10results about How to "Realize dynamic regulation" patented technology

The application relates to the technical field of semiconductor bridge electrostatic discharge protection and current protection, and discloses an electrostatic discharge and current protection circuit of a semiconductor bridge, which comprises an ESD protection circuit, a current protection circuit and an NMOS connected in parallel, the ESD protection circuit comprises a bidirectional transient suppression diode and a capacitor connected in parallel, the bidirectional transient suppression diode clamps a transient high voltage by breakdown conduction, the voltage is limited in a safe range, the capacitor reduces a voltage rising rate and suppresses overshoot by shunting and absorbing a transient current, the NMOS provides a low-resistance discharge path, and the voltage and current impact applied to the semiconductor bridge are reduced; the current protection circuit comprises a bidirectional rectifier circuit and a detection circuit; and the NMOS is connected between the detection circuits. The application can realize ESD protection and current protection of the semiconductor bridge, prevents current from damaging the structure, and guarantees the safety of the semiconductor bridge working in an electromagnetic and ESD environment.

The utility model provides a kind of circuit of automatic control computer power supply start, belong to computer power supply technical field, including power access module, power output module, backboard socket module, power access in position detection module, voltage division control module and triode switch module;Power access in position detection module is electrically connected with power access module by backboard socket module, the electric connection voltage division control module of power access in position detection module, voltage division control module is electrically connected with triode switch module by starting control bus, triode switch module is electrically connected backboard socket module, backboard socket module is electrically connected power output module.Power access in position detection module detects the in position condition of power access module, and exports detection signal, to utilize the conduction and cut-off of triode switch module dynamically control the power supply to electric computer, realizes the dynamic regulation and control to computer power supply work and standby state, greatly improves the power supply reliability to electric computer.

The application discloses a kind of based on edge computing's Internet of Vehicles low latency communication method and system, method includes: edge node obtains historical operation data and obtains real-time evaluation network communication link and the state parameters of edge node itself performance;Edge node is based on historical operation data and real-time state parameter prediction generates communication delay value, and real-time monitoring edge node resource to generate comprehensive load index;When communication delay value exceeds preset delay threshold or comprehensive load index shows that edge node is overloaded, triggers edge node to carry out task migration;Edge node selects another edge node as migration target node, and part of task is transferred to migration target node execution.The application identifies potential high latency state in advance by delay prediction, and then triggers migration, transfers task from high load node to low delay or resource sufficient target node, so as to significantly reduce average response latency at system level, improve service continuity.

The application provides a kind of adaptive soft start control method and system based on load prediction, before the start of belt conveyor, the initial load weight value on belt conveyor is obtained;Obtain the initial soft start parameter set corresponding to the load interval where the initial load weight value is located, the initial soft start parameter set includes start time, start curve slope and torque limit value;In response to the input of initial soft start parameter set, start the motor of belt conveyor;Within the first preset time period after the start of belt conveyor, real-time collection of actual load weight value and motor current value in operation;Based on the actual load weight value, obtain the fluctuation range of motor current value;Based on the relationship between the collected motor current value and the fluctuation range, correct the initial soft start parameter set;Real-time feedback of the corrected parameters to motor controller;The application effectively prevents belt slip, belt breakage and other faults, prolongs the service life of the equipment, improves the operation efficiency and safety of the whole conveying system.

This application provides a method and system for detecting antibiotic pollution in water bodies based on spectral characteristics, belonging to the field of water environment monitoring and analysis technology. First, this application simultaneously acquires the surface-enhanced Raman spectrum and redox potential time-series data of the water sample to be tested. Next, the ratio of the characteristic peak intensities of the target antibiotic is extracted from the spectrum to generate a first feature set. Simultaneously, wavelet packet decomposition is performed on the potential data, and energy entropy is calculated to construct a second feature set. Subsequently, the two feature sets are concatenated, and a mutual information maximization algorithm is used to filter out the target feature subset highly correlated with concentration. Finally, using a support vector projection regression model trained based on a structural risk minimization mechanism, and through kernel function mapping and hyperplane projection operations, the accurate detection of the target antibiotic concentration in the water sample is achieved. This application improves the anti-interference capability and quantitative accuracy of antibiotic detection in complex water body backgrounds.

