Crack monitoring system of photovoltaic cell panel with TOPCon structure

The invention relates to the technical field of photovoltaic system monitoring, in particular to a crack monitoring system of a TOPCon structure photovoltaic cell panel, which comprises a monitoring acquisition module and a monitoring identification module, and is characterized in that the monitoring acquisition module is used for acquiring a surface image of a cell panel to be detected and sending the surface image to the monitoring identification module; and the monitoring identification module is used for identifying cracks on the surface of the battery panel according to the surface image so as to realize monitoring of the battery panel. The crack monitoring system of the photovoltaic cell panel can accurately identify the surface crack of the photovoltaic cell panel in a photovoltaic system, and realizes reliable monitoring of the crack fault of the photovoltaic cell panel.

立体式智能配药箱

Circuit board with heat dissipation bumps and manufacturing method

The invention discloses a circuit board with heat dissipation bumps and a manufacturing method, the circuit board comprises a first conductive plate group layer, a heat dissipation plate group layer and a second conductive plate group layer which are stacked in sequence, the heat dissipation plate group layer comprises a plurality of heat conduction and electric conduction plate blocks and insulation plate blocks, the insulation plate blocks are located between the adjacent heat conduction and electric conduction plate blocks, and the insulation plate blocks are located between the adjacent heat conduction and electric conduction plate blocks. Each heat conduction and electric conduction plate is provided with a heat dissipation protruding block protruding out of the surface of the heat conduction and electric conduction plate, and the heat dissipation protruding blocks penetrate through at least one of the first electric conduction plate set layer and the second electric conduction plate ...

ETHER COMPOUNDS WITH NITROGEN-CONTAINING 5-MEMBER HETEROCYCLE AND THE USES THEREOF

Ether compounds with nitrogen-containing 5-member heterocycle, shown as formula (I), in which the definitions of substituents are shown in description. The compounds of present application have broad-spectrum insecticidal activities, and they are very effective to lepidopterous pests, including european pyrausta nubilalis, sugarcane borer, summer fruit tortrix moth, grapholitha inopinata, lymantria dispar L., cnaphalocrocis medialis guenee, pyrausta nubilalis (Hubern), heliothis assulta guenee, grapholitha molesta (Busck), plutella xylostella (L.), laphygma exigua hubner, prodenialitura fabr. and the like, especially more effective to laphygma exigua hubner and prodenialitura fabr., and can have very good effects in very low doses. And the compounds of present application have high activities to homopteran pests such as aphid. At the same time, the compounds of present application have very good fungicidal activities, and can be used for preventing wheat powdery mildew, cucumber downy mildew ...

Connecting structure between clay core wall rock-fill dam and homogeneous earth dam

The invention discloses a connecting structure between a clay core-wall rock-fill dam and a homogeneous earth dam, the clay core-wall rock-fill dam comprises an upstream rock-fill area, an upstream transition area, an upstream inverted filter area, a clay core-wall area, a downstream inverted filter area, a downstream transition area and a downstream rock-fill area which are arranged in sequence, a homogeneous earth dam body is formed by filling clay, and the downstream is provided with a chimney type drainage; an upstream connecting transition layer and an upstream connecting inverted filter layer are laid at the junction of the upstream side of the clay core wall rock-fill dam and the homogeneous earth dam, a downstream connecting transition layer and a downstream connecting inverted filter layer are laid at the junction of the downstream side of the clay core wall rock-fill dam and the homogeneous earth dam, and the clay core wall area is directly connected with the homogeneous earth ...

Method for determining characteristics of anti-icing system of aero-engine based on complete machine test

The invention belongs to the technical field of engine design, and particularly relates to an aero-engine anti-icing system characteristic determination method based on complete machine testing. The method comprises the steps that S1, a plurality of heat exchange units and a plurality of flow resistance units are used for modeling an anti-icing system flow path, an initial anti-icing system characteristic model is obtained, and first anti-icing system parameters under a plurality of incoming flow Reynolds numbers are calculated; s2, testing the whole aircraft engine under a non-icing condition, and calculating a second anti-icing system parameter under a plurality of incoming flow Reynolds numbers; and S3, adjusting the initial anti-icing system characteristic model, so that the first anti-icing system parameter and the second anti-icing system parameter obtained based on the initial anti-icing system characteristic model are in a preset deviation range, and obtaining an adjusted anti-icing ...

Infrared small target detection network training method and device, equipment and storage medium

The invention discloses an infrared small target detection network training method and device, equipment and a storage medium, and relates to the technical field of target detection, and the method comprises the steps: screening a difficult negative sample set and an easy negative sample set from an initial negative sample set based on the positive sample number and a preset proportion coefficient; the preset proportionality coefficient is a preset coefficient used for improving the number balance degree of positive and negative samples; generating a weight matrix for controlling samples in a back propagation process according to the difficult negative sample set and the easy negative sample set; and determining a difficult point mining loss function based on the weight matrix, and performing point supervision training on the infrared small target detection network by using the difficult point mining loss function. According to the scheme, the difficult-to-negative sample set and the easy-to-negative ...

Infrared small target intelligent detection method based on multi-frame difference

The invention discloses an infrared small target intelligent detection method based on multi-frame difference, and relates to the technical field of sequence image detection, and the method comprises the steps: determining a to-be-detected current frame image in an infrared sequence image, screening out a plurality of image frames from the infrared sequence image, wherein the image frames and the current frame image meet a preset frame interval to obtain an image frame set; registering all image frames in the image frame set based on the current frame image to obtain a plurality of frames of registration images, and performing frame difference operation on the current frame image and each registration image to obtain a plurality of frame difference images; and superposing the plurality of frame difference images according to a sequence order to obtain a difference image of the current frame image, and inputting the difference image into a pre-constructed semantic segmentation network to ...

A power distribution line maintenance protecting ground device

... 本实用新型涉及一种配电线路检修保护接地装置，包括中空的挂钩，所述挂钩弯曲钩的内钩面设置导电接触部，且挂钩的下端部插接在第一中空伸缩杆内，所述第一伸缩杆下端连接第二中空伸缩杆，所述第二中空伸缩杆下端连接第三中空伸缩杆，所述挂钩内穿接接地线，所述接地线一端与导电接触部连接，接地线另一端从第三中空伸缩杆的下端部伸出。本实用新型避免出现绕线缠线现象，且接线体不易老化漏电，接地操作简便安全。 ...

Fiber patch laying head, robot and laying method

The fiber patch laying head, the robot and the laying method provided by the invention have the characteristics of flexible picking and laying process, uniform and controllable heating temperature and laying pressure and strong self-adaptive curvature change capability, and have huge application value in the field of composite material laying. The placement head includes: a base; a front end inlet of the air nozzle is formed in the front side surface of the base; the flexible outer cover body is formed on the front side of the base in a sealing and surrounding mode, the interior is hollow, and a sealed space communicated with the front end inlet is formed; the filter screen is mounted on the base and located in the sealed space, and a plurality of filter holes are formed in the surface of the filter screen; the particle filler is formed in the subspace, located on the front side of the filter screen, of the sealed space, only fills part of the subspace in a non-pressing state and comprises ...

ELECTRIC POWER SYSTEM COORDINATED CONTROL METHOD

The present invention relates to the technical field of electric power system control. Disclosed is a coordinated control method, comprising the steps of: S1. measuring the real-time voltage, current, active power and reactive power of each bus node, and setting an AGC instruction; S2. verifying the voltage according to the AGC instruction, and exporting an predicted voltage value and the verification result of a selected bus node; S3. if the AGC instruction satisfies the voltage requirement, then exporting the ACG instruction; otherwise execute step S4; S4. performing AVC according to the predicted voltage value of the selected bus node, and calculating a voltage adjustment value of the selected bus node after AVC is performed; S5. verifying the power according to the voltage adjustment value of the selected bus node, and exporting a predicted power value and verification result of a connecting line; S6. if the AVC instruction satisfies the power requirement, then exporting the AVC instruction ...

DATA RECOVERY METHOD AND DEVICE

A data recovery method and device. The method comprises: detecting data modification performed on a target data object, and establishing a corresponding modification log aiming at data modification at a time; receiving a data recovery request carrying a first modification log identifier (S101); obtaining, according to the receiving time of the received data recovery request and the establishment time of a first modification log determined according to the first modification log identifier, a set of logs to be recovered (S102); and recovering data of the target data object in a descending order of the establishment time of the modification logs and sequentially according to the modification logs in the set of logs to be recovered until the data of the target data object is recovered, according to modification types and data information which are included by the first modification log, to data that exists before the first data modification is executed (S103). By recovering data in a reverse ...

PREPARATION CONTAINING ERGOTHIONEINE, PREPARATION METHOD THEREOF AND USE OF MUSHROOM EXTRACELLULAR FERMENT LIQUOR

Disclosed is a preparation containing ergothioneine. The ergothioneine is provided by an extracellular ferment liquor and/or the concentration of the extracellular ferment liquor which is obtained by removing the mycelia from the ferment liquor produced through the liquid fementation of the mushroom, and the preparation comprises food, cosmetics and animal feed. The method for preparing the preparation comprises liquid-fermentation of the mushroom, removing the mycelia from the fermentation product, and selectively concentrating the extracellular ferment liquor obtained after removing the mycelia. The extracellular ferment liquor and/or the concentration of the extracellular ferment liquor obtained through the liquid fermentation of the mushroom are used in preparing the preparation containing ergothioneine.

