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61results about How to "Obvious technical advantages" patented technology

Tunnel hard rock non-blasting excavation method

InactiveCN113586076AReduce the number of drilled holesOvercoming the blast effectTunnelsDrill holeEnvironmental geology
The invention provides a tunnel hard rock non-blasting excavation method. The tunnel hard rock non-blasting excavation method can realize efficient excavation of complete or relatively complete hard rock without adopting large excavation equipment such as a heading machine and the like , and is characterized by comprising the following steps of 1, drilling contour holes along a tunnel face contour line so as to determine a tunnel excavation range, and determining each drilling and grooving position according to the excavation range, then, forming and drilling a plurality of cavity expanding holes in the position close to the positions; 2, drilling a plurality of rows of guide holes between the contour holes and the cavity expanding holes; 3, drilling groove forming holes which are meshed and overlapped with each other at the determined drilling and grooving positions, and finally forming a groove cavity; 4, enabling the cavity expanding holes near the groove cavity to be subjected to impact crushing, and therefore expanding excavation is conducted on the groove cavity; 5, according to a certain excavation sequence, starting from the guide holes close to the expanded and excavated groove cavity, adopting a hydraulic breaking hammer for conducting impact breaking on the guide holes, so that excavation of the rock mass of a main body part is completed; and 6, conducting impact crushing on the contour holes.
Owner:WUHAN UNIV

Pedestrian motion track prediction method and system based on visual information, and storage medium

The invention relates to the technical field of intelligent traffic, and particularly discloses a pedestrian movement track prediction method and system based on visual information and a storage medium, and the method comprises the following steps: unmanned aerial vehicle data collection, coordinate projection transformation, coordinate sampling and track aggregation, sampling of pedestrian ground real coordinates after projection transformation, and tracking of the pedestrian movement track. Aggregating the coordinate data into trajectory information of a plurality of pedestrians; spatial visual information and time information are combined, a global interactive directed topological graph is constructed, then spatial feature and time feature extraction is performed, time sequence features of pedestrian motion are efficiently extracted through a multilayer convolution structure, and finally the future motion trail of pedestrians is predicted. Through the method, pedestrian motion in a complex scene can be predicted more efficiently, and the application effect of the model in pedestrian flow management and public safety planning is enhanced. The future movement condition is predicted by analyzing the historical trajectory of pedestrians, the pedestrian flow management is obviously optimized, and the safety level of public places is improved.
Owner:SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES

Collaborative relative positioning method and system for portable mobile terminal

PendingCN119535518AHigh precisionMeet the needs of high-precision relative positioningPosition fixationSatellite radio beaconingSimulationMulti source data
The invention discloses a portable mobile terminal collaborative relative positioning method and system, and the method comprises the steps: obtaining multi-source data, and carrying out the preprocessing of the multi-source data; wherein the multi-source data comprises an RTK differential value, a GNSS observed quantity and a Bluetooth observed quantity; gross error detection is carried out on the preprocessed multi-source data; constructing a fusion observation equation according to the RTK differential value after gross error detection, the GNSS observed quantity and the Bluetooth observed quantity, and obtaining an estimated value of a positioning parameter through a Kalman filtering algorithm according to the fusion observation equation; and carrying out relative position calculation according to the estimated value of the positioning parameter to obtain a relative positioning result of the portable mobile terminal. By adopting the technical scheme of the invention, the relative positioning with higher precision and moderate cost is realized on the portable mobile terminal so as to meet the high-precision relative positioning requirement under diversified application scenes.
Owner:BEIHANG UNIV

Method for realizing meat freshness prediction based on neural network in combination with quality index

