66results about How to "Reduce potential impact" patented technology

The invention relates to the technical field of data security, and discloses a data security risk assessment method based on model construction, and the method comprises the steps: firstly collecting historical data security events and related system configuration, network architecture and other multi-dimensional data, and carrying out the preprocessing to form a standardized data set; and then, constructing a data security risk prediction model, and predicting future possible data security events and potential influences thereof in combination with multi-dimensional factors. And obtaining a risk prediction result by obtaining data such as a system state and network flow in real time and inputting the data into the prediction model. Meanwhile, a risk influence assessment framework is established, the severity, occurrence frequency and business influence of the risk are comprehensively considered, and a risk comprehensive score is calculated. And finally, sorting and classifying the risks according to the scores, and formulating and implementing corresponding risk relief measures and emergency response plans for high-risk and medium-risk data assets. According to the invention, the accuracy and timeliness of data security risk assessment are improved.

The invention provides a multipurpose and multifunctional composite brush disc, and belongs to the technical field of ocean ship industry. The multifunctional composite brush disc is installed on a certain carrier through a flange installation piece so as to brush a target object, and the multifunctional composite brush disc specifically comprises a motor assembly, a brush assembly and a blade assembly. The motor assembly passes through an output shaft, the brushing assembly is fixedly connected to the output shaft, and the output shaft drives the brushing assembly to rotate; the blade assemblies can be arranged in different numbers according to requirements and are evenly welded to the upper portion of the cleaning and brushing assembly. After the control module controls the driving motor to start, the high-pressure water valve is opened, the brush disc rotates to drive the brush wires and the blade assembly to rotate, and high-pressure water flow can effectively wash and strip substances such as seaweed and silt attached to the surface of a ship body; the blade assembly can effectively cut off shellfish organisms attached to the surface of the ship body; shallow substances such as dirt on the surface of the ship body are brushed through the bristles. Three brushing schemes of high-pressure water, blade cutting and bristle brushing are integrated, and different substances attached to the surface of the ship body can be effectively brushed.

The invention discloses a polyimide hot-melt prepreg, a composite material and a preparation method of the polyimide hot-melt prepreg and the composite material, and belongs to the technical field of composite materials. The preparation method comprises the following steps: preparing a polyimide resin solution for impregnating fibers and self-adhering a surface layer from polyimide, a single solvent and a mixed solvent; preparing semi-solid polyimide prepreg for fiber impregnation and surface layer self-adhesion based on the two polyimide resin solutions, and then preparing an adhesive film and sequentially compounding with fiber cloth to obtain a fiber prepreg; and preparing the polyimide hot-melt prepreg based on the fiber prepreg. According to the preparation method disclosed by the invention, the reinforced fibers are fully infiltrated, and then the toughened and tackified resin layer is compounded on the surfaces of the impregnated reinforced fibers, so that the polyimide hot-melt prepreg with controllable resin content and good paving adhesiveness is obtained, and therefore, the low-porosity high-quality fiber reinforced composite material is prepared, the control difficulty of a forming process is greatly reduced, and the production efficiency is improved. The production efficiency is improved.

The invention discloses a safe wastewater collection box for environmental monitoring, and relates to the technical field of safe wastewater collection boxes, the safe wastewater collection box comprises a precipitation treatment structure, and the precipitation treatment structure comprises a top cover, a bottom cover and a bottom cover, one end of the containing cylinder is fixedly connected to the supporting base, the outer surface of the containing cylinder is attached to the inner surface of the pretreatment cylinder, and the opening direction of the other end of the containing cylinder is the same as the opening direction of the pretreatment cylinder; the outer surface of the inclined plate precipitation piece is attached to the inner surface of the pretreatment cylinder, the push-scraper is connected to the inclined surface of the inclined plate precipitation piece in an attached and sliding mode, and the bearing ring is fixedly connected to the dead center of the inclined plate precipitation piece and located below the push-scraper. The sewage discharge groove of the accommodating cylinder is cleaned and discharged in time, so that accumulation and re-suspension of sediments in the pretreatment cylinder are avoided.

