Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

338results about How to "Efficient response" patented technology

Data security tracing method and system based on artificial intelligence

The invention provides a data security traceability method and system based on artificial intelligence, relates to the field of data security, and is used for solving the problems of relatively poor data security traceability accuracy and response delay in the prior art. The method comprises the following steps: updating a user behavior attention model, and carrying out multi-dimensional aggregation analysis on all data flow paths comprising abnormal nodes and abnormal edges; determining the path with the highest comprehensive score value in all the data flow paths as a target abnormal path; performing data security traceability analysis on the target abnormal path to obtain a traceability analysis result; and determining a chain creation rule, taking each data circulation event on the target abnormal path as a block in combination with the chain creation rule, connecting the data circulation events in series to form a traceability chain, and starting a corresponding safety response strategy according to a traceability analysis result, the safety response strategy being obtained through self-adaptive generation according to the traceability chain. According to the technical scheme provided by the invention, the accuracy of data security traceability is improved.
Owner:NINGBO ZIHE TECH CO LTD

Power equipment self-repairing surge protection system based on artificial intelligence

The invention relates to a power equipment self-repairing surge protection system based on artificial intelligence, and the system is characterized in that a surge detection module is connected between a live wire and a protection ground wire of power equipment, collects voltage and current data, and transmits the data to an artificial intelligence analysis unit; and the artificial intelligence analysis unit extracts the surge characteristic parameters, generates protection strategy parameters through a deep neural network, and controls the trigger thresholds of all levels of protection devices in the programmable protection circuit. The programmable protection circuit comprises a gas discharge tube capable of adjusting trigger voltage, a metal oxide varistor and a transient voltage suppressor diode, and is used for discharging surges with different energies step by step. The resettable fuse cuts off the circuit when the temperature exceeds a threshold value and recovers conduction after the temperature is reduced. And the controller receives and applies the protection strategy parameter output by the artificial intelligence analysis unit, and dynamically adjusts the trigger threshold value of the protection device, so that the response and protection performance of the system to the surge is improved, and the self-repairing and stable operation of the power equipment are realized.
Owner:XIANGYANG POWER SUPPLY COMPANY OF STATE GRID HUBEI ELECTRIC POWER +1

Service demand confirmation method and system based on cloud platform

The invention provides a business demand confirmation method and system based on a cloud platform, and relates to the technical field of cloud platforms, and the method comprises the steps: building a business process engine on the cloud platform according to a business scene and a business rule, carrying out the visual modeling of a business demand through the business process engine, and generating a standardized business demand model; deploying a demand verification service on the cloud platform, and through a formalized verification method of control flow analysis or data flow analysis and in combination with the business domain ontology model, performing automatic verification on the business demand logic represented in a formalized manner, and generating a demand verification report; and according to the demand verification report, judging whether the business demand logic has semantic contradictions or logic vulnerabilities, and when the semantic contradictions or logic vulnerabilities are detected, correcting the business demand logic which does not pass the verification in combination with the business domain ontology model. And deploying a demand collaboration service on the cloud platform, and publishing the corrected business demand logic in the form of a standardized interface for the collaboration party to subscribe.
Owner:CHANGZHOU RUIWU TECH CO LTD

Cross-platform equipment management method and system based on protocol converter

The invention relates to the technical field of data processing, and provides a cross-platform equipment management method and system based on a protocol converter, and the method comprises the steps: registering a unique identifier of target equipment in a first cloud platform, and connecting the corresponding target equipment in a second cloud platform; when the first cloud platform needs to obtain the real-time information of the target equipment, sending a unique identifier to the protocol converter for analysis, and finding the corresponding target equipment to obtain the real-time information; when the first cloud platform needs to control the target equipment, a control instruction containing the unique identifier is sent to the protocol converter, and the unique identifier and a control parameter are obtained; and finding a corresponding target device in the second cloud platform based on the unique identifier for control. Through deployment of the protocol converter, real-time information synchronization and instruction control between the first cloud platform and the second cloud platform are realized, protocol conversion and equipment positioning are supported, the management efficiency is improved, and the problems of multi-platform data synchronization and insufficient response are solved.
Owner:SHENZHEN SCODENO TECH CO LTD

Terahertz sensor array design optimization method based on metasurface enhancement

