83 results about "High altitude environment" patented technology

The invention discloses an intelligent response method for an arc fault of a high-altitude switch cabinet, relates to the technical field of safety protection of power equipment in a high-altitude area, and aims to solve the problems that the arc time of the arc fault is prolonged, the pressure in the cabinet is sharply increased, a traditional disposable pressure relief device cannot be reset and is lack of insulation state evaluation, and the reliability is poor. The invention aims to provide a response method which combines optical signal and pressure double-criterion detection, resettable pressure relief, gas component analysis and intelligent decision so as to improve the safety and reliability of the switch cabinet.

The invention discloses a multi-target intelligent optimization method and system for blasting parameters of a strip mine in a high-altitude cold region. The method comprises the following steps: carrying out data acquisition to obtain a parameter data set; performing data preprocessing on the parameter data set to obtain a feature sample set; constructing an initial blasting parameter model based on a machine learning algorithm, and performing hyper-parameter optimization on the model to obtain a blasting parameter model; a multi-objective optimization function is constructed: based on the multi-objective optimization function and the blasting parameter model, solving is carried out in combination with environmental condition constraints, and a pareto optimal solution set is obtained; according to the pareto optimal solution set, a representative solution is selected, a visual scheme is generated, and blasting parameter optimization of the strip mine in the high-altitude cold region is completed. According to the method, temperature, oxygen and frozen soil constraint conditions of the high-cold and high-altitude environment are introduced, blasting safety, lumpiness uniformity and the explosive utilization rate are considered at the same time through multi-target collaborative optimization, the method can adapt to the extreme environment, meanwhile, the one-sidedness of single-target optimization is avoided, and the intelligent level of blasting design and implementation is greatly improved.

The invention discloses personal life support equipment in a high-altitude environment and a cooperative control method thereof, and relates to the technical field of personal life support equipment, and the equipment comprises a respiration sensor which is arranged on a mask and is used for detecting respiration frequency and phase; the blood oxygen and heart rate sensor is worn on the wrist of the user and used for detecting the blood oxygen saturation degree and the heart rate; the body temperature sensor is attached to the chest of the user and used for detecting the core body temperature; the automatic oxygen supply device is used for providing oxygen; the intelligent heating device comprises partition heating pieces attached to the chest and the four limbs of the user and is used for partition heating; the microcontroller unit is used for formulating an optimal life support strategy according to the sensor data and intelligently and cooperatively controlling the working states of the automatic oxygen supply device and the automatic heating device according to the optimal life support strategy; the sensor data comprises respiratory frequency and phase, oxyhemoglobin saturation, heart rate and core body temperature, and dynamic oxygen supply and body temperature adjustment can be cooperatively controlled.

The invention discloses a health assessment method, system and device for high-altitude power transformation equipment and a storage medium. The method comprises the following steps: acquiring multi-source monitoring data of power transformation equipment, and extracting a parameter value of each key parameter from the monitoring data; inputting the parameter value of each key parameter into a pre-trained degradation degree evaluation model to obtain a degradation degree evaluation value of each key parameter; determining an initial health assessment value of the power transformation equipment based on each relevancy between each key parameter and the performance degradation of the power transformation equipment and each degradation degree assessment value; determining an influence coefficient based on the altitude value of the geographic position of the power transformation equipment; and determining a health assessment value of the power transformation equipment based on an initial health assessment value and the influence coefficient. The physical mechanism constraint fused with the degradation degree evaluation model enables the degradation degree evaluation value determined based on the degradation degree evaluation model to be closer to the actual situation of the high-altitude environment, and improves the accuracy of health evaluation of the high-altitude power transformation equipment.