The invention discloses a method for realizing meat freshness prediction based on a neural network in combination with quality indexes, which comprises the following steps: S1, data acquisition: acquiring quality indexes, freshness indexes, flavor indexes and biomarker indexes of protein and amine degradation of different freshness samples; s2, performing data processing to obtain a data set; s3, constructing a neural network model; and S4, predicting the freshness of the meat product by using the neural network model constructed in the step S3. According to the method, the prediction accuracy and efficiency are greatly improved. Traditional prediction often depends on sensory evaluation or chemical analysis, and the methods are time-consuming and labor-consuming and are easily influenced by human factors. Compared with the prior art, the neural network can automatically learn and extract key quality indexes in meat products, and establish a direct relation with freshness. Through the training of a large amount of data, the neural network model can accurately predict the freshness of the meat product, the prediction speed is extremely high, and the requirements of large-scale and rapid detection are met.
Owner:LINYI JINLUO WENRUI FOOD CO LTD +1

A negative curvature composite material grid structure and forming method thereof

The present invention discloses a method for forming a negative curvature composite mesh structure, wherein prepregs for forming negative curvature mesh ribs are laid in a mesh mold, and when the prepregs are laid, they are interrupted in the node area, and the ends of the prepregs are scattered and laid to the adjacent area of ​​the negative curvature mesh, and are laid alternately with the prepregs for forming end frames, thereby expanding the application scope of the mesh structure from a simple rotational structure to a quasi-rotational complex surface, breaking through the bridging and periodic limitations of the existing forming process, and realizing the automatic forming of negative curvature and non-periodic negative curvature mesh structures. The present invention also discloses a negative curvature composite mesh structure obtained by the forming method of the negative curvature composite mesh structure, which can be applied to the research and production of aerospace rocket body grid compartments, aircraft fuselages, wings, etc.
Owner:AEROSPACE RES INST OF MATERIAL & PROCESSING TECH

Resource application method of zeolite-based material with two-stage synergism of heavy metal adsorption and antibiotic catalytic degradation

The invention discloses a resource application method of a zeolite-based material with two-stage synergism of heavy metal adsorption and antibiotic catalytic degradation, and belongs to the field of wastewater treatment. The method comprises the following steps: (1) adding zeolite into wastewater containing heavy metal ions, uniformly mixing, oscillating, and adsorbing to remove the heavy metal ions in the wastewater; (2) sequentially washing, filtering and drying the zeolite adsorbed with the heavy metal ions to obtain a zeolite-based catalyst; and (3) adding the zeolite-based catalyst into the wastewater containing the antibiotics, adding an oxidant, uniformly mixing, and oscillating to realize catalytic degradation of the antibiotics in the wastewater. According to the invention, heavy metal ions are removed by using the cation exchange performance of zeolite, and the zeolite adsorbing heavy metals is directly used as a catalyst to degrade antibiotics, so that the resource utilization of heavy metal pollutants is realized. The method shows excellent heavy metal adsorption performance and antibiotic catalytic degradation effect, and has the advantages of wide application range, simple process and the like.
Owner:SHANDONG UNIV OF SCI & TECH

Flaky polypyrrole with adjustable conductivity, preparation method and application of flaky polypyrrole in terahertz absorption field

The invention discloses flaky polypyrrole with adjustable conductivity, a preparation method and application of the flaky polypyrrole in the field of terahertz absorption. The method comprises the following steps: dispersing sodium myristoyl glutamate in absolute ethyl alcohol, stirring and uniformly dispersing by utilizing ultrasonic waves, injecting a pyrrole monomer into a sodium myristoyl glutamate solution, continuously stirring and ultrasonically dispersing, then adding a certain amount of deionized water, and continuously stirring under an ice bath condition; and adding an oxidizing agent, and stirring for reaction to obtain the conductive polypyrrole with the sheet structure. According to the preparation method, pyrrole polymerization is induced to form polypyrrole with a sheet structure by utilizing a chemical effect between the sodium myristoyl glutamate and a pyrrole monomer, and the sodium myristoyl glutamate plays a role of a seed template. The prepared flaky polypyrrole can obtain good conductivity and has an excellent terahertz wave absorption characteristic.
Owner:YANGTZE DELTA REGION INST OF UNIV OF ELECTRONICS SCI & TECH OF CHINE (HUZHOU)

Concrete slip form construction method for fitting slopes of water inlets and water outlets of upper and lower reservoirs

