JP3174859U - Flood detection sensor - Google Patents

Flood detection sensor Download PDF

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JP3174859U
JP3174859U JP2012000422U JP2012000422U JP3174859U JP 3174859 U JP3174859 U JP 3174859U JP 2012000422 U JP2012000422 U JP 2012000422U JP 2012000422 U JP2012000422 U JP 2012000422U JP 3174859 U JP3174859 U JP 3174859U
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sensor
cover
detection
submersion
detection sensor
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幸彦 伊藤
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幸彦 伊藤
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/30—Assessment of water resources

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Abstract


【課題】アンダーパスの冠水を検知する為の静電容量式冠水検出センサでは、大量の雨が降った場合に冠水検出センサの電極表面に雨水が流れ込み水位の誤検出が発生することがある。雨水のセンサ電極付近の流れを無くして誤検出を防止する冠水検出センサを提供する。
【解決手段】下向きに保持した冠水センサ１の外側に空気溜り部４を作る為に上部が閉じたカバーを設ける構造とし、またカバーの下端に溝又は穴を設ける構造とする。
【選択図】図１
In a capacitance-type submersion detection sensor for detecting underpass submergence, when a large amount of rain falls, rainwater may flow into the electrode surface of the submersion detection sensor and erroneous detection of the water level may occur. Provided is a submersion detection sensor that eliminates the flow in the vicinity of the sensor electrode of rainwater and prevents erroneous detection.
A structure is provided in which a cover with a closed upper part is provided outside the submersion sensor 1 held downward, and a groove or a hole is provided in the lower end of the cover.
[Selection] Figure 1

Description

屋外で直接に雨水が掛る場所に設置される冠水検出センサに関する。
The present invention relates to a submergence detection sensor installed in a place where rainwater is directly applied outdoors.

立体交差で掘り下げ式になっている下の道路(以降はアンダーパスとする)における、従来の冠水感知は、超音波送波と超音波受波器を有する超音波センサで道路上の冠水水位を非接触で検知する方法や、電極と電極間に微小な電流が流れたら水位を検知する方式、電極式の静電容量センサを使用する方式などが有る。
その中の、静電容量式冠水検出センサ内部構造の一例では、図２に示すようには円筒ケース１３の中に電極２があり、シールド２０を置くことにより、電極２下部に接する水と空気の比誘電率の差を使って静電容量の変化だけで水を検出している。 Conventional submergence detection on the lower road that is digging down at the three-dimensional intersection (hereinafter referred to as the underpass) is the ultrasonic sensor that has an ultrasonic transmission and an ultrasonic receiver to measure the level of submergence on the road. There are a non-contact detection method, a method of detecting a water level when a minute current flows between electrodes, a method of using an electrode-type capacitance sensor, and the like.
In an example of the internal structure of the electrostatic capacitance type submersion detection sensor, the electrode 2 is in the cylindrical case 13 as shown in FIG. The water is detected only by the change in capacitance using the difference in relative permittivity.

特開２０１１−１５３８４２号公報JP 2011-153842 A

このような構造のため、屋外等に設置した場合、図３に示すように冠水検出センサに大量の雨水が直接掛かり、雨水の流れ９がセンサ検出電極表面２に流れ込み水位が上昇した場合と同等になり、水位の誤検出が発生する。（図３参照）
本考案はこのような問題点を解決する為になされたものであり、雨水の電極付近への流れ込みを防止し、誤検出を防止することにある。 Due to such a structure, when installed outdoors or the like, a large amount of rainwater is directly applied to the flooded detection sensor as shown in FIG. 3, and the rainwater flow 9 flows into the sensor detection electrode surface 2 and the water level rises. And false detection of the water level occurs. (See Figure 3)
The present invention has been made to solve such problems, and it is intended to prevent the rainwater from flowing into the vicinity of the electrode and prevent erroneous detection.

冠水検出センサとして下向きに保持したセンサの外側に空気溜めを作る為に上部が閉じたカバーを設ける構造とする。       In order to create an air reservoir outside the sensor held downward as a submersion detection sensor, a cover with a closed top is provided.

