158results about How to "Optimize quantity" patented technology

The invention belongs to the technical field of distributed databases, and particularly relates to a decentralized copy control method of a distributed database, which comprises the following steps: step 1, copy management: determining the number and storage positions of copies according to data volume and system load requirements, and reasonably distributing data copies to different nodes; 2, replica consistency: selecting a consistency model to balance system performance and data consistency requirements; 3, synchronizing the copies: determining a data synchronization strategy between the copies, and adjusting according to the real-time requirement of the system; 4, conflict detection and resolution: detecting data conflict by using a timestamp, a version number or a logic clock mechanism, and designing a conflict resolution strategy; and 5, replica recovery: monitoring the state of each node, quickly detecting replica faults, and recovering data from other replicas. The stability, reliability and performance of the distributed database system can be effectively improved, and the distributed database system adapts to constantly changing service requirements.

The invention discloses an optimization method of a resistive three-input majority logic circuit, which comprises the following steps of: calculating an optimal resistive three-input majority-inverter graph RM3IG of all four-input NPN Boolean functions by utilizing an accurate comprehensive algorithm based on Boolean satisfiability SAT and NPN equivalent classification, and establishing an offline database; converting the input circuit into an RM3IG structure through a graph mapping algorithm and an offline database; based on the algebraic property of the RM3 logic, an inverter transmission rule in the RM3IG structure is provided, the number of inverters in the RM3IG structure is optimized, finally, the inverters in the RM3IG structure are represented by using the RM3 logic, and a logic circuit only taking the RM3 logic as a basic operation set is obtained. According to the method, the area and delay of a logic circuit taking RM3 logic as a basic operation set are effectively reduced, and particularly, when the method is applied to a memristor circuit, the number of required memristors can be remarkably reduced, and the design cost is reduced.

The invention discloses a carbon dioxide adsorbent and a preparation method and application thereof.The preparation method comprises the following steps that a biological shell material is cleaned and then dried, the pretreated biological shell material is ground, and coarse shell powder is obtained; sequentially calcining and grinding the coarse shell powder in a protective atmosphere to obtain shell micro powder; mixing the shell micro powder with a magnesium oxide solid phase, calcining in a protective atmosphere, and grinding to obtain the carbon dioxide adsorbent. According to the invention, a solid-phase mixing method is adopted, and the marine biological waste with specific content and magnesium oxide are mixed, so that the mutual cooperation and mutual synergism among the raw material components can be fully exerted, the element composition and microstructure of the adsorbent material can be effectively regulated and controlled, and by virtue of the preparation method which is easy to operate and low in cost, the adsorbent material can be prepared. The obtained novel carbon dioxide adsorbent can improve the CO2 adsorption capacity and cycle stability of MgO, and can stably maintain high carbon dioxide adsorption rate and adsorption capacity for a long time.

The invention relates to the technical field of water conservancy and municipal administration, in particular to a reinforcement calculation method for a non-rod system reinforced concrete structure, which comprises the following steps: replacing long and thin pile and rod structures with one-dimensional units, replacing pier, wall, plate and beam structures with two-dimensional units, and carrying out coupling connection on a whole hydraulic structure model; original three-dimensional entity unit finite element calculation is equivalently converted into one-dimensional line unit, two-dimensional plate unit and three-dimensional entity unit coupling structure finite element calculation; displacement, internal force and stress of all parts of the hydraulic structure are obtained, and structural reinforcement is conducted through the internal force according to a structural mechanics method adopted by the rod system reinforced concrete structure. Compared with the prior art, the method has the advantages that the internal force of each part of the building can be directly obtained, the structure stress can be truly reflected, the structure reinforcement mode and number can be optimized, and the original complicated non-rod-system reinforced concrete structure can be subjected to structure reinforcement according to a structural mechanics method adopted by the rod-system reinforced concrete structure.

