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201 results about "Technological system" patented technology

Emission prediction and optimization method for digital twin-driven marine diesel engine

The invention discloses a digital twin-driven marine diesel engine emission prediction and optimization method, which comprises the following steps: (1) constructing a comprehensive performance mechanism model, and obtaining twin data through representation and verification of the comprehensive performance mechanism model; (2) designing a calibration module based on a deep learning algorithm, taking real data and twin data as input, and outputting calibrated data through model training; (3) constructing a combustion stage mechanism module, and optimizing a gas inlet pipeline structure and improving mixing uniformity through simulation of a combustion mechanism model on oil-gas mixing characteristics and combustion efficiency; (4) constructing a data driving model, and fitting a relationship between the turbulent energy index and emission; and (5) taking the constructed comprehensive performance mechanism model, the calibration module, the combustion stage mechanism model and the data driving model fusion technology system as a fitness function, searching an optimal oil injection control parameter based on a particle swarm optimization algorithm, and formulating an optimization control strategy adapting to different working conditions.
Owner:QINGDAO UNIV OF SCI & TECH +1

Improved inter-ERP (Enterprise Resource Planning) system data migration and synchronization method and system

The invention relates to the technical field of data processing, and particularly discloses an improved inter-ERP (Enterprise Resource Planning) system data migration and synchronization method, which comprises the following steps of S1, metadata acquisition and preprocessing; s2, field intelligent matching; S3, machine learning recommendation; s4, mapping confirmation and feedback; s5, converting rule configuration; s6, carrying out total migration; s7, performing increment synchronization; and S8, monitoring and alarming: counting delay, throughput and failure rate of increment synchronization in real time, and automatically sending an alarm notification when an abnormal threshold is triggered. According to the method, a complete technical system which is infinitely infinitely and covers the whole migration and synchronous life cycle is constructed from metadata acquisition to intelligent mapping, rule driving and full / incremental ETL (Extract Transform Load), and then to monitoring alarm and rollback management; the method is suitable for efficient, reliable and extensible data migration and synchronization between heterogeneous ERP systems, and provides solid support for enterprise informatization upgrading, system splitting / merging and big data analysis enabling.
Owner:上海美武信息技术有限公司

Construction method of variable-curvature super-depth fusiform skylight in steel structure

The invention relates to the technical field of building construction, in particular to a construction method of a variable-curvature super-depth fusiform skylight in a steel structure, and solves the construction problem of a complex space curved surface through digital design, factory prefabrication, intelligent installation and real-time monitoring and compensation. Through a digital twin-driven construction technology system, the worldwide problems of the variable-curvature ultra-deep steel structure in the aspects of form precision, mechanical stability and construction efficiency are solved, a technical normal form capable of being popularized is provided for the ultra-deep and variable-curvature steel structure, and building form innovation is promoted. And meanwhile, the dependence on manpower is reduced through modular and mechanical operation, the construction period is shortened, the safety is improved, and the cost is reduced by combining prefabricated unit components with dynamic monitoring.
Owner:CHINA UNITED NORTHWEST INST FOR ENG DESIGN & RES

Industrial part carrying control method and system based on dynamic path planning

The invention discloses an industrial part carrying control method and system based on dynamic path planning, and relates to the technical field of industrial equipment control, and the technical scheme is characterized in that an initial path satisfying suction constraint and joint torque limitation is generated by using a path planning algorithm and quadratic programming; the method comprises the following steps: acquiring three-dimensional coordinates of an obstacle, a part inclination angle and joint torque data in real time through a fusion sensor to perform local deformation adjustment on a path, constructing a multi-objective optimization function, and dynamically balancing an obstacle avoidance distance to obtain an optimal carrying path on the premise of ensuring a certain coincidence degree with an initial path; feedforward torque compensation is carried out according to the optimal carrying path, and compliant adjustment of the contact force is achieved in combination with impedance control. According to the technical system, the path re-planning efficiency of the system in a dynamic environment is improved, the joint torque fluctuation is reduced, and the part damage rate is reduced.
Owner:YIBIN VOCATIONAL & TECH COLLEGE

