232 results about "Rainfall simulation" patented technology

The present disclosure relates to the technical field of landslide hazard model tests, and in particular to a landslide model test method and device for realizing multi-variable synchronous monitoring. In the test device, a soil slope simulation unit is configured to pile up a soil slope and simulate different inclinations of the slope. A rainfall simulation unit is configured to simulate rainfall of different intensities and induce a landslide. A runoff-seepage separation unit is configured to realize separation of runoff from seepage of the slope under the effect of rainfall. A monitoring module is configured to monitor runoff and seepage flow rates of the slope, changes in water content and pore water pressure within the slope, and a morphological change of the slope under the effect of rainfall, to obtain a mechanism of rainfall-induced landslide deformation and damage based on changes in the flow rate.

The invention relates to the technical field of computer simulation, in particular to an earth surface two-dimensional calculation method based on a cellular automaton, which comprises the following steps of: analyzing topographic data of a plurality of areas based on topographic data acquisition records, recording elevation and gradient, processing the topographic data by using the cellular automaton, constructing a topographic model, and calculating the topographic model by using the cellular automaton. And obtaining regional terrain information. According to the method, through terrain data acquisition and terrain model construction, the basic data quality of the model is improved, accurate input data is provided for simulation, a key position is identified, the size and distribution of cells are adjusted, the simulation resolution of a key area is optimized, the local precision of simulation is improved, and the consumption of computing resources is reduced; the rainfall simulation parameters are adjusted according to the actual meteorological data, the prediction reliability is enhanced, the erosion effect and anti-erosion ability of various areas are evaluated by simulating soil erosion and surface runoff, and the prediction accuracy and practicability of surface two-dimensional calculation are improved.

The invention provides an urban rainfall emergency processing method and system, and relates to the technical field of rainfall disaster emergency processing, and the method comprises the steps: obtaining historical urban rainfall data and drainage information, and generating an urban rainfall simulation model through the three-dimensional modeling and rainfall simulation technology; furthermore, a disaster tree model is constructed in combination with a machine learning algorithm and a fault tree analysis method, and association and influence relationships of historical rainfall disasters are identified. And based on the disaster template data and a preset historical emergency processing scheme, systematically analyzing and optimizing a disaster prediction model, and realizing real-time prediction of disaster information and generation of the emergency processing scheme. An emergency processing scheme is optimized by adopting a simulated annealing algorithm, and optimal response under different disaster levels is ensured. Through multi-level data analysis and algorithm optimization, the accuracy and efficiency of emergency response are improved, and the occurrence probability and loss of disasters such as urban waterlogging are reduced.

The invention relates to the technical field of side slope erosion, and discloses a method for detecting the influence of salt crust on side slope erosion, which comprises the following steps: collecting soil data, salt crust data and physical crust data of a side slope to be detected, and constructing a side slope simulation device; constructing a rainfall erosion simulation device; the rainfall erosion simulation device is used for carrying out rainfall simulation on the slope simulation device, crust monitoring data in the rainfall simulation process are obtained, when the crust monitoring data reach physical crust data, recording points are set, the corresponding initial rainfall duration is obtained, runoff collection data are obtained after rainfall simulation is stopped, and the runoff collection data are stored in the slope simulation device. And determining an erosion modulus according to the runoff collection data, and establishing a correlation model of the influence of the salt crust on the slope erosion based on the erosion modulus. By comprehensively considering the influence of salt crust and physical crust on slope erosion, the erosion process of the slope under the actual rainfall condition can be simulated more accurately.

The invention provides a modular and multifunctional karst collapse physical simulation experiment platform. Comprising a rigid frame, a bearing device, a moving device, a loading device, a lifting device, a pile foundation construction dynamic load simulation device, a ground traveling dynamic load simulation device, a rainfall simulation device, a computer vision monitoring device, an underground water pumping and draining simulation device and an underground space excavation disturbance simulation device. The moving device is arranged on the bearing device, the lifting device, the loading device and the pile foundation construction dynamic load simulation device are arranged on the moving device, the travelling crane dynamic load simulation device is connected with a traction device of the moving trolley, and the camera shooting monitoring device and the rainfall simulation device are arranged on the rigid frame through a support. According to the method, key disaster-causing conditions in the urban environment are fully considered, the working condition scene coverage is wide, and the applicability is high; modularized design is adopted as a whole, all the modules can be flexibly loaded according to requirements, the real environment can be simulated more truly, and the catastrophe evolution process of surface collapse can be reproduced.

