26results about How to "Guaranteed sampling quality" patented technology

The utility model provides a high-precision diaphragm pump flow detection device which is characterized by comprising a shell, a pneumatic electromagnetic valve, a diaphragm pump, an air cavity, a throttle valve, a flow velocity sensor, a carbon dioxide sensor module, a temperature sensor module and a humidity sensor module which are connected in sequence through hoses, after a patient blows air into an air bag, an operator starts sampling, and the air bag is filled with air. At the moment, the diaphragm pump is started, the pneumatic electromagnetic valve is opened, and air in the air bag enters the equipment host; by controlling the rotating speed of a motor of the diaphragm pump, airflow in the sampling process is kept at a stable value, and sampling is automatically stopped according to set time; the storage device is used for recording and tracking, and the flow stabilizing device and the flow sensor are arranged, so that the sampling quality is high; the air bag is externally connected for collecting air during use, so that the waiting time of a patient is short.

The utility model relates to the technical field of geological mineral exploration equipment, in particular to sampling equipment for geological mineral exploration, which comprises a movable base and a sampling mechanism arranged on the movable base. The sampling mechanism comprises a vertical displacement assembly arranged on the movable base, a sampling pipe sleeve rotationally arranged on the vertical displacement assembly, a sampling pipe detachably connected to the sampling pipe sleeve, and a transmission assembly which is arranged on the movable base and the vertical displacement assembly and is in transmission connection with the sampling pipe sleeve; the transmission assembly can drive the sampling tube to rotate; the sampling pipe can rotate while moving up and down through the transmission assembly, friction force between the sampling pipe and the geology is reduced, the bottom of the sampling pipe is in a tooth shape, the sampling pipe can cut into a sample more easily, and the sampling speed is effectively increased; the sampling pipe is composed of the first semicircular pipe and the second semicircular pipe, the mode that the T-shaped sliding block is in sliding fit with the T-shaped sliding groove is adopted, mounting and dismounting are convenient, rapid cleaning and sample taking are facilitated, and the overall sampling efficiency is further improved.

The invention relates to the technical field of adaptive control, in particular to an adaptive control system of movable intelligent sampling equipment based on reinforcement learning. The system comprises a state and action construction unit, a reinforcement learning construction unit and a self-adaptive control unit, the state and action construction unit is used for performing superposition modeling on a plurality of concentration sources of a target substance to obtain a concentration field of the target substance, calculating a concentration field gradient, obtaining a real-time state of equipment, and constructing a state by taking the real-time state of the equipment, the concentration field and the concentration field gradient as elements in a state space; defining an action; the reinforcement learning construction unit is used for constructing a reward function of reinforcement learning according to the state and the action so as to generate a reinforcement learning model; and the adaptive control unit is used for carrying out strategy optimization, generating a control track and carrying out sampling quality evaluation according to the reinforcement learning model. According to the invention, autonomous decision making and efficient sampling of equipment in a dynamic concentration field are realized.

The invention discloses a portable rice and wheat combine harvester which is mainly used for scientific researchers to collect a small amount of rice and wheat or similar crop samples. The device comprises a harvesting part, a threshing and cleaning part, a backpack type negative pressure storage part and a power system. The harvesting part is used for shifting rice and wheat ears into the cutting mechanism through an ear shifting mechanism to cut off ear stems and sending the ear stems into the threshing and cleaning part, the threshing and cleaning part is used for threshing and cleaning the ears through a rotating threshing roller and a fan, and the backpack type negative pressure storage mechanism is used for extracting threshed and cleaned grains through a fan and a conveying hose, removing impurities and storing the grains. The device is compact in structure, light in weight and convenient to carry, disassemble, assemble and clean through modular design, and meets the sampling requirements of various crops. The equipment is simple to operate, can efficiently complete the whole process of harvesting, threshing and storing, is high in sample purity and cleanliness, is low in loss, remarkably reduces the labor intensity, improves the working efficiency, and can be widely applied to the fields of agricultural scientific research, breeding tests, germplasm resource protection and the like.

The utility model discloses an automatic material taking machine. The automatic material taking machine comprises a barrel, a material taking device and a material taking device, the material taking device is arranged in the barrel body; the material receiving device is arranged on the outer side of the barrel body; one end of the material conveying channel serves as a material collecting opening to extend into the barrel body and corresponds to the discharging position of the material taking device, and the other end of the material conveying channel serves as a material discharging opening and corresponds to the material collecting device; the driving device is connected with the material taking device, and the driving device drives the material taking device to complete the discharging action and convey the cement sample to the material collecting opening of the material conveying channel. According to the cement sampling device, automatic online sampling can be realized, manual sampling is not needed, the problems of insufficient sampling representativeness, low sampling efficiency and easiness in sample pollution caused by manual sampling are solved, the sampling efficiency is improved, the sampling quality is ensured, and a more reliable technical guarantee is provided for cement quality control.