Power electronic networking equipment stability analysis method, system, equipment and medium

The invention discloses a power electronic networking equipment stability analysis method, system, equipment and medium, and the method comprises the following steps: building a full-system state space model, carrying out the cross validation of the full-system state space model through employing a modal analysis method, an impedance analysis method and a complex torque analysis method, and obtaining the stability of the full-system state space model; obtaining a multi-mode coupling stability analysis result; according to the multi-mode coupling stability analysis result, constructing a power grid s domain node admittance matrix; establishing a virtual power angle dynamic equation of the network-forming converter, and optimizing control parameters according to an evaluation result; an inertia center reference system is adopted, a dynamic interaction model of the synchronous machine and the network-forming converter is established, and dynamic coupling characteristics between devices are analyzed through a relative motion equation. According to the method, the comprehensiveness, the precision and the engineering applicability of dynamic stability analysis of the novel power system are improved through fusion of a multi-dimensional collaborative evaluation framework and an innovative technical system.
Owner:YUNNAN POWER GRID CO LTD

Precision control method for inner molded surface of net rack lower hanging cast-in-place slab

The invention provides a method for controlling the precision of an inner molded surface of a cast-in-place slab hung below a net rack, and belongs to the technical field of wind tunnel construction.The method comprises the steps that a C-shaped clamping piece and a sensor system are installed on a net rack lower chord, a monitoring network is established, fatigue characteristic data are analyzed through a minimum cut algorithm, and a load imbalance coefficient is calculated; a high-precision adjustable suspender and a prestress adjusting device are installed to construct a dynamic supporting system, a three-level precision compensation mechanism is established to achieve preventive compensation before construction, real-time monitoring compensation in the construction process and corrective compensation after pouring is completed, and multi-target collaborative optimization is achieved through a dynamic adjusting algorithm and a game optimization model. A complete technical system including fatigue point prediction, load redistribution and precision real-time control is formed, and the technical problem that in the construction process of hanging the cast-in-place slab under the net rack, the plane precision control lacks a systematic dynamic adjustment mechanism is solved.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

Network construction new energy cluster wide area state perception and data fusion method and system

The invention discloses a networking new energy cluster wide area state perception and data fusion method and system, and the method comprises the steps: carrying out the multi-level data collection of all stations of a new energy cluster, and obtaining the multi-level multi-source heterogeneous data; performing multi-time-scale data preprocessing on the multi-level multi-source heterogeneous data to obtain fused data; constructing a multi-level adaptive state sensing model based on the fused data, and performing state sensing based on the multi-level adaptive state sensing model; and constructing a multi-domain associated data mapping mechanism based on the fused data and the state sensing result, so as to realize a closed loop from sensing to evaluation and from evaluation to optimization based on the multi-domain associated data mapping mechanism. According to the method, a technical system of'multi-level acquisition, multi-time-space fusion, adaptive perception and multi-domain mapping 'is constructed, an end-to-end closed loop of a new energy cluster from perception to optimization is realized, and deep collaboration and accurate interaction between new energy and a power grid are realized through technical innovation and fusion application.
Owner:CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD +2

Multi-dimensional quantitative evaluation method for crustal stability

The invention belongs to the technical field of earth crust information, and aims to provide an earth crust stability multi-dimensional quantitative evaluation method which integrates earth surface deformation, underground activities, modern geodetic survey and long-term geological data. A crustal stability multi-dimensional monitoring and evaluation technology system composed of a plurality of first-level index and second-level index parameters is determined from different spatial and temporal scales, the objectivity and scientific rationality of safety quantitative evaluation of areas along urban activity fractures are remarkably improved, and guarantee is provided for engineering layout site selection and high-quality operation and maintenance.
Owner:HENAN POLYTECHNIC UNIV +1

