雾化眼罩（E06打印1）

用于手机的车辆管理图形用户界面

Display device that japanese teaching used

... 一种日语教学用的展示装置，其包括至少一个展示平板以及一个展示装置，所述展示装置包括一个基座元件以及一个盖体元件，所述盖体元件轴连接于所述基座元件，所述展示平板可调节地设置于所述盖体元件，在使用所述日语教学用的展示装置时，调节所述盖体元件与所述基座元件使所述盖体元件垂直于所述基座元件，此时，所述展示平板能够由所述盖体元件支撑以展示日语知识，在没有使用所述日语教学用的展示装置时，各个所述展示平板存储在形成于所述基座元件和所述盖体元件之间的一个容纳腔内，从而方便携带。 ...

Detachable, replaceable and washable flat plate sleeve

The utility model is applicable to the technical field of flat plate sleeves, and provides a detachable, replaceable and washable flat plate sleeve which comprises a flat plate sleeve upper cover and a flat plate sleeve lower body, and the bottom of the flat plate sleeve upper cover is provided with a first connecting groove with the middle section as the symmetric center and the left section and the right section as the symmetric center respectively. The upper part and the lower part of the flat plate sleeve are effectively connected together, so that the condition that the whole device needs to be replaced after parts are lost is effectively reduced; due to the fact that the pen box for storing the touch control pen is arranged, the touch control pen can be stored conveniently, the loss probability of the touch control pen is reduced, and economic property loss is reduced. According to the wiping panel provided with the wiping cloth, the wiping cloth can be placed in the wiping panel, ...

Three-dimensional active porous carbon as well as preparation method and application thereof

The invention discloses three-dimensional active porous carbon and a preparation method and application thereof, the three-dimensional active porous carbon is an N, O and S co-doped porous carbon material and is loaded with active metal elements, the interior of the three-dimensional active porous carbon is provided with a three-dimensional network pore structure, the specific surface area is 647.55-1972.19 m < 2 >/g, the pore volume is 0.391-1.355 cm < 3 >/g, the pore structure comprises micropores, mesopores and macropores, and the average pore size of the micropores and mesopores is 3-5nm. The preparation method comprises the following steps: dissolving gelatin serving as a carbon source and metal salt serving as a template in water, and carrying out heating foaming, pre-carbonization, carbonization, activation and etching to obtain the three-dimensional active porous carbon material. The prepared three-dimensional active porous carbon material has high specific surface area, strong ...

Gene terminator query method, device and equipment and readable storage medium

The invention provides a gene terminator query method, device and equipment and a readable storage medium, when an efficient terminator sequence of any species needs to be determined, a genome file and a genome annotation file of a target organism or a high-throughput data file of the target organism can be obtained; the method comprises the following steps of: acquiring a plurality of files which can feed back an efficient terminator sequence of a target organism, so that the terminator sequence of the target organism can be generated according to a genome file and a genome annotation file or a high-throughput data file of the target organism after the plurality of files are acquired; and based on the terminator sequence of the target organism, determining an efficient terminator sequence of the target organism. Therefore, the efficient terminator sequence of the corresponding species can be accurately searched for according to the genome file and the genome annotation file of any species ...

Four-rotor aircraft control method based on sliding mode self-adaption and interference compensation

The invention provides a method for realizing stable attitude tracking control of the four-rotor aircraft by directly measuring the pitch angle and the yaw angle of the four-rotor aircraft through an installation angle gyroscope. By designing a third-order nonlinear pitch and yaw differential observer, first-order and second-order approximate differential signals of errors of a pitch angle and a yaw angle are solved. Secondly, nonlinear transformation is carried out on the pitch angle and yaw angle errors, first-order and second-order approximate differential signals are superposed to obtain pitch and yaw nonlinear sliding mode signals, and then total interference compensation is carried out from three angles of constant interference, angle error interference and first-order approximate differential interference through an adaptive method; and finally, a sliding mode compensation controller of the pitching and yawing channel is formed and is transmitted to a rudder system of the four-rotor ...

混合入光式背光模组及液晶显示装置

... 本发明公开一种混合入光式背光模组及液晶显示装置，其中，所述混合入光式背光模组包括背板和导光板，所述背板包括底板及自底板的周缘朝一侧延伸的侧板；所述导光板间隔设置在底板上方，且围设于侧板内；所述底板的内侧面设有底背光源，所述侧板的内侧面设有侧背光源。通过侧入式和直下式的结合可以增加背光模组的背光源来源，从而可以增大背光模组的亮度的最大阀值，即可以使背光模组输出更高的亮度，从而可以提高液晶显示装置屏幕的最大亮度。而液晶显示装置屏幕的最大亮度的提高，可以使液晶显示装置获得更高的对比度，从而可以获得更多的动态变化的背光效果，从而更好的呈现HDR。 ...

Simulated vacuum drying device for fresh Chinese wolfberry fruits and use method of simulated vacuum drying device

The invention discloses a simulated vacuum drying device for fresh Chinese wolfberry fruits and a using method thereof.The device mainly comprises a drying storage tank, multiple sets of electromagnetic heating modules are distributed on the outer side of the drying storage tank in an array mode, the outer side of the drying storage tank is connected with a heat insulation protective cover through an annular supporting assembly, and a sealing pumping end cover is arranged at the top end of the drying storage tank; a drying bearing tray is arranged on the inner side of the drying storage tank, a pumping pressure drive is arranged on one side of the heat insulation protective cover and connected with a sealing pumping pressure end cover through a pipeline, a manual control panel is arranged on the other side of the heat insulation protective cover and connected with the electromagnetic heating module and the pumping pressure drive through cables, and the electromagnetic heating module is ...

Multi-target tracking method fusing spatial motion and apparent feature learning

The invention discloses a multi-target tracking method fusing spatial motion and apparent feature learning, which comprises the following steps: firstly, converting a video into a frame sequence, then performing feature extraction on all frame images by using a convolutional neural network, and obtaining target detection tracks of all targets by using a target detector according to moving target features; the target detection tracks of all the targets are verified, and predicted positions are obtained according to the target detection tracks; and carrying out position coincidence calculation on the size of a detection frame by utilizing the predicted position and the target detection track, judging whether shielding occurs or not, and if shielding occurs, replacing the position of the target detection frame of the target detection track with the position of the predicted target detection frame, and outputting a final detection track of the moving target. And finally obtaining a final detection ...

MULTI-ANGULAR AUTOMATIC POLISHING SYSTEM AND POLISHING METHOD THEREOF

Disclosed is a multi-angular automatic polishing system, comprising an operating board, a clamping device (300), a polishing device and a control device. The clamping device comprises a clamping component for clamping materials, a lateral driving device (302) for driving the clamping component to move laterally in the plane where the operating board is on, a translation driving device (303) for driving the clamping component into a translational motion on the plane where the operating board is on, and a rotation driving device for driving the clamping component to rotate laterally on the plane where the operation platform is on; the clamping component also has a rotation device and a spin driving device for driving the rotation device to rotate. The polishing device comprises a polishing component and a polishing driving device (400) for driving the polishing component to operate. The control device is connected to the lateral driving device, the rotation driving device, the spin driving ...

Prepositioning light spot adjustable phototherapy instrument

The invention provides a prepositioning light spot adjustable phototherapy instrument. The phototherapy instrument comprises a phototherapy instrument main body used for emitting treatment light and a shading structure used for controlling light spots of the treatment light. The phototherapy instrument is configured to have the following two mutually convertible forms: in the first form, the shading structure and the phototherapy instrument main body are only partially pre-connected; and in the second form, the shading structure is completely connected with the phototherapy instrument main body. According to the prepositioning light spot adjustable phototherapy instrument provided by the invention, the adjustable shading window of the shading structure can be easily adjusted to be consistent with an affected part in size. Before irradiation, an operator not only can realize convenient observation, but also can realize single-hand operation, and can be quickly aligned to an affected part ...

Display panel, manufacturing method thereof and display device

The invention discloses a display panel, a manufacturing method thereof and a display device, and relates to the technical field of display, the display panel comprises a plurality of pixel areas and non-pixel areas at least located between two adjacent pixel areas; the display panel further comprises a substrate; the pixel definition layer is located on one side of the substrate and comprises a pixel definition structure located in a non-pixel area and an opening located in a pixel area; the blocking part is arranged on one side, far away from the substrate, of the pixel defining structure; the light-emitting device layer comprises an organic common layer, and the organic common layer is located on the side, away from the substrate, of the blocking part; the blocking part comprises at least one protruding part, the protruding part comprises a first bottom face close to the substrate, a first side wall and a second side wall, the first side wall and the second side wall are opposite, the ...

GRAFT MODIFICATION METHOD OF RICE STRAW FIBERS

The present invention relates to a thermoplastic polymer preparation process using rice straw graft polyethylene glycol (PEG). Pulverized and pretreated rice straw powder is firstly reacted with diisocyanate for 60 min under ultrasonic-microwave synergy, then a certain proportion of PEG is added, followed by a 70 min reaction, and the rice straw/PEG graft polymer is prepared. The advantages of the present invention are that in the overall process of the rice straw fiber pretreatment and grafting reaction, an efficient green ultrasonic-microwave synergy technique is used, which improves the accessibility of the rice straw fiber modification reaction and the effect of the graft modification reaction; and PEG is grafted onto the rice straw fibers through the bridging of diisocyanate, which greatly improves the thermal properties of rice straw fibers, and endows the rice straw with thermoplasticity. The modified rice straw fibers can be prepared into a self-reinforced composite material by ...

