89 results about "Direct observation" patented technology

The invention is suitable for the technical field of electrical data processing, and provides a deep learning-based apple core position acquisition method and application thereof, and the method comprises the steps: carrying out the data collection of the surface of an apple in a rotation process, and obtaining the surface image data; obtaining a complete three-dimensional point cloud model of the apple based on the surface image data; inputting the point cloud model into a pre-trained deep learning network to obtain global geometric and local curvature features; and obtaining the three-dimensional position coordinates of the apple kernel output by the deep learning network under the rotating table coordinate system, and obtaining the position of the kernel. The method has the advantages that although traditional X-ray or MRI detection can directly observe kernels, equipment is expensive and large in size, and potential safety hazards exist; according to the scheme, the result core positioning prediction can be completed only by depending on a common depth-color fusion camera, the apple does not need to be temporarily cut or irradiated, and nondestructive testing is achieved.

According to the blowing detection equipment and the detection method, the structure is simple, the accurate positions of the materials can be observed through a displayer, the overlapped and side-by-side materials can be distinguished through image processing, and the mistaken blowing or missing blowing process of the blowing nozzle can be directly observed through cached images. The device comprises a feeding module, a rotating disc module, a visual detection module and a material receiving module, the material receiving module comprises a material receiving support, an OK blowing module and an NG blowing module, and the visual detection module is arranged between the feeding module and the material receiving module and matched with a product at the loading disc end of the rotating disc module; the measuring method comprises the following steps: A, feeding and straightening a product; B, acquiring images of the product at different detection positions; C, comparing and controlling the state switching of the material receiving assembly according to image acquisition results; and D, synchronously detecting false blowing and missing blowing through the monitoring camera. The method is applied to the technical field of product sorting.

A method and non-transitory computer-readable medium for automating eFAST analysis of ultrasound scans. The method includes receiving at least one ultrasound image from one or more scan sites; processing the ultrasound image to determine whether there is a presence of one or more fluid pockets or free fluid present in the patient, the injury is selected from pneumothorax, hemothorax, and abdominal hemorrhage; and outputting a result from the processing. A model is trained on historical ultrasound images over a historical observation period, the historical ultrasound images associated with at least one injury determined directly observed presence of a fluid pocket or free fluid present in those images.

The invention relates to a drilling transient antenna assembly inspection method and system, belongs to the technical field of geophysical exploration, and solves the technical problem that after a drilling transient electromagnetic instrument is assembled, a wiring is packaged in a pipe body, and the correctness of the wiring cannot be directly observed and inspected, so that the potential quality hazard of a product is caused. According to the technical scheme, low-resistance anomalous bodies such as metal bodies are sequentially placed at preset positions in the positive direction of the normal of a receiving coil, an instrument is operated to enable a transmitting coil to transmit electromagnetic waves, the receiving coil collects original signals of a secondary field, wiring correctness is judged according to signal polarity, and a signal positive value indicates that wiring is correct. The technical effects are that wiring can be accurately checked through physical experiments and data analysis without dismounting an instrument, assembling quality is guaranteed, checking efficiency is improved, and detection data abnormity is avoided.

The utility model relates to the technical field of physical experiment equipment, and provides a Faraday electromagnetic experiment device, which comprises a base, and a magnetic field generation module, a magnetic field cutting module, a function demonstration board, an adjustable power supply and a mounting bracket which are arranged on the base, are integrated into an integrated structure and are easy to store and carry. The multifunctional characteristic is achieved, the angle between the magnetic field and the guide rail plane, the guide rail distance and the cutting speed can be automatically adjusted, and simple quantitative operation can be conducted; the demonstration board is arranged for qualitative demonstration and simple quantitative calculation, the operation is simple, the visualization degree of the embodiment is high, the demonstration effect is obvious, students can be well assisted in understanding teaching materials, that is, the factors influencing the induced electromotive force generated when the conductor cuts the magnetic induction line are visually observed, and the students are helped to perform quantitative analysis.

