175results about How to "Increased persistence" patented technology

The invention relates to the technical field of intelligent control and optimization of a photovoltaic power generation system, and discloses a self-adaptive photovoltaic module inclination angle adjusting method and system based on environmental conditions, and the method comprises the steps: obtaining short-term weather forecast data through a meteorological data interface, analyzing the weather forecast data, and predicting the environmental change in several hours in the future; monitoring pollution data of the surface of the photovoltaic module in real time through a sensor, and judging whether the pollution degree affects the power generation efficiency or not; according to the prediction result and the pollution degree, the inclination angle of the photovoltaic module is dynamically adjusted, the power generation efficiency under the upcoming illumination condition is optimized, the inclination angle of the photovoltaic module is dynamically adjusted in combination with short-term weather forecast data obtained by the meteorological data interface, and the power generation efficiency of the photovoltaic system under the complex environment is remarkably improved. The system can quickly respond to environmental changes, and efficiency loss caused by adjustment lag is avoided. And multi-factor collaborative optimization is realized, and the maximum power generation efficiency of the photovoltaic system under various conditions is ensured.

The invention discloses rock crushing and coring equipment for geotechnical engineering investigation, and belongs to the technical field of drilling equipment. The rock crushing and coring equipment for geotechnical engineering investigation comprises a drilling tool, a sampling barrel and a high-pressure water supply device, and further comprises a triggering part, a coring part and a control part, and the triggering part is arranged at the end, away from a drill bit of the drilling tool, of the sampling barrel; a first sliding groove is formed in the water flow reversing part, the high-pressure water supply device communicates with a water outlet in the drill bit through the water flow reversing part, the water flow reversing part communicates with the first sliding groove, and the water flow reversing part is used for communicating the high-pressure water supply device with the first sliding groove when the triggering part is triggered; one end of the sliding sleeve is hermetically and slidably connected into the first sliding groove; the cut-off part is connected with the other end of the sliding sleeve, and when high-pressure water is introduced into the first sliding groove, the sliding sleeve drives the cut-off part to move into the sampling barrel. According to the rock crushing and coring equipment for geotechnical engineering investigation, the drill bit can be cooled by using high-pressure water, the abrasion of the drill bit is reduced, and a rock core is cut off by using the high-pressure water as power, so that the integrity of the obtained rock core can be ensured.

The invention discloses an optical storage and charging cooperative off-network control method based on an energy router, and relates to the technical field of optical storage and charging cooperative control, and the method comprises the steps: collecting energy router grid-connected point off-network control data and environmental parameters in real time, carrying out the preprocessing of the collected data, and storing the processed data into a time sequence database; constructing a multi-level prediction model to predict load, power generation and power grid condition data, and dynamically updating system operation parameters according to a prediction result; according to the off-network control data, performing intelligent off-network pre-judgment to switch a system operation mode, and performing off-network operation optimization control; and continuously monitoring the state of the power grid, recovering grid-connected operation after the bus voltage is stable, and carrying out optical storage and charging collaborative off-grid control based on the energy router. According to the invention, long-time off-grid operation of the DC micro-grid is realized, and the power supply reliability and the equipment safety of off-grid operation are improved.

The invention discloses a financial transaction management and control method and device, and relates to the field of financial science and technology, and the management and control method comprises the steps: obtaining a business identifier, a product identifier and a channel identifier of a target financial transaction based on a financial transaction request, and constructing key value information based on the business identifier, the product identifier and the channel identifier; based on the key value information, determining a target financial interface corresponding to the target financial transaction, and obtaining a management and control strategy set of the target financial interface corresponding to the target financial transaction, the management and control strategy set including M interface authorization management and control strategies, N interface time management and control strategies and K interface flow management and control strategies; and determining the management and control state of the target financial transaction based on the management and control strategies in the management and control strategy set. According to the invention, the technical problem that a current-limiting protection mode based on a leaky bucket algorithm or a token bucket algorithm cannot satisfy financial services in a complex scene in the prior art is solved.

