1112results about "Level control" patented technology

The invention provides a hydro-junction water level adjusting method and system. Wherein the sediment deposition space-time atlas containing the sedimentary gradient is constructed and periodically corrected through scanning of an underwater robot and synchronous acquisition of satellite remote sensing data. A radar array is deployed at a bend section of a flood discharge channel, and vector distribution of a three-dimensional sediment flow velocity field is analyzed by using multi-frequency pulse signals. Through correlation analysis of the dynamic coupling sedimentary gradient and the flow velocity field, a correlation area of flow velocity sudden change and sediment deposition is accurately identified, and a constraint condition set including coordinate positioning and a flow-sediment matching rule is established. And in combination with real-time water level monitoring data, calculating and generating a dynamic adjustment parameter sequence of the opening degree of the flood discharge gate by using a constraint condition set, thereby realizing accurate regulation and control of the water level. According to the technical scheme, the flood discharge parameters are intelligently optimized, the water level of the hydro-junction can be accurately regulated and controlled, the sediment deposition problem of a high-sediment-content water area is effectively relieved, and safe operation and flood control efficiency of the junction are guaranteed.

Disclosed is a water heater including a case provided with an air supply hole and an air discharge hole, a burner provided in an interior of the case, and a humidified air supply part that provides humidified air to the burner together with a fuel. The humidified air supply part includes a first accommodation tank that accommodates water to generate vapor, and a humidified air supply tank that provides a space for supplying the vapor supplied from the first accommodation tank to air introduced into an interior of the case through the air supply hole.

The invention discloses a two-phase immersed liquid cooling liquid level intelligent dynamic regulation and control system and method, and relates to the technical field of liquid cooling intelligent processing. The two-phase immersion type liquid cooling liquid level intelligent dynamic regulation and control method comprises the steps that S1, state observation data, execution control data and log data in the liquid cooling liquid level regulation and control process are collected and preprocessed, and a standardized liquid cooling state data set is constructed; s2, the synchronism of the evaporation strengthening trend is evaluated, and the opening degree of an electronic control valve is adjusted; s3, analyzing a control feasible region under gas-liquid balance constraint, and optimizing the working mode of the two-way pump; and S4, the consistency of the feedback trend and the rolling decision is analyzed, and the circulating flow of the cooling coil and the heat exchange intensity of the condenser are adjusted. The problems that when power consumption of an existing two-phase immersion liquid cooling system changes dramatically, due to lag control of a single sensor and lack of multi-dimensional data prediction, evaporation and liquid supplementing actions are prone to being mismatched, and liquid level decline, pressure abnormity and chip dry burning are caused are solved.

The invention relates to the field of intelligent control based on image recognition, and discloses a Lyocell fiber production continuous feeding control method and system based on image recognition, and in the method, a feeding and conveying device continuously feeds a pulp raw material into a swelling machine at a preset feeding speed without shutdown; moreover, a camera arranged in the swelling machine obtains a to-be-detected liquid level image in the swelling machine containing the circular liquid level boundary in the non-stop continuous feeding state, then the current liquid level height in the swelling machine is obtained according to the to-be-detected liquid level image, the current liquid level height is compared with the target liquid level height, and a liquid level difference value is obtained; and the liquid level difference value serves as a control factor, the opening degree of a solvent conveying pump at a solvent inlet of the swelling machine is controlled based on a PID control algorithm, and the current liquid level height in the swelling machine is kept within a set range. Waste of production time is avoided, the large-yield requirement is met, and the overall production efficiency is improved; in addition, it is also ensured that the produced pulp porridge has good uniformity.

A grain unloading monitoring system for use in operations moving grain from a grain cart to a grain truck or container utilizing at least one sensor configured to monitor a grain level within a grain container, a processor in electronic communication with the at least one sensor, and a command module in electronic communication with the processor. The command module is configured to command one or more components on a grain cart or grain container to distribute unloaded grain and prevent overfilling of the grain container based on the monitored grain level and grain fill rate.

