书包

方茶几（JC2219）

沙发（JC2216-1）

圆几（JC2220-1）

Encoder error measurement method and system based on angular domain resampling iteration

The invention belongs to the technical field of encoder error measurement, and particularly discloses an encoder error measurement method and system based on angular domain resampling iteration, and the method comprises the steps: S1, obtaining a time domain analysis signal of an encoder; s2, obtaining an instantaneous angular velocity signal, containing error components, of the encoder; s3, carrying out time domain synchronous averaging on the instantaneous angular velocity signals in the step S2; s4, integrating and calibrating the signal in the step S3; s5, obtaining an angular domain signal of the encoder; s6, obtaining an instantaneous angular velocity signal, containing an error component, of the encoder; s7, performing angular domain synchronous averaging on the instantaneous angular velocity signals in the step S6; s8, integrating and calibrating the signal after angular domain synchronization averaging; s9, angular domain nonlinear resampling is carried out on the encoder signal ...

MOBILE TERMINAL

A mobile terminal, comprising a display screen (1), a fingerprint module (2), and a flexible circuit board (3) positioned below the fingerprint module (2). The fingerprint module (2) is sandwiched and fixed between the display screen (1) and the flexible circuit board (3). The display screen (1) and the fingerprint module (2) are separately connected to the flexible circuit board (3) electrically. The flexible circuit board (3) is further electrically connected to a main board of the mobile terminal.

沙发（JC2213）

床架（JC2216）

Application login method and device, computer equipment and storage medium

The invention relates to an application login method and device, computer equipment, a storage medium and a computer program product. The method comprises the steps that a security client receives a to-be-verified parameter sent by a target application, the to-be-verified parameter comprises signature information and a first public key, and the signature information is generated and sent after the target application performs signature processing on a random code by using a first private key in response to a first starting operation; the first private key and the first public key are a pair of keys stored in an application certificate of the target application; the security client generates a security bill based on the random code and returns the security bill to the target application under the condition that the first public key is adopted to verify that the signature information passes, so that the target application sends the security bill and the random code to the IDP service, and ...

Method and device for treating atmospheric dust pollution of steel enterprise based on five-dimensional integration

The invention discloses a method and a device for treating atmospheric dust pollution of a steel enterprise based on five-dimensional integration. According to the method, a five-dimensional integrated intelligent environment-friendly management and control system integrating atmospheric pollution management, water pollution management, soil pollution management, hazardous waste pollution management and solid waste pollution management is established; environmental protection is evaluated by means of shell isolation, emission detection, model establishment and the like; the whole factory area covers the spraying dust removal device matrix; monitoring, collecting, uploading and analyzing emission data on line; controlling the spraying dust removal device to operate according to the analysis result. The spray dust removal device is composed of a first air duct, a second air duct and a third air duct which are concentrically sleeved, and spiral fins are arranged in the three air ducts, so ...

Unobstructed connecting device and turbocharging device comprising unobstructed connecting device

The invention discloses an unobstructed connecting device and a turbocharging device comprising the unobstructed connecting device. The barrier-free connecting device comprises a shaft and a ball shaft part. The ball shaft part is arranged on the shaft in a surrounding mode. The turbocharging device comprises a pressure end, a vortex end and an intermediate body. The pressing end comprises a pressing shell and a pressing wheel, and the turbine end comprises a volute and a turbine. The pressing wheel and the turbine are fixedly connected with the two ends of the barrier-free connecting device respectively. The pressing shell and the volute are fixedly connected with the middle body. According to the turbocharging device, a motor does not need to be arranged, so that the structure is simple, the size and the weight are remarkably reduced, and the turbine energy recovery efficiency is higher. According to the invention, the ball bearing part is arranged to have radial bearing and axial bearing ...

METHOD AND DEVICE FOR DELETING CASCADE SNAPSHOT

Disclosed are a method and device for deleting a cascade snapshot. The method is applied to a storage apparatus, and the storage apparatus comprises a LUN. The LUN corresponds to a plurality of cascade snapshots, and at least comprises a first snapshot, a second snapshot and a third snapshot, wherein the second snapshot is a parent snapshot of the first snapshot, and the third snapshot is a child snapshot of the first snapshot. Upon receiving an instruction to delete the first snapshot (401), the first snapshot comprising target data; migrating information of the target data to the second snapshot (402), wherein the information of the target data comprises a time stamp of the first snapshot, the time stamp of the first snapshot being set when the first snapshot is created; setting an identifier of the parent snapshot corresponding to the third snapshot as an identifier of the second snapshot (403), the set identifier of the parent snapshot corresponding to the third snapshot indicating ...

Container section bar preliminary treatment row system of spouting

... 本实用新型公开了一种集装箱型材预处理排喷系统，包括喷漆室，型材传送辊道贯穿喷漆室，在喷漆室一侧设有液压喷漆泵、油漆桶和液压工作站，液压工作站与液压喷漆泵连接，液压喷漆泵连接进油管并插入到油漆桶内，在喷漆室内位于型材传送辊道的上方和下方设有二根支撑梁，在每根支撑梁上沿其纵向设有多个喷枪，在每根支撑梁上对应每个喷枪处分别设有喷枪固定可调节组件，每个喷枪分别通过喷枪固定可调节组件安装在支撑梁上且分别通过油管与液压喷漆泵的出油口连接。有益效果是：能够避免油漆浪费和污染环境，喷漆效果好，节油环保；进一步提高了油漆利用率，避免了油漆浪费，降低了喷漆成本。 ...

Underground space navigation positioning method and navigation positioning system

The invention provides an underground space navigational positioning method and a navigational positioning system. The navigational positioning method comprises the following steps: controlling a total station to autonomously set up a station in an underground space; automatically tracking a positioning prism arranged on the moving target by using the total station to obtain first position information; acquiring first speed information by utilizing a laser radar odometer, acquiring second speed information by utilizing an odometer, and resolving by utilizing an inertial navigation device to obtain attitude information, third speed information and second position information; and establishing a data fusion filter through an information processor according to the first position information, the first speed information, the second speed information, the attitude information, the third speed information and the second position information, and obtaining an integrated navigation positioning ...

Optical thin film element and preparation method thereof

The invention provides an optical thin film element and a preparation method thereof, relates to the technical field of photoelectricity, and aims to solve the problem that the surface shape index of the optical thin film element is reduced due to stress in the prior art, so that the performance and quality of the device are greatly improved. The method comprises the following steps: providing a first substrate which comprises a surface to be coated; the to-be-coated face of the first substrate is pretreated, and a second substrate meeting the theoretical aperture index and the theoretical aperture local error index is formed; forming a plurality of coating layers on the to-be-coated surface of the second substrate by adopting a coating process to obtain a to-be-detected element; judging whether the to-be-detected element meets a preset aperture index and a preset aperture local error index or not; and determining whether the to-be-detected element is a qualified product according to a ...

Multi-dimensional analysis method and system based on video AI

The invention discloses a multi-dimensional analysis method and system based on video AI, and the method comprises the following steps: collecting and preprocessing a teaching video, and respectively extracting a video stream and voice of the teaching video for processing; performing target detection based on a target detection algorithm to obtain all target objects in the teaching video; performing attitude analysis on the target object based on an attitude evaluation algorithm; and performing action recognition by adopting a trained full-connection neural network, and performing behavior statistics on the target object according to an S-T algorithm to obtain an analysis result of teaching evaluation. According to the invention, the teaching video is collected and preprocessed, the video stream and the voice of the teaching video are respectively extracted and processed, and the behavior statistics of the target object is carried out according to the S-T algorithm to obtain the analysis ...

Automobile data recorder

... 本实用新型公开了一种行车记录仪，包括CPU、车辆点烟器电源、电源管理单元、高清摄像头、图像传感器、存储单元、LCD显示屏、重力传感器和预警模块，车辆点烟器电源的一输出端与电源管理单元的输入端连接，电源管理单元为CPU供电，高清摄像头摄取行车过程中的图像并将其发送到图像传感器，图像传感器将图像转换成视频并将视频发送到CPU，所述CPU将视频发送到存储单元进行存储，并控制LCD显示屏播放视频，重力传感器与CPU连接、用于检测车辆碰撞情况并将检测结果传送到CPU，CPU控制预警模块以声光的形式进行报警。实施本实用新型的行车记录仪，具有以下有益效果：具有预警功能、有利于驾驶员的安全驾驶。 ...

Multi-layer board laminating device

The invention discloses a multilayer board laminating device, and relates to the technical field of multilayer boards, the multilayer board laminating device comprises a support seat, an extrusion structure is fixedly installed in the middle of an inner cavity of the support seat, pressing structures are fixedly installed in the inner cavity of the support seat and located on the two sides of the extrusion structure, and the bottom of the inner cavity of the support seat is in transmission connection with a transmission belt; and a multi-layer plate is in transmission connection with the upper surface of the transmission belt, a heater is fixedly installed on the front face of the support base, the heater is electrically connected with a heating roller pipe, and the upper end and the lower end of the outer wall of the heating roller pipe are fixedly installed at the bottom of an extrusion structure. When the sliding block is moved, the outer wall of the threaded sleeve is guided under the ...