The invention relates to the technical field of refrigeration equipment, in particular to a refrigerator. According to the vacuum drawer of the refrigerator, the pressure relief part is externally arranged on the edge of the light-transmitting area of the drawer door body, so that a basis is provided for setting a single and continuous large-area light-transmitting area. The single continuous large-area light-transmitting area provides a basis for clearly observing the storage condition in the drawer body. Through the collaborative layout of the shooting device and the illumination module, the illumination module not only can supplement light for the shooting device, but also can provide light for direct observation through the light-transmitting area. Therefore, a user not only can directly observe the storage condition in the drawer body through the light-transmitting area, but also does not need to open the drawer body through pressure relief; and the storage condition in the drawer body can be determined through the image shot by the shooting device, and a door body of the refrigerator does not need to be opened. In addition, images shot by the shooting device can provide data support for intelligent management of food materials in the drawer body.

The application relates to the technical field of pull-off valve flow detection, and discloses a pull-off valve flow test equipment, which comprises a test water tank, a colorant mixing mechanism arranged on one side of the test water tank, a pulling force test mechanism arranged on the other side of the test water tank, a flow test mechanism arranged in the test water tank, observation windows symmetrically arranged on the inner walls of the two sides of the test water tank, and a liquid level meter arranged on the inner wall of one side of the test water tank. The pull-off valve flow test equipment keeps the water in the test water tank in a state of submerging the flow test mechanism, the colorant mixing mechanism dyes the water in the pull-off valve body, the pulling force test mechanism applies pulling force to the pull-off valve body, and the change of the flow loss of the pull-off valve body under different pulling force states can be more directly observed when the pull-off valve is pulled off; the observation windows can directly observe the color amount; the liquid level meter can measure the change of the liquid level of the added dyed liquid, and then the flow data can be measured and collected.

The utility model relates to the technical field of fire extinguisher valves, in particular to a fire extinguisher valve detection device which comprises a water storage tank, a water injection structure and a water return structure, the water storage tank comprises a tank body, a detection table is fixedly mounted at an opening of the tank body, and a water injection plug is fixedly mounted on the upper surface of the detection table; the water injection structure is embedded in the detection table; the water return structure is fixedly installed on the rear side surface of the box. According to the utility model, the opening at the bottom of the valve is clamped with the water injection plug opening, water stored in the water storage tank is injected into the valve through the water injection structure, whether leakage and water seepage occur when the valve is closed is observed firstly, the injection orifice of the valve is clamped with the water return structure to open the valve, and the sealing performance when the valve is opened is detected; after detection, water is introduced into the box body again through the water return structure, detection water is recycled, detection is carried out in a water supply mode, direct observation of detection personnel is facilitated, meanwhile, the detection water can be recycled through the water return structure, and resource consumption is reduced.

A ranging device, which relates to the field of instrument measurement. The ranging device is integrated with a ranging module (1) and a dual-color laser indication module (2), wherein the ranging module (1) is used for measuring the distance to a target object, the dual-color laser indication module (2) comprises a visible-laser assembly (22) and an infrared-laser assembly (23), the visible-laser assembly (22) is used for emitting a visible laser, the visible laser can be directly observed by human eyes, and an infrared laser emitted by the infrared-laser assembly (23) can be observed by a night-vision device. By means of providing the dual-color laser indication module (2), dual functions, i.e., a visible-laser function and an infrared-laser function, are integrated, such that different lasers can be used on the basis of different scenarios; if there is need to perform direct observation, the visible laser is used to irradiate a target object, and if there is need to improve concealment, the infrared laser is used to irradiate the target object; and when the infrared laser is used to perform indication and the ranging module is used to perform distance measurement at the same time, two emitted laser beams are not directly observed by naked eyes, such that a target distance can be measured without exposing the position of a user, thereby having higher concealment.

The application provides a transparent structure flow field image distortion correction system and method based on affine and B-spline grid transformation, which comprises a calibration paper, a structure outer sleeve box, a PIV system and a post-processing algorithm. The calibration paper is built in the structure and needs to cover the measured plane, and the distorted image can be directly observed; the structure outer sleeve water-tight box covers the measured structure, the box is filled with the solution in the structure, the observation window observed from the outside of the box is a plane, and the observed image distortion condition has been basically corrected; the PIV system comprises two high-speed cameras, a laser, a synchronizer and a computer; the polynomial mapping relationship of the images before and after the distortion is obtained through the post-processing software, the mapping relationship is reversely applied to the flow image inside the structure under the direct shooting condition, and the real flow condition without the distortion is obtained. The orthodontic effect is verified through the PIV test data of the flow field in the pipeline, and data support can be provided for the processing and analysis of the subsequent flow field test data in the complex structure.