The invention discloses a double-capacity water tank control method based on multi-target reward Q learning, and belongs to the technical field of machine learning and automatic control. The method comprises the following steps: firstly, establishing a discretization mathematical model of a double-capacity water tank liquid level control system, and designing a multi-target reward function; secondly, empirical data are stored only when the liquid level tracking error exceeds the limit or the control quantity suddenly changes, and sampling weights are distributed according to award absolute values; and finally, updating the Q table based on the time difference error, and performing closed-loop real-time control on the double-tank water tank according to the dynamically adjusted PID parameter. According to the method, a five-dimensional reward function is designed, and multi-index dynamic balance is realized through linear weighting; the empirical tuple is stored only when the liquid level tracking error exceeds the limit, and the quick response requirement of the dynamic time-varying scene of the double-capacity water tank is met; dimensionality reduction is performed on a continuous state space by adopting a non-uniform grading strategy, so that the calculation complexity is remarkably reduced; a perception-decision-execution integrated framework is constructed, and the dependence of a traditional control method on a mathematical model of the water tank is abandoned.

The invention relates to the technical field of foundation pit drainage, and provides a deep foundation pit drainage system and a use method.The method comprises the steps that a1, an annular dewatering well is arranged on the periphery of a deep foundation pit, and underground water is collected and lowered through the annular dewatering well; a2, a drainage network in the foundation pit is established to eliminate surface rainfall and seepage water; a3, based on a preset water level control strategy, a drainage pumping device is started to drain the collected underground water away from the foundation pit; a4, hydrological changes inside and outside the deep foundation pit are monitored, and operation parameters of the dewatering well and the drainage system are adjusted in time so that the safe water level state in the deep foundation pit can be maintained; through the scheme of the embodiment of the invention, the problem of how to effectively prevent underground water from seeping into the foundation pit in a high-water-level area by the deep foundation pit drainage system can be solved.

The invention discloses a water level monitoring system based on flood discharge gate control, and relates to the technical field of flood discharge gate control, and the water level monitoring system comprises an upstream water level monitoring module, a downstream water level monitoring module, a gate discharge monitoring module, an early warning terminal and a database. Analyzing a water level future coefficient corresponding to the upstream end of the reservoir, judging whether the reservoir needs to open a gate for flood discharge or not, and analyzing to obtain a gate opening width corresponding to flood discharge of the reservoir, and analyzing to obtain a gate opening width corresponding to development of the downstream end of the reservoir when no flood occurs at the upstream end of the reservoir; meanwhile, the state of the reservoir gate during flood discharge is known, and whether adjustment is conducted or not is analyzed, so that safe reservoir flood discharge is achieved, ecological safety is guaranteed, efficient and accurate flood discharge is achieved, it is further guaranteed that surrounding development obtains effective water source support, and reasonable allocation of water resources and efficient utilization of the resources are achieved.

The invention provides a method and device for controlling the liquid level of molten glass in a kiln, a terminal and a medium. The method comprises the following steps: acquiring structural parameters and thermal parameters of the kiln; based on the structural parameters and the thermal parameters, constructing a dynamic mathematical model for describing the liquid level change of the molten glass; the target function of the dynamic mathematical model is used for measuring the deviation between the actual liquid level height and the ideal liquid level height of the molten glass in the kiln; calculating an optimal control law that minimizes an objective function of the dynamic mathematical model based on a linear quadratic regulator algorithm; and adjusting the liquid level height of the molten glass in the kiln based on the optimal control law. According to the method, the dynamic mathematical model used for describing the liquid level change of the molten glass is constructed, the deviation minimization between the actual liquid level height and the ideal liquid level height of the molten glass in the kiln serves as the target, the optimal control strategy is determined, and high-precision stable control over the liquid level height of the molten glass in the kiln is achieved.

The present disclosure provides a non-condensable gas reduction system that is easy to maintain and returns non-condensable gas contained in geothermal fluid to a reduction well. [Solution] A non-condensable gas reduction system for use in a geothermal power plant comprising a gas-liquid separator that separates geothermal fluid flowing from a production well into a first gas and a first liquid, an evaporator that performs heat exchange between the first gas and a working medium, a turbine that rotates by the working medium discharged from the evaporator, and a condenser that cools the working medium that rotates the turbine and condenses the working medium into a liquid, the non-condensable gas reduction system comprising: a pump that pressurizes a third liquid to be sent to a reinjection well; and an ejector driven by the third liquid, that attracts non-condensable gas contained in the first gas and remaining uncondensed in the evaporator, and discharges a fourth liquid which is a mixture of the third liquid and the non-condensable gas, wherein the first liquid and the fourth liquid are mixed and sent to the reinjection well.