Scanning path planning method for full coverage of large-scale structural member

The invention belongs to the technical field of three-dimensional scanning path planning and industrial automatic detection, and particularly relates to a full-coverage scanning path planning method for a large complex structural part. The revolutionary optimization of the three-dimensional scanning path of the large structural member is realized by constructing a comprehensive technical system of curvature self-adaptive sampling, pose collaborative optimization, a three-stage Weibull motion strategy, real-time collision detection and whole-process efficiency improvement. According to the scheme, geometric feature perception, motion continuity guarantee, algorithm adaptability enhancement and operation safety control are creatively integrated, a technical breakthrough is formed in three dimensions of non-blind area coverage, high motion efficiency and zero collision risk, and meanwhile, through parameterization design and a cross-platform compatible framework, the operation safety is improved. Deployment flexibility and system robustness in an industrial scene are remarkably improved, and a complete solution with high precision, high efficiency and high reliability is provided for automatic detection of a complex curved surface.
Owner:BEIJING INST OF TECH

Emulsion matrix vertical conveying pressure prediction and adjustment method and device

The invention discloses a method and a device for predicting and adjusting vertical conveying pressure of an emulsion matrix, which realize gradient release of kinetic energy of fluid and suppression of impact pressure through dynamic pipeline structure design and collaborative optimization of conveying parameters, combined design of a snakelike pipeline and a sectional horizontal extension section, and cooperation with a tail end U-shaped buffer structure. A multistage speed control device and a variable damping assembly are constructed, and a flow velocity fine regulation and working condition self-adaptive matching mechanism is formed in combination with a pressure prediction model based on machine learning. A fluid-solid-heat multi-physics field coupling analysis technology is introduced, a non-Newtonian fluid constitutive model is optimized, and a pressure distribution rule under a complex working condition is accurately predicted. Through rheological property research and formula improvement, an emulsion matrix system with high thixotropy and suitable yield stress is developed, and the system adaptability is improved from the two dimensions of fluid intrinsic characteristics and a conveying process. According to the technical system, the pressure fluctuation amplitude of the pipeline is remarkably reduced while the conveying efficiency is guaranteed.
Owner:BEIJING MINING & METALLURGICAL TECH GRP CO LTD +1

Campus low-carbon energy-saving smart classroom management method and system based on virtual classroom

The invention discloses a campus low-carbon energy-saving smart classroom management method and system based on virtual classrooms. The method comprises the following steps: constructing a basic classroom resource pool; a classroom intelligent infrastructure layer is constructed through an environment sensing device, a network transmission device and an intelligent controller; constructing a digital twinborn model of the virtual classroom by combining the attribute information of the basic classroom resources and the classroom environment parameters collected by the intelligent facility; based on a digital twinborn model, monitoring the operation condition of each piece of hardware equipment in a classroom in real time; generating an operation and maintenance scheme and forming an operation and maintenance file according to the operation condition of the equipment and the prediction analysis result; constructing an energy consumption model of the virtual classroom, performing multi-dimensional evaluation on energy consumption of the classroom in real time, and constructing a carbon effect index; corresponding classroom services are developed in a targeted manner according to attribute characteristics of different types of classrooms; for different service objects, corresponding service interfaces are provided to realize input of classroom use requirements. And a complete technical system of low-carbon energy-saving intelligent classroom management is constructed.
Owner:HUBEI UNIV OF ECONOMICS

Predictive maintenance and energy-saving linkage method and device for industrial air conditioner, electronic equipment and computer readable storage medium

The invention provides a predictive maintenance and energy-saving linkage method and device of an industrial air conditioner, electronic equipment and a computer readable storage medium, and is applied to the technical field of data processing. Core operation and environment parameters such as the start-stop frequency of the compressor are collected; monitoring the state of a key component by means of the Internet of Things and edge calculation, constructing an equipment degradation and environment association model, and generating a preliminary maintenance demand and energy consumption early warning; designing a hierarchical maintenance strategy by using a digital twinning and cost model, and outputting a target maintenance instruction and an energy-saving report; dynamically adjusting parameters to generate a linkage control scheme in combination with the thermal comfort and the peak-valley electricity price; further, a multi-device global collaboration strategy is expanded; and finally, generating the reliability level and the energy-saving benefit value of the equipment through multi-dimensional evaluation, forming a closed-loop technical system, and guaranteeing the safety and energy conservation of the equipment.
Owner:CLP ZHIWEI (SHANGHAI) TECH CO LTD +1

