Feeding hopper of circular cooler

The invention relates to an annular cooler feeding hopper which is characterized in that a first material stacking plate is arranged in the feeding hopper, a second material stacking plate is arranged below the first material stacking plate, the first material stacking plate and the second material stacking plate are arranged in a staggered mode and fixedly connected with the side wall of the hopper, and annular stiffening ribs are arranged on the outer wall of the side wall of the hopper; a plurality of supporting plates inclined to the feeding direction are arranged on the inner wall of the side wall of the hopper, the supporting plates are arranged at equal intervals from top to bottom, and falling materials are stacked above the supporting plates to form a material lining. The side wall of the hopper has the function of preventing abrasion of stored materials, and meanwhile the rigidity and strength of the whole feeding hopper are improved. Installation and maintenance are convenient ...

Universal dynamic compensation method for multiple types of sensors

The invention provides a universal dynamic compensation method for multiple types of sensors, which belongs to the technical field of sensor compensation and comprises the following steps: acquiring dynamic calibration data of the multiple types of sensors and corresponding standard data; training the first generative adversarial network, and migrating model parameters of the first generative adversarial network to a corresponding module of the second generative adversarial network; inputting dynamic calibration data and standard data in the data set after time-frequency conversion into a second generative adversarial network to obtain a single-sensor dynamic compensation model; inputting a loss function value, a model network parameter, a single sensor dynamic compensation model output value and a multi-type sensor to-be-compensated data set in the single sensor dynamic compensation model into a meta learning network to obtain a general sensor dynamic compensation model; and inputting ...

Automatic ash scattering device of electric locomotive for shield construction

The invention discloses an automatic ash scattering device of an electric locomotive for shield construction, which comprises a control device, the control device is electrically connected with a double-output-shaft speed reduction direct current motor and controls the double-output-shaft speed reduction direct current motor to start and stop, and the two ends of the double-output-shaft speed reduction direct current motor are respectively connected with a conveying component through a coupler. The conveying components are symmetrically arranged with the double-output-shaft speed reduction direct current motor as the center, the conveying components are communicated with hoppers, and the output ends of the conveying components are connected with material scattering pipes. The device can replace manual operation, reduces the number of workers entering a rail-mounted area for construction, improves construction safety, reduces personnel injury, can automatically scatter ash, is simple to ...

TIMED TRACING METHOD, ELEMENT MANAGEMENT SYSTEM, AND STORAGE MEDIUM

Disclosed is a timed tracing method. An element management system (EMS) sequentially reads timed tracing tasks in a timed tracing task list, and activates the timed tracing tasks when it is determined that the timed tracing tasks are not activated and satisfy an activation condition; and sequentially rereads the timed tracing tasks in the timed tracing task list when it is determined that the reading of the timed tracing tasks in the timed tracing task list ends, and deactivates the timed tracing tasks until the rereading ends when it is determined that reread timed tracing tasks have been activated and satisfy a deactivation condition. Also disclosed are an EMS and a storage medium.

High-performance large-size rubber track

The invention relates to the field of rubber tracks, in particular to a high-performance large-size rubber track. The rubber track comprises a track body, iron teeth and steel wire cords, iron teeth are arranged on the inner side of the crawler belt body at intervals in the length direction, the steel wire cords are arranged below the iron teeth, thickened protrusions used for increasing the bonding area of the ends of the iron teeth and rubber are arranged above the two ends of the iron teeth respectively, and high-strength fiber cord fabric is arranged between the lower portions of the thickened protrusions and the steel wire cords. The inner side of the high-strength fiber cord fabric is inserted between the steel wire cord thread and the iron teeth, the end part of the high-strength fiber cord fabric exceeds the inner side end of the thickened bulge, and the level difference between the end part and the thickened bulge is 25-40mm; the outer side of the high-strength fiber cord fabric ...

夹具（小-F）

投光灯

Electric power cable stripping device for electric power engineering and use method of electric power cable stripping device

The invention discloses an electric power cable stripping device for electric power engineering and a use method thereof, and relates to the technical field of electric power engineering, and the stripping device comprises a fixed seat which is provided with a first stripping knife; the movable plate is located above the fixed seat, and the second stripping knife at the bottom of the movable plate corresponds to the first stripping knife up and down; wherein a fixing frame is mounted at the top of the fixing seat, a bolt extending up and down is inserted into the outer part of the fixing frame, and the bolt is in threaded connection with the fixing frame; and the bottom end of the bolt is connected with the movable plate. According to the power cable stripping device for the electric power engineering and the use method thereof, the movable plate (provided with the stripping knives) is adjusted to move up and down in a manner of rotating the bolts, so that the distance between the two stripping ...

Speaker recognition method based on trivial pronunciation and related equipment

The invention discloses a speaker recognition method based on trivial pronunciation and related equipment, relates to the field of intelligent recognition, and mainly aims to solve the problem that a more accurate method for matching trivial pronunciation with a corresponding speaker is lacked at present. The method comprises the following steps: dividing a training set into at least two training tasks; determining the cross entropy loss of the support set through a first operation based on all target spectrum features of the support set, the initial speaker embedding layer model and the initial speaker classification model; determining a first speaker classification model and a first speaker embedding layer model through a second operation based on the cross entropy loss and back propagation method of all the support sets; and determining a target speaker embedding layer model through a third operation based on the average loss of the six query sets of all the training tasks determined ...

Evaporation coating device using radio frequency power supply for atmosphere compensation

The invention discloses an evaporation coating device using a radio frequency power supply for atmosphere compensation, and belongs to the technical field of radio frequency ion coating. By arranging a radio frequency power supply atmosphere compensation part, more ionized oxygen content is compensated, under the condition that an electron beam system is kept unchanged, an original ion source is replaced by a quartz tube, argon and oxygen are mixed and then introduced into the quartz tube in cooperation with an RF power supply, more ionized oxygen content is compensated while materials are evaporated by electron beams, and the electron beam evaporation efficiency is improved. Therefore, the light transmission performance and the conductivity of the prepared film are improved, the time of frequently replacing a filament of an original ion source is saved to a certain extent, the quality of a produced product can be ensured, the utilization rate of equipment can be greatly improved, and the ...

Keyword detection method and related equipment

The invention provides a keyword detection method and related equipment. The method comprises the following steps: performing feature extraction on a to-be-processed voice signal to obtain acoustic features; and inputting the acoustic features into a trained neural network model to output a keyword detection result, the trained neural network model being a dynamic binary neural network. According to the technical scheme, firstly, feature extraction is carried out on the voice signal to be processed to obtain the acoustic features, and then the acoustic features are input into the trained dynamic binary neural network model to output the keyword detection result. Therefore, the parameter quantity and the calculation quantity in the neural network model are greatly reduced, the data storage space is reduced, the wake-up speed is improved, the power consumption of the detection system is effectively reduced, and the hardware implementation difficulty is reduced. And meanwhile, the recognition ...