The utility model relates to the technical field of sampling tubes, in particular to a novel blood sampling tube which comprises a temporary support, a plurality of circular grooves are formed in the top of the temporary support, blood sampling tubes are placed in the circular grooves, and first annular anti-falling blocks and second annular anti-falling blocks are arranged on the outer walls of the blood sampling tubes. Four first rubber positioning sheets which are arranged in an annular array are arranged at the middle upper part of the inner wall of the circular groove, and two second rubber positioning sheets which are arranged in a bilateral symmetry manner are arranged at the positions, close to the bottom, of the inner wall of the circular groove. According to the novel blood sampling tube, a first annular anti-falling block and a second annular anti-falling block are arranged and are matched with a first V-shaped groove in a first rubber positioning piece and a second V-shaped groove in a second rubber positioning piece respectively, so that the movement of the blood sampling tube in the longitudinal direction and the transverse direction can be effectively limited, and the blood sampling tube is prevented from moving or sliding due to shaking; the stability of the sampling pipe is greatly improved, and the sampling pipe is particularly suitable for being used in transportation or bumpy environments.

The invention relates to a wetting liquid formula for improving a sample preservation effect and a preparation method. The wetting liquid formula comprises 15-50% of an anti-aggregation reagent; 5%-10% of a buffer solution; 1%-20% of an ionic strength maintaining reagent; 0.01% to 0.5% of an antimicrobial agent; 0.1%-5% of a mucus dissolving reagent; 0%-0.5% of a cleaning agent and 0.1%-0.5% of penicillanes The content percentage is calculated according to the amount of the prepared 1L solution. The sample conveying time efficiency and stability can be improved, and more flexible sample treatment and sample conveying time can be provided for a user.

The invention belongs to the technical field of blasting, and particularly relates to a drilling device for blasting, which comprises a base mounting plate, a fixing plate is fixedly mounted on one side of the mounting plate, a positioning piece is fixedly mounted on the other side of the fixing plate, and the positioning piece comprises a first sealing cylinder, a second sealing cylinder and a third sealing cylinder. The first sealing cylinder, the second sealing cylinder and the third sealing cylinder are communicated, and the second sealing cylinder is arranged outside the first sealing cylinder in a sleeving mode; the telescopic positioning piece is arranged outside the drilling barrel in a sleeving mode, positioning can be provided for the moving direction of the drilling barrel in the rotating sampling process of the drilling barrel, and therefore the center line of the drilling barrel and the center lines of the first sealing barrel, the second sealing barrel and the third sealing barrel are located on the same horizontal line all the time in the drilling process of the drilling barrel; the drilling barrel is prevented from deviating in the sampling process to influence the sampling effect, so that the sampling quality of the device is ensured.

The utility model belongs to the technical field of soil sampling devices, and provides a geotechnical engineering soil test detection soil sampling device which comprises a supporting rod, the top end of the supporting rod is fixedly connected with a top frame, the top end of the top frame is movably connected with an adjusting assembly in a penetrating mode, the outer side of the supporting rod is movably connected with a sliding frame, and one side of the sliding frame is fixedly connected with a motor frame. A sampling motor is fixedly connected to the top of the motor frame, a sampling head is fixedly connected to the driving end of the sampling motor, an upper magnetic attraction sleeve is fixedly connected to the outer side of the sampling head, a limiting sleeve is movably connected to the outer side, away from the outer side of the upper magnetic attraction sleeve, of the sampling head, a movable pin penetrates through the outer side of the bottom end of the sampling head, and a movable groove is formed in the bottom end of the sampling head; according to the soil sampling device, through the arrangement of the upper magnetic suction sleeve, the limiting sleeve, the sampling pipe and the lower magnetic suction head, the soil sampling difficulty is reduced, rock soil cannot be loosened when being taken out, and therefore the sampling quality is guaranteed.

The present application relates to the technical field of geotechnical engineering investigation, and specifically discloses a rock-soil investigation adjustable-depth sampling method, which acquires pore fluid pressure data in real time through a sensor group arranged at the front end of a sampler; based on the data, the evolution trend of the pressure field in front of the sampler is dynamically predicted, and a prediction result containing the pressure abnormal state and its space-time information is generated; the prediction result is processed in stages to obtain a pressure risk level; the level is used in a collaborative decision with the soil sensitivity and the target sampling quality to generate a dynamic control strategy; finally, the penetration action of the sampler is adjusted in real time according to the strategy, including performing a micro-retraction and re-penetration cycle or a gradual deceleration operation, and the control effect is ensured through closed-loop optimization; the present application can actively suppress water hammer and cavitation effect, and improve the quality and reliability of obtaining undisturbed samples in complex strata.

