1802results about How to "Low input cost" patented technology

The invention discloses a knowledge graph-based nursing corpus automatic creation method, and relates to the field of artificial intelligence technology and medical information processing, and the method comprises a multi-dimensional data acquisition stage, a knowledge graph construction stage, a corpus automatic generation and updating stage, and a corpus quality control and evaluation stage. According to the automatic corpus generation method driven by the knowledge graph, dynamic generation and real-time updating of corpora are achieved by constructing an ontology structure, a corpus generation template and an updating algorithm in the nursing field; through a deep learning model and a transfer learning technology, new nursing knowledge and a diversified information structure are continuously introduced into the corpus, and the diversity of corpus content is increased.

The invention discloses a weeding path planning method for an agricultural weeding robot. The weeding path planning method comprises the following steps that 1, the weeding robot is started, and whether all sensors and cameras work normally or not is checked; 2, establishing a basic three-dimensional map of the farmland; 3, generating a real-time weed distribution map; 4, identifying the types and forms of the weeds, and marking on the farmland map; 5, generating an optimal weeding path; 6, in the advancing process of the robot, the path is dynamically adjusted to avoid crops; 7, according to the weed density and type, the robot executes a corresponding weeding strategy; 8, optimizing a weeding strategy and a path planning algorithm; and 9, after the weeding task is completed, the robot returns to the initial position or the charging station along the shortest path to prepare for next operation. The weeding efficiency and accuracy are improved, unnecessary repeated weeding and herbicide waste are reduced, and the weeding effect of the whole farmland is optimized.

The present invention provides a device and method for real-time monitoring of the movement trajectory of the rock layer on the top of a mine, and relates to the technical field of monitoring the movement of the rock layer on the top of a mine. The device for real-time monitoring of the movement trajectory of the rock layer on the top of a mine of the present invention has fewer parts and components, and the assembly process is simple and rapid when used on site. It can be assembled and used according to the actual length of the monitoring borehole in the monitoring of the top of a mine; the device for real-time monitoring of the movement trajectory of the rock layer on the top of a mine of the present invention has a simple structure, is easy to process and manufacture, uses fewer precision instruments inside, and the cost of the entire device is relatively low, which can reduce the investment cost of mine monitoring; the device for real-time monitoring of the movement trajectory of the rock layer on the top of a mine of the present invention is used to monitor the rock layer on the top of a mine in real time, and can monitor the movement trajectory of the roof rock layer in real time, accurately, and continuously, and provide more detailed rock layer information for the prevention and control of disasters such as mine pressure, rock layer control, and rock burst.

The invention relates to an MPRFS-based method for evaluating the efficiency of a gas-powder two-phase explosion suppressant in suppressing gas and coal dust explosion, and belongs to the technical field of coal mine underground gas and coal dust explosion protection. The method comprises the following steps: constructing a mathematical model for inhibiting gas and coal dust explosion by the gas-powder two-phase explosion suppressant; determining initial conditions, boundary conditions and input parameters of the numerical model; establishing a three-dimensional physical model of the explosion container; constructing a simulation calculation grid and a gas, coal dust and gas powder two-phase explosion suppressant distribution domain; creating a thermodynamic file and a reaction kinetics file of gas and coal dust composite explosion and explosion suppressant decomposition; developing a CFD (Computational Fluid Dynamics) numerical simulation solver and an OpenFOAM-Cantera coupling interface; solving a numerical model and correcting the model; and evaluating the explosion suppression efficiency of the gas-powder two-phase explosion suppressant. The method can effectively evaluate the inhibition effects of different gas-powder two-phase explosion suppressants in gas and coal dust explosion.

The invention discloses a data consanguinity acquisition method and device based on a large language model, a storage medium and a processor. According to the scheme, firstly, an SQL statement to be subjected to blood relationship analysis is obtained, and the SQL statement serves as input of a large language model; extracting metadata of a table involved in the SQL statement by utilizing the large language model; and finally, the large language model outputs a blood relationship analysis result containing the SQL statement according to the SQL statement and the metadata of the table involved in the SQL statement and the constructed cue word. Compared with the prior art that the data blood relationship information is obtained by manually analyzing SQL statements, the method has the advantages that the accuracy of data blood relationship analysis is improved by means of a large language model, professional knowledge of database experts is not relied on any more, a data blood relationship analysis function is achieved without writing complex codes, and the overall input cost is reduced. Compared with an analysis scheme in the prior art, the method has obvious advantages.

