142results about How to "Easy to distinguish" patented technology

The invention discloses a blue-green algae identification and quantification method and device based on unmanned aerial vehicle remote sensing images and deep learning and a medium, and relates to the technical field of information data processing. Combining meteorological data and water quality monitoring data to construct an adaptive dynamic environment algorithm to extract EXIF metadata including camera parameters and attitude angle information, and establishing a geometric projection model to perform coarse orthographic correction on an original aerial image; the method comprises the following steps: extracting a multi-scale cyanobacterial bloom image feature map by stages based on a ResNet architecture and in combination with a feature pyramid network FPN fused with an attention mechanism, and obtaining an instance mask of cyanobacterial bloom through an anchor-free region proposal network, ROI Align and a head network; based on an improved GIS space projection and deep learning algorithm, carrying out high-precision area measurement and calculation on a binary mask image converted from the instance mask; according to the method, the influence of irrelevant interference on blue-green algae identification can be reduced, and the accuracy and comparability of blue-green algae identification and area calculation are improved.

The application discloses a primer combination, a kit and a method for detecting Aspergillus fungi based on targeted sequencing, and belongs to the technical field of microorganism detection. The primer combination comprises a primer pair for detecting common species of Aspergillus, and further comprises a primer pair for detecting at least one cryptic species of Aspergillus, wherein the common species of Aspergillus comprises Aspergillus fumigatus, and the cryptic species of Aspergillus comprises Aspergillus lentulus, Aspergillus udagawa, Aspergillus viridinutans and Aspergillus thermomodestus. The primer combination can be used for detecting Aspergillus fungi based on targeted sequencing, has high specificity and high sensitivity, can effectively distinguish Aspergillus fumigatus from the cryptic species, avoids misjudgment, and thus accurately guides drug use.

The invention provides an anti-semantic interference training method and a semantic communication method based on electroencephalogram joint learning. The method comprises the following steps: applying semantic interference to an original image to generate a disturbance image; respectively inputting the original image and the disturbance image into an image encoder to extract image features, and inputting corresponding electroencephalogram signals into an electroencephalogram encoder to extract electroencephalogram features; and based on the original image features, the disturbance image features and the electroencephalogram features, performing comparative learning through a bidirectional InfoNCE loss function, and updating parameters of an image encoder and an electroencephalogram encoder. Joint comparative learning is carried out through the electroencephalogram signals and the image data, the attention of an image encoder to key information is enhanced by utilizing the characteristics of the electroencephalogram signals, and therefore the robustness of a semantic communication system when the semantic communication system is attacked by semantic noise is improved. According to the method, the semantic interference resistance of a semantic communication system is enhanced based on the natural robust feature of the electroencephalogram signal, and the method is suitable for the complex situation that diversified and multi-type semantic interference exists.

The present application relates to the technical field of intelligent identification system of crop pests, in particular to a plant field pest fine-grained identification method, system, device and storage medium based on deep learning. The identification method provided by the present application is specialized in high-precision identification of real field scenes, and can provide technical support for important work such as future development of field inspection robot, automatic identification and monitoring system of field pests and the like. In addition to pest monitoring, the field biological safety test of genetically modified plants is gradually carried out at present, and by using the identification method provided by the present application, the dynamic change of farmland insect community can be quickly and accurately identified and predicted, so that the efficiency and accuracy of ecological investigation are greatly improved.

This invention relates to a yarn rack with a guiding function and its yarn loading process, belonging to the field of textile equipment. It includes a frame with several vertically arranged support rods within the frame, arranged in a rectangular array. Each support rod has several yarn bobbin hanging rods for hanging yarn bobbins. The ends of the yarn bobbins hanging from the support rods are inclined upwards. Each support rod also has a limiting part corresponding to a yarn bobbin hanging from it, located above the end of the corresponding yarn bobbin hanging from the support rod. When a yarn bobbin is hung on a yarn bobbin hanging from it, the end of the yarn bobbin facing the support rod abuts against the limiting part. At this time, the area of ​​the yarn bobbin hanging from the yarn bobbin is the initial hanging section. A color-changing indicator light is embedded in the surface of the initial hanging section of the yarn bobbin hanging from it. This invention indicates the color of the yarn bobbin that should be hung on each yarn bobbin hanging rod, thereby preventing workers from hanging the wrong yarn bobbins.