The utility model relates to an environmental object surface microorganism sampler which is provided with a three-dimensional base frame and a handheld rod, the three-dimensional base frame is a hollow three-dimensional base frame, the bottom end of the three-dimensional base frame is open, the top of the three-dimensional base frame is provided with a panel, a strip-shaped hole is formed in the middle of the panel, a screw section is arranged in the middle of the handheld rod, a transverse partition plate and a nut are screwed on the screw section, and the nut is located above or below the transverse partition plate. A gasket is arranged between the transverse partition plate and the nut, the lower end of the handheld rod is fixedly connected with a spring, the lower end of the spring is fixedly connected with a sponge fixing clamp capable of fixedly installing a sampling sponge, the sponge fixing clamp can be provided with two clamping jaws expanding outwards, and the lower ends of the two clamping jaws are provided with two clamping columns matched with two clamping grooves in the sampling sponge. The device is convenient to use, is slightly influenced by human factors, and is beneficial to improving the accuracy of a sampling result.

The application discloses a kind of dump groundwater sampling device, including fixed support, support is equipped with tunneling assembly and electric telescopic rod, electric telescopic rod movable end connects drive assembly, drive assembly is connected tunneling assembly and sampling assembly respectively;Sampling assembly contains symmetrical conical guide ring, ring bin, adjusting plate (baffle and filter plate splicing), linkage ring, gear ring, gear and first motor, tunneling assembly contains shell, screw rod and throwing window, drive assembly contains second motor, transmission shaft and compression spring.After reaching the preset sampling depth, adjusting plate realizes sampling and sealing switching, filter plate filters impurities, improves sampling efficiency, and is suitable for complex dump environment.

The utility model relates to a novel precise biological sampling net pipe, which belongs to the technical field of net pipes, has a simpler integral structure, and is convenient to properly protect a connecting pipeline matched with a stratified sampling net compared with the prior art, so that the connecting pipeline is prevented from being broken due to water pressure impact, the sampling efficiency and the sampling quality of the stratified sampling net are ensured, and the sampling efficiency and the sampling quality of the stratified sampling net are improved. The protective tube comprises a protective tube main body, the copper alloy net pipe main body is arranged in the protection pipe main body, and a bonding layer containing an anti-corrosion material is arranged between the copper alloy net pipe and the protection pipe main body; the two sealing rings are correspondingly arranged on the inner wall of the protection pipe body, and rubber lantern rings are fixedly connected into the sealing rings; the two positioning rings are fixedly welded to the upper end and the lower end of the protection pipe body through the connecting rings. And the two groups of positioning assemblies are arranged in the positioning ring and are used for fixing and limiting the protection pipe main body at the use position.

The sampling device for clinical biopsy comprises a trephine assembly, the trephine assembly comprises a barrel, a cylindrical groove is formed in the top of the barrel, a storage groove is formed in the bottom of the barrel, a connecting rod is inserted into the cylindrical groove, and the bottom of the connecting rod penetrates through the cylindrical groove into the storage groove; a cylindrical groove is formed in the bottom of the connecting rod, a trephine sampling device is fixed to the bottom of the connecting rod, a wafer is fixed to the connecting rod, the wafer can ascend and descend in the cylindrical groove and can rotate in the cylindrical groove, a first spring is arranged between the wafer and the bottom wall of the cylindrical groove, and an operation head is fixed to the top of the connecting rod; and the lifting control assembly is additionally arranged on the cylinder body, so that the range of the trephine depth can be effectively controlled.

A sampling device for clinical biopsy of the present invention comprises a trephine assembly, wherein the trephine assembly comprises a barrel, a cylindrical groove is provided at the top of the barrel, a receiving groove is provided at the bottom of the barrel, a connecting rod is inserted in the cylindrical groove, the bottom of the connecting rod passes through the cylindrical groove to the receiving groove, a trephine sampler is fixed at the bottom of the connecting rod, a disc is fixed on the connecting rod, the disc can be lifted and lowered in the cylindrical groove and can be rotated in the cylindrical groove, a No. 1 spring is placed between the disc and the bottom wall of the cylindrical groove, and an operating head is fixed on the top of the connecting rod; a lifting control assembly is added to the barrel to effectively control the range of the trephine depth.

