19results about How to "Avoid wild swings" patented technology

The present application relates to the technical field of storage protection, and particularly relates to a security event driven storage protection method and system for flash memory chips.A security event driven storage protection method for flash memory chips, comprising: an abnormal block monitoring module, a block level response screening module, a security event analysis screening module and a remapping operation module.The present application determines abnormal blocks through security events, calculates risk matching values based on block level response parameter fingerprints of abnormal blocks and blank blocks, and eliminates high-risk blank blocks; a prediction state analysis time series dataset is constructed through a state response mapping model, and abnormal risks are judged by a security event analysis network, so as to improve the screening accuracy of the remapping candidate set and reduce the probability of the occurrence of security events again after remapping.

A purification mechanism for a vacuum system in an extruder includes a housing, a water supply tank, a water storage tank, and a connecting pipe. The housing contains a water seal layer. The top of the housing has an inlet pipe for connecting to the extruder's exhaust gas source and an exhaust pipe for connecting to the vacuum system. The downstream end of the inlet pipe extends downwards into the water seal layer. An overflow port, adapted to the height of the water seal layer, is located on the side wall of the housing. A filter frame is installed on the top of the water storage tank, below the overflow port. The water supply tank is located above the housing and connected to it via a float valve, the float of which floats on the water seal layer. The upstream end of the connecting pipe is connected to the bottom of the water storage tank, and the downstream end supplies water to the water supply tank. A water pump is installed on the connecting pipe. This invention has a simple structure, low operating cost, and can meet the need for removing impurities from extruder exhaust gas for extended periods.

This utility model provides an integrated VOCs adsorption and purification device for industrial use, belonging to the field of air purification technology. It includes a housing, from bottom to top, comprising a filter chamber, a buffer chamber, and an exhaust chamber. An air inlet pipe is located on the outside of the filter chamber, and a filter unit with a filter cavity is installed inside the filter chamber. The air inlet pipe connects to the filter cavity. An air inlet connecting to the filter chamber is located at the bottom of the buffer chamber, and an air outlet connecting to the exhaust chamber is located at the top of the buffer chamber. An exhaust pipe is located on the outside of the exhaust chamber, and an exhaust fan is installed inside the exhaust chamber. The air inlet of the exhaust fan is connected to the air outlet, and the exhaust outlet of the exhaust fan is connected to the exhaust pipe. The integrated VOCs adsorption and purification device for industrial use provided by this utility model has a compact structure, high purification efficiency, stable operation, and convenient maintenance, meeting the needs of air pollution control.

The utility model belongs to the technical field of gas pressure regulating equipment, and particularly discloses gas pressure regulating equipment for a laboratory, which comprises a main pipeline, branch pipelines are communicated with two ends of the main pipeline, and a pressure stabilizing component is arranged at one end of the main pipeline; the pressure stabilizing assembly comprises a pressure stabilizing cavity, the pressure stabilizing cavity is communicated with one end of the main pipeline, an annular base is arranged in the pressure stabilizing cavity, a spring is arranged at one end of the annular base, and a diaphragm is arranged at the end, away from the annular base, of the spring. When gas enters the pressure stabilizing cavity through the gas inlet of the main pipeline, gas pressure acts on the diaphragm, the diaphragm compresses the spring, the elastic force of the spring plays a buffering role, further rising of the gas pressure is limited, the through holes and the micropores formed in the diaphragm allow the gas to pass through, the through holes can ensure that the gas passes through the pressure stabilizing cavity at a relatively stable flow rate, and the gas pressure is reduced. And the stability of gas supply in the experiment process can be maintained.

The application discloses a kind of energy-saving control method of frequency conversion speed regulation and energy recovery cooperation rig plunger pump, and relates to industrial control technical field.The method includes: monitoring the current working power of rig plunger pump at first working frequency, when power exceeds preset first working power interval, first working power time sequence is collected;According to the time sequence data, the geological adaptability coefficient is calculated using the pre-trained geological adaptability analyzer;Determine whether the working frequency needs to be adjusted, and determine the second working frequency and the corresponding second working power interval accordingly;Based on the second working frequency, frequency converter, energy storage device and energy recovery device are cooperatively controlled.The application realizes intelligent perception and self-adaptive adjustment to formation change, and significantly improves the energy efficiency and operation economy of rig plunger pump under complex geological conditions through the collaborative management of energy.