The invention belongs to the technical field of cable supports, and particularly relates to a cable erection supporting device which comprises a bottom plate, symmetrical supporting plates are fixedly arranged on the upper side wall of the bottom plate, a limiting plate is fixedly arranged at the upper ends of the two supporting plates, and the number of cables needing to be erected can be conveniently adjusted according to the number of the cables needing to be erected. The extension length of a second adjusting plate in the storage plate is adjusted, so that a corresponding number of first clamping plates are arranged at the upper end in a clamping manner, and the first clamping plates are matched with a threaded rod, a rotating pipe, a fastening bolt, a rubber pad and a second fixing pipe to clamp and fix a cable; through joint cooperation of a first fixing pipe, a threaded rod, a rotating pipe, a fastening bolt, connecting rods, rubber pads and second fixing pipes, the angle of the two connecting rods can be adjusted when a cable needs to be erected at a bending angle, so that the two second fixing pipes and the first fixing pipe form a triangle, and the cable is erected conveniently. And the cable can be bent at an angle during erection, so that the erection requirement is met.

The embodiment of the invention provides an ionization layer electron density inversion method, device, system and equipment and a medium. The method specifically comprises the following steps: determining a target area of electron density inversion; obtaining observation data corresponding to the signal link in the target area; the signal links comprise a first signal link from a GNSS satellite to a ground station, a second signal link from the GNSS satellite to a low earth orbit satellite, and a third signal link from the low earth orbit satellite to the ground station; determining the slant total electron content corresponding to the signal link according to the observation data corresponding to the signal link; solving an ionized layer chromatography function according to the oblique total electron content corresponding to the signal link so as to obtain an electron density value of a grid in the target area; the ionized layer chromatography function is used for representing a mapping relation between the oblique total electron content and the electron density value of the grid. According to the embodiment of the invention, the inversion precision of the ionosphere electron density can be improved.

The invention discloses a ternary sand-fixing water-retaining seepage-proofing fertility-increasing vegetation restoration and reconstruction method, and relates to the technical field of operation methods of sand ecological restoration, and the method comprises the following steps: S1, laying a layer of seepage-proofing material on the surface layer of a target planting area to reduce water seepage and enhance soil water-retaining capacity; s2, mixing a water-retaining agent with local sandy soil to form a water storage layer, and paving the water storage layer on the surface of the impermeable material to ensure that the plant root system can obtain water for a long time; s3, applying an organic fertility intensifier to the water storage layer to improve the organic matter content and nutrient supply capacity of the soil; s4, appropriate plants are selected for planting, after planting, the vegetation growth condition and the soil humidity are checked regularly, a water-retaining agent and an organic fertility increasing agent are supplemented in time according to needs, and it is ensured that the vegetation can grow healthily. The planting method provided by the invention has a remarkable yield increasing effect, the survival rate of plants can be effectively improved, and the effect of fixing sand for a long time is achieved.

The invention discloses a high-efficiency converter for adjusting the voltage of a power grid, and belongs to the technical field of power electronics. The converter comprises a first voltage regulation circuit, a second voltage regulation circuit, a filter circuit, a detection circuit and a control circuit. By detecting the amplitude difference between the power grid voltage and the load voltage, the control circuit automatically switches the Buck working mode or the Boost working mode, and stable alternating current output in a wide input voltage range is achieved. The invention has the advantages of compact structure, high efficiency, fast response, small harmonic wave and the like, and is suitable for industrial and civil occasions with large-range fluctuation and frequent power grid voltage.