The invention discloses a polytetrafluoroethylene granular material sampling device, which comprises a bottom plate, a lifting assembly, a telescopic cylinder, a top plate and a sliding plate, the upper end and the lower end of the lifting assembly are fixedly mounted on the bottom plate and the top plate respectively, moving wheels are arranged at four corners of the bottom of the bottom plate, and the sliding plate is slidably arranged at the top of the top plate. The telescopic air cylinders are symmetrically arranged on the two sides of the sliding plate, piston rods of the telescopic air cylinders are connected with the side wall of the sliding plate, and the sampling assembly is installed at one end of the sliding plate. The lifting assembly can drive the sampling assembly to move up and down, accumulated polytetrafluoroethylene particles can be conveniently sampled, a sampled sample can be conveniently unloaded, it is guaranteed that the device can sample the polytetrafluoroethylene particles with different depths through the arrangement of the multiple sampling rods, and the sampling efficiency and the sampling quality of the device are greatly guaranteed.

The utility model relates to the field of exploration sampling technology provides a kind of rotary petroleum exploration core sampler to solve the problem such as the poor cutting flexibility of traditional core sampler, clamping is not stable, sampling efficiency is low.The sampler moves seat by electric guide rail drive, drives pivot and multiple cutting sheet flexible adjustment cutting position, adapt to different size shape's core block;Rotary table is rotated by second motor drive, realize multi-angle cutting, need not manual adjustment;Clamping assembly adopts two clamps synchronous movement of bidirectional screw drive, rubber pad increases friction, prevents core block sliding;Knocking assembly utilizes the power of first motor, moves up and down by cam driving split cutter, knocks the core block after cutting and realizes separation, need not additional power source.The sampler improves cutting efficiency and sample quality, reduces labour intensity, is applicable to the core sampling work in petroleum exploration, meets the efficient, accurate, safe sampling demand.

The utility model relates to the technical field of road engineering detection, in particular to a road compactness detection device for road engineering, which comprises a rack, the rack comprises a frame, a positioning frame is arranged in the frame, a driving device is arranged at the upper part of the positioning frame, and the driving device is connected with a drilling device. The lifting device is arranged, a hand wheel is rotated, and a worm and gear transmission device is used for driving the lifting lead screw to rotate, so that the lifting block is driven to move, the sliding frame is driven to move through the clamping plate, the sampling motor is further driven to move, it is guaranteed that the sampling motor is kept perpendicular to the ground when moving, and the sampling quality is guaranteed; the sampling motor is used for driving the hollow drill to rotate so as to drive the sampling assembly to rotate, the hollow drill is used for removing tamped soil outside the sampling ring, after drilling is completed, the hollow drill and the sampling assembly can be separated by unscrewing the fixing nut, and due to the fact that the bottom end of the hollow drill is lower than the bottom end of the sampling ring, a soil layer around the sampling ring is lower than the bottom end of the sampling ring; the sampling difficulty is reduced and the sampling success rate is improved.

The invention relates to the technical field of sampling, in particular to hydrogeological sampling equipment which comprises a moving trolley, two vertical parts of an inverted-U-shaped frame are arranged at the upper end of a trolley plate part of the moving trolley, a moving plate is slidably connected between the two vertical parts of the inverted-U-shaped frame, and a drill bit is rotatably connected to the middle position of the lower end of the moving plate. A vertical part of a T-shaped plate is mounted at the right end of the magnetic plate, a piston is rotatably connected to the right end of a transverse part of the T-shaped plate, a connecting rod is arranged in the middle of the right end of the piston, and a cylinder is arranged at the right end of the connecting rod; the barrel is slidably connected into the sampling holes, the outer end face of the barrel is recessed inwards to form a plurality of V-shaped grooves, the aim of comprehensively sampling the periphery of the drilled hole is achieved through the design, the sampling effect is improved, sampling movement is conducted in the multiple sampling holes, multi-layer sampling is achieved, and the subsequent detection quality is guaranteed.

The invention relates to a method for identifying a traditional building based on a multi-feature fusion model, and the method comprises the steps: collecting remote sensing image data of the traditional building in a research region, and carrying out the data preprocessing; based on the preprocessed data, multi-type features are extracted, and a key feature space is constructed; wherein the extracted multi-type features comprise a vegetation index, an HSI color feature and a texture feature; constructing a traditional building sample library based on the key feature space; using the traditional building sample library to train and optimize a preset machine learning classification model to obtain an identification model; and performing traditional building identification by using the identification model. According to the method, efficient and accurate recognition of the traditional building can be realized, and meanwhile, a visual result and structured data are output, so that a technical support is provided for general survey registration, protection repair and dynamic monitoring of the traditional building heritage.

