1219results about How to "Functional" patented technology

The invention discloses a control method and a control system of a data center liquid cooling heat dissipation system, and relates to the technical field of liquid cooling heat dissipation, the system realizes real-time state monitoring of server operation through a data acquisition and monitoring module, integrates multiple data such as temperature, flow velocity and pressure difference, forms a detailed comprehensive heat dissipation data set, and improves the heat dissipation efficiency. And a database is constructed for storage. And meanwhile, a cooling liquid flow velocity analysis control module of the system generates a server heat dissipation coefficient CN through the server operation environment parameter C1 and the server operation parameter C2, the server heat dissipation coefficient CN is compared with a preset heat dissipation threshold C for evaluation, and the cooling liquid flow velocity is adjusted in real time. Therefore, when the load of the server is increased, the cooling intensity can be automatically increased, the chip temperature is reduced, and stable operation of the server is kept; and when the load is reduced, the cooling intensity is reduced, the energy consumption is reduced, and the cooling efficiency and the energy utilization rate of the system are remarkably improved.

The invention discloses a thermal management control system and method for a power battery pack, and belongs to the technical field of electric automobiles, and the system comprises the following modules: a multi-parameter acquisition module which is used for acquiring parameter data of the battery pack in real time; the data preprocessing and fusion module is used for generating a high-quality and uniform-format data set; the dynamic prediction modeling module is used for realizing accurate temperature trend prediction; the intelligent decision module is used for generating an optimal heat management strategy; the thermal management execution module is used for realizing accurate temperature regulation and thermal management; the system monitoring and diagnosis module is used for ensuring safe operation of the system; a man-machine interaction module; the intelligent thermal management system is used for realizing man-machine collaborative intelligent thermal management. According to the thermal management control system and method for the power battery pack, the particle swarm optimization algorithm is utilized, the power battery thermal management system of a thermal management strategy is dynamically adjusted, more accurate temperature prediction and control are achieved, energy consumption is optimized, and the service life of the battery is prolonged.

The invention discloses an automatic quality-supplementing correction method and system for the unbalance amount of a fan, and the method comprises the following steps: collecting geometric parameters and material characteristics in a static state of the fan, and constructing a mechanical distribution model of the fan; the method comprises the following steps: collecting vibration signals and airflow characteristics in real time in a dynamic operation state, calculating the amount of unbalance in operation and decomposing the amount of unbalance into a primary component and a secondary component; on the basis of the unbalance prediction trend, determining a quality supplementing range, carrying out multi-point quality supplementing operation through a dispensing technology, and monitoring a quality supplementing effect by using an optical fiber sensor; and if the residual unbalance amount after quality supplementation still exceeds the standard, real-time compensation adjustment is carried out through the electromagnetic torque regulation and control module. Full-process automatic correction from static state to dynamic state and from quality supplement to fine adjustment is achieved, the method has the advantages of being real-time, accurate and intelligent, vibration and noise in the fan operation process can be effectively reduced, the operation stability of equipment is improved, and the service life of the equipment is prolonged.

The invention relates to the field of intelligent health situation monitoring, in particular to an elderly health situation monitoring and early warning system and device based on digital twinning, and the system comprises a data collection module, a digital twinning module, a risk prediction module and an early warning module. Wherein the data acquisition module acquires physiological and environmental data in real time; the digital twin module constructs an environment and individual model which dynamically reflects the physical state of the old people, predicts the environment risk and adjusts the state of the model; the risk prediction module evaluates health risks according to the vital sign data and a twinborn model; and the early warning module customizes a health management scheme or sends early warning to nursing personnel according to the evaluation result. The system has the advantages of real-time performance and accuracy, realization of personalized health management, effective prediction of environmental risks, timely early warning and presentation of technical advantages. Meanwhile, physiological and environmental factors are comprehensively considered, comprehensive health management support is provided for old people, and health monitoring and risk early warning efficiency is remarkably improved.