The invention provides crystallizer casting powder for continuous casting of high-pulling-speed electrical steel and application of the crystallizer casting powder, and the crystallizer casting powder comprises the following components in percentage by mass: 6.0-9.5% of MnO, 4.5-8.0% of FeO, 28-33% of SiO2, 30-35% of CaO, 4-6% of Al2O3, 8-9.5% of Na2O and the balance of inevitable impurities. The content of FeO and MnO is strictly controlled, so that the FeO and MnO generate a synergistic effect in function, and the FeO and MnO form a synergistic effect in a slag film, so that the radiation heat transfer capability of the casting powder is enhanced, the characteristic of high heat output in a crystallizer under the condition of high pulling speed (greater than or equal to 5.5 m / min) is effectively adapted, and the stability of heat flow in a meniscus area is guaranteed. Moreover, the preparation method is simple and convenient to operate, and the production cost is reduced.

The invention discloses an evaporator control method and a control system thereof, and relates to the technical field of evaporation process control. According to the method, a material characteristic coefficient, a thermal efficiency coefficient and a heat transfer performance coefficient are obtained, and the thermal working condition adaptation degree is obtained by combining the pressure of an evaporation chamber and the vapor phase temperature; based on the current feeding flow, the adaptation degree and the heat transfer performance coefficient, the optimized feeding flow is obtained through a flow optimization model. According to the method, through multi-model collaborative analysis, dynamic optimization adjustment of the feeding flow of the evaporator is achieved, the operation stability, the thermal working condition adaptability and the overall heat transfer efficiency of the evaporation process are effectively improved, and the self-adaptive control capacity of an evaporation system is remarkably improved.

This invention discloses a method and system for scheduling heliostat fields in a multi-tower coupled solar thermal power plant. The method includes: S1. Determining whether each absorber tower is an over-limit tower and whether each receiving area on the absorber is an over-limit area; S2. If at least one over-limit area exists, determining target processing areas according to the degree of over-limit in each receiving area from high to low, using the absorber tower belonging to the target processing area as the target processing tower, and iteratively executing a first scheduling scheme until each receiving area and each target processing tower is within limits; if no over-limit areas exist, proceeding to step S3; S3. If at least one over-limit tower exists, determining target processing towers according to the degree of over-limit in each absorber tower from high to low, and iteratively executing a tower over-limit scheduling scheme until each absorber tower is within limits. Implementing the technical solution of this invention can coordinate tower-level and area-level dual constraints, intelligently, efficiently, and stably completing the scheduling of heliostat fields.

The invention discloses a three-dimensional modeling method and system for port whole-process management and control. The three-dimensional modeling method comprises the following steps: acquiring initial laser point cloud data, initial millimeter wave point cloud data, dust concentration and a visibility estimation value; performing dust point cloud elimination on the initial laser point cloud data and the initial millimeter wave point cloud data to obtain laser point cloud data and millimeter wave point cloud data; determining a laser point cloud weight and a millimeter wave point cloud weight; based on the laser point cloud weight and the millimeter wave point cloud weight, performing weighted fusion on the laser point cloud data and the millimeter wave point cloud data to obtain final point cloud data; and performing three-dimensional modeling based on the final point cloud data. According to the method, the point cloud belonging to the dust in the initial point cloud data is removed, only the required point cloud data is reserved, the influence caused by the dust is avoided, and a good data basis is provided for modeling from unloading of a car dumper and transportation of a belt conveyor to stockpiling of a storage yard in the whole-process operation.

