is only when the downstream water level becomes higher than the upstream water level with the gate open. While the water level is rising, the result is that a large amount of salt water is already flowing back near the lower layer of the water.
【０００５】本発明の目的は、堰下流側水位が上昇して
いる場合に、その水位上昇状態を監視して、逆流が実際
に発生する以前に逆流発生の可能性を未然に検出し、逆
流発生を確実に防止する堰制御装置および方法を提供す
ることである。An object of the present invention is to monitor the rising water level when the water level downstream of a weir is rising, detect the possibility of backflow occurring before it actually occurs, and prevent backflow. An object of the present invention is to provide a weir control device and method that reliably prevent the occurrence of such problems.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、開閉自在なゲートを少なくとも１つ有し
、該ゲートを開閉させることにより、河川の流れを制御
する堰制御装置において、前記ゲートの開閉状態を検出
し、１つでも開いたゲートがあれば信号を出力するゲー
ト開閉検出手段と、堰下流側の水位の変化を連続して監
視し、規定時間内の水位上昇変化量が所定値以上となっ
たときに信号を出力する第１の水位比較手段と、堰上流
側の水位と堰下流側の水位との偏差を求め、その偏差が
予め設定された値よりも小さくなったときに信号を出力
する第２の水位比較手段と、前記ゲート開閉検出手段、
第１の水位比較手段および第２の水位比較手段からの信
号が同時に入力されたとき、潮流逆流の警報を出力する
警報出力手段と、を備えたものである。[Means for Solving the Problems] In order to achieve the above object, the present invention provides a weir control device that has at least one gate that can be opened and closed and controls the flow of a river by opening and closing the gate. , a gate opening/closing detection means that detects the opening/closing state of the gates and outputs a signal if even one gate is open; and a gate opening/closing detection means that continuously monitors changes in the water level on the downstream side of the weir and changes in water level rise within a specified time. a first water level comparison means that outputs a signal when the amount exceeds a predetermined value; and a first water level comparison means that calculates a deviation between the water level on the upstream side of the weir and the water level on the downstream side of the weir, and the deviation is smaller than a preset value. a second water level comparison means that outputs a signal when the water level is reached; and the gate opening/closing detection means;
The apparatus further includes alarm output means for outputting a warning of reverse tidal current when signals from the first water level comparison means and the second water level comparison means are input simultaneously.
【０００７】また、本発明は、開閉自在なゲートを少な
くとも１つ有し、該ゲートを開閉させることにより、河
川の流れを制御する堰制御装置において、前記ゲートの
開閉状態を検出し、１つでも開いたゲートがあれば信号
を出力するゲート開閉検出手段と、堰下流側の水位の変
化を連続して監視し、規定時間内の水位上昇変化量が所
定値以上となったときに信号を出力する第１の水位比較
手段と、堰上流側の水位と堰下流側の水位との偏差を求
め、その偏差が予め設定された値よりも小さくなったと
きに信号を出力する第２の水位比較手段と、前記ゲート
開閉検出手段、第１の水位比較手段および第２の水位比
較手段からの信号が同時に入力されたとき、前記ゲート
の全てを閉じるゲート制御手段と、を備えたものである
。[0007] The present invention also provides a weir control device that has at least one gate that can be opened and closed and controls the flow of a river by opening and closing the gate. However, there is a gate opening/closing detection means that outputs a signal if there is an open gate, and a gate opening/closing detection means that continuously monitors changes in the water level on the downstream side of the weir and outputs a signal when the amount of water level rise change within a specified time exceeds a predetermined value. A first water level comparison means for outputting, and a second water level for calculating the deviation between the water level on the upstream side of the weir and the water level on the downstream side of the weir and outputting a signal when the deviation becomes smaller than a preset value. Comparing means, and gate control means for closing all of the gates when signals from the gate opening/closing detecting means, the first water level comparing means, and the second water level comparing means are input simultaneously. .