Image display method based on CT (Computed Tomography) plain scanning and data reconstruction

The invention discloses an image display method based on CT (Computed Tomography) plain scanning and data reconstruction, and relates to the field of image processing equipment. The method comprises the following steps: performing primary spiral CT scanning on the chest of a patient, and changing a scanning body position to obtain a plurality of CT sequence original images of a left coronary artery trunk and an anterior descending branch; the left coronary artery trunk and front descending branch CT sequence original image is converted into an image format according to the needed window width and window level, and a CT sequence image is obtained; acquiring three-dimensional data of the CT sequence picture, and performing data reconstruction on the three-dimensional data; and reconstructing a three-dimensional image through image processing equipment by using the three-dimensional data after data reconstruction, and displaying coronary artery blood vessels, intra-pulmonary blood vessels, ...

WHOLE-COURSE LOCKING DEVICE FOR VEHICLE DOOR SYSTEM, AND VEHICLE DOOR SYSTEM

A whole-course locking device for a vehicle door system, and a vehicle door system, relating to the technical field of rail transit doors. The whole-course locking device for a vehicle door system comprises: a motor (1); a screw rod (3); a clutch locking mechanism (2) connecting the motor (1) and the screw rod (3). The clutch locking mechanism (2) comprises: a sleeve (23); a driving claw (21) rotatably disposed in the sleeve (23) and connected to an output end of the motor (1), the driving claw (21) having at least two claw parts (211) extending backwards and spaced apart from each other; and a cam (22) rotatably disposed in the sleeve (23) and connected to the screw rod (3). The peripheral wall of the cam (22) is provided with grooves (26) spaced apart from each other and adapted to the claw parts (211), wedge-shaped areas (261) distributed in the circumferential direction are provided in the grooves (26), rollers (25) and elastic members (24) are provided in the wedge-shaped areas (261 ...

Building outer wall surface image recognition method and electronic equipment

The invention discloses a building outer wall surface image recognition method, and the method comprises the steps: determining a building outer wall surface region in a building outer wall surface visible light image through a trained image recognition model; the building method of the image recognition model comprises the steps that S1, a building outer wall surface visible light image and a binary image of the building outer wall surface image are obtained, a wall surface area in the binary image is matched to the corresponding visible light image, and the building outer wall surface image comprises building facade target object information; s2, counting wall pixel information in the matched visible light image, and determining a pixel value range in which the number of pixels accounts for the majority of the number of all the pixels; s3, traversing each pixel point in the visible light image one by one, judging whether the pixel point is located in the majority pixel value range or ...

REQUEST SENDING METHOD AND DEVICE THEREOF

Disclosed in the present application is a request sending method, the method comprising: receiving a request instruction sent by a user, wherein the request instruction comprising request value information and requested object identifiers; according to the requested object restriction rule, splitting the specific value expressed by the request value information into at least two request values conforming to the restriction rule; and sequentially sending a request to the requested objects expressed by the requested object identifiers on the basis of the at least two request values conforming to the restriction rule. The defect of poor experience caused by the reason that a user needs to initiate a value data sending request for multiple times is overcome. Further disclosed in the present application is a request sending device.

METHOD, APPARATUS AND SYSTEM FOR MULTICAST SERVICE BASED ON HOME ENODEB

A method, apparatus and system for multicast service based on Home eNodeB are provided in the present invention, and the method includes: available multicast service information of user equipments is distributed via Multicast Control Channel (101); Multicast Traffic Channels corresponding to the multicast service of the service request are selected or assigned according to the received service request which is selected and sent by the user equipments, and are notified to the user equipments (102); the data of multicast service requested by the user equipments are transmitted via the selected or assigned Multicast Traffic Channels (103). The apparatus includes an information distributing unit, a service channel selecting unit and a service transmitting unit. The system includes a Home eNodeB and user equipments. The above technical solutions could bring the following useful effect that even though the user bandwidth in multicast situation is limited, the multicast service can be performed ...

Dust removal device for maintenance shutdown of production line of aero-generator

The invention relates to a dust removal device for maintenance shutdown of an aero-generator production line. The dust removal device comprises a rotary workbench and an aero-generator fixedly installed on the rotary workbench. The rotary worktable comprises a station mounting disc and a rotary seat assembly arranged on the station mounting disc, and a grinding robot and a dust removal device are arranged on the station mounting disc; the aero-generator is fixedly arranged on the rotating seat assembly; the included angle between the grinding robot and the dust removal device is matched with the included angle between every two adjacent blades, and the grinding robot is located on the downstream of the dust removal device. The dust removal device comprises a base and an operation arm movably installed on the base, a gantry type installation base is installed at the end, away from the base, of the operation arm, and a pair of movable dust removal assemblies are installed on the inner side ...

COMPATIBLE AND MAGNETIC ABSORPTION-TYPE ELECTRONIC BUILDING BLOCK

A compatible and magnetic absorption-type electronic building block comprises a circuit board (3), a plug connector (1) and a socket connector (2), wherein the plug connector (1) and the socket connector (2) both comprise an insulation body (6) and a conductive terminal (7), the insulation body (6) is arranged with a mounting body (8) and two support feet (9), a bottom of the mounting body (8) is arranged with an open region, the mounting body (8) is provided with a butting surface (8.1), a top surface (8.2) and a rear cover (8.3), multiple holding tanks (8.5) are arranged on a back of the butting surface (8.1), a permanent magnet (8.6) is mounted in the holding tanks (8.5), multiple bosses (4) are arranged on the top surface of the mounting body (8), and bottoms of the two supporting feet (9) are respectively arranged with a groove (5) used for matching and plugging with the bosses on another electronic building block. The electronic building block can not only implement electronic circuit ...

Emission spectrometer convenient to carry and protect

The utility model relates to the technical field of emission spectrometers, and discloses an emission spectrometer convenient to carry and protect, which comprises a protection box, the top of the protection box is movably connected with a top cover, the left side and the right side of the bottom of the top cover are fixedly connected with blocking seats, and the top of the top cover is hinged with a switch cover. A buffer layer is fixedly connected to the inner bottom wall of the protection box, limiting shaft rings are fixedly connected to the left side and the right side of the inner bottom wall of the protection box, threaded shafts are movably connected to the inner sides of the two limiting shaft rings, rotating handles are fixedly connected to the top ends of the threaded shafts, and mounting plates are in threaded connection to the outer portions of the threaded shafts. According to the emission spectrometer convenient to carry and protect, the overall structure is simple, safe ...