The invention relates to a high-altitude extra-high voltage transformer partial discharge test interference identification and suppression method, and belongs to the technical field of high-altitude region electrical equipment insulation state detection. In order to solve the technical problems that interference signals and real discharge signals are difficult to distinguish and the signal-to-noise ratio is low in the partial discharge test of the extra-high voltage transformer in the high-altitude environment, the method combines instantaneous zero-crossing density analysis and wavelet packet multi-scale feature extraction; according to the method, a multi-dimensional criterion fusing energy features, zero-crossing features, time-domain shape features and altitude correction factors is constructed, an adaptive interference discrimination rule is established, a frequency domain and time domain combined suppression strategy is adopted, various interference signals are effectively identified and suppressed, meanwhile, waveform and amplitude information of real partial discharge pulses is reserved to the maximum extent, and the suppression precision is improved. Therefore, the signal-to-noise ratio and the reliability of a partial discharge measurement result are remarkably improved, and key technical support is provided for accurate evaluation of the insulation state of the high-altitude extra-high voltage transformer.

The invention belongs to the field of intelligent inspection of power equipment, and particularly relates to a transformer substation unmanned aerial vehicle dual-light inspection route planning method. According to the method, original laser point cloud of substation equipment is simplified, an equipment semantic lattice diagram containing high-altitude environment attributes and equipment semantic tags is constructed, dual-light inspection constraint parameters, namely infrared temperature precision and visible light resolution, are analyzed, and a semantic-environment dual-constraint initial route is generated; and flight and dual-light equipment parameters are dynamically adjusted in combination with a high-altitude environment, and routing inspection coverage completeness and data qualification are ensured through semantic weight driven dynamic obstacle avoidance and dual-light data quality closed-loop verification. According to the method, the route coverage is larger than or equal to 99%, the dual-light data qualification rate is larger than or equal to 95%, the redundant route mileage is reduced by 30%, the method is adaptive to a high-altitude transformer substation suspension type porcelain insulator and composite insulator dual-light inspection scene, and high-quality data support is provided for joint detection of insulator infrared thermal defects and visible light surface defects.

The invention belongs to the technical field of traditional Chinese medicine compositions, and particularly relates to plant essential oil for relieving altitude stress and a preparation method thereof. According to the method, Tibetan medicine plants serve as core raw materials, active ingredients of the Tibetan medicine plants are completely reserved through a low-temperature smashing technology, and then the high-purity Tibetan medicine plant essential oil is accurately extracted through a supercritical CO2 extraction technology; then, according to efficacy suitability, Tibetan medicine plant essential oil is scientifically compounded with various selected plant essential oil, finally, the compound plant essential oil capable of effectively relieving acute altitude stress is researched and developed, component activity and practical efficacy are both considered, and a natural relieving scheme is provided for body discomfort in the altitude environment.

The invention discloses a protective coating suitable for rail transit in a high-altitude environment and a preparation method of the protective coating, and belongs to the technical field of functional materials, the coating adopts a unique five-layer composite structure design, and is prepared through precise layered coating and a specific curing process. The coating system has a synergistic effect, comprehensively overcomes multiple harsh factors such as high-altitude strong ultraviolet rays, geothermal water gushing, severe temperature change, sand wind erosion and corrosive media, and provides excellent weather resistance, impact resistance, long-acting corrosion resistance, firm adhesive force and electrical insulating property. The preparation process is high in controllability, the overall protection performance of the coating is remarkably superior to that of a traditional single-layer or three-layer coating, the service life of a vehicle in a high-altitude complex environment can be greatly prolonged, and the maintenance cost is reduced.

The application provides a high-efficiency foaming agent suitable for argillaceous porphyry copper ore in high-cold regions and a preparation method and application thereof. The high-efficiency foaming agent suitable for argillaceous porphyry copper ore in high-cold regions is composed of mixed alcohols, pine oil, sulfur-nitrogen esters, diesel oil, xanthate and a surfactant. The high-efficiency foaming agent suitable for argillaceous porphyry copper ore in high-cold regions is simple in preparation method, does not produce intermediate products, has low irritation, is friendly to the environment, has low dosage of the medicament compared with traditional single foaming agent, has stable foam properties, and can also assist in collecting some chalcopyrite, molybdenite and other sulfide ores. Within the range of the component allocation, the foaming agent can fully exert the synergistic effect of each component. In a high-altitude environment (altitude >= 3500m), the foaming capacity and foaming rate of the foaming agent are obviously superior to those of traditional foaming agents.