The utility model relates to the technical field of electrical cabinets, and particularly discloses a plate cabinet with an electrical debugging blank panel, which comprises a cabinet body, a blank panel which is arranged on the cabinet body and is matched with the cabinet body to form a closed cavity, and a terminal strip arranged in the cabinet body, the blank panel comprises a plate body provided with a debugging through hole and a sealing plate which is arranged on the plate body and is used for opening and closing the debugging through hole; and the debugging through hole is connected with the sealing cavity. According to the utility model, the debugging through hole is arranged on the blank panel, and the sealing plate is arranged on the debugging through hole, so that the debugging can be realized by opening the debugging through hole and extending the debugging cable into the cabinet body to be connected with the terminal strip during debugging, compared with the prior art, the blank panel does not need to be disassembled, the debugging efficiency is greatly improved, and the debugging cost is reduced. Deformation of the blank panel due to repeated disassembly of the blank panel during debugging is avoided.

The invention relates to the technical field of nucleic acid detection, and discloses a method and device for detecting and distinguishing radix trichosanthis, poria cocos and radix puerariae and terminal device.The method comprises the steps that genome DNA of a to-be-detected sample is extracted, a specific DNA fragment is amplified through a universal amplification primer and a specific amplification primer, and an amplification product is obtained; the method comprises the following steps: respectively constructing independent detection modules aiming at radix trichosanthis, poria cocos and radix puerariae, wherein each independent detection module comprises Cas12a protein, a test probe and specific crRNA; the specific crRNA is obtained by screening according to a PAM sequence and a detection contrast ratio. According to the invention, genome DNA of a to-be-detected sample is extracted, a universal amplification primer and a specific amplification primer are utilized, then an amplification product is added into an independent detection module, and specific crRNA is utilized to carry out specific recognition on the amplification product, so that a molecular detection system aiming at radix trichosanthis, poria cocos and radix puerariae is established, and effective distinguishing of different traditional Chinese medicinal material components is realized.

The utility model discloses a yarn placing rack which comprises a base, the top of the base is fixedly connected with a right side plate and a left side plate, a placing shaft is rotatably connected between the right side plate and the left side plate, a placing assembly is arranged on the placing shaft, a sliding groove is formed in the left side wall of the left side plate, a sliding block is slidably connected in the sliding groove, and a yarn placing assembly is arranged on the sliding block. A rack is fixedly connected to the left side wall of the sliding block, an inner electric rod is fixedly connected to the front side wall of the rack, and an outer box is fixedly connected to the left side wall of the left side plate. By arranging the placing shafts, the placing rods, the spacers, the outer sleeves, the outer limiting rings, the small electric rods, the stop rods, the inner limiting plates and the outer baffles, different types of yarns can be placed on the different placing rods, the yarns of the same type, different sizes and colors are placed on the same placing rod and are separated through the spacers, distinguishing and planning are easy, and the practicability is high. Excessive extrusion is avoided, and the extrusion force on the yarn is reduced.

The application belongs to the field of cable detection, and discloses a low-voltage cable comprehensive line searching device, which comprises a transmitter and a receiver; the transmitter comprises a power module, a modulation unit, an oscillation unit, a chopping unit, a voltage transformation unit, an isolation protection unit and an output unit; and the receiver comprises a cable identification sensor, a path detection sensor, a line searching signal detection unit, a power supply unit, a filter amplification unit, a power amplifier unit and an acoustic surface output unit. The device integrates cable path testing, cable identification and cable core line searching functions, and is lower in cost, portable and simple to operate, compared with the traditional cable path tester and cable identification instrument which are single-function devices, and can quickly solve the cable line inspection function and identification task in the transformer substation, complete the accurate cable line searching work, improve the work efficiency of the transformer substation cable inspection and replacement, and reduce or even eliminate the safety risk of the transformer substation reconstruction and expansion construction.

