10results about How to "Regulation and stability" patented technology

The invention discloses a sleep state closed-loop deep brain stimulation method and system based on a multi-modal signal, and the method comprises the steps: preprocessing an obtained electroencephalogram signal and an electromyographic signal, extracting multi-dimensional candidate features, and obtaining a core feature vector through screening; constructing a sleep state prediction model, inputting the core feature vector into the sleep state prediction model, and outputting a probability result of sleep state classification and a corresponding reliability index; executing multi-level physiological safety verification to obtain a target state, and allowing to output a state switching instruction when and only when the multi-level physiological safety verification is passed and the target state meets a preset stable condition; and continuously outputting a corresponding stimulation parameter set to the deep brain stimulation electrode based on a final target state corresponding to the state switching instruction. The problems that in the prior art, in the closed-loop regulation and control process, the sleep state recognition result is excessively relied on, and physiological safety constraint and stimulation continuity control are lacked are solved.

The invention relates to the cross technical field of artificial intelligence and digital platform governance, and discloses a digital labor system closed-loop regulation and control method based on multi-agent reinforcement learning, which comprises the following steps: S1, collecting multi-source data in real time and fusing, and constructing a system state vector; s2, modeling key participants of the system into four types of intelligent agents including a platform, a worker, a demand side and a constraint, and constructing a multi-party Markov game model; s3, a centralized reviewer and distributed actuator architecture is adopted, and a combined regulation and control strategy with stability as a target is generated; s4, calculating three types of stability indexes of the laborer, the demand side and the whole system, and mapping the three types of stability indexes into reinforcement learning feedback signals; and S5, mapping the strategy into a platform executable parameter, performing execution after security verification, and feeding back an execution result to the sensing layer to form a closed-loop regulation and control mechanism. According to the method, multi-agent reinforcement learning is adopted to model a multi-party game, real-time sensing, prediction and regulation are realized, and the stability and robustness of a labor system are improved.

This invention provides a method, system, device, and medium for discrete modulation of microring resonant peaks, belonging to the field of photonic device modulation technology. The method includes: acquiring the output spectral data of a microring resonator and determining the center frequency and light intensity value of each resonant mode to construct a mode energy distribution vector and generate a mode competition matrix; calculating the effective gain value of each resonant mode and determining a target resonant mode based on a preset target frequency to generate corresponding modulation weight parameters; performing discrete modulation processing on the microring resonator to adjust the center frequency and light intensity value corresponding to the target resonant mode; acquiring the output spectral data after discrete modulation processing and updating the mode energy distribution vector and the mode competition matrix, performing iterative modulation until a preset termination condition is met. This invention achieves stable enhancement of the target resonant mode and effective suppression of the influence of multimode competition.

An energy-saving aluminum alloy air quenching rapid cooling system belongs to the technical field of aluminum alloy heat treatment, and comprises a flue gas waste heat recovery module for collecting waste flue gas, the flue gas waste heat recovery module provides heat for a refrigeration module 6, and the refrigeration module 6 provides cold for an air quenching module to realize air quenching of workpieces. The flue gas waste heat recovery module comprises a heat exchanger 8 connected with a waste flue gas collection pipeline, and waste flue gas provides heat for the refrigeration module 6 in the heat exchanger 8. The waste heat of the waste smoke generated in the industrial production process is fully utilized to drive the refrigerating system, dependence on traditional energy is greatly reduced, direct emission of high-temperature smoke is reduced through effective recovery and energy utilization of the waste smoke, pollution load to the environment is reduced, and clean production is achieved.

This application relates to the field of soil improvement technology and provides a slow-release microsphere soil conditioner. The slow-release microsphere soil conditioner comprises a core layer, a shell layer, and an outer layer from the inside out. The core layer includes a calcium source, active components, nutrient components, and fillers. The shell layer covers at least a portion of the surface of the core layer and includes anionic polysaccharides, cationic polymers, and metal-polyphenol coordination compounds. The outer layer covers at least a portion of the surface of the shell layer and includes mineral carbon-based functional components and binding components. This application, through the structure of the core layer, shell layer, and outer layer, and a preparation method matching this structure, enables the different components to exhibit differences in spatial distribution and action time, thereby forming a continuous action pathway of preferential interface conditioning in the outer layer, slow-release regulation in the shell layer, and continuous repair and supply in the core layer.