The invention discloses an intelligent auxiliary system and method for regular inspection of a pressure vessel, and aims to improve the intelligence, efficiency and accuracy of inspection of the pressure vessel. The system comprises a data acquisition module, a data processing module, a risk assessment module, an inspection plan generation module, a report generation module, a remote monitoring module and a historical data management module. Operation parameters of the pressure vessel are collected in real time through the sensor, the data processing module carries out elimination and trend analysis on abnormal data, and the risk assessment module assesses the operation state of the pressure vessel through machine learning and a fuzzy logic algorithm. The system dynamically generates an inspection plan according to an evaluation result and adjusts an inspection period through Bayesian updating, and a generated inspection report has a digital signature to ensure safety. The historical data management module stores and analyzes long-term data and supports trend prediction of equipment health conditions, and the remote monitoring module provides real-time state checking and early warning.

The invention relates to a composite hydrogel dressing for promoting wound healing as well as preparation and application thereof, and belongs to the technical field of biological medicines. The hydrogel disclosed by the invention is prepared by mixing gelatin, oxidized dextran and metal ion modified metal-organic framework compounds (MOF-Ag and MOF-Cu). In the mixed solution, amino groups in the gelatin and aldehyde groups of the oxidized dextran are subjected to a Schiff base cross-linking reaction, and the composite hydrogel is formed after standing. The loaded MOF-Ag has antibacterial and anti-biofilm effects on staphylococcus aureus and escherichia coli, and the loaded MOF-Cu has similar superoxide dismutase activity and similar glutathione peroxidase activity, so that excessive active oxygen can be removed, and inflammatory response can be relieved. The obtained hydrogel has good biocompatibility, proper mechanical properties and biological adhesion, stable rheological properties, excellent antibacterial and anti-inflammatory functions and a certain hemostatic function.

The invention discloses a template embedded type dam face permanent heat preservation protection module and a prefabrication and construction method. Comprising a heat preservation core layer, a facing anti-seepage protection layer is arranged on the side, close to a concrete pouring formwork, of the heat preservation core layer, an internal pressure-bearing protection layer is arranged on the side, close to dam surface layer crack limiting steel bars, of the heat preservation core layer, and a thermal broken bridge supporting keel is arranged in the heat preservation core layer; an anchoring device is arranged in the area between the internal pressure-bearing protection layer and the dam surface layer crack limiting steel bars. The modular prefabrication and construction method is adopted, the prefabrication and installation method of a single module is simple and efficient, details such as anchoring protection measures are fully considered, the engineering construction operability is high, convenience and high efficiency are achieved, and the construction time of the heat preservation layer is greatly saved.

The invention provides a concrete admixture with sulfate corrosion resistance and rust resistance functions. The concrete admixture is prepared from the following raw materials in parts by weight: 50-65 parts of fly ash, 8-12 parts of barium carbonate, 8-12 parts of barium hydroxide, 8-12 parts of mineral powder, 5-8 parts of modified hydrotalcite or hydrotalcite, 1-3 parts of nano silicon dioxide and 1-3 parts of calcium nitrite. Nano silicon dioxide is adopted as a compact component, the porosity of the material is reduced, the compactness of concrete is improved, sulfate in the environment is inhibited from being transmitted into the concrete, meanwhile, hydrotalcite is modified by polymaleic acid serving as a scale inhibition component, and the scale inhibition effect is improved through the dual effects of high adsorbability and slow release of the scale inhibition component of hydrotalcite. The preparation method has the advantages that generation of ettringite and gypsum in a sulfate radical environment is inhibited, calcium nitrite is added as a corrosion-inhibiting component, a protective film is formed on the surface of a reinforcing steel bar, the corrosion phenomenon of the reinforcing steel bar in a concrete structure is inhibited, and finally, the concrete admixture with sulfate corrosion resistance and corrosion-inhibiting functions is formed through compounding.

The invention discloses an intelligent early warning system for laboratory hazardous gas leakage, and the system comprises a system initialization and configuration module which is used for carrying out sensor deployment, system configuration and network connection; the real-time monitoring and data acquisition module is used for continuously monitoring sensor data and preprocessing the data; the data analysis and judgment module is used for threshold comparison and trend analysis to obtain alarm information and notification information; the alarm and notification module is used for sending out alarm information and notification information; the linkage control and emergency response module is used for automatically closing a dangerous source and starting a ventilation system; the recording and reporting module is used for recording events and generating reports; and the system recovery and evaluation module is used for alarm release, system inspection and safety evaluation. According to the invention, more comprehensive and intelligent laboratory hazardous gas leakage early warning can be carried out.