Servo swing die punching machine for stator and rotor punching sheets

The invention relates to the technical field of motor production, and discloses a stator and rotor punching servo swing die punching machine which comprises a hydraulic cylinder, a reciprocating execution mechanism, a movable die, a fixed die and a feeding mechanism. And the feeding mechanism can adjust the position of the raw material within the time interval of the two times of punching action of the movable die, and the non-punched part of the raw material is moved into the punching area for continuous punching. Stamping is carried out at the same stamping position when the stator and the rotor are produced, the movable die only carries out reciprocating motion for stamping, position adjustment of raw materials is not involved, the stamping position of the movable die can be kept accurate every time, and the stamping efficiency is improved. The swing feeding assembly and the rotary feeding assembly are used for conducting feeding and punching position adjustment on strip-shaped raw materials ...

Martensite heat-resistant steel joint service life prediction method based on damage mechanical model

The invention discloses a martensitic heat-resistant steel joint service life prediction method based on a damage mechanical model, and belongs to the technical field of thermal generator set martensitic steel welding joint detection. The creep damage evolution evaluation model of the martensitic heat-resistant steel joint is researched and developed by introducing damage factors based on a damage mechanics theory and deducing a constitutive relationship between creep time and each area of the joint, namely creep strain of a base material, a coarse grain area, a fine grain area and a welding seam. The method aims at achieving the purpose of effectively predicting the creep life of the martensitic steel welding component, analyzing the stress-strain conditions of all areas of the joint at different creep moments, and solving the problem that the creep damage of the heterogeneous joint of the ultra-supercritical unit is difficult to evaluate. According to the invention, damage evaluation ...

Article transfer device for house building project

The utility model discloses an article transfer device for house building engineering, which comprises a bracket, and the top of one end of the bracket is fixedly connected with an inclined rod. The article transfer device has the beneficial effects that four trundles are arranged at the bottom of the bracket, so that the bracket can be conveniently pushed, and a transfer plate arranged at one end of the bracket can be used for placing glass; after glass is placed on the transfer plate, the bidirectional lead screw can drive the two limiting plates to move in opposite directions by rotating the bidirectional lead screw, the two limiting plates moving in opposite directions can clamp the glass, and then the transfer plate is driven to slide along the support through the guide rail rolling wheels and is turned over upwards with the guide rail rolling wheels as the axis. The glass plates are arranged in the limiting frame, the overturned glass plates are located in the limiting frame, the ...

Creep strain evaluation method of austenitic heat-resistant steel based on grain reference orientation deviation

The invention belongs to the technical field of creep damage analysis and evaluation of austenitic heat-resistant steel, and discloses a creep strain evaluation method of austenitic heat-resistant steel based on grain reference orientation deviation. Aiming at the problems of low accuracy of the evaluation method caused by low definition of film coating sample preparation and unobvious coarsening of austenitic steel precipitation phase particles in the early and middle stage creep damage process in the existing metallographic film coating evaluation method, the method provided by the invention is used for determining the accuracy of the evaluation method based on the correlation between the grain reference orientation deviation (GROD) and the material strain. An evaluation model is constructed by utilizing GROD parameters, so that the characterization and evaluation method for researching the creep aging and damage of the austenitic steel is realized, the creep degradation degree of the ...

Large-screen heat dissipation device for system integration

The utility model discloses a large-screen heat dissipation device for system integration, which comprises a mounting shell, a cooling water tank is fixedly mounted on the bottom surface of the inner wall of the mounting shell, a circulating water pump is fixedly mounted on the right side of the top surface of the cooling water tank, and connecting pipes are mounted on the right side and the inner wall of the circulating water tank in a penetrating manner. The end, away from the circulating water tank, of the connecting pipe is fixedly connected with the water inlet end of the circulating water pump. The circulating water pump is started, so that cooling liquid in the cooling water tank circulates through the connecting pipe and the circulating water pipe, heat on the integrated large screen is absorbed through the cooling fins, the circulating liquid absorbs the heat and flows through the cooling water tank for cooling and heat dissipation, the motor is started, and the fan blades rotate ...

Brain-computer interface data preprocessing method and device

The invention relates to the technical field of data processing, in particular to a brain-computer interface data preprocessing method and device. The invention provides a brain-computer interface data preprocessing method, which comprises the following steps of: separating action potential signals from local field potential signals in original signals, performing variable-rate compression on the local field potential signals in a local field potential channel, dividing the local field potential channel into a key channel and a compression channel, and compressing the data of the key channel and the compression channel to different degrees, and recombining the data stream to reconstruct the compressed data. According to the multi-channel data compression method, multi-channel data is subjected to combined compression by utilizing the correlation between channels, public information is condensed out and is more completely reserved at a relatively high rate, and the purpose of maximizing ...

MAGNETIC INTELLIGENT CIRCUIT MODULE CONTROL SYSTEM USED TO CONSTRUCT MODEL

A magnetic intelligent circuit module control system used to construct a model, comprising an intelligent integrated circuit board (13,3). The intelligent integrated circuit board (13.3) is connected to input modules (3,7,8), output modules (2,6,12), control modules (1,10) and connection modules (4,5,9,11), and the intelligent integrated circuit board (13,3) is provided with a magnetic port for the purpose of attachment. The magnetic port comprises plastic insulators (1.4, 1.16), a permanent magnet (8.3) and metal conductors (1.5,1.15) embedded in the plastic insulators (1.4, 1.16); the magnetic port is divided into an input port and an output port. The control system has a simple structure, broad functionality, high extensibility, is easy to assemble and disassemble, and can be widely applied in electronic model building and for construction of teaching platforms for electronic experiments.

DDS-BASED CROSS-NETWORK SEGMENT COMMUNICATION METHOD

Disclosed in the present invention is a DDS-based cross-network segment communication method, comprising: respectively establish a domain a and a domain b with different IDs on two hosts A and B in different network segments, create a publisher on the A, create a subscriber on the B, register the same data type, create the same topic, create a data writer by the A to write data, and create a data reader by the B to read data; run a sub of the domain a and a pub of the domain b on a computer C with dual network cards; the sub receives data published by the pub of the host A, and issues the received data to the sub of the host B by means of the pub to implement communication. The method can realize cross-network segment communication of hosts in different network segments in real time and reliably, and facilitates better expansion of a system network.

METHOD, DEVICE AND SYSTEM FOR FILE DOWNLOAD IN IMS NETWORK

The embodiments of the invention disclose a method, device and system for file download in IMS network, wherein the method for file download in IMS network includes: acquiring the service identifier of the file download service of the terminal; performing the file download service authorization for the terminal according to the service identifier; if the authorization is passed, then performing session negotiation with the terminal, and returning FLUTE session parameter or returning FLUTE session parameter and the information of the download service to the terminal based on the result of the negotiation, so that the terminal receives the data sent by the media server according to the FLUTE session parameter. The technical solution above mentioned introduces the capability of IMS network in the procedure of file download, which improves the flexibility and the controllability in file download.