The invention relates to the technical field of terahertz, in particular to a terahertz sensor array design optimization method based on metasurface enhancement, which improves the performance of the terahertz sensor array in the aspects of sensitivity, resolution, frequency response and the like through multi-dimensional optimization design, obtains initial parameters of the array based on a physical model, and improves the accuracy of the design of the terahertz sensor array. By optimizing the structure and the arrangement mode of the metasurface unit and combining electromagnetic simulation analysis, the transmission efficiency and the phase regulation and control capability of terahertz waves are improved, the performance change of the sensor under high-temperature and high-stress conditions is evaluated through thermal effect and stress field simulation, the stability and the reliability of the sensor in a complex environment are ensured, and the application range of the sensor is widened. Based on laboratory testing, data of key performance indexes such as sensitivity, resolution and response time are fed back, design parameters are adjusted, and iterative optimization is completed; according to the invention, through combination of multi-dimensional simulation and experimental feedback, the performance and environmental adaptability of the terahertz sensor array are significantly improved, and the terahertz sensor array is suitable for wide terahertz detection application.
Owner:JIAXING UNIV

Unmanned vehicle formation dynamic control method and system

The invention discloses an unmanned vehicle formation dynamic control method and system. The method comprises the following steps: collecting perception information of a current environment through a sensor and communication equipment; analyzing and determining the formation with the highest efficiency under the current condition according to the collected sensing information; establishing a master-vehicle and slave-vehicle formation model, and enabling each unmanned vehicle to move according to a kinematical equation of the master-vehicle and slave-vehicle formation model; an error dynamic model is established, and an error control method is designed, so that the tracking error between the slave vehicle and the master vehicle is converged to a minimum neighborhood; when a task vehicle needs to drive away from the formation, the task vehicle predicts the tracks of other vehicles and performs obstacle avoidance driving based on a dynamic prediction obstacle avoidance control method; and performing formation switching according to the current environment conditions and task requirements. According to the invention, the formation generation and maintenance capability of the unmanned vehicle formation can be improved in a complex environment, the formation obstacle avoidance strategy is optimized, and the balance between the formation and an independent task is realized.
Owner:BEIJING JIESHENGTONGDA INFORMATION TECH CO LTD

Driving and braking control method for front and rear axle dual-motor driving pure electric commercial vehicle

The invention relates to the technical field of new energy vehicles, in particular to a driving and braking control method for a front and rear axle dual-motor driving pure electric commercial vehicle. Comprising the following steps: acquiring historical working condition data of the dual-motor pure electric vehicle; establishing a vehicle speed prediction model; setting network parameters of the vehicle speed prediction model, and training the prediction model; adjusting network parameters according to the predicted precision to obtain a vehicle speed prediction model; establishing a dual-motor pure electric vehicle model; establishing an improved DDPG proxy model based on a truncated triple Q network and learning rate scheduling; setting a state, an action and a reward function of the improved DDPG proxy model; training a control energy management model based on the training data set; validating the energy management model using the data set; and the trained model is embedded into a whole vehicle controller, and according to the current vehicle speed, the battery electric quantity SOC and the battery health state SOH, the distribution coefficient of the torque of the front axle and the rear axle of the vehicle is calculated in real time to control the operation of the vehicle.
Owner:NANJING HENGTIAN LINGRUI AUTOMOBILE CO LTD

Biomass material carbonization and activation integrated device

InactiveCN119284904AGuaranteed activation effectTake advantage ofCarbon compoundsBiofuelsThermodynamicsFlue gas
The invention relates to the field of carbonization and activation devices, in particular to a biomass material carbonization and activation integrated device. The carbonization device comprises a carbonization bin, a carbonization piece, a material conveying piece, a treatment assembly, an activation bin, a first activation piece, a second activation piece and a combustion box. The carbonization piece is arranged between the biomass inlet and the biomass outlet of the carbonization bin; the material conveying piece controls the biomass to move; the processing assembly is located on the material conveying piece. Multiple groups of activating pieces I are arranged along the inner wall of the upper end of the activating bin; the activation part II is positioned inside the lower end of the activation bin; the combustion box is located outside the lower end of the activation bin. According to the biomass carbonization and activation device, biomass is carbonized in the horizontal moving process, physical activation is conducted in the vertical moving process, finally chemical activation is completed in cooperation with the mixing action and flue gas flowing, the whole biomass carbonization and activation device is integrated, the process is dynamic and coherent, reaction is efficient, and energy conservation and environmental protection are achieved.
Owner:ZHANGJIAGANG ZHEHUA SCI & TECH CO LTD