The invention discloses an advanced reactor core system and a water replenishing method, and belongs to the technical field of reactor equipment, the advanced reactor core system comprises a reactor core pressure system and at least two safety injection systems, and each safety injection system comprises a water replenishing mechanism and a water injection mechanism. The effect of automatically adjusting the flow is achieved through the multiple sets of water passing holes formed in the water outlet pipe in the water supplementing container from top to bottom, the flow of cooling liquid conveyed to the pressure container through the water supplementing container is better matched with the requirement, the water supplementing continuity is improved, the acting time of the water supplementing container is greatly prolonged, and therefore the system pressure is reduced, and the system safety is improved. It is ensured that the low-pressure water injection mechanism can be put into operation before the water supplementing container lacks water, namely, the input pressure of the low-pressure water injection pump is reduced, the structure is simple, the action time of passive injection is prolonged, dependence on an emergency power supply at the initial stage of an accident is reduced, and meanwhile the requirements for pump flow and a pressure head are reduced; and the reliability and economical efficiency of the safety injection system are obviously improved.

The invention provides intelligent three-dimensional planting equipment, and relates to the technical field of agricultural planting, the intelligent three-dimensional planting equipment comprises a tripod main body, and the intelligent three-dimensional planting equipment is also provided with two chains I. The intelligent three-dimensional planting equipment adopts the stable tripod main body, and a tray rack which is obliquely arranged outwards can guarantee sufficient lighting; according to the requirements of different crops, corresponding matrixes can be selected to carry out planting modes such as organic planting, nutrient solution cultivation and water planting, water supplementing modes include spraying, drip irrigation and tide immersion methods, the water supplementing operations can be smoothly completed in the movement process of the equipment, in addition, a light supplementing device, a water planting device, an aeroponic cultivation device and the like can be additionally arranged on the equipment, and the equipment is convenient to use. Compared with traditional agriculture, the device has the advantages that the agricultural modernization planting mode is improved, the occupied area is greatly reduced, land resources are prevented from being wasted, the investment amount is greatly reduced, lighting is uniform, the temperature is uniform, watering is uniform, installation is easy, and harvesting is easy.

The invention discloses a hanging rail lifting inspection robot for unit equipment of a coal preparation plant, belongs to the technical field of inspection robots, and solves the problem that when a roller of a traditional inspection robot moves forwards, although the roller can press lubricating oil and play a certain lubricating role, the roller can not work normally due to non-uniform distribution of the lubricating oil and change of the movement direction of the roller when the roller returns. And the roller cannot press the lubricating oil again, so that the lubricating effect is poor. The lubricating head can reciprocate along with rotation of the bearing pulley, and the bearing pulley is coated with lubricating oil in real time. Meanwhile, the gathering rod makes contact with the hanging rail in a rotating mode, lubricating oil which is possibly diffused originally is gathered, a more concentrated lubricating area is formed, and the secondary lubricating effect is achieved. By means of the double-lubrication mechanism, the lubrication uniformity and continuity are improved, the lubrication effect is remarkably enhanced, and friction and abrasion between the idler wheels and the I-shaped hanging rail are reduced.

The invention relates to the field of sensing control systems, in particular to a sensing system based on an on-duty mode and a use method thereof, and the system comprises at least two sensing units, a multifunctional circuit board, an embedded control module, a parameter monitoring module and an automatic switching module; when the sensing unit reaches a preset switching condition, the automatic switching module automatically switches the current sensing unit to another sensing unit to work so as to realize on-duty operation; the switching condition comprises that the working time of the current sensing unit reaches an effective working time threshold value or the running parameter of the current sensing unit drifts and exceeds a preset range. Through cooperative work of the preheating and self-checking module, the pause switching mechanism and the on-duty relay function, the system can flexibly adapt to different environments and detection requirements. The preheating ensures that the sensing unit is started in the optimal state, the pause mechanism reduces switching interference, the on-duty function improves the detection reliability, and the stability and the multi-scene applicability of the system are enhanced.