The invention discloses a magnetic buckle and a kettle device, the kettle device comprises a kettle main body and the magnetic buckle, the magnetic buckle comprises a male buckle and a female buckle, a rotatable unlocking operation piece is arranged in the female buckle, and the male buckle and the female buckle can be driven to be disengaged through the unlocking operation piece; the female buckle can be fixedly arranged on the kettle body or detachably connected with the kettle body, and the male buckle is used for being fixed to a using place. According to the kettle device, hanging and dismounting of the kettle body are achieved through detachable connection of the male buckle and the female buckle, the force application direction of the unlocking operation is conducted in the direction away from the male buckle and is consistent with the gripping force direction when a user grips the kettle, and therefore unlocking can be conducted while the kettle is gripped, the action is completed at one time, and the user experience is improved. And the kettle main body can be taken down from a use place without excessive actions, so that the operation is very humanized, the practicability is very high, and the kettle is suitable for being vigorously popularized.

The invention discloses a well station instrument fault intelligent diagnosis system and diagnosis method based on big data and artificial intelligence, and the system comprises a well station instrument data management and acquisition module which collects and stores well station instrument data in real time, and provides a visual data display interface at the same time, so that an operator can know the operation state of a well station in time; the well station instrument data analyzing and processing module is used for analyzing the collected well station instrument data and extracting key index data; according to the well station instrument fault early warning model system, a multi-level early warning model is created, and potential faults of well station instruments can be effectively recognized and predicted; and the well station instrument fault diagnosis and analysis module is used for quickly identifying abnormal conditions in the well station instrument data, making fault early warning and analysis reports and providing the fault early warning and analysis reports to management personnel. According to the intelligent diagnosis system and the diagnosis method, problems possibly occurring in production are analyzed and predicted through an intelligent algorithm and a model, and corresponding measures are taken in advance so as to ensure safety and stability of oil well production.

The present invention relates to the technical field of photovoltaic power equipment, and discloses a photovoltaic grid-connected cabinet, including a cabinet support and an outer shell, wherein a plurality of breathing plates are fixedly installed inside the cabinet support, and the plurality of breathing plates divide the inner cavity of the cabinet support into different installation chambers, and the breathing plate includes a base plate and a plurality of heat-conducting blocks, wherein the plurality of heat-conducting blocks are embedded in the inner surface of the base plate, and a flow guide pipe is embedded inside the base plate, and the flow guide pipe passes through the heat-conducting block and is fixedly connected, and a plurality of heat-conducting blocks are connected in series, and a breathing cavity is opened inside the heat-conducting block. The photovoltaic grid-connected cabinet adopts a breathing plate as a cabinet partition, and the opening and closing of the breathing cavity can be adjusted by controlling the expansion and contraction of a telescopic ball, so that the grid-connected cabinet not only has the function of blocking external dust and high temperature, but also has the function of one-way ventilation and heat dissipation. Since a monitoring component is arranged inside the breathing plate, the grid-connected cabinet has the function of discharging internal hot air nearby, reducing heat dissipation energy consumption, and being more environmentally friendly.

The invention relates to the technical field of holders, and discloses a self-stabilization holder searchlight tracking system, which comprises a holder autonomous stabilization subsystem, a tracking control subsystem and a searchlight subsystem, and is characterized in that the holder autonomous stabilization subsystem comprises a servo motor, a servo motor connecting arm, a servo controller and an attitude position sensor; one end of the servo motor connecting arm is fixedly connected with the servo motor, the other end of the servo motor connecting arm is fixedly provided with a fixing structure, and the top of the fixing structure is provided with a data transmission interface. According to the self-stabilizing pan-tilt searchlight tracking system, stable operation of a searchlight at different angles and in complex environments is achieved through the pan-tilt autonomous stabilizing system, the system can automatically adjust the direction and angle of the searchlight according to the position of a target, it is ensured that continuous tracking is conducted in the target moving process, and efficient illumination is provided; the design improves the precision of target tracking and the stability of illumination, and is suitable for various application scenes such as night monitoring, security patrol, search and rescue and the like.