Multi -purpose braces in survey and drawing toolbox

... 本实用新型公开了种测绘工具箱多用背带，包括背带本体、设置于所述背带本体的首尾两个端部的两个钩扣及穿设于所述背带本体上的三个三档调节扣，每个三档调节扣的左右两侧均设置有连接耳，每个三档调节扣均通过连接耳连接有条胶皮带，胶皮带从同三档调节扣的两个连接耳的中部通孔内穿过，胶皮带的个端部成型有胶皮钉，胶皮带的另个端部对应于胶皮钉成型有连接通孔。本实用新型将原有测绘工具箱背带进行改进，在实现原有背带功能的基础上，还能在测量工作过程中绑定测绘三脚架的三条支腿，使其不发生移位，保证测绘三脚架的稳定性，同时它更易于携带，更便于使用，更易于推广应用。 ...

Shower head

The shower head comprises a shower head body and a water outlet adjusting device, in the structure of the water outlet adjusting device, a water inlet is formed in the lower surface of a shell and communicates with a water distribution cavity, a first flow channel and a second flow channel are located on the front side and the rear side of the water distribution cavity correspondingly, and the two ends of the first flow channel communicate with the water distribution cavity and a first water outlet disc correspondingly; the piston block is arranged in the water distribution cavity, outlets in the front end face and the rear end face of the piston block and an inlet in the lower surface of the piston block are both communicated with a pipeline structure of the piston block, and a communicating port of the first flow channel and the water distribution cavity and a communicating port of the second flow channel and the water distribution cavity are both staggered from the outlets. A sealing ...

Novel iron-based solid Fenton catalyst as well as preparation method and application thereof

The invention discloses a novel iron-based solid Fenton catalyst as well as a preparation method and application thereof, and belongs to the technical field of water treatment. The preparation method of the catalyst comprises the following steps: sequentially dropwise adding a mixed solution A of calcium salt and ferrite and an alkali solution B into a mixed solution C of oleic acid and absolute ethyl alcohol to obtain a turbid liquid D; centrifugally separating D, collecting supernate to obtain reaction mother liquor E, and washing, drying and grinding precipitate to obtain solid powder F; mixing E and F, and stirring to obtain a precursor solution; dropwise adding a sodium dihydrogen phosphate dihydrate solution into the precursor solution to obtain a mixture G; carrying out solvothermal reaction on the G to obtain a viscous substance; dispersing the viscous substance into absolute ethyl alcohol, centrifuging, washing, drying and grinding to obtain a dried substance; and uniformly dispersing ...

Analysis device for atomic fluorescence online reduction

The utility model discloses an analysis device for atomic fluorescence on-line reduction, which comprises a mounting rack, a mixing pipe is arranged on the inner side of the mounting rack, one end of the mixing pipe is provided with a discharge mouthpiece, the other end of the mixing pipe is provided with a feed mouthpiece, the feed mouthpiece and the discharge mouthpiece are both connected with the mounting rack through threads, and the feed mouthpiece and the discharge mouthpiece are connected with the mounting rack through threads. The mixing pipe is of a disc-shaped structure, the mounting frame is sleeved with an outer sheath, a liquid conveying pipe is arranged in the outer sheath, and a liquid inlet pipe and a liquid outlet pipe are arranged on the two sides of the outer sheath respectively; the infusion tube and the outer sheath are designed, the infusion tube is connected to the two ends of the liquid inlet tube and the two ends of the liquid outlet tube, it is guaranteed that ...

Fixing device for maintenance of aerospace generator

The invention discloses a fixing device for maintenance of a spaceflight generator, a passive overturning shaft is of a two-section disconnected design, one end of a broken shaft close to a passive clamping jaw is fixedly connected with the passive clamping jaw, and the other end of the broken shaft is fixedly connected with a displacement element; a fixed base is fixedly connected to the section, close to the driven clamping jaw, of the broken shaft. A magneto-rheological protection device is arranged between the displacement element and the fixed base, and when the driving overturning shaft executes the rotating action, the displacement element can always drive the fixed base to rotate through the magneto-rheological protection device; when the active clamping mechanism and the passive clamping mechanism are relatively close to each other, the displacement element cannot be close to the fixed base in a state that the extrusion force applied to the aerospace generator does not reach a ...

Analysis and evaluation method and system based on camouflage spray drawing spectrum

The invention discloses an analysis and evaluation method and system based on a camouflage spray drawing spectrum, and the method comprises the following steps: collecting the point cloud data of the outer surface of the contour of an actual installation and actual engineering scene, and constructing an equipment model; analyzing the acquired point cloud data of the outline surface, and extracting representative color information in the camouflage background image; adopting a preset modeling platform tool and virtual simulation software to construct a camouflage target model; evaluating the camouflage effect based on the image features to obtain graphic parameters of a target model background before and after scene camouflage; the system comprises a data acquisition module, a data processing module, a three-dimensional model construction module and an analysis and evaluation module. According to the method, the image segmentation algorithm of the minimum spanning tree algorithm is used ...

Rotatory feeder main valve structure

... 旋转供料器主阀结构由壳体、叶轮和端盖总成三大部分组成；旋转供料器的封闭式转子叶轮的四周与壳体和端盖之间，都有定的活动间隙；但是，壳体卸料口轴向尺寸却远小于封闭式转子叶轮的外廓尺寸；叶轮四周的缝隙，总是要进去物料的，可是缝隙垂直下方被壳体的内圆柱面完全挡住了，物料很难跑出去；物料在缝隙中积攒越来越多，使封闭式叶轮外端面摩擦力增大，额外增加了旋转供料器的电力损耗和机械磨损。改进办法是：加长卸料口轴向尺寸。让两端缝隙的垂直下方，始终有卸料口存在，缝隙中的物料可随时从卸料口卸掉。 ...

Charging pile control method and system

The invention provides a charging pile control method and system. The method comprises the steps of monitoring first distribution transformer off-network power of a charging station connected with a power grid in real time; if the first distribution transformer off-grid power is greater than the upper limit value of the distribution transformer off-grid power, adjusting the charging power of each charging pile according to the current energy storage state of the charging station, the current electricity price and the current power of each charging pile; if the first distribution transformer off-grid power is smaller than the distribution transformer off-grid power lower limit value, target power of each charging pile is calculated according to the first distribution transformer off-grid power, a distribution transformer off-grid power operation threshold value and the current power and the required power of each charging pile, and the charging power of each charging pile is adjusted to ...