The utility model discloses a novel agar salt bridge type electrical stimulation cell culture device which comprises a base, a top cover, a salt bridge positioning module and an electrical stimulation module, the top cover is mounted on the base, and a plurality of groups of optical observation windows are arranged on the top cover; each group of salt bridge positioning modules comprises a base and a salt bridge positioning buckle; an adjusting mechanism is arranged between the salt bridge positioning buckle and the base, and the adjusting mechanism is used for adjusting the height of the salt bridge positioning buckle; the electrical stimulation module comprises a PCB (Printed Circuit Board) and a plurality of groups of electrode columns; the PCB is mounted on the top cover; and the electrode column is arranged on the PCB through a threaded connection structure. The novel agar salt bridge type electrical stimulation cell culture device disclosed by the utility model can be matched with a standard commercial cell culture dish for use, the universality is wider, an experimenter can conveniently observe the cell / tissue state in the commercial cell culture dish, and meanwhile, the electric field intensity gradient can be conveniently adjusted.

The application belongs to the technical field of galvanizing equipment, and particularly discloses a furnace nose system capable of removing slag, a method, a terminal and a medium. The furnace nose system comprises a furnace nose body, a working groove for containing zinc liquid is formed in the furnace nose body, and an overflow groove is arranged in the working groove. The system further comprises a zinc pumping pump communicated with the working groove, a zinc blowing pump arranged in the working groove, a liquid level measuring unit for measuring the liquid level of the zinc liquid, and a control unit. The control unit adjusts the operating state of the zinc pumping pump according to the liquid level signal output by the liquid level measuring unit, and controls the zinc blowing pump to spray the zinc liquid to the overflow groove area when the slag removal condition is met, so as to clean the zinc slag formed at the overflow groove on line. The furnace nose system can improve the timeliness and stability of the zinc slag cleaning of the furnace nose area, reduce the frequency of manual intervention, and improve the operation reliability of the continuous hot galvanizing production line.

This invention relates to the field of solid waste conveying technology and discloses a solid waste conveying system and method, including a conveying component, an adjusting component, and a monitoring component. The conveying component includes a pipeline with an inlet and an outlet. The inlet is used to convey solid waste into the pipeline, and the outlet is used to discharge solid waste from the pipeline. The adjusting component includes an adjusting ring and a moving component. The adjusting ring is disposed in the pipeline and is used to adjust the communication area between the outlet and the pipeline. The moving component is used to drive the adjusting ring to move. The monitoring component includes a pressure sensor and a control unit. The pressure sensor is used to monitor the internal pressure of the pipeline, and the control unit is connected to the pressure sensor and the moving component. The control unit moves the adjusting ring to adjust the communication area between the outlet and the pipeline according to the internal pressure of the pipeline monitored by the pressure sensor. The solid waste conveying system of this invention captures changes in the pressure inside the pipeline in real time and triggers an adjusting action at the initial stage of blockage, preventing the blockage from worsening.

This invention discloses a laser powder bed additive manufacturing apparatus based on dynamic local thermal field control, belonging to the field of additive manufacturing technology. It addresses the technical problem of low and uneven temperatures within the forming area caused by preheating the forming substrate and then heating the entire powder bed in existing additive manufacturing apparatuses. The apparatus includes a forming chamber and a lifting mechanism within it, a forming substrate, an independent forming base, and a modular stacked heating assembly. The modular stacked heating assembly includes multiple vertically stackable heating units, each with a ring-shaped heating sleeve structure. The heating units are fitted around the independent forming base and around the part to be formed on the independent forming base, and the heating units are dynamically stacked online as the printing height of the part increases. This invention increases the temperature within the forming area through localized heating and enables uniform heating across the entire forming area.

This invention discloses a cognitively friendly dynamic control method and system for the air environment in built spaces, belonging to the field of building environment and human factors engineering. This invention passively collects multi-source heterogeneous data in real-world building space scenarios to construct a standardized time-series database. Then, it constructs a multi-mediation structural equation model to deconstruct the differentiated transmission paths of different pollutants on cognitive load. Next, it identifies the critical threshold for a sharp decline in cognitive performance under long-term exposure and establishes a three-dimensional dynamic mapping model of "concentration-duration-cognition." This model is then fine-tuned using individual small-sample data to form a cognitive load prediction model. Finally, the real-time predicted cognitive load is compared with the critical threshold to generate air control commands and trigger the building space air environment control equipment. This invention solves the problems of existing building space air environment control relying on static standards, lacking human factor feedback, and ignoring individual differences, achieving precise, dynamic, and personalized dynamic control of the air environment.