Data management method and system for federal cloud

The invention relates to a data management method and system for federated cloud, and the method comprises the steps: obtaining an identity authentication request, carrying out the identity verification of a client, granting a data management authority to the client after the identity verification of the client is passed, and building the communication with the client. And receiving the updated local model and weighting the updated local model to generate a new global model, wherein the local model performs local model training on the local data sample through the client and exchanges parameters among different local models to obtain the updated local model. Based on the new global model and the data management authority, a first request instruction is received through the CSP, the execution authority of the client to the first request instruction is confirmed, the first request instruction is executed according to the execution authority, and the first request instruction is used for updating ...

Insulator state detection method and device, electronic equipment and medium

The invention discloses an insulator state detection method and device, electronic equipment and a medium, and the method comprises the steps: collecting a maximum electric field stress parameter and an insulator leakage current parameter of a to-be-detected insulator through a transmitter in an insulator state detection model; transmitting the maximum electric field stress parameter and the insulator leakage current parameter to a receiver in the insulator state detection model; determining a current detection parameter value of a preset detection parameter of the insulator to be detected through the receiver according to the maximum electric field stress parameter and the insulator leakage current parameter; determining a reference boundary value of a preset detection parameter of the insulator to be detected through the receiver; and determining the state of the insulator to be detected according to the current detection parameter value and the reference boundary value. According to ...

Method and device for simulating coating cooling of optical part based on finite element thermal coupling

The invention relates to the technical field of optical coating, and provides a method and a device for simulating coating cooling of an optical part based on finite element thermal coupling. The method comprises the following steps: establishing a finite element analysis model comprising a fixture and an optical part, and setting material attributes of the fixture and the optical part; applying temperature boundary conditions to the surface of the finite element analysis model, wherein the temperature boundary conditions comprise a heating section, a constant temperature section and a cooling section which are sequentially arranged according to the coating time progress; solving the finite element analysis model according to material attributes and temperature boundary conditions to obtain thermal response characteristic data of the optical part in the cooling section; and according to the thermal response characteristic data, determining the temperature parameters of the applied temperature ...

Sectional type steel formwork system for settlement joint construction and construction method

The invention discloses a sectional type steel formwork system for settlement joint construction and a construction method. The system comprises a sectional type steel formwork unit, a steel formwork width adjusting unit arranged on the sectional type steel formwork unit and a gear transmission unit arranged on the steel formwork width adjusting unit. The sectional type steel formwork unit comprises a first sectional type steel formwork and a second sectional type steel formwork which are oppositely arranged in parallel in a spaced mode. Each of the first sectional type steel formwork and the second sectional type steel formwork comprises at least two steel formworks which are spliced with each other and can adapt to construction of shear walls with different lengths; the steel formwork width adjusting units are arranged between every two opposite steel formworks on the first sectional type steel formwork and the second sectional type steel formwork. The gear transmission unit is driven ...

Automatic detection system and detection method for external leakage of 120 main valve

The invention relates to the technical field of 120 main valve detection, and particularly discloses an automatic detection system and a detection method for external leakage of a 120 main valve. The automatic detection system comprises an air source supply system connected with a main valve assembly and a release valve assembly in the 120 main valve, an air storage cylinder connected with the air source supply system, an air path connected with the air storage cylinder and the main valve assembly, a clamping mechanism used for clamping the main valve assembly, and a sealing mechanism used for sealing the main valve assembly. The push rod assembly is used for controlling the release valve assembly; an air pipe connected with an air path is arranged at the output end of the air storage cylinder, and a detection pipeline is arranged on the air pipe. Compared with the prior art, the full-automatic performance test method has the advantages that the mode of manually brushing soapy water is ...

Hepatocellular carcinoma liver transplantation prognosis prediction system based on NLR-PLR score

The invention discloses a hepatocellular carcinoma liver transplantation prognosis prediction system based on NLR-PLR scores, and relates to the technical field of liver cancer transplantation prognosis. According to the invention, NLR and PLR calculation is carried out; the method comprises the following steps: drawing an ROC curve, and obtaining NLR and PLR cut-off values according to the ROC curve; grouping according to NLR and PLR cut-off values, marking NLR less than 3.37 and PLR less than 105.96 as 0 score, marking NLR greater than or equal to 3.37 and PLR greater than or equal to 105.96 as 1 score, and adding the two scores as an NLR-PLR score; according to the invention, a joint scoring system is established according to the cut-off value determined by the ROC curve and the survival analysis result, and can be used as another reference standard for selecting liver transplantation receptors besides the UCSF standard.

Cable temperature anomaly intelligence alarm device

... 电缆温度异常智能报警装置，涉及种电缆温度异常报警装置。对电缆测温的研究尚不成熟，限制其在室外的应用。本实用新型包括温度采集装置和设置于控制室的温度报警装置，温度采集装置包括覆设于电缆表面测温点的绝缘导热膜，粘附在绝缘导热膜上用于探测电缆温度的温度传感器、处理单元、无线发射模块，温度传感器连接到处理单元，处理单元连接到无线发射模块，温度采集装置采用5V直流电压蓄电池供电；温度报警装置包括无线接收模块、处理单元、报警器、显示屏和输入模块，无线接收模块和输入模块连接到处理单元，处理单元连接到报警器和显示屏，温度报警装置由开关电源供电。本技术方案实时监控电缆温度并提供超温警报，满足室外使用的要求。 ...

Deep collaborative oil-gas boiler integrated denitration system and method

The invention discloses a deep collaborative oil-gas boiler integrated denitration system and method, and the system comprises an ammonia injection grid which is fixedly installed on a heating surface; the primary rectifying device is fixedly mounted in the denitration inlet flue; the denitration reactor is fixedly mounted on the inner wall of the steering smoke chamber; the secondary rectifying device is fixedly mounted in the steering smoke chamber; and the third-stage rectifying device is fixedly mounted in the steering smoke chamber. The method comprises the following steps: mixing flue gas generated by an oil-gas boiler with ammonia gas sprayed by an ammonia spraying grid to generate mixed gas; one part of the mixed gas passes through the first-stage rectifying device, the denitration reactor, the second-stage rectifying device and the third-stage rectifying device and then is discharged, and the other part of the mixed gas enters the urea pyrolyzing furnace through an induced draft ...

Air compression device and fuel cell device comprising same

The invention provides an air compression device which comprises a main compression stage and an auxiliary compression stage, the auxiliary compression stage comprises an auxiliary compressor and a turbo-expansion machine, and the auxiliary compressor and the turbo-expansion machine are connected through a connecting mechanism so that the auxiliary compressor and the turbo-expansion machine can rotate at the same angular speed. The main compression stage comprises a first compressor and a second compressor, and the first compressor and the second compressor are driven by a motor. The invention further provides a fuel cell device comprising the air compression device, the fuel cell device comprises a filter, the air compression device, a humidifier, a dehumidifier and a fuel cell stack, and the filter, the air compression device, the humidifier, the dehumidifier and the fuel cell stack are connected through an air path. Air enters the air compression device through the filter, is accelerated ...

RAILWAY WAGON BRAKE CONTROL SYSTEM AND CONTROL METHOD

A railway wagon brake control system, comprising a train pipe (17) and multiple disc brakes (12), the disc brakes (12) each braking each wheel of a railway wagon; further comprising an ECP control host (7) and a distribution valve (6) communicated with the train pipe (17), the distribution valve (6) being communicated with multiple relay valves (10), the relay valves (10) each corresponding to each bogie of the railway wagon, and each disc brake (12) of the same bogie being communicated with the relay valve (10) corresponding to the bogie; further comprising a control air cylinder (15) and an auxiliary air cylinder (16) which are respectively communicated with the distribution valve (6), each bogie being provided with at least one weighing valve (13), and each weighting valve (13) being communicated with the auxiliary air cylinder (16) and the relay valve (10); and further comprising an ECP pre-control chamber (14), the ECP pre-control chamber (14) being communicated with the train pipe ...

Green low-carbon regenerated coarse-grained roadbed filler and preparation method thereof

The invention discloses a green low-carbon regenerated coarse-grained roadbed filler and a preparation method thereof.The preparation method comprises the following steps that after air-dried muck and a muck modifier are mixed in proportion, crushing and sieving treatment are conducted, and powdery improved muck is obtained; putting the powdery improved muck into a disc granulator, and granulating while spraying water, so as to obtain a regenerated coarse-grain roadbed filler blank; collecting a blank body, and putting the blank body in a combustion tail gas environment containing CO2 gas to enable the blank body to fully react with the CO2 gas; and air-drying to obtain the green low-carbon regenerated coarse-grained roadbed filler. According to the method, waste muck is used as the raw material, the cost is low, muck stacking sites can be reduced, and the natural environment is protected; calcination is not needed in the preparation process, and direct environmental pollution is avoided ...