Radar measurement system for road investigation

The invention relates to the field of road investigation, in particular to a radar measurement system for road investigation, which comprises the steps that a measurement route of a measurement vehicle is planned, and a positioning system, an automatic navigation system and a radar measurement system are carried on the measurement vehicle; generating a three-dimensional road model through the obtained road surface information collected along the measurement route; generating a risk assessment list based on the three-dimensional road model and a preset risk assessment model; and updating the three-dimensional road model and the risk assessment list based on the obtained road maintenance result. According to the invention, road data can be automatically collected, so that the purpose of facilitating road investigation and measurement is achieved.

MULTI-TERMINAL DIRECT-CURRENT TRANSMISSION SYSTEM FOR WIND POWER GENERATION THROUGH LARGE-SCALE REMOTE GRID CONNECTION

A multi-terminal direct-current transmission system for wind power generation through large-scale remote grid connection, comprising m rectifying stations, a first direct current bus, a second direct current bus and n inverter stations. An input end of each rectifying station is connected with a wind farm through an alternating current bus, and an output end of each rectifying station is connected to the first direct current bus; an output end of each inverter station is connected with a load centre through an alternating current bus, and an input end of each inverter station is connected with the second direct current bus through a direct current line; and the first direct current bus is connected with the second direct current bus through k direct current lines, and the m rectifying stations and the n inverter stations are connected through the k direct current lines, thereby constructing the multi-terminal direct-current transmission system. The system realizes the decoupling of a wind ...

A trapper for catching insect

... 本实用新型公开了用于捕捉昆虫的诱捕器，涉及诱捕装置技术领域。本实用新型包括信息素扩散器和诱捕腔，所述信息素扩散器包括扩散器本体和超声波发生器，所述超声波发生器设置在扩散器本体内部，信息素通过超声波发生器的超声雾化，通过出雾通道管扩散至外界，增加了信息素气息的扩散范围，从而使得大范围内的昆虫能够被信息素引诱，从而实现大范围的昆虫诱捕的目的。 ...

Temperature uniformity rectification support plate hot air anti-icing structure based on convective heat transfer

The invention belongs to the field of aero-engine heat exchange, and particularly relates to a uniform-temperature rectifying support plate hot air anti-icing structure based on convective heat transfer, which comprises a cavity, the cavity is provided with a first partition plate and a second partition plate, and the first partition plate and the second partition plate divide the cavity into a support plate front cavity, a support plate rear cavity and a support plate middle cavity respectively. The top ends of the support plate front cavity and the support plate middle cavity are provided with air inlets for introducing heat flow, the bottom ends of the support plate front cavity and the support plate middle cavity are communicated with the support plate rear cavity, and the support plate rear cavity is provided with a plurality of exhaust holes; the first partition plate between the support plate front cavity and the support plate middle cavity is provided with a plurality of through ...

Screening equipment and method for improving powder purity

The invention discloses screening equipment and method for improving powder purity, and the method comprises the following steps: step S1, soaking and drying, step S2, feeding, step S3, grinding, step S4, multi-stage screening, and step S5, collecting: S1, firstly preparing alloy powder, putting the alloy powder into an organic solution, dissolving part of soluble impurities in the alloy powder, and after the dissolving is finished, adding the soluble impurities into the organic solution, so that the alloy powder is obtained; the alloy powder is dried; the alloy powder grinding device has the beneficial effects that an integrated structure is adopted in the technical scheme, alloy powder is automatically ground through the powder grinding structure, then caking in the alloy powder can be removed, in cooperation with an anti-blocking structure, the situation that the grinding effect is affected due to the blocking situation in the grinding process can be prevented, and after grinding is ...

A trapper for traping insect

... 本实用新型公开了一种用于诱捕昆虫的诱捕器，涉及诱捕装置技术领域。本实用新型包括信息素扩散器和诱捕腔，所述信息素扩散器包括扩散器本体和超声波发生器，所述超声波发生器设置在扩散器本体内部，信息素通过超声波发生器的超声雾化，通过出雾通道管扩散至外界，增加了信息素气息的扩散范围，从而使得大范围内的昆虫能够被信息素引诱，从而实现大范围的昆虫诱捕的目的。 ...

SUBSTITUTED PYRIMIDINE COMPOUND AND PREPARATION METHOD THEREFOR AND USE THEREOF

Disclosed is a substituted pyrimidine compound. The structure of same is as shown in formula I; and for the definitions of each substituent see the description. The compound of the present invention has broad-spectrum fungicidal, insecticidal and acaricidal activities, and has excellent prevention and control effects on cucumber downy mildew, powdery mildew, corn rust, anthracnose, rice blast, aphids and Tetranychus cinnabarinus, etc. (I) ...

Can avoid blast furnace furnace roof voltage -sharing system air feed facility of equalizing valve badge stopper

... 本实用新型公开了种能避免均压阀门卡塞的高炉炉顶均压系统供气设施，包括重力除尘器、旋风除尘器、干法除尘器、净煤气总管、炉顶均压阀门、半净煤气管，所述的重力除尘器之进气口与高炉之煤气出口连接，出气口与旋风除尘器之进气口连接；所述的干法除尘器之进气口与旋风除尘器之出气口连接，出气口处设置净煤气总管；所述的旋风除尘器与料罐之间设置半净煤气管；所述的半净煤气管靠近料罐处设置炉顶均压阀门；所述的半净煤气管与净煤气总管之间设置净煤气支管；所述的半净煤气管上位于旋风除尘器及与净煤气支管的连接点之间设置阀门Ⅰ；所述的净煤气支管上靠近半净煤气管处设置阀门Ⅱ。本实用新型能避免高炉炉顶均压系统的均压阀门卡塞。 ...

Control chip of switching power supply

The invention provides a control chip of a switching power supply. The control chip comprises a high-voltage controlled current branch, a sampling and holding module, a first comparator, a second comparator and a control module. According to the invention, topology detection, power-off detection and under-voltage protection detection can be simultaneously and continuously carried out on the switching power supply in real time through the high-voltage pin of the control chip, and the discharge function of the safety capacitor is realized; a high-voltage pin of the compatible control chip is connected to two types of system topological structures, namely an input side and an output side of a rectifier bridge of the switching power supply; pulse type detection is adopted, power consumption is effectively reduced, and the power consumption can be automatically adjusted according to the phase of the alternating current power supply; the detection circuit only needs to be connected with high-voltage ...

Distribution lines intelligence switch controller function pole

... 本实用新型涉及一种配电线路智能开关控制器操作杆，主要由基座、传感器座、传感器槽、磁体座、转轴、第一支架、第一支架槽、第二支架、第二支架槽、第二支架、扇形滑轮、手柄和电机组成；基座的上端面平行设置有第一支架槽和第二支架槽，第一支架槽的一侧垂直设置有传感器槽，传感器座固定设置在传感器槽中，磁体座设置在传感器座上端，第一支架设置在第一支架槽中，第二支架设置在第二支架槽中，扇形滑轮活动设置在第一支架和第二支架之间，转轴依次穿过磁体座、第一支架、扇形滑轮和第二支架，电机设置在第二支架上端，手柄固定连接在扇形滑轮上。该装置操作简单方便、安全系数高、提高智能开关控制器的控制效率，保证人员的操作安全性。 ...

Construction method of sub-pixel-level click Fourier spectrum reference data

According to the construction method of the sub-pixel-level click Fourier spectrum reference data provided by the invention, a part in the process of some experimental methods using Fourier transform or windowing Fourier transform can be formed, the method is one-time extension and expansion of Fourier transform, and the method has the advantages of being simple and convenient, accurate in constructed reference data and the like. Meanwhile, in the field of optics, since the three-dimensional Fourier transform atlas cannot be obtained, it is difficult to apply the method to three-dimensional calculation, and application in a two-dimensional space is not affected. According to the method, the Fourier transform content is newly enriched, and some standard reference data can be conveniently constructed in the field of optical measurement mechanics.

Air conditioner, control method thereof and computer readable storage medium

The control method is based on the air conditioner with a heating device arranged on an outdoor unit chassis, and comprises the steps that when the air conditioner is in heating operation, the outdoor environment temperature and the outdoor heat exchanger temperature are obtained; and when the outdoor environment temperature and the outdoor heat exchanger temperature reach the preset condition that the outdoor unit has the frosting risk, the heating device is controlled to be started. The invention further discloses the air conditioner and a computer readable storage medium. The invention aims to improve the starting timeliness of the outdoor unit chassis heating device and prevent the air conditioner from frosting during heating operation in a high-humidity environment so as to improve the heating effect of the air conditioner.

Beauty and skin care composition and preparation method thereof

The invention relates to A61K8/34, in particular to a skincare composition and a preparation method thereof. Comprising the following raw materials in parts by weight: 3-5 parts of a plant extract, 0.2-0.7 part of a solubilizer, 2-5 parts of a glycoside compound, 1.2-2.5 parts of an antioxidant, 0.3-0.5 part of a pH regulator, 3-5 parts of a softening and moistening agent, 0.2-0.5 part of hyaluronic acid, 0.2-0.5 part of a thickening agent, 1.5-3.5 parts of a preservative, 5-8 parts of a solvent and 80-100 parts of water. The beauty and skin care composition provided by the invention can effectively repair skin and promote skin metabolism, and has the advantages of good oxidation resistance and moisture retention, mildness, no irritation, high stability and the like.