【０００８】さらに、本発明は、開閉自在なゲートを少
なくとも１つ有し、該ゲートを開閉させることにより、
河川の流れを制御する堰制御装置において、前記ゲート
の開閉状態を検出し、１つでも開いたゲートがあれば信
号を出力するゲート開閉検出手段と、堰下流側の水位の
変化を連続して監視し、規定時間内の水位上昇変化量が
所定値以上となったときに信号を出力する第１の水位比
較手段と、堰上流側の水位と堰下流側の水位との偏差を
求め、その偏差が予め設定された値よりも小さくなった
ときに信号を出力する第２の水位比較手段と、前記ゲー
ト開閉検出手段、第１の水位比較手段および第２の水位
比較手段からの信号が同時に入力されたとき、潮流逆流
の警報信号を出力する警報出力手段と、前記警報信号に
基づいて前記ゲートの全てを閉じるゲート制御手段と、
を備えたものである。Furthermore, the present invention has at least one gate that can be opened and closed, and by opening and closing the gate,
A weir control device for controlling the flow of a river includes a gate opening/closing detection means that detects the opening/closing state of the gates and outputs a signal if even one gate is open, and a gate opening/closing detection means that continuously detects changes in the water level on the downstream side of the weir. A first water level comparison means that monitors and outputs a signal when the amount of change in water level rise within a specified time exceeds a predetermined value; A second water level comparison means outputs a signal when the deviation becomes smaller than a preset value, and signals from the gate opening/closing detection means, the first water level comparison means, and the second water level comparison means are simultaneously output. Alarm output means for outputting a reverse tidal flow alarm signal when input, and gate control means for closing all of the gates based on the alarm signal;
It is equipped with the following.
【０００９】また、本発明は、堰上流側の水位と堰下流
側の水位との水位差を監視しながら、ゲートを開閉操作
して潮流の逆流を防止する堰制御方法において、前記ゲ
ートが少なくとも１つでも開いた状態で、堰下流側の規
定時間内水位上昇変化量が所定値以上となり、かつ堰上
流側の水位と堰下流側の水位との偏差が予め設定された
値よりも小さくなったときに、潮流が逆流していると判
定することである。[0009] The present invention also provides a weir control method in which a gate is opened/closed to prevent reverse tidal current while monitoring the water level difference between the water level on the upstream side of the weir and the water level on the downstream side of the weir, wherein the gate has at least If even one of the weirs is open, the amount of change in the rise in the water level on the downstream side of the weir within a specified time exceeds a predetermined value, and the deviation between the water level on the upstream side of the weir and the water level on the downstream side of the weir is smaller than a preset value. This is to determine that the current is flowing in the opposite direction.
【００１０】またさらに、本発明は、堰上流側の水位と
堰下流側の水位との水位差を監視しながら、ゲートを開
閉操作して潮流の逆流を防止する堰制御方法において、
前記ゲートが少なくとも１つでも開いた状態で、堰下流
側の規定時間内水位上昇変化量が所定値以上となり、か
つ堰上流側の水位と堰下流側の水位との偏差が予め設定
された値よりも小さくなったときに、前記ゲートの全て
を閉じることである。Furthermore, the present invention provides a weir control method in which a gate is opened and closed to prevent reverse tidal flow while monitoring the water level difference between the water level on the upstream side of the weir and the water level on the downstream side of the weir.
When at least one of the gates is open, the amount of increase in the water level on the downstream side of the weir within a specified time exceeds a predetermined value, and the deviation between the water level on the upstream side of the weir and the water level on the downstream side of the weir is a preset value. , all of the gates are closed.