Engineering field test digital management system and method based on machine vision

The invention discloses an engineering field test digital management system based on machine vision, and belongs to the technical field of construction safety. The engineering field test digital management system based on machine vision comprises a monitoring device and a display device, the monitoring device displays images monitored in real time through the display device, an analysis module is arranged in the display device, and the analysis module analyzes the monitored real-time images. According to the engineering field test digital management system based on machine vision, through arrangement of the monitoring device and the display device, real-time pictures monitored by the monitoring device can be displayed in a centralized manner through the display device, and when an analysis module in the display device analyzes that the pictures are abnormal, an alarm module can be commanded to trigger an alarm, so that the work efficiency is improved. The method and the device are used ...

Parallel arrangement double-motor double-intermediate-shaft four-gear pure electric transmission assembly

The invention provides a four-gear pure electric transmission assembly with double motors and double intermediate shafts arranged in parallel. The four-gear pure electric transmission assembly comprises a first motor, a second motor, a second intermediate shaft, an output shaft and a first intermediate shaft. The rear end of the first motor is sequentially in power connection with a first input shaft, a first primary speed reduction driving gear, a first primary speed reduction driven gear, a first secondary speed reduction shaft, a first secondary speed reduction driving gear and a first secondary speed reduction driven gear; the rear end of the second motor is sequentially connected with a second input shaft, a second first-stage speed reduction driving gear, a second first-stage speed reduction driven gear, a second second-stage speed reduction shaft, a second second-stage speed reduction driving gear and a second second-stage speed reduction driven gear. A first fourth-gear driving ...

Construction method, device and equipment of four-tank process system control model and computer readable medium

The invention discloses a construction method, device and equipment of a four-tank process system control model and a computer readable medium, and belongs to the technical field of automatic control. The method comprises the following steps: modeling a multi-mode four-tank process system into a semi-Markov jump neural network model; establishing a data sampling triggering condition of the neural network model by adopting a self-adaptive triggering protocol; constructing a feedback controller of an aperiodic denial of service attack signal under a data sampling triggering condition, and calculating according to the feedback controller to obtain a closed-loop model of the neural network model; and calculating sufficient conditions for ensuring the index synchronization of the closed-loop model and the controller gain solvability of the feedback controller, and obtaining control parameters of the feedback controller. According to the technical scheme disclosed by the invention, the nonlinear ...

Calculation method and device of carbon emission data, equipment and storage medium

The invention discloses a carbon emission data calculation method, device and equipment and a storage medium, the calculation method is applied to at least two electric devices, and the calculation method comprises the following steps: respectively obtaining real-time power parameters of each electric device, substituting the real-time power parameters into a rectangular coordinate system, respectively calculating and summarizing to obtain a total power consumption index; and calculating a carbon emission index of the total power consumption index according to a preset scale factor. According to the application, the traceability and intuition of the mathematical model are utilized, the total power consumption index and the carbon emission index can be directly obtained from the mathematical model only according to a certain time node or an obtaining node, and the mathematical model can continuously record the operation state of each electric device and form one or more functions; according ...

Plate veneering production device

The invention discloses a board veneering production device, and relates to the technical field of board processing, the board veneering production device comprises a processing support box, the bottom of the inner cavity of the processing support box is in transmission connection with a conveyor belt, and the bottom of the inner cavity of the processing support box is in transmission connection with a board on the upper surface of the conveyor belt; a pressing structure is fixedly installed on the top of an inner cavity of the machining support box and located on the upper surface of the plate, cleaning structures are fixedly installed on the two sides of the inner cavity of the machining support box and located on the upper surface of the plate, the pressing structure comprises a supporting plate and a pressing roller, and the two sides of the supporting plate are fixedly installed on the top of the inner cavity of the machining support box. Under the action of a second driving motor, ...

Optical thin film, preparation method thereof and optical thin film element

The invention provides an optical thin film, a preparation method thereof and an optical thin film element, relates to the technical field of optics, and aims to solve the problem that a coated product does not meet index requirements due to the change of a machine table coefficient so as to improve the performance and the quality of the coated product. The preparation method comprises the following steps: determining the actual design thickness of each thin film layer; determining the plating thickness of each thin film layer; forming an optical thin film on the substrate according to the plating thickness of each thin film layer; the step of determining the actual design thickness of each thin film layer comprises the substeps of determining the initial design thickness of each thin film layer; determining the virtual plating thickness of each thin film layer; forming a virtual optical thin film on the virtual substrate through a software simulation technology to obtain a virtual optical ...

Broadband circularly polarized phased-array antenna unit

A broadband circularly-polarized phased-array antenna unit disclosed by the invention is small in size, simple in structure, wide in frequency band, small in number of winding turns and layers and flexible in arraying. According to the technical scheme, a feed metal disc is fixed to the lower surface of a lower dielectric substrate and fixedly connected with the bottom of a primary feed column, and a coaxial feed port is formed by the feed metal disc and an annular gap etched in a metal floor; an arc bending metal sheet belt is connected to the bottom end of a secondary feed column end to end through the top end of a primary feed column, a second arc metal sheet belt is connected to the bottom end of a tail feed column end to end through the top end of the secondary feed column, and a first arc metal sheet belt is fixedly connected to the top end of the tail feed column; and the rotation radians of the three arc metal sheet belts are sequentially connected end to end according to the same ...

Intelligent flood discharge and drainage device and control system

The invention discloses an intelligent flood discharge and drainage device and a control system. The intelligent flood discharge and drainage device comprises a well lid, a well lid support and the control system. The manhole cover comprises an upper cover and a cover plate, the upper cover is provided with a window, the top of the cover plate is provided with a protruding cap matched with the window, the first end of the cover plate is connected with the upper cover through a horizontal rotating shaft, and the cover plate can rotate upwards or downwards relative to the upper cover with the horizontal rotating shaft as the axis. The well lid support comprises a top structure used for supporting the well lid and a bottom structure used for fixing the driving assembly. The control system comprises a power supply module, a control unit, a monitoring module and a driving module, and the system can realize intelligent opening or closing of the cover plate, timely drain accumulated water and ...

Fabricated clean operating room

The invention relates to an assembly type clean operating room which comprises a plurality of wall body plate units, straight edge connecting plates and corner connecting plates, each wall body plate unit comprises a lining plate, a filling layer and a veneer which are spliced with one another, and the multiple wall body plate units are installed on the top or the side portion of the operating room; a connecting piece for connecting every two adjacent wall body plate units on the same plane is arranged between every two adjacent wall body plate units, the corner connecting plates are installed at the corner positions of the operating room, the straight-edge connecting plates are installed at the edge positions of the operating room, the straight-edge connecting plates close to the corner positions of the operating room are detachably connected to the corner connecting plates, and the straight-edge connecting plates close to the corner positions of the operating room are detachably connected ...

Pyrography device for wooden door production

The invention discloses a wooden door production pyrography device, and relates to the technical field of wooden door production, the wooden door production pyrography device comprises a support box, a rotary fixing structure is fixedly mounted in the middle of the upper surface of the support box, a wooden door is fixedly mounted on the upper surface of the rotary fixing structure, and a supporting frame is fixedly mounted on the top of the back surface of the support box; a lifting structure is fixedly mounted at the top of the supporting frame, a pyrography structure is fixedly mounted at the bottom of the lifting structure, the lifting structure comprises a hydraulic rod and a mounting guide plate, the bottom of the outer wall of the hydraulic rod and the top of the supporting frame are fixedly mounted, and the output end of the hydraulic rod is rotationally connected with a supporting rod. Under the action of the supporting rod and the inclined rod, the mounting guide plate can be ...

PROBE CUP HOLDER FLEXIBLE ARM, PROBE CUP HOLDER, AND DESKTOP ULTRASOUND INSTRUMENT

A probe cup holder flexible arm (6), comprising a base body (2) and an unlocking arm (3). The base body (2) forms a limiting space (24) used for limiting a probe cup holder (1). The unlocking arm (3) is movably arranged at the base body (2) and is provided with an unlocking position and a locking position. The unlocking arm (3) is provided with an engaging tab (31). At the locking position, the engaging tab (31) holds the probe cup holder (1); at the unlocking position, the engaging tab (31) releases the probe cup holder (1). By engagingly fitting the probe cup holder flexible arm (6) with the probe cup holder (1), the unlocking arm (3) implements a switchover between a locked state and an unlocked state. When the probe cup holder flexible arm (6) is applied in a desktop ultrasound instrument, medical workers, regardless of being left-handed or right-handed, can smoothly retrieve and replace a probe.

Combined bearing fault diagnosis method and system

The invention provides a combination bearing fault diagnosis method and system, a combination bearing is installed on a bearing test bench, and the bearing test bench is provided with a controller and a data acquisition element connected with the controller. The data acquisition element comprises a temperature sensor used for acquiring oil film temperature distribution of the combined bearing, a pressure sensor used for acquiring oil film pressure during operation of the combined bearing, a rotating speed sensor used for acquiring the rotating speed of a main shaft, and m acoustic emission sensors used for acquiring acoustic emission signals generated during operation of the combined bearing; the n vibration sensors are used for collecting vibration signals generated during operation of the combined bearing, and the controller is used for receiving and processing the signals collected by the sensors. According to the combined bearing fault diagnosis method, four types of data including ...