Internet of Things equipment safety management system

The invention provides an Internet of Things equipment security management system. The system provides the following functional modules: an equipment life cycle management module, which is used for realizing equipment authentication and authentication, equipment access and equipment state management; the object model module is used for completing packaging and analysis of uplink and downlink data of the system by defining a product object model, and realizing real-time monitoring of an equipment state and an abnormal event and issuing of an equipment instruction; the intrusion detection module is used for monitoring and analyzing the flow of the system to actively discover malicious intrusion nodes; the equipment life cycle management module and the object model module communicate with each other through an Internet of Things application layer protocol MQTT mode; the intrusion detection module is used for realizing online detection through offline training of a neural network model; in ...

Lightweight voiceprint recognition method and system

The invention discloses a lightweight voiceprint recognition method and system, and belongs to the technical field of voiceprint recognition, and the method comprises the steps: constructing batch data according to the quality of audio in a pre-obtained training data set; according to the batch data and a loss function based on an area under a detection error tradeoff curve, performing knowledge distillation on a pre-acquired lightweight student model with to-be-updated parameters by using a pre-acquired high-performance teacher model with fixed parameters, and acquiring a high-performance lightweight student model; acquiring a registered speaker embedding layer and a real-time speaker embedding layer by using the high-performance lightweight student model; and calculating the similarity between the real-time speaker embedding layer and the registered speaker embedding layer, and obtaining a voiceprint recognition result according to the similarity. According to the method, the high-performance ...

Portable aero-generator life detection device

The invention provides a portable aero-generator life detection device. The portable aero-generator life detection device is provided with an internal resistance detection module, an electrode detection module, an audio detection module and an electric power detection module which are all connected to a main controller; the internal resistance detection module, the electrode detection module, the audio detection module and the electric power detection module are all external modules, and the external modules are inserted into a host of the detection device through plug wire holes; the device is more portable during detection, can separately detect each item, can also be connected to detect all items at the same time, and is higher in use freedom degree. During detection, each item of the generator is detected at the same time, and the main controller performs comprehensive analysis and calculation through data detected by the internal resistance detection module, the electrode detection ...

Guide pin positioning and guiding device for fixing OgawaI type coracoid fracture

The invention discloses a guide needle positioning and guiding device for fixing an OgawaI type coracoid fracture, and belongs to the technical field of medical instruments. Comprising a bottom plate, the bottom of the bottom plate is fixedly connected with a support rotating mechanism, the top of the bottom plate is fixedly connected with a cross-shaped moving mechanism, the top of the cross-shaped moving mechanism is fixedly connected with a top plate, and the top plate is fixedly connected with a universal guide mechanism. The accuracy of the placement position of the hollow screw is improved, the perspective frequency is reduced, the step ring sleeve is used for reducing the fit clearance between the third locking knob and the support and the like, and the rubber gasket provides pre-tightening force to prevent loosening. The positioning holes in the support are inclined holes, so that the support and the clavicle are more stable. The aperture of the rubber ring is slightly smaller than ...

Stator iron core press-fitting positioning device

A stator iron core press-fitting positioning device comprises an annular supporting frame, and four limiting mechanisms are arranged on the annular supporting frame at equal angles at intervals; four limiting mechanisms are arranged on an annular supporting frame at equal angle intervals, two adjusting seats are arranged in each limiting mechanism, and the two adjusting seats in the same limiting mechanism are driven by the same vertical rotating shaft, so that top pressing rods on the limiting adjusting seats extend out in the same length, the limiting vertical rods keep moving in the vertical state, and the limiting effect is good. Due to the fact that the same limiting vertical rod is supported by the two jacking rods moving at the same speed, the limiting vertical rod is effectively prevented from inclining when the limiting vertical rod extrudes the silicon steel sheets, and therefore it is guaranteed that the silicon steel sheets are vertically stacked.

Video feature extraction method, video satisfaction evaluation method and related devices

The invention provides a video feature extraction method, a video satisfaction evaluation method and related devices, and relates to the technical field of artificial intelligence such as deep learning, object recognition, natural language processing and big data. The method comprises the following steps: packaging continuous image frames forming a target video into a continuous image frame group by using a sliding window technology; taking each image frame in the continuous image frame group as different nodes, and establishing hyperedges among a plurality of nodes with node similarity to obtain an initial sub-hypergraph; performing hypergraph convolution operation on the plurality of nodes connected by the hyperedges to obtain updated nodes; performing weighted average on the image features corresponding to the updated nodes to obtain updated sub-hypergraphs; and performing weighted average processing on the image features of the updated sub-hypergraphs corresponding to different continuous ...

Hierarchical anti-interference method based on ZigBee priority

The invention discloses a hierarchical anti-interference method based on ZigBee priority. According to the method, a WiFi module and a ZigBee module are carried on an Internet of Things gateway, a WiFi wireless access point is deployed into a three-channel cellular network communication model, a WiFi communication index is monitored in real time, and the interference degree is calculated. Channel state evaluation is carried out through a mode of combining a packet acceptance rate PRR and a packet error rate PER of a heartbeat packet, and whether interference occurs in ZigBee transmission is judged. A hierarchical anti-interference channel hopping algorithm is used to reduce or eliminate interference, a ZigBee channel is selected in a WiFi channel gap when the interference just occurs, an outer WiFi channel is used to enlarge a selection range when the interference is still not solved, and a self WiFi channel is adjusted to select an optimal ZigBee transmission channel when the interference ...

Sealing detection device for petrochemical engineering pipeline

The utility model discloses a sealing detection device for a petrochemical pipeline, which comprises two sealing shells, the two sealing shells are the same in size and are clamped together, the two sealing shells are made of transparent materials, and two limiting plates are symmetrically and fixedly connected to the sides, away from each other, of the two sealing shells. A fixing block is arranged between the two limiting plates on the same sealing shell, and the fixing blocks are fixedly connected to the outer wall of the sealing shell on the same side. The device has the advantages that the device can detect the sealing performance of the pipeline connecting position during installation, and when the device is used, the sealing performance of the pipeline connecting position is greatly improved. The two sealing shells wrap the connecting position of the pipelines through the fastening mechanism, then water is injected into the two sealing shells, the sealing performance of the connecting ...

Control method and device for increasing charging capacity

The invention provides a control method and device for increasing the charging capacity. The method comprises the steps that the spare capacity of a transformer, the minimum spare capacity of the transformer and the rated charging power of a single charging pile are obtained; judging whether the spare capacity of the transformer is smaller than the rated charging power of a single charging pile; if the spare capacity of the transformer is smaller than the rated charging power of the single charging pile, judging whether the spare capacity of the transformer is smaller than the minimum spare capacity of the transformer; and if the spare capacity of the transformer is smaller than the minimum spare capacity of the transformer, a charging load reduction command is issued to the charging pile in the charging state, so that the charging pile in the charging state reduces the charging load based on the charging load reduction command. According to the scheme, under the condition that no transformer ...