The invention discloses a roller compacted concrete composition adaptive to a high altitude environment and a preparation method thereof, and the roller compacted concrete composition comprises the following components in parts by mass: 60-100 parts of cement, 65-75 parts of fine aggregate, 100-120 parts of coarse aggregate, 10-20 parts of zeolite powder, 1-5 parts of dopamine hydrochloride, 5-15 parts of activated fiber, 0.2-0.4 part of aminated polystyrene microspheres, and 0.1-0.5 part of a carbodiimide cross-linking agent. And 1-2 parts of a water reducing agent. The problems of insufficient early strength, later shrinkage cracking and poor freezing resistance of concrete in a high-altitude environment are solved, a composite system of polydopamine modified zeolite and activated fibers optimizes pore distribution and a stress transfer path, the balance of early strength, crack resistance and durability is realized, and the early strength, crack resistance and durability of the concrete are improved. And a reliable concrete solution is provided for high-cold and high-altitude engineering.

The embodiment of the present disclosure provides a battery heat preservation device and system suitable for high-altitude pipeline valve chamber, which comprises a shell, a temperature control layer arranged on the inner wall side of the shell, a first heat preservation layer arranged on the side of the temperature control layer away from the shell, and a first heat reflection layer arranged on the surface of the first heat preservation layer away from the temperature control layer. In the present application, the first heat reflection layer is arranged between the inner wall of the shell and the temperature control layer, between the temperature control layer and the first heat preservation layer, and on the surface of the first heat preservation layer away from the temperature control layer, which can meet the requirements of low-temperature resistance, fire prevention, water resistance and other characteristics in high-altitude environment. Since the first heat reflection layer can reflect heat, it can maximize the transfer of heat to the entire shell, which is suitable for the characteristics of the battery working in a low-temperature environment.

This invention discloses a machine learning model integrating oral microbiome and clinical features and its application in predicting sarcopenia at high altitudes. The method targets high-altitude populations residing at altitudes >3500 meters, collecting oral microbiome 16S rRNA sequencing data, clinical features, and lifestyle data. Core predictive factors are selected through adaptive preprocessing and elastic network regularized regression, and a classification model is constructed using logistic regression. To address the sample imbalance problem in high-altitude areas, this scheme introduces a synthetic balanced sampling strategy based on target distribution doubling; simultaneously, Platt Scaling is used for two-layer probability calibration, combined with a dynamic threshold optimization mechanism based on F1-Score to improve discrimination accuracy. This invention is the first to integrate oral microbiome shaped by the high-altitude environment (such as…)… Selenomonas , Veillonella (etc.) are incorporated into the predictive model. Experiments show that the model achieves an AUC of 0.868 on the independent test set and has advantages such as being completely non-invasive, low-cost, and highly interpretable. This invention provides an efficient early screening program for sarcopenia in resource-scarce high-altitude areas.

The invention relates to the technical field of water conservancy and hydropower engineering, and discloses a high-altitude gravity dam freeze-thaw cycle finite element simulation method which comprises the following steps: S1, establishing a gravity dam finite element discrete model; s2, constructing a pore water phase change physical model according to the global environment parameters; s3, establishing a full-coupling control equation set according to the ice saturation; and S4, solving the full-coupling control equation set through a multi-physics field coupling strategy, and obtaining field variable data. According to the method, accurate physical modeling of high-altitude environmental factors is realized, and the fidelity of a simulation result under a specific regional condition is greatly improved; a more complete multi-physical field coupling frame is constructed, and the internal mechanism of concrete performance degradation under the freezing and thawing effect is accurately captured; refined panoramic information of the internal state of the structure is provided, and the high-resolution data provides a scientific basis for deep understanding of a damage mechanism of the gravity dam, quantitative evaluation of the structure safety, prediction of the service life and formulation of a maintenance and reinforcement strategy.