A liquid level controlling apparatus includes a plurality of main sinks, a storage sink, a pump and a connection tube. One of the plurality of main sinks includes a transmission port and a first liquid level detector. The storage sink includes a delivery port and a second liquid level detector. The pump includes an outlet and an inlet. The connection tube includes an rehydration tube and an drain tube. The rehydration tube has a first rehydration section and a second rehydration section. The first rehydration section is connected between the delivery port and the inlet. The second rehydration section is connected between the outlet and the transmission port. The drain tube has a first drain section and a second drain section. The first drain section is connected between the transmission port and the inlet. The second drain section is connected between the outlet and the delivery port.

The invention is suitable for the technical field of pump station intelligent control, and provides a pump station water level self-adaptive regulation and control method and system, and the method comprises the following steps: obtaining water level time sequence data, equipment state data and environment information data in real time; predicting a water level value of a future preset time window based on a physical mechanism prediction model according to the water level time sequence data, the equipment state data and the environment information data to obtain a first prediction value; based on a data-driven prediction model, according to the water level time sequence data, the equipment state data and the environment information data, predicting a water level value of a future preset time window to obtain a second prediction value; performing adaptive weighted fusion on the first predicted value and the second predicted value to obtain a comprehensive predicted value; and according to the comprehensive predicted value, carrying out self-adaptive regulation and control on the pump station water level. According to the invention, by constructing a hybrid prediction model based on a physical mechanism and data driving and introducing an adaptive weighted fusion mechanism, accurate short-term prediction and adaptive regulation and control of the future water level are realized.

The invention relates to the technical field of drainage control, in particular to a liquid level sensing drainage control method and system based on electronic and floating ball cooperative detection, and the method comprises the steps: fusing the angular displacement, capacitance value and acceleration disturbance data of a floating ball, and constructing a liquid level state observer; a dynamic compensation factor is introduced to strip liquid shaking interference, and an accurate liquid level reference value is obtained; a composite control vector is constructed based on the liquid level deviation and the change rate, and a drainage instruction is generated through analysis to control a valve to act; meanwhile, a self-adaptive feedback adjustment mechanism is established, observer parameters are dynamically calibrated through liquid level response residual errors, and the drifting error of an actuator is offset; according to the technical scheme, the robustness of drainage control can be remarkably improved.

The invention discloses a ship ballast water tank water level real-time monitoring and remote control device, and relates to the field of ship ballast water tank water level control. According to the real-time monitoring and remote control device for the water level of the ship ballast water tank, a first data acquisition and analysis unit is used for acquiring water level monitoring data of each ballast water tank of a ship to be controlled in real time and analyzing the water level monitoring data to obtain an adjusted water level value; the second data acquisition and analysis unit is used for acquiring the ship state monitoring data and the sea condition monitoring data, analyzing to obtain a ship state water level regulation factor and a sea condition water level regulation factor, and analyzing to obtain a corresponding comprehensive water level regulation factor; the water level monitoring value of the corresponding ballast water tank is obtained through the comparison control unit, the water level monitoring value and the water level control interval are analyzed, and control measures are taken based on the analysis result so as to ensure that the water level of the ballast water tank can be corrected in time under the severe sea condition. Therefore, the sailing safety of the ship is enhanced.

The invention discloses an open channel high-flow interference water level control method based on storage compensation and improved PID coupling, and the method comprises the following steps: collecting channel operation parameters in real time, including current flow, water level fluctuation amplitude, predicted demand and on-way resistance coefficient distribution; dynamically constructing a channel damping effect model based on the on-way resistance coefficient distribution, calculating water level control response delay time, and generating a preposed adjustment coefficient; dynamically adjusting the actual participation volume according to the maximum effective storage volume and the maximum effective storage volume of the stagnant storage area; a compensation control quantity is generated by the input improved PID controller; and the compensation control quantity is executed to adjust the opening degree of the channel gate, and dynamic suppression of water level fluctuation is achieved. The water level stability and the control effect of the open channel can be improved.