FEEDBACK GLOVE FOR VIRTUAL REALITY

Disclosed is a feedback glove for virtual reality, the feedback glove comprising: an exoskeleton glove, connecting rod mechanisms, finger sleeves and driving mechanisms. The exoskeleton glove is used for being sheathed on a forearm. The connecting rod mechanisms are rotatably connected to the exoskeleton glove, and the connecting rod mechanisms are further rotatably connected to the finger sleeves. The driving mechanisms are in transmission connection with the connecting rod mechanisms, and the driving mechanisms are used for driving the connecting rod mechanisms. With regard to the feedback glove for virtual reality, connecting rod mechanisms are additionally provided, and an exoskeleton glove is transferred from the back of a hand to a forearm, namely, supporting points of the exoskeleton glove on the back of a hand are transferred to the forearm, so that the degree of freedom of the finger sleeves satisfies the degree of freedom of fingers themselves, thereby improving the product performance ...

FORCE CONTROL GLOVES FOR VIRTUAL REALITY AND TENSION MECHANISM THEREOF

The present invention relates to a pair of force control gloves for virtual reality and a tension mechanism thereof. The tension mechanism comprises a position output mechanism, a traction part, an oil storage cabin, a slide block, an oil cylinder, an oil tube, and a piston rod. The slide block is slidably provided in the oil storage cabin, and the slide block is hermetically matched with the oil storage cabin. The oil cylinder is communicated with the oil storage cabin by means of the oil pipe. The piston rod is movably provided in the oil cylinder, a piston head hermetically matched with the oil cylinder is provided at one end of the piston rod, and the other end of the piston rod is transmittingly connected to a finger sleeve. According to the tension mechanism of the force control gloves for virtual reality, when the position output mechanism rotates and winds the traction part, the tension part drives the slide block in the oil storage block to move, the slide block pumps hydraulic ...

Absolute detection method for plane surface shape of large-aperture optical element

The invention relates to the technical field of optical element plane surface shape detection, and discloses a large-aperture optical element plane surface shape absolute detection method, according to the detection method, only two optical flats are needed, after mutual detection is carried out for four times, surface shape distribution of a detected mirror can be calculated through data processing, the optical flats do not need to be rotated in the whole detection process, and the detection efficiency is improved. The measuring method is simple and easy to operate, is an effective plane absolute detection method, and can independently extract the intermediate-frequency surface shape information of the optical element so as to guide the ultra-smooth surface processing of the standard lens.

Complex scene task-oriented space manipulator grabbing sensing method

The invention discloses a complex scene task-oriented space manipulator grabbing sensing method, which comprises the following steps of: shooting an out-cabin operation scene area image through an out-cabin operation monitoring camera at a long distance, and detecting whether a target exists or not through a BP (Back Propagation) neural network by utilizing gray level distribution characteristics of the image to obtain an effective target area where the target is located; in the approaching process, through a lightweight deep convolution detection identification network, continuously carrying out target identification classification and position calculation to obtain an effective target area set after identification classification; the method comprises the following steps of: performing semantic segmentation on a target by adopting a lightweight segmentation convolutional network through observation images of multiple angles of a camera in a short distance, finding out areas of the target ...

Mining locomotive explosion-proof box and using method thereof

The invention discloses a mining locomotive anti-explosion box and a using method thereof, and relates to the technical field of mining anti-explosion, the mining locomotive anti-explosion box comprises an anti-explosion box body, a heat exchanger and an air pressure sensor, one side of the anti-explosion box body is provided with a sealing door through a hinge piece, and the outer wall of one end of the sealing door is provided with a control panel; a temperature sensor is installed below the control panel, and a locking piece is installed on the inner wall of the sealing door. A handle is held by a hand to reciprocate up and down, an arc-shaped piece drives a pull rod to circularly move up and down at the same time, a piston repeatedly inflates in an inflation device, then air is pumped into a sealed air bag through an air pipe, a one-way valve prevents the air from flowing back, and the sealed air bag expands to fill a gap between a first sealing groove and a second sealing groove. The ...

Method for analyzing and optimizing thermoelasticity of functionally graded material

The invention discloses a functionally graded material thermoelasticity analysis optimization method, which comprises the following steps: constructing a functionally graded material entity model, and determining material attributes and geometric dimensions; the method comprises the following steps: determining a thermoelastic physical equation, a thermoelastic control equation and temperature and mechanical load boundary conditions of a functionally graded material according to material attributes and geometric dimensions, and selecting grid spacing meeting the calculation precision requirement based on a PDDO theory non-localized thermoelastic control equation and the temperature and mechanical load boundary conditions; and uniformly dividing the solid model into finite material points, establishing a discrete model and a solving equation set, and implicitly solving a physical field at each finite material point to realize analysis and optimization of the thermal elasticity of the functionally ...

Preparation method and application of LDHs (layered double hydroxides) coated modified artificial wetland substrate

The invention discloses a preparation method and application of an LDHs (layered double hydroxides) coated modified artificial wetland substrate, and belongs to the technical field of wetlands. The preparation method comprises the following steps: screening a natural substrate, then cleaning the screened natural substrate with deionized water, drying the natural substrate in a drying oven, taking out the dried natural substrate, and cooling the dried natural substrate to room temperature for later use; the preparation method comprises the following steps: weighing 15g of a natural matrix cooled to room temperature, putting the natural matrix into a mixed solution containing divalent metal ions and trivalent metal ions under the condition of a water bath at the constant temperature of 80 DEG C, then continuously adding a NaOH solution to keep the pH value at 11-12, and violently stirring; and standing, precipitating and separating to obtain a modified matrix, washing with deionized water ...

Odor treatment device and odor treatment method

The invention discloses an odor treatment device and an odor treatment method. The technical problem that the deodorization effect is poor is solved. The device comprises a first tower body, a second tower body, a first water tank, a second water tank, a first spraying piece, a second spraying piece, an air inlet channel and a strain culture assembly, a supporting disc is arranged in the air inlet channel, supporting frames are hinged to the two sides of the supporting disc respectively, and the supporting disc and the space between the two supporting frames are filled with coconut soil filler; the strain culture assembly can convey cultured bacterial liquid into the coconut soil filler through the drip irrigation assembly, a driving part for controlling the two supporting frames to be close to each other is arranged in the air inlet channel so that the bacterial liquid in the coconut soil filler can be extruded out, and when odor flows through the air inlet channel, the extruded bacterial ...

Crop topping machine based on plant protection unmanned aerial vehicle

The crop topping machine based on the plant protection unmanned aerial vehicle comprises an unmanned aerial vehicle body, a camera is arranged on the outer surface of the front end of the unmanned aerial vehicle body, a rear support and a front support are arranged on the outer surface of the upper end of the unmanned aerial vehicle body, and the rear support is located at the rear end of the front support. A stabilizing wing is arranged on the outer surface of one side of the rear support, a power rotor and a movable mechanism are arranged on the outer wall of the rear support, the power rotor is located on one side of the movable mechanism, a fixed support and an induction mechanism are arranged on the outer wall of the front support, and the fixed support is located on one side of the induction mechanism. A blade is arranged on the outer surface of the lower end of the fixing support. According to the crop topping machine based on the plant protection unmanned aerial vehicle, plant protection ...

COMPLIANT POLISHING SYSTEM

Disclosed is a compliant polishing system, comprising a rack (1), a polishing head (2), a central lead screw (3) and several rolling lead screws (4), wherein the polishing head (2) is rotatably connected to the outer end of the central lead screw (3) and axially positioned on the central lead screw (3), and the central lead screw (3) is connected to the rack (1) in such a way that the central lead screw rotates around its own axis; each rolling lead screw (4) rotates around its own axis and is axially positioned on the rack (1); the rolling lead screws (4) are distributed in the circumferential direction of the central lead screw (3) and are respectively in threaded connection with the central lead screw (3); and the polishing system further comprises a drive mechanism for driving all the rolling lead screws (4) to rotate simultaneously.

Comprehensive evaluation method and device for capacitor voltage transformer

The invention relates to the technical field of electrical detection equipment, in particular to a comprehensive evaluation method and device for a capacitor voltage transformer, and the device comprises a machine shell, a detection mechanism is fixedly mounted in the machine shell, a wiring mechanism is mounted in the machine shell, and the wiring mechanism comprises a mounting frame fixedly mounted in the machine shell. A control mechanism is mounted at the top of the mounting frame, and a storage mechanism is mounted in the mounting frame. According to the invention, through the arrangement of the storage mechanism, a cable used for wiring can be conveniently stored in the detection device, and the connection part of the cable and the power connection plug can be kept in a fixed state when the cable is stretched, so that the phenomenon of damage is reduced, the cable is effectively protected, and the service life of the cable is prolonged. The voltage transformer does not need to be ...

CONTROL SYSTEM AND CONTROL METHOD FOR WIRELESS LAMP

Disclosed are a control system and a control method for a wireless lamp. The control system comprises a wireless module (1) for a wireless pairing connection with a mobile device (a), a power supply module (2) connected between a power source (b) and a light-emitting body (c) and a microprocessor (3) for recognizing a signal input by the wireless module (1) and controlling the enabling or disabling of the power supply module (2). The wireless module (1) and the power supply module (2) are respectively connected to the microprocessor (3). By means of coordination processing by the microprocessor (3) and by using a wireless connection method, a mobile device (a), such as a smart phone or a tablet computer, is combined with the power supply module (2) to form a direct control relationship. When a user holds the mobile device (a) with a hand and enables a corresponding wireless connection function within a sensing range of the wireless module (1), and pairing succeeds, the microprocessor (3 ...

