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503 results about "Protected area" patented technology

Protected areas or conservation areas are locations which receive protection because of their recognized natural, ecological or cultural values. There are several kinds of protected areas, which vary by level of protection depending on the enabling laws of each country or the regulations of the international organizations involved.

High and cold wetland dynamic monitoring and health evaluation method and system based on multi-source remote sensing

The invention relates to a high and cold wetland dynamic monitoring and health evaluation method and system based on multi-source remote sensing. The method comprises the following steps: step 1, data acquisition and preprocessing; step 2, multi-modal data feature extraction; step 3, performing multi-modal data fusion; step 4, dynamic monitoring; step 5, evaluating wetland health; according to the invention, the calculation method of the SAR polarization decomposition model and the optical wetland index is optimized due to the unique seasonal change and earth surface complexity of the high and cold wetland, a scientific basis is provided for the management of the wetland protection area, and the ecological restoration efficiency is improved; alpine region water resource management and ecological protection policy making are supported; and data support is provided for researching the wetland carbon sink function and the climate change influence.
Owner:INST OF EXPLORATION TECH OF CHINESE ACAD OF GEOLOGICAL SCI

Natural resource engineering data intelligent management method

PendingCN120410451AOffice automationKnowledge representationEcological reserveStream flow
The invention provides an intelligent management method for natural resource engineering data, and relates to the technical field of data processing, and the method comprises the steps: inputting a time-space coupling model into real-time weather forecast data, simulating water distribution schemes under different rainfall scenes, automatically recognizing a river reach position of which the ecological flow is lower than a design threshold value, and carrying out the calculation of the river reach position. In combination with a historical water replenishing strategy case library, generating a multi-objective optimization scheduling scheme including a water replenishing time sequence, a water replenishing path and a water replenishing amount; three monitoring points are arranged at a downstream section of an ecological protection area, a flood control section and a canal head of an irrigation area in a drainage basin, and ecological flow, flood control section water level and canal water level data are monitored in real time respectively; and dynamically correcting the water supplementing time sequence, the water supplementing path and the water supplementing amount in the multi-objective optimization scheduling scheme to obtain a corrected scheduling scheme. According to the method, refinement and toughness of drainage basin water resource management can be improved.
Owner:惠民县国土空间生态修复中心(惠民县土地整理储备中心)

Plateau mountain plant invasion prevention and control ecological barrier forest and grass belt configuration optimization method

ActiveCN119294609AGood prevention and control effectstop the spreadForecastingResourcesEcological environmentEcological data
The invention discloses a plateau mountain plant invasion prevention and control ecological barrier forest grass belt configuration optimization method, and relates to the technical field of ecological barrier construction, and the method comprises the steps: collecting basic ecological data of a target research region, and generating an ecological thematic map through preprocessing and visual marking; investigating and counting invasive plant distribution data of the target area, and mapping the invasive plant distribution data to the ecological thematic map to generate an invasive plant distribution thematic map; determining an intrusion source ground and an intrusion path through spatial analysis and diffusion path analysis; performing grade evaluation on the protection area based on the intrusion distribution data, superposing an intrusion path and risk grade information, and determining an ecological barrier range; and constructing an ecological barrier forest and grass belt system, outputting a configuration scheme, and implementing plant invasion prevention and control. The technical problem that in the prior art, accurate prevention and control of invasive plants in a complex ecological environment are difficult due to insufficient comprehensiveness is solved, and the technical effect of optimizing the prevention and control effect on the invasive plants in the target research area is achieved.
Owner:YUNNAN UNIV

Ecological system monitoring method and system based on large model

ActiveCN119379113AForecastingEcological reserveData set
The invention provides an ecological system monitoring method and system based on a large model, and the method comprises the steps: carrying out the analysis of ecological data based on a macroscopic ecological model, a plurality of single species distribution models, and a combined species distribution model, and outputting the prediction content; fusing output contents of the three types of models with linkage conditions of environmental data and geographic positions, and processing a fusion result by adopting sequential Bayesian filtering to obtain an estimated value of a species target state in the ecological protection area; the estimated value of the species target state and other multi-source monitoring data are aligned according to timestamps and converted into an input data set, and a target time sequence and key data features included in the input data set are input into a target large model according to a preset prompt template, and predicting the ecological condition in the ecological protection area by using the target large model so as to monitor the ecological protection area. According to the method, multi-dimensional data and a plurality of types of models can be fully utilized to predict the ecological condition of the species, and the reliability and accuracy of prediction are ensured.
Owner:ZHEJIANG NONGCHAOER SMART TECH CO LTD