The utility model provides a rainy day simulation device and a test vehicle, and belongs to the technical field of vehicle test. The rainy day simulation equipment is arranged on a vehicle, the rainy day simulation equipment comprises a water storage tank, a water pump, a spraying device and a moving mechanism, the moving mechanism and the spraying device are both installed outside the vehicle, the spraying device is connected with the water storage tank through a water conveying pipeline, the spraying device is rotatably arranged on the moving mechanism, and the water pump is connected with the water storage tank. The water pump is used for conveying water stored in the water storage tank to the spraying device, and the moving mechanism is used for driving the spraying device to move. Compared with the prior art in which a tunnel with a long distance needs to be selected to independently establish a rainfall simulation system, the rainy day simulation equipment provided by the embodiment of the utility model can be directly installed on the vehicle, is not limited by places, is more convenient to use, and reduces the manpower and material resource cost required by construction at a specific place.

The invention discloses an active anti-floating drainage model test device and test method considering saturation change, and belongs to the technical field of active anti-floating of buildings. The test device comprises a boundary model box, a building model box, a plurality of pore pressure sensors, a plurality of dielectric constant sensors, a pressure limiting drainage pipe for simulating active anti-floating equipment in an actual building, a water head control device and a rainfall simulation device, and can simulate a seepage field of an underground space under the condition of active anti-floating measures during rainfall. The drainage condition of the underground space under the condition is reproduced; the pore pressure sensor and the dielectric constant sensor monitor the saturation change of the soil body in real time, the vacancy of the existing test device in the saturation change factor of the soil body is filled up, the drainage condition of the active anti-floating measure and the seepage law of the soil body in the unsaturated-saturated transition process of the soil body under different rainfall and different stratum conditions can be demonstrated, and the test device has a wide application prospect. Scientific basis and data support are provided for optimization application of active anti-floating measures under different saturation working conditions.

The invention discloses a hydrothermal salt migration determination test device and method for simulating an external environment, and the device comprises a constant temperature box which is used for providing a constant temperature test environment; the rainfall simulation device is arranged at the top of the constant-temperature box and used for simulating an external rainfall environment, and the rainfall simulation device controls the rainfall capacity, the rainfall speed and the rainfall duration through an external controller; the soil column model device is arranged on the inner side of the constant-temperature box and used for containing a test soil sample, a soil column model is arranged in the soil column model device and serves as the test soil sample, a heat preservation layer is arranged on the outer surface of the soil column model, and a glass cover covers the outer side of the soil column model in an attached mode. By integrating the rainfall simulation device, the solar radiation simulation device and the water level simulation device, comprehensive simulation of various external environment factors is realized, the limitation that only a single environment factor can be simulated in the prior art is overcome, the test condition is closer to the actual engineering environment, and the test efficiency is improved. And the reliability and the practical value of a test result are improved.

The invention discloses a black soil erosion simulation system with rainfall runoff and snow melting confluence coupling effect. The system comprises a data acquisition system, a rainfall simulation system, a snow melting simulation system, a runoff collection and monitoring system, a black soil simulation area, a data processing and analysis system and a control system. The data acquisition module comprehensively collects various types of data of the black soil area; each simulation subsystem accurately simulates rainfall, snow melting and coupling processes; the runoff collecting and monitoring subsystem monitors runoff in real time; the black soil simulation area simulates the field condition; the data processing and analysis module deeply mines data, establishes a model and predicts a trend; and the control system realizes automatic accurate control. The whole system adopts a modular design and is convenient to maintain and upgrade. The operation, system flow, maintenance upgrading and application cases of each module are elaborated through a specific implementation mode, a powerful tool is provided for black soil erosion research, and a scientific basis is provided for making prevention and control measures.