The invention provides an upper and lower reservoir water inlet and outlet fitting slope concrete slip form construction method, and belongs to the technical field of building engineering. The method comprises the following steps: firstly, treating a foundation surface, measuring and setting out, and then manufacturing, mounting and fixing reinforcing steel bars; then template installation, fixation and template calibration are carried out; and then a winch system, a slip form and a chute are installed, and finally concrete pouring and curing are conducted. According to the method, innovative improvement is conducted on the manufacturing method of the steel bars and the sliding formwork, and on the basis, a brand-new installation method is designed around the sliding formwork and the chute. The structure is suitable for slope engineering of water inlets and water outlets of upper and lower reservoirs, has excellent structural strength, is convenient to construct and high in engineering efficiency and standardization level, and has outstanding technical advantages and good engineering performance.
Owner:STATE GRID XINYUAN GRP CO LTD +1

Rhynchium paraceum whole genome CRISPR / Cas9 knockout plasmid library as well as construction and application of whole genome CRISPR / Cas9 knockout plasmid library

PendingCN119465417Aeasy to operateReduce the difficulty of experimentsHydrolasesNucleotide librariesRepetitive SequencesGenomics
The invention discloses an efficient, simple and convenient whole genome CRISPR / Cas9 knockout plasmid library for erencigia parviflora as well as construction and application of the whole genome CRISPR / Cas9 knockout plasmid library, and belongs to the technical field of biology. On the basis of the Eriphaga parviflora T2T genome sequence, a bioinformatics tool is utilized to accurately predict a knockout target spot, double sgRNA is designed to improve the knockout accuracy and efficiency, and meanwhile, the off-target risk is reduced; the method comprises the following steps: synthesizing a double sgRNA-pool chip, amplifying, recovering, connecting a carrier, transforming and the like, so that the phytoneum parvum CRISPR-Cas9 knockout plasmid library which is simple and convenient to operate and high in throughput is successfully constructed. In the double sgRNA design process, advanced tools are adopted to improve the prediction accuracy; after the library is constructed, a strict quality inspection step is also included, so that the library quality is ensured. The invention not only provides a new way for the gene editing of the erencephalium leptosphaerium, but also provides reference for the gene editing of other multi-copy and high-repetitive-sequence biological genes, has obvious effects in solving the off-target problem and improving the editing efficiency and accuracy, and has important scientific significance and application value for the research of functional genomics.
Owner:SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI +1

Composite material pipeline capable of preventing hydrogen leakage

The invention provides a composite material pipeline capable of preventing hydrogen leakage, and belongs to the technical field of pipeline preparation. The composite material pipeline comprises an inner pipe layer, a composite gas barrier layer located on the outer surface of the inner pipe layer, a high-temperature-resistant copolymer layer located on the outer surface of the composite gas barrier layer, a reinforcing layer located on the outer surface of the high-temperature-resistant copolymer layer and a corrosion-resistant polymer protection layer located on the outer surface of the reinforcing layer. The composite gas barrier layer is of a multi-layer co-extrusion molding structure and comprises a blending modified PVDC layer, a blending modified EVOH layer and a blending modified PA layer from inside to outside. By means of the multi-layer composite structure, excellent material selection and an optimized production process, the composite material pipeline for preventing hydrogen leakage has the characteristics of excellent gas blocking performance, high strength, corrosion resistance, high temperature resistance, good flexibility and the like, and can effectively solve the problems of hydrogen embrittlement, leakage and corrosion of a traditional steel pipe in the hydrogen conveying process; the method has remarkable technical advantages and wide application prospects.
Owner:CANGZHOU MINGZHU PLASTIC

