URINAL FLUSHING DEVICE

PROBLEM TO BE SOLVED: To increase an accuracy in human body detection irrespective of whether the number of users is large or small by eliminating the erroneous detection of human body due to the effect of a urinal installation environment. SOLUTION: This urinal flushing device includes: a urinal; a water supply part for supplying water to flush the ball part internal space of the urinal; a doppler sensor for transmitting and receiving a microwave forward of the urinal and outputting detection data; and a controller for discriminating the approach of the human body to the urinal or the flow of urine discharged from the human body according to the values of the detection data. The valve of the water supply part is controlled according to the results discriminated by the controller. The controller counts the number of detections of the approach of the human body or the flow of urine, extracts the detection data the values of which are equal to or lower than a first approach data value estimating the approach of the human body until the number of detections reaches a predetermined number and discriminated to be the flow of urine after that and accumulates the detection data as approach data which is the true value of the human body, and sets the minimum value of the approach data as an approach detection determination value. COPYRIGHT: (C)2010,JPO&INPIT