The application provides a kind of energy storage battery state monitoring method and system for high-cold high-altitude environment, innovatively constructs multi-scale physical constraint framework: through the hollow convolution network with time sequence perception ability, multi-dimensional features are extracted, and the physical information of the initial state of the battery is fused;Embedding the inherent physical law constraint of the battery in the feature space, including forced charge conservation, health state one-way attenuation and temperature and pressure adaptive stability control;Design a special compensation mechanism for extreme environments, achieve accurate state estimation by dynamically correcting low-temperature diffusion behavior, and establish a multi-condition cooperative triggering lithium analysis safety warning. Adopting a calibration-free training strategy, only a small amount of boundary data is required to complete model optimization, combined with plateau environment data enhancement to improve adaptability. After light processing, it can run on a resource-limited embedded platform. In the high-cold low-pressure working condition, it effectively solves the core industry problems such as insufficient adaptability in extreme environment, inaccurate physical law and limited hardware deployment.

This utility model discloses a fresh air conditioning system for a high-altitude environment simulation laboratory, comprising: a fresh air unit with its fresh air duct connected to the side wall of the high-altitude environment simulation laboratory; a fresh air shut-off valve installed on the fresh air duct; and a pressure sensor arranged within the high-altitude environment simulation laboratory, which triggers an electrical signal when the pressure reaches different specified thresholds, causing the fresh air shut-off valve to perform shut-off or open operation. This utility model can provide a wide range of altitude adjustment and can also avoid the danger to personnel safety caused by sudden pressure changes in the altitude chamber.

This invention discloses a low-temperature charging and insulation device for unmanned aerial vehicles (UAVs) in high-altitude areas, belonging to the field of UAV charging and protection technology. The device includes a charging module, an insulation module, an environmental monitoring module, a control module, and a power supply module. The charging module provides adaptive charging services for the UAV battery, the insulation module provides low-temperature protection and temperature maintenance for both the battery and the charging module, the environmental monitoring module collects high-altitude environmental and device operating parameters, the control module dynamically adjusts the charging and insulation strategies based on these parameters, and the power supply module provides stable power. This invention achieves precise control of charging parameters and insulation temperature through the synergistic effect of PID control algorithms, fuzzy PID algorithms, and Kalman filtering algorithms, effectively solving the problems of low charging efficiency, easy damage, and poor insulation effect of UAV batteries in low-temperature, low-pressure, and strong interference environments at high altitudes, and is compatible with different UAV models.

The invention discloses a motor train unit glass deformation measuring device and method for a high-altitude environment, and relates to the technical field of railway vehicles, and the device comprises a fixed support which is used for being fixedly connected with a motor train floor; the stay wire displacement sensor and the laser displacement sensor are arranged on the fixed bracket; the hardware module is used for converting analog signals obtained by monitoring of the stay wire displacement sensor and the laser displacement sensor into digital signals; the software module is used for receiving the digital signal converted by the hardware module and carrying out glass deformation analysis to obtain a glass displacement value; and the early warning information module is used for issuing early warning information when the glass displacement value is greater than a preset glass displacement threshold value. Based on the requirement of glass displacement measurement of the motor train unit in a high-altitude area, the difficulty in outer glass measurement is solved by utilizing the reflection characteristic of laser displacement, the relative displacement between the displacement sensor and the motor train is overcome through a special tool, the related limit value is analyzed and early warned in real time, and the actual requirement is met.