Safety platform suitable for being installed in air duct

A safety platform suitable for being installed in an air duct is characterized in that a manhole is formed in the bulkhead of the air duct, the air duct is arranged on one side of the manhole, an external deck is arranged on the other side of the manhole, a square grating plate is arranged on the side, located in the air duct, of the manhole, a manhole cover is fixed to the grating plate, and the manhole cover corresponds to the manhole in position and is matched with the manhole; the bottom of the grating plate is movably connected with the bulkhead through a shaft, shaft sleeves are fixed to the two ends of the shaft and fixed to the bulkhead, the grating plate is wider than the manhole, a seat ring is fixed to the side, located on the air duct, of the manhole and along the circumferential edge of the manhole, a circle of bolt holes are formed in the circumferential direction of the seat ring, and the bolt holes formed in the seat ring correspond to the bolt holes formed in the circumferential direction of the manhole. And bolts penetrate through the bolt holes from one side of the deck outside the manhole to fix the manhole cover on the manhole. The ventilation capacity is not interfered by the platform, the technology is advanced, the conception is ingenious, the manufacturing difficulty is low, the installation is simple, and the technical advantages are particularly obvious.
Owner:DALIAN SHIPBUILDING INDUSTRY CO LTD

A method and system for long-distance interconnection of a memory and a storage controller based on optical communication

ActiveCN120049962BFlexible interconnectionensure reliability
The present application relates to the field of computer storage and optical communication technology, and discloses a memory and storage controller long-distance interconnection method and system based on optical communication. The method encapsulates high-speed, medium-speed and low-speed signals between the memory and the storage controller, converts them into optical signals, and then transmits them over optical fibers. The receiving end converts the optical signals back into electrical signals through an optical module, and restores the original signals. The system includes a sending end and a receiving end, both of which contain special circuit modules and optical modules to complete signal encapsulation, conversion, transmission and recovery. The present application can effectively solve the problem of low-speed signals that cannot be directly transmitted over optical fibers, is suitable for various types and protocols of memories, and supports long-distance memory interconnection in cross-cabinet distributed storage and large-scale computing environments. The system has a long transmission distance, strong anti-interference ability, can reduce hardware complexity and cost, and improve the reliability and expandability of the system.
Owner:FUDAN UNIVERSITY

Differential horizontal rudder wheel assembly

The application relates to the technical field of intelligent mobile devices, in particular to a differential horizontal rudder wheel assembly which comprises a walking motor module, a steering motor module, a planetary reducer module and an optimized mechanical connection assembly. The walking motor and the steering motor are both servo motors, high-torque output and accurate control are realized by combining the planetary reducer; the mechanical structure is compact, the installation height is 340 mm, and the integration degree is high; the wheel body is made of polyurethane material, can bear 1500 kg and is suitable for complex working conditions; NPN normally open proximity switches are configured to realize closed-loop control. The application can provide high-precision and high-performance driving, is suitable for automatic devices such as intelligent logistics vehicles and AGV trolleys, meets the demand of complex working conditions and improves the operation reliability.
Owner:GUANGZHOU ZHONGLI INTELLIGENT EQUIP TECH CO LTD

Traditional Chinese medicine compound composition for treating dementia caused by turbid phlegm and clouding orifices as well as preparation method and use method of traditional Chinese medicine compound composition

The invention discloses a traditional Chinese medicine compound composition for treating phlegm clouding orifice type dementia and a preparation method and a using method thereof, and the traditional Chinese medicine compound composition is prepared from the following raw materials in parts by mass: 16-23 parts of bamboo juice, 11-17 parts of exocarpium citri rubrum, 6-12 parts of fructus alpiniae oxyphyllae, 12-18 parts of pheretima and 25-32 parts of caulis spatholobi. The traditional Chinese medicine is used for treating the turbid phlegm clouding orifice type dementia patient through a resuscitation inducing and phlegm reducing treatment method, the symptoms of the patient are obviously improved clinically, the compatibility is ingenious, the prescription is simple, only five medicines are adopted, the medicinal materials are easy to obtain and low in price, the requirement of a decoction technology is low, and the curative effect is obvious; the defects that western medicines are large in side effect and prone to generating drug resistance are overcome, and the advantages that traditional Chinese medicines are small in side effect and not prone to generating drug resistance are developed.
Owner:NANNING SEVENTH PEOPLES HOSPITAL (NANNING ACUPUNCTURE RESEARCH INSTITUTE NANNING INTEGRATED TRADITIONAL CHINESE & WESTERN MEDICINE HOSPITAL)

Method for reinforcing leg diagonal members of iron tower without power failure of power transmission line