The invention provides a mud-phase shale component quantitative analysis and calculation method, which relates to the technical field of geological mineral exploration and mainly comprises the steps of sample collection and pretreatment, X-ray diffraction pattern acquisition, pattern analysis and mineral component determination, quantitative calculation based on an innovative model, result correction and evaluation and the like. Through an innovative quantitative analysis model and a strict sample processing flow, the content of various mineral components in the mud-phase shale can be more accurately determined, analysis errors are reduced, more reliable data support is provided for geological research and resource exploration, and compared with a traditional method, the method has the advantages that operation steps are simplified, analysis efficiency is improved, and the method is suitable for popularization and application. According to the method, the quantitative analysis of the mud-phase shale components can be completed in a shorter time, the progress of research and exploration is accelerated, the dependence on complex and expensive chemical analysis equipment is reduced, the experiment cost and the human input are reduced, and meanwhile the utilization efficiency of resources is improved.

The invention relates to a submarine data center gas-liquid alternate heat dissipation device, which comprises a heat dissipation box, a gas junction station, a gas flow pipeline, a liquid flow pipeline and a heat exchange box, and is characterized in that the heat dissipation box is respectively provided with a first gas inlet, a first water inlet, a first gas outlet and a first water outlet; the heat exchange box is provided with a second air inlet, a second water inlet, a second air outlet and a second water outlet, the first air outlet of the heat dissipation box is connected with a gas converging device, the gas converging device is connected with the second air inlet of the heat exchange box through an airflow pipeline, and the first water outlet of the heat dissipation box is connected with the second water inlet of the heat exchange box through a liquid flow pipeline; a first heat pipe and a second heat pipe are arranged on the heat dissipation box and the heat exchange box respectively. The device is beneficial to improving the heat dissipation efficiency, stability and reliability of the submarine data center.

The invention discloses a method for improving alkaline water electrolysis hydrogen production efficiency by using electrolyte concentration difference, and belongs to the technical field of water electrolysis hydrogen production. The method comprises the following steps: adding KOH electrolyte with the concentration of 30wt% into the cathode region on one side of the diaphragm, and adding KOH electrolyte with the concentration of 35wt% into the anode region on the other side of the diaphragm; and electrifying the electrolytic bath, controlling the temperature to be 80-90 DEG C, and carrying out electrolytic reaction on the water under the action of the electric field. The hydrogen production efficiency of alkaline electrolyzed water is improved by utilizing the electrolyte concentration difference, the hydrogen production efficiency and the hydrogen purity can be improved, the energy consumption and the equipment cost can be reduced, the reliability and the durability of the system are improved, meanwhile, the environmental influence is reduced, and a positive role is played in promoting the production and the application of green hydrogen.

The invention provides a process and equipment for secondary environment-friendly recycling of a waste solvent, which are applied to the technical field of production and manufacturing, and are characterized in that the waste solvent of an enameled wire is filtered, the filtered recycled solvent is sampled, the specific proportion of paint resin in the solvent is analyzed, and then the proportion of high-solid-content paint resin needing to be added is calculated according to a measurement result; and mixing the high-solid-content paint resin with the recovered solvent according to the calculated ratio, pumping the high-solid-content paint resin from the bottom of the container by using a circulating pump, and mixing the high-solid-content paint resin with the recovered solvent in an upward spraying manner, so that the high-solid-content paint resin and the recovered solvent are fully mixed to form the low-solid-content paint resin capable of being secondarily utilized. According to the secondary environment-friendly recycling process for the waste solvent, the recycling rate of the waste solvent is increased, the performance of the recycled solvent is ensured by accurately controlling the proportion of paint resin, and the dual requirements of environment protection and economic benefits are met.

