81 results about "Environmental safety" patented technology

The invention relates to the technical field of mine environment control, and discloses an intelligent environment monitoring and control method in a mine laneway. The method comprises the steps that a real-time environment parameter set of a mine laneway is collected, the set contains gas concentration data, dust concentration data and temperature and humidity data, and real-time capture of laneway environment multi-dimensional parameters is achieved; then, based on the collected real-time environment parameter set, calculating an environment safety evaluation index so as to scientifically and objectively reflect the roadway environment safety condition; a dynamic control strategy is generated according to the environmental safety evaluation indexes, and the strategy comprises ventilation equipment regulation and control parameters and early warning level parameters and can be flexibly adjusted according to environmental changes; and finally, the ventilation equipment regulation and control parameters are sent to a mine ventilation system, and roadway environment regulation and control are executed. According to the method, environmental parameters can be comprehensively monitored, safety risks can be accurately evaluated, ventilation equipment can be flexibly regulated and controlled, the early warning function can be perfected, energy waste can be reduced, labor intensity can be reduced, and underground operation safety and mining efficiency can be guaranteed.

The invention belongs to the technical field of granary access control, and particularly relates to an intelligent granary access control system which comprises an environment sensing module, an identity recognition module, a processing control module and an execution and feedback module. The environment sensing module is used for collecting environment parameter data at the entrance of the granary in real time and comprises a phosphine sensor, an oxygen sensor and a carbon dioxide sensor; according to the invention, by fusing the technical characteristics of the hydrogen phosphide sensor, the oxygen sensor and the carbon dioxide sensor, the environmental safety is comprehensively evaluated, and compared with the dependence of a single sensor, the accuracy and reliability of environmental state judgment are remarkably improved, and the occurrence of false alarms and missing alarms is effectively prevented. Due to the fact that a control logic process of'absolute priority of environmental safety 'is adopted, the technical characteristic ensures that personnel safety is put at the first place under any condition, which is a core guarantee of high safety of the system, and the effect of the system is directly reflected as protection of life safety.

The invention provides an underground water source water quality early warning method and system for environmental safety, and relates to the technical field of environmental protection and water quality safety, and the method comprises the steps: obtaining a plurality of water quality indexes of an underground water source in different historical periods and index values corresponding to the water quality indexes; screening the water quality indexes by combining a Lasso regression model and an FISTA algorithm, and determining key water quality indexes; constructing a two-dimensional tensor according to the key water quality index and the index value; constructing a water body pollution prediction model based on CNN and LSTM in combination with an attention mechanism; inputting the two-dimensional tensor into a water body pollution prediction model, and determining a pollution factor concentration; calculating the deviation between the pollution factor concentration and the pollution factor threshold value, and determining the water quality risk grade; and performing early warning on the water quality of the underground water source by combining an early warning grading strategy according to the water quality risk grade. The water quality safety of the underground water source can be ensured, and potential threats to the environment and human health are reduced.

The invention belongs to the technical field of safety prevention and control of flammable and explosive environments, and particularly relates to an explosion suppression grading protection system and method, and the system comprises a monitoring module which monitors the environment information in a to-be-monitored area; the signal processing module is used for generating a grading early warning instruction according to the environment information; the explosion suppression execution module is used for executing an explosion suppression action according to the grading early warning instruction; and the reset module is used for generating reset information so as to reset the explosion suppression execution module. On the basis of cooperation of the monitoring module, the signal processing module and the explosion suppression execution module, corresponding explosion suppression actions can be automatically triggered, manual intervention is not needed, a complete and rapid safety protection closed loop from risk perception to active suppression is achieved, the speed and reliability from risk discovery to active intervention are remarkably improved, and the safety protection effect is improved. And the safety risk of the to-be-monitored area is greatly reduced. Based on the cooperation of the reset module, the signal processing module and the explosion suppression execution module, the standby state can be quickly recovered after explosion suppression is completed, the maintenance steps are simplified, and the use cost is reduced.

The utility model provides a shield tunnel limited space safety operation protection early warning system, comprising RFID tags carried by constructors and corresponding to the constructors one by one; an identity management server; the environment monitoring system is provided with a plurality of sensor assemblies and used for monitoring the temperature, humidity and air quality in the limited space of the shield tunnel; the UHF card reader is arranged at the entrance of the shield tunnel and used for preliminarily positioning the identity of a constructor; the face recognition system is used for carrying out face image acquisition and face recognition and registration on the entering constructors and counting the total number of the constructors; the environment safety early warning system is used for receiving the temperature, the humidity and the air quality which are monitored in real time and performing construction early warning according to a safety threshold range; and the monitoring center is connected with the identity management server, the face recognition system and the environment safety early warning system, is provided with a display screen, and is used for displaying data monitored by the environment monitoring system and early warning information.