The invention provides a method for reinforcing an iron tower leg diagonal member without power failure of a power transmission line. The method comprises the following steps: S1, positioning an area which is seriously corroded and needs to be reinforced on leg diagonal members of an iron tower part or an area which needs to be reinforced by an owner; s2, short angle steel (1) is attached to the back face of the uncorroded intact diagonal member area in the area needing to be reinforced; s3, the short angle steel is connected to the inclined material through a filling plate (2) consistent with the length direction of the inclined material; s4, the short angle steel is connected to the inclined material in a reinforcing mode through flitch plates (3) consistent with the width direction of the inclined material; s5, firstly applying a pulling force capable of sharing the load of the iron tower at the area needing to be reinforced to the iron tower; replacing the bolts at the bottom of the corroded inclined material one by one; the iron tower leg diagonal member can be reinforced without power failure, the component stress area of the iron tower leg diagonal member can be increased, and the force transmission path of the iron tower leg diagonal member is optimized.
Owner:FUJIAN YONGFU POWER ENG

Saline-alkali soil conditioner and improvement method

The invention belongs to the technical field of soil improvement, and particularly relates to a saline-alkali soil conditioner and an improvement method. The modifier is composed of SMT1-SMT5, wherein SMT1 is formed by compounding ammonium bicarbonate, ammonium carbonate and ammonia water according to the mass ratio of (4.5-5.5): (1.5-2.5): (0.8-1.2); sMT2 is prepared by compounding humic acid, fulvic acid, amino acid, chitin, water and an auxiliary material in a mass ratio of 2: 1: 1: 1: (5-6): (40-60); sMT3 is compounded by fungi, actinomycetes and water according to the mass ratio of 3: 1: (4-6); sMT4 is prepared by compounding cyanobacteria, cellulase, uricase, biochar and water according to the mass ratio of 3: 1: 1: 1: (3-5); sMT5 is compounded by gossypol, vegetable tannin and water according to the mass ratio of 3: 2: (4-6). According to the invention, SMT1-SMT5 synergistically improve the action effect of the modifier, and the modifier has a significant reduction effect on the pH, sodium ions and total salt content of saline-alkali soil.
Owner:SHAANXI JIAZHONG SHENGHE AGRICULTURAL TECHNOLOGY CO LTD

Photolithography principle demonstration device

This utility model discloses a photolithography principle demonstration device, comprising: an outer frame including a frame and multiple baffles; a lighting system including an ultraviolet lamp group and a lens group, the lens group being disposed below the ultraviolet lamp group; an imaging system including an optical lens and a photomask, the photomask being disposed between the optical lens and the lens group; a focusing system including a power module, a moving module, and a support platform, the support platform being connected to the moving module and located below the optical lens, the power module being connected to the moving module and capable of driving it to move up and down, thereby causing the support platform to move along the optical axis of the optical lens; a power supply module connected to the lighting system and the power module; and a control module connected to the lighting system, the power module, and the power supply module. This utility model is applicable to teaching demonstrations of photolithography processes.
Owner:VIA TECHNOLOGIES (CHINA) CO LTD

A cell sample viability detection kit and detection method based on mass spectrometry flow cytometry technology

This invention discloses a cell sample viability detection kit and method based on mass spectrometry flow cytometry. The cell sample viability detection kit based on mass spectrometry flow cytometry includes separately packaged solutions C, P, Pd, F, M, and D; solution C includes bovine serum albumin and phosphate buffer; solution P includes phosphate buffer; solution Pd includes palladium dichloride and double-distilled water. The effective component of palladium dichloride, palladium, has the following natural isotope abundances: isotope 102 The relative abundance of Pd was 1.02%. 104 Pd was 11.14%. 105 Pd is 22.33%. 106 Pd is 27.33%. 108 Pd was 26.46%. 110 Pd is 11.72%; Solution F includes paraformaldehyde and phosphate buffer; Solution M includes methanol; Solution D includes... 191 / 193 Ir, paraformaldehyde, and phosphate buffer. This invention's kit features high detection sensitivity, reduced detection interference, improved experimental efficiency, and reliable results.
Owner:PEKING UNIV