HYDROLYZABLE COPOLYESTER, PREPARATION METHOD THEREFOR, AND APPLICATION THEREOF

Disclosed is a hydrolyzable copolyester. The molecular segment of the copolyester contains a segment of a difficultly hydrolyzable polyester and a segment of an easily hydrolyzable polyester, and the copolyester is a random copolymer or block copolymer composed of the segment of the difficultly hydrolyzable polyester and the segment of the easily hydrolyzable polyester. The copolyester has good strength and toughness, is biodegradable, and can degrade quickly when placed in a natural water environment. Further disclosed is a preparation method for the copolyester, and an application thereof.

Concrete dam real-time monitoring inversion method and system

The invention discloses a concrete dam real-time monitoring inversion method and system, and the method comprises the steps: carrying out the calculation of a mechanical parameter sample set through a finite element model, obtaining a displacement response matrix corresponding to each sample, forming a sample pair set through the displacement response matrix and the mechanical parameter sample set, building a POD-RBF proxy model and an objective function, obtaining an initial extreme point, and carrying out the real-time monitoring inversion of a concrete dam. Taking the initial extreme point or the new extreme point in the previous step as an initial value, performing local optimization by using a Gaussian-Newton method to obtain a new extreme point, substituting the new extreme point into the finite element model, judging whether the obtained single displacement response vector and the actually measured displacement response vector are smaller than a set allowable error or not, and if ...

Full-natural-domain degradable aromatic polyester polymer and preparation method thereof

The invention provides a full-natural-domain degradable polyester polymer which has the following structural formula (I), a glycollic acid unit is randomly embedded into a main chain of a polybutylene terephthalate polymer, x is equal to 2-7, and k is equal to 1-2. The polyester polymer disclosed by the invention keeps mechanical properties comparable to PBT (Polybutylene Terephthalate) so as to meet practical application, and the polyester polymer disclosed by the invention has very excellent degradation performance in land and marine environments, so that the polyester polymer is an ideal product required for solving the problem of plastic pollution in the prior art.

DRIVING ARM WITH MULTIPLE DEGREES OF FREEDOM AND TWIN-ARMED ROBOT USING SAME

Disclosed is a driving arm with multiple degrees of freedom, the driving arm comprising a driving module (1) with a single degree of freedom and several driving modules (2) with dual degrees of freedom, wherein the driving module (1) with a single degree of freedom is connected to the driving modules (2) with dual degrees of freedom located at the innermost side; the driving modules (2) with dual degrees of freedom have two orthogonal rotational degrees of freedom, the first rotational degree of freedom comprising a first driving mechanism used for driving the rotation of the driving module (2), and the second rotational degree of freedom comprising a second driving mechanism for driving the rotation of the driving module (2); the first driving mechanism, of the driving module (2) with dual degrees of freedom which is located at the outside, is provided on the second driving mechanism, of the driving module (2) with dual degrees of freedom which is adjacent thereto and located inside. Also ...

AIRBAG ASSISTED FORCE CONTROL POLISHING SYSTEM

An airbag assisted force control polishing system, comprising a rack (1), a front pressing plate (2), a rear pressing plate (3), and a controller (4). A pneumatic motor (5) is fixed onto a front connection rod (2a) on the front pressing plate (2); a polishing disc (6) is fixed onto an output shaft of the pneumatic motor (5); a first airbag (7) is sleeved and fixed onto the front connection rod (2a); a force sensor (8) is provided between the pneumatic motor (5) and the front connection rod (2a); a driving mechanism for driving the rear pressing plate (3) to axially move is further comprised.

Multi-source data combined geological disaster susceptibility evaluation method

The invention relates to a geological disaster susceptibility evaluation method combined with multi-source data. The geological disaster susceptibility evaluation method comprises the following steps: 1) acquiring surface deformation information based on an SBAS-InSAR technology and identifying geological disasters; 2) dividing evaluation units and analyzing and selecting evaluation factors; and 3) constructing an evaluation model and evaluating the geological disaster susceptibility. According to the method, firstly, the SBAS-InSAR technology is adopted to identify potential geological disaster hidden danger points in a research area, geological disaster cataloguing data are updated, then an SSA-BP model is constructed with 11 evaluation factors as an input layer and whether geological disasters exist or not as an output layer, the weight values of the evaluation factors are skipped from the angle of prediction, the geological disaster susceptibility index of each grid unit is obtained ...

Plant protection unmanned aerial vehicle capable of adjusting pesticide flow and preventing pesticide box vibration

The plant protection unmanned aerial vehicle comprises an unmanned aerial vehicle main body, the outer surface of the lower end of the unmanned aerial vehicle main body is fixedly connected with two side baffles which are symmetrically distributed, an adjusting mechanism is arranged on the outer surface of one side of one side baffle, and the other side baffle is arranged on the outer surface of the other side baffle. A damping base is arranged between the two side baffles, a pesticide box is arranged at the upper end of the damping base, mounting plates are fixedly connected to the outer surfaces of the two sides of the pesticide box, a water pump is arranged in the pesticide box, and a plurality of damping assemblies are arranged between the pesticide box and the side baffles. And supporting frames are fixedly connected to the outer surfaces of the two sides of the unmanned aerial vehicle body. The damping assembly and the damping base are arranged, vibration of the pesticide box is effectively ...

Machining and welding tool for automobile lamp

The invention relates to the technical field of automobile lamp assembly machining, and discloses an automobile lamp machining welding tool which comprises a lower base, a limiting seat is arranged at the upper end of the lower base, a limiting rotating groove is formed in the limiting seat, a rotating table is rotationally arranged in the limiting rotating groove, an upper top seat is arranged over the rotating table, and a lower top seat is arranged over the upper top seat. And one side of the upper top seat is welded to one side of the lower base through a connecting arm, and an ion fan is installed in the middle of the upper top seat. According to the machining welding tool for the automobile lamp, the ion fan structure is designed, on one hand, ion wind is blown to the lamp bead assemblies on the groove wall through the blowing cover, surface static electricity elimination is conducted on the lamp bead assemblies, the production safety is improved, on the other hand, the light-weight ...

Rosewood seed skin moisturizer as well as preparation method and application thereof

The invention provides rosewood seed skin moisturizer as well as a preparation method and application thereof, and belongs to the technical field of skin care products. The preparation method comprises the following steps: under a sterile condition, adding a culture medium into a rosewood seed leaching solution, inoculating a schizophyllum commune seed solution and a ganoderma lucidum mycelium seed solution, fermenting until the logarithmic earlier stage, adding carbon quantum dots, fermenting until the logarithmic middle stage, performing intermittent ultraviolet irradiation until the fermentation is finished, and performing solid-liquid separation, thereby obtaining the rosewood seed extract. The obtained supernate is the rosewood seed skincare lotion. The rosewood seed skin moisturizer is mainly used for preparing skin care products, the obtained rosewood seed skin moisturizer can achieve the anti-wrinkle, anti-acne and whitening effects, rosewood seeds can be more effectively utilized ...

WHITE LED CONSISTING OF THREE PRIMARY COLORS RGB AND APPLICATION THEREOF

A white LED consisting of three primary colors RGB. The white LED comprises a support (10), six metal pads (20) disposed at the bottom of the support (10), R, G and B modules (31, 32, 33) fixed at the bottom of the support (10), and packaging adhesive layers positioned on the R, G and B modules (31, 32, 33). The positive and negative electrodes of the R, G and B modules (31, 32, 33) are electrically connected to the six metal pads (20) one to one so that the R, G and B modules (31, 32, 33) are connected in parallel. The R, G and B modules (31, 32, 33) emit light of corresponding colors, and the light is mixed to generate white light. By using the white LED as a backlight source of a display screen, and a display screen with a wide color gamut can be obtained.

Construction method of in-orbit space faint target tracking parallel acceleration computing architecture

The invention provides a construction method of an in-orbit space dark and weak target tracking parallel acceleration computing architecture, which comprises the following steps of: performing pipeline division on a target state Kalman filtering computing process to obtain a plurality of sub-processes I, determining a sub-process I for parallel computing, and obtaining a merged target state Kalman filtering computing sub-process II; the sub-process II comprises a sub-process I for determining parallel computing; determining the parallelism degree of the sub-process I by taking the minimum calculation period of the merged calculation process as an objective function and the optimal overlapping degree between the sub-processes II as a constraint condition and combining the calculation state and the calculation period of the VPE; the number of VPEs is determined, wherein the VPEs are used for executing calculation operation of row vectors and column vectors of a matrix in the first sub-process ...

ROBOT POSITIONING METHOD AND DEVICE

Provided in the invention are a robot positioning method and a device. The robot positioning method comprises: obtaining current retrieval images; measuring a similarity between the current retrieval images and a hybrid visual laser map; performing cluster matching on the first m frames of images having the highest similarity; when a new cluster category is detected, performing local feature matching on the current retrieval images and the central key frame images of cluster categories corresponding to the current retrieval images; obtaining current poses of a plurality of robots of which the number is equal to the number of the categories according to a local feature matching result; sequencing coincidence scores of current scanning data and the hybrid visual laser map; and when it is detected that a category with the highest score is a new cluster category, updating the pose information corresponding to the central key frame images of the new cluster category to current pose and location ...

Intelligent plant cultivation lighting system

The invention relates to the technical field of plant planting, in particular to an intelligent plant planting lighting system which comprises a battery holder, a mounting seat, power connection springs, a planting production structure and a barrier plate, the power connection springs are mounted on the left side and the right side of the mounting seat, the battery holder is elastically connected to the centers of the power connection springs, and the barrier plate is fixedly connected to the lower end of the mounting seat. The lower end of the barrier plate is fixedly connected with a planting production structure, the planting production structure comprises a planting box part and a humidity adjusting system, the humidity adjusting system is installed in the center of the planting box part in a limiting mode, and the planting box part comprises a first planting module, a bearing connecting frame, a supporting bottom plate and a second planting module; the right side of the first planting ...

