WATER DISCHARGE SYSTEM

• US 20090031493A1
• Filed: 07/30/2008
• Published: 02/05/2009
• Est. Priority Date: 07/31/2007
• Status: Active Grant

• Current Assignee: Toto Limited
• Original Assignee: Toto Limited
• Inventors: ABE, Tomoyuki, TSUBOI, Hiroshi, TSUIKI, Shoichi, NAGAISHI, Masayuki, MURATA, Kensuke, KABE, Naoki, TSUJITA, Masami, TSUCHIYA, Katsuhisa
• Granted Patent: US 8,171,578 B2
• Time in Patent Office: Days
• US Class Current: 4/623
• CPC Class Codes: E03C 1/057 touchless, i.e. using sensors
• CPC Class Codes: G01S 13/56 for presence detection presence detection using near field arrangements G01V3/00, e.g. G01V3/08, G01V3/12; burglar, theft or intruder alarms with electrical actuation G08B13/22 - G08B13/26
• CPC Class Codes: G01S 13/582 adapted for simultaneous range and velocity measurements
• CPC Class Codes: G01S 13/88 Radar or analogous systems specially adapted for specific applications electromagnetic prospecting or detecting of objects, e.g. near-field detection, G01V3/00

Abstract

There is provided a water discharge system. A water discharge system includes a water discharge portion; a sensor unit which acquires movement information about an object based on a radiated electric wave, and outputs a detecting signal; and a control unit which controls water discharge of the water discharge portion based on the detecting signal. When it is detected that the object is decelerated to a first threshold velocity or less, the control unit controls the water discharge portion to start the water discharge.

Claims

1. A water discharge system comprising:

a water discharge portion;

a sensor unit which acquires movement information about an object based on a radiated electric wave, and outputs a detecting signal; and

a control unit which controls water discharge of the water discharge portion based on the detecting signal,

wherein when it is detected that the object is decelerated to a first threshold velocity or less, the control unit controls the water discharge portion to start the water discharge.

2. The water discharge system according to claim 1, wherein when a first deceleration of the object is detected, a second deceleration of the object is detected, and when it is detected that a velocity of the second deceleration is the first threshold velocity or less, the control unit controls the water discharge portion to start the water discharge.

3. The water discharge system according to claim 1, wherein when the object is decelerated to the first threshold velocity or less and it is detected that the object approaches the water discharge portion, the control unit controls the water discharge portion to start water discharge.

4. The water discharge system according to claim 2, wherein when the object is decelerated to the first threshold velocity or less and it is detected that the object approaches the water discharge portion, the control unit controls the water discharge portion to start water discharge.

5. The water discharge system according to claim 2, wherein when it is detected that the object moves away from the water discharge portion, the control unit resets a number of times of the deceleration detecting.

6. The water discharge system according to claim 2, wherein when an amplitude of the detecting signal is a threshold value or less for a threshold amount of time, the control unit resets a number of times of the deceleration detecting.