【００１１】[0011]
【作用】潮位が干潮から満潮に変化したとき、ゲートの
１つでも開いていれば逆流が発生し易い状態であり、こ
のゲートの開状態はゲート開閉検出手段によって検知さ
れる。そして、潮位が干潮から満潮に変化して堰下流側
水位が堰上流側水位よりも大きくなったときは逆流が発
生している。しかし、逆流が実際に発生してからでは塩
水塑上が起こり手遅れなので、本発明のように、堰下流
側の水位の規定時間内の上昇量（変化率）が所定値より
も大きくなったか否かを第１の水位比較手段で検知する
とともに、堰上流側と堰下流側の水位差が予め設定され
た値よりも小さくなったか否かを第２の水位比較手段で
検知する。このようにすると、逆流が発生し始める前に
、予め逆流発生の可能性を検知することができる。さら
に、逆流発生を予め検知して、ゲートを全閉にする最適
なタイミングを検出することが可能となり、逆流発生を
完全に防止することができる。[Operation] When the tide level changes from low tide to high tide, if even one of the gates is open, backflow is likely to occur, and the open state of this gate is detected by the gate opening/closing detection means. When the tide level changes from low tide to high tide and the water level on the downstream side of the weir becomes higher than the water level on the upstream side of the weir, a backflow occurs. However, once backflow actually occurs, it is too late for salt water plasticity to occur, so as in the present invention, it is possible to determine whether the amount of rise (rate of change) of the water level on the downstream side of the weir within a specified time has become larger than a predetermined value. The first water level comparing means detects whether the water level difference between the upstream side of the weir and the downstream side of the weir has become smaller than a preset value. In this way, the possibility of occurrence of backflow can be detected in advance before backflow begins to occur. Furthermore, by detecting the occurrence of backflow in advance, it is possible to detect the optimal timing for fully closing the gate, thereby making it possible to completely prevent the occurrence of backflow.
【００１２】0012
【実施例】以下に本発明に一実施例を図面に従って説明
する。図１は本発明の堰制御装置の概略構成を示すブロ
ック図である。１および２はそれぞれ堰の上流側水位お
よび下流側水位を計測する水位計、３−１は堰上流水位
ＨＵと堰下流水位ＨＬの水位差を演算し、パラメータ設
定部５に予め設定された検定水位差ＨＭと比較して、（
ＨＵ−ＨＬ）＜ＨＭの場合に外部に信号を出力する水位
比較機構部Ａ，４は堰下流水位ＨＬの変化を検出し、変
化がある場合に水位データバッファメモリ１０に記憶し
ているデータＨ０，Ｈ１，…，Ｈｎを１個づつ押し出し
方法でセットし、最新の堰下流水位ＨＬを先頭ケースに
セットする水位変化検出部、３−２は水位変化検出部４
に絡納されている最新の水位変化した水位データＨ０と
最古の水位データＨｎの水位差を演算し、パラメータ設
定部５に予め設定された許容変化量ＨＮと比較して、（
Ｈ０−Ｈｎ）＞ＨＮの場合に外部にその信号を出力する
水位比較機構部Ｂである。前述したパラメータ設定部５
は、堰上流水位ＨＵと堰下流水位ＨＬとの水位差を検定
するための検定水位差ＨＭと、堰下流水位がｎ回変化し
た時の変化量（Ｈ０−Ｈｎ）を検定するための許容変化
量ＨＮとを設定する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a schematic configuration of a weir control device according to the present invention. 1 and 2 are water level meters that measure the upstream water level and downstream water level of the weir, respectively; 3-1 is a water level meter that calculates the water level difference between the weir upstream water level HU and the weir downstream water level HL; Compared to the water level difference HM, (
The water level comparison mechanism unit A, 4 outputs a signal to the outside when HU−HL)<HM, detects a change in the water level HL downstream of the weir, and if there is a change, the data H0 stored in the water level data buffer memory 10 is output. , H1, .
The water level difference between the latest water level data H0 and the oldest water level data Hn included in the data is calculated, and compared with the allowable change amount HN preset in the parameter setting section 5, (
This is a water level comparison mechanism section B that outputs a signal to the outside when H0-Hn)>HN. The aforementioned parameter setting section 5
are the test water level difference HM for testing the water level difference between the weir upstream water level HU and the weir downstream water level HL, and the allowable change for testing the amount of change (H0-Hn) when the weir downstream water level changes n times. Set the amount HN.
