JP2001099742A5

JP2001099742A5 -

Info

Publication number: JP2001099742A5
Application number: JP1999276793A
Authority: JP
Filing date: 1999-09-29
Publication date: 2006-08-03

Description

【特許請求の範囲】
【請求項１】
敷設された遮水膜の上側に平行に所定の間隔で並べられた複数の上側線状電極と、前記遮水膜の下側に平行に前記上側線状電極と交差するように所定の間隔で並べられた複数の第１下側線状電極と、前記遮水膜の下側に平行に前記第１下側線状電極と交差するように所定の間隔で並べられた第２下側線状電極と、それら第１下側線状電極と第２下側線状電極との各交差部分にそれぞれ設けられ、各交差部分における電気的短絡を防止するための絶縁体と、交流電源と、前記複数の上側線状電極の少なくとも１本を選択すると共に、前記第１下側線状電極及び第２下側線状電極のうちの少なくとも１本を選択し、選択した線状電極のうち上側線状電極を交流電源の一方に接続し、他の線状電極は全て交流電源の他方に接続するための選択接続手段と、交流電源の一方に接続された上側線状電極と、反対側において選択された線状電極との間に流れる電流を検出するための電流検出回路と、前記電流検出回路の出力を受けて検波を行う検波手段とを含む、漏水検出システム。
【請求項２】
請求項１記載の漏水検出システムにおいて、前記上側線状電極は、互いに平行に延びる第２下側線状電極相互の間にそれぞれ位置しかつ第２下側線状電極と平行に配置されていることを特徴とする漏水検出システム。
【請求項３】
請求項１又は２記載の漏水検出システムにおいて、前記上側線状電極相互の間隔が、前記第２下側線状電極相互の間隔よりも広いことを特徴とする漏水検出システム。
【請求項４】
請求項１記載の漏水検出システムにおいて、前記選択接続手段により、複数の上側線状電極の１本を選択すると共に、前記第１下側線状電極及び第２下側線状電極をそれぞれ１本選択し、それら選択した上側線状電極と第１下側線状電極及び第２下側線状電極との間に流れる電流を前記電流検出回路で検出することにより漏水位置を検出することを特徴とする、漏水検出方法。
【請求項５】
請求項１記載の漏水検出システムにおいて、前記選択接続手段により、複数の上側線状電極の全てを選択すると共に、前記第１下側線状電極及び第２下側線状電極の全てを選択し、それら選択した全ての上側線状電極と全ての第１下側線状電極及び第２下側線状電極との間に流れる電流を前記電流検出回路で検出することにより漏水の有無を検出することを特徴とする、漏水検出方法。 [Claims]
[Claim 1]
A plurality of upper linear electrodes arranged parallel to the upper side of the laid impermeable film at predetermined intervals and at predetermined intervals so as to intersect the upper linear electrodes parallel to the lower side of the impermeable film. A plurality of arranged first lower linear electrodes and a second lower linear electrode arranged at predetermined intervals so as to intersect the first lower linear electrode parallel to the lower side of the impermeable film. An insulator provided at each intersection of the first lower linear electrode and the second lower linear electrode to prevent an electrical short circuit at each intersection, an AC power supply, and the plurality of upper linear electrodes are provided. At least one of the electrodes is selected, and at least one of the first lower linear electrode and the second lower linear electrode is selected, and the upper linear electrode of the selected linear electrodes is one of the AC power supplies. A selective connection means for connecting to and connecting all the other linear electrodes to the other of the AC power supply, an upper linear electrode connected to one of the AC power supplies, and a linear electrode selected on the opposite side. A water leakage detection system including a current detection circuit for detecting a current flowing between them and a detection means for detecting the output of the current detection circuit.
2.
In the water leakage detection system according to claim 1, the upper linear electrodes are located between the second lower linear electrodes extending in parallel with each other and arranged in parallel with the second lower linear electrodes. Featuring leak detection system.
3.
According to claim 1 or 2 water leakage detection system, wherein the distance between the upper linear electrodes mutually, water leakage detection system that is characterized wider than the second lower side wire-shaped electrodes mutual spacing.
4.
In the water leakage detection system according to claim 1, one of the plurality of upper linear electrodes is selected by the selective connection means, and one each of the first lower linear electrode and the second lower linear electrode is selected. The leak position is detected by detecting the current flowing between the selected upper linear electrode, the first lower linear electrode, and the second lower linear electrode with the current detection circuit. Detection method.
5.
In the water leakage detection system according to claim 1, all of the plurality of upper linear electrodes are selected by the selective connection means, and all of the first lower linear electrode and the second lower linear electrode are selected, and they are selected. The feature is that the presence or absence of water leakage is detected by detecting the current flowing between all the selected upper linear electrodes and all the first lower linear electrodes and the second lower linear electrodes with the current detection circuit. Leakage detection method.