The invention belongs to the technical field of unmanned aerial vehicles, and discloses a reconfigurable antenna array based on a combinable and separable unmanned aerial vehicle group, the antenna array is carried on the unmanned aerial vehicle group, and the unmanned aerial vehicle group comprises a plurality of carrying antenna transmitting systems, antenna receiving systems and a plurality of unmanned aerial vehicle units which do not contain antenna sub-arrays but carry other functions. Through three arrangement modes of the antenna array, multi-functionalization of the airborne antenna array of the unmanned aerial vehicle is realized, such as high-resolution two-dimensional imaging, high-resolution three-dimensional imaging, accurate positioning of a specified target, tracking of the specified target, monitoring of a specified airspace and the like. The first unmanned aerial vehicle group is linearly arranged in a single layer, and an antenna array forms a synthetic aperture radar antenna in the movement of the unmanned aerial vehicle group, so that a high-resolution two-dimensional imaging function can be realized; the second type of unmanned aerial vehicle group is arranged in a single-layer two-dimensional array, and the specified target can be accurately positioned when the unmanned aerial vehicle group hovers.

The invention discloses a matrix type temperature detection system and method based on temperature-sensitive diodes, the problems of complex wiring and large temperature drift of a traditional multi-node temperature measurement system are solved through M * N matrix layout, row and column time-sharing gating and constant current driving technologies, the system adopts an independent column constant current source to ensure the measurement consistency, and a high-precision ADC and a dynamic calibration algorithm are combined, so that the measurement accuracy is improved. And the precision of + / -0.2 DEG C is realized within the range of 50-150 DEG C. The method is particularly suitable for high-density temperature measurement scenes such as battery thermal management, electronic equipment overheating monitoring and the like.

The invention discloses a preparation method of oversized cubic calcium carbonate with controllable particle size, which comprises the following steps: adding a saccharide additive into a CaCl2 solution, and uniformly mixing to obtain a CaCl2 mixed solution; then placing the CaCl2 mixed solution in a carbonization tower, slowly adding Ca (OH) 2 as a pH regulator into the CaCl2 mixed solution, and preparing large cubic calcium carbonate at 25 DEG C by a carbonization method; by monitoring the reaction pH value, stopping introducing CO2 when the pH value is about 7, separating a product through suction filtration, and then drying to obtain the large cubic calcium carbonate. Large cubic calcium carbonate is prepared through a carbonization method, the large cubic calcium carbonate with different sizes is obtained by controlling the pH value of a reaction system, the maximum particle size can reach about 30 microns, and the monodispersity is good.

The utility model relates to the technical field of nitriding furnaces, in particular to an inlet air cooling device of an ultra-deep well type nitriding furnace, which comprises a fan connected to the nitriding furnace and used for cooling inlet air, a butterfly valve for adjusting the inlet air rate is additionally arranged on the fan, and the pipeline joints of the butterfly valve, the nitriding furnace and the fan are all arranged to be of flange structures. A plurality of arc-shaped rings which can stretch out and draw back in the arc direction are installed on the connecting face through bolts, the arc-shaped rings form a closed ring body structure after being stretched, and the outer portion of the ring body structure is sleeved with a sealing ring used for sealing and isolation. The number of parts required for assembly is reduced, and meanwhile, a stable supporting effect on the sealing ring is achieved, so that all joint surfaces of the nitriding furnace are tighter, and air cooling is smooth and free of leakage; by additionally arranging the rotatable L-shaped limiting plate, additional locking and supporting effects are provided for the joint face, and the sealing performance of the flange joint is enhanced.

The invention belongs to the technical field of crop planting, and discloses a method for improving lettuce seedling culture quality under a weak light background. The method comprises the following steps: accelerating germination of lettuce seeds, and sowing the lettuce seeds after the lettuce seeds are germinated for 1-2 days; sowing and seedling raising are conducted on the seeds with white buds; wherein in the sowing and seedling raising stage, the seedling raising environment temperature is controlled to be 23-25 DEG C, the relative humidity is maintained to be 60%-70%, the white light intensity is set to be 120 mu mol / m < 2 > / s according to the weak light irradiation intensity, the light period is 14 h / 10 h, 100 mu mol / m < 2 > / s red and blue light is supplemented, and the light quality of the red and blue light is 7: 3 or 2: 3. Compared with an existing light supplementing technology, the low-light environment is considered, red light and blue light are supplemented after the low-light environment serves as background light, input of light supplementing light intensity can be reduced in actual application, and input of electric energy is reduced to a certain degree. According to the scheme, the seedling raising effect is obviously improved, and the seedling strengthening index, the whole plant dry weight and the leaf number are obviously increased.