The invention relates to the technical field of power grid impedance simulation control, and discloses a power grid impedance simulation control method based on a new energy grid-connected detection platform, which comprises the steps of data sampling, phase voltage calculation, coordinate transformation, voltage regulation, modulation wave calculation, power calculation, output current reference value calculation, power grid impedance simulation, conversion into a static coordinate system, SVPWM modulation and the like. According to the power grid impedance simulation control method, the grid-connected equipment can be effectively adjusted through dynamic simulation of the power grid impedance, so that the grid-connected equipment is kept stable under various load and disturbance conditions; through accurate power and current control, the utilization rate of new energy is maximized, and the energy efficiency and economical efficiency of the system are improved; the output can be adjusted according to the real-time power grid state, so that the response capability of the system to different load conditions is improved; through real-time monitoring and dynamic control, faults can be found and processed in time, and the potential influence on the system and the probability of fault occurrence are reduced; moreover, the impedance of the power grid is simulated in a wide frequency domain, and the engineering implementation is simple.

The invention relates to the technical field of organic synthesis, and discloses a method for synthesizing a 3-fluoropyrrole compound through palladium-catalyzed defluorination cyclization reaction. According to the method, high-efficiency preparation of the 3-fluoropyrrole compound is realized through intramolecular defluorination cyclization reaction of a gamma, gamma-difluoroallyl imine substrate under the action of a palladium catalyst. Compared with the traditional method for synthesizing the 3-fluoropyrrole compound, the method disclosed by the invention has the advantages that the raw materials are cheap and easy to obtain; the experiment operation is simple; the reaction yield is high; the method is wide in application range; a series of 3-fluoropyrrole derivatives can be obtained.

The invention relates to the technical field of antibacterial materials, and provides a light-enzyme-heat synergistic antibacterial nano composite material and a preparation method thereof.The preparation method comprises the steps that 1, a copper-based chalcogenide with a plasma resonance effect serves as a structural template, a transition metal oxide intermediate layer and a bismuth oxyhalide epitaxial layer are sequentially constructed on the surface of the copper-based chalcogenide with the plasma resonance effect through a step-by-step continuous solvothermal method, and the copper-based chalcogenide with the plasma resonance effect serves as the structural template; forming a core-shell heterojunction with Z-type energy band matching; (2) pre-assembling a natural enzyme and a monatomic nano-enzyme in a buffer system to form a composite catalytic unit with an electron transfer channel; and (3) by taking the core-shell heterojunction as a polymerization core, under the precise temperature control condition of 0-10 DEG C, initiating active free radical polymerization through an interface, constructing a thermal response polymer shell layer on the surface of the heterojunction, and encapsulating the composite catalytic unit in a functional microdomain of a polymer network in situ. The anti-bacterial fabric can achieve a better synergistic anti-bacterial effect.

The present invention provides an automatic transfer control system and control method to solve the technical problem that vehicles lack efficient transfer means at high loading density. The system includes: a transfer response layer, which interacts with the upper system for data, forms an operation strategy for the transfer equipment according to the control purpose of the upper system, monitors the operation status of the transfer equipment and feeds back to the upper system; a signal aggregation layer, which obtains the setting benchmark of the built-in sensor of the transfer equipment, obtains the operation signal of the transfer equipment collected by the built-in sensor, and forms the field operation data according to the setting benchmark; a function configuration layer, which stores customized data processing processes, processes the field operation data through the data processing process to respond to the transfer control process request; a transfer control layer, which adapts the operation strategy to form the transfer control process of the transfer equipment, and controls the transfer of the transfer equipment vehicle. The control process of vehicle transfer is decoupled from the control process of the transfer equipment, which ensures the adaptability to complex transfer scenarios and the control versatility of the transfer equipment.

The invention discloses an in-situ leaching liquid injection system and method for high-altitude ionic rare earth ore, and belongs to the field of rare earth hydrometallurgy. The system is composed of a liquid injection well pattern, a layered liquid injection device, a first liquid supply system, a second liquid supply system and a collection system. Exploring the thickness of an ore body weathering crust and vertical distribution of rare earth / impurities; the liquid injection hole is vertically divided into an upper layer liquid injection area (1 / 3-1 / 2 of the upper part) and a lower layer liquid injection area (1 / 2-2 / 3 of the lower part); a 1.0-1.4 wt% low-concentration diethylenetriamine-ammonium acetate composite leaching agent is injected into the upper layer, and co-leaching of impurities such as aluminum and iron is reduced; 1.5-2.5 wt% of high-concentration diethylenetriamine-ammonium acetate composite leaching agent is injected into the lower layer to ensure efficient leaching of rare earth; and rare earth-rich leaching liquid is collected. Compared with a traditional full-layer high-concentration process, the method has the advantages that the use amount of a leaching agent is reduced by 20-40% while the rare earth leaching rate is kept to be larger than or equal to 90%, the aluminum ion concentration of the leachate is reduced by 30-60%, the agent cost and the follow-up impurity removal load are remarkably reduced, and the method is particularly suitable for the high-altitude, low-temperature, low-air-pressure and thick-weathered crust environment.