The invention discloses a curve model filtering-based high-speed wire rotational flow pool liquid level correction control method and system, and relates to the technical field of steel production, and the method comprises the following steps: collecting a liquid level signal, and constructing a fixed curve model according to a process stage; a staged deviation zone is set according to the model, deviation is compared and calculated in real time, and abnormity judgment is carried out; performing previous normal value substitution, model prediction value substitution or triggering process alarm on the abnormal section according to the duration to obtain a substitution sequence; and performing composite filtering on the alternative sequence, and outputting a corrected liquid level for closed-loop control and visualization. Through four-stage fixed curve modeling and staged deviation band judgment, graded substitution is triggered by a pull-back amount, a phase drift amount and a logic consistency rate, and compound filtering closed-loop control is performed on a substitution sequence, so that accurate anomaly detection, low false alarm, continuous curve and stable control are realized.

The invention discloses a fuming furnace waste heat boiler liquid level automatic control device, method and system and a medium, and the method comprises the steps that sensing data are obtained and preprocessed, and the sensing data at least comprise steam drum liquid level data, steam output flow data and boiler feed water flow data; performing three-impulse cascade PID control based on the sensing data to obtain a control instruction, wherein the control instruction comprises a theoretical water replenishing value, a valve opening instruction and a water pump frequency converter adjusting instruction; regulating valve control and constant pressure difference control are carried out based on the control instruction in combination with a preset interval; and performing synchronous control based on a preset safety interlocking protection mechanism, wherein the synchronous control comprises pump spare power automatic switching, regulating valve abnormity alarm, over-limit water level interlocking and man-machine interaction. Through innovative three-impulse cascade PI D, dynamic interval control and constant pressure difference optimization, the defects of a traditional method under the complex working condition of the fuming furnace are overcome, high-precision and high-stability liquid level control is achieved, and meanwhile equipment safety and economical efficiency are remarkably improved.

The invention belongs to the technical field of intelligent control, and particularly relates to a water gate intelligent control method based on water conservancy monitoring data, and the method comprises the steps: collecting monitoring data and a water surface video of a water storage body where a water gate is located; estimating flow data of a plurality of to-be-evaluated positions according to the flow data of a plurality of monitoring positions in the monitoring data, inputting the flow data and the monitoring data into a water level prediction model, and adjusting the opening degree of a water gate according to an obtained water level prediction value; wherein the flow data of the plurality of to-be-evaluated positions is estimated by selecting a plurality of principal components from all components according to stability and distinction, dividing all the principal components into a plurality of high-frequency components and a plurality of low-frequency components according to frequency, and estimating the flow data of the plurality of to-be-evaluated positions according to the convergence of the to-be-evaluated positions and adjacent monitoring positions on the low-frequency components. And determining an estimated value of the flow data of the to-be-evaluated position according to the high-frequency component of the to-be-evaluated position and the convergence of the to-be-evaluated position and other monitoring positions on the high-frequency component. According to the invention, the accuracy of intelligent control is improved.

The invention relates to the technical field of flotation machinery, and particularly discloses a high-precision automatic liquid level control system which comprises an intelligent controller, a PID controller, a laser distance measuring sensor, a floating ball and an intelligent valve positioner, the floating ball floats on the upper surface of liquid in a flotation tank, and the upper end of the floating ball is connected with a position feedback plate; the laser distance measuring sensor is used for measuring the position of the position feedback plate to obtain an actual liquid level and transmitting the actual liquid level data to the PID controller; the PID controller is used for carrying out PID operation on the actual liquid level and the set liquid level and outputting a signal to the intelligent valve positioner, and the intelligent valve positioner is used for controlling the air cylinder to move and opening or closing the valve through the linkage mechanism and feeding back execution parameters to the intelligent controller, so that the liquid level is automatically adjusted on line.

The invention relates to the technical field of wax dipping equipment, and provides wax film wax dipping equipment which comprises a wax dipping furnace, a first mounting frame, a second mounting frame, a first ultrasonic sensor, a first pneumatic valve, a wax supplementing furnace, a clamping part, a controller, a lifting module and a rotating module, the lifting module is mounted at one end, close to the wax dipping furnace, of the first mounting frame, the rotating module is connected with a liftable part of the lifting module, and the clamping part is connected with a rotatable part of the rotating module; the rotating module is used for rotating a product to be waxed, the clamping part is used for clamping the product to be waxed, when the waxing operation is executed, the lifting module moves downwards to enable the product at the clamping part connected with the rotating module to be soaked in wax liquid of the waxing furnace, and the lifting module moves upwards to enable the product at the clamping part to be separated from the wax liquid and then drives the product to be waxed. And the rotating module is used for enabling the product at the clamping part to rotate clockwise or anticlockwise around the axis.