PYRIMIDINE UREA COMPOUND CONTAINING ISOXAZOLINES AND USE THEREOF

The present invention belongs to the field of agricultural herbicides, and in particular relates to a pyrimidine urea compound containing isoxazolines and a use thereof. The pyrimidine urea compound containing isoxazolines is as shown in general formula (I). The compounds of general formula (I) have a very good herbicidal activity, and can effectively control barnyard grass, green bristlegrass, Cyperus difformis, Juncellus serotinus, Digitaria sanguinalis, Arthraxon hispidus, Abutilon theophrasti, Zinnia elegans, Amaranthus retroflexus, purslane, Xanthium sibiricum, Solanum nigrum,Senna obtusifolia, Hibiscus trionum, Glycine ussuriensis, and the like, and can obtain a very good herbicidal effect at low doses, is relatively safe for crops such as corn, wheat and rice, and can be used as a herbicide in agriculture.

Efficient water fetching method for hearth

The invention discloses an efficient water fetching method for a hearth. The method comprises the process steps of previous preparation, water pipe laying, water fetching control, ventilation, end point control and the like. Through the processes of uniform and radial staggered arrangement of the water pipes in the circumferential direction, water pumping segment control, fan ventilation cooling, nitrogen introduction cooling and the like, the conditions that the water pumping amount is too large or too small, and the water pumping rhythm is too fast or too slow can be avoided, the coal gas safety risk is avoided, and the effect of protecting the refractory material of the hearth to the maximum extent can be achieved.

Air supply and collection cavity of anti-icing system and optimization method of air supply and collection cavity

The invention provides a method for optimizing a gas supply and collection cavity of an anti-icing system, and the method comprises the steps: constructing a characteristic parameter of the gas supply and collection cavity, and the characteristic parameter is the aspect ratio of the gas supply and collection cavity; taking a plurality of values between the minimum value and the maximum value of the aspect ratio according to a preset interval to form N aspect ratios including the minimum value and the maximum value of the aspect ratio, and performing three-dimensional network modeling of flow heat transfer characteristic calculation of the gas supply gas collection cavity based on the N aspect ratios to form N calculation models in total; carrying out weight evaluation and hydrodynamic force calculation on the gas supply and collection cavities based on the N calculation models to obtain weight evaluation results and flow heat transfer characteristics of the N gas supply and collection cavities ...

Heavy-load radial tire body cord thread compression model and analysis and design optimization method

The invention relates to the technical field of optimal design of tires, in particular to a heavy-load radial tire body cord thread compression model and an analysis and design optimal selection method. The method comprises the following steps: obtaining a strain distribution result, obtaining maximum compression strain values, and comparing multiple groups of maximum compression strain values. An area with a negative strain distribution result is defined as the material behavior of a pressed area of the tire body cord thread, and the absolute value of the negative value is the compression strain value of the tire body cord thread; the position of the maximum compression strain value in the strain distribution result is the initial point of the ring part hollowing damage; and selecting the design scheme with the minimum maximum compression strain value by comparing the maximum compression strain value of the tire body cord in the strain distribution result. Through an optimal design scheme ...

Filter assembly with unique shape

A method of manufacturing a media assembly includes: winding a filter media about a central axis into a media roll; and cutting the web of media along at least two cutting lines into at least two media packs of at least two media assemblies. The volume of media is cut along at least one plane parallel to the central axis.

Dispensing device for intelligent pharmacy

The medicine dispensing device specifically comprises a base, an assembling base is fixedly installed on the back face of the base, a medicine cylinder is fixedly connected to the front of the front face of the top of the assembling base, a lifting device is slidably installed between the medicine cylinder and the base, and a medicine dispensing mechanism is movably installed in the middle of the front of the front face of the assembling base; and a core shifting rod is rotationally connected to an inner cavity of the medicine cylinder. According to the medicine dispensing device for the intelligent pharmacy, a circular structure is cut through a stirring piece, the stirring piece is gradually processed into powder, the stirring piece discharges broken medicine to the bottom of a steel ring layer, and the broken medicine can be conveniently combined with other medicine below the steel ring layer; at the moment, the two treated medicines enter a storage piece on the right side of the bottom ...

Preparation method of low-temperature core-shell coaxial fiber electrode as well as product and application of low-temperature core-shell coaxial fiber electrode

The invention discloses a preparation method of a low-temperature core-shell coaxial fiber electrode as well as a product and application of the low-temperature core-shell coaxial fiber electrode. A stacked two-dimensional nanosheet material supported by a carbon nanotube with a three-dimensional spherical knot structure is used as a core electrode structure, and a continuous filamentous carbon nanotube wire membrane is used as a shell electrode; the carbon nanotube wire membrane is twisted in the same direction through a Fermat spinning method, a core electrode is coated, and the core-shell coaxial fiber electrode is obtained, the core-open electrode is beneficial to improving the low-temperature capacity of the composite electrode, and the carbon nanotube with the high orientation degree of the shell is mainly used as a mechanical support of the composite electrode. And the optimization of the low-temperature mechanical property and the energy storage property of the composite electrode ...

METHOD FOR CALCULATING ELECTRIFIED RAILWAY HARMONIC AND NEGATIVE SEQUENCE CURRENT

A method for calculating electrified railway harmonic and negative sequence current comprises the following steps: determining the running mode of the power grid in a Power System Analysis Software Package (PSASP); determining harmonic models of the elements in the power grid; if a traction transformer is used in the power grid, establishing a model for the traction transformer in the PSASP, and directly inputting basic parameters of the traction transformer and the harmonic value and negative sequence current value generated by the low-voltage side electrified railway; if no traction transformer is used, directly selecting the calculation content; calculating the harmonic and negative sequence current; and outputting the result. This method establishes a model for the traction power system in the PSASP, and has great advantages in calculating the harmonic and negative sequence current for the electrified railway.

Building white pattern construction method and device, equipment and storage medium

The invention provides a building white pattern construction method and device, equipment and a storage medium, and the method comprises the steps: obtaining airborne LiDAR point cloud data, and dividing the airborne LiDAR point cloud data into at least two task partitions according to a preset partition standard; preprocessing the point cloud in each task partition by adopting a preprocessing strategy matched with each task partition; non-ground point clouds are screened out from all the preprocessed task partitions through a filtering processing algorithm; and on the basis of non-ground point clouds screened from the task partitions after preprocessing, building white models of the task partitions are constructed. According to the method and the device, the task partitions of different types are preprocessed by adopting the preprocessing strategies matched with the task partitions, so that the preprocessing result is more accurate, and the precision of building white pattern construction ...

Solar greenhouse heat preservation quilt anti-rolling device and control system

The invention relates to the technical field of agricultural greenhouses, and provides a sunlight greenhouse heat preservation quilt anti-rolling device and a control system, the sunlight greenhouse heat preservation quilt anti-rolling device is arranged on a framework of a sunlight greenhouse, and the sunlight greenhouse heat preservation quilt anti-rolling device comprises a pull wire, a pull rod and a control system, the at least one limiting switch is arranged at the end part of the lower end of the stay wire and fixed below the framework, the limiting switch is connected with the end part of the lower end of the stay wire, and the limiting switch can be triggered by the stay wire to generate a trigger signal after the heat preservation quilt is rolled up or unfolded; and the controller is in communication connection or electric connection with the limiting switch and is used for controlling the quilt rolling machine to stop when the trigger signal is received. The stay wire is arranged ...

Device and method for measuring hole concentration on surface of photoelectrode

The invention discloses a photoelectrode surface hole concentration measuring device and method. The photoelectrode surface hole concentration measuring device comprises an electrolytic tank, a first light source, a second light source, an optical element, a silicon diode detector, a data acquisition device, an electrochemical workstation and a computer, according to the invention, the photoelectrode in the electrolytic tank is periodically irradiated by two beams of light with different periods and different wavelengths, so that the concentration of photogenerated holes on the surface of the electrode and the quantitative relation between the concentration and photocurrent are detected in situ. The method can be applied to research on an electrode interface reaction kinetics process in a photoelectrochemical system so as to more scientifically guide preparation of the photoelectrode.

Emergency control terminal and method for autonomous vehicle

The invention belongs to the technical field of automatic driving, and particularly discloses an emergency control terminal and method for an automatic driving vehicle. The vehicle dial-up module is used for switching among a plurality of vehicles according to the number information stored by the information storage module and selecting any one of the vehicles; the wireless communication module is used for sending control information to the vehicle selected by the vehicle dial-up module in the vehicles stored in the information storage module and receiving response information of the currently selected vehicle; the vehicle control unit is used for converting an operation instruction of a monitor into control information; the state indication unit is used for generating indication information according to the response information; the method has the advantages that a user carries the control terminal to control the vehicle emergently under the condition that the user knows the state of the ...

Nucleic acid sampling robot and sampling method

The invention discloses a nucleic acid sampling robot and a sampling method.The robot comprises a supporting piece, a parallelogram connecting rod mechanism, a cotton swab clamping mechanism, a linear motion mechanism and a driving connecting rod, and the parallelogram connecting rod mechanism at least comprises a first connecting rod and a second connecting rod which are parallel to each other; wherein the tail part of the first connecting rod serving as the rack is mounted on the supporting piece through a revolute pair; the cotton swab clamping mechanism is mounted at the front end of the second connecting rod; the two linear motion mechanisms are installed on the supporting piece in a V shape. One ends of the two driving connecting rods are respectively connected with the tail part of the second connecting rod through spherical hinges, the other ends of the two driving connecting rods are respectively connected with sliding blocks of the two linear motion mechanisms through spherical ...