The invention provides a photovoltaic adhesive film as well as a preparation method and application thereof, the photovoltaic adhesive film comprises matrix resin and porous magnesium hydroxide loaded with an anti-aging aid, and the anti-aging aid is at least partially distributed in pores of the porous magnesium hydroxide; the particle size of the porous magnesium hydroxide is 1-100 nm; the porosity of the porous magnesium hydroxide is 20%-60%, and the problem that the anti-aging efficiency is reduced due to the fact that the concentration of the anti-aging auxiliary agent is reduced along with time when the photovoltaic adhesive film is used for a long time in the prior art is solved.

The invention discloses a method for preparing a self-flowing high-efficiency fast-dissolving drag-reducing fracturing fluid system. The following components in weight percentage are added into a reactor in sequence: 45% to 50% of the water-soluble high molecular polymer solution obtained in step one, 27% to 29% of the fluorine-containing monomer modifier solution obtained in step two, 11% to 12% of the polymer nanocomposite material obtained in step four, 2% to 3% of a dispersant, 1.8% to 1.9% of an inorganic salt, 1.2% to 1.3% of a cross-linking agent, and the balance is water. The invention discloses a method for preparing a self-flowing high-efficiency fast-dissolving drag-reducing fracturing fluid system. By adding a modifier into a nano material, a polymer film can be directly formed on the surface of the nano material by chemical bonding, thereby changing the surface properties thereof, so that the stability and shear resistance of the fracturing fluid are maintained at high temperatures.

The invention relates to the technical field, in particular to a high-salt organic wastewater degradation composite catalyst. According to the technical scheme, the method comprises the steps of carrier selection, catalyst preparation and catalyst characterization and performance evaluation, the carrier selection comprises the steps of selecting a carrier aluminum oxide with high specific surface area, good pore structure and high chemical stability according to the characteristics of the high-salinity organic wastewater, and fixing metal ions on the carrier through catalyst preparation, and carrying out physicochemical property characterization on the prepared composite catalyst in a catalyst characterization mode, analyzing the chemical state of active components of the catalyst, and evaluating the catalyst through the performance evaluation. Through research and development of the high-salt organic wastewater degradation composite catalyst, the wastewater treatment efficiency can be improved, the cost can be reduced, resource recovery can be promoted, and the environment can be protected.

The invention discloses a manganese substitute-containing water dispersible granule as well as a preparation method and application thereof. The water dispersible granule containing the manganese substitute is prepared from 70 to 90 parts of mancozeb microcapsules and 10 to 20 parts of auxiliaries, the microcapsule comprises a capsule wall and a capsule core; the capsule wall comprises a glucan solution of benzalkonium chloride, ethanol, zein and pectin in a weight ratio of (1-3): (3-5): (1-2): (5-7); the capsule core comprises diatomite loaded with mancozeb. According to the water dispersible granule, through a specific proportion and a preparation process, good coating and stable release of effective components are realized, the utilization rate and the lasting period of pesticides are improved, and environmental pollution is reduced, so that crop diseases and insect pests are effectively controlled.