Land space planning data intelligent analysis method and system

The invention provides an intelligent analysis method and system for territorial space planning data, and relates to the technical field of data processing, and the method comprises the steps: recognizing an overlapping region through comparative analysis; performing buffer area analysis on the geographic information data, the land utilization data and the urban planning data, and creating buffer areas for rivers, roads and protection areas to identify conflict areas; according to the overlapping region and the conflict region, a corresponding territorial space planning scheme is found through iterative search; performing pattern recognition on the territorial space planning scheme to obtain a planning risk assessment result; according to the planning risk assessment result, the risks are divided into different categories, and each risk is quantified to obtain a specific score of each risk category; and obtaining an overall risk assessment result of the whole territorial space planning scheme according to the scores of the various risks. According to the invention, the accuracy and efficiency of risk assessment can be improved.
Owner:SHANDONG XINMING SURVEYING & MAPPING CO LTD LINYI BRANCH

Method for accurately dividing lake and reservoir type water source protection area based on dynamic coupling of multiple spatial-temporal scale indexes

The invention provides a lake and reservoir type water source protection area accurate division method based on multi-temporal-spatial-scale index dynamic coupling, and the method comprises the steps: constructing a risk propagation network in a water source area and a multi-scale index dynamic weight distribution model through multi-temporal-spatial-scale decomposition and feature extraction; information fusion among different spatial-temporal scale indexes is realized by using a cross-scale index association transfer calculation framework, and a spatial-temporal scale adaptive QQEM-PSR evaluation system is constructed based on a scale coupling feature space and a dynamic weight matrix. The technical problems that in a traditional method, multi-temporal-spatial-scale index coupling is difficult, risk assessment staticizing is insufficient, and protection area boundary optimization is insufficient are solved, and accurate division and dynamic optimization management of the water source protection area are achieved.
Owner:WATER RESOURCES DEV RES CENT OF TAIHU BASIN ADMINISTRATION

Enteromorpha green tide refined drift forecasting method considering obstacle blocking effect

The invention discloses an enteromorpha green tide fine drift forecasting method considering an obstacle blocking effect, and belongs to the field of enteromorpha green tide drift forecasting methods. The method comprises the following steps: a, selecting a forecast area, and obtaining obstacle distribution conditions and environmental elements in the forecast area; b, acquiring a historical satellite remote sensing image of the forecast area, and acquiring the green tide distribution position, shape and coverage area of enteromorpha on the basis of the satellite remote sensing image; c, constructing an enteromorpha green tide fine drift forecasting model considering the obstacle blocking effect; d, training the constructed enteromorpha green tide fine drift forecasting model considering the obstacle blocking effect; and e, determining an enteromorpha green tide distribution position as an initial drift position through a satellite remote sensing image, and carrying out drift forecasting by adopting the trained refined drift forecasting model to obtain enteromorpha green tide particle positions at different moments. The method can provide accurate drifting early warning results for raft frame culture areas and key disaster protection areas.
Owner:BEIHAI FORECASTING CENT OF STATE OCEANIC ADMINISTRATION ((QINGDAO MARINE FORECASTING STATION OF STATE OCEANIC ADMINISTRATION) (QINGDAO MARINE ENVIRONMENT MONITORING CENT OF STATE OCEANIC ADMINISTRATION))

Cultivated land reserve resource potential grading method based on multi-dimensional cultivated land quality evaluation

InactiveCN120146636AResourcesLand resourcesEcological reserve
The invention discloses a cultivated land reserve resource potential grading method based on multi-dimensional cultivated land quality evaluation, particularly relates to the technical field of land resource management, and is used for solving the problems of insufficient cultivated land potential grading precision and lack of ecological constraints caused by single dimension and data splitting of an existing evaluation method. Interpreting land types by verifying and fusing cultivated land quality classification codes and remote sensing, complementing constraint fields such as ecological protection areas and pollution levels, and constructing a dynamic model associated with natural quality parameters and ecological limitation indexes; on the basis of land parcel type matching differentiation screening rules, threshold screening and suitability scoring are carried out on unutilized lands, abandoned garden lands and the like in a classified mode; eliminating ecological sensitive or pollution exceeding land parcels through logic verification, calculating a comprehensive potential score in combination with a multi-dimensional parameter weight and a dynamic threshold value, and dividing the comprehensive potential score into high, medium and low grades according to regional resource requirements; and the cultivated land quality multi-dimensional collaborative evaluation and ecological protection two-way decision is realized.
Owner:CHONGQING HUADI RESOURCES ENVIRONMENT TECH CO LTD