The invention discloses a lithium ion battery diaphragm performance automatic detection device and a detection method thereof.The detection device comprises a feeding mechanism and a detection module, and the detection module comprises a thickness detection unit, a gram weight detection unit, a porosity detection unit, a puncture strength detection unit and an air permeability detection unit; the thickness detection unit adopts a thickness gauge to detect the thickness of the diaphragm; the gram weight detection unit calculates the weight of the diaphragm in unit area according to the measured weight and area; the porosity detection unit calculates the porosity by combining the area and the thickness of the diaphragm; the puncture strength detection unit adopts a needle head to penetrate through the diaphragm, captures the maximum load at the penetration moment, and divides the maximum load by the average thickness of the diaphragm to obtain the puncture strength; the air permeability detection unit evaluates the air permeability by using the time required for the air to pass through the diaphragm with the specific area. According to the invention, comprehensive automatic detection of diaphragm performance can be realized, manual intervention is reduced, detection efficiency is improved, and data of transverse consistency and longitudinal consistency can be well seen.

The invention discloses a new energy automobile charging management system, and aims to improve the charging efficiency, prolong the service life of a battery and improve the user experience. The system comprises a battery monitoring module, a charging mode management module, an intelligent scheduling module, a remote control module, a safety protection module, a big data analysis module and a billing management module. The battery monitoring module collects data such as battery voltage, current and temperature in real time; the charging mode management module dynamically selects a fast, standard or slow charging mode according to the battery state and the user demand; the intelligent scheduling module optimizes a multi-vehicle charging sequence to realize reasonable resource allocation; the safety protection module provides overvoltage, overcurrent and temperature protection to ensure charging safety; the remote control module enables a user to monitor and adjust the charging state in real time. According to the invention, through intelligent charging management, resource configuration optimization, charging efficiency improvement, safety risk reduction in the charging process and battery life prolonging, convenient charging experience is provided for users.

The invention provides a big data-based CPTPP commercial country agricultural food product trade barrier prediction and analysis system. The system comprises a data acquisition module, a data processing module, a prediction model construction module, a non-tax barrier analysis module, a risk assessment and coping suggestion module, a visual display module and the like. By integrating an international trade database, tax and non-tax barrier data, policies and regulations and other multi-dimensional information and combining a machine learning algorithm, the system can predict agricultural food product trade barriers among CPTPP adult countries in the future. According to the system, algorithm models such as a random forest and a support vector machine are adopted, the probability of occurrence of trade barriers is analyzed based on historical data and real-time policy changes, and a prediction result is displayed through a visual means. The system also provides risk assessment and corresponding coping suggestions to help users to optimize export strategies and reduce trade risks.

The invention discloses an orderly carrying robot for intelligent manufacturing, and particularly relates to the technical field of carrying robots, the orderly carrying robot comprises a movable base, a fixed vertical plate is fixedly arranged on the rear side of the top end of the movable base, and two fixed supporting rods are fixedly arranged at the top of the front end of the fixed vertical plate; a first movable plate is arranged at the bottoms of one ends of the two fixed supporting rods, a second movable plate is arranged at the bottom of the first movable plate, and two clamping plates are arranged at the bottom end of the second movable plate. By adjusting the positions of the U-shaped frame and the rotating roller, the two clamping plates can achieve the two effects of clamping and tidying according to needs, the clamping plates are driven to move up and down through cooperation with the hydraulic cylinder, in this way, goods on the ground can be carried and transferred, goods on the belt conveyor can be automatically stacked and carried through cooperation with up-down movement of the containing disc, and the working efficiency is improved. Moreover, the function conversion process is relatively simple and convenient, and the use effect is relatively good.

The invention discloses a shed frame type orchard kiwi fruit picking device and a picking method. The device comprises a walking mechanism; the picking mechanism is installed on the frame of the walking mechanism through a lifting mechanism and comprises a support, a driving component, a transmission shaft, picking discs and shifting fingers, the support is installed at the top end of the lifting mechanism, the driving component is installed on the support and connected with the transmission shaft, the picking discs are installed on the transmission shaft in a staggered mode, and an included angle is formed between every two adjacent picking discs; the gaps between the adjacent picking discs are periodically expanded and contracted; the shifting fingers are connected with the driving part, are arranged corresponding to the picking disc and are mounted on the bracket through a supporting shaft; the detection mechanism is used for detecting the density and height distribution of the fruits to be picked in real time to obtain detection information; and the controller is connected with the walking mechanism, the picking mechanism and the detection mechanism, dynamically plans an optimal picking path and an optimal picking sequence according to the detection information, and adjusts picking operation parameters and picking postures in real time. The invention further provides a shed frame type orchard kiwi fruit picking method.