The invention relates to the technical field of energy consumption management, in particular to a power-adaptive gold bonding wire energy consumption management method and system, and the method comprises the following steps: deploying a power sensor and a vibration sensor for data collection, processing the collected data through a high-pass filter, carrying out the screening through combining the cut-off frequency of the high-pass filter, and outputting the filtering data. According to the invention, through frequency band analysis and self-adaptive power adjustment, the efficiency and precision of energy consumption management are greatly improved, and through screening and analysis of energy fluctuation and duration in a key frequency band, the frequency band with concentrated energy consumption is accurately locked, so that energy utilization is more concentrated and efficient, power output is automatically adjusted, and energy consumption is reduced. According to real-time environment and material parameter adjustment, the response speed is high, the current production requirement can be accurately matched, maximum utilization of energy consumption is achieved, the cost is remarkably reduced, and remarkable advantages are shown in the aspects of optimizing resource allocation and enhancing the continuity of energy use.

The utility model provides a power tool turret with a cooling device to solve the problems that a heat dissipation structure of a machine tool power tool turret is poor in universality, and the internal space of the power tool turret is difficult to protect when cooling and heat dissipation are executed. The semiconductor hot end plate, the semiconductor cold end plate, the heat conduction embedded pipe and the refrigeration contact plate are arranged, the refrigeration mechanism and the circulating heat exchange mechanism are arranged on the tool turret box, heat exchange can be conducted on heat dissipation of the power tool turret in a concentrated mode, and the forced heat dissipation effect and stability of the heat dissipation structure of the power tool turret are improved; the influence of the heat dissipation structure on the size of the power tool turret is reduced; by arranging a heat conduction fixing sleeve, a bundling spring, a heat absorption exchange plate set, a telescopic matching cover and an electromagnetic rotating blade, the continuity of heat exchange and transfer in the power tool turret is improved, the possibility that a circulating medium carries impurities to enter the power tool turret is reduced, and the safety of heat dissipation work of the power tool turret is improved; the heat dissipation effect can be improved while a part of vibration of the power tool turret is absorbed.

The invention relates to the technical field of environment management, and discloses an eco-friendly urban environment design implementation method, which comprises the following steps: S1, constructing a distributed clean energy system: realizing local energy production, storage and allocation through micro-grid and regional collaboration; s2, establishing an environment monitoring and response system: acquiring data through a sensor network, and implementing hierarchical response; s3, resource demand prediction and scheduling are realized: resource demands are predicted by using a dynamic model, and multi-level scheduling optimization is carried out; s4, establishing an ecological building and community treatment system: intelligently regulating and controlling the temperature and humidity of the building, and constructing a community water resource circulation system; and S5, designing a public participation incentive platform: providing an incentive mechanism to encourage environmental protection behaviors. Through the distributed clean energy management system, localized production, storage and flexible allocation of energy are realized, and meanwhile, the energy is intelligently scheduled by adopting an optimization algorithm, so that the supply and demand balance of the energy is realized, and the utilization rate of the clean energy is improved.

The invention discloses a segmented combined type worm grinding wheel based on spiral surface structuring and a laser finishing method, and belongs to the technical field of precise gear grinding. The working surface of the inner side of a spiral tooth groove of the worm grinding wheel at least comprises a section of structured area and a section of unstructured area in the axial direction; the structured area is provided with a crescent groove used for forming a grinding fluid storage and abrasive dust discharge channel in the grinding process. And the unstructured area keeps a continuous grinding surface and is used for finishing the surface of the machined workpiece in the structured area. According to the method, the laser processing head is controlled through multi-axis linkage to accurately describe an arc-shaped processing track in a spiral expansion coordinate system, the morphology consistency and the space precision of grooves are guaranteed, and the manufactured worm grinding wheel has good cooling, chip removal and accurate grinding performance and is suitable for high-efficiency and high-precision gear manufacturing.