CVT abnormal state identification method and device based on group information

The invention relates to a group information-based CVT abnormal state identification method and device, and the method comprises the steps: obtaining historical load data, historical environment parameter data and historical secondary voltage data of each group of CVT under the same bus, and constructing a training sample set and a training target set; obtaining a phase voltage prediction model by adopting a data segmentation and ensemble learning method; utilizing the phase voltage prediction model to predict the secondary phase voltage of each group of CVT under the same bus, and calculating the phase voltage fluctuation rate and the phase voltage deviation degree predicted by the target CVT; and the confidence level of the predicted phase voltage fluctuation ratio and phase voltage deviation degree of the target CVT is calculated by using the statistical characteristics of the voltage fluctuation ratio and phase voltage deviation degree of each group of CVT under the same bus, and the ...

Mining method and isolation air bag structure

The invention provides a mining method and an isolation air bag structure, and relates to the technical field of mining, the mining method provided by the invention comprises the following steps: a mounting step: mounting an isolation air bag on a side rock wall; an inflation step: inflating the isolation air bag; a filling step: filling the stope in the first step; and a mining step: stoping the stope in the second step. According to the method, a free surface or a compensation space can be provided for two-step stoping, the two-step drift stoping difficulty is reduced, the single-cycle footage and blasting effect is improved, blasting damage to filling bodies in adjacent stopes is reduced, the mining efficiency is improved, and the cost is reduced. And the blasting-free rock blasting difficulty of the adjacent drifts is reduced, and the reliability and feasibility of blasting-free tunneling are improved.

Line loss electric quantity monitoring method, device and equipment based on gateway meter current data

The invention discloses a line loss electric quantity monitoring method, device and equipment based on current data of a gateway meter, and the method comprises the steps: obtaining the electric quantity of a main electric meter and a current set of a sub-electric meter, and calculating the theoretical line loss based on the current set of the sub-electric meter; acquiring a sub-ammeter electric quantity set, and calculating statistical line loss based on the main ammeter electric quantity and the sub-ammeter electric quantity set; calculating management line loss based on the statistical line loss and the theoretical line loss; if the management line loss is greater than a preset line loss threshold value, taking the acquisition time of the electric quantity of the main electric meter as monitoring starting time, performing management line loss monitoring from the monitoring starting time until the management line loss is monitored to be less than or equal to the line loss threshold value ...

COORDINATION CONTROL METHOD FOR FACTS DEVICES OF NEW ENERGY DELIVERY SYSTEM

The present invention provides a coordination control method for FACTS devices of a new energy delivery system. The method comprises inner layer control, outer layer control and outermost layer control, priority level of the outermost layer control is higher than that of the outer layer control, and priority level of the outer layer control is higher than that of the inner layer control. The inner layer control can ensure that voltage of a transformer substation can be accurately controlled in a certain value or a certain range, and when the system is in large disturbance, the outer layer control and the outermost layer control can provide urgent reactive power support, so that the voltage of the transformer substation can rapidly recover to an allowed range. Three layers of voltage control are combined so that motions of a plurality of FACTS devices can be coordinated and controlled in a centralized, high accuracy and high efficiency mode, and the engineering adaptability is high.

Yeast capable of producing apple aroma and application of yeast in fermented beverage

The invention discloses a yeast capable of producing apple aroma and application of the yeast in fermented drinks, and relates to the field of microorganisms, the field of biotechnology and the field of foods. The torulaspora delbrueckii obtained by screening and having the preservation number of CCTCCM2022046 is separated from apples, and is preserved in the China Center for Type Culture Collection at January 10, 2022 at present. When the strain is independently fermented, phenethyl acetate with apple-like fruit fragrance, rose fragrance and honey-like base fragrance can be generated; when the torulaspora delbrueckii is mixed with Angel yeast to ferment apple drinks, the content of the representative component phenethyl acetate of apple fragrance in the drinks is also increased along with the increase of the inoculation amount of the torulaspora delbrueckii. The strain provided by the invention can be used as a strain for increasing typical apple flavor for brewing fermented drinks, and ...

Multi-position operating table for clinical operation of urinary surgery

The invention relates to the technical field of urinary surgery operating tables, in particular to a urinary surgery clinical operation multi-body-position operating table which comprises a multi-angle adjusting device used for adjusting body positions, a movable supporting table is arranged on the multi-angle adjusting device, and a leg support is installed on the side portion of the movable supporting table. The movable supporting table further comprises a horizontal moving table installed on the multi-angle adjusting device, a multi-direction moving table capable of automatically moving the body position is installed on the horizontal moving table, a fixed baffle is arranged on one side of the multi-direction moving table, a movable blocking mechanism is arranged on the side, away from the fixed baffle, of the multi-direction moving table, and the fixed baffle and the movable blocking mechanism are used for limiting the body position. According to the invention, manpower can be effectively ...

Broadband power amplifier

According to the broadband power amplifier provided by the invention, a novel output matching network based on an annular structure is adopted, the problem that the output impedance of a transistor changes violently along with the frequency in a broadband working frequency band is solved, and effective matching of the output impedance is realized. An input impedance curve of the output matching network is within a working frequency band range and can fall into a high-efficiency impedance space of a transistor obtained through multiple harmonic source load traction, and effective control over secondary harmonics of the output matching network is achieved. The test result of the embodiment shows that when the input power is 28 dBm, in the frequency band range of 0.3-2.0 GHz, the saturation output power is 39.1-41.8 dBm, the drain efficiency (DE) is between 60.8% and 66.4%, the gain is between 11-13.9 dB, and the relative bandwidth is as high as 147.8%.

Dynamic rail weighbridge fixed ballast bed steel rail fixing device and use method

The invention relates to a dynamic rail weighbridge fixed ballast bed steel rail fixing device and a using method, the dynamic rail weighbridge fixed ballast bed steel rail fixing device comprises an upper inclined iron, a lower inclined iron and a plurality of groups of positioning screw rods, the plurality of groups of positioning screw rods are arranged on two sides of a steel rail, the top surface of the lower inclined iron is a first inclined surface, the bottom surface of the lower inclined iron is a horizontal surface, and the lower inclined iron is provided with two groups of parallel first adjusting through holes; the top surface of the upper inclined iron is a horizontal plane, the bottom surface of the upper inclined iron is a second inclined plane, and two groups of parallel second adjusting through holes are formed in the upper inclined iron, so that the positioning screw can penetrate through the upper inclined iron conveniently; the upper inclined iron is stacked above the ...

Soil and underground water synergistic remediation system

The embodiment of the invention provides a soil and underground water synergistic remediation system, and belongs to the field of environmental governance. The soil and underground water synergistic remediation system comprises a dosing device, an injection well group, a pumping well group and a permeable reactive barrier device, the chemical adding device is used for injecting chemicals into each injection well in the injection well group; each injection well is used for injecting the medicament into a polluted site so as to oxidize and decompose organic pollutants in underground water and soil of the polluted site; the pumping well group is used for pumping out the underground water subjected to oxygenolysis; and the permeable reactive barrier device is used for repairing the underground water subjected to oxygenolysis and infiltrating the repaired underground water back to the aquifer through the injection well group. According to the technical scheme, the problem of pollutant decomposition ...

AUTOMATIC POLISHING SYSTEM AND POLISHING METHOD THEREOF

An automatic polishing system, comprising a workbench (100), a transmitting device, polishing devices (200, 300) and a control device. The transmitting device is provided with a transmitting surface and a transmission drive device driving the transmitting surface to move transversely. Each polishing device is provided with a support part (202, 302), a clamp arm and a clamp (204, 304). Each polishing device is provided with a transverse drive device (208, 308) for driving the support part to move transversely, a longitudinal drive device (209, 309) for driving the support part to move longitudinally, a transverse rotation drive device (210, 310) for driving the clamp arm to rotate along a horizontal direction, a longitudinal rotation drive device (211, 311) for driving the clamp to rotate along a vertical direction and a rotation drive device for driving the clamp to rotate relative to the clamp arm. Each polishing device is further provided with a polishing shaft (206, 306), a polishing ...

Inverter islanding protection detection device and method

The invention discloses an inverter islanding protection detection device and method in the technical field of dust removal. The inverter islanding protection detection device comprises an alternating current sampling circuit, a relay circuit and an inverter outgoing line voltage detection circuit. The alternating current sampling circuit is responsible for collecting parameters such as voltage, current and power of a current power grid in real time, the relay circuit is responsible for disconnecting the power grid at a proper time and simulating power grid faults, and the inverter outgoing line voltage detection circuit is responsible for detecting output voltage of an inverter. As the alternating current acquisition circuit can only acquire the voltage signal of the power grid end, after the relay is disconnected, the power grid end is separated from the output end of the inverter, and at the moment, an independent voltage detection circuit is needed to detect the voltage signal of the ...

Thermal forming die part self-positioning device facilitating discharging

The invention discloses a thermal forming die part self-positioning device facilitating discharging, and relates to the technical field of thermal forming dies, the thermal forming die part self-positioning device comprises a base and an upper die holder, a supporting frame is mounted at the top of the base, and a lower die holder is mounted at the top of the supporting frame; the thermal forming die part self-positioning device convenient to discharge has the beneficial effects that the gear on the top can be driven to rotate through the driving motor, so that the gear drives the movable block to move through the tooth block, the movable frame on the outer side moves, and after the gear rotates to the bottom of the movable block, the movable frame is driven to move. The movable block can slide along the movable frame, the movable block drives the connecting block on one side and the spray head to move, at the moment, a workpiece can be rapidly cooled through cold air sprayed by the spray ...