【００１３】６はＡＮＤ回路、７はＯＲ回路、８−１，
…，８−ｎはゲート９−１，…，９−ｎを駆動し、開閉
状態の信号を出力するゲート駆動制御機構部である。ま
た、１１は全てのゲート９−１，…，９−ｎが全閉でな
い、すなわち半開状態のＯＲ条件と、水位比較機構部３
−１，３−２によりそれぞれ検定した結果と、の全ての
ＡＮＤ条件成立にて警報出力する警報表示部である。6 is an AND circuit, 7 is an OR circuit, 8-1,
. . , 8-n are gate drive control mechanisms that drive the gates 9-1, . . . , 9-n and output signals indicating open/close states. In addition, 11 is an OR condition in which all the gates 9-1,..., 9-n are not fully closed, that is, in a half-open state, and the water level comparison mechanism section 3
This is an alarm display unit that outputs an alarm when all the AND conditions are satisfied with the results of testing by -1 and 3-2.
【００１４】水位比較機構部Ａ３−１は、水位計１，２
より入力した堰上流水位ＨＵと堰下流水位ＨＬを基にし
て水位差（ＨＵ−ＨＬ）を算出するとともに、パラメー
タ設定部５に予め設定された検定水位差ＨＭとの比較を
行い、（ＨＵ−ＨＬ）＜ＨＭの条件を満足する否かを検
定する。ここで、満足したときの条件をＡとする。The water level comparison mechanism section A3-1 includes water level gauges 1 and 2.
The water level difference (HU-HL) is calculated based on the input weir upstream water level HU and the weir downstream water level HL, and is compared with the verification water level difference HM preset in the parameter setting section 5. Test whether the condition of HL)<HM is satisfied. Here, let A be the condition that is satisfied.
【００１５】また、水位比較機構部Ｂ３−２は、水位変
化毎に水位データバッファメモリ１０に記憶された最新
水位Ｈ０とｎ回変化前の水位Ｈｎとの水位差（Ｈ０−Ｈ
ｎ）を算出し、その算出結果とパラメータ設定部５に予
め設定された許容変化量ＨＮとの比較を行い、（Ｈ０−
Ｈｎ）＜ＨＮの条件を満足するか否かを検定する。ここ
で、満足したときの条件をＢとする。Further, the water level comparison mechanism section B3-2 calculates the water level difference (H0-H
n) is calculated, and the calculation result is compared with the allowable variation HN preset in the parameter setting section 5, and (H0-
Test whether the condition of Hn)<HN is satisfied. Here, let B be the condition that is satisfied.
【００１６】一方、ゲート９−１，…，９−ｎのどれか
が全閉状態でないときに、ゲート駆動制御機構部８−１
，…，８−ｎからの信号がＯＲ回路６に入力され、ＯＲ
回路６ではＯＲ条件に従って信号を出力する。ここで、
そのＯＲ条件をＣとする。On the other hand, when any of the gates 9-1, . . . , 9-n is not fully closed, the gate drive control mechanism section 8-1
, ..., 8-n are input to the OR circuit 6, and the OR circuit 6 receives the signals from the OR circuit 6.
The circuit 6 outputs a signal according to the OR condition. here,
Let C be the OR condition.
【００１７】そして、ＡＮＤ回路７では、ＡＮＤ条件に
従って、すなわち上記条件Ａ，Ｂ，Ｃのすべての条件が
確立したとき逆流が発生したと判断して、警報表示部１
１を動作させ操作員に逆流発生の警報を表示する。Then, the AND circuit 7 determines that a backflow has occurred according to the AND condition, that is, when all of the above conditions A, B, and C are established, and displays the alarm display section 1.
1 to display a backflow warning to the operator.
