| 摘要 |
PURPOSE: To maintain parameters, even in the case of service interruption by conducting the nonvolatile memory of the parameters in a memory regardless of the power-supply voltage. CONSTITUTION: A solenoid valve is installed into a fixture 1 and can be controlled by an electronic controller 2. A detector 4 is mounted in the region of a water outlet 11. When the presence of a user is confirmed, the detector 4 generates a signal, and transmits it to the controller 2. A water outflow program is operated through a micro-controller in the controller 2 at that time, and the solenoid valve transmits open pules after a predetermined period. Likewise, closed pulses are sent again after the predetermined open period. The power of the controller 2 is transmitted from a battery 5, integrated in the fixture 1 together with the detector 4 and the solenoid valve. The water fixture control system has a memory 3 formed as a nonvolatile memory maintaining parameters input through remote control. Consequently, the memory becomes unrelated to the power-supply voltage of control. Accordingly, even if battery is lacking, input parameters can be maintained in the memory 3.
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