The invention relates to the technical field of photovoltaics, and discloses a TBC battery structure capable of automatically forming gap areas and a PVD preparation method thereof.The TBC battery structure comprises a silicon substrate, p + areas and n + areas are arranged on the back surface of the silicon substrate, the height positions of the p + areas and the n + areas on the back surface of the silicon substrate are staggered to form steps, and the steps are arranged on the back surface of the silicon substrate. A gap region is formed on the side wall of the step connecting the p + region and the n + region, and the gap region is used for electrically isolating the p + region and the n + region; the p + region comprises a first tunneling oxide layer, a p-poly layer, a second tunneling oxide layer and an n-poly layer which are sequentially deposited on the silicon substrate; and the n + region is provided with a second tunneling oxide layer and an n-poly layer which are sequentially deposited on the silicon substrate. According to the invention, the p-poly is superposed with the n-poly to form the tunnel junction, so that the n-poly on the p-poly can be directly prevented from being removed by using the second laser, the damage of the laser to the crystalline silicon layer on the surface is avoided, meanwhile, a laser grooving process is reduced, and the production cost is greatly reduced.

The invention discloses a method for improving an acidic clayey soil plough layer, which comprises the following steps of: 1, after autumn rice is harvested, draining water in a rice field, and carrying out conventional tillage, soil turning and leveling on the rice field for later use; 2, green manure planting is conducted in the suitable green manure sowing period from October to November; 3, in the full-bloom stage, green manure is smashed, turned, pressed and returned to the field, lime and organic fertilizer are spread, the rice field is deeply ploughed at a time, and the green manure, the lime and the organic fertilizer are deeply buried in soil of the rice field; 4, the rice field is irrigated and soaked in water for a period of time, and then rice is planted. The method can inhibit and stabilize acid, improve the buffer performance of the soil, effectively expand a deep ploughing layer, improve the physical structure of the soil and improve the utilization rate of rainfall resources by the soil, so that the purposes of minimal ploughing, high yield and farmland protection are achieved.

The invention provides a back contact solar cell and a preparation method thereof, and belongs to the technical field of solar cells, and the preparation method comprises the steps: depositing a tunneling oxide layer and a doped polycrystalline silicon layer on the back surface of an n-type silicon wafer, and sintering high-temperature silver paste in a pre-designed interdigital region of an N region on the back surface of the silicon wafer to form a first electrode; then, the tunneling oxide layer, the doped polycrystalline silicon layer and the mask layer in the interdigital region of the back P region are ablated through laser; depositing an amorphous silicon layer and a TCO layer on the back surface of the n-type silicon wafer; sintering low-temperature silver paste on the TCO layer of the P region to form a second electrode; and finally, scanning a grid line formed by sintering the high-temperature silver paste through laser, and melting the amorphous silicon layer, the TCO layer and the mask layer on the grid line and around the grid line, so that the first electrode is isolated from the second electrode. The high-temperature silver paste is used for partially replacing the low-temperature silver paste, so that the use cost of the paste is reduced; through laser scanning grid line ablation, a gap region does not need to be manufactured independently, the manufacturing process is simplified, and the manufacturing cost is reduced.

The invention provides a method for preparing a nitrogen-rich liquid fertilizer and a soil conditioner from agricultural biomass wastes, and belongs to the technical field of humic acid synthesis. According to the agricultural biomass waste treatment method, nano-bubble nitrogen sources are coupled with agricultural biomass waste for a hydrothermal reaction, and the nitrogen sources in the method serve as additives to provide nitrogen elements to improve the quality of humic acid and serve as catalysts to improve the yield; by adopting a nano bubble solution system, the contact area of a nitrogen source, agricultural biomass waste and water is increased, and the yield and quality of a product are improved. According to the method disclosed by the invention, the quality and yield of humic acid and hydrothermal carbon are improved, the content of nutrient elements such as nitrogen element in the product is increased, the problems of low nitrogen fertilizer utilization rate, single returning nutrient of fulvic acid, humic acid or hydrothermal carbon and the like are solved, and a new thought is provided for resource utilization of agricultural biomass wastes such as straws and the like.