【００１８】次に、図２を用いて、本発明の原理を従来
技術と比較しながら説明する。図に示すように、堰下流
側水位ＨＬが堰上流側水位ＨＵよりも高いか又はその水
位差（ＨＬ−ＨＵ）が小さい場合、全てのゲートを全閉
操作して逆流を防止しているが、潮位が満潮から干潮へ
下降していく場合は、堰上流水位を堰下流水位に追随さ
せながらゲート操作を行い、ゲート付近に堆積した土砂
や塩水を放流時の水の力で排出している。潮位が下降方
向へ動いている場合は堰下流側水位も下降方向であるた
め逆流は発生しないが、潮位が干潮から満潮となり堰下
流水位が上昇している場合は逆流が発生する。そこで、
本発明では、干潮から満潮へ変化している状態、すなわ
ち、堰下流側水位の上昇方向の変化量と堰上流側と堰下
流側との水位差を監視して、ゲートを全閉にする最適な
タイミングを検出することにより、逆流発生を未然に防
止することが可能となる。Next, the principle of the present invention will be explained using FIG. 2 while comparing it with the prior art. As shown in the figure, when the water level HL on the downstream side of the weir is higher than the water level HU on the upstream side of the weir, or the water level difference (HL - HU) is small, all gates are fully closed to prevent backflow. When the tide level falls from high tide to low tide, the gate is operated while the water level upstream of the weir follows the water level downstream of the weir, and the sediment and salt water that has accumulated near the gate is discharged by the force of the water released. . If the tide level is moving downward, the water level downstream of the weir is also falling, so no backflow will occur, but if the tide level changes from low tide to high tide and the water level downstream of the weir is rising, a backflow will occur. Therefore,
In the present invention, the state of change from low tide to high tide, that is, the amount of change in the rising direction of the water level on the downstream side of the weir and the difference in water level between the upstream side of the weir and the downstream side of the weir, is monitored to determine the optimal way to fully close the gate. By detecting the appropriate timing, it is possible to prevent the occurrence of backflow.
【００１９】図３は本発明の他の実施例を示している。
本実施例ではＡＮＤ回路７にゲート制御装置１２が接続
され、このゲート制御装置１２でゲート９−１，…，９
−ｎの開閉制御が行われるようになっている。なお、Ａ
ＮＤ回路７に警報表示部１１とゲート制御装置１２と同
時に接続するようにしてもよい。FIG. 3 shows another embodiment of the invention. In this embodiment, a gate control device 12 is connected to the AND circuit 7, and this gate control device 12 controls the gates 9-1, . . .
-n opening/closing control is performed. In addition, A
The alarm display section 11 and the gate control device 12 may be connected to the ND circuit 7 at the same time.
【００２０】本実施例によれば、ゲート９−１，…，９
−ｎの開閉制御を自動的に行うことができる。According to this embodiment, the gates 9-1, . . . , 9
-n opening/closing control can be performed automatically.
【００２１】[0021]
【発明の効果】以上説明したように、本発明によれば、
逆流の発生を未然にかつ確実に検出することができるの
で、逆流による塩分塑上を完全に防止することができる
。また、操作員は潮位の干満状態を常時監しなくとも逆
流発生を未然に検出でき、全体的なゲート動作や水条件
に着目していればよく、堰管理の合理化及び安全性の面
で効果がある。[Effects of the Invention] As explained above, according to the present invention,
Since the occurrence of backflow can be detected in advance and reliably, salt plastic build-up due to backflow can be completely prevented. In addition, operators can detect the occurrence of backflow without constantly monitoring the tide level, and can simply focus on the overall gate operation and water conditions, which is effective in streamlining weir management and ensuring safety. There is.
【図１】本発明の堰制御装置の概略構成を示すブロック
図である。FIG. 1 is a block diagram showing a schematic configuration of a weir control device of the present invention.
【図２】本発明の原理を説明する図である。FIG. 2 is a diagram explaining the principle of the present invention.
【図３】本発明の他の実施例を示す堰制御装置のブロッ
ク図である。FIG. 3 is a block diagram of a weir control device showing another embodiment of the present invention.