Acid rain monitoring and sampling equipment

The invention discloses acid rain monitoring and sampling equipment, and relates to the technical field of acid rain monitoring, the acid rain monitoring and sampling equipment comprises a barrel and a collecting pipe, the bottom of the barrel is provided with supporting legs, the barrel is internally provided with a collecting device, the barrel above the collecting device is provided with a filtering device, and the filtering device is used for filtering rainwater; the sealing cover mechanism is used for installing the collecting pipe and communicating the cylinder body with the collecting pipe; the temporary storage mechanism is used for receiving the rainwater collected by the collecting pipe and discharging the rainwater to the bottom of the barrel; the filtering mechanism is used for filtering impurities in the rainwater. The communicating state of the collecting pipe and the interior of the barrel can be adjusted by inserting and pulling out the collecting pipe, manual opening and closing are avoided, the overall working effect is improved, rainwater sundries can be filtered conveniently, meanwhile, filtered sundries can be cleaned conveniently, rainwater and sundries can be collected in a classified mode conveniently, and follow-up treatment is facilitated.
Owner:GUANGXI ZHUANG AUTONOMOUS REGION ECOLOGICAL ENVIRONMENT MONITORING CENT

Wireless network intelligent LED street lamp low-energy-consumption system for collecting road conditions

According to the intelligent LED street lamp hardware system based on the wireless network, the networking technology that LED lighting is matched with multi-sensor feedback, wireless ZigBee-k and the 5G technology is adopted, the remote operation and maintenance capacity is provided, and the problems that an existing street lamp system is too large in light source power consumption, low in system intelligent control degree and weak in maintenance capacity are effectively solved; an overall scheme of a street lamp management center, a monitoring substation and a street lamp low-energy-consumption control terminal is designed, control background software is based on a 5G network, street lamp low-energy-consumption control terminal hardware equipment is connected with an intelligent control substation through ZigBee-k, the intelligent control substation processes and accesses a background management system through a 5G terminal at the same time, real-time interaction of data is achieved, and the street lamp low-energy-consumption control terminal is connected with the intelligent control substation. A ZigBee-k short-distance wireless communication technology is adopted between the monitoring substation and each street lamp low-energy-consumption control terminal and between the monitoring substation and each street lamp low-energy-consumption control terminal and each street lamp terminal, new broadband communication 5G is greatly improved in the aspects of data rate and delay capacity, interaction and application are enhanced, and the requirements of an intelligent street lamp system are met.
Owner:杨道正

Chitosan-manganese oxide composite photocatalyst for activating PMS as well as preparation process and application of chitosan-manganese oxide composite photocatalyst

The invention discloses a preparation process of a chitosan-manganese oxide composite photocatalyst for activating PMS, which comprises the following steps: (1) adding chitosan into a mixed solution of ethanol and water, and carrying out ultrasonic treatment to obtain a uniform dispersion system marked as a solution A; (2) adding KOH into the solution A under a stirring condition, and stirring to obtain a solution which is marked as a solution B; (3) dissolving KMnO4 in water to obtain a solution which is marked as a solution C; and (4) adding the solution B into the solution C under stirring, carrying out a synthetic reaction by adopting an oil bath method or a hydrothermal method, cooling a product to room temperature, washing for multiple times to obtain a solid, drying overnight, and grinding the dried solid to obtain the photocatalyst. The photocatalyst which is low in cost, environmentally friendly and easy to prepare is combined with an advanced oxidation technology, PMS is activated through the photocatalyst, a system with strong oxidizing property is formed, and the photocatalyst has great application potential in degradation of dye pollutants in actual water.
Owner:GUANGXI UNIV FOR NATITIES