The invention discloses a hierarchical photovoltaic string anomaly detection method based on a dimension reduction mode, and compared with an existing detection method, the method employs time sequence electrical quantity data and weather data as sample data, combines the dimension reduction mode and a hierarchical model training architecture, and achieves the detection of the anomaly of a photovoltaic string. A dimension reduction mode graph of time sequence electrical quantity data with weather labels is used as an anomaly detection model to be input, the model input cost is reduced, the model prediction accuracy is improved, and a dynamic prediction scene of a real photovoltaic power plant can be effectively dealt with; the invention further provides a visual analysis system based on the photovoltaic string anomaly detection method, the string anomaly recognition result of the anomaly detection model is supported to be displayed and analyzed, and the anomaly detection model is optimized through analysis of the anomaly result and simple labeling. A user is helped to quickly position an abnormal string through interactive operation and formulate a reasonable solution, and effective troubleshooting of a photovoltaic string fault is realized.

The invention discloses a single firmware debugging method based on dynamic repair, which comprises the following steps: replacing an original instruction at a target memory address with a stub, and inserting a user-defined callback function when firmware runs to the target memory address, thereby realizing debugging or user-defined processing on a specific memory address access event. The defects that in a traditional firmware debugging mode, hardware interface support is needed, and the real execution condition of firmware is difficult to reflect are overcome. And meanwhile, the repairing operation on the target memory address is completed in the dynamic running stage of the program instead of directly performing static repairing on the target memory address, so that the risk of equipment damage is remarkably reduced, the working efficiency is greatly improved, and the investment cost is reduced.

The invention discloses a Region-level remote disaster recovery method, system and device based on a Paas cloud platform and a medium, in the Paas cloud platform, a WAN optimization technology is adopted, and a data compression algorithm, an acceleration algorithm and a cache algorithm are adopted, so that the data transmission time delay and network congestion are reduced, and the data synchronization efficiency and speed are improved; a remote multi-activity technology is introduced, so that the main data center and the backup data center simultaneously provide services to the outside, high availability and disaster tolerance of services are ensured, the main data center is automatically switched to the backup data center when the main data center breaks down, and rapid fault switching is realized; a load balancing mechanism and a fault switching mechanism are adopted, the flow is automatically switched to the backup data center when the main data center breaks down, and rapid fault switching is achieved. By adopting the WAN optimization technology, the time and delay of cross-geographic-position data synchronization are reduced, and the reliability and real-time performance of data synchronization are ensured.

The invention relates to the technical field of Internet of Things, in particular to an Internet of Things intelligent linkage control method and an Internet of Things intelligent linkage control device, and the method comprises the steps: S1, obtaining the working state of home equipment and the real-time data of environment information, and transmitting the real-time data to a central control platform; s2, preprocessing the real-time data to obtain preprocessed data; s3, analyzing the preprocessed data, and generating a corresponding linkage control instruction; s4, encoding the linkage control instruction to generate encoded data, and performing lossless compression on the encoded data by adopting a ZSTD compression algorithm to obtain a compressed code; s5, searching an optimal sending communication network by adopting a flora optimization algorithm, and sending the compressed code to the home equipment; and S6, the home equipment decompresses the compressed code by using an LZMA compression algorithm, and executes the linkage control instruction. According to the invention, the ZSTD compression algorithm and the flora optimization algorithm are adopted, the delay of data transmission and processing is significantly reduced, the overall response speed of the smart home system is improved, and the user experience is better.

The invention relates to the technical field of seawater desalination, in particular to seawater desalination treatment equipment. The seawater desalination treatment can be realized without a filter, the accumulation of impurities on the outer wall of the ultrafiltration membrane structure is effectively reduced, the structural layout is scientific and reasonable, and the energy-saving and environment-friendly effects are realized; comprising a box body with an opening in the bottom, a settling seat assembly fixedly mounted at the bottom of the box body, a plurality of ultrafiltration membrane structures fixedly mounted on the top wall of the box body, a first vacuumizing pump, a piston plate mounted in the box body in an up-down sliding manner, a driving shaft fixedly mounted on the piston plate, a stretching floating mechanism and a counterweight assembly connected with the bottom of the piston plate, the piston plate is provided with a plurality of sealing scraping pieces which are matched with the ultrafiltration membrane structures and are correspondingly arranged, and the ultrafiltration membrane structures penetrate through the middle parts of the sealing scraping pieces; a one-way valve allowing seawater to enter the box body in a one-way mode is installed on the upper portion of the box body, the top of the driving shaft freely stretches out of the top of the box body, and the stretching floating mechanism comprises a floating piece and a traction rope.