The invention discloses an innovative process for extracting effective components from tylosin waste liquid for liquid fertilizer, and relates to the technical field of fertilizer preparation, and the innovative process comprises the steps of tylosin pretreatment, extraction separation, concentration purification and nutrition proportioning. On one hand, the ultrasonic cavitation effect can effectively break agglomerated particles possibly existing in the tylosin waste liquid, so that filtering is more sufficient and efficient, on the other hand, the polydopamine coating modified ceramic membrane can better intercept tiny impurity particles, meanwhile, the adsorption and blocking phenomena of impurities on the surface of the membrane are relieved, and the filtering efficiency is improved. Compared with a traditional pure physical filtering mode, the tylosin waste liquid treatment device has the advantages that suspended particles, colloids, part of macromolecular impurities and the like in the waste liquid can be more effectively removed, and the tylosin waste liquid is magnetized, so that the treatment efficiency is improved, and the treatment cost is reduced. The interaction between effective components of the tylosin and other subsequently available components and substances such as an extracting agent can be improved.

The utility model discloses a touch display device for a wearable intelligent watch, and relates to the field of intelligent watch installation. The watch comprises a watch body, a mounting groove is formed in the top of the watch body, a sealing edge is arranged on the inner wall of the mounting groove, and a mounting mechanism is arranged on the top of the sealing edge. Guiding and positioning are provided for installation of the touch screen, it is ensured that the touch screen can be accurately and rapidly installed on the watch, the side hole, the movable groove, the movable plate, the clamping block and other structures are ingeniously combined, a locking mechanism is formed, when the insertion rod is inserted into the insertion hole, the clamping block is automatically clamped into the clamping hole in the insertion rod, the touch screen is stably locked, meanwhile, a poking needle is inserted into the poking hole, locking can be easily unlocked, and the operation is convenient. Simple and quick disassembly of the touch screen is achieved, and the maintenance and replacement efficiency is improved.

The invention provides a preparation method of small Fisher tantalum oxide, and relates to the technical field of industrial small Fisher tantalum oxide preparation. The preparation method comprises the following steps: carrying out normal-temperature neutralization treatment on Ta2O5-containing industrial tantalum liquid by using stronger ammonia water, stirring and mixing, and carrying out solid-liquid separation to obtain a tantalum hydroxide filtrate; and sequentially carrying out drying treatment, calcining treatment and crushing and screening treatment on the tantalum hydroxide filtrate to obtain the small Fisher tantalum oxide. The preparation method of the small Fisher tantalum oxide, provided by the invention, has the remarkable beneficial effects of improving the production efficiency, reducing the cost, improving the product quality and improving the environmental sustainability.

The invention relates to a foam type organochlorine disinfectant as well as a preparation method and application thereof, and belongs to the technical field of disinfectants. Magnesium sulfate is modified by polysilicic acid, so that a stable wrapping system is formed between the modified magnesium sulfate and organochlorine, and the stability and long-term effectiveness of an effective chlorine component in the using process are greatly improved; meanwhile, a synergistic effect between the surfactant and sodium dimethylbenzene sulfonate is introduced to construct an additional protection layer, so that the overall stability of the organochlorine disinfectant is further reinforced, and possible harmful contact of the organochlorine disinfectant under complex or bad environmental conditions is blocked; performance reduction or potential hazards caused by environmental factors are effectively prevented, and safe and efficient use of the disinfectant is ensured. According to the foam type organochlorine disinfectant, a double wrapping system is utilized, the long-term effect and stability of the disinfection effect are improved, and the environmental adaptability and use safety of the product are remarkably enhanced.

The invention belongs to the technical field of biomedicine, and particularly relates to a bionic T cell secreting type engineering bacterium lung targeted delivery system based on respiratory tract atomization and a construction method and application. The delivery system comprises engineering bacteria and a coated bionic biological membrane, the coated bionic biological membrane is a T cell membrane, and the engineering bacteria can secrete IL-12. The delivery system disclosed by the invention can realize intelligent, precise, visual and non-invasive efficient delivery of exogenous engineering bacteria drugs; by utilizing a gradient freeze-drying technology and an advanced aerosol inhalation technology, local delivery of an exogenous engineering bacterium drug in a host lung is realized, and focus targeted colonization of the engineering bacterium drug is realized; by utilizing an accurate cell membrane coating technology, monitoring and killing of immune cells are reduced, and the colonization efficiency of engineering bacteria is improved; and an engineering bacterium secretion system after biological modification and optimization is synthesized, so that the space-time accuracy of immune regulation of an exogenous engineering bacterium medicine can be further realized in a synergistic manner.