The invention provides a roadbed performance test platform under the rainfall and load coupling effect and a use method, and aims to solve the problem that a roadbed test platform in the prior art cannot perform time-space observation and performance comparison on the same or different roadbed materials under the difference of rainfall and traffic load. Comprising a roadbed simulation mechanism, an operation simulation device, a rainfall simulation mechanism and a crushing device, the operation simulation mechanism is installed on the roadbed simulation mechanism to simulate vehicle operation, the rainfall simulation mechanism is installed above the roadbed simulation mechanism to simulate natural rainfall, and the crushing device is installed above the roadbed simulation mechanism to crush a fan-shaped roadbed after a test is completed. According to the invention, the same or different roadbed materials can be subjected to time-space observation and performance comparison under the difference of rainfall and traffic load, and the roadbed materials subjected to the test can be quickly crushed for repeated test, so that the test period is greatly shortened.

The invention belongs to the field of water and soil loss monitoring, and particularly relates to a monitoring and collecting system and method for simulating karst slope rainfall and water and soil leakage. By arranging the karst slope rainfall simulation device, monitoring and collection of water and soil leakage erosion after rainfall and mastering of water and soil physical and chemical shapes and dynamic change characteristics are achieved. A plurality of soil seams can be sequentially excavated in a staggered mode according to the layer position or the depth from top to bottom along the soil layer section of the karst slope, a winnowing pan type water collecting hopper or a Luoyang shovel type water collecting hopper and a tipping bucket type flow meter connected with the winnowing pan type water collecting hopper or the Luoyang shovel type water collecting hopper are embedded, and the purposes of simultaneous monitoring and sample collection in multiple layer positions, multiple depths and stone seam fractures of the soil layer are achieved. The problem of simultaneous monitoring and collection of karst slope rainfall and underground water and soil leakage is effectively solved.

The invention relates to the technical field of automatic driving vehicle testing, in particular to a rainfall adaptive simulation control method and system for automatic driving vehicle testing. The method comprises the following steps: executing an outdoor rainfall simulation process through control parameters, and collecting behavior information of an autonomous vehicle in the simulation process; constructing a target function according to the deviation between the behavior information and expected information and the control parameters; iterating the strategy parameters by adopting a reinforcement learning framework based on a strategy gradient method and taking minimization of the target function as a target to obtain optimal strategy parameters; obtaining an optimal control parameter according to the optimal strategy parameter and the current rainfall state; and under the optimal control parameters, evaluating the performance boundary of the automatic driving system in the rainfall environment according to the behavior information of the automatic driving vehicle. According to the invention, the rainfall simulation scene with high precision and strong controllability is constructed, and the performance boundary of the automatic driving system in the rainfall scene is explored.

The invention relates to a rainfall observation method and device, a computer system and a medium, and solves the problem of high-reliability observation of regional rainfall. The method comprises the following steps: firstly, adopting reanalysis data and earth system mode output data to construct a first deep learning model of satellite inversion rainfall so as to reconstruct a lattice long-series rainfall data set; then, taking the rainfall attenuation information of the historical period as input, obtaining a rainfall simulation series of the corresponding historical period through different rainfall attenuation and rainfall intensity models, determining regional rainfall under the different rainfall attenuation and rainfall intensity models through a weighted link method, and preferably selecting an optimal rainfall attenuation and rainfall intensity model through long-series lattice rainfall data of the historical period; furthermore, a second deep learning model is constructed by adopting satellite inversion data and rainfall data inverted by a rainfall attenuation and rainfall intensity model, real-time correction of regional precipitation is realized, finally, real-time rainfall information of the region is deduced by adopting the optimal rainfall attenuation and rainfall intensity model and taking a real-time mobile signal as input, and the regional average precipitation corrected in real time is obtained.