The utility model relates to the technical field of broadcast management, and discloses an airport terminal broadcast voice level broadcasting system, which comprises a broadcasting unit, a broadcasting unit and a control unit, the broadcasting unit and the broadcasting unit are both connected with the control unit, the broadcasting unit is used for sending broadcast information to the control unit, and the control unit is used for controlling the broadcasting unit. The control unit is used for controlling the playing unit to play broadcast information; the broadcast information is internally provided with a broadcast level label, the broadcast level label is used for storing the priority level of the broadcast information, the control unit is internally provided with a broadcast level control module, and the broadcast level control module is used for adjusting the playing sequence of the broadcast information according to the priority level in the broadcast level label. The airport broadcast management system has the beneficial effect of high airport broadcast management efficiency.

The application discloses a quantitative evaluation method for fusion degree of new and old asphalt in hot recycled asphalt mixture, and belongs to the field of recycled asphalt, and comprises the following steps: crushing and sieving the hot recycled asphalt mixture to a preset particle size range to obtain a to-be-tested sample; performing solvent extraction treatment on the to-be-tested sample to obtain an asphalt solution; and performing selective separation treatment on the asphalt solution under controlled conditions, wherein the controlled conditions comprise synergistic control of solvent type, extraction time and extraction temperature, so that unfused asphalt components at the interface between new and old asphalt and having low bonding strength are preferentially selectively dissolved out. Through the selective separation treatment under the controlled conditions, the unfused asphalt components at the interface between new and old asphalt and having low bonding strength are preferentially dissolved out, and the fused asphalt components with structural intergrowth are retained, so that the different fused asphalt components can be effectively distinguished without damaging the original structure.

The utility model discloses coal gangue sorting device relates to the field of sorting, including frame, the frame is installed with the feed end, the inner wall of feed end is installed with the crushing roller for carrying out the crushing of coal mine and gangue, the inner wall of frame is installed with the magnetic separation conveyer belt of carrying out the conveying of the coal mine and gangue after crushing, the inner wall of frame is slidably provided with screen cloth, the inner wall of frame is installed with the dredging assembly of dredging screen cloth, the utility model discloses the crushing roller of feed end can evenly break the coal mine and the gangue on the gangue to the same granularity, simultaneously, the application of magnetic separation conveyer belt has realized the quick sorting of the material after crushing, has effectively distinguished the gangue of rich magnetic substance and the coal mine of lower magnetic substance content, has improved the sorting efficiency.

The carbon dioxide responsive liquid crystal film containing amidine compound is formed by a cholesteric liquid crystal polymer capable of reflecting visible light and an amidine compound, and the film is prepared from the amidine compound, cholesteric liquid crystal monomer, crosslinking agent, chiral dopant, photoinitiator and porogen, and the amidine group in the amidine compound reacts with carbon dioxide to increase the hydrophilicity of the polymer network, and when water penetrates into the film, the light reflected by the film is red-shifted and the color is changed accordingly. The carbon dioxide responsive liquid crystal film prepared by the application has stable color change effect, obvious response effect, is easier to distinguish, is still reversible after multiple cycles, and the performance of the film is maintained well after multiple cycles.

This application discloses a GIS high-voltage switch housing with a safety protection structure for use in the field of high-voltage switches. This switch housing, through the inclusion of a sealing protection mechanism, allows the mechanism to monitor the sealing performance of the main housing. If a problem occurs in the sealing performance of the main housing, leading to SF6 failure... 6 When a gas leak occurs, the trigger board will activate the leak detection switch, causing the alert control module to activate the alarm and alert the staff. This allows staff to detect the gas leak in a timely manner and prompts them to conduct appropriate inspections and maintenance. This provides a protective effect, reducing the impact of problems with the casing's sealing. Furthermore, through the installation of gas sensors and gas analysis modules, when the leak detection switch is triggered, the sealing protection mechanism will also perform a self-check on its internal sealing to prevent false alarms. This avoids misleading staff and greatly improves practicality.

The application relates to a used commodity feature mining method and system, wherein the method comprises the following steps: reading a commodity quality inspection report to obtain text information; extracting one or more pending commodity features from the text information; adding the pending commodity features to a first information feature set of a function model to form a second information feature set; taking the first information feature set and the second information feature set as inputs of the function model to obtain a first prediction evaluation value and a second prediction evaluation value; and comparing the first prediction evaluation value and the second prediction evaluation value; and in response to the second prediction evaluation value being greater than the first prediction evaluation value, confirming that the pending commodity features are available. The application extracts available and effective commodity features from a commodity quality inspection report, thereby refining the description of the commodity, enabling downstream storage such as search, recommendation and other services to better distinguish commodities and provide more accurate recall commodities.