The invention discloses a uniform stranding device for aluminum alloy stranded cable processing, which comprises two stranding discs, an adjusting assembly, a limiting plate, support frames, a stranding disc and a die sleeve, and is characterized in that a plurality of support frames which are uniformly and annularly distributed and are used for mounting pay-off discs are arranged between the two stranding discs, and the adjusting assembly comprises a first gear, a second gear and an inner gear ring; the multiple second gears are located among the first gear, the second gears and the inner gear ring and are engaged with the first gear and the inner gear ring, the second gears and the supporting frame are fixedly connected and are rotationally connected with the first wire twisting disc, and the limiting plate is provided with a positioning rod used for positioning the first gear and the inner gear ring; according to the uniform stranding device for aluminum alloy stranded cable processing, a second gear in an adjusting assembly is limited through a positioning rod of a limiting plate, the rotating state of a supporting frame on a first stranding disc is adjusted, back-twist stranding processing and non-back-twist stranding processing of the aluminum alloy stranded cable are achieved, and the uniform stranding device is suitable for stranding processing requirements of aluminum alloy wire cores with different cross sections.

The invention discloses an intelligent identification method and system for analyzing abnormal node electricity prices based on multi-dimensional backtracking. The method comprises the steps of collecting node real-time electricity prices, node synchronous real-time historical electricity prices and multi-dimensional data indexes influencing the node electricity prices in real time; the node electricity price and the multi-dimensional data are preprocessed, and a multi-dimensional real-time electricity price feature set is constructed. According to historical electricity price data, an electricity price prediction model of a BP nervous system introducing an adaptive fuzzy neural network is established, a multi-dimensional reference electricity price feature set is constructed, and an electricity price normal range is delimited. And comparing the multi-dimensional real-time electricity price feature set with the multi-dimensional reference electricity price feature set in real time, performing multi-dimensional backtracking analysis on the abnormal node electricity price, and analyzing the reason of the electricity price abnormality. And according to the backtracking analysis result, classification is carried out according to abnormal reasons, and an abnormal alarm is sent to technicians. According to the method, the abnormal electricity price and the reason thereof are accurately positioned, the problem response speed and the processing efficiency are improved, and powerful technical support is provided for stable operation of the electricity market.

The invention discloses an angle-adaptive and pressure-adjustable optical element polishing grinding head, and belongs to the technical field of precision manufacturing, the angle-adaptive and pressure-adjustable optical element polishing grinding head comprises a bottom plate, a positioning mounting pin is arranged in the center of the upper surface of the bottom plate, an air nozzle is mounted on the upper surface of the bottom plate, and a corrugated pipe connector is arranged on the lower surface of the bottom plate; the corrugated pipe connector is connected with the top end of a corrugated pipe, a grinding head base is installed at the bottom end of the corrugated pipe, and a grinding head is connected to the lower portion of the grinding head base through a clamping ring. According to the angle-adaptive and pressure-adjustable optical element polishing grinding head, the angle of the grinding head is automatically adjusted through the flexible structure of the corrugated pipe, the grinding head is dynamically attached to the surface of an optical element, and the grinding head adapts to the surface with the complex curvature; the contact pressure between the grinding head and the surface is accurately controlled by regulating and controlling the medium pressure in the corrugated pipe, and excessive grinding or damage is avoided. The closed cavity guarantees the stability of the system, and the dynamic adjusting capability guarantees the real-time optimization of the angle and the pressure in the machining process.

The invention relates to the field of information investigation and electronic countermeasure, in particular to a multi-element antenna array and a related system.The antenna array comprises a plurality of antenna array elements, a polygonal cylinder base, an antenna cover and a fixed bottom plate, and the input ends of the antenna array elements are connected with a radio frequency connector; the related system comprises an antenna array, a power supply and communication control module and a radio frequency module. The antenna array is used for solving the technical problems that an existing antenna array is narrow in frequency domain coverage, not wide enough in space domain coverage, large in weight and size and not integrated with the ultra-wideband azimuth direction finding function and the electronic interference function. According to the antenna array, the frequency coverage is 2-18 GHz, the airspace coverage is 360 degrees, the lightweight design is realized, and the antenna array integrates the functions of omnibearing direction finding and electronic interference; spatial multipath investigation signals are received to carry out combined amplitude comparison direction finding, characteristics and threat levels of the investigation signals are calculated and confirmed through an algorithm, and then investigation tracking and electronic interference tasks are carried out on a threat target in a specified direction according to the orientation of the threat target.

