13 results about "Spatial simulation" patented technology

The application provides a city economic level space simulation method and device, first, multiple source space data are acquired, the research area is divided into a plurality of sub-regions according to the spatial distribution characteristics of the city economic level, and a driving factor data set is constructed by taking a regular space unit as a basic simulation unit;Then, based on the historical city economic level total data, the total quantity constraint model of the city economic level evolution with time is constructed on the sub-region scale;Combined with the attribute information of the space unit, the city economic level grade change probability model of the space unit is established, and the probability of the city economic level grade change of each space unit in a given time stage is calculated;Under the total quantity constraint condition of the city economic level, the dynamic expansion mechanism of the city economic level grade system is introduced, and the city economic level grade of the space unit is distributed and updated;The simulation results of each sub-region are spatially integrated, so that the simulation results meet the overall scale total quantity constraint, so that the city economic level space simulation result is obtained.

This invention relates to the field of ecological environment assessment and spatial simulation technology, and discloses a method for grassland degradation ecological risk assessment based on a multi-agent model. The method includes a spatial risk assessment module that acquires multi-source basic data and divides it into discrete grid cells, calculating a landscape ecological risk index to generate spatial distribution results; a driving mechanism identification module that extracts driving factors to construct an improved regression tree model and outputs nonlinear response rules; and a multi-agent dynamic simulation module that constructs grassland environmental entities based on grid cells, injects risk indices and response rules, generates herder behavior entities, and inputs management policy parameters. Iterative calculations are performed using these two types of entities to simulate the dynamic process of herder relocation and resource consumption. After the iteration reaches the target year, the grid landscape attributes are reclassified according to the remaining grass cover, and the data is re-input into the assessment module for aggregation calculations, outputting a spatial distribution map to complete the evolution assessment. This invention can intuitively test the intervention effect of management policies on grassland degradation.

The application relates to a portable box for first-aid training, which comprises a box body and a box door, the front surface of the box door is provided with a first containing space, the box body is provided with a second containing space; a training host is operatively contained in the first containing space, the training host has a working state and a containing state, in the working state, the training host extends to a predetermined distance outside the first containing space; in the containing state, the training host is completely contained in the first containing space; a simulation person is contained in the second containing space; an AED training machine is contained in the second containing space or a containing groove arranged on the back surface of the box door; a camera module is installed on the front surface of the box door close to the top and can adjust the shooting angle within a predetermined range. The portable box is small in size, can better contain all the teaching equipment, is convenient for users to carry and is more convenient to use.

This invention provides a spatial simulation method for regional crop yield based on remote sensing water-carbon coupling processes. Driven by remotely sensed soil moisture data and multi-source meteorological data, this method constructs a coupled iterative framework of crop growth, remote sensing water-carbon coupling, and water balance modules. It achieves regional-scale spatial simulation of crop leaf area index, evapotranspiration, total primary productivity, and crop yield at a fixed time scale. The spatial distribution of crop yield is obtained by cumulatively calculating total primary productivity over the crop's growth period. This invention does not rely on field sample data, can reflect spatial differences in crop yield within a region, and is suitable for regional agricultural productivity assessment and agricultural drought impact analysis.

The application provides a rehabilitation training system, which can be applied to the technical field of intelligent rehabilitation. The rehabilitation training system comprises: a weight reduction device, which reduces the stress of the lower limbs of a target object on a motion assisting device in response to a control instruction from a master control module; a powered exoskeleton, which adjusts the motion assisting strength of the target object in response to a control instruction from the master control module; a human-computer interaction module, which adjusts a three-dimensional space simulation environment in response to a control instruction from the master control module; and the master control module, which is used for: determining an initial training strategy based on a rehabilitation stage currently experienced by the target object and a first bioelectric signal collected at a preset body part of the target object; determining a rehabilitation training state of the target object based on a second bioelectric signal collected in real time from the target object during rehabilitation training based on the initial training strategy; and adjusting the initial training strategy to obtain a target training strategy in the case where the rehabilitation training state reaches a preset rehabilitation training state.

Automated scaling-related operations may be performed dynamically during execution of a spatial simulation. A spatial partition may be locally reassigned, based on application workload information, from a first application to a second application on the same worker. A quantity of applications on a worker may also be changed during execution of a spatial simulation. A parent spatial partition may be split into child spatial partitions, and child partitions may also be merged back into a common parent partition. Indications of partition splits and merges on each of a plurality of workers may be reported to the plurality of workers. A spatial partition may also be remotely reassigned from a first worker to a second worker, such as based on worker-level resource consumption information and partition information. A quantity of workers that are used to implement a spatial simulation may also be changed during execution of the spatial simulation.