The bedside monitoring room alarm bracelet comprises a monitor and a bracelet body, a bracelet watchband is connected to the bracelet body, a wireless transmission module is installed on the monitor and is used for wirelessly transmitting monitoring information on the monitor, a processor module, a display module, an alarm module and a power module are installed on the bracelet body, the wireless transmission module is electrically connected with a wireless receiving module through wireless connection, the monitoring information collected by the monitor and received by the wireless receiving module is collected and processed by the processor module, alarm information is transmitted to the display module on the bracelet body, and the processor module simultaneously alarms and reminds medical staff wearing the bracelet through the alarm module, so that the medical staff can timely understand the condition of the patient, the bracelet is muted after alarming, the medical staff can know which patient under their jurisdiction alarms first, the alarm content and make a quick response.

The utility model provides a waterproof connector of straight head, including shell and the inner shell of being located in the shell inside, the main part is with rotatable mode and is connected to set up in the inner shell inside, the one end of cable is from the rear side and enters the inner shell inside and is connected with the terminal of being located in the main part inside, its characterized in that: the rear end outer periphery of cable is respectively equipped with waterproof plug and tail plug, the rear end of waterproof plug and the front end of tail plug axial abut, waterproof plug is located in the inside of inner shell, tail plug and the rear end fixed connection of inner shell, waterproof structure is all arranged between the inner wall of inner shell and the inner wall of shell and between waterproof plug outer wall and the inner wall of inner shell, waterproof structure is all arranged between the inner wall of inner shell and the inner wall of shell and between waterproof plug outer wall and the inner wall of inner shell, and waterproof plug is equipped with in the outer periphery of cable rear end, can effectual realization waterproof function in the inside of shell.

The utility model provides a crucible packaging tool for a differential scanning calorimeter, which comprises a fixed shell, the bottom end of the fixed shell is connected with a base in a sliding manner, a plurality of lower dies are arranged in the base, and a crucible is arranged on the surface of each lower die; the top end of the fixing shell is slidably connected with a pressing die, a plurality of fixing holes are formed in the pressing die, and upper dies are installed in the fixing holes. The upper die is in threaded connection with the first screw, and the top end of the first screw is clamped in the fixing hole; a rubber pad is mounted between the top end of the upper die and the pressing die; a stamping block is connected into the upper die in a sliding mode, and the stamping block extrudes a crucible cover. A first spring is installed in the upper die, and the two ends of the first spring abut against the first screw and the stamping block correspondingly. The crucible packaging tool for the differential scanning calorimeter has the advantages that a plurality of crucibles can be packaged at the same time, and the packaging effect is good.

The application relates to the field of object appearance detection, in particular to a cutting edge appearance detection method and a test device, which comprises dynamic clamping and pose calibration of a cutter through cooperative movement of a slide rail and a clamp, control of a Keyence digital microscope to scan the full length of the cutting edge along a spiral path, processing and segmentation of collected images, establishment of a defect feature database for defect identification, generation of a three-dimensional defect distribution heat map and transmission to an MES system, physical marking of defective products, and the like. The test device comprises a rack assembly, an adaptive clamp module, a multi-axis vision detection system, an angle control mechanism and a control unit and the like. The application can achieve the technical effects of high-precision and rapid detection of cutting edge appearance defects, realization of defect identification and marking, improvement of detection efficiency and quality, guarantee of stable and reliable production process and the like.

This application provides a point cloud processing method, electronic device, and vehicle. The method includes: acquiring a target point cloud from a target raster, where the target raster is any one of multiple rasterized rasterized initial point cloud cells; determining a raster feature matrix of the target raster based on the target point cloud, the raster feature matrix including basic features and auxiliary features of the target point cloud within the target raster, the basic features including at least the median height, interquartile range (IQM), gradient of the fitting plane normal vector, and terrain surface fitting residual of the target point cloud within the target raster, and the auxiliary features including at least the standard deviation of the height and the point cloud density of the target point cloud within the target raster; determining a ground raster from the multiple raster cells based on the basic and auxiliary features; and determining a ground point cloud based on the ground raster. This application embodiment can achieve high-precision and high-efficiency ground point cloud extraction in complex scenes.