The present application relates to a kind of water spraying truck water level intelligent control system, including frame, the top of the frame is fixed with water tank, the tail of the water tank is fixedly installed with display screen, the bottom of the frame is fixedly connected with scissor frame, the frame and the scissor frame are fixedly connected with first electric push rod, the frame is driven connection with spray pipe between the scissor frame, the spray pipe includes main spray pipe and vice spray pipe, the bottom of the scissor frame is fixedly connected with main spray pipe, the both ends of the main spray pipe are hingedly connected with vice spray pipe, the main spray pipe is communicated with the vice spray pipe, the second electric push rod is fixedly connected between the vice spray pipe.The present application not only solves the problem that the working distance is not easy to control in the prior art when water spraying truck works, leading to often spraying to half without water, or after spraying work is completed, there is still a lot of water in water tank, but also can increase spraying area, improve work efficiency.

The invention provides an automatic dosing adjustment method, device and system and a storage medium, and relates to the technical field of automatic control. The automatic dosing adjusting device comprises a flow measuring barrel, a processor, an automatic adjusting valve, a pneumatic pipe clamp valve and a liquid level sensor; the flow measuring barrel is connected in series to the downstream of the automatic regulating valve; the pneumatic pipe clamp valve is connected to the downstream of the flow measuring barrel in series. According to the structure, through an indirect metering mode of the flow measuring barrel and an unobstructed channel of the pneumatic pipe clamp valve, the problem of core blockage of a traditional dosing system in measurement and control points is integrally solved. The high-reliability hardware is integrated into a closed-loop automatic control system by a processor, and an automatic regulating valve can be instructed to perform precise regulation according to real-time and accurate flow data, so that stable and accurate automatic dosing is realized, and the system reliability and the medicament utilization efficiency are remarkably improved.

The present disclosure provides a limestone slurry tank liquid level regulation system and method, comprising: a feedforward regulation module, used to monitor the flow signal of recycled water to the limestone slurry tank, predict the change trend of the liquid level of the limestone slurry tank according to the flow signal, and generate a regulation instruction; a liquid level feedback regulation module, used to obtain the real-time liquid level measurement value of the limestone slurry tank, and control the opening of the electric door of the recycled water to the limestone slurry tank according to the deviation between the real-time liquid level measurement value and the liquid level setting value, and perform liquid level regulation; a process water interlock module, used to control the opening or closing of the electric door of the process water to the limestone slurry tank when the liquid level of the limestone slurry tank exceeds a preset threshold range; a logic control module, used to receive the control signals of the feedforward regulation module, the liquid level feedback regulation module and the process water interlock module, and dynamically adjust the liquid level of the limestone slurry tank through logic configuration.

The invention provides a sterilization pot self-adaptive water supplementing control method and system based on water level monitoring and a medium, a dynamic water level threshold value is generated by reading a historical water database, and water level information of a heating water tank is obtained in real time; when the water level is lower than a protection water level threshold value, a heating power supply is cut off and dry burning protection is triggered; when the water level is lower than the forced water level threshold value, full-amount water supplementing is started until the water level rises to the forced water level threshold value; when the water level is between the forced water level threshold value and the dynamic water level threshold value, pulse water replenishing is started based on the deviation between the real-time water level and the target water level to dynamically adjust the water replenishing rate; and finally, updating the water database after the sterilization period is finished to form closed-loop optimization. According to the method, the water replenishing time is pre-judged through the dynamic threshold value, the water replenishing efficiency and the temperature stability are balanced based on the grading response mechanism, the control parameters are continuously optimized by utilizing historical data, the dry burning risk and the manual intervention requirement are remarkably reduced, and safe and autonomous operation of the sterilization equipment under the variable-load and long-period working conditions is achieved.

