17results about How to "Applicable" patented technology

The application discloses a rock drillability prediction method based on multi-source information fusion, first, the drilling data and vibration data are fused to predict the rock drillability, aiming at the problem that the time scales of the drilling data and the vibration data are inconsistent, a segmented cubic Hermite interpolation method is adopted to unify the time scale, then, a mutual information method is adopted to analyze the data correlation, and suitable input variables are obtained, finally, an extreme learning machine method is adopted to establish a rock drillability prediction model to obtain the uniaxial compressive strength value. The drilling data and the vibration data are used to predict the rock drillability, the drilling efficiency is improved, the stability of the drilling process is ensured, the safety accidents are effectively reduced, and the method provides guidance for the research on intelligent control of the drilling process, and has practicability and applicability.

The application relates to a power distribution network reliability optimization evaluation method based on vehicle-network interaction, which comprises an electric vehicle driving model, a vehicle-network coupling element reliability model, an electric vehicle charging and discharging incentive model and a fault recovery model with electric vehicle access, so as to solve the modeling problem of the influence of the travel characteristics and the charging and discharging characteristics of the electric vehicle under the guidance of the charging and discharging incentive model on reliability, thereby most effectively measuring the influence of the electric vehicle access to the power distribution network on the reliability index. The application can realize reliability optimization evaluation on the basis of considering vehicle-network interaction and has applicability when the operation scene changes, thereby making up for the problem of insufficient consideration of factors related to the electric vehicle access to the power distribution network in the existing method.

This invention discloses a universal control interface system for converters used in AC drive system test benches, comprising a control unit, a main disconnection status signal circuit, a synchronization signal circuit, a mains current signal circuit, and a VCB enable signal circuit. The main disconnection status signal circuit includes a normally open contact status circuit, a normally closed contact status circuit, a second switch, a first rotary switch, and a second rotary switch. One end of the normally open contact status circuit is connected to multiple normally open main disconnection contacts connected in parallel, and one end of the normally closed contact status circuit is connected to multiple normally closed main disconnection contacts connected in series. The normally open contacts of the second switch are connected in parallel to the normally open contact status circuit, and the normally closed contacts are connected in series to the normally closed contact status circuit. The second rotary switch is located in the normally closed contact status circuit and is connected in parallel with one or more normally closed main disconnection contacts. This invention has advantages such as enabling interface conversion between different test bench main circuit topologies and different test samples, improving test efficiency, and enhancing the modularity of test bench design.

The utility model provides lifting equipment with a limited space, which is erected on the ground and comprises two gantries erected on the ground, a plurality of pre-buried points and supporting points arranged between the pre-buried points are sequentially arranged on the ground from front to back, and the two gantries are erected on the corresponding pre-buried points; the walking beam is erected between the two portal frames, and the walking beam is movably provided with an electric hoist; and the supporting piece is arranged on the supporting point and is perpendicular to the walking beam. The lifting device solves the problem that in the prior art, the height of lifting equipment in a limited height space cannot meet the hole pile lifting requirement.

This invention relates to the field of chemical process technology and discloses a combinable tower-type continuous reaction system, including a feeding system, a reactor, and a discharging system. The feeding system and the discharging system are respectively connected to the inlet and outlet of the reactor. The reactor includes a top tower cover and a bottom tower vessel. Several structurally identical tower sections are connected between the top tower cover and the bottom tower vessel. A steam outlet pipe is provided at the center of each tower section. The inlet of the steam outlet pipe of the upper tower section is connected to the interior of the lower tower section, and the inlet of the steam outlet pipe of the bottom tower section is connected to the interior of the bottom tower vessel. The outlet of the steam outlet pipe extends outside the tower section. This invention can draw material vapor from the top of each tower section and condense small molecules to promote the reaction equilibrium to shift to the right. It can realize continuous production of fractionation, mixing, fed-batch reaction, total reflux reaction, and reflux condensation reaction.

This invention discloses a non-destructive testing method based on a multidimensional complementary ensemble empirical mode decomposition (MEMD) algorithm. The method constructs a three-dimensional matrix of all thermal image data and transforms it into a two-dimensional matrix. MEMD is then performed on each row of the two-dimensional matrix, and the decomposed images are further processed column-wise. The resulting images are then combined using the MEMD algorithm to extract the defective image portion, yielding the clearest image. This invention utilizes both the temporal and spatial information of the thermal image sequence through row and column mode decomposition, comprehensively reflecting defect information. Furthermore, this invention has broad applicability, suitable for any thermal image sequence, including both long-pulse heating and eddy current pulse heating.

The invention discloses a rapid identification method for sandstone gas reservoir fluid output types. On the basis of a relative permeability experiment result, irreducible water saturation, irreducible gas saturation and critical water saturation of the rock cores with different permeability are extracted, and a gas-water production identification chart is established, so that the sandstone gas reservoir fluid production type is rapidly and effectively judged through the reservoir physical property and the water saturation.