Three-dimensional model loading method for multi-level cache of webpage side

The invention relates to the technical field of three-dimensional model loading, in particular to a webpage-end multi-level cache three-dimensional model loading method, which comprises the following steps of: uploading a glb model file for establishing a scene to a model library, selecting a model from the model library, establishing the scene in a dragging form, extracting scene data and storing the scene data, the stored scene data are uploaded to a server; and the browser loads the scene through the multi-level cache. The set glb model is stored in a menu bar in a picture form, so that the loading time can be saved; models are classified, one part of the models are stored in a browser memory, and the other part of the models are stored in a local cache database, so that the loading speed of the three-dimensional models at the webpage end can be effectively improved, the loading time is controlled within 6 seconds during initial loading, and the time is optimized within 3 seconds by ...

Construction method of fabricated underground passage crossing road

The invention discloses a construction method of a fabricated underground passage crossing a road. Comprising the steps of guard pile construction, joist construction, isolation wall construction on the two sides of a channel, soil body reinforcement on the two sides of the channel, channel top reinforcement, soil body reinforcement in a channel excavation area, channel bottom grouting reinforcement, channel excavation and primary support, channel structure installation, grouting sealing and removal of the joist and the guard piles exposed out of the earth surface. According to the method, construction measures such as pre-underpinning, comprehensive pre-reinforcement, segmented and partitioned cross excavation, a comprehensive supporting mode and an assembly type channel structure are adopted, and the influence of undercrossing channel construction on existing road traffic can be avoided. Meanwhile, road settlement can be reduced through underground excavation construction, construction ...

Container underframe structure

... 本实用新型公开了一种集装箱底架结构，包括门槛、前底梁、角件、二根底侧梁、若干底横梁和一对叉槽，所述门槛、前底梁和二根底侧梁通过角件连接成一个矩形框架，若干底横梁和一对叉槽连接在二根底侧梁之间，其特殊之处是：所述底横梁为槽钢形压型件且上、下折边宽度不等，其上折边宽度大于下折边宽度；所述门槛与靠近该门槛的一个底横梁连为一体。有益效果是：能够增大底横梁与集装箱木地板的接触面积，使木地板不易变形损坏，提高木地板的承载力和自身强度；能够增大门槛的强度和耐冲击力，使门槛不易变形损坏，从而提高使用寿命。 ...

Tunnel circulating ventilation system

The invention discloses a tunnel circulating ventilation system. An extraction valve controls connection and disconnection between a confluence path and a main communication path; the air supply valve controls connection and disconnection between the confluence path and the air supply path. The main communication path is communicated to a first machine room through a transverse channel and a first branch path, an air draft fan is arranged in the first machine room, an air supply fan is arranged in the second machine room, and the upper end of the air supply path is communicated with the second machine room; the control unit comprises a sensor, a controller and a communicator; the sensor is located in the tunnel, and the communicator transmits a signal obtained by the sensor to the controller; the controller controls the air draft fan, the air supply fan, the air extraction valve and the air supply valve to work in a wireless communication mode.

Nodular cast iron pipe wall thickness measuring method based on laser ultrasound and parameter optimization VMD

The invention provides a nodular cast iron pipe wall thickness measuring method based on laser ultrasound and parameter optimization VMD, and the method comprises the steps: taking a plurality of nodular cast iron pipes with different thicknesses as samples for testing, and sequentially collecting laser ultrasonic signals at different positions of the nodular cast iron pipes with different thicknesses through a laser ultrasonic system; carrying out noise reduction processing on the collected signals; performing curve fitting on the square of the longitudinal wave arrival time and position to obtain a fitted curve; s3, establishing a simulation model through COMSOL software, fitting the square of the time when the signal longitudinal wave arrives at the light beam of the interferometer and the square of the position of the laser scanning point to obtain the wave velocity of the longitudinal wave and the thickness of the material, and verifying the fitted curve obtained in the step S3; and ...

Vehicle loss condition determination method and device, equipment and storage medium

The invention discloses a vehicle loss condition determination method and device, equipment and a storage medium. Comprising the following steps: constructing an accessory two-dimensional code list, and obtaining a damaged vehicle accessory requested to be queried by a user based on the accessory two-dimensional code list; matching the damaged vehicle accessories through an accessory information base, and obtaining target accessory information corresponding to the damaged vehicle accessories; the loss condition of the vehicle is determined according to the target accessory information, and the target accessory information comprises suppliers and accessory values corresponding to damaged vehicle accessories. The damaged vehicle accessory requested to be inquired by a user is obtained through the constructed accessory two-dimensional code list, the accessory model does not need to be selected according to the vehicle model, the accuracy of loss condition determination is improved, then the ...

Preparation method of perovskite solar cell

The invention discloses a preparation method of a perovskite solar cell, and the method is characterized in that an electron transport layer employs a solution coating method to prepare a thin film, and the solution is a Zn < 2 + >-doped tin dioxide nanometer dispersion liquid. The performance of the electron transport layer can be remarkably improved by performing Zn < 2 + > composite doping on the tin dioxide solution, so that the performance of the perovskite solar cell is improved.

Method and system for producing graphitized product

The invention discloses a method for producing a graphitized product. The method comprises the following steps: S1, obtaining a to-be-treated material; s2, performing first heating treatment on the to-be-treated material in a first temperature range to obtain a first treated material; s3, in a second temperature range, the first treated material is subjected to second heating treatment, a second treated material is obtained, and the second temperature range is higher than the first temperature range; s4, in a third temperature range, the second treated material is subjected to third heating treatment, a third treated material is obtained, and the third temperature range is higher than the second temperature range; and S5, cooling the third treated material to obtain a graphitized product. According to the technical scheme, continuous production of graphitized products can be achieved, the stability of graphite materials in the heating process is enhanced, the production efficiency of the ...

Six-foot climbing car washing robot

The invention discloses a six-legged climbing car washing robot which comprises a bottom shell, up-and-down movement mechanical driving boxes, front-and-back movement driving mechanisms, a transmission mop assembly, an air suction and exhaust mechanism and a surface cover. The transmission mop assembly is installed at the bottom of the bottom shell, and the up-and-down movement mechanical driving boxes are arranged on the inner side of the bottom shell at equal intervals; the six-foot climbing car washing robot is powered on by turning on a power switch, and then the six-foot climbing car washing robot conducts linkage control over an air suction and exhaust mechanism, an up-down movement mechanical driving box, a front-back movement driving mechanism, a transmission mop assembly and a water adding electric control assembly through a control assembly by touching a touch control switch. According to the six-foot climbing vehicle cleaning robot, the six-foot climbing vehicle cleaning robot ...

Optimization design method for TOPCon bottom battery structure

The invention discloses a TOPCon bottom cell structure optimization design method suitable for a perovskite/TOPCon laminated cell. The TOPCon bottom cell structure optimization design method mainly comprises the following three core steps: S1, performing thickness reduction and double-sided texturing on an n-type silicon wafer by using a wet chemical method alkali etching process; s2, promoting the boron diffusion depth to form a p + + heavily doped boron emitter; and S3, a few-main-grid/no-main-grid design process is adopted when the metal electrode is subjected to screen printing. According to the invention, the optimization design of the TOPCon bottom cell structure is beneficial for solving the problems of weak light response and poor long wave band light absorption when the TOPCon cell is used as a perovskite/TOPCon laminated cell bottom cell, and the light absorption and utilization of the TOPCon bottom cell are improved, thereby improving the short-circuit current density and photoelectric ...

Power system image video security access method and device

The invention discloses a power system image video secure access method and device. The method comprises the following steps: receiving power system image video data; encrypting the received image video data of the power system through an encryption module integrated on the mainboard to obtain encrypted data; and the encrypted data is sent to remote equipment through the 4G/5G communication module integrated on the mainboard, so that data interaction with the remote equipment is realized. According to the invention, the security and timeliness of image and video data transmission of the power system are improved.

System for realizing comprehensive treatment of water quality of water plant based on dynamic inflow

The invention relates to the technical field of water plant water treatment, in particular to a water plant water quality comprehensive treatment system based on inflow dynamics, which comprises an oil separation and residue filtration unit, the water inlet end of the oil separation and residue filtration unit is connected with a wastewater source end, and the downstream of the oil separation and residue filtration unit is connected with a comprehensive regulation unit. The comprehensive regulation unit is used for realizing chemical adding regulation on the wastewater treated by the oil separation and residue filtration unit, the downstream of the comprehensive regulation unit is connected with a sedimentation tank, and the downstream of the sedimentation tank is connected with a multi-stage water quality membrane filtration purification unit; the downstream of the multi-stage water quality membrane filtration purification unit is respectively connected with an industrial water end and ...