The present invention relates to the field of edible oil processing equipment, and discloses a peanut oil blank steaming pot, which comprises: a steaming mechanism used for storing and steaming materials so as to complete softening and sterilization work of peanuts; the material spreading mechanism is arranged in the cooking mechanism and is used for pushing up the cooked materials to replace the materials in contact with the cooking mechanism, so that the problem of adhesion caused by long-time cooking is avoided, and meanwhile, the materials are uniformly in contact with the cooking mechanism; the screening mechanism is arranged on the upper side of the cooking mechanism, and the screening mechanism comprises a shaking assembly and a connecting assembly. According to the invention, through a scraping plate, a material turning plate I and a material turning plate II which are obliquely arranged in the material spreading mechanism, uniform turning of materials is realized, the materials are ensured to be fully heated in the cooking process, the phenomena of wall adhesion and local overheating are avoided, the cooking uniformity and efficiency are greatly improved, an ideal pretreatment state is provided for subsequent squeezing, and the production cost is reduced. Therefore, the oil yield and the oil quality are improved.

The invention discloses a biological agent for preventing and treating panax notoginseng root rot, and relates to the technical field of biological prevention and treatment, the biological agent is composed of four layers of functional florae: an A layer of sentinel-decoding flora is used for identifying a pathogen quorum sensing signal and is used as an event trigger source, a B layer of metabolic countering flora is used for decoupling conversion of disease-promoting saponin and controllable release of a metabolic false substrate, and a C layer of functional florae is used for controlling root rot of panax notoginseng. The C-layer self-healing conductive biological membrane construction flora forms a biological membrane with conductivity and self-healing capability on the root surface, and the D-layer electrically-enabled flora constructs stable biological micro-current at the rhizosphere by using ferric oxide particles as external electron acceptors. The layer A triggers to cause controlled release of the layer B, a conversion product of the layer B provides a carbon source and a structural unit for the layer C, and a conductive network of the layer C and the layer D form an electronic path. The biological agent is used for early recognition and continuous inhibition of pathogens in panax notoginseng planting soil, can start defense response in the early stage of quorum sensing signal occurrence, and keeps action stability under complex environmental conditions.

The invention relates to the technical field of riparian zone ecological restoration, and discloses a riparian zone staged progressive ecological restoration method which comprises the following steps: dividing a dry area and a wet area according to a riparian zone shoreline, respectively laying a base layer protective layer and a double-layer base, laying an aquatic plant lawn and fixing the root after water flow erosion, deposition operation and standard judgment, and finally, carrying out ecological restoration. And finally, observing the rooting state and carrying out maintenance and complementary planting, and synchronously collecting data in each link and adjusting as required. Through staged refined operation, in combination with core links such as data acquisition, analysis and judgment, base laying optimization, deposition regulation and control and plant maintenance, orderly promotion of ecological restoration of the riparian zone is achieved, and pertinence and continuity of the restoration process are guaranteed.

The invention belongs to the field of information storage, and relates to an information encryption method and an information decoding method based on non-natural DNA, and the information encryption method based on the non-natural DNA comprises the following steps: 1) obtaining an information encryption storage medium; 2) performing binary coding on the target information; and (3) endowing the information encryption storage medium obtained in the step (1) into a corresponding bit of the binary code obtained in the step (2) to complete target information encryption. The non-natural DNA-based information decoding method comprises the following steps: 1) acquiring an information encryption storage medium corresponding to target information; and 2) detecting the information encryption storage medium in the step 1) in real time by using different secret keys based on a nanopore channel single molecule analysis technology, and decoding the target information.The invention provides the information encryption storage and decoding method which is higher in storage density, higher in reading efficiency and safer in information.

The utility model discloses a soluble slow-release acupuncture needle, which relates to the field of medical instruments and comprises a needle handle and a needle body, a clamping mechanism is arranged at the bottom of the needle handle, and the root of the needle body is inserted into the bottom of the needle handle and is fixed by the clamping mechanism; the needle body comprises a fish glue layer, a net-shaped medicine storage layer and an agarose layer, the fish glue layer, the net-shaped medicine storage layer and the agarose layer are sequentially arranged from outside to inside, a cavity is formed in the agarose layer, and the cavity is of a centipede-shaped structure; step-by-step release of the medicine is achieved, and the medicine and physical stimulation of the needle body jointly play a role; the dual curative effects of needle and medicine combination are achieved in the treatment process, and the treatment effect and the patient experience are greatly improved; based on the reusable design of the needle handle, the economical efficiency and practicability of the acupuncture needle are further optimized; the problems that in the traditional acupuncture treatment process, medicine release is not uniform, and the medicine effect maintaining time is insufficient are effectively solved, and the more accurate and continuous treatment effect is provided for patients.