Biodiversity evaluation system for wetland ecological protection area

PendingCN120235337AForecastingResourcesSustainable managementEcological reserve
The invention provides a wetland ecological protection area biodiversity evaluation system, and relates to the technical field of ecological system diversity evaluation. The evaluation system comprises a data acquisition and management module, a species diversity analysis module, an ecological system function evaluation module, a threat factor identification and analysis module, a decision support and suggestion module and a data visualization and report module. According to the invention, the system is a platform integrating data collection, analysis, assessment and decision support, aims to comprehensively assess the biological diversity condition in the wetland ecological system and provide a scientific basis for sustainable management and protection of the wetland, not only can realize scientific and systematic management of wetland ecological protection, but also can provide a scientific basis for the sustainable management and protection of the wetland. The sustainable development of biological diversity protection can be promoted, the relationship between the biological diversity and ecological processes such as material circulation and energy flow in the wetland ecological system can be better understood through the evaluation system, and the ecological process of the wetland ecological system can be deeply understood.
Owner:SHANDONG PROVINCIAL ECO ENVIRONMENT MONITORING CENT

Ruins protection area tourist diversion system and method based on dynamic bearing capacity

The invention discloses a ruins protection area tourist diversion system and method based on dynamic bearing capacity. The diversion system comprises a data acquisition module, a bearing capacity calculation module, a diversion strategy optimization module, a tourist guide module and a feedback adjustment module. Real-time tourist data and environment information including tourist flow, residence time, meteorological conditions, site physical conditions and the like are collected; calculating the dynamic bearing capacity of the current ruin area, and comprehensively considering factors such as tourist load and environmental influence; a fuzzy logic reasoning method is adopted to evaluate tourist density and define a congestion degree grade: an IPSO algorithm is adopted to optimize tourist shunting paths, the shunting paths are generated and tourists are guided, and accurate shunting is carried out by adopting modes of intelligent identification, dynamic indication boards, mobile applications and the like; based on historical data and a real-time monitoring result, error correction is carried out on bearing capacity prediction, and the prediction accuracy is improved.
Owner:NORTHWEST UNIV

Dike outburst and flood routing simulation method

The invention belongs to the technical field of hydraulic engineering, and particularly discloses an embankment burst and flood routing simulation method which comprises the following steps: step 1, subdividing a breach area of an embankment by adopting a rectangular grid, and respectively subdividing a river channel on one side of the embankment and a protection area on the other side of the embankment by adopting an unstructured grid; step 2, flood information in the unstructured grid is acquired, and the flood information is interpolated into the rectangular grid; and step 3, determining outburst information of the breach area by using the water-soil coupling kinetic model, interpolating the outburst information into the unstructured grid, and repeating the step 2 and the step 3 until a preset condition is met. According to the method, a water-soil coupling dynamic model is adopted to describe the dike burst process, parameters such as the burst rate and the final breach size of an existing model do not need to be manually given, and full-automatic simulation of the dike burst process is achieved. According to the method, the structure-non-structure double grid technology is adopted, and the precision and efficiency of the embankment outburst process and outburst flood routing calculation are both considered.
Owner:CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION

Method and system for dynamically measuring and calculating carbon sink in whole construction process of wetland protection area

The invention discloses a method and system for dynamically measuring and calculating carbon sink in the whole construction process of a wetland protection area, and belongs to the technical field of ecological environment monitoring, and the method comprises the following steps: respectively calculating potential carbon emissions of a building material production and transportation stage, a construction stage and an operation stage after project construction, and obtaining a carbon emission accounting result; a carbon flux model is established, and a carbon flux change data set of the whole project construction process is calculated and obtained according to wetland ecological monitoring data, meteorological data, biological and physiological parameters and construction activity parameters; according to the carbon emission accounting result and the carbon flux change data set, a comprehensive carbon sink measurement and calculation model of the whole construction process is constructed; the actual carbon sink data are compared to correct the measurement and calculation model, and the corrected measurement and calculation model is applied to carbon sink amount calculation in the whole construction process of different types of wetland protection area production and construction projects; comparing a model calculation result with results obtained by other authoritative calculation methods to verify the accuracy and reliability of the model; and the blank in the field of current wetland carbon sink measurement and calculation is filled.
Owner:CCCC THIRD HIGHWAY ENG CO LTD +1