Lithium positive electrode mixed material and preparation method thereof

The invention discloses a lithium positive electrode mixed material and a preparation method thereof, and belongs to the field of lithium ion battery positive electrode active materials, the lithium positive electrode mixed material is composed of lithium cobalt oxide large particles doped with a micron-order spinel phase and coated with a submicron-order spinel phase and three-element small particles coated with the submicron-order spinel phase, the material is prepared by two methods, one method is that the material is prepared by precursor doping and secondary coating, and the other method is that the material is prepared by primary doping and secondary coating. The lithium positive electrode mixed material has high energy density, can be used for power lithium batteries, has higher energy density than lithium iron phosphate, and also has longer cycle life and better safety performance.

ARYLOXY DIHALOPROPENYL ETHER COMPOUND AND USE THEREOF

The present invention discloses an aryloxy dihalopropenyl ether compound with the structure shown as general formula (I), of which the group definitions can be seen in the specification. The present invention also discloses the use of the compound with general formula (I) as an insecticide in the agricultural field and an insecticidal composition using the compound with general formula (I) as an active component.

Plug-in type low-temperature air supply connector

The invention relates to the field of carrier rocket air supply devices, in particular to a plug-in type low-temperature air supply connector. Comprising an on-rocket connector, a ground inflation assembly and a ground supporting assembly. The connector is installed at the tail of a rocket body, one end of the rocket joint is connected with a rocket air supply pipeline, the other end of the rocket joint is inserted into a center hole of the ground inflation assembly to form clearance fit, sealing is achieved through a spring energy storage type sealing ring, and the rocket and the ground are tightly jacked by applying torque in the inflation stage and automatically separated in the take-off process. The ground inflation assembly is additionally provided with a pipe joint for ground air supply; the ground inflation assembly and the ground supporting assembly are connected through a ball head, and the device can adapt to drifting and rolling of a rocket body when the rocket takes off. The ...

INTEGRATED NEGATIVE-PRESSURE WOUND THERAPY DEVICE

An integrated negative-pressure wound therapy device, comprising: a medical dressing (1) for covering a wounded human tissue (0); a transparent medical adhesive film (3) covering the medical dressing (1) for sealing a wound area; a drainage suction disc (2) disposed at an opening on the transparent medical adhesive film (3); a negative-pressure drainage system connected, via a drainage tube (4), to a fluid outlet of the drainage suction disc (2); a nutrient supply system, an oxygen supply system, and an ozone system respectively connected, via a combined infusion tube (30) provided with a four-way connector (29), to a combined infusion port (31) of the drainage suction disc (2); and a main circuit board (14) for regulating and controlling the operation of the negative-pressure drainage system, the nutrient supply system, and the oxygen supply system. The device of the present invention can be used for negative-pressure drainage therapy and for oxygen therapy, ozone therapy and localized ...

Photo-thermal functionalized decalcified bone matrix material as well as preparation method and application thereof

The embodiment of the invention discloses a photo-thermal functionalized decalcified bone matrix material and a preparation method and application thereof, the photo-thermal functionalized decalcified bone matrix material comprises a decalcified bone matrix material and photo-thermal functional nanoparticles loaded on the decalcified bone matrix material, and an allogeneic decalcified bone matrix is used as a substrate; coating the hollow mesoporous manganese dioxide nanoparticles loaded with the antibacterial agent on the surface of the allogeneic decalcified bone matrix through polydopamine; the hollow mesoporous manganese dioxide has a typical hollow mesoporous structure, a good pore channel structure and an ultrahigh specific surface area, and can effectively load antibacterial agents such as chlorhexidine and the like; the decalcified bone matrix material with the photothermal effect can quickly convert light energy into heat energy to kill bacteria under the irradiation of near-infrared ...

Cable cleaning device for electric power communication

The invention discloses a cable cleaning device for electric power communication. The cable cleaning device comprises a cleaning box and a cleaning unit. A liquid outlet pipe is arranged in a liquid outlet formed in the middle of the lower right corner of the cleaning box, a valve is connected to an inner cavity of the liquid outlet pipe in series, symmetrically-distributed connecting plates are arranged at the four corners of the upper surface of the cleaning box, and rotating rollers are rotationally connected to the upper ends of the longitudinally-adjacent connecting plates through rotating shafts; the cleaning unit comprises mounting frames, rotating frames and brushes, the mounting frames are longitudinally and uniformly arranged in the middle of the bottom wall surface of the cleaning box, inner cavities of the mounting frames are rotationally connected with the rotating frames which are transversely and symmetrically distributed through bearings, and the brushes which are uniformly ...

Grid line detection method for solar cell panel with TOPCon structure

The invention relates to the technical field of photovoltaic system fault identification based on infrared spectrum, in particular to a grid line detection method for a TOPCon structure solar cell panel, which comprises the following steps: generating a temperature point cloud image of an infrared image; calculating the kurtosis of each target peak point; clustering all the target peak points to obtain a plurality of clusters, and calculating the abnormal degree of each target peak point; obtaining a first included angle and a first distance according to the temperature gradient direction of each target peak point and the principal component direction of the cluster to which the target peak point belongs; calculating the possible degree of the target peak point according to the abnormal degree, the first included angle and the first distance; and according to the possible degree, obtaining all abnormal peak points as a fault identification result of the solar cell panel. According to the ...

Auxiliary device for preventing welding flux from blocking and dripping in welding flux coating process for welding rod manufacturing

The invention relates to the technical field of welding rod manufacturing, and discloses an auxiliary device for preventing welding flux from blocking and dripping in the welding flux coating process for welding rod manufacturing. The auxiliary device for preventing the welding flux from blocking and dripping in the welding flux coating process for welding rod manufacturing comprises a feeding cavity; a partition plate is movably connected to the bottom of the feeding cavity; a rotating shaft is movably connected to the right side of the partition plate; a cutting coil is movably connected to the outer portion of the rotating shaft; the outer portion of the cutting coil is movably connected with a rotating fan blade; the left side of the rotating fan blade is movably connected with a magnetic plate; and the left side of the magnetic plate is movably connected with a connecting circuit. According to the invention, part of the kinetic energy of the welding flux powder can be converted into ...

Method for improving durability of tire bead of engineering radial tire

The invention discloses a method for improving durability of a tire bead of an engineering radial tire, and belongs to the technical field of tires. According to the technical scheme, a rear pressing roller is used for synchronously and symmetrically pressing a lower rubber core, and the pressing step is completed in three sections. The distribution uniformity and stability of the lower rubber core material of the giant radial tire bead can be effectively improved, and the quality problems of early tire bead bulging, delaminating and the like in the tire using process caused by non-uniform distribution of the thickness of the lower rubber core are avoided.

Novel tight line frame of multi -functional distribution lines

... 本实用新型涉及配电线路的技术领域，尤其是一种新型多功能配电线路紧线架，主要由电线杆、连接横梁、连接杆、避雷针、放线架组件和后支架组成；所述的连接横梁平行设置在连接杆之间，所述的避雷针设置在连接杆的上端，所述的放线架组件滑动设置在连接横梁的下端，所述的后支架固定连接在电线杆上；所述的放线架组件主要由固定圈、连接块和固定环组成，所述的固定圈和固定环之间通过连接块连接。该装置操作简单方便，便于放线架的自由更换，可以实现多道线缆的固定，提高了紧线架的使用效率，防雷击，提高了操作安全性。 ...

Distribution lines trouble on -line monitoring system

... 本实用新型涉及一种配电线路故障在线监测系统，包括相互独立的监测单元、监测中心、手持通讯终端，所述监测单元包括变压器模块以及连接变压器模块的线路监测模块，所述线路监测模块与监测中心之间采用无线通讯传递信息，所述监测中心与手持通讯终端无线信号连接。本实用新型通过对每个变压器模块进行监测，可及时获知出现故障的电路位置，并通过无线传输至维修人员处，告知检修人员，同时配备公共的报警平台，通知附近的检修人员，提高了故障维修排出效率，同时监测系统还配备了过载保护的功能，进一步提高了电网安全性。 ...

Settlement deviation rectifying device and deviation rectifying method for pipeline support foundation settlement

The invention relates to the field of industrial pipeline design and safety production, and discloses a settlement deviation rectifying device and a deviation rectifying method for pipeline support foundation settlement. The settlement deviation correcting device comprises a support plate (2) arranged on a pipeline support foundation (10), a barrel (5) arranged in the pipeline support foundation (10), a supporting rod (1) connected to the support plate (2) and extending downwards into the barrel (5), a base plate (6) arranged in the barrel (5) and a fixing piece (4). The supporting rod (1) can slide up and down in the vertical direction relative to the cylinder body (5), the supporting rod (1) can be detachably fixed to the cylinder body (5) through the fixing piece (4), and the lower end of the supporting rod (1) is supported on the base plate. According to the technical scheme, settlement deviation correction of the pipeline support can be achieved by prying and lifting the support plate ...