The invention provides an intelligent landslide rainfall simulation system and method based on AI historical rainfall data driving, and belongs to the technical field of geological disaster monitoring and early warning. Dynamic coupling analysis and high-precision simulation of the rainfall process and slope stability are realized through automatic fusion of multi-source monitoring data and spatial-temporal feature extraction in combination with deep learning and physical mechanism modeling. The system can sense various types of data such as rainfall, soil moisture content and slope deformation in real time, intelligently identify landslide induced risks, output graded early warning information and support digital twinborn and adaptive risk optimization decisions. The landslide disaster risk assessment and early warning accuracy and response timeliness are remarkably improved, and the method has good intelligence, expansibility and practical application value and is widely applied to the fields of geological disaster prevention and control and engineering safety monitoring.

The invention provides an ecological protection side slope hydraulic scouring simulation device, which belongs to the technical field of side slope ecological protection, and comprises a support frame, a side slope simulation device, a rainfall simulation device and a collection device, the slope simulation device is installed on the supporting frame, and the supporting frame can adjust the inclination angle of the slope simulation device. The rainfall simulation device is installed on the supporting frame and located above the slope simulation device. The collecting device is installed at the bottom of the slope simulation device and used for collecting silt and the like generated in the scouring simulation test. According to the invention, the inclination angle of the slope simulation device is adjusted through the support frame, the influence of an object on rainfall with different intensities under various gradients can be tested, the influence of runoff or preponderant flow is simulated through the water outlet of the water storage tank, the angle and size of the test slope are adjusted on the basis, and scouring tests under different conditions are carried out. And the effect of the multi-angle simulation experiment is improved.

The invention discloses a device and method for simulating the freezing and thawing cycle process of collapsible loess in the natural environment, and belongs to the technical field of geotechnical engineering.The device comprises a test box provided with a sample groove, a rainfall simulation system is arranged on the upper portion in the test box, an underground water seepage simulation system is arranged on the lower portion in the test box, and the sample groove is connected with a loading system; a weighing system is arranged at the bottom in the test box, the weighing system is connected with an underground water seepage simulation system, a settlement and internal damage monitoring system is arranged between the weighing system and the rainfall simulation system, and a freezing and thawing circulation system is arranged on the inner side wall of the test box. According to the invention, the natural environment of the loess plateau area can be simulated, and the strength change of the strong salinized soil in the dry-wet process can be tested and researched under the combined action of various factors such as rainfall, load, underground water seepage and freeze-thaw cycle.

The utility model relates to the technical field of rainfall simulation, in particular to an artificial rainfall simulation device which comprises a water supply system, a control system, an intelligent terminal system and an acquisition system. The water supply system comprises a water tank, a water pump, a water inlet pipe and a rainfall sprayer. The water pump is arranged on the water inlet pipe and used for pumping water in the water tank to the rainfall sprayer. A control valve is arranged on the rainfall spray head; the intelligent terminal system is used for man-machine interaction, communication with the control system is realized by connecting a local area network built by the system, and data of the intelligent terminal system can be timely transmitted to the control system; the acquisition system comprises a rain gauge and a pressure sensor. The pressure sensor is arranged on the water inlet pipe and used for collecting the pressure value of the water inlet pipe. And the rain gauge is arranged below the rainfall spray head and is used for collecting rainfall. The device has the effect of facilitating rainfall research by simulating artificial rainfall.

The invention discloses a slope soil erosion prediction method, system, equipment and medium, and relates to the technical field of soil erosion, and the method comprises the following steps: taking slope soil with different grain composition as a research object, and carrying out a rainfall simulation experiment; constructing a production and construction project soil erosion prediction model according to the product of a subrainfall erosivity factor, a soil erodibility factor, a slope length factor, a slope factor and a slope surface area on the basis of the grain composition characteristic particle size; and predicting the soil erosion of the slope surface of the to-be-predicted production and construction project through the production and construction project soil erosion prediction model. According to the model disclosed by the invention, a direct quantitative relationship between the characteristic particle size and the erosion strength is established, so that an acquisition way of the soil erodibility factor is simplified, the dependence of the model on complex and expensive soil physical and chemical parameter analysis is greatly reduced, and the operability and the popularization efficiency of the model in a production field are greatly enhanced.