The application belongs to the technical field of land use planning and ecological environment protection, more specifically, relates to a land use scenario simulation method and system for ecological function improvement, through obtaining land use and driving factor data of a study area, dynamically evaluating habitat quality and analyzing spatio-temporal evolution characteristics; eliminating redundant collinear factors, accurately identifying key driving factors and their influence thresholds through multi-model coupling, solving the problems of core driving selection and quantitative constraint deficiency; then converting the thresholds into spatial ecological constraints, combining with regional policies to build differentiated land use scenarios, substituting into the calibrated spatial simulation model to predict future land use patterns; finally, calculating future habitat quality, positioning ecological risk areas, coupling ecological background grade to delimit control zones and develop differentiated management strategies, forming a complete optimization scheme; perfecting the connection between simulation results and land space governance, and forming a land use pattern optimization scheme for ecological function improvement.

This invention discloses a method for optimizing agricultural spatial layout to synergistically enhance ecological and production benefits. The method includes: data collection and processing, assessment of ecosystem service and economic value, construction of a multi-objective quantitative optimization model, construction of spatial optimization rules, spatial pattern optimization based on cellular automata (CA), scenario simulation, and scheme evaluation. This invention combines quantitative and spatial optimization, overcoming the blind spots of traditional experience-based layouts and providing a systematic and scientific decision support method for industrial spatial layout. This invention fully considers the topographic heterogeneity and industrial compatibility of ecologically vulnerable areas such as karst regions, and the optimization rules are rationally designed with strong local adaptability. The spatial simulation results based on the CA model are intuitive and visual, facilitating planners' understanding and application. The optimized layout scheme can be directly used to guide actual production.

The application discloses an experimental device based on an underground water storage and drainage space of a pit bottom of an open coal mine, and belongs to the technical field of open mine mining hydrogeological engineering and indoor simulation. The device comprises a sand box main body, an underground water simulation system, a rainfall simulation system, an underground water storage and drainage space simulation structure and a monitoring and drainage control system. The first and second high water head water tanks and the first and second low water head water tanks are used for simulating and controlling underground water flow, and an adjustable shower is used for simulating rainfall. The simulation structure is internally provided with a concrete anti-seepage wall, wherein a filter layer and a water storage medium are filled from bottom to top, a water diversion channel is arranged at the bottom, and a water pumping filter pipe penetrating through the anti-seepage wall and extending into the water storage medium is arranged at the upper portion. The application can accurately simulate complex working conditions coupled by multiple factors, realize synchronous monitoring of multiple parameters such as seepage and water level, provide reliable experimental basis for medium selection, structure optimization and drainage scheme making of the underground water storage and drainage space, and effectively guide engineering practice.

This invention discloses a space-simulated environment variable-temperature photothermal performance testing device based on steady-state calorimetry: the outer layer of the experimental chamber is a vacuum chamber, and the inner layer is a cryogenic chamber, with gas communication between the vacuum chamber and the cryogenic chamber; before testing, the cryogenic chamber is cooled by a cooling device, and the interior of the experimental chamber is evacuated to a vacuum state by a suction device, so that the interior of the experimental chamber meets the testing environment. A sample installation and adjustment unit is used to install and fix the sample to be tested in the cryogenic chamber. A temperature control unit is used to change the temperature of the sample to be tested. A solar radiation simulation unit is used to simulate sunlight irradiation. When the sample to be tested reaches the preset temperature, the data processing unit records the corresponding vacuum level and the output power of the temperature control unit, and calculates the emissivity of the sample to be tested by combining parameters such as the temperature inside the cryogenic chamber and the radiative area of ​​the sample. This invention achieves continuous and simultaneous measurement of full-spectrum hemispherical infrared emissivity and solar absorptivity from 150K to 450K, with a large temperature range and high measurement accuracy.

The application discloses a method and system for realizing integration of geological modeling and stress field simulation, and belongs to the technical field of geological exploration and development. The method comprises the following steps: project setting and data loading, seismic interpretation and attribute analysis, structural modeling, discrete fracture network modeling and stress field simulation. The application takes a three-dimensional structural model as a unified carrier, takes stratum boundaries, fracture distribution and stratum layering as basic constraints of mechanical modeling, realizes complete matching of a geological framework and a mechanical model grid and a spatial range, adopts a fracture distance constraint and a variogram hierarchical control coupling method, distinguishes a main fracture, a secondary fracture and a surrounding rock area, sets different interpolation rules, takes lithology and a tectonic deformation zone as partition constraints, and completes spatial simulation of mechanical parameters under geological recognition constraints. The structural model provides a spatial boundary for mechanical attribute modeling, and mechanical parameter inversion results feed back and correct the geological model, so that two-way data transmission and collaborative constraints are formed.