ASR controlling means of car

... 一种汽车的ASR控制装置，包括ASR电磁阀（1）、双向阀（2）、继动阀（3）、ABS电磁阀（4）、制动气室（5）、制动阀（6）、辅助储气筒（7）和后桥储气筒（8），ASR电磁阀（1）与车辆ECU相连接，辅助储气筒（7）的出气口接ASR电磁阀（1）的进气口，后桥储气筒（8）的出气口分别接制动阀（6）的进气口和继动阀（3）的进气口ASR电磁阀（1）的出气口和制动阀（6）的出气口分别接双向阀（2）的两个进气口，双向阀（2）的出气口接继动阀（3）的控制口，继动阀（3）的出气口接ABS电磁阀（4）的进气口， ABS电磁阀（4）的出气口与制动气室（5）相连接。能够减少ASR控制功能的响应时间，实现减少驱动轮打滑，防止侧滑和甩尾的情况发生。 ...

Application of neotuberostemonine in preparation of medicine for treating pulmonary arterial hypertension

The invention provides application of neotuberostemonine in preparation of a medicine for treating pulmonary arterial hypertension, and relates to the technical field of medical medicine development. Tests prove that the mouse pulmonary arterial hypertension model using the new tuberostemonine can obviously relieve pulmonary arterial hypertension right ventricular hypertrophy and right ventricular systolic pressure, relieve pulmonary artery blood vessel middle layer thickening and relieve lung tissue inflammatory response, and the mouse weight is not changed when compared with a control group; the new tuberostemonine has a good curing effect and has no side effect, which reflects that the new tuberostemonine can be used as a safe and effective medicine for targeted therapy of inflammation and related symptoms caused by pulmonary arterial hypertension.

Carotid artery ultrasound image segmentation method and device, equipment and storage medium

The invention provides a carotid artery ultrasound image segmentation method and device, equipment and a storage medium, and relates to the technical field of image processing, and the method comprises the steps: obtaining a sequence ultrasound image, dividing continuous T frames of ultrasound images into a group, and amplifying the ultrasound images in the group in a preset mode; t is a positive integer greater than 1; inputting the amplified ultrasonic image into an encoder structure, and extracting image features of each frame of ultrasonic image; according to the image feature similarity between the to-be-segmented ultrasonic image and the previous image, feature weighting is carried out on the previous image, the previous image is fused with the image feature of the to-be-segmented image, and the fused image feature is output; and obtaining a final segmentation result according to the fused image features. For a plurality of continuous frames of ultrasonic images, the fusion of the ...

Double-arm collaborative ultrasonic puncture robot and calibration method thereof

The invention discloses a double-arm collaborative ultrasonic puncture robot and a calibration method thereof, the robot comprises two mechanical arms, a puncture device and an ultrasonic scanning device, and the calibration device comprises a calibration cone, a calibration phantom and a reference needle tip disc. The ultrasonic probe and the puncture device are respectively arranged at the tail ends of the two mechanical arms together with one calibration cone; firstly, a world coordinate system is established based on the ultrasonic mechanical arms, then the two mechanical arms are controlled to enable the calibration cone to touch, calibration between the two mechanical arms is completed, the calibration cone is carried by the ultrasonic mechanical arms to touch a needle point on the reference needle point disc, and coordinate measurement of the needle point is completed. An ultrasonic mechanical arm is adopted to carry an ultrasonic probe to scan the needle point wrapped by the calibration ...

Camshaft coaxiality detection system

A camshaft coaxiality detection system of the present invention comprises a positioning clamp and a detection mechanism, the positioning clamp comprises a clamping plate and a clamping plate driving unit, the driving unit comprises a hydraulic cylinder, slide blocks and a reverse lead screw, the two ends of the hydraulic cylinder are respectively installed on the two slide blocks, the slide blocks are respectively installed at the two ends of the reverse lead screw, and the detection mechanism is installed on the detection mechanism. The clamping plates are oppositely and fixedly connected to the upper portions of the sliding blocks. The detection mechanism comprises a supporting seat and a detection plate, distance measuring sensors are arranged on the inner side of the detection plate, the distance measuring sensors are uniformly arranged on the inner side of the arc-shaped detection plate, and central axis extension lines of the distance measuring sensors intersect at the arc-shaped ...

Outdoor distribution transformer synthesizes switch board

... 本实用新型涉及配电柜的技术领域，尤其是一种户外配电变压器综合配电柜。其主要由配电柜柜体、箱门、配电柜柜体顶部的吊取装置和配电柜柜体下端的保护装置，所述箱门设置在配电柜柜体上，所述吊取装置设置在配电柜柜体的上端，所述保护装置设置在配电柜柜体的下端；所述吊取装置主要由上盖、铰链和摆臂组成，所述上盖的截面呈峰状，所述摆臂通过铰链连接在上盖的两端；所述保护装置主要由设置在加强板和设置在加强板下的滑轮组成，所述加强板的截面也呈峰状，所述滑轮滚动设置在加强板的下端。本实用新型的有益效果是：方便操作人员的吊取、检修，操作简单方便，可以有效防止柜体底部生锈问题，提高配电柜的使用寿命。 ...

Box girder and manufacturing method thereof

The invention provides a box girder. The box girder comprises a middle section, at least two variable sections and two girder end sections, the middle section is located in the middle of the box girder, and at least one change section is arranged at each of the two ends of the middle section. The two beam end sections are arranged at the two ends of the box beam correspondingly and connected with the change section. Each of the middle section, the change section and the beam end section comprises a box body with a containing cavity in the middle, and the top of each box body extends towards the two sides perpendicular to the extending direction of the box beam to form two side wings; wherein the outer contours of the sections of the middle section, the variable sections and the beam end sections are the same, the thicknesses of the four walls of the box body of the box girder from the middle section in the middle to the beam end sections at the two ends are sequentially increased, and the ...

Self-calibration circuit, method and equipment applied to device test system and storage medium

The invention provides a self-calibration circuit, method and equipment applied to a device test system and a storage medium. The self-calibration circuit comprises a reference voltage source; the voltage switching circuit is used for adjusting the output voltage of the reference voltage source to an intermediate standard value between the maximum positive voltage and the minimum negative voltage; a first node of the output end of the voltage switching circuit is connected with the waveform acquisition unit through a first switch and is connected with the error amplification circuit through a second switch, and the error amplification circuit is further connected with the waveform generation unit, the waveform acquisition unit and the pre-amplification unit. Through the technical scheme provided by the invention, the self-calibration of the device test system can be realized by using a common instrument combination framework, the self-calibration can be quickly realized through a common ...

Stacked cage-rearing laying hen house environment regulation and control threshold parameter optimization method and storage medium

The invention discloses a stacked cage-rearing laying hen house environment regulation and control threshold parameter optimization method and a storage medium. The method comprises the steps that standardized stacked cage-rearing laying hen house environment parameters and laying hen egg laying performance index data are collected; establishing a comprehensive evaluation and prediction model for the environment quality of the stacked caged chicken coop based on the index data; and aiming at the established comprehensive evaluation and prediction model for the environment quality of the stacked caged chicken coop, establishing an environment regulation and control threshold parameter optimization model of the stacked caged chicken coop. The optimization method has universality, the most suitable feeding environment can be researched according to the actual feeding condition of each house type and each variety in each region, corresponding change and alignment can be carried out, the optimal ...

Hot straightening method for rolled steel plate

The invention provides a hot straightening method for a rolled steel plate, according to the hot straightening method for the rolled steel plate, large-pressure straightening is achieved through hot straightening parameter presetting, pressure cylinder input and manual adjustment in the straightening process, and the hot straightening method for the rolled steel plate relates to the technical field of metallurgy. The problem that internal stress deformation and buckling exist after the steel plate is placed on the cooling bed is solved, meanwhile, the straightness after hot straightening is improved by reducing the roll gap value and using the pressure cylinder, and after the steel plate is cooled and deformed on the cooling bed, the plate shape is basically flat after the steel plate is subjected to disc shearing edge.

Underground roadway-oriented trackless rubber-tyred vehicle unmanned driving method

The invention belongs to the technical field of unmanned driving, and discloses an underground roadway-oriented trackless rubber-tyred vehicle unmanned driving method, which comprises the steps of early-stage accuracy, task determination and roadway perception; receiving sensed and detected information through a state decision-making layer, and judging a driving state according to the detected information; the control decision-making layer selects a corresponding control decision according to the judged driving state; and the tracking control layer selects a corresponding tracking control mode according to the selected control decision. The method can adapt to special underground environment conditions, different state decision judgment and control execution switching are performed according to sensing results, various dynamic scenes such as vehicle meeting, obstacle avoiding and obstacle stopping are flexibly processed while the control precision is guaranteed, the number of manual intervention ...

NB-IOT (Narrow Band Internet of Things)-based Bluetooth-controlled multi-channel sensing alarm

The invention discloses a Bluetooth-controlled multipath sensing alarm based on NB-IOT, and belongs to the technical field of intelligent alarm terminals. A plurality of probe heads are in contact with a to-be-detected surface, so that the plurality of probe heads can be arranged according to the shape of the to-be-detected surface, and a fixing ring and the probe heads are supported through the elastic force of springs; a screw rod drives a piston plate to move in a piston cylinder, gas in a cavity can enter an air cushion cylinder through a plurality of air guide pipes, the air cushion cylinder is expanded, a plurality of anti-skid rings are driven to be tightly attached to the outside of the detection needle head, and the detection needle head is kept at the current telescopic position. And then the multi-channel sensing alarm main body is installed on the object to be detected, so that the normal detection work is prevented from being influenced by the free movement of the detection ...