This invention discloses a multi-dimensional environmental security management and control system for server rooms, relating to the field of server room environment supervision. It includes: a data acquisition module for collecting environmental parameters, equipment operating parameters, and redundancy status data related to PUE extreme conditions within the server room; and an analysis module for receiving data from the acquisition module, constructing a condition correlation analysis model based on the received data, predicting server room environmental security risks and potential faults caused by insufficient redundancy under PUE extreme conditions, and simultaneously outputting risk management instructions. This invention can sensitively capture minute parameter fluctuations and identify parameter drift risks. It can also accurately predict server room environmental security risks and potential faults caused by insufficient redundancy through multi-dimensional feature analysis. Furthermore, without increasing PUE constraints, it can adaptively schedule and allocate redundant resources based on risk level and equipment operational importance.

This invention relates to a low-corrosion water-soluble cleaning agent for aluminum alloys, containing the following components by weight percentage: 8-15% composite surfactant; 3-8% weak alkaline buffer; 2-6% aluminum alloy-specific composite corrosion inhibitor; 1-4% chelating cleaning aid; 1-3% co-solvent; 0.05-0.3% defoamer; 0.1-0.5% bactericide and preservative; and the balance being deionized water. It features non-corrosion properties on aluminum alloys, high cleaning efficiency, good corrosion and rust prevention, and environmental safety. It can quickly remove contaminants from the workpiece surface at room temperature while maintaining the workpiece's shine, extending the cleaning agent's service life, and is suitable for the cleaning needs of precision aluminum alloy workpieces.

The invention discloses an environment security check method and device, and a storage medium. The method comprises the following steps: determining a target security inspector according to inspection point information of an inspection point and work information of the security inspector; generating a security check task according to the check point information and the work information of the target security inspector, and sending the security check task to a target security check terminal of the target security inspector; and determining whether the security check task is completed or not according to task execution information collected by the target security check terminal in response to the control instruction. According to the technical scheme, the automation degree of environment safety check can be improved, and environment safety check can be efficiently carried out.

The invention discloses a pixel scale water environment safety assessment method based on a non-point source water body pollution risk, and belongs to the technical field of environmental protection. According to the method, through an agricultural non-point source pollution direct evaluation method, the pollution risk of terrestrial agricultural non-point source output to surface water is accurately quantified, a DPeRS model is introduced, quantitative evaluation of the remote sensing pixel scale agricultural non-point source river entering amount is achieved, and the pixel scale agricultural non-point source river entering concentration is quantified as a non-point source pollution risk evaluation index in combination with an SWAT model. With surface water environment quality improvement as a target, an agricultural non-point source pollution in-water risk grade threshold value is determined based on a nitrogen and phosphorus concentration limit value in a surface water environment quality standard and a national secondary pollution general survey agricultural non-point source proportion, and a pixel scale agricultural non-point source in-water pollution risk prominent area is rapidly screened. High-precision target positioning of remote sensing pixel scale agricultural non-point source pollution is realized, and source-targeted agricultural non-point source pollution precise prevention and control and agricultural non-point source pollution treatment effect evaluation are facilitated.

The invention discloses a river sediment curing agent as well as a preparation method and application thereof. Comprising 25-32 parts of steel slag micro powder, 16-22 parts of metakaolin, 8-10 parts of modified activated carbon, 3-5 parts of modified straw ash, 3-5 parts of nano calcium carbonate, 5-8 parts of an exciting agent, 3-5 parts of sinking beads, 2-4 parts of nano iron particles, 3-6 parts of chitosan quaternary ammonium salt and 10-15 parts of sulphoaluminate cement clinker. The components of the curing agent provided by the invention realize efficient curing of the river sediment through multi-dimensional synergy of'gelling enhancement-structure densification-pollution fixation-performance adaptation ', so that the mechanical strength, durability and water resistance of a cured body are ensured, pollutants in the sediment can be stabilized, and the construction feasibility and environmental safety are considered at the same time.