Stator power supply method for long-stator linear motor

The invention relates to the technical field of motors and control, in particular to a stator power supply method of a long stator linear motor, which effectively reduces partial voltage of winding leakage reactance by subdividing a segmented winding into a winding branch A and a winding branch B and combining'pre-switching-on 'and'delayed switching-off' of uncovered segments of a vehicle. In addition, through star-shaped connection of center end points of winding branches A and B and adoption of a double-path power supply for power supply, at least two adjacent branches are ensured to be supplied with power at any time. The output transformer is arranged for the single frequency converter, the two secondary sides of the transformer share the same primary side excitation transformer, and dynamic load balancing is achieved. For doubly-fed linear motor control, a power supply adopts a variable control mode. According to the method, under the technical condition that the step changing control frequency and the power supply interval are kept basically unchanged, under the set winding voltage withstanding level, stator power supply section division is more effectively regulated and controlled, higher rotor counter electromotive force can be overcome for operation, and then the maximum operation speed of a vehicle is increased.
Owner:TONGJI UNIV

Lighting effect configuration method, device, equipment, and medium

The present application relates to a lighting effect configuration method and apparatus, equipment, and medium, the method comprising: acquiring a target image, performing pixel clustering on the target image, obtaining multiple pixel clusters and a representative color of each pixel cluster, the representative color being the color of the central pixel of the corresponding pixel cluster; determining the area ratio of the total number of pixels of each pixel cluster relative to the total number of pixels of the target image; determining the data distance between each representative color and the average color of the target image to quantify the prominence of the representative color; selecting a portion of representative colors with a relatively high area ratio as the background color of the lighting effect, selecting a portion of representative colors with a relatively high prominence from the remaining representative colors as the accent colors of the lighting effect, and constructing a lighting effect color scheme based on the background color and the accent color. The present application applies a new idea to solve the problem of extracting the color scheme required for lighting effects from images, and can meet the diverse needs of lighting systems in modern smart home environments.
Owner:SHENZHEN INTELLIROCKS TECH CO LTD +1

Multilayer dynamic anti-counterfeiting film and preparation and application thereof

ActiveCN119261331AMature and stable performanceHigh degree of marketizationFlexible coversWrappers
The invention provides a multi-layer dynamic anti-counterfeiting film and preparation and application thereof, and relates to the field of packaging anti-counterfeiting, the multi-layer dynamic anti-counterfeiting film is composed of an upper layer, a lower layer and a middle layer, the upper layer and the lower layer both adopt polymer films with optical transparency, and the middle layer is a channel structure layer which is formed by curing a photosensitive polymer and has a communicated channel structure. Compared with traditional single label anti-counterfeiting, material anti-counterfeiting and digital anti-counterfeiting, the film introduces fluid into the anti-counterfeiting function, a dynamic composite anti-counterfeiting technology is formed, and the film has wide application prospects in the field of valuable commodity packaging.
Owner:JIANGYIN ZHONGDA FLEXIBLE PLASTIC NEW MATERIALS CO LTD

High-pressure kettle type propiolactone preparation and synthesis process

The invention belongs to the field of propiolactone preparation, and particularly relates to a method for preparing propiolactone in an autoclave mode and synthesizing propiolactone by using a semi-porphyrin-like chromium-cobalt bimetallic complex as a catalyst. In the preparation process, the propiolactone (BPL) is synthesized by increasing the pressure of the reactant carbon monoxide so as to reduce the dosage of the catalyst, so that the technical bottleneck is broken through, and remarkable technical advantages are achieved.
Owner:JIUZHOU PHARMACEUTICAL (HANGZHOU) CO LTD

Primary frequency modulation and AGC locking assessment optimization method

The invention provides a primary frequency modulation and AGC locking assessment optimization method, and belongs to the technical field of power station operation control. According to the method, a primary frequency modulation monitoring program is added in an LCU program, and when the primary frequency modulation action exceeds 3 seconds, a load set value tracks a load average value 10 seconds before the primary frequency modulation action. And if not more than 3 seconds, the load instruction tracks the secondary frequency modulation instruction. If the primary frequency modulation action is not enough for 60s after locking, the total locking time is 60s; and when the primary frequency modulation action exceeds 60s and the primary frequency modulation action signal is reset, the locking function of the primary frequency modulation on the AGC is immediately released. By applying the method, the reverse modulation condition of primary frequency modulation can be fully avoided, the control efficiency is improved, and the method has outstanding technical advantages and good operation performance.
Owner:安徽金寨抽水蓄能有限公司 +1

