A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
AUTOMATIC FAUCET DEVICE
To provide an automatic faucet device capable of detecting mirror-reflecting objects while suppressing false detection.SOLUTION: An automatic faucet device comprises a water discharge part, a water supply channel, an open/close valve, a transmitter that sends optical signals, a receiver that receives the reflected signals of the optical signals, and a control unit that opens/closes the open/close valve based on the amount of reflected light of the reflected signals received by the receiver. The transmitter has first and second light projection units, and a first polarizing unit that transmits light of first polarization projected from the first light projection unit and blocks light of a second polarization. The receiver has a second polarizing unit that transmits the light of second polarization among the light contained in the reflected signal and blocks the light of first polarization, and a light receiving unit that receives the light of second polarization transmitted through the second polarizing unit. The control unit opens the open/close valve when a first detection value corresponding to the amount of light received obtained by the light projection from the first light projection unit is a first threshold value or greater, and also opens the open/close valve when a second detection value corresponding to the amount of light received obtained by the light projection from the second light projection unit is a second threshold value or greater even if the first detection value is less than the first threshold value.SELECTED DRAWING: Figure 3
【課題】誤検出を抑制しつつ、鏡面反射する対象物を検出できる自動水栓装置を提供する。【解決手段】吐水部と、給水路と、開閉弁と、光信号を送信する送信部と、光信号の反射信号を受信する受信部と、受信部における反射信号の受光量に基づいて開閉弁を開閉する制御部と、を備え、送信部は、第１、第２投光部と、第１投光部から投光された光のうち第１偏光の光を透過させ第２偏光の光を遮断する第１偏光部と、を有し、受信部は、反射信号に含まれる光のうち第２偏光の光を透過させ第１偏光の光を遮断する第２偏光部と、第２偏光部を透過した第２偏光の光を受光する受光部と、を有し、制御部は、第１投光部からの投光により得られる受光量に対応する第１検出値が第１閾値以上のとき開閉弁を開とし、第１検出値が第１閾値未満であっても、第２投光部からの投光により得られる受光量に対応する第２検出値が第２閾値以上のとき開閉弁を開とする自動水栓装置。【選択図】図３
AUTOMATIC FAUCET DEVICE
To provide an automatic faucet device capable of detecting mirror-reflecting objects while suppressing false detection.SOLUTION: An automatic faucet device comprises a water discharge part, a water supply channel, an open/close valve, a transmitter that sends optical signals, a receiver that receives the reflected signals of the optical signals, and a control unit that opens/closes the open/close valve based on the amount of reflected light of the reflected signals received by the receiver. The transmitter has first and second light projection units, and a first polarizing unit that transmits light of first polarization projected from the first light projection unit and blocks light of a second polarization. The receiver has a second polarizing unit that transmits the light of second polarization among the light contained in the reflected signal and blocks the light of first polarization, and a light receiving unit that receives the light of second polarization transmitted through the second polarizing unit. The control unit opens the open/close valve when a first detection value corresponding to the amount of light received obtained by the light projection from the first light projection unit is a first threshold value or greater, and also opens the open/close valve when a second detection value corresponding to the amount of light received obtained by the light projection from the second light projection unit is a second threshold value or greater even if the first detection value is less than the first threshold value.SELECTED DRAWING: Figure 3
【課題】誤検出を抑制しつつ、鏡面反射する対象物を検出できる自動水栓装置を提供する。【解決手段】吐水部と、給水路と、開閉弁と、光信号を送信する送信部と、光信号の反射信号を受信する受信部と、受信部における反射信号の受光量に基づいて開閉弁を開閉する制御部と、を備え、送信部は、第１、第２投光部と、第１投光部から投光された光のうち第１偏光の光を透過させ第２偏光の光を遮断する第１偏光部と、を有し、受信部は、反射信号に含まれる光のうち第２偏光の光を透過させ第１偏光の光を遮断する第２偏光部と、第２偏光部を透過した第２偏光の光を受光する受光部と、を有し、制御部は、第１投光部からの投光により得られる受光量に対応する第１検出値が第１閾値以上のとき開閉弁を開とし、第１検出値が第１閾値未満であっても、第２投光部からの投光により得られる受光量に対応する第２検出値が第２閾値以上のとき開閉弁を開とする自動水栓装置。【選択図】図３
AUTOMATIC FAUCET DEVICE
自動水栓装置
TACHIKI SHOICHI (author) / KAREI MINORU (author) / WADA SHOTARO (author)
2022-03-24
Patent
Electronic Resource
Japanese
IPC:
E03C
DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER
,
Hausinstallationen für Frisch- oder Abwasser
AUTOMATIC FAUCET AND FAUCET FITTINGS USED FOR AUTOMATIC FAUCET
| European Patent Office | 2021