The utility model provides an efficient hot water type lithium bromide absorption unit arranged in a left-right structure, an evaporator, an absorber and a generator all adopt two-stage heat exchange, a condenser adopts single-stage heat exchange, and the unit mainly comprises two independent solution circulation loops and a refrigerant pipeline, the first-stage generator and the second-stage generator, the second-stage evaporator and the first-stage evaporator, and the second-stage absorber and the first-stage absorber and the condenser are connected in series through pipelines; the unit is arranged in a left-right structure, the first-stage generator and the second-stage generator and the condenser are arranged in a left-right mode, the first-stage absorber and the first-stage evaporator are arranged in a left-right mode, and the second-stage absorber and the second-stage evaporator are arranged in a left-right mode. According to the unit, the consumption of high-grade heat energy is reduced or replaced by recovering medium-low-temperature waste heat water in a factory, so that the comprehensive utilization efficiency of energy is improved, meanwhile, the left-right structural arrangement is beneficial to the compactness of the overall structure of the unit, and the occupied area is reduced.

The invention provides a method for preparing an anti-corrosion composite coating of a PEM metal bipolar plate and a composite coating, the method for preparing the anti-corrosion composite coating of the PEM metal bipolar plate comprises the following steps: step S1, polishing the surface of a metal substrate, then cleaning by adopting an automatic cleaning assembly line, a rust remover or a hydrochloric acid solution, and then cleaning by adopting an automatic cleaning assembly line; drying at constant temperature for later use; the method has the beneficial effects that aiming at the limitation of the precious metal coating of the existing PEM electrolytic cell on industrial production, a large number of comparative research experiments are performed for reducing the use of the precious metal coating, the non-precious metal coating is used, the use of the precious metal coating is reduced, and the research in the aspect of an efficient coating production process is performed; and a set of engineering coating technical scheme with excellent performance and low cost is formed.

The present invention discloses a flexible pressure sensor based on a liquid metal composite material, which comprises: a liquid metal composite material layer, a liquid metal electrode layer and a flexible packaging layer arranged in sequence from the inside to the outside; the liquid metal electrode layer is arranged on the upper and lower sides of the liquid metal composite material layer, and the flexible packaging layer is used to encapsulate the liquid metal electrode layer; wherein the liquid metal composite material layer comprises a flexible polymer substrate and a plurality of liquid metal marbles arranged in the flexible polymer substrate, the liquid metal marbles are composed of internal liquid metal droplets and an external wrapping layer, and the external wrapping layer is metal nickel powder. Correspondingly, the present invention also discloses a preparation method, which is used to prepare the above-mentioned flexible pressure sensor of the present invention. The flexible pressure sensor designed by the present invention has the characteristics of good flexibility, strong conductivity, high piezoresistive sensitivity, etc., and has good promotion prospects and application value.

The invention relates to the field of non-motor vehicle management systems, in particular to a non-motor vehicle integrated management system based on an ultrahigh frequency RFID (Radio Frequency Identification Device) technology, which comprises a radio frequency identification module, an intelligent prediction module, a block chain module and an anti-theft alarm module which are in wireless communication connection, life cycle management, real-time positioning and dynamic trajectory tracking of non-motor vehicles are realized; the intelligent prediction module is used for intelligently analyzing and predicting the use frequency, the moving path and the parking position of the non-motor vehicle, and optimizing urban traffic planning and parking resource configuration; the block chain module is used for guaranteeing the safety and non-tampering of the vehicle data through a block chain layer; and the anti-theft alarm module is used for automatically triggering an alarm for the non-motor vehicle which illegally moves or is forbidden to enter an area, and sending a real-time notification to a management department and a vehicle owner. Traffic planning and parking resource configuration can be optimized, safety management is enhanced, and management transparency and user credibility are improved.