Unmanned aerial vehicle for agricultural pollination

The utility model discloses an unmanned aerial vehicle for agricultural pollination, which comprises a waterproof casing, a lifting support frame is arranged on the outer surface of the lower end of the waterproof casing, a storage box and a motor box are arranged in the lifting support frame, the storage box is located at the lower end of the motor box, and damping devices are arranged on the periphery of the lifting support frame. Spiral holes and wings are arranged on the outer surface of the periphery of the waterproof casing, the spiral holes are located between the waterproof casing and the wings, hoses and telescopic devices are arranged on the outer surfaces of the lower ends of the wings, the telescopic devices are located on one sides of the hoses, and water outlet devices are arranged on the outer surfaces of the lower ends of the telescopic devices. The vibration feeling generated when the unmanned aerial vehicle lands on the ground is reduced through elastic force of the springs ...

Flat plate sleeve with anti-falling function

The utility model is applicable to the field of tablet personal computer protective sleeves, and provides a tablet personal computer protective sleeve with an anti-falling function, which comprises a side edge anti-falling system and a back anti-falling system which are connected into a whole through a partition plate. The tablet personal computer protective sleeve with the anti-falling function changes the structure of a traditional tablet personal computer protective sleeve, and is simple in structure and convenient to use. Meanwhile, a back anti-falling system and a side edge anti-falling system are used, the air bag is arranged on the back, the cushioning column and the cushioning cavity are arranged on the side edge, impact force generated by falling of the tablet personal computer is effectively relieved, meanwhile, side edge anti-falling and screen anti-falling of the tablet personal computer are both considered, and the safety of the tablet personal computer is protected when the ...

Pavement rolling device for highway pavement construction

The pavement rolling device for highway pavement construction comprises a road roller, a supporting plate is arranged on the inner wall of the road roller, a frame is fixedly connected to the outer wall of the supporting plate, a pressing wheel is arranged on the inner wall of the frame, a protective shell is arranged at the top of the frame, and box bodies are symmetrically arranged at the top of the protective shell; a water storage tank is arranged on the inner wall of the box body, and a water suction pump is arranged on the outer wall of the water storage tank. According to the road surface rolling device for expressway road surface construction disclosed by the invention, when the road surface rolling device for expressway road surface construction is used for construction operation, dust raising can be effectively avoided, and a water suction pump works to convey a water source stored in a water storage tank into a hose; and the hose enables the water source to flow into the atomization ...

Horizontal medium-length hole lateral continuous mining method for gently inclined ore body

The invention provides a horizontal medium-length hole lateral continuous caving mining method for a gently inclined ore body, and relates to the technical field of metal ore mining, which comprises the following steps of: dividing and layering the ore body in the vertical direction; dividing ore blocks in the layering along the trend direction of the ore body; stopes are divided in the ore blocks; along veins along the trend direction of the ore body are arranged in the veins; an ore block accurate mining roadway is tunneled along the vein; a compensation space formed by the accurate mining roadway is utilized, a horizontal medium-length hole parallel to the trend of the compensation space is constructed, and lateral continuous caving is conducted on the first stope; after stoping of the first stope is finished, a filling body isolation device is reserved for filling; a compensation space formed by the reserved filling body isolation device is utilized, a horizontal medium-length hole ...

Unmanned aerial vehicle for agricultural field inspection

The unmanned aerial vehicle comprises an unmanned aerial vehicle main body, a protective cover is arranged on the outer surface of the upper end of the unmanned aerial vehicle main body, propellers are arranged at the four corners of the unmanned aerial vehicle main body, reflective stickers are arranged between the unmanned aerial vehicle main body and the propellers, and night lamps are arranged at the lower ends of the propellers. And a triangular support frame is arranged at the lower end of the propeller. According to the unmanned aerial vehicle for agricultural field inspection disclosed by the utility model, through the arranged triangular support frame, the unmanned aerial vehicle can be prevented from falling to the ground to be damaged due to the fact that the unmanned aerial vehicle does not stop stably when landing in an uneven section, a night inspection lighting environment is provided through the arranged lighting lamp, and through the arranged protective cover, the unmanned ...

Wheat grain quality nondestructive testing method and device, electronic equipment and medium

The invention relates to the technical field of wheat grain detection, in particular to a wheat grain quality nondestructive testing method and device, electronic equipment and a medium, and the wheat grain quality nondestructive testing method comprises the following steps: acquiring first image information which is a hyperspectral image of a to-be-tested sample; correcting the first image information to obtain second image information, extracting a region of interest from the second image information, and obtaining an average spectrum of all pixel points of the region of interest as original spectrum data of the region of interest; and inputting the original spectral data into a pre-trained CNNR nondestructive testing model, wherein the CNNR nondestructive testing model outputs a quality evaluation result of the to-be-tested sample based on the original spectral data. The method can accurately predict the quality of the wheat grains, including the protein and starch content of the wheat ...

Explosion-proof membrane suitable for curved screen of mobile phone

The invention relates to the field of screen protection films, and particularly discloses an explosion-proof film suitable for a curved screen of a mobile phone and a preparation method of the explosion-proof film. The invention discloses an explosion-proof film suitable for a curved screen of a mobile phone. The explosion-proof film comprises a polycarbonate copolymer matrix, an explosion-proof layer, an adhesion layer and a release film which are arranged from top to bottom, wherein the explosion-proof layer comprises polydimethylsiloxane; the preparation method comprises the following steps: S1, laminating the polycarbonate copolymer matrix and the explosion-proof layer through vacuum adsorption, carrying out hot press molding, and then carrying out surface grinding and polishing treatment; s2, the side, away from the polycarbonate copolymer matrix, of the explosion-proof layer is evenly coated with AB glue, and the thickness of an adhesive layer formed by the AB glue is 0.05-0.1 mm; ...

Packaging and transferring mechanism for food processing

The invention relates to the technical field of food processing, packaging and transferring, and solves the problems that mechanical labeling equipment for packaging bags with bottle necks has wrinkles, so that the packaging attractiveness of food is reduced, and the grouped arrangement operation efficiency of packaged food is low. The food processing, packaging and transferring mechanism comprises a drying bin used for food drying and a quantitative limiting device extending in the drying bin in a sliding mode, a filling piece is installed at the right end of the drying bin, and a conveying device used for conveying food downwards is installed at the right end of the filling piece. The conveying device comprises a clamping bin installed at the right end of the filling piece and a labeling assembly installed at the right end of the clamping bin, the labeling assembly comprises a bin piece and a jacking wheel installed in the bin piece, a feeding port is formed in the upper end of the bin ...

Ceramic reinforced titanium-based composite material powder sphere optimization method

The invention discloses a method for optimizing the powder sphericity of a ceramic reinforced titanium-based composite material, which belongs to the technical field of additive manufacturing, and is characterized by comprising the following steps of: a, respectively drying ceramic powder and titanium alloy powder prepared by a plasma rotating electrode method; b, titanium alloy powder and ceramic powder are evenly mixed through an inert gas protection planetary ball mill; and c, the mixed titanium-based composite material powder is spheroidized through a radio frequency plasma spheroidizing machine. The prepared ceramic reinforced titanium-based composite material powder is high in spherical quality and good in flowability, and the printing performance in the additive manufacturing process can be effectively improved.

Method and device for carbon emission management of key industry

The invention discloses a key industry carbon emission management method and device. The key industry information management module carries out field classification and induction, and the industry carbon emission data analysis module carries out analysis and calculation on collected carbon emission data, economic production data and carbon emission time peak value distribution information of key industries. And screening and eliminating enterprises with high energy consumption and low output for average economic output of unit carbon emission of enterprises in different scales and different fields through an industry carbon emission economic output measurement and calculation module, and finally optimizing the enterprises with low unit carbon emission economic output. Therefore, the effect of measuring and calculating the real-time economic output of carbon emission of key industries is achieved, scientific detection is facilitated, the goal of making scientific optimization regulation ...

Eye massager

The invention relates to an eye massager which comprises the components of a glasses frame body which is provided with a physiotherapy cavity for covering eyes of a user; the perspective lenses are arranged on the glasses frame body, and the perspective lenses are connected and matched with the physiotherapy cavities, so that the outside can be observed from the physiotherapy cavities through the perspective lenses; the atomization generation device is provided with a storage bin used for storing medicaments and an atomization spray head, the atomization spray head is in through connection with the storage bin, and a spraying path of the atomization spray head extends to the physiotherapy cavity; the hot compress heating device is arranged in the physical therapy cavity so as to heat the atomized medicament sprayed by the atomizing nozzle; the elastic sealing part is attached to the edge of the physiotherapy cavity so as to be tightly attached to the skin around the eyes of the user. According ...

Distributed photovoltaic power generation shunt management system based on virtual power plant

The invention discloses a distributed photovoltaic power generation shunting management system based on a virtual power plant, relates to the technical field of photovoltaic power generation, and solves the technical problems that electric energy loss is too large and electric energy supply is not timely in the electric energy shunting process due to the fact that an electric energy shunting scheme of an existing virtual power plant cannot reasonably control electric energy storage and electric energy supply. Electric energy redundancy is calculated based on power generation equipment data, whether electric energy of power load equipment is sufficient or not is analyzed based on power consumption equipment data and a power plant coordination model, and electric energy coordinated dispatching is performed in combination with the power plant coordination model; electric energy storage and electric energy scheduling of distributed photovoltaic power generation can be realized, and the utilization ...