The invention discloses an intelligent coal mining system suitable for a high altitude environment and a control method thereof, the system comprises a coal mining machine, a hydraulic support and a scraper conveyor, and is provided with a sensing positioning module, a support supporting and detecting module, a redundancy communication module and a working face coordination control module. The sensing positioning module collects poses through a UWB base station / label and an IMU; the control method is executed by the coordination control module, and comprises the steps of performing Kalman filtering fusion on UWB and IMU data, establishing working face digital twinning, performing circulating rehearsal simulation on a coal mining process, generating a pre-control instruction, and issuing the pre-control instruction to a coal mining machine electric control system and a support controller, so as to realize large-dip-angle collaborative skid resistance, support tracking and conveyor alignment deviation correction. The redundant communication module adopts an industrial Ethernet ring network main use and a 4G wireless standby use and is automatically switched; and meanwhile, hydraulic action delay is compensated based on air pressure and temperature, and the operation reliability under the high-altitude and low-temperature working conditions is improved.

The invention discloses an antelope migration trajectory tracking and emergency risk avoiding system in a Qinling Mountain high-altitude environment. The system is composed of a wearable sensing unit, an edge calculation and self-adaptive sampling module, a non-uniform space-time gridding trajectory modeling unit, a risk field calculation and risk avoiding decision engine, a multi-channel low-duty-ratio communication and disaster recovery link, an emergency risk avoiding execution and linkage module and an operation and maintenance and safety audit module. By introducing a non-uniform space-time grid, risk field-velocity field coupling, a self-adaptive sampling frequency function, multi-channel link self-adaptive switching and an emergency risk avoiding instruction sequence, high-precision reconstruction of an antelope migration trajectory and dynamic generation of a risk avoiding path under a high-altitude complex terrain are realized; and the availability and the security of the system are kept in a communication limited scene.

The invention discloses a self-adaptive battery heat preservation system for a plateau environment, and relates to the technical field of battery heat preservation systems. Comprising a temperature monitoring module, an intelligent control module, a heating module and a heat dissipation adjusting module. Wherein the temperature monitoring module comprises a sensor integration unit, and the sensor integration unit is used for detecting battery information in real time; the data processing unit is used for preprocessing the information acquired by the sensor integration unit; and the data transmission unit is used for realizing data transmission based on a data transmission channel constructed by the controller local area network bus. According to the invention, the sensing and identifying unit integrating specific plateau environment parameters such as air temperature, humidity and air pressure is combined with a battery state to dynamically predict a power demand change trend, so that active thermal management strategy adjustment is realized, and severe temperature fluctuation and low-pressure environment in a plateau area are effectively handled.

The utility model discloses a vacuum circuit breaker with high altitude environment adaptability, which relates to the technical field of vacuum circuit breakers and comprises a mechanism box, a first square groove is arranged on one side of the mechanism box, an air supply box is fixedly connected in the first square groove, a second square groove is arranged on the other side of the mechanism box, and the air supply box is fixedly connected in the second square groove. An air outlet box is fixedly connected into the second square groove, air holes are formed in the sides, close to each other, of the air supply box and the air outlet box, the air supply box and the air outlet box are matched through a circulation assembly, and the circulation assembly comprises a first air pipe, an equipment box, a second air pipe, a conveying device and a third air pipe; the equipment box and the conveying device are fixedly connected to the outer wall of the mechanism box. According to the vacuum circuit breaker with the high-altitude environment adaptability, through the arrangement of the air supply box, the air outlet box, the circulation assembly and other structures, drying airflow is formed in the mechanism box, water vapor is rapidly sucked in time, the use efficiency of the vacuum circuit breaker is improved, and therefore the vacuum circuit breaker has the high-altitude environment adaptability.

The invention relates to the technical field of hydropower engineering construction, in particular to an anti-seepage construction method for a diversion tunnel of a high-altitude hydropower station. According to the method, a temperature compensation mechanism under a high-altitude environment, a material curing regulation and control technology under low air pressure and an environment parameter dynamic monitoring system are introduced, meanwhile, a multi-component composite anti-seepage material system is adopted, and technologies such as surface pretreatment, deep grouting and interface reinforcing agent coating are combined; a real-time data acquisition and intelligent construction control platform is constructed by combining various monitoring devices such as a displacement sensor, a pore water pressure gauge and an ultrasonic compactness detector, so that the seepage-proofing construction process can stably adapt to complex conditions such as high altitude, low air temperature and low air pressure, the overall construction quality and reliability are greatly improved, and the construction cost is reduced. And the long-term anti-seepage effect of high strength, high toughness, freeze thawing resistance and water pressure impact resistance is achieved.