また、上記の冠水検出センサにおいて、カバーの下端に溝又は穴を設ける構造とする。     In the above submergence detection sensor, a groove or a hole is provided at the lower end of the cover.

具体的には冠水センサ電極表面２に雨水の流れを流さない為、上部が閉じたカバー８を取り付ける。カバーは金属又はプラスチックであれば何でもよい。冠水検出センサは外径１０〜２０ｍｍ程度のものを使用することが出来る。カバーの外径は冠水検出センサの外径より大きい必要があり、２５〜５０ｍｍが好ましい。カバー８にはカバー端面からセンサ検出電極表面２より上側まで空気抜き用溝加工３を行う構造とする。空気抜き用溝加工３の幅寸法は異物が引っ掛かり憎い大きさであるのが好ましく、４〜６ｍｍが好ましい。カバーの溝加工の底面も丸みをつけ、空気抜き加工部に異物が引っ掛る事を防止している事が好ましい。カバー下部の垂直位置は冠水検出センサの垂直位置より０〜５０ｍｍであることが好ましく、より好ましくは１０〜２０ｍｍである。     Specifically, in order to prevent the rainwater flow from flowing on the surface 2 of the flooded sensor electrode, a cover 8 whose upper portion is closed is attached. The cover can be any metal or plastic. A submersion detection sensor having an outer diameter of about 10 to 20 mm can be used. The outer diameter of the cover needs to be larger than the outer diameter of the submersion detection sensor, and is preferably 25 to 50 mm. The cover 8 has a structure in which an air vent groove 3 is formed from the cover end surface to the upper side of the sensor detection electrode surface 2. The width dimension of the air grooving groove 3 is preferably a size that is apt to be caught by foreign matter and is preferably 4 to 6 mm. It is preferable that the bottom surface of the groove processing of the cover is also rounded to prevent foreign matter from being caught on the air vent portion. The vertical position of the lower part of the cover is preferably 0 to 50 mm, more preferably 10 to 20 mm from the vertical position of the submersion detection sensor.

この加工に依ってセンサ検出電極表面はカバー下端と空気抜き用溝の間にセット出来るので、上からの雨水はカバーの外側を流れ、また、横からの雨水もセンサには直接は掛らず、誤検出を防止出来る。     By this processing, the sensor detection electrode surface can be set between the cover lower end and the air vent groove, so rainwater from above flows outside the cover, and rainwater from the side does not directly touch the sensor, False detection can be prevented.

カバー下端に設けられた空気抜き溝３の構造は、センサ検出電極表面より少し上までの加工とする事でカバーの空気抜き用溝より上側に空気溜り４を残す構造とする。この空気溜りが水位上昇の際、カバー内に空気の閉じ込め現象を発生させ、空気抜き用溝以上に水と共にゴミや泥の進入を防止し、耐久性の向上と検出の確実性が向上し、屋外に設置されても確実に冠水状態を検知出来る。
アンダーパス用に限らず、地下空間の浸水検出や、他の用途に使用する冠水検出センサにも有効である。 The structure of the air vent groove 3 provided at the lower end of the cover is a structure in which the air reservoir 4 is left above the air vent groove of the cover by processing the surface slightly above the sensor detection electrode surface. When the air pool rises, the air traps in the cover, preventing dust and mud from entering with the water beyond the air vent, improving durability and improving detection reliability. Even if it is installed in the submersion, it is possible to reliably detect the flooding condition.
It is effective not only for underpass use, but also for inundation detection in underground spaces and submersion detection sensors used for other purposes.

冠水センサに大量の雨水が掛っても、雨水はカバーを伝わって、カバーの外側を流れる為、センサ検出電極表面に水は達しない、又横からの雨水が掛ってもセンサ検出電極表面はカバー端面より上にセットされているので、センサ検出電極表面２には達しない、センサ検出電極表面２に下側からの水位１１が接触した時だけ検出動作が正しく行われ、誤検出は起こらない。     Even if a large amount of rainwater falls on the flooded sensor, the rainwater travels through the cover and flows outside the cover, so the water does not reach the sensor detection electrode surface, and the sensor detection electrode surface covers the rainwater from the side. Since it is set above the end surface, the detection operation is correctly performed only when the sensor detection electrode surface 2 does not reach the sensor detection electrode surface 2 and the water level 11 from the lower side contacts the sensor detection electrode surface 2, and no erroneous detection occurs.