The application discloses a kind of zeolite molecular sieve for removing hexavalent chromium in wastewater and its preparation method, which comprises the following steps: mixing solution and stirring: all raw materials are placed into polytetrafluoroethylene lined stainless steel autoclave, then the polytetrafluoroethylene lined stainless steel autoclave is placed into ultrasonic cleaning machine for ultrasonic stirring, and slowly shakes during stirring process;Synthesis reaction: after stirring, the polytetrafluoroethylene lined stainless steel autoclave is tightened, the polytetrafluoroethylene lined stainless steel autoclave is placed into thermostat for constant temperature reaction;Sample removal: after constant temperature, the polytetrafluoroethylene lined stainless steel autoclave is taken out, the cover is rotated after cooling, the white lining is taken out, and is dried, to obtain molecular sieve.The application can solve the problems of complex process flow, huge energy consumption and inconvenient operation in the synthesis technology of existing molecular sieve.

The utility model discloses a multi-layer combined type plasticine storage box which comprises a sealing cover, a box body, a lifting handle and a buckle, the lifting handle is arranged on the sealing cover, the buckle is arranged on the box body, the box body is provided with a plurality of layers and overlaps with each other, adjacent box bodies are connected in an inserted mode and clamped through the buckle to achieve fixation, the sealing cover is arranged on the top of the box body, and the buckle is arranged on the top of the box body. The sealing cover is inserted into the box body and is clamped through the buckle to realize fixation; the top of the sealing cover is provided with a first mounting groove for mounting the handle; an annular groove is formed in the bottom of the sealing cover, a sinking groove is formed in one side of the annular groove, an inserting plate is arranged in the sinking groove, a first groove is formed in one side of the sealing cover, a fixing block is arranged in the first groove, and a second buckling strip is arranged on the fixing block. According to the box, the classified storage effect can be achieved in the mode that the multiple layers of box bodies are stacked and combined, and the stable locking effect between the box bodies and between the box bodies and the sealing cover can be achieved in the mode that the inserting plates are inserted into the inserting grooves and the first buckling strips are connected with the second buckling strips in a clamped mode.

The invention discloses a fruit pose real-time estimation method based on multi-frame information fusion. The method comprises the following steps: acquiring observed image data and a sensor pose; performing fruit semantic instance segmentation on the image data to obtain a current frame fruit instance and a depth point cloud, performing data association on a fruit semantic instance segmentation result and a fruit map representation constructed based on a truncated symbol distance field in combination with a sensor pose, and determining a data association relationship between the current frame and a historical frame; according to the data association relationship, the current frame fruit instance and the depth point cloud, updating the fruit map representation; and extracting effective point clouds on the surfaces of the fruit instances from the updated map representation, determining the attitude information of the fruits through filtering and principal component analysis, estimating the omnibearing size information of the fruits, and finally determining the real-time poses of the fruits. Real-time and high-precision estimation of the fruit poses can be achieved, lightweight deployment of the fruit picking robot in a facility agriculture scene is achieved, and the operation success rate and the intelligent level are remarkably improved.

The application is a slow landslide building vulnerability analysis method based on FLAC3D and PS-INSAR, including the following steps: S1, collecting the required research data; S2, obtaining the building disaster resistance capability evaluation index system and weight through literature research and expert scoring, and obtaining the building disaster resistance capability index calculation value R; S3, using PS-InSAR technology to calculate the cumulative displacement of the landslide at different locations, and according to the cumulative displacement value and the building disaster resistance capability index value R obtained in S2, the landslide disaster causing strength inversion value I is obtained by inversion p , and then the displacement-I p scatter plot fitting obtains the landslide disaster causing strength empirical curve; S4, using FLAC3D to simulate the cumulative displacement of the landslide under extreme conditions, and using the landslide disaster causing strength empirical curve to obtain the landslide disaster causing strength index calculation value I under extreme conditions; S5, using R and I to obtain the disaster body vulnerability under extreme conditions. The quantitative problems of building disaster resistance capability and landslide disaster causing strength are solved.

This invention belongs to the field of water pressure testing technology, and particularly relates to a device for testing the pore water pressure of concrete specimens in experiments. The invention places the concrete specimen in a pressure water tank, and a pressurized water pump supplies water to the tank, filling the specimen with water. A pore water pressure gauge is then embedded in pre-designed pores within the concrete specimen. The gauge is connected to an operating platform via a cable. The platform is located at the top of a lifting mechanism, and an instrument display is fixedly connected to the top of the platform for convenient data recording during operation. A rotating shaft inside the platform controls the cable's length by extending and retracting it. The lifting mechanism is adjustable to a suitable height, eliminating the need to constantly bend over to view and record data, effectively improving operational convenience.