Slag removal system for aluminum alloy production

The invention discloses a deslagging system for aluminum alloy production, and belongs to the field of aluminum alloy production. A slag removal system for aluminum alloy production comprises a slag removal module used for removing slag. The slag removal module comprises a slag removal box, and the slag removal box sequentially comprises a molten aluminum inlet, a storage box, a vertical filter box and a molten aluminum outlet from top to bottom; a slag remover is arranged in the storage box, the upper end of the storage box communicates with the molten aluminum inlet, the lower end of the storage box communicates with the vertical filter box, and opening and closing assemblies are arranged between the upper and lower ends of the storage box and the molten aluminum inlet and the vertical filter box correspondingly to control opening and closing between the upper and lower sides of the storage box; the lower end of the vertical filter box is communicated with a slag box; a filtering assembly ...

Voice wake-up method and system, storage medium and electronic equipment

The embodiment of the invention provides a voice wake-up method and device, a storage medium and electronic equipment. The method comprises the steps that a to-be-recognized voice signal is acquired; extracting a target feature vector of the to-be-recognized voice signal; and inputting the target feature vector to a speech recognition neural network to output a speech classification result corresponding to the speech signal to be recognized through the speech recognition neural network, the speech recognition neural network being composed of a first convolutional layer, a first batch of normalization layers, a second convolutional layer, a third convolutional layer, a fourth convolutional layer, a fifth convolutional layer and a sixth convolutional layer which are sequentially connected in series. The first convolution layer is composed of a first batch of normalization layers, a second batch of normalization layers, a splicing layer and a full connection layer, and the second convolution ...

Production line stability dynamic analysis method and system based on fault tree

The invention discloses a method for evaluating the stability of a production line based on a fault tree, and the method comprises the following steps: obtaining a plurality of parameters, collected by a sensor of each piece of equipment on the production line in a period of time, of the equipment, and calculating a process capability index corresponding to each parameter, and inputting the obtained process capability index corresponding to each parameter corresponding to each device into a pre-trained multiple linear regression model to obtain a stability index of the device, and inputting the stability index of each device into a pre-constructed stability analysis model based on a fault tree to obtain the stability of the device. And obtaining a final stability judgment result of the equipment. The technical problem that actual deployment operation cannot adapt to the real-time requirement of a production environment due to the fact that an existing machine learning method is complex ...

Photovoltaic panel output performance loss analysis system and method considering ash deposition rate

The invention discloses a photovoltaic panel output performance loss analysis system and a photovoltaic panel output performance loss analysis method considering an ash deposition settlement rate. Comprising a particle size sensor, a wind speed sensor, a wind direction sensor, a millisecond timer, a photovoltaic panel, an angle-adjustable support, a voltage/current sensor, an irradiance sensor, an angle sensor, an environment temperature sensor, a thermal imaging sensor, a multi-channel data acquisition card, a 433Mhz wireless transceiver module and a PC host. By adopting the technical scheme of the invention, the influence that the traditional photovoltaic energy efficiency analysis method cannot quantify the accumulated dust is overcome, a more accurate loss result can be obtained, and the energy efficiency loss of the photovoltaic panel caused by accumulated dust sedimentation is independently quantified.

Accurate evaluation method for creep degradation of martensite heat-resistant steel for ultra-supercritical unit

The invention belongs to the technical field of creep evaluation of critical unit heat-resistant steel, and discloses a precise evaluation method for creep degradation of martensite heat-resistant steel for an ultra-supercritical unit. According to the method, the EBSD technology is introduced based on the physical principle of electron back scattering diffraction, the orientation parameter change rule of martensitic heat-resistant steel before and after creep deformation is obtained based on the orientation parameter of a submicron scale measurement material, and the method aims at achieving creep deformation damage characterization and residual life evaluation of a unit heating surface pipeline under actual service. And the problem that the creep damage of the ultra-supercritical unit pipeline component is difficult to evaluate is solved. Compared with the prior art, the method has the advantages that the creep damage process of the martensitic steel is researched from the microscopic ...

Building elevation risk assessment method based on knowledge graph

The invention discloses a building elevation risk assessment method based on a knowledge graph. The risk assessment method comprises the steps that all risk factors y form a risk factor set Y; all the detection indexes t form a detection index set T; obtaining a falling risk set R of the building outer wall; all falling risk assessment knowledge forms a knowledge data set K; completing the construction of an ontology layer; recording of knowledge data is completed; constructing case nodes, and respectively connecting the case nodes with the corresponding risk factor nodes and the detection index nodes; completing the construction of the knowledge graph; and inputting the corresponding risk factor values and/or the detection result values into the knowledge graph to query corresponding risk level nodes and similar case nodes. The method has the advantages that the expert experience is subjected to digital modeling by utilizing the knowledge graph technology, the professional field experience ...

Method for analyzing defect recognition effect of building outer wall and building outer wall model

The invention discloses a building outer wall model which comprises a concrete wall body, and a hole is formed in the concrete wall body and used for simulating a building window. Meanwhile, outer wall defects are arranged on the concrete wall body, and the outer wall defects comprise the hollowing defect and/or the water seepage defect. The outer wall defect is preset on the surface of a mortar layer of the outer wall body. And the cavity is formed in the middle lower part of the wall body. The exterior facing material adopted by the wall body comprises facing bricks, coating, thermal insulation mortar or mosaic facing bricks.

System for detecting concentration of accumulated dust on photovoltaic panel based on image method and application thereof

The invention discloses a system for detecting the dust deposition concentration of a photovoltaic panel based on an image method and application of the system. The system comprises an unmanned aerial vehicle, a high-definition camera, an infrared distance measuring sensor, a meteorological sensor, a first scheduler, a second scheduler, a wireless communication device, a GPS positioning device and an airborne processor. A high-definition camera is mounted below the unmanned aerial vehicle; the infrared distance measuring sensor and the high-definition camera are mounted in parallel and are fixed below the unmanned aerial vehicle; the meteorological sensor is mounted at the top of the UAV; the first scheduler is mounted above the high-definition camera; the second dispatcher is installed below the meteorological sensor. The wireless communication device is integrated on the unmanned aerial vehicle and is connected with the GPS positioning device and the airborne processor. According to the ...