１ 上流水位計
２ 下流水位計
３−１ 水位比較機構部Ａ
３−２ 水位比較機構部Ｂ
４ 水位変化検出部
５ パラメータ設定部
６ ＯＲ回路
７ ＡＮＤ回路
８−１，…，８−ｎ ゲート駆動制御機構部９−１，
…，９−ｎ ゲート
１０ 水位データバッファメモリ
１１ 警報表示部
１２ ゲート制御装置1 Upstream water level gauge 2 Downstream water level gauge 3-1 Water level comparison mechanism section A 3-2 Water level comparison mechanism section B 4 Water level change detection section 5 Parameter setting section 6 OR circuit 7 AND circuit 8-1,...,8-n Gate drive control mechanism section 9-1,
..., 9-n Gate 10 Water level data buffer memory 11 Alarm display section 12 Gate control device
Claims (6)
し、該ゲートを開閉させることにより、河川の流れを制
御する堰制御装置において、前記ゲートの開閉状態を検
出し、１つでも開いたゲートがあれば信号を出力するゲ
ート開閉検出手段と、堰下流側の水位の変化を連続して
監視し、規定時間内の水位上昇変化量が所定値以上とな
ったときに信号を出力する第１の水位比較手段と、堰上
流側の水位と堰下流側の水位との偏差を求め、その偏差
が予め設定された値よりも小さくなったときに信号を出
力する第２の水位比較手段と、前記ゲート開閉検出手段
、第１の水位比較手段および第２の水位比較手段からの
信号が同時に入力されたとき、潮流逆流の警報を出力す
る警報出力手段と、を備えたことを特徴とする堰制御装
置。1. A weir control device that has at least one gate that can be opened and closed, and that controls the flow of a river by opening and closing the gate, wherein the open/close state of the gate is detected, and if at least one gate is opened, a gate opening/closing detection means that outputs a signal if there is a change in water level on the downstream side of the weir; and a gate opening/closing detection means that continuously monitors changes in the water level on the downstream side of the weir and outputs a signal when the amount of change in water level rise within a specified time exceeds a predetermined value. a second water level comparison means that calculates the deviation between the water level on the upstream side of the weir and the water level on the downstream side of the weir and outputs a signal when the deviation becomes smaller than a preset value; A weir comprising: alarm output means for outputting a warning of reverse tidal flow when signals from the gate opening/closing detection means, the first water level comparison means, and the second water level comparison means are input simultaneously. Control device.
し、該ゲートを開閉させることにより、河川の流れを制
御する堰制御装置において、前記ゲートの開閉状態を検
出し、１つでも開いたゲートがあれば信号を出力するゲ
ート開閉検出手段と、堰下流側の水位の変化を連続して
監視し、規定時間内の水位上昇変化量が所定値以上とな
ったときに信号を出力する第１の水位比較手段と、堰上
流側の水位と堰下流側の水位との偏差を求め、その偏差
が予め設定された値よりも小さくなったときに信号を出
力する第２の水位比較手段と、前記ゲート開閉検出手段
、第１の水位比較手段および第２の水位比較手段からの
信号が同時に入力されたとき、前記ゲートの全てを閉じ
るゲート制御手段と、を備えたことを特徴とする堰制御
装置。2. A weir control device that has at least one gate that can be opened and closed, and that controls the flow of a river by opening and closing the gate, wherein the open/close state of the gate is detected, and if at least one gate is open, a gate opening/closing detection means that outputs a signal if there is a change in water level on the downstream side of the weir; and a gate opening/closing detection means that continuously monitors changes in the water level on the downstream side of the weir and outputs a signal when the amount of change in water level rise within a specified time exceeds a predetermined value. a second water level comparison means that calculates the deviation between the water level on the upstream side of the weir and the water level on the downstream side of the weir and outputs a signal when the deviation becomes smaller than a preset value; Weir control characterized by comprising: gate control means that closes all of the gates when signals from the gate opening/closing detection means, the first water level comparison means, and the second water level comparison means are input simultaneously. Device.