Product design knowledge management service matching method

... 本发明提供了种产品设计知识管理服务机理及匹配方法，包括以下步骤：步骤1：分析产品设计知识管理服务过程中知识服务需求方、知识服务提供方和知识管理服务平台运营方；步骤2：根据不同的对象，将知识服务特征划分为知识服务资源特征属性和知识服务需求特征属性；步骤3：不同的利益方有其各自的知识服务内容和服务流程；步骤4：根据知识服务需求方的知识服务需求与知识服务提供方提供知识资源的服务属性进行相似度计算，然后进行服务资源的匹配，将匹配后的知识资源提供给知识服务需求方。本发明将多目标优化模型转化为单目标优化模型，并通过求解优化模型得到双边匹配结果，从而提高设计人员获取知识的满意度，提高产品设计效率。 ...

Filtering lamination and filter

The invention relates to the technical field of lamination filters, in particular to a filter lamination and a filter, and the filter lamination provided by the invention comprises a lamination body, a plurality of flow guide parts and a flow channel structure. The flow guide pieces are distributed on the lamination body in an array mode in the first direction and the second direction and are arranged in a protruding mode along the surface of the lamination body, and every two adjacent flow guide pieces are arranged at intervals; the shortest distance between every two adjacent flow guide pieces in the second direction is a first interval, the shortest distance between every two adjacent flow guide pieces in the next group in the first direction in the second direction is a second interval, and the first interval is larger than the second interval; the flow channel structure comprises a plurality of first flow channels and a plurality of second flow channels which are arranged in a staggered ...

Debugging control method and device based on FPGA, computer equipment and storage medium

The invention provides a debugging control method and device based on an FPGA (Field Programmable Gate Array), computer equipment and a storage medium. The method comprises the following steps: establishing communication with the FPGA through a serial port; acquiring a user instruction, acquiring a corresponding control instruction from a preset instruction set according to the user instruction, and sending the control instruction to the FPGA; and obtaining a query instruction, and querying the state of the FPGA in response to the query instruction. The FPGA is connected through the serial port, and the communication component is established based on the FPGA, so that a user can send a control instruction to the FPGA and inquire the state of the FPGA on the upper computer, the FPGA debugging is realized, the problem that a simulator cannot be used for debugging in some occasions is solved, and the FPGA debugging is more flexible and convenient.

Multi-window page display method and device and window segmentation method and device

The invention discloses a multi-window page display method and device and a window segmentation method and device. The method comprises the steps that a target page is displayed in an interactive interface, the target page comprises at least one window, the windows are used for displaying module information corresponding to all function modules in the interactive interface, and the module information comprises module layout information and module data information; and in response to the first operation instruction, displaying module information of the at least one target function module in a target content block associated with the target window in a target form, the target content block being any one of a plurality of content blocks in the target page. The method solves the technical problem that the related technology does not support the simultaneous opening of a plurality of function pages through a single window.

Traditional Chinese medicine compound preparation for preventing and treating pullorum disease and preparation method thereof

The invention discloses a traditional Chinese medicine compound preparation for preventing and treating pullorum disease and a preparation method thereof, and particularly relates to the technical field of veterinary drugs, and the traditional Chinese medicine compound preparation comprises the following raw materials in parts by weight: 20-40 parts of Chinese pulsatilla root, 20-40 parts of scutellaria baicalensis, 10-30 parts of dandelion, 10-30 parts of purslane, 10-30 parts of fructus chebulae, 5-15 parts of astragalus membranaceus and 5-15 parts of pericarpium citri reticulatae. The preparation method comprises the following steps: weighing the traditional Chinese medicines according to the proportion of a prescription, adding distilled water which submerges the medicinal materials into a marmite, soaking the traditional Chinese medicines in the marmite for 30 minutes, boiling with strong fire, decocting with slow fire for 30 minutes, filtering the liquid medicine by using eight layers ...

Metal powder vibration screening and collecting device and using method thereof

The invention relates to a metal powder vibratory screening and collecting device and a using method thereof, and discloses a device which intermittently blows air into an inner-layer screening barrel through an air inlet hose, blows accumulated metal powder to a plurality of screening plates and is matched with the inner-layer screening barrel through a vibration motor to perform vibratory screening on the metal powder with different particle sizes. The screening plate can be prevented from being completely blocked, and meanwhile the screening time is shortened. The device is characterized in that the device is composed of a main body assembly and a screening assembly, the main body assembly is composed of an outer-layer collecting barrel, a reinforcing spring, a supporting spring and an operation door, a mounting groove is formed in the side wall of the outer-layer collecting barrel, the operation door is detachably arranged in the mounting groove, and the outer-layer collecting barrel ...

Self-pressure-relief one-way valve

The invention discloses a self-pressure-relief one-way valve which comprises a valve body and a movable valve. A cavity is formed in the valve body, and an input hole and an output hole which are respectively communicated with the cavity are formed in the valve body; the output hole communicates with one end of the cavity, and an opening is formed in the output face. The movable valve is arranged in the cavity and is in sliding connection with the cavity, a spring is arranged between the movable valve and the inner wall of the cavity, and the spring is used for enabling the end face of one end of the movable valve to abut against the output face so as to seal the output hole. The end face, abutting against the output face, of the movable valve is a closing face, the output face is partially concave and matched with the closing face to form an annular groove, or the closing face is partially concave and matched with the output face to form an annular groove, and the annular groove is communicated ...

Sweet potato virus specific primer pair, application thereof and sweet potato virus one-step multiple RT-PCR (Reverse Transcription-Polymerase Chain Reaction) detection method

The invention discloses a sweet potato virus specific primer pair, application thereof and a sweet potato virus one-step multiple RT-PCR (Reverse Transcription-Polymerase Chain Reaction) detection method, and belongs to the technical field of sweet potato virus detection. According to the invention, coat protein genes of four sweet potato viruses, namely, sweet potato pinniform mottle virus, sweet potato latent virus, sweet potato G virus and sweet potato C virus, of potato Y virus are compared, and four pairs of specific primers for detecting the four sweet potato viruses are designed and screened; a one-step method multiplex RT-PCR detection method capable of simultaneously detecting four sweet potato viruses is established by combining a one-step method RT-PCR detection method and optimizing reaction conditions of the sweet potato viruses. The method has the beneficial effects that by analyzing the sensitivity, the stability and the practicability of the established detection method, ...

Garden water supply, fertilizer application and sprinkling irrigation device

The garden water supply and fertilizer application sprinkling irrigation device is applied to the field of water supply and fertilizer application, the single wheel is arranged for moving driving, the trafficability of the device in garden water supply and fertilizer application operation can be effectively improved, the damage degree of the device to crops in a garden in the moving process can be effectively reduced, and meanwhile, the device is convenient to use. The four brushless motors are symmetrically installed on the left side and the right side of the fuselage through the supporting arms, the rotors are installed on driving shafts of the brushless motors, the electric control unit is used for controlling, and the balance of the device is corrected by means of lift force generated by high-speed rotation of the rotors on the left side and the right side; the operation stability of the device in the actual operation process is guaranteed, the two clamping rollers are symmetrically ...

Liquid level measuring device and method for TFT (thin film transistor) substrate glass production stirring tank

The invention discloses a liquid level measuring device and method for a TFT substrate glass production stirring tank. The liquid level measuring device comprises a measuring device base body, a first measuring port, a first measuring scale, a second measuring port, a second measuring scale and a platinum probe. The measuring device base body is arranged on the upper surface of a flange plate in a stirring tank; the measuring device base body is provided with a first measuring port and a second measuring port; platinum probes are arranged in the first measuring port and the second measuring port; a first measuring scale which is vertically arranged is fixed on the outer side of the first measuring port, and a platinum probe in the first measuring port measures the height of molten glass in the stirring tank; a second measuring scale which is vertically arranged is fixed on the outer side of the second measuring port; and the platinum probe in the second measuring port measures the position ...

Drawing method of multi-lane disease distribution diagram, medium and system

The invention discloses a drawing method of a multi-lane disease distribution diagram, a medium and a system. The drawing method comprises the following steps: acquiring a first multi-lane pavement image in front of a detection vehicle through a camera mounted on the detection vehicle every preset distance; processing the first multi-lane pavement image through an inverse perspective transformation method to obtain a second multi-lane pavement image; marking an effective image area in the second multi-lane pavement image to obtain a third multi-lane pavement image; sequentially inputting two third multi-lane pavement images which are arranged at intervals into the convolutional neural network, and outputting a state transition relation between pixel values of each row of pixel points of the effective image area of the middle third multi-lane pavement image; processing the third multi-lane pavement image through a Kalman filtering method to obtain a fourth multi-lane pavement image; and ...

Power socket

... 本实用新型公开了一种电源插座，包括插座体和插座盖，插座体的一端与插座盖的一端通过销轴相连，插座盖的另一端设有扣合凸块，在插座体的另一端设有一容纳腔，在容纳腔内设有两相对设置的夹持机构，所述夹持机构包括第一滑块和第二滑块，第一滑块与第二滑块之间通过弹簧相连，在弹簧下方的容纳腔内设有一转轴，转轴上设有转轮和辊轴，在转轮上沿圆周设有阿拉伯数字，转轮的一侧穿过容纳腔伸至插座体的外侧。辊轴上设有一与第二滑块相配合的缺口，两夹持机构的两第二滑块相对设置，在容纳腔上方设有一封闭板。本实用新型采用上述方案，结构设计合理，避免儿童触碰到插孔，操作方便，给生活带来了便利，消除了安全隐患。 ...