Processing method and system of data element credible circulation technology

The invention discloses a processing method and system for a data element credible circulation technology, and belongs to the field of data element credible circulation technology process.The method comprises the steps that circulatory and credible technology text data sets are preprocessed, the similarity of the circulatory and credible technology text data sets is calculated, and credible circulation technology texts are obtained through screening; obtaining a data transaction link and combining the existing key link to determine a data element circulation link; calculating the similarity between the credible circulation technology text and the data element circulation link, classifying the credible circulation technology text to the corresponding link, and constructing a data element credible circulation technology system; finally, subject analysis is conducted on the classified text, feature words of the credible circulation technology function are determined, and then a data element credible circulation technology system framework is built; according to the method, the suitability of a data element credible circulation technology and links is enhanced, and a technical system framework is perfected.
Owner:XIAN INT STUDIES UNIV

Intelligent voice broadcast system and method for elevator

According to the intelligent voice broadcast system and method for the elevator, elevator car environment data are collected in real time through a multi-source heterogeneous sensor set, and passenger density distribution and movement tracks are calculated through fusion of a millimeter wave radar and a 3D visual sensor; physiological features of a handrail contact area are detected through a biological impedance sensor so as to judge the health state of a passenger, and the current signal-to-noise ratio is dynamically calculated and the voice frequency band is optimized through an environment noise analysis module. Therefore, by constructing a technical system of'multi-modal perception-edge intelligent decision-cross-modal interaction 'and adopting innovative means such as millimeter-wave radar and biological impedance fusion sensing, deep reinforcement learning of a dynamic strategy and a phased array directional sound field, the problems of broadcast stiffness, poor scene adaptability and privacy potential safety hazards are solved. According to the system and method, accurate passenger feature recognition, dynamic voice content generation and multi-channel collaborative feedback are achieved through two-dimensional innovation, and the intelligent level and service efficiency of elevator voice interaction are improved.
Owner:SUZHOU SHENGYIN DIGITAL TECHNOLOGY CO LTD

Mine underground accurate fire preventing and extinguishing cooperation system and method based on rock mass fracture recognition

The invention discloses a mine underground precise fire preventing and extinguishing cooperation system based on rock mass fracture recognition, the mine underground precise fire preventing and extinguishing cooperation system comprises a data acquisition module, a rock mass fracture recognition module and a risk assessment module, and the invention further discloses a mine underground precise fire preventing and extinguishing cooperation method based on rock mass fracture recognition. The whole process from image input to fracture feature extraction, fracture positioning and risk assessment is achieved, the relation between the fire risk and fracture performance features can be effectively analyzed, the recognition accuracy of coal rock fractures and the reliability of risk assessment are improved, an effective fire prevention and extinguishing scheme is designed in combination with expert experience, in addition, a decision-making tree model is established, and the risk assessment efficiency is improved. Fire risk scoring is carried out according to image crack characteristics, an underground coal fire comprehensive prevention and control theory and technical system is finally constructed, and accurate targeted treatment of underground coal fire can be realized.
Owner:CHINA COAL TECH & ENG GRP SHENYANG ENG CO +2

Block chain-based power-carbon collaborative data governance and intelligent optimization method, system and device, and medium