This invention provides a method, apparatus, equipment, and medium for monitoring the entire lifecycle of pharmaceuticals. The method includes: loading pharmaceuticals to be stored into a transport device and establishing a binding relationship between the pharmaceuticals and the transport device; transporting the pharmaceuticals to be stored using the transport device and generating a flow record until successful storage; loading the corresponding pharmaceuticals into a storage device according to dispensing requirements and collecting pharmaceutical usage information from the storage device; when pharmaceuticals require low-temperature storage, controlling the internal temperature of the transport device and storage device within a preset range using a pre-installed refrigeration module and / or phase change cold storage material; and generating blockchain reporting information and a pharmaceutical flow traceability report based on the first temperature information, flow record, second temperature information, and pharmaceutical usage information for each pharmaceutical. This invention can provide reliable protection for pharmaceutical transportation and full-chain flow monitoring.

The utility model relates to a chemical equipment technical field, concretely relates to a device of stable reaction system gas pressure, include: reaction container, have reaction cavity, partial pressure container, have partial pressure cavity, the partial pressure cavity passes through first pipeline with reaction cavity intercommunication, liquid storage container, have liquid storage cavity, the liquid storage cavity passes through second pipeline with partial pressure cavity intercommunication, negative pressure air suction pipeline, one end with liquid storage cavity intercommunication, other end places in liquid storage cavity outside, wherein, the liquid storage cavity contains the sealed liquid, one end of second pipeline places in the liquid level below of sealed liquid. The present application has realized the stable gas pressure environment, makes the material reaction in reaction container more stable, and further guarantees the stability of whole reaction process. The present application can realize automatic exhaust according to the pressure change in reaction container, and the degree of automation is high, saves manpower cost.

The invention discloses a trajectory planning method for a high-speed unstacking cable-driven parallel robot. The trajectory planning method comprises the following steps: constructing a door-shaped grabbing path comprising a plurality of path points according to an unstacking task; generating an initial track meeting kinematics continuity based on the S-shaped acceleration curve and a quintic non-uniform rational B spline; a kinetic model of a rope driving system is established, track parameters serve as design variables, the optimization targets that the tension of all ropes is always larger than a preset minimum value in the movement process and the tension change rate is minimized are adopted, an optimization algorithm is adopted for conducting secondary optimization on a track, and a final track is obtained. The one-way stress characteristic of the rope is fully considered, the rope force fluctuation in the high-speed reciprocating motion is effectively restrained, it is guaranteed that the rope is continuously tensioned, and the motion stability and track precision in the unstacking process are improved.

The invention provides a method and a device for electrochemical carbon dioxide desorption and absorbent regeneration, and a carbon dioxide trapping method and a carbon dioxide trapping system for hydrogen production by coupling electrolysis of water. An apparatus for electrochemical carbon dioxide desorption and absorbent regeneration comprises an electrolytic cell comprising at least one electrolysis cell arranged in a stack, each electrolysis cell comprising an anode chamber, a cathode chamber and an intermediate chamber located between the anode chamber and the cathode chamber, the anode chamber and the middle chamber are separated by a cation exchange membrane, the middle chamber and the cathode chamber are separated by a gas isolation membrane, and the gas isolation membrane is configured to isolate gas but allow positive ions and water to pass through. Electrochemical carbon dioxide pregnant solution desorption and absorbent regeneration with high desorption rate and low desorption energy consumption are realized, and industrial application of high-concentration organic amine in carbon dioxide absorption, electrochemical desorption and regeneration processes becomes possible.

This invention relates to the fields of wearable medical devices and intelligent acoustics, and discloses an intelligent physiotherapy headphone based on biomagnetism and multimodal synergy, and its control system. The headphone includes a body with a multimodal physiotherapy module on its outer side for applying physical intervention to the user; a physiological sensing module on its outer side for real-time collection of the user's physiological data; and a control module connected to the multimodal physiotherapy module and the physiological sensing module, which acquires the physiological data collected by the physiological sensing module. The pulsed magnetic field generated by the biomagnetic generation module penetrates the ear tissue to stimulate nerves and acupoints, inducing the opening of cell ion channels, regulating brainwave rhythms with sound waves, and promoting local microcirculation through phototherapy. The synergy of these three factors creates a "multi-dimensional complementary" intervention effect, thereby improving the therapeutic effect of the headphone.