This invention discloses an algorithm for improving time synchronization accuracy in a master-slave network topology. The algorithm comprises the following steps: S1, establishing a master-slave network topology; S2, exchanging messages to obtain four timestamps and calculating the master-slave clock offset and average link delay, sending an Optimize_Req message to the master clock; S3, selecting the optimal master-slave clock offset from multiple offsets and calculating the asymmetric link delay ratio for each synchronization; S4, if the current link delay is approximately symmetrical, the master-slave clock offset is used to update the slave clock; S5, if the current link delay is asymmetric, the clock offset estimate is obtained using the maximum likelihood estimation algorithm, and an Optimize_Resp message is sent to the slave clock to update it. This invention improves the PTP time synchronization protocol by using the above algorithm, adding two message transmissions. The master clock receives the synchronization results from multiple slave clocks, further performs filtering and optimization, and then sends the updated results to the slave clocks, allowing the slave clocks to adjust themselves.

This invention discloses a method for plastic forming of thick-walled cylindrical metal parts, specifically a six-wheel high-strength staggered-pitch spinning forming method for large-diameter pure titanium cylindrical parts, which includes the following steps: Step 1: According to the target product thickness T 1 Calculate the thickness T of the raw material 0 Compared to die spinning, the ultimate thinning rate of die spinning is higher. It can reach over 85%, and the thickness of the raw material T 0 for: The length of the raw material should be determined in conjunction with the processing allowance of the subsequent process and the determination of whether heat treatment test blocks are required. At the same time, the theoretical length should be calculated based on equal volume. The beneficial effects of this invention are: by setting multiple sets of inner and outer spinning wheels and combining them with staggered spinning process, a large material thinning rate can be achieved in one pass. By replacing the spinning die with an inner spinning wheel, the material processing efficiency is improved, the development cycle of the parts is shortened, and the mold investment cost is reduced. It is not only applicable to large-diameter cylindrical parts made of TA1 material, but also applicable to other large-diameter thick / thin-walled parts.

The auxiliary device for shearing of the cold shearing machine comprises a bottom frame and a whole cold shearing machine, a fixing frame is installed at the upper end of the bottom frame, a plurality of containing plates are installed at the upper end of the fixing frame, penetrating grooves are formed in the containing plates, rotating shafts are rotationally connected to the positions, below the penetrating grooves, in the fixing frame, and rotating rollers are installed on the surfaces of the rotating shafts. The adjacent rotating shafts are connected through linkage mechanisms, a detection disc is installed on the surface of one rotating shaft, a sensor assembly is installed on the fixing frame on one side of the detection disc, a magnet block is installed on the surface of the detection disc on one side of the sensor assembly, and a controller is installed on the fixing frame. The linkage mechanism drives the rotating shafts to rotate, the rotating rollers on the surfaces of the rotating shafts convey pipes, meanwhile, the rotating shafts drive the detection disc to rotate when rotating, the sensor assembly detects the number of turns of rotation of the magnet blocks on the detection disc, and the length of the conveyed pipes is calculated according to the diameter of the rotating rollers. And pipe materials with the same length can be conveniently machined.

The application provides a technical file management system under a construction management system, comprising: a technical file type management module, configured to customize technical file types circulating in the system and configure forms and process combinations corresponding to the technical file types; a technical file association management module, configured to manage nodes associated with other directory trees in the system when the technical file is initiated; a technical file retrieval module, configured to retrieve technical files; a technical file viewing module, configured to view specific technical files retrieved by the technical file retrieval module; and a technical file statistical module, configured to customize various statistics. The application decouples structured forms and processes of technical file circulation and respectively establishes libraries for management, realizes user self-configuration of technical file type circulation, associates multiple tree structures in the system, and realizes multi-dimensional retrieval and statistical functions, thereby helping to promote the productization of technical file management under the construction management system.

The invention discloses a floating breakwater system integrating multi-mechanism wave power generation. The floating breakwater system comprises a floating breakwater body, a power generation system and a mooring system. A wave gathering structure is arranged below the wave facing surface of the dike body; an anti-overtopping structure is arranged above the head wave surface; a wave rolling structure is arranged below the wave back surface; a swinging power generation unit is arranged above the wave rolling structure; the swing power generation unit comprises a hydraulic power generation mechanism and a plurality of partition bulkheads arranged at intervals, a rotating shaft and a limiting rod are connected between the partition bulkheads, a swing plate is hinged to the rotating shaft, and a connecting rod is arranged between the swing plate and the hydraulic power generation mechanism; a perforated channel is formed in the head wave face of the breakwater body, a water inlet of the perforated channel is located in the head wave face of the breakwater body, and a water outlet is located in the upper surface of the breakwater body. A moon pool is formed in the embankment body; an oscillating floater power generation unit is mounted in the moon pool; and a turbine generator is arranged in the opening channel. The main body structure is combined with the turbine power generation system, the oscillation floater power generation system and the swing power generation system, wave energy is dissipated and converted into electric energy at the same time, and integration of multi-mechanism power generation and wave absorption is achieved.