Ecological environment big data processing method based on mining area pollutant migration behavior modeling

The invention discloses an ecological environment big data processing method based on mining area pollutant migration behavior modeling, and relates to the technical field of big data processing. Comprising the steps that protection points in a target range and geodetic coordinate values of a mining area are obtained, the protection points comprise a mass residential area, an ecological protection area and a water source protection area, and the geodetic coordinate values are used for representing latitude and longitude coordinates and the altitude; and according to the first group of geodetic coordinate values and the geodetic coordinate values of the mining area, the maximum diffusion range interval of the mining area pollutants is determined, and the first group of geodetic coordinate values specifically refer to the geodetic coordinate values taken by any protection point type. According to the method, the three-dimensional geodetic coordinates of the protection point and the mining area are obtained, the pollutant diffusion range is scientifically defined, it is ensured that the space coverage of pollution monitoring is comprehensive and effective, potential threats of mining area pollution to surrounding people residential areas, ecological protection areas and water source protection areas can be accurately recognized, and the risk of mining area pollution to the surrounding people residential areas, ecological protection areas and water source protection areas is reduced. And the accuracy and pertinence of environmental risk assessment are improved.
Owner:INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS

Remote sensing image segmentation method and system based on land utilization

The invention relates to a remote sensing image segmentation method and system based on land utilization, and the method comprises the steps: collecting continuous periodic remote sensing images of the same region, marking a land type and a seasonal factor vector, and determining whether to carry out zoning or not according to a latitude span; then identifying the boundary of the miniature land parcel, calculating the boundary identification degree, delimiting a protection area, respectively calculating the seasonal factor vectors of the non-protection area and the protection area, and fusing the seasonal factor vectors into a global seasonal factor; secondly, preliminarily segmenting the image by adopting a fuzzy C-means clustering model in combination with a global seasonal factor, and finally carrying out image re-segmentation and verifying the accuracy in combination with a plot seasonal feature and boundary recognition degree correction model; according to the method, through operations such as fine seasonal factor vector construction, latitude zoning, protection area delimiting and multi-feature fusion, the shadow area land type classification accuracy is effectively improved, the influence of seasonal variation and boundary blur in a complex earth surface scene can be reduced, and the robustness and adaptability of the model are enhanced.
Owner:烟台市蓬莱区土地资源储备和利用中心

Automatic site selection method, system, equipment and medium for natural gas pressure regulating station

The invention relates to the technical field of natural gas pressure regulating station automatic site selection, and provides a natural gas pressure regulating station automatic site selection method, system, equipment and medium, and the method comprises the steps: precisely extracting a water system contour boundary through employing an edge detection algorithm, generating a water system distribution diagram, and building a terrain constraint condition through combining with a gradient grading mask; the gradient attenuation range of the water system safety buffer area is dynamically adjusted based on the river channel bending curvature characteristic and the branch intersection density, and water body protection and land use requirements are effectively balanced; recognizing boundaries of a building area and a forest protection area through color and shape features of the remote sensing image, and performing superposition to generate a composite security constraint layer; and screening low-gradient contiguous effective candidate blocks after excluding the protected area, simulating a feasible path through a depth-first search algorithm, and selecting an area which is high in connectivity with a main road and small in topographic relief as a final site. The ecological environment damage risk is reduced, the engineering implementation feasibility is ensured, and the optimal balance of ecological protection, safety protection and construction cost is achieved.
Owner:SHENZHEN URBAN PLANNING & LAND RES CENT