The invention discloses a photovoltaic wastewater lime-process crystallization treatment process and a treatment system used by the same, which are characterized in that acid fluoride wastewater and alkali washing wastewater generated in a photovoltaic sheet production process are respectively collected by an acid fluoride wastewater collecting pool and an alkali washing wastewater collecting pool; the acid fluoride wastewater and a lime agent are subjected to a crystallization reaction in a crystallization fluidized bed to obtain calcium fluoride crystals, effluent of the crystallization fluidized bed and alkali washing wastewater are mixed in a secondary defluorination unit, and calcium chloride is added for a defluorination reaction after the pH value is adjusted; the effluent of the second-stage fluorine removal unit reacts with a fluorine removal agent or polyaluminum chloride in the third-stage fluorine removal unit to remove fluorine again, polyacrylamide is added into the third-stage fluorine removal unit to perform a flocculation reaction, and finally, the fluorine ion concentration in the effluent of the third-stage fluorine removal unit meets the discharge requirement. The agent input cost and the sludge treatment cost are reduced, the secondary pollution of chloride ions is avoided, and the effluent is ensured to stably reach the standard.

The helium extraction system is used for extracting helium in BOG and comprises a low-temperature rectification device, a catalytic dehydrogenation device, a drying device and a pressure swing adsorption device which are sequentially connected through a pipeline. The low-temperature rectification device can rectify and concentrate helium in BOG, the catalytic dehydrogenation device can catalytically oxidize hydrogen in the BOG and remove the hydrogen in the BOG, the drying device can remove moisture in the BOG, and the pressure swing adsorption device is a normal-temperature pressure swing adsorption device and can separate and purify the helium in the BOG; the low-temperature rectification device comprises a first compressor, a heat exchanger, a rectification tower, a condensation evaporator, a gas-liquid separator and a second compressor, the inlet end of the first compressor can be connected with a BOG gas source, and the first compressor, the rectification tower, the condensation evaporator and the gas-liquid separator are sequentially connected through pipelines; a connecting pipeline between the first compressor and the BOG gas source and a connecting pipeline between the first compressor and the rectifying tower respectively form a circulation loop through the heat exchanger, the second compressor and the condensation evaporator; according to the extraction system, the number of dynamic equipment and static equipment in an existing device for extracting helium from BOG is reduced, the input cost is reduced, and the energy consumption and the operation difficulty are reduced.

The utility model relates to the technical field of pneumatic conveying devices, in particular to a spiral pneumatic conveying device. The device comprises: a hopper, the bottom of which is provided with a first discharge port; a feeding hole connected with the first discharging hole is formed in the top of the storage barrel, and the bottom of the storage barrel is connected with a conveying pipeline and an air outlet of the cyclone; a sealing plate is arranged at the conveying tail end of the conveying pipeline; the winding structure is mounted in the conveying pipeline, one end of the winding structure is connected with the sealing plate, and the other end of the winding structure is connected with the output end of a motor; a material storage cylinder air inlet is formed in the material storage cylinder, a swirler air inlet is formed in the swirler, and a second discharging opening with a downward opening is formed in the conveying tail end of the conveying pipeline. The pneumatic conveying device effectively solves the technical problem that in the prior art, a pneumatic conveying device cannot convey wet, sticky and even pasty materials, so that the investment cost of equipment for underground operation is high.

