6 results about "Inflow rate" patented technology

In accordance with the present disclosure, a method for automatically controlled peritoneal perfusion includes receiving perfusion parameters such as a predefined intra-abdominal volume and inflow rate and circulating a perfusate between a reservoir and a subject's cavity using an inflow pump and an outflow pump. A reservoir volume may be measured by a weight sensor, inflow data may be obtained from a flow-rate sensor and a commanded flow rate may be accessed from the outflow pump. A drainage efficiency of the outflow pump may then be estimated using the reservoir volume, inflow rate, and the commanded outflow rate. A drainage efficiency model may be identified from experimental or operational data to represent efficiency dynamics. Based on this model, a perfusion safety control routine may evaluate a safety barrier function and adjust operation of the inflow and outflow pumps to maintain safety and compliance with the perfusion parameters.

A control method, a control system, and a non-transient computer-readable storage medium are provided. The control method is applicable to a pumping station comprising one or more pumps. The method may include: comparing an inflow rate of the pumping station with a flow rate for optimal energy consumption of the pumping station; determining, based on whether the inflow rate of the pumping station is greater than or equal to, or less than or equal to, the flow rate for optimal energy consumption of the pumping station, a corresponding constraint that indicates whether a target outflow rate of the pumping station is to be greater than or equal to, or less than or equal to, the flow rate for optimal energy consumption of the pumping station; and setting a target outflow rate that meets the constraint, for constant flow rate control of the pumping station.

The invention discloses a remote cooperative control platform and method for a distributed sewage treatment facility, and the method comprises the steps: constructing an interval uncertainty set based on water inlet flow and water outlet flow, carrying out the constraint of the change rate of the water inlet flow, judging an abnormal state, and triggering the cooperative control; an effective outflow model of the actuator is established, a worst net inflow envelope is constructed, and the buffer time under the worst working condition is calculated; generating a scene cluster formed by a plurality of scenes, calculating buffer time under each scene, and checking by adopting quota type opportunity constraint; switching between a rhythm buffering strategy and a cross-station load sharing strategy is carried out based on the continuity of the risk margin in a preset time window; and carrying out capacity, routing accessibility and self risk margin screening on the candidate sites to obtain selected sites, carrying out skyline optimization on the selected sites based on a partial order relation, and distributing abnormal water volume to the selected sites. According to the system, self-adaptive cooperative control of the distributed sewage treatment facilities based on interval optimization and risk prediction is realized.

This invention provides a method and apparatus for calculating pipeline inflow by integrating physical mechanisms and data-driven approaches. The method includes: acquiring a set of inflow characteristic parameters for several rainwater collection devices in a target area's drainage network during a predicted time period; processing each set of inflow characteristic parameters using an inflow prediction model to obtain the rainwater inflow for each rainwater collection device during the predicted time period. The inflow prediction model is trained based on several samples of inflow characteristic parameters and corresponding labels determined by a physical simulation model based on physical mechanisms. This invention, through training, establishes a mapping relationship between rainwater collection devices and inflow rates across different complex sets of inflow characteristic parameters. By processing the inflow characteristic parameter set for each rainwater collection device using the inflow prediction model, the accurate rainwater inflow for each rainwater collection device can be determined.

The present application relates to coal mine drainage monitoring system technical field, disclose a kind of multistage drainage collaborative control method based on water inflow prediction, comprising the following steps:1) obtain current time, and according to the parameter set, determine the peak valley section where current time is located;2) obtain the water level of current water warehouse;3) according to the water inflow rate of unit time in current water warehouse, and predict the water inflow in this peak valley period;4) according to the peak valley period where it is located, calculate the number of water pump required to be started;5) superimposed calculation the number of water pump required to be started in advance corresponding to the drainage capacity of lower pump house that has been started;6) in combination with the water level situation of upper pump house and this level pump house, judge whether to allow drainage.The present application reads the water level of each water warehouse and other important operating data, in combination with the current state of upper and lower pump house, gives the signal of allowing or prohibiting the drainage of this level pump house, and then realizes the linkage control between each level pump house, to ensure the operation of the entire coal mine underground drainage system under the condition of safety and stability.