A multi flush volume flush valve is in communication with an automatic flush control. The flush control determines the presence of a user and the amount of time the user uses the toilet. The usage time is compared to a predetermined time value to determine the appropriate flush volume based on an as
A multi flush volume flush valve is in communication with an automatic flush control. The flush control determines the presence of a user and the amount of time the user uses the toilet. The usage time is compared to a predetermined time value to determine the appropriate flush volume based on an assumption regarding usage time and flush volume needs. The comparative value statistically adjusts to the restroom traffic.
대표청구항▼
1. A method for controlling the flush volume of a flush valve, comprising the steps of: detecting the presence of a user;initiating a usage timer upon detection of the user;stopping the usage timer upon the cessation of detection of the presence of the user, thereby generating a usage time tx repres
1. A method for controlling the flush volume of a flush valve, comprising the steps of: detecting the presence of a user;initiating a usage timer upon detection of the user;stopping the usage timer upon the cessation of detection of the presence of the user, thereby generating a usage time tx representing elapsed time;comparing the usage time tx to an average usage time tp or, if tp does not exist, to a preset usage time Tp;selecting a flush volume to be used for a flush event based on the comparison, andif Tp was used for the comparison, averaging Tp and tx to generate average usage time tp;if tp was used for the comparison, averaging tp and tx to generate a new average usage time which becomes tp. 2. The method of claim 1, wherein tp is ti, a predetermined average liquid waste use time and further wherein selecting the flush volume comprises, if tx is greater than then selecting a full volume flush and if tx is less than ti, then selecting a reduced volume flush. 3. The method of claim 1, wherein tp is tl, a predetermined average solid waste use time and further wherein selecting the flush volume comprises, if tx is greater than ts, then selecting a full volume flush and if tx is less than ts, then selecting a reduced volume flush. 4. A computer program product for controlling the flush volume of a flush valve, the program product comprising machine readable program code for causing, when executed, one or more machines to perform the following method steps: determining the presence of a user;upon determination of the presence of a user, initiating a usage timer;stopping the usage timer upon the cessation of detection of the presence of the user, generating a usage time tx; anddetermining if the usage time tx is greater than or equal to a predetermined average liquid waste use time tl, if tx is greater than or equal to tl, then a full volume flush is performed and modifying tl based on tx to calculate a new tl, if tx is less than tl, then a reduced volume flush is performed. 5. The program product of claim 4, further comprising a predetermined average solid waste use time ts. 6. The program product of claim 5, further comprising, if tx is greater than ti, then modifying ts based on tx to calculate a new ts. 7. The program product of claim 4, further comprising storing the time tx in a memory unit. 8. The program product of claim 4, wherein detecting the user comprises the use of a sensor selected from the group consisting of infrared, capacitance, weight, thermal, motion, and combinations thereof.
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