TWO-DISTANCE TOUCH FREE AUTOMATIC TYPE WATER SUPPLY DEVICE AND METHOD

摘要

A two-distance touch free automatic type water supply method includes: when a sensor senses an appearance of an external object at a first distance from the sensor, the sensing signal is an open signal, whereby water of the outlet is supplied; when the sensor senses a disappearance of the external object at the first distance from the sensor, the sensing signal is a closed signal, whereby water of the outlet is not supplied; when the sensor senses a first appearance and a first disappearance of the external object at a second distance from the sensor, the sensing signal is an open signal, whereby water of the outlet is supplied; and when the sensor senses a second appearance and a second disappearance of the external object at the second distance from the sensor, the sensing signal is a closed signal, whereby water of the outlet is not supplied.

主权项

1. A two-distance touch free automatic type water supply device, comprising:
a shell comprising an inlet, a flow channel and an outlet, wherein the outlet is communicated with the inlet through the flow channel; an electronic control unit comprising:
a sensor adjacent to the outlet for sensing an external object and then generating a sensing signal; anda control circuit electrically connected to the sensor and receiving the sensing signal for generating a control signal; and a driving unit, wherein an end of the driving unit is disposed in the shell, and the other end of the driving unit is physically connected to the flow channel for automatically controlling whether water of the outlet is supplied according to the control signal; wherein: when the sensor senses an appearance of an external object at a first distance from the sensor, the sensing signal is an open signal, whereby the water of the outlet is supplied; when the sensor senses a disappearance of the external object at the first distance from the sensor, the sensing signal is a closed signal, whereby the water of the outlet is not supplied; when the sensor senses a first appearance and a first disappearance of the external object at a second distance from the sensor, the sensing signal is an open signal, whereby the water of the outlet is supplied, wherein the first distance is different from the second distance; and when the sensor senses a second appearance and a second disappearance of the external object at the second distance from the sensor, the sensing signal is a closed signal, whereby the water of the outlet is not supplied.