Large-scene multi-target on-site holographic intelligent monitoring comprehensive management system

The invention relates to the technical field of intelligent monitoring, in particular to a large-scene multi-target on-site holographic intelligent monitoring comprehensive management system, which comprises a device determination module, a plurality of initial monitoring devices and a control module, the model construction module obtains and analyzes a plurality of initial monitoring video data, and constructs an initial monitoring model; the grade determination module determines an initial number of preset monitoring targets and determines an initial importance grade; the anomaly recognition module determines an initial monitoring frequency, performs monitoring based on the initial monitoring frequency, and recognizes an initial anomaly event based on an initial monitoring result; the degree analysis module analyzes the initial abnormal event and gives an alarm based on the comparison result of the initial severity, or adjusts the initial monitoring frequency, monitors the sub-region corresponding to the abnormal event in real time based on the adjusted monitoring frequency, analyzes the real-time monitoring result, gives an alarm based on the analysis result, or continues monitoring. According to the invention, the comprehensive accuracy of monitoring is improved.
Owner:INNER MONGOLIA NEUSOFT INFORMATION TECHNOLOGY CO LTD

AI-driven information security big data supervision method and system

The invention discloses an AI-driven information security big data supervision method and system, and relates to the technical field of data supervision. Comprising the following steps: receiving data streams from different sources in real time, preprocessing the data streams, performing multi-dimensional dynamic label processing, and storing the data streams in different nodes in a distributed manner; calling an adaptive AI model for the distributed storage data in real time, and automatically adjusting parameters of the adaptive AI model based on the traffic change condition; when the adaptive AI model monitors an abnormal data stream, performing secondary intelligent grading analysis, and judging the type, the source and the potential threat level of the abnormality; when a high-risk anomaly is detected, an event-driven response mechanism is automatically triggered; and an event response result and a processing state are fed back to the adaptive AI model, and learning parameters and decision logic of the model are optimized. Under the support of multi-dimensional dynamic label processing, mass data streams can be flexibly and efficiently processed.
Owner:BEIJING GUANGUAN TECHNOLOGY CO LTD

Reaction device for preparing organic compound

The invention relates to the technical field of reaction kettles, and particularly discloses a reaction device for preparing organic compounds, which comprises a reaction kettle, a stirring shaft coaxially arranged with the reaction kettle, a filter screen arranged at the bottom of the stirring shaft and attached to the inner wall of the reaction kettle, and a lifting part arranged at the bottom of the reaction kettle and used for driving the filter screen to lift, telescopic rods are uniformly distributed in the circumferential direction of the stirring shaft, mounting blocks are fixedly arranged at the bottoms of the telescopic rods, are spirally distributed on the periphery of the stirring shaft and are attached to the outer wall of the stirring shaft, fan-shaped catalyst nets are rotationally arranged on the mounting blocks, transmission parts I are mounted between the stirring shaft and the telescopic rods, and when the stirring shaft rotates, the telescopic rods synchronously rotate; a transmission part II is mounted between the movable end of the telescopic rod and the catalyst net; the catalyst net is spirally arranged on the periphery of the stirring shaft, so that reaction liquid can be in full contact with a catalyst during reaction, and the catalyst net rises after the reaction is completed so as to be cleaned.
Owner:SHAANXI DIDU PHARM CHEM CO LTD

Carbonization system for recycling coarse aggregate and transmission device of carbonization system

The invention relates to the technical field of carbonization of recycled coarse aggregates, and discloses a carbonization system for recycled coarse aggregates and a transmission device thereof.The carbonization system comprises a carbonization device shell, a carbon dioxide solution tank is installed at the bottom of the interior of the carbonization device shell, and a rotatable pouring and soaking cylinder is arranged in the carbon dioxide solution tank; two movable cover plates for sealing are symmetrically mounted at the top of the carbon dioxide solution tank, an opening and closing transmission mechanism in transmission connection with the two cover plates is mounted between one end of the carbon dioxide solution tank and the carbonization device shell, and a mixing and discharging transmission mechanism is mounted at the upper part of one end in the carbonization device shell; the mixing and discharging transmission mechanism is in transmission connection with the pouring and soaking cylinder; the recycled coarse aggregate carbonization device has a structure with a stirring and discharging integrated function, and meanwhile, the recycled coarse aggregate carbonization device has an automatic adjusting sealing structure, so that the efficiency and the quality of recycled coarse aggregate carbonization processing are effectively improved.
Owner:ZHENJIANG JIANKE CONSTR TECH CO LTD