The invention relates to the technical field of power-carbon collaboration, and discloses a block chain-based power-carbon collaboration data management and intelligent optimization method, system, device and medium, and the method comprises the steps: collecting power-carbon multi-source data in real time, and carrying out the data preprocessing; establishing a correlation model between electricity and carbon data so as to quantify a correlation relationship between unit power generation and carbon emission, and obtaining carbon emission reduction data; a double-objective optimization function is adopted to construct an electricity-carbon collaborative decision-making large model, and an optimal unit output scheme is output through deep learning; and generating a block chain hash identifier for each green electricity transaction, performing contract automatic verification, and if a performance risk is monitored, triggering early warning and sending an optimization suggestion. According to the invention, by constructing a technical system based on power-carbon collaborative data management and intelligent optimization, accurate conduction of carbon emission technical constraints, safety interaction of cross-system data, credible tracing of environmental rights and interests and dynamic prevention and control of risks are realized, and fusion and efficient collaborative operation of a power system and carbon emission management are promoted.
Owner:YUNNAN ELECTRIC POWER TESTING & RES INST (GRP) CO LTD +1

Partition wall structure integrated model simplification elastic analysis and design method

The invention relates to the technical field of building structure engineering, in particular to a simplified elastic analysis and design method for an integrated model of a partition wall structure, and provides a simplified elastic analysis and design method based on a physical mechanism and data driving. And instead, a practical design tool which can be directly used for engineering design, is seamlessly connected with the current specification and has definite physical significance is formed based on intelligent calibration of a large-refinement nonlinear analysis result. According to the method, quantitative correlation between elasticity and nonlinear performance is established, theoretical preciseness is guaranteed, and the method has extremely high engineering practicability and serves as preposition and supplement of refined nonlinear analysis to form a complete technical system from rapid scheme design to accurate performance verification.
Owner:SICHUAN PROVINCIAL ARCHITECTURAL DESIGN & RES INST

Control method of electricity utilization information acquisition terminal with security situation awareness

The invention discloses a control method of an electricity utilization information acquisition terminal with security situation awareness, and relates to the technical field of electricity utilization information acquisition. Multi-source state evaluation, command risk division, rule decision and execution feedback are no longer independent functions through operation modes, joint security state levels, control quotas, command risk levels, command quota state marks and mutual reference between local execution consistency indexes and collaborative domain execution consistency indexes. A technical system with a close coupling relationship is formed in the electricity utilization information acquisition terminal, so that the method is not only suitable for resident courts, special transformer users and important user scenes, but also capable of automatically updating operation mode definitions, safety state division thresholds, control quota parameters and safety control rules through version comparison after main station side strategy update messages are issued. And the terminal security control capability is continuously evolved along with operation experience and strategy adjustment, and a strong synergistic effect is embodied.
Owner:LIYANG HUAPENG ELECTRIC POWER METER

Ecological environment management and control partition division method based on multi-element coupling cooperation

The invention discloses an ecological environment management and control partition division method based on multi-element coupling cooperation, and belongs to the technical field of space planning, and the method comprises the steps: S1, constructing a multi-element cooperation and multi-level classification ecological environment partition management and control system; s2, on the basis of natural attributes and space transmission diffusion rules of the ecological environment elements, environment element management and control partitions are divided through partition space boundary recognition and classification delimitation of the ecological environment elements; s3, dividing an environment management and control unit into a priority protection unit, a key management and control unit and a general management and control unit by adopting space overlay analysis; the spatialization, integration and refinement levels of ecological environment management are comprehensively realized and remarkably improved, theoretical systems, key technical methods and application modes in the subject fields of ecological environment evaluation, planning, management and the like are perfected, and technical achievements comprehensively support and construct an ecological environment partition management and control technical system and an application management system. And experience is provided for improvement of a national ecological environment zoning management and control technology system.
Owner:SICHUAN ACAD OF ENVIRONMENTAL SCI

Vehicle network interaction AI cooperative scheduling method and system based on multi-source data fusion