The utility model discloses a magnetic polishing machine workpiece overturning clamp which comprises a driving structure, the driving structure is connected with a container structure, a workpiece is placed in the container structure, the workpiece is connected with a clamping structure, and the clamping structure is connected with the container structure. And the clamping structure comprises a supporting frame, a connecting block, an electric telescopic rod, a door frame, a first motor, a rotating rod, a rotating shaft, a second motor, a third motor, a connecting arm, a suction nozzle and a quick plug interface. The polishing device has the beneficial effects that the container structure can be integrally driven through the arranged driving structure, the full contact effect of grinding materials and workpieces is improved, meanwhile, the arranged clamping structure has the functions of flexible clamping and workpiece overturning, and meanwhile the problem that clamping points cannot be effectively polished can be solved.

The invention discloses an adjustable overload release for a plastic shell type circuit breaker. The adjustable overload release comprises a bimetallic strip, a connecting plate, an adjusting screw, a thermal element, a support and a fixed iron core, wherein the thermal element, the support and the fixed iron core are sequentially attached and fixed together to form a release main body; the bimetallic strip is arranged on one side of the release body in a sliding mode, and a lower threaded hole is formed in the lower portion of the bimetallic strip. The connecting plate is positioned on the other side of the release main body, and the upper end of the connecting plate is fixedly connected with the thermal element; a fixed iron core screw hole is formed in the fixed iron core, and a fixed iron core limiting notch is formed in the fixed iron core; the rod portion of the adjusting screw is in threaded connection with the lower threaded hole, the head portion of the adjusting screw is rotationally arranged in the fixed iron core limiting notch and cannot move axially, and a polygonal driving groove is formed in the side, facing the fixed iron core screw hole, of the head portion of the adjusting screw. The device is good in adaptability and universality, can adapt to different currents, does not need to replace thermal elements made of different materials when the currents are changed, does not affect the production cost and turnover, and does not reduce the batch production efficiency.

The invention provides a safe and reliable data center machine room cooling channel, and belongs to the technical field of data center heat dissipation and cooling devices. Comprising a bottom plate component, a vertical frame component, data center cabinets, a fire-fighting linkage skylight system, an access door system, an access control system and a monitoring sensing system, the data center cabinets are arranged between the bottom plate component and the vertical frame component in pairs, and the fire-fighting linkage skylight system is located at the top ends of the data center cabinets and the vertical frame component and can be in linkage with the monitoring sensing system. The channel door systems are located on the two sides of the cold channel respectively and can be in linkage with the access control system and the monitoring sensing system, and the purposes of safe opening and closing and emergency opening and closing are achieved. Meanwhile, an intelligent lighting system is further installed on the outer bottom face of the bottom short frame in the fire-fighting linkage skylight system, conventional lighting management can be achieved, highlight continuous lighting can be conducted in emergency, and reliable guarantee is provided for efficient operation, safety management and energy-saving control of a data center.

The invention relates to a geothermal recharge water multi-effect treatment system, which comprises a desanding and filtering unit, a water supply unit, a water supply unit and a water supply unit, wherein the desanding and filtering unit is used for discharging impurity particles in geothermal water; the water inlet and the water outlet are located on the two sides of the tank body, the spiral pipe is located in the tank body, can rotate and enables impurity particles to be separated from water, and the drain outlet is located at the bottom of the tank body and used for discharging the impurity particles. The high-frequency electric field generating unit is located on the inner wall of the tank body and used for removing old scales in geothermal water and inhibiting generation of new scales, and a middle electrostatic field formed by the high-frequency electric field generating unit is parallel to the direction of the water inlet; the ultrasonic degassing unit is positioned on the inner wall of the tank body and is used for removing dissolved oxygen in geothermal water; and the ultraviolet sterilization unit is positioned in the water outlet. Compared with the prior art, the device has the advantages of integrating the functions of sand removal, scale removal and prevention, sterilization, degassing and the like.