Laboratory sample sorting system

The invention discloses a laboratory sample sorting system which comprises a plurality of container carriers, a barcode device, a sorting device, a transportation platform and an analysis platform, the transportation platform comprises a plurality of transportation lines and transportation equipment, the container carriers are arranged on the transportation equipment, and the sorting device is used for moving the container carriers on the current transportation line to other transportation lines. The analysis platform is used for analyzing the sample, the device further comprises a weight sensor, a limiting switch, a conversion module, a detection module, an analysis module, a transportation module, an early warning module and a reset module, and the weight sensor is used for detecting whether the container carrier has articles or not.

Appliance for controlling estrus synchronization of sows and use method

The invention discloses an appliance for controlling estrus synchronization of sows and a use method, the appliance comprises an injection tube, a medicament absorption sponge, a hollow push rod and a take-out line, the injection tube comprises a tube body and a hollow fixing head, and the tube body and the hollow fixing head at the head of the tube body are connected into a whole; the periphery of the hollow fixing head is of a spiral structure. The medicament absorbing sponge is filled in the tube body; strip-shaped bulges are arranged on the periphery of the medicament absorbing sponge; the hollow push rod is inserted into the injection pipe from the tail part of the injection pipe; one end of the take-out line is fixedly connected with the medicament absorption sponge, and the other end penetrates through the hollow push rod and extends out of the hollow push rod. According to the invention, a good use effect is guaranteed, the dosage can be reduced, the cost is low, and the operation ...

Heterogeneous redundant backboard and device, communication method, storage medium and electronic equipment

The invention relates to the technical field of data architecture, in particular to a heterogeneous redundant backboard and method, a storage medium and electronic equipment, and the heterogeneous redundant backboard comprises a first independent main control board bit, a second independent main control board bit and N independent slave control board bits, wherein the first independent main control board position and the second independent main control board position are in communication connection and have the same function, and the first independent main control board position and the second independent main control board position are respectively in communication connection with each independent slave control board position. And the first independent main control board position and the second independent main control board position are respectively connected with the N independent slave control board positions through buses. According to the invention, dual-independent system heterogeneous ...

Device convenient for observing influence of light source irradiation on crop seedling stage physiological characteristics

The utility model provides a device convenient for observing the influence of irradiation of a light source on physiological characteristics of crops in a seedling stage in the technical field of agricultural planting, which comprises a transparent observation box body, a circulating water seat fixed in the observation box body, a water tank arranged on the circulating water seat, and a material placing step arranged on the inner wall of the observation box body above the circulating water seat, the observation box body is provided with a transparent planting box body with a planting cavity through a material placing step, a planting panel is arranged on the upper side of the planting box body, a plurality of planting holes allowing crop seedlings to be inserted are distributed in the planting panel, a plurality of circulating water columns are distributed on the lower side of the planting box body, and the downward-extending ends of the circulating water columns are inserted into the water ...

Flexible clamping device for plant stalks and control method

The invention belongs to the technical field of plant clamping devices, and discloses a plant stalk flexible clamping device and a control method, an air compressor is connected with an inlet of an electromagnetic pneumatic reversing valve through a pipeline, two outlets of the electromagnetic pneumatic reversing valve are connected with two gas inlets of a double-acting cylinder, and the action direction of the double-acting cylinder is controlled; the double-acting cylinder is connected with the cylinder stroke block to control the push rod to achieve the purpose of controlling the tightness of the clamping part; when the double-acting air cylinder moves reversely, after a section of idle stroke, the cylinder stroke block box pulls the pulling plate to move away from the clamping part, and the clamping part converts linear propelling movement from the push rod into transverse clamping and loosening movement of the clamping part through the inclined sliding groove. The clamping part can ...

Inversion method of real space moire stripes

According to the real space moire stripe inversion method provided by the invention, the moire region can be obtained by utilizing a binary image of the moire region and inversion of a test piece gate crystal face and a reference gate crystal orientation obtained after analysis of the moire region, the moire region parameters are verified, and other parameters of the moire region are further calculated; the method is extension of a TEM moire inversion method. According to the method, other parameters existing in the moire area can be calculated while the parameters of the moire area by the TEM moire inversion method are verified, the method is rich in a full-field measurement method for the moire area, and the method is a development of a parameter calculation method for newly generated small crystal grains in the field of optical measurement mechanics.

Simulation evaluation method for delamination damage performance in crown of truck radial tire

The invention relates to the technical field of tire performance evaluation, in particular to a simulation evaluation method for delamination damage performance in a crown of a truck radial tire. The method comprises the following steps of tire static loading simulation analysis and calculation, determination of crown delamination simulation indexes, calculation of simulation index shear strain amplitudes and comparison of multi-scheme simulation evaluation indexes. The rubber material in the crown middle position repeatedly generates shear deformation due to the shear action, which is a mechanical reason of delamination damage to the crown middle of the tire, so that the LE13 shear strain amplitude of the rubber material adjacent to the outermost belted layer in the crown center position of the truck radial tire is used as an evaluation index; according to the multi-scheme tire static loading simulation calculation, the scheme with the minimum LE13 amplitude at the center position of a ...

Accurate positioning auxiliary device of hydraulic punching machine

The invention discloses an accurate positioning auxiliary device for a hydraulic punching machine, which comprises a left stainless steel universal pipe and a right stainless steel universal pipe which are welded on a base of the hydraulic punching machine, the end parts of the left stainless steel universal pipe and the right stainless steel universal pipe are respectively provided with a linear laser, and power supply circuits of the linear lasers are arranged in the universal pipes; during working, laser emitted by the linear laser is a sector and is projected on a plane to form a straight line; the two linear lasers are placed in a certain included angle in the horizontal direction, the projection is represented as a cross line on the plane, and the two linear lasers are adjusted to be vertical projection. The device is convenient to operate and accurate in positioning.

Electric line buffer stop

... 本实用新型涉及输配电线路的技术领域，尤其是一种输配电线路防撞装置。其主要由防撞墩、设置在防撞墩内侧的防撞机构、立柱、限位杆、测高探头、反光灯、摄像探头和反光带组成；立柱平行插设在防撞墩上，限位杆连接在立柱之间，摄像探头固定设置在立柱的内侧，测高探头设置在限位杆上，反光灯设置在测高探头的两侧，反光带设置在测高探头的上部；防撞机构主要由防撞转轮、固定轴和防撞槽口组成，防撞槽口设置在防撞墩的对应内侧，固定轴固定连接在防撞槽口上，防撞转轮活动套设在固定轴上。该装置可以利用防撞机构有效的缓解防撞墩的破坏，可以利用限位杆上的摩擦层有效的保护限位杆不受到破坏，减少维修成本，提高输配电线路的防撞效果。 ...

Anti-icing structure of rectification support plate for multi-turbulent-flow enhanced heat exchange

The invention provides a multi-turbulent-flow enhanced heat exchange rectification support plate anti-icing structure which comprises a front cavity and a rear cavity divided by a partition plate in a rectification support plate, and a plurality of hot air flow dividing holes communicating with the front cavity and the rear cavity are formed in the top of the partition plate. A plurality of small-size turbulent flow columns extend in the chord length direction at the front edge stationary point of the front cavity and are distributed at intervals in the radial direction; a plurality of spoilers which are distributed in the radial direction extend on the partition plate in the front edge direction, and the spoilers divide the front cavity into a plurality of areas in the radial direction; a plurality of large-size turbulent flow columns are arranged in the area between the middle rear portion of the front cavity and the partition plate in the radial direction, and the normal directions of ...

Balance function training device

The invention relates to a balance function training device which comprises a base, a force measuring table is arranged on the base, a swing rod is arranged at the front end of the base, a foot fixing structure is arranged on the force measuring table, a limb fixing structure is arranged on the swing rod, an elastic assembly is arranged on the swing rod in series, and the elastic assembly comprises an elastic piece with the axis extending in the vertical direction. A fixing sleeve is arranged on the periphery of the elastic piece, an adjusting sleeve capable of moving up and down for adjustment is arranged in the fixing sleeve, and the adjusting sleeve is provided with an inner hole wall used for being in contact fit with the periphery of the elastic piece. The invention provides a balance function training device which can act along with a patient so as to carry out balance ability training on the patient.

Dust collecting device with filtering structure

The invention discloses a dust collecting device with a filtering structure, which comprises a collecting barrel, the collecting barrel is provided with a barrel-shaped structure and a support frame arranged at the bottom of the collecting barrel, the top of the collecting barrel is fixedly connected with a driving motor, the position of the outer side of the collecting barrel close to the bottom is communicated with an air inlet pipe, and the air inlet pipe is communicated with an air outlet pipe. The bottom of the collecting barrel is communicated with a discharging pipe, and the position, close to the top, of the outer side of the collecting barrel is communicated with an exhaust pipe; the communicating pipe is of a tubular structure, the water suction pump is arranged at the bottom of the communicating pipe, and the communicating pipe is arranged in the collecting barrel; the invention discloses a filtering device which is used for filtering dust in gas, and relates to the technical ...

Storage device for 3D printing metal powder

The invention discloses a 3D printing metal powder storage device which comprises a processing support and a storage tower, the processing support is arranged on the storage tower, a quantitative feeding structure and a gas protection structure are installed on the processing support, and a retention monitoring structure, a vibration stirring structure and a preheating structure are installed on the inner side of the storage tower; the metal powder storage device has the beneficial effects that metal powder is drained to the inner side of the storage tower through the quantitative feeding structure, the metal powder on the inner side of the storage tower is vibrated and flattened through the vibration stirring structure, the height of the inner side of the storage tower is detected through the fixed monitoring structure for the metal powder, and meanwhile heating and storage are separated through the preheating structure; and meanwhile, heat between the partitions is drained to the outer ...