The invention provides a vehicle network interaction AI cooperative scheduling method and system based on multi-source data fusion. According to the method, a'federated learning node + abnormal data processing unit 'collaborative architecture and an AI collaborative scheduling model containing topological modeling, prediction and optimization decision submodules are innovatively constructed, and a unique technical system is formed; fusing vehicle, power grid, environment, user and charging station multi-source heterogeneous data, and generating a vehicle-power grid topological association feature set through isolated forest + GAN preprocessing and transverse federated learning encryption fusion; gAT heterogeneous graph modeling, LSTM-Transform prediction, deep reinforcement learning optimization and online learning dynamic parameter adjustment technologies are integrated, and the data processing efficiency is improved; the data privacy security (the original data cross-domain transmission quantity is equal to 0) is realized, the topological association precision is improved by 40%, and the manual risk and the management cost are reduced; the application module generates a charging and discharging instruction, a load adjusting quantity and an excitation scheme, the scientific management of the whole process of vehicle network interaction is supported, the peak-valley cost is reduced by 15-20%, and the carbon emission is reduced by 10-15%.
Owner:STATE GRID (BEIJING) NEW ENERGY VEHICLE SERVICE CO LTD

Fusion and modeling overhead line construction method, system, equipment and medium

The invention discloses a fusion and modeling overhead line construction method, system and device and a medium, and the method comprises the steps: obtaining road detection data information, and constructing a construction simulation scene through the road detection data information; collecting construction condition information, and performing simulation construction in a construction simulation scene based on the construction condition information; in the simulation construction process, safety analysis is carried out, and construction hidden danger points are identified; and carrying out risk management and control on construction hidden danger points. Through a complete technical system of construction simulation scene construction, construction process simulation, safety analysis and risk management and control, the safety and efficiency of overhead line construction are remarkably improved. The virtual simulation technology and actual construction environment information are fused, scheme verification before construction and real-time risk prevention and control in construction are achieved, the mode that traditional overhead line construction depends on experience judgment is fundamentally changed, and a scientific basis is provided for construction decision making.
Owner:GUIZHOU POWER GRID CO LTD

Construction method of ultra-deep underground diaphragm wall capable of automatically monitoring whole process of strong permeable stratum

The invention relates to a method for automatically monitoring construction of an ultra-deep underground diaphragm wall in the whole process of a strong permeable stratum, and aims to solve the problems that the ultra-deep underground diaphragm wall in the strong permeable stratum is low in construction precision, easy to collapse, lack of real-time monitoring and the like. Five technical systems are used for synergistically solving the problems that (1) a lower suspended beam, a reserved post-cast strip and an inverted bracket structure are adopted in the blocking wall technical system, so that the impermeability is enhanced; (2) the detachable reinforcement cage supporting system improves rigidity and hoisting safety through modular truss supporting; (3) the verticality ultrasonic detection system realizes high-precision detection of the guide wall by using an ultrasonic signal; (4) the structural steel wall-attached inner bracket system prevents the guide wall from cracking through adjustable support; and (5) the automatic monitoring system integrates multiple sensors to monitor displacement and temperature in real time and performs cloud early warning. Through multi-technology fusion, the construction efficiency and quality are remarkably improved, and the method is suitable for ultra-deep underground diaphragm wall construction under complex geological conditions and has the advantages of being high in anti-permeability, controllable in deformation, capable of achieving real-time early warning and the like.
Owner:HANGZHOU JIANGRUN TECH LIMITED

Data intelligent simulation processing method and system for breach emergency rescue

The invention discloses a data intelligent simulation processing method and system for breach emergency rescue, and belongs to the technical field of simulation processing. The method comprises the following steps: at a dike breach, acquiring breach depth data, breach width data and breach length data of the breach in real time by using an unmanned aerial vehicle and a multi-mode sensor, and constructing a three-dimensional distribution matrix of the breach; collecting water velocity data and sediment content data of the breach; calculating a release disturbance risk value corresponding to a single row, a single column and a single layer in the three-dimensional distribution matrix; calculating a putting disturbance risk weight; taking a single row and a single column of the breach as a putting path, and calculating a putting disturbance safety coefficient of the putting path based on a putting disturbance risk weight; and presetting a putting disturbance safety coefficient threshold value, and analyzing and performing dynamic updating management on a putting path. Through a three-in-one technical system of spatial modeling, data fusion and simulation evaluation, the scientificity, safety and real-time adaptability of throwing path selection in the breach rescue process are effectively improved.
Owner:NANJING HYDRAULIC RES INST