Limb rehabilitation device

The invention provides a limb rehabilitation device, which belongs to the technical field of medical instruments and comprises a supporting plate, an upper limb movement assembly, a lower limb movement assembly and a force transmission assembly, the upper limb movement assembly comprises a first supporting frame, and a first opening is formed in the top of the first supporting frame. The first bearing piece is rotationally connected with the first supporting frame through a first rotating shaft. The first end of the second bearing piece is rotationally connected with the second end of the first bearing piece; the lower limb movement assembly comprises a second supporting frame which is fixedly arranged on the supporting plate, and a second opening is formed in the top of the second supporting frame; the first end of the third bearing piece is rotationally connected with the second supporting frame through a second rotating shaft. The first end of the fourth bearing piece is rotationally ...

Method for determining gene expression of single cell subpopulation, related kit and application

The invention provides a peripheral blood sample analysis method and application of reagent components for determining abundance of gene transcripts in preparation of a kit for the peripheral blood sample analysis method. The invention further provides a kit containing the reagent component for quantifying the abundance of the gene transcript and application of the reagent component for quantifying the abundance of the gene transcript to preparation of a kit or a medicine for identifying and shunting patients with abnormal body temperature.

Display panel, manufacturing method thereof and display device

The embodiment of the invention provides a display panel, a manufacturing method thereof and a display device. The display panel comprises a substrate, a light-emitting device, a pixel definition layer and a first spacing structure, the light-emitting device and the pixel definition layer are located on one side of the substrate, the pixel definition layer comprises an opening area and a dike part, the opening area comprises a first opening and a second opening, and the first opening is provided with the light-emitting device; the first spacing structure is arranged in the second opening; wherein in the direction perpendicular to the plane where the substrate is located, the distance between the surface of the side, away from the substrate, of the first spacing structure and the substrate is d1, the dike part comprises a first part, and the distances between the surface of the side, away from the substrate, of the first part and the substrate are d2 and d1gt; and d2. According to the embodiment ...

Trunk assembly for vehicle and vehicle with same

The invention discloses a trunk assembly for a vehicle and the vehicle with the trunk assembly, and the trunk assembly comprises a trunk body, a driving device and a driving device, and the cover body is movably arranged on the box body, and the cover body translates relative to the box body so as to selectively open or close the opening. According to the designed trunk assembly, the mode that the cover body opens or closes the opening is more attractive for users, the upper portion of the cover body can be used for containing articles or allowing the users to have a rest, and the functions of the trunk assembly are enriched.

Optical film cutting and separating device

The utility model discloses an optical film cutting and separating device which comprises a support, a first motor, a second motor and a laser cutter, a roller shaft is arranged in the support, the front end of the roller shaft is connected with a gear, the first motor is arranged behind the left side of the support, and a guide plate is arranged in the middle of the support. A spring is arranged at the bottom of the connecting column, a groove hole is formed in the support, a connecting frame is connected to the upper portion of the middle of the support, a driving rod is arranged below the connecting frame, a second motor is connected to the rear side of the driving rod, the outer side of the front end of the driving rod is wrapped with a guide sleeve, and a mounting block is connected to the lower portion of the guide sleeve. And a laser cutting knife is mounted below the mounting block. According to the optical film cutting and separating device, an optical film can be conveniently ...

Display panel and display device

The embodiment of the invention provides a display panel and a display device. The display panel comprises a substrate; a plurality of light-emitting devices located on the substrate; the light emitting device includes an organic common layer; the first organic layer comprises a first groove; the orthographic projection of the first groove on the substrate at least partially surrounds the orthographic projection of the light-emitting device on the substrate; the side wall of the first groove comprises a first sub-side wall and a second sub-side wall; the first sub-side wall comprises a first part and a second part which are connected; in the direction from the first sub-side wall to the second sub-side wall, the distance between the first part and the vertical bisection surface of the first bottom surface is smaller than the distance between the second part and the vertical bisection surface of the first bottom surface; and the distance between the second sub side wall and the vertical ...

Infrared weak and small target detection method based on Swinin-Transform and multi-scale feature fusion

The invention relates to the technical field of infrared weak and small target detection, in particular to an infrared weak and small target detection method based on Swin-Transform and multi-scale feature fusion, which comprises the following steps: introducing a Swin-Transform module in a Unet network to replace an original convolutional layer to carry out feature extraction so as to form a target detection model; the method comprises the following steps: inputting a to-be-detected infrared image into a trained target detection model: firstly, extracting feature information of the infrared image layer by layer through a plurality of Swin-Transform modules, and generating feature maps of multiple scales; sequentially fusing the feature maps of various scales from the feature map of the highest scale through a plurality of cross-layer feature fusion modules to generate a corresponding multi-layer fusion feature map; and finally, inputting the multi-layer fusion feature map into a classifier ...

Computer sound box with Bluetooth function and RGB fantasy color lamp

The invention relates to a computer sound box with a Bluetooth function and an RGB (red, green and blue) colorful lamp, which comprises a USB (universal serial bus) plug, a drive-by-wire shell and a computer sound box, and is characterized in that the USB plug is connected with a computer and a control circuit board through a power line, the control circuit board is provided with a Bluetooth main control module, an audio power amplifier module and an RGB lamp control module, and the control circuit board is electrically connected with the computer sound box through a wire. The USB computer sound box has the advantages that Bluetooth connection between the USB computer sound box and a mobile phone is achieved, meanwhile, the RGB light effect can be controlled, multiple light effect modes can be provided, a user can have better experience feeling, only a DC5V USB interface is needed for power supply, and the USB computer sound box is convenient to use, simple in structure, convenient to use ...

Boiler flue descaling device

The boiler flue descaling device comprises a plurality of descaling units fixedly arranged on the side wall of a flue, each descaling unit comprises a supporting pipe, a cooling medium conveying pipe, an adjusting rod and a driving unit, the cooling medium conveying pipe and the adjusting rod are sequentially arranged in the supporting pipe from outside to inside, and the driving unit is used for driving the adjusting rod to do axial reciprocating motion. A first gap is formed between the inner wall of the cooling medium conveying pipe and the outer wall of the adjusting rod, a conical inner wall is arranged on the inner wall of the output end of the cooling medium conveying pipe, and a conical section matched with the conical inner wall is arranged on the section, corresponding to the conical inner wall, of the adjusting rod. A nozzle is arranged at the output end of the cooling medium conveying pipe and extends into the flue. The adjusting rod is arranged to adjust the injection amount ...

Coordination control method and system suitable for new energy unit/energy storage unit

The invention discloses a coordination control method and system suitable for a new energy unit/energy storage unit, and belongs to the technical field of stability control of a new energy grid-connected system. The method comprises the steps of determining an operation state of a station, and if the operation state is normal, adjusting a control strategy of a new energy unit/energy storage unit in the station to a fixed power factor control mode; obtaining a terminal voltage of the station, and determining whether a new energy unit/energy storage unit in the station enters a crossing period or not according to a comparison result of the terminal voltage and a crossing judgment threshold value; and after the active power and the reactive power of the station are recovered, recovering the new energy unit/energy storage unit control strategy in the station to a fixed power factor control mode. According to the invention, delay caused by communication between devices can be avoided, the response ...

Wolfberry and sea-buckthorn heating and sulfur-reducing treatment device and use method thereof

The invention discloses a Chinese wolfberry and sea buckthorn heating and sulfur-reducing treatment device and a use method thereof.The main body of the device comprises a sulfur-removing material carrying tray, a rotary conveying platform is arranged at the bottom end of the sulfur-removing material carrying tray, a sulfur-removing dustproof shield is arranged on the outer side of the rotary conveying platform, a material distributing assembly is arranged on the inner side of one end of the sulfur-removing dustproof shield, and a material storage mechanism is arranged at the top end of the material distributing assembly; an atomization desulfurization driver is arranged in the middle of the top end of the desulfurization dustproof shield, an atomization flushing end is arranged at the bottom end of the atomization desulfurization driver, a material recycling assembly is arranged on one side of the desulfurization dustproof shield, and a desulfurization treatment control terminal is arranged ...

Pseudomonas fluorescens Aw10 and application

The invention discloses Pseudomonas fluorescens Aw10 and application thereof. The Pseudomonas fluorescens Aw10 is preserved in China Center for Type Culture Collection, the preservation number is CCTCC NO.M 20221544, and the preservation address is Wuhan University, Wuhan, China. The Pseudomonas fluorescens Aw10 is named as Pseudomonas fluorescens Aw10. By optimizing a fermentation medium of the strain, the enzyme activity of feruloyl esterase in shake flask fermentation of the strain under optimized conditions is 73.5 U/L, which is increased by about 2 times compared with the enzyme activity of the strain before optimization. The strain has the advantages of high feruloyl esterase yield, high temperature resistance and the like, can be applied to white spirit brewing production, particularly to the application aspect of a yeast making process, is beneficial to increasing the content of ferulic acid in white spirit, has positive influence on the health attribute of the white spirit, and ...

Dangerous road section identification method and device, edge side platform and roadside equipment

The invention provides a dangerous road section identification method and device, an edge side platform and roadside equipment, and relates to the technical field of Internet of Vehicles. The method comprises the following steps: receiving vehicle basic safety information, sent by roadside equipment, of a current driving vehicle within the coverage range of the roadside equipment; historical vehicle driving environment information within the coverage range of the edge side platform is acquired, and a dangerous driving road section is determined according to the historical vehicle driving environment information; according to the basic safety information of the vehicle and the dangerous driving road section, determining a dangerous indication road section where the vehicle runs within the coverage range of the roadside equipment; and sending indication information to the roadside equipment, wherein the indication information comprises the dangerous indication road section. According to the ...