Intelligent molecular diagnosis and analysis method, device and equipment and storage medium

The invention relates to the field of DNA amplification, in particular to an intelligent molecular diagnosis and analysis method, device and equipment and a storage medium. The method comprises the following steps: detecting multi-dimensional environmental parameters of the DNA amplification kit in real time based on a multi-dimensional sensing node; performing spatial topology layout mining and environment amplification perception fitting on the multi-dimensional environment parameters, and constructing a real-time amplification perception model; identifying a DNA amplification sample; performing layered temperature control analysis on the DNA amplification sample, and performing dynamic amplification constant-temperature control on the real-time amplification perception model, so as to construct a plurality of dynamic constant-temperature amplification models; carrying out regional DNA reaction degree evaluation on the plurality of dynamic isothermal amplification models one by one, and then carrying out regional flow velocity dynamic regulation, so as to construct a dynamic amplification reaction flow velocity regulation strategy; real-time amplification control is performed based on a dynamic amplification reaction flow rate adjustment strategy to generate a filter optimized amplification reaction signal. According to the method, the accuracy of molecular diagnosis analysis is improved through efficient and convenient DNA isothermal amplification.
Owner:SHENZHEN EZASSAY BIOTECH LTD

NeRF modeling method fusing time dimension and hierarchical sampling strategy

The invention discloses a NeRF modeling method fusing a time dimension and a hierarchical sampling strategy. The NeRF modeling method comprises the following steps: constructing a data set; sampling M coarse sampling points for each ray of the RGB image in the data set; position coding is carried out on the coarse sampling points, and then the volume density and color of the coarse sampling points are output by the MLP; calculating the weight of the coarse sampling point, and accumulating the weight; n fine sampling points are generated based on the accumulated weight, and the volume density, the color, the opacity and the accumulated transmittance of the fine sampling points are calculated; calculating the color of the ray by combining the coarse sampling point and the fine sampling point; constructing a loss function L of the MLP; and training the MLP to obtain a three-dimensional scene modeling model. According to the method, the rendering efficiency is improved through a hierarchical sampling strategy, an explicit space structure is fused during coding to enhance the capturing capability of the model for complex geometry, and time coding is added to efficiently cope with dynamic changes in a scene, so that better performance and efficiency are achieved when large-scale, complex and dynamic three-dimensional scenes are processed.
Owner:SHENZHEN SENSING DATA TECH CO LTD +1

Intelligent parking lot vehicle monitoring system

The invention discloses an intelligent parking lot vehicle monitoring system, and belongs to the technical field of parking lot vehicle management. Comprising a vehicle end, and the vehicle end is connected with an intelligent monitoring platform. The vehicle end comprises a vehicle running state information acquisition module, an AI intelligent early warning module and an active braking module; the intelligent monitoring platform comprises a real-time monitoring module, a data processing module and a remote control module. Through the Internet of Things, big data and AI technologies, all-weather monitoring, data analysis and abnormal early warning of the vehicle are realized; through the active brake module and the passive infrared detector, the safety performance of the equipment in emergency is enhanced, and automatic deceleration or emergency stop can be realized to avoid accidents; the active braking module assists operators, the influence of the environment and dense personnel on operation is reduced, and the operation safety and stability are improved. And meanwhile, intelligent scheduling is supported, vehicle operation is optimized, and the empty driving rate is reduced. A mobile terminal management function enables a manager to master the dynamic state of a field at any time and efficiently deal with emergencies.
Owner:CHENGDU SPECIAL EQUIP INSPECTION INST

True value mining method for multi-source unstructured text service in meta-universe crowdsourcing environment