The utility model relates to the technical field of fishing tackles, and discloses a fishing rod convenient to splice and extend, which comprises a mounting grip, an assembling upright post arranged at the front end of the mounting grip, an additional fishing rod arranged at the front end of the assembling upright post, and a connecting stud fixedly mounted at one end, close to the mounting grip, of the assembling upright post, according to the assembling structure, by arranging the assembling stand columns of the assembling structure, when the equipment is assembled, a certain number of assembling stand columns are selected according to the needed extending length, the multiple assembling stand columns are spliced end to end and then inserted into the front end of the mounting grip, and the assembling stand columns are connected through the connecting inserting grooves. The tail portion of the fishing rod is inserted into the connecting inserting groove formed in the front end of the assembling stand column, the assembling stand column is rotated and locked, then assembling is completed, and the fishing rod can be used in the follow-up process. The multiple assembling stand columns serve as extending components, and the extending length of the installed fishing rod is increased after the multiple assembling stand columns are assembled; the number of freely combined and assembled stand columns is more convenient to use.

The invention discloses a cigarette delivery identification code marking system which comprises a sorting system, a code spraying control system, a detection probe and a code spraying machine. The sorting system is used for sending a user switching signal to the code spraying control system; the code spraying control system is used for sending an identification code to the code spraying machine; the detection probe is used for detecting cigarette cartons on the sorting line; the code spraying machine is used for spraying identification codes to the side ends of the cigarette cartons when the detection probe detects that the cigarette cartons pass through; before the sorting system does not send out the user cutting signal, the code spraying machine sprays the identification code of the same user at the side end of each cigarette carton, when the code spraying control system receives the user cutting signal of the sorting system, the code spraying control system sends the identification code of the next user to the code spraying machine, and the code spraying machine sprays the identification code of the next user at the side end of the subsequent cigarette carton. In the automatic sorting process, the side ends of the cigarette cartons can be subjected to jet printing, and merchant identification codes can be switched, so that even if the cigarette cartons of multiple households are loaded into one turnover box, the cigarette cartons can be quickly identified during delivery.

The application provides a vehicle path optimization method based on a dynamic constraint evaluation strategy multi-objective ant colony algorithm, and aims at a multi-constraint multi-objective vehicle path optimization problem. The application takes the number of vehicle uses and total driving distance as optimization targets, adopts a dynamic constraint evaluation strategy, divides a population into two sub-populations, uses a sub-population with evolution advantages to guide an ant colony to search, improves the convergence of a solution set, designs an evolution strategy based on Gaussian variation to search for a sub-population with strong constraint violation degrees, improves the diversity of optimal solutions, obtains an optimal vehicle path optimization scheme, reduces enterprise transportation costs, and increases logistics distribution benefits.

The invention relates to a traditional Chinese medicine composition, a pharmaceutical composition as well as a preparation method and application thereof, and the traditional Chinese medicine composition comprises the following raw materials in parts by mass: 3-15 parts of glossy privet fruit, 5-15 parts of semen cuscutae, 5-20 parts of semen cassiae, 3-13 parts of pipewort, 2-12 parts of scouring rush, 5-20 parts of radix paeoniae alba, 5-20 parts of radix puerariae and 5-15 parts of dendrobe. The pharmaceutical composition comprises the traditional Chinese medicine composition and nutrients, wherein the nutrients comprise one or more of a grape seed extract, fish oil powder and beta-carotene. After the components in the composition are reasonably combined, the composition has the advantages of being obvious in effect, lasting and stable in action and high in safety when being used for treating xerophthalmia; the traditional Chinese medicine composition can nourish liver and kidney, nourish blood and improve eyesight, clear heat and promote salivation, and regulate the functions of the body on the whole, and also can directly provide nutrient substances for eyes, improve the quality and quantity of tears, relieve eye inflammatory response, significantly relieve the symptom of xerophthalmia, and improve the living quality of patients.

