초록 ▼

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 system for controlling the flush volume of a flushometer, comprising: a dual flush valve associated with a waste receptacle fixture, the dual flush valve having a solid waste flush volume corresponding to a full flush volume and a liquid waste flush volume corresponding to a reduced flush volum

1. A system for controlling the flush volume of a flushometer, comprising: a dual flush valve associated with a waste receptacle fixture, the dual flush valve having a solid waste flush volume corresponding to a full flush volume and a liquid waste flush volume corresponding to a reduced flush volume;a presence detection sensor associated with the flush valve, the presence detection sensor configured to monitor for the presence of a user and provide a signal upon the detection of a user in a predefined area;an automatic flush control in communication with the presence detection sensor and the dual flush valve, the automatic flush control comprising a memory unit associated with the presence detection sensor and the flush valve, the memory unit having stored therein computer program instructions for:receiving the presence detection sensor signal; initiating a usage timer upon the detection of the user;stopping the usage timer upon no longer receiving a presence detection sensor signal; generating a usage time tx that equals time elapsed from initiation to stoppage of the usage timer when the user is no longer detected;modifying a usage cycle count Nc by increasing Nc by 1;determining if a number of cycles Nc is less than a predetermined number of cycles Np,;if NcNp,then determining if the usage time tx is greater than or equal to a calculated average usage time tp where if tx is greater than or equal to the calculated average usage time tp, then a full volume flush is performed, and if tx is less than the predetermined average usage time tp, then the reduced volume flush is performed; andmodifying tp according to the value of tx, wherein the automatic flush control provides instructions actuating the dual flush valve for the solid waste flush volume or the liquid waste volume based on usage time. 2. The system of claim 1, wherein Tp and tp further comprise a preset liquid waste use time value T1 and an average liquid waste use time value t1, respectively. 3. The system of claim 2, wherein modifying tp comprises modifying t1 based on tx to calculate a new t1. 4. The system of claim 1, wherein Tp and tp further comprise a preset solid waste use time Ts and an average solid waste use time value ts, respectively. 5. The system of claim 4, wherein modifying tp comprises modifying ts based on tx to calculate a new ts. 6. The system of claim 1, further comprising storing the time tx in a memory unit. 7. The system of claim 1, wherein detecting the user comprises the use of a sensor selected from the group consisting of infrared, capacitance, weight, thermal, motion, and combinations thereof. 8. The system of claim 1, wherein the memory unit further includes instructions to trigger a flush of a specific volume after a predetermined time even if a user is detected.