This invention discloses a CPWC beamforming method based on adaptive parameter zero-subtraction imaging, applied to ultrasound imaging signal processing. It involves transmitting ultrasonic waves to a target object using an ultrasound array element module and acquiring the echo imaging signal dataset; calculating a time-delayed imaging dataset based on the echo imaging signal dataset using a delay processing module; calculating an adaptive offset parameter based on the time-delayed imaging dataset using a model combining the generalized coherence factor and the mean-standard deviation coefficient; and calculating the final imaging beamforming signal using a zero-subtraction imaging beamforming model based on the adaptive offset parameter and the time-delayed imaging dataset. This method effectively solves the contrast-resolution-speckle quality trade-off problem caused by fixed offset in zero-subtraction imaging, improving imaging quality, and is particularly suitable for high-frame-rate ultrasound CPWC imaging.

This utility model discloses a waste metal sorting device, comprising: a sorting box; a crushing unit disposed within the sorting box for crushing waste metal; a screening unit disposed within the sorting box for screening the crushed waste metal; and a lifting assembly disposed within the sorting box, which cooperates with the screening unit to lift the screening unit upwards. This utility model uses the crushing unit to break waste metal and complex mixtures into smaller particles, facilitating better differentiation and improving the sorting and classification of waste metal. The screening unit, in conjunction with the lifting assembly, accelerates the screening process of waste metal through continuous vibration, preventing larger particles from accumulating and clogging the screen holes. Furthermore, the magnetic component can attract magnetic metals, quickly separating them from non-magnetic metals, reducing manual intervention and improving sorting efficiency.

This invention discloses a radiation source signal classification method based on pulse-level multi-source separation, mainly addressing the problem of poor radiation source signal classification performance in complex electromagnetic environments using existing technologies. The implementation steps are as follows: 1) Receiving broadband intermediate frequency or baseband signals and performing pulse detection; 2) Estimating the direction of arrival and constructing pulse descriptors for the detected pulses based on a multi-element antenna structure; 3) Modeling a pulse-level multi-dimensional feature space and performing density peak clustering based on temporal consistency constraints within this space; 4) Adaptively estimating the number of radiation sources and reconstructing the pulse sequence, performing multi-physical domain feature extraction; 5) Fusing the multi-physical domain features to complete the classification and identification of radiation source signals. This invention can effectively distinguish pulses from different radiation sources in complex electromagnetic environments, while effectively reducing the system's storage and computing resource consumption while ensuring high recognition performance.

The application provides an environment monitoring method and device based on wireless sensor network joint self-learning, and relates to the field of Internet of Things monitoring.The method comprises the following steps: acquiring an original time sequence and determining the total iteration number of each edge node;at each edge node, the original time sequence is normalized, segmented, aggregated and approximately calculated, and symbolized according to the total iteration number, to generate a discrete finite symbol sequence;the discrete finite symbol sequence is subjected to abnormal probability calculation to generate a single local anomaly detection threshold;at the convergence node, the single local anomaly detection threshold is subjected to weighted fusion to obtain a weighted threshold;the single local anomaly detection threshold is updated through the weighted threshold until the iteration ends, the local anomaly detection threshold is output, and the anomaly detection of the environment is completed.The scheme effectively reduces the storage and calculation costs, realizes the communication between nodes, balances the energy consumption of the edge nodes, and improves the detection accuracy.

The invention discloses a circulating tumor cell physicochemical screen and application thereof. The circulating tumor cell physicochemical screen comprises a body, a reaction tank is arranged in the body, at least two liquid inlets are formed in one end of the reaction tank, a liquid outlet is formed in the other end of the reaction tank, a plurality of reaction areas are arranged between the liquid inlets and the liquid outlet, and a plurality of micro-columns are arranged in each reaction area; along the direction from the liquid inlet to the liquid outlet, the distance between the micro-columns in each reaction area is gradually reduced. The circulating tumor cells are sorted in a mode of combining physical blocking and chemical adsorption, the distance between the microcolumns in each reaction area is gradually reduced, screening of the CTC cells is facilitated, further observation and judgment are also facilitated, compatibility to various coloring agents is good, and the application range is wide.