し、該ゲートを開閉させることにより、河川の流れを制
御する堰制御装置において、前記ゲートの開閉状態を検
出し、１つでも開いたゲートがあれば信号を出力するゲ
ート開閉検出手段と、堰下流側の水位の変化を連続して
監視し、規定時間内の水位上昇変化量が所定値以上とな
ったときに信号を出力する第１の水位比較手段と、堰上
流側の水位と堰下流側の水位との偏差を求め、その偏差
が予め設定された値よりも小さくなったときに信号を出
力する第２の水位比較手段と、前記ゲート開閉検出手段
、第１の水位比較手段および第２の水位比較手段からの
信号が同時に入力されたとき、潮流逆流の警報信号を出
力する警報出力手段と、前記警報信号に基づいて前記ゲ
ートの全てを閉じるゲート制御手段と、を備えたことを
特徴とする堰制御装置。3. A weir control device that has at least one gate that can be opened and closed, and that controls the flow of a river by opening and closing the gate, the weir control device detecting the open/closed state of the gate and detecting whether at least one gate is open. a gate opening/closing detection means that outputs a signal if there is a change in water level on the downstream side of the weir; and a gate opening/closing detection means that continuously monitors changes in the water level on the downstream side of the weir and outputs a signal when the amount of change in water level rise within a specified time exceeds a predetermined value. a second water level comparison means that calculates the deviation between the water level on the upstream side of the weir and the water level on the downstream side of the weir and outputs a signal when the deviation becomes smaller than a preset value; an alarm output means for outputting an alarm signal of reverse tidal flow when signals from the gate opening/closing detection means, the first water level comparison means and the second water level comparison means are inputted simultaneously; A weir control device characterized by comprising: gate control means for closing all of the gates.
において、前記第１の水位比較手段は、現在から一定時
間遡った時点までの最新の水位データを保持しているこ
とを特徴とする堰制御装置。4. The weir control device according to claim 1, 2 or 3, wherein the first water level comparison means holds the latest water level data up to a point a certain amount of time back from the present. Weir control device.
水位差を監視しながら、ゲートを開閉操作して潮流の逆
流を防止する堰制御方法において、前記ゲートが少なく
とも１つでも開いた状態で、堰下流側の規定時間内水位
上昇変化量が所定値以上となり、かつ堰上流側の水位と
堰下流側の水位との偏差が予め設定された値よりも小さ
くなったときに、潮流が逆流していると判定することを
特徴とする堰制御方法。5. A weir control method that prevents reverse flow of current by opening and closing gates while monitoring the water level difference between the water level on the upstream side of the weir and the water level on the downstream side of the weir, wherein at least one of the gates is opened. In this state, when the amount of increase in the water level on the downstream side of the weir within the specified time exceeds a predetermined value, and the deviation between the water level on the upstream side of the weir and the water level on the downstream side of the weir becomes smaller than a preset value, A weir control method characterized by determining that the current is flowing in reverse.
水位差を監視しながら、ゲートを開閉操作して潮流の逆
流を防止する堰制御方法において、前記ゲートが少なく
とも１つでも開いた状態で、堰下流側の規定時間内水位
上昇変化量が所定値以上となり、かつ堰上流側の水位と
堰下流側の水位との偏差が予め設定された値よりも小さ
くなったときに、前記ゲートの全てを閉じることを特徴
とする堰制御方法。6. A weir control method that prevents reverse tidal flow by opening and closing gates while monitoring the water level difference between the water level on the upstream side of the weir and the water level on the downstream side of the weir, wherein at least one of the gates is opened. In this state, when the amount of increase in the water level on the downstream side of the weir within the specified time exceeds a predetermined value, and the deviation between the water level on the upstream side of the weir and the water level on the downstream side of the weir becomes smaller than a preset value, A weir control method characterized by closing all of the gates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5496091A JPH04289314A (en) | 1991-03-19 | 1991-03-19 | Method and apparatus for controlling dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5496091A JPH04289314A (en) | 1991-03-19 | 1991-03-19 | Method and apparatus for controlling dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04289314A true JPH04289314A (en) | 1992-10-14 |
Family
ID=12985239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5496091A Pending JPH04289314A (en) | 1991-03-19 | 1991-03-19 | Method and apparatus for controlling dam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04289314A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015168917A (en) * | 2014-03-04 | 2015-09-28 | 宇部興産機械株式会社 | Operation method of dust collector |
-
1991
- 1991-03-19 JP JP5496091A patent/JPH04289314A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015168917A (en) * | 2014-03-04 | 2015-09-28 | 宇部興産機械株式会社 | Operation method of dust collector |
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