This invention discloses a station-level reactive power control method for a flexible DC transmission system, comprising: detecting and obtaining measured values ​​of voltage and current signals at the converter station's point of common coupling (PCC); comparing the reference value of the AC current reactive component at PCC with the q-axis component of the measured current signal, the difference being used as the reactive current deviation at PCC; obtaining the voltage compensation amount for the AC near-zone of the converter station after applying a correction factor of K times to the reactive current deviation; comparing the AC voltage reference value with the voltage compensation amount and the measured AC voltage value to obtain the reactive power outer loop deviation; obtaining the AC current reactive component reference value after PI regulation of the reactive power outer loop deviation; and using the AC current reactive component reference value as the input for inner loop control. This method can fully utilize the reactive power regulation capability of the flexible DC transmission system, reduce the frequency of fluctuations during reactive power compensation, and prevent drastic fluctuations caused by reactive power compensation.

This application provides a system and method for predicting the service status of tunnel structures based on a state-space model, relating to the field of structural health monitoring and intelligent early warning technology during tunnel operation. The method includes: an observation data preprocessing module for generating observation vectors; a state variable construction module for constructing implicit state vectors encompassing five states: deformation, stress, cracking, leakage, and environmental disturbance; a state transition modeling module for constructing a discrete-time state transition model; an observation mapping module for constructing an observation mapping model; a time-series prediction module for generating future observation vectors; an anomaly identification module for calculating a comprehensive anomaly score and anomaly type; and a service status assessment module for determining the service status of the tunnel structure. This application achieves dynamic prediction of structural service status and early anomaly identification, improving the accuracy of tunnel operation status prediction and operational decision-making capabilities.

The application discloses a high-precision three-dimensional vision system based on multi-camera time-sharing acquisition to improve acquisition frequency, and relates to the technical field of three-dimensional vision, comprising: a time-sharing synchronous control module, which is used for generating and outputting a group of trigger signals with precise time sequence offset; an image acquisition unit array, which is composed of at least three spatially distributed image acquisition units, each unit responds to the trigger signal, and sequentially opens its image sensor for image acquisition within a unified system acquisition cycle, and the acquisition windows of each unit do not overlap in time; a time-sharing acquisition cooperative scheduling module, which is used for dynamically solving and assigning the mutually exclusive acquisition window parameters of each image acquisition unit within the acquisition cycle according to scene motion speed, illumination change and system state. The application solves the problem that the existing three-dimensional vision system is difficult to consider high frequency and high precision use scene.

The embodiment of the invention belongs to the kitchen appliance technology, and provides cooking equipment and a temperature change curve display method. The cooking equipment comprises a display screen and the like, wherein the display screen is used for displaying a target temperature change curve; the target temperature change curve is used for representing the temperature change condition in the cooking cavity; when it is determined that the cooking process enters the temperature adjusting stage, the temperature in the cooking cavity is obtained through a temperature sensor; when the absolute value of the difference between the temperature in the cooking cavity and the target set temperature is larger than a preset threshold value, it is determined that the display temperature at the first sampling moment is the temperature in the cooking cavity; when the absolute value of the difference between the temperature in the cooking cavity and the target set temperature is smaller than the preset threshold value and larger than 0, the step length is adjusted based on the preset display temperature, and the display temperature at the second sampling moment is determined; based on the display temperature of the at least one sampling moment, determining and displaying a target temperature change curve through a display screen; the smoothness of the target temperature change curve can be improved.

The invention discloses a micro light emitting diode dynamic control system, control method and control device based on a multi-core heterogeneous chip. A task management and light field analysis unit TMU writes an analyzed light field descriptor set into an on-chip shared memory and sends a doorbell signal to a neural mimicry computing cluster NPU; a neural mimicry computing cluster NPU receives the light field descriptor from a task management and light field analysis unit TMU, reads historical data from a distributed shared memory, writes a processing result into the distributed shared memory, and triggers a high-precision driving computing cluster HPU and a distributed pixel driving network DPS; the high-precision driving calculation cluster HPU receives the instruction and the data, reads accurate parameters from the distributed shared memory and issues a final driving micro instruction to the distributed pixel driving network DPS; and the distributed pixel driving network DPS is used for receiving microinstructions and local parameters from the high-precision driving calculation cluster HPU. And inherent contradictions among power consumption, bandwidth, service life and display quality are solved.