The invention discloses a truth value mining method for a multi-source unstructured text service in a meta-universe crowdsourcing environment, and provides a solution of three stages, namely a semantic preprocessing stage, a high-dimensional content vector representation of a crowdsourcing answer is constructed, and clustering is carried out; in the truth value optimization and feature generation stage, the optimized truth value mining model is used for evaluating the work quality of crowdsourcing workers, and features are dynamically generated. And a task clustering and class cluster mapping stage: clustering the tasks with generated features, accurately estimating the real class of each task, and finally determining a true value. According to the method, the accuracy and efficiency of true value mining are improved, and the applicability of the method in a complex unstructured data environment is expanded. By integrating the multi-source sensing data in the meta-universe crowdsourcing environment, the intelligent service meeting the user requirements can be accurately pushed, and the service quality and the user experience of the meta-universe are improved.
Owner:SOUTHEAST UNIV

Multi-channel PCM data real-time acquisition and output system and method based on ALSA framework

The invention relates to a multichannel PCM data real-time acquisition and output system and method based on an ALSA framework, and the system comprises a multichannel analog quantity input unit and a multichannel analog quantity output unit, and also comprises a system configuration unit, a memory resource unit, an AD acquisition conversion unit, an audio routing unit, a DA output conversion unit and an ALSA DMA cache region distribution unit. The ALSA DMA cache region allocation unit is used for building a PCM data path of a user space and a kernel space and providing an annular cache region queue for storing DMA resource descriptors, and the audio routing unit obtains the returned DMA resource descriptors from the ALSA DMA cache region allocation unit and allocates the DMA resource descriptors to an output end to complete synchronous multichannel input and output of PCM data. According to the system provided by the invention, the ALSA DMA buffer area distribution unit is adopted, so that the DMA configuration process is simplified, and the data transmission efficiency is improved.
Owner:TRONLONG

Simulation method and system for surface charge of basin-type insulator, terminal and medium

The invention relates to the technical field of electrical performance research of insulating materials, and discloses a simulation method and system for surface charges of a basin-type insulator, a terminal and a medium, and the method comprises the steps: building a simulation model for the surface charges of the basin-type insulator through obtaining dark current data of a gas side; the gas side dark current data are set as boundary conditions of a basin-type insulator surface charge simulation model physical field, surface charge distribution characteristic calculation under any gas and gas pressure is achieved, and the method is not limited by the problem that diffusion coefficients, recombination coefficients, ion pair generation rates and migration coefficient parameters of positive and negative ions of existing gas are limited; the physical field calculation model is solved according to boundary conditions in the divided adaptive grid division, charge distribution and electric field distribution characteristics are obtained, basin-type insulator surface charge simulation is completed, the calculation efficiency is improved, and the accuracy of simulation of the surface charge distribution characteristics and spatio-temporal evolution laws of key insulators in direct-current GIS / GIL is improved.
Owner:CHINA SOUTHERN POWER GRID COMPANY

Railway strip-shaped long-distance unmanned aerial vehicle sensing countering system and method

The invention provides a strip-shaped long-distance unmanned aerial vehicle sensing countering system and method along a railway, and relates to the technical field of rail traffic safety. The system comprises an unmanned aerial vehicle detection device arranged at a key node along a railway and used for detecting an unmanned aerial vehicle; the unmanned aerial vehicle countering device transmits a controllable interference signal to interfere with the unmanned aerial vehicle; the signal receiving and directional transmitting equipment is used for receiving, amplifying and redirectionally transmitting the interference signal or the radio signal transmitted by the unmanned aerial vehicle; the rear-end intelligent management and control platform is used for receiving the signal information, analyzing the threat level in real time, selecting a countering strategy and implementing directional interference through equipment; the method comprises the steps of equipment deployment, detection and early warning, data analysis, instruction issuing, signal emission and interference, and response and dynamic adjustment. According to the invention, the problems of insufficient coverage, poor identification precision and single countering means in long-distance and strip-shaped scenes along the railway in the prior art can be solved, and real-time sensing and dynamic countering of the unmanned aerial vehicle are realized.
Owner:CRSC INST OF SMART CITY RES &DESIGN