Oxygen-free copper rod processing system

The invention relates to the technical field of oxygen-free copper rod machining, and discloses an oxygen-free copper rod machining system which comprises a melting furnace, a heat preservation furnace, a continuous casting machine, a slitting roller, a continuous rolling mill and a winding machine. The continuous casting machine is used for receiving the copper liquid conveyed by the holding furnace and casting the copper liquid into a copper ingot; the slitting roller is used for shearing and shaping the copper ingot; the continuous mill is used for receiving the copper ingot conveyed by the slitting roller and rolling the copper ingot into a copper rod; the winding machine is used for receiving the copper rods conveyed by the continuous mill and winding the copper rods into bundles; wherein the melting furnace, the holding furnace and the continuous casting machine are connected through a sealing launder, the continuous casting machine, the slitting roller and the continuous rolling ...

5G base station and power grid cooperative scheduling method based on master-slave game

The invention provides a 5G base station and power grid cooperative scheduling method based on a master-slave game. The method comprises the steps of 1, determining power consumption of a 5G base station; step 2, constructing a double-layer optimization model for cooperative scheduling of the power grid and the 5G base station, wherein the double-layer optimization model comprises an upper-layer optimization model for the power grid to realize peak load shifting by optimizing time-of-use electricity price and a lower-layer optimization model for the 5G base station operator to realize cost reduction and benefit increase by managing and optimizing energy; 3, a power grid-5G base station operator master-slave game model is constructed, a power grid in the model has the first decision right, the strategy of a 5G base station operator is optimized and adjusted based on the strategy of the power grid, and the strategy of the power grid is influenced by the strategy of the 5G base station operator ...

Bacillus siamensis capable of simultaneously producing lipopeptide and protein antibacterial substances and application of bacillus siamensis

The invention discloses a biocontrol bacterium JS3-4 capable of simultaneously producing lipopeptide and protein antibacterial substances and application of the biocontrol bacterium JS3-4 in prevention and control of plant diseases, and belongs to the technical field of biological prevention and control of plant diseases. According to the invention, a strain JS3-4 with a broad-spectrum antibacterial function is screened from saline-alkali soil in Galian County, and is preliminarily identified as bacillus siamensis. The strain is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC25050. The strain has strong saline-alkali tolerance, can normally grow under the conditions of 9.0% NaCl and pH 9, and can survive under the condition of 9.5% NaCl. The bacillus siamensis JS3-4 disclosed by the invention has a broad-spectrum antibacterial function, has a remarkable antagonistic effect on pathogenic bacteria such as fusarium solani ...

Medical endoscope camera and medical endoscope camera system

The medical endoscope camera comprises an optical lens group 14, a lens base 1, a sensor plate 2, an image signal processing plate 6 and a shell 13, the optical lens group 14, the lens base 1, the sensor plate 2 and the image signal processing plate 6 are all arranged in the shell 13; the optical lens group 14 is arranged in the endoscope base 1 and is used for acquiring image light transmitted by the endoscope; an image sensor is arranged on the sensor plate 2 and is used for acquiring an optical signal and converting the optical signal into an electric signal; the image signal processing board 6 is provided with an image signal processing chip 7, and the image signal processing chip 7 is used for processing the electric signal to obtain an image signal; the sensor plate 5 is arranged on the mirror base 1; the medical endoscope camera further comprises a board card support 5, the image signal processing board 6 is arranged on the board card support 5, and one end of the board card support ...

Function calling method and device for non-native page component, equipment and storage medium

The invention provides a function calling method and device for a non-native page component, equipment and a storage medium, and relates to the technical field of computers. The method comprises the steps that when the non-native page component needs to call a specific native spread function provided by a host program of the non-native page component, the specific native spread function is called; a function call request initiated by a non-native page component through a function call interface set corresponding to the non-native page component is received, and the function call interface set is generated according to a function call demand of the non-native page component and is a subset of a native spread function set provided by a host program. And according to the permission information of the non-native page component, performing legality verification on a target native extension function which is carried by the function call request and needs to be called, and when the target native ...

Endoscope camera and endoscope camera system

The invention discloses an endoscope camera and an endoscope camera system, and the endoscope camera comprises a lens cone, a fixed lens group fixedly disposed in the lens cone, a movable lens seat disposed in the lens cone, a movable lens group fixedly disposed on the movable lens seat, and a driving module used for driving the movable lens seat to move axially. A guide structure used for guiding the moving lens base to move axially is arranged in the lens cone or between the lens cone and the moving lens base, and an anti-deflection structure used for preventing the moving lens base from rotating axially is further arranged between the lens cone and the moving lens base. By utilizing the mutual cooperation of the guide structure and the anti-deflection structure, on one hand, a structural connection relation and a relative movement relation are directly established between the movable lens base and the lens barrel, the configuration number of associated parts can be reduced, and the length ...

Smoke dust treatment system

The smoke dust treatment system comprises a main communication path, a branch communication path, a transverse channel, a first branch path, a second branch path, a machine room, a first treatment unit, a second treatment unit and a third treatment unit, the branch communication paths are communicated to the interior of the tunnel and are gathered to the main communication path, and the main communication path and the first branch path are communicated to the interior of the machine room through a transverse channel; the draught fan is located in a machine room, a first processing unit is arranged on the upstream of the draught fan, a three-way valve is arranged on a downstream pipeline of the draught fan, and the three-way valve can enable the downstream pipeline to be communicated with a second processing unit or a third processing unit through rotating switching. The second treatment unit comprises a spraying room for treating smoke dust, and the third treatment unit comprises a filter ...

Rolling bearing multi-dimensional parameter automatic detection line and rolling bearing grade evaluation method

The invention provides a rolling bearing multi-dimensional parameter automatic detection line and a rolling bearing grade evaluation method, and the detection line comprises a control system, a conveyor belt device connected with the control system, and a mechanical arm device disposed on the outer side of the conveyor belt device. And a rolling bearing rigidity test module, a rolling bearing radial clearance test module and a rolling bearing vibration characteristic test module are arranged along the length direction of the conveyor belt device. By arranging the conveying belt device and the mechanical arm device, parameters such as the radial and axial supporting rigidity, the radial clearance and the vibration characteristic of the rolling bearing can be automatically detected. In actual production work, the bearing performance index detection device can replace part of bearing performance index detection devices with a single function, and production enterprises can reduce or do not ...

Pressure balance pressure test tool for sealing end face of workpiece

The invention discloses a pressure balance pressure test tool for sealing the end face of a workpiece, which comprises a cylinder barrel, a piston is slidably arranged in the cylinder barrel, the piston can abut against a pressure test interface of a pressure test workpiece so as to press and seal the pressure test interface, and a balance cavity is formed between the piston and the inner wall of the cylinder barrel. The cylinder barrel is provided with a first injection pressure channel communicated with the balance cavity, and the piston is provided with a second injection pressure channel which enables the balance cavity to be communicated with the interior of the pressure test workpiece. The contact area of the piston in the direction perpendicular to the axis and the pressure medium located in the balance cavity is larger than the contact area of the piston in the direction perpendicular to the axis and the pressure medium at the pressure test connector. The internal pressure of the ...

Gas leakage prevention detection sensor for lithium battery

The gas leakage prevention detection sensor comprises a conveying belt, a preheating bin is arranged on one side of the top of the conveying belt, a heating bin is arranged on one side of the preheating bin, a cooling bin is arranged on one side of the heating bin, and a heat radiation plate is arranged in the heating bin. A plurality of groups of electric heating wires are uniformly arranged at the top of the heat radiation plate; through cooperation of the heat storage pipe and the partition plate, hot air generated in the glass heating process can be stored, heat in the heating bin can be isolated to the bottom through the partition plate, the situation that the stability of the temperature in the heating bin is affected due to rapid heat dissipation is prevented, and then through cooperation of the electric heating wire, the heat radiation plate, the draught fan, the through pipe and the connecting cover, the heating efficiency is improved. According to the glass heating device, outside ...

Data analysis method based on low-code API

The invention discloses a data analysis method based on a low-code API (Application Program Interface). The method comprises the following steps: step 1, designing a business data analysis process and carrying out process deployment; step 2, an API generator generates an API; step 3, realizing process calling by calling an API (Application Program Interface); and step 4, the customized executor executes the business. Real-time acquisition of data is completed in an API calling mode, and data support and packaging processing can be provided for system services.

Synthesis method of aluminum fluoride doped graded porous carbon nanofiber for electro-catalysis

The invention relates to a synthesis method of aluminum fluoride doped graded porous carbon nanofibers for electro-catalysis, and belongs to the technical field of electrode materials. The preparation method comprises the following steps: (1) preparing aluminum sol; (2) preparing a spinning solution; (3) preparing nascent fibers by using an electrostatic dissolving and blowing technology; (4) carrying out pre-oxidation treatment on the nascent fiber to obtain a pre-oxidized precursor nanofiber; and (5) carrying out a carbonization process on the pre-oxidized precursor nanofiber to obtain the aluminum fluoride doped graded porous carbon nanofiber. The invention provides a new strategy for simply and conveniently forming a hierarchical porous structure, and the prepared aluminum fluoride doped hierarchical porous carbon nanofiber has an ultrahigh specific surface area due to the construction of the hierarchical porous structure, so that in-situ grown aluminum fluoride active sites can be ...