The present invention discloses a method and system for intelligent analysis, prediction and early warning of the health status of chronic kidney disease, and relates to the technical field of medical data analysis and prediction. The method for intelligent analysis, prediction and early warning of the health status of chronic kidney disease obtains several historical health measurement data of the patient, and the historical health measurement data includes historical blood data, historical urine data, and historical physiological data; the historical health measurement data of each time of the patient is evaluated and analyzed respectively. The present invention integrates and dynamically analyzes the historical blood, urine and physiological data to construct a health assessment index for each time, and combines these indexes to form a comprehensive view of the health status of the kidney. Compared with traditional methods, this method can more accurately predict changes in renal function and potential lesions by considering multiple health dimensions and using trend analysis of historical data, and solves the problem of misjudgment that may be caused by a single data point in the prior art.

This invention relates to the field of wastewater treatment technology, and in particular to a microfiltration wastewater treatment device for industrial wastewater turbidity removal. The device includes a treatment cylinder and an L-shaped wastewater pipe installed at the top of the treatment cylinder. A swinging filter assembly is installed at the top inner part of the treatment cylinder. The swinging filter assembly shakes and filters the wastewater. The swinging filter cartridge within the swinging filter assembly swings and moves the filtered impurities. During the swinging process, the swinging filter assembly throws out the wastewater while simultaneously causing the filtered impurities to flow. This invention achieves dynamic separation through swinging filtration, combined with real-time self-cleaning via rotating scraping. The filter cartridge is automatically cleaned by a torsional brush assembly. A fixed filter cartridge with a blocking filter assembly effectively blocks filtration and also possesses a self-cleaning function. This allows for the simultaneous and continuous execution of filtration and cleaning processes, significantly improving wastewater turbidity removal efficiency and the stability and durability of the equipment operation.

The invention relates to the technical field of landscape ecological energy devices, in particular to a landscape stepping stone self-energy-supply module structure based on wind and tide composite energy, which comprises an energy supply module mechanism consisting of a buoyancy base, two transmission main shafts, stepping stone panels mounted on the two transmission main shafts, a wind wheel and a tide turbine, a partition plate is arranged in the buoyancy base and divides the interior of the buoyancy base into an upper cavity and a lower cavity, water quality improving modules are arranged on the upper cavity and the buoyancy base, and the wind wheel and the tidal turbine drive the independent generators respectively and are electrically connected in parallel, so that the wind energy power generation module and the tidal energy power generation module are independent from each other. When one energy supply has a problem, such as insufficient wind power or unstable rotating speed of the tidal turbine caused by tidal change, the other module can still work normally, so that the stability and reliability of the whole power generation system are ensured, the continuity of energy supply is improved, and the power generation efficiency is improved. Meanwhile, redundant mechanical kinetic energy is utilized to actively improve and detect the ecological environment of the water body.

The invention discloses a submerged piston cooperative drive engine and a power generation and control method. The submerged piston cooperative drive engine comprises an engine supporting mechanism system, a piston cylinder, a gravity box, a submerged piston, a piston motion controller, a piston constant angle control switch, a starting and braking system and the like. After liquid is injected into the piston barrel and the gravity box, the submerging piston does circulating reciprocating motion along the piston barrel under the synergistic effect of liquid buoyancy and self gravity, so that the submerging piston and liquid on the left side and the right side of the center shaft of the engine continuously generate torque difference and gravitational torque difference, and the engine is driven to rotate; and high-quality power is continuously provided for a generator, traffic transportation equipment and industrial equipment. The whole power generation and use process does not need to consume any fossil energy and nuclear materials such as coal, petroleum and natural gas, and does not need unstable natural forces such as wind power, river water, sea waves, tides, terrestrial heat and solar energy. The invention creates a brand-new power system and a creative power generation mode.