This application belongs to the field of flammable and explosive environment safety control technology, and particularly relates to a graded explosion suppression protection system and method. The system includes: a monitoring module for monitoring environmental information within the monitored area; a signal processing module for generating graded early warning commands based on the environmental information; an explosion suppression execution module for executing explosion suppression actions according to the graded early warning commands; and a reset module for generating reset information to reset the explosion suppression execution module. Based on the cooperation of the monitoring module, signal processing module, and explosion suppression execution module, corresponding explosion suppression actions can be automatically triggered without manual intervention, realizing a complete and rapid safety protection closed loop from risk perception to proactive suppression. This significantly improves the speed and reliability from risk detection to proactive intervention, greatly reducing the safety risk in the monitored area. Based on the cooperation of the reset module with the signal processing module and explosion suppression execution module, the system can quickly return to standby status after explosion suppression, simplifying maintenance steps and reducing operating costs.

The application relates to the technical field of inorganic nonmetallic materials, and particularly discloses a foamed ceramic material and a preparation method thereof. The material is prepared from solid waste-based main materials, a foaming agent and a stabilizing additive containing barium oxide, magnesium oxide and titanium dioxide. The preparation method comprises the following steps: after the raw materials are mixed according to the proportion, wet ball milling is carried out to prepare slurry, the obtained slurry is sprayed and dried to prepare powder, and finally, the powder is sintered and formed under a specific sintering system in an air atmosphere. By introducing a BaO-MgO-TiO2 ternary synergistic stabilization system, the technical problems of unstable solidification, interference in the foaming process and uneven product performance existing in the traditional carbon reduction method for treating chromium-manganese-containing solid waste are effectively solved, long-term chemical fixation of harmful elements in the ceramic matrix is realized, a foamed ceramic product with excellent environmental safety and good physical performance is successfully prepared, and a new way is provided for high-value resource utilization of large quantities of industrial hazardous waste.

The application belongs to the technical field of groundwater resource management, and discloses an integrated method of groundwater source environment safety and sustainable utilization technology, which comprises the following steps: first step, multi-source database construction and feature recognition; second step, technology system construction and applicability evaluation; third step, technology combination comparison and effect evaluation; fourth step, system integration and output. The beneficial effects are as follows: the technical problems of cross-disciplinary joint interpretation and mechanism identification caused by the format and scale conflicts of original data are solved completely. The repeated calculation contribution caused by the strong internal correlation of indexes is effectively weakened, so that the applicability score of the final calculation can truly and accurately reflect the physical matching relationship between the technology and the complex hydrogeological environment condition. The globally optimal integrated technology path screening with high self-adaptation and cross-scenario robustness in the multi-dimensional conflict solution space is realized, and a scientific and operable tool for fine management is provided.

The invention discloses a mine environment monitoring method, device and system, and relates to the technical field of mine environment monitoring, and the method comprises the steps: 1, preliminary data collection, 2, topographic information analysis, and 3, risk grade analysis. Analyzing the environmental safety index of each side slope area of the surface iron ore, screening each abnormal side slope area, matching various types of mine distribution topographic information of each abnormal side slope area, and evaluating the topographic space landslide confrontation index and the topographic environment landslide confrontation index of each abnormal side slope area of the surface iron ore; the fuzziness and missed judgment risk of traditional manual judgment are avoided, the accuracy of anomaly recognition is improved, resource waste is avoided, landslide accidents are avoided, the damage degree is reduced, the landslide risk level of each abnormal slope area of the surface iron ore is judged, risk processing is carried out, resource waste in a low-risk area is avoided, risk upgrading is restrained, and the safety of the surface iron ore is improved. And a solid guarantee is provided for mine safety production.

The invention provides a one-bag type suspending agent. Compared with the prior art, the one-bag type suspending agent provided by the invention adopts the components with specific contents, and the components have good interaction, so that the obtained well cementation flushing spacer fluid or drilling fluid thick plug has the characteristics of low viscosity and high shear, thereby having good suspending capacity, being capable of remarkably improving the suspending stability, being capable of preparing a high-density suspension, and being suitable for being used as a well cementation flushing spacer fluid or drilling fluid thick plug. Meanwhile, the selected raw materials are all natural materials, have the non-toxic characteristic, are safe to the environment and are beneficial to environmental protection; the one-bag type suspending agent is simple in preparation method, convenient to construct and suitable for large-scale industrial production and application.