The invention provides a traditional Chinese medicine composition for polycystic ovarian syndrome lipid metabolism disorder and application. The traditional Chinese medicine composition is prepared from the following raw material medicines in parts by weight: 125 to 500 parts of rhizoma atractylodis macrocephalae, 75 to 300 parts of radix bupleuri, 150 to 600 parts of herba artemisiae scopariae, 75 to 300 parts of fructus gardeniae, 125 to 500 parts of fructus citri sarcodactylis, 50 to 200 parts of fried semen ziziphi spinosae, 50 to 200 parts of fructus schizandrae, 75 to 300 parts of herba sedi and 75 to 300 parts of raw liquorice root. The traditional Chinese medicine composition disclosed by the invention is reasonable in proportion, can improve the reproductive function and lipid metabolism disorder of a mouse model with polycystic ovarian syndrome, and can improve the levels of triglyceride, cholesterol, free fatty acid and the like in HepG2 cell supernatant induced by DHT (docosahexaenoic acid). The traditional Chinese medicine composition disclosed by the invention is supported by a solid traditional Chinese medicine gynecologic classic theory and clinical and laboratory data, is definite in clinical curative effect, free of toxic and side effects and safe to take, and can be applied to preparation of medicines for treating polycystic ovarian syndrome lipid metabolism disorder.

The utility model relates to the technical field of biomimetic robots, in particular to a tensegrity biomimetic robot which comprises a first pressing rod, a second pressing rod, a third pressing rod, a fourth pressing rod, a fifth pressing rod, a sixth pressing rod, a plurality of drivers and a controller, the controller is located in the middle of a geometry formed by the pressing rods and electrically connected with the drivers, and inhaul cable assemblies are further installed between the drivers. According to the bionic robot, various forms can be changed, and the adaptability of the bionic robot is improved.

The invention discloses a multi-base-station deformation monitoring data processing method, and relates to the technical field of deformation monitoring, and the method specifically comprises the steps: 1, analyzing a deformation monitoring object, determining a deformation state, and dividing data types according to the deformation monitoring content; 2, noise reduction processing is carried out on the data of multi-base-station deformation monitoring in combination with different noise reduction methods; 3, determining standard state data of the deformation monitoring object based on the structure and material state of the deformation monitoring object; 4, based on the standard state data, analyzing deformation data of multi-base-station deformation monitoring in a current time period, and judging whether a deformation monitoring trend is controllable or not; noise reduction processing is carried out by combining a local mean decomposition method and an empirical mode decomposition method, the influence degree of noise signals on deformation monitoring data is further reduced, layout and number optimization of multiple base stations are achieved through comprehensive analysis of the deformation trend, and comprehensive coverage of a monitoring area and data accuracy are ensured.

The invention discloses an infrared touch point positioning scheme, comprising the following steps: setting the number of scanning directions k and the specific angle of each direction, setting a threshold value t1 of the number of unilaterally blocked light paths, a threshold value t2 of the number of different directions, and a threshold value t3 of the angle of light paths in different directions, performing a frame of scanning, counting the blocked light paths, and if both the X side and the Y side are blocked light paths at the moment, jumping to step S4, otherwise, if only the X side or the Y side is blocked light paths at the moment, the beneficial effects achieved by the invention include: the invention proposes a scheme idea of ​​performing point positioning only according to the X or Y unilateral light paths, and proposes a scheme idea of ​​judging whether to perform point positioning operation according to conditions such as the number of unilaterally blocked light paths and the angle between light paths with different slopes, thereby ensuring the accuracy of the final output point contour and point position, thereby reducing the probability of line breakage in fine pen writing, and at the same time being conducive to reducing the cost of the touch scheme (it can support reducing the number of lamp tubes), thereby achieving the purpose of improving the writing experience.