The utility model relates to the technical field of electrical control boxes, in particular to an explosion-proof marine electrical control box which comprises a box body, the box body comprises an outer coating layer, an inner coating layer, an outer stainless steel plate, an inner stainless steel plate, a sound insulation cotton layer, a heat preservation plate layer and a screen plate, the sound insulation cotton layer is arranged on the outer side of the screen plate, and the outer stainless steel plate is arranged on the outer side of the sound insulation cotton layer. An outer coating layer is arranged on the outer side of the outer stainless steel plate, a heat preservation plate layer is arranged on the inner side of the screen plate, an inner stainless steel plate is arranged on the inner side of the heat preservation plate layer, and an inner coating layer is arranged on the inner side of the inner stainless steel plate. The utility model has the functions of sound insulation, noise reduction, heat preservation and moisture prevention, retains the original stainless steel plate design, designs the outer stainless steel plate and the inner stainless steel plate to play the roles of impact protection and supporting plasticity, coats the inner coating layer and the outer coating layer to realize the functions of insulation and moisture prevention, integrates the whole box body, reduces the thickness of the used stainless steel plate, and reduces the cost. The overall weight is reduced, the explosion-proof effect is better, and the moisture-proof effect is achieved from the two aspects of water insulation and heat preservation.

The invention provides a strip-shaped long-distance unmanned aerial vehicle sensing countering system and method along a railway, and relates to the technical field of rail traffic safety. The system comprises an unmanned aerial vehicle detection device arranged at a key node along a railway and used for detecting an unmanned aerial vehicle; the unmanned aerial vehicle countering device transmits a controllable interference signal to interfere with the unmanned aerial vehicle; the signal receiving and directional transmitting equipment is used for receiving, amplifying and redirectionally transmitting the interference signal or the radio signal transmitted by the unmanned aerial vehicle; the rear-end intelligent management and control platform is used for receiving the signal information, analyzing the threat level in real time, selecting a countering strategy and implementing directional interference through equipment; the method comprises the steps of equipment deployment, detection and early warning, data analysis, instruction issuing, signal emission and interference, and response and dynamic adjustment. According to the invention, the problems of insufficient coverage, poor identification precision and single countering means in long-distance and strip-shaped scenes along the railway in the prior art can be solved, and real-time sensing and dynamic countering of the unmanned aerial vehicle are realized.

The invention relates to the technical field of wafer feeding, and particularly provides a wafer feeding platform which comprises a base part and a wafer box. The base part comprises a metal bottom plate and a sliding tray arranged at the upper end of the metal bottom plate, and a sliding mechanism is arranged between the metal bottom plate and the sliding tray; the wafer box comprises a box body, a plurality of stainless iron plates which are uniformly distributed from top to bottom are arranged in the box body, and a wafer feeding position is arranged at the upper end of each stainless iron plate; according to the invention, the sliding base part is used, and the vertical quick clamp is used for fixing the sliding tray, so that the structural stability is improved, and the position precision of the wafer box is ensured; the wafer box can separate and discharge the wafers to meet the use requirements of different types of wafers, so that the use flexibility and the overall production efficiency of the equipment are improved; the automatic box opening and closing device integrates the functions of bearing, adjusting, clamping, box opening, box closing and the like, the process is simplified, and the production efficiency and the production standardization degree are improved.

The invention provides a preparation method of antibacterial degradable fibers. The preparation method comprises the following steps: adding chitosan and citric acid into a polyethylene glycol solution, and uniformly stirring to obtain an antibacterial polyvinyl alcohol solution; the preparation method comprises the following steps: mixing polylactic acid, chitosan, super-antibacterial polyvinyl alcohol 1, a compatilizer polyvinyl alcohol grafted modified poly-L-lactic acid and polycaprolactone, an antioxidant and a lubricant in a high-speed mixer to obtain a material 1; adding the material 1 into a parallel double-screw extruder from a main feeding hole, and granulating to obtain a granular material 2; performing vacuum drying on the material 2 to obtain a material 3; and putting the material 3 into a screw type spinning machine for melt spinning to obtain the antibacterial degradable fiber. The antibacterial functional components chitosan and polyvinyl alcohol are well combined with a water-soluble degradable fiber base material, so that good functionality, spinnability and mechanical strength are achieved at the same time. The prepared material has the characteristics of high antibacterial property, wide antibacterial spectrum, low cost, environment friendliness and the like, and has a good market application prospect.