The invention discloses a muck-based lightweight porous filling body for purifying waste gas and waste water and an application method of the muck-based lightweight porous filling body, a plurality of mutually communicated pores are formed on the muck-based lightweight porous filling body, and the pores are loaded with a purifying material which can purify waste water and / or waste gas passing through the pores. Compared with a traditional closed hole type porous filling body, the muck-based light porous filling body in the technical scheme belongs to an open hole type, has high adsorption capacity, and can be used as a multifunctional purifying body to provide a purifying function for low-concentration wastewater purification and waste gas treatment after being loaded with a purifying material; therefore, the function of purifying the environment is realized on the basis of providing a filling function.

The application discloses a kind of artificial humic acid slow-release fertilizer based on lignocellulose fermentation residue and a preparation method thereof.The method uses lignocellulose fermentation residue as raw material, through alkali catalytic depolymerization and amino reaction, lignin is converted into artificial humic acid, and combines hydroxyapatite to load nutrients such as nitrogen, phosphorus and potassium, to construct a three-dimensional slow-release network structure with carboxymethyl cellulose-calcium chloride ion crosslinking system, and artificial humic acid slow-release fertilizer is prepared.The slow-release fertilizer of the application has excellent slow-release performance, and the nutrient elements can be released stably, which improves the utilization rate of fertilizer, reduces nutrient loss, has soil improvement and slow-release fertilizer efficiency, and is suitable for facility agriculture, ecological restoration and sustainable agricultural development.

The utility model discloses metal crushing and grinding equipment for special alloy processing, which comprises a bottom plate, a frame body is arranged at the top of the bottom plate, a crushing groove is arranged on one side of the top between the inner sides of the frame body, a crushing mechanism is arranged in the crushing groove, a grinding groove is arranged in the middle of one side of the top of the bottom plate, and a grinding mechanism is arranged in the grinding groove. And a grinding mechanism is arranged in the grinding groove. The feeding assembly is arranged on the other side of the top end of the bottom plate, during use, metal needing to be crushed and ground is placed on a feeding belt, meanwhile, a conveying motor is started to drive a rotating shaft to rotate clockwise and drive a rotating cylinder to rotate, and when the rotating cylinder rotates, the feeding belt is driven to move to convey the metal upwards into a crushing groove; and meanwhile, the situation that the metal slides downwards and cannot be conveyed upwards during conveying can be avoided through the anti-skid barrier strips, so that the effect of continuously and efficiently feeding the metal needing to be crushed and ground is achieved, and the continuity of equipment operation is greatly improved.

The utility model relates to the field of hydraulic devices, in particular to a hydraulic pressurizing device which comprises a shell, a normal-pressure cavity is formed in the shell, a pressurizing cavity communicated with the normal-pressure cavity is further formed in the shell, and a piston rod is connected in the pressurizing cavity in a sliding mode. The shell is provided with an oil inlet through which hydraulic oil flows into the normal pressure cavity so as to drive the piston rod to extrude into the pressurizing cavity, an oil outlet through which high-pressure hydraulic oil is output to the outside from the pressurizing cavity, and an oil drainage port through which the hydraulic oil flows out from the pressurizing cavity; the shell is provided with a control valve used for controlling the flow direction of hydraulic oil so as to drive the piston to move in a reciprocating mode, and the oil inlet, the normal pressure cavity, the oil drainage opening and the pressurization cavity are all communicated with the control valve. The hydraulic supercharging device has the effects that the use convenience of the hydraulic supercharging device is improved, and supercharging can be directly completed by means of hydraulic power of the injection molding machine.