The utility model belongs to the technical field of goaf tunnel rainfall equipment, and particularly relates to a test device for simulating rainfall infiltration of a goaf tunnel. Comprising a model box system used for simulating a goaf; the rainfall simulation system comprises spraying equipment and a water supply system, the spraying equipment is mounted above the model box system, and the water supply system supplies water to the spraying equipment; and the data acquisition system is used for acquiring various parameters in the model box system during rainfall simulation. According to the utility model, the magnitude and speed of rainfall can be controlled in real time through the flowmeter and the ball valve, and the uniformity of rainfall can be ensured through the spraying shower head, so that the effect of uniformly distributing moisture in a rock-soil body is achieved; and by prefabricating tunnel and goaf models, the size of the repeated test can be unified, and the influence of multiple variables on the test result is reduced.

The invention relates to the technical field of soil erosion and cadmium migration simulation experiments, in particular to a karst slope cropland soil erosion and cadmium migration simulation experiment device and method.The karst slope cropland soil erosion and cadmium migration simulation experiment method comprises the steps that a preset soil sample is placed on a soil erosion simulation platform, and environmental factors are adjusted according to experiment requirements; comprising terrain gradient, earth surface rock exposure rate, underground porosity and geological structure; starting a rainfall simulation system, performing rainfall simulation according to preset rainfall intensity, duration and mode, starting a data acquisition system at the same time, and monitoring and recording rainfall parameters in real time; in the rainfall process, soil erosion phenomena including earth surface / underground sediment yield, runoff yield and erosion rate are observed and recorded, and sediment samples are collected through a sediment collector; and performing cadmium concentration determination on the collected sediment sample and runoff sample by using a cadmium concentration analysis instrument, and recording data. And a coupling mechanism between the erosion process and cadmium migration can be more comprehensively understood.

The utility model provides a movable variable slope side slope water and soil monitoring device which comprises a movable variable slope side slope simulation device and a movable rainfall simulation device, and the movable variable slope side slope simulation device comprises a movable supporting base, an ecological slope protection structure layer and a variable slope control system arranged on the movable supporting base; the movable rainfall simulation device comprises a movable supporting platform and a rainfall simulation system arranged on the movable supporting platform. The movable variable-gradient side slope water and soil monitoring device can be suitable for various site conditions, can be used for carrying out in-situ simulation test on an exposed mountain side slope, and can also be used for carrying out model test indoors; the movable rainfall simulation device capable of being adjusted and disassembled can be used for carrying out rainfall tests on different water and soil monitoring devices, and meanwhile rainfall simulation can be more real and accurate by adjusting the metering mechanism.

The invention discloses an urban flood simulation and safety evaluation method, and belongs to the technical field of hydrological data processing and flood rehearsal. The method comprises the following steps: firstly, collecting DEM data of a to-be-processed range, performing projection depression filling preprocessing through ArcGIS software, calculating a flow direction and a flow rate, extracting a river network, and constructing a catchment area and a rainfall flood model; carrying out rainfall simulation and one-dimensional hydrodynamic force calculation by using SWMM software to obtain a river channel and node time sequence flow; then, the flow data are input into HEC-RAS software, two-dimensional hydrodynamic simulation is completed in combination with the terrain, and the flood inundation range and depth are obtained; finally, repeatedly simulating rainfall in different recurrence periods, and dividing flood risk areas according to indexes such as a water depth threshold value and a flooded area. According to the method, full-process automatic processing from rainfall input to flood routing is realized, the timeliness and precision of flood rehearsal are improved, and support is provided for disaster prevention and reduction decisions.