Bedding and clothing data monitoring method of bedding and clothing logistics station and related device

The invention relates to the field of data processing, and discloses a bedding and clothing data monitoring method of a bedding and clothing logistics station and a related device, which are used for improving the accuracy of bedding and clothing data monitoring. The method comprises the following steps: carrying out electronic tag identification and monitoring on bedding and clothing materials in a bedding and clothing logistics station to obtain first bedding and clothing data; performing bedding and clothing data category identification on the first bedding and clothing data to obtain a bedding and clothing data category set, and obtaining corresponding second bedding and clothing data according to the bedding and clothing data category set; respectively constructing probability density data models based on the probability density distribution function; according to a probability density data model, calculating at least one abnormal characteristic value of each piece of second bedding ...

Endoscope camera housing, endoscope camera, and endoscope imaging system

The invention discloses a shell of an endoscope camera, the endoscope camera and an endoscope camera system. The shell comprises an aluminum-based base material, and an organic silicon resin layer is formed on the aluminum-based base material; wherein the organic silicon resin layer contains a silicon-oxygen bond, and the organic silicon resin layer contains a pigment. The shell of the endoscope camera at least has the following beneficial effects that the organic silicon resin layer contains pigment to display a preset color, the organic silicon resin layer is low in surface tension, has a hydrophobic effect and can prevent fingerprints or dirt residues, meanwhile, the organic silicon resin layer contains a silicon-oxygen bond, the bond energy of the silicon-oxygen bond is 452 kj/mol, and the organic silicon resin layer can be used for displaying the preset color. The overall chemical resistance, temperature resistance and weather resistance of the coating can be effectively improved, ...

Coiled material feeder for air conditioner steel coil treatment process

A coiled material feeder for an air conditioner steel coil treatment process comprises a coiled material supporting frame and a coiled material supporting shaft arranged on the upper portion of the coiled material supporting frame, the coiled material supporting shaft is horizontally arranged at the front end of the coiled material supporting frame forwards, and a coiled material supporting arm and a coiled material pressing arm are arranged on the left side of the coiled material supporting shaft. The coiled material pressing arm is arranged above the coiled material supporting arm, a coiled material lifting mechanism is arranged in front of the coiled material supporting shaft, and the coiled material lifting mechanism comprises a supporting base, a supporting platform arranged at the top of the supporting base and conveying rollers arranged at the bottom of the supporting base; a coiled material conveying driving device for driving the supporting platform to move up and down and front ...

High-sensitivity single-molecule microscopic imaging method and system

The invention provides a high-sensitivity single molecule microscopic imaging method and a high-sensitivity single molecule microscopic imaging system, and aims to solve the problem of low detection sensitivity of single molecules such as protein in the prior art. A high-sensitivity single-molecule microscopic imaging method comprises the following steps: after incident light passes through an imaging chip supporting long-propagation-distance plane surface plasmons, in-plane scattering of a sample to the surface plasmons occurs, and the in-plane scattering light is reversely coupled through the imaging chip and is emitted out of the plane, the image sensor acquires an original interference image formed by emergent scattered light and reflected light in the plane; sample scattered light is integrated into sample signal bright spots, and a point-shaped distribution diagram with the signal bright spots is obtained. According to the invention, through the imaging chip supporting long-propagation-distance ...

Communication system and method of AGV trolley in factory based on wireless network switch

The embodiment of the invention provides a system and method for an AGV trolley in a factory based on a wireless network switch, and the system comprises an AGV control system module which is used for determining the operation path of the AGV trolley; the path sensing module is used for detecting environment information and correcting a path; the obstacle sensing module is used for detecting whether an obstacle exists in the AGV trolley or not, and controlling the AGV trolley to adjust the direction to bypass the obstacle when the obstacle exists; the communication network connection module is used for determining a working interval where the AGV trolley is located according to the position information of the AGV trolley and determining a base station server connected with the AGV trolley; and the base station adjusting module is used for detecting whether the A signal strength fluctuates when the AGV trolley adjusts the direction to bypass the obstacle, and obtaining the connection of ...

Slope surface closure and drainage structure suitable for pluvial area and construction method of slope surface closure and drainage structure

The invention discloses a slope surface closure drainage structure suitable for a pluvial area and a construction method thereof. The structure comprises a slope, the slope top of the slope is provided with a closure ditch, the slope bottom of the slope is provided with a drainage ditch, and the side face of the slope is provided with a drainage side ditch; a plurality of main water guide pipe grooves communicated with the intercepting ditch and the drainage ditch and a plurality of secondary water guide pipe grooves communicated with the adjacent main water guide pipe grooves are formed in the slope surface of the side slope, the main water guide pipe grooves are parallel to one another, and drainage holes are formed between the adjacent secondary water guide pipe grooves; a main water guide pipe is laid in the main water guide pipe groove, a secondary water guide pipe communicated with the main water guide pipe is laid in the secondary water guide pipe groove, and gabion mesh bagged particle ...

Tunnel wind control unit

According to the tunnel air control unit, a plug is arranged at the upper end of a main communication path, a transverse channel is arranged on the side of the main communication path, and the downstream of the transverse channel is branched into a first branch path inclining upwards and a second branch path inclining downwards; the valve is used for controlling the on-off of the first branch path and is connected with the connecting pipe so as to lead fluid in the first branch path out of the first branch path; a first baffle and a second baffle are hung on the upper portion of the inner wall of the second branch. The collecting cavity is formed in the downstream of the second branch, an opening is formed in the upper portion of the collecting cavity, and the collecting barrel is arranged in the collecting cavity; and the collecting barrel can be taken out from the collecting cavity.

Laser ultrasonic additive workpiece circular hole defect detection method based on multi-mode frequency domain synthetic aperture

The invention discloses a multi-modal frequency domain synthetic aperture-based laser ultrasonic additive workpiece circular hole defect detection method, which comprises the following steps of: focusing light spots of a laser and an interferometer on the same point, and performing line scanning on the other side of an additive workpiece with surface circular hole defects; performing parameter optimization VMD noise reduction on the collected whole scanning line signal; and respectively carrying out frequency domain synthetic aperture imaging according to the directivity of the longitudinal wave and the transverse wave, and carrying out image superposition so as to judge the position and the size of the defect. Compared with the prior art, the method is beneficial to overcoming the problem of low signal-to-noise ratio caused by rough surface of the additive part, is beneficial to realizing position and size detection of surface defects of the additive part, and can provide reference for ...

Storage production line is carried to container part

... 一种集装箱部件输送存储生产线，它有一个由若干台链条输送机构成的输送生产线，在输送生产线的前端有龙门吊车，其特殊之处是，在输送生产线的前端有一台存放多余部件的缓冲区链条输送机，在输送生产线与缓冲区链条输送机之间有前端移料装置；本实用新型的优点在于，在输送生产线的前端设置一台存放多余部件的缓冲区链条输送机，并在输送生产线与缓冲区链条输送机之间设置前端移料装置，利用前端移料装置将输送生产线上多余的部件存放在缓冲区链条输送机上，避免了集装箱部件频繁吊运，无需人工干预，减少了人工操作，并实现了自动化吊运，提高了生产效率及企业的经济效益。 ...

Edge trimmer for wooden door production

The invention discloses an edge trimmer for wooden door production, and relates to the technical field of wooden door production, the edge trimmer comprises a supporting frame box, an edge trimming structure is fixedly mounted in the middle of an inner cavity of the supporting frame box, and transmission structures are fixedly mounted in the inner cavity of the supporting frame box and located on the two sides of the edge trimming structure; a wooden door is in transmission connection with the position, located in an inner cavity of the supporting frame box, of the middle of the transmission structure, the transmission structure comprises a first driving motor, a first guide roller and a second driving motor, the left side of the first driving motor and the right side of the supporting frame box are fixedly installed, and the two ends of the first guide roller are rotationally connected with the two sides of the inner wall of the supporting frame box. The height of the guide roller support ...

Synthesis method of perovskite microcrystal powder

The invention discloses a synthesis method of perovskite microcrystal powder, which comprises the following steps: (1) adding a certain amount of inorganic lead source into an acetic acid aqueous solution with a certain concentration, controlling the temperature and stirring to form a clear and transparent solution; (2) weighing excessive monovalent cation acetate, adding the monovalent cation acetate into the clear and transparent solution obtained in the step A, and rapidly stirring until the solution becomes clear and transparent again; (3) keeping the same reaction temperature as that in the step (1), dropwise introducing halogen elements into the clear and transparent solution obtained in the step (2) at a constant speed, and then adding an acidity regulator to regulate the pH lt of the mixed solution; 2, rapidly stirring until a large amount of precipitate is generated; and (4) adding an organic washing solvent into the precipitate obtained in the step (3), washing the precipitate ...