The utility model provides a kind of battery module, battery pack and vehicle, it is related to new energy automobile field.The battery module includes shell, liquid cooling plate and multiple electric cores, liquid cooling plate is set to the bottom surface of shell, liquid cooling plate has heat conduction convex part;Heat conduction convex part is formed with containing groove on liquid cooling plate;And multiple electric cores, multiple electric cores are set in shell, electric core has opposite first face and second face, first face is provided with pressure relief device, and electrode is provided on second face;Wherein, multiple electric cores are arranged on heat conduction convex part, first face is contacted with heat conduction convex part, heat conduction convex part is used to conduct the heat of electric core to liquid cooling plate, and pressure relief device is located in containing groove.When the pressure relief device of electric core opens or electric core leaks, since pressure relief device is located in containing groove, all leaked electrolyte or fallen impurities can be effectively collected in containing groove, solve the safety problem brought by the pressure relief device of electric core after opening.

The invention discloses a preparation method of a nano chitosan antibacterial synergist, which comprises the following steps: dissolving chitosan in acetic acid, and standing overnight after dissolving until no obvious particles exist to obtain a chitosan solution; adding an antibacterial drug into the chitosan solution, performing magnetic stirring, and then adding a cross-linking agent to obtain the nano chitosan antibacterial synergist. The nano chitosan conjugated penicillin is used for the first time, the effect of the nano chitosan conjugated penicillin on clinical drug-resistant escherichia coli is verified, application possibility is provided for reducing use and drug residues of clinical drugs, and compared with a current common antibiotic treatment method, the nano chitosan conjugated penicillin has the advantages that the application range is wide; the preparation method has the advantages that the antibacterial effect is improved, the drug use amount is reduced, drug residues are reduced, the drug resistance problem is solved, and the preparation method is simple and convenient. According to the research, on the basis of drug-resistant escherichia coli, nano chitosan antibacterial synergists with different concentrations are added, and the antibacterial effect of the nano chitosan antibacterial synergists on the drug-resistant escherichia coli is evaluated. And a certain theoretical and experimental basis is provided for clinical medication.

The application provides a kind of mitochondria-targeted palladium-doped finger citron carbon dot nanomaterial and a preparation method thereof.The preparation method uses natural plant finger citron as raw material, through hydrothermal reaction, cooling, centrifugation, dialysis, freeze-drying and other steps, extracts natural carbon dots from finger citron, and then dopes palladium and mitochondria-targeted peptide, finally obtains mitochondria-targeted palladium-doped finger citron carbon dot nanomaterial (PDs@SS31).The mitochondria-targeted palladium-doped finger citron carbon dot nanomaterial prepared by the application can form a multifunctional synergistic treatment system in combination with a near-infrared light irradiation device.The system has high-efficiency ROS scavenging, precise mitochondria targeting, near-infrared response and immune regulation functions, has excellent biocompatibility, can effectively activate the mitochondrial autophagy pathway, and can significantly improve the treatment effect of acute lung injury by specifically reprogramming the oxidation-reduction homeostasis in the lung microenvironment.

The invention relates to the technical field of synthesis of electrochemical nano materials, in particular to a method for preparing a cobalt manganese oxide material by utilizing cobalt-doped induced crystal transformation and application of the method, and the method specifically comprises the following steps: S1, putting ethylene glycol and deionized water into a reaction container, stirring, and uniformly mixing to form a solution A; s2, sequentially adding cobalt chloride hexahydrate, manganese acetate tetrahydrate, a glucose-polyvinyl alcohol compound and urea into the solution A in the step S1 to obtain a solution B; s3, heating the solution B obtained in the step S2, reacting, cleaning and drying to obtain a precursor; and S4, pouring the precursor obtained in the step S3 into a crucible, putting the crucible into a high-temperature furnace, and finally obtaining the cobalt-doped manganese oxide. The preparation method is simple, manganese oxide crystal transformation is successfully induced through the trace cobalt element, and the prepared material is excellent in electrochemical performance.