The invention discloses a coated titanium anode and an embedding preparation method thereof, and belongs to the technical field of coated titanium anodes, metal salt powder, an organic additive and inert filler are fully mixed to form embedding agent powder, the mass fraction of metal salt is 45-59%, the mass fraction of the organic additive is 1-5%, and the mass fraction of the inert filler is 40-50%; the sintering treatment is as follows: the pretreated titanium substrate is completely immersed in the embedding agent powder, the sintering temperature is 400-600 DEG C, the sintering time is 1-3 hours, and the heating rate is 5-10 DEG C / min. According to the method, low-temperature sintering is realized by precisely regulating and controlling the components and the proportion of the embedding medium and combining process parameters such as low-temperature sintering, and the damage to a titanium substrate is avoided; and meanwhile, the coating binding force of the titanium anode is improved, the service life of the titanium anode is prolonged, and technical innovation and industrial value are achieved.

The invention relates to the technical field of glass fiber reinforced plastic storage tank machining, and discloses a glass fiber reinforced plastic storage tank machining clamping device which comprises a bottom plate, a clamping mechanism is arranged on the bottom plate, and an adjusting mechanism is arranged on the clamping mechanism; the clamping mechanism comprises a rectangular sliding hole and a first motor, and the rectangular sliding hole is formed in the top of the bottom plate. It can be ensured that the glass fiber reinforced plastic storage tank is firmly and accurately fixed in the machining process, machining errors caused by shaking or shifting of the storage tank are reduced, and therefore the machining precision is remarkably improved, the position of the triangular clamping plate can be flexibly adjusted according to the glass fiber reinforced plastic storage tanks of different sizes and shapes, and the machining efficiency of the storage tank is greatly improved whether a small storage tank or a large storage tank is small or large. And the application range of the device is greatly widened, and the cost input and operation troubles caused by mismatching of equipment are reduced.

The invention relates to the technical field of mixing equipment, and discloses mixing equipment for graphite material production and processing, which comprises a supporting arm, a collecting disc is fixedly mounted at the bottom end of the supporting arm, a first motor is fixedly mounted at the top end of the supporting arm, and an outer cylinder assembly is movably mounted at the top end of the supporting arm. According to the mixing equipment for graphite material production and processing, the inner cylinder assembly is arranged in the outer cylinder assembly, and the filter holes are formed in the inner cylinder assembly, so that raw materials in the outer cylinder assembly, which are brought up by rotation of the multifunctional assembly, are crushed, spread and filtered under the action of rotation; the filtered qualified raw material powder can enter the inner cylinder assembly to be fully mixed with other raw materials in the inner cylinder assembly, so that the quality of subsequent graphite materials is guaranteed, additional pretreatment of the graphite materials is not needed, the mixing efficiency is greatly improved, the input cost of equipment is reduced, and the production cost is reduced. And the applicability of the equipment is embodied.

The invention relates to the technical field of stamping dies, and discloses an automobile part stamping die and a stamping method. The die assembly is used for carrying out stamping operation; the oil spraying assembly is used for spraying lubricating oil in the stamping operation process; the dust removal assembly is used for removing dust on the surface of the material; and the fixing assembly is used for fixing the stamping material. Through the arrangement of the die assembly, the two upper dies can conduct stamping operation alternately, it is avoided that due to long-term repeated operation of the same upper die, abrasion is aggravated, and the service life is shortened, in the upper die overturning process, the upper dies are monitored in real time through cooperation of a camera and a displayer, and the upper dies are replaced in time when damaged; the situation that the quality of a large number of materials is damaged due to the fact that the die is damaged in the continuous operation process is avoided; and through the arrangement of the multiple stamping knives, the upper die can conduct punching operation in the stamping process, and the working efficiency is improved.

The invention discloses a screening method for 3D printing powder. The screening method comprises the following steps that powder needing to be screened is prepared; s2, performing screening modes of different levels according to the powder attribute information of the powder: primary screening of the powder; powder is subjected to multi-stage screening; screening fine powder; the screening process is monitored, an alarm detection mechanism is installed, and whether blockage occurs in the screening process or not is judged according to the screening result; different grades of screening modes are carried out by detecting powder attribute information of powder, the alarm mechanism is arranged, whether blockage occurs in the screening process or not is judged according to the screening result, the alarm detection mechanism can be based on the weight of falling materials, when the weight of discharged materials reaches a certain pressure value, it is indicated that work is normal, and the working efficiency is improved. And if the pressure is lower than a normal numerical value, the blanking amount is small, blockage is caused, the blockage and accumulation phenomena of particle materials on the screen are effectively prevented, the continuity and the stability of the screening process are ensured, and the printing quality and the printing consistency are improved.