The invention discloses an experiment device and method for dangerous rock mass collapse induced by earthquake-excavation-acid rain coupling, and belongs to the technical field of geotechnical engineering simulation experiments, and the device comprises a counter-force supporting assembly, an earthquake dynamic disturbance simulation application assembly, an engineering excavation disturbance simulation application assembly and an acid rain corrosion and rainfall simulation assembly; the earthquake dynamic disturbance simulation applying assembly, the engineering excavation disturbance simulation applying assembly and the acid rain corrosion and rainfall simulation assembly are all arranged on the counter-force supporting assembly, and the slope dangerous rock mass model is located in the counter-force supporting assembly. The experimental device can simulate influence factors such as earthquakes, engineering excavation, acid rain corrosion, rainfall and river scouring, the influence factors can be combined at will to simulate the inoculation and induction process of dangerous rock mass collapse disasters under the coupling condition of the various influence factors, and an experimental conclusion is obtained on the basis. The method can reflect the inoculation and induction mechanism of the dangerous rock mass collapse disaster more truly, and provides technical support for the prediction and forecast of the dangerous rock mass collapse disaster.

The invention belongs to the technical field of geotechnical engineering disasters, and particularly relates to an intelligent rainfall simulation system and method for a slope stability experiment. The system comprises an intelligent rainfall simulation unit, a comprehensive monitoring unit, a real-time data fusion and adaptive control unit and a data analysis-visualization unit which are organically unified and matched with one another. According to the invention, intelligent control of the rainfall process can be realized, and the rainfall intensity, raindrop size and rainfall uniformity can be accurately adjusted; the system is high in integration level and high in automation degree, real-time multi-dimensional monitoring can be achieved, and high-precision and real-time analysis of experimental data and automatic risk early warning are achieved. Advanced monitoring means such as DIC full-field strain, optical fibers and acoustic emission are adopted, the experiment precision is remarkably improved, an accurate basis is provided for slope stability analysis and disaster prevention and control, and the method can be applied to the fields of engineering slope safety evaluation, education and public safety and has a good application prospect in the aspects of geological engineering, geotechnical engineering, colleges and scientific research and teaching, emergency drilling and science popularization and the like. And safety and disaster prevention awareness are improved.

The invention provides a test device for simulating a pollutant migration process under a temperature-moisture coupling effect, and belongs to the field of soil environment scientific research. The test device comprises variable-pressure gas supply equipment, a soil column pipe, exhaust equipment, a rainfall simulation system, evaporation and illumination simulation equipment and a data acquisition and analysis system. The variable-pressure gas supply equipment comprises a pollution gas storage tank and a pressure controller; the soil column pipe comprises an air inlet cavity, a simulated soil column cavity and an exhaust cavity, and a sampling hole is reserved in the simulated soil column cavity; the data acquisition and analysis equipment comprises a distributed optical fiber, a data acquisition instrument, a computer and a gas chromatograph. The test device and the test method provided by the invention can accurately control temperature and humidity, simulate rainfall, evaporation and illumination, are suitable for various soil types, record data in real time through a high-precision monitoring system, and reveal diffusion, convection and adsorption rules of gas in the soil.

The invention discloses a rainfall dynamic simulation and regulation method, and relates to the technical field of artificial rainfall management and control, and the method comprises the steps: recognizing a catalyzable cloud layer of a rainfall demand region through a convolutional neural network, and generating a plurality of candidate catalysis regions according to the catalyzable cloud layer; the processing end dynamically simulates the spatial distribution of natural precipitation and post-catalysis precipitation of each candidate catalytic area based on a WRF-Chem model, outputs a selection influence factor for each candidate catalytic area, analyzes the selection influence factor and position information of the candidate catalytic area through the upper layer of the double-layer engine framework, and obtains the spatial distribution of the post-catalysis precipitation; and outputting a catalytic area sorting table by utilizing a lower layer of the double-layer engine framework, selecting a corresponding number of catalytic area information according to a rainfall demand, importing the selected catalytic area information into a large database for scene matching, and outputting an optimal regulation and control strategy for each selected catalytic area based on a genetic algorithm. According to the regulation and control method, rainfall simulation is carried out on each candidate catalytic area, it is ensured that the optimal area is selected for rainfall enhancement operation, and the overall rainfall uniformity and efficiency are improved.