Post-treatment method for improving quality of selective laser melting formed high-strength aluminum alloy

The invention relates to the technical field of additive manufacturing, in particular to a post-treatment method for improving the quality of a selective laser melting formed high-strength aluminum alloy, which comprises the following steps of: cleaning residual powder after printing is completed; and the high-strength aluminum alloy blank component and the base plate are subjected to anti-quenching treatment and aging heat treatment, and then finish machining treatment is conducted. By means of the post-treatment method, the strength and forming accuracy of the selective laser melting forming high-strength aluminum alloy component can be improved, and the forming quality of the high-strength aluminum alloy component with the complex structure such as a thin wall, multiple curved surfaces and a dot matrix is improved.

Combined sealing structure for turbine pump and liquid rocket engine

The invention discloses a combined sealing structure for a turbine pump and a liquid rocket engine, relates to the technical field of liquid rocket engines, and aims at solving the problem that a dynamic sealing device of an existing turbine pump is poor in sealing effect. The combined sealing structure for the turbine pump comprises a first-stage liquid sealing wheel and a second-stage liquid sealing wheel which are used for being installed on a rotor, the first-stage liquid sealing wheel and the second-stage liquid sealing wheel are sequentially arranged in the axial direction of the rotor, the first-stage liquid sealing wheel, the second-stage liquid sealing wheel and the rotor rotate synchronously, and the first-stage liquid sealing wheel and the second-stage liquid sealing wheel are both used for conducting liquid sealing on the turbine pump. The liquid rocket engine comprises the combined sealing structure for the turbine pump provided by the scheme.

Iron core column transferring and measuring device

The invention relates to an iron core column transferring and measuring device which structurally comprises a supporting frame, ground feet or Foma wheels are arranged at the four corners of the bottom of the supporting frame, weight sensors are installed between the ground feet and the bottom of the supporting frame through connecting assemblies, and the top of the supporting frame is evenly connected with a plurality of parallel fixing shafts provided with rollers at intervals in the length direction. The rollers are connected with a driving mechanism through a transmission assembly. The iron core column moves to the equipment through the roller and is measured through the weight sensor. The iron core column transfer device has the advantages that the structural design is reasonable, automatic transfer of iron core columns is completed through the roller, the motor, the bearing and other structures, the weight sensors are arranged between the overall supporting frame and the ground feet ...

Method, device, equipment and medium for improving direct current bearing capability of receiving-end power grid

The invention belongs to the technical field of power systems, and discloses a method, device and equipment for improving the direct current bearing capacity of a receiving-end power grid and a medium. The method comprises the following steps: acquiring parameters of a receiving-end power grid, judging the direct current bearing capability of the receiving-end power grid from three angles of power angle, voltage and frequency, and obtaining a judgment result; analyzing a judgment result: if the power angle of the receiving-end power grid is limited, taking measures for improving the direct current bearing capacity of the receiving-end power grid aiming at the limited power angle; if the voltage of the receiving-end power grid is limited, measures for improving the direct-current bearing capacity of the receiving-end power grid are taken for the voltage limitation; and if the frequency of the receiving-end power grid is limited, taking measures for improving the direct-current bearing capacity ...

Space target feature on-orbit real-time parallel LU decomposition calculation system and method

The invention discloses a space target feature on-orbit real-time parallel LU decomposition calculation system and method. The calculation system comprises an input register set, an output L matrix register set, an output U matrix register set, an LU parallel calculation scheduling controller and a calculation unit set. The calculation method comprises the steps that the LU parallel calculation scheduling controller controls the input register set to receive and store data to be decomposed; the LU parallel computing scheduling controller generates a time sequence scheduling mechanism according to the computing unit group, reads to-be-decomposed data through the time sequence scheduling mechanism, and sequentially transmits the to-be-decomposed data to the computing unit group for LU decomposition computing to obtain an L matrix result and a U matrix result; the LU parallel computing scheduling controller correspondingly transmits and stores the L matrix result and the U matrix result to ...

A desk for japanese teaching

... 一种用于日语教学的课桌，其包括一桌体装置，其包括一桌主体和四支撑腿，所述桌主体包括一桌面元件，所述支撑腿设置于所述桌面元件的四个转角处；和一个垫体装置，其包括活动连接的一第一垫体元件、一第二垫体元件、一第三垫体元件和一第四垫体元件，所述第一垫体元件重叠地设置于所述桌面元件，所述第二垫体元件、所述第三垫体元件和所述第四垫体元件得以折叠，以使所述第四垫体元件重叠地设置于所述第一垫体元件，以使所述第二垫体元件和所述第三垫体元件形成一支架部，其中所述支架部用于支撑一日语书籍至预设角度。 ...

Waste water evaporation plant in coal fired boiler stove

... 本实用新型公开了一种燃煤锅炉炉内废水蒸发装置，包括用于煤燃烧的燃煤锅炉和用于去除烟气中灰尘颗粒的除尘器，除尘器上设有用于排放灰尘颗粒的输灰管路和用于输送过滤后烟气的后续烟道，燃煤锅炉和除尘器通过除尘烟道连通；燃煤锅炉内设有雾化喷嘴，燃煤锅炉外设有用于抽取废水的水泵，雾化喷嘴和水泵通过管路连通。该装置充分利用现有设备和烟气热量，将废水中水分完全蒸发成为水蒸气，废水中的污染物在水分完全蒸发后结晶为固态，从而使废水中的水分和污染物完全分离便于分别处理，以实现锅炉废水的彻底无害化处理。 ...

Process for preventing real silk fabric from being damaged by dust

The invention relates to a process for preventing a real silk fabric from dust damage. The process comprises the following steps: (1) a synthesis process: dissolving a chemical R and an acid-binding agent in a water mark A solution for later use; adding ice cubes and a solvent into a reaction device, adding cyanuric chloride monomers in proportion, stirring, dropwise adding the solution A into the reaction device, reacting at a set temperature for a set time, filtering, and airing to obtain a finished product of the dustproof agent. (2) a real silk treatment process: taking a finished product of the dustproof agent, adding water to disperse, adding real silk, heating to 40 DEG C to react for 10 minutes, adding an acid-binding agent to adjust to a set pH value, keeping the temperature for 30 minutes, then heating to a set temperature to react for set time, cleaning the treated real silk fabric twice in water at 45 DEG C, and finally sizing and drying. A real silk treated sample is wear-resistant ...

Preparation method and application of modified substrate for constructed wetland

The invention discloses a preparation method of a modified substrate for an artificial wetland, and belongs to the technical field of wetlands. Comprising the following steps: screening a natural matrix, then cleaning the screened natural matrix with deionized water, putting the natural matrix into a drying oven for drying, taking out the dried natural matrix, and cooling the dried natural matrix to room temperature for later use; weighing a natural matrix cooled to room temperature, adding the natural matrix into a FeCl3 solution under a constant-temperature water bath condition, continuously stirring, adjusting the pH value by using a NaOH solution, taking out the natural matrix after the reaction is finished, standing for a period of time, then washing the natural matrix by using distilled water for several times until the natural matrix is neutral, drying the natural matrix in a drying oven, and taking out the natural matrix for natural cooling after drying; and firing the naturally ...

Quick clamping type lifting appliance for slewing bearing and lifting method of quick clamping type lifting appliance

The invention discloses a quick clamping type lifting appliance for a slewing bearing and a lifting method of the quick clamping type lifting appliance, and belongs to the technical field of lifting appliances for slewing bearings. The lifting device comprises a cross beam, a bearing seat is arranged at the bottom of the cross beam, a screw rod is arranged in the bearing seat, one end of the screw rod penetrates through the bearing seat and is connected with a hand wheel, lifting legs are arranged on a rod body of the screw rod, the number of the lifting legs is two, and two sets of lifting plates are arranged at the bottom of each set of lifting legs; each lifting leg comprises a connecting part and a supporting part, a positioning hole is formed in the surface of each supporting part, and a positioning bolt penetrates through each positioning hole and is connected with the hanging scaffold. Clamping is completed through the hand wheel, rapid transferring is completed through the existing ...

Basement automatic pressure relief anti-floating system capable of monitoring water pressure and construction method thereof

The invention discloses a basement automatic pressure relief anti-floating system capable of monitoring water pressure and a construction method thereof. Comprising a water permeable system, a water collecting system, an inner-layer water filter pipe, a middle-layer water filter pipe, an outer-layer water filter pipe, an inner filter material, a middle filter material, an outer filter material, a drainage well base, a water stop steel plate, sealing concrete, a monitoring system, an inverted filter layer, a pipe opening geotechnical cloth filter layer, a rigid waterproof sleeve and a water outlet system. The permeable system is composed of a polyethylene protective film, a permeable gravel layer and a geotechnical cloth filtering layer, the polyethylene protective film is located below the basement bottom plate, and the polyethylene protective film 1 is located above the permeable gravel layer 2. The underground water in the influence range of the laying position can be efficiently collected ...

Microalgae exosome as well as preparation method and application thereof

The invention relates to the technical field of biology, in particular to a microalgae exosome as well as a preparation method and application thereof. According to the present invention, the microalgae exosome is extracted from nannochloropsis oculata by using the ultracentrifugation method, and the detection results show that the microalgae exosome can carry the chromoprotein and the miRNA, does not contain any CD protein homologous with the human-derived or animal-derived exosome, is safe to use, and has wide prospects in the preparation and application of cosmetics, drugs and vaccines.