The application discloses a method for accurately obtaining three-dimensional surface topography of a sprayed coating, and belongs to the technical field of coating surface treatment. A sample to be measured is placed inside an envelope formed by small columns; the sample to be measured and the small columns are solidified, polished and photographed to obtain a cross section of the sample to be measured; the polishing and photographing steps are repeated, and the polishing thickness is not more than 1 / 10 of the minimum feature of the surface fluctuation of the sample to be measured in the direction parallel to the upper surface of the sample to be measured; finally, the obtained cross section photos are imported into software with functions of reading and drawing graphs, two-dimensional topography curves of the cross section features of the combined sample and different positions of the sample to be measured in the cross section of the combined sample are extracted, and the two-dimensional topography curves are imported into software for constructing three-dimensional topography and placed according to the position relationship determined in the foregoing to obtain three-dimensional topography features of the sample to be measured. The method can more accurately predict the stress distribution and crack initiation and propagation behavior of the coating at complex topography during service.

The utility model discloses a small color code sheet inductance, include: pin, shell, numerical color code sheet, coil, error color code sheet, two place pin is located at shell both ends, and two place pin inboard end goes into shell inboard connection coil both ends, and numerical color code sheet and error color code sheet are located at shell upside, and error color code sheet is located at numerical color code sheet right side, the utility model discloses with color code sheet replaces color ring inductance color ring, and color code mark is clearer, and the clear, and color code sheet can also act as the fin effective improvement heat dissipation, and the lead tin alloy plating of shell can block electromagnetic radiation, and reduce the magnetic leakage, thereby can improve small inductance power, and promote small inductance miniaturization.

This invention discloses a space-ground coordinated radiometric characteristic calibration method for spaceborne active microwave sensors in the field of radar Earth observation technology. It constructs a space-ground coordinated calibration system consisting of a radiation reference source satellite and a ground calibration processing station. The method includes: determining the orbital parameters of the radiation reference source satellite; the satellite transmitting signals to the ground station in Earth observation mode, using a known RCS target on the ground to calibrate its own antenna gain and link gain; receiving signals from the satellite to be calibrated in Earth observation mode, accurately calculating and transmitting echo signals based on the calibrated parameters; and the satellite to be calibrated calibrating its own transmit / receive link gain based on the received echo signals. This invention can be widely applied to the on-orbit radiometric calibration of active microwave sensors such as synthetic aperture radar, altimeters, and microwave scatterometers, significantly improving calibration frequency and accuracy, supporting multi-band, high-stability quantitative remote sensing tasks, and providing reliable technical support for precise observation in fields such as ocean monitoring, weather forecasting, and topographic mapping.

The application relates to the technical field of medical image processing, in particular to a root canal system three-dimensional reconstruction and isthmus identification method and system based on a CBCT image, which comprises the following steps: acquiring CBCT original image data; pre-processing the CBCT image; performing root canal system three-dimensional reconstruction on the pre-processed CBCT image; performing clustering segmentation based on a differential geometry theory on root canal cross sections in the root canal system three-dimensional reconstruction result to extract isthmus features, wherein the clustering segmentation based on the differential geometry theory comprises the following steps: super voxel segmentation driven by curvature flow, elliptical fitting and long axis extraction on a Riemann manifold, isthmus feature extraction by combining a geodesic distance field and a Hough transformation; and marking the isthmus of the root canal system three-dimensional reconstruction result by using the isthmus features, wherein the application realizes accurate identification of a root canal isthmus by introducing the differential geometry theory, improves identification accuracy, and significantly improves the success rate of root canal treatment.

This application relates to a test tube rack based on contrast differentiation and its usage method. This application utilizes a dividing device on the test tube rack to differentiate test tube placement; it employs a 180° complementary color design to increase visual impact. This test tube rack with differentiation function can help nurses quickly and effectively distinguish test tubes from different patients, as well as the blood collection area and the non-blood collection area. Furthermore, this solution uses a movable dividing device to differentiate test tube placement, abandoning a fixed test tube placement structure, allowing for flexible and varied placement. The space of the test tube rack can be used according to needs, avoiding waste of test tube rack space resources and improving test tube rack utilization.