The utility model relates to engineering test technical field, concretely is a kind of asphalt mixture slab test piece density testing device, including water injection tank, the front and back side wall of water injection tank is equipped with observation port, and observation port is provided with transparent plate;The outer surface of front side transparent plate is equipped with outside scale rule;The inside of rear side transparent plate is equipped with the inside water level ruler of vertical extension;Inside water level ruler is equipped with vertical sliding rail side, and the sliding block of vertical sliding is configured on sliding rail;Sliding block is connected with the suspension piece that can float on water surface, and suspension piece one end is equipped with the pointer of inside water level ruler direction.This utility model's beneficial effect lies in by the transparent plate (observation port) of being set up in front and back, allow direct observation water level change, avoid the cumbersome operation of traditional overflow collection;It is simultaneously provided with double scale rule of inside and outside to provide double reference, reduce visual error, and suspension piece is driven pointer along with water level rise and fall, directly indicate water level height on inside water level ruler, greatly simplify reading process and reduce artificial error.

This invention belongs to the field of planetary transmission system testing technology, and particularly relates to a test bench for testing the lubrication flow rate of planetary components in a transmission system. In this invention, the transparent shell allows direct observation of the actual distribution of oil under rotational conditions, and the gas isolation structure prevents oil cross-flow between planetary gear sets, ensuring the independence and accuracy of flow rate measurement. This test bench can simultaneously and independently measure the actual oil supply flow rate at multiple lubrication points, such as the sun gear-planet gear meshing area and planetary gear bearing cavities, at different speeds, thereby obtaining accurate flow distribution patterns. It overcomes the limitations of simulation methods in reproducing conditions such as strong centrifugal force and complex phase changes, providing a reliable physical experimental means for the design verification and optimization of lubrication systems, effectively improving evaluation efficiency and reducing development costs.

The utility model relates to a novel saturated soil body visual subsurface erosion test device which comprises a flat box body, and a box cover is detachably arranged at the top of the flat box body; a water inlet is formed in the top of the box cover and communicates with a communicating cavity in the box cover, and the communicating cavity is connected with a nozzle at the bottom of the box cover; a partition plate is fixed to the lower portion of the interior of the flat box through a step, a plurality of leakage holes are formed in the partition plate, a monitoring unit is installed on the partition plate between every two adjacent leakage holes, an upstream pipe is installed on the portion, on one side face of the flat box, of the bottom flow channel, a downstream pipe is installed on the opposite side face of the flat box, and stop valves are installed on the upstream pipe and the downstream pipe correspondingly. And a pumping device is mounted on the upstream pipe. According to the utility model, the section structure of the saturated soil body under the subsurface erosion effect can be displayed, so that direct observation from the outside is facilitated. According to the utility model, the activity influence of underground water is fully considered, so that the subsurface erosion process can be simulated more truly, and reliable data support can be provided for subsequent working conditions.

Tightness of a wearable device can be evaluated through direct observations of how the device responds to a physical stimulus. For example, by applying a varying pattern of vibrations such as a CHIRP signal with a haptic output element or the like to a device strapped to a wrist or other body part, the mechanical and / or optical response of the device can be measured to infer the amount of tension that is retaining the device against the body, or more generally, to evaluate whether the device is properly fitted to a user. Results can then be presented to a user objectively using Newtons or some other metric, or subjectively by providing qualitative assessments of fit. Recommendations for adjustments may also or instead be provided to the user for optimal performance of the wearable device.