The present application relates to the technical field of agricultural environment monitoring, and discloses a livestock and poultry manure field returning excessive judgment system based on environmental safety, which firstly collects basic data such as farmland soil nutrients, soil structure, meteorological conditions, groundwater depth, terrain slope, crop demand and manure nutrients, and carries out spatial gridding modeling on the farmland area; on this basis, the soil nutrient carrying capacity of each grid unit, the manure nutrient input and the crop nutrient absorption capacity are evaluated, and the nutrient diffusion risk index is calculated in combination with environmental factors such as rainfall, slope and groundwater depth; further, the manure safe application threshold and the excessive index are calculated by comprehensively considering the above parameters, so as to judge whether the manure field returning exceeds the environmental safety range, and output the risk early warning and application control suggestion. The present application can realize fine monitoring and dynamic management of the livestock and poultry manure field returning process, improve the resource utilization efficiency of manure, and reduce the risk of agricultural non-point source pollution.

The invention relates to a method for optimizing material selection and construction processes of a coal-fired boiler water-cooled wall coating, and belongs to the technical field of special coatings for coal-fired boiler water-cooled wall surfaces. According to the method, the corrosion type and the distribution area of the boiler are accurately identified through corrosion diagnosis analysis in the step S1, and an accurate basis is provided for coating material selection; through the multi-dimensional screening criterion and the composite structure design in the step S2, optimal matching of the coating material is achieved; through the optimized spraying process and laser remelting treatment in the step S3, it is ensured that the coating has excellent bonding strength and compactness; s4, establishing a correlation model of coating performance and environmental protection requirements through performance and environmental safety detection in the step S4; through engineering application verification in the step S5, the long-term reliability of the coating is inspected under the actual operation condition; and finally, forming a continuously improved technical closed loop through data feedback and iterative optimization in the step S5.

The invention relates to the technical field of tunnel engineering, in particular to a graded evaluation system and evaluation method based on environmental safety of tunnel constructors, and the graded evaluation system comprises an environmental monitoring module which obtains a measured value through measurement; the environment safety evaluation module comprises a multi-index pollutant model, and the multi-index pollutant model is used for obtaining a multi-index pollutant value through calculation of a measured value and carrying out environment safety grading according to the multi-index pollutant value; and the automatic environment adjusting module is used for adjusting and controlling the tunnel environment according to the environment safety grade and is in signal connection with the environment safety evaluation module, and the automatic environment adjusting module comprises a ventilation unit, an automatic spraying unit, a cooling unit and an emergency response unit. According to the invention, integration of monitoring, evaluation and adjustment can be realized, an intelligent and visual environment monitoring and evaluation tool is provided for tunnel constructors, and the environment condition of a construction site can be mastered in real time.

The invention relates to the technical field of environment monitoring, and discloses an intelligent compact shelving environment safety monitoring system. A multi-source signal acquisition module of the system obtains real-time monitoring signals from various environment sensors at all monitoring points of the compact shelving, and a standardized signal sequence is generated; the time-space correlation analysis module analyzes a time synchronization relationship and a spatial dependency relationship among different monitoring point signals according to the standardized signal sequence, and generates a time-space correlation graph; the dynamic fluctuation evaluation module extracts fluctuation characteristics of a signal of each monitoring point on a plurality of time scales to generate a dynamic fluctuation index; the interference feature extraction module identifies an abnormal mode of each monitoring point signal, calculates an interference probability and forms an interference feature vector; the system error estimation module calculates the overall nonlinear error probability of the system; and the intelligent control module dynamically adjusts environment control parameters according to the nonlinear error probability, and performs closed-loop control on the compact shelving environment through the execution mechanism.

The invention relates to an environmental safety index assessment method for groundwater toxic organic pollutants of an in-production enterprise. The method comprises the following steps: S1, constructing an environmental safety index assessment model; s2, acquiring original data of second-level indexes corresponding to the first-level indexes; s3, determining the weight of each second-level index in the first-level index to which the second-level index belongs; s4, calculating the value of each first-level index based on the weighted second-level indexes; s5, performing normalization processing on the values of the at least two first-level indexes to obtain normalized first-level index values; s6, adding the normalized first-level index values, taking the reciprocal, and calculating the value of the environmental safety index of the groundwater toxic organic pollutants; and S7, according to the value of the environmental safety index, evaluating the environmental safety level of the underground water toxic organic pollutants of the in-production enterprise. According to the method, multi-dimensional factors such as enterprise production characteristics, hydrogeological conditions, pollutant attributes and protection targets can be systematically integrated, and main risk areas and key control links are identified from the whole process of'source-path-sink '.