Data acquisition system and method based on photovoltaic power generation

The invention discloses a data acquisition system and method based on photovoltaic power generation, and relates to the technical field of photovoltaic power generation, and the system comprises a data acquisition module, an instruction generation module, a data monitoring module, a data analysis module and a node distribution module. The data monitoring module is used for retrieving, downloading and monitoring the photovoltaic power generation data cached by the management center, and evaluating the observation coefficient GC of the corresponding photovoltaic power station; the instruction generation module is used for determining the acquisition frequency of the corresponding photovoltaic power station according to the observation coefficient GC and reasonably arranging monitoring resources; in response to the data acquisition instruction, the data acquisition module is used for acquiring photovoltaic power generation data of a plurality of photovoltaic modules and transmitting the photovoltaic ...

Mechanical arm hand-eye calibration method and storage medium

The invention discloses a mechanical arm hand-eye calibration method and a storage medium. The mechanical arm hand-eye calibration method comprises the steps that S10, a mechanical arm is used for driving a camera to move to find a calibration object; s20, after the calibration object is located in the view field of the camera, the position where the mechanical arm is located serves as an initial starting point, and sampling calibration is conducted at the initial starting point to obtain an initial hand-eye calibration relation; s30, the pose of the mechanical arm is adjusted according to the initial hand-eye calibration relation, an optimal calibration sampling point is found, and sampling calibration is conducted on the optimal calibration sampling point to obtain an updated secondary hand-eye calibration relation; and S40, sampling calibration is carried out in a camera image plane to obtain a final target hand-eye calibration relation. Full-automatic hand-eye calibration can be achieved ...

Straw full-amount returning method based on organic fertilizer field stack retting in corn conservation farming mode in northeast region

The invention belongs to the technical field of straw stack retting and field returning cultivation, and particularly relates to a straw total-amount field returning method based on organic fertilizer field stack retting in a corn protective cultivation mode in the northeast region. Based on the principle of in-situ stack retting and direct field returning of straw, a field piece with the unit area not smaller than 2 ha serves as a straw collecting area, autumn-harvested straw is selected, after high stubble is reserved, the ground surface is covered with 1/3 of smashed straw, the ground surface is mixed with a proper amount of livestock manure and a low-temperature fungicide with specific components, in-situ stack retting is conducted, organic fertilizer is prepared, and the organic fertilizer is returned to the field in a drill seeding fertilization mode. Therefore, the full-amount returning of the straws to the field is realized. Compared with a conventional method of directly smashing ...

Network construction type energy storage control method and system aiming at power grid voltage operation problem

The invention discloses a network construction type energy storage control method and system for solving a power grid voltage operation problem, and the method comprises the steps: obtaining the bus voltage data of a new energy collection station in real time, and generating a bus voltage deviation value based on the bus voltage data and a bus voltage reference value; when the bus voltage deviation value is larger than a preset bus voltage deviation value threshold value, energy storage active control, energy storage reactive adjustment control and energy storage comprehensive control are started, and according to the energy storage active control, a voltage phase control instruction value is generated according to the energy storage charge state, an energy storage active power output value and a preset active power reference value; according to the energy storage reactive power regulation control, a voltage amplitude control instruction value is generated according to the bus voltage deviation ...

Modularized sewage plant adopting green energy power generation for automatic allocation and cooperative operation

The invention discloses a modular sewage plant adopting green energy power generation for automatic allocation and cooperative operation, and relates to the technical field of sewage pretreatment. The modular sewage plant comprises a sewage pool, a solar panel and a cooperative allocation platform, and two isolation plates are fixedly mounted in the sewage pool. According to the modular sewage plant adopting green energy power generation for automatic allocation and cooperative operation and the use method, sewage is subjected to layered treatment by virtue of arrangement of a spacing plate, large suspended solids in the sewage are automatically removed by virtue of arrangement of a driving assembly, a belt assembly and a suspended solid cleaning assembly, and under cooperation of the floating solid cleaning assembly, the suspended solids in the sewage can be automatically removed; and in the clearing process, the inclination angle of the solar panel is adjusted through the steering assembly ...

Typical maneuvering process simulation test device based on magnetic levitation flight wind tunnel

The invention relates to the field of maglev flight wind tunnels, in particular to a typical maneuvering process simulation test device based on a maglev flight wind tunnel, and the device comprises a rotation module which is used for driving an aircraft model to rotate so as to simulate a typical maneuvering process; wherein the rotating module comprises rotating rods which are symmetrically arranged and a supporting rod which is arranged between the rotating rods and used for supporting the aircraft, and one end of each rotating rod is rotationally connected with the driving module; and the driving module is sequentially provided with a speed transmission path for outputting a rotation angle, converting the rotation angle into linear transmission and converting the linear transmission into the rotation angle again, so that high-speed and high-stability speed conversion and transmission are realized, and the aircraft model can be driven to simulate a complex typical maneuvering process ...

Method for judging risk of landslide disaster by using double-extreme-value fuzzy set

The invention relates to a method for judging the risk of a landslide disaster by using a double-extreme-value fuzzy set. The method comprises the following steps: step 1), data collection comprises two parts; in the first part, landslide point data are collected; 2, collecting Sentinel-1A radar image data, precise orbit determination ephemeris data, Google satellite image data, DEM data, gradient, slope direction and curvature data, fault data, river water system data, landform type data, road network data and seismic intensity data; 2) determining a landslide hazard risk evaluation factor; and 3) establishing a landslide disaster risk evaluation model based on the double extreme value fuzzy set. According to the method, the judgment result of the double-extreme-value fuzzy set judgment method is basically and relatively consistent with the judgment result of the BP neural network. The evaluation results of 10 villages and towns in 12 villages and towns are relatively close to each other ...

Zero discharging equipment of coal fired boiler waste water

... 本实用新型公开了一种燃煤锅炉废水零排放装置，包括用于煤燃烧的燃煤锅炉和用于去除烟气中灰尘颗粒的除尘器，燃煤锅炉和除尘器之间设有空气预热器，除尘器上设有用于排放灰尘颗粒的输灰管路和用于输送过滤后烟气的后续烟道，燃煤锅炉与空气预热器通过输送烟道连通，空气预热器与除尘器通过除尘烟道连通；输送烟道内设有雾化喷嘴，输送烟道外设有用于抽取废水的水泵，雾化喷嘴和水泵通过管路连通。该装置充分利用现有设备和烟气热量，将废水中水分完全蒸发成为水蒸气，废水中的污染物在水分完全蒸发后结晶为固态，从而使废水中的水分和污染物完全分离便于分别处理，以实现锅炉废水的彻底无害化处理。 ...

Plant protection unmanned aerial vehicle capable of preventing birds and repelling birds

The plant protection unmanned aerial vehicle comprises a device body, a machine frame is arranged on the outer surface of the upper end of the device body, a foot frame is arranged on the outer surface of the lower end of the machine frame, a power box is arranged on the outer surface of the lower end of the machine frame, and a bird repelling mechanism is arranged on the outer surface of the lower end of the power box. A rotating shaft is arranged on the outer surface of one side of the device body. According to the plant protection unmanned aerial vehicle capable of preventing birds and repelling birds, birds can hear sounds, play a frightening role, effectively prevent the birds from getting close to the unmanned aerial vehicle, rotate back and forth under the action of wind and continuously flash dazzling light, so that the birds can hide away and emit odor in a larger area under the action of the wind, and the birds are protected. The bird repelling device is simple in structure and ...

Low-voltage transformer area identification method based on cross-correlation algorithm

The invention discloses a low-voltage transformer area topology identification method based on a cross-correlation algorithm. The method comprises the following steps: 1, acquiring current data of a low-voltage transformer area; 2, carrying out filtering processing on the data; 3, carrying out segmented summation on the current data in the nodes; 4, calculating and comparing correlation coefficients among the summed nodes; 5, comparing the current data between the nodes to generate a correlation matrix; and 6, generating an adjacent matrix according to the correlation matrix, and obtaining the topological relation between the nodes according to the relation between the elements. The method has the advantages of being small in collection error, high in real-time performance, simple in structure, easy and convenient to operate, accurate in recognition and the like, the topology recognition speed is increased, the topology recognition accuracy is improved, the line loss of a power supply company ...

Desk that education management used

... 种教育管理用的办公桌，其包括个桌体装置以及个存储装置，所述存储装置体地设置于所述桌体装置的桌板元件上，其中所述桌体装置在所述桌板元件的下部提供个容纳腔以供帮助老师存储些教学工具或者教学文具，其中所述存储装置在所述桌板元件的上部提供至少个存储空间，以帮助老师存储些教学工具或者教学文具，从而所述教育管理用的办公桌能够帮助老师分类对教学工具或者教学文具进行管理。 ...

Device for investigation and design of high-standard farmland construction

The invention provides a device for high-standard farmland construction investigation and design, and relates to the technical field of farmland regulation exploration and measurement. The device for high-standard farmland construction investigation and design comprises a first shell, the upper end and the lower end of one side of the first shell are rotationally connected with a second shell through hinges, arc-shaped grooves are formed in the upper middle portions of the front sides of the first shell and the second shell, and threaded grooves are formed in the middle portions of the top ends of the first shell and the second shell; a fixing disc is arranged on the front side of the first shell. The sampling column extends into water through the connecting column, water flow and silt enter the cavity together, the device is taken out of the water after ten seconds, the valve is opened to be matched with the filter plate for filtering, clear water is collected, then the hollow pipe is ...