Bathroom mirror cabinet

The bathroom mirror cabinet comprises a cabinet body, the cabinet body is provided with a cavity used for containing a garbage can, and an opening of the cavity faces rightwards; the bathroom mirror cabinet further comprises a first linear driving mechanism, a second linear driving mechanism, a supporting plate and a can cover used for covering the garbage can, all of which are located in the cavity. The cabinet body is provided with a sealing plate, the sealing plate is located on the right side of the supporting plate and connected with the supporting plate, and the sealing plate can shield the opening of the cavity; the output end of the first linear driving mechanism is connected with the supporting plate so as to drive the supporting plate to move left and right and enter and exit from the cavity. The output end of the second linear driving mechanism is connected with the can cover to drive the can cover to move up and down. The bathroom mirror cabinet is unique in design and easy ...

Control method of control device and electronic equipment

The invention provides a control method of a control device and electronic equipment, and the control device determines the working parameters of air parameters obtained by an air detection unit according to the electric quantity information of an internal power supply, so that different detection strategies are adopted when the electric quantity of the control device is in different states; the air parameters can be obtained as much as possible, and the power consumption of the control device can be saved. Specifically, when the residual electric quantity is sufficient, more times of air parameter detection can be executed through more air detection units, and the real-time performance of the air parameters is improved as much as possible; when the residual electric quantity is insufficient, the number of the air detection units used for air parameter detection and the detection frequency are reduced, further consumption of the electric quantity of the control device is reduced, the service ...

Voice wake-up method and system based on time domain binary neural network

The invention discloses a voice wake-up method and system based on a time domain binary neural network, and the method comprises the steps: obtaining a to-be-recognized audio file, and obtaining a to-be-processed voice signal; carrying out acoustic feature extraction on the to-be-processed voice signal, and carrying out variable-dimension processing on the to-be-processed voice signal to obtain an acoustic feature after the variable-dimension processing; inputting the acoustic features subjected to variable-dimension processing into a pre-trained time domain binary neural network TBNN model to obtain keyword and non-keyword probability output; whether the system is awakened or not is judged according to whether the maximum probability in the keyword and non-keyword probability output is the keyword or not, the parameter quantity and the calculation quantity of a neural network classifier are greatly reduced, meanwhile, the awakening speed is remarkably increased, and the power consumption ...

Automatic identification method for building outer wall facade target object and electronic equipment

The invention discloses an automatic identification method for a building outer wall facade target object, which is characterized in that the building outer wall facade target object is identified through a trained identification model, and the target object comprises a window, an air conditioner, a clothes airing rod or an airing object. The method for establishing the target object recognition model comprises the following steps: S1, acquiring a building outer wall facade sample image; s2, marking the obtained sample image; s3, dividing the sample images and the corresponding annotation images into a training set and a test set; s4, constructing an outer wall target object image semantic segmentation model based on a PSPNet framework; and S5, training an outer wall target object image semantic segmentation model by using the training set to obtain a trained target object recognition model.

Gear testing equipment for gear part repair and inspection completion link

The invention relates to gear testing equipment for a gear part repair completion inspection link, which is provided with a testing table, and an I-type hydraulic cylinder and a meshing testing device are mounted on the testing table; the I-type hydraulic cylinder is connected with a position seat, and a loading device and a rotary testing device are mounted on the position seat; the loading device is composed of a bearing assembly and a ballasting assembly. The bearing assembly is composed of a left base installed on the position base, a cushion block and an installation shaft, wherein the cushion block and the installation shaft are both installed on the left base. Under the state that the gear can be conveniently inserted and fixedly installed, the gear can be driven to conduct an automatic rotation experiment, the gear and the rack can be controlled to conduct a meshing cooperation experiment, use and operation are convenient and fast, and experiment feasibility is high.

Speaker identification method and system

The invention relates to a speaker identification method and system. The method comprises the following steps: acquiring a trained cyclic generative adversarial network; acquiring real-time audio data; extracting frame-level Mel spectrum features of the real-time audio data, performing voice activity detection on the extracted frame-level Mel spectrum features of the real-time audio data, and determining the frame-level Mel spectrum features of voice contained in the real-time audio data; mapping the voice-containing frame-level Mel spectrum features in the real-time audio data and the voice-containing frame-level Mel spectrum features in the registered audio data by using a common voice frame-level Mel spectrum feature generator in the trained cyclic generative adversarial network, and determining a first output result and a second output result; determining an identification result according to the first output result, the second output result and a neural network model of a speaker identification ...

Combined treatment method for antibiotic production wastewater

The invention relates to the technical field of wastewater treatment, and provides a combined treatment method for antibiotic production wastewater, which comprises the following steps: A1, carrying out enhanced hydrolysis on wastewater to obtain enhanced hydrolysis wastewater; a2, sequentially carrying out coagulation treatment, fluidized bed separation treatment and anaerobic biological treatment on the enhanced hydrolysis wastewater; the coagulation treatment is carried out by adding a nano coagulant, and the composition of the nano coagulant is Fe2O3-CaO-NiO. Through the technical scheme, the problems of low removal rate of suspended solids and low COD removal efficiency after antibiotic wastewater treatment in the prior art are solved.

Data processing method and device, electronic equipment and storage medium

The invention provides a data processing method and device, electronic equipment and a storage medium, and relates to the technical field of data processing, in particular to the technical fields of big data, Internet and the like. The specific implementation scheme is as follows: determining a plurality of inspection hierarchies inspected in sequence based on a target task and storing the inspection hierarchies in a storage medium; reading a to-be-inspected set from a plurality of inspection hierarchies stored in a storage medium according to the inspection sequence; adjusting the original P value of the inspection index in the to-be-inspected set based on a specified method to obtain a target P value; based on the target P value and the significance level of the to-be-inspected hierarchy, inspecting the significance of the to-be-inspected set; determining the significance of the to-be-inspected hierarchy based on the significance of the to-be-inspected set; and when the significance of ...

Building outer wall defect distinguishing method and electronic equipment

The invention discloses a building outer wall defect discrimination method, which comprises the following steps of S1, obtaining an infrared image of a building outer wall, and obtaining an outer wall surface area in a visible light image of the building outer wall; s2, based on an image affine transformation algorithm, carrying out image matching on the visible light image and the infrared image of the building outer wall; s3, based on the matching information of the visible light image and the infrared image of the building outer wall, determining a building outer wall area in the infrared image of the building outer wall; and S4, reading temperature data of the infrared image of the building outer wall, and determining an outer wall defect area and a defect type according to the temperature data.

Data processing method and device based on heterogeneous graph neural network

The invention provides a data processing method based on a heterogeneous graph neural network, and the method comprises the steps: obtaining the heterogeneous graph information of a target service, the heterogeneous graph comprising a plurality of nodes and connection edges representing the connection relation of the plurality of nodes; determining neighbor nodes of the target node corresponding to each meta path based on the multiple meta paths; determining the confidence coefficient of each neighbor node of the target node corresponding to each meta path based on the transition probability of the target node corresponding to each meta path and each neighbor node and the similarity of the target node and each neighbor node; aggregating the neighbor nodes of the target node corresponding to each meta-path with the confidence level reaching the standard, and determining the node-level embedding representation of the target node corresponding to each meta-path; and aggregating the node-level ...