Forest resource management platform based on satellite data

The invention relates to the technical field of forest data management, in particular to a forest resource management platform based on satellite data, which comprises a data acquisition module, a data processing module, an emergency early warning module and a personal APP module, and is characterized in that the data processing module divides forest resources into elderly ancient wood resources and general forest resources. A first-level core protection area and a second-level buffer area are respectively set up for different old ancient trees, indexes such as forest stand volume V, forest stand canopy density C and tree density D are accurately measured and calculated for general tree resources, a rotation area and a logging area are scientifically planned according to the indexes, a dynamic monitoring and evaluation mechanism is established, sustainable utilization of forest resources is ensured, and the forest resource utilization rate is increased. Refining and scientization of forest resource management are realized.
Owner:FORESTRY & GRASSLAND BUREAU OF MALKANG

Ecological protection area planning system integrating remote sensing image and ground surveying and mapping

InactiveCN120746800AData processing applicationsScene recognitionEcological planningEcological reserve
A remote sensing image and ground surveying and mapping fused ecological protection area planning system specifically relates to the field of image processing, and comprises a multi-source data acquisition and fusion module for acquiring multi-source data of an ecological protection area through satellite remote sensing, aerial remote sensing and ground surveying and mapping technologies, and an ecological evaluation parameter calculation module for calculating ecological evaluation parameters of the ecological protection area based on a fused ecological comprehensive data set. Sequentially evaluating and determining an ecological vulnerability index, an ecological restoration priority index and an ecological protection effect evaluation index, generating a function partition, a restoration plan and a protection strategy optimization scheme of an ecological protection area by a planning decision module according to an evaluation result, periodically updating multi-source data by a dynamic monitoring and feedback module, and re-determining the evaluation result. According to the method, remote sensing images and ground surveying and mapping are fused, the ecological vulnerability, the restoration priority and the protection effect are evaluated through quantitative indexes, the ecological planning scientificity is improved, and reasonable resource allocation is achieved.
Owner:WEIHAI PLANNING TECH SERVICE CENT

Method for monitoring and evaluating service function of terrestrial ecosystem

The invention provides a terrestrial ecosystem service function monitoring and evaluation method, and the method comprises the steps: generating a biological feature vector and an environment feature vector according to biological data and environment data collected in an ecological protection region; performing species identification on the biological feature vector based on a biological large model, performing environment analysis on the environment feature vector based on an environment large model, and obtaining animal and plant information and environment quality evaluation conditions in the ecological protection area; and based on an ecological system evaluation model, carrying out comprehensive reasoning analysis on the organisms, the environment, the comprehensive feature vectors, animal and plant information in the ecological protection area and environment quality evaluation conditions, and evaluating an ecological system service function of the ecological protection area. Wherein the comprehensive feature vector is determined based on the fusion of the biological feature vector, the environment feature vector and the dynamically adjusted weight. According to the method, the overall ecological condition of the ecological protection area can be more comprehensively understood by adopting a large model technology, and more comprehensive, accurate, dynamic and scientific ecological system service function evaluation is provided.
Owner:ZHEJIANG NONGCHAOER SMART TECH CO LTD

Urban territorial space multi-element coupling intelligent optimization method and system

The invention discloses an urban territorial space multi-element coupling intelligent optimization method and system, and the method comprises the steps: quantifying the functional partition transition probability of an ecological protection region, a basic farmland and an urban development region based on a Markov model, and simulating the spatial distribution of functional partitions through a future land utilization simulation model, constructing a first multi-target optimization model in combination with resistance surface analysis of the minimum cumulative resistance model; collecting urban POI data, screening residential, commercial and public service types as optimization objects, dividing the optimization objects by utilizing clustering analysis, extracting core points, and constructing a second multi-target optimization model; and constructing graph structure data based on the road network, defining node and edge features, training the graph structure of the road network by using a graph neural network, extracting the features, and constructing a third multi-target optimization model to make a multi-target optimization decision of the road network.
Owner:INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS

Protection area management planning method and system based on aquatic product resource survey data

The invention relates to the technical field of aquatic product resource management, in particular to a protection area management planning method and system based on aquatic product resource survey data, and the method comprises the steps of data collection and preprocessing, data fusion and feature extraction, aquatic product resource evaluation and analysis, protection area management planning making, dynamic monitoring and adjustment and decision support and visual display. The method comprises the following steps: deploying aquatic product resource investigation equipment, remote sensing equipment and environment monitoring equipment, acquiring aquatic product resource data in real time, identifying key feature variables, performing partition evaluation on aquatic product resources by combining a clustering analysis method, formulating a protection area management plan, and performing resource change trend prediction through dynamic monitoring and a machine learning algorithm. Dynamic adjustment of protection area management is realized, a visual tool is used to display a resource change trend and a management state, and real-time decision support is provided for a decision department. According to the method, the management capability of the aquatic product resource protection area can be effectively improved, and a scientific guarantee is provided for ecological protection and sustainable utilization of resources.
Owner:HANGZHOU ACAD OF AGRI SCI