The invention belongs to the technical field of mineral identification, and particularly relates to a mineral identification device for field geology, a using method and an unmanned aerial vehicle. A shell is arranged below the unmanned aerial vehicle, a mounting hole is formed in a body of the shell, and a first electric telescopic rod is arranged in the mounting hole; the upper end of the first electric telescopic rod is rotationally connected with the inner wall of the placement hole, and the surface of the upper end of the first electric telescopic rod is further rotationally connected with a second electric telescopic rod. According to the identification device, by arranging the cutting mechanism, efficient, accurate and stable cutting operation on field minerals is achieved, it can be guaranteed that the cutting work is smoothly carried out by adjusting parameters and states of all components no matter whether rock minerals with high hardness or minerals with irregular shapes are cut, and the cutting efficiency is improved. In addition, the device can adapt to complex field geological environments and diversified mineral characteristics, and great convenience and higher working efficiency are brought to field geological sampling and mineral identification work.

The invention provides a ship radiation noise data augmentation method based on spectrum reconstruction, a medium and a system, and belongs to the technical field of ship radiation noise processing. After a continuous spectrum and a line spectrum are separated through smooth filtering, a continuous spectrum segmentation parameter, a line spectrum frequency amplitude parameter and a modulation spectrum fundamental frequency parameter are extracted; constructing a continuous spectrum reconstruction game model and a line spectrum detection game model to respectively optimize a filter coefficient and a detection threshold, solving the filter coefficient based on the continuous spectrum reconstruction game model by adopting a variable step size normalized adaptive iterative algorithm, and generating a continuous spectrum reconstruction time domain signal; a line spectrum effective frequency set is determined by adopting a constant false alarm rate adaptive detection algorithm based on a line spectrum detection game model, then a line spectrum reconstruction time domain signal is generated, a modulation pulse sequence is constructed according to the main shaft frequency and the blade number to generate a modulation spectrum reconstruction time domain signal, and the technical problem that the number of ship radiation noise samples is insufficient is solved.

The invention provides an advertisement video generation method and device, a computer readable medium and electronic equipment. The method comprises the steps that based on article unit information of a target article, an advertisement image corresponding to the target article is determined from a pre-constructed advertisement image library, and the advertisement image library is acquired after all article units are screened based on visual appearance features; according to the advertisement image, generating at least one candidate advertisement video corresponding to the target object; and determining evaluation scores of the candidate advertisement videos under a plurality of preset evaluation dimensions, and determining a target advertisement video corresponding to the target article from the at least one candidate advertisement video based on the evaluation scores under the plurality of evaluation dimensions. According to the method and the device, full-process automatic processing from commodity category collection to video generation and evaluation can be realized by establishing double filtering for advertisement video generation.

The application provides a multi-imaging mode full-slice pathological image background adaptive identification method and system and a storage medium. The method comprises the following steps: acquiring gray pixel data in response to a background area selected by a user, calculating a statistical quantity, and adaptively determining an initial background range based on a standard deviation and a preset filling amount; then, whether the mean value plus or minus the preset multiple standard deviation touches the boundary to expand the background range; and finally, judging the background and the tissue based on the expanded gray range. The method solves the problem that the prior art cannot uniformly adapt to the background differences of multi-modal images such as bright field and fluorescence, has the advantages that the background area under different imaging modes can be adaptively identified, and the identification accuracy and efficiency are improved.

The invention provides an aerosol graded sampling device capable of automatically replacing a filter screen. The aerosol graded sampling device is used for solving the problem that the sampling efficiency of existing sampling equipment is reduced due to frequent replacement of the filter screen. The sampling device comprises a base, a filtering unit and a material changing unit, the filtering unit comprises a grading filter and a first shear fork mechanism, the grading filter comprises a plurality of filtering blocks, the filtering blocks are sequentially connected on the base in a stacked mode, the first shear fork mechanism comprises a plurality of first shear fork assemblies, and the first shear fork assemblies are sequentially and rotationally connected on the base in a stacked mode; each first shear fork assembly is connected with a filter block with the same height as the first shear fork assembly; and a rotating mechanism and a translation mechanism are installed at the bottom of the reloading unit, the reloading unit comprises a second shear fork mechanism and a multi-layer reloading plate, and the second shear fork mechanism comprises a plurality of layers of second shear fork assemblies which are rotationally connected in sequence. According to the sampling device, the filter screen can be rapidly replaced through the material changing unit, and the sampling efficiency is higher.