Building outer wall risk assessment method and electronic equipment

The invention discloses a building outer wall risk assessment method, which assesses the risk of a building outer wall through a building outer wall risk assessment model constructed based on an analytic hierarchy process, and the building outer wall risk assessment model comprises S = (A + B) * H * D, where S is the risk level of a building outer wall body, A is a basic factor risk score, B is an expansion factor risk score, and D is an expansion factor risk score. H is a house height correction coefficient, and D is a population density correction coefficient. According to the floor height of the building where the outer wall is located and the population density of the geographic position, the height correction coefficient H corresponding to the house floor number and the population density corresponding correction coefficient D are judged, and the building outer wall body risk level S is obtained by combining the basic factor score and the expansion factor score. And further considering ...

Thermal expansion self-adaptive sintering flue gas circulation cover

The invention relates to a thermal expansion self-adaptive sintering flue gas circulation cover which comprises flue gas cover rails, the flue gas cover rails are arranged on the two sides of a sintering trolley, a plurality of flue gas covers connected with one another are arranged on the flue gas cover rails, the two sides of each flue gas cover are connected with a frame respectively, and wheels capable of rolling along the flue gas cover rails are arranged at the bottom of the frame. The wheels of the smoke hoods can roll along the smoke hood rails, so that the smoke hoods generate displacement, and deformation caused by thermal expansion is offset in a self-adaptive manner; the interiors of the smoke hoods are communicated with each other, the front end of the foremost smoke hood and the rear end of the rearmost smoke hood are both connected with end plates, scrapers are hinged to the bottoms of the end plates, and sealing assemblies connected with the sintering pallet in a sealed ...

Photovoltaic panel surface ash deposition distribution clustering identification method and system

The invention discloses a photovoltaic panel surface ash distribution clustering identification method and system, and the method comprises the following steps: collecting a photovoltaic panel surface ash visible light image, and obtaining a to-be-processed image; performing distortion correction on the to-be-processed image to obtain a three-dimensional color image; performing silver wire removal on the three-dimensional color image to obtain a removed image; performing equivalent segmentation on the removed image to obtain a segmented image set; and utilizing a dust deposition evaluation network to extract dust deposition concentration information parameters of the segmented image set, and clustering the dust deposition concentration information parameters to obtain a dust deposition concentration distribution condition. According to the invention, the method combines image recognition with a neural network modeling method to achieve the measurement of the uneven dust deposition concentration ...

Airport flight area target real-time detection method based on multi-scale feature decoupling

The invention discloses an airport flight area target real-time detection method based on multi-scale feature decoupling, and the method comprises the steps: 1, obtaining an airport flight area monitoring video, and constructing an airport flight area target detection data set; 2, constructing a multi-scale feature fusion module to realize detection of targets of different scales; 3, classifying and positioning tasks in target detection are decoupled, and a learning network based on feature decoupling is constructed; and 4, adding a learning network based on feature decoupling and a multi-scale feature fusion module into a YOLOv5 target detection network, and training and optimizing a target detection model in combination with a loss function. According to the method, shallow detail information and deep semantic information are aggregated by using the multi-scale feature fusion module, the detection capability of targets of different scales is enhanced, classification and positioning tasks ...

Voice wake-up method and system based on mixed precision quantization neural network

The invention discloses a voice wake-up method and system based on a mixed precision quantization neural network. The method comprises the following steps: acquiring a to-be-processed voice signal by using a microphone of voice wake-up equipment; performing feature extraction on the to-be-processed voice signal to obtain a logarithmic Mel spectrum feature; inputting the logarithmic Mel spectrum features into a mixed precision quantization neural network, and determining a classification result corresponding to the logarithmic Mel spectrum features; wherein the mixed precision quantization refers to that for the requirement of each layer on parameter calculation precision in the network, different quantization digits are adopted for parameter quantization and operation simplification of parameters and operation of each layer; and if a classification result corresponding to the logarithmic Mel spectrum feature is a wake-up word and exceeds a set time limit, waking up the voice wake-up device ...

Signal acquisition device of brain-computer interface and brain-computer interface system

The invention discloses a signal acquisition device of a brain-computer interface, which relates to the field of biomedicine, is applied to a brain-computer interface system, and comprises a data channel and n electrodes, the n electrodes are connected in parallel and then adopt the same data channel to realize data communication with a processing module, the limitation of high channel number and huge data volume on the brain-computer interface technology during application is reduced, signals obtained on one data channel are superposition of neural signals collected by the electrodes connected to the data channel, and the situation that the neural signals are lost is avoided; meanwhile, the density of the neural signals on the data channel is increased, so that the high-density neural signals can be obtained, the use of lead resources is reduced, the production difficulty and cost are reduced, the burden of subsequent data processing is relieved, the workload is reduced, and the working ...

Common pronunciation speaker identification method and system based on knowledge distillation

The invention discloses a common pronunciation speaker identification method and system based on knowledge distillation. The method comprises the following steps: obtaining a common pronunciation speaker embedded layer network; the method comprises the following steps: collecting registered audio of a speaker, performing spectrum feature extraction, inputting an extracted registered audio spectrum into a trivial pronunciation speaker embedded layer network, and obtaining output of the registered audio spectrum in the trivial pronunciation speaker embedded layer network; obtaining real-time audio data, and detecting whether the real-time audio data is ordinary pronunciation; if yes, performing feature extraction on the real-time audio data, and inputting the extracted real-time audio spectrum into the trivial pronunciation speaker embedded layer network to obtain the output of the real-time audio spectrum in the trivial pronunciation speaker embedded layer network; and performing cosine ...

Preparation method of Chinese herbaceous peony and liquorice root soup granules

The invention discloses a preparation method of Chinese herbaceous peony and liquorice decoction granules, and relates to the technical field of traditional Chinese medicine preparation. Comprising the following steps: S1, adding water into Chinese herbaceous peony and liquorice to decoct together, combining filtrate, and concentrating under reduced pressure to prepare Chinese herbaceous peony and liquorice soup extract; and S2, putting an excipient into a fluidized bed chamber as a solid material, taking the Chinese herbaceous peony and licorice root decoction extract or mixed clear paste prepared from the Chinese herbaceous peony and licorice root decoction extract as a liquid material for fluidized bed granulation, and carrying out fluidized granulation in a fluidized bed granulator through a compression spray gun. The particle size of the prepared particles meets the particle size standard of the Chinese pharmacopoeia, the quality is uniform and stable, and the key quality attribute ...