The invention provides an early-stage focus multi-mode imaging observation endoscope system, and belongs to the technical field of medical apparatuses and instruments. An integrated electronic endoscope; the integrated electronic endoscope internally comprises an image processing device, an ultrasonic processor, a display, a natural light source device and a composite optical fiber, the system can quickly switch a white light mode and a narrow-band light mode, and tiny blood vessel abnormalities on the mucous membrane surface layer can be clearly shown; when a suspicious area is found, ultrasonic and opto-acoustic synchronous imaging can be started instantly, and the deep infiltration condition and metabolic activity information of a focus are obtained noninvasively; when pathology-level confirmation is needed, a multi-mode cooperative working mechanism of confocal microscopic imaging, in-vivo optical biopsy and direct observation of cellular morphology and glandular canal structures can be started, so that focuses, such as early cancerization and precancerous lesions, which are easy to be missed in diagnosis by a traditional endoscope can be found and identified earlier and more accurately, and the missed diagnosis rate and the misdiagnosis rate are remarkably reduced.

The application provides a portable sample stage for hydrate characterization. The portable sample stage comprises a housing, the housing comprising a sample chamber, a liquid injection chamber, and a communication tube connecting a bottom of the sample chamber and a bottom of the liquid injection chamber. The sample chamber further comprises a chamber cover assembly and a sample fixing assembly arranged in the sample chamber. The liquid injection chamber contains a cooling medium. The device can meet the requirements of direct observation at the excavation site and timely filling of cooling substances. In addition, the device is easy to carry and operate.

The embodiment of the invention relates to the technical field of electric power engineering, in particular to a cable line three-dimensional geographic information data interaction and parametric modeling method and system, and adopts a seven-parameter conversion method to unify underground pipe network data, overground remote sensing data and an important ground feature model to a 2000 national geodetic coordinate system, so that the problems that traditional coordinate conversion is rough, and the modeling efficiency is high are solved. For example, the problem of spatial dislocation caused by only using translation parameters is solved, the position corresponding relation between underground pipelines and ground features is ensured, semitransparent rendering is set for an underground pipeline model, entity rendering is set for a ground feature model, underground-ground scene superposition visualization is achieved, and operation and maintenance personnel can directly observe the distance between an underground calandria and a ground plant foundation. Whether the cable path passes through an overground wall or not is judged, and misunderstanding of a traditional two-dimensional drawing imagination space relation is avoided.

This invention discloses an automated high water pressure early warning tunnel segment component, relating to the field of TBM construction technology. It includes prefabricated tunnel segments, pre-drilled hoisting and grouting holes in the segments, an early warning component, and sealing mortar. The sealing mortar is placed between the pre-drilled hoisting and grouting holes and the early warning component, which is located within the pre-drilled hoisting and grouting holes. The pre-drilled hoisting and grouting holes are located within the early warning tunnel segments. This invention utilizes the aforementioned automated high water pressure early warning tunnel segment component, which is compact, low-cost, and easy to install, making it suitable for TBM tunnel segments. This device is an independent system, requiring no signal transmission, allowing for direct observation and convenient use in TBM tunnels. Furthermore, the device is detachable and reusable, saving resources and costs.

The application discloses a method for observing water distribution in a rock sample by using a splitting test, and comprises the following steps: (1) drying the rock sample; (2) preparing a dyeing agent for soaking the rock sample, selecting a dyeing agent with high contrast with the original color of the rock and a proper dye mass concentration; (3) soaking the rock sample in the dyeing agent; (4) smearing the surface of the rock sample with paraffin; (5) placing the rock sample in a splitting test device to perform the splitting test; and (6) placing the rock sample split into two halves in a place with sufficient light and taking a photo for storage. The method can avoid the problems of a large amount of heat generated in a traditional cutting mode and a long time consumption of nuclear magnetic resonance imaging, thereby affecting the water distribution in the rock, and has the advantages of simple operation and the effect of directly observing the real water distribution in the rock sample.

This invention discloses a dynamic erosion experimental system and method for single-hole perforation in extreme flow-limited fracturing. The system includes a fracturing fluid supply unit, a transparent fluid supply unit, a valve switching unit, an experimental section, a perforation morphology monitoring unit, and a jet pressure field mapping unit. The valve switching unit controls the connection between the fracturing fluid supply unit or the transparent fluid supply unit and the experimental section. The perforation morphology monitoring unit images the perforated sample. The jet pressure field mapping unit measures the pressure distribution of the jet ejected from the perforated sample during the connection between the fracturing fluid supply unit and the experimental section. This invention solves the problem of direct observation in opaque fluids through a "scouring-imaging" method. Combining sacrificial coating technology with direct measurement of jet performance, it can accurately and synchronously quantify the erosion process and its impact on jet performance, providing comprehensive and accurate data support for fracturing technology research.