カバーの空気抜き用溝より上には、上昇した水が空気を閉じ込め、空気溜りが出来るので、ゴミや泥が内部には進入せず、カバー内部がきれいに保たれ、耐久性の向上と検出の確実性が向上し、屋外に設置されても確実に冠水状態を検知出来る。     Above the cover's air vent groove, the rising water traps air and collects air, so dust and mud do not enter the interior, keeping the inside of the cover clean, improving durability and ensuring detection Improves performance and reliably detects flooding even when installed outdoors.

冠水センサカバー取付け状態図Submersion sensor cover installation diagram 静電容量式冠水センサ内部構造図Capacitive submersion sensor internal structure diagram 冠水センサカバーなし状態図State figure without submersion sensor cover

屋外に設置される冠水センサ１には直接に雨水が掛る場合が有り、その水量や勢いによって、センサが検知してしまう場合が多い、この考案により大量の雨量からセンサ検出電極面２に直接雨水が掛る事で発生するご検出を防止し、空気抜き用溝によってセンサ検出電極面２をカバー下端とカバー上部の空気抜き用溝の間にセットすれば、センサ検出電極面の空気閉じ込めは発生せず誤検出は発生しない。またカバーに設けられた空気抜き用溝より上の、空気溜り部で上昇した水が、空気を閉じ込めて、空気抜き用溝より上へ、水と一緒に進入するゴミや泥の進入を防止出来るのでカバー内部がきれいに保たれ、耐久性の向上と検出の確実性が向上し、産業上の利用の可能性は極めて高い。     There are cases where rainwater is directly applied to the flood sensor 1 installed outdoors, and in many cases the sensor detects it depending on the amount and momentum of the water. If the sensor detection electrode surface 2 is set between the lower end of the cover and the air release groove at the top of the cover by the air vent groove, air trapping of the sensor detection electrode surface will not occur and an error will occur. Detection does not occur. In addition, water that has risen in the air reservoir above the air vent groove on the cover can trap the air and prevent dust and mud from entering with the water above the air vent groove. The interior is kept clean, the durability is improved and the reliability of detection is improved, and the possibility of industrial use is extremely high.

１ 冠水センサ
２ センサ検出電極面
３ センサ空気抜き用溝
４ 空気溜り部
５ センサ固定用金具
６ 電線
７ カバーテーパー部
８ センサカバー
９ 雨水の流れ
１０ 水面１
１１ 水面２
１２ カバー底面
１３ センサ固定用ネジ
２０ シールド電極
DESCRIPTION OF SYMBOLS 1 Submersion sensor 2 Sensor detection electrode surface 3 Sensor air vent groove 4 Air reservoir 5 Sensor fixing bracket 6 Electric wire 7 Cover taper portion 8 Sensor cover 9 Rain water flow 10 Water surface 1
11 Water surface 2
12 Cover bottom 13 Sensor fixing screw 20 Shield electrode

Claims (2)

冠水検出センサとして下向きに保持したセンサの外側に上部が密閉した下向きのカバーを設けたことを特徴とした冠水検出センサ       A submersion detection sensor characterized in that a downward cover with a sealed upper part is provided outside a sensor held downward as a submersion detection sensor. カバーの下端に溝又は穴を設ける事を特徴とする請求項１記載の冠水検出センサ       2. A submersion detection sensor according to claim 1, wherein a groove or a hole is provided at the lower end of the cover.
JP2012000422U 2012-01-30 2012-01-30 Flood detection sensor Expired - Lifetime JP3174859U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018087814A (en) * 2016-11-24 2018-06-07 日鐵住金建材株式会社 Flooding detection sensor mounting structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018087814A (en) * 2016-11-24 2018-06-07 日鐵住金建材株式会社 Flooding detection sensor mounting structure

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