The invention relates to the technical field of soil body tests, in particular to a sectional type full-automatic soil column temperature control system and method based on soil body temperature control. The system comprises a temperature control module, a model cavity, a rainfall simulation module and a measurement module, the model cavity comprises a container, a blocking net and a soil column, drainage holes are formed in the bottom of the container, the blocking net is laid on the inner side of the bottom of the container, the container is filled with soil, the soil column is evenly divided into multiple layers of soil layer structures with the same thickness, and the contact faces between soil layers are stricken off. The container is provided with an overflow port at a position higher than a specified height of the surface of the soil column, the rainfall simulation module provides rainfall to the surface of the soil column, the measurement module is butted with the soil column and the overflow port to collect soil column data, and the temperature control module controls the temperature of the soil column. According to the device and the method, the aim of accurately controlling the temperature at different depths of the soil column is fulfilled, so that the requirement of researching the seepage characteristics of the plant-green soil covering layer under different temperature conditions is met.

The utility model discloses a new energy automobile working condition and environment simulation device, and relates to the technical field of new energy automobiles. Comprising a simulation workshop and a simulation mechanism arranged on the simulation workshop, the simulation mechanism comprises two groups of rainfall simulation parts, two xenon lamp sunlight simulators and a fan, each group of rainfall simulation parts are symmetrically arranged in the simulation workshop, and each xenon lamp sunlight simulator is installed at the position, close to the top edge, of the two sides of the outer wall of the simulation workshop. The fan is installed on one side of the outer wall of the simulation workshop. According to the new energy automobile working condition and environment simulation device, various actual environment conditions are simulated through the simulation mechanism, the performance of a new energy automobile under different environment conditions can be tested, the test efficiency and accuracy are improved, the waterproof performance of the new energy automobile can be tested through the rainfall simulation component, and the waterproof performance of the new energy automobile can be tested through the xenon lamp solar simulator. And the light condition in a real environment can be simulated so as to detect the anti-aging performance of the new energy automobile.

The invention relates to a physical model test device for landslide, in particular to a physical model test device for underground coal seam mining and freeze-thaw cycle induced slip, and belongs to the field of geological engineering. The experimental model comprises a rock mass and a coal seam, a kt plate is used for simulating the coal seam, and a small electric saw is operated to cut the kt plate so as to simulate coal seam mining; the freezing and thawing circulation system comprises a rainfall simulation system capable of adjusting rainfall and a temperature control system, the rock mass is saturated with water through rainfall, then freezing is formed after 6 h of low temperature, then 6 h of high temperature unfreezing is conducted, and the freezing and thawing circulation is completed; the monitoring sensing system comprises a grating displacement monitor, a stress sensor, a three-dimensional scanning device and a temperature sensor. According to the invention, the freeze-thaw cycle process can be simulated truly.

The invention discloses a mechanical arm spraying parameter regulation and control system for artificial rainfall simulation, particularly relates to the technical field of agricultural irrigation control, and is used for solving the technical problems of water pressure self-adaption lagging and spraying parameter instability during alternate irrigation mode switching caused by pipeline extension and retraction of existing mechanical arm irrigation equipment. According to the system, by detecting the length variation of a telescopic water pipe of the mechanical arm and the real-time water pressure value of a water pipe inlet, the flow entropy yield space gradient and the turbulent flow energy dissipation rate are calculated to generate the water pressure compensation amount; regulating and controlling the water pump pressure based on the water pressure compensation amount, and synchronously analyzing a target spraying parameter combination of the alternate irrigation instruction; pressure compensation and parameter adjustment are executed in a linkage mode in the moving process of the mechanical arm, and kinetic energy distribution is collected through a water drop impact sensor array; when the kinetic energy distribution uniformity does not reach the standard, the entropy production and turbulence calculation logic is reversely corrected; precise and stable control over spraying parameters under dynamic operation is achieved, and the multi-area and multi-mode switching requirement is met.