The invention relates to the technical field of polyolefin cocatalysts, and particularly provides an oscillating micro-reaction system and a method for preparing alkylaluminoxane by using the oscillating micro-reaction system. The system comprises a water phase storage tank, an aluminum alkyl solution storage tank, a tubular microreactor, an oscillation device and a reaction kettle, the tubular microreactor comprises at least one group of spiral tubes with smooth inner walls; outlets of the water phase storage tank and the aluminum alkyl solution storage tank are respectively communicated with an inlet of the spiral pipe, and an outlet of the spiral pipe is communicated with an inlet of the reaction kettle; the oscillation device is arranged on the tubular microreactor, and the water phase storage tank has an emulsification function. On the basis of simple structure and low operation and maintenance difficulty, the oscillation micro-reaction system provided by the invention not only can realize stable regulation and control on the reaction process, but also can solve the problem of blockage of the micro-reactor, and avoids potential safety hazards such as reaction interruption or sudden pressure rise caused by pipeline blockage.

The invention discloses a cold region aquaculture greenhouse multi-energy collaborative environment regulation and control system, which relates to the technical field of environment regulation and control, and comprises a greenhouse structure, an energy end and an environment regulation and control end, the greenhouse structurally comprises an inner-layer framework, an outer-layer framework, a double-layer covering film, stand columns in the greenhouse, supporting rods, snow vibrators arranged on the outer-layer framework, unpowered air caps and photovoltaic panels arranged on the greenhouse roof, a greenhouse north wall, a low south wall and photovoltaic panels on the outer vertical face of the south side of the greenhouse. The energy end comprises a solar heat collection module, a well water module, a water source heat pump module, an energy storage water tank, a tunnel air module, a breeding pool coil pipe loop, a greenhouse space loop and a solar photoelectric module. The environment regulation and control end comprises a ventilation module and a control module. Through cooperative utilization of multiple energy forms such as solar heat collection, well water energy storage, a water source heat pump, tunnel fresh air and photovoltaic power generation, dependence on traditional energy is greatly reduced, and the operation energy consumption of the system is reduced by 30% or above.

The application discloses a kind of refrigeration air conditioner ammonia fluorine combined system and use method, belong to refrigeration air conditioning technical field, including ammonia refrigeration unit one, ammonia refrigeration unit two, circulating bucket one, circulating bucket two, high-pressure liquid accumulator, plate heat exchanger, workshop air conditioner;Ammonia refrigeration unit one suction end and circulating bucket one are communicated, the ammonia refrigeration unit two suction end and the connecting end between ammonia refrigeration unit one and circulating bucket one are communicated, the liquid supply end of circulating bucket one and the liquid inlet end of plate heat exchanger are communicated, back gas end and plate heat exchanger back gas end are communicated, the liquid supply end of circulating bucket two and the liquid inlet end of circulating bucket one are communicated, the liquid supply end of high-pressure liquid accumulator and the connecting end between circulating bucket two and circulating bucket one are communicated, closed circulation pipeline is formed between plate heat exchanger and workshop air conditioner.Can make workshop refrigeration cooling effect promotion, temperature stability reaches standard, energy consumption reduces;System operation safety, avoid ammonia liquid to the harm of personnel.

The utility model discloses a high-strength mould pressing type cable bridge which comprises a main board, the top of the main board is provided with a separation assembly, the surface of the main board is provided with an installation mechanism, the installation mechanism comprises an installation assembly, the installation assembly comprises limiting sliding rails installed on the two sides of the main board, the surfaces of the limiting sliding rails are connected with sliding blocks in a sliding mode, and the sliding blocks are connected with the separation assembly. The utility model relates to the technical field of cable bridges. According to the high-strength mould pressing type cable bridge, by arranging the regulation and control assembly, flexible adjustment of the height of the main board can be achieved, so that the cable bridge can be suitable for different field environments, meanwhile, maintenance operation on a cable in follow-up work is facilitated, supporting can be assisted through a connecting plate, a regulation and control block, a regulation and control rod, a regulation and control box and a supporting rod, and the cable bridge is convenient to use. According to the cable bridge, stress is increased, the strength of the cable bridge is improved, and the cable bridge is more stable in the regulation and control process by arranging the sliding blocks and the limiting sliding rails which are symmetrical.

This invention belongs to the field of ultraviolet absorber technology, specifically relating to an ultraviolet absorber UV-323 and its preparation method. The preparation method includes the following steps: (1) diazotization reaction, (2) coupling reaction, (3) sulfide dispersion reduction, (4) esterification reaction, and (5) crystallization. The purity of the product of this invention is significantly improved. Through optimized process route and solvent recovery-recrystallization purification, the purity of the product can reach over 99%, and the appearance is a white powder, meeting the quality requirements of high-end application fields. The overall reaction yield of this invention is significantly improved. Through optimization of diazotization temperature control, improvement of coupling solvent system, selective reduction of sulfides, and precise control of esterification conditions, the yield of each step is effectively guaranteed, providing an economical and feasible technical solution for industrial-scale production.