Multi-source cooperative remote sensing debris flow full-period monitoring analysis method

The invention discloses a multi-source cooperative remote sensing debris flow full-period monitoring analysis method, which comprises the following steps of: 1, acquiring multi-source remote sensing data and land utilization vector data, and establishing a full-period monitoring basic database; 2, preprocessing the collected multi-source remote sensing data and land utilization vector data to form standardized space basic data of a unified space coordinate system; 3, analyzing and processing the standardized spatial basic data to obtain a disaster condition; and step 4, performing emergency evacuation plan planning, disaster damage assessment report making and post-disaster restoration progress monitoring based on the analyzed disaster condition. According to the invention, through four core innovations of standardized process, dynamic cooperative monitoring, low-cost change detection and disaster-bearing body refined analysis, an efficient and extensible debris flow full-cycle technical system is constructed, and the method has relatively high popularization universality.
Owner:福州市勘测院有限公司

Ethylene regulation and dynamic controlled atmosphere synergistic fresh-keeping method for high-maturity small white apricots

The invention belongs to the technical field of fresh keeping, and discloses a high-maturity small white apricot ethylene regulation and dynamic controlled atmosphere synergistic fresh keeping method which comprises the following steps: after packaging by a special net cover, pre-cooling in time, and synchronously carrying out 1-MCP fumigation and stage I controlled atmosphere treatment; a refrigerator car transportation or common car heat preservation and cold storage transportation mode is adopted, and stage II controlled atmosphere treatment is synchronously carried out in the logistics link; transferring into a modified atmosphere packaging box of which the inner surface is covered with a photocatalytic fresh-keeping coating, entering a goods shelf, and synchronously carrying out stage III modified atmosphere treatment. According to the invention, a synergetic technology of ethylene dynamic control and self-adaptive adjustment of modified atmosphere parameters is adopted, a full-chain linkage fresh-keeping technology system covering production area-logistics-shelf is constructed, and the core problems of difficulty in ethylene sensitive fresh-keeping, link splitting, high cost and the like in the small white apricot industry are solved. The technology has been applied in Xinjiang Uygur autonomous region warehouse car and wheel platform demonstration bases, the shelf life of eight-mature small white apricots reaches 10-15 days, and the intact fruit rate is 92% or above and is prolonged by 3-5 times compared with a traditional technology.
Owner:INST OF AGRO FOOD SCI & TECH CHINESE ACADEMY OF AGRI SCI +1

SPCS building industrialization construction system

The invention discloses an SPCS building industrial construction system, which belongs to the technical field of fabricated buildings, and comprises a complete set of technical systems for building industrial design, production and construction, industrial production, transportation and construction site equipment, and a cloud platform for full-life-cycle management and control. The three parts cooperate to realize whole-process integrated construction of investment and planning, planning and design, production and supply, construction and delivery, and operation and maintenance and absorption. Data communication and collaboration are achieved, the design and production matching degree is improved, the construction real-time management and control capacity is improved, quality and safety are guaranteed, green, low-carbon and resource recycling are achieved, and the comprehensive benefits of industrial building of buildings are remarkably improved.
Owner:SANY CONSTR TECH CO LTD

Surrounding rock stress regulation and control method based on near-far field pressure relief