The invention discloses a handheld telescope and an optical system thereof. The optical system comprises an objective lens group, a beam splitter prism group, an image rotation prism group and an eyepiece group which are sequentially arranged along a target light propagation direction, and a projection group matched with the beam splitter prism group, the beam splitter prism group separates target light through reflection and transmission effects to form two imaging light paths, one imaging light path is directly observed by human eyes through the image rotation prism group and the eyepiece group, and the other imaging light path forms digital imaging through the projection group. According to the optical system, target light is separated through the beam splitter prism group to form two imaging light paths, dual functions of human eye direct observation and digital imaging are realized, and the optical system can adapt to different use scene requirements.

This invention provides a high-aspect-ratio micro-hole inspection system and method using optical frequency multiplication technology. [Solution] The above micropores include, but are not limited to, through-silicon vias (TSV), through-glass vias (TGV), and through-SiC vias (TSiCV). By scanning fundamental frequency light of a specific wavelength along the axis of the micropore, the interface between the micropore and other materials (including, but not limited to, air) is excited, generating an intense interface-enhanced frequency multiplication signal. This allows for the acquisition of high-resolution and visualized micropore geometric structure images. The shape and appearance of the micropores can be directly observed from these images, or their quality can be judged. Furthermore, the frequency multiplication signal can be analyzed, enabling high-precision measurement of micropore size, shape, surface roughness, or the determination of defects and cracks, and can be applied to the manufacturing process control and quality control of high-aspect-ratio micropores.

The invention relates to the technical field of communication security, in particular to a quantization method suitable for atmospheric turbulence channel physical layer key extraction, which comprises the following steps: two communication parties firstly obtain time domain direct observation sequences through atmospheric turbulence channel detection, and respectively execute fractional order Fourier transform operation on the two groups of observation sequences; mapping to different transform domains to obtain complex signals; then traversing the candidate fractional order by constructing an optimization function, determining an optimal transformation order, extracting a real part of a transformation domain signal under the order to construct a real number characteristic quantity sum, and performing quantization processing on the real number characteristic quantity sum by adopting a double-threshold quantization algorithm to generate an initial key bit sequence sum; according to the technical scheme, the shared initial key with consistency and randomness can be generated by the two communication ends based on the optimal transform domain characteristics and the quantization rule, so that the high efficiency and robustness of physical layer key extraction under the atmospheric turbulence channel are achieved, and a light-weight and high-safety key generation scheme is provided for a wireless communication system.

The invention provides a visual comparison evaluation method and device for a concrete crack repairing effect. The visual comparison evaluation method for the repairing effect of the concrete crack comprises the following steps: prefabricating the crack: when a concrete test piece is poured, inserting an embedded sheet into unhardened concrete, and pulling out the embedded sheet after the concrete is hardened to form a simulated crack; crack end face plugging: plugging an observation surface of the crack by using a transparent plugging belt to complete prefabrication of a crack test piece; coating or injecting a crack repairing material: dividing the simulated cracks on the prefabricated crack test piece into two groups of wall cracks and plate surface cracks, and respectively injecting or brushing the repairing material; repairing effect observation and data acquisition: directly observing and measuring the filling depth of the repairing material in the crack under different repairing systems on the observation surface, and evaluating the repairing effects of the different repairing systems by comparing the filling depth; according to the method, the crack repairing effect can be visually and quantitatively evaluated at low cost, and data support is provided for repairing system selection.

The invention relates to the technical field of acoustic logging, in particular to acoustic logging equipment and an acoustic logging method.The acoustic logging equipment comprises a water injection hole packer, a hole packer guide rod, a pushing guide rod, an acoustic probe and an exhaust pipe, and a communicated hollow channel is formed in the water injection hole packer and the hole packer guide rod; the push guide rod slidably penetrates through the push guide rod, a third hollow channel is formed in the push guide rod, the sonic probe is fixed to the front end of the push guide rod, one end of the exhaust pipe is fixed to the top of the sonic probe, and the other end of the exhaust pipe is communicated with the inner channel of the push guide rod. An efficient and reliable directional exhaust path is constructed through an exhaust pipe and an internal channel of a pushing guide rod, and the problem that gas is retained at the top of an upward drilling hole is thoroughly solved; the visual phenomenon that water flows out of the tail end of the push guide rod is used as a full water indication signal, a clear and reliable judgment basis is provided for operators, and the accuracy of test data and the reliability of engineering application are remarkably improved.