Fire-fighting smoke exhaust fan control method and system based on fire smoke spreading self-starting and self-stopping

The invention relates to the technical field of smoke exhaust fan control, in particular to a fire-fighting smoke exhaust fan control method and system based on fire smoke spreading self-starting and self-stopping. A fire detector is adopted to detect whether a fire exists in a set area or not; real-time temperature information and real-time shielding information in the protected area are collected in real time; fire information is obtained based on the real-time temperature information and the real-time shielding information; judging whether a fire early warning criterion is met or not according to the fire information; when the fire hazard early warning criterion is met, controlling the motor speed of the smoke exhaust fan corresponding to the protected area set by the fire hazard detector to be increased; when the fire hazard early warning criterion is not met, the motor speed of the smoke exhaust fan corresponding to the protected area set by the fire hazard detector is controlled to be kept unchanged at the existing running speed, and a comprehensive fire hazard environment sensing system is constructed by collecting real-time temperature information and real-time shielding information at the same time; therefore, the system can judge the development condition of the fire and the spreading trend of the smoke more accurately.
Owner:SHANDONG PROV CONSTR DESIGN & RES INST

Regional lightning protection method, device, equipment and readable storage medium

The present application provides a regional lightning protection method, device, equipment and readable storage medium. The present application can determine the geographical environment parameters and geometric shape parameters of the target protection area; and further determine the regional area of ​​the target protection area based on the geographical environment parameters and geometric shape parameters of the target protection area; and can also determine the lightning strike path of the target protection area; so that the protection range of the target protection area can be determined based on the lightning strike path of the target protection area and the regional area of ​​the target protection area; after determining the protection range of the target protection area, a plurality of target lightning protection devices can be further installed within the protection range of the target protection area to protect the target protection area from lightning strikes.
Owner:FOSHAN SHUNDE LUNJIAO JINDUN LIGHTNING PROTECTIONTECH DEV

Motorized barrier devices

Present invention is for motorized barrier devices, access management systems for managing access to protected areas and installations for protecting protected areas. The motorized barrier devices include a housing (11), a horizontal rigid beam (21) having a storage position and a barrier position raised with respect to the storage position, a pair of folding arms (29,39) between the housing and the horizontal rigid beam, and a motorized gear arrangement (28,39) for raising the horizontal rigid beam from its storage position to its barrier position and lowering the horizontal rigid beam from its barrier position to its storage position.
Owner:SMART FENCE LTD

Method for identifying optimal corridor width

A method for identifying an optimal corridor width includes: acquiring geographic information data of a target region; evaluating ecosystem service functions of the target region, and constructing an ecological source land in combination with a nature reserve; constructing a resistance surface indicator system, and obtaining a disaster susceptibility distribution result by using geological disaster distribution point data to correct a resistance surface, to thereby obtain a real resistance surface; importing data of the ecological source land and data of the real resistance surface into LINKAGE MAPPER to generate an ecological corridor; constructing an evaluation system of the optimal corridor width based on three aspects of cost-function-ecological benefits, and evaluating the ecological corridor by using an IEW-TOPSIS model to obtain the optimal corridor width of the ecological corridor. The method can compare and identify the corridor width most suitable for construction, and provide reference base for corridor construction.
Owner:CHENGDU UNIVERSITY OF TECHNOLOGY +1

Laptop screen part

1. Name of the product of this design: the screen part of a laptop computer. 2. Purpose of the product of this design: The entire design is used for a laptop computer, and the part to be protected is used for the screen of the laptop computer. 3. The key design point of this design product lies in the shape expressed by non-dotted lines. 4. The picture or photo that best illustrates the key points of the design: Design 1 Stereoscopic drawing 1. 5. Designate Design 1 as the base design. 6. Other situations that need to be explained Other explanations: The dotted parts in each design are the contents that do not need to be protected. The dotted lines in each design are the dividing lines between the protected area and the unprotected area, and are not inherent lines on the product.
Owner:LENOVO (BEIJING) LTD