Tunnel construction safety risk management intelligent decision support platform

The invention discloses an intelligent decision support platform for tunnel construction safety risk management, which belongs to the field of tunnel construction risk management and mainly comprises a data collection module, a risk analysis module, a selection decision module, a risk feedback module and the like. Firstly, a data collection module collects relevant data including geological data, construction parameters, engineering environment and the like by monitoring parameters of a shield tunneling machine in real time; and then, the risk analysis module processes and analyzes the data based on an artificial intelligence algorithm, and generates risk early warning identification information at the same time. And in the selection decision module, decision analysis is carried out according to the early warning identification information, and a most reasonable risk disposal scheme is given. And the risk feedback module feeds back a processing result to the system to realize loop optimization. The system collects and analyzes construction data in real time, provides an effective decision-making basis, facilitates safe and effective management of tunnel construction, and improves the safety and efficiency of constructional engineering.
Owner:CHINA RAILWAY 15TH BUREAU GROUP CORPORATION LIMITED +3

Underwater acoustic communication equalization method based on leakage normalized least mean square algorithm

The invention discloses an underwater acoustic communication equalization method based on a leakage normalized least mean square algorithm, and belongs to the technical field of underwater acoustic communication. The method comprises the following steps: acquiring a baseband sampling signal; initializing a weight vector w = 0, an instantaneous power vector p = 0 and an error vector e = 0; and taking the baseband sampling signal x as an input signal, taking the training sequence as an expected signal d, and carrying out gradual leakage updating on the weight of a filter through iterative calculation based on a leakage factor control strategy so as to complete self-adaptive adjustment in a signal equalization process. According to the method, the leakage factor control strategy is introduced, and the adaptive step parameter design is adopted, so that the stability and the convergence speed of the weight of the filter are effectively balanced, finally, the received signal is accurately balanced, and the robustness and the signal quality of the underwater acoustic communication system are remarkably improved.
Owner:JIMEI UNIV

Industrial controller vulnerability hot repair method and system based on memory forensics

The invention discloses an industrial controller vulnerability hot repair method and system based on memory forensics, and the method comprises the steps: obtaining the memory and firmware information of an industrial controller in real time through a firmware extraction module, providing data support for the subsequent vulnerability analysis, and maintaining the stable operation of the system; vulnerabilities and abnormities in the system are accurately searched through memory analysis and behavior detection by a vulnerability positioning module, and rapid and real-time security response is provided; and the vulnerability repair module performs vulnerability repair on the basis of a vulnerability positioning result by utilizing a hot repair technology under the condition of not interrupting the operation of the control system, so that the security and high availability of the industrial controller are ensured. The firmware extraction module, the vulnerability positioning module and the vulnerability repair module cooperate with one another to form a closed-loop detection, analysis and repair system so as to ensure that the industrial controller can efficiently respond and maintain continuous and stable operation when facing security threats.
Owner:北京中关村实验室

Energy storage networking control method, apparatus and device, and storage medium

The invention relates to an energy storage networking control method and device, equipment and a storage medium, and the method comprises the following steps: carrying out the real-time data collection of a target power grid through an intelligent sensor, and obtaining the collection data of the power grid; predicting the power grid acquisition data through a preset big data analysis technology to obtain a power grid operation trend; performing energy state evaluation on the target energy storage system to obtain the available capacity of the target energy storage system; formulating a scheduling control plan based on the available capacity and the power grid operation trend; wherein the scheduling control plan is used for scheduling and controlling the target power grid or the target energy storage system so as to keep the frequency of the target power grid stable, and the technical problems of how to effectively integrate the energy storage system into an existing power network and how to ensure that the energy storage system can stably support the frequency of the power grid and other key performance indexes are solved.
Owner:SHENZHEN YILANCO ELECTRIC CO LTD

Ni-CoO / SiO2 aerogel as well as preparation method and application thereof

The invention belongs to the technical field of catalysts, and provides Ni-CoO / SiO2 aerogel as well as a preparation method and application thereof. The method comprises the following steps: mixing water, tetraethoxysilane, ethanol and a hydrochloric acid solution, and hydrolyzing to obtain silica sol; the preparation method comprises the following steps: mixing silica sol, a nickel salt solution, a cobalt salt solution and a hydrochloric acid solution, and sequentially carrying out ultrasonic treatment, water bath and freeze drying to obtain SiO2 aerogel containing NiO and CoO; the preparation method comprises the following steps: in a reducing atmosphere, carrying out reduction reaction on SiO2 aerogel containing NiO and CoO to obtain the Ni-CoO / SiO2 aerogel. The Ni-CoO / SiO2 aerogel can realize hydrogen production through water photolysis of CoO, Ni promotes the hydrodeoxygenation process of guaiacol, meanwhile, the greenhouse effect of the porous structure of the SiO2 aerogel provides a high-temperature environment for the reaction process, the reaction is promoted to be continuously and positively carried out, and efficient conversion from guaiacol to phenol under the mild reaction condition is realized.
Owner:SHENYANG AEROSPACE UNIVERSITY