The utility model discloses a railway field section tunnel soil sampling device belongs to sampling device field, including the sampling pipe, the bottom clamping of sampling pipe has sealing mechanism, the top fixedly connected with sampling mechanism of sampling pipe inner side wall, the sealing mechanism includes snap ring, the outer surface of snap ring is through the outer surface of sealing ring clamping in the sampling pipe bottom, the upper surface fixedly connected with sealing sleeve of snap ring, the upper surface fixedly connected with A magic paste of sealing sleeve, the upper surface of A magic paste is pasted with B magic paste, through the cooperation of above each device, through the sealing mechanism of setting, the sealing mechanism is placed in the sampling pipe when soil sampling, and sealing mechanism can effectively prevent the pollution of soil, for the soil sample that needs to keep specific humidity condition, sealing can effectively avoid the infiltration of moisture loss or external moisture, maintains the original physical and chemical properties of sample.

This invention relates to the field of robot control technology, and more particularly to a multimodal environmental perception adaptive robot, comprising: an environmental perception component for acquiring visual images, spatial point clouds, human body thermal distribution, temperature and humidity, and illuminance; a multimodal feature extraction component for calculating the illumination degradation factor, the approach potential of the crowd, and the environmental disturbance index; a scene analysis unit for determining whether to adapt to a dangerous, attention-based, or conventional type based on the environmental disturbance index, determining the fusion weight of the positioning mode based on the illumination degradation factor, and determining the walking speed and narration volume based on the approach potential of the crowd; a behavior strategy grader for outputting the initial speed, volume, and path planning mode; and an adaptive feedback device for monitoring the trend of the environmental disturbance index and triggering strategy upgrades. This invention achieves stable positioning under low light conditions, smooth speed and volume adjustment in dynamic crowd flow, and adaptive services with quantified environmental disturbances, ensuring the operational safety and narration quality of the ancient book exhibition area.

The invention relates to the technical field of medical equipment, in particular to a portable acupuncture and massage electromagnetic head therapeutic apparatus which comprises a helmet and further comprises a gradient installation ring, the gradient installation ring gradually expands outwards in a spiral shape from top to bottom, and a plurality of iron cores are fixedly installed at the bottom of the gradient installation ring. The multiple iron cores are spirally distributed along the bottom of the gradient mounting ring, two U-shaped mounting grooves are formed in the bottom of each iron core, and magnet assemblies are arranged in the two mounting grooves respectively. The device has the advantages that the device better fits the irregular shape of the head, a magnetic field uniformly covers the whole head, it is guaranteed that the head receives a balanced magnetic field effect, a magnetic field effect blind area is avoided, the overall treatment effect is improved, the mounting groove guides the magnetic field trend, magnetic field leakage and disordered diffusion are reduced, the magnetic field acts on a treatment area more intensively, and the treatment effect is improved. The utilization efficiency of the magnetic field is improved, more magnetic energy is concentrated on a part needing treatment, the magnetic field intensity of the treatment side is improved, and therefore the treatment effect is enhanced.

A connecting device for a cabinet body comprises a connecting device body, a first connecting plane is arranged on one side of the connecting device body, a second connecting plane and a third connecting plane are arranged on the other side of the connecting device body, a segment difference is arranged between the second connecting plane and the third connecting plane, and a connecting piece is arranged on the other side of the connecting device body. The first connecting plane is used for being detachably connected to the handle baffle, the second connecting plane and the third connecting plane are used for abutting against the cabinet body, and the connecting piece is used for being detachably connected to the cabinet body. Due to the fact that the section difference is formed between the second connecting plane and the third connecting plane, in the process of installing the handle baffle, the connecting device only needs to be simply turned over, and the first connecting plane corresponding to the second connecting plane or the third connecting plane corresponding to the thickness size of the handle baffle is aligned with the handle baffle. According to the design, not only is the installation process simplified, but also the adaptability of the product and the user experience are greatly improved.