The method comprises the following steps that a static pressure molding casting line produces a sand mold contained in a sand box, the sand mold is conveyed to a pouring line to be subjected to molten iron pouring operation, the sand box containing a casting is obtained, then the sand box is conveyed to a sand box cooling line through a sand box conveying mechanism to be cooled in a walking mode, and then the sand box is conveyed to a return line through the sand box conveying mechanism; the sand box grabbing and transferring mechanism transfers a sand box to the first barrel box machine, molding sand and a casting in the sand box are pushed upwards into the pouring jacket, the pouring jacket containing the casting is transferred to the pouring jacket conveying line through the first pouring jacket grabbing and transferring mechanism, then the pouring jacket is transferred to the pouring jacket cooling line through the pouring jacket transferring mechanism, and after cooling is completed, the pouring jacket is conveyed to the second barrel box machine. And then the pouring jacket is transferred to a second-stage box puncher assembly on the pouring jacket conveying line, the pouring jacket is transferred to the bottom of the first sweeping mechanism through a second pouring jacket grabbing and transferring mechanism, and the shakeout piece taking operation is completed. According to the process steps, on the premise that the size of the occupied space of the whole device is kept unchanged, the cooling walking distance is effectively increased, the cooling amplitude is improved, and the production input cost is reduced.

The present invention discloses a method for preparing a lithium-silicon alloy nanoparticle and a dry-process lithium-silicon alloy negative electrode material. The lithium-silicon alloy nanoparticle comprises a lithium-silicon alloy core and a polymer layer located on the surface of the lithium-silicon alloy core, wherein the polymer layer completely covers the lithium-silicon alloy core. By fully covering the silicon-lithium alloy core with a polymer, the stability of the lithium-silicon alloy particles can be improved, the equipment investment cost can be reduced, and the economy can be improved. Moreover, when the silicon-lithium alloy particles are used with other raw materials such as a conductive agent to prepare a negative electrode material, the reaction between the silicon-lithium alloy core inside the silicon-lithium alloy particles and water and oxygen in the external air can be effectively avoided, thereby reducing lithium loss. In addition, adding a stabilizer during the mixing process of preparing a dry-process lithium-silicon alloy negative electrode material can supplement the polymer-free vacancies that appear after the surface coating layer of the silicon-lithium alloy particles is worn, further preventing the reaction between the internal silicon-lithium alloy and the external air, reducing lithium loss, and thus improving material performance.

The utility model relates to the technical field of flue gas desulfurization, and particularly provides a small movable high-activity calcium-based desulfurizing agent preparation device which comprises a feed port, a first-stage digester, a second-stage digester, a third-stage digester, an atomizing nozzle, a liquid injection port, a spraying control system, a double-shaft spiral propelling rod, a heating layer, an oil injection port, a temperature control device, a discharge port and the like. The feeding hole is positioned above the inlet of the first-stage digester; the first-stage digester, the second-stage digester and the third-stage digester are sequentially arranged from top to bottom; an upper-stage outlet is connected with a lower-stage inlet; atomizing nozzles are assembled at the tops of the first-stage digester and the second-stage digester and are connected with a liquid injection opening and a spraying control system; a double-shaft spiral propelling rod is mounted in the center of a cavity of the digester; heating layers are arranged on the two sides and the bottom of a stirring tank of the digester and are connected with an oil injection port and a temperature control device; and the discharge hole is positioned below the outlet of the third-stage digester. The utility model solves the problem of large occupied area of production equipment in the existing quicklime digestion technology, and meets the requirements of various factories on small-batch preparation of calcium-based desulfurizers anytime and anywhere.