Rooting device with hoisting and temporary fixing functions and use method thereof

The invention discloses a rooting device with hoisting and temporary fixing functions and a using method thereof.The rooting device comprises a support outer frame, a suspender assembly and buckle assemblies, the support outer frame is detachably hung at the bottom end of a truss girder and is clamped to the bottom end of the truss girder through the two buckle assemblies, and the suspender assembly is arranged on the support outer frame; the suspender assembly is telescopically arranged at the bottom of the support outer frame, a lifting ring is integrally arranged at the bottom end of the suspender assembly, and a safety belt or lifting equipment is detachably installed through the lifting ring; the bracket outer frame comprises a first frame, a second frame and a first elastic element; the suspender assembly comprises a suspender, a suspender connecting piece, a first pull rod and a second pull rod. The rooting device replaces traditional large hoisting equipment for transferring, the ...

Numerical control grinding machine tool for camshaft

The invention belongs to the technical field of camshaft machining equipment, and particularly relates to a camshaft numerical control grinding machine tool which comprises a machine tool body, a sliding block A is slidably connected to a sliding rail A welded to the left portion of the front side of the upper surface of the machine tool body, and a motor A is installed on the upper surface of the sliding block A. A left clamping mechanism is fixedly connected to an output shaft of the motor A. A right jacking mechanism is fixedly connected to the right side of the upper surface of the machine tool body. A sliding block C is connected to a sliding rail B welded to the rear side of the upper surface of the machine body in a sliding mode, a motor B is installed on the upper portion of the front side face of the sliding block C, an output shaft of the motor B is fixedly connected with a grinding wheel, a groove is formed in the upper surface of the machine body, and a water tank and a waste ...

Distribution lines overhauls ground wire earthing terminal

... 本实用新型涉及一种配电线路检修地线接地端，包括接地桩柱，所述接地桩柱的上端设置接线块，接地桩柱的下端为接地尖端，所述接线块的两侧对称设置侧槽口，接线块的上端面设置带螺纹的连接孔，所述连接孔内连接拧接块，所述拧接块的下端面设置接线上半槽。本实用新型接地牢固可靠，且具有多个接地端点，可同时满足多条线路的接地操作，安全可靠。 ...

Turbofan engine composite anti-icing system with vertical lifting power device

The invention belongs to the field of aero-engine design, and relates to a turbofan engine composite anti-icing system with a vertical take-off and landing power device, which comprises an anti-icing air entraining header pipe, a first air entraining branch pipe, a second air entraining branch pipe, a first anti-icing system and a second anti-icing system, when the vertical lifting power device and the inlet rectifying support plate encounter airflow containing liquid supercooled water, the main engine works, the high-pressure compressor generates high-temperature and high-pressure air, and the high-temperature and high-pressure air enters the anti-icing air-entraining main pipe through the air-entraining holes and then enters the first air-entraining branch pipe and the second air-entraining branch pipe to form anti-icing hot air; high-temperature and high-pressure air in the first air entraining branch pipe flows to an anti-icing heat transfer structure in the vertical lifting power device ...

Stroke order trainer and method for realizing stroke order training writing

The invention discloses a stroke order trainer which comprises characters and a touch and talk pen. A plurality of hidden code characters are steganographically written in each stroke of the character, and a hidden code recognition device is arranged in the touch and talk pen. The hidden code recognition device is composed of a circuit board and an optical element. The optical element is arranged in a pen point of the touch and talk pen; the circuit board is installed in a penholder of the touch and talk pen. The circuit board is provided with a microprocessor which is used for carrying out logical operation processing on hidden code characters read by the optical element and a sound production unit which is driven by the microprocessor to give out a prompt tone. The circuit board is connected with a storage battery. When the touch and talk pen is used for writing, whether a plurality of hidden code characters steganographically written in character strokes are continuous characters or ...

Moving small target event stream segmentation method based on multi-scale point cloud feature fusion

The invention discloses a moving small target event stream segmentation method based on multi-scale point cloud feature fusion, which is applied to dynamic visual sensor data processing and comprises the following steps: segmenting event stream data into event point clouds; carrying out farthest point sampling, feature learning and splicing processing on the event point cloud to obtain a first local feature; performing feature enhancement on the first local feature by adopting a point cloud self-attention mechanism to form a second local feature; performing down-sampling based on fusion weight on the second local features, performing feature learning in a multi-layer perceptron, performing splicing, and performing integrated feature learning to form global features; and after continuous interpolation up-sampling is carried out on the features and the event point cloud, multi-layer mixed features are obtained through jump linking, maximum pooling operation is carried out on the multi-layer ...

Abrasive gas jet plant stalk cutting test system and method

The invention belongs to the technical field of plant stalk cutting tests, and discloses an abrasive gas jet plant stalk cutting test system and method. An airflow configuration and conveying module is used for configuring airflow and an abrasive; the nozzle track module is used for driving a nozzle to move and spray gas abrasive particle jet beams by utilizing a three-axis gantry type sliding table track; the clamping module is used for clamping plant stalks needing to be cut; the abrasive collecting module is used for collecting the sprayed abrasive; and the high-speed camera measurement module is used for collecting and detecting test data. High-pressure gas carrying water and grinding materials is adopted as a cutting flow beam, non-contact cutting operation of plant stalks is achieved, a plant vibration excitation source is cut off, an airflow configuration conveying module, a nozzle track module, a clamping module, a grinding material collecting module and a high-speed camera measuring ...

Video-broadcast linkage emergency event handling system

The invention relates to the technical field of video-broadcast linkage, and discloses a video-broadcast linkage emergency event handling system, which comprises a terminal server, and is characterized in that the terminal server comprises a processing unit, an alarm unit and a data storage library; the receiving end of the terminal server is in signal connection with the output end of the processing unit, and the receiving end of the data storage library is in signal connection with the output end of the terminal server. Through the alarm unit, real-time detection can be carried out in the video-broadcast linkage process, emergency events can be observed in time, meanwhile, the two monitoring modules are arranged and divided into manual monitoring and computer monitoring, the monitoring effect can be better, the emergency events can be rapidly processed through the processing unit, the influence of the emergency events is reduced to the minimum, and the efficiency is improved. The real-time ...

Chopped fiber laying robot based on double-arm cooperation and laying method

The invention discloses a chopped fiber laying robot based on double-arm cooperation and a laying method.The chopped fiber laying robot comprises a posture adjusting mechanical arm, a fiber chopping device, a picking mechanical arm and a picking and laying device installed at the tail end of the picking mechanical arm, and the picking and laying device comprises a picking base, a telescopic device and a picking head with a heating function; during fiber placement, firstly, a core model is modeled and gridded, a fiber placement path and control points are planned based on gridding, and each control point corresponds to one fiber sheet; the pose of the core mold is adjusted through a pose adjusting mechanical arm, so that all the control points expected to be laid are located at the same pose; and the picking mechanical arm is used for driving the picking and laying device to pick the fiber sheets chopped by the fiber chopping device and lay the fiber sheets on the control points. The pose ...

Miniature sounding toy gun

The utility model discloses a miniature sounding toy gun, and relates to the technical field of toy guns, the toy gun is of a gun-shaped structure and comprises a gun body, a trigger wrench and a piezoelectric electronic piece, the trigger wrench is located at the trigger position of the gun body, the piezoelectric electronic piece is embedded in the rear end of the gun body, and the trigger wrench is located at the trigger position of the gun body. And the piezoelectric electronic piece is in contact with the trigger wrench. The toy gun is simple in structure, small and exquisite in shape and convenient to carry; parts in the gun body are few, and assembling and disassembling are convenient.

Transition cabin suitable for vacuum pipeline

The invention provides a transition cabin suitable for a vacuum pipeline. The transition cabin comprises multiple sections of vacuum pipe beams, a telescopic device, a supporting structure, a first valve device and a second valve device. The multiple sections of vacuum tube beams are fixed to the top end of the supporting structure and are mutually spliced through telescopic devices to form a communicated transition cabin body, at least one section of vacuum tube beam is provided with an air inlet valve, and at least one section of vacuum tube beam is connected with a vacuum pump through a vacuum pump connector; the first valve device is arranged at the first end of the transition cabin body and used for controlling connection and disconnection between the transition cabin body and the atmospheric environment. The second valve device is arranged at the second end of the transition cabin body, connected with the vacuum pipeline and used for controlling connection and disconnection of the ...

Water supply method and drip irrigation system performance test platform

The invention provides a water supply method and a drip irrigation system performance test platform, and the method comprises the steps: obtaining a to-be-tested demand of a target object and basic parameters of a variable frequency water pump; determining a target water pressure form type based on the to-be-tested demand; determining a target test parameter based on the target water pressure form type; generating a target water pressure curve based on the target test parameters and basic parameters of the variable frequency water pump; controlling the variable-frequency water pump to supply water to the target object according to the target water pressure curve. Different target water pressure curves are generated according to to-be-tested requirements, and the variable frequency water pump is controlled to supply water to the target object according to the target water pressure curves, so that the anti-clogging performance of the drip irrigation system and the drip irrigation tape/pipe ...