The invention discloses a mountain wind power global wind resource assessment method. The method comprises the following steps: acquiring topographic data and constructing a mountain wind speed vertical gradient reasonable interval; troubleshooting and eliminating an unsuitable area, and marking a risk early warning area; deploying a high-frequency unmanned aerial vehicle cluster and an encrypted micro sensor; long-term dynamic monitoring is carried out, monitoring data are verified, and seasonal special monitoring is synchronously implemented; performing preliminary screening on the wind resource candidate point locations in the monitoring area; performing secondary screening on the wind resource primary screening point locations through wake flow interference checking and construction cost evaluation to form a plurality of candidate point locations; constructing a terrain and weather coupling interpolation model, and inputting monitoring data for interpolation to generate a high-resolution global wind resource map; turbulence influence quantification and high-altitude environment correction are carried out based on a global wind resource map, and candidate point locations are graded through a comprehensive scoring system; and determining the number of installation point locations and the optimal installation point location. According to the evaluation method, the arrangement of an anemometer tower can be canceled, and the evaluation of wind resources in each region of the project is realized.

This invention discloses an auxiliary control component for oxygen concentration in an environmental simulation human metabolic chamber. The chamber's air inlet passage, arranged in the direction of fresh air inflow, includes a first filter, a first buffer chamber, an oxygen scrubber, and a second buffer chamber. The component includes a pressurization box positioned between the second buffer chamber and the human metabolic chamber chamber. The pressurization box's inlet connects to the second buffer chamber, and its outlet connects to the human metabolic chamber chamber. The pressurization box pressurizes the low-oxygen air (with reduced oxygen concentration) output from the second buffer chamber for high-altitude environment simulation and then inputs it into the human metabolic chamber chamber. This invention achieves precise control of oxygen concentration within the human metabolic chamber to achieve the purpose of high-altitude environment simulation.

The invention discloses an intelligent power supply control system and method for an aircraft, and relates to the field of power supplies, and the system comprises a power supply voltage stabilization module which is used for stabilizing the voltage of an introduced main power supply, and the stabilized main power supply supplies power to a post-stage circuit and a standby battery working module; the standby battery working module is used for charging and storing energy when the main power supply supplies power, and supplying power to a post-stage circuit when the main power supply is insufficient in power supply or has an electric leakage risk; compared with the prior art, the system has the beneficial effects that the standby battery working module and the electric leakage monitoring control module are intelligently linked, and when the high-altitude insulation degradation causes the electric leakage risk of the power supply of the main power supply, the standby battery with lower voltage is automatically switched to supply power, so that the leakage current is reduced, and the high-altitude electric leakage problem is relieved; the power supply safety and reliability of the aircraft in a high-altitude environment are improved, and an innovative self-adaptive protection strategy is provided for an aircraft power supply system.

The invention relates to the technical field of electric power, and discloses a synchronous positioning and map construction method suitable for high-altitude electric power inspection, which comprises the following steps: constructing the position attitude and environmental map characteristics of an inspection robot into a joint state vector, and performing recursive estimation based on extended Kalman filtering; obtaining the observed quantity of each sensor and carrying out weighted fusion on the observed quantity to obtain a fusion observation result; introducing an adaptive noise estimation model, wherein the estimation model adjusts a covariance matrix of state noise and observation noise of extended Kalman filtering according to the observation error and the prediction error; evaluating an uncertain area in the map according to the updated environment map features, and performing local optimization on the uncertain area according to the observed covariance matrix and the error between the observed value and the predicted value of the map features. The improved SLAM algorithm provided by the invention can adapt to a complex high-altitude environment by optimizing sensor data fusion, enhancing robustness and improving a map updating strategy.