Noise reduction processing method and device, vehicle and storage medium

The invention discloses a noise reduction processing method and device, a vehicle and a storage medium, and relates to the technical field of intelligent cabins, and the method comprises the steps: carrying out the recognition based on an error signal and an accelerometer signal of the vehicle, and obtaining a noise scene where the vehicle is located; decomposing the accelerometer signal into a plurality of sub-band signals which are not overlapped with one another; for each sub-band signal, determining a noise reduction processing parameter corresponding to each sub-band signal based on the energy analysis and noise scene of the sub-band signal; based on the noise reduction processing parameter corresponding to each sub-band signal, performing adaptive filtering on each sub-band signal in combination with the error signal to obtain a noise reduction signal corresponding to each sub-band signal; and carrying out fusion reconstruction on the noise reduction signals corresponding to the plurality of sub-band signals to obtain a full-band noise reduction signal. According to the invention, adaptive filtering and noise reduction are carried out on each sub-band signal based on the noise scene where the sub-band signal is located, efficient division and treatment and response can be carried out on complex and multi-spectral structure noise, the noise reduction effect is improved, and the vehicle use experience feeling of a user is further improved.
Owner:XIAOMI EV TECH CO LTD

Simple automatic water spraying fire extinguishing system

The utility model provides a simple automatic water spraying fire extinguishing system which comprises a water supply module, a connecting water pipe, a pressure gauge, a pressure pump assembly, a water flow indicator, a main control system, a spraying module, a smoke detector and an alarm device, and the water supply module is sequentially connected with the pressure gauge, the pressure pump assembly, the water flow indicator and the spraying module through the connecting water pipe. The water flow indicator, the smoke detector, the alarm device, the pressure pump assembly, the spraying module and the main control system are in signal connection, the water flow indicator installed on the connecting water pipe is used for detecting whether water flow impact exists in the connecting water pipe or not and sending an electric signal to the main control system, and the main control system is used for controlling the alarm device and the pressure pump assembly to operate. According to the utility model, the problem that fire rescue and escape in villages in cities and villages are difficult is solved, and the simple automatic water-spraying fire extinguishing system can also effectively control the spread of fire, so that more time is won for people to escape and rescue.
Owner:GUANGZHOU TAICHANG IND

Emergency communication method combining short-distance satellite flash and wireless broadcast

The invention discloses an emergency communication method combining short-distance satellite flash and wireless broadcast, and relates to the technical field of wireless communication. Comprising the following steps: step 1, based on an emergency environment, issuing emergency information through radio broadcasting; 2, converting the emergency message received in real time into text information by using an automatic voice recognition model; 3, performing digital signature on the processed text information; 4, the digital signature is verified, and the text information is encrypted and transmitted; 5, decrypting the received text information by using a natural language processing method, identifying semantics in the text information, and extracting key information; 6, the processed text information is sent to related emergency response personnel and equipment through wireless short-distance star flash; and 7, monitoring the progress of the emergency response in real time by using wireless short-distance star flash, and receiving feedback information.
Owner:INSPUR COMM TECH CO LTD

Raymond mill operation grading prediction and evaluation method

A Raymond mill operation grading prediction and evaluation method aims at solving the problem that related processing modes capable of correspondingly evaluating grading efficiency and whole machine pressure loss of a Raymond mill do not exist at present, the prediction and evaluation method in the invention is based on an inlet wind speed D, a main shaft rotating speed E and a grader rotating speed F, and through combination of a Box-Behnken method, a DPM model and an MRF multi-coordinate reference system, the grading efficiency and the whole machine pressure loss of the Raymond mill can be evaluated, and the grading efficiency and the whole machine pressure loss of the Raymond mill can be evaluated. And performing response surface simulation analysis by using the R-R distributed discrete phase, and calculating to obtain the maximum value of the grading efficiency M and the minimum value of the complete machine pressure loss N, and completing the contrastive analysis process with the actually acquired data according to the maximum value of the grading efficiency M and the minimum value of the complete machine pressure loss N.
Owner:GUILIN UNIV OF ELECTRONIC TECH +1