The invention belongs to the technical field of acetaminophen medicine synthesis, and particularly relates to a preparation method of acetaminophen, which is characterized in that acetaminophen and glacial acetic acid are subjected to one-step amidation reaction in a negative-pressure low-temperature reaction system to synthesize acetaminophen. The method solves the problems of high acetaminophen preparation temperature, easy raw material oxidation, low crude product quality, high cost and environmental protection potential safety hazard.

The present invention relates to an adhesive cylinder / tube insect trap designed to address the challenges of traditional pest control methods. This innovative trap features a substantially cylindrical form with enclosed ends, fully enveloped in a sticky adhesive substance, capable of ensnaring various types of insects upon contact. A key aspect of the invention is the inclusion of a removable plastic cover that safeguards the adhesive layer, ensuring its potency and stickiness are preserved until the moment of use. The cylindrical design offers versatility in placement, allowing the trap to be positioned in strategic locations, including corners, cabinet interiors, beneath appliances, or adhered to vertical surfaces. The discreet form factor allows the trap to blend seamlessly into its surroundings or remain hidden from view, making it an unobtrusive presence in both residential and commercial spaces. The invention provides an effective, environmentally safe, and user-friendly solution for insect and pest entrapment, emphasizing ease of use, aesthetic discretion, and environmental safety.

The utility model relates to the technical field of penetration pieces, in particular to an anti-explosion penetration piece which comprises a connecting piece, a sealing device is arranged on the surface of the connecting piece and comprises a first clamping sleeve, the first clamping sleeve is arranged on the upper surface of the connecting piece, one side of the first clamping sleeve is fixedly connected with a rotating shaft, and a second clamping sleeve is arranged on the lower surface of the first clamping sleeve. One end of the second clamping sleeve is rotatably connected with the rotating shaft, one side of the first clamping sleeve is fixedly connected with a mounting frame, a lead screw is inserted into the surface of the mounting frame, a first hole is formed in the side, close to the lead screw, of the second clamping sleeve, and the lead screw is inserted into the second clamping sleeve. Resource waste or environmental pollution caused by liquid leakage can be reduced, and threat of gas leakage to human health and environmental safety can be prevented for pipelines for transporting toxic and harmful gas.

This invention provides a slow-release marine antifouling coating, its preparation method, and its application, belonging to the field of coating technology. The slow-release antifouling coating comprises 50-60 parts epoxy resin, 5-10 parts nano-cuprous oxide hollow spheres, 1-3 parts 7-amino-4-methylcoumarin, 3-5 parts quaternized chitosan, 2-4 parts DCOIT-supported mesoporous SiO2, 3-8 parts fluorosilane-modified SiO2, 0.5-2 parts carbon nanotubes, 5-10 parts polylactic acid microcapsules, and 1-3 parts silane coupling agent. Through the synergistic combination of epoxy resin, nano-cuprous oxide hollow spheres, and 7-amino-4-methylcoumarin, along with other raw materials, this invention prepares a marine antifouling coating with excellent antifouling performance, slow-release performance, adhesion performance, and environmental safety performance. It can effectively cope with the complex marine environment and has good application prospects.

The application belongs to the technical field of pollutant detection and environmental protection, and discloses a detection method and application of cephalosporin in atmospheric environmental medium, which comprises the following steps: S1, determining key environmental indicators; S2, sampling atmospheric particulates; S3, extracting cephalosporin; S4, batch detection and data analysis. The application also discloses the application of the detection method in environmental and health risk assessment. The application proposes a specific and feasible key detection scheme with low cost through a whole-process strategy of'screening key environmental indicators, optimizing sampling network, sample pretreatment enrichment and purification, high-efficiency separation, high-sensitivity detection, method verification and risk assessment', develops and standardizes the detection method, and qualitatively and quantitatively detects different generations of structural characteristics, so as to improve the detection efficiency, reduce the detection cost, improve the overall monitoring capability of atmospheric environmental safety, and be applicable to activities such as atmospheric environmental health risk assessment.