The invention belongs to the technical field of oxygen production equipment, and discloses an indoor self-adaptive dispersion oxygen supply control method and a CFD simulation prediction method.According to the indoor self-adaptive dispersion oxygen supply control method and the CFD simulation prediction method, the oxygen content value of each indoor point in the current environment can be measured, the local oxygen content can be calculated, and the oxygen feeding amount can be calculated according to the target oxygen demand value and the actual space capacity; according to the indoor self-adaptive dispersion oxygen supply CFD simulation prediction method, a simplified model of a house can be constructed by utilizing three-dimensional modeling software, and a CFD control equation, a discretization method and a turbulence model are established; in simulation software ANSYS FLUENT, constructing a boundary condition and a component model of the three-dimensional model; setting solving control parameters, solving an equation and outputting parameters such as oxygen content; parameterizing and correcting the oxygen output, the speed, the oxygen output angle and the oxygen output aperture according to the oxygen concentration distribution condition in the room; a contour surface animation is drawn through post-processing, and the oxygen concentration distribution condition is displayed; by means of the method, indoor self-adaptive oxygen supply and indoor real-time oxygen visual distribution prediction in the high-altitude environment can be achieved.

The application relates to the technical field of transportation, in particular to a detection method and device for vehicle pollutant emission data in a high-altitude extreme environment, wherein the method comprises the following steps: obtaining actual driving data of a vehicle in different driving states, and calculating motion characteristic data and environment characteristic data in different target driving segments; outputting emission characteristic data corresponding to a certain emission amount by using a pre-constructed pollutant emission classification and identification model; determining boundary conditions of the vehicle in a drum test working condition, and constructing the drum test working condition to determine emission data of the pollutants in the corresponding driving state. Therefore, the problems that the high-altitude working condition constructed by directly depending on the actual driving emission data in a low-altitude environment cannot accurately reflect the real emission performance of the vehicle in the high-altitude environment, that the actual driving emission test technology is difficult to implement in the high-altitude environment and costs a lot, and that it is difficult to accumulate a large amount of data in a short time are solved.

This invention relates to the field of high-altitude environmental health monitoring technology, and particularly to an intelligent fusion analysis method and system for brain oxygen signals in high-altitude environments. This method acquires and fuses multi-channel brain oxygen saturation, multi-dimensional physiological parameters, and time-varying environmental data to mine the synergistic characteristics of oxygen metabolism across brain regions and construct a spatiotemporal evolution tensor. Based on this, a multi-scale, time-dependent hypoxia susceptibility dynamic model is constructed, generating a prospective risk assessment benchmark. Furthermore, risk extrapolation and causal chain reconstruction of brain oxygen evolution are performed, outputting structured prediction results and dynamically recalibrating the model. This achieves accurate, prospective assessment and dynamic tracking of individual brain oxygen risk in high-altitude environments.

The invention discloses a preparation method of ruminant rumen bypass protein powder, relates to the technical field of rumen bypass protein, and aims to solve the problems that a rumen bypass protein powder coating layer is easy to damage and is dissolved in advance and the ruminant has poor specific absorption in a high-altitude environment. The method comprises the following steps: pretreating concentrated whey protein and soybean protein isolate to obtain a basic protein mixture; preparing a modified shellac solution, and preparing calcium hydroxycitrate-modified shellac microspheres from the modified shellac solution and calcium hydroxycitrate; preparing a gamma-polyglutamic acid-lactobacillus plantarum compound system and a folium cortex eucommiae extract-betaine compound system; the above four components are mixed and dried to obtain the product. The ruminant feed is suitable for high-altitude rumen low-pH environment, improves the stability of a coating layer, gives consideration to energy metabolism regulation, can improve the protein utilization rate and the ruminant production performance, and is suitable for ruminant breeding in high-altitude areas.