Eye movement anomaly detection method based on smartphone video and deep learning

An eye movement anomaly detection method based on smartphone videos and deep learning belongs to the technical field of smart medical detection, and comprises the following steps: S1, data collection; s2, video behavior coding: marking normal and abnormal eye movement by using DataVyu coding, extracting a plurality of eye movement event segments with the length of 2 seconds, and slowly playing the eye movement event segments frame by frame to ensure the accuracy of a timestamp; s3, feature extraction: extracting human face feature point coordinates in the video clip through a Mediape facial feature point detection model, retaining a key point movement track of an eye part, and obtaining an initial feature of eye movement; s4, constructing a data set: dividing the eye movement event segments into training, verification and test sets required by a deep learning model in a random splitting manner; s5, establishing a model; and S6, performing model evaluation. According to the method, data collection is efficient and convenient, behavior coding is accurate and controllable, feature extraction is efficient and accurate, and a model architecture is innovative and efficient.
Owner:DALIAN UNIV

Air-cooled gas engine waste gas cooling system and method

The invention relates to an air-air cooling gas engine exhaust gas cooling system which comprises an EGR cooling module, an exhaust gas inlet control module, an exhaust gas outlet control module, an air inlet control module and a control computer, one side of the EGR cooling module is communicated with the exhaust gas inlet control module, and the other side of the EGR cooling module is communicated with the exhaust gas outlet control module; the air inlet control module is communicated with an air inlet in the EGR cooling module; the waste gas inlet control module, the waste gas outlet control module and the air inlet control module are respectively coupled with the control computer through signal lines in an electric signal mode. The invention further relates to a gas engine waste gas cooling method. The EGR efficiency is improved, the system structure is simplified, and meanwhile the air inlet temperature is accurately controlled.
Owner:DONGFENG CUMMINS ENGINE

Safety monitoring system for mine hoist

The invention provides a safety monitoring system for a mine hoist. According to the system, a lifting system ground equipment three-dimensional model is established, an optical fiber vibration sensor, a strain sensor and a displacement sensor are configured, equipment state signals are collected through an industrial personal computer and a data optical fiber demodulator, data streams are formed and transmitted to a local storage server for calculation and analysis, and state characteristic parameters of the data streams are displayed in real time. According to the invention, through detection of characteristic parameters, combination of operation states and data analysis of operation state parameters, state characteristics are extracted from data, cross-correlation analysis and unit historical data are utilized, a fault tree model and a calculation model based on real-time monitoring data are established, and comparison calculation and analysis are carried out, so that operation state evaluation of current equipment is obtained. And early warning is carried out when abnormal conditions occur. According to the invention, the monitoring function is comprehensively improved, the monitoring sensitivity and comprehensiveness are improved, and the system has significant technical advantages and good operation performance.
Owner:SHANDONG KETONG ELECTRIC TECH CO LTD

Method and system for determining optimal proportion of long-afterglow self-luminous road marking paint

The invention discloses a method and a system for determining the optimal proportion of a long-afterglow self-luminous road marking coating, and the method comprises the steps: firstly, carrying out the combination under the multi-factor and multi-level conditions based on a uniform or orthogonal rule to obtain a proportion scheme which envelopes the full information of raw materials and has the minimum quantity; and testing the performances of the optical vision system and the road mechanical system of the coating in each scheme. And then two series of performance index weights are respectively calculated based on an entropy weight method, grey correlation analysis is coupled, and performance indexes with relatively large weight values and relatively good independence are preferably selected from each group to form a set of new coating performance evaluation index system. And finally, based on the new index system, analyzing by coupling with a multi-criterion sorting method, and carrying out comprehensive performance objective sorting on each matching scheme, so as to obtain the optimal matching of the long-afterglow self-luminous road marking paint. According to the invention, TOPSIS + GRA + VIKOR is innovatively coupled, the optimal ratio of the long-afterglow self-luminous road marking paint is scientifically obtained by a three-step design method, and a large amount of test and calculation work is saved.
Owner:SHANDONG JIAOTONG UNIV +2