The utility model discloses an automatic water replenishing device for wet maintenance, which comprises a mounting bracket and a thermostatic bath for placing a source bottle, a control component, a liquid replenishing component and a detection component are arranged on the mounting bracket, and a liquid conveying pipeline for conveying liquid is arranged between the liquid replenishing component and the thermostatic bath. The liquid supplementing assembly, the detection assembly and the thermostatic bath are electrically connected with the control assembly, and the detection assembly is used for detecting the weight of liquid in the thermostatic bath, transmitting measured data information to the control assembly for analysis and issuing a control instruction to the liquid supplementing assembly; the full-automatic water replenishing device is simple in structure and convenient and fast to use, the control assembly, the liquid replenishing assembly and the detection assembly are adopted to form the full-automatic water replenishing device, automatic source liquid replenishing is achieved, manual operation is reduced, the weight of source liquid in the source bottle is detected through the thermostatic bath, measured data information is processed, and the water replenishing efficiency is improved. And then the control assembly controls the on-off of the liquid supplementing assembly, so that the liquid supplementing assembly can automatically supplement and add the source liquid into the source bottle.

The utility model relates to a water-saving type park gradient water supplementing device which comprises a supporting part, a water storage tank filled with water is arranged at the top of the supporting part, the input end of a second pump body is communicated with the interior of the water storage tank through a pipeline, and the output end of the second pump body is fixedly connected with a hose. A bottom column and a liquid passing pipe are arranged on the side, away from the water storage tank, of the bottom of the supporting part, one end of a hose communicates with the interior of the liquid passing pipe, a water level sensor is arranged at the bottom end of the bottom column, and the second pump body and the water level sensor are both electrically connected with the controller. According to the utility model, the automatic gradient water replenishing for the park lake or river can be realized, and the water resource is effectively saved while the ecology of the park lake or river is ensured.

The application discloses a kind of constant humidity air conditioner humidifier liquid level control device and method, belong to air conditioning and environmental control technical field.The liquid level control device includes perception and feedback module, execution and control module, support and water inlet and outlet module.The beneficial effects of the present application include: the automatic switching of humidifier water supply valve open\close state is realized, so that the dynamic accurate control of humidifier water tank liquid level under high temperature and high humidity condition is carried out;The scheme does not depend on complex electronic detection and control circuit, there is no risk of water vapor diffusion penetration to circuit hardware, can cope with mild scale influence, parts cooperate smoothly, overall structure is stable and reliable, water supply dynamic response is sensitive, boiling interference resistance is strong, suitable for long-term stable operation under high temperature and high humidity environment.

The invention discloses a water level automatic control device for a hydraulic model test, which comprises control units respectively arranged at the water level upstream and the water level downstream of a hydraulic model water tank, and is characterized in that each control unit comprises a door mounting frame, a gate, a threaded rotating rod, a height sensor, a control box, a water level meter and a track, the gate is rotationally connected with a threaded rotating rod, the threaded rotating rod penetrates through the mounting plate and is connected with the electric knob, the height sensor and the control box are mounted on the mounting plate, and the control box is connected with the water level meter through a signal transmission line. The control method comprises the following steps: S1, equipment installation; s2, debugging the device; s3, creating a test item; s4, water level closed-loop control; s5, confirming the water level; s6, collecting and recording data; and S7, completing test cycle monitoring. By adjusting the opening degree of the gate, it is ensured that upstream and downstream water levels are stabilized within the set range, and the problems that in the prior art, manual water level control is low in efficiency and poor in precision in the low-pressure environment are solved.

The invention discloses an intelligent precipitation control system based on a foundation pit waterproof curtain and a water level control method, and belongs to the technical field of engineering construction.The intelligent precipitation control system comprises a cloud control system, a precipitation well, a water suction pump, a precipitation well water level meter and an observation well, the observation well water level meter and the waterproof curtain, and a foundation pit is defined by the waterproof curtain; a dewatering well is arranged in a foundation pit, a water suction pump and a dewatering well water level gauge are arranged in the dewatering well, N observation wells are arranged around an outer shaft of the foundation pit, observation water level gauges are arranged in the observation wells, the dewatering water level gauges send collected water level information in the dewatering well to a cloud control system, and the cloud control system controls the water suction pump to work. According to the intelligent precipitation control system based on the foundation pit waterproof curtain, through the technologies of automatic regulation and control, real-time monitoring, remote control, self-adaptive adjustment and the like, the precipitation efficiency, construction safety and economic benefits are remarkably improved, and manual intervention and resource consumption are reduced.