The utility model provides a battery cell shell and a shell processing device, the battery cell shell comprises a shell body with an opening at one end, the peripheral wall of the shell body is provided with two side wall parts which are oppositely arranged along the thickness direction of a battery cell, and a bulge which is arched outwards is formed on at least one side wall part of the shell body. According to the battery cell shell disclosed by the utility model, the bulge which is arched outwards is formed on at least one side wall part of the battery cell shell, so that limiting and supporting between two adjacent battery cell shells are facilitated, a gap can be formed between two adjacent battery cells, and the contact area between the two adjacent battery cells is reduced, so that heat transfer between the two battery cells is reduced, and the service life of the battery cell shell is prolonged. According to the invention, the thermal runaway influence can be reduced, the heat dissipation effect of the battery cell can be improved, and the bulges are directly formed on the side wall part, so that the number of parts can be reduced, and the assembly efficiency can be improved.

The invention belongs to the technical field of biology, and relates to a pharmaceutical composition containing mesenchymal stem cells and application. By controlling the using time, the medication mode and the dosage of the mesenchymal stem cells and the vitamin D, the synergistic effect of the mesenchymal stem cells and the vitamin D is achieved, the cortical bone mineral density can be effectively improved, meanwhile, the bone trabecula density and the bone trabecula cell density can be improved, and the bone quality is improved. In addition, during formation and distribution of the bone trabecula, the thickness of the bone trabecula, the distance between the bone trabecula and the number of the bone trabecula can be improved, and the biological performance of thighbone and lumbar vertebra bones is effectively improved. According to the technical scheme that the MSC and the RANKL inhibitor are combined for use, the MSC and the RANKL inhibitor have a synergistic effect, various functional indexes of osteoporosis can be comprehensively improved, obviously, the MSC and the RANKL inhibitor are combined for use, the thickness of bone trabecula, the distance between the bone trabecula and the number of the bone trabecula can be effectively improved, the biomechanical property of tibia is effectively improved, and a good reference basis is provided for clinical application.

The invention relates to the technical field of bearing fault diagnosis, in particular to a variable-speed bearing fault diagnosis method based on an improved crown porcupine optimized random forest, and the method comprises the steps: collecting a bearing vibration signal; converting the vibration signal from a time domain signal to an angle domain signal by using COT; searching a modal component and a penalty factor of the VMD by using OCSSA, obtaining an optimal IMF component by using a criterion of minimum envelope entropy, and extracting a fault feature vector; cPO is improved by using Logistic chaotic mapping and a cyclic population reduction technology; the number of decision trees and the depth of the trees of the RF are searched using the improved CPO. The problems that fault features of the variable-speed rolling bearing are not easy to extract, faults are difficult to recognize, and fault diagnosis and classification accuracy of the variable-speed rolling bearing is not high are solved.

The invention discloses a wild termitomyces albuminosus tending method, which belongs to the technical field of fungus cultivation, and comprises the following steps: (1) searching a point location where wild termitomyces albuminosus grows or a region where termites for cultivation move in a region where the altitude does not exceed 2500m and the termites for cultivation live, determining a wild termitomyces albuminosus unearthed point within a range of 0.5-3m from the center or a termite cultivation activity area as a tending point; (2) punching a plurality of pits in the tending points according to the soil thickness condition; putting materials which are fond of the termites for cultivation into the pits; and covering the distribution range of the pits with agricultural and forestry wastes, stacking into a food pile, covering, and managing the food pile and the soil around the tending point. The method solves the problems that existing wild termitomyces albuminosus propagation promotion cannot completely cover all habitats of termitomyces albuminosus, water and soil loss is easily caused, inoculation procedures are complex and the like, and water and soil conservation can be promoted while the yield of the wild termitomyces albuminosus is remarkably increased.