This invention discloses a design method for an online monitoring system for direct observation of groundwater flow velocity, comprising an observation probe, a data acquisition terminal, and a cloud data platform. The system tracks the movement trajectory of colloidal particles in a well in real time using the observation probe. By reducing data randomness and redundancy through coordinate transformation and component accumulation, the discrete movement trajectory of colloidal particles is transformed into a continuous time-averaged displacement. Furthermore, the concept of cumulative flow velocity is proposed, clarifying the theoretical relationship between cumulative flow velocity and actual flow velocity under long-term monitoring. Through a conversion method involving pumping test calibration and conversion factor correction, the problem of difficulty in correlating particle motion state with actual flow velocity is solved. This enables online automatic monitoring and real-time data output, providing an efficient data channel for subsequent data analysis and application. It provides a basis for water conservancy departments to assess the rationality of groundwater extraction, for agricultural sectors to optimize irrigation schemes, and for environmental protection sectors to track pollution plume migration, forming a closed-loop application of monitoring-analysis-decision-making.

The application discloses a U-shaped pipeline gas-liquid erosion experimental device, which comprises a gas-phase injection system, a liquid-phase injection system and an erosion device connected with a pipeline; the gas-phase injection system is used for injecting gas into the pipeline; the liquid-phase injection system is used for injecting an ammonium chloride solution into the pipeline, and the tail end of the liquid-phase injection system is equipped with an atomizing nozzle; the erosion device is internally equipped with a U-shaped sample pipe used for erosion experiment; and the erosion device is equipped with a data collection and processing system; the detection precision is high, the injection conditions of the gas phase and the liquid phase can be accurately controlled through the gas-phase injection system and the liquid-phase injection system; the device has wide applicability and can be used for experimentally studying the influence of different ammonium chloride solution concentrations and air flow on pipeline erosion; the operation steps are simple, phenomena are obvious and direct observation is facilitated, and the experimental efficiency is improved.

The utility model relates to the technical field of informatization data, and provides a disease control informatization data processing device which comprises a collecting box, partition plates are arranged in the collecting box, a plurality of square grooves are formed in one side of the collecting box, the partition plates divide the interior of the collecting box into a plurality of compartments, a storage device is arranged in one compartment, and the storage device is arranged in the other compartment. The storage device comprises a clamping plate, and a square groove formed in one side of the collection box is filled with the clamping plate. According to the utility model, through the arrangement of the storage device, after personnel display the storage device from the interior of the collection box on the numerical control screen, informatization processing is carried out on data of the sample dishes by utilizing the numerical control screen, and after information input of a single sample dish is completed, the information of the single sample dish is stored in the storage device. The sample vessels are placed in the storage tank, the storage quantity condition of the sample vessels in the storage tank can be directly observed through observation grooves formed in the two sides of the storage tank, and when the sample vessels need to be taken out of the storage tank, the adjusting assembly is directly lifted upwards to drive the sample vessels to be taken out from a placement opening formed in the top end of the storage tank.

The utility model provides a portable laser detection device suitable for photoelectric tracking equipment, which comprises a convex lens, a mother board, a receiving board and a base, and is characterized in that the mother board and the receiving board are respectively mounted at two ends of the base; the mother board is provided with a through hole used for installing a convex lens. The distance between the receiving plate and the convex lens is equal to the focal length of the convex lens. A convex lens focusing principle is utilized, laser energy output by the laser rangefinder is converged to a metal plate at the focus of the lens, whether laser output exists or not is judged by observing whether sparks exist at a convergence point or not through naked eyes, the laser output capability is judged according to the spark brightness, and direct observation is facilitated. The device does not need to be installed on a device body, has no interface matching problem, can be repeatedly used, and is simple to use, convenient to carry, easy to store, low in cost, convenient to manufacture and convenient to popularize.