This invention relates to the field of environmental monitoring technology, and more particularly to a self-learning-based livestock farming environmental control system. In this invention, a multi-point monitoring method is used to acquire ammonia concentration data at multiple points. The points to be monitored are marked according to their ammonia concentrations. Points with excessively high ammonia concentrations are marked as Level 3 points. The type of the point to be monitored is determined a second time based on the slope of the ammonia concentration-time curve at the current time node. When the slope is high, considering that the ammonia concentration is likely to increase in a short period, the point to be monitored is marked as a Level 3 point. The number of points of each type is counted. The ammonia concentration in the livestock farming environment is comprehensively analyzed based on the proportion of Level 3 points. When the proportion of Level 3 points is high, the corresponding treatment method is determined in a timely manner to reduce the ammonia concentration, thus matching the farming environment with the ammonia monitoring method, effectively controlling the ammonia concentration in the livestock farming environment, and improving environmental safety.

The application provides a warning device for civil engineering construction and relates to the technical field of environmental safety monitoring equipment. The device comprises a warning pile, the top of the warning pile is provided with a mounting seat, the mounting seat is provided with a monitoring assembly for monitoring geological data and transmitting a warning, the side of the warning pile is provided with a vertical measurement groove, and a plurality of temperature measurement probes are arranged in the vertical measurement groove; a vertical cavity is arranged in the warning pile, a heat exchange plate is arranged on the bottom of the warning pile, the upper and lower ends of the vertical cavity are connected with the mounting seat and the heat exchange plate through a heat conduction structure, and phase-change working medium is arranged in the vertical cavity for transferring heat; a plurality of baffle groups are arranged on the inner wall of the vertical cavity, the baffle groups are arranged in layers from top to bottom, each baffle group comprises a plurality of inclined baffles, and the plurality of inclined baffles are uniformly arranged on the inner wall of the vertical cavity. Compared with the prior art, the device can effectively cope with the low-temperature environment of repeated freezing and thawing, can judge the frost heaving displacement and landslide displacement, and can avoid false positives and false negatives.

The application provides an environmental safety-oriented groundwater source water quality early warning method and system, relating to the technical field of environmental protection and water quality safety, which comprises the following steps: obtaining multiple water quality indexes of groundwater sources in different historical periods and index values corresponding to each water quality index; screening the water quality indexes by combining a Lasso regression model and a FISTA algorithm to determine key water quality indexes; constructing a two-dimensional tensor according to the key water quality indexes and the index values; constructing a water pollution prediction model based on CNN and LSTM combined with an attention mechanism; inputting the two-dimensional tensor into the water pollution prediction model to determine the concentration of pollution factors; calculating the deviation of the concentration of pollution factors and the threshold value of pollution factors to determine the water quality risk level; and warning the water quality of the groundwater source according to the water quality risk level combined with a warning grading strategy. The application can ensure the water quality safety of groundwater sources and reduce potential threats to the environment and human health.

The invention relates to high-strength environment-friendly nitrile rubber which comprises a rubber matrix, an active agent, a filler, an accelerant, an antioxidant and a modifier, the preparation method of the nitrile rubber comprises the following steps: S1, plasticating and softening the rubber matrix in an open mill; s2, adding an active agent and an antioxidant into the internal mixer, and mixing; s3, adding a filler into the internal mixer to obtain an NBR rubber compound; s4, carrying out thin-passing on the NBR rubber compound through an open mill; s5, adding an accelerant into the open mill, and rolling to obtain sheets; s6, vulcanizing the NBR rubber compound to obtain the high-strength environment-friendly nitrile rubber. Through an innovative nitrosamine-free accelerant combination and composite filler system, the mechanical property and the aging resistance of the nitrile rubber are remarkably improved while environmental protection and safety are guaranteed.

The application provides a kind of measuring equipment protective cover lifting control method and system, its method includes: obtaining several environmental data of target measuring equipment;Safety score step is respectively executed for each environmental data to obtain environmental safety sub-score;Environmental safety score is obtained based on environmental safety sub-score under preset weighting weight;Lifting instruction is generated according to environmental safety score under preset lifting threshold;Safety score step includes: confirming environmental data in preset safety range, then generating environmental safety sub-score as preset score maximum value;Otherwise, judge whether environmental data is gradual risk data;Confirming environmental data is not gradual risk data, then generating environmental safety sub-score based on environmental data in preset high risk range;Otherwise, environmental safety difference value is generated based on environmental data and preset safety range, and environmental safety sub-score is obtained based on environmental safety difference value score mapping.The application can reduce the misoperation rate of protective cover in complex environment.