The invention discloses a poria cocos factory soilless culture method which comprises the following steps: uniformly mixing a poria cocos sclerotium culture medium main material and a culture medium auxiliary material in proportion, humidifying, and adjusting the pH value to 5.5-6.5; putting the mixture into a container, treating and sterilizing by adopting a chemical agent under a normal temperature condition, and then inoculating a poria cocos solid strain; the method comprises the following steps: putting the tuckahoe into a culture vessel, culturing at 22-25 DEG C, taking out when sclerotia is expanded, steaming the harvested tuckahoe, removing brown skin on the surface, slicing or dicing, and drying to obtain a finished product. The method is novel, reasonable in design, simple in procedure, convenient to implement, capable of saving wood, land, labor and energy, low in cost and high in economic benefit; due to the fact that cultivation is carried out under the soilless condition, sites and farming hours can be selected at will, damage caused by diseases, insects, grass and rats is effectively reduced, and therefore the high-quality, green and pollution-free poria cocos products are obtained.

The invention relates to the technical field of measurement, and provides a water depth measurement device convenient to use, which comprises a measurement ship body, a bearing frame, a suspension frame assembly, a water depth measurement mechanism and a measurement auxiliary mechanism, a winding wheel and a first angle sensor in the length metering assembly are fixedly connected with a first transverse rotating shaft, the second driving part is in transmission connection with the first angle sensor, a gravity ball in the falling part is wound around the surface of the winding wheel through a steel wire, and the measurement auxiliary mechanism comprises a fixing assembly and a swing assembly. A longitudinal pipe in the fixing assembly is installed above the fixing shell, a balance column in the swing assembly is connected with the fixing shell, a swing arm is fixedly connected between the balance column and a second transverse rotating shaft, a threading ring is fixedly connected with the balance column, the balance column is in sliding connection with an arc-shaped guide rail, and a steel wire penetrates through the longitudinal pipe and the threading ring. The device has the advantages of being convenient to use and accurate in measurement.

The invention relates to the technical field of electric vehicle charging, in particular to an electric vehicle plug-and-play intelligent identification Java system and method, and the system comprises an intelligent identification module, an authority verification module, a charging control module, a data communication module and a user interaction interface. The plug-and-play intelligent identification Java system and the plug-and-play intelligent identification Java method for the electric vehicle have the beneficial effects that the plug-and-play function of the electric vehicle in a charging station is realized by integrating intelligent identification and authority verification technologies. A user does not need to carry out tedious manual operation or code scanning verification any more, and the system can automatically complete the identification and verification process and immediately start charging only by inserting the charging gun into the vehicle charging interface. Through the improvement, the charging process is greatly simplified, the waiting time of the user is shortened, and the charging convenience is improved. For an electric vehicle user, the charging experience is smoother and more efficient, and popularization and application of the electric vehicle are promoted.

The invention discloses an automatic metal pipe extrusion forming device for a vacuum pump, and relates to the technical field of metal pipe preparation, the automatic metal pipe extrusion forming device comprises an extruder, a feeding hopper is fixedly connected to the top surface of the extruder, a cavity is formed in the side wall of the extruder, a cooling cavity is formed in the bottom end of the extruder, and a fixing frame is fixedly connected to the end surface of the extruder; a motor is installed in the fixing frame, a screw rod is fixedly connected to the output end of the motor, and a flow dividing block is fixedly connected to the inner surface of the output end of the extruder. The cooling device has the advantages that the cooling efficiency of the metal pipe and the production efficiency of the metal pipe can be synchronously adjusted, the material blocking phenomenon is avoided, and normal production work is guaranteed; meanwhile, manual step-by-step operation is not needed, control elements are correspondingly reduced, the wire arrangement difficulty and cost input are reduced, meanwhile, the cooling mechanism and the extruder coincide, external matching devices are not needed, and therefore the occupied area of the device is greatly reduced, and the working space can be fully utilized.

The invention provides a PCS-based multi-battery non-isolated insulation detection system, a PCS-based multi-battery non-isolated insulation detection method, a medium, a program product and a terminal, the PCS is used for forming a charging pile to charge and discharge a battery of a battery swap station, the battery and the charging pile are respectively subjected to insulation detection before interaction, then the battery insulation detection is closed, and then the PCS charging pile executes global direct current loop insulation detection, so that the insulation detection efficiency is improved. According to the technical scheme, the efficiency of a charging and discharging system is improved, a traditional transformer is adapted, the problem of parallel connection of multiple batteries is solved, and the technical problems that an existing battery replacing station is low in efficiency, and parallel connection of the multiple batteries is difficult are solved.