Submarine observation network power supply system protection method based on traveling wave extreme value time

The invention discloses a submarine observation network power supply system protection method based on traveling wave extreme value time, and relates to the technical field of submarine power grid protection, and the method comprises the steps: determining the layout position of a protection device according to a network structure, a power supply path and node importance, and dividing a system into protection regions defined by adjacent protection devices; voltage signals are collected in real time, first-order differential processing is carried out, and fault occurrence is judged by comparing the voltage change rate with a preset threshold value; recording current traveling wave data before and after the fault and carrying out Gaussian filtering noise reduction; calculating the extreme value time of the traveling wave by using a differential gradient algorithm; comparing the time difference of traveling wave extreme values on two sides of the protection area to judge the fault direction; judging a fault area in combination with the extreme time and a preset threshold value; and when the forward direction criterion and the intra-region criterion are met at the same time, a protection action is triggered. The method has the advantages that high-reliability fault positioning and rapid isolation can still be achieved under the communication failure scene, and the problem of remote fault and high-resistance fault recognition is effectively solved.
Owner:SHANGHAI JIAOTONG UNIV

Active lightning protection system and use method thereof

InactiveCN119308807Areduce flash densityThe concept of reducing lightning protectionCurrent/voltage measurementCircuit arrangementsDirect lightning strikeElectrical field strength
The invention discloses an active lightning protection system and a use method thereof. According to the invention, lightning arresting prevention instead of lightning attraction in a local area is taken as a guiding idea, and the lightning arresting device can interact with the cascade leader of lightning, so that induced charges of a blade in a protected area are neutralized with heteropolar charges at the far end of the blade by using ground charges through the device; therefore, the inductive charge constraint of the near-thunder cloud is reduced, and the thunder and lightning can overflow to the cascade pilot of thunder and lightning in time, and the cascade pilot is neutralized. The electric charges in the air tend to be homogenized, so that the intensity of an electric field above a protected object cannot reach a numerical value of air breakdown, a main discharge channel of thunder and lightning is changed, the occurrence of ground-to-ground lightning return stroke discharge in a protection area is effectively prevented, direct lightning is avoided in the protection area, and the ground-to-ground lightning density in the protected area is greatly reduced. Therefore, the method thoroughly changes the traditional fan lightning protection concept, is applied to the field of wind power, and can effectively reduce the damage of blades and a control system caused by lightning stroke.
Owner:SICHUAN AOLING COMM ENG

Country residential area automatic layout method based on shape grammar and multi-objective optimization

ActiveCN121279065AGeometric CADData processing applicationsRural settlementFarmland protection
The invention discloses a rural residential area automatic layout method based on shape grammar and multi-objective optimization, and the method comprises the steps: firstly constructing a rasterized construction cost surface based on the slope data of a research area, a basic farmland protection area vector and an ecological protection red line vector, and then constructing a rasterized construction cost surface based on a traditional residential building sample library and survey data; a shape grammar rule base including a building foundation, courtyard topology, residence number configuration, style and feature control and public service facility coverage is constructed, rule parameters are iteratively optimized by taking a land intensification degree, an ecological interference degree, a style and feature coordination degree and a service coverage degree as optimization targets, an optimal solution set is obtained, and finally, a construction cost surface is taken as a guidance, so that the construction cost is optimized. Performing layout generation in the low-cost constructable area according to the optimal solution generation; according to the technical scheme provided by the invention, a high-implementability rural residential area layout scheme with intensive land utilization, ecological protection and regional style and appearance coordination can be generated under various natural and policy constraint conditions, and the layout generation efficiency is improved.
Owner:INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS

System having a sensor and a method for monitoring a plurality of protected zones

A method and a system have at least one sensor for monitoring a plurality of protected zones for infringement by at least one object. A controller controls a plant to be safeguarded having a mechanically movable part, having the sensor for the at least planar monitoring of the protected zones by a control and evaluation unit for evaluating. The received signals of the sensor determine which of the protected zones has been infringed by the object and which protected zone the object has left. The controller generates and outputs a switch signal that is a release signal for the release of the plant operation. The mechanically movable part is either in a first working zone or in a second working zone, with the first working zone and the second working zone each being associated with a first protected zone and a second protected zone, respectively.
Owner:SICK AG