The invention provides a surrounding rock stress regulation and control method based on near-far field pressure relief. Aiming at the problem of surrounding rock instability caused by high ground stress and mining disturbance of a deep roadway, a grading response technical system is provided. Near-field regulation and control are achieved through high-strength active and passive composite supports (anchor net shotcreting and a steel tube concrete support), plastic zone form monitoring and differential pressure relief: based on dynamic monitoring of the radius of a surrounding rock plastic zone, a mining influence index K is calculated, and when 1 < = Klt; 2, a borehole pressure relief and wall back yielding layer cooperative control technology is adopted, and when a plastic zone distortion part does not change to a butterfly-shaped plastic zone, the plastic zone distortion part is induced to uniformly expand to a circle; when K is larger than or equal to 2, a far-field air cannon presplitting roof cutting technology is combined, the roof cutting technology forms a full-section crack along a weak surface of a rock body through a high-pressure gas sealing cavity, a mining-induced stress transmission path is cut off in advance, traditional static design limitation is broken through, gas presplitting is adopted for replacing blasting / hydraulic roof cutting, and zero pollution and accurate and controllable energy in the construction process are achieved; and the top cutting depth is dynamically optimized along with the K value.
Owner:SHANDONG JIANZHU UNIV

Transparent mine construction method based on digital twinning

The invention relates to a transparent mine construction method based on digital twinning, and the method comprises the steps: collecting original data, and constructing a standardized data asset system; constructing a mine digital twinborn body through a geometric, physical, behavioral and regular four-layer modeling mode; establishing a real-time linkage channel of the physical mine and the digital twin in combination with the digital twin and real-time original data, and fusing a multi-source data correction model to form a virtual-real closed-loop mechanism; based on the optimized digital twinborn and closed-loop mechanism, developing a scenarized application module, and designing a distributed deployment architecture in which a cloud end is matched with an edge end; and finally, establishing an equipment, system and data total-factor intelligent operation and maintenance system by relying on the digital twinborn body, a closed-loop mechanism and an application module, and dynamically upgrading the system in combination with a regular iteration mechanism to ensure that each technical system adapts to the full-life-cycle demand of the mine for a long time. The technical problems of data fragmentation, model staticization and system isolation in traditional mine management are solved.
Owner:SHANXI COAL GEOLOGY 114 EXPLORATION INSTITUTE CO LTD +1

Construction equipment and construction technology for scouring and repairing flow-state solidified soil of offshore wind turbine foundation

The invention relates to the field of flow-state solidified soil testing devices, and particularly discloses construction equipment and a construction process for scouring and repairing flow-state solidified soil for an offshore wind turbine foundation. Comprising an overwater carrying carrier, and a material mixing pool, a water adding stirring pool, a material conveying pipeline, a material conveying pump, a slurry conveying mechanism, a flow state solidified soil scouring performance testing device, a solidified soil rotational rheometer, a fluidity test bed, a detection material taking mechanism and a control center which are arranged on the carrier. The construction device is a complete technical system covering performance integrated testing, site construction real-time detection and complex environment coupling simulation, the dual problems that research and development of a flow-state solidified soil material is lagged and site repair quality control is insufficient are effectively solved, and the safety and reliability of offshore wind turbine foundation scouring repair engineering are guaranteed.
Owner:SHANDONG UNIV

Energy-saving material separation and purification device after hydroxylation reaction of phenol and hydrogen peroxide

The utility model provides an energy-saving device for separating and purifying materials after hydroxylation reaction of phenol and hydrogen peroxide, and relates to the technical field of chemical synthesis. Materials obtained after phenol hydrogen peroxide hydroxylation reaction are separated and purified through the extraction tower, the extraction agent recovery tower, the first phenol removal tower, the tar removal tower, the second phenol removal tower, the catechol removal tower, the light component removal tower and the hydroquinone tower, the whole technological process is simple, the yield is high, and the high-purity hydroquinone product and the high-purity catechol product can be obtained; according to the utility model, the extraction tower is adopted to replace a dehydration rectifying tower in the traditional process to remove phenol-containing wastewater, so that the phenol recovery rate is improved, and the subsequent wastewater treatment burden is reduced; and the tar removal tower is arranged behind the phenol removal tower I, so that the retention time of tar impurities in the whole process system is shortened, and the process safety is improved. According to the utility model, the high-temperature waste heat at the top of the dephenolization tower I is recovered by combining waste heat recovery with a mechanical steam recompression energy-saving technology, so that the process energy consumption of the operation of the whole device is effectively reduced.
Owner:TIANJIN ZHONGWANG CHEM TECH CO LTD