Logistics management method, device and equipment of box-type logistics system and storage medium

The invention relates to the field of logistics management, and discloses a logistics management method, device and equipment of a box-type logistics system and a storage medium, which are used for realizing intelligent management of box-type logistics and improving the efficiency of logistics management. The method comprises the following steps: respectively carrying out data cleaning, data integration and logistics feature extraction on first container data and first cargo data to obtain target container data and target cargo data; inputting the target container data into a first logistics decision model for logistics decision analysis to obtain a first logistics decision result; inputting the target cargo data into a preset second logistics decision model for logistics decision analysis to obtain a second logistics decision result; and executing the first logistics decision result and the second logistics decision result through the box-type logistics system, and carrying out logistics ...

Economical and environment-friendly perovskite thin film preparation method

The invention discloses an economical and environment-friendly perovskite thin film preparation method, the preparation process is simple, expensive and complex equipment is not needed, the thin film quality and the thin film uniformity are good, and a perovskite solar cell based on the method is high in photoelectric conversion efficiency. Waste of raw materials and organic solvents is very little, all solvents can be repeatedly used, and maximum utilization of the materials is achieved; the whole process causes little environmental pollution and is low in energy consumption, the high-quality perovskite thin film can be prepared economically and environmentally, and the method plays a great role in efficiency improvement and industrial popularization of the perovskite solar cell.

Privacy policy processing method, client, device, medium and program product

The invention provides a privacy policy processing method, a client, equipment, a medium and a program product, and relates to the technical field of security. The method comprises the following steps: by judging whether login is first login, whether a first privacy policy corresponding to an identifier of a user is agreed by the user and whether a serial number of the first privacy policy corresponding to the identifier of the user is consistent with a serial number of a second privacy policy, displaying related privacy policies on a client interface through an H5 page, and when monitoring that the displayed second privacy policy is agreed by the user, storing the identifier of the user and the number of the second privacy policy, and performing corresponding login processing. Compared with the prior art that the local privacy policy is displayed at the client or the privacy policy file is downloaded from the server and displayed, the method is based on the H5 page, the privacy policy ...

Fiber multifilament sample winding device and fiber multifilament sample preparation method

The invention relates to a fiber multifilament sample winding device and a fiber multifilament sample preparation method.The fiber multifilament sample winding device comprises a winding machine, a gum dipping assembly and numerical control equipment, the winding machine comprises a winding frame and a first driving mechanism, and an output shaft of the first driving mechanism is connected with the winding frame; the gum dipping assembly comprises a fixing frame and a gum dipping tank, the fixing frame is arranged on one side of the winding machine and is parallel to the winding machine, the gum dipping tank is movably arranged on the fixing frame, the moving direction of the gum dipping tank is parallel to the axial direction of the winding frame, and a heating piece is installed on the gum dipping tank; the numerical control equipment is electrically connected with the first driving mechanism and the heating piece and used for controlling the first driving mechanism to work so as to control ...

Monitoring and auditing system based on netlink

The invention discloses a netlink-based monitoring auditing system, which comprises an auditing center and an auditing terminal, and is characterized in that the auditing center is used for distributing auditing rules and receiving and processing auditing logs output by the auditing terminal; the auditing terminal is used for generating and outputting an auditing log based on netlink full-duplex communication according to an auditing rule; wherein the auditing rule is used for customizing a monitoring object; the netlink full-duplex communication is used for capturing an event initiator and realizing operation traceability. According to the method, monitoring objects can be flexibly selected, an initiator of an event can be captured, operation traceability is achieved, meanwhile, follow-up development can meet the multi-scene requirement, and adaptation is simple.

Container headpin structure

... 本实用新型公开了一种集装箱前角柱结构，该前角柱为一钢板压型件，其主体为不等边角铁状，在其主体两侧分别设有用于搭接集装箱前墙板和侧墙板的L型翻边，其特殊之处是：所述L型翻边中与所述主体连接的窄边上端与主体上端平齐，至少一个L型翻边中与所述窄边连接的宽边上端长于窄边上端，宽边长出的部分形成填隙部，用于填补前角柱上端与前顶梁或侧顶梁之间的间隙。有益效果是：由于L型翻边的宽边上端长于所述窄边上端，宽边长出的部分形成填隙部，因此焊接时能够自动填补前角柱上端与前顶梁或侧顶梁之间的间隙，无需再补充填隙片填补焊接，能够提高生产效率，降低生产成本和劳动强度，改善产品质量。 ...

Construction steel pipe paint brushing device and using method thereof

The invention discloses a construction steel pipe paint painting device and a using method thereof.The device comprises a painting execution unit used for making direct contact with a steel pipe and painting the surface of the steel pipe, and the painting execution unit is arranged above a second bearing table; the painting execution unit comprises a paint container used for providing painting paint, a roller cavity formed in one side of the paint container, and rollers rotationally connected with an upper supporting table and a lower supporting table through rotating shafts, wherein the upper supporting table and the lower supporting table are fixedly connected to the upper face and the lower face of the paint container. The detachable hinging assembly and the angle fixing assembly are used for rotationally connecting the upper supporting tables on the left side and the right side through connecting rods; one side of the paint container is rotationally connected through the detachable ...

Signature method, device, equipment and medium

The invention relates to the technical field of network security, in particular to a signature method and device, equipment and a medium. According to the embodiment of the invention, on the basis of obtaining the first character string corresponding to the request data, the first character string is divided into the first preset number of first sub-character strings, and then each first character string is shifted according to the offset corresponding to each first sub-character string; finally, each character string obtained after shifting is spliced to obtain a signature character string, the complexity of a corresponding signature algorithm is higher, and even if a violation person with reverse experience tampers the request data, how to sign the tampered request data based on the signature algorithm provided by the invention cannot be thought, so that the signature efficiency is improved. In addition, the server can accurately verify whether the request data is tampered or not based ...

Wood door production polishing device

The invention discloses a wooden door production polishing device, and relates to the technical field of wooden door processing, the wooden door production polishing device comprises a processing support box, a polishing structure is fixedly mounted in the middle of an inner cavity of the processing support box, and transmission structures are fixedly mounted on the two sides of the inner cavity of the processing support box and located on one side of the polishing structure; the middle of the transmission structure is in transmission connection with a wooden door, and the polishing structure comprises a first driving motor, a supporting plate and a second driving motor. The two ends of a first transmission roller are supported through the effect of a supporting sleeve, so that the first transmission roller is always at the fixed height, a threaded sleeve is driven to move up and down through the effect of a threaded shaft rod, the height of a second transmission roller is controlled, wooden ...

Construction period design flood calculation method considering upstream reservoir regulation and storage influence

The invention relates to the technical field of water conservancy and hydropower engineering, and discloses a construction period design flood calculation method considering the influence of upstream reservoir regulation and storage, so that the calculation of the construction design flood accords with the actual situation and is more scientific and reasonable. The method comprises the following steps: acquiring a long-series daily flow series of reservoirs and a long-series daily flow series of reservoirs from a dam site to a proposed project interval; fitting the maximum daily flow series frequency curves of the storage and interval construction periods by adopting P-III edge distribution, and constructing the maximum daily flow series joint distribution of the storage and interval construction periods by utilizing a GH-Copula function; on the basis of probability combination of upstream reservoir delivery and interval daily flow series in the construction period, a frequency curve of ...

Container section bar preliminary treatment row system of spouting

... 本实用新型公开了种集装箱型材预处理排喷系统，包括喷漆室，型材传送辊道贯穿喷漆室，在喷漆室侧设有液压喷漆泵、油漆桶和液压工作站，液压工作站与液压喷漆泵连接，液压喷漆泵的入口连接进油管并插入到油漆桶内，在喷漆室内设有二根支撑梁，在每根支撑梁上分别设有多个喷枪，每个喷枪分别通过油管与液压喷漆泵的出油口连接；在喷漆室内位于二根支撑梁的下方设有回收槽，回收槽底部连接有隔膜泵，隔膜泵出口连接回收桶。有益效果是：能够避免油漆浪费和污染环境，喷漆效果好，节油环保。通过回收槽能够将喷漆后滴落的富锌漆收集并通过隔膜泵排出到回收桶内回收利用，进步提高了油漆利用率，避免了油漆浪费，降低了喷漆成本。 ...

Oversized suspended ceiling modeling mounting structure

The invention relates to the technical field of oversized suspended ceiling structures, in particular to an oversized suspended ceiling modeling mounting structure which is characterized in that preassembled hanging pieces are mounted on a backfield, the time for mounting side hanging brackets and decorative hanging brackets can be greatly saved, the two ends of each group of side hanging brackets and decorative hanging brackets are fixed, the use of bolt fasteners is reduced, and the production cost is reduced. A plurality of groups of uniformly arranged preassembled hanging pieces are matched with hanging insertion pieces, so that the top hanging stress of the side hanging bracket and the decorative hanging bracket is uniform, the borne pressure is dispersed in a large area, the deformation condition of a main structure is reduced, and the mounting stability of the large suspended ceiling is improved; comprising a roof, a steel framework, a hanging mechanism and a modeling installation ...

