Patent ID: 7127749

Claim:
An infrared sensitive flushing method adapted for flushing a toilet bowl in an automatic mode, comprising the steps of: a) providing a pulse signal for an infrared sensor through a microprocessor control unit (MCU) installed with a liquid and solid waste flushing system; b) amplifying the pulse signal adapted for directing the pulse signal to an object in a detection area, and generating an infrared signal in response to the amplified pulse signal; and c) amplifying a reflected infrared signal reflected by the object in the detection area and transmitting the reflected infrared signal to the MCU; wherein the reflected signal is analyzed by the MCU by a process of detecting and analyzing signal comprising the steps of: a′) generating a command signal in response to the reflected signal, wherein the command signal is a first signal of performing a liquid waste flushing procedure for a command-operating unit when the object stays in the detection area for shorter than or equal to a first default period of time, wherein the command signal is a second signal of performing a solid waste flushing procedure for a command-operating unit when the object stays in the detection area for longer than a second default period of time; and b′) amplifying the command signal wherein the process of detecting and analyzing signal further comprises a step of generating a preliminary command signal which is a starting signal of preliminary rinsing for the command-operating unit when the object stays in the detection area for a default period of time longer than or equal to 5 seconds before step (a′) such that the command-operating unit starts performing a rinsing process, wherein in the process of detecting and analyzing signal the first default period of time is 60 seconds and the second default period of time is 60 seconds, adapted for transmitting to a command-operating unit such that the command operating unit conduct a flushing according to the command signal.