The invention discloses a sterile disinfectable mouse excrement classified collection device which comprises an experimental cage, a plurality of partition plates are arranged in the experimental cage to divide the experimental cage into a plurality of compartments to realize classified placement of a plurality of mice, and a mouse activity layer assembly is arranged in each compartment. Excrement collecting assemblies are arranged at the bottoms of the mouse activity layer assemblies, a first synchronous belt and a plurality of rotating discs are driven to rotate by utilizing timed starting of a motor, so that a second transmission belt and first transmission equipment are driven to continuously change an inclined state and a horizontal state, and the sterile mouse living experiment cage is realized in the process; regular work and rest of mice are achieved, mouse feces can be conveniently known and collected at regular time for collection experiments, the effects of classified collection, sterile collection and automatic timing collection are achieved, and the whole process is more controllable for experimenters.

The present invention discloses an environmental situation awareness data engineering system based on multi-source data fusion, which relates to the technical field related to environmental situation awareness, including a multi-source data acquisition module, a multi-source data processing module, an environmental evolution analysis module, an ecological restoration assessment module, an ecosystem evolution module and a visualization observation module. The present invention also discloses an environmental situation awareness method based on multi-source data fusion, including collecting environmental data, effectively integrating the data, using model evolution trends and prediction results and the possible impact of environmental changes on human behavior, and presenting them to end users in charts. The UEB model of the present invention is applicable to a variety of climate and terrain conditions, and has high accuracy and reliability in complex environments of high-cold plateaus. The UEB model can help analyze and predict the impact of human activities on environmental elements, as well as the impact of environmental changes on human behavior, deeply explore the interaction between human activities and environmental changes, and provide insights for decision makers.

The utility model discloses a welding tooling applied to dissimilar materials relates to welding technical field, including the carrier plate for bearing copper material and aluminum material, and the carrier plate is provided with the fixture for fixing copper material and aluminum material two position, the welding tooling still includes the water tank of can accommodate carrier plate and make the cooling liquid can immerse the welding area between copper material and aluminum material, and the spray assembly of the fixed or movable mode to the welding area spray cooling liquid is selected. The utility model discloses through setting up the carrier plate of bearing copper material and aluminum material and fixed clamp, can ensure two kinds of to be welded material to keep stable relative position in the welding process, avoid because of the misplacement of welding thermal stress or mechanical disturbance, and the water tank of can accommodate carrier plate and make the cooling liquid immerse the welding area is integrated simultaneously, and the spray assembly of optional fixed or movable mode, make the tooling have the double function of whole immersion cooling and spray cooling.

The invention discloses a serial number distribution method and device, equipment and a storage medium, and relates to the technical field of big data. The method comprises the following steps: responding to a serial number acquisition request of a request end, applying for a number segment from a pre-configured serial number database according to the serial number acquisition request, and storing the applied number segment into a main number segment cache region; if it is determined that the main number segment cache region meets a cache region replacement condition according to the serial number consumption rate of the main number segment cache region, asynchronously starting a standby number segment cache region; if it is determined that the serial number use condition meets a switching condition according to the serial number use condition of the main number segment cache region, switching the standby number segment cache region to the main number segment cache region; and distributing a serial number for the request end in the main number segment cache region by adopting an atomic incremental operation. According to the scheme, the serial number is distributed to the request end by asynchronously preloading the new number segment and switching the cache region, so that the continuity and availability of serial number distribution are improved.

The invention discloses a progressive ballistocardiogram signal-based identity database construction method, an identity recognition method and device and a storage medium, and belongs to the technical field of biological recognition. The method comprises the following steps: collecting ballistocardiogram signals of a plurality of users, and storing the ballistocardiogram signals in a two-tuple of time and amplitude to obtain original signals; the original signals are preprocessed, and invalid signal segments are removed; performing signal decomposition on the preprocessed signal by using a plurality of time sequence prediction modules, and extracting cardiac beat signal segments; performing random masking and signal reconstruction on the heart beat signal to obtain an intermediate feature vector, and performing comparative learning and metric learning based on the intermediate feature vector to obtain an identity feature vector of the user; and taking the feature vector set of each user as a cluster, determining the center of each cluster, and constructing a target identity database. And an efficient, accurate and stable sign state monitoring algorithm is realized, so that accurate and efficient identity recognition is realized.