Plate-and-frame filter press

The invention belongs to the field of sewage plate pressure treatment, and particularly relates to a plate-and-frame filter press which comprises a supporting frame, an extruding plate, a filtering frame, a sludge frame and a pushing plate, a servo motor is fixedly connected to the outer surface of the supporting frame through bolts, and a supporting rod is fixedly connected to the output end of the servo motor through bolts. A fixing rod is fixedly connected to the surface of the supporting frame through bolts, an extrusion plate is in threaded connection with the outer surface of the supporting rod, a filtering frame is arranged on the outer surface of the fixing rod, a sludge frame is arranged on the outer surface of the fixing rod, a supporting shaft is fixedly connected to the surface of the supporting frame through bolts, and a rotating frame is arranged on the outer surface of the supporting shaft. A first spring is fixedly connected to the interior of the rotating frame through ...

Encoder instantaneous angular velocity estimation method and system based on multi-frequency modulation scale splitting and reconstruction

The invention provides an encoder instantaneous angular velocity estimation method and system based on multi-frequency modulation scale splitting and reconstruction, and the method comprises the steps: carrying out the component analysis and modeling of an encoder signal, obtaining an encoder pulse signal under multi-scale modulation, and carrying out the fast Fourier transform, thereby obtaining a pulse signal frequency spectrum; secondly, performing multi-scale frequency domain filtering splitting on the frequency spectrum of the pulse signal to obtain analytic signals under different modulation scales; then carrying out frequency domain underclocking on the multi-scale modulation analysis signal component and carrying out sensitivity evaluation on the modulation characteristic component; performing weighted reconstruction on frequency domain multi-scale modulation analysis signal components to obtain an analysis signal frequency spectrum, and performing time domain conversion on the ...

Magnetic resonance angiography method and system and electronic equipment

The invention discloses a magnetic resonance angiography method and system and electronic equipment, and relates to the technical field of magnetic resonance imaging. According to the invention, a novel MRA sequence (3DmDixon-MRA) sequence is generated by fusing a 3D acquisition mode (formed by two-dimensional radial acquisition and one-dimensional Cartesian acquisition), an improved dual-echo fat-water separation technology and a compressed sensing technology into a T1-FFE sequence, and the sequence acquisition mode can form a magnetic resonance blood vessel image of a neck artery to be imaged. Therefore, the quality of the magnetic resonance blood vessel image is improved and the scanning time is shortened.

A ramp gate manual retracting mechanism

... 本发明公开了种舷梯门手动收放机构，包括上扶手组件、支撑杆、三角片、活动耳片、下扶手组件和折叠装置；上扶手组件与三角片通过轴线铰接，三角片与活动耳片通过轴线二铰接，活动耳片与支撑杆通过轴线四铰接，所述支撑杆与下扶手组件通过轴线三铰接，所述下扶手组件与三角片通过轴线五铰接；支撑杆与舷梯门铰接；折叠装置分别与门框、支撑杆和舷梯门连接。本发明的有益效果是：结构简单，操作方便，制造成本低，且可靠性高；手动收放，不需要机上动力源，减少对载机的使用要求；折叠起来后，占用空间小；为乘客上下舷梯提供扶手，保障了乘客的安全。 ...

Application system login method and device, computer equipment and storage medium

The invention relates to an application system login method and device, computer equipment and a storage medium. The method comprises the following steps: extracting application system information in a desktop image of an operating system; if it is determined that an operation object has a login intention according to the application system information, obtaining system environment variable information of the operation system; querying login credential information according to the system environment variable information and the application system information; and logging in the application system corresponding to the application system information according to the login credential information. By adopting the method, the convenience when the operation object logs in the application system can be improved.

Intelligent monitoring method for aerosol suspended matters in occupational workplace

The invention relates to the technical field of physical and chemical analysis, and provides an intelligent monitoring method for aerosol suspended matters in occupational workplaces, which comprises the following steps: acquiring acquisition data of sampling points, a plurality of acquisition matrixes and dust concentration, acquiring a dust source offset degree and a concentration factor interval, and thus obtaining place domain similarity; obtaining a Markov transfer matrix according to the place domain similarity and clustering the Markov transfer matrix to obtain a decision correction ratio of each class; randomly extracting a sample set to construct decision-making trees, dividing collected data into data of a plurality of dimensions, and obtaining a concentration information gain of each dimension of each decision-making tree; obtaining an initial prediction value of the decision tree, and correcting the initial prediction value to obtain a dust concentration prediction value; and ...

Application of fluridone and dehydration method of corn kernels

According to the new application of the fluridone, the fluridone is used as a corn dehydrating agent, the dehydration of corn kernels in the later period can be effectively accelerated, and the requirements of corn industrialization development are met by reducing the water content of the corn kernels during harvesting, realizing mechanical kernel harvesting and accelerating the popularization of a whole-process mechanical technology of corn.

Quantum entanglement source distribution device and quantum key distribution system

The invention discloses a quantum entanglement source distribution device, which comprises a pumping assembly configured to generate a pumping pulse, the pumping pulse carries first sequence information through phase information, the pumping pulse comprises a phase randomized laser pulse, and the phase randomized laser pulse does not carry effective information; and the waveguide assembly is coupled with the pumping assembly and is configured to receive the pumping pulse and generate photon pairs in a time-entangled quantum state. According to the quantum entanglement source distribution device provided by the invention, unauthorized users cannot obtain quantum keys by using entanglement photon pairs, quantum key distribution irrelevant to equipment is realized, and memory attacks can be resisted at extremely low cost; compared with the prior art, the structure transformation can be realized by adding some existing equipment on the basis of the conventional entanglement source, and compared ...

Pole piece rejecting mechanism and pole piece rejecting equipment

The invention provides a pole piece waste rejecting mechanism and pole piece waste rejecting equipment, and relates to the technical field of battery manufacturing, the pole piece waste rejecting mechanism comprises a detection assembly, a waste rejecting rack, a first feeding roller set, a second feeding roller set, a guide plate assembly and a waste box, the guide plate assembly is movably arranged on the waste rejecting rack, the guide plate assembly is arranged on the waste rejecting rack and located between the first feeding roller set and the second feeding roller set, the waste box is arranged at the bottom of the waste rejecting rack and located below the guide plate assembly, and the guide plate assembly can rotate or move relative to the waste rejecting rack and is used for guiding and conveying bad products of the pole pieces to the waste box and guiding and conveying good products of the pole pieces to the second feeding roller set. Compared with the prior art, the guide plate ...

Glue spraying device for multilayer board

The invention discloses a multilayer board glue spraying device, and relates to the technical field of multilayer boards, the multilayer board glue spraying device comprises a support frame, a glue box is fixedly mounted in the middle of the lower surface of the support frame, a pump body is fixedly mounted on the front surface of the glue box, and a glue guide pipe is fixedly mounted on the top of the pump body; glue spraying pipes are fixedly installed between the glue guiding pipes and located on the front side and the rear side of the inner wall of the supporting frame, a fixing structure is in lap joint with the bottom of an inner cavity of the supporting frame, a pressing structure is fixedly installed at the top of the inner wall of the supporting frame, and a fixing structure is fixedly installed at the bottom of the inner wall of the supporting frame and located on the upper surface of the multi-layer plate. Through the action of a triangular belt and a flywheel, the multiple threaded ...

Hollow blade preparation device and hollow blade preparation method

The invention provides a hollow blade preparation device and a hollow blade preparation method, and relates to the technical field of casting molding.A floating stopper is placed in a pouring cup, a molding cavity is sealed through the floating stopper before pouring, and melt cannot directly enter the molding cavity under the action of the floating stopper during pouring; after a certain molten pool is formed, the molten pool enters a forming cavity from a side pouring gate, after the liquid level reaches the position of the floatable stopper, the floatable stopper floats upwards under the action of the buoyancy of the melt, and the melt at the top can feed a thick tenon, so that direct scouring of the melt to a ceramic core in the pouring process of the large-size directional solidification blade is avoided, and the casting quality of the large-size directional solidification blade is improved. Meanwhile, the problem that a thick and large tenon is fed by a top melt with enough volume ...

Hybrid precoding method and device, base station equipment and medium

The embodiment of the invention relates to the technical field of communication, and discloses a hybrid precoding method and device, base station equipment and a computer readable storage medium, the method can be applied to a large-scale multi-input multi-output system, and the method comprises the following steps: taking equivalent channel gain maximization as a target, dividing a channel matrix into a plurality of columns, adopting a column-by-column optimization algorithm to obtain an analog pre-code; based on the analog precoding, solving a digital precoding through a water injection algorithm; and obtaining hybrid precoding based on the analog precoding and the digital precoding. According to the embodiment of the invention, the algorithm complexity is reduced, and the frequency spectrum of the system is remarkably improved.